Wireless intelligent sensing system and intelligent sensing method
The wireless intelligent sensing system addresses wireless interference and communication delays by adapting frequencies and integrating power transmission, ensuring reliable and efficient patient monitoring with reduced staff workload.
Patent Information
- Application Number
- CN202411108704.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-13
- Publication Date
- 2024-12-06
AI Technical Summary
Existing wireless monitoring systems in nursing institutions face issues such as wireless interference, communication delays, unreliable data transmission, frequent battery replacements, and lack of integrated video/audio communication, leading to inefficiencies and safety risks for patients and staff.
A wireless intelligent sensing system with adaptive frequency adjustment, two-way communication, integrated power transmission, and sealed sensors, along with video/audio capabilities, to enhance monitoring reliability and efficiency.
The system reduces wireless interference, ensures timely communication, extends battery life, and provides comprehensive patient monitoring, improving safety and reducing staff workload.
Smart Images

Figure CN119094915A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of intelligent sensing, and in particular to a wireless intelligent sensing system and an intelligent sensing method. Background Art
[0002] In recent years, with the increasing number of patients and elderly people, the demand for nursing has become more and more urgent, and the requirements for nursing quality and satisfaction have become higher and higher. The demand for nursing staff in hospitals and nursing homes has increased year by year, and the labor cost pressure of nursing staff has become increasingly high in various countries, and the operating pressure of hospitals and nursing homes has become increasingly greater; due to the poor working environment of nursing staff, the work intensity and work pressure are very huge, which has become the main reason why many people are unwilling to engage in nursing profession. There is a general shortage of nursing staff in various countries, and the salary and benefits of nursing staff continue to rise; in order to adapt to the new situation of the industry, the introduction of wireless intelligent monitoring systems to improve the quality of nursing, effectively control various risks, optimize the working environment and working methods of nursing staff, and at the same time reduce the labor costs of nursing institutions are becoming urgent needs of nursing institutions such as hospitals and nursing homes.
[0003] The wired monitoring systems currently used in the industry generally have shortcomings. First, a large number of high-cost cables need to be laid in the nursing institutions. In particular, the cables between sensors and monitors often pose a risk of tripping and falling to patients, nurses, and cleaners. It is impossible to monitor the sleeping position of patients and provide timely help to turn over to prevent bedsores. It is impossible to provide timely care for patients with incontinence, which makes the patients' living conditions very poor and even causes skin ulcers and infections. If patients need high-quality care, they must be arranged for special people to accompany them in the ward, which is very costly. Moreover, due to the wiring of cables, wired monitors can only be fixed at the nurse station, and wireless information receiving devices cannot be provided for nurses to carry with them. Nurses cannot receive alarm information and prompt information in a timely and effective manner, causing various risks for patients due to the inability to receive timely care. Information can only be transmitted between nurses and between nurses and managers of nurse stations through walkie-talkies, which is very inefficient and the information that can be transmitted is also very limited. When patients have serious physical conditions, especially when they are unable to move, they cannot use wired The call button sends an emergency call, which causes serious risks to patients due to the inability to obtain timely rescue; the wired monitoring system cannot provide monitoring data records for each patient in each room, nor can it provide data records of the actual working status of each nurse. In the absence of these data records, the managers of the nursing institution cannot obtain all monitoring alarm analysis and statistical reports within the nursing institution, as well as the work record analysis and statistical reports of each nurse or staff member. The managers cannot play back and analyze the events that occurred, including serious events, through the recorded data, such as when the patient was under monitoring, when he left the bed, when the nurse received the alarm, where the nurse received the alarm, which nurse went to the ward to respond to the alarm, when the nurse arrived at the ward, when the nurse could not handle it alone, when the support nurse arrived at the ward, which support nurse, etc. It is impossible to grasp the actual working status of medical staff, conduct performance appraisals, and formulate nursing improvement plans. This limits the hospital's improvement of nursing management and cannot provide satisfactory care for patients.
[0004] As a senior technical expert in the industry, the inventor has specially invented an Internet of Things-based intelligent wireless sensor monitoring system to address the above problems. The system can enable nursing institutions to increase the number of nursing objects that can be supervised by a single nursing staff and accompanying staff at the same time while taking into account safety and nursing quality, so that each nursing staff and accompanying staff can easily complete the effective and efficient monitoring and care of multiple nursing objects (up to more than a dozen patients can be supervised at the same time), greatly improve the working environment of nursing staff and the risk of being infected with pathogens, greatly reduce work intensity and work pressure, effectively reduce the operating costs and operating risks of nursing institutions, meet the general and urgent needs of the entire industry, and greatly improve the nursing environment of the nursing objects, so that they can get safer, more comfortable, more dignified and more intimate care. Patients can take the initiative to make video calls with nursing staff and accompanying staff when needed; when patients are alone in the ward, nursing staff can grasp the patient's physiological indicators and location information at any time to ensure that when patients leave the ward alone without anyone to accompany them, they can receive timely notifications to go to the hospital for treatment to avoid risks; patients can also make video calls with relatives and friends to obtain a more satisfactory hospitalization environment and a better experience; managers can also use wireless The intelligent receiving terminal monitors the occupancy of beds in the entire ward in real time to improve the utilization rate of beds; the intelligent wireless sensor monitoring system can provide monitoring data records for each patient in each room, as well as data records of the actual working status of each nurse. Based on these data records, the managers of the nursing institution can obtain all monitoring alarm analysis and statistical reports in the nursing institution, as well as the work record analysis and statistical reports of each nurse or staff member. The managers can replay and analyze the entire process of the events that occurred, including serious events, by recording data. For each patient, a monitoring alarm analysis and statistical report, as well as the work record analysis and statistical report of each nurse or staff member, are generated. Hospital managers can replay and analyze the events that occurred, including serious events, by recording data, such as when the patient was in the monitoring state, when he left the bed, when the nurse received the alarm, where the nurse received the alarm, which nurse went to the ward to respond to the alarm, when the nurse arrived at the ward, when the nurse could not handle it alone, when the support nurse arrived at the ward, which support nurse, etc., that is, by grasping the actual working status of medical staff and conducting performance appraisals, nursing improvement plans can be formulated.
[0005] Government medical institution regulatory departments and insurance company personnel can also use recorded data to replay and analyze the entire process of events, including serious incidents, to obtain original data as reliable evidence, provide a reliable basis for nursing quality assessment of nursing institutions, for accident investigation and liability determination, and provide direct evidence for resolving medical disputes.
[0006] In the prior art, the patented technical solution of US7924163b1 has been disclosed, which is a cordless or wireless pressure pad connected to a mattress transmitter, which is in wireless communication with a nearby mattress monitor; if remote or centralized monitoring is required, the bed monitor can serve as a programmable sending unit to relay the signal from the mattress to the central bed monitor receiving and alarm unit; in use, the pressure pad transmits a single-frequency wireless signal or a broadband frequency-hopping signal to the bed monitor, and if necessary, it can also be transmitted to the central monitor to prompt the nursing staff that the patient has gotten out of bed or fallen off the bed.
[0007] This invention is a patented technology of wireless sensors and wireless monitors in the same technical field as this patent, and is also one of the most important wireless monitoring patents in the medical and elderly care industries. It uses wireless communication technology to eliminate the connecting cable between the pressure pad and the nearby mattress monitor, thereby realizing wireless monitoring of patients. Compared with traditional wired monitoring solutions, it has obvious innovation and practicality, especially in eliminating the interference of connecting cables and alarm noise to patients. Since the launch of wireless monitoring products developed based on this patented technology, they have become increasingly popular in hospitals and nursing homes in the mainstream markets of Europe and the United States, and are gradually replacing wired monitoring products. Upgrading trend is forming.
[0008] However, the invention still has some shortcomings, and the following content is only a partial description of its shortcomings:
[0009] The wireless communication between its wireless transmitter and the mattress monitor may be because there may be as many as a dozen to dozens, or even more than a hundred similar systems in a ward of a hospital, and there may be hundreds or even thousands of wireless transmitters. However, the patent does not set the initial wireless working frequencies of these wireless transmitters at different initial wireless working frequencies. When they work at the same time at the same initial wireless working frequency, they will form mutual same-frequency wireless interference. Although wireless communication can be performed again by frequency hopping communication with a change of the wireless working frequency, this will cause communication delays. A large number of repeated wireless communications may cause wireless communication congestion; thereby causing the alarm reception time to be delayed, affecting the timeliness of the nurse's response to the alarm; since only simple communication data monitoring methods such as parity check are used, there is a lack of effective monitoring of the correctness of the communication data, which may lead to insufficient reliability of wireless communication; especially compared with wired monitoring products, there is a problem of insufficient reliability.
[0010] When wireless interference of certain frequencies occurs in a ward area, especially frequent radio interference occurs at its initial wireless working frequency, the system may be unable to work properly, and the system cannot automatically adjust the initial wireless working frequency to avoid the wireless interference. It can only monitor the wireless communication and notify the nurses to deal with it after discovering that the wireless system cannot work properly. However, the system does not provide nurses with any means and measures to deal with radio interference. Nurses can only be forced to temporarily deactivate the wireless monitoring system and temporarily use the wired monitoring system instead, which affects the monitoring effect and creates additional workload and trouble for nurses.
[0011] When a patient turns over or moves in bed, even if his body does not leave the bed, the patient's weight will be removed from the pressure pad for a short period of time, causing the pressure pad transmitter to send a false wireless alarm signal to the mattress monitor, causing the nursing staff to run around in vain.
[0012] Its wireless transmitter can only send an alarm signal to the wireless mattress monitor or the nurse's wireless alarm receiving terminal after the patient leaves the bed, but it cannot send an alarm signal when the patient has a clear tendency to leave the bed but has not yet left the bed; after the nurse arrives at the ward, the patient has been out of bed for some time, during which time the patient is prone to falls. According to feedback from hospitals and nursing homes, it can only reduce the occurrence of falls by about 30%, limiting the ultimate goal of the monitoring system to prevent patients from falling and the actual effect of preventing falls.
[0013] When the system is used for wheelchair monitoring, since the wheelchair may appear at any location in the entire hospital or nursing home to issue an alarm, the wireless transmitter cannot provide the nurse with the exact location information of the wheelchair. As a result, the nurse is still unable to quickly find the patient's location after receiving the alarm, and is unable to prevent the patient from falling by quickly finding the patient.
[0014] This patented technology does not include image or audio / video devices. When an alarm occurs, there is no video or voice communication between the nurse and the patient. The nurse cannot quickly understand the patient's condition or comfort the patient while they are waiting for care. It is also impossible to conduct video monitoring and care through cameras and two-way talk devices. A single wireless monitoring system cannot provide sufficient safety guarantees for patients. When a patient is in dangerous condition, the situation cannot be grasped in time, and timely and correct care cannot be provided to the patient.
[0015] Its wireless transmitter and wireless mattress monitor are both powered by batteries or wired power adapters. The wireless transmitter is limited by the battery capacity and the battery needs to be replaced regularly. The use of wired power adapters may be restricted in the ward due to safety considerations. In many cases, wireless mattress monitors can only be powered by batteries. Replacing batteries creates an additional workload for nursing staff.
[0016] In order to solve the problem of frequent battery replacement, the wireless transmitter must use a larger capacity battery, which in turn causes a larger protrusion on the surface of the sensor or transmitter. Especially when used for bedside ground monitoring, the larger protrusion on the wireless sensor can easily cause the patient's feet to trip and fall.
[0017] The pairing and unpairing between the wireless transmitter and the wireless mattress monitor requires nurses to perform a series of operations, which takes a certain amount of time to complete. Especially in hospitals where new disposable pressure pads or wireless transmitters need to be frequently replaced, this will affect the work efficiency and operating experience of nursing staff.
[0018] Due to the limitations of its patented technology, its wireless transmitter and pressure pad do not adopt a completely sealed and waterproof structure. In actual use, the patient's body fluids or other liquids may penetrate into them, and they cannot be fully cleaned and thoroughly disinfected, and there is a risk of cross-infection caused by their germs.
[0019] When the nurse responds to the alarm and comes to the ward to take care of the patient, the wireless transmitter is still in working condition and cannot enter the temporary standby state; when the nurse moves the patient, the patient's weight will be removed from the pressure pad or removed for a short period of time, causing the pressure pad transmitter to send a false wireless alarm signal to the mattress monitor, causing trouble to the nurse and even other nurses or managers who can receive the alarm signal.
[0020] The system only has a single bed leaving alarm monitoring function, and cannot monitor the patient's sleeping position in bed. Especially when the patient stays in the same sleeping position for a long time, it is easy to cause bedsores or even skin ulcers, which is a common problem in hospitals and nursing homes.
[0021] The system only has the function of monitoring whether the patient has left the bed, but not whether the patient has urinated or defecated. For some patients with urinary and fecal incontinence, the nurse will not be able to provide timely care to the patient after the patient has urinated or defecated for a period of time because they are unaware of this situation, which affects the quality of care for the patient.
[0022] The wireless monitoring system does not have the function of remote wireless ward rounds, nor does it have a self-check function to check whether the wireless monitoring system is in a normal monitoring state. It is impossible to know whether the patient is in bed or other locations, or even whether the patient has left the ward. In order to ensure the normal operation of the monitoring system, nurses can only regularly go to each ward one by one to check on the patients and check whether the monitoring indicator light of the monitoring system is in a normal monitoring state, which causes trouble to the patients and increases the workload of nurses running back and forth.
[0023] When the system fails, it does not provide remote diagnosis and repair functions, and can only notify professional maintenance personnel to come to the hospital for diagnosis and repair, which affects the efficiency of ward use and also creates a burden for maintenance personnel to pay for door-to-door service and repair.
[0024] Its wireless mattress monitor or central monitor does not have the recorded data of the alarm information received, and cannot generate a monitoring alarm analysis and statistical report for each wireless mattress monitor, as well as a work record analysis and statistical report for each nurse or staff member. Hospital managers cannot replay and analyze the events that occurred, including serious events, through the recorded data, such as when the patient was under monitoring, when he left the bed, when the nurse received the alarm, where the nurse received the alarm, which nurse went to the ward to respond to the alarm, when the nurse arrived at the ward, when the nurse could not handle it alone, when the support nurse arrived at the ward, which support nurse it was, etc., and cannot grasp the actual working status of medical staff and conduct performance appraisals and formulate nursing improvement plans.
[0025] Wireless mattress monitors, central monitors or nurse mobile information receiving terminals all use LED indicators and LCD displays, and do not use ultra-low power ink screen displays, touch keyboards or digital input keyboards. There is a problem of relatively large power consumption, especially when powered by batteries, which will affect the battery life cycle. It is also impossible to input various parameters or modify parameters through wireless monitors. Only limited types of parameters can be set through dip switches or toggle switches. Moreover, the operation is very inconvenient and there is a risk of illegal tampering of the set parameters by non-staff.
[0026] See also Fig.18 , has disclosed the patented technical solutions of US20240074677A1 and US11776374B2, which are patented technical solutions similar to this patent in the same application field. Its wireless pairing method patent is also the wireless pairing method patent that is closest to the contactless pairing method of this patent; although it also achieves the same technical effect of short-range wireless pairing, its patented technical method has a gap with the technical effect of the present invention in terms of system complexity, cost and power consumption.
[0027] Continue to see Fig.18As shown, it discloses a short-range pairing method based on NFC technology and Bluetooth wireless communication technology. Its wireless sensor includes both NFC wireless module and Bluetooth BLE wireless module, and its wireless monitor also includes both NFC wireless module and Bluetooth BLE wireless module. Since both the wireless sensor and the wireless monitor use dual wireless modules, the cost of the product is relatively high. Its working principle is that when the wireless sensor and the wireless monitor are close to each other, the NFC wireless modules of both parties can achieve wireless connection through NFC near-field communication, and then trigger the Bluetooth wireless modules of both parties to perform two-way wireless communication, thereby achieving wireless pairing. Its main disadvantage is that in order to ensure the realization of the wireless pairing function, the NFC wireless module and Bluetooth BLE wireless module circuits of both parties need to be in the power-on state or in the power-on state at periodic intervals, especially the wireless receiving circuit is always in the power-on state or in the power-on state at periodic intervals. The wireless sensors and wireless monitors are in the on-state at intervals, which will cause the working current consumption and power consumption of the wireless sensors to be relatively large. In order to support the relatively large power consumption, the wireless sensors need to use relatively large-capacity batteries to provide electrical energy, and the current consumption is relatively large. Even so, the battery life of the batteries is relatively short. Similarly, the working current consumption and power consumption of the wireless monitors are relatively large, and relatively large-capacity batteries are also needed to provide electrical energy. Even so, the battery life of the batteries is relatively short. In order to reduce the extra workload brought to nursing staff by frequent battery replacement, an external power adapter is also needed to provide power to the wireless monitor. However, the cable of the power adapter in the ward may cause patients or medical staff to be tripped by the cable, which is a major safety hazard. It will also affect the cleaning and disinfection work of various facilities in the room by cleaning staff, and may lead to the risk of cross infection.
[0028] Bluetooth BLE wireless communication technology is a communication technology specially developed for home wireless devices. Its wireless receiver is usually only in a small area. For example, one or several Bluetooth transmitters are connected to a room through Bluetooth to ensure that its wireless communication can basically work normally. Although Bluetooth BLE wireless modules also use dozens of wireless communication frequencies, the initial wireless frequency of each Bluetooth BLE wireless module is fixed or random. When this technology is used as a wireless module for medical monitoring equipment in the same hospital ward with hundreds of wireless sensors and wireless monitors, especially when they are in the working state of wireless communication at the same time, wireless co-frequency interference may occur in the wireless communication at the initial wireless frequency. This wireless co-frequency interference may come from the wireless communication of similar Bluetooth devices in adjacent wards, which will cause wireless communication conflicts and wireless communication interference. Although the Bluetooth communication protocol can detect communication anomalies and switch the communication channel through frequency hopping communication to perform wireless communication again and again for multiple times, and finally restore normal communication, it will cause delays in the transmission and reception of wireless communication data. Delays in receiving alarm information may cause danger to patients.
[0029] The patented technical solution of CN203720987U has been disclosed. As a sensor pad with low cost, high sensitivity, low false alarm rate, no switch signal output delay, and comfortable use, it significantly improves the daily life experience of the care recipients in the elderly care service institutions. However, the existing intelligent elderly care products, when applied to smart elderly care service scenarios, do not take into account the specific needs of the care recipients, which is likely to increase the risks within the smart elderly care service institutions, and further lead to unnecessary accidents when the care recipients live in the service institutions. Therefore, in view of the above-mentioned existing technical defects, the industry needs to develop and design a technical solution for wireless intelligent sensing. Summary of the invention
[0030] The present invention proposes a wireless intelligent sensing system, the system comprising: a wireless intelligent sensor and a wireless receiving device, the two being communicatively connected; the wireless intelligent sensor is used to monitor the status of a patient, and when a dangerous status occurs, it can send the patient ID and alarm category information to the wireless receiving device, and the wireless receiving device displays alarm prompt information including location information, patient risk level data, and alarm category information; the wireless intelligent sensor comprises a sensor body and a wireless transmitting device connected thereto, the wireless transmitting device and the wireless receiving device are respectively connected to respective energy modules; the wireless transmitting device and the wireless receiving device are connected via two-way wireless communication, and can mutually transmit information via the two-way wireless communication, including but not limited to text information, image information, sound information, setting or control information; The wireless transmitting device is connected to the pairing sensor, and the wireless receiving device includes a pairing signal field generator; when the pairing sensor and the pairing signal field generator are close to each other, the pairing sensor can sense the signal field generated by the pairing signal field generator and trigger the wireless transmitting device to enter a pairing state; the intensity of the signal field can be constant or variable; the sensor body includes but is not limited to a pressure sensor body, and the pressure sensor body, the wireless transmitting device, the energy module of the wireless transmitting device, and the pairing sensor are encapsulated in a complete whole through the upper epithelial layer and the bottom epithelial layer of the pressure sensor body to form a wireless intelligent pressure sensor, and when the wireless intelligent pressure sensor is placed flat on a horizontal plane, its upper surface is a flat surface.
[0031] Its further technical solution is that the dangerous state includes but is not limited to dangerous position state, body position state, physiological state, emergency state including falling and emergency call, and different danger levels of the dangerous state correspond to different categories of the alarm category information, including but not limited to prompt, early warning, alarm, emergency alarm; the pairing process also includes the wireless transceiver circuit of the wireless receiving device being in the power-on state or intermittent power-on state, and after entering the pairing state, the wireless transmitting device transmits a wireless pairing signal, which may include the device category code and device life code of the wireless transmitting device, and the wireless receiving device receives the wireless pairing signal and transmits a wireless pairing response signal at the same time, which may include the patient I D. The ID of the wireless receiving device, the two paired parties establish the wireless connection; if before pairing, the wireless transmitting device to which the wireless receiving device has been wirelessly connected has the same device category code as the wireless transmitting device in the pairing state, the existing wireless connection is disconnected; the wireless receiving device can also be connected to the pairing sensor, and when in the non-pairing state, its wireless transceiver circuit can be in the off state or the standby state, and when the pairing sensor detects the pairing signal field, its wireless transceiver circuit enters the on state or the intermittent on state; one wireless receiving device can be used as a wireless receiving host to wirelessly connect one to multiple wireless receiving slaves. The wireless receiving device establishes the two-way wireless communication relationship to achieve the wireless connection; the wireless receiving host can send the received information data to one or more wireless receiving slaves through the two-way wireless communication to achieve information data synchronization between the wireless receiving host and the wireless receiving slaves; wherein, the wireless receiving host may include the wireless transmitting device, and the wireless receiving slave may include the wireless receiving device; the wireless receiving host may also be connected to the pairing sensor, and the wireless receiving slave may also include the pairing sensor. When the pairing sensor and the pairing signal field generator are close to each other, the pairing sensor can detect the close pairing occurrence The pairing signal field generated by the device triggers the wireless receiving host and the wireless receiving slave to enter the pairing state, and establish the two-way wireless communication relationship to achieve the wireless connection; the pairing process also includes the wireless transmitting device receiving and storing the patient's ID, the patient's risk level, and the ID of the wireless receiving device included in the wireless pairing response signal, and the wireless receiving device establishes a corresponding relationship between the patient's ID, the device category code, the patient's information and the patient's location information, and can generate the location information, the patient's risk level data, and the patient's information included in the alarm prompt information; and also includes setting wireless communication parameters for the wireless transmitting device through the wireless receiving device;After the pairing process is completed, the two parties of the two-way wireless communication use the set wireless communication parameters to establish the wireless connection; the wireless connection may also include the wireless transmitting device transmitting the patient's information including physiological parameter information, patient status information, posture information, location information, voice information, and image information and video information processed by AI at a set time period; when the wireless receiving device cannot receive the patient's information after exceeding the set time period, the wireless receiving device issues a wireless connection abnormality prompt message; the alarm prompt message also includes prompt information, early warning information, alarm information, emergency information, and may also include body posture information, physiological parameter information, voice information, etc. information and authorized image information and video information; the wireless receiving host and the wireless receiving slave can receive and display the alarm prompt information, which can also include but not limited to the patient's information, the patient's location corresponding to the location information, including but not limited to the room number and bed number, chair, floor, toilet, door, window, corridor, elevator door, public area location number; the wireless communication parameters are the radio communication parameters used for the two-way wireless communication, including but not limited to the radio working frequency band, radio working frequency point, radio communication bandwidth, radio communication modulation mode, wireless communication baud rate, wireless transmission power, wireless receiving sensitivity; the wireless communication parameters can be set and modified. ;
[0032] See also Figure 2 As shown, the wireless transmitting device also includes but is not limited to an input circuit, a microprocessor and a corresponding embedded program, an EEPROM storage unit, and a wireless transceiver circuit; the sensor body is connected to the input circuit, the microprocessor, and the wireless transceiver circuit in sequence; the EEPROM storage unit stores the factory information of the wireless intelligent sensor, including but not limited to the ID of the wireless transmitting device, the device category code, the device life code, and the patient ID received through the two-way wireless communication, the ID of the wireless receiving device, the alarm delay time parameter, the ID of the wirelessly connected wireless receiving device, the sensitivity parameter of the sensor body, the wireless communication parameter, and the power-on, power-off, and standby state control data; the control information data can be input, set, and modified through the wireless receiving device and transmitted to the wireless transmitting device through the two-way wireless communication, and stored in the EEPROM storage unit of the wireless transmitting device; see Figure 3As shown, when in the monitoring state, the microprocessor of the wireless intelligent sensor collects the signal of the sensor body through the input circuit, and analyzes and judges it through the embedded program; if the signal of the sensor body does not change, the monitoring continues; if the signal of the sensor body changes, the embedded program performs delay processing according to the alarm delay time parameter, and after the delay is completed, it is judged again whether the patient's body position has undergone a dangerous change. If the patient's body position has not undergone a dangerous change, the monitoring continues; if the patient's body position has undergone a dangerous change, the wireless transmitting device will send an alarm prompt information to the wireless receiving device to remind the nurse to go for care; the wireless receiving device can also play a prompt voice through the voice playing device to remind the patient not to leave the bed and wait for the nurse to come; the dangerous changes include but are not limited to the following situations of the patient: sitting on the edge of the bed and about to leave the bed, having left the bed, abnormal physiological state, falling down, a very painful expression, voice call for help, gesture call for help, leaving the limited position or area, and each situation can correspond to different categories of the alarm category information.
[0033] The sensor body of the wireless intelligent sensor for bed monitoring may also include but is not limited to one to more pressure sensing modules arranged at different positions of the bed; the wireless receiving device as a wireless receiving host may also forward the alarm prompt information to one to more wireless receiving devices as wireless receiving slaves, and the wireless receiving devices may also transmit information to each other including but not limited to the information that the nurse carrying the wireless receiving device has read the alarm prompt information, the information of responding to the alarm, the time information of arriving at the ward where the alarm occurs, the information of calling for support, the time information of alarm resetting, and the location information of the nurse; the alarm prompt information may also include prompts, warnings, alarms, alarm categories, and patient risk levels. data, location information of the alarm occurrence and patient information, and may also include but are not limited to the patient's photo, number, name, gender, age, main condition, ward number, bed number, doctor's order information, treatment plan information, nursing requirements information, and nursing plan list information; when the patient returns to the bed, the alarm of the wireless transmitting device can reset the alarm of the wireless intelligent sensing system; the alarm of the wireless intelligent sensing system can also be reset by the wireless receiving device; one to multiple wireless intelligent sensors can be wirelessly connected to one to multiple wireless receiving devices to form the wireless intelligent sensing system, and the wireless communication parameters include several initial wireless working frequency bands, including several initial wireless working frequency points, and the wireless intelligent sensing system The wireless transmitting device in the embodiment can be set to different initial wireless operating frequencies, and the initial wireless operating frequencies can be set by the two-way wireless communication; the wireless transmitting device and the wireless receiving device first use the initial wireless operating frequency to perform the two-way wireless communication; when radio interference occurs at the initial wireless operating frequency, causing the two-way wireless communication to fail to work properly, the wireless transmitting device and the wireless receiving device can both modify the initial wireless operating frequency at the same time according to a preset algorithm or protocol, and temporarily use any one of the wireless operating frequencies to perform the two-way wireless communication; when the radio interference at the initial wireless operating frequency disappears, the wireless transmitting device and the wireless receiving device can both At the same time, the initial wireless working frequency is restored to be used for the two-way wireless communication; the wireless receiving device monitors the two-way wireless communication through the corresponding embedded program, and automatically corrects the wireless communication anomaly; the monitoring of the two-way wireless communication includes comparing the information data sent by the wireless transmitting device with the information data received by the wireless receiving device, monitoring the information transmission delay time, monitoring the transmission rate, monitoring the bit error rate, monitoring the wireless communication channel, and monitoring the wireless signal field strength; the wireless communication anomaly includes but is not limited to the inconsistency between the information data received by the two-way wireless communication and the information data sent, and the information transmission delay time and the bit error rate are greater than the set value;The information transmission delay time is the difference between the time point value of the information data being sent and the time point value of the information data being received; the automatic correction process involves the embedded software, the dedicated software of the local server, and the dedicated software of the cloud server, and the algorithms in these software, including artificial intelligence algorithms, dynamically optimize and adjust the wireless communication parameters, and perform the two-way wireless communication again with the adjusted wireless communication parameters until the wireless communication anomaly disappears; the wireless signal field strength can also be monitored on the local server or cloud server, and the wireless communication anomaly can be monitored and analyzed, and optimization countermeasures can be found according to the actual wireless signal field strength and the radio interference situation, including optimizing and adjusting the wireless communication parameters of the wireless intelligent sensor system and the wireless communication parameters of the wireless intelligent sensor network system, and adjusting the installation positions of the wireless transmitting device and the wireless receiving device, as well as their respective antenna positions and directions through manual intervention, so as to improve the power density of the actual signal received by the antennas of both parties of the two-way wireless communication, thereby improving the gain value of radio transceiver, avoiding radio interference, and achieving the purpose of continuously optimizing the stability and reliability of the two-way wireless communication. ;
[0034] As shown in FIG5 , the wireless intelligent sensing system may further include a wireless power transmission device and a wireless power receiving device, wherein the wireless power receiving device is connected to the energy module, the energy module may include a battery or an energy storage capacitor, and the wireless power receiving device includes but is not limited to a power receiving antenna and a resonant circuit and a rectifier circuit connected thereto; the wireless power transmission device includes a power transmission antenna, which can radiate electromagnetic waves to form a specific power transmission space region in which the electromagnetic waves are distributed with sufficient power density vectors; when the power receiving antenna is located in the power transmission space region, the resonant induced electrical signal has sufficient output power; the center frequencies of the power receiving antenna, the resonant circuit, and the power transmission antenna are consistent, the power receiving antenna can sense and receive the electromagnetic waves, and resonate with the resonant circuit to generate resonant induced alternating current, and power the wireless transmitting device and the wireless receiving device or charge the energy module through the rectifier circuit and the energy module; wherein the power transmission antenna and the power receiving antenna can be spaced one meter apart from each other. Within a certain spatial distance range, non-contact spatial energy transmission is achieved with air as the transmission medium, and the electromagnetic wave is used as a carrier to provide power supply to the energy module through the power receiving antenna and the resonant circuit; the wireless power transmission device may include a directional power transmission antenna, which can radiate an electromagnetic wave beam with sufficient power density vector in a spatial area in the direction of the directional power transmission antenna; it may also include multiple power transmission antennas, which can be installed in multiple positions respectively; multiple directional power transmission antennas can radiate multiple electromagnetic wave beams to form wireless power supply space areas covered by multiple electromagnetic wave beams with sufficient power density vectors, and these wireless power supply spaces can overlap or be independent of each other; wherein the output power of the wireless power transmission device can be automatically adjusted according to the output current of the resonant induction alternating current; when the output power of the resonant induction alternating current is relatively small, the output power of the wireless power transmission device is correspondingly reduced; when the output power of the resonant induction alternating current is relatively large, the output power of the wireless power transmission device is correspondingly increased.
[0035] Its further technical solution is that, when in a non-pairing state, the wireless transceiver circuit of the wireless transmitting device can be in an off state or a standby state, and the wireless transceiver circuit of the wireless receiving device can be in an on state or an intermittent on state. After receiving the wireless pairing signal, the wireless transceiver circuit of the wireless transmitting device enters the on state and transmits the wireless pairing signal, and the wireless receiving device enters the pairing state, and its wireless transceiver circuit can be in an on state or an intermittent on state; the pairing sensor includes but is not limited to the magnetic field sensing sensor, light sensing sensor, electromagnetic induction sensor, electric field sensing sensor, capacitive sensing sensor, sound wave sensing sensor, and mechanical touch switch sensor. The pairing signal field generator includes but is not limited to a magnetic field generator, a light wave field generator, an electromagnetic field generator, and an electric field generator; when the pairing sensor and the pairing signal field generator are close to each other, the pairing sensor can detect the signal field generated by the pairing signal field generator, including but not limited to a magnetic field, a light wave field, an electromagnetic field, an electric field, and an acoustic wave field, or detect a change in capacitance, and a mechanical touch switch sensor can be touched and trigger a change in its switch state; the alarm prompt information may also include but is not limited to the energy module being in an undervoltage state where the voltage is too low, the service life of the wireless intelligent sensor is approaching or has ended, and the wireless communication is abnormal; when the wireless transmitting device, the When the pairing sensor of the wireless receiving device can respectively detect the signal field generated by the approaching pairing signal field generator, the wireless transmitting device and the wireless receiving device can be triggered to enter the pairing state respectively; wherein the pairing sensor can be the magnetic field sensing sensor, when the wireless receiving device and the magnetic field sensing sensor of the wireless receiving device are close to each other, the wireless transmitting device and the wireless receiving device can be triggered to enter the pairing state respectively; the wireless intelligent sensor can also be connected to a camera and a microphone, and the camera can provide an image signal of the patient, and the dangerous state can be identified by the image recognition function contained in the embedded program; The microphone can provide the patient's voice signal, and the dangerous state can be identified by the voice recognition function contained in the embedded program; the device category code corresponds to a plurality of different categories of the wireless intelligent sensors and different installation locations, including but not limited to fall risk monitoring sensors, physiological parameter risk monitoring sensors, infusion monitoring sensors, ventilator monitoring sensors, monitor monitoring sensors, emergency call sensors, AI visual risk monitoring sensors, and the different installation locations include beds, chairs, wheelchairs, toilets, doors, and windows; the location information of the device includes the installation location and actual location of the wireless transmitter and the wireless receiver, which corresponds to the location of the monitored patient;The patient ID, the equipment category code data, the alarm delay time data, and the patient risk level data can be set and modified through the operating device of the wireless receiving device, or can be set and modified through a dedicated wireless programmer and dedicated programming software including a dedicated mobile phone APP or dedicated PC programming software, directly written into the wireless transmitting device through a connecting cable, or sent to the wireless transmitting device through the two-way wireless communication; the equipment life code can correspond to the design life data of the wireless intelligent sensor or the wireless transmitting device. ;
[0036] See also Figure 6 As shown, the microprocessor of the wireless transmitting device and the wireless receiving device can also be connected to their own electromagnetic induction transceiver circuits, including a carrier frequency alternating current signal generator, a modulation circuit, a demodulation circuit, an energy conversion circuit, and an electromagnetic induction antenna connected in sequence; the modulation circuit of the sender can modulate the data to be sent by the microprocessor to the carrier frequency alternating current signal output by the carrier frequency alternating current generator, and transmit the modulated electromagnetic wave through the electromagnetic induction antenna; the electromagnetic induction antenna of the receiver can receive the modulated electromagnetic wave, and can restore the data sent by the sender through the demodulation circuit and input it into the microprocessor of the receiver; the wireless transmitting device and the wireless receiving device can be the sender and the receiver, or the receiver and the sender, respectively; in the same wireless communication signal coverage area, the wireless communication parameters can be set by the wireless receiving device, so that the radio working frequency bands of the wireless transmitting devices of multiple wireless intelligent sensor systems are different from each other, thereby avoiding wireless interference between each other and ensuring the stability and reliability of wireless communication. Reliability; the wireless intelligent sensing system may also include one or more wireless locators, and may be installed in multiple different installation locations inside hospitals and nursing homes; the wireless locator includes an energy module, a wireless transceiver circuit, and a directional antenna, which can continuously or intermittently and periodically radiate a wireless positioning signal with a certain power density vector in a spatial area in the direction of the directional antenna, including but not limited to the ID code of the wireless locator, and the ID code of the wireless locator corresponds to the installation location; the wireless intelligent sensing system may also include one or more wireless positioning tag transmitters, which can perform two-way wireless communication with the wireless locator, receive the wireless positioning signal, and send the unique ID code of the wireless positioning tag transmitter; the wireless positioning tag transmitter includes a wireless transceiver circuit, which can continuously or periodically transmit a wireless communication signal, including but not limited to the unique ID code of the wireless positioning tag transmitter, and can perform two-way wireless communication with the wireless locator, receive the wireless positioning signal, and send the unique ID code of the wireless positioning tag transmitter.
[0037] See also Figure 7 As shown, the wireless positioning tag transmitter includes a microprocessor and corresponding embedded software, which can send the wireless contact signal and receive the wireless positioning signal, and can dynamically adjust the receiving sensitivity of the wireless transceiver circuit of the wireless positioning tag transmitter through the embedded software; when the wireless positioning tag transmitter enters a spatial area in the pointing direction of the directional antenna, if more than one wireless positioning signal can be received at the same time, the receiving sensitivity of the wireless transceiver circuit of the wireless positioning tag transmitter is continuously reduced until only the wireless positioning signal of the unique wireless locator can be received, and the installation position of the wireless locator is used as the position of the wireless positioning tag transmitter; the wireless positioning tag transmitter can obtain the ID code and corresponding installation position information of the wireless locator by performing the wireless communication with the wireless locator, thereby obtaining the information of the location of the wireless positioning tag transmitter; the wireless locator closest to the location can also be connected to the wireless locator by communicating with the wireless locator The wireless positioning tag transmitter obtains the location information of the wireless positioning tag transmitter through wireless communication between the wireless positioning tag transmitter and the wireless positioning tag transmitter; the wireless positioning tag transmitter can be installed on a movable monitored person, or on a movable medical device or material. The wireless transmitting device and the wireless receiving device can also include the wireless positioning tag transmitter, through which the current location information of the wireless positioning tag transmitter can be obtained, and the location information is provided to the nurse on the wireless receiving device through the two-way communication, so that the nurse can quickly find their location; the wireless positioning tag transmitter also includes the energy module, when entering a space area covered by the electromagnetic wave near the wireless transmission antenna, the power receiving coil of the energy module can sense and receive electromagnetic waves with sufficient energy, and convert the energy of the received electromagnetic waves into electrical energy through the energy conversion circuit, and supply it to the wireless positioning tag transmitter; it can also trigger the wireless positioning tag transmitter and the wireless locator to enter the two-way wireless communication state; see Figure 8 As shown, when used for monitoring in a ward, one of the wireless receiving devices can be wirelessly connected to one or more wireless intelligent sensors, and can also be wirelessly connected to one or more wireless receiving devices; A represents the first wireless intelligent sensor, B represents the second wireless intelligent sensor, C represents the third wireless intelligent sensor, and D represents the fourth wireless intelligent sensor. The wireless receiving device and each wireless intelligent sensor are all arranged in the ward.
[0038] The working state corresponding to the working state control data includes but is not limited to the power-on state, the power-off state, the standby state, the monitoring state, the suspended monitoring state, and the alarm reset state; the operating device of the wireless receiving device can control the wireless intelligent sensor to enter the suspended state, and the two-way wireless communication is temporarily stopped, and can also exit the suspended state, and the two-way wireless communication is restored; the alarm delay time data can be set and modified through the wireless receiving device, and the alarm delay time data can be adaptively optimized and adjusted through the embedded software according to the statistics of false alarms caused by the behavioral characteristics of individual patients, thereby effectively reducing the probability of false alarms; the wireless receiving device also includes an operation locking device, a data download device, and a data download device. The wireless nurse information terminal corresponds to the wireless receiving device and can display whether the patient is in bed, leaving the bed, or has left the bed. The terminal can also include a liquid crystal display or an ink screen to display alarm information, as well as the patient's position in bed and the patient's posture. If the patient remains in the same posture in bed and does not turn over for a set period of time, a prompt signal will be issued to remind the nurse to assist the patient in turning over.
[0039] Its further technical solution is that the wireless intelligent pressure sensor is packaged as a complete whole, which can be a completely sealed whole, including an airbag for accommodating the air in the pressure sensor body, and a ventilation channel between the airbag and the sensor body. When the patient's body is pressed on the pressure sensor body, the air in the pressure sensor body can be transported to the inside of the airbag through the ventilation channel; the complete whole can also be a non-sealed whole with an external ventilation hole; the bottom skin layer can be a material with anti-slip characteristics, which can prevent the wireless intelligent pressure sensor from sliding on the contact surface in use; a layer of elastic buffer material that can buffer the impact force can also be arranged between the upper skin layer of the pressure sensor body and the pressure sensor body, and the elastic buffer material layer can fully absorb the impact force caused by the patient falling from the bed, thereby greatly reducing the damage to the body caused by the impact force; see Figure 4As shown, the wireless receiving devices of the multiple wireless intelligent sensor systems can also be wirelessly connected to one of the multiple wireless receiving devices to form a wireless intelligent sensor network system; the wireless receiving device also includes a microprocessor and a corresponding embedded program, an EEPROM storage unit, a wireless transceiver circuit, and a display unit that can include but is not limited to an ink screen display, a liquid crystal display, and an LED indicator; the operating device includes but is not limited to a touch screen, a keyboard, and a switch, and the input and output interface device includes a voice input device, a video input device, an audible and visual alarm device, a voice playback device, a voice recognition device, an image recognition device, a behavior recognition device, a body posture recognition device, a gesture recognition device, a facial expression recognition device, and a facial feature recognition device; When it is monitored that the wireless communication is in an abnormal state, and the abnormal state of the wireless communication still persists after the automatic correction, the wireless receiving device sends a wireless communication abnormality prompt message to remind the nurse to check whether the wireless intelligent sensor is accidentally moved from the original installation position to another place, and to check and eliminate other usage problems or hardware failures; the wireless receiving device also monitors the wireless signal field strength. When it is monitored that the wireless signal field strength is lower than the minimum wireless signal field strength allowed for normal wireless communication, the wireless receiving device sends a prompt message that the wireless communication signal is too weak, to remind the nurse to check whether the wireless intelligent sensor is accidentally moved from the original installation position to another place.
[0040] The display unit of the wireless receiving device can display the working status of the wireless intelligent sensor, including but not limited to shutdown, startup, standby, monitoring, monitoring pause, alarm reset, energy module undervoltage, sensor life is about to end, sensor life has ended, sensor failure, and can also display the alarm information and prompt information including but not limited to the patient is leaving the bed, the patient has been out of bed for too long, assisting the patient to turn over, and the patient has urinated and defecated. The working status also includes wireless communication abnormality, wireless communication signal is too weak, and the sensor installation position has been moved; the alarm information includes the patient risk level data and the equipment category coding data, wherein the alarm delay time data and the patient risk level data can be The medical staff evaluates the patient's condition and physical state and determines appropriate data; the device category coding data corresponds to the number of the room where the wireless intelligent sensor is installed and the installation location in the room, respectively, and the installation location in the room includes but is not limited to a bed, a chair, the floor, and a toilet; the device category coding data corresponds to the type of device and also corresponds to the installation location of the wireless transmitter in the room; the working status of the wireless receiving device can also be displayed, including but not limited to shutdown, startup, standby, monitoring, pause monitoring, alarm reset, energy module undervoltage, device failure, cable connection abnormality, and the wireless communication parameters, and the patient's information can also be displayed, including but not limited to the patient's room number , bed number, gender, age, name, photo, disease, medication information, nursing information, doctor's advice information; it can also display abnormal wireless communication prompt information; the wireless receiving device can also be connected to a camera and a microphone, and video calls, video monitoring, and two-way voice calls can be made through the display unit; the EEPROM storage unit of the wireless receiving device can also store voice data for playback, including but not limited to alarm voice data for reminding nursing staff, prompt voice data, and voice data for reminding patients; the EEPROM storage unit of the wireless receiving device can also store records of information data corresponding to the wireless intelligent sensor and historical events that have occurred in the wireless receiving device, including The information data records corresponding to the events that have occurred and the time data records of the events that occurred; the parameter data including but not limited to the alarm delay time data, working state control data, and transmission power data, receiving sensitivity data, radio working frequency band data, and radio working frequency point data can be set and modified through the wireless receiving device, so as to realize the control of the wireless transceiver circuit, including but not limited to the control of the radio working frequency band, the control of the radio working frequency point, the control of the transmission power, the control of the receiving sensitivity, and the control of the power on and off of the wireless transceiver circuit; the working state control data includes but is not limited to the shutdown state, the power on state, the standby state, the monitoring state, the pause monitoring state, and the alarm reset state;By setting and modifying the working state control data operation, the wireless transmitting device and the wireless receiving device can be controlled to enter various working states, including but not limited to the shutdown state, the startup state, the standby state, the monitoring state, and the pause monitoring state; the appropriate alarm delay time parameters can also be set through the setting and modification to eliminate false alarms caused by the patient turning over or moving. ;
[0041] Its further technical solution is that the wireless transmitting device and the sensor body can be integrated or two independent bodies, and the two can be connected by a connector; the energy module and the wireless power receiving device can be integrated or two independent bodies, and the two can be connected by a connector; the multiple wireless power supply space areas are distributed in multiple space areas that need electricity in the building, including but not limited to corridors, rooms, and public areas, and can provide power supply for the wireless transmitting device and the wireless receiving device in these space areas, wherein the wireless power supply device and the wireless power transmission antenna can be installed on but not limited to the ceiling, the ground, the carpet, the wall , beds, chairs, toilets, bedside tables, door frames and other facilities, including the interior, exterior and surrounding locations, and mattresses, chair cushions; wherein the energy module is located in the wireless power supply space area or the charging space area of the wireless power transmission antenna; it can also be installed in a portable wireless power supply device, and can provide power to multiple wireless power supply devices through an AC power line to provide power to the energy module in a concealed manner; it can also provide power through power generation devices including but not limited to solar energy, wind energy, chemical energy, geothermal energy, etc.; it can also provide power to multiple wireless power supply devices including the portable wireless power supply device through a large-capacity rechargeable battery pack. The large-capacity rechargeable battery pack can be installed on the portable wireless power supply device, and can be a removable and replaceable rechargeable battery pack. When the output voltage of the rechargeable battery pack is too low due to power consumption, it can be recharged at a dedicated charging station; the energy module can include a non-rechargeable battery, a rechargeable battery, or a large-capacity capacitor; the energy module can be integrated with the wireless transmitting device and the wireless receiving device, or it can be separated; the energy module can also be used as a wireless power adapter to provide power supply including power supply and charging for devices including mobile phones, tablets, mobile medical devices, and equipment; the voice playback device also includes The device comprises a voice input circuit, a voice download interface, a voice conversion circuit, a voice data storage device, a speaker, and a driving circuit. The reminder voice to be recorded can be input through the voice input circuit, including inputting voice through a microphone and converting it into voice data through the voice conversion circuit and storing it in the voice data storage device; the reminder voice of the patient's relatives can also be recorded through a mobile phone APP and a reminder voice data file can be generated, and the reminder voice data file can be downloaded to the voice data storage device of the voice playback device through the mobile phone and the voice download interface; the voice playback device and the wireless receiving device can be interconnected and integrated, or they can be two independent entities connected to each other wirelessly.
[0042] See also Fig.14As shown, the two-way wireless communication between the wireless transmitting device and the wireless receiving device includes several optional radio working frequency bands and several optional wireless frequency points; the wireless receiving device can use several different wireless frequency points to perform the two-way wireless communication with multiple wireless transmitting devices, and can also perform the two-way wireless communication with multiple wireless receiving devices; each of the wireless transmitting devices in the multiple wireless transmitting devices can use a unique initial working frequency point to perform the wireless communication with the wireless receiving device; the wireless receiving device can perform the two-way wireless communication by adjusting its own radio working frequency band and the working frequency point to be consistent with the unique initial radio working frequency band and the unique initial working frequency point of any of the wireless transmitting devices; the initial radio working frequency band and the initial working frequency point of the wireless transmitting device can be set or modified by the wireless receiving device; each of the wireless transmitting devices in the wireless intelligent sensing system can be set at different initial wireless frequency points to perform the wireless communication with the wireless receiving device; in a wireless communication signal coverage area, multiple wireless intelligent sensing systems can be set to different initial radio working frequency bands to perform the two-way wireless communication; when wireless communication interference occurs at the initial wireless frequency point, the wireless receiving device can temporarily modify The wireless transmitting device and the wireless receiving device perform the wireless communication from an initial working frequency point to a temporary working frequency point, and the temporary working frequency point is different from the initial working frequency point; when the wireless communication interference caused by the initial wireless frequency point disappears, the temporary working frequency point can be modified by the wireless receiving device to return to the initial working frequency point for the two-way wireless communication; the setting and modification operations are performed by operating the input devices of the wireless transmitting device and the wireless receiving device, including but not limited to switches, buttons, keyboards, display devices, voice input devices, and remote control devices to set and modify data and store them in the EEPROM storage unit; the wireless receiving device The device can automatically record information data of historical events that have occurred in the wireless intelligent sensor and the wireless receiving device to the EEPROM storage unit of the wireless receiving device, and can display the information data of the event including the time of the event and the information data of the event through the display unit; wherein the events that have occurred in the wireless intelligent sensor include but are not limited to initial activation, pairing, unpairing, location, power on, standby, monitoring, imminent leaving bed warning, leaving bed alarm, physiological parameter abnormal alarm, emergency call alarm, alarm reset, body posture and body posture change, call for help, undervoltage of the energy module, imminent end of sensor life, and end of sensor life;The events that have occurred on the wireless receiving device include but are not limited to initial activation, pairing, unpairing, location, power on, standby, monitoring, equipment failure, early warning, alarm, alarm reset, energy module undervoltage, and all operation records of the nursing staff on the wireless receiving device, including but not limited to the operation of the operating device, reading information, location, responding to alarms, arriving at the ward, resetting alarms, calling for assistance, arrival of assistance personnel at the ward, the number of the nurse who responded to the alarm, and the number of the assistance personnel; the settings and modifications can also be performed through input devices including but not limited to computers, cloud computers, local servers, tablet computers, and mobile phones to generate data, and the two-way wireless communication can be used to transmit the settings and modifications to the wireless receiving device. The generated data is transmitted to the wireless intelligent sensor, the wireless receiving device, and the EEPROM storage unit; it can also be transmitted to the EEPROM storage unit through the data download interface to implement the setting and modification operations; the patient can make video calls and two-way voice calls with the nurse outside the ward through the wireless receiving device in the ward, and can also make video calls and two-way voice calls with relatives and friends outside the hospital through the camera of the wireless receiving device connected to the cloud computer and the microphone; the accompanying personnel can also conduct remote video monitoring through the local server, the camera of the wireless receiving device connected to the cloud computer, and the microphone. ;
[0043] Its further technical solution is that the wireless intelligent pressure sensor includes a pressure sensor body, the wireless transmitting device, and the wireless receiving device, forming a wireless intelligent pressure sensing system; the wireless intelligent pressure sensor includes at least one pressure sensing module, and when used to monitor patients on a hospital bed, it can include multiple pressure sensing modules, and they are distributed at multiple different positions of the wireless intelligent pressure sensor, corresponding to multiple position areas of the hospital bed respectively, and can detect the pressure distribution of the human body in multiple position areas of the hospital bed, and thereby determine the position of the human body on the bed and the position change status, and can determine whether the patient sits up from the bed, sits on the edge of the bed, has a tendency to leave the bed, or has already left the bed; in use, when the embedded program of the wireless transmitting device determines that the human body position has changed, after the embedded program of the wireless transmitting device executes a delay according to the alarm delay time parameter and then judges again, if it is determined that the human body position has a tendency to leave the bed or has already left the bed, then the wireless The wireless transmitting device enters a warning state or an alarm state respectively, and transmits a warning prompt signal or an alarm prompt signal to the wireless receiving device respectively, to remind the nursing staff that the patient is about to leave the bed, or has gotten out of bed or fallen off the bed; when the patient returns to the bed and sits down, the alarm state of the wireless transmitting device can be reset, and a prompt signal is transmitted to the wireless receiving device at the same time, to remind the nursing staff that the patient has returned to the bed; when the wireless intelligent pressure sensor is used for bed monitoring, the sensor body may include a plurality of independent pressure sensing units, which can be distributed on the bed in an m×n matrix to form a wireless intelligent pressure sensor with a warning function, wherein a part of the pressure sensing units are distributed in the central area of the bed to form a central pressure sensing area; another part of the pressure sensing units are distributed in the edge areas on both sides of the bed to form an edge pressure sensing area; the edge area is distributed along the two edges of the bed, and may include a plurality of pressure sensing units, which are distributed in sequence from the central area of the bed to the edge of the bed.
[0044] The sensing area of the wireless intelligent pressure sensor with early warning function can be larger than the range of the bed; when installed on beds of different sizes, the position and coverage of the edge pressure sensing area can be set or adjusted through the wireless receiving device according to the actual position of the bed edge, so that it is aligned with the edge area of the bed, ensuring that the patient's activities within the normal activity range of the bed will not accidentally trigger the edge pressure sensing area, avoiding false alarms; wherein the sensing sensitivity of the pressure sensing unit in the edge pressure sensing area is lower than the sensing sensitivity of the pressure sensing unit in the central pressure sensing area, so that when the patient's limbs touch the edge pressure sensing area, the pressure is not enough to trigger the pressure sensing unit in the edge pressure sensing area, and the pressure sensing unit in the edge pressure sensing area will be triggered only when and only when the patient's body sits on the edge pressure sensing area; the microprocessor The device collects signals from multiple pressure sensing units through the input circuit, and analyzes and judges through the embedded program corresponding to the microprocessor, thereby judging the body position and changes in the body position of the human body, and can also judge that the body position has moved from the middle area to the edge area of the bed, and can also judge the sleeping posture of the human body and changes in the sleeping posture; when the patient's body moves from the middle position of the bed to the edge position of the bed, the wireless transmitting device transmits an early warning prompt signal to the wireless receiving device to remind the nurse that the patient may get up and leave the bed immediately, and decide whether to arrive at the ward for care as soon as possible according to the patient's fall risk level; if the patient's body further leaves the edge position of the bed, the wireless transmitting device transmits an alarm prompt signal to the wireless receiving device to remind the nurse that the patient has left the bed, and decide whether to arrive at the ward for care immediately according to the patient's fall risk level.
[0045] A further technical solution is that the wireless intelligent sensing system can detect the pressure distribution of multiple positions of the human body on the bed, and the embedded program of the wireless transmitting device can analyze and judge the signals of the multiple pressure sensing modules, and can also judge the sleeping position of the human body on the bed and the change of sleeping position; see Fig. 9 As shown, the embedded programs of the wireless transmitting device and the wireless receiving device also include a preset turning over time period. If the sleeping position of the human body on the bed does not change within the preset turning over time period, the wireless transmitting device sends a turning over nursing prompt signal to the wireless receiving device to prompt the nursing staff to help the patient turn over; the preset turning over time period is set to 1 hour to 2.5 hours according to the physical condition of the nursing object; the wireless receiving device refers to Fig.10As shown, the wireless transmitting device sends a timed communication wireless signal containing the body position and sleeping posture information of the human body to the wireless receiving device at a fixed time period, and the fixed time period is no more than 15 minutes; if the wireless receiving device does not receive the wireless signal containing the body position and sleeping posture information of the human body after the fixed time period ends, the wireless receiving device will send a command requesting wireless communication to the wireless transmitting device, requesting the wireless transmitting device to resend the timed communication wireless signal; if the wireless receiving device still fails to successfully receive the timed communication wireless signal resent by the wireless transmitting device after a delay of a specific time period, the wireless receiving device displays a communication fault prompt message through the display unit, prompting the nursing staff to check whether the wireless intelligent sensor is taken out of the wireless receiving range or fails, and further process it; the time of the specific time period can meet the requirements of the wireless transmitting device. The time required for the wireless transmitter to resend the timed communication wireless signal; after the wireless receiving device is turned on, its wireless transceiver circuit is always in the turned-on state or intermittently turned-on state, and can receive the wireless pairing signal of the wireless transmitting device; the wireless transceiver circuit can also be put into the turned-on state or intermittently turned-on state by operating the pairing button of the wireless receiver; when it is necessary to replace the old wireless transmitting device with a new one to replace the old one that has been wirelessly connected to the wireless receiving device, if the two have the same device category code, the wireless receiving device can automatically cancel the wireless connection with the old wireless transmitting device, and establish the wireless connection with the new wireless transmitting device at the same time, and there is no need to perform a separate unpairing operation process on the old wireless transmitting device.
[0046] Its further technical solution is that the wireless receiving device also includes a display unit, including but not limited to an ink screen display, a liquid crystal display, and an LED indicator, which can display the state of the monitored object detected by one or more wireless intelligent sensors, including but not limited to the body position, sleeping position, physiological parameters, physiological parameters, alarm information, and prompt information of the human body; the wireless receiving device also includes an operating device, including but not limited to a control switch and a control button, which is used for parameter setting and working state control; the wireless receiving device also includes an input and output interface device, including but not limited to a voice input device, a video input device, an audible and visual alarm device, a voice playback device, a voice recognition device, an image recognition device, a behavior recognition device, a body posture recognition device, a gesture recognition device, a facial expression recognition device, and a facial feature recognition device; when the state of the wireless intelligent sensor system is in a warning state or an alarm state, the audible and visual alarm device is used to remind the nursing staff to go and handle it; the warning state or the alarm state includes but is not limited to the state of the monitored object being in an abnormal state or a state that may be dangerous, and also includes but is not limited to the energy module being in an undervoltage state where the voltage is too low, the service life of the wireless intelligent sensor is approaching the end or has ended, and the wireless communication is abnormal; the voice playback device also includes a voice input circuit, a voice download interface, a voice conversion circuit, a voice data The memory, speaker, and driving circuit can input the reminder voice to be recorded through the voice input circuit, including inputting voice with a microphone and converting it into voice data through a voice conversion circuit and storing it in the voice data memory; the reminder voice of the patient's relatives can also be recorded through a mobile phone APP and a reminder voice data file can be generated, and the reminder voice data file can be downloaded to the voice data memory of the voice playback device through the mobile phone and the voice download interface; the voice playback device and the wireless receiving device can be interconnected and integrated, or they can be two independent entities interconnected by wireless; the voice recognition device can recognize the patient's call voice or emergency call The gesture recognition device can recognize and determine the patient's calling intention or emergency call intention through the patient's gestures; the facial expression recognition device can recognize and determine the patient's emergency call intention through the patient's facial expressions; the image recognition device, the action recognition device, and the body posture recognition device can recognize the patient's dangerous behavior, including but not limited to leaving the bed, chair, wheelchair, toilet, and ward without an escort, and also include the patient falling; the facial feature recognition device can recognize the patient's facial features, when the patient leaves the ward door or passage door alone without an escort;When the patient's calling intention or emergency calling intention is determined or the patient's dangerous behavior or risky behavior is identified, the wireless receiving device will send an alarm or prompt information to other wireless receiving devices, including the wireless information receiving device carried by the nurse and the wireless central monitor, to remind the nurse to go to the nursing. ;
[0047] Its further technical solution is that the wireless intelligent pressure sensor can be placed horizontally on the installation plane, the wireless transmitting device includes a circuit board and a load-bearing shell, the circuit board, the paired sensor and the energy module are all arranged in the cavity of the load-bearing shell, the load-bearing shell is also connected to the load-bearing column, and the manufacturing process of the load-bearing shell includes but is not limited to injection molding process, vacuum forming process, glue injection potting process, or a combination of these processes; see Fig.11 as well as Fig.12 As shown, the upper load-bearing surface of the load-bearing shell is higher than the surface of the circuit board and the paired sensor relative to the plane for installing the sensor; the load-bearing shell also includes annular raised load-bearing support ribs distributed around the periphery of the energy module; wherein the upper load-bearing surface of the annular raised load-bearing support ribs is higher than the surface of the energy module relative to the ground; when external force acts on the load-bearing shell, the external force is transmitted in the order of the load-bearing shell, the load-bearing column, and the plane for installing the sensor, and the load-bearing column ensures that the internal space of the cavity is not affected by the external force between the load-bearing shell and the plane for installing the sensor, thereby preventing the circuit board or the paired sensor or the energy module from being damaged due to the external force; when external force acts on the annular raised load-bearing support ribs, the annular raised load-bearing support ribs ensure that the internal space of the cavity is not affected by the external force, thereby preventing the energy module from being damaged due to the external force.
[0048] A further technical solution is that the intelligent sensing method is used in the wireless intelligent sensing system as described in the above embodiment, a wireless receiving circuit is provided inside the wireless receiving device of the wireless intelligent sensing system, and the intelligent sensing method includes:
[0049] S101: Determine, according to the signal field strength detected by the pairing sensor, whether the distance between the first pairing area and the second pairing area is less than a preset distance threshold.
[0050] S102: If the distance between the first pairing area and the second pairing area is less than a preset distance threshold, the pairing sensor senses the signal field generated by the pairing signal field generator.
[0051] S103: If the distance between the first pairing area and the second pairing area is greater than or equal to a preset distance threshold, the wireless transmitting device is in a non-pairing state, does not transmit a wireless pairing signal, and waits for a preset time.
[0052] S104, if after waiting for a preset time, the distance between the first pairing area and the second pairing area meets the condition described in S102, that is, the distance between the first pairing area and the second pairing area is less than a preset distance threshold, the wireless transmitting device is in a pairing state and transmits a wireless pairing signal.
[0053] Among them, when the pairing area of the wireless transmitting device and the pairing area of the wireless receiving device are close to each other, that is, the distance between the two is less than the preset distance threshold, the distance between the pairing sensor of the wireless transmitting device and the pairing signal field generator of the wireless receiving device is reduced to a distance that can sense the signal field, and the wireless transmitting device enters the pairing state; the wireless receiving device can be connected to the wireless gateway, the wireless gateway is connected to the wireless local area network and the local server, and can also be connected to the cloud computer and server through a router; the nursing staff's mobile phone, tablet, and computer are connected to the wireless local area network.
[0054] In the above scheme, the state of the monitored object detected by the wireless intelligent sensor includes but is not limited to body posture information, body position information, and working status information of the wireless intelligent sensor, which are all transmitted to the wireless receiving device through the wireless transmitting device, and the wireless receiving device receives the information and realizes information synchronization; the working status information of the wireless intelligent sensor includes but is not limited to whether the wireless communication of the wireless intelligent sensing system is in a normal working state information, and whether the wireless intelligent sensor is in a normal working state information; further, the wireless receiving device can also transmit parameter setting information and / or control information to the wireless transmitting device, and the wireless transmitting device receives the information, and realizes the parameter setting and working state control of the wireless intelligent sensing system through the control circuit, and the parameter setting information includes but is not limited to the sensing sensitivity of the sensor body, the alarm delay time data, and the radio communication parameters; wherein, the monitored object refers to an object that needs wireless intelligent sensor detection information, which can be an elderly person or a patient.
[0055] In the prior art, only when the elderly or patients leave the monitoring area (for example, leave the bed, chair, toilet, etc.), an alarm will be sounded to notify the nursing staff to go to the nursing area for care; the solution described in this application, based on the prior art, will also send the elderly or patients' body posture information to the nursing staff receiving terminal in a timely manner, and its technical effects include:
[0056] First, the nursing staff can monitor the patient's / elder's body posture in real time through the wireless receiving device without going to the room, and then judge the patient's / elder's behavior and behavior trend; when the patient's / elder's body posture shows a behavioral trend of leaving the bed, such as getting up from a supine position and moving the body to the edge of the bed, the situation is promptly notified to the nursing staff through the wireless receiving device to pay attention to the change of the situation in time, and prepare for a quick response in advance according to the patient's danger level data. For patients with higher danger level data, they can go to the ward for care immediately, and for patients with lower danger level data, they can wait until the patient leaves the bed before going to the ward for care. The patient's sleeping position can also be monitored by sensors located at multiple different positions on the bed of the wireless intelligent sensor, including supine state, left side state, and right side state. In particular, when the elderly do not turn over or move for a long time, they should go to check whether the elderly have an accident or need to help the elderly or patients turn over and change their positions to avoid a certain part of the body being compressed for too long, which can prevent the occurrence of bedsores.
[0057] Second, the wireless intelligent sensor system has the function of equipment self-checking. The working status information of the wireless intelligent sensor comes from the system self-checking of the wireless intelligent sensor. This information can promptly notify the nursing staff when a failure occurs in the wireless intelligent sensor system, including a wireless communication failure, to arrange maintenance and troubleshoot the failure, thereby avoiding accidents to the elderly or patients due to equipment failure.
[0058] In the above scheme, the signal of the sensor body is input to the microprocessor of the wireless transmitting device, and the software of the microprocessor is used to analyze and determine whether the state of the monitored elderly / patient has undergone abnormal changes. If the abnormal change has occurred or the body posture of the elderly / patient has not changed for more than a fixed time period, the wireless transmitting device will use the set radio working frequency band and working frequency to send the state information of the monitored elderly / patient to the wireless receiving device, and the wireless receiving device will use the same radio working frequency band and working frequency as the wireless transmitting device to receive the wireless signal transmitted by the wireless transmitting device; wherein the body posture of the elderly / patient has not changed for more than the fixed time period, indicating that the wireless intelligent sensor has failed or the elderly / patient may have an abnormal condition, and further inspection of the function of the wireless intelligent sensor and the condition of the elderly / patient is required, retesting the wireless intelligent sensor, and assisting the elderly / patient to turn over to prevent bedsores; the fixed time period value needs to be determined according to the condition and physical condition of the elderly / patient, not more than 150 minutes, preferably 15 minutes; if no abnormal change occurs, the wireless device continues to monitor.
[0059] Furthermore, the wireless receiving device will also send the received status information of the monitored elderly / patient back to the wireless transmitting device, and the wireless transmitting device will compare whether the received status information of the monitored elderly / patient is consistent with the information sent by the wireless transmitting device using the set radio working frequency band and working frequency to the wireless receiving device. If they are inconsistent, the wireless transmitting device will use different radio working frequency bands and different working frequencies to send the status information of the monitored elderly / patient to the wireless receiving device. If they are consistent, the wireless transmitting device and the wireless receiving device continue to monitor; if they are inconsistent, the wireless transmitting device will repeat this process again; if the wireless receiving device does not receive the status information of the monitored elderly / patient after exceeding the fixed time period, it will send a wireless communication test signal to the wireless transmitting device. If the signal of the wireless transmitting device is not received within a specific time period, the wireless receiving device will send a prompt message of wireless communication failure, reminding the nurse to check whether the position of the wireless transmitting device being moved is beyond the range of the wireless signal, or there is a fault in the wireless device that requires further inspection by maintenance personnel; the value of the specific time period is greater than.
[0060] The status of the monitored elderly person / patient includes but is not limited to body position, behavioral state, body posture, voice, facial expression, and physiological parameters; the abnormal changes include but are not limited to the following situations: first, entering the set area; second, leaving the set area; third, calling for help with voice; fourth, a fall has occurred; fifth, a painful expression appears on the face; sixth, abnormal changes occur in physiological parameters.
[0061] The parameter settings of the wireless intelligent sensing system include but are not limited to the sensing sensitivity settings, sensing area settings, sensing area range settings, and sensing area position settings of the wireless intelligent sensing system, and also include the wireless communication parameter settings of the wireless transmitting device, including but not limited to the radio working frequency band and working frequency point used by the wireless receiving device and the wireless transmitting device, and the pairing frequency band and pairing frequency point of the pairing radio signal used by the wireless transmitting device and the wireless receiving device in the wireless pairing process; further, the pairing frequency band and pairing frequency point of the pairing radio signal are different from the radio working frequency band and working frequency point; further, the working state control includes but is not limited to the power-on control, power-off control, and standby control of the wireless intelligent sensing system.
[0062] Its further technical solution is that the intelligent sensing method also includes: the first step, judging whether the distance between the first pairing area and the second pairing area is less than a preset distance threshold according to the signal field strength detected by the pairing sensor. The second step, if the distance between the first pairing area and the second pairing area is less than the preset distance threshold, the pairing sensor senses the signal field generated by the pairing signal field generator. The third step, if the distance between the first pairing area and the second pairing area is greater than or equal to the preset distance threshold, the wireless transmitting device is in a non-pairing state, does not transmit a wireless pairing signal, and waits for a preset time. The fourth step, if after waiting for the preset time, the distance between the first pairing area and the second pairing area meets the condition described in the second step, that is, the distance between the first pairing area and the second pairing area is less than the preset distance threshold, the wireless transmitting device is in a pairing state and transmits a wireless pairing signal.
[0063] Furthermore, the intelligent sensing method also includes: when the pairing area of the wireless transmitting device and the pairing area of the wireless receiving device are close to each other, that is, the distance between the two is less than a preset distance threshold, the distance between the pairing sensor of the wireless transmitting device and the pairing signal field generator of the wireless receiving device is reduced to a distance that can sense the signal field, and the wireless transmitting device enters a pairing state; within the same wireless communication signal coverage area, the radio operating frequency bands of the wireless transmitting devices of multiple wireless intelligent sensing systems are different from each other, thereby avoiding wireless interference between each other and ensuring the stability and reliability of wireless communication; the wireless gateway is connected to the wireless LAN and the local server, and can also be connected to the cloud computer and server through a router; the nursing staff's mobile phone, tablet, and computer are connected to the wireless LAN.
[0064] The wireless intelligent sensor system described in the present application may also include one or more dedicated wireless transmitting devices, including but not limited to wireless medical equipment transmitting devices, wired sensor adapter wireless transmitting devices, and wireless emergency alarm devices. The dedicated wireless transmitting device and the wireless receiving device are connected to each other through two-way wireless communication; see Fig.15 As shown, the wireless medical device transmitter includes an input interface, which can receive data or alarm signals output from the medical device and send them to the wireless receiving device through the two-way wireless communication, and can also control or set the medical device; see Fig.16 As shown, the dedicated wireless transmitting device may also include a wired sensor signal input interface, which can be connected to a wired sensor. The wired sensor and the dedicated wireless transmitting device may be located at different positions, connected to each other through a cable, and constitute a non-integrated wireless intelligent sensor; see Fig.17As shown, the wireless receiving device may also include a wired alarm signal output interface, and the wireless receiving device may output the received alarm signals of the wireless intelligent sensor and the non-integrated wireless intelligent sensor through the wired alarm signal output interface, and may be connected to the signal input interface of other wired monitoring devices through a cable, including but not limited to the ward station input interface of the wired nurse station system and the wireless adapter input interface of the wireless nurse station system; the wireless receiving device may also include a wired sensor signal output interface, and the wireless receiving device may output the received sensor signal through the wired sensor signal output interface, and be connected to the input interface of other wired monitoring devices through a plug or a cable; the device category and ID of the wireless intelligent sensor can be identified by the wireless receiving device. BRIEF DESCRIPTION OF THE DRAWINGS
[0065] In order to more clearly illustrate the technical solution of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.
[0066] Figure 1 This is a first schematic diagram of the wireless intelligent sensing system proposed by the present invention.
[0067] Figure 2 This is a second schematic diagram of the wireless intelligent sensing system proposed by the present invention.
[0068] Figure 3 This is a third schematic diagram of the wireless intelligent sensing system proposed by the present invention.
[0069] Figure 4 This is a fourth schematic diagram of the wireless intelligent sensing system proposed by the present invention.
[0070] Figure 5a and 5b This is a fifth schematic diagram of the wireless intelligent sensing system proposed by the present invention.
[0071] Figure 6 This is the sixth schematic diagram of the wireless intelligent sensing system proposed by the present invention.
[0072] Figure 7 This is the seventh schematic diagram of the wireless intelligent sensing system proposed by the present invention.
[0073] Figure 8 This is the eighth schematic diagram of the wireless intelligent sensing system proposed by the present invention.
[0074] Fig. 9 This is the ninth schematic diagram of the wireless intelligent sensing system proposed by the present invention.
[0075] Fig.10 This is the tenth schematic diagram of the wireless intelligent sensing system proposed by the present invention.
[0076] Fig.11 This is the eleventh schematic diagram of the wireless intelligent sensing system proposed by the present invention.
[0077] Fig.12 This is the twelfth schematic diagram of the wireless intelligent sensing system proposed by the present invention.
[0078] Fig.13 This is the thirteenth schematic diagram of the wireless intelligent sensing system proposed by the present invention.
[0079] Fig.14 This is the fourteenth schematic diagram of the wireless intelligent sensing system proposed by the present invention.
[0080] Fig.15 This is the fifteenth schematic diagram of the wireless intelligent sensing system proposed by the present invention.
[0081] Fig.16 This is the sixteenth schematic diagram of the wireless intelligent sensing system proposed by the present invention.
[0082] Fig.17 This is the seventeenth schematic diagram of the wireless intelligent sensing system proposed by the present invention.
[0083] Fig.18 This is a prior art diagram corresponding to the wireless intelligent sensing system proposed in the present invention. DETAILED DESCRIPTION
[0084] The technical solutions in the embodiments will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0085] Example
[0086] The embodiment of the present invention proposes a wireless intelligent sensing system and an intelligent sensing method. The following introduces the application cases of the present invention: the present invention relates to wireless intelligent monitoring in the field of nursing care for disabled elderly people and hospitalized patients, wireless intelligent sensing networks, wireless medical record information systems, wireless nursing information systems, wireless medical equipment networks, hospital-specific wireless Internet of Things systems, wireless calls, emergency call systems, wireless positioning systems within hospitals, wireless remote monitoring and alarm systems, wireless remote ward rounds systems, wireless manual remote accompanying systems, wireless space power supply systems, wireless hospital Internet of Things + medical care management SaaS systems; it also relates to a patient monitoring system, including a wireless intelligent pressure sensor for detecting the presence of patients, which can The patent can be installed on the bed, chair, wheelchair, floor, toilet and a multi-channel wireless monitor in the ward, which can wirelessly connect multiple wireless intelligent pressure sensors to monitor the presence of hospitalized patients; a medical video intercom system can also be formed by including a camera patient ward video intercom terminal and a nurse video intercom monitoring terminal, wherein the wireless intelligent pressure sensor in this patent can correspond to a wireless intelligent pressure sensor, a wireless non-contact physiological parameter monitoring intelligent sensor, a wireless artificial intelligence AI monitoring sensor, a wireless monitoring camera, a wireless video intercom device, a wireless physiological parameter monitoring sensor, a wireless medical equipment monitoring transmitter, and a wireless smart bracelet worn by the patient.
[0087] The wireless receiving device in this patent can correspond to multi-channel wireless monitors, wireless ward stations or wireless ward station adapters, wireless alarm indicator lights, wireless intelligent security monitors, wireless intelligent access control monitors, wireless multi-channel AI intelligent monitors, wireless ward intelligent voice central monitors, wireless intelligent central multi-channel AI intelligent monitors, wireless intelligent central medical equipment monitors, wireless locators, and can also correspond to several wireless intelligent devices in the hospital's dedicated Internet of Things system, including nurse mobile alarm information receiving terminals, corridor alarm information display screens, nurse station central alarm monitors, nurse station alarm information display screens, medical staff / management personnel smartphones, smart bracelets, and tablet computers with dedicated monitoring APPs, and can also include the hospital's local wireless network servers, cloud servers, remote care personnel mobile phones with dedicated remote care APPs, tablet computers, and computers with dedicated remote care applications.
[0088] In the implementation case of wireless intelligent monitoring in hospital wards, the wireless ward monitoring system for hospitalized patients uses wireless intelligent sensors to monitor patients in the ward in many aspects, including but not limited to monitoring patients' behavior, physiological parameters, emergency conditions, and working status of medical equipment. It can prevent patients from falling and provide patients with better safety protection and better quality of care. The system includes a wireless multi-channel monitor, and also includes one or more wireless intelligent sensors wirelessly connected to it, including a wireless intelligent bed pressure sensor installed on the bed, and can also include a wireless intelligent floor mat sensor installed on the floor at the bed exit or a wireless intelligent bed railing sensor installed on the bed railing; a wireless intelligent seat pressure sensor installed on the seat, a wireless intelligent toilet pressure sensor installed on the toilet seat, and a wireless intelligent safety emergency call button carried by the patient, which is used for the patient to call for emergency help in the event of a sudden dangerous situation; it can also include a wireless power transmission device, an intelligent nurse bracelet transmitter, a wireless intelligent defecation and urination sensor, a wireless intelligent bed railing sensor, a wireless intelligent ground sensor, a wireless intelligent carbon dioxide concentration detector, a wireless intelligent oxygen concentration detector, a wireless intelligent ward temperature sensor, and a wireless intelligent toilet water leakage sensor; the wireless multi-channel monitor corresponds to the wireless receiving device and can be installed on the inner or outer wall of the ward.
[0089] The wireless ward monitoring system may also include a wireless ward station corresponding to the wireless receiving device, a wireless ward station adapter referred to as NCR, and a wireless alarm indicator light; when the sensor body detects that the patient is in a dangerous state, it will trigger the wireless intelligent sensor to enter an alarm state, and send the alarm information data to the wireless multi-channel controller through the two-way wireless communication between the wireless intelligent sensor and the wireless multi-channel controller, triggering the wireless multi-channel monitor to enter an alarm state, and at the same time, the wireless ward station, wireless ward station adapter, and wireless alarm indicator light wirelessly connected to it may also be triggered to enter an alarm state through the two-way wireless communication; after the nurse enters the ward, pressing the reset button of the wireless multi-channel monitor can make The alarm state of the wireless multi-channel monitor is eliminated and it enters the standby state; after entering the room, the nurse can also remotely control the wireless multi-channel monitor through the wireless intelligent nurse transmitter, so that the alarm state of the wireless multi-channel monitor is eliminated and it enters the standby state; when the alarm of the wireless multi-channel monitor is reset and enters the standby state, the alarms of the wireless ward station, the wireless ward station adapter, and the wireless alarm indicator light can be reset through the two-way wireless communication and they also enter the standby state; the wireless intelligent sensor will no longer trigger the wireless multi-channel monitor in the standby state to enter the alarm state, so that the nurse can avoid triggering the wireless intelligent sensor and then triggering the wireless multi-channel controller to enter the alarm state during the process of caring for the patient.
[0090] The wireless multi-channel monitor, wireless ward station, wireless ward station adapter, and wireless alarm indicator light may also include a wireless network transmitter corresponding to the wireless transmitting device. When the wireless ward station enters the alarm state, the alarm information can be sent through the wireless network transmitter to include but not limited to the wireless intelligent central medical equipment monitor, the wireless intelligent central multi-channel AI intelligent monitor, and the wireless locator. It may also include several wireless intelligent devices that constitute the hospital's dedicated Internet of Things system, including a nurse's mobile alarm information receiving terminal, a corridor alarm information display screen, a nurse station central alarm monitor, a nurse station alarm information display screen, medical staff / management personnel smartphones, smart bracelets, and tablets with dedicated monitoring APPs, and may also include the hospital's local wireless network server, cloud server, remote care personnel mobile phones with dedicated remote care APPs, tablets, and computers with dedicated remote care applications.
[0091] It can also include a wireless intelligent nurse transmitter that can be carried by the nurse. The wireless intelligent nurse transmitter can include a reset button, and has two working modes: automatic reset and manual reset. In the manual reset working mode, when the nurse enters the ward for nursing, the reset button of the wireless intelligent nurse transmitter can be pressed to reset the alarm state of the wireless multi-channel monitor, so that it enters the standby state, and the wireless intelligent sensor will no longer trigger the wireless multi-channel monitor in the standby state to enter the alarm state; the wireless ward station can be installed in the position of the original wired ward station and replace the original wired ward station. The wireless ward station can be wirelessly connected to include but not limited to the wireless multi-channel monitor, wireless intelligent sensor , wireless intelligent pager; the call output port of the wireless ward station can be connected to the call port of the ward station, replacing the original wired ward station and connected to the wired nurse station system through the call port; the NCR can be installed near the ward station, and the NCR is connected to the input interface of the wired ward station through a connecting cable. When the wireless multi-channel monitor enters the alarm state, the wireless ward station and the wireless ward station adapter wirelessly connected to it can be made to enter the alarm state through the two-way wireless communication, and at the same time, the wired ward station can be triggered to enter the call state through the connecting cable of the NCR, thereby triggering the nurse station system to enter the call state and display the called ward number, and issuing a call prompt to the nurse.
[0092] The wireless multi-channel monitor, wireless ward station, wireless ward station adapter, and wireless alarm indicator light may also include the display unit, operating device, input and output device, energy module, and voice playback device. The display unit may use multiple LED indicators, or an ink screen or a liquid crystal display.
[0093] The display unit of the wireless alarm indicator light can display the status of the wireless multi-channel monitor connected to it, including standby status, monitoring status, undervoltage status, and wireless fault status, and also includes an alarm indicator light and a sound alarm device with adjustable volume; when the wireless multi-channel monitor enters the monitoring state, the nurse can check whether the wireless multi-channel monitor installed in the ward is in the monitoring state through the monitoring status indicator light of the wireless alarm indicator light installed in the corridor, ensuring that the wireless ward system is in the monitoring state, without entering the ward to check the monitoring status indicator light of the wireless multi-channel controller, so as to avoid disturbing the patient; when the wireless multi-channel monitor enters the alarm state, the wireless alarm indicator light wirelessly connected to it can enter the alarm state through the two-way wireless communication, and the nurse can see the wireless alarm indicator light installed in the corridor flashing, directly indicating the location of the ward where the alarm occurs; the wireless alarm indicator light can also be installed in the nurse station or the nurse duty room, so that the nurse can quickly obtain the information of the alarm and respond to the alarm quickly; the nurse can also obtain the fault status prompt information of the wireless multi-channel monitor installed in the ward through the status indicator light of the wireless alarm indicator light installed in the corridor outside the ward without entering the ward, including but not limited to the undervoltage state and the wireless fault state.
[0094] The wireless multi-channel monitor can establish a wireless connection relationship with one or more wireless intelligent sensors through a pairing process, and can also establish a wireless connection relationship with one or more wireless ward stations or wireless ward station adapters and wireless alarm indicator lights through a pairing process.
[0095] The wireless intelligent sensor may also include a position sensor, and a position signal generator is fixed at the original installation position of the wireless intelligent sensor, and the original installation position includes but is not limited to a mattress, a seat, a cushion of a wheelchair, and a seat ring of a toilet. When the wireless intelligent sensor is located at the original installation position, the position signal generator signal can be detected. When the position of the wireless intelligent sensor is moved away from the original installation position, the position sensor cannot detect the signal of the position signal generator, and the wireless intelligent sensor sends a prompt signal to the wireless receiving device that the installation position is moved away from the original installation position; wherein, the position sensor may include but is not limited to a mechanical or capacitive induction position switch, and the position signal generator includes but is not limited to a mechanical contact or a conductive contact, an induction electrode, which can be detected by the position sensor;
[0096] After entering the monitoring state, the wireless multi-channel monitor conducts the two-way wireless communication with the wirelessly connected wireless intelligent sensors, wireless ward stations, wireless ward station adapters, and wireless alarm indicators. The wireless ward stations, wireless ward station adapters, and wireless alarm indicators also enter the monitoring state. The wireless multi-channel monitor can display the working status of all wirelessly connected wireless intelligent sensors through the display unit, including but not limited to standby state, pre-monitoring state, monitoring state, early warning state, alarm state, shutdown state, sensor connection failure, and sensor replacement prompt. It can also display a prompt that the wireless intelligent sensor has been moved away from the original installation position.
[0097] The wireless multi-channel monitor can display the working status of the wireless multi-channel monitor including but not limited to standby status, monitoring status, early warning status, alarm status, and shutdown status through the display unit. It can also display wireless connection failure, wired sensor connection failure, ward station connection cable connection failure, wireless multi-channel monitor setting tampering, wireless multi-channel monitor being moved away from the original installation position, battery replacement prompt, and sensor replacement prompt.
[0098] The display unit can use multiple LED indicators to correspond to multiple wireless smart sensors in different installation positions, such as wireless smart sensors installed in beds, chairs, and toilets. The LED indicators can use different display states including bright, slow flashing, rapid flashing, and off to correspond to standby state, monitoring state, alarm state, and shutdown state respectively; the display unit also includes multiple LED indicators to correspond to the working states of the wireless multi-channel monitor, corresponding to standby state, monitoring state, alarm state, shutdown state, and battery undervoltage state respectively.
[0099] The display unit may also be an ink screen or an LCD display screen, and may display icons of multiple colors and patterns on the display screen, or may use multiple texts to express the working status of multiple wireless intelligent sensors in different installation positions; for example, on the ink screen or LCD display screen, multiple patterns representing hospital beds, chairs, toilets, and emergency alarms may be used to express three types of wireless intelligent sensors and wireless intelligent emergency alarm transmitters installed in hospital beds, chairs, and toilets, respectively; and multiple different texts or display icons expressing standby status, monitoring status, alarm status, and shutdown status may be used to display the working status of multiple different wireless intelligent sensors, including standby status, monitoring status, alarm status, and shutdown status; the ink screen or LCD display screen may be able to more intuitively display the installation positions of multiple wireless intelligent sensors and their working status.
[0100] When the wireless multi-channel monitor and the wireless intelligent sensor are both in the monitoring state, if the wireless intelligent sensor detects that the patient is in a dangerous state, it will enter the alarm state. After receiving the wireless alarm signal of the wireless intelligent sensor, the wireless multi-channel monitor will also enter the alarm state, and the position and alarm state of the wireless intelligent sensor where the alarm occurs will be displayed through the display unit, and an audible and visual alarm will be issued; the nurse can obtain the working status information of the wireless intelligent sensor through the display unit; after entering the standby state, the wireless multi-channel monitor will suspend the two-way wireless communication with all wirelessly connected wireless intelligent sensors, and the wireless multi-channel monitor will not be triggered by the wireless intelligent sensor to enter the alarm state; if the wireless intelligent sensor belongs to the wireless intelligent sensor that actively enters the monitoring category, it will automatically enter the preparatory monitoring state when the wireless multi-channel monitor is in the standby state, and the wireless intelligent sensor will automatically enter the monitoring state after the wireless multi-channel monitor enters the monitoring state; if the wireless intelligent sensor belongs to the wireless intelligent sensor that passively enters the monitoring category, after the wireless multi-channel monitor enters the monitoring state and the sensor body of the wireless intelligent sensor detects the presence of the patient, it will automatically enter the monitoring state, if the patient is not detected, it will continue to be in the standby state.
[0101] The wireless multi-channel monitor can include three operating modes. The first operating mode is a semi-automatic mode. The operating device of the wireless multi-channel monitor includes a pause button. When a nurse enters the ward for care, he can press the pause button to put the wireless multi-channel monitor into a standby state for a period of time. The length of the time period can be selected. During the time period, the wireless multi-channel monitor is in a standby state and stops the two-way wireless communication with all wireless intelligent sensors. The wireless multi-channel monitor will not be triggered by the wireless intelligent sensors to enter an alarm state. After the time period ends, the wireless multi-channel monitor automatically enters a monitoring state and resumes the two-way wireless communication with all wireless intelligent sensors. The wireless multi-channel monitor can be triggered by the wireless intelligent sensors connected to it to enter an alarm state.
[0102] The second operation mode is the manual mode, and the operation device includes a pause button and a monitoring button. When the nurse enters the ward for nursing, the wireless multi-channel monitor can enter a continuous standby state by pressing the pause button. During this period of time, the wireless multi-channel monitor stops the two-way wireless communication with all wireless intelligent sensors, and the wireless multi-channel monitor will not be triggered to enter an alarm state. Before the nurse leaves the room after completing the nursing work, the wireless multi-channel monitor can enter the monitoring state by pressing the monitoring button, and the two-way wireless communication between it and all wireless intelligent sensors is restored. A plurality of wireless intelligent sensors in the preparatory monitoring state that are wirelessly connected to the wireless multi-channel monitor also enter the monitoring state. If the wireless ward monitoring system works normally, the monitoring state indicator light of the wireless multi-channel monitor shows that it is in the monitoring state, and the wireless multi-channel monitor can be triggered by the wireless intelligent sensor connected to it to enter the alarm state. The pause button and the monitoring button can be a button switch integrated with the wireless multi-channel monitor, or a separate wireless remote control button, or a touch switch button or a touch switch button, or a toggle switch; or two independent buttons, or a dual-function multiplexed button.
[0103] The third operating mode is the automatic mode. The wireless multi-channel monitor may include a wireless intelligent transmitter carried by a nurse. The wireless multi-channel monitor may automatically adjust the sensitivity of the wireless receiving circuit so that it can only receive the wireless signal of the wireless intelligent transmitter in the ward, but cannot contact the wireless signal of the wireless intelligent transmitter outside the ward. In this way, it can be determined whether the nurse carrying the wireless intelligent transmitter enters or leaves the ward. In the automatic mode, the wireless transceiver of the wireless intelligent transmitter will automatically transmit a wireless signal at a constant period. The wireless signal includes a unique ID corresponding to the nurse's number. When the nurse enters the ward with the wireless intelligent transmitter, the wireless signal can be received by the wireless multi-channel monitor, so that the wireless multi-channel monitor in an alarm state can be detected. The wireless multi-channel monitor enters standby mode; when the nurse leaves the ward with the wireless intelligent transmitter, the wireless signal exceeds the effective receiving and sending distance of the wireless communication, and the wireless multi-channel monitor automatically enters the monitoring mode after failing to receive the wireless signal; the time when the wireless signal is received and the wireless signal including the unique ID will also be recorded in the wireless multi-channel controller, and the alarm information can be sent to the local wireless network server, cloud server and other network receiving terminals of the hospital through the wireless network transmitter, including but not limited to the nurse mobile alarm information receiving terminal, corridor alarm information display screen, central alarm monitor of the nurse station, alarm information display screen of the nurse station, smart phone, smart bracelet and tablet computer of medical staff / management personnel with special monitoring APP.
[0104] The wireless smart bed pressure sensor includes a pressure sensor body and a wireless transmitting device connected thereto, which can detect the pressure exerted by the patient's body on the pressure sensor body after the patient gets on the bed; when the patient's body comes to the bed, the pressure sensor body can detect the patient's weight and trigger the wireless smart bed pressure sensor to enter the preparatory monitoring state. If the pressure sensor body does not detect the patient's weight, the wireless smart bed pressure sensor will be in standby state.
[0105] When the wireless multi-channel monitor enters the monitoring state, the wireless intelligent sensor wirelessly connected to it can automatically enter the monitoring state. When the patient's body moves to the edge of the bed, the wireless transmitter will transmit a warning signal to the wireless multi-channel monitor and trigger the wireless multi-channel monitor to enter the warning state; when the patient leaves the bed, the wireless transmitter will transmit an alarm signal to the wireless multi-channel monitor and trigger the wireless multi-channel monitor to enter the alarm state.
[0106] The wireless intelligent seat pressure sensor includes a pressure sensor body and a wireless transmitting device connected to it, which can detect the pressure exerted by the patient's body on the pressure sensor body after the patient enters the seat. The pressure sensor body can detect the patient's weight and trigger the wireless intelligent seat pressure sensor and the wireless multi-channel monitor to enter the monitoring state; when the patient's body leaves the seat, the wireless transmitting device will transmit an alarm signal to the wireless multi-channel monitor and trigger the wireless multi-channel monitor to enter the alarm state.
[0107] The wireless smart toilet pressure sensor includes a pressure sensor body and a wireless transmitter connected to it, which can detect the pressure exerted by the patient's body on the pressure sensor body after sitting on the toilet seat. The pressure sensor body can detect the patient's weight. When the patient's body leaves the toilet seat, the wireless transmitter will send an alarm signal to the wireless multi-channel monitor and trigger the wireless multi-channel monitor to enter the alarm state.
[0108] The wireless intelligent safety emergency call button includes an emergency call switch and a wireless transmitting device connected thereto, and may also include a fall detection sensor, which may be an acceleration sensor or an impact detection sensor, capable of detecting a patient falling to the ground; a long-distance pickup microphone, voice recognition and voice control functions may also be added, so that when a patient encounters an emergency, a voice call for help may be used, including but not limited to SOS, HELP, and the voice recognition function may be automatically awakened. The wireless intelligent safety emergency call button will play a voice message "Do you need emergency help?", and when the patient confirms, the wireless intelligent safety emergency call button and the wireless multi-channel monitor will be triggered to enter an alarm state.
[0109] The wireless intelligent defecation and urine sensor includes a defecation and urine odor sensor body installed on an adult diaper or a surgical pad and a wireless transmitting device connected thereto, which can detect the concentration of defecation and urine odor in the adult diaper or the surgical pad that can absorb urine used by patients with incontinence; the wireless intelligent defecation and urine sensor can also include a urine humidity sensor body, which can detect urine wetness; when urine humidity or defecation and urine odor is detected, the wireless intelligent defecation and urine sensor and the wireless multi-channel monitor will be triggered to enter the monitoring state; when the defecation and urine odor concentration is detected to be higher than the set threshold value or when the urine humidity sensor body detects that the urine humidity is higher than the set threshold value, the wireless transmitting device will transmit an alarm signal to the wireless multi-channel monitor and trigger the wireless multi-channel monitor to enter the alarm state; the defecation and urine sensor body can be an NH3 hydrogen sulfide gas or H2S ammonia gas detection sensor, or it can be a sensor composed of NH3 hydrogen sulfide gas and H2S ammonia gas.
[0110] The wireless intelligent bed rail sensor comprises a bed rail pressure sensor body installed on the bed rail and a wireless transmitting device connected thereto, which can detect the pressure of the patient's hand on the bed rail pressure sensor body; when the patient's body comes to the bed, the wireless intelligent bed rail sensor and the wireless multi-channel monitor enter the preparatory monitoring state; before leaving the room, the nurse presses the monitoring button to make the wireless multi-channel monitor enter the monitoring state, and through the two-way wireless communication, the multiple wireless intelligent sensors connected to it enter the monitoring state; when the patient on the bed holds the bed rail sensor and tries to leave the bed, the wireless transmitting device will send a warning signal to the wireless multi-channel monitor and trigger the wireless multi-channel monitor to enter the warning or alarm state.
[0111] In the bed monitoring application, the wireless intelligent floor sensor is installed on the floor at the bed exit to monitor the patient's behavior of leaving the bed; it includes a floor pressure sensor body installed at the bed exit and a wireless transmitter connected thereto, which can detect the pressure of the patient's feet on the floor pressure sensor body when getting out of bed, so as to judge that the patient is getting out of bed and trying to leave the bed; wherein the sensitivity of the floor pressure sensor body can detect the pressure generated by the patient's toes touching the floor pressure sensor body and trigger the wireless intelligent floor sensor alarm to enter the alarm state, and the wireless transmitter will transmit an alarm signal to the wireless multi-channel monitor and trigger the wireless multi-channel monitor to enter the alarm state; the sensor body includes but is not limited to the pressure sensor body, and the pressure sensor body, the wireless transmitter and its energy module, and the paired sensor are encapsulated in a complete whole through the upper epithelial layer and the bottom epithelial layer of the pressure sensor body to constitute the wireless intelligent pressure sensor, and when it is placed flat on a horizontal plane, its upper surface is a flat surface.
[0112] For patients with a higher risk of falling, a wireless smart bed edge sensor installed on the edge of the bed can also be included. When the patient's body sits on the wireless smart bed edge sensor, the wireless smart bed edge sensor enters a warning state and sends a warning message to the wireless receiving device; when the patient's body completely leaves the bed, the wireless smart bed edge sensor enters an alarm state and sends an alarm message to the wireless receiving device.
[0113] The wireless intelligent nurse transmitter is carried by the nurse, and includes a wireless transmitting device and an energy module, which can periodically transmit a wireless signal containing the ID number of the wireless intelligent nurse transmitter to the wireless receiving device at a fixed time period; when the wireless intelligent nurse transmitter enters the ward where the wireless multi-channel monitor is installed, the wireless multi-channel monitor can receive the wireless signal of the wireless intelligent nurse transmitter, and the two carry out the two-way wireless communication, and the wireless intelligent nurse transmitter can receive the wireless signal containing the ID number of the wireless intelligent nurse transmitter periodically transmitted by the wireless intelligent nurse transmitter to the wireless multi-channel monitor; if the wireless multi-channel monitor has not received the wireless signal before, the wireless multi-channel monitor can receive the wireless signal; if the wireless multi-channel monitor has not received the wireless signal before, the wireless intelligent nurse transmitter can receive the wireless signal; if the wireless multi-channel monitor has not received the wireless signal ... The channel monitor is in monitoring state or alarm state. When a nurse carrying a wireless intelligent nurse transmitter enters the ward, the wireless multi-channel monitor can receive the wireless signal emitted by the wireless intelligent nurse transmitter and automatically exit the monitoring state or the alarm state is in a suspended state. The wireless multi-channel monitor notifies all wireless intelligent sensors wirelessly connected to it to enter a suspended working state through the two-way wireless communication. The wireless multi-channel monitor can also send a wireless signal containing the wireless intelligent nurse transmitter ID and the room number where the wireless multi-channel monitor is installed to the wireless alarm network and reset the alarm in the wireless alarm network. As long as the nurse stays in the room , the signal change of the sensor body will no longer trigger the wireless intelligent sensor to enter the alarm state, and the wireless multi-channel monitor and all the wireless intelligent sensors connected to it will not be triggered to enter the alarm state; the corresponding data of the time when the nurse receives the alarm signal, the time when the nurse arrives at the ward where the alarm occurs, the ward number, and the time when the nurse leaves the ward will also be automatically recorded in the central alarm monitor of the nurse station in the server of the wireless alarm network, and can also be forwarded to the alarm information display screen of the nurse station through the wireless alarm network, the smart phone, smart bracelet, and tablet computer of the medical staff / management personnel with a dedicated monitoring APP, and can also include the local wireless network server of the hospital, the cloud server, and can analyze and process the recorded data through the corresponding application to output a variety of management statistical reports for management personnel as the basis for performance appraisal and management improvement; in particular, the behavior statistical report and nursing statistical report for a certain patient can be generated through the wireless intelligent sensor data record, so as to improve the nursing work for the management personnel and provide the patient with a targeted, personalized, and better nursing plan; after a safety accident occurs, the entire process of the accident can be replayed through the recorded data to provide the insurance company's investigators with direct and reliable key evidence related to the accident.
[0114] The wireless multi-channel monitor includes a microprocessor and a corresponding embedded program, an EEPROM storage unit, a wireless transceiver circuit, an audio and video alarm device, and may also include a display unit including but not limited to an ink screen display, a liquid crystal display, an LED indicator, an operating device, a voice playback device, an input and output interface device, and an energy module, wherein the input and output interface device includes a driving circuit for an LED lamp and a speaker. The microprocessor and the corresponding embedded program can display a variety of contents to be displayed through the display unit, including but not limited to text, symbols, patterns, charts, and pictures to express status information, alarm information, and prompt information. It can also communicate with the wireless network device through the audio and video camera and the two-way wireless communication. The input and output interface device can also include a relay drive circuit and a ward station control relay. The microprocessor and the corresponding embedded program can control the ward station control relay contact to close or open through the relay drive circuit. A pair of contacts of the ward station control relay will be connected to the corresponding leads of the connecting cable of the ward station. The ward station can be triggered to enter a call state or a reset state through the closing / opening of the ward station control relay contacts. The wireless multi-channel monitor corresponds to the wireless receiving device, which includes multiple wireless channels, can wirelessly connect multiple wireless intelligent sensors and monitor the working status of these wireless intelligent sensors; the wireless intelligent sensor includes a sensor body and the wireless transmitting device connected thereto, the wireless transmitting device and the wireless receiving device are respectively connected to their respective energy modules; the wireless transmitting device is connected to the paired sensor, and the wireless receiving device includes a paired signal field generator; wherein the paired signal field generator includes but is not limited to a magnetic field generator, a light wave field generator, an electromagnetic field generator, and an electric field generator; the paired sensor includes but is not limited to the paired sensor, a light induction sensor, an electromagnetic induction sensor, a capacitive induction sensor, an acoustic wave induction sensor, and a mechanical touch switch sensor.
[0115] The wireless multi-channel monitor may include a pairing signal field generator integrated with its housing. By operating the pairing signal field generator close to the pairing sensor corresponding area of the wireless intelligent sensor, the wireless transmitting device of the wireless intelligent sensor is triggered to enter a pairing state or an unpairing state and the pairing or unpairing operation of the wireless intelligent sensor and the wireless multi-channel monitor is realized. However, this scheme also has some security risks. The pairing state of the wireless intelligent sensor of the wireless multi-channel monitor can be unintentionally or intentionally illegally tampered with through the same operation. For example, an unrelated cleaning staff may bring the wireless intelligent sensor and the wireless multi-channel monitor together due to unintentional operation, thereby causing unintentional and illegal tampering of the pairing state of the wireless intelligent sensor of the wireless multi-channel monitor, causing partial function failure of the wireless multi-channel monitoring system, thereby causing security risks.
[0116] The wireless multi-channel monitor may also include a split pairing signal field generator that is detachable from the housing of the wireless multi-channel monitor. The detachable split pairing signal field generator can be carried by a nurse. When pairing or unpairing operations are required, the pairing signal field generator is placed close to the pairing sensor corresponding area of the wireless intelligent sensor to trigger the wireless transmitting device to enter a pairing state or an unpairing state and implement the pairing or unpairing operation of the wireless intelligent sensor and the wireless multi-channel monitor. After completing the required pairing or unpairing operation, the nurse can take the detachable split pairing signal field generator away, thereby preventing unintentional or intentional illegal tampering of the pairing state of the wireless intelligent sensor of the wireless multi-channel monitor by irrelevant personnel. The pairing area of the wireless multi-channel monitor may also include a ferromagnetic material, which may conduct the magnetic field of the pairing signal field generator to the pairing sensor. The detachable split pairing signal field generator may also be adsorbed on the ferromagnetic material, and the nurse may also remove the detachable split pairing signal field generator adsorbed on the ferromagnetic material.
[0117] When the pairing sensor and the pairing signal field generator are close to each other, the pairing sensor can sense the signal field generated by the pairing signal field generator, causing the output state of the pairing sensor to change, and triggering the wireless transmitting device to enter a pairing state or a release state; for example, when the pairing sensor does not sense the signal field, its initial output state can be a high level or a low level, or a contact can be in an open state or a closed state; when the pairing sensor senses the pairing signal field, its output state becomes an output state opposite to its initial output state; if the initial output state is a high level, it becomes a low level; if the output contact is in an open state, it becomes a closed state; the output of the pairing sensor is connected to the corresponding pin of the microprocessor chip through an interface circuit, such as a pull-up resistor connected to the positive pole of the power supply or an output pin of a voltage comparator, and by detecting the input level change of the corresponding pin of the microprocessor chip, it can be determined whether the pairing sensor detects the signal field of the pairing signal field generator and triggers the wireless transmitting device to enter a pairing state or a release state;
[0118] When it is necessary to replace the old wireless intelligent sensor and the wireless transmitting device with a new one to replace the old wireless intelligent sensor and the wireless transmitting device that have been wirelessly connected to the wireless receiving device, if the new and the old ones have the same device category code, the wireless receiving device automatically cancels the wireless connection with the old wireless intelligent sensor and the wireless transmitting device, and establishes the wireless connection with the new wireless intelligent sensor and the wireless transmitting device, and it is no longer necessary to perform the unpairing operation process on the old wireless intelligent sensor and the wireless transmitting device separately, and canceling the old wireless connection and establishing the new wireless connection can be completed at one time;
[0119] The LED indicator includes multiple monitoring channel indicator lights, which correspond to the monitoring channel indicator lights of wireless intelligent sensors installed in places including but not limited to beds, chairs, and toilets, and the monitoring channel indicator lights corresponding to the wireless intelligent emergency call transmitter; it also includes multiple working status indicator lights of the wireless multi-channel monitor, including but not limited to a pause status indicator light, a monitoring status indicator light, an alarm status indicator light, a wireless multi-channel monitor undervoltage status indicator light, a wireless intelligent sensor wireless connection interruption indicator light, an illegal tampering setting indicator light, an illegal movement of the wireless multi-channel monitor installation position indicator light, a wired sensor connection disconnection indicator light, a call cable connection disconnection indicator light, a wireless intelligent sensor undervoltage indicator light, a sensor replacement prompt indicator light, and a recording indicator light.
[0120] Among them, the monitoring channel indicator lights of the wireless intelligent sensors for the hospital beds, seats, and toilets, and the monitoring channel indicator lights corresponding to the wireless intelligent emergency call transmitters are printed with the corresponding text or logos of the hospital beds, seats, and toilets, respectively; the status indicator lights corresponding to the wireless intelligent sensors installed on the hospital beds can correspond to multiple types of wireless intelligent sensors installed on the hospital beds, including but not limited to wireless intelligent bed sensors, wireless intelligent early warning bed sensors, wireless intelligent magnetic buckle pull rope sensors, wireless intelligent bed armrest sensors, wireless intelligent mattress sensors, and wireless intelligent bed frame sensors; the status indicator lights corresponding to the wireless intelligent sensors installed on the seats can correspond to multiple types of wireless intelligent sensors installed on the seats, including but not limited to wireless intelligent seat sensors, wireless intelligent early warning seat sensors, wireless intelligent seat belt sensors, wireless intelligent magnetic buckle pull rope sensors, wireless intelligent hospital seat armrest sensors, wireless intelligent seat cushion sensors, and wireless intelligent seat frame sensors.
[0121] The status indicator lights corresponding to the wireless smart sensors installed in the restroom can correspond to multiple types of wireless smart sensors installed on the toilet, including but not limited to wireless smart floor mat sensors, wireless smart seat belt sensors, wireless smart magnetic buckle pull cord sensors, wireless smart toilet armrest sensors, wireless smart toilet seat pad sensors, wireless smart toilet seat ring sensors, and may also include wireless smart safety emergency call transmitters.
[0122] The EEPROM memory of the wireless transmitting device also stores unique and unmodifiable data including the ID coding data and device category coding data of the wireless intelligent sensor, and configurable and modifiable data including patient ID, alarm delay time data, working status control data, delay time of the wireless intelligent sensor, radio communication parameters, sensor life, and patient danger level data; wherein, the device category coding data can represent the category of the device and the intended use location, and the intended use location includes the category, room number and installation location of the room where the wireless intelligent sensor is installed, including but not limited to beds, chairs, wheelchairs, toilets, ward doors, ward windows, passage doors, and corridors outside wards; the device category coding data can be written, edited or written by a dedicated wireless programmer and dedicated programming software including a dedicated mobile phone APP and dedicated PC programming software.
[0123] The alarm information includes the ID coding data and the device category coding data of the wireless intelligent sensor, which correspond to the number of the room where the wireless intelligent sensor is installed and the installation location in the room, respectively. The installation location in the room includes but is not limited to a bed, a chair, the floor, and a toilet; the device category coding data corresponds to the category of the device and also corresponds to the installation location in the room.
[0124] The device category encoding data may represent the category of the device and the intended use location, including the number of the ward where the wireless intelligent sensor is installed and the installation location including but not limited to the bed, chair, wheelchair, toilet, ward door, ward window, passage door, and corridor outside the ward.
[0125] The same wireless intelligent sensor can use different device category coding data and be applied to multiple different predetermined usage locations. For example, the wireless intelligent magnetic buckle drawstring sensor can use 4 different device category coding data and correspond to 4 different predetermined usage locations, including beds, chairs, wheelchairs, and toilets. When a nurse uses a wireless multi-channel monitor to pair with a wireless intelligent magnetic buckle drawstring sensor that uses the device category coding data of the corresponding bed, the wireless multi-channel monitor can obtain the device category coding data of the corresponding bed of the wireless intelligent magnetic buckle drawstring sensor through the two-way wireless communication, and automatically assign the wireless intelligent magnetic buckle drawstring sensor to the monitoring channel of the corresponding bed, and use the bed monitoring channel indicator light to display the working status of the wireless intelligent magnetic buckle drawstring sensor. There is no need to manually select the required monitoring channel through the operation interface, which simplifies the nurse's operation, saves the man-hours required for the pairing operation, and reduces the operation cost. Difficulty of operation; when the wireless intelligent sensor in a ward triggers the wireless multi-channel monitor installed in the ward to enter the alarm state, the wireless multi-channel monitor will simultaneously transmit the device code of the wireless intelligent sensor that has issued the alarm, the patient's risk level data and the room number where the wireless multi-channel monitor is installed to the wireless gateway of the wireless alarm network, and the wireless intelligent receiving device connected to the wireless alarm network can receive the device code of the wireless intelligent sensor that has issued the alarm, the room number data where the wireless multi-channel monitor is installed, and the patient's risk level data, and the wireless intelligent receiving device MCU and the corresponding embedded program can decode the installation location and room number of the wireless intelligent sensor according to the device code and room number data, and can display the installation location and room number. The nurse can quickly find the wireless intelligent sensor that has issued the alarm according to the displayed room number and installation location, find the patient who triggered the wireless intelligent sensor and quickly provide appropriate care.
[0126] The operating device includes a reset pause button, a monitoring button, an automatic reset selection switch, and may also include a recording and playback multiplexing button for recording prompt voice. The wireless multi-channel monitor may include a power switch or may not need a power switch; after power is turned on, the wireless multi-channel monitor enters a standby state, and the pairing operation between the pairing signal field generator and the wireless intelligent sensors installed on the beds, chairs, and toilets can be used to pair the indicator lights of the wireless intelligent sensors of the beds, chairs, and toilets of the wireless multi-channel monitor with the corresponding wireless intelligent sensors to establish a wireless connection relationship; the wireless emergency call indicator light can also be paired with a wireless intelligent emergency call transmitter in the same way; after the pairing operation is completed, the indicator lights corresponding to the beds, chairs, and toilets of the wireless multi-channel monitor can respectively display the working status of the wireless intelligent sensors installed at these locations and can be started to be used; the indicator lights can use different display states to represent standby state, monitoring state, and alarm state, and can also display a variety of prompts including but not limited to prompts that the settings of the wireless multi-channel controller have been illegally tampered with, the installation location has been moved, the wired sensor or the ward station connection cable has been accidentally disconnected, the power adapter has been disconnected, the battery of the wireless multi-channel monitor is undervoltage, and the wireless intelligent sensor has exceeded the service life and needs to be replaced, the installation location has been moved, the distance from the wireless multi-channel monitor is too far, and the wireless communication failure.
[0127] Before the nurse places the patient on the bed and leaves the ward, she can press the monitoring button. The wireless multi-channel monitor activates the corresponding wireless intelligent bed sensor through the two-way wireless communication to enter the monitoring state. If the wireless intelligent bed sensor enters the monitoring state and notifies the wireless multi-channel controller of this situation through the two-way wireless communication, the indicator light of the corresponding bed will show that it has entered the monitoring state, indicating that the wireless intelligent monitoring system is working normally, and the nurse can leave the ward; if the wireless intelligent bed sensor cannot enter the monitoring state, or cannot perform the two-way wireless communication with the wireless multi-channel controller, the indicator light of the corresponding bed will not show that it has entered the monitoring state, and the nurse needs to check whether the sensor is installed in the correct position, or whether the sensor has a fault and take corresponding measures, or notify the relevant department to take corresponding measures.
[0128] When the sensor body of the wireless intelligent sensor for the bed detects that the patient is leaving the bed or has left the bed, it enters the alarm state and triggers the wireless multi-channel monitor to enter the alarm state through wireless communication. The indicator light of the corresponding bed also shows that it has entered the alarm state, indicating that the wireless intelligent sensor installed on the bed is in the alarm state.
[0129] For wireless multi-channel monitors including ink screen displays and LCD screen displays, the display screen can display the location where the alarm occurred in the ward, such as the bed, chair, toilet, ward door, door and window; the display screen can also display the working status of the wireless multi-channel monitor and the working status of multiple wireless intelligent sensors connected to it, including standby status, monitoring status, alarm status, pause status, wireless connection failure status and energy module voltage too low status; it can also display prompt information that the wireless intelligent sensor is about to end its life and needs to be replaced and prompt information that cleaning and disinfection are required, and it can also display prompt information of wireless connection failure of wireless intelligent sensors, wireless ward station adapters, and wireless alarm lights; among which, the cause of the wireless connection failure may be that the distance between the intelligent sensor, wireless ward station adapter, and wireless alarm light and the wireless multi-channel controller exceeds the range of the wireless signal, or it may be a failure; it can also display prompt information of connection failure of the connecting cable of the wired sensor, the connecting cable of the ward station, and the power adapter, which may be because the connecting cable was accidentally unplugged.
[0130] The help button can also provide the nurse with voice-broadcasted operation prompts, and can further provide the nurse with operation instructions and patient care instructions through the text and pictures on the display screen of the display screen, including the patient's various nursing items and nursing requirements, and can also include the patient's medical history information, diagnosis information, treatment information, medication information, as well as nursing plans, diagnosis plans, and treatment plans.
[0131] The wireless multi-channel controller may also include a microprocessor and a corresponding embedded program, an EEPROM storage unit, a wireless transceiver circuit, a voice input device, an operating device, an audible and visual alarm device, a voice playback device, an input and output interface device, an energy module, and a display unit may also include but is not limited to an ink screen display, a liquid crystal display, and an LED indicator, wherein the input and output interface device includes a relay drive circuit and a relay, and the microprocessor and the corresponding embedded program may control the relay contacts to close or open through the relay drive circuit, and a pair of relay contacts will be connected to the corresponding leads of the connecting cable of the ward station, and the ward station can be triggered to enter a call state or a reset state through the closing / opening of the relay contacts.
[0132] The wireless multi-channel monitor can be used as a wireless receiving host to wirelessly connect one or more wireless receiving devices as wireless receiving slaves, and establish the two-way wireless communication relationship to achieve the wireless connection; the wireless receiving host can send the received information data to one or more wireless receiving slaves through the two-way wireless communication to achieve information data synchronization between the wireless receiving host and the wireless receiving slaves; the wireless receiving slaves may include but are not limited to wireless ward station adapters and wireless alarm indicator lights. The wireless multi-channel monitor can also send information data to a wireless network server and various devices in the wireless network through a wireless network transmitter, which may include one or more nurse mobile wireless intelligent alarm information receiving terminals as wireless receiving slaves, corridor wireless intelligent alarm information display screens, nurse station wireless intelligent central alarm monitors, nurse station wireless intelligent alarm information display screens, medical staff / management personnel wireless intelligent alarm mobile phones with dedicated monitoring APPs, wireless intelligent alarm bracelets, and wireless intelligent alarm tablets. It can also include the hospital's local wireless network server, cloud server, remote care personnel wireless intelligent accompanying mobile phones with dedicated remote care APPs, wireless intelligent accompanying tablets, and wireless intelligent accompanying computers with dedicated remote care applications. It is also possible to send setting data, control data and voice data to the wireless multi-channel controller through various devices in the wireless network, and to transmit image data, voice and video data to each other.
[0133] The wireless receiving device as the wireless receiving slave can be connected to a pairing sensor. When the pairing sensor of the wireless receiving slave and the pairing signal field generator of the wireless receiving master are close to each other, the pairing sensor can sense the signal field generated by the pairing signal field generator and trigger the wireless receiving master and the wireless receiving slave to enter a pairing state or unpairing state.
[0134] The wireless ward intelligent voice monitor is based on the wireless multi-channel monitor, with the addition of a long-distance pickup microphone, voice recognition and voice control functions. When the patient needs to call for help, the voice call can have a specific keyword to activate the voice call function; for example, when the patient calls "Nancy" with voice, the voice recognition function can be automatically awakened, and the wireless ward intelligent voice monitor will play the voice "Do you need any help?" When the patient speaks out the service he needs by voice, the wireless ward intelligent voice monitor will identify the service the patient needs and convert it into text information data and send it to the wireless ward intelligent voice central monitor installed at the nurse station as a wireless receiving host. It can also be sent to one or more nurse mobile wireless intelligent alarm information receiving terminals as wireless receiving slaves, corridor wireless intelligent alarm information display screens, nurse station wireless intelligent central alarm monitors, nurse station wireless intelligent alarm information display screens, and medical staff / management personnel wireless intelligent alarm mobile phones with dedicated monitoring APPs, so that nursing staff can provide patients with the services or help they need; wherein the long-distance pickup microphone can also be integrated with the wireless ward intelligent voice monitor, or it can be a separate wireless microphone, which is connected to the wireless ward intelligent voice monitor through wireless communication; when the patient encounters an emergency, he can use voice to call HELP, which can automatically wake up the voice recognition function, and the wireless ward intelligent voice monitor will use voice to play "Do you need urgent help?". After the patient confirms, the wireless ward intelligent voice monitor sends the emergency help text message to the hospital wireless intelligent alarm information receiving network through the two-way wireless communication.
[0135] The wireless hospital and nursing home monitoring system also includes multiple wireless power transmission devices, wireless ward intelligent voice monitors, wireless intelligent central multi-channel AI intelligent monitors, wireless intelligent central medical equipment monitors, wireless intelligent room temperature and humidity sensors, wireless intelligent fireworks sensors, wireless intelligent water leakage sensors, wireless door and window wind and rain sensors, wireless intelligent door and window switches, wireless intelligent curtain machines, wireless intelligent door and window intrusion sensors, wireless intelligent surveillance cameras, wireless intelligent video intercom devices, and a variety of wireless intelligent transmitting devices including wireless intelligent ventilator transmitters, wireless intelligent physiological parameter monitor transmitters, wireless intelligent non-contact infrared body temperature sensors, wireless intelligent non-contact physiological parameter monitoring sensors, wireless intelligent blood oxygen saturation sensors, wireless intelligent urinary incontinence monitoring transmitters, wireless intelligent infusion machine transmitters, wireless intelligent patient bracelet positioning transmitters, wireless intelligent medical staff positioning transmitters, wireless intelligent medical supplies positioning transmitters, and wireless intelligent medical equipment adapters.
[0136] The wireless intelligent safety emergency call transmitter includes an emergency call switch and the wireless transmitting device. When the patient encounters an emergency, the patient can press the emergency call switch to call the nurse urgently; it can also include a fall detection sensor, which can be an acceleration sensor or an impact detection sensor, which can detect the patient falling to the ground; it can also add a long-distance pickup microphone and voice recognition and voice control functions. When the patient encounters an emergency, he can use voice to call HELP, which can automatically wake up the voice recognition function. The wireless intelligent safety emergency call transmitter will use voice to play "Do you need emergency help?". After the patient confirms, the wireless intelligent safety emergency call button sends the text message to the hospital wireless network server through the two-way wireless communication and pushes it to various related wireless intelligent alarm information receiving devices through the wireless network server.
[0137] In the implementation case of wireless intelligent security monitoring applied in hospital wards, a wireless security monitoring system for inpatients includes a wireless intelligent security monitor corresponding to the wireless receiving device, a wireless intelligent access control monitor and a variety of wireless intelligent sensors, including but not limited to wireless intelligent door and window sensors, wireless intelligent passive infrared sensors, wireless intelligent patient bracelet sensors, wireless intelligent patient baby foot ring sensors, wireless intelligent medical staff badge sensors and wireless intelligent security emergency call buttons carried by medical staff or patients, which are used by patients or medical staff to make emergency calls for help in the event of sudden security emergencies, and also include a wireless power transmission device; it can also include a wireless ward station adapter corresponding to the wireless receiving device installed near the ward station, referred to as NCR, which is connected to the input interface of the wireless ward station through a connecting cable.
[0138] The wireless intelligent access control monitor applied to hospital passage doors is used to monitor the hospital passage doors. When a patient or baby leaves the hospital's warning area without the accompaniment of medical staff, including the hospital passage doors or wards, there is an illegal intrusion, such as illegal opening of doors and windows, illegal hijacking, etc., and the alarm state is entered. The alarm sensor position is displayed through sound and light alarms, and the alarm information can also be sent to the hospital wireless network server through the two-way wireless communication and pushed to various related wireless intelligent alarm information receiving devices through the wireless network server.
[0139] When the wireless intelligent security monitor and wireless intelligent access control monitor detect a situation that requires an alarm, including a patient or infant leaving the hospital's warning area without the accompaniment of medical staff, including illegal intrusion into the hospital's passage doors or wards, such as illegal opening of doors and windows, illegal hijacking, etc., the alarm state is entered, and the location of the alarm sensor is displayed through sound and light alarms. The alarm information data can also be sent to the wireless medical alarm information receiving network, including nurse / security personnel mobile alarm information receiving terminals, corridor alarm information display screens, nurse station central alarm monitors, nurse station alarm information display screens, security room alarm information display screens, medical staff / management personnel smartphones, smart bracelets, tablets with dedicated monitoring APPs, and can also include the hospital's local wireless network server and cloud server.
[0140] The wireless multi-channel AI smart monitor can wirelessly connect to multiple wireless smart cameras, which are installed in multiple patient activity areas including but not limited to wards, observation rooms, infusion rooms, examination rooms, diagnosis and treatment rooms, elevators, corridors, passages, halls, and hospital passage entrances, including but not limited to beds, chairs, toilets, and ward door entrances. The wireless smart camera can use AI artificial intelligence to identify and monitor the patient's identity and condition, especially it can identify the patient's painful expression and gestures in an emergency and automatically call for help, and can also trigger a call for help by voice; when the patient leaves alone or enters an unauthorized area without the accompaniment of medical staff and triggers the wireless multi-channel AI smart monitor to enter an emergency alarm state.
[0141] The wireless multi-channel AI smart monitor can also automatically track the real-time location of medical staff in the hospital by recognizing their facial features. It can also be used for barcode recognition on various movable medical equipment and various movable assets and track the real-time location of medical equipment and assets.
[0142] The wireless multi-channel AI smart monitor can also be used as an AI smart security system to provide security services for hospitals and nursing homes. It can also identify the patient's identity through the patient's facial features and monitor the patient's emergency safety status, especially the status of infants and young children who lack self-protection ability or patients who are hijacked or coerced by illegal persons, and trigger the wireless multi-channel AI smart monitor to enter an emergency alarm state; in the emergency alarm state, the wireless multi-channel AI smart monitor can send the patient's location, name, and photo to the nurse's mobile alarm information receiving terminal, the corridor alarm information display screen, the nurse station central alarm monitor, and the nurse station alarm information display screen through the two-way wireless communication. It can also be sent to the medical staff / management personnel's smartphones, smart bracelets, and tablets with dedicated monitoring APPs, and can also include the hospital's local wireless network server and cloud server; it can also identify the identity of the hospital's medical staff and the relatives and accompanying personnel of the patient who have logged in and are allowed to enter the hospital through facial features, identify unauthorized persons who illegally enter the restricted area of the hospital, and trigger the wireless multi-channel AI smart monitor to enter an emergency alarm state.
[0143] The wireless ward station adapter includes a connecting cable for connecting to the ward station input port, and also includes a microprocessor and a corresponding embedded program, an EEPROM storage unit, a wireless transceiver circuit, an audio-visual alarm device, and may also include a display unit including but not limited to an ink screen display, a liquid crystal display, an LED indicator, an operating device, a voice playback device, an input-output interface device, and an energy module, wherein the input-output interface device includes a driving circuit for an LED lamp and a speaker, and the microprocessor and the corresponding embedded program can control the driving circuit of the LED lamp and the speaker to drive the LED lamp to emit light and flash, and the speaker to play an alarm prompt sound, and can also play a pre-recorded reminder voice to remind the patient not to leave the original position and wait for the nurse; the input-output interface device may also include a relay driving circuit and a ward station control relay, and the microprocessor and the corresponding embedded program can control the contact closure or opening of the ward station control relay through the relay driving circuit.
[0144] In the alarm state, the wireless ward station adapter has three relay output modes, the first is a continuous normally open or normally closed output mode; the second is a single pulse delayed normally open or normally closed output mode; the third is a pulse oscillation normally open or normally closed output mode; the normally open or normally closed output mode can be selected by the selection switch, and one of the three modes can be selected by the selection switch as the output mode of the relay; the selection switch can be a physical electronic switch or a virtual switch in the software.
[0145] The wireless ward station adapter includes multiple wireless channels and can be wirelessly connected to a wireless multi-channel controller. When the wireless multi-channel controller enters an alarm state, the two-way wireless communication can be used to trigger the wireless ward station adapter to enter an alarm state and trigger the ward station and nurse station systems to enter a call state. The wireless ward station adapter can be a wireless device with an independent housing and an independent energy module. It can be installed near the ward station. A pair of contacts of the ward station control electrical appliance is connected to the input interface of the ward station via a connecting cable. The wireless ward station adapter can also include an electric actuator with contacts. The electric actuator is controlled by the output contacts of the ward station control electrical appliance to perform a pressing action and release a pressing action. When the wireless ward station adapter enters a reset state, the contacts of the electric actuator can perform a pressing action. The contacts press the reset button of the ward station to trigger the ward station to enter a reset state from a call state. ; In the application of non-self-locking ward stations, a pair of contacts of the ward station control electrical appliance are connected to the input interface of the ward station through a connecting cable, and the ward station can be triggered to enter a call state or a reset state by closing / opening the relay contacts; in the application of self-locking ward stations, another pair of contacts of the ward station control relay can be connected in parallel with the reset button of the ward station through a connecting cable. When the wireless ward station adapter is reset, the ward station is also triggered to enter a reset state; the ward station can also be triggered to enter a reset state from a call state by pressing the reset button of the ward station through the contacts of the electric actuator with contacts.
[0146] The wireless alarm indicator light corresponds to the wireless receiving device and can be installed on the wall or ceiling of the corridor outside the ward to indicate the location of the ward where the alarm occurs to the nurse. It can also be installed on the wall or ceiling of the duty room of the nurse station and connected to the wireless multi-channel monitor wirelessly. When the wireless multi-channel monitor is in the monitoring state or the standby state, the status indicator light of the wireless alarm indicator light shows that it is in the monitoring state or the standby state. When the wireless multi-channel monitor enters the alarm state, the wireless alarm indicator light also enters the alarm state, and its alarm light flashes, and at the same time, an alarm sound can be emitted to indicate to the nurse that an alarm has occurred. The volume of the alarm can be adjusted by setting a selection switch, and the brightness of the alarm light can also be adjusted by setting a selection switch. The selection switch can be a physical electronic switch or a virtual switch in the software.
[0147] The wireless alarm indicator light includes a microprocessor and a corresponding embedded program, an EEPROM storage unit, a wireless transceiver circuit, and an audible and visual alarm device. It may also include a display unit including but not limited to an ink screen display, a liquid crystal display, an LED indicator, an operating device, a voice playback device, an input and output interface device, and an energy module, wherein the input and output interface device includes a driving circuit for an LED lamp and a speaker. The microprocessor and the corresponding embedded program can control the driving circuit of the LED lamp and the speaker to drive the LED lamp to emit light and flash, and the speaker to play an alarm prompt sound. The ward number and bed number where the alarm occurred can also be played by voice so that the nurse can obtain the alarm information through the sound, and the location where the alarm occurred in the ward can be displayed through the display screen, such as a bed, a chair, a toilet, a ward door, and doors and windows.
[0148] The wireless multi-channel monitor is connected to the wireless ward station adapter through two-way wireless communication, and can also be connected to the wireless alarm indicator light through two-way wireless communication; when the wireless multi-channel monitor detects that the patient leaves the original position including the bed, chair, and toilet alone, the wireless multi-channel monitor enters the alarm state and sends alarm information data to the wireless ward station adapter NCR. The wireless ward station adapter enters the alarm state after receiving the alarm information data through the microprocessor, the corresponding embedded program, and the wireless transceiver circuit, and displays the location of the alarm through its display unit, and controls the relay drive circuit of the input and output interface and the output contact of the relay to close, triggering the ward station to call the nurse station system to enter the call alarm state; the wireless ward station also A reminder voice can be recorded through the voice input device, and when the alarm state is entered, a recorded reminder voice can also be played at the same time to remind the patient not to leave the original position and wait for the nurse; when the nurse resets the wireless channel controller or the wireless multi-channel monitor by pressing the reset button and detects that the patient has returned to the original position, the reset instruction data is sent to the wireless ward station adapter NCR. After the wireless ward station adapter receives the alarm information data through the microprocessor, the corresponding embedded program and the wireless transceiver circuit, it enters the reset state, stops displaying the location where the alarm occurs through its display unit, stops playing the reminder voice, and at the same time controls the relay drive circuit of the input and output interface and the output contacts of the relay to be disconnected, triggering the ward station to call the nurse station system to enter the reset state.
[0149] The nurse mobile wireless intelligent alarm information receiving terminal is carried by the nurse and can provide the nurse with real-time alarm call information. It includes a microprocessor and a corresponding embedded program, an EEPROM storage unit, a wireless transceiver circuit, an audio-visual alarm device, and can also include a display unit including but not limited to an ink screen display, a liquid crystal display, an LED indicator, an operating device, a voice playback device, an input-output interface device, and an energy module, wherein the input-output interface device includes a driving circuit for an LED lamp and a speaker. The microprocessor and the corresponding embedded program can control the LED lamp to emit light and flash through the driving circuit of the LED lamp and the speaker, and the speaker plays an alarm prompt sound. The ward number, bed number, patient's name and the category of the alarm can also be played through voice, such as bed leaving alarm, emergency call, medical equipment alarm, patient fall, abnormal patient vital signs, so that the nurse can directly obtain the alarm information through sound, learn the urgency of the alarm, and provide a decision basis for the correct response action; the fault information in the ward, the information that the sensor needs to be replaced, and the information of cleaning and disinfecting the sensor can also be displayed through the display screen. The location of the wireless intelligent sensor that has failed in the ward can also be displayed through the display screen, such as a bed, a chair, a toilet, a floor, a ward door, and doors and windows.
[0150] Before the patient gets into bed, the microprocessor and wireless transmitter of the wireless smart bed pressure sensor are in a low-power standby state because the patient's weight cannot be detected. The LED status indicator of the multi-channel wireless monitor corresponding to the bed is off, indicating that the wireless smart bed pressure sensor is in a standby state. At this time, the two-way wireless communication between the wireless smart bed pressure sensor and the multi-channel wireless monitor is in a suspended state, and the wireless transceiver circuits of both are in a shutdown state. After the patient gets into bed, when the wireless smart pressure sensor can detect the patient's weight, it will automatically activate the wireless smart pressure sensor and the multi-channel wireless monitor to enter the monitoring state.
[0151] In the monitoring state, when the patient tries to stand up alone without help, the wireless pressure sensor can detect that the patient's weight is leaving the pressure sensing module in the central position and moving to the pressure sensing module at the edge of the bed until it completely leaves all the pressure sensing modules of the wireless pressure sensor. The wireless pressure sensor contains a microprocessor and a corresponding embedded program, which can collect signals from the pressure sensing module and analyze and judge through the embedded program, and then judge that the patient is leaving the bed or has left the bed. In this case, the wireless pressure sensor will send an alarm signal to the multi-channel wireless monitor through its wireless module, and the multi-channel wireless monitor will enter the alarm state. On its operation interface, there will be an LED indicator corresponding to the bed sensor flashing. If the wireless multi-channel monitor with an ink screen display or an LCD liquid crystal display is in the alarm state, the bed sensor can be displayed in the alarm state through the icon and text displayed on the display.
[0152] When the patient presses the wireless intelligent emergency call button, an alarm signal is transmitted to the multi-channel wireless monitor through its wireless module, and the multi-channel wireless monitor enters the alarm state. An LED indicator corresponding to the emergency call flashes on its operation interface. When the multi-channel wireless monitor enters the alarm state, it can also sound an alarm and play a pre-recorded voice prompt to remind the patient to stay in place and wait for the nurse. It can also send a call / alarm signal to the ward station through the wireless ward station adapter NCR or the connecting cable, and display the call / alarm in the ward through the wired nurse station system to remind the nurse to go to the nursing.
[0153] The multi-channel wireless monitor can also wirelessly connect to wireless smart floor mat sensors installed on the ground, wireless smart seat belt sensors installed on seats for patients who are prone to falls, and wireless smart urine moisture sensors installed on adult diapers or surgical pads for monitoring urinary incontinence patients. It can be used for moisture monitoring of adult diapers or urine pads.
[0154] The surface of the wireless intelligent floor mat sensor is completely flat and can be installed on the ground at the exit of the bed, or under the carpet or inside the carpet. When the patient gets off the bed and his feet touch the wireless intelligent floor mat sensor, the wireless intelligent floor mat sensor will send an alarm signal to the multi-channel wireless monitor through its wireless transmitter, and the multi-channel wireless monitor will enter the alarm state.
[0155] The wireless intelligent seat belt sensor is installed on the seat. It contains two seat belts with Velcro and unfastening handles, one of which has a switch trigger device, and the other has a control switch and a wireless transmitter connected to it.
[0156] When the seat belt is in the locked state, the switch trigger device and the control switch are in the engaged position, and the trigger control switch is in the closed state, which will automatically activate the wireless intelligent seat belt sensor and the multi-channel wireless monitor to enter the monitoring state.
[0157] When in use, two safety belts can be wrapped around the front of the patient's body to fix the patient sitting in the seat and keep him / her safe. The patient needs to open the safety belt by unfastening the handle to leave the seat; when the handle of the safety belt is opened, the switch trigger device is separated from the control switch, the control switch is disconnected and triggers the wireless transmitter, which sends an alarm signal to the multi-channel wireless monitor through its wireless module. The multi-channel wireless monitor enters the alarm state, and an LED indicator corresponding to the seat will flash on its operation interface.
[0158] The wireless intelligent seat belt sensor also includes an energy module, an emergency unlocking device and a set of installation accessories, which can be installed on a seat or a wheelchair. In an emergency, the patient can pull the unlocking handle hard. When the patient's pulling force is greater than the trigger tension threshold of the unlocking device, the emergency unlocking device can directly disengage and unfasten the seat belt. The trigger tension threshold of the emergency unlocking device is adjustable. It can also include a voice playback device. In non-emergency situations, when the patient opens the seat belt, a reminder voice will be played to remind the patient to stay in place and wait for the nurse's care. The Velcro on the two seat belts will stick to each other when in use. Together, when the patient opens the seat belt handle, he or she needs to continue to open the Velcro-bonded part of the seat belt to completely open the seat belt. This can slow down the speed at which the patient opens the seat belt, and gives the nurse more time to come to the ward for care. An electronic delay timer and an electromagnetic lock controlled by an electromagnet can also be used to realize the delay function of the Velcro. When in use, the two seat belts are locked by the electromagnetic lock and the buckle respectively, so that the seat belt cannot be opened. The patient needs to open the seat belt by unfastening the handle before leaving the seat. The delay length of the electronic timer can be adjusted as needed.
[0159] The switch trigger device and the control switch can be mechanical, relying on mechanical action to trigger the control switch to open and close, or can be magnetically controlled, relying on the magnetic field of the magnet to control the magnetic switch to open and close; the switch trigger device can select, for example, a variety of magnets that can generate magnetic fields, and the magnetic switch can select, for example, a reed switch or a Hall effect device; when the handle of the seat belt is opened, the magnetic trigger device is separated from the magnetic control switch, the magnetic control switch is disconnected and triggers the wireless transmitter, and transmits an alarm signal to the multi-channel wireless monitor through its wireless module, and the multi-channel wireless monitor enters an alarm state, and an LED indicator corresponding to the seat flashes on its operation interface; at the same time, the magnetic control switch will trigger an electronic timer for delay, and after the delay, the magnetic control switch will also control the electromagnetic lock to open the lock buckle, so that the two seat belts can be fully opened to allow the patient to leave the seat;
[0160] The wireless multi-channel monitor can also be wirelessly connected to a wireless safety button transmitter. The wireless receiving device will play a recording asking the patient whether he is safe at a fixed time period, for example, every 8 hours. The LED indicator of the wireless safety button transmitter flashes, requiring the patient to report safety through the wireless safety button transmitter. If the patient's safety report is not received, the wireless receiving device will remind the nurse to check on the patient; it can also be wirelessly connected to wireless LED lights installed at appropriate locations in the ward. When the wireless multi-channel monitor detects that the patient leaves the original position alone, including the bed, chair, and toilet, it will send a light-on command to the wireless LED light, and the wireless LED night light will turn on to provide lighting for the patient. When the wireless multi-channel monitor detects that the patient returns to the original position, it will send a light-off command to the wireless LEDed light, and the wireless LED light will turn off and stop providing lighting for the patient; the wireless multi-channel monitor can control multiple wireless LED lights, including an LED light for alarm, which can be installed on the wall outside the ward to indicate the room where the nurse has an alarm; it can also include an alarm LED light installed in the nurse station or the nurse duty room to indicate to the nurse that an alarm has occurred.
[0161] The wireless intelligent sensor can also include a wireless power socket adapter to provide power supply and control for the lighting switch in the ward; the wireless multi-channel monitor can be connected to the wireless hospital Internet of Things system after adding an optional wireless network interface board, and its prompt information and alarm information can be transmitted to a variety of wireless receiving devices through the wireless hospital Internet of Things, which can include several wireless intelligent mobile alarm information receiving terminals worn by multiple nurses, wireless intelligent corridor alarm information display screens, wireless intelligent nurse station central alarm monitors, and wireless intelligent nurse station alarm information display screens that are wirelessly connected to the wireless multi-channel monitor; the wireless multi-channel monitor can establish a wireless connection relationship with one to multiple wireless intelligent sensors through a pairing operation process, and can also cancel the wireless connection relationship with one to multiple wireless intelligent sensors through an unpairing operation.
[0162] When applied to bed monitoring, the wireless smart bed pressure sensor will be installed inside the mattress above the mattress in the middle of the bed or on the bed support frame of the bed, spanning the bed edges on both sides of the bed in the long direction of the sensor, covering the bed edge areas on both sides; the wireless smart bed pressure sensor is distributed with multiple independent pressure sensing sensor modules on the bed edge areas on both sides, wherein the bed edge areas on each side are sequentially distributed with multiple independent pressure sensing modules from the center of the bed to the edge areas of the bed at intervals, to ensure that for beds of different widths, there is always at least one independent pressure sensing sensor module distributed exactly on the bed edge areas on both sides; after the sensor is installed on the bed, the installer can press the pressure sensing modules in the areas of the edges of both sides of the bed with the palm of his hand, and the pressure sensing module corresponding to the collected pressure module signal is the pressure sensing module located exactly at the edge of the bed, thereby realizing the calibration of the bed edge position.
[0163] The wireless smart bed pressure sensor has multiple independent pressure sensing modules distributed in the central area of the bed, which is located exactly in the patient's buttocks area. It can also include multiple independent pressure sensing modules located in the back or head, and the entire sensor can be covered with a bed sheet and a mattress to prevent the patient from directly contacting the sensor, while the patient's weight can act on the sensor through the bed sheet and the mattress. By detecting the output signals of multiple pressure sensing modules located in different positions of the sensor, the position and posture of the human body can be determined, and it can be determined whether the human body is in a supine state, a side-lying state, or a sitting state. It can also be determined that the human body is moving from the middle of the bed to the edge of the bed, that the person has completely sat on the edge of the bed, has a tendency to leave the bed, and that the patient has completely left the bed, thereby realizing the behavior monitoring of the patient leaving the bed; when the patient leaves the bed alone without anyone to accompany him or has already left the bed, the wireless smart bed pressure sensor sends a wireless alarm signal to the wireless receiving device through the wireless transmitting device to notify the nurse to go to care, so as to prevent the patient from getting up on his own and falling.
[0164] Based on the signals from multiple pressure sensor modules distributed in different parts of the bed, the patient's position, body position, sleeping posture on the bed, and whether the patient has turned over or changed position within a set time period can be determined, thereby monitoring the patient's sleeping position. When the patient stays in the same sleeping position for a long time, the nurse can be reminded to assist the patient in turning over. This is an effective means of preventing bedsores for patients who are bedridden for a long time and are at risk of developing bedsores.
[0165] The wireless smart bed pressure sensor in the present invention is made of soft material and has a completely flat surface; the wireless smart bed pressure sensor can be installed between the bed sheet, the mattress and the mattress. It is made of soft and breathable material, which can maximize the avoidance of the foreign body sensation generated by the patient when lying on the bed, and keep the patient's skin dry and breathable; in particular, the wireless smart bed pressure sensor can be integrated into the inside of the mattress or the inside of the mattress to become a wireless smart pressure sensing integrated mattress or a wireless smart pressure sensing integrated mattress, which can maximize the avoidance of the impact of the sensor on the patient's comfort, especially the wireless smart pressure sensing integrated mattress can hardly even feel any adverse effects of the sensor.
[0166] The wireless intelligent pressure sensor can also be integrated into a wireless intelligent pressure sensing bed cover, which includes an inner cover and an outer cover made of textiles, and an elastic pad inside the bed cover made of soft, breathable and elastic foaming materials including but not limited to foam sponge, memory sponge, artificial cotton, latex pad, and natural cotton pad, and the pressure sensing module and a wireless transmitting device, wherein the pressure sensing module is located below the elastic pad inside the bed cover, between the outer cover and the outer cover at the upper surface of the mattress, and the wireless transmitting device is located at the corners or sides of the bed cover; the upper part of the bed cover can completely wrap the upper surface and the sides of the hospital bed mattress and the surrounding areas of the back of the mattress; the pressure sensor body can be a soft and breathable structure, or it can be made of pressure sensing fiber; the wireless intelligent pressure sensor can also be integrated into a wireless intelligent seat pressure sensing seat cover.
[0167] When used for monitoring seats and wheelchairs, the wireless intelligent seat pressure sensor includes one to more pressure sensing modules located on the buttocks, which will be installed on the surface of the seat cushion, just at the position of the patient's buttocks. In order to detect the patient's intention to get up and send an early warning to the nurse, it can also include two independent armrest pressure sensing modules installed on the armrests of the seat or two independent wireless intelligent armrest pressure sensors. The wireless intelligent armrest pressure sensor includes an armrest pressure sensing module; the wireless intelligent seat pressure sensor can also be integrated into the inside of the seat cushion, the inside of the chair cushion, the inside of the chair cushion support plate, and the outside or inside of the armrest of the seat; the wireless intelligent armrest pressure sensor can be integrated into the outside or inside of the armrest of the seat, wheelchair, or toilet additional support frame.
[0168] When applied to the monitoring of hospital beds, seats, wheelchairs, and toilets, a wireless intelligent ground pressure sensor with an early warning function can also be used. The wireless intelligent ground pressure sensor can be installed on the ground in front of the hospital beds, seats, wheelchairs, and toilet exits. When the patient tries to get off the bed, the patient's feet will contact the wireless intelligent ground pressure sensor, and the sensor body will sense the pressure generated by the patient's feet and send a wireless alarm signal to the wireless receiving device through the wireless transmitting device.
[0169] When the patient sits on a chair, wheelchair or toilet, his feet are in the central area of the sensing area of the wireless intelligent ground pressure sensor. The sensor body senses the pressure changes generated by the patient's weight through the feet and sends a wireless alarm signal to the wireless receiving device through the wireless transmitting device.
[0170] The pressure sensing module of the armrest can be a low-sensitivity pressure switch sensing module. When the patient's upper limbs lean on the armrests, the pressure sensing module of the chair armrests will not be triggered to output a zero (OFF) signal. When the patient is ready to leave the chair, the patient's hands will exert an additional supporting force on the chair armrests to assist the patient in getting up. The pressure sensing modules of the chair armrests on both sides can sense this additional supporting force at the same time and output a 1 (ON) signal. By detecting the output signal of the pressure sensing module of the sensor, it is possible to determine whether the patient is sitting on the chair, getting up from the chair, or has already left the chair. When the patient leaves the chair alone without anyone to accompany him, the wireless receiving device will notify the nurse to go to the hospital for care to prevent the patient from getting up on his own and falling.
[0171] If only the chair armrest pressure sensing module on one side senses a larger pressure and outputs a 1 (ON) signal, it is not determined that the patient intends to get up.
[0172] The pressure sensing module of the armrest can also be a pressure sensing module with an analog output signal. The analog output signal is directly proportional to the pressure exerted on the armrest pressure sensing module. The greater the pressure exerted on the armrest pressure sensing module, the higher the analog signal output voltage.
[0173] When used for toilet monitoring, the wireless smart toilet pressure sensor will be installed under the toilet seat or on the toilet seat. A urine collector can also be attached to collect urine samples from patients for urination testing. When the patient is sitting on a chair, the output signal of the pressure sensing module of the toilet sensor can be detected to determine whether the patient is sitting on the toilet or has left the toilet. When the patient leaves the toilet alone without anyone to accompany him, the wireless receiving device will notify the nurse to go and take care of him, so as to prevent the patient from getting up on his own and falling.
[0174] When applied to the monitoring of hospital beds, chairs, wheelchairs, and toilets, in order to detect the patient's intention to get up and send an early warning to the nurse in time, a wireless intelligent ground pressure sensor installed on the ground can be used. The wireless intelligent ground pressure sensor can be installed on the ground in front of the exit of the hospital bed, bedside chair, wheelchair, and toilet. When the patient sits on the chair, his feet are in the central area of the sensing area of the wireless intelligent ground pressure sensor.
[0175] The wireless intelligent pressure sensor also includes an air bag, which is encapsulated by the upper skin layer and the lower skin layer to form a completely sealed and waterproof whole. The completely sealed and waterproof sensor can prevent the patient's body fluid from penetrating into the interior of the sensor.
[0176] There is an air channel between the airbag and the sensor body. When the sensor body is compressed by the patient's weight, the air in the sensor body can be transported to the airbag to avoid the sensitivity of the sensor being affected by excessive air pressure inside the sensor due to the sealing structure. The completely sealed and waterproof sensor can prevent the patient's body fluids from penetrating into the interior of the sensor.
[0177] The wireless multi-channel monitor can establish a wireless connection relationship with one or more wireless smart sensors through a pairing operation process, and can also cancel the wireless connection relationship with one or more wireless smart sensors through an unpairing operation; the wireless smart sensors include but are not limited to wireless smart bed monitoring sensors, wireless smart chair seat monitoring sensors, and wireless smart toilet monitoring sensors.
[0178] A magnetically controlled power switch can be added to allow the controller to exit the monitoring state and enter the shutdown state or standby state. The external battery pack is located outside the controller housing and can be connected to the controller through a connector and provide power supply. The external battery pack can be designed as a removable / replaceable structure, integrated into the wall mounting backplane that provides fixing and mounting for the controller, and can be quickly replaced. The external battery pack can be a dry cell, a storage battery, or a fuel cell.
[0179] The wireless receiving device and the wireless transmitting device also include a PCB built-in antenna and an external antenna, which can be integrated with the housing.
[0180] The wireless intelligent sensing system may also include a wireless power transmission device and a wireless power receiving device, wherein the wireless power receiving device is connected to the energy module, wherein the energy module includes a small-capacity battery or an energy storage capacitor and a wireless power receiving device; the energy module may also include the wireless power receiving device, a rechargeable battery, a non-rechargeable battery, and a large-capacity capacitor, such as a farad capacitor; and may also include a charging circuit and a wired / wireless charger.
[0181] The advantage of the present invention is that it can significantly reduce the adverse effects of the electromagnetic environment caused by wireless power supply on the bodies of people in the environment. For example, when the wireless power transmission device enters the standby state, the directional power transmission antenna radiates an intermittent pulse electromagnetic wave field strength of a low power density vector, and the average number of its electromagnetic wave field strength can be lower than the average number of the electromagnetic wave field strength radiated by the Bluetooth headset; when the wireless power transmission device enters the wireless power transmission state, the wireless power supply device can adjust the value of the electromagnetic wave field strength of the low power density vector radiated by the directional power transmission antenna according to the output voltage value of the wireless power receiving device, thereby ensuring that the output voltage value of the wireless power receiving device is maintained at its set value, and when the load current of the wireless power receiving device increases, its output voltage value can still be maintained at its set value.
[0182] The wireless power receiving device includes a resonant circuit, a rectifier circuit, a smoothing capacitor, and a voltage stabilization output circuit connected in sequence to a power receiving antenna, and also includes two voltage comparators, a first voltage comparator and a second voltage comparator, or an A / D converter.
[0183] The first voltage comparator is used to detect whether the wireless power receiving device is inside the power transmission space area. One of its input ends is connected to the output end of the induction voltage reference source. The output voltage value of the induction voltage reference source corresponds to the voltage value of the voltage-stabilizing output circuit at the outer boundary of the power transmission space. The other input end of the voltage comparator is connected to the input end of the voltage-stabilizing output circuit, which corresponds to the output voltage of the resonant induced alternating current after rectification, filtering and smoothing by the rectification circuit and the smoothing capacitor.
[0184] When the wireless power receiving device gradually enters the transmission space area of the wireless power transmitting device, the power receiving antenna can sense and receive the electromagnetic waves and form resonance with the resonant circuit to generate resonant induced alternating current. The output voltage after rectification, filtering and smoothing by the rectifier circuit and the smoothing capacitor also gradually increases. When the output voltage of the output end of the first voltage comparator changes from 0 to 1, it indicates that the wireless power receiving device has entered the transmission space area of the wireless power transmitting device.
[0185] When the power receiving antenna gradually moves away from the power transmission space area, the resonant induced electrical signal gradually becomes a relatively low signal strength, and the output voltage of the resonant induced alternating current after rectification, filtering and smoothing by the rectifier circuit and the smoothing capacitor also gradually decreases. When this voltage is lower than the voltage of the induced voltage reference source, the output of the voltage comparator changes from 1 to 0, indicating that the power receiving antenna has left the power transmission space area.
[0186] The second comparator is used to detect whether the output voltage of the wireless power receiving device reaches a set value. One of its input terminals is connected to the output terminal of the output voltage reference source. The output voltage of the output voltage reference source corresponds to the set output voltage value of the wireless power receiving device. The other input terminal of the voltage comparator is connected to the output terminal of the voltage stabilizing output circuit. When the output voltage of the voltage stabilizing output circuit is lower than the output voltage of the output voltage reference source, the output of the second comparator is 0, indicating that the output power of the wireless power receiving device cannot meet the power supply demand of its load. When the output voltage of the voltage stabilizing output circuit is higher than the output voltage of the output voltage reference source, the output of the second comparator is 1, indicating that the output power of the wireless power receiving device can meet the power supply demand of its load.
[0187] The wireless power receiving device also includes a microprocessor and a corresponding embedded program, an EEPROM storage unit storing an ID code of the wireless power receiving device, a set value of an output voltage of the wireless power receiving device, a wireless transceiver circuit, and a wireless transceiver antenna.
[0188] The wireless power transmission device also includes one or more wireless directional power transmission antennas, a microprocessor and a corresponding embedded program, an EEPROM storage unit, a wireless transceiver circuit, a wireless transceiver antenna, a radio frequency power controller, a radio frequency power amplifier, a radio frequency power remote control receiver, and a remote control. The wireless power transmission device also includes an energy conversion providing device, wherein the radio frequency power controller can control the output power of the radio frequency power amplifier, and the radio frequency power amplifier can generate and output continuous alternating current of a constant frequency; the maximum output power of the wireless power transmission device can be controlled and adjusted by the remote control and the radio frequency power remote control receiver.
[0189] The wireless power transmission device is connected to an AC power source, including but not limited to an AC power socket. The wireless power transmission device also includes an energy conversion providing device, which is connected to the directional power transmission antenna and can convert the AC power obtained from the AC power socket into radio frequency AC power and provide it to the directional power transmission antenna to radiate the electromagnetic waves.
[0190] The wireless power transmission device includes a power transmission antenna, which can radiate continuous electromagnetic waves of a constant frequency and can form an electromagnetic wave field strength distribution with a certain power density vector in a power transmission space area; the power transmission space area is a conical space area distributed along the vector axis direction; wherein the power density of the electromagnetic waves at the power transmission antenna in the axial space along the vector axis direction is the largest, and gradually attenuates as the distance from the power transmission antenna increases, and in other vector axis directions that form an angle with the vector axis, the power density value of the electromagnetic waves at the power transmission antenna is lower than the power density value of the electromagnetic waves at the power transmission antenna in the axial space along the vector axis direction, and gradually attenuates as the distance from the power transmission antenna increases.
[0191] The power transmission space area is characterized in that it is a conical space with the vector axis of the directional power transmission antenna as the axis center and the directional power transmission antenna as the origin. There is an electromagnetic wave field strength distribution with a certain power density vector in this space area, and the power of the electromagnetic wave can meet the output voltage and output current requirements of the wireless power receiving device in this space area.
[0192] Its working principle is that when the power receiving antenna gradually moves away from the power transmission space area, the resonant induced electrical signal gradually becomes a relatively low signal strength, so that the output of the first voltage comparator changes from 1 to 0, and the wireless transceiver circuit of the wireless power receiving device sends the data information representing the ID code of the wireless power receiving device and the output 0 of the first voltage comparator that represents the leaving of the power transmission space area to the wireless transceiver circuit of the wireless power transmitting device, informing the wireless power transmitting device that it has left the power transmission space area.
[0193] The power transmission space area allows multiple wireless power receiving devices to receive wireless power transmission at the same time. When all the wireless power receiving devices leave the power transmission space area, the wireless power transmission device enters a standby state and stops radiating electromagnetic wave field strength distributed in the specific power transmission space area through the directional power transmission antenna; when in the standby state, the wireless power transmission device transmits a low-power wireless communication signal at a fixed period through the wireless transceiver circuit of the wireless power transmission device, and the wireless signal receiving range of the wireless communication signal is slightly larger than the power transmission space area.
[0194] When the power receiving device enters the radio signal receiving range, its wireless transceiver circuit can receive the low-power wireless communication signal transmitted by the wireless transceiver circuit of the wireless power transmitting device at a fixed period, the wireless power receiving device also includes a microprocessor and a corresponding embedded program to control the wireless transceiver circuit of the wireless power receiving device to send the ID code of the wireless power receiving device to the wireless transceiver circuit of the wireless power transmitting device, and notify the wireless power transmitting device to exit the standby state and enter the working state, thereby generating the power transmission space area; as long as the ID code of any wireless power receiving device is received, the wireless power transmitting device enters the working state, and the microprocessor and the corresponding embedded program of the wireless power transmitting device control the radio frequency signal generator and the radio frequency power controller to adjust the radio frequency power amplifier to output a continuous alternating current of a constant frequency with a certain output power, and then the directional power transmission antenna radiates an electromagnetic wave field strength with a certain power density vector distributed in the specific power transmission space area, thereby generating the transmission space area.
[0195] When the wireless power transmission device enters the wireless power transmission state, the wireless power supply device can adjust the magnitude of the electromagnetic wave field strength value of the power density vector radiated by the directional power transmission antenna according to the output voltage value of the wireless power receiving device, thereby ensuring that the output voltage value of the wireless power receiving device is maintained at its set value, and when the load current of the wireless power receiving device increases, its output voltage value can still be maintained at its set value.
[0196] The implementation process is as follows: when the output of the second comparator is 0, an instruction including a request to increase the wireless output power is sent to the wireless transceiver circuit of the wireless power transmitting device through the wireless transceiver circuit of the wireless power receiving device. After receiving the instruction to increase the wireless output power, the microprocessor of the wireless power transmitting device and the corresponding embedded program control the RF power controller to control the RF power amplifier to gradually increase the output power in a step-by-step manner, and then the directional power transmission antenna radiates the electromagnetic wave field intensity of the increased power density vector distributed in the specific power transmission space area. This cycle can be repeated until the output of the second comparator is 1, and the wireless output power at this time is maintained.
[0197] In this way, it can be ensured that when the multiple wireless power receiving devices in the power transmission space area receive wireless power transmission, each wireless power receiving device can receive sufficient electromagnetic wave field strength, and it can be ensured that the output voltage value of each wireless power receiving device in the power transmission space area is maintained at its set value, and when the load current of the wireless power receiving device increases, its output voltage value can still be maintained at its set value, so as to meet the power supply demand of the energy device; the wireless power transmission device also includes a maximum power transmission power. When the wireless power transmission device outputs at the maximum power transmission power, if the output of the second comparator is still 0, an audible and visual alarm prompt is issued, and at the same time, a prompt information is transmitted to the wireless receiving device through its wireless transceiver circuit to notify the staff that the wireless power receiving device and the wireless power transmission device need to be checked.
[0198] The center frequencies of the power receiving antenna, the resonant circuit, and the power transmitting antenna are consistent. The power receiving antenna can sense and receive the electromagnetic wave, and resonate with the resonant circuit to generate resonant induced alternating current, and power and charge the wireless transmitting device and the wireless receiving device through the energy module; wherein, the power transmitting antenna and the power receiving antenna can realize non-contact space energy transmission within a certain spatial distance range with air as the transmission medium, and use the electromagnetic wave as a carrier to provide power supply to the energy module through the power receiving antenna and the resonant circuit; the resonant circuit also includes an automatic tuning circuit and a phase-locked loop circuit, which can produce a resonance effect with the electromagnetic wave; the automatic adjustment circuit can monitor the center frequency of the electromagnetic wave, and automatically adjust the center frequency of the resonant circuit through the automatic tuning circuit to keep the two consistent; the phase-locked loop circuit can monitor the phase of the electromagnetic wave, and automatically adjust and lock the phase of the electromagnetic wave.
[0199] The transmission antenna includes but is not limited to an omnidirectional transmission antenna and a directional transmission antenna. The directional transmission antenna can radiate an electromagnetic wave beam along a specific vector axis, and under the condition of the same radiation power, there is a higher power flow density vector in the space area covered by the electromagnetic beam.
[0200] The directional power transmission antenna may include a direction adjustment mechanism of an electric actuator, which can adjust the direction of the vector axis within a conical angular space range; the directional power transmission antenna may include a direction adjustment mechanism of an electric actuator, which can adjust the direction of the vector axis within a conical angular space range; the wireless power transmission device may also include a plurality of the directional power transmission antennas installed at different positions, each of which can set the direction of the vector axis.
[0201] The wireless power transmission device can also adjust the direction of the vector axis so that the intensity of the resonant induced electrical signal reaches a maximum value.
[0202] The wireless power transmission device may further include a plurality of the directional power transmission antennas, each of which may form a specific spatial region with a sufficient power flow density vector distribution in a specific direction, and each of the specific spatial regions may provide electrical energy to one or more of the energy modules through one or more of the power receiving antennas located in the specific spatial region, and may provide electrical energy to one or more of the wireless transmitting devices and the wireless receiving devices respectively.
[0203] By distributing the spatial positions of the multiple directional power transmission antennas and setting the specific directions, sufficient power flow density vector spaces radiated from the multiple directional power transmission antennas can be superimposed on each other to form an overlapping spatial area, and multiple power flow density vectors in the overlapping spatial area are superimposed on each other to produce a higher power density vector.
[0204] When the power receiving antenna is in a wireless power supply space area covered by an electromagnetic wave beam with sufficient power density vector radiated by one or more directional power transmission antennas, and the distance between the directional power transmission antenna and the power receiving antenna is less than the minimum power supply distance, the power receiving antenna can sense and receive the electromagnetic wave with sufficient power density vector, and generate the resonant induction signal with sufficient output power, which is converted into direct current power with sufficient output power through the energy conversion circuit, and can be supplied to the energy modules of the wireless transmitting device and the wireless receiving device respectively, so as to realize the spatial transmission of electric energy.
[0205] A wireless space power transmission system for providing wireless power transmission in hospital buildings includes one to multiple wireless power transmission devices and one to multiple wireless power receiving devices. The wireless power transmission device may include a directional power transmission antenna that can radiate an electromagnetic wave beam with a sufficient power density vector in a spatial area in the pointing direction of the directional power transmission antenna; it may also include multiple power transmission antennas that can be installed at multiple locations in the building respectively, and can power one to multiple wireless power transmission devices through an AC power line above the ceiling, or through a power adapter connected to an AC power source, and then the output DC power line of the power adapter can power one to multiple wireless power transmission devices. In particular, the wireless power transmission device can be installed above the ceiling in the hospital building, the wireless directional power transmission antenna can be installed above or below the ceiling, or the wireless directional power transmission antenna can be made into one with the ceiling or lighting, or the wireless directional power transmission antenna can be installed inside or outside of various decorative materials, decorative structures, and various furniture, including but not limited to the ceiling and various accessories installed on the ceiling, wall panels, walls, various accessories installed on the wall, floors, skirtings, decorative parts, beds, sofas, chairs, and toilets; the wireless directional power transmission antenna can also be made into one with the wall panels. The wireless directional power transmission antenna faces the bottom of the ceiling and forms a wireless power transmission area in the space below, which can supply power to one or more wireless power receiving devices in the wireless power transmission area; the wireless power receiving device can be made into an independent wireless power receiving adapter to supply power to various electronic products including mobile phones, or the wireless power receiving device can be integrated into the interior of various electronic products including mobile phones to supply power to their power systems.
[0206] The multiple directional power transmission antennas can radiate multiple electromagnetic wave beams, and can form multiple wireless power supply space areas or wireless charging space areas covered by electromagnetic wave beams with sufficient power density vectors; wherein, when the set output voltage of the wireless power receiving device decreases due to the increase in load current, the output power of the wireless power transmission device can be automatically adjusted to adjust the power size data of the electromagnetic wave of the constant frequency, and the direction of the vector axis of the directional power transmission antenna can be adjusted to align it with the power receiving antenna of the power receiving device, so that the set output voltage of the wireless power receiving device remains basically unchanged.
[0207] When the output power of the wireless power receiving device is relatively small, the output power of the wireless power transmitting device is correspondingly reduced; when the output power of the resonant induction alternating current is relatively large, the output power of the wireless power transmitting device is correspondingly increased.
[0208] The multiple wireless power supply space areas are distributed in multiple space areas in the building that need electricity, including but not limited to corridors and rooms, and can provide power supply for the wireless transmitting device and the wireless receiving device in these space areas, wherein the wireless power supply device and the wireless power transmission antenna can be installed in the interior, exterior, and surrounding locations of facilities including but not limited to ceilings, floors, carpets, walls, hospital beds, chairs, toilets, bedside tables, door frames, etc., and also include the interior, exterior, and surrounding locations of mattresses and chair cushions; wherein the energy module is located in the wireless power supply space area or the charging space area of the wireless power transmission antenna.
[0209] It can also be installed in a portable wireless power supply device, and can provide power to multiple wireless power supply devices through an AC power line, providing power supply to the energy module in a concealed manner; it can also provide power through power generation devices including but not limited to solar energy, wind energy, chemical energy, geothermal energy, etc.; it can also provide power to multiple wireless power supply devices including the portable wireless power supply device through a large-capacity rechargeable battery pack, and the large-capacity rechargeable battery pack can be installed on the portable wireless power supply device, and can be a removable and replaceable rechargeable battery pack. When the output voltage of the rechargeable battery pack is too low due to power consumption, it can be charged again at a dedicated charging station.
[0210] The energy module may include a non-rechargeable battery, a rechargeable battery, or a large-capacity capacitor; the energy module may be integrated with the wireless transmitting device and the wireless receiving device, or may be separate; the energy module may also be used as a wireless power adapter to provide power supply, including power supply and charging, for devices including mobile phones, tablets, mobile medical devices, and equipment.
[0211] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.
[0212] The above is a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or substitutions within the technical scope disclosed by the present invention, and these modifications or substitutions should be included in the protection scope of the present invention.
Claims
1. A wireless intelligent sensing system, characterized in that: The wireless intelligent sensing system comprises: A wireless intelligent sensor and a wireless receiving device are connected in communication; the wireless intelligent sensor monitors the patient's condition, and when a dangerous condition occurs, it can send the patient ID and alarm category information to the wireless receiving device, and the wireless receiving device displays the alarm prompt information including location information, patient risk level data, and alarm category information; The wireless intelligent sensor comprises a sensor body and a wireless transmitting device connected thereto, wherein the wireless transmitting device and the wireless receiving device are respectively connected to respective energy modules; The wireless transmitting device and the wireless receiving device are connected via two-way wireless communication, and can mutually transmit information via the two-way wireless communication, including but not limited to text information, image information, sound information, setting or control information; The wireless transmitting device is connected to the pairing sensor, and the wireless receiving device includes a pairing signal field generator; The two parties of wireless pairing include the wireless transmitting device and the wireless receiving device, and the pairing process includes the pairing sensor and the pairing signal field generator approaching each other, the pairing sensor can sense the signal field generated by the pairing signal field generator, and trigger the wireless transmitting device to enter the pairing state; The intensity of the signal field may be constant or variable; The sensor body includes but is not limited to a pressure sensor body. The pressure sensor body, the wireless transmitting device, the energy module of the wireless transmitting device, and the paired sensor are encapsulated in a complete whole through the upper skin layer and the bottom skin layer of the pressure sensor body to form a wireless intelligent pressure sensor. When the wireless intelligent pressure sensor is placed flat on a horizontal plane, its upper surface is a flat surface.
2. The wireless intelligent sensing system according to claim 1, characterized in that: The dangerous state includes but is not limited to dangerous position state, body position state, physiological state, emergency state including falling and emergency call for help, and different danger levels of the dangerous state correspond to different categories of the alarm category information, including but not limited to prompt, warning, alarm, emergency alarm; The pairing process also includes the wireless transceiver circuit of the wireless receiving device being in a power-on state or an intermittent power-on state, the wireless transmitting device transmitting a wireless pairing signal after entering the pairing state, which may include a device category code and a device life code of the wireless transmitting device, the wireless receiving device entering a pairing state after receiving the wireless pairing signal, transmitting a wireless pairing response signal, which may include a patient ID and an ID of the wireless receiving device, and the two paired parties establishing the wireless connection; If, before pairing, the wireless transmitting device to which the wireless receiving device has been wirelessly connected has the same device category code as the wireless transmitting device in the pairing state, disconnecting the existing wireless connection; Furthermore, the wireless receiving device may also be connected to the pairing sensor. When in a non-pairing state, the wireless transceiver circuit thereof may be in a power-off state or a standby state. When the pairing sensor detects the pairing signal field, the wireless receiving device may be triggered to enter a pairing state, and the wireless transceiver circuit thereof may enter a power-on state or an intermittent power-on state. One of the wireless receiving devices can be used as a wireless receiving host to wirelessly connect to one or more of the wireless receiving devices as wireless receiving slaves and establish the wireless connection; The wireless receiving host can send the received information data to one or more wireless receiving slaves through the two-way wireless communication to achieve information data synchronization between the wireless receiving host and the wireless receiving slaves; wherein the wireless receiving host may include the wireless transmitting device, and the wireless receiving slave may include the wireless receiving device; The wireless connection may also include that the wireless transmitting device also transmits the patient's information at a set time period, which may include physiological parameter information, patient status information, posture information, location information, voice information, and may also include image information and video information processed by AI; If the wireless receiving device cannot receive the patient's information after exceeding the set time period, the wireless receiving device sends a wireless connection abnormality prompt message; The wireless communication parameters are the radio communication parameters used by the two-way wireless communication, including but not limited to the radio working frequency band, the radio working frequency point, the radio communication bandwidth, the radio communication modulation mode, the wireless communication baud rate, the wireless transmission power, and the wireless receiving sensitivity; the wireless communication parameters can be set and modified; When in the monitoring state, the microprocessor of the wireless intelligent sensor collects the signal of the sensor body through the input circuit and analyzes and judges it through the embedded program; If the signal of the sensor body does not change, continue monitoring; If the signal of the sensor body changes, the embedded program performs delay processing according to the alarm delay time parameter, and after the delay is completed, it is determined again whether the patient's body position has changed dangerously. If the patient's body position has not changed dangerously, the monitoring continues; If the patient's body position changes dangerously, the wireless receiving device will send an alarm prompt message to remind the nurse to go to the hospital for care; the wireless receiving device can also play a prompt voice through the voice playing device to remind the patient not to leave the bed and wait for the nurse to come; The dangerous changes include but are not limited to the following situations of the patient: sitting on the edge of the bed and about to leave the bed, already leaving the bed, abnormal physiological state, falling down, painful expression, voice calling for help, gesture calling for help, leaving the limited location or area, each of which can correspond to a different category of the alarm category information; When the patient returns to the bed, the alarm of the wireless transmitting device can reset the alarm of the wireless intelligent sensor system; the alarm of the wireless intelligent sensor system can also be reset by the wireless receiving device; One or more of the wireless intelligent sensors can be wirelessly connected to one or more of the wireless receiving devices to form the wireless intelligent sensing system, wherein the wireless communication parameters include a plurality of initial wireless operating frequency bands and a plurality of initial wireless operating frequency points, and the wireless transmitting devices in the wireless intelligent sensing system can be set to different initial wireless operating frequency points, and the initial wireless operating frequency points can be set through the two-way wireless communication; The wireless transmitting device and the wireless receiving device first use the initial wireless working frequency point to perform the two-way wireless communication; when the initial wireless working frequency point has radio interference causing the two-way wireless communication to fail to work properly, the wireless transmitting device and the wireless receiving device can both modify the initial wireless working frequency point according to a preset algorithm or protocol and temporarily use any one of the wireless working frequencies point to perform the two-way wireless communication; when the radio interference that appears at the initial wireless working frequency point disappears, the wireless transmitting device and the wireless receiving device can both resume using the initial wireless working frequency point to perform the two-way wireless communication; The wireless receiving device monitors the two-way wireless communication through the corresponding embedded program and automatically corrects the abnormality of the wireless communication; The monitoring of the two-way wireless communication includes comparing the information data sent by the wireless transmitting device with the information data received by the wireless receiving device, monitoring the information transmission delay time, monitoring the transmission rate, monitoring the bit error rate, monitoring the wireless communication channel, and monitoring the wireless signal field strength; The wireless communication anomaly includes but is not limited to the inconsistency between the information data received by the two-way wireless communication and the information data sent, and the information transmission delay time and the bit error rate are greater than the set value; the information transmission delay time is the difference between the value of the time point when the information data is started to be sent and the value of the time point when the information data is received; The automatic correction process involves the embedded software, the dedicated software of the local server, and the dedicated software of the cloud server, and the wireless communication parameters are dynamically optimized and adjusted through the algorithms in these software, including artificial intelligence algorithms, and the two-way wireless communication is performed again with the adjusted wireless communication parameters until the wireless communication anomaly disappears; It is also possible to monitor the wireless signal strength and monitor and analyze the wireless communication anomalies on a local server or a cloud server, and find optimization countermeasures based on the actual wireless signal strength and the radio interference that occurs, including optimizing and adjusting the wireless communication parameters of the wireless intelligent sensor system and the wireless communication parameters of the wireless intelligent sensor network system, and adjusting the installation positions of the wireless transmitting device and the wireless receiving device, as well as their respective antenna positions and directions through manual intervention, so as to improve the power density of the actual signal received by the antennas of both parties in the two-way wireless communication, thereby improving the gain value of radio transmission and reception, avoiding radio interference, and achieving the purpose of continuously optimizing the stability and reliability of the two-way wireless communication; The wireless intelligent sensor system may also include a wireless power transmission device and a wireless power receiving device, wherein the wireless power receiving device is connected to the energy module, the energy module may include a battery or an energy storage capacitor, and the wireless power receiving device includes but is not limited to a power receiving antenna and a resonant circuit connected thereto; The wireless power transmission device comprises a power transmission antenna, which can radiate electromagnetic waves to form a specific power transmission space area where the electromagnetic waves are distributed with sufficient power density vectors; When the power receiving antenna is located in the power transmission space, the resonant induced electrical signal has sufficient output power; The center frequencies of the power receiving antenna, the resonant circuit, and the power transmission antenna are consistent. The power receiving antenna can sense and receive the electromagnetic waves, and form resonance with the resonant circuit to generate resonant induced alternating current, and power the wireless transmitting device and the wireless receiving device or charge the energy module through the rectifier circuit and the energy module; wherein the power transmission antenna and the power receiving antenna can realize non-contact space energy transmission within a certain spatial distance range with air as the transmission medium, and use the electromagnetic waves as the carrier to provide power supply to the energy module through the power receiving antenna and the resonant circuit; The wireless power transmission device may include a directional power transmission antenna, which can radiate an electromagnetic wave beam with sufficient power density vector in a spatial area in the pointing direction of the directional power transmission antenna; it may also include multiple power transmission antennas, which can be installed in multiple positions respectively; multiple directional power transmission antennas can radiate multiple electromagnetic wave beams to form multiple wireless power supply space areas covered by electromagnetic wave beams with sufficient power density vectors, and these wireless power supply spaces can overlap or be independent of each other; wherein the output power of the wireless power transmission device can be automatically adjusted according to the output current of the resonant induction alternating current; when the output power of the resonant induction alternating current is relatively small, the output power of the wireless power transmission device is correspondingly reduced; when the output power of the resonant induction alternating current is relatively large, the output power of the wireless power transmission device is correspondingly increased.
3. The wireless intelligent sensing system according to claim 2, characterized in that: When in the non-pairing state, the wireless transceiver circuit of the wireless transmitting device may be in a power-off state or a standby state, and after entering the pairing state, the wireless transceiver circuit may be in a power-on state or an intermittent power-on state; The pairing sensor includes but is not limited to a magnetic field sensing sensor, a light sensing sensor, a sound wave sensing sensor, an electromagnetic induction sensor, an electric field sensing sensor, a capacitive induction sensor, and a mechanical touch switch sensor; the pairing signal field generator includes but is not limited to a magnetic field generator, a light wave generator, a sound wave generator, an electromagnetic field generator, an electric field generator, and a capacitor electrode; when the pairing sensor and the pairing signal field generator are close to each other, the pairing sensor can detect the signal field generated by the pairing signal field generator, including but not limited to a magnetic field, a light wave field, an electromagnetic field, an electric field, and a sound wave field, or detect a change in capacitance, and the mechanical touch switch sensor can be touched and trigger a change in its switch state; The microprocessors of the wireless transmitting device and the wireless receiving device can also be connected to their own electromagnetic induction transceiver circuits, including a carrier frequency alternating current signal generator, a modulation circuit, a demodulation circuit, an energy conversion circuit, and an electromagnetic induction antenna connected in sequence; The data to be sent by the microprocessor can be modulated onto the carrier frequency alternating current signal output by the carrier frequency alternating current generator through the modulation circuit of the transmitter, and the modulated electromagnetic wave is emitted through the electromagnetic induction antenna; The electromagnetic induction antenna of the receiving party can receive the modulated electromagnetic wave, and can restore the data sent by the sending party through the demodulation circuit and input it into the microprocessor of the receiving party; The wireless transmitting device and the wireless receiving device may be the sender and the receiver, or the receiver and the sender, respectively; The wireless intelligent sensing system may also include one or more wireless locators, which may be installed at multiple different installation locations inside hospitals and nursing homes; the wireless locator includes an energy module, a wireless transceiver circuit, and a directional antenna, and is capable of continuously or intermittently or periodically radiating a wireless positioning signal with a certain power density vector in a spatial area in the direction of the directional antenna, including but not limited to an ID code of the wireless locator, and the ID code of the wireless locator corresponds to the installation location; The wireless intelligent sensing system may also include one or more wireless positioning tag transmitters, which are capable of two-way wireless communication with the wireless locator, receiving the wireless positioning signal, and sending the unique ID code of the wireless positioning tag transmitter; The wireless positioning tag transmitter includes a wireless transceiver circuit, which can continuously or periodically transmit a wireless communication signal, including but not limited to the unique ID code of the wireless positioning tag transmitter, and can perform two-way wireless communication with the wireless locator, receive the wireless positioning signal, and send the unique ID code of the wireless positioning tag transmitter; The wireless positioning tag transmitter includes a microprocessor and corresponding embedded software, which can send the wireless contact signal and receive the wireless positioning signal, and can dynamically adjust the receiving sensitivity of the wireless transceiver circuit of the wireless positioning tag transmitter through the embedded software; when the wireless positioning tag transmitter enters a space area in the pointing direction of the directional antenna, if more than one wireless positioning signal can be received at the same time, the receiving sensitivity of the wireless transceiver circuit of the wireless positioning tag transmitter is continuously reduced until only the wireless positioning signal of the unique wireless locator can be received, and the installation position of the wireless locator is used as the position of the wireless positioning tag transmitter; The wireless positioning tag transmitter can obtain the ID code and corresponding installation location information of the wireless locator by performing the wireless communication with the wireless locator, thereby obtaining the location information of the wireless positioning tag transmitter; The wireless locator that is closest to the location can also obtain the location information of the wireless positioning tag transmitter through wireless communication with the wireless positioning tag transmitter; The wireless positioning tag transmitter can be installed on a movable monitored person, or on a movable medical device or material. The wireless transmitting device and the wireless receiving device can also include the wireless positioning tag transmitter, through which the current location information of the patient can be obtained, and the location information can be provided to the nurse on the wireless receiving device through the two-way communication, so that the nurse can quickly find their location; The wireless positioning tag transmitter also includes the energy module. When entering a space area covered by the electromagnetic wave near the wireless transmission antenna, the power receiving coil of the energy module can sense and receive electromagnetic waves with sufficient energy, and convert the energy of the received electromagnetic waves into electrical energy through the energy conversion circuit, and supply it to the wireless positioning tag transmitter; it can also trigger the wireless positioning tag transmitter and the wireless locator to enter the two-way wireless communication state; The alarm delay time data can be set and modified through the wireless receiving device, and can also be adaptively optimized and adjusted through the embedded software based on statistics of false alarms caused by individual patient behavior characteristics, thereby effectively reducing the probability of false alarms.
4. The wireless intelligent sensing system according to claim 3, characterized in that: The wireless intelligent pressure sensor is packaged as a complete whole, which may be a completely sealed whole, including an air bag for accommodating the air in the pressure sensor body, and a ventilation channel between the air bag and the sensor body. When the patient's body is pressed on the pressure sensor body, the air in the pressure sensor body can be transported to the inside of the air bag through the ventilation channel; the complete whole may also be a non-sealed whole with an external ventilation hole; The bottom skin layer may be a material having anti-slip characteristics, which can prevent the wireless intelligent pressure sensor from sliding on the contact surface in use; A layer of elastic buffer material capable of buffering impact force may also be provided between the epithelial layer of the pressure sensor body and the pressure sensor body. The elastic buffer material layer can fully absorb the impact force caused by the patient falling from the bed, thereby greatly reducing the damage caused by the impact force to the body. When the wireless communication is monitored to be in an abnormal state, and the abnormal state of the wireless communication still persists after the automatic correction, the wireless receiving device sends a wireless communication abnormality prompt message to remind the nurse to check whether the wireless intelligent sensor is accidentally moved from the original installation position to another place, and to check and eliminate other usage problems or hardware failures; The wireless receiving device also monitors the wireless signal strength. When it is detected that the wireless signal strength is lower than the minimum wireless signal strength allowed by normal wireless communication, the wireless receiving device sends a prompt message that the wireless communication signal is too weak, reminding the nurse to check whether the wireless intelligent sensor has been accidentally moved from the original installation position to another place. The wireless receiving device can also be connected to a camera and a microphone, and video calls, video monitoring, and two-way voice calls can be carried out through the display unit; The EEPROM storage unit of the wireless receiving device can also store voice data for playback, including but not limited to alarm voice data for reminding nursing staff, prompt voice data, and voice data for reminding patients; The wireless receiving device can be used to set and modify parameter data including but not limited to the alarm delay time data, working state control data, as well as transmission power data, receiving sensitivity data, radio working frequency band data, and radio working frequency point data, so as to realize the control of the wireless transceiver circuit, including but not limited to the control of the radio working frequency band, the control of the radio working frequency point, the control of the transmission power, the control of the receiving sensitivity, and the control of the power on and off of the wireless transceiver circuit; Appropriate alarm delay time parameters can also be set through the above settings and modifications to eliminate false alarms caused by patients turning over or moving.
5. The wireless intelligent sensing system according to claim 4, characterized in that: The wireless transmitting device and the sensor body can be integrated or two independent bodies connected to each other; the energy module and the wireless power receiving device can be integrated or two independent bodies connected to each other; the wireless receiving device and the matching signal field generator can be integrated or separate; The voice playback device also includes a voice input circuit, a voice download interface, a voice conversion circuit, a voice data storage device, a speaker, and a driving circuit. The reminder voice to be recorded can be input through the voice input circuit, including inputting voice through a microphone and converting it into voice data through the voice conversion circuit and storing it in the voice data storage device; the reminder voice of the patient's relatives can also be recorded through a mobile phone APP and a reminder voice data file can be generated, and the reminder voice data file can be downloaded to the voice data storage device of the voice playback device through the mobile phone and the voice download interface; The voice playing device and the wireless receiving device may be interconnected and integrated, or may be two independent entities connected to each other.
6. The wireless intelligent sensing system according to claim 5, characterized in that: The wireless intelligent pressure sensor includes a pressure sensor body, the wireless transmitting device, and the wireless receiving device, forming a wireless intelligent pressure sensing system; the wireless intelligent pressure sensor includes at least one pressure sensing module, and when used to monitor patients on a hospital bed, it may include multiple pressure sensing modules, and the modules are distributed at multiple different positions of the wireless intelligent pressure sensor, corresponding to multiple position areas of the hospital bed, respectively, and can detect the pressure distribution of the human body in multiple position areas of the hospital bed, and thereby determine the position of the human body on the bed and the position change status, and can determine whether the patient sits up from the bed, sits on the edge of the bed, has a tendency to leave the bed, or has left the bed; In use, when the embedded program of the wireless transmitting device determines that the body position of the human body has changed, after the embedded program of the wireless transmitting device performs a delay according to the alarm delay time parameter and then judges again, if it is determined that the body position of the human body has a tendency to leave the bed or has left the bed, the wireless transmitting device enters a warning state or an alarm state respectively, and simultaneously transmits a warning prompt signal or an alarm prompt signal to the wireless receiving device respectively, to prompt the nursing staff that the patient is about to leave the bed, or has left the bed or has fallen off the bed; When the patient returns to the bed and sits down, the alarm state of the wireless transmitting device can be reset, and a prompt signal is transmitted to the wireless receiving device to prompt the nursing staff that the patient has returned to the bed; When the wireless intelligent pressure sensor is used for bed monitoring, the sensor body may include a plurality of independent pressure sensing units, which may be distributed on the bed in an m×n matrix to form a wireless intelligent pressure sensor with an early warning function, wherein a portion of the pressure sensing units are distributed in the central area of the bed to form a central pressure sensing area; another portion of the pressure sensing units are distributed in the edge areas on both sides of the bed to form an edge pressure sensing area; the edge areas are distributed along the two edges of the bed, and may include a plurality of pressure sensing units, which are distributed in sequence from the central area of the bed to the edge of the bed; The sensing area of the wireless intelligent pressure sensor with early warning function can be larger than the range of the bed; when installed on beds of different sizes, the position and coverage of the edge pressure sensing area can be set or adjusted by the wireless receiving device according to the actual position of the bed edge, so that it is aligned with the edge area of the bed, ensuring that the patient's activities within the normal activity range of the bed will not accidentally trigger the edge pressure sensing area, avoiding false alarms; The sensing sensitivity of the pressure sensing unit in the edge pressure sensing area is lower than that of the pressure sensing unit in the central pressure sensing area, so that when the patient's limbs touch the edge pressure sensing area, the pressure is not enough to trigger the pressure sensing unit in the edge pressure sensing area, and the pressure sensing unit in the edge pressure sensing area will be triggered only when the patient sits on the edge pressure sensing area; The microprocessor collects signals from the pressure sensing units of multiple pressure sensors through the input circuit, and analyzes and judges through the embedded program corresponding to the microprocessor, thereby judging the body position and changes in body position of the human body, and can also judge that the body position has moved from the middle area to the edge area of the bed, and can also judge the sleeping posture of the human body and changes in sleeping posture; when the patient's body moves from the middle position of the bed to the edge position of the bed, the wireless transmitting device transmits an early warning prompt signal to the wireless receiving device to remind the nurse that the patient may get up and leave the bed immediately, and decide whether to arrive at the ward for care as soon as possible according to the patient's fall risk level; if the patient's body further leaves the edge position of the bed, the wireless transmitting device transmits an alarm prompt signal to the wireless receiving device to remind the nurse that the patient has left the bed, and decide whether to arrive at the ward for care immediately according to the patient's fall risk level.
7. The wireless intelligent sensing system according to claim 6, characterized in that: The wireless intelligent sensing system can detect the pressure distribution of multiple positions of the human body on the bed. After the embedded program of the wireless transmitting device analyzes and judges the signals of the multiple pressure sensing modules, it can also judge the sleeping position of the human body on the bed and the change of sleeping position. If the wireless receiving device does not receive the wireless signal containing the body position and sleeping posture information after the fixed time period ends, the wireless receiving device will send a command requesting wireless communication to the wireless transmitting device, requesting the wireless transmitting device to resend the scheduled communication wireless signal.
8. The wireless intelligent sensing system according to claim 7, characterized in that: The wireless receiving device also includes a display unit, including but not limited to an ink screen display, a liquid crystal display, and an LED indicator, which can display the status of the monitored object detected by one or more wireless intelligent sensors, including but not limited to the patient's position status, body position, sleeping posture, physiological parameters, and can also display alarm information and prompt information; The wireless receiving device may also include a voice recognition device, an image recognition device, and an operating device, including but not limited to a control switch and a control button, for parameter setting and working state control; The speech recognition device can recognize the patient's calling voice or the voice of the emergency call, and determine the patient's calling intention or the emergency call intention; The image recognition device can recognize and determine the patient's calling intention or emergency call intention through the patient's gesture; The image recognition device can recognize and determine the patient's emergency call intention through the patient's facial expression; The image recognition device can identify dangerous behaviors of the patient, including but not limited to leaving the bed, chair, wheelchair, toilet, ward without an escort, and also includes the patient falling; The image recognition device can recognize the facial features of the patient and the risky behavior of the patient leaving the ward door or passage door alone without anyone accompanying him.
9. The wireless intelligent sensing system according to claim 8, characterized in that: The wireless intelligent pressure sensor can be placed horizontally on a mounting plane, the wireless transmitting device includes a circuit board and a load-bearing shell, the circuit board, the paired sensor and the energy module are all arranged in the cavity of the load-bearing shell, the load-bearing shell is also connected to a load-bearing column, and the manufacturing process of the load-bearing shell includes but is not limited to an injection molding process, a vacuum forming process, a glue injection potting process, or a combination of these processes; The upper load-bearing surface of the load-bearing housing is located higher than the surface of the circuit board and the paired sensor relative to the plane for installing the sensor; the load-bearing housing further comprises annular raised load-bearing support ribs distributed around the periphery of the energy module; wherein the upper load-bearing surface of the annular raised load-bearing support ribs is located higher than the surface of the energy module relative to the ground; When external force acts on the load-bearing shell, the external force is transmitted in the order of the load-bearing shell, the load-bearing column, and the plane for installing the sensor. The load-bearing column ensures that the internal space of the cavity is not affected by the external force between the load-bearing shell and the plane for installing the sensor, thereby preventing the circuit board or the paired sensor or the energy module from being damaged due to the external force; when external force acts on the annular raised load-bearing support rib, the annular raised load-bearing support rib ensures that the internal space of the cavity is not affected by the external force, thereby preventing the energy module from being damaged due to the external force.
10. An intelligent sensing method, characterized in that: The method is used in the wireless intelligent sensing system according to any one of claims 1 to 9, and the intelligent sensing method comprises: S101, determining whether the distance between the first pairing area and the second pairing area is less than a preset distance threshold according to the signal field strength detected by the pairing sensor; S102: If the distance between the first pairing area and the second pairing area is less than a preset distance threshold, the pairing sensor senses a signal field generated by the pairing signal field generator; S103, if the distance between the first pairing area and the second pairing area is greater than or equal to a preset distance threshold, the wireless transmitting device is in a non-pairing state, does not transmit a wireless pairing signal, and waits for a preset time; S104, if after waiting for a preset time, the distance between the first pairing area and the second pairing area meets the condition described in S102, that is, the distance between the first pairing area and the second pairing area is less than a preset distance threshold, the wireless transmitting device is in a pairing state and transmits a wireless pairing signal; Among them, when the pairing area of the wireless transmitting device and the pairing area of the wireless receiving device are close to each other, that is, the distance between the two is less than the preset distance threshold, the distance between the pairing sensor of the wireless transmitting device and the pairing signal field generator of the wireless receiving device is reduced to a distance that can sense the signal field, and the wireless transmitting device enters the pairing state.
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