Non-contact multi-parameter monitor

Abstract

The utility model discloses a non-contact multi-parameter monitor which comprises a radar module, an environment detection module, a snore detection module, a man-machine interaction module, a communication module, a power module and a main control core board. The intelligent sleep monitoring system can monitor real-time vital signs, snore frequency, environment quality and sleep quality of a user, specifically, by monitoring various parameters, the sleep quality of the human body and the surrounding environment are monitored, the environment parameters of the optimal sleep state are recorded, and the sleep quality of the user is improved. And surrounding equipment such as an air purifier, an air conditioner and a humidifier are linked to ensure that the indoor environment is optimal, so that the sleep is most comfortable.

Description

Technical Field

[0001] The utility model relates to the field of intelligent equipment and health management, and in particular to a non-contact multi-parameter monitor. Background Art

[0002] In recent years, sleep problems have attracted more and more attention, and good sleep is essential for physical and mental health. However, the various pressures and bad habits in modern life have caused many people to face problems such as lack of sleep and insomnia. The existence of these problems may increase the risk of health problems such as cardiovascular disease, obesity, and diabetes, and also have a negative impact on emotional regulation and cognitive ability. In order to monitor sleep quality and improve sleep problems, people have developed a variety of devices. However, most of the existing sleep quality monitoring technologies are based on contact devices, such as polysomnography. These devices may interfere with sleep during use, such as friction and discomfort, so they are not convenient to use. In recent years, the development of bio-radar and fiber optic BCG sensing technology has provided a new technical fulcrum for sleep behavior perception. Bio-radar is a new type of monitoring technology that can continuously emit frequency modulation or pulse signals to accurately monitor the tiny displacements caused by physiological behaviors such as heartbeat and breathing within a certain range. Fiber optic BCG sensors can be installed in carriers such as seats, mattresses, and pillows to monitor the weak pressure generated by human life activities, and can calculate vital signs such as breathing rate, breathing amplitude, heart rate, in-position and out-of-position, sleep quality, and fatigue level. Although these technologies provide new possibilities for monitoring sleep quality, they mainly focus on monitoring physiological indicators and cannot predict possible discomfort risks in advance. Sleep quality is not only affected by physical condition, but also by environmental factors. Environmental factors that affect sleep quality include noise, light, temperature, and air quality. Noise can interfere with sleep, too strong or insufficient light may affect people's sleep and wake-up time, and too high or too low temperature will affect sleep comfort. In addition, the quality of air can also affect sleep, such as excessive carbon dioxide and volatile organic compounds may lead to poor sleep. Considering these environmental factors in sleep monitoring is crucial to understanding and improving sleep quality. In order to achieve more comprehensive sleep monitoring, it is necessary to integrate sensor technology to perceive environmental factors in order to better assess the impact of the sleeping environment on sleep quality. By collecting environmental data, a more comprehensive understanding of sleep quality can be achieved, and personalized suggestions can be provided to improve the sleeping environment. In summary, although bioradar and fiber optic technology are advanced in sleep quality monitoring, environmental factors need to be taken into account to fully evaluate sleep quality. By integrating environmental sensor technology, the impact of the sleeping environment on individuals can be better understood, and personalized suggestions can be provided to improve sleep quality. Utility Model Content

[0003] In view of the defects of the prior art, the technical problem to be solved by the utility model is to provide a non-contact multi-parameter monitor that can monitor the sleep quality and health status of the human body, and can also detect and regulate the ambient temperature, humidity, oxygen content and air quality.

[0004] The utility model provides a non-contact multi-parameter monitor, characterized in that it comprises a radar module, an environment detection module, a snoring detection module, a human-computer interaction module, a communication module, a power module, and a main control core board, wherein the radar module, the environment detection module, the snoring detection module, the human-computer interaction module, and the communication module are separately connected to the main control core board, and the power module provides power to the radar module, the environment detection module, the snoring detection module, the human-computer interaction module, the communication module, and the main control core board respectively;

[0005] Optionally, the non-contact multi-parameter monitor of the present invention may also have the following additional technical features:

[0006] Preferably, the radar module includes a radar transmitting antenna, a receiving antenna, a radar main control chip and a serial peripheral interface (SPI interface);

[0007] Furthermore, the radar main control chip integrates a transmitter (TX), a receiver (RX), a low noise amplifier (LNA), a digital-to-analog converter (DAC), and a system-on-chip (SOC) of a pulse generator.

[0008] Preferably, the environment detection module includes a temperature sensor, a humidity sensor, a dust sensor and a VOC sensor.

[0009] Preferably, the snoring detection module comprises a high-sensitivity microphone and a variable gain amplifier circuit.

[0010] Preferably, the human-machine interaction control module is composed of an LCD screen, a capacitive touch panel and a driving board.

[0011] Preferably, the communication module consists of a WIFI module, a Bluetooth chip and an antenna.

[0012] Preferably, the power module adopts a power tree design, including BUCK, LDO and PMIC.

[0013] Preferably, the main control core board includes a main control chip, RAM (random access unit), FLASH (flash memory), a crystal oscillator, DDR (dynamic random access unit), and EMMC (embedded multimedia card).

[0014] Compared with the prior art, the technical features of the utility model are:

[0015] 1. The radar module is integrated with snoring monitoring to analyze central apnea events during sleep, which can further improve the accuracy of sleep quality monitoring and help users conduct initial screening for sleep apnea.

[0016] 2. The non-contact multi-parameter monitor transmits sleep status and environmental quality to the cloud platform for analysis. By collecting and analyzing a large amount of user data, a sleep model and an environmental quality model can be established to provide users with personalized sleep and environmental improvement suggestions. At the same time, through long-term tracking and analysis, individual sleep disorders and environmental-related problems can be identified and predicted, and personalized prevention and intervention measures can be provided.

[0017] The technical effects of the utility model are:

[0018] 1. Accurate sleep monitoring: The radar module can monitor physiological signals such as human breathing, heart rate and body movement in a non-contact manner, and can accurately monitor the quality of sleep and sleep cycle in real time, providing users with detailed sleep data analysis. 2. Automated environmental adjustment: Combined with the technology of room environment monitoring, the non-contact multi-parameter monitor can automatically adjust the room's temperature, humidity, light and other environmental conditions according to the monitored environmental parameters, such as temperature, humidity, light, etc., to provide a more comfortable sleeping environment. 3. Sleep quality analysis: Through the comprehensive analysis of the sleep signals monitored by the radar module and the room environment monitoring data, the sleep quality can be evaluated and relevant suggestions can be provided, such as improving the sleeping environment, to help users improve their sleep quality. 4. Real-time alarm and early warning: The non-contact multi-parameter monitor can issue alarms and early warnings in time by analyzing the physiological signals monitored by the radar module, such as abnormal breathing, heart rate changes, etc., as well as abnormalities in the room environment, such as high temperature and high humidity, to remind users or relevant personnel to take necessary measures to protect the health and safety of users. Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0020] Figure 1 This is a structural framework diagram of the non-contact multi-parameter monitor of the present utility model.

[0021] Figure 2 This is the appearance structure diagram of the non-contact multi-parameter monitor of the present utility model.

[0022] Figure 3 This is a diagram of the user interaction interface of the non-contact multi-parameter monitor of the present utility model.

[0023] Figure 4A control relationship diagram of the non-contact multi-parameter monitor and indoor environment adjustment equipment of the utility model. DETAILED DESCRIPTION Example

[0024] like Figure 1 As shown, a non-contact multi-parameter monitor is characterized in that it includes a radar module, an environment detection module, a snoring detection module, a human-computer interaction module, a power module, and a main control core board. The radar module, the environment detection module, the snoring detection module and the human-computer interaction module are separately connected to the main control core board, and the power module provides power to the environment detection module, the radar module and the main control core module respectively. Figure 2 This is the appearance diagram of the non-contact multi-parameter monitor.

[0025] The radar module includes a radar transmitting antenna, a receiving antenna, a radar control chip and a serial peripheral interface (SPI interface); the radar control chip integrates a transmitter (TX), a receiver (RX), a low noise amplifier (LNA), a digital-to-analog converter (DAC), and a system-on-chip (SOC) of a pulse generator. The environmental detection module includes a temperature sensor, a humidity sensor, a dust sensor and a VOC sensor. The snoring detection module includes a high-sensitivity microphone and a variable gain amplifier circuit.

[0026] The human-machine interaction control module is composed of an LCD screen, a capacitive touch panel and a driver board. The power module adopts a power tree design, including BUCK, LDO and PMIC. The communication module includes a WIFI module, a Bluetooth chip and an antenna. The main control core board includes a main control chip, RAM (random access unit), FLASH (flash memory), a crystal oscillator, DDR (dynamic random access unit), and EMMC (embedded multimedia card).

[0027] The composition and working mode of each module are as follows:

[0028] The radar transmitting antenna in the radar module transmits electromagnetic waves of a specified frequency band, and receives the reflected electromagnetic wave signals through the receiving antenna. The received signal contains micro-motion signals of the human body surface, including weak fluctuations or vibrations of the body surface (mainly the chest and abdominal cavity) caused by breathing or heartbeat physiological activities. The radar control chip analyzes the micro-motion signals of the human body surface received by the radar, and after filtering, low-noise amplification, and analog-to-digital conversion, it can output digital signals to the main control chip of the main control core board through the SPI interface for algorithm calculation, and separate and extract the breathing or heartbeat signals corresponding to the physiological micro-motion, and calculate the sleep quality through the sleep staging algorithm based on the heart rate, breathing (including frequency and chest fluctuation), and body movement.

[0029] The main control chip saves 1 minute of real-time data synchronously through the external FLASH, communicates with the radar module through the SPI interface, and then the communication module sends the real-time data. When the network is disconnected, the FLASH offline real-time data is turned on to save, and when the network is reconnected, the real-time data saved in the FLASH during the last interruption is uploaded. When the power is off, because the radar data 1 minute before the power outage is saved, the data saved before the power outage will continue to be uploaded when the power is restored, thus avoiding the impact of power outages and network disconnection on data continuity.

[0030] The environment detection module includes temperature sensor, humidity sensor, dust sensor and VOC sensor. The module transmits data with the main control board through RS485 bus. The temperature sensor tests the temperature, the humidity sensor tests the humidity, the dust sensor tests the PM2.5 and PM10, and the VOC sensor tests the formaldehyde concentration and CO2 concentration. The temperature sensor, humidity sensor, dust sensor and VOC sensor can send data to the main control core board in real time through the serial port in a specific data format.

[0031] The snoring detection module detects the snoring of the user through a high-sensitivity microphone and a variable gain amplifier circuit, and uses a convolutional neural network method to classify the snoring caused by the user's obstructive sleep apnea and central sleep apnea, to achieve preliminary judgment of different pathologies and help improve the accuracy of sleep quality assessment.

[0032] The human-computer interaction module consists of an LCD screen, a capacitive touch panel and a driver board, and is connected to the main control chip of the main control core board through the MIPI / HDMI / LVDS / I2C interface. The module is mainly used to display the user's heart rate, respiratory rate, sleep stage report of the day and real-time environmental parameters. The user can set parameters and alarm functions through the touch screen, and can understand real-time monitoring data through the user interaction interface. The user interaction interface of a typical human-computer interaction module is as follows: Figure 3 As shown, Figure 3 The upper left corner shows the real-time temperature, humidity, PM2.5 index, and PM10 index, and the lower left corner shows the physical data. The bottom left shows popular science knowledge, daily exercise, healthy diet, and contact doctor functions. The right side shows the user's specific sleep analysis report for the day.

[0033] The power module adopts a power tree design, including a buck regulator (BUCK), a low dropout regulator (LDO) and a power management chip (PMIC) for mixed power supply. The power module obtains power from the mains through analog-to-digital (AC-DC) conversion, BUCK conversion, and LDO conversion, and provides power that meets the design requirements on each power rail of the circuit. The power module takes into account both low noise and low power consumption. It is stable and reliable, and can achieve the best results in terms of volume, efficiency, and noise floor.

[0034] The main control core board includes a main control chip, RAM (random access unit), FLASH (flash memory), crystal oscillator, DDR (dynamic random access unit), and EMMC (embedded multimedia card). The main control chip uses RK3399 to cooperate with external DDR and EMMC to realize large-capacity memory and external flash memory, so that the utility model supports large-screen display, supports large data storage, and supports the Android operating system, and can realize smooth operation of the human-computer interaction interface. Specifically, the main control chip obtains and calculates the human micro-motion signal output by the radar control chip through the SPI interface, and obtains the air quality data output by the environmental quality detection module through another serial port. The two data are processed to generate curves of breathing rate, heart rate, and various air concentrations, which are presented in the touch and display module. The user can click on the screen, and after the touch panel receives the relative coordinates of the user's touch screen, it sends the coordinates to the main control chip through the I2C interface to confirm the touch point of the screen position, thereby realizing human-computer interaction. The main control chip can also transmit data to the background through the WIFI module, and the background can also send data to the setting parameters to the main control chip through the WIFI module. The main control chip will set the alarm threshold according to the setting information transmitted from the human-computer interaction interface or the Internet. When the corresponding parameter exceeds the threshold, the device will alarm, such as sending a text message reminder to the associated guardian. Figure 4 This is a control relationship diagram of non-contact multi-parameter monitoring and indoor environment adjustment equipment. The non-contact multi-parameter monitor controls air conditioners, humidifiers, air purifiers, oxygen generators and other equipment through WIFI / Bluetooth.

[0035] In the present invention, the front of the radar module needs to face the chest of the user, so that the user's breathing rate and heart rate can be obtained more accurately. In order to facilitate the user to view the monitored data, the LCD screen interactive interface is designed to be 120° with the horizontal plane and facing the user. The environmental detection module is designed on the side of the monitor and is designed with small holes for air circulation to the outside world, so as to accurately detect the air quality. The present invention also supports saving the monitoring data in an external USB flash drive, floppy disk or other commonly used storage media.

[0036] Application Example 1

[0037] A user in Beijing has been using a non-contact multi-parameter monitor since December 2022. The device can monitor the user's various vital signs during sleep in real time, such as heart rate 70bpm, respiratory rate 10bpm, body movement, snoring 10dB, frequency 5bpm, and comprehensive analysis shows that the user's sleep quality is 70 points (out of 100) every night, and the sleep apnea index is 20. At the same time, it records various parameters of the sleeping environment, such as temperature, humidity, PM2.5, PM10, and carbon dioxide concentration parameters. The background intelligent algorithm is used to build the user's optimal sleep parameter model, and the background remote control system automatically turns on the air conditioner, humidifier, air purifier, and ventilation system to adjust the indoor environment, so that the user can achieve the best sleep state under the conditions of room temperature 25°C, humidity 50%, PM2.5 10ug / m³, PM10 20ug / m³, and carbon dioxide concentration 1000ppm. When the device in the environment fails to turn on, the environmental parameters deteriorate, and reach the worst sleep parameter alarm threshold, such as room temperature 30°C, humidity 10%, PM2.5 100ug / m³, PM10200ug / m³, and carbon dioxide concentration 4000ppm, the device will generate an alarm.

Claims

1. A non-contact multi-parameter monitor, characterized in that: It includes a radar module, an environment detection module, a snoring detection module, a human-computer interaction module, a communication module, a power module, and a main control core board. The radar module, the environment detection module, the snoring detection module, the human-computer interaction module, and the communication module are separately connected to the main control core board, and the power module provides power to the radar module, the environment detection module, the snoring detection module, the human-computer interaction module, the communication module, and the main control core board respectively; The radar module includes a radar transmitting antenna, a receiving antenna, a radar main control chip and a serial peripheral interface; the radar main control chip integrates a transmitter, a receiver, a low-noise amplifier, a digital-to-analog converter, and a pulse generator on a chip.

2. The non-contact multi-parameter monitor according to claim 1, characterized in that: The environment detection module includes a temperature sensor, a humidity sensor, a dust sensor and a VOC sensor.

3. The non-contact multi-parameter monitor according to claim 1, characterized in that: The snoring detection module includes a high-sensitivity microphone and a variable gain amplifier circuit.

4. The non-contact multi-parameter monitor according to claim 1, characterized in that: The human-computer interaction module is composed of an LCD screen, a capacitive touch panel and a driving board.

5. The non-contact multi-parameter monitor according to claim 1, characterized in that: The communication module is composed of a WIFI module, a Bluetooth chip and an antenna.

6. The non-contact multi-parameter monitor according to claim 1, characterized in that: The power module adopts a power tree design, including a buck regulator, a low voltage dropout regulator and a power management chip.

7. The non-contact multi-parameter monitor according to claim 1, characterized in that: The main control core board comprises a main control chip, a random access unit, a flash memory, a crystal oscillator, a dynamic random access memory unit and an embedded multimedia card.

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