Wearable finger tremor and oxyhemoglobin saturation signal monitoring system

Abstract

According to the wearable finger tremor and blood oxygen saturation degree signal monitoring system, when a power circuit receives an on signal of a switch, battery voltage is converted into power supply voltage to supply power to a finger tremor sensor, a blood oxygen saturation degree sensor, a blood oxygen integrated analog front end, an AD conversion circuit, an MCU main control circuit, the power circuit and a wireless communication circuit; when the power supply voltage is generated, the power indicating lamp is lightened; the blood oxygen integrated analog front end acquires a human body blood oxygen saturation degree signal in a high-pressure environment through a blood oxygen saturation degree sensor and transmits the signal to the MCU main control circuit; the finger tremor sensor collects human body finger tremor signals in a high-voltage environment, and the human body finger tremor signals are transmitted to the MCU main control circuit after being subjected to analog-to-digital conversion through the AD conversion circuit. The MCU main control circuit uploads a human body blood oxygen saturation degree signal and a finger tremor signal in a high-voltage environment through the wireless communication circuit, detects the voltage of the battery, and controls the state indicator lamp to be turned on to remind that the battery is insufficient in electric quantity when the voltage of the battery is lower than a set voltage value.

Description

Technical Field

[0001] The present invention relates to the technical field of physiological signal monitoring, and in particular to a wearable finger tremor and blood oxygen saturation signal monitoring system. Background Art

[0002] Most of the existing components for detecting human finger tremor signals and blood oxygen saturation signals are separately arranged, and there is no one-piece structure that integrates the components for detecting finger tremor signals and blood oxygen saturation signals on the gloves. For example: the utility model patent with application number CN2021218266113 and name of a tremor testing device for Parkinson's patients only discloses the components for detecting finger tremors on the gloves. Another example: the utility model patent with application number CN2018212331899 and name of a glove-type blood oxygen saturation detector only discloses the components for detecting blood oxygen saturation on the gloves. Based on this, the present invention designs a wearable finger tremor and blood oxygen saturation signal monitoring system, which can integrate the various components for detecting human finger tremor signals and blood oxygen saturation signals on the gloves. Summary of the invention

[0003] In view of the problems and shortcomings of the prior art, the present invention provides a wearable finger tremor and blood oxygen saturation signal monitoring system.

[0004] The present invention solves the above technical problems through the following technical solutions:

[0005] The present invention provides a wearable finger tremor and blood oxygen saturation signal monitoring system, which is characterized in that it comprises a smart glove, wherein the smart glove comprises a wrist covering part, a back of hand covering part, a finger surface covering part and a finger tip wrapping part which are connected in sequence, a host shell is fixed on the surface of the wrist covering part, a wrist strap is sewn on the wrist covering part, and the end of the wrist strap extends out of the wrist covering part to bind the wrist, a battery, a blood oxygen integrated analog front end, an AD conversion circuit, an MCU main control circuit, a power supply circuit and a wireless communication circuit are arranged in the host shell, and the host shell A switch, a power indicator light and a status indicator light are embedded on the body; a long strip is provided on the surface of the hand back covering part and the finger surface covering part along the length direction; an anti-static isolation film and a finger tremor sensor are provided in the long strip along the length direction; a blood oxygen saturation sensor is provided in the finger tip wrapping part; a finger surface strap is sewn on the finger surface covering part; an end of the finger surface strap extends out of the finger surface covering part to bind the fingers; a finger tip strap is sewn on the finger tip wrapping part; an end of the finger tip strap extends out of the finger tip wrapping part to bind the finger tip wrapping part;

[0006] The power supply circuit is used to convert the battery voltage into a power supply voltage to power the finger tremor sensor, the blood oxygen saturation sensor, the blood oxygen integrated analog front end, the AD conversion circuit, the MCU main control circuit, the power supply circuit and the wireless communication circuit when receiving the switch on signal, and the power indicator light is lit when the power supply voltage is generated;

[0007] The blood oxygen integrated analog front end is used to collect the blood oxygen saturation signal of the glove wearer in a high-voltage environment through the blood oxygen saturation sensor and transmit it to the MCU main control circuit;

[0008] The finger tremor sensor is used to collect the finger tremor signal of the glove wearer in a high-voltage environment and transmit it to the MCU main control circuit after analog-to-digital conversion by the AD conversion circuit;

[0009] The MCU main control circuit is used to upload the blood oxygen saturation signal and finger tremor signal of the glove wearer in the high-voltage environment to the host computer for display through the wireless communication circuit;

[0010] The MCU main control circuit is also used to detect the voltage of the battery, and when the voltage of the battery is lower than a set voltage value, the control status indicator light is turned on to indicate that the battery power is low.

[0011] The positive and progressive effects of the present invention are:

[0012] The present invention is suitable for collecting finger tremor signals and blood oxygen saturation of human body in a high pressure environment (10MP), and uploading the signals to a host computer for display through a wireless communication circuit. The present invention can integrate all components for detecting finger tremor signals and blood oxygen saturation signals on the gloves to form a smart glove and realize an integrated setting structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a control principle diagram of a wearable finger tremor and blood oxygen saturation signal monitoring system according to a preferred embodiment of the present invention.

[0014] Figure 2 and Figure 3 Schematic diagram of the structure of the smart gloves according to a preferred embodiment of the present invention.

[0015] Figure 4 Schematic diagram of the structure of the host housing of a preferred embodiment of the present invention.

[0016] Figure 5 FIG. 4 is a power supply circuit diagram of a preferred embodiment of the present invention.

[0017] Figure 6 The figure is a MCU main control circuit diagram of a preferred embodiment of the present invention.

[0018] Figure 7The circuit diagram of the blood oxygen saturation sensor and the blood oxygen integrated analog front end according to the preferred embodiment of the present invention.

[0019] Figure 8 FIG. 4 is a circuit diagram of a finger tremor sensor according to a preferred embodiment of the present invention.

[0020] Fig. 9 FIG. 4 is an AD conversion circuit diagram of a preferred embodiment of the present invention.

[0021] Fig.10 FIG. 4 is a wireless communication circuit diagram of a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0023] like Figure 1-4 As shown, this embodiment provides a wearable finger tremor and blood oxygen saturation signal monitoring system, which includes a smart glove 100, which includes a wrist covering part 10, a back of hand covering part 20, a finger surface covering part 30 and a fingertip wrapping part 40 connected in sequence, and the wrist covering part 10, the back of hand covering part 20 and the finger surface covering part 30 are integrally formed. A host housing 11 is fixed on the surface of the wrist covering part 10, and a wrist strap 12 is sewn on the wrist covering part 10. The end of the wrist strap 12 extends out of the wrist covering part 10 to bind the wrist. A battery 111, a blood oxygen integrated analog front end 112, an AD conversion circuit 113, an MCU main control circuit 114, a power circuit 115 and a wireless communication circuit 116 are arranged in the host housing 11. A switch 117, a power indicator light 118 and a status indicator light 119 are embedded in the host housing 11. The surfaces of the back of hand covering part 20 and the finger surface covering part 30 are along the length. A long strip portion 21 is provided, and an anti-static isolation film 22 and a finger tremor sensor 23 are provided in the long strip portion 21 along the length direction; a blood oxygen saturation sensor 41 is provided in the fingertip wrapping portion 40; a finger surface strap 31 is sewn on the finger surface covering portion 30, and the end of the finger surface strap 31 extends out of the finger surface covering portion 30 for binding the finger; a fingertip strap 42 is sewn on the fingertip wrapping portion 40, and the end of the fingertip strap 42 extends out of the fingertip wrapping portion 40 for binding the fingertip wrapping portion, so that the blood oxygen saturation sensor 41 is covered and attached to the fingertip.

[0024] The wrist covering part 10 , the back of the hand covering part 20 and the finger surface covering part 30 are made of elastic polyurethane fabric, the fingertip wrapping part 40 is made of velvet cloth, and the blood oxygen saturation sensor 41 is covered with velvet cloth.

[0025] This embodiment uses an L-shaped head for flexible covering, an anti-static isolation film for signal noise isolation, and a sewing machine sewing process.

[0026] The power supply circuit 115 is used to convert the voltage of the battery 111 into a power supply voltage to power the finger tremor sensor 23, the blood oxygen saturation sensor 41, the blood oxygen integrated analog front end 112, the AD conversion circuit 113, the MCU main control circuit 114, the power supply circuit 115 and the wireless communication circuit 116 when receiving the on signal of the switch 117, and the power indicator light 119 lights up when the power supply voltage is generated.

[0027] The blood oxygen integrated analog front end 112 is used to collect the blood oxygen saturation signal of the glove wearer in the high-voltage environment through the blood oxygen saturation sensor 41 and transmit it to the MCU main control circuit 114; the finger tremor sensor 23 is used to collect the finger tremor signal of the glove wearer in the high-voltage environment and transmit it to the MCU main control circuit 114 after analog-to-digital conversion by the AD conversion circuit 113; the MCU main control circuit 114 is used to upload the blood oxygen saturation signal and finger tremor signal of the glove wearer in the high-voltage environment to the host computer for display through the wireless communication circuit 116. The MCU main control circuit 114 is also used to detect the voltage of the battery 111, and when the battery voltage is lower than the set voltage value, the control status indicator 119 is lit to indicate that the battery power is low.

[0028] Among them, Figure 5As shown, the power supply circuit 115 includes: a power supply chip U8, model TPS63802DLAR, the EN pin (pin 1) of the power supply chip U8 is electrically connected to the pin 2 (middle position, reserved for backup) of the switch SW1 (i.e., switch 117), and the MODE pin (pin 2) is grounded, the AGND pin (pin 3) of the power supply chip U8 is electrically connected to the pin 3 of the switch SW1 through the resistor R46 (providing an off signal), and the AGND pin is also directly grounded, the FB pin (pin 4) of the power supply chip U8 is grounded through the resistor R47, and is also connected to the voltage VDD through the resistor R50, and is also grounded through the resistor R50 and the capacitor C44, the PG pin (pin 5) of the power supply chip U8 is connected between the resistor R50 and the capacitor C44 through the resistor R49, and the capacitor C44 is respectively connected in parallel with the capacitor C42 and the capacitor C43, and the PG pin (pin 5) of the power supply chip U8 is also connected to the base (pin 1) of the transistor Q2 through the resistor R51 The collector (pin 3) of the transistor Q2 is electrically connected to the cathode of the light-emitting diode LED4 (i.e., the power indicator light 118 uses the light-emitting diode LED4) through the resistor R48, and the emitter (pin 2) is grounded. The anode of the light-emitting diode LED4 is connected to the voltage VDD. The VOUT pin (pin 6) of the power chip U8 outputs the voltage VDD. The L2 pin (pin 7) of the power chip U8 is electrically connected to the L1 pin (pin 9) through the inductor L2. The GND pin (pin 8) of the power chip U8 is grounded. The VIN pin (pin 10) of the power chip U8 is electrically connected to the pin 1 of the switch SW1 (providing an open signal), and is grounded through the capacitors C39, C40 and C41 respectively, and is also electrically connected to the source (pin 2) of the MOS tube Q1. The gate (pin 1) of the transistor Q1 is grounded through the resistor R52, and the drain (pin 3) is electrically connected to the battery VBAT (i.e., the battery 111) through the fuse F2. Figure 5 In the figure, mark T14 is the positive terminal of the battery VBAT, and mark T15 is the negative terminal of the battery VBAT.

[0029] like Figure 6 As shown, the MCU main control circuit 114 includes a main control chip U3, and the model of the main control chip U3 is STM32L452CEU6. Figure 6The main control chip U3 is shown in two parts, U3A and U3B. The VBAT pin (pin 1), VDDA pin (pin 9) and three VDD pins (pin 24, pin 36 and pin 48) of the main control chip U3 are connected to the voltage VDD, the EP pin (pin 49), VSSA pin (pin 8) and three VSS pins (pin 23, pin 35 and pin 47) of the main control chip U3 are grounded, and the PC13 pin (pin 2) of the main control chip U3 is connected to the WDI pin (pin 3) of the low voltage detection and reset chip U4 (model TPS3823-33DBVR). The RESET# pin (pin 1) of the low voltage detection and reset chip U4 is connected to the voltage VDD through the resistor R20 and is also grounded through the capacitor C18. The GND pin (pin 2) of the low voltage detection and reset chip U4 is grounded, and the MR# pin (pin 3) is connected to the voltage VDD through the resistor R22. The VDD pin (pin 5) of the low voltage detection and reset chip U4 is directly connected to the voltage VDD and is also grounded through the capacitor C6. The PB0 pin (pin 18) of the main control chip U3 is grounded through the capacitor C11, grounded through the resistor R7, and connected to the battery through the resistor R10. VBAT is electrically connected to detect the battery voltage. When the battery voltage is analyzed to be less than 20%, the status indicator light 119 lights up to indicate that the battery power is low. The PB1 pin (pin 19) of the main control chip U3 is grounded through the capacitor C12 and connected to the voltage VDD through the resistor R11. The PC15 pin (pin 4) of the main control chip U3 is electrically connected to one end of the resistor R14 through the resistor R15, and is also electrically connected to the cathode of the light-emitting diode LED2 through the resistor R15. The anode of the light-emitting diode LED2 is electrically connected to one end of the resistor R13 and is also connected to the voltage VDD. The resistor R1 A status indicator light 119 is connected between the other end of the resistor R14 and the other end of the resistor R13, and the status indicator light 119 lights up when the battery voltage is less than 20%; the PC14 pin (pin 3) of the main control chip U3 is electrically connected to one end of the resistor R19 through the resistor R21, and is also electrically connected to the cathode of the light-emitting diode LED3 through the resistor R21, the anode of the light-emitting diode LED3 is electrically connected to one end of the resistor R18, and is also connected to the voltage VDD, and an indicator light can be connected between the other end of the resistor R19 and the other end of the resistor R18 (the indicator light is not connected in this embodiment, as a backup);The PH3 pin (pin 44) of the main control chip U3 is grounded through a resistor R12, the PA13 pin (pin 34) is electrically connected to the DIO pin of the download program interface CN5, the PA14 pin (pin 37) is electrically connected to the CLK pin of the download program interface CN5, the DIO pin of the download program interface CN5 is also electrically connected to the VCC pin of the download program interface CN5 through a resistor R16, the VCC pin of the download program interface CN5 is connected to the voltage VDD, the CLK pin of the download program interface CN5 is also electrically connected to the GND pin of the download program interface CN5 through a resistor R17, and the GND pin of the download program interface CN5 is grounded; the PA0 pin (pin 10), PA1 pin (pin 11), and PA2 pin (pin 12) of the main control chip U3 , PA3 pin (pin 13) and PB2 pin (pin 20) are all electrically connected to the wireless communication circuit; PA4 pin (pin 14), PA5 pin (pin 15), PA6 pin (pin 16) and PA7 pin (pin 17) of the main control chip U3 are all electrically connected to the AD conversion circuit; PA8 pin (pin 29), PB10 pin (pin 21), PB11 pin (pin 22), PB9 pin (pin 46), PB8 pin (pin 45), PB13 pin (pin 26), PB14 pin (pin 27), PB15 pin (pin 28), PB12 pin (pin 25), PA12 pin (pin 33) and PA11 pin (pin 32) of the main control chip U3 are all electrically connected to the blood oxygen integrated analog front end. ;

[0030] like Figure 7As shown, the blood oxygen saturation sensor 41 includes: a photoelectric transmitting tube LED (model HL5060_2P147W) and a photoelectric receiving tube PD (model HL5060_2P090B); the blood oxygen integrated analog front end includes: a blood oxygen acquisition chip U5, the TXP pin (pin 15) of the blood oxygen acquisition chip U5 is electrically connected to the positive electrode of the photoelectric transmitting tube LED, and is also electrically connected to the pin 3 of the photodiode D5, the pin 1 of the photodiode D5 is grounded, the TXN pin (pin 14) of the blood oxygen acquisition chip U5 is electrically connected to the negative electrode of the photoelectric transmitting tube LED, and is also electrically connected to the pin 3 of the photodiode D4, the pin 1 of the photodiode D4 is grounded, and the two LED_DRV_SUP pins (pin 18 and pin 17) of the blood oxygen acquisition chip U5 are electrically connected to the pin 2 of the photodiode D5 and the pin 2 of the photodiode D4 respectively. , the two LED_DRV_SUP pins of the blood oxygen collection chip U5 are both grounded through the capacitor C25, so that red light is emitted when forward conduction occurs, and infrared light is emitted when reverse conduction occurs; the INP pin (pin 2) of the blood oxygen collection chip U5 is electrically connected to the positive electrode of the photoelectric receiving tube PD, and is also electrically connected to the pin 3 of the photodiode D3, and the pin 1 of the photodiode D3 is grounded, the INN pin (pin 1) of the blood oxygen collection chip U5 is electrically connected to the negative electrode of the photoelectric receiving tube PD, and is also electrically connected to the pin 3 of the photodiode D2, and the pin 1 of the photodiode D2 is grounded, the two RX_ANA_SUP pins (pin 33 and pin 39) of the blood oxygen collection chip U5 are respectively electrically connected to the pin 2 of the photodiode D3 and the pin 2 of the photodiode D2, and the two RX_ANA_SUP pins of the blood oxygen collection chip U5 are both grounded through the capacitor C21;The VCM pin (pin 4) of the blood oxygen collection chip U5 is grounded through the resistor R24 ​​and the capacitor C19, the BG pin (pin 7) is grounded through the capacitor C20, the TX_REF pin (pin 9) is grounded through the capacitor C22, and the TX_CTRL_SUP pin (pin 11) is grounded through the capacitor C24. The AFE_PDN# pin (pin 20) of the blood oxygen collection chip U5 is electrically connected to the PB10 pin (pin 21) of the main control chip U3, the DIAG_END pin (pin 21) is electrically connected to the PB11 pin (pin 22) of the main control chip U3 through the resistor in the first row of resistors, and the LED_ALM pin ( The PD_ALM pin (pin 23) is electrically connected to the PB8 pin (pin 45) of the main control chip U3 through the resistors in the first row of resistors, the SCLK pin (pin 24) is electrically connected to the PB13 pin (pin 26) of the main control chip U3 through the resistors in the first row of resistors, the SPISOMI pin (pin 25) is electrically connected to the PB14 pin (pin 27) of the main control chip U3 through the resistors in the first row of resistors, and the SPISIMO pin (pin 26) is electrically connected to the PB14 pin (pin 27) of the main control chip U3 through the resistors in the first row of resistors. The 5 pin (pin 28) of the blood oxygen collection chip U5 is electrically connected, the SPISTE pin (pin 27) is electrically connected to the PB12 pin (pin 25) of the main control chip U3 through the resistor in the first row of resistors, the ADC_RDY pin (pin 28) is electrically connected to the PA12 pin (pin 33) of the main control chip U3 through the resistor in the first row of resistors, and the RESET# pin (pin 29) is electrically connected to the PA11 pin (pin 32) of the main control chip U3 through the resistor in the first row of resistors; the CLKOUT pin (pin 30) of the blood oxygen collection chip U5 is grounded through the resistor R26, and the RX_DIG_SUP pin (pin 31) is connected to the capacitor C2 3 grounded, RX_ANA_SUP pin (pin 33) grounded through capacitor C21, XOUT pin (pin 37) grounded through resistor R25, XIN pin (pin 38) electrically connected to PA8 pin (pin 29) of main control chip U3 through resistor R23; three RX_ANA_GND pins (pin 3, pin 40 and pin 36), VSS pin (pin 8), three LED_DRV_GND pins (pin 12, pin 13 and pin 16), two RX_DIG_GND pins (pin 19 and pin 32), and EP pin (pin 41) of blood oxygen collection chip U5 are grounded. ;

[0031] Moreover, the two LED_DRV_SUP pins (pin 18 and pin 17) of the blood oxygen collection chip U5 are connected to the voltage VDD through the magnetic bead FB4 to detect whether there is a problem with the photoelectric transmitting end; the two RX_ANA_SUP pins (pin 33 and pin 39) of the blood oxygen collection chip U5 are connected to the voltage VDD through the magnetic bead FB3 to detect whether there is a problem with the photoelectric receiving end; the RX_DIG_SUP pin (pin 31) of the blood oxygen collection chip U5 is connected to the voltage VDD through the resistor R31, and the TX_CTRL_SUP pin (pin 11) is connected to the voltage VDD through the resistor R32 to detect whether there are problems with components.

[0032] like Figure 8 As shown, the finger tremor sensor 23 includes: a PVDF piezoelectric film U2 (model LDT0-028K) and an operational amplifier U7 (model TLV2771IDBVR), the positive electrode of the PVDF piezoelectric film U2 is electrically connected to the negative input terminal (pin 4) of the operational amplifier U7, the negative electrode of the PVDF piezoelectric film U2 is electrically connected to the positive input terminal (pin 3) of the operational amplifier U7, the negative electrode is also connected to the voltage VDD through the resistor R4, the negative electrode is also grounded through the resistor R3, and the negative electrode is also grounded through the capacitor C5, the negative input terminal of the operational amplifier U7 is electrically connected to the output terminal (pin 1) of the operational amplifier U7 through the resistor RF, the resistor RF is connected in parallel with the capacitor CF, the output terminal of the operational amplifier U7 is electrically connected to the AD conversion circuit through the resistor R2, and is also grounded through the resistor R2 and the capacitor C4, the upper terminal (pin 5) of the operational amplifier U7 is connected to the voltage VDD, and is also grounded through the capacitor C3, and the lower terminal (pin 2) of the operational amplifier U7 is grounded.

[0033] like Fig. 9As shown, the AD conversion circuit includes: an AD conversion chip U6, the model of the AD conversion chip U6 is AD7124-4BCPZ-RL7, the REGCAPD pin (pin 1) of the AD conversion chip U6 is grounded through a capacitor C26, the IOVDD pin (pin 2) is connected to the voltage VDD, and the DGND pin (pin 3) is grounded, the AIN0 pin (pin 4) of the AD conversion chip U6 is electrically connected to the resistor R2 at the output end of the operational amplifier U7, the AIN1 pin (pin 5) and the AIN3 pin (pin 9) are grounded, the REFIN1+ pin (pin 12) of the AD conversion chip U6 is connected to the voltage VDD, the REFIN1- pin (pin 13) is grounded, the AIN5 pin (pin 17) is grounded, and the AIN7 pin (pin 21) is grounded, the REFOUT pin (pin 22) of the AD conversion chip U6 is grounded through a capacitor C28, the AVSS pin (pin 23) is grounded, and the REFOUT pin (pin 23) of the AD conversion chip U6 is grounded. The GCAPA pin (pin 24) is grounded through capacitor C27, the PSW pin (pin 25) is grounded, the AVDD pin (pin 26) is connected to the voltage VDD, the SYNC# pin (pin 27) is connected to the voltage VDD through resistor R37, the DOUT pin (pin 28) of the AD conversion chip U6 is electrically connected to the PA6 pin (pin 16) of the main control chip U3 through the resistor in the second row of resistors, the DIN pin (pin 29) is electrically connected to the PA7 pin (pin 17) of the main control chip U3 through the resistor in the second row of resistors, the SCLK pin (pin 30) is electrically connected to the PA5 pin (pin 15) of the main control chip U3 through the resistor in the second row of resistors, the CS# pin (pin 32) is electrically connected to the PA4 pin (pin 14) of the main control chip U3 through the resistor in the second row of resistors, the CLK pin (pin 31) of the AD conversion chip U6 is grounded through resistor R6, and the EP pin (pin 33) is grounded.

[0034] like Fig.10 As shown, the wireless communication circuit includes: a wireless communication chip U1 (composed of Fig.10The wireless communication chip U1 is composed of U1A, U1B and U1C in the figure), the model of the wireless communication chip U1 is ESP32-PICO-D4, the IO19 pin (pin 38) of the wireless communication chip U1 is electrically connected to the PA2 pin (pin 12) of the main control chip U3 through the resistor R2, the IO22 pin (pin 39) is electrically connected to the PA3 pin (pin 13) of the main control chip U3 through the resistor R3, the EN pin (pin 9) is electrically connected to the PB2 pin (pin 20) of the main control chip U3 through the resistor R4, the IO14 pin (pin 17) is electrically connected to the PA0 pin (pin 10) of the main control chip U3, and the IO15 pin (pin 21) is electrically connected to the PA1 pin (pin 11) of the main control chip U3. The three VDDA of the wireless communication chip U1 The pins (pin 1, pin 43 and pin 46), two VDDA3P3 pins (pin 3 and pin 4), VDD3P3_RTC pin (pin 19) and VDD3P3_CPU pin (pin 37) are all connected to the voltage VDD, and are also grounded through capacitor C1, grounded through capacitor C2, and grounded through capacitor C3. The GND pin (pin 49) of the wireless communication chip U1 is grounded, the LNA_IN pin (pin 2) is electrically connected to the antenna IPEX1 through resistor R1 and inductor L1, and is also grounded through resistor R1 and capacitor C4, and is also grounded through resistor R1, inductor L1 and capacitor C5. The antenna IPEX1 is grounded, and the IO12 pin (pin 18) of the wireless communication chip U1 is connected to the voltage VDD through resistor R5.

[0035] The finger tremor frequency that can be detected by the present invention is between 0-50 Hz; the blood oxygen saturation is 55%-100% in a state without body movement.

[0036] The present invention is used for carrying out finger detection and blood oxygen saturation detection, accurately collecting finger tremor signals without affecting the hand activities of the diver, and collecting blood oxygen saturation in a non-movement state.

[0037] Although the specific embodiments of the present invention are described above, those skilled in the art should understand that these are only examples, and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A wearable finger tremor and blood oxygen saturation signal monitoring system, characterized in that: It comprises a smart glove, which comprises a wrist covering part, a back of hand covering part, a finger surface covering part and a finger tip wrapping part which are connected in sequence, a host shell is fixed on the surface of the wrist covering part, a wrist strap is sewn on the wrist covering part, and the end of the wrist strap extends out of the wrist covering part for binding the wrist, a battery, a blood oxygen integrated analog front end, an AD conversion circuit, an MCU main control circuit, a power circuit and a wireless communication circuit are arranged in the host shell, a switch, a power indicator light and a status indicator light are embedded in the host shell, a long strip is arranged on the surface of the back of hand covering part and the finger surface covering part along the length direction, an antistatic isolation film and a finger tremor sensor are arranged in the long strip along the length direction, a blood oxygen saturation sensor is arranged in the finger tip wrapping part, a finger surface strap is sewn on the finger surface covering part, and the end of the finger surface strap extends out of the finger surface covering part for binding the finger, a finger tip strap is sewn on the finger tip wrapping part, and the end of the finger tip strap extends out of the finger tip wrapping part for binding the finger tip wrapping part; The power supply circuit is used to convert the battery voltage into a power supply voltage to power the finger tremor sensor, the blood oxygen saturation sensor, the blood oxygen integrated analog front end, the AD conversion circuit, the MCU main control circuit, the power supply circuit and the wireless communication circuit when receiving the switch on signal, and the power indicator light is lit when the power supply voltage is generated; The blood oxygen integrated analog front end is used to collect the blood oxygen saturation signal of the glove wearer in a high-voltage environment through the blood oxygen saturation sensor and transmit it to the MCU main control circuit; The finger tremor sensor is used to collect the finger tremor signal of the glove wearer in a high-voltage environment and transmit it to the MCU main control circuit after analog-to-digital conversion by the AD conversion circuit; The MCU main control circuit is used to upload the blood oxygen saturation signal and finger tremor signal of the glove wearer in the high-voltage environment to the host computer for display through the wireless communication circuit; The MCU main control circuit is also used to detect the voltage of the battery, and when the voltage of the battery is lower than a set voltage value, the control status indicator light is turned on to indicate that the battery power is low.

2. The wearable finger tremor and blood oxygen saturation signal monitoring system according to claim 1, characterized in that: The MCU main control circuit includes a main control chip of model STM32L452CEU6; The VBAT pin, VDDA pin and three VDD pins of the main control chip U3 are connected to the voltage VDD, the EP pin, VSSA pin and three VSS pins of the main control chip U3 are grounded, the PC13 pin of the main control chip U3 is electrically connected to the WDI pin of the low voltage detection and reset chip U4, the RESET# pin of the low voltage detection and reset chip U4 is connected to the voltage VDD through the resistor R20 and is also grounded through the capacitor C18, the GND pin of the low voltage detection and reset chip U4 is grounded, the MR# pin is connected to the voltage VDD through the resistor R22, and the VDD pin of the low voltage detection and reset chip U4 is directly connected to the voltage VD D. It is also grounded through capacitor C6. The PB0 pin of the main control chip U3 is grounded through capacitor C11, grounded through resistor R7, and electrically connected to the battery through resistor R10 to detect the battery voltage. When the battery voltage is analyzed to be lower than the set voltage value, the status indicator light is on; the PB1 pin of the main control chip U3 is grounded through capacitor C12 and connected to voltage VDD through resistor R11. The PC15 pin of the main control chip U3 is electrically connected to one end of resistor R14 through resistor R15, and is also electrically connected to the cathode of light-emitting diode LED2 through resistor R15. The anode of light-emitting diode LED2 is electrically connected to one end of resistor R13. , and is also connected to the voltage VDD, and a status indicator light is connected between the other end of the resistor R14 and the other end of the resistor R13; the PH3 pin of the main control chip U3 is grounded through the resistor R12, the PA13 pin is electrically connected to the DIO pin of the download program interface CN5, the PA14 pin is electrically connected to the CLK pin of the download program interface CN5, the DIO pin of the download program interface CN5 is also electrically connected to the VCC pin of the download program interface CN5 through the resistor R16, the VCC pin of the download program interface CN5 is connected to the voltage VDD, and the CLK pin of the download program interface CN5 is also connected to the download program interface CN5 through the resistor R17 The GND pin of the download program interface CN5 is electrically connected to ground; the PA0 pin, PA1 pin, PA2 pin, PA3 pin and PB2 pin of the main control chip U3 are all electrically connected to the wireless communication circuit; the PA4 pin, PA5 pin, PA6 pin and PA7 pin of the main control chip U3 are all electrically connected to the AD conversion circuit; the PA8 pin, PB10 pin, PB11 pin, PB9 pin, PB8 pin, PB13 pin, PB14 pin, PB15 pin, PB12 pin, PA12 pin and PA11 pin of the main control chip U3 are all electrically connected to the blood oxygen integrated analog front end.

3. The wearable finger tremor and blood oxygen saturation signal monitoring system as claimed in claim 2, characterized in that: The blood oxygen saturation sensor includes: a photoelectric transmitting tube LED and a photoelectric receiving tube PD; the blood oxygen integrated analog front end includes: a blood oxygen acquisition chip U5, the TXP pin of the blood oxygen acquisition chip U5 is electrically connected to the positive pole of the photoelectric transmitting tube LED, and is also electrically connected to pin 3 of the photodiode D5, and pin 1 of the photodiode D5 is grounded, the TXN pin of the blood oxygen acquisition chip U5 is electrically connected to the negative pole of the photoelectric transmitting tube LED, and is also electrically connected to pin 3 of the photodiode D4, and pin 1 of the photodiode D4 is grounded, and the two LED_DRV_SUP pins of the blood oxygen acquisition chip U5 are electrically connected to pin 2 of the photodiode D5 and pin 2 of the photodiode D4 respectively, and the blood The two LED_DRV_SUP pins of the oxygen collection chip U5 are grounded through the capacitor C25, the INP pin of the blood oxygen collection chip U5 is electrically connected to the positive electrode of the photoelectric receiving tube PD, and is also electrically connected to the pin 3 of the photodiode D3, the pin 1 of the photodiode D3 is grounded, the INN pin of the blood oxygen collection chip U5 is electrically connected to the negative electrode of the photoelectric receiving tube PD, and is also electrically connected to the pin 3 of the photodiode D2, the pin 1 of the photodiode D2 is grounded, the two RX_ANA_SUP pins of the blood oxygen collection chip U5 are electrically connected to the pin 2 of the photodiode D3 and the pin 2 of the photodiode D2, respectively, the two RX_ANA_SUP pins of the blood oxygen collection chip U5 The VCM pin of the blood oxygen collection chip U5 is grounded through the resistor R24 ​​and the capacitor C19, the BG pin is grounded through the capacitor C20, the TX_REF pin is grounded through the capacitor C22, and the TX_CTRL_SUP pin is grounded through the capacitor C24. The AFE_PDN# pin of the blood oxygen collection chip U5 is electrically connected to the PB10 pin of the main control chip U3, the DIAG_END pin is electrically connected to the PB11 pin of the main control chip U3 through the resistor in the first row of resistors, the LED_ALM pin is electrically connected to the PB9 pin of the main control chip U3 through the resistor in the first row of resistors, and the PD_ALM pin is electrically connected to the main control chip U3 through the resistor in the first row of resistors. The PB8 pin of the main control chip U3 is electrically connected, the SCLK pin is electrically connected to the PB13 pin of the main control chip U3 through the resistor in the first row of resistors, the SPISOMI pin is electrically connected to the PB14 pin of the main control chip U3 through the resistor in the first row of resistors, the SPISIMO pin is electrically connected to the PB15 pin of the main control chip U3 through the resistor in the first row of resistors, the SPISTE pin is electrically connected to the PB12 pin of the main control chip U3 through the resistor in the first row of resistors, the ADC_RDY pin is electrically connected to the PA12 pin of the main control chip U3 through the resistor in the first row of resistors, and the RESET# pin is electrically connected to the PA11 pin of the main control chip U3 through the resistor in the first row of resistors.The CLKOUT pin of the blood oxygen collection chip U5 is grounded through resistor R26, the RX_DIG_SUP pin is grounded through capacitor C23, the RX_ANA_SUP pin is grounded through capacitor C21, the XOUT pin is grounded through resistor R25, and the XIN pin is electrically connected to the PA8 pin of the main control chip U3 through resistor R23. The three RX_ANA_GND pins, VSS pin, three LED_DRV_GND pins, two RX_DIG_GND pins, and EP pin of the blood oxygen collection chip U5 are grounded.

4. The wearable finger tremor and blood oxygen saturation signal monitoring system as claimed in claim 3, characterized in that: The two LED_DRV_SUP pins of the blood oxygen collection chip U5 are connected to the voltage VDD through the magnetic bead FB4 to detect whether there is a problem with the photoelectric transmitter; The two RX_ANA_SUP pins of the blood oxygen collection chip U5 are connected to the voltage VDD through the magnetic bead FB3 to detect whether there is a problem with the photoelectric receiving end; The RX_DIG_SUP pin of the blood oxygen collection chip U5 is connected to the voltage VDD through the resistor R31, and the TX_CTRL_SUP pin is connected to the voltage VDD through the resistor R32, which are used to detect whether there are any problems with the components.

5. The wearable finger tremor and blood oxygen saturation signal monitoring system as claimed in claim 2, characterized in that: The finger tremor sensor includes: a PVDF piezoelectric film U2 and an operational amplifier U7, wherein the positive electrode of the PVDF piezoelectric film U2 is electrically connected to the negative input terminal of the operational amplifier U7, the negative electrode of the PVDF piezoelectric film U2 is electrically connected to the positive input terminal of the operational amplifier U7, the negative electrode is also connected to the voltage VDD through a resistor R4, the negative electrode is also grounded through a resistor R3, and the negative electrode is also grounded through a capacitor C5, the negative input terminal of the operational amplifier U7 is electrically connected to the output terminal of the operational amplifier U7 through a resistor RF, the resistor RF is connected in parallel with the capacitor CF, and the output terminal of the operational amplifier U7 is electrically connected to the AD conversion circuit through a resistor R2, and is also grounded through the resistor R2 and the capacitor C4; The AD conversion circuit includes: an AD conversion chip U6, a REGCAPD pin of the AD conversion chip U6 is grounded through a capacitor C26, an IOVDD pin is connected to a voltage VDD, and a DGND pin is grounded, an AIN0 pin of the AD conversion chip U6 is electrically connected to a resistor R2, an AIN1 pin and an AIN3 pin are grounded, a REFIN1+ pin of the AD conversion chip U6 is connected to a voltage VDD, a REFIN1- pin is grounded, an AIN5 pin is grounded, and an AIN7 pin is grounded, a REFOUT pin of the AD conversion chip U6 is grounded through a capacitor C28, an AVSS pin is grounded, and a REGCAPA pin is connected to a capacitor C 27 is grounded, the PSW pin is grounded, the AVDD pin is connected to the voltage VDD, the SYNC# pin is connected to the voltage VDD through the resistor R37, the DOUT pin of the AD conversion chip U6 is electrically connected to the PA6 pin of the main control chip U3 through the resistor in the second resistor array, the DIN pin is electrically connected to the PA7 pin of the main control chip U3 through the resistor in the second resistor array, the SCLK pin is electrically connected to the PA5 pin of the main control chip U3 through the resistor in the second resistor array, the CS# pin is electrically connected to the PA4 pin of the main control chip U3 through the resistor in the second resistor array, the CLK pin of the AD conversion chip U6 is grounded through the resistor R6, and the EP pin is grounded.

6. The wearable finger tremor and blood oxygen saturation signal monitoring system as claimed in claim 2, characterized in that: The wireless communication circuit includes: a wireless communication chip U1, an IO19 pin of the wireless communication chip U1 electrically connected to the PA2 pin of the main control chip U3 through a resistor R2, an IO22 pin electrically connected to the PA3 pin of the main control chip U3 through a resistor R3, an EN pin electrically connected to the PB2 pin of the main control chip U3 through a resistor R4, an IO14 pin electrically connected to the PA0 pin of the main control chip U3, an IO15 pin electrically connected to the PA1 pin of the main control chip U3, three VDDA pins and two VDDA3P3 pins of the wireless communication chip U1. , the VDD3P3_RTC pin and the VDD3P3_CPU pin are both connected to the voltage VDD, and are also grounded through the capacitor C1, and are also grounded through the capacitor C2, and are also grounded through the capacitor C3. The GND pin of the wireless communication chip U1 is grounded, the LNA_IN pin is electrically connected to the antenna IPEX1 through the resistor R1 and the inductor L1, and is also grounded through the resistor R1 and the capacitor C4, and is also grounded through the resistor R1, the inductor L1 and the capacitor C5. The antenna IPEX1 is grounded, and the IO12 pin of the wireless communication chip U1 is connected to the voltage VDD through the resistor R5.

7. The wearable finger tremor and blood oxygen saturation signal monitoring system according to claim 1, characterized in that: The power supply circuit includes: a power supply chip U8, an EN pin of the power supply chip U8 is electrically connected to pin 2 of the switch SW1, and a MODE pin is grounded; an AGND pin of the power supply chip U8 is electrically connected to pin 3 of the switch SW1 through a resistor R46 to provide an off signal and is also directly grounded; an FB pin of the power supply chip U8 is grounded through a resistor R47, is also connected to a voltage VDD through a resistor R50, and is also grounded through a resistor R50 and a capacitor C44; a PG pin of the power supply chip U8 is connected between the resistor R50 and the capacitor C44 through a resistor R49, and the capacitor C44 is respectively connected in parallel with the capacitor C42 and the capacitor C43; and the PG pin of the power supply chip U8 is also electrically connected to the base of the transistor Q2 through a resistor R51. The collector of the transistor Q2 is electrically connected to the cathode of the light-emitting diode LED4 serving as the power indicator light through the resistor R48, and the emitter is grounded. The anode of the light-emitting diode LED4 is connected to the voltage VDD. The VOUT pin of the power chip U8 outputs the voltage VDD. The L2 pin of the power chip U8 is electrically connected to the L1 pin through the inductor L2. The GND pin of the power chip U8 is grounded. The VIN pin of the power chip U8 is electrically connected to the pin 1 of the switch SW1 to provide an opening signal, and is also grounded through capacitors C39, C40 and C41 respectively, and is also electrically connected to the source of the MOS tube Q1. The gate of the transistor Q1 is grounded through the resistor R52, and the drain is electrically connected to the battery through the fuse F2.

8. The wearable finger tremor and blood oxygen saturation signal monitoring system according to claim 1, characterized in that: The wrist covering part, the back of the hand covering part and the finger surface covering part are integrally formed, the fabrics of the wrist covering part, the back of the hand covering part and the finger surface covering part are made of elastic polyurethane fabric, and the finger tip wrapping part is made of velvet cloth.

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