Glucometer test circuit and glucometer test system

By using relay control in the drive and test branches to simulate the insertion of blood glucose test strips and the dripping of blood, the problem of low efficiency in blood glucose meter pressure testing is solved, and an automated and efficient testing process is achieved.

CN224231785UActive Publication Date: 2026-05-12SHANGHAI ANKELIAN TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI ANKELIAN TECH CO LTD
Filing Date
2025-04-16
Publication Date
2026-05-12

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Abstract

The utility model discloses a glucometer test circuit and a glucometer detection system. The circuit comprises a driving branch and a testing branch, the driving branch is configured to simulate that a blood glucose test strip is inserted into a blood glucose meter or not inserted into the blood glucose meter, and the testing branch is configured to simulate that blood drops on the blood glucose test strip or blood does not drop on the blood glucose test strip. According to the glucometer test circuit, the process that the blood glucose test paper is inserted into or pulled out of the glucometer and the state that whether blood drips on the blood glucose test paper or not can be simulated by arranging the driving branch circuit and the test branch circuit, and therefore the operation of inserting and pulling the test paper and the operation of dripping the blood on the test paper do not need to be actually executed; and the pressure test can be completed only by controlling the corresponding branches, so that the efficiency of the pressure test in the process of using the glucometer is greatly improved.
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Description

Technical Field

[0001] This application relates to the field of electronic circuit technology, specifically to a blood glucose meter testing circuit and a blood glucose meter testing system. Background Technology

[0002] Currently, the quality requirements for medical measuring instruments such as blood glucose meters are increasing, leading to a greater demand for stress testing. For blood glucose meters, stress testing primarily covers the insertion and removal of the test strip from the slot and the actual measurement of blood glucose levels, typically triggered by a drop of blood onto the test strip. For each blood glucose meter, the number of stress tests is generally 500 or more. This level of testing consumes significant manpower and time, resulting in low efficiency. Utility Model Content

[0003] This application provides a blood glucose meter testing circuit and a blood glucose meter testing system.

[0004] The blood glucose meter testing circuit according to the embodiments of this application includes a driving branch and a testing branch. The driving branch is configured to simulate blood glucose test strips being inserted into the blood glucose meter or not being inserted into the blood glucose meter, and the testing branch is configured to simulate blood dripping onto the blood glucose test strip or blood not dripping onto the blood glucose test strip.

[0005] Thus, the blood glucose meter testing circuit in this application can simulate the process of inserting or removing the blood glucose test strip from the blood glucose meter and the state of whether blood is dripped onto the blood glucose test strip by setting separate drive branches and test branches. Therefore, it is not necessary to actually perform the operation of inserting or removing the test strip and dripping blood onto the test strip. The stress test can be completed by controlling the corresponding branches, thereby greatly improving the efficiency of stress testing during the use of the blood glucose meter.

[0006] In some embodiments, the drive branch includes a first relay configured to control the operating state of the test strip slot of the blood glucose meter to simulate whether a blood glucose test strip is inserted into the blood glucose meter or not.

[0007] Thus, the drive branch in this application controls the working state of the test strip slot by configuring a relay, so as to simulate the insertion or removal of the blood glucose test strip.

[0008] In some embodiments, the blood glucose meter's test strip slot includes a first contact group and a second contact group, wherein the first contact group is connected to a first terminal of the first relay, and the second contact group is connected to a second terminal of the first relay.

[0009] In some implementations, when the first relay is on, the test strip slot is configured to simulate that the blood glucose test strip is not inserted into the blood glucose meter; when the first relay is off, the test strip slot is configured to simulate that the blood glucose test strip is inserted into the blood glucose meter.

[0010] Thus, by connecting the two ends of the first relay to different contact groups of the test strip slot, this application can control the working state of the test strip slot by using its own on / off state, thereby indirectly simulating the insertion or removal state of the blood glucose test strip.

[0011] In some embodiments, the test branch includes a second relay configured to control the operating state of the test contacts of the blood glucose meter to simulate blood dripping onto the blood glucose test strip or blood not dripping onto the blood glucose test strip.

[0012] Thus, the test branch in this application controls the working state of the test contacts by configuring relays, so as to simulate whether blood is dripped onto the blood glucose test strip.

[0013] In some embodiments, the blood glucose meter's test contacts include a third contact and a fourth contact, the third contact being connected to a first terminal of the second relay, and the fourth contact being connected to a second terminal of the second relay.

[0014] In some implementations, when the second relay is on, the test contact is configured to simulate a drop of blood onto the blood glucose test strip; when the second relay is off, the test contact is configured to simulate no drop of blood onto the blood glucose test strip.

[0015] Thus, by connecting the two ends of the second relay to different contacts in the test contacts, this application can control the working state of the test contacts by using its own on / off state, thereby indirectly simulating whether blood is dripped onto the blood glucose test strip.

[0016] The blood glucose meter testing system in this application includes a control device and one or more blood glucose meter testing circuits as described in the above embodiments. The control device is connected to the drive branch and the test branch in the blood glucose meter testing circuit.

[0017] Thus, the blood glucose meter testing system in this application can also use a single control device to control one or more blood glucose meter testing circuits, thereby enabling stress testing of a single blood glucose meter or stress testing of multiple blood glucose meters simultaneously, effectively improving the efficiency of stress testing per unit time.

[0018] In some embodiments, the control device is connected to a first relay in the drive branch, and controls the first relay to turn on or off when the first relay receives a control signal sent by the control device.

[0019] In some embodiments, the control device is connected to a second relay in the test branch, and controls the second relay to turn on or off when the second relay receives a control signal sent by the control device.

[0020] Thus, this application can also use a control device to directly control the relays in each drive branch and test branch, thereby automating the pressure test of the blood glucose meter and effectively improving the efficiency of the pressure test.

[0021] Additional aspects and advantages of embodiments of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of embodiments of this application. Attached Figure Description

[0022] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein:

[0023] Figure 1 This is one of the schematic diagrams of the module structure of the blood glucose meter testing circuit in the embodiments of this application;

[0024] Figure 2 This is a second schematic diagram of the module structure of the blood glucose meter testing circuit in the embodiments of this application;

[0025] Figure 3 This is a schematic diagram of the modular structure of the blood glucose meter testing system in the embodiments of this application;

[0026] Figure 4 This is a schematic diagram of the process of performing a stress test on the blood glucose meter testing system in the embodiments of this application.

[0027] Wherein: 10, blood glucose meter test circuit; 11, drive branch; 111, first relay; 12, test branch; 121, second relay; 20, blood glucose meter; 21, test strip slot; 211, first contact group; 212, second contact group; 22, test contact; 221, third contact; 222, fourth contact. Detailed Implementation

[0028] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the embodiments of this application, and should not be construed as limiting the embodiments of this application.

[0029] Please see Figure 1 The blood glucose meter test circuit 10 in this application embodiment includes a drive branch 11 and a test branch 12. The drive branch 11 is configured to simulate blood glucose test strips being inserted into the blood glucose meter 20 or not being inserted into the blood glucose meter 20. The test branch 12 is configured to simulate blood dripping onto the blood glucose test strip or blood not dripping onto the blood glucose test strip.

[0030] Specifically, in current related technologies, the quality requirements for medical measuring instruments such as blood glucose meters are becoming increasingly stringent, and the demand for stress testing of such measuring instruments is also increasing.

[0031] The blood glucose meter 20 is a medical testing instrument used to detect blood glucose levels. It is generally used in conjunction with blood glucose test strips. The blood glucose test strip has a conductive layer, which is laser-polished and coated with a chemical coating containing glucose oxidase or glucose dehydrogenase at its end. When blood is dropped onto the chemical coating on the blood glucose test strip, the glucose in the blood reacts chemically with the glucose oxidase or glucose dehydrogenase. Simultaneously, the conductive layer generates an electric current. The blood glucose meter 20 detects this current to monitor blood glucose levels. Therefore, using the blood glucose meter 20 generally involves two steps: with the meter powered on, the first step is to insert the test strip into the corresponding test strip slot 21 on the meter; the second step is to drop blood onto the corresponding position on the test strip. The second step triggers the blood glucose detection process of the blood glucose meter 20.

[0032] For the blood glucose meter 20, the stress test mainly covers two parts: first, the insertion and removal process of the blood glucose test strip in the test strip slot 21; and second, the actual measurement process of the blood glucose value. For each blood glucose meter 20, the aforementioned stress test is typically performed 500 times or more. This volume of stress testing consumes a significant amount of manpower and time, resulting in low testing efficiency. Therefore, this application proposes a blood glucose meter testing circuit 10 to improve the efficiency of the stress test for the blood glucose meter 20.

[0033] Specifically, the blood glucose meter testing circuit 10 proposed in this application includes two parts: a drive branch 11 and a test branch 12. Both branches are directly electrically connected to the blood glucose meter 20. The drive branch 11 is mainly responsible for simulating whether the blood glucose test strip is inserted into the blood glucose meter 20, while the test branch 12 is mainly responsible for simulating whether blood has dripped onto the corresponding position on the blood glucose test strip. Considering the actual usage steps of the blood glucose meter 20, the stress test method performed by the above-mentioned blood glucose meter testing circuit 10 is as follows: when the blood glucose meter 20 is powered on, the drive branch 11 first simulates the insertion of the blood glucose test strip into the blood glucose meter 20, and then the test branch 12 simulates blood dripping onto the corresponding position on the blood glucose test strip to trigger the blood glucose meter 20 to detect blood glucose. After the blood glucose meter 20 completes the detection, the drive branch 11 simulates the absence of the blood glucose test strip in the blood glucose meter 20 and restores the state of the test branch 12, thereby restoring the state to the state where blood has not dripped onto the corresponding position on the blood glucose test strip. This completes a single test during the stress test process for the blood glucose meter 20. In this way, the tester does not need to actually insert or remove the blood glucose test strip or drip blood. They only need to use the drive branch 11 and the test branch 12 to simulate the above-mentioned process of inserting or removing the blood glucose test strip and dripping blood to quickly complete a single test for the blood glucose meter 20, thereby significantly improving the execution efficiency of the stress test of the blood glucose meter 20.

[0034] Thus, the blood glucose meter test circuit 10 in this application can simulate the process of inserting or removing the blood glucose test strip from the blood glucose meter 20 and the state of whether blood is dripped onto the blood glucose test strip by setting the drive branch 11 and the test branch 12 respectively. Therefore, there is no need to actually perform the operation of inserting or removing the test strip and dripping blood onto the test strip. The stress test can be completed by controlling the corresponding branch, thereby greatly improving the efficiency of stress testing during the use of the blood glucose meter 20.

[0035] Please see Figure 2 In some embodiments, the drive branch 11 includes a first relay 111, which is configured to control the working state of the test strip slot 21 of the blood glucose meter 20 to simulate whether the blood glucose test strip is inserted into the blood glucose meter 20 or not.

[0036] In some embodiments, the test strip slot 21 of the blood glucose meter 20 includes a first contact group 211 and a second contact group 212. The first contact group 211 is connected to a first terminal of the first relay 111, and the second contact group 212 is connected to a second terminal of the first relay 111.

[0037] In some embodiments, when the first relay 111 is turned on, the test strip slot 21 is configured to simulate that the blood glucose test strip is not inserted into the blood glucose meter 20; when the first relay 111 is turned off, the test strip slot 21 is configured to simulate that the blood glucose test strip is inserted into the blood glucose meter 20.

[0038] Specifically, for the driving branch 11 to simulate whether the blood glucose test strip is inserted into the blood glucose meter 20 or not, based on the above implementation method, the driving branch 11 includes a first relay 111. The switching between the on and off states of the first relay 111 can correspond to the switching between the simulated states of the blood glucose test strip being inserted into the blood glucose meter 20 or not.

[0039] Regarding the working principle of blood glucose meters and test strips, generally, blood glucose test strips have uneven areas, while the test strip slot of the blood glucose meter has multiple raised locking tabs. When the test strip is inserted into the slot, these locking tabs will either be in a released or pressed state according to the shape of the uneven area on the test strip. The connecting pieces corresponding to these locking tabs will then be in a connected or disconnected state, thus detecting whether the test strip is inserted into the blood glucose meter's slot. Conversely, when the test strip is removed, all the locking tabs in the test strip slot will return to their released state, and the connecting pieces corresponding to these locking tabs will return to their disconnected state, thus detecting whether the test strip has been removed from the blood glucose meter's slot.

[0040] Based on the principles described above, please refer to the following example for further illustration. Figure 2 The circuit board corresponding to the test strip slot 21 of the blood glucose meter 20 includes two contact groups. The first contact group 211 corresponds to slot button A, and the second contact group 212 corresponds to slot button B (slot buttons A and B are not shown in the diagram). When both slot buttons A and B are in the released state, the electrical connection between the first contact group 211 and the second contact group 212 is conductive, corresponding to the state where the blood glucose test strip is not inserted into the test strip slot 21 in practical application. When slot button A is in the released state and slot button B is in the pressed state, the electrical connection between the first contact group 211 and the second contact group 212 is disconnected, corresponding to the state where the blood glucose test strip is inserted into the test strip slot 21 in practical application.

[0041] Based on the above operating principle, when using the first relay 111 to simulate whether the blood glucose meter 20 is inserted or not, this can be achieved by connecting or disconnecting the first contact group 211 and the second contact group 212. For example, the first pin of the first relay 111 is connected to all contacts in the first contact group 211, and the second pin of the first relay 111 is connected to all contacts in the second contact group 212. When the first relay 111 is in the ON state, the first contact group 211 and the second contact group 212 are connected, thus simulating the state when the blood glucose test strip is not inserted into the blood glucose meter 20. Conversely, when the first relay 111 is in the OFF state, the first contact group 211 and the second contact group 212 are disconnected, thus simulating the state when the blood glucose test strip is inserted into the blood glucose meter 20.

[0042] Thus, the drive branch 11 in this application controls the working state of the test strip slot 21 by configuring a relay, thereby simulating the insertion or removal of the blood glucose test strip. Furthermore, this application connects the two ends of the first relay 111 to different contact groups of the test strip slot 21, enabling the control of the working state of the test strip slot 21 by its own on / off switching, thereby indirectly simulating the insertion or removal of the blood glucose test strip.

[0043] In some implementations, the test branch 12 includes a second relay 121 configured to control the operating state of the test contact 22 of the blood glucose meter 20 to simulate blood droplets on the blood glucose test strip or blood droplets not on the blood glucose test strip.

[0044] In some embodiments, the test contact 22 of the blood glucose meter 20 includes a third contact 221 and a fourth contact 222, wherein the third contact 221 is connected to the first end of the second relay 121 and the fourth contact 222 is connected to the second end of the second relay 121.

[0045] In some implementations, when the second relay 121 is turned on, the test contact 22 is configured to simulate a drop of blood on the blood glucose test strip; when the second relay 121 is turned off, the test contact 22 is configured to simulate no drop of blood on the blood glucose test strip.

[0046] Specifically, for the test branch 12 to simulate the corresponding area for whether blood is dripped onto the blood glucose test strip, based on the above implementation method, the drive branch 11 includes a second relay 121. The switching between the on and off states of the second relay 121 can correspond to the state switching of simulating blood dripping onto the blood glucose test strip or blood not dripping onto the blood glucose test strip.

[0047] As further exemplified, please continue to refer to Figure 2 The blood glucose meter 20 includes two test contacts 22, a third contact 221 and a fourth contact 222. The conductive layer of the blood glucose test strip is connected between the third contact 221 and the fourth contact 222. When performing blood glucose testing, if blood is not dripped onto the corresponding area of ​​the blood glucose test strip, the resistance between the third contact 221 and the fourth contact 222 is extremely high, which can be regarded as an open circuit. When blood is dripped onto the corresponding area of ​​the blood glucose test strip, the third contact 221 and the fourth contact 222 are connected. The blood glucose meter 20 can indirectly measure whether the blood glucose value is too high or too low by detecting the magnitude of the current between the third contact 221 and the fourth contact 222.

[0048] Based on the above operating principle, when using the second relay 121 to simulate whether blood has dripped onto the blood glucose test strip, this can be achieved by connecting or disconnecting the third contact 221 and the fourth contact 222. For example, the first pin of the second relay 121 is connected to the third contact 221, and the second pin of the second relay 121 is connected to the fourth contact 222. When the second relay 121 is in the ON state, the third contact 221 and the fourth contact 222 are connected, thus simulating the state of blood dripping onto the blood glucose test strip. Conversely, when the second relay 121 is in the OFF state, the third contact 221 and the fourth contact 222 are disconnected, thus simulating the state of no blood dripping onto the blood glucose test strip.

[0049] Please see Figure 3 The blood glucose meter testing system in this application includes a control device and one or more blood glucose meter testing circuits 10 as described in the above embodiments. The control device is connected to the drive branch 11 and the test branch 12 in the blood glucose meter testing circuit 10.

[0050] Specifically, the blood glucose meter testing system in this application is generally based on the blood glucose meter testing circuit 10 in the above-described embodiments. Each blood glucose meter testing system includes at least one set of blood glucose meter testing circuits 10, and each set of blood glucose meter testing circuits 10 is used to perform a stress test on a blood glucose meter 20. In addition, the blood glucose meter testing system also includes a control device. The main function of this control device is to automatically control each blood glucose meter testing circuit 10 to achieve a stress test on at least one blood glucose meter 20. Furthermore, while performing the stress test, it can also obtain the current working status of the drive branch 11 and test branch 12 by connecting with the drive branch 11 and test branch 12 in each blood glucose meter testing circuit 10, thereby further determining whether the stress test was successful and performing data statistics. Please refer to [link / reference] for details. Figure 3 , Figure 3An exemplary blood glucose meter testing system is shown, which includes four sets of blood glucose meter testing circuits capable of simultaneously performing stress tests on four blood glucose meters.

[0051] Generally, the control device described above is a computer device, and the computer device is electrically connected to the drive branch 11 and test branch 12 in each blood glucose meter test circuit 10 to enable communication.

[0052] In some embodiments, the control device is connected to the first relay 111 in the drive branch 11, and controls the first relay 111 to turn on or off when the first relay 111 receives a control signal sent by the control device.

[0053] In some embodiments, the control device is connected to the second relay 121 in the test branch 12, and controls the second relay 121 to turn on or off when the second relay 121 receives a control signal sent by the control device.

[0054] Specifically, based on the above embodiments, for each blood glucose meter testing circuit 10 connected to the control device, exemplarily, the first relay 111 in the drive branch 11 is electrically connected to the control device, and the second relay 121 in the testing circuit 10 is also electrically connected to the control device. Based on the usage steps of the blood glucose meter 20, in the initial state, the default state of the first relay 111 in the drive branch 11 can be set to the on state, corresponding to the default state that the blood glucose test strip is not inserted into the blood glucose meter 20. Simultaneously, in the initial state, the default state of the second relay 121 in the testing branch 12 can be set to the off state, corresponding to the default state that no blood has dripped onto the corresponding area of ​​the blood glucose test strip.

[0055] When testing a blood glucose meter 20 using the aforementioned blood glucose meter testing system, the control device controls the switching of the on / off states of the first relay 111 and the second relay 121 by sending control commands to them, thereby simulating actions such as inserting the blood glucose test strip into the blood glucose meter 20 and dripping blood onto the corresponding area of ​​the blood glucose test strip.

[0056] For example, please refer to Figure 4 , Figure 4An exemplary execution flow is shown for performing a stress test on a blood glucose meter 20 using a control device in a blood glucose meter testing system. This flow is executed by the control device. First, at the start of the stress test, the control device initializes and debugs its serial communication connection with the first relay 111 and the second relay 121 to ensure normal communication between the control device and the two sets of relays during the stress test. Then, the control device initializes the current operating states of the first relay 111 and the second relay 121. After initialization, the states of the first relay 111 and the second relay 121 are both set to the default initial state, at which point the first relay 111 is turned on and the second relay 121 is turned off. The state initialization is completed when the control device detects that the first relay 111 and the second relay 121 are in the default initial state.

[0057] Next, the control device sends a control command to the first relay 111 to disconnect the first relay 111, thus simulating the process of inserting the blood glucose test strip into the blood glucose meter 20. Then, the control device checks the operating status of the blood glucose meter 20 to determine if the meter is currently in the state where the blood glucose test strip is inserted. If the detection result is yes, the control device determines whether to enter the stage of simulating blood dripping onto the blood glucose test strip based on its current operating status. If it is determined to enter the stage of simulating blood dripping onto the blood glucose test strip, the control device sends a control command to the second relay 121 to turn on the second relay 121, thus simulating the process of blood dripping onto the corresponding area of ​​the blood glucose test strip. Then, the control device checks the operating status of the blood glucose meter 20, firstly to check whether the process of simulating blood dripping onto the corresponding area of ​​the blood glucose test strip was successfully executed, and secondly to check whether the blood glucose meter 20 measured a blood glucose value when the process of blood dripping onto the corresponding area of ​​the blood glucose test strip was successfully simulated. If both detection results are yes, the control device determines the result of this test as passed and saves the result for subsequent test result statistics.

[0058] Specifically, in the above embodiment, for the four tests—① the control device detects the working status of the blood glucose meter 20, ② determines whether to enter the stage of simulating blood dripping onto the blood glucose test strip based on its current operating status, ③ detects whether the process of simulating blood dripping onto the corresponding area of ​​the blood glucose test strip is successfully executed, and ④ detects whether the blood glucose meter 20 has successfully measured a blood glucose value when the process of simulating blood dripping onto the corresponding area of ​​the blood glucose test strip is successfully simulated—if any one of the test results is negative, the control device determines the result of the current test as failing and ends the current test, and then saves the above results for subsequent test result statistics.

[0059] In this way, by setting up the control device, the various blood glucose meter test circuits 10 connected to it can be automatically controlled through the above-mentioned execution process, thereby realizing pressure detection for one or more blood glucose meters 20, which greatly improves the efficiency of performing pressure tests on blood glucose meters 20.

[0060] In the description of this specification, the references to terms such as "some embodiments," "in one example," "exemplarily," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0061] Any process or method described in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing a particular logical function or process, and the scope of the preferred embodiments of this application includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the function involved, as will be understood by those skilled in the art to which embodiments of this application pertain.

[0062] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A blood glucose meter testing circuit, characterized in that, The circuit includes a drive branch and a test branch. The drive branch is configured to simulate inserting a blood glucose test strip into the blood glucose meter or not inserting it into the blood glucose meter. The test branch is configured to simulate blood dripping onto the blood glucose test strip or not dripping onto the blood glucose test strip.

2. The circuit according to claim 1, characterized in that, The drive branch includes a first relay, which is configured to control the working state of the test strip slot of the blood glucose meter to simulate whether the blood glucose test strip is inserted into the blood glucose meter or not.

3. The circuit according to claim 2, characterized in that, The blood glucose meter's test strip slot includes a first contact group and a second contact group. The first contact group is connected to a first terminal of the first relay, and the second contact group is connected to a second terminal of the first relay.

4. The circuit according to claim 3, characterized in that, When the first relay is on, the test strip slot is configured to simulate that the blood glucose test strip is not inserted into the blood glucose meter; when the first relay is off, the test strip slot is configured to simulate that the blood glucose test strip is inserted into the blood glucose meter.

5. The circuit according to claim 1, characterized in that, The test branch includes a second relay, which is configured to control the working state of the test contacts of the blood glucose meter to simulate blood dripping onto the blood glucose test strip or blood not dripping onto the blood glucose test strip.

6. The circuit according to claim 5, characterized in that, The blood glucose meter has a test contact including a third contact and a fourth contact. The third contact is connected to the first end of the second relay, and the fourth contact is connected to the second end of the second relay.

7. The circuit according to claim 6, characterized in that, When the second relay is on, the test contact is configured to simulate a drop of blood on the blood glucose test strip; when the second relay is off, the test contact is configured to simulate no drop of blood on the blood glucose test strip.

8. A blood glucose meter testing system, characterized in that, The system includes a control device and one or more blood glucose meter testing circuits as described in any one of claims 1-7, wherein the control device is connected to the drive branch and the test branch in the blood glucose meter testing circuit.

9. The system according to claim 8, characterized in that, The control device is connected to the first relay in the drive branch, and controls the first relay to turn on or off when the first relay receives a control signal sent by the control device.

10. The system according to claim 8, characterized in that, The control device is connected to the second relay in the test branch. When the second relay receives a control signal sent by the control device, it controls the second relay to turn on or off.