Single signal bus vagina electrode control circuit

Abstract

The utility model discloses a single signal bus vagina electrode control circuit, and relates to the technical field of medical equipment, the circuit comprises a host and a vagina electrode, the host comprises a single chip microcomputer U1, a power supply VDD, a pull-up resistor R1, and a host interface J1; the vagina electrode comprises a chip U2, a pull-down resistor R2, an electrode interface J2, an acquisition / electrical stimulation electrode slice 1, an acquisition / electrical stimulation electrode slice 2 and an acquisition reference electrode slice; the host and the vagina electrode are connected through a single signal bus and a ground wire, a single chip microcomputer U1 in the host and a chip U2 of the vagina electrode carry out signal interaction through the single signal bus, and the functions of plugging detection, read-write communication and exception handling of the vagina electrode are achieved; according to the design of the utility model, the hardware design is simplified, the cost is reduced, the core functions such as myoelectricity acquisition are not influenced, and the functions of the equipment are accurate and stable.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical equipment technical field, concretely is a single signal bus vaginal electrode control circuit. BACKGROUND

[0002] In the medical field, the household pelvic floor rehabilitation product develops rapidly in recent years, and is favored by many consumers because of its affordable price, convenient use and good protection of user privacy. This kind of product mainly plays a role through the external vaginal electrode of the host computer. The vaginal electrode is responsible for collecting human body myoelectric signal on one hand, and provides data basis for muscle strength analysis. On the other hand, it outputs electric stimulation signal to realize electric stimulation treatment of nerve and muscle.

[0003] In order to ensure the accuracy of the use of the equipment, remind the user to replace the old electrode in time to protect the health and safety, the vaginal electrode usually has a built-in chip to store the key data such as equipment model, serial number, personal information and use time, and works with the personal host computer. However, the vaginal electrode with chip of the current household pelvic floor rehabilitation product only has a simple communication function for reading and writing data. Reading and writing data in the collection state will greatly interfere with the collection function, resulting in inaccurate collection. Therefore, the host computer can only communicate with the vaginal electrode at the moment of inserting the vaginal electrode or after the collection and electric stimulation training is completed, which greatly limits the whole process detection of the vaginal electrode. In addition, there is signal jitter when the vaginal electrode is inserted into the host computer, which leads to the problem of low probability of not being recognized or being recognized incorrectly. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a single signal bus vaginal electrode control circuit to solve the problems in the above background technology.

[0005] In order to solve the above technical problems, the utility model provides the following technical scheme: a single signal bus vaginal electrode control circuit, the control circuit includes a host computer and a vaginal electrode, the host computer and the vaginal electrode are connected through a single signal bus and a ground wire, and the host computer controls the vaginal electrode through the single signal bus, so as to realize the plug-in detection, read-write communication and abnormal processing function of the vaginal electrode.

[0006] In the above technical scheme, the single signal bus is the main channel for data exchange and control operation between the host computer and the vaginal electrode. The single-chip microcomputer U1 of the host computer and the chip U2 of the vaginal electrode realize information interaction through the single signal bus. The ground wire provides a unified zero potential reference point for the whole circuit. The voltage measurement and logic level judgment of the single-chip microcomputer U1 of the host computer and the chip U2 of the vaginal electrode are based on the ground wire as the reference standard. In the process of single signal bus communication, the ground wire is part of the signal loop, which provides a complete loop for signal transmission.

[0007] The host comprises a single-chip microcomputer U1, a power supply VDD, a pull-up resistor R1 and a host interface J1; a GPIO interface of the single-chip microcomputer U1 is connected with one end of the pull-up resistor R1, the other end of the pull-up resistor R1 is connected with the power supply VDD, and a grounding pin of the single-chip microcomputer U1 is grounded. The GPIO interface of the single-chip microcomputer U1 is connected with a pin 1 of the host interface J1 and communicates with the vaginal electrode through a single signal bus, a pin 2 of the host interface is grounded with the vaginal electrode through a ground wire, and different functions of the vaginal electrode are realized by changing a configuration mode of the GPIO interface in the single-chip microcomputer U1.

[0008] In the technical solution, the host interface J1 is connected with the GPIO interface of the single-chip microcomputer U1, as a signal transmission channel of the single signal bus, is responsible for transmitting various signals generated by the single-chip microcomputer U1 to the vaginal electrode, simultaneously receives response signals from the vaginal electrode, realizes information interaction between the host and the vaginal electrode, and realizes plug detection, read-write communication and abnormal processing functions of the vaginal electrode by changing the configuration mode of the GPIO interface in the host.

[0009] The vaginal electrode comprises a chip U2, a pull-down resistor R2, an electrode interface J2, a collection / electric stimulation electrode sheet 1, a collection / electric stimulation electrode sheet 2 and a collection reference electrode sheet; a grounding pin of the chip U2 is grounded, a pin DQ of the chip U2 is connected with a pin 1 of the electrode interface J2 and communicates with the host through the single signal bus, a pin 2 of the electrode interface J2 is grounded with the host through a ground wire; the DQ pin of the chip is connected with one end of the pull-down resistor R2, the other end of the pull-down resistor R2 is grounded, the collection / electric stimulation electrode sheet 1 and the collection / electric stimulation electrode sheet 2 are respectively connected with a pin 3 and a pin 4 of the electrode interface J2, and the collection reference electrode sheet is connected with a pin 5 of the electrode interface J2.

[0010] In the technical solution, the chip U2 is taken as a core control and processing unit of the vaginal electrode, is connected with the single signal bus through the pin DQ, receives control instructions from the host and feeds back state information of itself to the host; the grounding pin ensures normal work of the chip and avoids damage caused by static electricity accumulation or voltage fluctuation; the pull-down resistor R2 cooperates with the pull-up resistor R1 to ensure stability of signals during plug detection and single signal bus communication and prevent communication errors caused by signal jitter or uncertain level.

[0011] The acquisition / electric stimulation electrode sheet 1 and the acquisition / electric stimulation electrode sheet 2 serve as output terminals of the electric stimulation signal, when the pelvic floor muscles are treated by electric stimulation, the chip U2 generates a corresponding electric stimulation signal, and the electric stimulation signal is applied to the corresponding muscle tissue of the human body through the acquisition / electric stimulation electrode sheet 1 and the acquisition / electric stimulation electrode sheet 2; at the same time, the acquisition / electric stimulation electrode sheet 1 and the acquisition / electric stimulation electrode sheet 2 are connected with the electrode interface J2 for collecting the electromyographic signal of the human body and transmitting the electromyographic signal to the chip U2; and the reference electrode sheet provides a reference potential for the acquisition of the electromyographic signal.

[0012] In the above technical solution, the acquisition / electric stimulation electrode sheet 1 and the acquisition / electric stimulation electrode sheet 2 can simultaneously realize the functions of electromyographic signal acquisition and electric stimulation, by placing the two electrode sheets at different positions, the pelvic floor muscles in different regions can be subjected to targeted electric stimulation and signal acquisition, so that the muscle function can be comprehensively evaluated and effectively treated; the acquisition reference electrode sheet provides a stable reference potential for the acquired electromyographic signal, avoids the influence of factors such as human body movement, environmental electromagnetic interference, etc. on the signal, improves the accuracy of the collected signal, and provides a reliable data basis for subsequent analysis and treatment.

[0013] The configuration mode of the GPIO interface in the single-chip microcomputer U1 is changed to realize different functions of the vaginal electrode, wherein when the GPIO port of the host single-chip microcomputer U1 is configured in an ADC detection mode, the plug detection function can be realized; when the GPIO port of the host single-chip microcomputer U1 is configured in an input / output (I / O) mode, the read-write communication function of the vaginal electrode can be realized; when the host single-chip microcomputer U1 judges that the vaginal electrode has been connected and the read-write communication function is performed, if the read-write communication function fails, the abnormal processing function of the vaginal electrode is executed, the host single-chip microcomputer U1 performs delay processing on the GPIO interface, configures the GPIO interface in an input pull-down mode, and simultaneously cuts off the VDD power supply, finally the host single-chip microcomputer U1 configures the GPIO in an input / output (I / O) mode, and reinitializes the communication, read-write operation of the chip U2 in the vaginal electrode.

[0014] In the above technical solution, in the plug detection, the pull-up resistor R1 and the pull-down resistor R2 constitute a voltage division network, which can accurately reflect the plug state of the vaginal electrode; for the read-write communication function, when the GPIO interface is configured as an I / O mode, the single-chip microcomputer U1 can encode data according to a pre-set communication protocol and send the data to the chip U2, and also can decode data from the chip U2, realizing bidirectional transmission of data; in the abnormality processing function, the delay processing step provides a certain time buffer for the system, avoiding misjudgment of abnormality due to instantaneous fluctuation; configuring the GPIO interface as an input pull-down mode and cutting off the VDD power supply can effectively reset the chip U2, and after reconfiguring as an I / O mode, communication initialization and read-write operation are performed again, which can make the system recover from the abnormal state to normal state, improve the self-repairing ability and reliability of the system, and ensure the stability and durability of the equipment in the long-term use.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] The circuit can reduce the number of plug-in interface pins between the host and the vaginal electrode to the greatest extent, realizes non-communication detection, communication initialization, read / write operation, power-off reset and abnormality processing of the host to the vaginal electrode by using only two pins, simplifies the hardware design and reduces the cost, ensures the core functions such as electromyographic acquisition, and makes the functions of the equipment accurate and stable. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the utility model, and constitute a part of the specification, are used to explain the utility model together with embodiments of the utility model, and do not constitute the limitation to the utility model.

[0018] Figure 1 It is a circuit system block diagram of a single signal bus vaginal electrode control circuit;

[0019] Figure 2 It is a vaginal electrode plug detection simplified circuit diagram of a single signal bus vaginal electrode control circuit;

[0020] Figure 3 It is a vaginal electrode read-write communication simplified circuit diagram of a single signal bus vaginal electrode control circuit;

[0021] Figure 4 It is a single signal bus communication timing diagram of a single signal bus vaginal electrode control circuit. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0023] Please refer to Figures 1-4 The utility model provides technical scheme: a single signal bus vaginal electrode control circuit, the control circuit includes host computer and vaginal electrode, host computer and vaginal electrode are connected through a single signal bus and a ground wire, host computer controls vaginal electrode through single signal bus, thereby realizing vaginal electrode's plug -in detection, read -write communication and exception handling function.

[0024] In the above technical scheme, the single signal bus is the main channel for data exchange and control operation between the host computer and the vaginal electrode, and the single chip microcomputer U1 of the host computer and the chip U2 of the vaginal electrode realize information interaction through the single signal bus; the ground wire provides a unified zero potential reference point for the whole circuit, and the voltage measurement and logic level judgment of the single chip microcomputer U1 of the host computer and the chip U2 of the vaginal electrode are all referenced to the ground wire; during the single signal bus communication process, the ground wire is part of the signal loop, and provides a complete loop for signal transmission.

[0025] The host computer includes a single chip microcomputer U1, a power supply VDD, a pull-up resistor R1 and a host computer interface J1; the GPIO interface of the single chip microcomputer U1 is connected with one end of the pull-up resistor R1, the other end of the pull-up resistor R1 is connected with the power supply VDD, and the grounding pin of the single chip microcomputer U1 is grounded. The GPIO interface of the single chip microcomputer U1 is connected with the pin 1 of the host computer interface J1, and communicates with the vaginal electrode through the single signal bus; the pin 2 of the host computer interface is connected with the vaginal electrode through the ground wire, and different functions of the vaginal electrode are realized by changing the configuration mode of the GPIO interface in the single chip microcomputer U1.

[0026] In the above technical scheme, the host computer interface J1 is connected with the GPIO interface of the single chip microcomputer U1, as the signal transmission channel of the single signal bus, is responsible for transmitting various signals generated by the single chip microcomputer U1 to the vaginal electrode, and simultaneously receives response signals from the vaginal electrode, realizes information interaction between the host computer and the vaginal electrode, and realizes plug-in detection, read-write communication and exception handling function of the vaginal electrode by changing the configuration mode of the GPIO interface in the host computer.

[0027] The vaginal electrode comprises a chip U2, a pull-down resistor R2, an electrode interface J2, a collection / electric stimulation electrode piece 1, a collection / electric stimulation electrode piece 2, and a collection reference electrode piece; a ground pin of the chip U2 is grounded, a pin DQ of the chip U2 is connected with a pin 1 of the electrode interface J2 and communicates with a host through a single signal bus, a pin 2 of the electrode interface J2 is grounded with the host through a ground wire; the DQ pin of the chip is connected with one end of the pull-down resistor R2, the other end of the pull-down resistor R2 is grounded, the collection / electric stimulation electrode piece 1 and the collection / electric stimulation electrode piece 2 are respectively connected with a pin 3 and a pin 4 of the electrode interface J2, and the collection reference electrode piece is connected with a pin 5 of the electrode interface J2.

[0028] In the above technical solution, the chip U2 serves as a core control and processing unit of the vaginal electrode, is connected with the single signal bus through the pin DQ, receives control instructions from the host, and feeds back state information of the chip to the host; the ground pin ensures normal operation of the chip and avoids damage caused by static electricity accumulation or voltage fluctuation; the pull-down resistor R2 cooperates with the pull-up resistor R1 to ensure signal stability during plug detection and single signal bus communication, and prevent communication errors caused by signal jitter or uncertain level.

[0029] The collection / electric stimulation electrode piece 1 and the collection / electric stimulation electrode piece 2 serve as output ends of the electric stimulation signal, when the pelvic floor muscles are treated by electric stimulation, the chip U2 generates corresponding electric stimulation signals, which are applied to corresponding muscle tissues of the human body through the collection / electric stimulation electrode piece 1 and the collection / electric stimulation electrode piece 2; meanwhile, the collection / electric stimulation electrode piece 1 and the collection / electric stimulation electrode piece 2 are connected with the electrode interface J2 for collecting myoelectric signals of the human body and transmitting the myoelectric signals to the chip U2; the reference electrode piece provides a reference potential for collection of the myoelectric signals.

[0030] In the above technical solution, the collection / electric stimulation electrode piece 1 and the collection / electric stimulation electrode piece 2 can simultaneously realize collection of the myoelectric signals and electric stimulation function, by placing the two electrode pieces at different positions, the pelvic floor muscles in different regions can be subjected to targeted electric stimulation and signal collection, so that the muscle function can be comprehensively evaluated and effectively treated; the collection reference electrode piece provides a stable reference potential for the collected myoelectric signals, avoids influences of human body movement, environmental electromagnetic interference and other factors on the signals, improves the precision of the collected signals, and provides a reliable data basis for subsequent analysis and treatment.

[0031] The configuration mode of the GPIO interface in the single-chip microcomputer U1 is changed to realize different functions of the vaginal electrode, wherein when the GPIO port of the host single-chip microcomputer U1 is configured as an ADC detection mode, the plug-in detection function can be realized; when the GPIO port of the host single-chip microcomputer U1 is configured as an input / output (I / O) mode, the read-write communication function of the vaginal electrode can be realized; when the host single-chip microcomputer U1 judges that the vaginal electrode has been connected and the read-write communication function is performed, if the read-write communication function fails, the abnormal processing function of the vaginal electrode is performed, the host single-chip microcomputer U1 performs delay processing on the GPIO interface, configures the GPIO interface as an input pull-down mode, and simultaneously cuts off the VDD power supply, and finally the host single-chip microcomputer U1 configures the GPIO as an input / output (I / O) mode, and reinitializes the communication, read-write operation of the chip U2 in the vaginal electrode.

[0032] In the above technical solution, in the plug-in detection, the pull-up resistor R1 and the pull-down resistor R2 constitute a voltage division network, which can accurately reflect the plug-in state of the vaginal electrode; for the read-write communication function, when the GPIO interface is configured as an I / O mode, the single-chip microcomputer U1 can encode data according to a preset communication protocol and send the data to the chip U2, and also can decode data from the chip U2, to realize bidirectional transmission of data; in the abnormal processing function, the delay processing step provides a certain time buffer for the system, avoiding misjudgment of the abnormality due to instantaneous fluctuation; configuring the GPIO interface as an input pull-down mode and cutting off the VDD power supply can effectively reset the chip U2, and after being reconfigured as an I / O mode, the communication initialization and read-write operation are performed again, which can make the system recover from the abnormal state to normal state, improve the self-repairing ability and reliability of the system, and ensure the stability and durability of the equipment in the long-term use.

[0033] The working principle of the utility model:

[0034] 1) the plug-in detection function of the vaginal electrode, the GPIO interface of the host single-chip microcomputer U1 is configured as an ADC detection mode, wherein the host single-chip microcomputer can be a micro control unit (MCU), a Bluetooth single-chip microcomputer, a system on chip (SOC), a central processing unit (CPU) and the like; when the host and the vaginal electrode are not connected, as shown on the left side, when ADC detection is performed, the voltage value V1 measured is pulled up to the voltage value corresponding to the power supply VDD by the pull-up resistor R1, at this time, due to the action of the pull-up resistor R1, the value of V1 is equal to the voltage value of the power supply VDD, that is, V1=VDD; when the host and the vaginal electrode are connected to an integral through the host interface J1 and the electrode interface J2, as shown on the right side, when ADC detection is performed, the voltage value V2 measured is pulled down to the voltage value corresponding to the power supply VDD by the pull-down resistor R2, at this time, due to the action of the pull-down resistor R2, the value of V2 is equal to the voltage value of the power supply VDD, that is, V2=VDD. Figure 2 Figure 2 ​The right side shows that the voltage value V2 detected by the ADC is the voltage value of the pull-down resistor R2 of the vaginal electrode and the pull-up resistor R1 of the host, at this time V2=R2 / (R1+R2)*VDD; the plug-in detection voltage threshold V3 of the vaginal electrode is the average value of V1 and V2: V3=(V1+V2) / 2, considering that the accuracy of the device may not be completely consistent in actual application, therefore, test multiple groups of V3 data first and then take the average value to get the final plug-in detection voltage threshold V3 of the vaginal electrode; when the ADC detection value of the single-chip microcomputer U1 is greater than V3, it is detected that the vaginal electrode is pulled out; when the ADC detection value of the single-chip microcomputer U1 is less than V3, it is detected that the vaginal electrode is inserted; the above-mentioned functions can enable the host to detect the plug-in state of the vaginal electrode at any time, and the single-chip microcomputer external, especially the interface, electrode line, vaginal electrode and other application parts have no communication data transmission, and will not produce electromagnetic interference, which will not affect the product collection function;

[0035] 2) The read-write communication function of the vaginal electrode, as shown in Figure 3 After the host is connected with the vaginal electrode, the host single-chip microcomputer U1 will perform read-write communication on the chip U2 in the vaginal electrode through the single signal bus, at this time the GPIO port of the host single-chip microcomputer U1 is configured as an input / output (I / O) mode, and the data input / output pin (DQ) of the chip U2 in the vaginal electrode is in an open-drain state, wherein the chip U2 can be a single bus non-volatile memory (EERPOM, EPROM, Flash), a single bus encryption chip, etc.; when the single signal bus is in a high level state, the VDD power supply supplies power to the chip U2 in the vaginal electrode through the pull-up resistor R1, and charges the parasitic capacitor in the chip U2 at the same time; when the single signal bus is in a low level state, the parasitic capacitor in the chip U2 will be discharged to ensure stable power supply of the chip U2;

[0036] The chip U2 in the vaginal electrode complies with the single signal bus protocol and defines the following signal types: reset pulse, presence pulse, write 0, write 1, read 0, and read 1, wherein the presence pulse signal is emitted by the chip U2 in the vaginal electrode, and the other signals are emitted by the host single-chip microcomputer U1, and the specific timing control is as shown in Figure 4The shown: first is initialization, t1 time within the single-chip microcomputer U1 sends reset pulse, then wait t2 time, t3 time within the chip U2 sends the existence pulse, initialization is completed; Write timing t4 time output low, it is preparation time, t5 time within the single-chip microcomputer U1 sends 0 or 1, and the chip U2 completes sampling, writes 0 or 1, t6 is the recovery time; Read timing t4 time output low, it is preparation time, t5 time within the chip U2 sends 0 or 1, and the single-chip microcomputer U1 completes sampling, reads 0 or 1, t6 is the recovery time; The above-mentioned operation of the circuit can make the host single-chip microcomputer U1 and the chip U2 in the vaginal electrode complete data interaction through a single signal bus, read the model, serial number, use time length and other information in the vaginal electrode chip U2, also can write user information, use record etc. to the vaginal electrode chip U2, also can use the encryption algorithm of the chip U2 to realize the protective application;

[0037] 3) Abnormal processing function of the vaginal electrode, the host and the vaginal electrode are connected through the host interface J1 and the electrode interface J2, and various abnormalities such as fast, slow and unbalanced may occur during the connection process, which may cause the power-on and initialization of the chip U2 in the vaginal electrode to be disturbed, leading to a small probability of communication error between the host and the vaginal electrode, therefore, the abnormal processing function of the vaginal electrode is added to the circuit:

[0038] Firstly, the plug-in detection function is used, the host single-chip microcomputer U1 first judges whether the vaginal electrode is connected, and the chip U2 in the vaginal electrode is automatically powered on synchronously; After detecting that the vaginal electrode is connected, the host single-chip microcomputer U1 delays the GPIO interface, then uses the read-write communication function to read and identify the serial number of the chip U2 in the vaginal electrode, the serial number reading action is repeated for multiple times, and verification and comparison are carried out, if the comparison is consistent, it is normal to use, if the comparison is inconsistent, it is judged that the reading fails; After the reading fails, the host single-chip microcomputer U1 configures the GPIO interface as input pull-down mode, sets the single signal bus to low level, empties the internal capacitor of the vaginal electrode chip U2, and also cuts off the power supply VDD, so as to realize the power-off reset of the chip U2 in the vaginal electrode; Finally, the host single-chip microcomputer U1 configures the GPIO interface as input / output (I / O) mode, and reinitializes, reads and writes the chip U2 in the vaginal electrode, because the vaginal electrode has been inserted at this time, there is no disturbance introduced by the insertion process, and the communication can be stable and accurate.

[0039] It should be noted that the relational terms herein, such as first and second, and the like, are used solely to distinguish one from another entity or action without necessarily requiring or implying any actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0040] Finally, it should be noted that the above-described embodiments are merely possible embodiments of the present application, and thus are not used to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, the technical solutions recorded in the foregoing embodiments can still be modified or equivalent replaced by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A single signal bus vaginal electrode control circuit, characterized by: The control circuit comprises a host and a vaginal electrode, and the host and the vaginal electrode are connected through a single signal bus and a ground wire.

2. A single bus vaginal electrode control circuit according to claim 1, wherein: The host comprises a single-chip microcomputer U1, a power supply VDD, a pull-up resistor R1 and a host interface J1; a GPIO interface of the single-chip microcomputer U1 is connected with one end of the pull-up resistor R1, the other end of the pull-up resistor R1 is connected with the power supply VDD, and a grounding pin of the single-chip microcomputer U1 is grounded.

3. A single bus vaginal electrode control circuit according to claim 2, wherein: The GPIO interface of the single-chip microcomputer U1 is connected with a pin 1 of the host interface J1 and communicates with the vaginal electrode through a single signal bus, and a pin 2 of the host interface is grounded with the vaginal electrode through a ground wire, and different functions of the vaginal electrode are realized by changing a configuration mode of the GPIO interface in the single-chip microcomputer U1.

4. A single bus vaginal electrode control circuit according to claim 1, wherein: The vaginal electrode comprises a chip U2, a pull-down resistor R2, an electrode interface J2, a collection / electric stimulation electrode sheet 1, a collection / electric stimulation electrode sheet 2 and a collection reference electrode sheet; a grounding pin of the chip U2 is grounded, a pin DQ of the chip U2 is connected with a pin 1 of the electrode interface J2 and communicates with the host through a single signal bus, and a pin 2 of the electrode interface J2 is grounded with the host through a ground wire; the pin DQ of the chip is connected with one end of the pull-down resistor R2, the other end of the pull-down resistor R2 is grounded, the collection / electric stimulation electrode sheet 1 and the collection / electric stimulation electrode sheet 2 are respectively connected with a pin 3 and a pin 4 of the electrode interface J2, and the collection reference electrode sheet is connected with a pin 5 of the electrode interface J2.

5. A single bus vaginal electrode control circuit according to claim 4, wherein: The collection / electric stimulation electrode sheet 1 and the collection / electric stimulation electrode sheet 2 serve as output ends of electric stimulation signals, when the pelvic floor muscles are treated by electric stimulation, the chip U2 generates corresponding electric stimulation signals, the electric stimulation signals are applied to corresponding muscle tissues of the human body through the collection / electric stimulation electrode sheet 1 and the collection / electric stimulation electrode sheet 2, meanwhile, the collection / electric stimulation electrode sheet 1 and the collection / electric stimulation electrode sheet 2 are connected with the electrode interface J2 for collecting the electromyographic signals of the human body and transmitting the electromyographic signals to the chip U2, and the reference electrode sheet provides a reference potential for the collection of the electromyographic signals.

6. A single bus vaginal electrode control circuit according to claim 3, wherein: The configuration mode of the GPIO interface in the single-chip microcomputer U1 is changed to realize different functions of the vaginal electrode, when the GPIO port of the host single-chip microcomputer U1 is configured as an ADC detection mode, the plug-in detection function can be realized, when the GPIO port of the host single-chip microcomputer U1 is configured as an input / output (I / O) mode, the read / write communication function of the vaginal electrode can be realized, when the host single-chip microcomputer U1 judges that the vaginal electrode has been connected and the read / write communication function is performed, if the read / write communication function fails, the abnormal processing function of the vaginal electrode is executed, the host single-chip microcomputer U1 performs a delay processing on the GPIO interface, configures the GPIO interface as an input pull-down mode, cuts off the power supply VDD, finally, the host single-chip microcomputer U1 configures the GPIO as an input / output (I / O) mode, and reinitializes the communication, read / write operation of the chip U2 in the vaginal electrode.

Images