Resistance detection method, device and equipment and computer readable storage medium

Abstract

The invention discloses a resistance detection method, device and equipment and a computer readable storage medium, and belongs to the technical field of testing. The resistance detection method is applied to a resistance detection device, the resistance detection device is connected with an automatic test machine, the automatic test machine is electrically connected with a test board, the test board comprises a first polarity relay, a second polarity relay and resistors to be detected, and the resistance detection method comprises the following steps: determining a current resistor to be detected from the resistors to be detected according to a preset measurement time sequence; a first polarity relay and a second polarity relay corresponding to the current to-be-tested resistor are controlled to be closed through the automatic testing machine, so that the automatic testing machine is electrically connected with the two ends of the current to-be-tested resistor; controlling the automatic testing machine to measure the current to-be-tested resistor for multiple times to obtain a measured value of the current to-be-tested resistor; calculating a repetition precision capability coefficient of the current to-be-measured resistor according to the measured value; and determining the working state of the current to-be-measured resistor according to the repetition precision capability coefficient.

Description

Technical Field

[0001] The present application relates to the field of testing technology, and in particular to a resistance detection method, device, equipment and computer-readable storage medium. Background Art

[0002] In order to verify the protection mechanism of a MEMS (Micro-ElectroMechanical System) sensor heater under overvoltage, undervoltage and overcurrent loss under different impedance conditions, it is necessary to meet the test conditions of setting DCR (DC-Resistance) with different resistance values ​​on VDD and VSS. To ensure the accuracy of the test and the accuracy of the test results, the actual resistance values ​​of all DCRs need to be measured before the test begins, and the repeatability error must be within 5‰. According to the test results, the DCR whose error does not meet the requirements should be modified and adjusted.

[0003] In the related art, the resistance value of DCR is generally measured manually. Each time a test is performed, the four test leads of a multimeter need to touch a test point once. Different contact conditions of the test leads will affect the measured value of the resistance, thereby increasing the test error. At the same time, it is necessary to manually record each measured value to determine whether the resistance value meets the test requirements. When the number of DCRs to be tested is large, it obviously takes a lot of time to test and compare data to determine whether each DCR has an abnormality. Summary of the invention

[0004] The main purpose of the present application is to provide a resistance detection method, device, equipment and computer-readable storage medium, aiming to solve the technical problem of how to overcome the large test error of manual resistance testing and the inability to accurately and quickly determine whether the resistance to be tested is abnormal.

[0005] To achieve the above object, the present application provides a resistance detection method, which is applied to a resistance detection device, wherein the resistance detection device is connected to an automatic test machine, and the automatic test machine is electrically connected to a test board, wherein the test board includes a first polarity relay, a second polarity relay, and a resistor to be tested, and the resistance detection method includes:

[0006] Determine the current resistance to be measured from the resistance to be measured according to a preset measurement sequence;

[0007] Controlling the first polarity relay and the second polarity relay corresponding to the current resistance to be tested to close by the automatic test machine, so that the automatic test machine is electrically connected to both ends of the current resistance to be tested;

[0008] Controlling the automatic testing machine to measure the current resistance to be measured multiple times to obtain a measurement value of the current resistance to be measured;

[0009] Calculate the repeatability coefficient of the resistor to be measured according to the measured value;

[0010] The working state of the current resistor to be measured is determined according to the repeatability accuracy coefficient.

[0011] In one embodiment, after the step of determining whether the current resistance to be measured is abnormal according to the repeatability accuracy coefficient, the resistance detection method further includes:

[0012] Return to the step of determining the current resistor to be measured from the resistors to be measured according to the preset measurement sequence until the working states of all the resistors to be measured in the test board are determined.

[0013] In addition, to achieve the above-mentioned purpose, the present application also provides a resistance detection system, the resistance detection system comprising: a resistance detection device, an automatic testing machine and a testing board;

[0014] The resistance detection device is connected to the automatic test machine, the automatic test machine is electrically connected to the test board, and the test board includes:

[0015] The resistance to be measured;

[0016] A first polarity relay, wherein a first end of the first polarity relay is electrically connected to a first polarity excitation end and a first polarity measurement end of the automatic test machine, a controlled end of the first polarity relay is electrically connected to a first polarity enabling end of the automatic test machine, and a second end of the first polarity relay is electrically connected to a first polarity end of the resistor to be tested;

[0017] A second polarity relay, wherein a second end of the second polarity relay is electrically connected to a second polarity excitation end and a second polarity measurement end of the automatic test machine, a controlled end of the second polarity relay is electrically connected to a second polarity enable end of the automatic test machine, and a second end of the second polarity relay is electrically connected to a second polarity end of the resistor to be tested;

[0018] The resistance detection device is used to execute the resistance detection method as described above.

[0019] In one embodiment, the number of the resistors to be measured is the same as the number of the first polarity relays.

[0020] In one embodiment, the resistor to be measured includes a first polarity resistor and a second polarity resistor.

[0021] In one embodiment, the test board further comprises:

[0022] A product to be tested, wherein the first polarity end of the product to be tested is electrically connected to the second polarity end of the first polarity resistor, and the second polarity end of the product to be tested is electrically connected to the second polarity end of the second polarity resistor.

[0023] In one embodiment, the number of the second polarity relays is twice the number of the products to be tested.

[0024] In addition, to achieve the above-mentioned purpose, the present application also provides a resistance detection device, the resistance detection device is connected to an automatic test machine, the automatic test machine is electrically connected to a test board, the test board includes a first polarity relay, a second polarity relay and a resistance to be measured, and the resistance detection device includes:

[0025] A control module, the control module is used to determine the current resistance to be measured from the resistance to be measured according to a preset measurement sequence;

[0026] The control module is also used to control the first polarity relay and the second polarity relay corresponding to the current resistance to be tested to close through the automatic test machine, so that the automatic test machine is electrically connected to both ends of the current resistance to be tested;

[0027] The control module is also used to control the automatic test machine to measure the current resistance to be measured multiple times to obtain the measurement value of the current resistance to be measured;

[0028] A processing module, the processing module is used to calculate the repeatability coefficient of the resistor to be measured according to the measured value;

[0029] The processing module is further configured to determine a working state of the resistor to be tested according to the repeatability coefficient.

[0030] In addition, to achieve the above-mentioned purpose, the present application also provides a resistance detection device, which includes: a memory, a processor, and a computer program stored in the memory and executable on the processor, and when the computer program is executed by the processor, the resistance detection method described above is implemented.

[0031] In addition, to achieve the above-mentioned purpose, the present application also provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the resistance detection method as described above is implemented.

[0032] The present application proposes a resistance detection method, device, equipment and computer-readable storage medium. The resistance detection method is applied to a resistance detection device, the resistance detection device is connected to an automatic test machine, the automatic test machine is electrically connected to a test board, the test board includes a first polarity relay, a second polarity relay and a resistor to be measured, and the resistance detection method includes: determining a current resistor to be measured from the resistors to be measured according to a preset measurement sequence; controlling the first polarity relay and the second polarity relay corresponding to the current resistor to be measured to be closed by the automatic test machine, so that the automatic test machine is electrically connected to both ends of the current resistor to be measured; controlling the automatic test machine to measure the current resistor to be measured multiple times to obtain the measured value of the current resistor to be measured; calculating the repeatability accuracy capability coefficient of the current resistor to be measured according to the measured value; and determining the working state of the current resistor to be measured according to the repeatability accuracy capability coefficient. The present application realizes automatic multiple measurements to obtain the measured value of the resistance to be measured through a resistance detection system composed of a resistance detection device, an automatic test machine and a test board, and then calculates the repeatability accuracy capability coefficient based on the measured value to determine whether the working state of the resistance to be measured is normal or abnormal, thereby avoiding the test error existing in the related art when measuring DCR and relying on manual detection, saving a lot of time required for manual testing and data comparison, and being able to accurately and quickly determine whether the resistance to be measured is abnormal. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only part of the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 A schematic diagram of the circuit principle of Kelvin four-wire measurement involved in an embodiment of the present application;

[0035] Figure 2 A schematic diagram of a resistance detection method provided in an embodiment of the present application;

[0036] Figure 3 A schematic diagram of an application scenario involved in a resistance detection method provided in an embodiment of the present application;

[0037] Figure 4 A schematic diagram of the structure of a resistance detection system provided in an embodiment of the present application;

[0038] Figure 5 A schematic diagram of the structure of a resistance detection device provided in an embodiment of the present application;

[0039] Figure 6 A schematic diagram of the structure of a resistance detection device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0040] In the following description, specific details such as specific system structures, technologies, etc. are proposed for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the embodiments of the present application can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from hindering the description of the embodiments of the present application.

[0041] In order to verify the protection mechanism of a MEMS (Micro-ElectroMechanical System) sensor heater under overvoltage, undervoltage and overcurrent loss under different impedance conditions, it is necessary to meet the test conditions of setting DCR (DC-Resistance) with different resistance values ​​on VDD and VSS. To ensure the accuracy of the test and the accuracy of the test results, the actual resistance values ​​of all DCRs need to be measured before the test begins, and the repeatability error must be within 5‰. According to the test results, the DCR whose error does not meet the requirements should be modified and adjusted.

[0042] In the related art, the resistance value of DCR is generally measured manually. Each time a test is performed, the four test leads of the multimeter need to touch the test point once (accurate small resistance measurement requires Kelvin Four-Terminal Sensing, also known as four-wire measurement (4T Sensing), which effectively eliminates the interference of wire resistance on the measurement result by using four wires to transmit current and measure voltage respectively. The test schematic diagram is shown in the figure below. Figure 1 As shown in the figure, different contact conditions of the test leads will also affect the measured resistance value, thereby increasing the test error. At the same time, it is necessary to manually record each measured value to determine whether the resistance value meets the test requirements. For example, if 8 devices under test (DUTs) need to be tested at the same time, each DUT is connected to a DCR with 23 resistance values, of which R_VDD has 11 resistance values ​​and R_VSS has 12 resistance values, for a total of 184 DCRs to be tested. When there are a large number of DCRs to be tested, manual testing obviously requires a lot of time to test and compare data to determine whether each DCR has an abnormality.

[0043] Based on this, the embodiments of the present application provide a resistance detection method, device, equipment and computer-readable storage medium. The resistance detection system composed of a resistance detection device, an automatic test machine and a test board realizes automatic multiple measurements to obtain the measured value of the resistance to be measured, and then calculates the repeatability accuracy coefficient based on the measured value to determine whether the working state of the resistance to be measured is normal or abnormal. The test error existing in the related art that the measurement of DCR depends on manual detection is avoided, a lot of time required for manual testing and data comparison is saved, and whether the resistance to be measured is abnormal can be accurately and quickly determined.

[0044] The resistance detection method, device, equipment and computer-readable storage medium provided in the embodiments of the present application are specifically described through the following embodiments. First, the resistance detection method in the embodiments of the present application is described.

[0045] The present application embodiment provides a resistance detection method, referring to Figure 2 , Figure 2 A flow chart of a resistance detection method provided in an embodiment of the present application is provided. The resistance detection method can be applied to a resistance detection device, the resistance detection device is connected to an automatic test machine, the automatic test machine is electrically connected to a test board, the test board includes a first polarity relay, a second polarity relay and a resistance to be tested, such as Figure 2 As shown, the resistance detection method provided in this embodiment includes steps S10 to S50.

[0046] In this embodiment, in order to avoid a series of defects existing in manual operations, a resistance detection scenario consisting of a resistance detection device, an automatic test equipment ATE (Automatic Test Equipment) and a test board is constructed. On the basis that the test board includes a product to be tested DUT and the corresponding resistances to be tested R_VDD and R_VSS, a first polarity relay and a second polarity relay for connecting the resistance to be tested and the automatic test equipment ATE are further provided on the test board to facilitate automatic four-wire measurement.

[0047] For ease of understanding and explanation, this embodiment provides Figure 3 A schematic diagram of an application scenario is shown in FIG. Figure 3The present invention shows an application example of how an automatic test machine ATE, a first polarity relay RELAY_DUT1_H (1, 2, 3, ..., x, y, z), second polarity relays RELAY_DUT1_L1 and RELAY_DUT1_L2, resistors to be tested RVDD_a and RVSS_b (a is 1, 2, 3, ..., 11, b is 1, ..., 10, 11, 12) and a product to be tested DUT1 are electrically connected. The first polarity relay and the second polarity relay are both controlled by a control signal (such as Relay_L1_Ctrl, Relay_H1_Ctrl) output by the ATE. Figure 3 It can be seen that the number of first polarity relays can be consistent with the number of resistors to be tested, and for each product DUT to be tested in the test board, second polarity relays twice the number of product DUTs to be tested can be configured (in this embodiment, the first polarity is high polarity High and the second polarity is low polarity Low as an example for explanation, and the two can also be swapped, and this embodiment is not limited to this).

[0048] It should be understood that Figure 3 Only some relays and connecting wires related to the DUT1 are shown. Figure 3 On this basis, the circuit connection scheme after connecting more products under test DUT can be improved or expanded according to actual needs, and this embodiment does not limit this.

[0049] Step S10, determining the current resistance to be measured from the resistances to be measured according to a preset measurement sequence;

[0050] In this embodiment, the execution subject is a resistance detection device, which can be a PC (Personal Computer, desktop, laptop, small laptop, tablet computer and ultrabook, etc.). The resistance detection device can be configured with a preset measurement sequence for measuring each resistance to be measured. Figure 3 Taking the 23 resistors to be tested shown in the figure as an example, the preset measurement sequence can be to measure each resistor to be tested in the order of RVDD_1, RVDD_2, RVDD_3, ..., RVDD_11, RVSS_1, ..., RVSS_10, RVSS_11, RVSS_12, and generate corresponding control instructions according to the preset measurement sequence. By sending the control instructions to the automatic test machine ATE, the automatic test machine ATE can determine the specific position of the current resistor to be tested based on the control instructions, so that the automatic test machine ATE can establish an electrical connection relationship with the current resistor to be tested through each relay and wire.

[0051] In this embodiment, the resistance detection method can support the simultaneous detection of the working status of the resistors under test in multiple products under test DUTs. As an example, if there are n products under test DUTs on the test board, the current resistors under test determined at the same time are also n.

[0052] Step S20, controlling the first polarity relay and the second polarity relay corresponding to the resistor to be tested to close by the automatic test machine, so that the automatic test machine is electrically connected to both ends of the resistor to be tested;

[0053] In this embodiment, after the specific position of the resistor to be measured is determined, the automatic test machine ATE can be controlled to establish electrical connections between its excitation circuit and its measurement circuit and the resistor to be measured, respectively, so as to perform four-wire measurement.

[0054] As an example, combining Figure 3 It can be known that the automatic test machine ATE responds to the control instruction of the resistance detection device, and controls the first polarity relay RELAY_DUT1_H1 to be closed through Relay_H1_Ctrl, so that the high polarity end H_FORCE_DUT1 of the excitation circuit of the automatic test machine ATE and the high polarity end H_SENSE_DUT1 of the measurement circuit can be connected to the high polarity end of the resistance to be measured RVDD_1, and controls the second polarity relay RELAY_DUT1_L1 to be closed through Relay_L1_Ctrl, so that the low polarity end L_FORCE_DUT1 of the excitation circuit of the automatic test machine ATE and the low polarity end L_SENSE_DUT1 of the measurement circuit can be connected to the low polarity end of the resistance to be measured RVDD_1, so that the resistance to be measured RVDD_1 can be further measured by four wires; In principle, the automatic test machine ATE responds to the control instruction of the resistance detection device, and controls the first polarity relay RELAY_DUT1_Hx to close through Relay_Hx_Ctrl, so that the high polarity end H_FORCE_DUT1 of the excitation circuit of the automatic test machine ATE and the high polarity end H_SENSE_DUT1 of the measurement circuit can be connected to the high polarity end of the resistor RVSS_10 to be measured, and controls the second polarity relay RELAY_DUT1_L2 to be closed through Relay_L2_Ctrl, so that the low polarity end L_FORCE_DUT1 of the excitation circuit of the automatic test machine ATE and the low polarity end L_SENSE_DUT1 of the measurement circuit can be connected to the low polarity end of the resistor RVSS_10 to be measured, so that the resistor RVSS_10 to be measured can be further measured by four wires.

[0055] Step S30, controlling the automatic test machine to measure the current resistance to be measured multiple times to obtain the measurement value of the current resistance to be measured;

[0056] In this embodiment, the resistance detection device configures the automatic test machine ATE to output a current to the current to be measured as an excitation current, and then measures the measurement voltage at the high and low polarity ends of the current resistance to be measured through the automatic test machine ATE, and then further data processing is performed to obtain the resistance value of the current resistance to be measured. The data set obtained by measuring the resistance value multiple times is the measurement value of the current resistance to be measured.

[0057] As an example, in this embodiment, the measurement value can be obtained by measuring the resistance value of the current resistance to be measured 20 times. The number of measurements is only an example and can also be other reasonable values. The more measurements are made, the more accurate the subsequent calculation results can be, but it will also take more time. In actual applications, the specific number of repeated measurements can be determined based on the actual required calculation accuracy and measurement time, and this embodiment does not limit this.

[0058] Step S40, calculating the repeatability coefficient of the resistor to be measured according to the measured value;

[0059] In this embodiment, the repeatability coefficient Cg of DCR can be obtained based on the following calculation formula: Wherein, K is the tolerance percentage, which is generally 20 by default, T is the tolerance band, s is the standard deviation calculated based on the measurement value obtained in the aforementioned step S30, and L is the multiple of the whole process dispersion equivalent to its standard deviation, which is generally 6 by default. Therefore, the formula can be simplified as follows:

[0060] Step S50, determining the working state of the resistor to be tested according to the repeatability accuracy coefficient.

[0061] In this embodiment, by comparing the repeatability accuracy coefficient Cg with the preset standard value, it can be determined whether the working state of the current resistor to be tested is normal or abnormal. As an example, when Cg is greater than 1.33, it can be considered that the working state of the resistor is normal and the resistor can continue to be used. When Cg is not greater than 1.33, it can be considered that the working state of the resistor is abnormal and the resistor cannot continue to be used and needs to be replaced or repaired.

[0062] In some feasible embodiments, after the above step S50, the resistance detection method may further include: returning to execute step S10 until the working states of all resistors to be tested in the test board are determined.

[0063] In this embodiment, before the resistance values ​​of all the resistors to be tested connected to the product to be tested DUT are measured, it is necessary to repeat the above steps S10 to S50 to complete the traversal detection of all the resistors to be tested connected to each product to be tested DUT. When returning to execute step S10, the re-determined current resistor to be tested is different from the resistor to be tested that has completed the working status detection before, thereby achieving the effect of switching the current resistor to be tested (for example, the current resistor to be tested corresponding to the previous moment is RVDD_1, the current resistor to be tested corresponding to the current moment has been switched to RVDD_2, and the current resistor to be tested corresponding to the next moment can be switched to RVDD_3).

[0064] As an example, combining Figure 3 It can be known that when returning to execute step S10, if the current resistance to be measured in the previous measurement process is RVDD_1, then according to the preset measurement timing, it can be known that the re-determined current resistance to be measured can be RVDD_2, and so on. When each resistance to be measured is detected in sequence according to the preset measurement timing provided in the aforementioned embodiment, after completing the detection of the working status of the resistance to be measured RVSS_12, it is deemed that the working status of all resistances to be measured connected to the product to be measured DUT1 has been detected; if the automatic test machine ATE detects the resistances to be measured connected to 8 products to be measured DUT at the same time, the working status of the resistances to be measured connected to the 8 products to be measured DUT can all be detected at the same time.

[0065] The present embodiment provides a resistance detection method, which realizes automatic multiple measurements to obtain the measured value of the resistance to be measured through a resistance detection system composed of a resistance detection device, an automatic test machine and a test board, and then calculates the repeatability accuracy capability coefficient based on the measured value to determine whether the working state of the resistance to be measured is normal or abnormal, thereby avoiding the test error existing in the related art that the measurement of DCR depends on manual detection, saving a lot of time required for manual testing and data comparison, and being able to accurately and quickly determine whether the resistance to be measured is abnormal.

[0066] In addition, the present application also provides a resistance detection system, referring to Figure 4 , Figure 4 A schematic diagram of a resistance detection device provided in an embodiment of the present application is shown in FIG. Figure 4 As shown, in this embodiment, the resistance detection system includes: a resistance detection device 01, an automatic testing machine 02 and a testing board 03;

[0067] The resistance detection device 01 is connected to the automatic test machine 02, and the automatic test machine 02 is electrically connected to the test board 03. The test board 03 includes:

[0068] The resistance to be measured;

[0069] A first polarity relay, wherein a first end of the first polarity relay is electrically connected to a first polarity excitation end and a first polarity measurement end of the automatic test machine 02, a controlled end of the first polarity relay is electrically connected to a first polarity enabling end of the automatic test machine 02, and a second end of the first polarity relay is electrically connected to a first polarity end of a resistor to be tested;

[0070] A second polarity relay, wherein the second end of the second polarity relay is electrically connected to the second polarity excitation end and the second polarity measurement end of the automatic test machine 02, the controlled end of the second polarity relay is electrically connected to the second polarity enabling end of the automatic test machine 02, and the second end of the second polarity relay is electrically connected to the second polarity end of the resistor to be tested;

[0071] The resistance detection device 01 is used to execute the resistance detection method provided in the above embodiment.

[0072] As an example, this embodiment can be combined with Figure 3 To understand, the details are as follows:

[0073] Figure 3 RVDD_1, RVDD_2, RVDD_3, ..., RVDD_11, RVSS_1, ..., RVSS_10, RVSS_11 and RVSS_12 are all resistors to be tested;

[0074] Figure 3 RELAY_DUT1_H1, RELAY_DUT1_H2, RELAY_DUT1_H3, ..., RELAY_DUT1_Hx, RELAY_DUT1_Hy, RELAY_DUT1_Hz are all first polarity relays;

[0075] Figure 3 RELAY_DUT1_L1 and RELAY_DUT1_L2 in are both second polarity relays.

[0076] In some feasible embodiments, the number of resistors to be measured is the same as the number of first polarity relays.

[0077] As an example, Figure 3 As shown, when the number of resistors to be measured is 23, the number of first polarity relays is also 23.

[0078] In some feasible embodiments, the resistor to be measured includes a first polarity resistor and a second polarity resistor.

[0079] As an example, Figure 3 As shown, RVDD_1, RVDD_2, RVDD_3, ..., RVDD_11 are first polarity resistors, and RVSS_1, ..., RVSS_10, RVSS_11 and RVSS_12 are second polarity resistors.

[0080] In some feasible embodiments, the test board 03 further includes:

[0081] The first polarity end of the product under test DUT is electrically connected to the second polarity end of the first polarity resistor, and the second polarity end of the product under test DUT is electrically connected to the second polarity end of the second polarity resistor.

[0082] As an example, Figure 3 As shown, the first polarity terminal VDD1 of the product under test DUT1 is electrically connected to the second polarity ends of each first polarity resistor RVDD_1, RVDD_2, RVDD_3, ..., RVDD_11, and the second polarity terminal VSS1 of the product under test DUT1 is electrically connected to the second polarity ends of each second polarity resistor RVSS_1, ..., RVSS_10, RVSS_11 and RVSS_12.

[0083] In some feasible embodiments, the number of second polarity relays is twice the number of products to be tested.

[0084] As an example, Figure 3 As shown, one product under test DUT corresponds to two second polarity relays RELAY_DUT1_L1 and RELAY_DUT1_L2.

[0085] The resistance detection system provided in this embodiment and the resistance detection method provided in the above embodiment belong to the same technical concept. The technical details not fully described in this embodiment can be referred to any of the above embodiments, and this embodiment has the same beneficial effects as executing the resistance detection method.

[0086] In addition, the embodiment of the present application also provides a resistance detection device, the resistance detection device is connected to an automatic test machine, the automatic test machine is electrically connected to a test board, the test board includes a first polarity relay, a second polarity relay and a resistance to be tested, Figure 5 , Figure 5 A schematic diagram of a resistance detection device provided in an embodiment of the present application is shown in FIG. Figure 5 As shown, in this embodiment, the resistance detection device includes: a control module 100 and a processing module 200 .

[0087] The control module 100 is used to determine the current resistance to be measured from the resistance to be measured according to a preset measurement sequence;

[0088] The control module 100 is also used to control the first polarity relay and the second polarity relay corresponding to the current resistance to be tested to close through the automatic test machine, so that the automatic test machine is electrically connected to both ends of the current resistance to be tested;

[0089] The control module 100 is also used to control the automatic tester to measure the current resistance to be measured multiple times to obtain the measurement value of the current resistance to be measured;

[0090] The processing module 200 is used to calculate the repeatability coefficient of the resistor to be measured according to the measured value;

[0091] The processing module 200 is further configured to determine the working state of the resistor to be tested according to the repeatability coefficient.

[0092] In some feasible embodiments, the control module 100 is further configured to return to the step of determining the current resistor to be measured from the resistors to be measured according to a preset measurement sequence until the working states of all the resistors to be measured in the test board are determined.

[0093] The resistance detection device provided in this embodiment and the resistance detection method provided in the above embodiment belong to the same technical concept. The technical details not fully described in this embodiment can be referred to any of the above embodiments, and this embodiment has the same beneficial effects as executing the resistance detection method.

[0094] In addition, the embodiment of the present application also provides a resistance detection device, and the above resistance detection method can be performed by a resistance detection device, and the resistance detection device can be implemented by software and / or hardware and integrated in the resistance detection device. The resistance detection device can be a mobile device such as a PC (Personal Computer, desktop, laptop, small laptop, tablet computer and ultrabook, etc.), a mobile phone, a smart wearable device, etc. that can establish an electrical connection or a communication connection with the automatic test machine.

[0095] Reference Figure 6 , Figure 6 This is a schematic diagram of the structure of a resistance detection device provided in an embodiment of the present application. Figure 6As shown, the resistance detection device may include: a processor 1001, such as a central processing unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. Among them, the communication bus 1002 is used to realize the connection and communication between these components. The user interface 1003 may include a display screen (Display), an input unit such as a keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface and a wireless interface. The network interface 1004 may optionally include a standard wired interface and a wireless interface (such as a wireless fidelity (WIreless-FIdelity, WI-FI) interface). The memory 1005 may be a high-speed random access memory (Random Access Memory, RAM), or a stable non-volatile memory (Non-Volatile Memory, NVM), such as a disk storage. The memory 1005 may also be a storage device independent of the aforementioned processor 1001.

[0096] Those skilled in the art will understand that Figure 6 The structure shown in the figure does not constitute a limitation on the resistance detection device, and may include more or less components than shown in the figure, or combine certain components, or arrange the components differently.

[0097] like Figure 6 As shown, the memory 1005 as a storage medium may include an operating system, a data storage module, a network communication module, a user interface module and a computer program.

[0098] exist Figure 6 In the resistance detection device shown, the network interface 1004 is mainly used for data communication with other devices; the user interface 1003 is mainly used for data interaction with the user; the processor 1001 and the memory 1005 in this embodiment can be set in the resistance detection device, and the resistance detection device calls the computer program stored in the memory 1005 through the processor 1001 and performs the following operations:

[0099] Determine the current resistance to be measured from the resistance to be measured according to a preset measurement sequence;

[0100] The first polarity relay and the second polarity relay corresponding to the resistance to be tested are controlled by the automatic test machine to close, so that the automatic test machine is electrically connected to both ends of the resistance to be tested;

[0101] Controlling the automatic test machine to measure the current resistance to be measured multiple times to obtain the measurement value of the current resistance to be measured;

[0102] Calculate the repeatability coefficient of the resistance to be measured based on the measured value;

[0103] The working state of the resistor to be measured is determined according to the repeatability coefficient.

[0104] Further, the processor 1001 may call the computer program stored in the memory 1005 and perform the following operations:

[0105] Return to the step of determining the current resistor to be measured from the resistors to be measured according to the preset measurement sequence until the working states of all the resistors to be measured in the test board are determined.

[0106] The resistance detection device proposed in this embodiment and the resistance detection method applied to the resistance detection device proposed in the above embodiment belong to the same technical concept. The technical details not described in detail in this embodiment can be referred to any of the above embodiments, and this embodiment has the same beneficial effects as executing the resistance detection method.

[0107] In addition, an embodiment of the present application also proposes a computer-readable storage medium, which is applied to a computer. The computer-readable storage medium can be a non-volatile computer-readable storage medium. A computer program is stored on the computer-readable storage medium. When the computer program is executed by a processor, the resistance detection method of any of the embodiments described above is implemented.

[0108] In addition, an embodiment of the present application further provides a computer program product, including a computer program, and when the computer program is executed by a processor, the resistance detection method provided in any of the above embodiments is implemented.

[0109] The computer program product provided in this embodiment and the resistance detection method proposed in the above embodiment belong to the same technical concept. Compared with the related art, the beneficial effects of the computer program product provided in this application are the same as the beneficial effects of the resistance detection method provided in the above embodiment, which will not be repeated here.

[0110] It should be noted that although a logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than that in the flowchart. The terms "first", "second", etc. in the specification, claims and drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0111] It should also be understood that the references to "one embodiment" or "some embodiments" described in the specification of the embodiments of the present application mean that one or more embodiments of the embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the statements "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0112] It will be appreciated by those skilled in the art that all or some of the steps and systems in the methods disclosed above may be implemented as software, firmware, hardware, and appropriate combinations thereof. Some physical components or all physical components may be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or may be implemented as hardware, or may be implemented as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on a computer-readable medium, which may include a computer storage medium (or non-transitory medium) and a communication medium (or temporary medium). As known to those skilled in the art, the term computer storage medium includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data). Computer storage media include, but are not limited to, RAM (Random Access Memory), ROM (Read-Only Memory), EEPROM (Electrically EPROM), flash memory or other memory technology, CD-ROM (Compact Disc Read-Only Memory), digital versatile disk (DVD) or other optical disk storage, magnetic cassettes, magnetic tapes, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store the desired information and can be accessed by a computer. In addition, it is well known to those of ordinary skill in the art that communication media typically contain computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media.

[0113] The above is a specific description of some implementation methods of the embodiments of the present application, but the embodiments of the present application are not limited to the above implementation methods. Technical personnel familiar with the field can also make various equivalent modifications or substitutions without violating the spirit of the embodiments of the present application. These equivalent modifications or substitutions are all included in the scope defined by the claims of the embodiments of the present application.

Claims

1. A resistance detection method, characterized in that: The resistance detection method is applied to a resistance detection device, the resistance detection device is connected to an automatic test machine, the automatic test machine is electrically connected to a test board, the test board includes a first polarity relay, a second polarity relay and a resistor to be tested, and the resistance detection method includes: Determine the current resistance to be measured from the resistance to be measured according to a preset measurement sequence; Controlling the first polarity relay and the second polarity relay corresponding to the current resistance to be tested to close by the automatic test machine, so that the automatic test machine is electrically connected to both ends of the current resistance to be tested; Controlling the automatic testing machine to measure the current resistance to be measured multiple times to obtain a measurement value of the current resistance to be measured; Calculate the repeatability coefficient of the resistor to be measured according to the measured value; The working state of the current resistor to be measured is determined according to the repeatability accuracy coefficient.

2. The resistance detection method according to claim 1, characterized in that: After the step of determining whether the current resistance to be measured is abnormal according to the repeatability accuracy coefficient, the resistance detection method further includes: Return to the step of determining the current resistor to be measured from the resistors to be measured according to the preset measurement sequence until the working states of all the resistors to be measured in the test board are determined.

3. A resistance detection system, characterized in that: The resistance detection system comprises: a resistance detection device, an automatic testing machine and a testing board; The resistance detection device is connected to the automatic test machine, the automatic test machine is electrically connected to the test board, and the test board includes: The resistance to be measured; A first polarity relay, wherein a first end of the first polarity relay is electrically connected to a first polarity excitation end and a first polarity measurement end of the automatic test machine, a controlled end of the first polarity relay is electrically connected to a first polarity enabling end of the automatic test machine, and a second end of the first polarity relay is electrically connected to a first polarity end of the resistor to be tested; A second polarity relay, wherein a second end of the second polarity relay is electrically connected to a second polarity excitation end and a second polarity measurement end of the automatic test machine, a controlled end of the second polarity relay is electrically connected to a second polarity enable end of the automatic test machine, and a second end of the second polarity relay is electrically connected to a second polarity end of the resistor to be tested; The resistance detection device is used to perform the resistance detection method as claimed in claim 1 or 2.

4. The resistance detection system according to claim 3, characterized in that: The number of the resistors to be measured is the same as the number of the first polarity relays.

5. The resistance detection system according to claim 4, characterized in that: The resistor to be measured includes a first polarity resistor and a second polarity resistor.

6. The resistance detection system according to claim 5, characterized in that: The test board also includes: A product to be tested, wherein the first polarity end of the product to be tested is electrically connected to the second polarity end of the first polarity resistor, and the second polarity end of the product to be tested is electrically connected to the second polarity end of the second polarity resistor.

7. The resistance detection system according to claim 6, characterized in that: The number of the second polarity relays is twice the number of the products to be tested.

8. A resistance detection device, characterized in that: The resistance detection device is connected to an automatic test machine, the automatic test machine is electrically connected to a test board, the test board includes a first polarity relay, a second polarity relay and a resistor to be tested, and the resistance detection device includes: A control module, the control module is used to determine the current resistance to be measured from the resistance to be measured according to a preset measurement sequence; The control module is also used to control the first polarity relay and the second polarity relay corresponding to the current resistance to be tested to close through the automatic test machine, so that the automatic test machine is electrically connected to both ends of the current resistance to be tested; The control module is also used to control the automatic test machine to measure the current resistance to be measured multiple times to obtain the measurement value of the current resistance to be measured; A processing module, the processing module is used to calculate the repeatability coefficient of the resistor to be measured according to the measured value; The processing module is further configured to determine a working state of the resistor to be tested according to the repeatability coefficient.

9. A resistance detection device, characterized in that: The resistance detection device comprises: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program implements the resistance detection method according to claim 1 or 2 when executed by the processor.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the resistance detection method according to claim 1 or 2 is implemented.

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