CN218122122U - Glucometer testing device and equipment - Google Patents
Glucometer testing device and equipment Download PDFInfo
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- CN218122122U CN218122122U CN202221717933.9U CN202221717933U CN218122122U CN 218122122 U CN218122122 U CN 218122122U CN 202221717933 U CN202221717933 U CN 202221717933U CN 218122122 U CN218122122 U CN 218122122U
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Abstract
The application discloses blood glucose meter testing arrangement and equipment relates to test technical field. The device includes: controller, test module. The controller is connected with one end of the test module and is used for detecting a parameter to be tested and connecting a corresponding test circuit, and the parameter to be tested at least comprises one of alternating current frequency, alternating current RMS value and alternating current voltage direct current bias; the other end of the test module is connected with the glucometer and used for receiving alternating current signals of parameters to be tested of the glucometer and connecting the test module with a test circuit corresponding to the parameters to be tested so as to test the parameters to be tested, and the test module at least comprises one of an alternating current frequency test circuit, an alternating current RMS value test circuit and an alternating current voltage direct current bias test circuit. Because the test module comprises the test circuit corresponding to the parameter to be tested, when the parameter to be tested is tested, technicians are not required to use instruments such as a universal meter and a resistor in a matching manner, the parameter testing step is simplified, the parameter testing time is shortened, and the testing efficiency is improved.
Description
Technical Field
The utility model relates to a test technical field especially relates to a blood glucose meter testing arrangement and equipment.
Background
With the continuous development of the technology, the detection technology of the glucometer is more and more complicated, and meanwhile, the refinement is more and more benefited. The existing detection for the blood glucose meter generally uses an alternating current impedance method to detect the HCT index. The AC impedance test method is generally applied to the AC frequency, AC RMS value, AC voltage DC bias, ADC calibration, linear calibration and verification of the test current of the glucose meter, power consumption of the glucose meter, and the like. When testing the mentioned parameters, instruments such as a universal meter and a resistor need to be used, the instruments are matched with each other to test one parameter, the steps are complicated, the instruments cannot be well matched with each other by professional technicians to use, and when testing one parameter by matching a plurality of instruments, the testing time is too long, so that the testing efficiency is low.
In view of the above problems, the technical skill in the art needs to find how to efficiently test the parameters of a blood glucose meter.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a blood glucose meter testing arrangement and equipment for test blood glucose meter's parameter high efficiently.
In order to solve the problem of efficiently testing the parameters of a blood glucose meter, the application provides a blood glucose meter testing device and equipment.
The application provides a blood glucose meter testing arrangement includes: the device comprises a controller and a test module;
the controller is connected with one end of the test module and is used for detecting a parameter to be tested and connecting a test circuit corresponding to the parameter to be tested, wherein the parameter to be tested at least comprises one of alternating current frequency, alternating current RMS (root mean square) value and alternating current voltage direct current bias;
the other end of the test module is connected with the glucometer and used for receiving alternating current signals of parameters to be tested of the glucometer and connecting the test circuit corresponding to the parameters to be tested so as to test the parameters to be tested, wherein the test module at least comprises one of an alternating current frequency test circuit, an alternating current RMS value test circuit and an alternating current voltage direct current bias test circuit.
Preferably, the alternating current frequency test circuit includes: the circuit comprises a first operational amplifier, a hysteresis comparator, a first resistor, a second resistor and a first capacitor;
the non-inverting input end of the first operational amplifier is used as the input end of the alternating current frequency test circuit, the inverting input end of the first operational amplifier is grounded, the output end of the first operational amplifier is connected with the first end of the first capacitor, the second end of the first capacitor is connected with a common end formed by the inverting input end of the hysteresis comparator and the inverting input end of the comparator, the non-inverting input end of the hysteresis comparator is connected with a voltage source, the non-inverting input end of the comparator is connected with a common end formed by the first end of the first resistor and the second end of the second resistor, the second end of the first resistor is connected with the voltage source, the first end of the second resistor is connected with the output end of the comparator, and the output end of the hysteresis comparator and the output end of the comparator are both used as the output end of the alternating current frequency test circuit.
Preferably, the alternating RMS value test circuit comprises: the second operational amplifier, the third operational amplifier and the DC conversion chip;
the non-inverting input end of the second operational amplifier is used as the input end of the alternating current RMS value testing circuit, the inverting input end of the second operational amplifier is connected with the output end of the second operational amplifier, the output end of the second operational amplifier is connected with the first input end of the DC conversion chip, the second input end of the DC conversion chip is grounded, the output end of the DC conversion chip is connected with a common end formed by the non-inverting input end of the third operational amplifier and the inverting input end of the third operational amplifier, and the output end of the third operational amplifier is used as the output end of the alternating current RMS value testing circuit.
Preferably, the alternating voltage direct current bias test circuit includes: the fourth operational amplifier, the fifth operational amplifier and the second-order RC low-pass filter;
the non-inverting input end of the fourth operational amplifier is used as the input end of the alternating voltage direct current bias test circuit, the inverting input end of the fourth operational amplifier is connected with the output end of the fourth operational amplifier, the output end of the fourth operational amplifier is connected with the input end of the second-order RC low-pass filter, the output end of the second-order RC low-pass filter is connected with the non-inverting input end of the fifth operational amplifier, the inverting input end of the fifth operational amplifier is connected with the output end of the fifth operational amplifier, and the output end of the fifth operational amplifier is used as the output end of the alternating voltage direct current bias test circuit.
Preferably, the second order RC low pass filter includes: a third resistor, a fourth resistor, a second capacitor and a third capacitor;
the first end of the third resistor is used as the input end of the second-order RC low-pass filter, the second end of the third resistor is connected with the common end formed by the first end of the fourth resistor and the first end of the second capacitor, the second end of the second capacitor is connected with the second end of the third capacitor, the first end of the third capacitor is connected with the second end of the fourth resistor, and the second end of the fourth resistor is used as the output end of the second-order RC low-pass filter.
Preferably, the alternating current frequency test circuit further includes: a fifth resistor;
and a first end of the fifth resistor is connected with a common end formed by the second end of the first capacitor and the inverting input end of the hysteresis comparator, and a second end of the fifth resistor is connected with a voltage source.
Preferably, the test module further comprises: an analog-to-digital converter;
the analog-to-digital converter comprises a plurality of input interfaces and a plurality of output interfaces, wherein one input interface is connected with the output end of the alternating current RMS value test circuit, one input interface is connected with the output end of the alternating current voltage direct current bias test circuit, one output interface outputs a direct current signal corresponding to the alternating current RMS value, and one output interface outputs a direct current signal corresponding to the representation of the alternating current voltage direct current bias.
Preferably, the test module further comprises: a calibration verification circuit;
the calibration verification circuit includes: the digital-to-analog converter comprises a first digital-to-analog converter, a second digital-to-analog converter and a plurality of current sources;
the input end of the first digital-to-analog converter is connected with the output interface of the analog-to-digital converter, the input end of the second digital-to-analog converter is connected with the output interface of the analog-to-digital converter, the output end of the first digital-to-analog converter is connected with one current source, and the output end of the second digital-to-analog converter is connected with the other current source.
Preferably, the current source comprises: a sixth operational amplifier, an MOS tube and a multi-way switch;
the non-inverting input end of the sixth operational amplifier serves as the input end of a current source, the inverting input end of the sixth operational amplifier is connected with the source electrode of the MOS tube, the output end of the sixth operational amplifier is connected with the grid electrode of the MOS tube, the drain electrode of the MOS tube serves as the first output end of the current source and is connected with the blood glucose meter, and the source electrode of the MOS tube is connected with the multi-way switch.
In order to solve the problem of efficiently testing the parameters of the blood glucose meter, the application also provides a blood glucose meter testing device comprising the blood glucose meter testing device.
The application provides a blood glucose meter testing arrangement includes: controller, test module. The controller is connected with one end of the test module and is used for detecting a parameter to be tested and connecting a test circuit corresponding to the parameter to be tested, wherein the parameter to be tested at least comprises one of alternating current frequency, alternating current RMS value and alternating voltage direct current bias; the other end of the test module is connected with the glucometer and used for receiving alternating current signals of parameters to be tested of the glucometer and connecting the test module corresponding to the parameters to be tested so as to test the parameters to be tested, wherein the test module at least comprises one of an alternating current frequency test circuit, an alternating current RMS value test circuit and an alternating current voltage direct current bias test circuit. Because the test module comprises the test circuit corresponding to the parameter to be tested, when the parameter to be tested is tested, technicians are not required to use instruments such as a universal meter and a resistor in a matching manner, the parameter testing steps are simplified, the parameter testing time is reduced, and the testing efficiency is improved.
The application also provides a glucometer test device, and the effect is the same as above.
Drawings
In order to illustrate the embodiments of the present invention more clearly, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious to those skilled in the art that other drawings can be obtained based on these drawings without inventive work.
FIG. 1 is a block diagram of a blood glucose meter testing device according to an embodiment of the present disclosure;
FIG. 2 is a block diagram of another blood glucose meter testing device provided in an embodiment of the present application;
FIG. 3 is a circuit diagram of an AC frequency test provided by an embodiment of the present application;
FIG. 4 is a circuit diagram of an AC RMS value test provided in an embodiment of the present application;
FIG. 5 is a circuit diagram of an AC DC offset test circuit according to an embodiment of the present application;
fig. 6 is a circuit diagram of a calibration verification circuit according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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, the ordinary skilled in the art can obtain all other embodiments without creative work, which all belong to the protection scope of the present invention.
The core of the utility model is to provide a blood glucose meter testing arrangement and equipment for test blood glucose meter's parameter high efficiently.
In order to make the technical field better understand the solution of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings and the detailed description.
With the continuous development of the technology, the detection technology of the glucometer is more and more complicated, and meanwhile, the refinement is more and more benefited. The alternating current impedance method for detecting the Hematocrit (HCT) index is widely applied to the blood glucose detection technology, and the introduction of the technology also provides a very high challenge for the factory inspection method of the blood glucose meter, so that the mass production of the blood glucose meter is poor.
In order to improve the detection accuracy of the glucometer, the novel glucometer needs to comprehensively detect various indexes before leaving the factory, the detectable indexes generally comprise alternating current frequency, alternating current RMS value, alternating current voltage direct current bias and the like, and the method also comprises ADC calibration, linear calibration and verification of glucometer detection current and glucometer power consumption. When testing the mentioned parameters, instruments such as a universal meter and a resistor need to be used, the instruments are matched with each other to test one parameter, the steps are complicated, the instruments cannot be well matched with each other by professional technicians to use, and when testing one parameter by matching a plurality of instruments, the testing time is too long, so that the testing efficiency is low.
In order to solve the problem of efficiently testing the parameters of a blood glucose meter, the application provides a blood glucose meter testing device. Fig. 1 is a block diagram of a blood glucose meter testing device according to an embodiment of the present application, and as shown in fig. 1, the device includes: controller 10, test module 11. The controller is connected with one end of the test module and is used for detecting a parameter to be tested and connecting a test circuit corresponding to the parameter to be tested, wherein the parameter to be tested at least comprises one of alternating current frequency, alternating current RMS value and alternating voltage direct current bias; the other end of the test module is connected with the blood glucose meter and used for receiving an alternating current signal of a parameter to be tested of the blood glucose meter and connecting a test circuit corresponding to the parameter to be tested so as to test the parameter to be tested, wherein the test module at least comprises one of an alternating current frequency test circuit 101, an alternating current RMS value test circuit 102 and an alternating current voltage direct current bias test circuit 103.
In the application, the controller may be a PC upper computer, or may also be a controller such as an MCU, a BMC, a CPU, or the like, the type and the kind of the controller are not limited, and the implementation manner thereof may be determined according to a specific implementation scenario. The application provides a blood glucose meter testing arrangement includes: controller, test module. The controller is connected with one end of the test module and is used for detecting a parameter to be tested and connecting a test circuit corresponding to the parameter to be tested, wherein the parameter to be tested at least comprises one of alternating current frequency, alternating current RMS value and alternating voltage direct current bias; the other end of the test module is connected with the glucometer and used for receiving alternating current signals of parameters to be tested of the glucometer and connecting the test module corresponding to the parameters to be tested so as to test the parameters to be tested, wherein the test module at least comprises one of an alternating current frequency test circuit, an alternating current RMS value test circuit and an alternating current voltage direct current bias test circuit. Because the test module comprises the test circuit corresponding to the parameter to be tested, when the parameter to be tested is tested, technicians are not required to use instruments such as a universal meter and a resistor in a matching manner, the parameter testing steps are simplified, the parameter testing time is reduced, and the testing efficiency is improved.
Fig. 2 is a block diagram of another blood glucose meter testing device provided in an embodiment of the present application. On the basis of the above embodiment, as a more preferred embodiment, as shown in fig. 2, the test module 11 further includes: the verification circuitry 104 is calibrated. The calibration verification circuit 104 includes: a first digital-to-analog converter Q4, a second digital-to-analog converter Q5, and a plurality of current sources V. The input end of the first digital-to-analog converter is connected with the output interface of the analog-to-digital converter, the input end of the second digital-to-analog converter is connected with the output interface of the analog-to-digital converter, the output end of the first digital-to-analog converter is connected with one current source, and the output end of the second digital-to-analog converter is connected with the other current source.
The first digital-to-analog converter and the second digital-to-analog converter can be set as relays, and when the first digital-to-analog converter and the second digital-to-analog converter are set as relays, the relays are used for monitoring current consumption conditions of the blood glucose meter in different states: the power supply path is provided with two relays and a resistor which are connected in parallel. When the working current of the blood glucose meter needs to be measured, one relay is opened, the other relay is closed, so that the current flows through the corresponding resistor, and the voltage generated at the two ends of the resistor is the working current obtained through the voltage. On the contrary, when testing the sleep current, one relay is closed, and the other relay is opened, thereby obtaining the sleep current.
In this embodiment, the detected parameters are verified, and if the tested parameters do not meet the factory standards of the blood glucose meter after verification, the parameters need to be calibrated to ensure that the parameters detected by the blood glucose meter are all correct parameters. It should be noted that, in this embodiment, in order to enable each digital-to-analog converter and each current source to be in a better working state, a peripheral circuit may be connected to each digital-to-analog converter and each current source, and a resistor, a capacitor, an operational amplifier, and the like with different resistance values may be provided.
Fig. 3 is a circuit diagram of an ac frequency test provided in the embodiment of the present application. On the basis of the above-described embodiment, as a more preferred embodiment, as shown in fig. 3, the ac frequency test circuit 101 includes: the circuit comprises a first operational amplifier U1, a hysteresis comparator U2, a comparator U3, a first resistor R1, a second resistor R2 and a first capacitor C1. The non-inverting input end of the first operational amplifier is used as the input end of the alternating current frequency test circuit, the inverting input end of the first operational amplifier is grounded, the output end of the first operational amplifier is connected with the first end of the first capacitor, the second end of the first capacitor is connected with a common end formed by the inverting input end of the hysteresis comparator and the inverting input end of the comparator, the non-inverting input end of the hysteresis comparator is connected with a voltage source, the non-inverting input end of the comparator is connected with a common end formed by the first end of the first resistor and the second end of the second resistor, the second end of the first resistor is connected with the voltage source, the first end of the second resistor is connected with the output end of the comparator, and the output end of the hysteresis comparator and the output end of the comparator are both used as the output end of the alternating current frequency test circuit.
Further, the ac frequency test circuit 101 includes: and a fifth resistor R5. The first end of the fifth resistor is connected with the common end formed by the second end of the first capacitor and the inverted input end of the hysteresis comparator, and the second end of the fifth resistor is connected with the voltage source.
The input of the AC frequency test circuit is configured to receive an AC signal (which may also be referred to as an AC signal) indicative of the AC frequency from the blood glucose meter. At this time, the AC signal (denoted as a) received by the input terminal of the AC frequency testing circuit passes through the first operational amplifier U1, and the gain of the amplifier can be represented by the sixth resistor R6 and the seventh resistor R7 as: a (1 + R6/R7). The AC signal (denoted as B) passing through the first operational amplifier is filtered from the AC signal by the first capacitor. And then, a fifth resistor provides accurate direct current bias, so that an alternating current signal (the signal is denoted as C) with direct current components in the alternating current signal filtered is obtained, and the C signal is a sine wave signal.
In addition, in order to improve the interference resistance, the signal is converted into a square wave (the square wave signal is denoted as D). It should be noted that, the hysteresis comparator adjusts the threshold width of the hysteresis comparator by adjusting the sizes of the first resistor and the second resistor, and the wider the threshold width of the hysteresis comparator is, the stronger the anti-interference capability of the hysteresis comparator is. However, the resolution of the hysteresis comparator becomes gradually lower while the interference capability becomes gradually stronger. The square wave signal is used to derive the ac frequency. It should be noted that, within the effective measurement range of the blood glucose meter, the measurement accuracy of the ac frequency needs to reach 0.5 ‰.
In addition, in order to make the ac frequency testing circuit work in a better environment and to make the ac frequency testing circuit more stable, resistors and capacitors are connected around the devices, for example: a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, a fourth capacitor C4, a fifth capacitor C5, a sixth capacitor C6, and a seventh capacitor C7.
The voltage source mentioned in this embodiment may be a chip capable of providing voltage, and as a preferred embodiment, the voltage chip may include: VI pin, EN pin, VO _ SEN pin, GND _ SEN pin and GND pin. And a capacitor and a resistor are connected to each pin to stabilize the operation of the chip. It can be understood that the types and the magnitudes of the resistors and the capacitors mentioned in the present embodiment are not limited; the above-mentioned embodiment is only one of many embodiments, the connection manner of the peripheral circuit is not limited, and the types and the magnitudes of the resistances of the resistors and the capacitors in the peripheral circuit are not limited, and the implementation manner of the resistors and the capacitors in the peripheral circuit may be determined according to a specific implementation scenario.
FIG. 4 is a circuit diagram of an AC RMS value test circuit provided in an embodiment of the present application. Based on the above embodiment, as a more preferred embodiment, as shown in fig. 4, the alternating RMS value test circuit 102 includes: the device comprises a second operational amplifier U4, a third operational amplifier U5 and a DC conversion chip Q1. The non-inverting input end of the second operational amplifier is used as the input end of the alternating current RMS value testing circuit, the inverting input end of the second operational amplifier is connected with the output end of the second operational amplifier, the output end of the second operational amplifier is connected with the first input end of the DC conversion chip, the second input end of the DC conversion chip is grounded, the output end of the DC conversion chip is connected with a common end formed by the non-inverting input end of the third operational amplifier and the inverting input end of the third operational amplifier, and the output end of the third operational amplifier is used as the output end of the alternating current RMS value testing circuit. Wherein, the precision of the obtained AC RMS value can reach +/-0.1 mV.
It should be noted that, the DC conversion chip mentioned in this application at least includes: vout pin, IN1 pin, IN2 pin, OUT RTN pin, ENABLE pin, GND pin. And each pin is connected with a capacitor and a resistor for making the chip in a stable working state, for example: a tenth resistor R10, an eleventh resistor R11, a tenth capacitor C10, an eleventh capacitor C11, a twelfth capacitor C12, and a thirteenth capacitor C13. Similarly, in order to make the second operational amplifier in a stable working state, a positive power supply end of the second operational amplifier is connected with a ninth capacitor C9, and a negative power supply end of the second operational amplifier is connected with an eighth capacitor C8; in order to keep the third operational amplifier in a stable operation state, a twelfth resistor R12, a thirteenth resistor R13 and a fourteenth capacitor C14 are connected to the non-inverting input terminal of the third operational amplifier, a fourteenth resistor R14 and a fifteenth capacitor C15 are connected to the inverting input terminal of the third operational amplifier, and a fifteenth resistor R15 and a sixteenth capacitor C16 are connected to the output terminal of the third operational amplifier.
It can be understood that the types and the magnitudes of the resistors and the capacitors mentioned in the present embodiment are not limited; the above-mentioned embodiment is only one of many embodiments, the connection manner of the peripheral circuit is not limited, and the types and the resistance values of the resistors and the capacitors in the peripheral circuit are not limited, and the implementation manner of the resistors and the capacitors in the peripheral circuit can be determined according to specific implementation scenarios.
Fig. 5 is a diagram of an ac voltage dc offset test circuit according to an embodiment of the present application. On the basis of the above embodiment, as a more preferred embodiment, as shown in fig. 5, the ac voltage dc bias test circuit 103 includes: a fourth operational amplifier U6, a fifth operational amplifier U7 and a second-order RC low-pass filter Q2. The non-inverting input end of the fourth operational amplifier is used as the input end of the alternating voltage direct current bias test circuit, the inverting input end of the fourth operational amplifier is connected with the output end of the fourth operational amplifier, the output end of the fourth operational amplifier is connected with the input end of the second-order RC low-pass filter, the output end of the second-order RC low-pass filter is connected with the non-inverting input end of the fifth operational amplifier, the inverting input end of the fifth operational amplifier is connected with the output end of the fifth operational amplifier, and the output end of the fifth operational amplifier is used as the output end of the alternating voltage direct current bias test circuit. Wherein, the precision of the obtained alternating voltage direct current offset can reach +/-0.1 mV.
Wherein, second order RC low pass filter Q2 includes: a third resistor R3, a fourth resistor R4, a second capacitor C2 and a third capacitor C3. The first end of the third resistor is used as the input end of the second-order RC low-pass filter, the second end of the third resistor is connected with the common end formed by the first end of the fourth resistor and the first end of the second capacitor, the second end of the second capacitor is connected with the second end of the third capacitor, the first end of the third capacitor is connected with the second end of the fourth resistor, and the second end of the fourth resistor is used as the output end of the second-order RC low-pass filter.
In order to enable the fifth operational amplifier to be in a stable working state, an eighteenth capacitor C18 is connected to a positive power supply end of the fifth operational amplifier, and a seventeenth capacitor C17 is connected to a negative power supply end of the fifth operational amplifier; a nineteenth capacitor C19 and a sixteenth resistor R16 are connected to the inverting input end of the fifth operational amplifier; and a seventeenth resistor R17 and a twentieth capacitor C20 are connected to the output end of the fifth operational amplifier.
It can be understood that the types and the magnitudes of the resistors, the capacitors, and the like mentioned in the present embodiment are not limited; the above-mentioned embodiment is only one of many embodiments, the connection manner of the peripheral circuit is not limited, and the types and the resistance values of the resistors and the capacitors in the peripheral circuit are not limited, and the implementation manner of the resistors and the capacitors in the peripheral circuit can be determined according to specific implementation scenarios.
Fig. 6 is a circuit diagram of a calibration verification circuit according to an embodiment of the present application. On the basis of the above embodiment, as a more preferred embodiment, as shown in fig. 6, the current source V includes: a sixth operational amplifier U8, an MOS tube Q6 and a multi-way switch K1. The non-inverting input end of the sixth operational amplifier is used as the input end of the current source, the inverting input end of the sixth operational amplifier is connected with the source electrode of the MOS tube, the output end of the sixth operational amplifier is connected with the grid electrode of the MOS tube, the drain electrode of the MOS tube is used as the first output end of the current source and is connected with the glucometer, and the source electrode of the MOS tube is connected with the multi-way switch.
The peripheral resistor of the multi-way switch is controlled to be connected through the relevant polarity point of the blood glucose meter, all currents generated at the resistor pass through the MOS tube, and the voltage control current characteristic of the MOS tube is utilized, so that the grid source voltage of the MOS tube is stable, and stable output current is obtained.
In order to make the sixth operational amplifier, the MOS transistor, and the multi-way switch in a stable operating state, other devices are connected thereto, for example: an eighteenth resistor R18, a nineteenth resistor R19, a twentieth resistor R20, a twenty-first resistor R21, a twenty-second resistor R22, a twenty-third resistor R23, a twenty-first capacitor C21, a twenty-second capacitor C22 and a seventh operational amplifier U9. It should be noted that each current source may be configured in different embodiments according to different implementation scenarios, where the current source connected to the second digital-to-analog converter may have an additional capacitor to support the current source operation, for example: a twenty-third capacitor C23, a twenty-fourth capacitor C24.
It can be understood that the types and the magnitudes of the resistors, the capacitors, and the like mentioned in the present embodiment are not limited; the above-mentioned embodiment is only one of many embodiments, the connection manner of the peripheral circuit is not limited, and the types and the resistance values of the resistors and the capacitors in the peripheral circuit are not limited, and the implementation manner of the resistors and the capacitors in the peripheral circuit can be determined according to specific implementation scenarios.
On the basis of the above embodiment, as a more preferred embodiment, the test module further includes: and an analog-to-digital converter Q3. The analog-to-digital converter comprises a plurality of input interfaces and a plurality of output interfaces, wherein one input interface is connected with the output end of the alternating current RMS value test circuit, one input interface is connected with the output end of the alternating current voltage direct current bias test circuit, one output interface outputs a direct current signal corresponding to the alternating current RMS value, and one output interface outputs a direct current signal corresponding to the direct current bias representing the alternating current voltage. And carrying out calibration and verification through the obtained direct current signal.
It should be noted that, in order to make the analog-to-digital converter in a stable operation state, a peripheral circuit is provided, which includes a plurality of resistors and/or capacitors.
It can be understood that the types and the magnitudes of the resistors, the capacitors, and the like mentioned in the present embodiment are not limited; the above-mentioned embodiment is only one of many embodiments, the connection manner of the peripheral circuit is not limited, and the types and the resistance values of the resistors and the capacitors in the peripheral circuit are not limited, and the implementation manner of the resistors and the capacitors in the peripheral circuit can be determined according to specific implementation scenarios.
Furthermore, the measurement module mentioned in the present application shall also comprise a voltage source. The primary function of the voltage source is to provide the glucometer operating voltage. The output voltage = DAC output voltage and power supply chip fixed gain can be completed by one 10-bit DAC chip and one power supply chip, wherein the power supply chip fixed gain is 3.94, and the voltage requirements of different power supplies can be met by regulating and controlling the DAC output voltage.
The above detailed description is directed to an embodiment of a blood glucose meter testing device, and the present application further provides a corresponding embodiment of a blood glucose meter testing apparatus, which is used for solving the problem of efficiently testing parameters of a blood glucose meter. The application provides a blood glucose meter testing arrangement is applied to blood glucose meter test equipment. Also, the blood glucose meter test device also needs to include: the device comprises a controller and a test module. The controller is connected with one end of the test module and is used for detecting a parameter to be tested and connecting a test circuit corresponding to the parameter to be tested, wherein the parameter to be tested at least comprises one of alternating current frequency, alternating current RMS (root mean square) value and alternating current voltage direct current bias; the other end of the test module is connected with the glucometer and used for receiving alternating current signals of parameters to be tested of the glucometer and connecting the test module corresponding to the parameters to be tested so as to test the parameters to be tested, wherein the test module at least comprises one of an alternating current frequency test circuit, an alternating current RMS value test circuit and an alternating current voltage direct current bias test circuit. Because the test module comprises the test circuit corresponding to the parameter to be tested, when the parameter to be tested is tested, technicians are not required to use instruments such as a universal meter and a resistor in a matching manner, the parameter testing steps are simplified, the parameter testing time is reduced, and the testing efficiency is improved.
It is right above the utility model provides a blood glucose meter testing arrangement and equipment have carried out detailed introduction. The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
It is further noted that, in the present 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. Also, 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 phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
Claims (10)
1. A blood glucose meter testing device, comprising: a controller (10) and a test module (11);
the controller (10) is connected with one end of the test module (11) and is used for detecting a parameter to be tested and connecting a test circuit corresponding to the parameter to be tested, wherein the parameter to be tested at least comprises one of alternating current frequency, alternating current RMS (root mean square) value and alternating current voltage and direct current bias;
the other end of the test module (11) is connected with a blood glucose meter, and is used for receiving an alternating current signal of the parameter to be tested of the blood glucose meter and connecting the test circuit corresponding to the parameter to be tested, so as to test the parameter to be tested, wherein the test module (11) at least comprises one of an alternating current frequency test circuit (101), an alternating current RMS value test circuit (102) and an alternating current voltage direct current bias test circuit (103).
2. The blood glucose meter testing device of claim 1, wherein the alternating current frequency testing circuit (101) comprises: the circuit comprises a first operational amplifier, a hysteresis comparator, a first resistor, a second resistor and a first capacitor;
the non-inverting input end of the first operational amplifier is used as the input end of the alternating current frequency test circuit (101), the inverting input end of the first operational amplifier is grounded, the output end of the first operational amplifier is connected with the first end of the first capacitor, the second end of the first capacitor is connected with a common end formed by the inverting input end of the hysteresis comparator and the inverting input end of the comparator, the non-inverting input end of the hysteresis comparator is connected with a voltage source, the non-inverting input end of the comparator is connected with a common end formed by the first end of the first resistor and the second end of the second resistor, the second end of the first resistor is connected with the voltage source, the first end of the second resistor is connected with the output end of the comparator, and the output end of the hysteresis comparator and the output end of the comparator are both used as the output end of the alternating current frequency test circuit (101).
3. The glucose meter testing apparatus of claim 1 wherein the alternating RMS value testing circuit (102) comprises: the second operational amplifier, the third operational amplifier and the DC conversion chip;
the non-inverting input end of the second operational amplifier is used as the input end of the alternating current RMS value test circuit (102), the inverting input end of the second operational amplifier is connected with the output end of the second operational amplifier, the output end of the second operational amplifier is connected with the first input end of the DC conversion chip, the second input end of the DC conversion chip is grounded, the output end of the DC conversion chip is connected with a common end formed by the non-inverting input end of the third operational amplifier and the inverting input end of the third operational amplifier, and the output end of the third operational amplifier is used as the output end of the alternating current RMS value test circuit (102).
4. The glucose meter testing device of claim 1, wherein the ac voltage dc bias test circuit (103) comprises: the fourth operational amplifier, the fifth operational amplifier and the second-order RC low-pass filter;
the non-inverting input end of the fourth operational amplifier is used as the input end of the alternating voltage direct current bias test circuit (103), the inverting input end of the fourth operational amplifier is connected with the output end of the fourth operational amplifier, the output end of the fourth operational amplifier is connected with the input end of the second-order RC low-pass filter, the output end of the second-order RC low-pass filter is connected with the non-inverting input end of the fifth operational amplifier, the inverting input end of the fifth operational amplifier is connected with the output end of the fifth operational amplifier, and the output end of the fifth operational amplifier is used as the output end of the alternating voltage direct current bias test circuit (103).
5. The glucose meter testing device of claim 4, wherein the second order RC low pass filter comprises: a third resistor, a fourth resistor, a second capacitor and a third capacitor;
the first end of the third resistor is used as the input end of the second-order RC low-pass filter, the second end of the third resistor is connected with a common end formed by the first end of the fourth resistor and the first end of the second capacitor, the second end of the second capacitor is connected with the second end of the third capacitor, the first end of the third capacitor is connected with the second end of the fourth resistor, and the second end of the fourth resistor is used as the output end of the second-order RC low-pass filter.
6. The blood glucose meter testing device of claim 2, wherein the alternating current frequency testing circuit (101) further comprises: a fifth resistor;
the first end of the fifth resistor is connected with a common end formed by the second end of the first capacitor and the inverting input end of the hysteresis comparator, and the second end of the fifth resistor is connected with the voltage source.
7. The blood glucose meter testing device of claim 1, wherein the testing module (11) further comprises: an analog-to-digital converter;
the analog-to-digital converter comprises a plurality of input interfaces and a plurality of output interfaces, wherein one input interface is connected with the output end of the alternating current RMS value testing circuit (102), one input interface is connected with the output end of the alternating current voltage direct current offset testing circuit (103), one output interface outputs a direct current signal corresponding to the alternating current RMS value, and one output interface outputs a direct current signal corresponding to the alternating current voltage direct current offset.
8. The blood glucose meter testing device of claim 7, wherein the testing module (11) further comprises: a calibration verification circuit (104);
the calibration verification circuit (104) comprises: the digital-to-analog converter comprises a first digital-to-analog converter, a second digital-to-analog converter and a plurality of current sources;
the input end of the first digital-to-analog converter is connected with the output interface of the analog-to-digital converter, the input end of the second digital-to-analog converter is connected with the output interface of the analog-to-digital converter, the output end of the first digital-to-analog converter is connected with one of the current sources, and the output end of the second digital-to-analog converter is connected with one of the current sources.
9. The blood glucose meter testing device of claim 8, wherein the current source comprises: a sixth operational amplifier, an MOS tube and a multi-way switch;
the non-inverting input end of the sixth operational amplifier is used as the input end of the current source, the inverting input end of the sixth operational amplifier is connected with the source electrode of the MOS tube, the output end of the sixth operational amplifier is connected with the grid electrode of the MOS tube, the drain electrode of the MOS tube is used as the first output end of the current source and is connected with the blood glucose meter, and the source electrode of the MOS tube is connected with the multi-way switch.
10. A blood glucose meter testing device, comprising: the blood glucose meter test device of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221717933.9U CN218122122U (en) | 2022-07-05 | 2022-07-05 | Glucometer testing device and equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221717933.9U CN218122122U (en) | 2022-07-05 | 2022-07-05 | Glucometer testing device and equipment |
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| Publication Number | Publication Date |
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| CN218122122U true CN218122122U (en) | 2022-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202221717933.9U Active CN218122122U (en) | 2022-07-05 | 2022-07-05 | Glucometer testing device and equipment |
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| CN (1) | CN218122122U (en) |
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