CN218675714U - Data acquisition circuit and system suitable for health risk assessment - Google Patents
Data acquisition circuit and system suitable for health risk assessment Download PDFInfo
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- CN218675714U CN218675714U CN202222506701.5U CN202222506701U CN218675714U CN 218675714 U CN218675714 U CN 218675714U CN 202222506701 U CN202222506701 U CN 202222506701U CN 218675714 U CN218675714 U CN 218675714U
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Abstract
The utility model provides a data acquisition circuit suitable for health risk assessment, include: each data acquisition sub-circuit is electrically connected with the corresponding monitoring electrode; the input end of the voltage stabilizing and boosting unit and the monitoring electrode are used for stabilizing the voltage output by the monitoring electrode; the input end of the voltage amplification unit is electrically connected with the output end of the voltage stabilization and boosting unit and is used for amplifying the voltage stabilized by the voltage stabilization and boosting unit; the input end of the controlled unit is electrically connected with the output end of the voltage amplifying unit, and the output end of the controlled unit is electrically connected with the communication interface and used for inputting the amplified voltage to the communication interface after receiving the switching signal; the signal receiving unit inputs a high-level starting signal to the delay unit, the delay unit delays the high-level starting signal for a preset time and then outputs the high-level starting signal to the joint control unit corresponding to each controlled unit, and the joint control unit controls the output end of each controlled unit to establish an electric connection state with the communication interface.
Description
Technical Field
The utility model relates to the technical field of circuits, especially, relate to a data acquisition circuit and system suitable for health risk assessment.
Background
The human body bioelectrical impedance measurement (BIA) is a detection technique for extracting biomedical information related to human body physiological and pathological conditions by using the electrical characteristics and change rule of human body tissues and organs. It usually sends a tiny AC measuring signal to the human body by means of an electrode system placed on the body surface, detects the corresponding electrical impedance and its change, and then obtains the relevant physiological and pathological information according to different application purposes. It has the advantages of no wound, no harm, low cost, simple operation, rich functional information, etc.
In an actual application scenario, during risk assessment, an edge data acquisition device is often required to acquire electrical information and data, and then the acquired electrical information and data are uploaded to a cloud for calculation to obtain a corresponding health risk assessment result.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a data acquisition circuit and system suitable for healthy risk assessment can combine analog circuit to ally oneself with the accuse between the data acquisition passageway, have with low costs, easily carry out advantages such as accuse of ally oneself with.
The utility model discloses a first aspect provides a data acquisition circuit suitable for health risk assessment, include:
the joint control circuit and the data acquisition sub-circuits are electrically connected with the corresponding monitoring electrodes;
the data acquisition sub-circuit comprises a voltage stabilizing and boosting unit, and the input end of the voltage stabilizing and boosting unit and the monitoring electrode are used for performing voltage stabilizing treatment on the voltage output by the monitoring electrode;
the data acquisition sub-circuit comprises a voltage amplification unit, wherein the input end of the voltage amplification unit is electrically connected with the output end of the voltage stabilization and boosting unit and is used for amplifying the voltage stabilized by the voltage stabilization and boosting unit;
the data acquisition sub-circuit comprises a controlled unit, the input end of the controlled unit is electrically connected with the output end of the voltage amplification unit, and the output end of the controlled unit is electrically connected with the communication interface and used for inputting the amplified voltage to the communication interface after receiving the switching signal;
the joint control circuit comprises a signal receiving unit, a delay unit and a joint control unit which are electrically connected in sequence, wherein the signal receiving unit inputs a high-level starting signal to the delay unit after receiving the starting signal, the delay unit delays the high-level starting signal for a preset time and then outputs the high-level starting signal to the joint control unit corresponding to each controlled unit, the joint control unit controls the controlled units to be in a conduction state, and the output ends of the controlled units and the communication interface are electrically connected.
Optionally, in a possible implementation manner of the first aspect, the voltage stabilizing and boosting unit includes a first voltage stabilizing resistor, the first voltage stabilizing resistor is electrically connected to the first voltage stabilizing inductor and the first voltage stabilizing diode in sequence, the voltage stabilizing and boosting unit includes an MH7013 chip, a pin 2 of the MH7013 chip is electrically connected to a positive input end of the first voltage stabilizing diode, a pin 3 of the MH7013 chip is electrically connected to a negative input end of the first voltage stabilizing diode, and a pin 1 of the MH7013 chip is grounded;
the first voltage-stabilizing capacitor is connected with a connecting node of the first voltage-stabilizing inductor and the positive input end of the first voltage-stabilizing diode in series and is grounded, the second voltage-stabilizing capacitor is connected with a connecting node of the negative input end of the first voltage-stabilizing diode and the voltage amplification unit in series and is grounded, and the second voltage-stabilizing resistor is connected with the second voltage-stabilizing capacitor in parallel.
Optionally, in a possible implementation manner of the first aspect, the voltage amplifying unit includes a first amplifying capacitor, one end of the first amplifying capacitor is electrically connected to the voltage stabilizing and boosting unit, the other end of the first amplifying capacitor is electrically connected to a base of a first amplifying transistor, a collector of the first amplifying transistor is electrically connected to a power supply, an emitter of the first amplifying transistor is grounded in series with a second amplifying resistor, one end of the first amplifying resistor is connected to a node between the first amplifying capacitor and the base of the first amplifying transistor, and the other end of the first amplifying resistor is electrically connected to the power supply;
one end of the second amplification capacitor is electrically connected with the emitting electrode of the first amplification triode and the connection node of the third amplification resistor, the other end of the second amplification capacitor is electrically connected with the controlled unit, and the third amplification resistor, the second amplification capacitor and the connection node of the controlled unit are connected in series and grounded.
Optionally, in a possible implementation manner of the first aspect, the signal receiving unit includes a first receiving trigger switch, and the first receiving trigger switch is connected in series with a first receiving resistor to ground.
Optionally, in a possible implementation manner of the first aspect, the delay unit includes a first delay resistor, the first delay resistor is grounded in series with a second delay capacitor, the delay unit includes a 555 circuit, both pins 8 and 4 of the 555 circuit are electrically connected to a power supply, both pins 6 and 7 of the 555 circuit are electrically connected to a connection node of the first delay resistor and the second delay capacitor, both pins 2 of the 555 circuit are electrically connected to the first delay capacitor, the first delay capacitor is electrically connected to a connection node of the first delay resistor and the second delay capacitor, the connection node of the first delay resistor and the second delay capacitor is electrically connected to the signal receiving unit, pin 1 of the 555 circuit is grounded, and pin 3 of the 555 circuit is electrically connected to the joint control unit.
Optionally, in a possible implementation manner of the first aspect, the joint control unit includes a first joint control resistor, the first joint control resistor is connected to the output end of the delay unit, and the first joint control resistor is connected in series with the first joint control light emitting diode and grounded.
Optionally, in a possible implementation manner of the first aspect, the controlled unit includes a first controlled triode, a collector of the first controlled triode is electrically connected to the voltage amplifying unit, an emitter of the first controlled triode is electrically connected to a first controlled resistor, the other end of the first controlled resistor is electrically grounded, and a node between the first controlled resistor and the emitter of the first controlled triode is connected to the communication interface.
Optionally, in a possible implementation manner of the first aspect, the joint control unit includes a first joint control resistor, the first joint control resistor is connected to an output end of the delay unit, and the first joint control resistor and the first joint control relay coil are connected in series and grounded.
Optionally, in a possible implementation manner of the first aspect, the controlled unit includes a first controlled normally-open switch, the first controlled normally-open switch is electrically connected in series with a first controlled resistor and is grounded, and a node of the first controlled resistor and the first controlled normally-open switch is connected to the communication interface.
Drawings
FIG. 1 is a schematic diagram of a data acquisition circuit;
FIG. 2 is a schematic diagram of a first embodiment of a data acquisition sub-circuit;
FIG. 3 is a schematic structural diagram of a first embodiment of a joint control circuit;
FIG. 4 is a schematic structural diagram of a second embodiment of the joint control circuit;
fig. 5 is a schematic circuit diagram of a circuit structure between the joint control circuit and a plurality of controlled circuits.
Reference numerals:
11. a voltage stabilizing and boosting unit; 12. a voltage amplifying unit; 13. a controlled unit; 14. a signal receiving unit; 15. a delay unit; 16. and a joint control unit.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein.
It should be understood that in the present application, "comprising" and "having" and any variations thereof, is intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be understood that, in the present invention, "a plurality" means two or more. "and/or" is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "comprising a, B and C", "comprising a, B, C" means that all three of a, B, C are comprised, "comprising a, B or C" means comprising one of a, B, C, "comprising a, B and/or C" means comprising any 1 or any 2 or 3 of a, B, C.
The technical solution of the present invention will be described in detail with specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.
The utility model provides a data acquisition circuit suitable for health risk assessment is provided, include:
the joint control circuit and the data acquisition sub-circuits are electrically connected with the corresponding monitoring electrodes. The monitoring electrode can be in a patch form and is in contact with a human body, and is used for collecting electric energy of different parts. As shown in fig. 1, each data acquisition sub-circuit corresponds to a monitoring electrode T1, and the monitoring electrode may be attached to different positions of the user, such as the head, the step, and so on. The application scenario of the technical scheme provided by the invention is suitable for acquiring and analyzing the human body electrical impedance according to the bioelectrical impedance distance. For example, chinese patent publication No. CN105476632A discloses a system and method for evaluating health risk of human body electrical impedance, which collects and analyzes human body electrical impedance to obtain health status of corresponding parts. The invention can combine the principle of the analog circuit, and the joint control circuit is used for respectively performing joint control on the plurality of data acquisition sub-circuits, so that the plurality of data acquisition sub-circuits can be synchronously opened and closed to acquire data, and the characteristic that the acquired human body electrical impedance has consistency in acquisition time is further ensured.
As shown in fig. 2 and fig. 3, the data acquisition sub-circuit includes a voltage stabilizing and boosting unit 11, an input end of which is connected to the monitoring electrode, and is configured to perform voltage stabilizing processing on the voltage output by the monitoring electrode. According to the technical scheme provided by the invention, the voltage stabilizing and boosting unit can be used for stabilizing the voltage output by the monitoring electrode and primarily boosting the voltage, the boosting amplitude at the moment is relatively small in order to ensure the voltage stabilizing effect during primary boosting, the stable voltage output by the monitoring electrode can be obtained by the method, and further, after the data are transmitted to the processor subsequently, the data can be analyzed according to the stable voltage.
The voltage-stabilizing and voltage-boosting unit 11 comprises a first voltage-stabilizing resistor R11, the first voltage-stabilizing resistor R11 is sequentially electrically connected with a first voltage-stabilizing inductor L1 and a first voltage-stabilizing diode D1, the voltage-stabilizing and voltage-boosting unit comprises an MH7013 chip, a No. 2 pin of the MH7013 chip is electrically connected with the positive input end of the first voltage-stabilizing diode D1, a No. 3 pin of the MH7013 chip is electrically connected with the negative input end of the first voltage-stabilizing diode D1, and a No. 1 pin of the MH7013 chip is grounded.
The first voltage-stabilizing capacitor C11 is connected with the first voltage-stabilizing inductor L1 and the connecting node of the positive input end of the first voltage-stabilizing diode D1 in series and is grounded, the second voltage-stabilizing capacitor C12 is connected with the negative input end of the first voltage-stabilizing diode D1 and the connecting node of the voltage amplifying unit in series and is grounded, and the second voltage-stabilizing resistor R12 is connected with the second voltage-stabilizing capacitor C12 in parallel.
According to the technical scheme provided by the invention, the electric signal from a human body received by the electrode is monitored, but the electric signal is unstable and tiny at the moment, so that the electric signal is transmitted to the voltage stabilizing and boosting unit firstly, the electric signal is boosted for the first time, the subsequent processor is convenient to process, in order to improve the voltage stabilizing effect, the first boosting amplitude value is small, and after the voltage is boosted and stabilized by the voltage stabilizing and boosting unit, the voltage subjected to voltage stabilizing and amplification is transmitted to the voltage amplifying unit for the second boosting, and the subsequent processor is convenient to process.
The data acquisition sub-circuit comprises a voltage amplification unit 12, wherein the input end of the voltage amplification unit 12 is electrically connected with the output end of the voltage stabilization and boosting unit and is used for amplifying the voltage stabilized by the voltage stabilization and boosting unit.
The voltage amplification unit comprises a first amplification capacitor C21, one end of the first amplification capacitor C21 is electrically connected with the voltage stabilization and boosting unit, the other end of the first amplification capacitor C21 is electrically connected with the base electrode of a first amplification triode Q21, the collector electrode of the first amplification triode Q21 is electrically connected with a power supply, the emitter electrode of the first amplification triode Q21 is connected with a second amplification resistor R22 in series and grounded, one end of the first amplification resistor R21 is electrically connected with the first amplification capacitor C21, and the other end of the first amplification resistor R21 is electrically connected with the power supply.
One end of the second amplifying capacitor R22 is electrically connected to a connection node between the emitter of the first amplifying transistor Q21 and the third amplifying resistor R22, the other end of the second amplifying capacitor R22 is electrically connected to the controlled unit, and the third amplifying resistor R23 is connected in series with a connection node between the second amplifying capacitor R22 and the controlled unit and is grounded.
According to the technical scheme provided by the invention, the once amplified electric signal is sent to the voltage amplification unit, secondary boosting is carried out by using an amplification circuit formed by the triodes, and the electric signal is amplified in a higher amplitude, so that the obtained voltage information is larger, the subsequent processing standard of the processor is reached, and the subsequent processor obtains the relevant information of the human body according to the amplified voltage.
The data acquisition sub-circuit comprises a controlled unit 13, the input end of the controlled unit is electrically connected with the output end of the voltage amplification unit, and the output end of the controlled unit is electrically connected with the communication interface and used for inputting the amplified voltage to the communication interface P1 after receiving the switching signal. The communication interface P1 may be a USB interface or an electrical interface directly connected to the processor. Under the optimal condition, the communication interface P1 is selected to be a USB, and the data acquisition circuit can be connected with the processor of the entity monitor through the USB in a mode, so that the data acquisition circuit is easy to replace. The utility model discloses the entity monitor can be among the prior art, carry out the equipment of health analysis based on the electrical impedance.
The controlled unit 13 includes a first controlled triode Q61, a collector of the first controlled triode Q61 is electrically connected to the voltage amplifying unit, an emitter of the first controlled triode Q61 is electrically connected to a first controlled resistor R61, and the other end of the first controlled resistor R61 is grounded. The first controlled transistor Q61 may be an optical drive transistor. That is, under the action of the light emitting diode, the corresponding triode of the optical drive can be in a conducting state, so that the voltage amplified by the voltage amplifying unit can be transmitted to the communication interface P1 through the controlled unit.
According to the technical scheme provided by the invention, after the controlled unit receives the amplified electric signals, the amplified electric signals are not directly transmitted to the communication interface P1, the joint control unit is required to conduct the signals, and after all patches are installed by workers and preparation work is finished, the joint control unit is triggered to further control all the controlled units to be synchronously closed and conducted.
According to the technical scheme, in one possible implementation mode, the joint control circuit comprises a signal receiving unit, a delay unit and a joint control unit which are electrically connected in sequence, the signal receiving unit inputs a high-level starting signal to the delay unit after receiving the starting signal, the delay unit delays the high-level starting signal for a preset time and outputs the high-level starting signal to the joint control unit corresponding to each controlled unit, the joint control unit controls the controlled units to be in a conducting state, and the output end of the controlled unit is electrically connected with the communication interface.
The signal receiving unit 14 includes a first receiving trigger switch S31, and the first receiving trigger switch S31 and the first receiving resistor R31 are connected in series to ground. After judging that all patches are installed and prepared, the common staff such as the user and the doctor can trigger the corresponding first receiving trigger switch S31, so that a loop where the first receiving trigger switch S31 is located is turned on, a high-level start signal is continuously input to the delay unit, the delay unit can delay preset time after receiving the delay signal, the preset time can be 3 seconds, 10 seconds and the like, and initialization and starting time of the processor can be given through the method.
The delay unit 15 comprises a first delay resistor R41, the first delay resistor R41 and a second delay capacitor C42 are grounded in series, the delay unit comprises a 555 circuit, a pin 8 and a pin 4 of the 555 circuit are electrically connected with a power supply, a pin 6 and a pin 7 of the 555 circuit are electrically connected with a connection node of the first delay resistor R41 and the second delay capacitor C42, a pin 2 of the 555 circuit is electrically connected with the first delay capacitor C41, the first delay capacitor C41 is electrically connected with a connection node of the first delay resistor R41 and the second delay capacitor C42, the connection node of the first delay resistor R41 and the second delay capacitor C42 is electrically connected with the signal receiving unit, a pin 1 of the 555 circuit is grounded, and a pin 3 of the 555 circuit is electrically connected with the joint control unit. The delay unit is formed on the basis of a 555 circuit, and the delay effect is realized through the 555 circuit.
The joint control unit 16 includes a first joint control resistor R51, and the first joint control resistor R51 and the first joint control light emitting diode D51 are connected in series to ground. In one possible embodiment, the joint control unit includes a first joint control light emitting diode D51, and the first controlled triode Q61 can be controlled to be turned on and off by the first joint control light emitting diode D51.
In another possible embodiment, as shown in fig. 4, the first joint control light emitting diode D51 of the joint control unit may be replaced by a first joint control relay coil K51, and the first controlled triode Q61 of the controlled unit may be replaced by a first controlled normally-open switch K61.
In the technical scheme provided by the invention, the number of the joint control units is 1, the number of the controlled units is multiple, as shown in fig. 5, for example, the joint control unit includes multiple joint control relay coils, the joint control relay coils at this time can be a first joint control relay coil K51, a second joint control relay coil K52 and an nth joint control relay coil K5N, and the number of the corresponding controlled units is multiple, that is, the corresponding controlled units correspond to a first controlled normally open switch K61, a second controlled normally open switch K62 and an nth controlled normally open switch K6N. Through the mode, a worker can carry out joint control on a plurality of controlled units through one joint control unit, namely, the control on a plurality of data acquisition sub-circuits is realized.
Note that A1 is a connection node of the circuit, and the circuits in fig. 2 and 3 are connected circuits, that is, connected through this connection node of A1.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (9)
1. A data acquisition circuit adapted for health risk assessment, comprising:
the joint control circuit and the data acquisition sub-circuits are electrically connected with the corresponding monitoring electrodes;
the data acquisition sub-circuit comprises a voltage stabilizing and boosting unit, and the input end of the voltage stabilizing and boosting unit and the monitoring electrode are used for performing voltage stabilizing treatment on the voltage output by the monitoring electrode;
the data acquisition sub-circuit comprises a voltage amplification unit, wherein the input end of the voltage amplification unit is electrically connected with the output end of the voltage stabilization and boosting unit and is used for amplifying the voltage stabilized by the voltage stabilization and boosting unit;
the data acquisition sub-circuit comprises a controlled unit, the input end of the controlled unit is electrically connected with the output end of the voltage amplification unit, and the output end of the controlled unit is electrically connected with the communication interface and used for inputting the amplified voltage to the communication interface after receiving the switching signal;
the joint control circuit comprises a signal receiving unit, a delay unit and a joint control unit which are electrically connected in sequence, wherein the signal receiving unit inputs a high-level starting signal to the delay unit after receiving the starting signal, the delay unit delays the high-level starting signal for a preset time and then outputs the high-level starting signal to the joint control unit corresponding to each controlled unit, the joint control unit controls the controlled units to be in a conduction state, and the output ends of the controlled units and the communication interface are electrically connected.
2. The data acquisition circuit suitable for health risk assessment according to claim 1,
the voltage stabilizing and boosting unit comprises a first voltage stabilizing resistor, the first voltage stabilizing resistor is electrically connected with a first voltage stabilizing inductor and a first voltage stabilizing diode in sequence, the voltage stabilizing and boosting unit comprises an MH7013 chip, a pin No. 2 of the MH7013 chip is electrically connected with the positive input end of the first voltage stabilizing diode, a pin No. 3 of the MH7013 chip is electrically connected with the negative input end of the first voltage stabilizing diode, and a pin No. 1 of the MH7013 chip is arranged in a grounding mode;
the first voltage-stabilizing capacitor is connected with a connecting node of the first voltage-stabilizing inductor and the positive input end of the first voltage-stabilizing diode in series and is grounded, the second voltage-stabilizing capacitor is connected with a connecting node of the negative input end of the first voltage-stabilizing diode and the voltage amplification unit in series and is grounded, and the second voltage-stabilizing resistor is connected with the second voltage-stabilizing capacitor in parallel.
3. The data acquisition circuit suitable for health risk assessment according to claim 2,
the voltage amplification unit comprises a first amplification capacitor, one end of the first amplification capacitor is electrically connected with the voltage stabilization and boosting unit, the other end of the first amplification capacitor is electrically connected with the base electrode of a first amplification triode, the collector electrode of the first amplification triode is electrically connected with a power supply, the emitter electrode of the first amplification triode is connected with a second amplification resistor in series and grounded, one end of the first amplification resistor is connected with a node of the first amplification capacitor and the base electrode of the first amplification triode, and the other end of the first amplification resistor is electrically connected with the power supply;
one end of the second amplification capacitor is electrically connected with a connection node of the emitter of the first amplification triode and the third amplification resistor, the other end of the second amplification capacitor is electrically connected with the controlled unit, and the third amplification resistor, the second amplification capacitor and the connection node of the controlled unit are connected in series and grounded.
4. The data acquisition circuit suitable for health risk assessment according to claim 3,
the signal receiving unit comprises a first receiving trigger switch, and the first receiving trigger switch and a first receiving resistor are connected in series and grounded.
5. The data acquisition circuit suitable for health risk assessment according to claim 4,
the time delay unit comprises a first time delay resistor, the first time delay resistor and a second time delay capacitor are grounded in series, the time delay unit comprises a 555 circuit, a pin 8 and a pin 4 of the 555 circuit are electrically connected with a power supply, a pin 6 and a pin 7 of the 555 circuit are electrically connected with a connecting node of the first time delay resistor and the second time delay capacitor, a pin 2 of the 555 circuit is electrically connected with the first time delay capacitor, the first time delay capacitor is electrically connected with a connecting node of the first time delay resistor and the second time delay capacitor, the connecting node of the first time delay resistor and the second time delay capacitor is electrically connected with the signal receiving unit, a pin 1 of the 555 circuit is grounded, and a pin 3 of the 555 circuit is electrically connected with the joint control unit.
6. The data acquisition circuit suitable for health risk assessment according to claim 5,
the joint control unit comprises a first joint control resistor, the first joint control resistor is connected with the output end of the delay unit, and the first joint control resistor and the first joint control light emitting diode are connected in series and grounded.
7. The data acquisition circuit suitable for health risk assessment according to claim 6,
the controlled unit comprises a first controlled triode, a collector of the first controlled triode is electrically connected with the voltage amplifying unit, an emitter of the first controlled triode is electrically connected with a first controlled resistor, the other end of the first controlled resistor is grounded, and a node of the first controlled resistor and the emitter of the first controlled triode is connected with the communication interface.
8. The data acquisition circuit suitable for health risk assessment according to claim 5,
the joint control unit comprises a first joint control resistor, the first joint control resistor is connected with the output end of the delay unit, and the first joint control resistor and the first joint control relay coil are connected in series and grounded.
9. The data acquisition circuit suitable for health risk assessment according to claim 6,
the controlled unit comprises a first controlled normally-open switch, the first controlled normally-open switch and a first controlled resistor are electrically connected in series and grounded, and nodes of the first controlled resistor and the first controlled normally-open switch are connected with the communication interface.
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| CN202222506701.5U CN218675714U (en) | 2022-09-19 | 2022-09-19 | Data acquisition circuit and system suitable for health risk assessment |
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| CN202222506701.5U CN218675714U (en) | 2022-09-19 | 2022-09-19 | Data acquisition circuit and system suitable for health risk assessment |
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