A Method, System, Device and Medium for Variable Pitch of Test Probes for Battery Modules

Abstract

The present invention provides a method, system, device and medium for variable pitch of battery module test probes in the field of battery test technology. The method includes the following steps: Step S10, the MES system maintains a battery module information table; Step S20, the PLC identifies the battery bar code of the buffer station through the RFID reader, verifies the module type of the battery module at the buffer station based on the battery bar code, and generates a verification result; Step S30, based on the verification result and the battery module information table, after the current battery module is tested at the test station, the PLC automatically controls the probe to change the pitch; Step S40, after the PLC performs secondary verification on the battery module flowing from the buffer station to the test station, the probe is pressed on the pole column of the battery module for testing. The advantages of the present invention are: greatly improving the test efficiency of the battery module.

Description

Technical Field

[0001] The present invention relates to the technical field of battery testing, and particularly to a method, system, device and medium for changing the distance of test probes for battery modules. Background Art

[0002] With the rapid development of new energy vehicles, the battery modules that power new energy vehicles are gradually diversifying, and there are situations where multiple types of battery modules are produced in a mixed manner. After the production of battery modules is completed, a series of tests are required. During the test process, the probes need to be pressed onto the positive and negative electrode posts of the battery module, and the pole pitch of different types of battery modules is different. Since multiple types of battery modules are produced and tested in a mixed manner, it is necessary to change the distance of the probes.

[0003] Regarding the distance change of the probes, traditionally, after the feeding on the logistics line is ready, the bar code set on the battery module needs to be identified to determine the module type of the battery module, and then the distance of the probes is changed. As a result, most of the test time is consumed in identifying the module type and changing the distance of the probes, thus affecting the test efficiency.

[0004] Therefore, how to provide a method, system, device and medium for changing the distance of test probes for battery modules to improve the test efficiency of battery modules has become an urgent technical problem to be solved. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a method, system, device and medium for changing the distance of test probes for battery modules to improve the test efficiency of battery modules.

[0006] In the first aspect, the present invention provides a method for changing the distance of test probes for battery modules, including the following steps:

[0007] Step S10: The MES system maintains a battery module information table;

[0008] Step S20: The PLC identifies the battery bar code at the buffer station through the RFID reader, verifies the module type of the battery module at the buffer station based on the battery bar code, and generates a verification result;

[0009] Step S30: The PLC automatically controls the probes to change the distance after the current battery module is tested at the test station based on the verification result and the battery module information table;

[0010] Step S40: After the PLC performs a secondary verification on the battery module flowing from the buffer station to the test station, the probes are pressed onto the pole posts of the battery module for testing.

[0011] Further, in the step S10, the battery module information table at least includes the one-to-one correspondence relationship among the module serial number, the module type, and the pole pitch.

[0012] Further, the step S20 is specifically as follows:

[0013] The PLC uses the RFID reader to identify the battery module with an RFID chip on the buffer station to obtain the battery barcode carrying the module serial number, matches the corresponding module type from the battery module information table in the MES system based on the battery barcode, and compares whether the module types of the buffer station and the test station are the same. If they are the same, a verification result of no pitch change is generated; if they are different, a verification result of pitch change required is generated.

[0014] Further, the step S30 is specifically as follows:

[0015] When the PLC determines that the verification result is that pitch change is required, it matches the corresponding pole pitch from the battery module information table in the MES system based on the battery barcode. After completing the test of the current battery module at the test station, it automatically controls the lead screw to adjust the pitch of the needle plate based on the pole pitch, and then drives the probe installed on the needle plate to change the pitch.

[0016] The step S40 is specifically as follows:

[0017] The PLC uses the RFID reader to obtain the battery barcode of the battery module flowing from the buffer station to the test station, and after performing a secondary verification on the module type of the battery module at the test station based on the battery barcode, presses the probe against the poles of the battery module for testing.

[0018] In a second aspect, the present invention provides a battery module test probe pitch change system, including the following modules:

[0019] A battery module information table creation module, which is used for the MES system to maintain a battery module information table;

[0020] A module type verification module, which is used for the PLC to identify the battery barcode at the buffer station through the RFID reader, verify the module type of the battery module at the buffer station based on the battery barcode, and generate a verification result;

[0021] An automatic pitch change module, which is used for the PLC to automatically control the probe to change the pitch based on the verification result and the battery module information table after completing the test of the current battery module at the test station;

[0022] A test module, which is used for the PLC to perform a secondary verification on the battery module flowing from the buffer station to the test station and then press the probe against the poles of the battery module for testing.

[0023] Further, in the battery module information table creation module, the battery module information table at least includes the one-to-one correspondence relationship among the module serial number, the module type, and the pole pitch.

[0024] Further, the module type verification module is specifically:

[0025] The PLC uses an RFID reader to identify the battery module with an RFID chip on the buffer station to obtain the battery barcode carrying the module serial number, matches the corresponding module type from the battery module information table of the MES system based on the battery barcode, and compares whether the module types of the buffer station and the test station are the same. If they are the same, a verification result of no pitch change is generated; if they are different, a verification result of pitch change required is generated.

[0026] Further, the automatic pitch change module is specifically:

[0027] When the PLC determines that the verification result is that pitch change is required, it matches the corresponding pole pitch from the battery module information table of the MES system based on the battery barcode. After completing the test of the current battery module at the test station, it automatically controls the lead screw to adjust the pitch of the needle plate based on the pole pitch, and then drives the probe installed on the needle plate to change the pitch.

[0028] The test module is specifically:

[0029] The PLC uses an RFID reader to obtain the battery barcode of the battery module flowing from the buffer station to the test station, and after secondary verification of the module type of the battery module at the test station based on the battery barcode, presses the probe on the pole of the battery module for testing.

[0030] In a third aspect, the present invention provides a battery module test probe pitch change device, including a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor executes the program, the method described in the first aspect is implemented.

[0031] In a fourth aspect, the present invention provides a battery module test probe pitch change medium, on which a computer program is stored. When the program is executed by a processor, the method described in the first aspect is implemented.

[0032] One or more technical solutions provided in the embodiments of the present invention at least have the following technical effects or advantages:

[0033] By pre - maintaining a battery module information table in the MES system, which at least includes module serial number, module type, and pole pitch, before the battery module at the buffer station flows to the test station, first use an RFID reader to read the battery barcode of the battery module at the buffer station, match the corresponding module type from the battery module information table through the battery barcode, and then compare whether the module types at the buffer station and the test station are the same. When the module types are different, after completing the test of the current battery module at the test station, automatically control the probe to change the pitch, so that after the battery module flows from the buffer station to the test station, seamless connection testing can be carried out, without waiting until the battery module has been transferred to the test station as in the traditional method to judge whether to change the pitch and execute the change of pitch, that is, realizing extraction and pitch change, thereby greatly improving the testing efficiency of the battery module.

[0034] The above description is only an overview of the technical solution of the present invention. In order to be able to understand the technical means of the present invention more clearly, it can be implemented according to the content of the specification. And in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following specifically presents the specific embodiments of the present invention. Brief Description of the Drawings

[0035] The present invention will be further described below with reference to the drawings in conjunction with the embodiments.

[0036] Figure 1 It is a flowchart of a method for changing the pitch of a test probe for a battery module according to the present invention.

[0037] Figure 2 It is a schematic structural diagram of a system for changing the pitch of a test probe for a battery module according to the present invention.

[0038] Figure 3 It is a schematic structural diagram of a device for changing the pitch of a test probe for a battery module according to the present invention.

[0039] Figure 4 It is a schematic structural diagram of a medium for changing the pitch of a test probe for a battery module according to the present invention. Detailed Embodiments

[0040] The embodiments of the present application provide a method, system, device, and medium for changing the pitch of a test probe for a battery module, so as to improve the testing efficiency of the battery module.

[0041] The technical solution in the embodiments of the present application has the following general idea: Before the battery module at the buffer station flows to the test station, first use an RFID reader to read the battery barcode of the battery module at the buffer station, match the corresponding module type through the battery barcode, and then compare whether the module types at the buffer station and the test station are the same. When they are different, automatically control the probe to change the pitch, that is, realizing extraction and pitch change to improve the testing efficiency of the battery module.

[0042] Embodiment 1

[0043] This embodiment provides a battery module test probe distance changing method, such as Figure 1 As shown, the following steps are included:

[0044] Step S10, the MES system (manufacturing execution system) maintains a battery module information table for PLC matching module type and pole spacing, and encrypts the battery module information table using an encryption algorithm to ensure data security;

[0045] Step S20, the PLC identifies the battery barcode of the cache station through the RFID identifier, verifies the module type of the battery module of the cache station based on the battery barcode, and generates a verification result;

[0046] Step S30: The PLC automatically controls the probe to change the distance after the test station completes the test of the current battery module based on the verification result and the battery module information table;

[0047] Step S40: After the PLC performs secondary verification on the battery module flowing from the buffer station to the test station, the probe is pressed onto the pole of the battery module for testing. After the test is completed, the battery module is released and the cycle enters the distance change and test of the next battery module.

[0048] In the step S10, the battery module information table at least includes a one-to-one correspondence between module serial number, module type and pole spacing.

[0049] The step S20 is specifically as follows:

[0050] The PLC uses an RFID identifier to identify the battery module with an RFID chip on the cache station to obtain the battery barcode carrying the module serial number, and matches the corresponding module type from the battery module information table of the MES system based on the battery barcode, and compares whether the module types of the cache station and the test station are consistent. If they are consistent, a verification result without changing the distance is generated; if they are inconsistent, a verification result requiring changing the distance is generated. Before the PLC queries the battery module information table from the MES system, it needs to use an encryption algorithm to decrypt the battery module information table.

[0051] The step S30 is specifically as follows:

[0052] When the PLC determines that the verification result requires a change of distance, the corresponding pole spacing is matched from the battery module information table of the MES system based on the battery barcode. After the test station completes the test of the current battery module, the lead screw is automatically controlled to adjust the spacing of the needle plate based on the pole spacing, thereby linking the probe installed on the needle plate to change the distance;

[0053] The needle plate is provided with an RFID chip to record the needle plate number and the current position. The PLC identifies the current position of the RFID chip provided on the needle plate through an RFID reader, adjusts the spacing of the needle plates based on the current position, and updates the current position in the RFID chip after the adjustment is completed;

[0054] Specifically, the step S40 is as follows:

[0055] The PLC obtains the battery barcodes of the battery modules flowing from the buffer station to the test station through the RFID reader. After secondary verification of the module types of the battery modules at the test station based on the battery barcodes, the probes are pressed on the pole columns of the battery modules for testing; that is, before testing the battery modules at the test station, secondary verification is performed on whether the probe spacing and the module type match. Through secondary verification, errors can be effectively excluded and the test efficiency can be improved.

[0056] Embodiment 2

[0057] This embodiment provides a battery module test probe variable pitch system, as Figure 2 shown, including the following modules:

[0058] The battery module information table creation module is used for the MES system (manufacturing execution system) to maintain a battery module information table, which is used for the PLC to match the module type and the pole column spacing, and encrypts the battery module information table using an encryption algorithm to ensure data security;

[0059] The module type verification module is used for the PLC to identify the battery barcodes at the buffer station through the RFID reader, verify the module types of the battery modules at the buffer station based on the battery barcodes, and generate a verification result;

[0060] The automatic variable pitch module is used for the PLC to automatically control the probes to change the pitch after the current battery module is tested at the test station based on the verification result and the battery module information table;

[0061] The test module is used for the PLC to perform secondary verification on the battery modules flowing from the buffer station to the test station, then press the probes on the pole columns of the battery modules for testing, release the battery modules after the test is completed, and cycle to the variable pitch and testing of the next battery module.

[0062] In the battery module information table creation module, the battery module information table at least includes the one-to-one correspondence relationship of the module serial number, the module type, and the pole column spacing.

[0063] Specifically, the module type verification module is as follows:

[0064] The PLC identifies the battery modules with RFID chips on the buffer station through an RFID reader to obtain the battery barcodes carrying the module serial numbers, matches the corresponding module types from the battery module information table in the MES system based on the battery barcodes, and compares whether the module types at the buffer station and the test station are the same. If they are the same, a verification result without pitch variation is generated; if not, a verification result requiring pitch variation is generated. Before the PLC queries the battery module information table from the MES system, it is necessary to decrypt the battery module information table using an encryption algorithm.

[0065] The automatic pitch variation module is specifically:

[0066] When the PLC determines that the verification result requires pitch variation, it matches the corresponding pole pitch from the battery module information table in the MES system based on the battery barcode. After the current battery module is tested at the test station, it automatically controls the lead screw to adjust the pitch of the needle plate based on the pole pitch, and then drives the probes installed on the needle plate to vary the pitch.

[0067] The needle plate is provided with an RFID chip to record the needle plate number and the current position. The PLC identifies the current position of the RFID chip installed on the needle plate through an RFID reader, adjusts the pitch of the needle plate based on the current position, and updates the current position in the RFID chip after the adjustment is completed.

[0068] The test module is specifically:

[0069] The PLC obtains the battery barcode of the battery module flowing from the buffer station to the test station through an RFID reader. After secondary verification of the module type of the battery module at the test station based on the battery barcode, the probes are pressed against the poles of the battery module for testing; that is, before the test station tests the battery module, it conducts secondary verification on whether the probe pitch and the module type match. Through secondary verification, errors can be effectively eliminated and the test efficiency can be improved.

[0070] Based on the same inventive concept, this application provides an electronic device embodiment corresponding to Embodiment 1, as detailed in Embodiment 3.

[0071] Embodiment 3

[0072] This embodiment provides a battery module test probe pitch variation device, as Figure 3 shown, including a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor executes the computer program, any implementation manner in Embodiment 1 can be realized.

[0073] Since the electronic device introduced in this embodiment is the device used to implement the method in Embodiment 1 of the present application, based on the method introduced in Embodiment 1 of the present application, those skilled in the art can understand the specific implementation manners of the electronic device in this embodiment and its various forms of changes. Therefore, the specific implementation of how this electronic device implements the method in the embodiments of the present application will not be described in detail here. As long as the device used by those skilled in the art to implement the method in the embodiments of the present application belongs to the scope protected by the present application.

[0074] Based on the same inventive concept, the present application provides a storage medium corresponding to Embodiment 1, as detailed in Embodiment 4.

[0075] Embodiment 4

[0076] This embodiment provides a battery module test probe variable pitch medium, as Figure 4 shown, on which a computer program is stored. When the computer program is executed by a processor, any implementation manner in Embodiment 1 can be realized.

[0077] The technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0078] By pre-maintaining a battery module information table in the MES system that at least includes the module serial number, module type, and pole pitch, before the battery module at the buffer station flows to the test station, first read the battery barcode of the battery module at the buffer station through an RFID reader, match the corresponding module type from the battery module information table through the battery barcode, and then compare whether the module types at the buffer station and the test station are the same. When the module types are different, after the current battery module is tested at the test station, automatically control the probe to change the pitch, so that after the battery module flows from the buffer station to the test station, seamless connection testing can be performed, without the need to wait until the battery module has been transferred to the test station as in the traditional method to determine whether to change the pitch and execute the pitch change, that is, realize extraction and pitch change, thereby greatly improving the battery module test efficiency.

[0079] Those skilled in the art should understand that the embodiments of the present invention can be provided as a method, a system, or a computer program product. Therefore, the present invention can take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present invention can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that contain computer-usable program code.

[0080] The present invention is described with reference to the flowcharts and / or block diagrams of methods, apparatuses (systems), and computer program products according to embodiments of the present invention. It should be understood that each flow and / or block in the flowcharts and / or block diagrams, and the combination of flows and / or blocks in the flowcharts and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, such that the instructions executed by the processor of the computer or other programmable data processing devices produce a means for implementing the functions specified in one flow Figure 1 one flow or multiple flows and / or blocks Figure 1 or a means for implementing the functions specified in multiple blocks.

[0081] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, such that the instructions stored in the computer-readable memory produce a manufactured article including an instruction means that implements the functions specified in one flow Figure 1 one flow or multiple flows and / or blocks Figure 1 or a means for implementing the functions specified in multiple blocks.

[0082] These computer program instructions can also be loaded onto a computer or other programmable data processing device, such that a series of operation steps are executed on the computer or other programmable device to generate a computer-implemented process, so that the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one flow Figure 1 one flow or multiple flows and / or blocks Figure 1 or a means for implementing the functions specified in multiple blocks.

[0083] Although the specific embodiments of the present invention have been described above, those skilled in the art of this technology should understand that the specific embodiments we described are illustrative rather than used to limit the scope of the present invention. Equivalent modifications and variations made by those skilled in the art in accordance with the spirit of the present invention should be covered by the scope protected by the claims of the present invention.

Claims

1. A method for varying the pitch of test probes of a battery module, characterized in that: It includes the following steps: Step S10: The MES system maintains a battery module information table; Step S20: The PLC uses an RFID reader to identify the battery modules with RFID chips on the buffer station to obtain the battery barcodes carrying the module serial numbers, matches the corresponding module types from the battery module information table of the MES system based on the battery barcodes, and compares whether the module types of the buffer station and the test station are the same. If they are the same, a calibration result indicating no need for pitch variation is generated; if not, a calibration result indicating the need for pitch variation is generated; Step S30: When the PLC determines that the calibration result indicates the need for pitch variation, it matches the corresponding pole pitch from the battery module information table of the MES system based on the battery barcode. After the current battery module is tested at the test station, it automatically controls the screw rod to adjust the pitch of the needle plate based on the pole pitch, and then drives the probes installed on the needle plate to perform pitch variation; Step S40: The PLC uses an RFID reader to obtain the battery barcodes of the battery modules flowing from the buffer station to the test station, performs secondary verification on the module types of the battery modules at the test station based on the battery barcodes, and then presses the probes on the poles of the battery modules for testing.

2. The variable pitch method of a battery module test probe according to claim 1, characterized in that: In the step S10, the battery module information table includes at least the one-to-one correspondence relationship among the module serial number, the module type, and the pole pitch.

3. A battery module test probe variable pitch system, characterized in that: It includes the following modules: A battery module information table creation module, which is used for the MES system to maintain a battery module information table; A module type verification module, which is used for the PLC to use an RFID reader to identify the battery modules with RFID chips on the buffer station to obtain the battery barcodes carrying the module serial numbers, matches the corresponding module types from the battery module information table of the MES system based on the battery barcodes, and compares whether the module types of the buffer station and the test station are the same. If they are the same, a calibration result indicating no need for pitch variation is generated; if not, a calibration result indicating the need for pitch variation is generated; An automatic pitch variation module, which is used for the PLC to match the corresponding pole pitch from the battery module information table of the MES system based on the battery barcode when it determines that the calibration result indicates the need for pitch variation. After the current battery module is tested at the test station, it automatically controls the screw rod to adjust the pitch of the needle plate based on the pole pitch, and then drives the probes installed on the needle plate to perform pitch variation; A test module, which is used for the PLC to use an RFID reader to obtain the battery barcodes of the battery modules flowing from the buffer station to the test station, performs secondary verification on the module types of the battery modules at the test station based on the battery barcodes, and then presses the probes on the poles of the battery modules for testing.

4. The variable pitch system for battery module test probes according to claim 3, wherein: In the battery module information table creation module, the battery module information table includes at least the one-to-one correspondence relationship among the module serial number, the module type, and the pole pitch.

5. A battery module test probe variable pitch device, comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the method according to any one of claims 1 to 2.

6. A variable pitch medium for battery module test probes, on which a computer program is stored, characterized in that, When the program is executed by the processor, it implements the method according to any one of claims 1 to 2.

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