A low-power IoT intelligent infusion monitoring terminal

Abstract

A low-power IoT intelligent infusion monitoring terminal, which is composed of a main control, a capacitive sensor, an infrared photoelectric sensor, a communication module, a peripheral control circuit, a display control circuit, a sound control circuit, a power supply and a protection circuit. It integrates microcomputers, sensors, wireless communications, IoT and other technologies. Infusion monitoring uses two monitoring methods, capacitive sensors and infrared sensors, at the same time. The electronic control is a multi-core structure with a unique energy-saving power supply design, and lithium batteries can be used for long-term power supply. It can be networked with smart gateways, routers, the Internet, cloud servers, related background operation management software running on computers, and related APPs running on mobile phones to form a new low-power IoT intelligent infusion monitoring cloud platform system. It realizes the intelligence, networking, and Internet of Things of infusion monitoring, subverts the traditional nursing concept, and truly achieves unmanned infusion monitoring, which is a revolution in the field of medical care.

Description

Technical Field

[0001] The present invention relates to the field of Internet of Things (IoT) intelligent monitoring technology for smart medical care, and in particular to a low-power IoT intelligent infusion monitoring terminal technology. Background Art

[0002] At present, infusion therapy is a common treatment method in medical treatment, and the traditional solution for monitoring the infusion therapy process is to use manual visual inspection. Manual visual inspection has poor real-time and reliability, high fatigue strength, and is far from meeting the needs of people's modern life.

[0003] Existing equipment that uses weighing sensors as a way to detect intravenous infusion can use a set of weighing sensors to simultaneously detect the presence of infusion liquid in the thin tube part of the infusion tube and the dripping rate of the infusion liquid in the thick tube part of the infusion tube. However, the detection response speed is slow, and the dripping rate resolution of the infusion liquid is very low, usually the highest resolution can only reach 10 drops / minute. At the same time, the application scenario requirements are high, and the equipment has poor stability and high power consumption.

[0004] Most of the existing equipment that uses infrared photoelectric sensors as a way to detect intravenous infusion requires two sets of infrared photoelectric sensors to perform complete detection. One set of infrared photoelectric sensors is used to detect whether there is infusion liquid in the thin tube part of the infusion tube, and the other set of infrared photoelectric sensors is used to detect the dripping rate of the infusion liquid in the thick tube part of the infusion tube. The infusion liquid to be detected in the infusion tube first passes through the thick tube part of the infusion tube, flows through one set of infrared photoelectric sensors, and then passes through the thin tube part of the infusion tube and flows through another set of infrared photoelectric sensors, so the equipment consumes a lot of power.

[0005] Most of the existing equipment that uses capacitive sensors as a way to detect intravenous infusion also requires two sets of capacitive sensors to perform complete detection. One set of capacitive sensors is used to detect whether there is infusion liquid in the thin tube part of the infusion tube, and the other set of capacitive sensors is used to detect the dripping rate of the infusion liquid in the thick tube part of the infusion tube. Capacitive sensor detection is only suitable for detecting whether there is infusion liquid in the thin tube part of the infusion tube. When the capacitive sensor is used to detect the dripping rate of the infusion liquid in the thick tube part of the infusion tube, due to the small change in capacitance during the detection process, there are disadvantages such as unstable electrical signals, large zero drift, relatively complex detection circuits, the need for shielding protection for the sensor structure, and many interference sources in the application scenario.

[0006] The existing infusion detection not only has some problems in the detection application and other aspects of the above-mentioned sensors, but also has some problems in many aspects such as the control method of the device, the stability of the device, the networking method of the device, the communication method of the device, the transmission method of the device in the local area network, the transmission speed of the device in the local area network, the transmission distance of the device in the local area network, the same-frequency interference of the device in the local area network, the information sharing of the device, the energy-saving power supply of the device, the selection of the device sensor, the structure of the device sensor and the detection order of the device sensor. The present invention solves and innovates some of the above-mentioned problems.

[0007] With the rapid development of Internet of Things technology, it has been widely used in more and more fields, and it has also brought far-reaching impacts to the field of medical care equipment technology. The medical Internet of Things is the core of smart medical care. Its essence is to collect various information and related data, as well as related control information through sensors. After being processed by the IoT smart terminal, various information and related data are transmitted from the IoT smart terminal to the Internet through gateways and routers, and then transmitted from the server to various display terminals, such as mobile phones, PCs, PDAs, etc., to achieve information interconnection and sharing, and to achieve the interconnection between people and things, thus forming a huge smart medical network.

[0008] The present invention discloses a low-power IoT intelligent infusion monitoring terminal. It integrates microcomputers, sensors, wireless communications, IoT, artificial intelligence and other technologies, adopts a multi-core structure, solves the problem that the single-chip microcomputer MCU cannot work in time-sharing mode, and greatly improves the safety and reliability of the equipment. Infusion monitoring uses two detection methods, capacitive sensors and infrared photoelectric sensors, to perform detection simultaneously. It has a unique low-power power supply design, is highly energy-saving, and can be powered for a long time with lithium batteries, realizing the intelligence, networking and Internet of Things of medical care.

[0009] The low-power IoT intelligent infusion monitoring terminal described in the present invention is a revolution in the field of medical care, which has overturned the traditional nursing concept. It has a portable design, is easy to use and convenient to operate, solves the major problem of infusion monitoring, and truly achieves unmanned infusion monitoring, remote control, and integration of on-site alarm and control. Summary of the invention

[0010] The low-power IoT intelligent infusion monitoring terminal of the present invention is used for infusion monitoring in medical treatment. A low-power IoT intelligent infusion monitoring terminal, an intelligent gateway, a router, the Internet, a cloud server, D computers running related background operation management software, and E mobile phones running related apps are networked to form the simplest low-power IoT intelligent infusion monitoring system in a single base type.

[0011] The D and E are preset according to the networking requirements of the application scenario and are represented by natural numbers.

[0012] The low-power IoT intelligent infusion monitoring terminal is composed of a power supply and protection circuit, a main control, a capacitive sensor, an infrared photoelectric sensor, a communication module, a peripheral control circuit, a display control circuit, and a sound control circuit.

[0013] The power supply and protection circuit is composed of a lithium battery charge and discharge protection chip, a micro-power DC-DC voltage regulator chip, and a voltage and current detection and protection chip, and is used for lithium battery charge and discharge protection, working power supply voltage stabilization, and overload, overvoltage and overcurrent protection during use.

[0014] The main control is composed of a micro-power COMS single-chip computer MCU1 and a memory EAROM. The main control is used to store, calculate and make logical judgments on relevant data, and use the results to control all control circuits and manage power consumption of the low-power IoT intelligent infusion monitoring terminal.

[0015] The main control manages the power consumption of all control circuits of the low-power IoT intelligent infusion monitoring terminal, and comprehensively optimizes the power consumption, working mode, working time, and related control functions and power supply methods of all control circuits of the low-power IoT intelligent infusion monitoring terminal. On the premise of meeting the control function, in order to reduce power consumption and extend standby time, and ensure that the low-power IoT intelligent infusion monitoring terminal can continuously monitor and operate for 30 working days when using a 18650 lithium battery as a power supply, four power supply methods are formulated: continuous power supply method, intermittent power supply method, timed power supply method and needed power supply method.

[0016] The continuous power supply mode refers to a power supply mode that continuously supplies power to the power supply of the low-power IoT intelligent infusion monitoring terminal control circuit. Only control circuits with standby and working currents of microamperes are suitable for this power supply mode.

[0017] The intermittent power supply mode refers to a power supply mode in which the main control adopts a pulse oscillation mode to supply power to the power supply of the control circuit of the low-power IoT intelligent infusion monitoring terminal, in order to reduce power consumption and extend standby time, while satisfying the control function.

[0018] The timed power supply mode refers to a power supply mode in which the main control determines the power supply time and power supply duration according to the setting of relevant clocks in order to reduce power consumption and extend standby time, while satisfying the control function, and supplies power to the power supply of the control circuit of the low-power IoT intelligent infusion monitoring terminal.

[0019] The demand-based power supply mode refers to a power supply mode in which the main control supplies power to the power supply of the low-power IoT intelligent infusion monitoring terminal control circuit according to the needs of the control function in order to reduce power consumption and extend standby time, while satisfying the control function.

[0020] The standby and working currents of the main control circuit are both in the microampere level, and after the main control is turned on, the power supply is in a continuous power supply mode.

[0021] The standby and working currents of the capacitive sensor control circuit are both in the microampere level. The main control controls the power supply of the capacitive sensor according to functional requirements, and implements a continuous power supply mode.

[0022] In order to reduce power consumption and extend standby time, the infrared photoelectric sensor implements an intermittent power supply mode according to functional requirements and under the premise of satisfying the control function, the main control controls the power supply of the infrared photoelectric sensor.

[0023] In order to reduce power consumption and extend standby time, the communication module implements a demand-based power supply mode when the main control uploads and sends transparent transmission related data according to functional needs, while meeting the control function. When downloading and receiving transparent transmission related data, the main control implements a timed power supply mode for the power supply of the communication module.

[0024] In order to reduce power consumption and extend standby time, the peripheral control circuit implements a continuous power supply mode by controlling the power supply of the peripheral control circuit according to functional requirements while satisfying the control function.

[0025] In order to reduce power consumption and extend standby time, the display control circuit implements a demand-based power supply mode by controlling the power supply of the display control circuit according to functional requirements while satisfying the control function.

[0026] In order to reduce power consumption and extend standby time, the sound control circuit implements a demand-based power supply mode by controlling the power supply of the sound control circuit according to functional needs while satisfying the control function.

[0027] The capacitive sensor is an integrated component structure, which is composed of a metal parallel plate capacitor and a capacitive sensor detection circuit on a circuit board, which are placed inside the capacitive sensor. The sensor integrated component structure effectively reduces detection interference and is easy to install, debug and inspect.

[0028] The metal parallel plate capacitor is composed of two metal plates which are arranged face to face, parallel and symmetrically.

[0029] The capacitance sensor detection circuit is composed of a resistor on a circuit board and a CMOS single-chip microcomputer MCU2.

[0030] The capacitive sensor is used to detect whether the thin tube part of the infusion tube contains infusion liquid, and transmits the detection information to the COMS single-chip microcomputer MCU1 in the main control through the COMS single-chip microcomputer MCU2 in the capacitive sensor detection circuit.

[0031] The thin tube portion of the infusion tube is located in the middle of two metal plates in the metal parallel plate capacitor.

[0032] The infrared photoelectric sensor is an integrated component structure, which is composed of an infrared emitting plate and an infrared receiving plate, which are arranged face to face, parallel and symmetrically placed inside the infrared photoelectric sensor. The sensor integrated component structure effectively reduces detection interference and is easy to install, debug and inspect.

[0033] The infrared emitting electrode plate is composed of a single infrared emitting tube in the infrared photoelectric sensor detection circuit and a current limiting resistor of the single infrared emitting tube.

[0034] The single infrared emitting tube and the current limiting resistor of the single infrared emitting tube are both located on the infrared emitting electrode plate.

[0035] The infrared receiving electrode plate is composed of a plurality of infrared receiving tubes in the infrared photoelectric sensor detection circuit, a plurality of current limiting resistors of the infrared receiving tubes and a COMS single chip microcomputer MCU3.

[0036] The serial numbers of the same parts in the plurality of infrared receiving tubes and the current limiting resistors of the infrared receiving tubes are marked with I, where I is a natural number from 1 to 7.

[0037] The infrared receiving tube, the current limiting resistor of the infrared receiving tube and the COMS single chip microcomputer MCU3 are all located on the infrared receiving electrode plate.

[0038] The placement positions of the multiple infrared receiving tubes are set to be arranged in two parallel rows, cross-staggered, and the infrared receiving tubes in the two single rows are arranged in a straight line with equal spacing, which effectively avoids detection blind spots.

[0039] The infrared photoelectric sensor is used to detect the dripping speed Vd(n) of the infusion liquid in the thick tube part of the infusion tube, and transmits the detection information to the COMS microcontroller MCU1 in the main control through the COMS microcontroller MCU3 in the infrared photoelectric sensor detection circuit.

[0040] The thick tube portion of the infusion tube is located between the infrared emitting plate and the infrared receiving plate in the infrared photoelectric sensor.

[0041] The Vd(n) represents the dripping rate of the infusion liquid per minute, and the unit is set to drops / minute, and (n) is the nth measurement.

[0042] The communication module is composed of a wireless communication module with a working frequency of 2.4G, and a Zigbee module, a WIFI module, a Lora module, and a BTM module are selected respectively. It is used to connect to a router through an intelligent gateway, and then the router is connected to the Internet, and relevant data communication is carried out through the Internet, and the relevant data of the transparent transmission is transmitted to a cloud server. The cloud server then transmits the relevant data of the transparent transmission to the relevant background operation management software running in D computers and the relevant APP running in E mobile phones through the Internet.

[0043] The communication module transparently transmits relevant data in two ways: uplink transmission and downlink reception.

[0044] The communication module uploads and sends relevant data, and the main control performs operation control according to functional requirements. When the main control determines that the relevant data needs to be uploaded and sent, the power of the communication module is turned on to start the communication module. The communication module starts to connect to the network and transmit transparently, and upload and send relevant data.

[0045] The communication module transmits and receives relevant data, and the main control performs operation control based on the timing to receive and transmit relevant data. When the main control determines that the timing has arrived and it is necessary to transmit and receive relevant data, the power of the communication module is turned on to make the communication module work. The communication module starts to connect to the network and transmit transparently, and transmit and receive relevant data.

[0046] The peripheral control circuit is composed of a touch switch and is used to turn on the power supply and function control.

[0047] The display control circuit is composed of a display driving circuit, a display and LEDs.

[0048] The display control circuit is controlled by the main control to drive the display and LED according to the needs of the main control, and sends out visible information for prompts and alarms of various states.

[0049] The sound control circuit is composed of an audio driving circuit, a speaker and a buzzer.

[0050] The sound control circuit is based on the needs of the main control, and the main control controls the audio driving circuit to drive the speaker and buzzer to emit various prompt sounds for prompts and alarms in various states.

[0051] As an innovation of the present invention, the sensor structures of the capacitive sensor and the infrared photoelectric sensor of the low-power IoT intelligent infusion monitoring terminal are respectively integrated component structures. The sensor integrated component structure effectively reduces detection interference and is convenient for installation, debugging and quality inspection.

[0052] As an innovation of the present invention, a capacitive sensor for detecting whether there is infusion liquid in the thin tube part of the infusion tube is located above an infrared photoelectric sensor for detecting the dripping speed of the infusion liquid in the thick tube part of the infusion tube. The infusion liquid to be detected in the infusion tube first passes through the thin tube part of the infusion tube, flows through the capacitive sensor, and then passes through the thick tube part of the infusion tube and flows through the infrared photoelectric sensor.

[0053] As an innovation of the present invention, the low-power IoT intelligent infusion monitoring terminal has a multi-core structure in its internal control circuit, which is composed of a COMS single-chip microcomputer MCU1 in the main control, a COMS single-chip microcomputer MCU2 in the capacitive sensor, and a COMS single-chip microcomputer MCU3 in the infrared photoelectric sensor. This structure effectively avoids the drawback that the single-chip microcomputer cannot work in time-sharing mode, and improves the computing speed of the low-power IoT intelligent infusion monitoring terminal.

[0054] As an innovation of the present invention, the low-power IoT intelligent infusion monitoring terminal has three operating methods to turn on the device: one is to turn it on by operating the touch switch; the second is to scan the corresponding QR code on the device through the relevant APP running in the mobile phone to turn it on; the third is to remotely control the device to turn it on through the relevant APP running in the mobile phone.

[0055] As an innovation of the present invention, the low-power Internet of Things intelligent infusion monitoring terminal enters an initialization state after being powered on. The main control continuously supplies power to the capacitive sensor. When the infusion tube has not been installed on the detection bracket of the capacitive sensor, a no-load detection is immediately performed. At this time, the capacitive sensor detects the no-load capacitance value C(0) and transmits it to the COMS microcontroller MCU1 in the main control through the COMS microcontroller MCU2 in the capacitive sensor detection circuit. The main control stores, calculates and makes logical judgments on the relevant data, and uses the results to control other circuits and manage power consumption.

[0056] As an innovation of the present invention, the low-power Internet of Things intelligent infusion monitoring terminal, after the low-power Internet of Things intelligent infusion monitoring terminal is powered on, when the thin tube part of the infusion tube is installed on the detection bracket of the capacitive sensor, and the thick tube part of the infusion tube is installed on the detection bracket of the infrared photoelectric sensor, the capacitive sensor starts normal sampling detection, and transmits the capacitance value C(n) related data obtained by the detection sampling to the COMS microcontroller MCU1 in the main control. When the main control stores, calculates and logically judges the relevant data, it is found that C(n+1)=C(n), C(n)> At C(0), the main control provides intermittent power to the infrared photoelectric sensor, allowing the infrared photoelectric sensor to start intermittent work. At this time, the infrared photoelectric sensor detects the dripping rate Vd(n) of the infusion liquid in the thick tube part of the infusion tube, and transmits the detected dripping rate Vd(n) of the infusion liquid to the COMS microcontroller MCU1 in the main control through the COMS microcontroller MCU3 in the infrared photoelectric sensor detection circuit. The main control stores, calculates and makes logical judgments on the relevant data of Vd(n), and uses the results to control other circuits and manage power consumption.

[0057] As an innovation of the present invention, a low-power Internet of Things intelligent infusion monitoring terminal is provided. After the low-power Internet of Things intelligent infusion monitoring terminal is powered on, during the infusion detection process, when the main control stores, calculates and logically judges the relevant data, it is found that C(n+1)=C(n), C(n)>C(0), and it is detected that the dripping rate Vd(n) detection value of the dripping of the infusion liquid in the thick tube part of the infusion tube is not within the set value range, or the dripping rate Vd(n) of the infusion liquid is 0, the main control determines that the infusion work is abnormal. At this time, the communication module immediately connects to the Internet through the intelligent gateway and the router to communicate relevant data and transparently transmit relevant data, that is, upload and send relevant information and download and receive remote control information. At the same time, the display control circuit and the sound control circuit respectively send various visible information and prompt sounds to provide status prompts for abnormal infusion work.

[0058] As an innovation of the present invention, a low-power IoT intelligent infusion monitoring terminal is provided. After the low-power IoT intelligent infusion monitoring terminal is powered on, during the infusion detection process, when the main control stores, calculates and logically judges the relevant data, it is found that C(n+1)=C(n), C(n)>C(0), and when the dripping rate Vd(n) of the infusion liquid dripping in the thick tube part of the infusion tube is detected to be within the set value range, the main control determines that the infusion is working normally, starts the communication module at a fixed time, connects to the Internet through the intelligent gateway and router, performs relevant data communication, and transparently transmits relevant data, that is, uploads and sends relevant information and downloads and receives remote control information. At the same time, the display control circuit and the sound control circuit respectively send various visible information and prompt sounds to provide a status prompt for the normal infusion work.

[0059] As an innovation of the present invention, a low-power Internet of Things intelligent infusion monitoring terminal, after the low-power Internet of Things intelligent infusion monitoring terminal is powered on, during the infusion detection process, when the main control stores, calculates and logically judges the relevant data, it is found that C(n+1)=C(n), C(n)=C(0), and when the dripping rate Vd(n) of the infusion liquid dripping in the thick tube part of the infusion tube is detected to be zero, the main control determines that the infusion work is completed and turns off the working power of the infrared photoelectric sensor. At this time, the communication module immediately connects to the Internet through the intelligent gateway and router to communicate relevant data and transparently transmit relevant data, that is, upload and send relevant information and download and receive remote control information. At the same time, the display control circuit and the sound control circuit respectively send various visible information and prompt sounds to provide a status prompt for the completion of the infusion work.

[0060] As an innovation of the present invention, the low-power IoT intelligent infusion monitoring terminal is based on the needs of many different application scenarios. A low-power IoT intelligent infusion monitoring terminal described in the present invention, B intelligent gateways, C routers, the Internet, cloud servers, D related background operation management software running in computers, and E related APPs running in mobile phones are networked to form a variety of new low-power IoT intelligent infusion monitoring systems. The various new low-power IoT intelligent infusion monitoring systems are re-networked through cloud servers to form a new low-power IoT intelligent infusion monitoring cloud platform system.

[0061] The A, B, C, D and E are pre-set according to the networking needs of the application scenario and are represented by natural numbers. When A, B, C, D and E are 1 respectively, the number before the product name is omitted. For example: when A=1, at this time, A low-power IoT intelligent infusion monitoring terminals 1 described in the present invention are described as a low-power IoT intelligent infusion monitoring terminal 1 described in the present invention. When A is a natural number greater than 1, such as A=2, at this time, A low-power IoT intelligent infusion monitoring terminals 1 described in the present invention are described as 2 low-power IoT intelligent infusion monitoring terminals 1 described in the present invention, and so on.

[0062] Compared with the prior art, the innovative features of the present invention are as follows:

[0063] The present invention analyzes various problems existing in the structure and detection application of infrared photoelectric sensors and capacitive sensors in existing infusion detection in many aspects, and innovatively designs the sensor structures of the capacitive sensor and infrared photoelectric sensor of the low-power IoT intelligent infusion monitoring terminal into an integrated component structure. It effectively reduces detection interference and facilitates installation, debugging and quality inspection. In terms of the detection method of the sensor, the two detection methods of the infrared photoelectric sensor and the capacitive sensor of the low-power IoT intelligent infusion monitoring terminal are innovatively optimized and combined, each taking its advantages, so that the detection becomes more accurate and reliable, and energy-saving and power-saving. In terms of the arrangement of the sensor detection positions, the arrangement order of the sensor detection positions in the existing infusion detection is innovatively changed, and the capacitive sensor used by the low-power IoT intelligent infusion monitoring terminal to detect whether there is infusion liquid in the thin tube part of the infusion tube is located above the infrared photoelectric sensor used to detect the dripping speed of the infusion liquid in the thick tube part of the infusion tube. The infusion liquid to be detected in the infusion tube first passes through the thin tube part of the infusion tube, flows through the capacitive sensor, and then passes through the thick tube part of the infusion tube and flows through the infrared photoelectric sensor. In addition, the placement positions of multiple infrared receiving tubes in the infrared photoelectric sensor are re-optimized, that is, the placement positions of multiple infrared receiving tubes of the low-power IoT intelligent infusion monitoring terminal are set to be parallel in two rows, cross-staggered, and the infrared receiving tubes in the two single rows are arranged in a straight line with equal spacing to avoid detection blind spots.

[0064] The present invention innovates the existing continuous power supply mode of infusion detection equipment into four types. That is, continuous power supply mode, intermittent power supply mode, timed power supply mode and required power supply mode. The infusion detection equipment achieves super power saving, and can be powered for a long time with lithium batteries, and it is small in size, light in weight and easy to carry. The equipment no longer needs to be powered by AC 220V mains after transformation, rectification and voltage stabilization, which solves the cumbersome power line problem and is more convenient to use.

[0065] The present invention innovates the working mode of the existing communication module to be operated and controlled by the main control of the low-power IoT intelligent infusion monitoring terminal. The communication module uploads and sends relevant data, and the main control performs operation control according to functional requirements.

[0066] The communication module transmits and receives relevant data, and the main control performs operation control according to the timing reception and transmission of relevant data.

[0067] The present invention innovates the single-core structure in the existing control circuit into a multi-core structure. The multi-core structure of the low-power IoT intelligent infusion monitoring terminal is composed of a COMS single-chip microcomputer MCU1 in the main control, a COMS single-chip microcomputer MCU2 in the capacitive sensor, and a COMS single-chip microcomputer MCU3 in the infrared photoelectric sensor. This structure effectively avoids the disadvantage that the single-chip microcomputer cannot work in time-sharing mode, and improves the computing speed of the low-power IoT intelligent infusion monitoring terminal.

[0068] The present invention innovates the single basic startup mode of the existing equipment after power-on into three operation modes to start the low-power IoT intelligent infusion monitoring terminal device: one is to turn it on by operating a touch switch; the second is to scan the corresponding QR code on the device through a related APP running in the mobile phone to turn it on; the third is to remotely control the device to turn it on through a related APP running in the mobile phone.

[0069] The low-power IoT intelligent infusion monitoring terminal described in the present invention has a unique low-power power supply design and is extremely energy-saving, so that the existing IoT intelligent infusion monitoring terminal is miniaturized, portable and movable, and can be powered for a long time using a lithium battery.

[0070] The low-power IoT intelligent infusion monitoring terminal described in the present invention replaces the existing related products. According to the needs of many different application scenarios, the low-power IoT intelligent infusion monitoring terminal respectively networks A low-power IoT intelligent infusion monitoring terminals described in the present invention, B intelligent gateways, C routers, the Internet, cloud servers, D related background operation management software running in computers, and E related apps running in mobile phones to form a variety of new low-power IoT intelligent infusion monitoring systems. The various new low-power IoT intelligent infusion monitoring systems are re-networked through cloud servers to form a new low-power IoT intelligent infusion monitoring cloud platform system.

[0071] The A, B, C, D and E are pre-set according to the networking needs of the application scenarios, and are represented by natural numbers. The A, B, C, D and E are represented by natural numbers according to the networking needs of the application scenarios. When A, B, C, D and E are 1 respectively, the number before the product name is omitted. For example: when A=1, at this time, A low-power IoT intelligent infusion monitoring terminals 1 described in the present invention are described as a low-power IoT intelligent infusion monitoring terminal 1 described in the present invention. When A is a natural number greater than 1, such as A=2, at this time, A low-power IoT intelligent infusion monitoring terminals 1 described in the present invention are described as 2 low-power IoT intelligent infusion monitoring terminals 1 described in the present invention, and so on. BRIEF DESCRIPTION OF THE DRAWINGS

[0072] Figure 1 It is the simplest block diagram of a new type of low-power IoT intelligent infusion monitoring system in the single base type described in the present invention;

[0073] Figure 2 It is a principle block diagram of a low-power IoT intelligent infusion monitoring terminal circuit described in the present invention;

[0074] Figure 3 It is a schematic diagram of the structure of the capacitance sensor and a principle block diagram of the detection circuit of the present invention;

[0075] Figure 3 Figure (a) is a schematic diagram of the capacitance sensor detection circuit of the present invention;

[0076] Figure 3 The middle figure (b) is a schematic diagram of the metal plate in the parallel plate capacitor of the present invention;

[0077] Figure 3 The middle figure (c) is a schematic diagram of the infusion detection structure of the capacitive sensor of the present invention;

[0078] Figure 4 It is a schematic diagram of the structure of the infrared photoelectric sensor and a principle diagram of the detection circuit of the present invention;

[0079] Figure 4 The middle figure (a) is a schematic diagram of the arrangement structure of infrared emitting tubes on the infrared emitting plate of the present invention;

[0080] Figure 4 The middle figure (b) is a circuit schematic diagram of infrared emission on the infrared emission plate of the present invention;

[0081] Figure 4 The middle figure (c) is a schematic diagram of the arrangement structure of infrared receiving tubes on the infrared receiving electrode plate of the present invention;

[0082] Figure 4 The middle figure (d) is a circuit schematic diagram of infrared receiving on the infrared receiving electrode plate of the present invention;

[0083] Figure 4 The middle figure (e) is a schematic diagram of the infrared photoelectric sensor infusion detection structure of the present invention;

[0084] Figure 5 It is a schematic diagram of the infusion detection structure assembly of the capacitive sensor and the infrared photoelectric sensor of the present invention;

[0085] Figure 6 It is a new type of low-power IoT intelligent infusion monitoring cloud platform system block diagram.

[0086] according to Figure 1-Figure 6 The specific instructions are as follows:

[0087] Figure 1 As shown in: 1 is a low-power IoT intelligent infusion monitoring terminal; 2 is a smart gateway; 3 is a router; 4 is the Internet; 5 is a cloud server; 6 is the related background operation management software running in the computer; 7 is the related APP running in the mobile phone.

[0088] Figure 2 As shown in: 1.1 is the power supply and protection circuit; 1.2 is the main control; 1.3 is the capacitive sensor; 1.4 is the infrared photoelectric sensor; 1.5 is the communication module; 1.6 is the peripheral control circuit; 1.7 is the display control circuit; 1.8 is the sound control circuit.

[0089] Figure 3 As shown in the figure: 1.3.1 is the metal parallel plate capacitor; 1.3.2 is the resistor; 1.3.3 is the COMS microcontroller MCU2; 1.3.4 is the metal electrode plate; 1.3.5 is the thin tube part of the infusion tube.

[0090] Figure 4 As shown in the figure: 1.4.1 is the infrared emitting plate; 1.4.2 is the infrared emitting tube; 1.4.3 is the current limiting resistor; 1.4.4 is the infrared receiving plate; 1.4.5-I is the infrared receiving tube; 1.4.6-I is the current limiting resistor; 1.4.7 is the COMS microcontroller MCU3; 1.4.8 is the thick tube part of the infusion tube.

[0091] Figure 5 As shown in the figure: 1.3 is the capacitive sensor; 1.3.4 is the metal plate; 1.3.5 is the thin tube part of the infusion tube; 1.4 is the infrared photoelectric sensor; 1.4.1 is the infrared emitting plate; 1.4.4 is the infrared receiving plate; 1.4.8 is the thick tube part of the infusion tube.

[0092] Figure 6 As shown in the figure: 1 is a low-power IoT intelligent infusion monitoring terminal described in the present invention; 2 is an intelligent gateway; 3 is a router; 4 is the Internet; 5 is a cloud server; 6 is related background operation management software running in a computer; 7 is a related APP running in a mobile phone. DETAILED DESCRIPTION

[0093] In order to make the objectives, technical solutions and advantages of the present invention more clear, the present invention is described in detail herein with reference to the accompanying drawings and specific implementation examples.

[0094] like Figure 1As shown: A low-power IoT intelligent infusion monitoring terminal 1 of the present invention is used for infusion monitoring during medical treatment. A low-power IoT intelligent infusion monitoring terminal 1 and an intelligent gateway 2, a router 3, the Internet 4, a cloud server 5, D computers running related background operation management software 6, and E mobile phones running related APPs 7 are networked to form the simplest low-power IoT intelligent infusion monitoring system in a single base type.

[0095] The D and E are preset according to the networking requirements of the application scenario and are represented by natural numbers.

[0096] like Figure 2 As shown: the low-power IoT intelligent infusion monitoring terminal 1 is composed of a power supply and protection circuit 1.1, a main control 1.2, a capacitive sensor 1.3, an infrared photoelectric sensor 1.4, a communication module 1.5, a peripheral control circuit 1.6, a display control circuit 1.7, and a sound control circuit 1.8.

[0097] like Figure 2 As shown: the power supply and protection circuit 1.1 is composed of a lithium battery charge and discharge protection chip, a micro-power DC-DC voltage regulator chip, and a voltage and current detection and protection chip, which is used for lithium battery charge and discharge protection, working power supply voltage regulation, and overload, overvoltage and overcurrent protection during use.

[0098] like Figure 2 As shown: the main control 1.2 is composed of a micro-power COMS single-chip microcomputer MCU1 and a memory EAROM. The main control 1.2 is used to store, calculate and make logical judgments on relevant data, and use the results to control all control circuits of the low-power IoT intelligent infusion monitoring terminal 1 and manage power consumption.

[0099] The main control 1.2 manages the power consumption of all control circuits of the low-power IoT intelligent infusion monitoring terminal 1, and comprehensively optimizes the power consumption, working mode, working time, and related control functions and power supply methods of all control circuits of the low-power IoT intelligent infusion monitoring terminal 1. On the premise of meeting the control function, in order to reduce power consumption and extend standby time, and ensure that the low-power IoT intelligent infusion monitoring terminal 1 can continuously monitor and operate for 30 working days when using a 18650 lithium battery as a power supply, four power supply methods are formulated: continuous power supply method, intermittent power supply method, timed power supply method and needed power supply method.

[0100] The continuous power supply mode refers to a power supply mode that continuously supplies power to the power supply of the control circuit of the low-power IoT intelligent infusion monitoring terminal 1. Only control circuits with standby and working currents of microamperes are suitable for this power supply mode.

[0101] The intermittent power supply mode refers to a power supply mode in which the main control adopts a pulse oscillation mode to supply power to the power supply of the control circuit of the low-power IoT intelligent infusion monitoring terminal, in order to reduce power consumption and extend standby time, while satisfying the control function.

[0102] The timed power supply mode refers to a power supply mode in which the main control 1.2 determines the power supply time and power supply duration according to the setting of relevant clocks to reduce power consumption and extend standby time, while satisfying the control function, and supplies power to the power supply of the control circuit of the low-power IoT intelligent infusion monitoring terminal 1.

[0103] The demand-based power supply mode refers to a power supply mode in which the main control 1.2 supplies power to the power supply of the control circuit of the low-power IoT intelligent infusion monitoring terminal 1 according to the needs of the control function in order to reduce power consumption and extend standby time, while satisfying the control function.

[0104] like Figure 2 As shown: the standby and working currents of the control circuit of the main control 1.2 are both in the microampere level, and the power supply of the main control 1.2 is continuous after it is turned on.

[0105] like Figure 2 As shown: the standby and working currents of the control circuit of the capacitive sensor 1.3 are both in the microampere level. According to the functional requirements, the main control 1.2 supplies power to the capacitive sensor 1.3 in a continuous manner.

[0106] like Figure 2 As shown: in order to reduce power consumption and extend standby time, the infrared photoelectric sensor 1.4 implements an intermittent power supply mode according to the functional requirements of the main control 1.2 on the power supply of the infrared photoelectric sensor 1.4 while satisfying the control function.

[0107] like Figure 2 As shown: In order to reduce power consumption and extend standby time, the communication module 1.5 implements a demand-based power supply mode for the power supply of the communication module 1.5 when uploading and sending transparent transmission related data according to the functional needs, while satisfying the control function. When downloading and receiving transparent transmission related data, the main control 1.2 implements a timed power supply mode for the power supply of the communication module 1.5.

[0108] like Figure 2 As shown: in order to reduce power consumption and extend standby time, the peripheral control circuit 1.6 implements a continuous power supply mode for the power supply of the peripheral control circuit 1.6 according to functional requirements while satisfying the control function.

[0109] like Figure 2As shown: in order to reduce power consumption and extend standby time, the display control circuit 1.7 adopts a demand-based power supply mode according to the functional needs of the main control 1.2 on the power supply of the display control circuit 1.7, while satisfying the control function.

[0110] like Figure 2 As shown: in order to reduce power consumption and extend standby time, the sound control circuit 1.8 adopts a demand-based power supply mode according to the main control 1.2 for the power supply of the sound control circuit 1.8 under the premise of satisfying the control function.

[0111] like Figure 3 As shown: the capacitive sensor 1.3 is an integrated component structure, which is composed of a metal parallel plate capacitor 1.3.1 and a capacitive sensor detection circuit on a circuit board, which are placed inside the capacitive sensor. The sensor integrated component structure effectively reduces detection interference and is easy to install, debug and inspect.

[0112] like Figure 3 As shown in Figures (b) and (c) in the figure: the metal parallel plate capacitor 1.3.1 is composed of two metal plates 1.3.4 that are arranged face to face, parallel and symmetrically.

[0113] like Figure 3 As shown in Figure (a): the capacitive sensor detection circuit is composed of resistors 1.3.2 on the circuit board and COMS microcontroller MCU21.3.3.

[0114] like Figure 3 As shown in Figures (a) and (c) in the figure: the capacitive sensor 1.3 is used to detect whether the thin tube part 1.3.5 of the infusion tube contains infusion liquid, and transmits the detection information to the COMS microcontroller MCU1 in the main control 1.2 through the COMS microcontroller MCU21.3.3 in the capacitive sensor detection circuit.

[0115] like Figure 3 As shown in Figures (b) and (c), the thin tube portion 1.3.5 of the infusion tube is located in the middle of the two metal plates 1.3.4 in the metal parallel plate capacitor 1.3.1.

[0116] like Figure 4 As shown: the infrared photoelectric sensor 1.4 is an integrated component structure, which is composed of an infrared emitting plate 1.4.1 and an infrared receiving plate 1.4.4, which are arranged face to face, parallel and symmetrically placed inside the infrared photoelectric sensor 1.4. The integrated component structure of the sensor effectively reduces detection interference and is easy to install, debug and inspect.

[0117] like Figure 4As shown in Figures (a) and (b) in the figure: the infrared emitting electrode plate 1.4.1 is composed of a single infrared emitting tube 1.4.2 in the infrared photoelectric sensor detection circuit and a current limiting resistor 1.4.3 of the single infrared emitting tube 1.4.2.

[0118] like Figure 4 As shown in Figures (a) and (b) in the figure: the single infrared emitting tube 1.4.2 and the current limiting resistor 1.4.3 of the single infrared emitting tube 1.4.2 are both located on the infrared emitting electrode plate 1.4.1.

[0119] like Figure 4 As shown in Figures (c) and (d): the infrared receiving plate 1.4.4 is composed of multiple infrared receiving tubes 1.4.5-I in the infrared photoelectric sensor detection circuit, current limiting resistors 1.4.6-I of multiple infrared receiving tubes 1.4.5-I and COMS microcontroller MCU31.4.7.

[0120] like Figure 4 As shown in Figure (d): I in the multiple infrared receiving tubes 1.4.5-I and the current limiting resistor 1.4.6-I of the infrared receiving tube 1.4.5-I is the serial number of the same part, represented by a natural number from 1 to 7.

[0121] like Figure 4 As shown in Figures (c) and (d), the infrared receiving tube 1.4.5-I, the current limiting resistor 1.4.6-I of the infrared receiving tube 1.4.5-I and the COMS microcontroller MCU31.4.7 are all located on the infrared receiving electrode plate 1.4.4.

[0122] like Figure 4 As shown in Figure (c), the placement positions of the multiple infrared receiving tubes 1.4.5-I are set to be parallel in two rows, cross-staggered, and the infrared receiving tubes 1.4.5-I in the two single rows are arranged in a straight line with equal spacing, which effectively avoids detection blind spots.

[0123] like Figure 4 As shown in Figures (d) and (e) in the figure: the infrared photoelectric sensor 1.4 is used to detect the dripping rate Vd(n) of the infusion liquid in the thick tube part 1.4.8 of the infusion tube, and transmits the detection information to the COMS microcontroller MCU1 in the main control 1.2 through the COMS microcontroller MCU31.4.7 in the infrared photoelectric sensor detection circuit.

[0124] like Figure 4 As shown in Figure (e) in the figure: the thick tube portion 1.4.8 of the infusion tube is located in the middle of the infrared emitting plate 1.4.1 and the infrared receiving plate 1.4.4 in the infrared photoelectric sensor 1.4.

[0125] The Vd(n) represents the dripping rate of the infusion liquid per minute, and the unit is set to drops / minute, and (n) is the nth measurement.

[0126] like Figure 2 As shown: the communication module 1.5 is composed of a wireless communication module with a working frequency of 2.4G, and a Zigbee module, a WIFI module, a Lora module, and a BTM module are selected respectively, which are used to connect to a router 3 through an intelligent gateway 2, and then the router 3 is connected to the Internet 4, and relevant data communication is carried out through the Internet 4, and the relevant data of the transparent transmission is transmitted to a cloud server 5, and the cloud server 5 then transmits the relevant data of the transparent transmission to the relevant background operation management software 6 running in D computers and the relevant APP 7 running in E mobile phones through the Internet 4.

[0127] The communication module 1.5 transparently transmits relevant data in two ways: uplink transmission and downlink reception.

[0128] The communication module 1.5 uploads and sends relevant data, and the main control 1.2 performs operation control according to functional requirements. When the main control 1.2 determines that the relevant data needs to be uploaded and sent, the power of the communication module 1.5 is turned on, the communication module 1.5 starts to work, and the communication module 1.5 starts to connect to the network and transmit transparently, and upload and send relevant data.

[0129] The communication module 1.5 transmits and receives relevant data, and the main control 1.2 performs operation control according to the timing reception and transmission relevant data. When the main control 1.2 determines that the timing has arrived and it is necessary to transmit and receive relevant data, the power of the communication module 1.5 is turned on to make the communication module 1.5 work, and the communication module 1.5 starts to connect to the network and transmit transparently, and transmit and receive relevant data.

[0130] like Figure 2 As shown: the peripheral control circuit 1.6 is composed of a touch switch, which is used to turn on the power supply and function control.

[0131] like Figure 2 As shown: the display control circuit 1.7 is composed of a display driving circuit, a display and an LED.

[0132] The display control circuit 1.7 is based on the needs of the main control 1.2, and the main control 1.2 controls the display driving circuit to drive the display and LED to issue visible information for prompts and alarms of various states.

[0133] like Figure 2 As shown: the sound control circuit 1.8 is composed of an audio driving circuit, a speaker and a buzzer.

[0134] The sound control circuit 1.8 is based on the needs of the main control 1.2. The main control 1.2 controls the audio driving circuit to drive the speaker and buzzer to emit various prompt sounds for prompts and alarms of various states.

[0135] like Figure 5 As shown: the low-power IoT intelligent infusion monitoring terminal 1, the sensor structures of the capacitive sensor 1.3 and the infrared photoelectric sensor 1.4 of the low-power IoT intelligent infusion monitoring terminal 1 are integrated component structures, which effectively reduce detection interference and facilitate installation, debugging and quality inspection. And the capacitive sensor 1.3 used to detect whether there is infusion liquid in the thin tube part 1.3.5 of the infusion tube is located above the infrared photoelectric sensor 1.4 used to detect the dripping speed of the infusion liquid in the thick tube part 1.4.8 of the infusion tube.

[0136] like Figure 5 As shown: the infusion liquid to be detected in the infusion tube first passes through the thin tube portion 1.3.5 of the infusion tube, flows through the capacitive sensor 1.3, and then passes through the thick tube portion 1.4.8 of the infusion tube, and flows through the infrared photoelectric sensor 1.4.

[0137] like Figure 2-Figure 4 As shown: the low-power IoT intelligent infusion monitoring terminal 1, the internal control circuit of the low-power IoT intelligent infusion monitoring terminal 1 is a multi-core structure, which is composed of COMS single-chip microcomputer MCU1 in the main control 1.2, COMS single-chip microcomputer MCU21.3.3 in the capacitive sensor 1.3 and COMS single-chip microcomputer MCU31.4.7 in the infrared photoelectric sensor 1.4. This structure effectively avoids the disadvantage that the single-chip microcomputer cannot work in time-sharing, and improves the operation speed of the low-power IoT intelligent infusion monitoring terminal 1.

[0138] like Figure 1 , Figure 3 and Figure 5 As shown: the low-power IoT intelligent infusion monitoring terminal 1, the low-power IoT intelligent infusion monitoring terminal 1 has three operating methods to turn on the device: one is to turn it on by operating the touch switch; the second is to scan the corresponding QR code on the device through the relevant APP7 running in the mobile phone to turn it on; the third is to remotely control the device to turn it on through the relevant APP7 running in the mobile phone.

[0139] like Figure 2 and Figure 3As shown: the low-power IoT intelligent infusion monitoring terminal 1, after the low-power IoT intelligent infusion monitoring terminal 1 is powered on, enters the initialization state, the main control 1.2 implements continuous power supply to the capacitive sensor 1.3, and immediately performs no-load detection when the infusion tube is not installed on the detection bracket of the capacitive sensor 1.3. At this time, the capacitive sensor 1.3 will detect the no-load capacitance value C(0) detected by the COMS microcontroller MCU21.3.3 in the capacitive sensor detection circuit, and transmit it to the COMS microcontroller MCU1 in the main control 1.2. The main control 1.2 stores, calculates and makes logical judgments on the relevant data, and uses the results to control other circuits and manage power consumption.

[0140] like Figure 2-Figure 5 As shown: the low-power IoT intelligent infusion monitoring terminal 1, after the low-power IoT intelligent infusion monitoring terminal 1 is powered on, when the thin tube part 1.3.5 of the infusion tube is installed on the detection bracket of the capacitive sensor 1.3 and the thick tube part 1.4.8 of the infusion tube is installed on the detection bracket of the infrared photoelectric sensor 1.4, the capacitive sensor 1.3 starts normal sampling detection, and transmits the capacitance value C(n) related data obtained by the detection sampling to the COMS microcontroller MCU1 in the main control 1.2. When the main control 1.2 stores, calculates and logically judges the relevant data, it is found that C(n+1)=C(n), C(n)>C(0) , the main control 1.2 provides intermittent power to the infrared photoelectric sensor 1.4, allowing the infrared photoelectric sensor 1.4 to start intermittent work. At this time, the infrared photoelectric sensor 1.4 detects the dripping rate Vd(n) of the infusion liquid in the thick tube part 1.4.8 of the infusion tube, and transmits the detected dripping rate Vd(n) of the infusion liquid to the COMS microcontroller MCU1 in the main control 1.2 through the COMS microcontroller MCU31.4.7 in the infrared photoelectric sensor detection circuit. The main control 1.2 stores, calculates and makes logical judgments on the relevant data of Vd(n), and uses the results to control other circuits and manage power consumption.

[0141] like Figure 2-Figure 5As shown: a low-power Internet of Things intelligent infusion monitoring terminal 1, after the low-power Internet of Things intelligent infusion monitoring terminal 1 is powered on, during the infusion detection process, when the main control 1.2 stores, calculates and logically judges the relevant data, it is found that C(n+1)=C(n), C(n)>C(0), and it is detected that the dripping rate Vd(n) detection value of the dripping of the infusion liquid in the thick tube part 1.4.8 of the infusion tube is not within the set value range, or the dripping rate Vd(n) of the infusion liquid is 0, the main control 1.2 determines that the infusion work is abnormal, and at this time the communication module 1.5 immediately connects to the Internet 4 through the intelligent gateway 2 and the router 3 to communicate relevant data and transparently transmit relevant data, that is, upload and send relevant information and download and receive remote control information. At the same time, the display control circuit 1.7 and the sound control circuit 1.8 respectively send various visible information and prompt sounds to provide status prompts for abnormal infusion work.

[0142] like Figure 2-Figure 5 As shown: the low-power Internet of Things intelligent infusion monitoring terminal 1, after the low-power Internet of Things intelligent infusion monitoring terminal 1 is powered on, during the infusion detection process, when the main control 1.2 stores, calculates and logically judges the relevant data, it is found that C(n+1)=C(n), C(n)>C(0), and when it is detected that the dripping rate Vd(n) of the infusion liquid in the thick tube part 1.4.8 of the infusion tube is within the set value range, the main control 1.2 determines that the infusion is working normally, and starts the communication module 1.5 at a fixed time, connects to the Internet 4 through the intelligent gateway 2 and the router 3, performs relevant data communication, and transparently transmits relevant data, that is, uploads and sends relevant information and downloads and receives remote control information. At the same time, the display control circuit 1.7 and the sound control circuit 1.8 respectively send various visible information and prompt sounds to provide a status prompt for the normal infusion work.

[0143] like Figure 2-Figure 5 As shown: a low-power IoT intelligent infusion monitoring terminal 1, after the low-power IoT intelligent infusion monitoring terminal 1 is powered on, during the infusion detection process, when the main control 1.2 stores, calculates and logically judges the relevant data and finds that C(n+1)=C(n), C(n)=C(0), and detects that the dripping rate Vd(n) of the infusion liquid in the thick tube part 1.4.8 of the infusion tube is zero, the main control 1.2 determines that the infusion work is completed and turns off the working power of the infrared photoelectric sensor 1.4. At this time, the communication module 1.5 immediately connects to the Internet 4 through the intelligent gateway 2 and the router 3 to communicate relevant data and transmit relevant data, that is, upload and send relevant information and download and receive remote control information. At the same time, the display control circuit 1.7 and the sound control circuit 1.8 respectively send various visible information and prompt sounds to provide a status prompt for the completion of the infusion work.

[0144] like Figure 6As shown: the low-power IoT intelligent infusion monitoring terminal 1, according to the needs of many different application scenarios, the low-power IoT intelligent infusion monitoring terminal 1 respectively networks A low-power IoT intelligent infusion monitoring terminal 1, B intelligent gateway 2, C router 3, Internet 4, cloud server 5, D related background operation management software running in the computer 6, and E related APP 7 running in the mobile phone to form a variety of basic low-power IoT intelligent infusion monitoring systems. The various basic low-power IoT intelligent infusion monitoring systems are re-networked through the cloud server 5 to form a low-power IoT intelligent infusion monitoring cloud platform system.

[0145] The A is pre-set according to the networking needs of the application scenario and is represented by a natural number. Only when A=1, the number A is omitted and not marked. For example: when A=1, at this time, A low-power IoT intelligent infusion monitoring terminals 1 described in the present invention are described as a low-power IoT intelligent infusion monitoring terminal 1 described in the present invention. When A is a natural number greater than 1, such as A=2, at this time, A low-power IoT intelligent infusion monitoring terminals 1 described in the present invention are described as 2 low-power IoT intelligent infusion monitoring terminals 1 described in the present invention, and so on.

[0146] The B is pre-set according to the networking requirements of the application scenario and is represented by a natural number. Only when B=1, the number B is omitted. For example, when B=1, there are B smart gateways 2, which are described as smart gateways 2. When B is a natural number greater than 1, such as B=2, there are B smart gateways 2, which are described as 2 smart gateways 2, and so on.

[0147] The C is preset according to the networking requirements of the application scenario and is represented by a natural number. Only when C=1, the number C is omitted. For example, when C=1, C routers 3 are described as router 3. When C is a natural number greater than 1, such as C=2, C routers 3 are described as 2 routers 3, and so on.

[0148] The D is pre-set according to the networking requirements of the application scenario and is represented by a natural number. Only when D=1, the number D is omitted and not marked. For example: when D=1, the relevant background operation management software 6 running in D computers is described as the relevant background operation management software 6 running in the computer. When D is a natural number greater than 1, such as D=2, the relevant background operation management software 6 running in D computers is described as the relevant background operation management software 6 running in 2 computers, and so on.

[0149] The E is pre-set according to the networking requirements of the application scenario and is represented by a natural number. Only when E=1, the number E is omitted and not marked. For example: when E=1, the relevant APP7 running in E mobile phones is described as the relevant APP7 running in the mobile phone. When E is a natural number greater than 1, such as E=2, the relevant APP7 running in E mobile phones is described as the relevant APP7 running in 2 mobile phones, and so on.

[0150] When A, B and C are all 1 at the same time, a low-power IoT intelligent infusion monitoring terminal 1, an intelligent gateway 2, a router 3, the Internet 4, a cloud server 5, related background operation management software 6 running in D computers, and related APPs 7 running in E mobile phones are networked to form the simplest low-power IoT intelligent infusion monitoring system in a single base type.

[0151] The technical means disclosed in the scheme of the present invention are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical schemes composed of any combination of the above technical features. For ordinary technicians in this technical field, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications are also regarded as the protection scope of the present invention. In addition, the above is only an example of the implementation of the present invention, and is not intended to limit the present invention. Any addition, subtraction, modification, or equivalent replacement within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A low-power IoT intelligent infusion monitoring terminal (1), characterized by: Used for infusion monitoring in medical treatment; a low-power IoT intelligent infusion monitoring terminal (1), an intelligent gateway (2), a router (3), the Internet (4), a cloud server (5), relevant background operation management software (6) running in D computers, and relevant APPs (7) running in E mobile phones are networked to form the simplest low-power IoT intelligent infusion monitoring system in a single base type; The D and E are preset according to the networking requirements of the application scenario and are represented by natural numbers; The low-power Internet of Things intelligent infusion monitoring terminal (1) is composed of a power supply and protection circuit (1.1), a main control (1.2), a capacitive sensor (1.3), an infrared photoelectric sensor (1.4), a communication module (1.5), a peripheral control circuit (1.6), a display control circuit (1.7), and a sound control circuit (1.8); The power supply and protection circuit (1.1) is composed of a lithium battery charge and discharge protection chip, a low-power DC-DC voltage regulator chip, and a voltage and current detection and protection chip, and is used for lithium battery charge and discharge protection, voltage stabilization of the working power supply, and protection against overload, overvoltage and overcurrent during use; The main control (1.2) is composed of a micro-power COMS single-chip microcomputer MCU1 and a memory EAROM. The main control (1.2) is used to store, calculate and make logical judgments on relevant data, and use the results to control all control circuits of the low-power Internet of Things intelligent infusion monitoring terminal (1) and manage power consumption; The main control (1.2) manages the power consumption of all control circuits of the low-power IoT intelligent infusion monitoring terminal (1), and comprehensively optimizes the power consumption, working mode, working time, and related control functions and power supply modes of all control circuits of the low-power IoT intelligent infusion monitoring terminal (1). On the premise of satisfying the control function, in order to reduce power consumption and extend standby time, and ensure that the low-power IoT intelligent infusion monitoring terminal (1) can continuously monitor and operate for 30 working days when using a 18650 lithium battery as a power supply, four power supply modes are formulated: continuous power supply mode, intermittent power supply mode, timed power supply mode, and required power supply mode; The continuous power supply mode refers to a power supply mode that continuously supplies power to the power supply of the control circuit of the low-power IoT intelligent infusion monitoring terminal (1); To extend the standby time, only control circuits with standby and operating currents in the microampere range are suitable for this power supply method; The intermittent power supply mode refers to a power supply mode in which the main control (1.2) uses pulse oscillation to supply power to the power supply of the control circuit of the low-power IoT intelligent infusion monitoring terminal (1) in order to reduce power consumption and prolong standby time, while satisfying the control function. The timing power supply mode refers to a power supply mode in which the main control (1.2) determines the power supply time and power supply duration according to the setting of relevant clocks in order to reduce power consumption and prolong standby time, while satisfying the control function, and supplies power to the power supply of the control circuit of the low-power IoT intelligent infusion monitoring terminal (1); The on-demand power supply mode refers to a power supply mode in which the main control (1.2) supplies power to the power supply of the control circuit of the low-power IoT intelligent infusion monitoring terminal (1) according to the needs of the control function in order to reduce power consumption and prolong standby time, while satisfying the control function; The standby and working currents of the control circuit of the main control (1.2) are both in the microampere level, and after the main control (1.2) is turned on, the power supply is in a continuous power supply mode; The standby and working currents of the control circuit of the capacitive sensor (1.3) are both in the microampere level. According to the functional requirements, the main control (1.2) implements a continuous power supply mode for the power supply of the capacitive sensor (1.3); In order to reduce power consumption and extend standby time, the infrared photoelectric sensor (1.4) implements an intermittent power supply mode for the power supply of the infrared photoelectric sensor (1.4) according to functional requirements, while satisfying the control function. In order to reduce power consumption and extend standby time, the communication module (1.5) implements a demand-based power supply mode for the power supply of the communication module (1.5) when uploading and sending transparent transmission related data according to functional needs, while satisfying the control function; and implements a timed power supply mode for the power supply of the communication module (1.5) when downloading and receiving transparent transmission related data. In order to reduce power consumption and extend standby time, the peripheral control circuit (1.6) implements a continuous power supply mode based on the functional requirements of the main control (1.2) to the power supply of the peripheral control circuit (1.6) while satisfying the control function. In order to reduce power consumption and extend standby time, the display control circuit (1.7) implements a demand-based power supply mode for the power supply of the display control circuit (1.7) according to functional requirements, provided that the control function is met; In order to reduce power consumption and extend standby time, the sound control circuit (1.8) implements a demand-based power supply mode for the power supply of the sound control circuit (1.8) according to functional requirements, provided that the control function is met; The capacitive sensor (1.3) is an integrated component structure, which is composed of a metal parallel plate capacitor (1.3.1) and a capacitive sensor detection circuit on a circuit board, which are placed inside the capacitive sensor together; The metal parallel plate capacitor (1.3.1) is composed of two metal plates (1.3.4) arranged face to face, parallel to each other and symmetrically; The capacitive sensor detection circuit is composed of a resistor (1.3.2) on a circuit board and a COMS single-chip microcomputer MCU2 (1.3.3); The capacitive sensor (1.3) is used to detect whether the thin tube part (1.3.5) of the infusion tube contains infusion liquid, and transmits the detection information to the COMS single-chip computer MCU1 in the main control (1.2) through the COMS single-chip computer MCU2 (1.3.3) in the capacitive sensor detection circuit; The thin tube portion (1.3.5) of the infusion tube is located between two metal plates (1.3.4) in the metal parallel plate capacitor (1.3.1); The infrared photoelectric sensor (1.4) is an integrated component structure, which is composed of an infrared emitting plate (1.4.1) and an infrared receiving plate (1.4.4), which are arranged face to face, parallel and symmetrically and placed inside the infrared photoelectric sensor (1.4); The infrared emitting plate (1.4.1) is composed of a single infrared emitting tube (1.4.2) in the infrared photoelectric sensor detection circuit and a current limiting resistor (1.4.3) of the single infrared emitting tube (1.4.2); The single infrared emitting tube (1.4.2) and the current limiting resistor (1.4.3) of the single infrared emitting tube (1.4.2) are both located on the infrared emitting plate (1.4.1); The infrared receiving plate (1.4.4) is composed of a plurality of infrared receiving tubes (1.4.5-I) in the infrared photoelectric sensor detection circuit, current limiting resistors (1.4.6-I) of the plurality of infrared receiving tubes (1.4.5-I) and a COMS single chip microcomputer MCU3 (1.4.7); (I) in the plurality of infrared receiving tubes (1.4.5-I) and the current limiting resistor (1.4.6-I) of the infrared receiving tubes (1.4.5-I) is the serial number of the same part, represented by a natural number from 1 to 7; The infrared receiving tube (1.4.5-I), the current limiting resistor (1.4.6-I) of the infrared receiving tube (1.4.5-I) and the COMS single-chip computer MCU3 (1.4.7) are all located on the infrared receiving plate (1.4.4); The placement positions of the plurality of infrared receiving tubes (1.4.5-I) are set to be arranged in parallel in two upper and lower rows, cross-staggered, and the infrared receiving tubes (1.4.5-I) in two single rows are arranged in a straight line with equal spacing, which effectively avoids detection blind spots; The infrared photoelectric sensor (1.4) is used to detect the dripping speed Vd(n) of the infusion liquid in the thick tube part (1.4.8) of the infusion tube, and transmit the detection information to the COMS single-chip microcomputer MCU1 in the main control (1.2) through the COMS single-chip microcomputer MCU3 (1.4.7) in the infrared photoelectric sensor detection circuit; The thick tube portion (1.4.8) of the infusion tube is located between the infrared emitting plate (1.4.1) and the infrared receiving plate (1.4.4) of the infrared photoelectric sensor (1.4); The Vd(n) represents the dripping rate of the infusion liquid per minute, and the unit is set to drops / minute, and (n) is the nth measurement; The communication module (1.5) is composed of a wireless communication module with an operating frequency of 2.4G, and a Zigbee module, a WIFI module, a Lora module, and a BTM module are selected respectively, and are used to connect to a router (3) through an intelligent gateway (2), and then the router (3) is connected to the Internet (4), and relevant data communication is performed through the Internet (4), and the relevant data of the transparent transmission is transmitted to a cloud server (5), and the cloud server (5) then transmits the relevant data of the transparent transmission to relevant background operation management software (6) running in D computers and relevant APPs (7) running in E mobile phones through the Internet (4); The communication module (1.5) transparently transmits relevant data in two modes: uplink transmission and downlink reception; The communication module (1.5) uploads and sends relevant data, and the main control (1.2) performs operation control according to functional requirements. When the main control (1.2) determines that relevant data needs to be uploaded and sent, the power supply of the communication module (1.5) is turned on, the communication module (1.5) starts to work, and the communication module (1.5) starts to connect to the network and transparently transmit, and upload and send relevant data; The communication module (1.5) transmits and receives relevant data, and the main control (1.2) performs operation control according to the timing reception and transmission relevant data. When the main control (1.2) determines that the timing has arrived and it is necessary to transmit and receive transparent transmission relevant data, the power of the communication module (1.5) is turned on to make the communication module (1.5) work, and the communication module (1.5) starts to connect to the network and transparently transmit, and transmit and receive relevant data; The peripheral control circuit (1.6) is composed of a touch switch, which is used to turn on the power supply and function control; The display control circuit (1.7) is composed of a display driving circuit, a display and an LED; The display control circuit (1.7) is controlled by the main control (1.2) to drive the display and LED according to the needs of the main control (1.2), and to send out visible information for prompts and alarms of various states; The sound control circuit (1.8) is composed of an audio drive circuit, a speaker and a buzzer; The sound control circuit (1.8) is based on the needs of the main control (1.2), and the main control (1.2) controls the audio driving circuit to drive the speaker and the buzzer to emit various prompt sounds for prompts and alarms of various states; The capacitive sensor (1.3) for detecting whether there is infusion liquid in the thin tube part (1.3.5) of the infusion tube is located above the infrared photoelectric sensor (1.4) for detecting the dripping speed of the infusion liquid in the thick tube part (1.4.8) of the infusion tube; The infusion liquid to be detected in the infusion tube first passes through the thin tube portion (1.3.5) of the infusion tube, flows through the capacitive sensor (1.3), then passes through the thick tube portion (1.4.8) of the infusion tube, and flows through the infrared photoelectric sensor (1.4); The internal control circuit of the low-power IoT intelligent infusion monitoring terminal (1) is a multi-core structure, which is composed of a COMS single-chip microcomputer MCU1 in the main control (1.2), a COMS single-chip microcomputer MCU2 (1.3.3) in the capacitive sensor (1.3), and a COMS single-chip microcomputer MCU3 (1.4.7) in the infrared photoelectric sensor (1.4); The low-power IoT intelligent infusion monitoring terminal (1) has three operation modes for turning on the device: one is to turn it on by operating a touch switch; the second is to turn it on by scanning a corresponding QR code on the device through a related APP (7) running on a mobile phone; and the third is to turn it on by remotely controlling the device through a related APP (7) running on a mobile phone.

2. A low-power IoT intelligent infusion monitoring terminal (1) according to claim 1, characterized in that: After the low-power Internet of Things intelligent infusion monitoring terminal (1) is powered on, it enters an initialization state, and the main control (1.2) continuously supplies power to the capacitive sensor (1.3). When the infusion tube has not yet been installed on the detection bracket of the capacitive sensor (1.3), a no-load detection is immediately performed. At this time, the capacitive sensor (1.3) transmits the detected no-load capacitance value C(0) to the COMS single-chip microcomputer MCU1 in the main control (1.2) through the COMS single-chip microcomputer MCU2 (1.3.3) in the capacitive sensor detection circuit. The main control (1.2) stores, calculates and makes logical judgments on the relevant data, and uses the results to control other circuits and manage power consumption.

3. A low-power IoT intelligent infusion monitoring terminal (1) according to claim 1, characterized in that: After the low-power IoT intelligent infusion monitoring terminal (1) is powered on, when the thin tube part (1.3.5) of the infusion tube is installed on the detection bracket of the capacitance sensor (1.3) and the thick tube part (1.4.8) of the infusion tube is installed on the detection bracket of the infrared photoelectric sensor (1.4), the capacitance sensor (1.3) starts normal sampling detection and transmits the capacitance value C(n) related data obtained by the detection sampling to the COMS single-chip microcomputer MCU1 in the main control (1.2). When the main control (1.2) stores, calculates and logically judges the related data and finds that C(n+1)=C(n) and C(n)>C(0), the main control (1.2) sends a signal to the infrared photoelectric sensor (1.4). The photoelectric sensor (1.4) is intermittently powered, so that the infrared photoelectric sensor (1.4) starts to work intermittently. At this time, the infrared photoelectric sensor (1.4) detects the dripping speed Vd(n) of the infusion liquid in the thick tube part (1.4.8) of the infusion tube, and transmits the value of the dripping speed Vd(n) of the infusion liquid detected by it to the COMS single-chip microcomputer MCU3 (1.4.7) in the infrared photoelectric sensor detection circuit to the COMS single-chip microcomputer MCU1 in the main control (1.2). The main control (1.2) stores, calculates and makes logical judgments on the relevant data of Vd(n), and uses the results to control other circuits and manage power consumption.

4. A low-power IoT intelligent infusion monitoring terminal (1) according to claim 1, characterized in that After the low-power Internet of Things intelligent infusion monitoring terminal (1) is powered on, during the infusion detection process, when the main control (1.2) stores, calculates and logically judges relevant data and finds that C(n+1)=C(n), C(n)>C(0), and detects that the dripping speed Vd(n) of the infusion liquid in the thick tube part (1.4.8) of the infusion tube is not within the set value range, or the dripping speed Vd(n) of the infusion liquid is 0, the main control (1.2) determines that the infusion operation is abnormal. At this time, the communication module (1.5) immediately connects to the Internet (4) through the intelligent gateway (2) and the router (3) to communicate relevant data and transparently transmit relevant data, that is, upload and send relevant information and download and receive remote control information. At the same time, the display control circuit (1.7) and the sound control circuit (1.8) respectively send various visible information and prompt sounds to provide status prompts for abnormal infusion operation.

5. The low-power IoT intelligent infusion monitoring terminal (1) according to claim 1 is characterized in that: After the low-power Internet of Things intelligent infusion monitoring terminal (1) is powered on, during the infusion detection process, when the main control (1.2) stores, calculates and logically judges the relevant data and finds that C(n+1)=C(n), C(n)>C(0), and detects that the dripping speed Vd(n) of the infusion liquid in the thick tube part (1.4.8) of the infusion tube is within the set value range, the main control (1.2) determines that the infusion is working normally, starts the communication module (1.5) at a fixed time, connects to the Internet (4) through the intelligent gateway (2) and the router (3), performs relevant data communication, transparently transmits relevant data, that is, uploads and sends relevant information and downloads and receives remote control information, and at the same time, the display control circuit (1.7) and the sound control circuit (1.8) respectively send various visible information and prompt sounds to provide a status prompt of the normal infusion work.

6. The low-power IoT intelligent infusion monitoring terminal (1) according to claim 1 is characterized in that: After the low-power Internet of Things intelligent infusion monitoring terminal (1) is powered on, during the infusion detection process, when the main control (1.2) stores, calculates and logically judges relevant data and finds that C(n+1)=C(n), C(n)=C(0), and detects that the dripping speed Vd(n) of the infusion liquid in the thick tube part (1.4.8) of the infusion tube is zero, the main control (1.2) determines that the infusion work is finished and turns off the working power of the infrared photoelectric sensor (1.4). At this time, the communication module (1.5) immediately connects to the Internet (4) through the intelligent gateway (2) and the router (3) to carry out relevant data communication and transparently transmit relevant data, that is, upload and send relevant information and download and receive remote control information. At the same time, the display control circuit (1.7) and the sound control circuit (1.8) respectively send various visible information and prompt sounds to provide a status prompt of the end of the infusion work.

7. The low-power IoT intelligent infusion monitoring terminal (1) according to claim 1 is characterized in that: The low-power Internet of Things intelligent infusion monitoring terminal (1) is configured to form a plurality of basic types of new low-power Internet of Things intelligent infusion monitoring systems after networking A, B intelligent gateways (2), C routers (3), the Internet (4), a cloud server (5), D related background operation management software (6) running on a computer, and E related APPs (7) running on a mobile phone according to the needs of many different application scenarios; the plurality of basic types of new low-power Internet of Things intelligent infusion monitoring systems are re-networked through the cloud server (5) to form a new low-power Internet of Things intelligent infusion monitoring cloud platform system after networking; The A is preset according to the networking requirements of the application scenario and is represented by a natural number. Only when A=1, the number A is omitted and not marked; when A=1, A low-power IoT intelligent infusion monitoring terminals (1) are described as a low-power IoT intelligent infusion monitoring terminal (1); when A is a natural number greater than 1, A=2, A low-power IoT intelligent infusion monitoring terminals (1) are described as 2 low-power IoT intelligent infusion monitoring terminals (1), and so on; The B is preset according to the networking requirements of the application scenario and is represented by a natural number. Only when B=1, the number B is omitted and not marked; when B=1, there are B smart gateways (2), which are described as smart gateways (2); when B is a natural number greater than 1, B=2, there are B smart gateways (2), which are described as 2 smart gateways (2), and so on; The C is preset according to the networking requirements of the application scenario and is represented by a natural number. Only when C=1, the number (C) is omitted and not marked; when C=1, there are C routers (3), which are described as routers (3); when C is a natural number greater than 1, C=2, there are C routers (3), which are described as 2 routers (3), and so on; The D is preset according to the networking requirements of the application scenario and is represented by a natural number. Only when D=1, the number (D) is omitted and not marked; when D=1, the relevant background operation management software (6) running in D computers is described as the relevant background operation management software (6) running in the computer; when D is a natural number greater than 1, D=2, the relevant background operation management software (6) running in D computers is described as the relevant background operation management software (6) running in 2 computers, and so on; The E is preset according to the networking requirements of the application scenario and is represented by a natural number. Only when E=1, the number (E) is omitted and not marked; when E=1, the related APPs (7) running in E mobile phones are described as the related APPs (7) running in the mobile phones; when E is a natural number greater than 1, E=2, the related APPs (7) running in E mobile phones are described as the related APPs (7) running in 2 mobile phones, and so on; When A, B and C are all 1 at the same time, a low-power Internet of Things intelligent infusion monitoring terminal (1), an intelligent gateway (2), a router (3), the Internet (4), a cloud server (5), relevant background operation management software (6) running in D computers, and relevant APPs (7) running in E mobile phones are networked to form the simplest low-power Internet of Things intelligent infusion monitoring system in a single basic type.

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