Portable multi-vital sign monitoring device and method for personnel in mines capable of self-power supply

Abstract

The present application discloses a self-powered portable multiple vital signs monitoring device and method for personnel in mines, wherein the device comprises: a monitoring vest for monitoring the heart sound data of personnel; a monitoring bracelet for monitoring the blood oxygen data, heart rate data and body temperature data of personnel. The present application can monitor multiple vital signs of personnel and effectively ensure the life safety of personnel.

Description

Technical Field

[0001] The present application relates to the field of vital signs monitoring, and in particular to a self-powered portable multiple vital signs monitoring device and method for personnel in mines. Background Art

[0002] In the related technology, vital signs monitoring equipment is needed to monitor the vital signs of workers in mines in real time. However, some monitoring equipment can only monitor basic vital signs such as heart rate and temperature, which cannot fully reflect the health status of the human body. In addition, most monitoring equipment is often worn only on the wrist in the form of a bracelet, which makes the measurement of data such as blood pressure and cardiac output have large errors and cannot meet the needs of monitoring multiple vital signs and wearables. In addition, current monitoring equipment is generally battery-powered. When the battery is exhausted, the wearer's vital signs cannot be monitored, which cannot meet the needs of real-time monitoring. Moreover, when people in the mine are in danger, it is not easy for other people to notice because the environment in the mine is dim.

[0003] In summary, existing vital signs monitoring equipment is difficult to meet the vital signs monitoring needs of workers in mines. Summary of the invention

[0004] The present application aims to solve one of the technical problems in the related art at least to some extent.

[0005] To this end, the purpose of this application is to solve the technical problem that existing vital signs monitoring equipment is difficult to meet the vital signs monitoring needs of workers in mines, and proposes a self-powered portable multiple vital signs monitoring device for workers in mines.

[0006] Another object of the present application is to provide a portable multi-vital signs monitoring method for personnel in mines that can be powered by itself.

[0007] To achieve the above objectives, the present application proposes a portable multi-vital sign monitoring device for personnel in mines that can be powered by electricity, including:

[0008] Monitoring vest, used to monitor the heart sound data of personnel;

[0009] The monitoring bracelet is used to monitor the blood oxygen data, heart rate data and body temperature data of the person.

[0010] In a possible implementation, the monitoring vest includes:

[0011] A chest monitoring module, used to collect the heart sound data of the human chest;

[0012] A central module, used for processing the heart sound data and generating a first processing result;

[0013] A data transmission module is used to send the first processing result externally.

[0014] In a possible implementation, the chest monitoring module includes:

[0015] The PVDF sensor is used to collect the heart sound signal of the human body and convert it into a first voltage signal;

[0016] A signal filtering and amplifying circuit, used for filtering and amplifying the first voltage signal to obtain a second voltage signal;

[0017] The analog-to-digital signal converter is used to convert the second voltage signal into a digital signal to generate the heart sound data.

[0018] In a possible implementation, the central module includes:

[0019] A first STM32FC8T6 single-chip computer minimum system, used for processing the heart sound data and generating the first processing result;

[0020] A8 processor, used for encoding and packaging the first processing result, and sending the first processing result to the data transmission module;

[0021] A buzzer, used for giving a sound prompt according to the first processing result;

[0022] The LED light strip is used to provide light prompts according to the first processing result.

[0023] In a possible implementation, the monitoring bracelet includes: a wrist monitoring module;

[0024] The wrist monitoring module comprises:

[0025] A PPG module, used to collect the blood oxygen data and the heart rate data of the person;

[0026] A body temperature module, used for collecting the body temperature data of the person;

[0027] The second STM32FC8T6 single-chip computer minimum system is used to send the blood oxygen data, the heart rate data and the body temperature data to the central module.

[0028] In a possible implementation, the central module is further used to process the blood oxygen data, the heart rate data and the body temperature data to generate a second processing result.

[0029] In a possible implementation, the wrist monitoring module further includes:

[0030] The electric energy conversion module is used to generate electric energy by manually pressing the monitoring bracelet.

[0031] To achieve the above-mentioned purpose, the present application proposes a portable multi-vital sign monitoring method for personnel in mines that can be powered by electricity, comprising:

[0032] Initialize the monitoring vest and monitoring bracelet after power-on;

[0033] The heart sound data of the person is monitored by the monitoring vest, and the blood oxygen data, heart rate data and body temperature data of the person are monitored by the monitoring bracelet;

[0034] The heart sound data, the blood oxygen data, the heart rate data and the body temperature data are sent to the host through the monitoring vest.

[0035] In a possible implementation, monitoring the heart sound data of a person through the monitoring vest includes:

[0036] Collecting human heart sound signals through a PVDF sensor and converting them into a first voltage signal;

[0037] Filtering and amplifying the first voltage signal through a signal filtering and amplifying circuit to obtain a second voltage signal;

[0038] The second voltage signal is converted into a digital signal by an analog-to-digital signal converter to generate the heart sound data.

[0039] In a possible implementation, monitoring the blood oxygen data, heart rate data, and body temperature data of the person through the monitoring bracelet includes:

[0040] Collecting the blood oxygen data and the heart rate data of the person through a PPG module;

[0041] Collecting the body temperature data of the person through a body temperature module;

[0042] The blood oxygen data, the heart rate data and the body temperature data are sent to the monitoring vest through the second STM32FC8T6 single-chip microcomputer minimum system.

[0043] Beneficial effects of this application:

[0044] In the embodiment of the present application, the monitoring vest is used to monitor the heart sound data of the personnel; the monitoring bracelet is used to monitor the blood oxygen data, heart rate data and body temperature data of the personnel. The present application can monitor multiple vital signs of the personnel and can effectively ensure the life safety of the personnel.

[0045] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0047] Figure 1 This is a schematic diagram of the structure of a portable multi-vital signs monitoring device for personnel in a mine that can be powered by electricity according to an embodiment of the present application;

[0048] Figure 2 It is a front view of a monitoring vest according to an embodiment of the present application;

[0049] Figure 3 A rear view of a monitoring vest according to an embodiment of the present application;

[0050] Figure 4 is a top view of a monitoring bracelet according to an embodiment of the present application;

[0051] Figure 5 is a side view of a monitoring bracelet according to an embodiment of the present application;

[0052] Figure 6 It is a schematic diagram of the framework of a self-powered portable multiple vital signs monitoring system for underground mine personnel according to an embodiment of the present application;

[0053] Figure 7 The present invention is a flow chart of a self-powered portable multiple vital signs monitoring method for personnel in mines according to an embodiment of the present application. DETAILED DESCRIPTION

[0054] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0055] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0056] The following describes a self-powered portable multiple vital signs monitoring device for underground personnel in mines and a method according to an embodiment of the present application with reference to the accompanying drawings. First, the self-powered portable multiple vital signs monitoring device for underground personnel in mines and a method according to an embodiment of the present application will be described with reference to the accompanying drawings.

[0057] Figure 1It is a schematic diagram of the structure of a self-powered portable multiple vital signs monitoring device for underground mine personnel according to an embodiment of the present application.

[0058] like Figure 1 As shown, the self-powered portable multi-vital signs monitoring device 100 for underground mine personnel includes:

[0059] Monitoring vest 110 is used to monitor the heart sound data of personnel.

[0060] In the embodiments of the present application, Figure 2 FIG. 2 is a front view of a monitoring vest according to an embodiment of the present application, as shown in FIG. Figure 2 As shown, a monitoring module 200 is provided at the chest position of the monitoring vest; Figure 3 FIG. 1 is a rear view of a monitoring vest according to an embodiment of the present application, as shown in FIG. Figure 3 As shown, there are multiple light strips on the back of the monitoring vest.

[0061] The monitoring bracelet 120 is used to monitor the blood oxygen data, heart rate data and body temperature data of a person.

[0062] In the embodiments of the present application, Figure 4 FIG. 1 is a top view of a monitoring wristband according to an embodiment of the present application, as shown in FIG. Figure 4 As shown, the monitoring bracelet 120 includes a dial body 410, a first strap 420 and a short strap body 430, wherein the first strap 420 includes a long strap body 420 and a connecting hole 422, and the short strap body 430 includes a limiting ring 431, a connecting ring 432 and a connecting buckle 433. Figure 5 FIG. 1 is a side view of a monitoring wristband according to an embodiment of the present application, as shown in FIG. Figure 5 As shown, the back side of the dial body 410 is a piezoelectric material surface.

[0063] In the embodiment of the present application, the monitoring vest is used to monitor the heart sound data of the personnel; the monitoring bracelet is used to monitor the blood oxygen data, heart rate data and body temperature data of the personnel. The present application can monitor multiple vital signs of the personnel and can effectively ensure the life safety of the personnel.

[0064] In a possible implementation, the monitoring vest 110 includes:

[0065] Chest monitoring module, used to collect heart sound data from the front chest of the human body;

[0066] A central module, used for processing the heart sound data and generating a first processing result;

[0067] The data transmission module is used to send the first processing result externally.

[0068] In the present application embodiment, Figure 2As shown, the monitoring module 200 may include a chest monitoring module 210, a central module 220 and a data transmission module 230. Among them, the chest monitoring module can collect heart sound data of the human chest, and then can transmit the heart sound data to the central module. After receiving the heart sound data, the central module can process the heart sound data, generate a first processing result, and then transmit the first processing result to the data transmission module. It should be noted that the first processing result can be a processing result for determining whether the heart sound data exceeds a threshold. After receiving the first processing result, the data transmission module can send the first processing result to the outside. It is understandable that the data transmission module can send the first processing result to the host of the upper computer, and the host can save the first processing result. The monitoring personnel can view the physical signs of the personnel in real time through the host, and take timely countermeasures according to the physical signs of the personnel. In this way, real-time monitoring of the heart sound data of the personnel can be achieved, effectively protecting the life safety of the staff.

[0069] In a possible implementation, the chest monitoring module includes:

[0070] The PVDF sensor is used to collect the heart sound signal of the human body and convert it into a first voltage signal;

[0071] A signal filtering and amplifying circuit, used for filtering and amplifying the first voltage signal to obtain a second voltage signal;

[0072] The analog-to-digital signal converter is used to convert the second voltage signal into a digital signal to generate heart sound data.

[0073] In an embodiment of the present application, the chest monitoring module may include a PVDF (piezoelectric film) sensor, a signal filtering and amplifying circuit, and an analog-to-digital signal converter. The PVDF sensor can collect the heart sound signal of the human body, and convert it into a first voltage signal, and send the first voltage signal to the signal filtering and amplifying circuit. The signal filtering and amplifying circuit can filter and amplify the first voltage signal. The amplification interval can be 2.0V to 3.3V, thereby reducing the interference of noise on the heart sound signal, obtaining a second voltage signal, and sending the second voltage signal to the analog-to-digital signal converter. The analog-to-digital signal converter can convert the second voltage signal into a digital signal, generate heart sound data, and send the heart sound data to the central module. In this way, the heart sound data of the personnel can be obtained, and real-time monitoring of the heart sound data of the personnel can be realized.

[0074] In a possible implementation, the central module includes:

[0075] A first STM32FC8T6 single-chip computer minimum system is used to process the heart sound data and generate a first processing result;

[0076] The A8 processor is used to encode and package the first processing result, and send the first processing result to the data transmission module;

[0077] A buzzer, used for giving a sound prompt according to the first processing result;

[0078] The LED light strip is used to provide a light prompt according to the first processing result.

[0079] In the embodiment of the present application, the central module may include a first STM32FC8T6 single-chip minimum system, an A8 processor, a buzzer 221 and an LED light strip 222. The buzzer 221 is as follows: Figure 2 As shown in FIG. , the LED light strip 222 is as follows Figure 3 As shown in . The first STM32FC8T6 single-chip microcomputer minimum system can process the heart sound data, generate a first processing result, and send the first processing result to the A8 processor. The A8 processor can encode and package the first processing result, and send the first processing result to the data transmission module. The buzzer 221 can make a sound prompt according to the first processing result. For example, when the heart sound data exceeds the threshold, an alarm prompt sound can be issued through the buzzer 221. The LED light strip can also make a light prompt according to the first processing result. For example, when the heart sound data exceeds the threshold, a light prompt can be made through the LED light strip 222, and the light can be a flashing light. It can be understood that the sound prompt and the light prompt can prompt the wearer's own physical condition to have problems and need to be handled in time. For example, the work can be stopped in time and transferred to a safe place for further diagnosis. It can also prompt other people around the wearer that the wearer has problems with the physical condition, and they can pay attention to it in time and take corresponding actions. In this way, it can be handled in time according to the physical sign monitoring status, which can effectively protect the life safety of personnel.

[0080] In a possible implementation, the monitoring bracelet 120 includes: a wrist monitoring module;

[0081] Wrist monitoring module, including:

[0082] PPG module, used to collect personnel's blood oxygen data and heart rate data;

[0083] Temperature module, used to collect personnel's temperature data;

[0084] The second STM32FC8T6 microcontroller minimum system is used to send blood oxygen data, heart rate data and body temperature data to the central module.

[0085] In an embodiment of the present application, the monitoring bracelet 120 may include a wrist monitoring module, and the wrist monitoring module may include: a PPG (Photoplethysmography) module, a temperature module, and a second STM32FC8T6 single-chip microcomputer minimum system. The PPG module can collect blood oxygen data and heart rate data of personnel, and send the blood oxygen data and heart rate data to the second STM32FC8T6 single-chip microcomputer minimum system. The temperature module can collect the temperature data of personnel, and send the temperature data to the second STM32FC8T6 single-chip microcomputer minimum system. After receiving the blood oxygen data, heart rate data, and temperature data, the second STM32FC8T6 single-chip microcomputer minimum system can send the blood oxygen data, heart rate data, and temperature data to the central module. In this way, the blood oxygen data, heart rate data, and temperature data of personnel can be obtained, thereby realizing real-time monitoring of the blood oxygen data, heart rate data, and temperature data of personnel.

[0086] It should be noted that the PPG module may include a MAX30102 pulse oximeter and heart rate detection sensor, and the body temperature module may include an LMT70 body temperature sensor.

[0087] It can be understood that the monitoring bracelet can be provided with a display screen. After receiving the blood oxygen data, heart rate data and body temperature data, the second STM32FC8T6 microcontroller minimum system can send the blood oxygen data, heart rate data and body temperature data to the display screen. The display screen can display the blood oxygen data, heart rate data and body temperature data for the wearer to monitor his or her own physical condition.

[0088] In a possible implementation, the central module is also used to process blood oxygen data, heart rate data and body temperature data to generate a second processing result.

[0089] In an embodiment of the present application, after receiving the blood oxygen data, heart rate data and body temperature data, the central module can process the blood oxygen data, heart rate data and body temperature data to generate a second processing result. The second processing result may be a processing result of determining whether the blood oxygen data, heart rate data and body temperature data exceed a threshold value. The next step of the central module's processing of the second processing result is similar to the processing of the first processing result, and will not be repeated here. In this way, real-time monitoring of a person's blood oxygen data, heart rate data and body temperature data can be achieved, thereby effectively protecting the life safety of the person.

[0090] In a possible implementation, the wrist monitoring module further includes:

[0091] The power conversion module is used to generate power by manually pressing the monitoring bracelet.

[0092] In the embodiment of the present application, the power conversion module can generate power by manually pressing the monitoring bracelet. Figure 5 As shown, a piezoelectric film 440 is arranged on the side of the monitoring bracelet close to the skin surface, and an electric energy conversion chip can be arranged on the second STM32FC8T6 single-chip computer. The side of the electric energy conversion chip is provided with an AC input interface, and the front side of the electric energy conversion chip is provided with a DC output positive electrode interface and a DC output negative electrode interface. The monitoring bracelet is provided with a battery, and the DC output positive electrode interface and the DC output negative electrode interface are connected to the battery via a wire. When the bracelet is pressed, pressure is formed on the piezoelectric film, thereby generating a voltage, which is transmitted to the electric energy conversion chip. The electric energy conversion chip converts AC power into DC power, and then supplies energy to the battery in an emergency. In this way, the monitoring of the vital signs data of personnel in an emergency situation can be realized, which can effectively protect the life safety of personnel.

[0093] Based on the above self-powered portable multiple vital signs monitoring device for underground mine personnel, a self-powered portable multiple vital signs monitoring system for underground mine personnel can be constructed. Figure 6 Schematic diagram of the framework of a self-powered portable multi-vital sign monitoring system for underground mine personnel according to an embodiment of the present application. Figure 6 As shown, the chest monitoring module and the central module can send the heart sound data to the data transmission module, and the wrist monitoring module can send the blood oxygen data, heart rate data and body temperature data to the data transmission module. The data transmission module can send the heart sound data, blood oxygen data, heart rate data and body temperature data to the host PC (Personal Computer) for display. The data transmission module can use wireless transmission to transmit data. The wrist monitoring module can also display blood oxygen data, heart rate data and body temperature data through the bracelet OLED (Organic Light-Emitting Diode). The STM32FC8T6 microcontroller can complete the processing and transmission of heart sound data, blood oxygen data, heart rate data and body temperature data. The buzzer and LED light strip can respectively provide sound prompts and light prompts according to the monitoring data. The power supply can power the chest monitoring module, the central module, the wrist monitoring module and the data transmission module.

[0094] In order to implement the above embodiment, Figure 7 As shown, this embodiment also provides a self-powered portable multiple vital signs monitoring method for personnel in a mine, the method comprising:

[0095] Step 710, initializing the monitoring vest and monitoring bracelet after power-on;

[0096] Step 720, monitoring the heart sound data of the person through the monitoring vest, and monitoring the blood oxygen data, heart rate data and body temperature data of the person through the monitoring bracelet;

[0097] Step 730, sending the heart sound data, blood oxygen data, heart rate data and body temperature data to the host through the monitoring vest.

[0098] In an embodiment of the present application, the monitoring vest and the monitoring bracelet can be powered on, and then the monitoring vest and the monitoring bracelet after power-on can be initialized. For example, the first STM32FC8T6 single-chip minimum system board can initialize the setting of the vital sign parameters, the central module can be configured as a node in the grid network, and the service is initialized. The heart sound data of the personnel can be monitored by the monitoring vest, and the blood oxygen data, heart rate data and body temperature data of the personnel can be monitored by the monitoring bracelet. Exemplarily, the heart sound data of the personnel can be monitored by the monitoring vest and the blood oxygen data, heart rate data and body temperature data of the personnel can be monitored by the monitoring bracelet by creating a timer task. Finally, after receiving the blood oxygen data, heart rate data and body temperature data, the monitoring vest can send the heart sound data, blood oxygen data, heart rate data and body temperature data to the host through the monitoring vest.

[0099] It should be noted that verification data returned by the host can also be received to verify whether the above data is transmitted normally. In the event of packet loss and data error, the above data can be resent.

[0100] In a possible implementation, the heart sound data of a person monitored by monitoring the vest includes:

[0101] Collecting human heart sound signals through a PVDF sensor and converting them into a first voltage signal;

[0102] The first voltage signal is filtered and amplified by a signal filtering and amplifying circuit to obtain a second voltage signal;

[0103] The second voltage signal is converted into a digital signal by an analog-to-digital signal converter to generate heart sound data.

[0104] In a possible implementation, the blood oxygen data, heart rate data and body temperature data of a person are monitored by a monitoring bracelet, including:

[0105] Collect personnel's blood oxygen data and heart rate data through the PPG module;

[0106] Collect the body temperature data of personnel through the body temperature module;

[0107] Through the second STM32FC8T6 microcontroller minimum system, the blood oxygen data, heart rate data and body temperature data are sent to the monitoring vest.

[0108] According to the self-powered portable multiple vital signs monitoring method for personnel in mines according to the embodiment of the present application, the monitoring vest and the monitoring bracelet are initialized after power-on, and then the heart sound data of the personnel are monitored by the monitoring vest, and the blood oxygen data, heart rate data and body temperature data of the personnel are monitored by the monitoring bracelet, and finally the heart sound data, blood oxygen data, heart rate data and body temperature data are sent to the host through the monitoring vest. The present application can monitor multiple vital signs of personnel and can effectively protect the life safety of personnel.

[0109] It should be noted that the above explanation of the embodiment of the self-powered portable multiple vital signs monitoring device for underground mine personnel is also applicable to the self-powered portable multiple vital signs monitoring method for underground mine personnel of this embodiment, and will not be repeated here.

[0110] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0111] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0112] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A self-powered portable multi-vital sign monitoring device for personnel in mines, characterized in that: include: Monitoring vest, used to monitor the heart sound data of personnel; A monitoring bracelet for monitoring the blood oxygen data, heart rate data and body temperature data of the person; The monitoring vest includes: A chest monitoring module, used to collect the heart sound data of the human chest; A central module, used for processing the heart sound data and generating a first processing result; A data transmission module for sending the first processing result to the outside; The chest monitoring module comprises: The PVDF sensor is used to collect the heart sound signal of the human body and convert it into a first voltage signal; A signal filtering and amplifying circuit, used for filtering and amplifying the first voltage signal to obtain a second voltage signal; an analog-to-digital signal converter, used for converting the second voltage signal into a digital signal to generate the heart sound data; The central module includes: A first STM32FC8T6 single-chip computer minimum system, used for processing the heart sound data and generating the first processing result; A8 processor, used for encoding and packaging the first processing result, and sending the first processing result to the data transmission module; A buzzer, used for giving a sound prompt according to the first processing result; An LED light strip, used for providing a light prompt according to the first processing result; The monitoring bracelet comprises: a wrist monitoring module; The wrist monitoring module comprises: A PPG module, used to collect the blood oxygen data and the heart rate data of the person; A body temperature module, used for collecting the body temperature data of the person; A second STM32FC8T6 single-chip computer minimum system is used to send the blood oxygen data, the heart rate data and the body temperature data to the central module; The central module is also used to process the blood oxygen data, the heart rate data and the body temperature data to generate a second processing result.

2. The self-powered portable multi-vital signs monitoring device for underground mine personnel according to claim 1 is characterized in that: The wrist monitoring module further includes: The electric energy conversion module is used to generate electric energy by manually pressing the monitoring bracelet.

3. A self-powered portable multi-vital sign monitoring method for personnel in mines, characterized in that: The monitoring method is implemented based on the monitoring device described in any one of claims 1-2, including: Initialize the monitoring vest and monitoring bracelet after power-on; The heart sound data of the person is monitored by the monitoring vest, and the blood oxygen data, heart rate data and body temperature data of the person are monitored by the monitoring bracelet; The heart sound data, the blood oxygen data, the heart rate data and the body temperature data are sent to the host through the monitoring vest.

4. The self-powered portable multi-vital signs monitoring method for underground mine personnel according to claim 3 is characterized in that: The heart sound data of the person monitored by the monitoring vest includes: Collecting human heart sound signals through a PVDF sensor and converting them into a first voltage signal; Filtering and amplifying the first voltage signal through a signal filtering and amplifying circuit to obtain a second voltage signal; The second voltage signal is converted into a digital signal by an analog-to-digital signal converter to generate the heart sound data.

5. The self-powered portable multi-vital signs monitoring method for underground mine personnel according to claim 4 is characterized in that: The monitoring of the blood oxygen data, heart rate data and body temperature data of the person by the monitoring bracelet includes: Collecting the blood oxygen data and the heart rate data of the person through a PPG module; Collecting the body temperature data of the person through a body temperature module; The blood oxygen data, the heart rate data and the body temperature data are sent to the monitoring vest through the second STM32FC8T6 single-chip microcomputer minimum system.

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