Wearable physiological monitoring smart vest

Abstract

The utility model discloses a wearable physiological monitoring intelligent vest, the front fixed installation base of vest body, install host computer casing on the installation base, install switch on the host computer casing, be equipped with ECG respiration collection front end, ECG respiration simulation front end, temperature acquisition circuit, MCU main control circuit, power supply circuit and WIFI module in the host computer casing, the front fixed battery box of vest body, install the battery in the battery box, install the battery in the battery box, install ECG electrode piece RA, ECG electrode piece LA, ECG electrode piece V1, ECG electrode piece V2, ECG electrode piece RL, ECG electrode piece LL, respiration electrode piece V3, V4, V5 and V6 in the inner layer of vest body, ECG electrode piece RL ground connection, install temperature sensor in the inner layer of vest body.

Description

Technical Field

[0001] This utility model relates to the field of physiological signal detection technology, and in particular to a wearable smart vest for physiological monitoring. Background Technology

[0002] Most existing devices for detecting human physiological signals are separate components, lacking an integrated structure that combines all components on a vest. Therefore, this invention designs a wearable smart vest for physiological monitoring that integrates all components for detecting human physiological signals onto the vest. Utility Model Content

[0003] This invention addresses the problems and shortcomings of existing technologies by providing a wearable smart vest for physiological monitoring.

[0004] The present invention solves the above-mentioned technical problems through the following technical solution:

[0005] This utility model provides a wearable physiological monitoring smart vest, characterized in that it is used in high-pressure environments. It includes a vest body, a mounting base fixed to the front of the vest body, a main unit housing mounted on the mounting base, a switch mounted on the main unit housing, and an ECG and respiration acquisition front end, an ECG and respiration simulation front end, a temperature acquisition circuit, an MCU main control circuit, a power supply circuit, and a WIFI module disposed inside the main unit housing. A battery box is also fixed to the front of the vest body, and a battery is installed inside the battery box.

[0006] The inner layer of the vest body is equipped with a first ECG electrode (RA) corresponding to the first intercostal space of the right clavicle midline, a second ECG electrode (LA) corresponding to the first intercostal space of the left clavicle midline, a third ECG electrode (V1) corresponding to the fourth intercostal space of the right sternal border, a fourth ECG electrode (V2) corresponding to the fourth intercostal space of the left sternal border, a fifth ECG electrode (RL) corresponding to the xiphoid process level of the right clavicle midline, a sixth ECG electrode (LL) corresponding to the xiphoid process level of the left clavicle midline, a first respiratory electrode (V3) corresponding to the area near the fifth rib on the left side, a second respiratory electrode (V4) corresponding to the area near the fifth rib on the right side, a third respiratory electrode (V5) corresponding to the area near the fourth rib on the left side, and a fourth respiratory electrode (V6) corresponding to the area near the fourth rib on the right side. The fifth ECG electrode (RL) is grounded. The inner layer of the vest body is also equipped with a temperature sensor.

[0007] The first ECG electrode (RA), the second ECG electrode (LA), the third ECG electrode (V1), the fourth ECG electrode (V2), the fifth ECG electrode (RL), the sixth ECG electrode (LL), the first respiratory electrode (V3), the second respiratory electrode (V4), the third respiratory electrode (V5), and the fourth respiratory electrode (V6) are all electrically connected to the input terminal of the ECG and respiratory acquisition front end. The output terminal of the ECG and respiratory acquisition front end is electrically connected to the MCU main control circuit through the ECG and respiratory simulation front end. The temperature sensor is electrically connected to the MCU main control circuit through the temperature acquisition circuit. The battery, switch, power supply circuit, and MCU main control circuit are electrically connected in sequence. The WIFI module is electrically connected to the MCU main control circuit.

[0008] The main fabric of the vest is made of elastic knitted fabric. Based on the requirement of elastic adaptation between the wire and the fabric, an S-shaped wiring method is designed to weave the ultra-fine wire into the preset position of the underwear according to the design pattern. The lamination technology and hot-pressed cloth base adhesive strip are used to bond the wire to the fabric.

[0009] The MCU main control circuit includes a main control chip, which uses a Cortex-M4 core microcontroller and its model is STM32F413VGT6.

[0010] The ECG-respiratory acquisition front end includes: one end of resistor R16 connected to the third ECG electrode (V1) and grounded through electrostatic diode D1; the other end of resistor R16 connected to the ECG-respiratory simulation front end and grounded through capacitor C27; one end of resistor R17 connected to the third respiratory electrode (V5) and grounded through electrostatic diode D2; the other end of resistor R17 connected to the ECG-respiratory simulation front end and grounded through capacitor C28; one end of resistor R18 connected to the second respiratory electrode (V4) and grounded through electrostatic diode D3; the other end of resistor R18 connected to the ECG-respiratory simulation front end and grounded through capacitor C29; one end of resistor R23 connected to the first respiratory electrode (V3) and grounded through electrostatic diode D4; the other end of resistor R23 connected to the ECG-respiratory simulation front end and grounded through capacitor C30; one end of resistor R24 ​​connected to the fourth ECG electrode (V2) and grounded through electrostatic diode D5; the other end of resistor R24 ​​connected to the ECG-respiratory simulation front end. It is also grounded through capacitor C31. One end of resistor R25 is connected to the first ECG electrode (RA) and grounded through electrostatic diode D6. The other end of resistor R25 is connected to the ECG breathing simulation front end. It is also grounded through capacitor C32. One end of resistor R26 is connected to the sixth ECG electrode (LL) and grounded through electrostatic diode D7. The other end of resistor R26 is connected to the ECG breathing simulation front end. It is also grounded through capacitor C33. One end of resistor R29 is connected to the second ECG electrode (LA) and grounded through electrostatic diode D8. The other end of resistor R29 is connected to the ECG breathing simulation front end. It is also grounded through capacitor C34. One end of resistor R30 is connected to the fourth breathing electrode (V6) and grounded through electrostatic diode D9. The other end of resistor R30 is connected to the ECG breathing simulation front end. It is also grounded through capacitor C35. One end of resistor R31 is connected to the fifth breathing electrode (RL) and grounded through electrostatic diode D10. The other end of resistor R31 is connected to the ECG breathing simulation front end.

[0011] The ECG-respiratory simulation front end uses an ECG-respiratory chip U2, model WL1298. Pin IN8N of the ECG-respiratory chip U2 is electrically connected to the WCT pin, and pin IN8P is electrically connected to the other end of resistor R16. Pin IN7N of the ECG-respiratory chip U2 is electrically connected to the WCT pin, and pin IN7P is reserved. Pin IN6N of the ECG-respiratory chip U2 is electrically connected to the WCT pin, and pin IN6P is reserved. Pin IN5N of the ECG-respiratory chip U2 is electrically connected to the WCT pin, and pin IN5P is reserved. Pin IN4N of the ECG-respiratory chip U2 is electrically connected to the WCT pin, and pin IN4P is electrically connected to the other end of resistor R24. Pin IN3N of the ECG-respiratory chip U2 is connected to resistor R25. The other end is electrically connected. The IN3P pin of the ECG / respiratory chip U2 is electrically connected to the other end of resistor R26. The IN2N pin of the ECG / respiratory chip U2 is electrically connected to the other end of resistor R25. The IN2P pin of the ECG / respiratory chip U2 is electrically connected to the other end of resistor R29. The IN1N pin of the ECG / respiratory chip U2 is electrically connected to the other ends of resistors R23 and R17 respectively. The IN1P pin of the ECG / respiratory chip U2 is electrically connected to the other ends of resistors R18 and R30 respectively. The five AVDD pins of the ECG / respiratory chip U2 are connected to analog ground through capacitors C54, C55, C56, C57, and C58 respectively. The five AVDD pins of the ECG / respiratory chip U2 are connected to analog ground. The SS pin is connected to analog ground. The VREFP pin of the ECG / respiratory chip U2 is electrically connected to the VREF+ pin of the main control chip U1 for inputting the VREFP reference voltage. The VREFN pin of the ECG / respiratory chip U2 is connected to analog ground. A parallel capacitor C60 and a capacitor C61 are connected between the VREFP and VREFN pins of the ECG / respiratory chip U2. The VCAP4 pin of the ECG / respiratory chip U2 is connected to analog ground through capacitor C62, the VCAP1 pin through capacitor C63, and the VCAP2 pin through capacitor C64. The RESV1 pin of the ECG / respiratory chip U2 is grounded through resistor R59. The WCT pin of the ECG / respiratory chip U2 is connected to analog ground through capacitor C44. The RLDOUT pin of chip U2 is electrically connected to the other end of resistor R31. A capacitor C47 and a resistor R42 are connected in parallel between the RLDOUT pin and the RLDINV pin of the ECG / respiratory chip U2. The VCAP3 pin of the ECG / respiratory chip U2 is connected to analog ground through capacitor C53. The AVDD1 pin of the ECG / respiratory chip U2 is connected to analog ground through resistor R45 and capacitor C59. The AVSS1 pin of the ECG / respiratory chip U2 is connected to analog ground through resistor R46. The CLKSEL pin of the ECG / respiratory chip U2 is grounded through resistor R47. The three DGND pins of the ECG / respiratory chip U2 are grounded, and the two DVDD pins are grounded through capacitors C50 and C51 respectively. The DOUT pin of the ECG / respiratory chip U2 is electrically connected to the PB1 pin of the main control chip U1 via resistor R48. The SCLK pin of the ECG / respiratory chip U2 is electrically connected to the PD14 pin of the main control chip U1 via resistor R52. The SCLK pin of the ECG / respiratory chip U2 is electrically connected to the PD13 pin of the main control chip U1 via resistor R54. The START pin of the ECG / respiratory chip U2 is electrically connected to the PB12 pin of the main control chip U1 via resistor R55. The PD8 pin of the ECG / respiratory chip U2 is electrically connected to the PD8 pin of the main control chip U1 via resistor R56. The pin is electrically connected to the PD9 pin of the main control chip U1 through resistor R57, and the DIN pin of the ECG and respiration chip U2 is electrically connected to the PB14 pin of the main control chip U1 through resistor R60.

[0012] The positive and progressive effects of this utility model are as follows: The wearable physiological monitoring smart vest designed in this utility model can integrate all the components for detecting human physiological signals on the vest to form a smart vest, and use the smart vest to detect human electrocardiogram signals, respiratory signals and body temperature signals. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the outer layer of the vest body according to a preferred embodiment of the present invention.

[0014] Figure 2 This is a schematic diagram of the inner layer of the vest body according to a preferred embodiment of the present invention.

[0015] Figure 3 This is a structural diagram of the mounting position of the main unit housing in a preferred embodiment of the present invention.

[0016] Figure 4 The circuit diagram of the MCU main control circuit is a preferred embodiment of this utility model.

[0017] Figure 4a This is an enlarged view of the left side of the MCU main control circuit, which is a preferred embodiment of the present invention.

[0018] Figure 4b This is an enlarged view of the right side of the MCU main control circuit, which is a preferred embodiment of the present invention.

[0019] Figure 5 This is a circuit diagram of the ECG and respiratory acquisition front end of a preferred embodiment of the present invention.

[0020] Figure 6 This is a circuit diagram of the electrocardiogram and respiratory simulation front end of a preferred embodiment of the present invention.

[0021] Figure 7The circuit diagram of the temperature acquisition circuit is a preferred embodiment of this utility model.

[0022] Figure 8 This is a circuit diagram of the power supply circuit of a preferred embodiment of the present invention.

[0023] Figure 9 This is a circuit diagram of a WIFI module according to a preferred embodiment of the present invention. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] like Figure 1-9 As shown, this embodiment provides a wearable physiological monitoring smart vest, which includes a vest body 1. A mounting base 11 is fixed (e.g., glued) to the front of the vest body 1. A main unit housing 2 is mounted on the mounting base 11. A switch 3 is mounted on the main unit housing 2. An electrocardiogram and respiration acquisition front end, an electrocardiogram and respiration simulation front end, a temperature acquisition circuit, an MCU main control circuit, a power supply circuit, and a WIFI module are provided inside the main unit housing 2. A battery box 4 is also fixed (e.g. glued) to the front of the vest body 1. A battery is installed inside the battery box 4.

[0026] Specifically, the front of the vest body 1 is fixed with a mounting base 11 with a buckle 111. The main body housing 2 is mounted on the mounting base 11. The top of the main body housing 2 is embedded with a press-type snap fastener 21. When the press-type snap fastener 21 is pressed, the press-type snap fastener 21 moves downward along the outer wall of the buckle 111 and snaps the buckle 111 into the press-type snap fastener 21.

[0027] The inner layer of the vest body 1 is equipped with a first ECG electrode RA corresponding to the first intercostal space of the right clavicle midline, a second ECG electrode LA corresponding to the first intercostal space of the left clavicle midline, a third ECG electrode V1 corresponding to the fourth intercostal space of the right sternal border, a fourth ECG electrode V2 corresponding to the fourth intercostal space of the left sternal border, a fifth ECG electrode RL corresponding to the xiphoid process level of the right clavicle midline, a sixth ECG electrode LL corresponding to the xiphoid process level of the left clavicle midline, a first respiratory electrode V3 corresponding to the area near the fifth rib on the left side, a second respiratory electrode V4 corresponding to the area near the fifth rib on the right side, a third respiratory electrode V5 corresponding to the area near the fourth rib on the left side, and a fourth respiratory electrode V6 corresponding to the area near the fourth rib on the right side. The fifth ECG electrode RL is grounded. The inner layer of the vest body 1 is also equipped with a temperature sensor 6.

[0028] The first ECG electrode RA, the second ECG electrode LA, the third ECG electrode V1, the fourth ECG electrode V2, the fifth ECG electrode RL, the sixth ECG electrode LL, the first respiratory electrode V3, the second respiratory electrode V4, the third respiratory electrode V5, and the fourth respiratory electrode V6 are all electrically connected to the input terminal of the ECG and respiratory acquisition front end. The output terminal of the ECG and respiratory acquisition front end is electrically connected to the MCU main control circuit through the ECG and respiratory simulation front end. The temperature sensor 6 is electrically connected to the MCU main control circuit through the temperature acquisition circuit. The battery, switch 3, power supply circuit, and MCU main control circuit are electrically connected in sequence. The WIFI module is electrically connected to the MCU main control circuit.

[0029] The power supply circuit is used to convert the battery voltage to 3.3V when switch 3 is turned on. The 3.3V voltage is used to power the ECG and respiration acquisition front end, the ECG and respiration simulation front end, the temperature acquisition circuit, the MCU main control circuit, the power supply circuit and the WIFI module.

[0030] The ECG-respiratory acquisition front end is used to collect the ECG signals of the wearer under high pressure (such as the wearer being in a pressurized chamber with an air pressure of 10 MPa) through the first ECG electrode RA, the second ECG electrode LA, the third ECG electrode V1, the fourth ECG electrode V2, and the sixth ECG electrode LL. The ECG signals are amplified by the ECG-respiratory simulation front end and then transmitted to the MCU main control circuit. It also collects the respiratory signals of the wearer under high pressure through the first respiratory electrode V3, the second respiratory electrode V4, the third respiratory electrode V5, and the fourth respiratory electrode V6. The respiratory signals are amplified by the ECG-respiratory simulation front end and then transmitted to the MCU main control circuit.

[0031] The temperature acquisition circuit is used to collect the wearer's body temperature signal under high pressure environment through a temperature sensor and transmit it to the MCU main control circuit.

[0032] The MCU main control circuit is used to upload the wearer's electrocardiogram, respiratory and body temperature signals to the host computer for display under high pressure via the WIFI module.

[0033] Among them, such as Figure 4 , Figure 4a and Figure 4b As shown, the MCU main control circuit includes a main control chip, which uses a Cortex-M4 core microcontroller, model STM32F413VGT6. The PC14 pin (pin 8) and PC15 pin (pin 9) of the main control chip U1 are connected to a high-speed crystal oscillator circuit. The VCAP_1 pin (pin 48) of the main control chip U1 is grounded through capacitor C12, and the VCAP_2 pin (pin 73) of the main control chip U1 is grounded through capacitor C14. The OSC_IN pin (pin 12) and OSC_OUT pin (pin 13) of the main control chip U1 are connected to a low-speed crystal oscillator circuit. The PA13 pin (pin 72) and PA14 pin (pin 76) of the main control chip U1 are connected to the programming port for program programming. The PD3 pin (pin 84) of the main control chip U1 is electrically connected to pin 3 of the status indicator chip through resistor R2; the PD4 pin (pin 85) is electrically connected to pin 2 of the status indicator chip through resistor R3; the PD5 pin (pin 86) is electrically connected to pin 1 of the status indicator chip through resistor R4; and pin 4 of the status indicator chip is grounded. The model of the status indicator chip is GMIWA55321A. The PB2 pin (pin 37) of the main control chip U1 is connected to the programming port for program programming. Resistor R1 is grounded. The NRST pin (pin 14) of the main control chip U1 is connected to the reset circuit, which is grounded through decoupling capacitor C3. The BOOT0 pin (pin 94) of the main control chip U1 is grounded through resistor R6. The VBAT pin (pin 6) of the main control chip U1 is grounded through decoupling capacitor C4, the VDD_1 pin (pin 50) is grounded through decoupling capacitor C5, the VDD_2 pin (pin 75) is grounded through decoupling capacitor C6, the VDD_3 pin (pin 100) is grounded through decoupling capacitor C7, the VDD_4 pin (pin 28) is grounded through decoupling capacitor C8, and the VDD_5 pin... Pin 11 is grounded through decoupling capacitor C9. Pins VSS_1 (pin 49), VSS_2 (pin 74), VSS_3 (pin 99), VSS_4 (pin 27), and VSS_5 (pin 10) of the main control chip U1 are all grounded. Pin VDD (pin 19) of the main control chip U1 is grounded through decoupling capacitor C10, pin VDDA (pin 22) is grounded through resistor R7 and decoupling capacitor C10, pin VREF+ (pin 21) is grounded through resistor R7 and decoupling capacitor C10, and pin VSSA (pin 20) is grounded through resistor R9.

[0034] like Figure 5As shown, the ECG-respiratory acquisition front end includes: one end of resistor R16 is connected to the third ECG electrode V1 and grounded through electrostatic diode D1; the other end of resistor R16 is connected to the ECG-respiratory simulation front end and grounded through capacitor C27; one end of resistor R17 is connected to the third respiratory electrode V5 and grounded through electrostatic diode D2; the other end of resistor R17 is connected to the ECG-respiratory simulation front end and grounded through capacitor C28; one end of resistor R18 is connected to the second respiratory electrode V4 and grounded through electrostatic diode D3; the other end of resistor R18 is connected to the ECG-respiratory simulation front end and grounded through capacitor C29; one end of resistor R23 is connected to the first respiratory electrode V3 and grounded through electrostatic diode D4; the other end of resistor R23 is connected to the ECG-respiratory simulation front end and grounded through capacitor C30; one end of resistor R24 ​​is connected to the fourth ECG electrode V2 and grounded through electrostatic diode D5; the other end of resistor R24 ​​is connected to the ECG-respiratory simulation front end. The resistor R25 is also grounded through capacitor C31. One end of resistor R25 is connected to the first ECG electrode RA. It is also grounded through electrostatic diode D6. The other end of resistor R25 is connected to the ECG breathing simulation front end. It is also grounded through capacitor C32. One end of resistor R26 is connected to the sixth ECG electrode LL. It is also grounded through electrostatic diode D7. The other end of resistor R26 is connected to the ECG breathing simulation front end. It is also grounded through capacitor C33. One end of resistor R29 is connected to the second ECG electrode LA. It is also grounded through electrostatic diode D8. The other end of resistor R29 is connected to the ECG breathing simulation front end. It is also grounded through capacitor C34. One end of resistor R30 is connected to the fourth breathing electrode V6. It is also grounded through electrostatic diode D9. The other end of resistor R30 is connected to the ECG breathing simulation front end. It is also grounded through capacitor C35. One end of resistor R31 is connected to the fifth breathing electrode RL. It is also grounded through electrostatic diode D10. The other end of resistor R31 is connected to the ECG breathing simulation front end.

[0035] like Figure 6As shown, the ECG-respiratory simulation front-end uses the ECG-respiratory chip U2, model WL1298. Pin IN8N (pin 1) of the ECG-respiratory chip U2 is electrically connected to pin WCT (pin 64), and pin IN8P (pin 2) is electrically connected to the other end of resistor R16 (E_V1). Pin IN7N (pin 3) of the ECG-respiratory chip U2 is electrically connected to pin WCT (pin 64), and pin IN7P (pin 4) is reserved. Pin IN6N (pin 5) of the ECG-respiratory chip U2 is electrically connected to pin WCT (pin 64), and pin IN6P (pin 6) is reserved. Pin IN5N (pin 7) of the ECG-respiratory chip U2 is electrically connected to pin WCT (pin 64), and pin IN5P (pin 8) is also reserved. Reserved: The IN4N pin (pin 9) of the ECG / respiratory chip U2 is electrically connected to the WCT pin (pin 64); the IN4P pin (pin 10) is electrically connected to the other end of resistor R24 ​​(E_V2); the IN3N pin (pin 11) of the ECG / respiratory chip U2 is electrically connected to the other end of resistor R25 (E_RA); the IN3P pin (pin 12) of the ECG / respiratory chip U2 is electrically connected to the other end of resistor R26 (E_LL); the IN2N pin (pin 13) of the ECG / respiratory chip U2 is electrically connected to the other end of resistor R25 (E_RA); the IN2P pin (pin 12) of the ECG / respiratory chip U2 is electrically connected to the other end of resistor R29 (E_LA); the IN1 pin of the ECG / respiratory chip U2 is also electrically connected to the other end of resistor R29 (E_LA). The N pin (pin 15) is electrically connected to the other ends of resistors R23 (E_V3) and R17 (E_V5), respectively. The IN1P pin (pin 16) of the ECG / respiratory chip U2 is electrically connected to the other ends of resistors R18 (E_V4) and R30 (E_V6), respectively. The five AVDD pins (pins 19, 21, 22, 59, and 56) of the ECG / respiratory chip U2 are connected to analog ground through capacitors C54, C55, C56, C57, and C58, respectively. The five AVSS pins (pins 20, 23, 32, 58, and 57) of the ECG / respiratory chip U2 are connected to analog ground. The VRE pin of the ECG / respiratory chip U2... The FP pin (pin 24) is electrically connected to the VREF+ pin (pin 21) of the main control chip U1 and is used to input the VREFP reference voltage. The VREFN pin (pin 25) of the ECG / respiratory chip U2 is connected to analog ground. A parallel capacitor C60 and a capacitor C61 are connected between the VREFP pin (pin 24) and the VREFN pin (pin 25) of the ECG / respiratory chip U2. The VCAP4 pin (pin 26) of the ECG / respiratory chip U2 is connected to analog ground through capacitor C62, the VCAP1 pin (pin 28) is connected to analog ground through capacitor C63, and the VCAP2 pin (pin 30) is connected to analog ground through capacitor C64. The RESV1 pin (pin 31) of the ECG / respiratory chip U2 is grounded through resistor R59.The WCT pin (pin 64) of the ECG / respiratory chip U2 is connected to analog ground via capacitor C44. The RLDOUT pin (pin 63) of the ECG / respiratory chip U2 is electrically connected to the other end of resistor R31. A capacitor C47 and a resistor R42 are connected in parallel between the RLDOUT pin (pin 63) and the RLDINV pin (pin 61) of the ECG / respiratory chip U2. The VCAP3 pin (pin 55) of the ECG / respiratory chip U2 is connected to analog ground via capacitor C53. The AVDD1 pin of the ECG / respiratory chip U2... Pin 54 is connected to analog ground via resistor R45 and capacitor C59. Pin 53 (AVSS1) of the ECG / respiratory chip U2 is connected to analog ground via resistor R46. Pin 52 (CLKSEL) of the ECG / respiratory chip U2 is grounded via resistor R47. The three DGND pins (pins 51, 49, and 33) of the ECG / respiratory chip U2 are grounded, and the two DVDD pins (pins 50 and 48) are grounded via capacitors C50 and C51, respectively. The ECG / respiratory chip U2's... Pin 47 is electrically connected to pin PB1 (pin 36) of the main control chip U1 via resistor R48. Pin DOUT (pin 43) of the ECG / respiratory chip U2 is electrically connected to pin PD14 (pin 61) of the main control chip U1 via resistor R52. Pin SCLK (pin 40) of the ECG / respiratory chip U2 is electrically connected to pin PD13 (pin 60) of the main control chip U1 via resistor R54. Pin 39 is electrically connected to pin PB12 (pin 51) of the main control chip U1 via resistor R55. Pin 38 (START) of the ECG / respiratory chip U2 is electrically connected to pin PD8 (pin 55) of the main control chip U1 via resistor R56. Pin 36 is electrically connected to pin PD9 (pin 56) of the main control chip U1 via resistor R57, and pin 34 (DIN) of the ECG / respiratory chip U2 is electrically connected to pin PB14 (pin 53) of the main control chip U1 via resistor R60. The ECG / respiratory simulation front end transmits the acquired ECG and respiratory signals to the main control chip U1.

[0036] like Figure 7As shown, the temperature acquisition circuit includes: the positive input terminal of operational amplifier U4A (model LM2904) is connected to a 3.3V voltage through resistor R66 and grounded through diode D11; the negative input terminal of operational amplifier U4A is electrically connected to one end of resistor R64 and grounded through resistor R70; a capacitor C70 is connected in parallel with resistor R70; the control terminal of operational amplifier U4A is grounded and its power supply terminal is connected to a 3.3V voltage; the output terminal of operational amplifier U4A is electrically connected to one end of resistor R68; and one end of resistor R64 is connected to a temperature sensor (such as TJW0041B2). One end of the temperature sensor is connected to the other end of the resistor R68. The positive input terminal of the operational amplifier U4B (model LM2904) is electrically connected to the other end of the resistor R68 and is also grounded through the resistor R69. The negative input terminal of the operational amplifier U4B is electrically connected to the other end of the resistor R64 and is also electrically connected to the output terminal of the operational amplifier U4B through the resistor R65. A capacitor C68 is connected in parallel with the resistor R65. The output terminal of the operational amplifier U4B is electrically connected to the PC1 pin (pin 16) of the main control chip U1 and is used to output the temperature signal to the main control chip U1.

[0037] like Figure 8 As shown, the power supply circuit includes: a power conversion chip U7 (IP5306 model), a voltage conversion chip U9 (AMS1117-3.3 model), a voltage conversion chip U8 (XC6221A302MR-G model), and a power detection circuit. The VIN pin (pin 1) of the power conversion chip U7 is connected to the charging interface and is also grounded through capacitor C83 and resistor R83 and capacitor C85. The LED1 pin (pin 2) of the power conversion chip U7 is electrically connected to the anode of LED DS4 and the cathode of LED DS2, respectively. The cathode of LED DS4 and the anode of LED DS2 are electrically connected. The LED2 pin (pin 3) of the power conversion chip U7 is electrically connected to the anode of LED DS5 and the cathode of LED DS3, respectively. The cathode of LED DS5 and the anode of LED DS3 are electrically connected. The anode of diode DS3 is electrically connected, and the LED3 pin (pin 4) of power conversion chip U7 is electrically connected to the anode of LED DS3. The KEY pin (pin 5) of power conversion chip U7 is grounded through resistor R85 and switch 3. The BAT pin (pin 6) of power conversion chip U7 is grounded through capacitor C86. The SW pin (pin 7) of power conversion chip U7 is grounded through inductor L2, resistor R84 and capacitor C86, and also grounded through inductor L2 and capacitor C84. It is also connected to the battery interface RS1 through inductor L2. The VOUT pin (pin 8) of power conversion chip U7 is grounded through capacitors C79, C80, C81, C82 and resistor R82 respectively. The VOUT pin (pin 8) of power conversion chip U7 outputs a +5V voltage, thereby converting the battery voltage to a 5V voltage.

[0038] The ADJ pin (pin 1) of the voltage conversion chip U9 is grounded. The Vin pin (pin 3) of the voltage conversion chip U9 is connected to +5V voltage and is also grounded through capacitor C92. The +Vout pin (pin 2) of the voltage conversion chip U9 is grounded through resistor R91 and capacitor C93, as well as through capacitor C94 and capacitor C95. The +Vout pin (pin 2) of the voltage conversion chip U9 outputs 3.3V voltage and is also grounded through resistor R97 and LED DS6, thereby converting the 5V voltage to 3.3V voltage.

[0039] The VIN pin (pin 1) of the voltage conversion chip U8 is connected to a 3.3V voltage through resistor R96 and grounded through capacitor C89. The VSS pin (pin 2) of the voltage conversion chip U8 is grounded, and the CE pin (pin 3) is electrically connected to the PA4 pin (pin 29) of the main control chip. The VOUT pin (pin 5) of the voltage conversion chip U8 is grounded through capacitor C90, resistor R89 ​​and capacitor C91, and resistor R88 and capacitor C88. A +3V voltage is output between resistor R88 and capacitor C88, and a +3V voltage is output between resistor R89 ​​and capacitor C91.

[0040] The power detection circuit includes: one end of resistor R86 is electrically connected to the PC0 pin (pin 15) of the main control chip, and the other end is connected to the battery. One end of resistor R86 is grounded through resistor R87 and also grounded through capacitor C87. The power detection circuit is used to detect the battery voltage and transmit it to the main control chip U1. The main control chip U1 is used to enter the low power mode when the battery voltage is lower than 3V and enter the normal operation mode when the battery voltage is not lower than 3V.

[0041] like Figure 9 As shown, the WIFI module uses the ALX830 chip.

[0042] In this embodiment, a suitable vest body is designed based on the dynamic ergonomic mechanism of wearable equipment and the requirements for physiological detection efficiency. Multiple components are integrated into the vest body to form an integrated structure. While considering the scope of ergonomics, the vest body aims to meet the function of monitoring human physiological data, while also ensuring wearing comfort and aesthetics, and taking into account the needs of long-term wear in the pressurized chamber and ease of use.

[0043] The main fabric of the vest is made of elastic knitted fabric (92% cotton, 8% spandex), while the ultra-fine wires do not have corresponding elasticity. Based on the requirement of matching the elasticity of the wires and the fabric, a wire matching model was established, and an S-shaped wiring method was designed. The ultra-fine wires were woven into the preset positions of the underwear according to the design pattern. Using lamination technology, heat-pressed fabric-based adhesive strips were used to bond the wires to the fabric, reducing the slippage of the wires in the garment layers, improving abrasion resistance and waterproofing, without affecting comfort.

[0044] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A wearable smart vest for physiological monitoring, characterized in that, Used in high-pressure environments, it includes a vest body, a mounting base fixed to the front of the vest body, a main unit housing mounted on the mounting base, a switch mounted on the main unit housing, and an electrocardiogram and respiration acquisition front end, an electrocardiogram and respiration simulation front end, a temperature acquisition circuit, an MCU main control circuit, a power supply circuit and a WIFI module disposed inside the main unit housing. A battery box is also fixed to the front of the vest body, and a battery is installed inside the battery box. The inner layer of the vest body is equipped with a first ECG electrode (RA) corresponding to the first intercostal space of the right clavicle midline, a second ECG electrode (LA) corresponding to the first intercostal space of the left clavicle midline, a third ECG electrode (V1) corresponding to the fourth intercostal space of the right sternal border, a fourth ECG electrode (V2) corresponding to the fourth intercostal space of the left sternal border, a fifth ECG electrode (RL) corresponding to the xiphoid process level of the right clavicle midline, a sixth ECG electrode (LL) corresponding to the xiphoid process level of the left clavicle midline, a first respiratory electrode (V3) corresponding to the area near the fifth rib on the left side, a second respiratory electrode (V4) corresponding to the area near the fifth rib on the right side, a third respiratory electrode (V5) corresponding to the area near the fourth rib on the left side, and a fourth respiratory electrode (V6) corresponding to the area near the fourth rib on the right side. The fifth ECG electrode (RL) is grounded. The inner layer of the vest body is also equipped with a temperature sensor. The first ECG electrode (RA), the second ECG electrode (LA), the third ECG electrode (V1), the fourth ECG electrode (V2), the fifth ECG electrode (RL), the sixth ECG electrode (LL), the first respiratory electrode (V3), the second respiratory electrode (V4), the third respiratory electrode (V5), and the fourth respiratory electrode (V6) are all electrically connected to the input terminal of the ECG and respiratory acquisition front end. The output terminal of the ECG and respiratory acquisition front end is electrically connected to the MCU main control circuit through the ECG and respiratory simulation front end. The temperature sensor is electrically connected to the MCU main control circuit through the temperature acquisition circuit. The battery, switch, power supply circuit, and MCU main control circuit are electrically connected in sequence. The WIFI module is electrically connected to the MCU main control circuit. The main fabric of the vest is made of elastic knitted fabric. Based on the requirement of elastic adaptation between the wire and the fabric, an S-shaped wiring method is designed to weave the ultra-fine wire into the preset position of the underwear according to the design pattern. The lamination technology and hot-pressed cloth base adhesive strip are used to bond the wire to the fabric. The MCU main control circuit includes a main control chip, which uses a Cortex-M4 core microcontroller and its model is STM32F413VGT6. The ECG-respiratory acquisition front end includes: one end of resistor R16 connected to the third ECG electrode (V1) and grounded through electrostatic diode D1; the other end of resistor R16 connected to the ECG-respiratory simulation front end and grounded through capacitor C27; one end of resistor R17 connected to the third respiratory electrode (V5) and grounded through electrostatic diode D2; the other end of resistor R17 connected to the ECG-respiratory simulation front end and grounded through capacitor C28; one end of resistor R18 connected to the second respiratory electrode (V4) and grounded through electrostatic diode D3; the other end of resistor R18 connected to the ECG-respiratory simulation front end and grounded through capacitor C29; one end of resistor R23 connected to the first respiratory electrode (V3) and grounded through electrostatic diode D4; the other end of resistor R23 connected to the ECG-respiratory simulation front end and grounded through capacitor C30; one end of resistor R24 ​​connected to the fourth ECG electrode (V2) and grounded through electrostatic diode D5; the other end of resistor R24 ​​connected to the ECG-respiratory simulation front end. It is also grounded through capacitor C31. One end of resistor R25 is connected to the first ECG electrode (RA) and grounded through electrostatic diode D6. The other end of resistor R25 is connected to the ECG breathing simulation front end. It is also grounded through capacitor C32. One end of resistor R26 is connected to the sixth ECG electrode (LL) and grounded through electrostatic diode D7. The other end of resistor R26 is connected to the ECG breathing simulation front end. It is also grounded through capacitor C33. One end of resistor R29 is connected to the second ECG electrode (LA) and grounded through electrostatic diode D8. The other end of resistor R29 is connected to the ECG breathing simulation front end. It is also grounded through capacitor C34. One end of resistor R30 is connected to the fourth breathing electrode (V6) and grounded through electrostatic diode D9. The other end of resistor R30 is connected to the ECG breathing simulation front end. It is also grounded through capacitor C35. One end of resistor R31 is connected to the fifth breathing electrode (RL) and grounded through electrostatic diode D10. The other end of resistor R31 is connected to the ECG breathing simulation front end. The ECG-respiratory simulation front end uses an ECG-respiratory chip U2, model WL1298. Pin IN8N of the ECG-respiratory chip U2 is electrically connected to the WCT pin, and pin IN8P is electrically connected to the other end of resistor R16. Pin IN7N of the ECG-respiratory chip U2 is electrically connected to the WCT pin, and pin IN7P is reserved. Pin IN6N of the ECG-respiratory chip U2 is electrically connected to the WCT pin, and pin IN6P is reserved. Pin IN5N of the ECG-respiratory chip U2 is electrically connected to the WCT pin, and pin IN5P is reserved. Pin IN4N of the ECG-respiratory chip U2 is electrically connected to the WCT pin, and pin IN4P is electrically connected to the other end of resistor R24. Pin IN3N of the ECG-respiratory chip U2 is connected to resistor R25. The other end is electrically connected. The IN3P pin of the ECG / respiratory chip U2 is electrically connected to the other end of resistor R26. The IN2N pin of the ECG / respiratory chip U2 is electrically connected to the other end of resistor R25. The IN2P pin of the ECG / respiratory chip U2 is electrically connected to the other end of resistor R29. The IN1N pin of the ECG / respiratory chip U2 is electrically connected to the other ends of resistors R23 and R17 respectively. The IN1P pin of the ECG / respiratory chip U2 is electrically connected to the other ends of resistors R18 and R30 respectively. The five AVDD pins of the ECG / respiratory chip U2 are connected to analog ground through capacitors C54, C55, C56, C57, and C58 respectively. The five AVDD pins of the ECG / respiratory chip U2 are connected to analog ground. The SS pin is connected to analog ground. The VREFP pin of the ECG / respiratory chip U2 is electrically connected to the VREF+ pin of the main control chip U1 for inputting the VREFP reference voltage. The VREFN pin of the ECG / respiratory chip U2 is connected to analog ground. A parallel capacitor C60 and a capacitor C61 are connected between the VREFP and VREFN pins of the ECG / respiratory chip U2. The VCAP4 pin of the ECG / respiratory chip U2 is connected to analog ground through capacitor C62, the VCAP1 pin through capacitor C63, and the VCAP2 pin through capacitor C64. The RESV1 pin of the ECG / respiratory chip U2 is grounded through resistor R59. The WCT pin of the ECG / respiratory chip U2 is connected to analog ground through capacitor C44. The RLDOUT pin of chip U2 is electrically connected to the other end of resistor R31. A capacitor C47 and a resistor R42 are connected in parallel between the RLDOUT pin and the RLDINV pin of the ECG / respiratory chip U2. The VCAP3 pin of the ECG / respiratory chip U2 is connected to analog ground through capacitor C53. The AVDD1 pin of the ECG / respiratory chip U2 is connected to analog ground through resistor R45 and capacitor C59. The AVSS1 pin of the ECG / respiratory chip U2 is connected to analog ground through resistor R46. The CLKSEL pin of the ECG / respiratory chip U2 is grounded through resistor R47. The three DGND pins of the ECG / respiratory chip U2 are grounded, and the two DVDD pins are grounded through capacitors C50 and C51 respectively. The DOUT pin of the ECG / respiratory chip U2 is electrically connected to the PB1 pin of the main control chip U1 via resistor R48. The SCLK pin of the ECG / respiratory chip U2 is electrically connected to the PD14 pin of the main control chip U1 via resistor R52. The SCLK pin of the ECG / respiratory chip U2 is electrically connected to the PD13 pin of the main control chip U1 via resistor R54. The START pin of the ECG / respiratory chip U2 is electrically connected to the PB12 pin of the main control chip U1 via resistor R55. The PD8 pin of the ECG / respiratory chip U2 is electrically connected to the PD8 pin of the main control chip U1 via resistor R56. The pin is electrically connected to the PD9 pin of the main control chip U1 through resistor R57, and the DIN pin of the ECG and respiration chip U2 is electrically connected to the PB14 pin of the main control chip U1 through resistor R60.

2. The wearable physiological monitoring smart vest as described in claim 1, characterized in that, The PC14 and PC15 pins of the main control chip U1 are connected to a high-speed crystal oscillator circuit. The VCAP_1 pin of the main control chip U1 is grounded through capacitor C12, and the VCAP_2 pin is grounded through capacitor C14. The OSC_IN and OSC_OUT pins of the main control chip U1 are connected to a low-speed crystal oscillator circuit. The PA13 and PA14 pins of the main control chip U1 are connected to the programming port for program programming. The PD3 pin of the main control chip U1 is electrically connected to pin 3 of the status indicator chip through resistor R2; the PD4 pin is electrically connected to pin 2 of the status indicator chip through resistor R3; the PD5 pin is electrically connected to pin 1 of the status indicator chip through resistor R4; pin 4 of the status indicator chip is grounded; the PB2 pin of the main control chip U1 is grounded through resistor R1; and the NRST pin of the main control chip U1 is connected to the reset circuit. The reset circuit is grounded through decoupling capacitor C3. The BOOT0 pin of the main control chip U1 is grounded through resistor R6. The VBAT pin of the main control chip U1 is grounded through decoupling capacitor C4, the VDD_1 pin is grounded through decoupling capacitor C5, the VDD_2 pin is grounded through decoupling capacitor C6, the VDD_3 pin is grounded through decoupling capacitor C7, the VDD_4 pin is grounded through decoupling capacitor C8, and the VDD_5 pin is grounded through decoupling capacitor C9. The VSS_1, VSS_2, VSS_3, VSS_4, and VSS_5 pins of the main control chip U1 are all grounded. The VDD pin of the main control chip U1 is grounded through decoupling capacitor C10, the VDDA pin is grounded through resistor R7 and decoupling capacitor C10, the VREF+ pin is grounded through resistor R7 and decoupling capacitor C10, and the VSSA pin is grounded through resistor R9.

3. The wearable physiological monitoring smart vest as described in claim 2, characterized in that, The temperature acquisition circuit includes: the positive input terminal of operational amplifier U4A is connected to a 3.3V voltage through resistor R66 and grounded through diode D11; the negative input terminal of operational amplifier U4A is electrically connected to one end of resistor R64 and grounded through resistor R70; resistor R70 is connected in parallel with capacitor C70; the control terminal of operational amplifier U4A is grounded and the power supply terminal is connected to a 3.3V voltage; the output terminal of operational amplifier U4A is electrically connected to one end of resistor R68; one end of resistor R64 is connected to one end of the temperature sensor; one end of resistor R68 is connected to the other end of the temperature sensor; the positive input terminal of operational amplifier U4B is electrically connected to the other end of resistor R68 and grounded through resistor R69; the negative input terminal of operational amplifier U4B is electrically connected to the other end of resistor R64 and electrically connected to the output terminal of operational amplifier U4B through resistor R65; resistor R65 is connected in parallel with capacitor C68; and the output terminal of operational amplifier U4B is electrically connected to the PC1 pin of the main control chip U1.

4. The wearable physiological monitoring smart vest as described in claim 2, characterized in that, The power supply circuit includes: a power conversion chip U7 of model IP5306, a voltage conversion chip U9 of model AMS1117-3.3, and a voltage conversion chip U8 of model XC6221A302MR-G. The VIN pin of power conversion chip U7 is connected to the charging interface, grounded through capacitor C83, and grounded through resistor R83 and capacitor C85. The LED1 pin of power conversion chip U7 is electrically connected to the anode of LED DS4 and the cathode of LED DS2, respectively. The cathode of LED DS4 and the anode of LED DS2 are electrically connected. The LED2 pin of power conversion chip U7 is electrically connected to the anode of LED DS5 and the cathode of LED DS3, respectively. The cathode of diode DS5 is electrically connected to the anode of LED DS3. The LED3 pin of power conversion chip U7 is electrically connected to the anode of LED DS3. The KEY pin of power conversion chip U7 is grounded through resistor R85 and a switch. The BAT pin of power conversion chip U7 is grounded through capacitor C86. The SW pin of power conversion chip U7 is grounded through inductor L2, resistor R84 and capacitor C86, and also through inductor L2 and capacitor C84. It is also connected to the battery interface RS1 through inductor L2. The VOUT pin of power conversion chip U7 is grounded through capacitors C79, C80, C81, C82 and resistor R82 respectively. The VOUT pin of power conversion chip U7 outputs a +5V voltage. The ADJ pin of voltage converter chip U9 is grounded. The Vin pin of voltage converter chip U9 is connected to +5V voltage and is also grounded through capacitor C92. The +Vout pin of voltage converter chip U9 is grounded through resistor R91 and capacitor C93, as well as through capacitor C94 and capacitor C95. The +Vout pin of voltage converter chip U9 outputs 3.3V voltage and is also grounded through resistor R97 and LED DS6. The VIN pin of voltage converter chip U8 is connected to 3.3V through resistor R96 and grounded through capacitor C89. The VSS pin of voltage converter chip U8 is grounded, and the CE pin is electrically connected to the PA4 pin of the main control chip. The VOUT pin of voltage converter chip U8 is grounded through capacitor C90, resistor R89 ​​and capacitor C91, and resistor R88 and capacitor C88. A +3V voltage is output between resistor R88 and capacitor C88, and a +3V voltage is output between resistor R89 ​​and capacitor C91.

5. The wearable physiological monitoring smart vest as described in claim 4, characterized in that, The power supply circuit also includes a power detection circuit, which includes: one end of resistor R86 is electrically connected to the PC0 pin of the main control chip, and the other end is connected to the battery; one end of resistor R86 is grounded through resistor R87 and also grounded through capacitor C87.

6. The wearable physiological monitoring smart vest as described in claim 2, characterized in that, The WIFI module uses the ALX830 chip.

7. The wearable physiological monitoring smart vest as described in claim 1, characterized in that, The front of the vest body is fixed with a mounting base with buckles. The main body housing is mounted on the mounting base. The top of the main body housing is embedded with a press-type snap fastener. When the press-type snap fastener is pressed, the press-type snap fastener moves downward along the outer wall of the buckle and snaps the buckle into the press-type snap fastener.

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