CN109846498B - Wearable device for mental state monitoring and method for acquiring monitoring data - Google Patents

Abstract

The invention discloses a wearable device for mental state monitoring and a method for acquiring monitoring data. The main machine part is connected with the electrode part, a plurality of electrodes of the electrode part are respectively connected with one acupuncture point of the heart meridian of the hand lesser yin, the main machine is fixed on the arm of the human body, and the main machine part is formed by sequentially connecting a differential amplification module, an active low-pass filtering module, a boosting module and an AD conversion module. The wearable device is fixed on an arm through a binding band to measure acupuncture points of the heart meridian of hand shaoyin, the high potential electrode is connected with shaoyi acupuncture points, the low potential electrode is connected with Shenmen acupuncture points, the electrode part is connected with the wearable device through a lead wire, real-time monitoring can be carried out, the host machine collects potential differences between the two acupuncture points at equal interval time periods, a data chart is formed according to the potential differences collected for multiple times, and the potential differences are sent to the mobile phone terminal device through the Bluetooth module to be displayed. The invention has compact structure, small system and convenient wearing.

Description

Wearable device for mental state monitoring and method for collecting monitoring data

technical field

The invention belongs to the field of mental state monitoring, and in particular relates to a wearable device for mental state monitoring and a method for collecting monitoring data.

Background technique

The results of a large number of modern scientific experiments show that there are two types of signal transmission in organisms. One is a series of reaction processes that depend on the binding of signal molecules to target cell membrane proteins, but they are often not fast enough and have poor specificity; the other is dependent on biological Electric network system to realize signal transmission. The meridians are the network systems that connect the viscera and limbs of living organisms.

Bioelectrical signals are of great significance to living organisms, such as the respiratory electron transport chain that living organisms depend on, and its essence is the release and storage of a large number of electrons. It is through this reaction that cells store electrical energy and conduct energy exchange and information transduction with the environment. Changes in cell potential are also associated with other parts of the human body through meridians.

Studies have shown that there are many low-impedance points on human skin that are consistent with acupuncture points in traditional meridians, and the electrical properties of acupoints can transmit and feedback information about body organs and tissues. In TCM theory, acupuncture points in the direction of the Heart Meridian of Hand Shaoyin are related to the mind. The mind is now called the mental state, so by detecting the potential difference between the specific acupoints in the direction of the hand Shaoyin meridian, the mental state of the person can be reflected. The traditional mental state detection method has complicated steps and huge instruments, cannot provide real-time monitoring, and cannot well match the needs of contemporary people for mental state monitoring.

SUMMARY OF THE INVENTION

In order to monitor the mental state of the human body in real time and collect the monitoring data of the mental state in real time, the present invention is worn on a suitable part of the human arm, and the human mental state is monitored by acquiring the potential difference of the acupoints on the heart meridian of Hand Shaoyin, and the real-time collection of the mental state of the human body can be realized. Potential difference data between acupoints on the heart meridian of Shaoyin.

In order to achieve the above object, the technical scheme adopted in the present invention is:

1. A wearable device for mental state monitoring

The device includes a host part and an electrode part connected with the host, the electrode part includes two or more electrodes, the multiple electrodes are respectively connected with one of the acupoints of the hand-shaoyin heart meridian, and the multiple electrodes are connected with the acupoint closest to the heart The electrode connected to the acupuncture point farthest from the heart is used as the high-potential electrode, and the electrode connected to the acupoint farthest from the heart is used as the low-potential electrode.

The host is fixed on the human arm, and the host part includes a differential amplifier module, an active low-pass filter module, a boost module, an AD conversion module and a Bluetooth module; the differential amplifier module includes an operational amplifier U3, the model of the operational amplifier U3 is AD620, and the operational amplifier U3 The non-inverting input terminal and the reverse input terminal of U3 are connected to the high-potential electrode and the low-potential electrode respectively; the pin 1 and pin 8 of the operational amplifier U3 are connected through the resistor R1, the pin 5 of the operational amplifier U3 is grounded, and the operational amplifier U3 The output end is connected to the differential amplifier module.

The active low-pass filter module includes an operational amplifier U4, and the model of the operational amplifier U4 is OP07; the output terminal of the operational amplifier U3 is connected to the same-direction input terminal of the operational amplifier U4 through the resistor R2 and the resistor R3 in turn, and the resistor R3 and the operational amplifier U4 are connected. The non-inverting input terminals are grounded through capacitor C4, and the resistor R2 and resistor R3 are connected to the reverse input terminal of the operational amplifier U4 through the capacitor C5. The reverse input terminal of the operational amplifier U4 is connected to the output terminal of the operational amplifier U4. The output end of the amplifier U4 is connected with the boosting module.

The boost module includes an operational amplifier U17, and the model of the operational amplifier U17 is OP07; the output end of the operational amplifier U4 is connected to the same-direction input end of the operational amplifier U17 through the resistor R31, and the resistance R31 and the same-direction input end of the operational amplifier U17 pass through The resistor R30 is grounded, the reverse input end of the operational amplifier U17 is connected to the output end of the operational amplifier U17, and the output end of the operational amplifier U17 is connected to the AD conversion module.

The AD conversion module includes the single-chip microcomputer U6, the model of the single-chip microcomputer U6 is STM32F103RET6, the PA0/ADC0 pin of the single-chip microcomputer U6 is connected to the output end of the operational amplifier U17, the PA0/ADC0 pin OOT0 pin of the single-chip microcomputer U6 is grounded through the resistor R14, and the PA10/U1_RX of the single-chip microcomputer U6 is grounded. The pin and the PA9/U1_TX pin are connected to the Bluetooth module.

The multiple electrodes of the electrode part are used as input signals to be differentially amplified by the differential amplifier module and then input to the active low-pass filter module for low-pass filtering to obtain the analog potential difference signal, and the boost module raises the potential of the analog potential difference signal to obtain a positive analog potential. The difference signal, the AD conversion module converts the analog potential difference signal into a digital potential difference signal, and subtracts the obtained digital potential difference signal from the potential raised by the boost module, and then divides it by the differential amplification factor to obtain the output potential difference signal, and then Output the output potential difference signal to the Bluetooth module.

Preferably, the host part further includes a battery power supply module, the battery power supply module includes a chip U2 and a chip U10, the model of the chip U2 is ICL7660, the model of the chip U10 is ADP7118, and the CAP+ pin and the CAP- pin of the chip U2 are connected through a capacitor C3. , the LV pin of the chip U2 is grounded, the VOUT pin of the chip U2 is grounded through the capacitor C8, the V+ pin of the chip U2 is connected to the VOUT pin of the chip U10; the VIN pin of the chip U10 and the GND pin are connected through the capacitor C23, and the VIN pin of the chip U10 is connected to the ground. The pin and EN pin are connected to the external power supply together, the GND pin of the chip U10 is grounded, the VOUT pin of the chip U10 and the SENSE pin are connected and grounded through the capacitor C25.

The VOUT pin of the chip U10 is respectively connected to the pin 7 (positive power supply terminal) of the operational amplifier U3 and the pin 7 (positive power supply terminal) of the operational amplifier U4. The pin 7 of the operational amplifier U4 is connected to the pin 7 of the operational amplifier U17 ( The positive power supply terminal) is connected; the resistor R31 and the non-inverting input terminal of the operational amplifier U17 are connected to the VOUT pin of the chip U10 through the resistor R32; the VOUT pin of the chip U2 is respectively connected with the operational amplifier U3 pin 4 (negative power supply terminal), The pin 4 (negative power terminal) of the operational amplifier U4 is connected, and the pin 4 (negative power terminal) of the operational amplifier U4 is connected to the via pin 4 (negative power terminal) of the operational amplifier U17.

The battery power supply module converts the external power supply into ±3.3V voltage. The battery power supply module provides ±3.3V voltage for the differential amplifier module, active low-pass filter module and boost module, and provides +3.3V voltage for AD conversion module and Bluetooth module. Voltage.

Preferably, the electrode part adopts two electrodes, the host is connected to the two electrodes through the interface J6, the non-inverting input terminal and the reverse input terminal of the operational amplifier U3 are respectively connected to the pins 1 and 3 of the interface J6, and the pin 1 of the interface J6 And pin 3 is used as the port of the input signal, and the ports of the two input signals are respectively connected with the two electrodes.

Preferably, the electrode part adopts two electrodes, and the two electrodes are respectively connected to Shaohai point and Shenmen point. Since Shaohai point is closer to the heart than Shenmen point, the electrode connected to Shaohai point is a high-potential electrode , and the electrode connected to Shenmen point is a low-potential electrode.

2. A method for collecting monitoring data, comprising the following steps:

Step 1) The host part of the wearable device is fixed on the arm with a strap to measure the acupoints of the Shaoyin heart meridian of the hand, and the two electrodes of the electrode part are connected to Shaohai and Shenmen points respectively, and the electrode part is It is connected to the host part through the interface J6, so as to measure the potential difference between the two acupoints in real time;

Step 2) The host collects the potential difference between the two acupoints at equal intervals, forms a data chart according to the potential difference collected multiple times, and sends it to the mobile phone terminal device for display through the Bluetooth module.

Preferably, the electrode part adopts stick-type electrodes or needle-type electrodes; if stick-type electrodes are used, each electrode of the stick-type electrodes is respectively pasted at the corresponding acupoint; if needle-type electrodes are used, the needle-type electrodes are Each of the electrodes pierced into the corresponding acupuncture points.

The beneficial effects of the present invention are as follows:

Based on the electrical characteristics of meridian points, the invention invents a wearable mental monitoring device, which is simple and compact in structure, easy to carry, convenient for monitoring, and can realize real-time monitoring, thereby meeting people's needs for mental state monitoring.

Through the real-time collection of monitoring data, the present invention can obtain a large amount of data reflecting the mental state, and the collected monitoring data can be used to judge the mental state and adjust it according to the measures taken.

Description of drawings

Figure 1 is a diagram of the forearm meridian of the Heart Meridian of Hand Shaoyin.

FIG. 2 is a block diagram of the overall structure of the system of the present invention.

FIG. 3 is a circuit diagram of a battery-powered module, a differential amplifier module, an active low-pass filter module, and a booster module.

FIG. 4 is a circuit diagram of an AD conversion module.

FIG. 5 is a schematic diagram of an embodiment.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

As shown in FIG. 2, the present invention includes a battery power supply module, a differential amplifier module, an active low-pass filter module, a booster module, an AD conversion module and a Bluetooth module, and the battery power supply module is a differential amplifier module, an active low-pass filter module, The boost module provides a voltage of ±3.3V, and provides a voltage of +3.3V for the AD conversion module and the Bluetooth module; the acupoint potential signal read by the electrode enters the differential amplifier module to amplify 5-100 times; the amplified signal output by the differential amplifier module Enter the active low-pass filter module to filter out the noise greater than 20Hz in the signal, and obtain the potential difference signal between acupoints close to DC; the near DC signal after filtering the noise will raise the signal potential through the boost module to ensure the potential of the input AD conversion module The difference signal is positive; the signal output by the boost module enters the AD conversion module to convert the original analog potential difference signal into a digital potential difference signal, and then subtract the potential raised by the boost module and divide it by the differential amplification factor to obtain the actual The DC potential difference between the acupoints is determined, and the result is output; finally, the result output by the AD conversion module is displayed on the mobile phone through the Bluetooth module.

As shown in Figure 3, the differential amplifier module, active low-pass filter module and boost module are all composed of operational amplifiers and their peripheral resistors and capacitors; the battery power supply module is composed of ICL7660 chip and ADP7118 chip and their peripheral capacitors.

As shown in Figure 4, a control program is programmed in the AD conversion module, which can ensure that the potential difference data is read at a set time interval, and the device is in a dormant state during the rest of the time, ensuring low power consumption. The AD conversion module provides AD conversion function and signal operation and control functions by STM32 single-chip microcomputer. The signal is input from any ADC serial port, and the ADC in the STM32 single-chip microcomputer is used to convert the analog signal into a digital signal, and then obtain the actual DC potential between acupoints through operation processing. difference, and the time interval setting for reading the signal.

The embodiment of the mental state monitoring method and its implementation process are as follows:

Example 1

Figure 1 shows all the points on the forearm of the Heart Meridian of Hand Shaoyin. The electrical properties of these points are related to the mental state of the human body. Fix the wearable device on the top of the wearer's wrist, as shown in Figure 5, and stick the two protruding electrodes on the two acupoints in the heart meridian of Shaoyin of the hand. Here we select Shaohai and Shenmen points for description .

Taking the use of stick-type electrodes as an example, first trim the hair near the Shaohai and Shenmen points, then wipe with medical alcohol, and after it evaporates, find the exact position of the point to be tested in the heart meridian of Hand Shaoyin according to Figure 1, The high-potential electrode of the stick-type electrode is accurately pasted on the Shaohai point, and the low-potential electrode is accurately pasted on the Shenmen point. At this time, the human body is connected to the wearable device, and the mental state can be officially monitored. The interval can be set to 15 minutes. Collect potential difference data once.

The host uploads the collected potential difference data to the mobile phone or the cloud through the Bluetooth module in the form of a dynamic chart. The wearer can monitor the mental state by analyzing the dynamic chart on the mobile phone. This patent includes, but is not limited to, monitoring the mental state of the human body by obtaining the potential difference between the above two acupoints, and can also monitor other acupoints on the heart meridian of Hand Shaoyin, and can use the potential difference data between multiple pairs of acupoints to eliminate abnormal situations and improve monitoring. Accuracy.

Embodiment 2

Example 2 Three electrodes were selected for measurement. According to Figure 1, Shaohai Point, Shenmen Point and Lingdao Point are selected for description. The three pins of the interface J6 are connected to the three electrodes respectively, and the host is connected to the three electrodes respectively through the interface J6. The Shenmen point farthest from the heart is the low-potential electrode, and the Shaohai point and the Lingdao point are the high-potential electrodes. , the potentials of Shaohai and Shenmen acupoints are input to the host as a pair of signals, and the potentials of Lingdao and Shenmen are input to the host as another pair of signals, and the host will monitor the results (the two pairs of acupoints) through the Bluetooth module. The potential difference between acupoints) forms a dynamic chart and sends it to the mobile phone, so that the wearer can view the dynamic chart on the mobile phone to realize real-time monitoring of the mental state.

The connection of other electrodes larger than three electrodes and the monitoring data acquisition method are the same as above.

Using the monitoring device and method of the present invention to monitor the mental state of the human body is very fast and convenient, and can realize the real-time monitoring of the wearer's mental state throughout the day, which cannot be done by the traditional mental state detection method, and the device does not cause any harm to the human body. , without side effects. The present invention can be used to judge the mental state of a person by monitoring the potential difference between a plurality of acupoints in the direction of the heart meridian of Hand Shaoyin. The measurement results of the potential difference between acupoints can also be used as the basis for the initial screening of mental state or mental illness.

Judging a person's mental state by the potential difference is as follows: the potential difference between Shaohai and Shenmen points can be divided into several different degrees from low to high: 30mV can be judged as normal and good; 30mV-50mV can be judged as Slightly high, the manifestation is mental tension; 50mV-70mV can be judged as slightly high, the manifestation is mental anxiety; more than 70mV is judged as high.

Normal people can reach 30-50mV under serious and intense work and careful thinking or calculation. The wearer judges his own mental state based on the dynamic chart results displayed by the mobile phone and according to the above classification. If the potential difference is at a high level, measures such as interventional intervention can be taken to adjust the mental state.

Claims (6)

1. a wearable device for mental state monitoring, is characterized in that: comprise host part and the electrode part that is connected with host part, electrode part comprises two or more multiple electrodes, and multiple electrodes are respectively connected with hand Shaoyin. One of the acupoints of the heart meridian is connected, and the electrode connected to the acupoint closest to the heart among the multiple electrodes is used as a high-potential electrode, and the electrode connected to the acupoint farthest from the heart is used as a low-potential electrode; The host is fixed on the human arm, and the host part includes a differential amplifier module, an active low-pass filter module, a boost module, an AD conversion module and a Bluetooth module; the differential amplifier module includes an operational amplifier U3, the model of the operational amplifier U3 is AD620, and the operational amplifier U3 The non-inverting input terminal and the reverse input terminal of U3 are connected to the high-potential electrode and the low-potential electrode respectively; the pin 1 and pin 8 of the operational amplifier U3 are connected through the resistor R1, the pin 5 of the operational amplifier U3 is grounded, and the operational amplifier U3 The output end is connected with the active low-pass filter module; The active low-pass filter module includes an operational amplifier U4, and the model of the operational amplifier U4 is OP07; the output end of the operational amplifier U3 is connected to the same-direction input end of the operational amplifier U4 through the resistor R2 and the resistor R3 in turn, and the resistor R3 and the operational amplifier U4 The non-inverting input terminals are grounded through capacitor C4, the resistor R2 and resistor R3 are connected to the reverse input terminal of the operational amplifier U4 through the capacitor C5, and the reverse input terminal of the operational amplifier U4 is connected to the output terminal of the operational amplifier U4. The output end of the amplifier U4 is connected with the boosting module; The boost module includes an operational amplifier U17, and the model of the operational amplifier U17 is OP07; the output end of the operational amplifier U4 is connected to the same-direction input end of the operational amplifier U17 through the resistor R31, and the resistance R31 and the same-direction input end of the operational amplifier U17 pass through The resistor R30 is grounded, the reverse input end of the operational amplifier U17 is connected to the output end of the operational amplifier U17, and the output end of the operational amplifier U17 is connected to the AD conversion module; The AD conversion module includes the single-chip microcomputer U6, the model of the single-chip microcomputer U6 is STM32F103RET6, the PA0/ADC0 pin of the single-chip microcomputer U6 is connected to the output end of the operational amplifier U17, the PA0/ADC0 pin OOT0 pin of the single-chip microcomputer U6 is grounded through the resistor R14, and the PA10/U1_RX of the single-chip microcomputer U6 is grounded. The pin and the PA9/U1_TX pin are connected to the Bluetooth module; The multiple electrodes of the electrode part are used as input signals to be differentially amplified by the differential amplifier module and then input to the active low-pass filter module for low-pass filtering to obtain the analog potential difference signal, and the boost module raises the potential of the analog potential difference signal to obtain a positive analog potential. The difference signal, the AD conversion module converts the analog potential difference signal into a digital potential difference signal, and subtracts the obtained digital potential difference signal from the potential raised by the boost module, and then divides it by the differential amplification factor to obtain the output potential difference signal, and then Output the output potential difference signal to the Bluetooth module. 2. A wearable device for mental state monitoring according to claim 1, characterized in that: the host part further comprises a battery power supply module, the battery power supply module comprises a chip U2 and a chip U10, the model of the chip U2 It is ICL7660, the model of chip U10 is ADP7118, the CAP+ pin and CAP- pin of chip U2 are connected through capacitor C3, the LV pin of chip U2 is grounded, the VOUT pin of chip U2 is grounded through capacitor C8, and the V+ pin of chip U2 is connected to the chip. The VOUT pin of U10 is connected; the VIN pin of the chip U10 and the GND pin are connected through the capacitor C23, the VIN pin and the EN pin of the chip U10 are connected to the external power supply, the GND pin of the chip U10 is grounded, and the VOUT pin and the SENSE pin of the chip U10 are connected to each other. It is connected to the ground through the capacitor C25; The VOUT pin of the chip U10 is connected to the pin 7 of the operational amplifier U3 and the pin 7 of the operational amplifier U4 respectively. The pin 7 of the operational amplifier U4 is connected to the pin 7 of the operational amplifier U17; the resistor R31 is in the same direction as the operational amplifier U17. The input terminals are connected to the VOUT pin of the chip U10 through the resistor R32; the VOUT pin of the chip U2 is connected to the pin 4 of the operational amplifier U3 and the pin 4 of the operational amplifier U4 respectively, and the pin 4 of the operational amplifier U4 is connected with the operational amplifier U17. connected by pin 4; The battery power supply module converts the external power supply into ±3.3V voltage. The battery power supply module provides ±3.3V voltage for the differential amplifier module, active low-pass filter module and boost module, and provides +3.3V voltage for AD conversion module and Bluetooth module. Voltage. 3. A wearable device for mental state monitoring according to claim 1, characterized in that: the electrode part adopts two electrodes, the host is connected to the electrodes through the interface J6, and the same-direction input end of the operational amplifier U3 and the reverse input terminal are respectively connected with the pins 1 and 3 of the interface J6, the pins 1 and 3 of the interface J6 are used as the input signal ports, and the two input signal ports are respectively connected with the two electrodes. 4. A wearable device for mental state monitoring according to claim 1, characterized in that: the electrode part adopts two electrodes, and the two electrodes are respectively connected to Shaohai acupoint and Shenmen acupoint, and are connected to Shaohai acupoint and Shenmen acupoint respectively. The electrode connected to the sea point is a high-potential electrode, and the electrode connected to the Shenmen point is a low-potential electrode. 5. adopt the collection method of the monitoring data of the wearable device described in any one of claim 1-4, it is characterized in that comprising the following steps: Step 1) The host part of the wearable device is fixed on the arm with a strap to measure the acupoints of the Shaoyin heart meridian of the hand, and the two electrodes of the electrode part are connected to Shaohai and Shenmen points respectively, and the electrode part is Connect with the host part through interface J6; Step 2) The host collects the potential difference between the two acupoints at equal intervals, forms a data chart according to the potential difference collected multiple times, and sends it to the mobile phone terminal device for display through the Bluetooth module. 6 . The method for collecting monitoring data according to claim 5 , wherein the electrode part adopts a stick-type electrode or a needle-type electrode; if the stick-type electrode is used, each electrode of the stick-type electrode is Paste them on the corresponding acupoints respectively. If needle electrodes are used, pierce each electrode of the needle electrodes into the corresponding acupoints respectively.

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