CN219089276U - Health feedback acquisition circuit and health feedback acquisition terminal - Google Patents
Health feedback acquisition circuit and health feedback acquisition terminal Download PDFInfo
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- CN219089276U CN219089276U CN202222392922.4U CN202222392922U CN219089276U CN 219089276 U CN219089276 U CN 219089276U CN 202222392922 U CN202222392922 U CN 202222392922U CN 219089276 U CN219089276 U CN 219089276U
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Abstract
The utility model relates to the field of medical equipment, and discloses a health feedback acquisition circuit and a health feedback acquisition terminal, wherein the health feedback acquisition circuit comprises an analog-to-digital converter, a processor and acquisition equipment; the data reading bit number of the analog-to-digital converter is higher than the data reading bit number of the processor; the acquisition equipment is used for acquiring state information; the state information includes an electromyographic signal, a heart rate signal and an electrical quantity signal; the processor is connected with the acquisition equipment through the analog-to-digital converter, and receives the state information sent by the acquisition equipment through the analog-to-digital converter so as to evaluate the health state of the user. Compared with the prior art, the health state of the user cannot be reflected more accurately due to the limitation of the data acquisition precision of the processor. By adopting the technical scheme, the processor is connected with the acquisition equipment through the analog-digital converter with higher data acquisition precision, and the analog-digital converter can provide higher-precision data reading, so that the processor can evaluate the health state of a user more accurately according to the read data.
Description
Technical Field
The utility model relates to the field of medical equipment, in particular to a health feedback acquisition circuit and a health feedback acquisition terminal.
Background
Along with the development of scientific technology at present, the ZigBee networking technology is widely applied to the fields of intelligent households, intelligent power grids, intelligent medical treatment and the like, the ZigBee networking is utilized on the market to realize the function of wireless data transmission, and at present, for some equipment with the functions of wireless networking, heart rate acquisition, myoelectricity acquisition, LED prompting, key detection and data processing, the MCU+ZigBee networking module or ZigBee networking chip combination scheme is used to realize the function.
This solution, while functionally enabling data acquisition of the device, is lacking from a resource utilization and cost point of view. In the prior art, when data acquisition is performed, a processor formed by an MCU and a ZigBee networking module is directly connected with acquisition equipment to perform data acquisition, but is limited by the processor, and the processor can only provide data acquisition with a certain number, so that the acquired data precision is limited.
It can be seen how to increase the number of bits of the processor data acquisition, and providing higher accuracy data acquisition is a problem to be solved by those skilled in the art.
Disclosure of Invention
The utility model aims to provide a health feedback acquisition circuit and a health feedback acquisition terminal, which are used for improving the number of bits of data acquisition of a processor and providing higher-precision data acquisition when data acquisition is carried out.
In order to solve the above technical problems, the present utility model provides a health feedback acquisition circuit, including:
analog-to-digital converter, processor, acquisition device; the data reading bit number of the analog-to-digital converter is higher than the data reading bit number of the processor;
the acquisition equipment is used for acquiring state information; the state information comprises an electromyographic signal, a heart rate signal and an electric quantity signal;
the processor is connected with the acquisition equipment through the analog-to-digital converter, and receives the state information sent by the acquisition equipment through the analog-to-digital converter so as to evaluate the health state of the user.
Preferably, the processor is a CC2530 single-chip microcomputer, and the analog-to-digital converter is an ADS8331.
Preferably, the method further comprises: a state evaluation display circuit;
the state evaluation display circuit is connected with the processor and used for displaying the result of the processor evaluating the health state of the user.
Preferably, the state evaluation display circuit includes:
the RGB indicator lamp comprises a RGB indicator lamp, a first resistor, a second resistor and a third resistor;
the first end, the second end and the third end of the RGB indicator lamp are respectively connected with the processor through the first resistor, the second resistor and the third resistor, and the fourth end is connected with a power supply.
Preferably, the method further comprises: a switch control circuit;
the switch control circuit is connected with the processor, and the processor controls the on-off of the RGB indicator lamp according to the signal of the switch control circuit so as to indicate the power-on state of the health feedback acquisition circuit.
Preferably, the switch control circuit includes: the voltage regulator comprises a voltage regulator tube, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a first diode, a second diode, a triode, a field effect tube and a switch key;
the fourth resistor, the fifth resistor, the first end of the sixth resistor and the source electrode of the field effect transistor are commonly connected with a first power supply, the second end of the fourth resistor and the second end of the fifth resistor are connected with the cathode of the voltage stabilizing tube, the IO input end of the processor and the anode of the first diode, the anode of the voltage stabilizing tube is grounded, the second end of the sixth resistor and the grid electrode of the field effect transistor are connected with the anode of the second diode and the collector of the triode, the cathode of the first diode and the cathode of the second diode are grounded through the switch according to a key, the base electrode of the triode is connected with the first end of the seventh resistor and the first end of the eighth resistor, the second end of the seventh resistor and the emitter of the triode are commonly grounded, the second end of the eighth resistor is connected with the IO output end of the processor, and the drain electrode of the field effect transistor is connected with a second power supply.
Preferably, the method further comprises: a first capacitor, a second capacitor, a third capacitor, and a fourth capacitor;
the first power supply is grounded through the first capacitor;
the second power supply is connected with the second capacitor, the third capacitor and the fourth capacitor through the second capacitor and the third capacitor.
Preferably, the method further comprises:
an alarm device;
the alarm device is connected with the processor to send out an alarm signal when the electric quantity signal is lower than a threshold value.
Preferably, the state evaluation display circuit is a display.
In order to solve the technical problems, the utility model also provides a health feedback acquisition terminal which comprises the health feedback acquisition circuit.
The health feedback acquisition circuit provided by the utility model comprises an analog-to-digital converter, a processor and acquisition equipment; the data reading bit number of the analog-to-digital converter is higher than the data reading bit number of the processor; the acquisition equipment is used for acquiring state information; the state information includes an electromyographic signal, a heart rate signal and an electrical quantity signal; the processor is connected with the acquisition equipment through the analog-to-digital converter, and receives the state information sent by the acquisition equipment through the analog-to-digital converter so as to evaluate the health state of the user. Compared with the prior art, the method is limited by the data acquisition precision of the processor, and the processor is directly connected with the acquisition equipment to acquire user state information with certain precision only, so that the health state of the user cannot be reflected more accurately. By adopting the technical scheme, the processor is connected with the acquisition equipment through the analog-digital converter with higher data acquisition precision, and the analog-digital converter can provide higher-precision data reading, so that the processor can evaluate the health state of a user more accurately according to the read data.
In addition, the health feedback acquisition terminal provided by the utility model comprises the health feedback acquisition circuit, and the effects are the same as the above.
Drawings
For a clearer description of embodiments of the present utility model, the drawings that are required to be used in the embodiments will be briefly described, it being apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the drawings without inventive effort for those skilled in the art.
FIG. 1 is a block diagram of a health feedback acquisition circuit according to an embodiment of the present utility model;
FIG. 2 is a circuit diagram of a state evaluation display circuit according to an embodiment of the present utility model;
fig. 3 is a circuit diagram of a switch control circuit according to an embodiment of the present utility model;
the reference numerals are as follows: 1 is a processor, 2 is an analog-to-digital converter, and 3 is acquisition equipment.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by a person of ordinary skill in the art without making any inventive effort are within the scope of the present utility model.
ZigBee, also called Zigbee, is a wireless network protocol for low-speed short-distance transmission, and the bottom layer adopts a media access layer and a physical layer which are specified by IEEE 802.15.4 standard. ZigBee is a novel wireless communication technology, and is suitable for a series of electronic component devices with short transmission range and low data transmission rate. The main characteristics are low speed, low power consumption, low cost, support of a large number of network nodes, support of various network topologies, low complexity, rapidness, reliability and safety.
Along with the development of scientific technology at present, the ZigBee networking technology is widely applied to the fields of intelligent households, intelligent power grids, intelligent medical treatment and the like, the ZigBee networking is utilized on the market to realize the function of wireless data transmission, and at present, for some equipment with the functions of wireless networking, heart rate acquisition, myoelectricity acquisition, LED prompting, key detection and data processing, the MCU+ZigBee networking module or ZigBee networking chip combination scheme is used to realize the function.
This solution, while functionally enabling data acquisition of the device, is lacking from a resource utilization and cost point of view. In the prior art, when data acquisition is performed, a processor formed by an MCU and a ZigBee networking module is directly connected with acquisition equipment to perform data acquisition, but is limited by the processor, and the processor can only provide data acquisition with a certain number, so that the acquired data precision is limited.
It can be seen how to increase the number of bits of the processor data acquisition, and providing higher accuracy data acquisition is a problem to be solved by those skilled in the art.
The utility model provides a health feedback acquisition circuit and a health feedback acquisition terminal, which are used for improving the number of bits of data acquisition of a processor and providing higher-precision data acquisition when data acquisition is performed.
In order to better understand the aspects of the present utility model, the present utility model will be described in further detail with reference to the accompanying drawings and detailed description.
Fig. 1 is a block diagram of a health feedback acquisition circuit according to an embodiment of the present utility model, as shown in fig. 1, where the circuit includes:
an analog-to-digital converter 2, a processor 1, and an acquisition device 3; the number of data reading bits of the analog-to-digital converter 2 is higher than that of the processor 1;
the acquisition equipment 3 is used for acquiring state information; the state information includes an electromyographic signal, a heart rate signal and an electrical quantity signal;
the processor 1 is connected with the acquisition device 3 through the analog-to-digital converter 2, and receives the state information sent by the acquisition device 3 through the analog-to-digital converter 2 to evaluate the health state of the user.
CC2530 is a real System-on-a-Chip (SoC) solution for 2.4-GHz IEEE 802.15.4, zigBee and RF4CE applications. The method can establish a powerful network node with very low total material cost, and a CC2530 singlechip is often used for data acquisition in the prior art. However, the analog-to-digital conversion acquisition precision of the self ADC of the CC2530 single-chip microcomputer is up to 12 bits, and the CC2530 single-chip microcomputer cannot provide more accurate data when acquiring data.
Thus, the analog-to-digital converter 2 of the present embodiment uses ADS8331, where ADS8331 is a low power consumption, 16 bit, 500k Samples Per Second (SPS) analog-to-digital converter (ADC) with a single polarity, 4-to-1 multiplexer (mux) input. The device comprises a capacitor-based 16-bit Successive Approximation Register (SAR) ADC with an inherent sample and hold function. Therefore, the function of acquiring data with higher precision in real time can be realized by utilizing the CC2530 singlechip to drive the 16-bit 500kSPS analog-to-digital converter-ADS 8331.
In practice, the prior art can only achieve baud rates up to 230400; since ADS8331 is a 16-bit 500kSPS analog to digital converter (ADC), a higher baud rate is required to accurately achieve acquisition; therefore, the function of driving an ADS8331 16-bit ADC acquisition chip by the CC2530 singlechip spi is realized by configuring a related register, and particularly, the proper baud rate is calculated through the following formula;
in addition, because the CC2530 singlechip is an 8-bit singlechip with a 51 kernel, only 8-bit data can be read and written each time, but the ADS8331 is a 16-bit AD acquisition chip, therefore, in the utility model, the high eight bits are written firstly and are waited for finishing the data transceiving through writing the data each time and continuously, the high 8-bit data is read and waited for finishing the data transceiving, the low eight bits of data is written again and waited for finishing the data transceiving, and the low eight bits of data is read and waited for finishing the data transceiving. Through the mode of continuous reading and writing twice, the function that the CC2530 singlechip can read and write 16-bit data normally is realized by observing the waveform sampled by the oscilloscope to be normal.
The acquisition device 3 is used for acquiring state information in this embodiment, where the state information includes an electromyographic signal, a heart rate signal and an electrical quantity signal. The electromyographic signals and the heart rate signals are important information for evaluating the health state of the human body, and the electric quantity signals are electric quantity information representing a battery for providing a power supply in the health feedback acquisition circuit. The state of charge of the battery is evaluated by sampling the voltage of the battery. In this embodiment, specifically, a global array with a size of 10 and a data type of uint16 is defined, 10 pieces of 16-bit data are required to be acquired when each time of data reading, the acquired data are sequentially placed in the global array with the size of 10 and the data type of uint16, after the data are full, an average value of the data is calculated, the average value is an effective acquisition value, and the global array is emptied for later acquisition; and converting the obtained effective value into a sampling voltage by using the following formula to obtain a final sampling voltage:
the health feedback acquisition circuit provided by the utility model comprises an analog-to-digital converter, a processor and acquisition equipment; the data reading bit number of the analog-to-digital converter is higher than the data reading bit number of the processor; the acquisition equipment is used for acquiring state information; the state information includes an electromyographic signal, a heart rate signal and an electrical quantity signal; the processor is connected with the acquisition equipment through the analog-to-digital converter, and receives the state information sent by the acquisition equipment through the analog-to-digital converter so as to evaluate the health state of the user. Compared with the prior art, the method is limited by the data acquisition precision of the processor, and the processor is directly connected with the acquisition equipment to acquire user state information with certain precision only, so that the health state of the user cannot be reflected more accurately. By adopting the technical scheme, the processor is connected with the acquisition equipment through the analog-digital converter with higher data acquisition precision, and the analog-digital converter can provide higher-precision data reading, so that the processor can evaluate the health state of a user more accurately according to the read data.
In a specific implementation, the processor 1 comprehensively evaluates the health status of the user according to the information acquired by the acquisition device 3, so as to more conveniently display the evaluation result, and in this embodiment, the health feedback acquisition circuit further includes: a state evaluation display circuit;
the state evaluation display circuit is connected with the processor 1 and is used for displaying the result of the evaluation of the health state of the user by the processor 1.
The embodiment also provides a specific state evaluation display circuit, and fig. 2 is a circuit diagram of the state evaluation display circuit provided in the embodiment of the present utility model, as shown in fig. 2, where the circuit includes:
the LED is an RGB indicator lamp, and comprises a first resistor R1, a second resistor R2 and a third resistor R3;
the first end, the second end and the third end of the RGB indicator light LED are respectively connected with the processor 1 through the first resistor R1, the second resistor R2 and the third resistor R3, and the fourth end is connected with a power supply.
RGB color mode (also referred to as "Red, green and Blue", which is less commonly used) is a color standard in industry, and is obtained by changing three color channels of Red (Red), green (Green) and Blue (Blue) and overlapping the three color channels with each other, and RGB is a color representing three channels of Red, green and Blue, and the standard almost comprises all colors perceived by human eyesight, and is one of the most widely used color systems.
In a specific implementation, different corresponding conditions may be set according to the result evaluated by the processor 1, so as to control the RGB indicator LEDs to display corresponding colors, so that a technician may confirm the health status of the user according to the colors of the RGB indicator LEDs. For example, in the present embodiment, the RGB indicator LEDs are three-color indicator lamps, which display three colors of red, green and blue, embody the evaluation result of the health status by the processor 1 in the form of numerical values (0-100), and are classified into three levels, that is, when detected (60-100), the RGB indicator LEDs are represented in green; the detected state is moderate (30-60), and the RGB indicator light LED is represented in blue; poor conditions (0-30) were detected and the RGB indicator LEDs were represented in red.
Therefore, the embodiment realizes the display of the health state of the user through the RGB indicator lamp. In other embodiments, the status assessment display circuit may also use a display to display directly, which may exhibit specific values.
In addition, the RGB indicator lamp can be used for displaying other information, for example, when the detection circuit is normally connected, the connection indicator device is displayed in green, the indicator lamp flashes at the frequency of 2 s/time of the timer, and when the treatment scheme starts to be entered, the normal working instruction display is executed according to the evaluation result, and the red, green and blue colors are displayed according to the health state of the person; when abnormal circuit connection or disconnection is detected, the indicator light is green and flashes, and the timer flashes the indicator light for 3 times/s until equipment connection is successful. So that the connection status of the circuit can be displayed to the technician.
On the basis of the above embodiment, in this embodiment, further includes: a switch control circuit;
the switch control circuit is connected with the processor 1, and the processor 1 controls the on-off of the RGB indicator light LEDs according to the signals of the switch control circuit so as to indicate the power-on state of the health feedback acquisition circuit.
Fig. 3 is a circuit diagram of a switch control circuit according to an embodiment of the present utility model, as shown in fig. 3, the circuit includes: the voltage stabilizing tube D3, the fourth resistor R4, the fifth resistor R5, the sixth resistor R6, the seventh resistor R7, the eighth resistor R8, the first diode D1, the second diode D2, the triode Q1, the field effect transistor MOS and the switch key K1;
the first ends of the fourth resistor R4, the fifth resistor R5 and the sixth resistor R6 and the source electrode of the field effect transistor MOS are commonly connected with the first power supply VBAT1, the second ends of the fourth resistor R4 and the fifth resistor R5 are connected with the cathode of the voltage stabilizing tube D3, the IO input end of the processor 1 and the anode of the first diode D1, the anode of the voltage stabilizing tube D3 is grounded, the second end of the sixth resistor R6 and the grid electrode of the field effect transistor MOS are connected with the anode of the second diode D2 and the collector of the triode Q1, the cathodes of the first diode D1 and the second diode D2 are grounded through the switch key K1, the base electrode of the triode Q1 is connected with the first end of the seventh resistor R7 and the first end of the eighth resistor R8, the second end of the seventh resistor R7 and the emitter of the triode Q1 are commonly grounded, the second end of the eighth resistor R8 is connected with the IO output end of the processor 1, and the drain electrode of the field effect transistor MOS is connected with the second power supply VBAT.
Furthermore, it may further include: a first capacitor C1, a second capacitor C2, a third capacitor C3, and a fourth capacitor C4;
the first power supply VBAT1 is grounded through a first capacitor C1;
the second power supply VBAT is grounded through the second capacitor C2, the third capacitor C3 and the fourth capacitor C4.
In this embodiment, control of the energized state of the circuit is achieved by the switch control circuit, and status display can be performed by the indicator lamp. For example, in this embodiment, when the device is in a power-off state, it is detected that the switch key K1 is pressed, and the timer starts to count, if the time is longer than 3S, the blue lamp is measured, the power-on event is prompted to trigger successfully, and after the key is released, the blue lamp of the device is turned off, and the device enters a power-on state. When the equipment is in a starting state, the fact that the switch key K1 is pressed is detected, the timer starts to count, if the time is longer than 3S, the indicator lamp blue lamp is lighted, the success of triggering of a shutdown event is prompted, the blue lamp is extinguished after the key is released, and the equipment enters a shutdown state. The field effect transistor MOS in this embodiment may be FDS4435.
The PAN ID is a personal area network address. The occurrence is typically accompanied by a determination of the channel. PAN ID, which is known as Personal Area Network ID, means the ID of the network (i.e. network identifier). Is a network for one or more applications, and is used for distinguishing different ZigBee networks, and is generally one of two topologies of mesh or cluster tree. The PAN IDs of all nodes are unique, one network has only one PAN ID, which is generated by the PAN coordinator, and the PAN ID is an optional configuration item for controlling the ZigBee router and the end node to join that network. A channel is a communication channel and is a medium for signal transmission.
In a specific implementation, the Zigbee network continuous press detection can be performed through the switch key K1, for example, when a key press is detected, a timer starts to count, when the first press time is less than 200ms, the interval between the key bounce after the first press and the second press time when the second press is detected to be less than 200ms is less than 200ms, the interval between the key bounce after the second press and the third press time is less than 200ms, and the condition that the third press time is less than 200ms is satisfied, the device enters a network default setting recovery state; the default PAN ID and the default channel are set in the equipment reading program and stored in the nonvolatile memory, so that the function of power-down storage setting is achieved.
In a specific implementation, in order to avoid that data cannot be acquired due to insufficient power supply, in this embodiment, the method further includes:
an alarm device;
the alarm device is connected to the processor 1 to emit an alarm signal when the power signal is below a threshold value.
The alarm device can timely give an alarm when the electric quantity of the power supply is insufficient, so that technicians are prompted to process the power supply to avoid interruption of service.
The utility model also provides a health feedback acquisition terminal which comprises the health feedback acquisition circuit.
The health feedback acquisition terminal provided by the utility model comprises a health feedback acquisition circuit, wherein the circuit comprises an analog-to-digital converter, a processor and acquisition equipment; the data reading bit number of the analog-to-digital converter is higher than the data reading bit number of the processor; the acquisition equipment is used for acquiring state information; the state information includes an electromyographic signal, a heart rate signal and an electrical quantity signal; the processor is connected with the acquisition equipment through the analog-to-digital converter, and receives the state information sent by the acquisition equipment through the analog-to-digital converter so as to evaluate the health state of the user. Compared with the prior art, the method is limited by the data acquisition precision of the processor, and the processor is directly connected with the acquisition equipment to acquire user state information with certain precision only, so that the health state of the user cannot be reflected more accurately. By adopting the technical scheme, the processor is connected with the acquisition equipment through the analog-digital converter with higher data acquisition precision, and the analog-digital converter can provide higher-precision data reading, so that the processor can evaluate the health state of a user more accurately according to the read data.
The health feedback acquisition circuit and the health feedback acquisition terminal provided by the utility model are described in detail. In the description, each embodiment is described in a progressive manner, and each embodiment is mainly described by the differences from other embodiments, so that the same similar parts among the embodiments are mutually referred. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.
It should also be noted that in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such 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 may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Claims (10)
1. A health feedback acquisition circuit, comprising:
analog-to-digital converter, processor, acquisition device; the data reading bit number of the analog-to-digital converter is higher than the data reading bit number of the processor;
the acquisition equipment is used for acquiring state information; the state information comprises an electromyographic signal, a heart rate signal and an electric quantity signal;
the processor is connected with the acquisition equipment through the analog-to-digital converter, and receives the state information sent by the acquisition equipment through the analog-to-digital converter so as to evaluate the health state of the user.
2. The health feedback acquisition circuit of claim 1, wherein the processor is a CC2530 single-chip microcomputer and the analog-to-digital converter is ADS8331.
3. The health feedback acquisition circuit of claim 2, further comprising: a state evaluation display circuit;
the state evaluation display circuit is connected with the processor and used for displaying the result of the processor evaluating the health state of the user.
4. The health feedback acquisition circuit of claim 3, wherein the state evaluation display circuit comprises:
the RGB indicator lamp comprises a RGB indicator lamp, a first resistor, a second resistor and a third resistor;
the first end, the second end and the third end of the RGB indicator lamp are respectively connected with the processor through the first resistor, the second resistor and the third resistor, and the fourth end is connected with a power supply.
5. The health feedback acquisition circuit of claim 4, further comprising: a switch control circuit;
the switch control circuit is connected with the processor, and the processor controls the on-off of the RGB indicator lamp according to the signal of the switch control circuit so as to indicate the power-on state of the health feedback acquisition circuit.
6. The health feedback acquisition circuit of claim 5, wherein the switch control circuit comprises: the voltage regulator comprises a voltage regulator tube, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a first diode, a second diode, a triode, a field effect tube and a switch key;
the fourth resistor, the fifth resistor, the first end of the sixth resistor and the source electrode of the field effect transistor are commonly connected with a first power supply, the second end of the fourth resistor and the second end of the fifth resistor are connected with the cathode of the voltage stabilizing tube, the IO input end of the processor and the anode of the first diode, the anode of the voltage stabilizing tube is grounded, the second end of the sixth resistor and the grid electrode of the field effect transistor are connected with the anode of the second diode and the collector of the triode, the cathode of the first diode and the cathode of the second diode are grounded through the switch according to a key, the base electrode of the triode is connected with the first end of the seventh resistor and the first end of the eighth resistor, the second end of the seventh resistor and the emitter of the triode are commonly grounded, the second end of the eighth resistor is connected with the IO output end of the processor, and the drain electrode of the field effect transistor is connected with a second power supply.
7. The health feedback acquisition circuit of claim 6, further comprising: a first capacitor, a second capacitor, a third capacitor, and a fourth capacitor;
the first power supply is grounded through the first capacitor;
the second power supply is connected with the second capacitor, the third capacitor and the fourth capacitor through the second capacitor and the third capacitor.
8. The health feedback acquisition circuit of claim 1, further comprising:
an alarm device;
the alarm device is connected with the processor to send out an alarm signal when the electric quantity signal is lower than a threshold value.
9. The health feedback acquisition circuit of claim 4, wherein the status assessment display circuit is a display.
10. A health feedback acquisition terminal comprising a health feedback acquisition circuit as claimed in any one of claims 1 to 9.
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| CN202222392922.4U CN219089276U (en) | 2022-09-08 | 2022-09-08 | Health feedback acquisition circuit and health feedback acquisition terminal |
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| CN202222392922.4U CN219089276U (en) | 2022-09-08 | 2022-09-08 | Health feedback acquisition circuit and health feedback acquisition terminal |
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