Resistance measurement method, device, system and equipment and computer readable storage medium

Abstract

The invention discloses a resistance measuring method, device, system and equipment and a computer readable storage medium, and belongs to the technical field of testing. The resistance measurement method is applied to the resistance measurement device, the resistance measurement device is electrically 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 measured, and the resistance measurement method comprises the following steps: determining a current resistor to be measured from the resistors to be measured 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; and controlling the automatic testing machine to measure the resistance value of the current to-be-tested resistor according to the preset testing current. According to the resistance measurement method provided by the invention, manual operation is not needed, automatic resistance measurement is realized, the test time is shortened, and the test efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of testing technology, and in particular to a resistance measurement method, device, system, 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 the 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, the test time will obviously be too long and the test efficiency will be extremely low. Summary of the invention

[0004] The main purpose of the present application is to provide a resistance measurement method, device, system, equipment and computer-readable storage medium, aiming to solve the technical problem of how to overcome the long test time and extremely low test efficiency caused by manual resistance testing.

[0005] To achieve the above object, the present application provides a resistance measurement method, which is applied to a resistance measurement device, the resistance measurement 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 measurement 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] The automatic testing machine is controlled according to a preset test current to measure the resistance value of the resistor currently to be tested.

[0009] In one embodiment, after the step of controlling the automatic test machine to measure the resistance value of the resistor to be tested according to a preset test current, the resistance measurement method further includes:

[0010] 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 resistance values ​​of all the resistors to be measured in the test board are measured.

[0011] In one embodiment, the step of controlling the automatic test machine to measure the resistance value of the resistor to be tested according to a preset test current includes:

[0012] Controlling the automatic testing machine to output the preset test current to the resistor to be tested, and measuring the measurement voltage of the resistor to be tested;

[0013] The resistance value of the resistor to be tested is determined according to the preset test current and the measurement voltage.

[0014] In one embodiment, before the step of controlling the automatic test machine to measure the resistance value of the resistor to be tested according to a preset test current, the resistance measurement method further includes:

[0015] The enabling state of the optimization test function is obtained, and a preset test current is determined according to the enabling state of the optimization test function.

[0016] In one embodiment, the step of determining a preset test current according to the enabled state of the optimization test function comprises:

[0017] When the optimization test function is not enabled, using the default output current of the automatic test machine as the preset test current;

[0018] When the optimization test function is enabled, a preset power value and a resistance reference value are obtained, a current setting value is determined according to the preset power value and the resistance reference value, and the current setting value is used as a preset test current.

[0019] In one embodiment, before the step of determining the current resistance to be measured from the resistance to be measured according to a preset measurement sequence, the resistance measurement method further includes:

[0020] Detecting whether the connection status among the resistance measuring device, the automatic testing machine and the testing board is normal according to preset configuration parameters;

[0021] When the connection state is normal, performing the step of determining the current resistance to be measured from the resistance to be measured according to a preset measurement sequence;

[0022] When the connection status is abnormal, an alarm prompt message is output.

[0023] In addition, to achieve the above-mentioned purpose, the present application also provides a resistance measuring device, the resistance measuring 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 measuring device includes:

[0024] 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;

[0025] 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;

[0026] A processing module, wherein the processing module is used to control the automatic testing machine to measure the resistance value of the resistor to be tested according to a preset test current.

[0027] In addition, to achieve the above-mentioned purpose, the present application also provides a resistance measurement system, which includes: a resistance measuring device, an automatic testing machine and a test board, the resistance measuring device is connected to the automatic testing machine, the automatic testing machine is electrically connected to the test board, the test board includes a first polarity relay, a second polarity relay and a resistor to be measured, and the resistance measuring device is used to perform the resistance measurement method as described above.

[0028] In addition, to achieve the above-mentioned purpose, the present application also provides a resistance measuring 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 measuring method as described above is implemented.

[0029] 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 measurement method as described above is implemented.

[0030] The present application proposes a resistance measurement method, device, system, equipment and computer-readable storage medium, the resistance measurement method is applied to a resistance measurement device, the resistance measurement device is electrically 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 measurement method includes: determining 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 measured 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 measured; and controlling the automatic test machine to measure the resistance value of the current resistance to be measured according to a preset test current. The resistance measurement method provided by the present application realizes automatic resistance measurement based on a resistance measurement system composed of a resistance measurement device, an automatic test machine and a test board, overcomes a series of defects in the related art that the measurement of DCR depends on manual detection and manual recording, shortens the test time, improves the test efficiency and accuracy, and has strong versatility and expansibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] 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.

[0032] Figure 1 A schematic diagram of the circuit principle of Kelvin four-wire measurement involved in an embodiment of the present application;

[0033] Figure 2 A schematic diagram of a resistance measurement method provided in an embodiment of the present application;

[0034] Figure 3 A schematic diagram of an application scenario involved in a resistance measurement method provided in an embodiment of the present application;

[0035] Figure 4 A schematic diagram of the structure of a resistance measuring device involved in a resistance measuring method provided in an embodiment of the present application;

[0036] Figure 5 A schematic diagram of the structure of a resistance measuring device provided in an embodiment of the present application;

[0037] Figure 6 A schematic diagram of the structure of a resistance measurement system provided in an embodiment of the present application;

[0038] Figure 7 A schematic diagram of the structure of a resistance measuring device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0039] 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.

[0040] 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.

[0041] 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 and manual recording will obviously lead to a long test time and extremely low test efficiency.

[0042] Based on this, the embodiments of the present application provide a resistance measurement method, device, system, equipment and computer-readable storage medium, and implement the resistance measurement method through a resistance measurement system consisting of a resistance measurement device, an automatic test machine and a test board, thereby overcoming a series of defects in the related art that the measurement of DCR depends on manual detection and manual recording, realizing automatic measurement of resistance, shortening the test time, improving the test efficiency and accuracy, and having strong versatility and extensibility.

[0043] The resistance measurement method, device, system, equipment and computer-readable storage medium provided in the embodiments of the present application are specifically described through the following embodiments. First, the resistance measurement method in the embodiments of the present application is described.

[0044] The present application provides a method for measuring resistance. Figure 2 , Figure 2 A flow chart of a resistance measurement method provided in an embodiment of the present application is provided. The resistance measurement method can be applied to a resistance measurement device, the resistance measurement 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, such as Figure 2 As shown, the resistance measurement method provided in this embodiment includes steps S10 to S30.

[0045] In this embodiment, in order to avoid a series of defects existing in manual operations, a resistance measurement scenario consisting of a resistance measuring device, an automatic test equipment ATE (Automatic Test Equipment) and a test board is set up. 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.

[0046] For ease of understanding and explanation, this embodiment provides Figure 3 A schematic diagram of an application scenario is shown in FIG. Figure 3 The 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 3It 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).

[0047] 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.

[0048] Step S10, determining the current resistance to be measured from the resistances to be measured according to a preset measurement sequence;

[0049] In this embodiment, the execution subject is a resistance measuring device, which can be a PC (Personal Computer, desktop, laptop, small laptop, tablet computer and ultrabook, etc.). The resistance measuring 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.

[0050] In this embodiment, the resistance measurement method can support the simultaneous measurement of resistance values ​​of resistors to be tested in multiple products DUT. As an example, if there are n products DUT on the test board, the current resistors to be tested determined at the same time are also n.

[0051] 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;

[0052] 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.

[0053] As an example, combining Figure 3 It can be known that the automatic test machine ATE responds to the control instruction of the resistance measuring 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 measuring 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 far, the resistor RVSS_10 to be measured can be further measured by four wires.

[0054] Step S30, controlling the automatic test machine to measure the resistance value of the resistor to be tested according to a preset test current.

[0055] In this embodiment, the resistance measuring device configures the automatic test machine ATE to output a preset test current as an excitation current to the current resistance to be measured, and then measures the measurement voltage at the high and low polarity ends of the current resistance to be measured by the automatic test machine ATE, and then performs further data processing to obtain the resistance value of the current resistance to be measured, wherein the preset test current can be the default excitation current value of the automatic test machine ATE, or it can be a custom configured current value from the resistance measuring device.

[0056] In some feasible embodiments, after the step of controlling the automatic test machine to measure the resistance value of the resistor to be tested according to the preset test current, the resistance measurement method may further include:

[0057] Return to step S10 and execute until the resistance values ​​of all resistors to be tested in the test board are measured.

[0058] 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 S30 to complete the traversal measurement 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 whose resistance measurement has been completed 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).

[0059] 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 measuring each resistance to be measured in sequence according to the preset measurement timing provided in the aforementioned embodiment, after completing the measurement of the resistance value of the resistance to be measured RVSS_12, it is deemed that the resistance values ​​of all the resistances to be measured connected to the product to be tested DUT1 have been measured; if the automatic test machine ATE measures the resistances to be measured connected to 8 products to be tested DUTs at the same time, the resistance values ​​of the resistances to be measured connected to the 8 products to be tested DUTs can all be measured at the same time.

[0060] In some feasible embodiments, the above step S30 may specifically include:

[0061] Step S31, controlling the automatic test machine to output a preset test current to the resistor to be tested, and measuring the measurement voltage of the resistor to be tested;

[0062] Step S32, determining the resistance value of the resistor to be tested according to the preset test current and the measurement voltage.

[0063] In this embodiment, the resistance measuring device can control the automatic test machine ATE to output a current I to the resistance to be measured. set And measure the voltage value V on the resistor to be tested measure At the same time, the resistance measuring device can record and save the current value I corresponding to the current resistance to be measured. set and voltage value V measure , and calculate the resistance value R of the resistor to be tested measure =V measure / I set .

[0064] In some feasible embodiments, before the above step S30, the resistance measurement method may further include:

[0065] Step S03, obtaining the activation state of the optimization test function, and determining a preset test current according to the activation state of the optimization test function.

[0066] In this embodiment, considering that when the resistance value of the resistor to be measured is relatively small and the applied excitation current is also relatively small, the measured voltage will also be relatively small, which may lead to an increase in error. Therefore, this embodiment also configures an optimization test function through the resistance measuring device. By choosing whether to enable the optimization test function, the excitation current output by the automatic test machine ATE to the current resistor to be measured can be changed, that is, the value of the preset test current can be changed.

[0067] In some feasible embodiments, the step of determining the preset test current according to the enabled state of the optimization test function in the above step S03 may specifically include:

[0068] Step S031, when the optimization test function is not enabled, the default output current of the automatic test machine is used as the preset test current;

[0069] Step S032, when the optimization test function is enabled, obtain a preset power value and a resistance reference value, determine a current setting value according to the preset power value and the resistance reference value, and use the current setting value as a preset test current.

[0070] In this embodiment, if the optimization test function is not enabled, the resistance measuring device uses the default excitation current value of the automatic test machine ATE as the preset test current; if the optimization test function is enabled, the resistance measuring device needs to calculate the preset test current based on the configuration parameters related to the resistance to be measured input by the operator.

[0071] As an example, when the preset power value is P max and the resistance reference value is R set In this case, the maximum preset test current that can be used to measure the resistance to be tested can be calculated as

[0072] In some feasible embodiments, before the above step S10, the resistance measurement method may further include:

[0073] Step S01, detecting whether the connection status among the resistance measuring device, the automatic testing machine and the testing board is normal according to the preset configuration parameters;

[0074] Step S011, when the connection status is normal, execute step S10;

[0075] Step S012: when the connection status is abnormal, output an alarm prompt message.

[0076] In this embodiment, before performing resistance measurement, the resistance measuring device can detect whether the connection status between the resistance measuring device, the automatic testing machine and the test board meets the test requirements based on the preset configuration parameters input by the operator or the default preset configuration parameters. If it meets the test requirements, the connection status is deemed to be normal. At this time, step S10 and its subsequent steps can be executed normally to complete the resistance measurement; if it does not meet the test requirements, the connection status is deemed to be abnormal. At this time, an alarm prompt message needs to be output to prompt the operator to troubleshoot the problem.

[0077] As an example, the above embodiments can be combined to obtain the following Figure 4 A schematic diagram of a resistance measuring device for implementing the above resistance measuring method is shown in FIG. Figure 4 It can be known that the resistance measuring device can mainly include a display module, a data management module, a data processing and result judgment module, a test control instruction interaction module, a parameter configuration module, a device connection status detection module and other functional modules that interact with the main program for implementing the above resistance measurement method. Among them, the display module is mainly used for the control of the interactive interface of the GUI (Graphical User Interface) and the display of the test results; the test control instruction interaction module is mainly used for the processing flow such as the sending and replying of the test control instructions between ATE; the parameter configuration module is used to configure the test conditions, the current setting value of DCR, and the limit value of DCR; the device connection status check module is used to check the connection status between ATE and PC; the data management module is used to process the storage of DCR test data and the storage management of MEMS sensor test data; the data processing result judgment module is used for the processing and result judgment of the DCR data computer MEMS sensor test data; the DCR test optimization module is mainly used to optimize the current setting value during DCR measurement when the DCR test optimization is selected.

[0078] In this embodiment, in addition to the steps S10 to S30 provided in the above embodiment performed by the resistance measuring device, other processes that need to be performed are supplemented: the first step is to start the test system composed of the resistance measuring device, the automatic test machine and the test board, and complete the initialization of the test system; the second step is to select whether to enable the DCR optimization test. If the optimization test is not enabled, the DCR test is performed according to the default current value. If the DCR optimization test is enabled, the current setting value is automatically calculated according to the configuration parameters input by the operator: DCR power and DCR reference value; the third step is to complete the setting of the test control parameters according to the configuration parameters input by the operator, configure each test module / test device related to the resistance measurement, detect whether the connection of each test module / test device is normal, and issue an alarm if the connection is abnormal, so as to reduce the product error test caused by abnormal equipment connection, wherein the test control parameters include DCR setting current, DCR reference value, DCR Limit value, relay control information, etc.; the fourth step is to configure the test control parameters according to the configured test control parameters. The fifth step is to determine the connection status of the product DUT to be tested and whether the number of the product DUT to be tested that is normally connected meets the minimum limit value of the test according to the configured test control parameters when the test module / test equipment is connected normally. If so, the resistance measuring device schedules and controls the relevant tests according to the test control parameters configured by the operator. If not, an alarm is issued and the test is stopped. When the test can be tested, the resistance measuring device interacts with the automatic test machine ATE module for test control instructions and data collection, and the IO module and the power supply module are scheduled according to the test control instructions to realize the relevant control, data collection and testing of the resistance DCR to be tested and the product DUT to be tested (equivalent to repeatedly executing the above steps S10 to S30 until all the resistances DCR to be tested are measured). The sixth step is to analyze the test data according to the recorded DCR value and the set Limit value, output the test results, and store the relevant test data and test results.

[0079] The present embodiment provides a resistance measurement method, which is implemented based on a resistance measurement system consisting of a resistance measurement device, an automatic test machine and a test board, overcomes a series of defects in the related art that the measurement of DCR depends on manual detection and manual recording, realizes automatic resistance measurement, shortens the test time, improves the test efficiency and accuracy, and has strong versatility and expansibility.

[0080] In addition, the embodiment of the present application also proposes a resistance measuring device. In this embodiment, the resistance measuring device is connected to an automatic test machine, and 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. Figure 5The resistance measuring device includes: a control module 100 and a processing module 200.

[0081] 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;

[0082] 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;

[0083] The processing module 200 is used to control the automatic test machine to measure the resistance value of the resistor to be tested according to a preset test current.

[0084] 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 resistance values ​​of all the resistors to be measured in the test board are measured.

[0085] In some feasible embodiments, the processing module 200 is also used to control the automatic testing machine to output a preset test current to the current resistor to be tested, and measure the measurement voltage of the current resistor to be tested; and determine the resistance value of the current resistor to be tested based on the preset test current and the measurement voltage.

[0086] In some feasible embodiments, the resistance measuring device further includes: a configuration module, the configuration module is used to obtain an enabled state of the optimization test function, and determine a preset test current according to the enabled state of the optimization test function.

[0087] In some feasible embodiments, the configuration module is also used to use the default output current of the automatic testing machine as the preset test current when the optimization test function is not enabled; when the optimization test function is enabled, obtain the preset power value and resistance reference value, determine the current setting value according to the preset power value and resistance reference value, and use the current setting value as the preset test current.

[0088] In some feasible embodiments, a detection module is used to detect whether the connection status between the resistance measuring device, the automatic testing machine and the test board is normal according to preset configuration parameters; when the connection status is normal, the step of determining the current resistance to be measured from the resistance to be measured according to a preset measurement timing is executed; when the connection status is abnormal, an alarm prompt message is output.

[0089] The resistance measuring device provided in this embodiment and the resistance measuring 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 measuring method.

[0090] In addition, the present application also provides a resistance measurement system, referring to Figure 6 The resistance measurement system includes: a resistance measurement device 01, an automatic test machine 02 and a test board 03, the resistance measurement device 01 is connected to the automatic test machine 02, the automatic test machine 02 is electrically connected to the test board 03, the test board 03 includes a first polarity relay, a second polarity relay and a resistor to be measured, and the resistance measurement device 01 is used to perform the above resistance measurement method.

[0091] The resistance measurement system provided in this embodiment and the resistance measurement 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 measurement method.

[0092] In addition, the embodiment of the present application also provides a resistance measuring device, and the above resistance measuring method can be performed by a resistance measuring device, and the resistance measuring device can be implemented by software and / or hardware and integrated in the resistance measuring device. The resistance measuring device can be a mobile device such as a PC, a mobile phone, a smart wearable device, etc. that can establish an electrical connection or a communication connection with the automatic test machine.

[0093] Reference Figure 7 , Figure 7 This is a schematic diagram of the structure of a resistance measurement device provided in an embodiment of the present application. Figure 7 As shown, the resistance measuring 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.

[0094] Those skilled in the art will understand that Figure 7The structure shown in the figure does not constitute a limitation on the resistance measuring device, and may include more or less components than shown in the figure, or combine certain components, or arrange the components differently.

[0095] like Figure 7 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.

[0096] exist Figure 7 In the resistance measuring 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 measuring device, and the resistance measuring device calls the computer program stored in the memory 1005 through the processor 1001 and performs the following operations:

[0097] Determine the current resistance to be measured from the resistance to be measured according to a preset measurement sequence;

[0098] 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;

[0099] The automatic test machine is controlled according to the preset test current to measure the resistance value of the resistor currently to be tested.

[0100] Further, the processor 1001 may call the computer program stored in the memory 1005 and perform the following operations:

[0101] 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 resistance values ​​of all the resistors to be measured in the test board are measured.

[0102] Further, the processor 1001 may call the computer program stored in the memory 1005 and perform the following operations:

[0103] Control the automatic test machine to output a preset test current to the resistor to be tested, and measure the measurement voltage of the resistor to be tested;

[0104] The resistance value of the resistor to be tested is determined according to the preset test current and measurement voltage.

[0105] Further, the processor 1001 may call the computer program stored in the memory 1005 and perform the following operations:

[0106] The enabling state of the optimization test function is obtained, and a preset test current is determined according to the enabling state of the optimization test function.

[0107] Further, the processor 1001 may call the computer program stored in the memory 1005 and perform the following operations:

[0108] When the optimization test function is not enabled, the default output current of the automatic test machine is used as the preset test current;

[0109] When the optimization test function is enabled, a preset power value and a resistance reference value are obtained, a current setting value is determined according to the preset power value and the resistance reference value, and the current setting value is used as a preset test current.

[0110] Further, the processor 1001 may call the computer program stored in the memory 1005 and perform the following operations:

[0111] Check whether the connection status between the resistance measuring device, the automatic test machine and the test board is normal according to the preset configuration parameters;

[0112] When the connection state is normal, the step of determining the current resistance to be measured from the resistance to be measured according to the preset measurement sequence is performed;

[0113] When the connection status is abnormal, an alarm prompt message is output.

[0114] The resistance measuring device proposed in this embodiment and the resistance measuring method applied to the resistance measuring 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 measuring method.

[0115] 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 measurement method of any of the embodiments described above is implemented.

[0116] 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 measurement method provided in any of the above embodiments is implemented.

[0117] The computer program product provided in this embodiment and the resistance measurement 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 measurement method provided in the above embodiment, which will not be repeated here.

[0118] 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.

[0119] 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.

[0120] 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.

[0121] 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 measurement method, characterized in that: The resistance measuring method is applied to a resistance measuring device, the resistance measuring 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 measuring 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; The automatic testing machine is controlled according to a preset test current to measure the resistance value of the resistor currently to be tested.

2. The resistance measuring method according to claim 1, characterized in that: After the step of controlling the automatic test machine to measure the resistance value of the resistor to be tested according to the preset test current, the resistance measurement 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 resistance values ​​of all the resistors to be measured in the test board are measured.

3. The resistance measuring method according to claim 1, characterized in that: The step of controlling the automatic test machine to measure the resistance value of the resistor to be tested according to the preset test current includes: Controlling the automatic testing machine to output the preset test current to the resistor to be tested, and measuring the measurement voltage of the resistor to be tested; The resistance value of the resistor to be tested is determined according to the preset test current and the measurement voltage.

4. The resistance measuring method according to claim 1, characterized in that: Before the step of controlling the automatic test machine to measure the resistance value of the resistor to be tested according to the preset test current, the resistance measurement method further includes: The enabling state of the optimization test function is obtained, and a preset test current is determined according to the enabling state of the optimization test function.

5. The resistance measuring method according to claim 4, characterized in that: The step of determining a preset test current according to the enabled state of the optimization test function comprises: When the optimization test function is not enabled, using the default output current of the automatic test machine as the preset test current; When the optimization test function is enabled, a preset power value and a resistance reference value are obtained, a current setting value is determined according to the preset power value and the resistance reference value, and the current setting value is used as a preset test current.

6. The resistance measuring method according to any one of claims 1 to 5, characterized in that: Before the step of determining the current resistance to be measured from the resistance to be measured according to the preset measurement sequence, the resistance measurement method further includes: Detecting whether the connection status among the resistance measuring device, the automatic testing machine and the testing board is normal according to preset configuration parameters; When the connection state is normal, performing the step of determining the current resistance to be measured from the resistance to be measured according to a preset measurement sequence; When the connection status is abnormal, an alarm prompt message is output.

7. A resistance measuring device, characterized in that: The resistance measuring 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 measuring 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; A processing module is used to control the automatic testing machine to measure the resistance value of the resistor to be tested according to a preset test current.

8. A resistance measurement system, characterized in that: The resistance measuring system comprises: a resistance measuring device, an automatic testing machine and a test board, the resistance measuring device is connected to the automatic testing machine, the automatic testing machine is electrically connected to the test board, the test board comprises a first polarity relay, a second polarity relay and a resistor to be measured, and the resistance measuring device is used to perform the resistance measuring method as described in any one of claims 1 to 6.

9. A resistance measuring device, characterized in that: The resistance measuring 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 measuring method according to any one of claims 1 to 6 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 measuring method according to any one of claims 1 to 6 is implemented.

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