Smoking test device and smoking test method

Abstract

The invention provides a smoking test device and a smoking test method. The device comprises a test device; a plurality of load boxes, wherein a vehicle-mounted controller is detachably mounted in each load box; each load box is provided with at least one communication board card, and the communication board cards between the adjacent load boxes are connected; wherein the test equipment is connected with the communication board card on one load box; the switch unit is arranged between each communication board card and the corresponding vehicle-mounted controller, and is used for realizing the connection between the communication board card and the corresponding vehicle-mounted controller; wherein the test equipment realizes selection and test of the to-be-tested vehicle-mounted controller by controlling the switch unit of the load box. The connection between the test equipment and different vehicle-mounted controllers is conducted through the switch unit, so that the reasonable distribution and scheduling of test resources are realized, and the problem of low efficiency of the existing single-point test is solved.

Description

Technical Field

[0001] The invention relates to the field of testing, and in particular to a smoke testing device and a smoke testing method. Background Art

[0002] The vehicle controller is an important part of the modern automotive electronic system. The reliability and stability of its functions are directly related to the safety and performance of the vehicle. In the software development process of the vehicle controller, smoke testing is a commonly used preliminary testing method, which aims to quickly verify whether the basic functions of the software can be started and run normally, laying the foundation for subsequent detailed testing and verification work.

[0003] Traditional smoke test solutions usually adopt a single-point design, and each vehicle controller requires independent test equipment for testing. These test equipment include test servers, test tools, smoke test load boxes, and connection harnesses. When different types of vehicle test equipment need to be tested, independent test equipment must be equipped for each type of vehicle controller. However, when there are many types of vehicle controllers, this method requires a large demand for test equipment and is costly. Therefore, it is necessary to provide a smoke test device and a smoke test method. Summary of the invention

[0004] The present invention provides a smoke test device to solve the problem of low efficiency of a single-point smoke test solution in the prior art.

[0005] The present invention provides a smoke test device, comprising: a test device; a plurality of load boxes, each of which is detachably provided with a vehicle-mounted controller; each load box is provided with at least one communication board, and the communication boards between adjacent load boxes are connected; wherein the test device is connected to the communication board on one of the load boxes; a switch unit is provided between each communication board and the corresponding vehicle-mounted controller, and is used to realize the connection between the communication board and the corresponding vehicle-mounted controller; wherein the test device realizes the selection and test of the vehicle-mounted controller to be tested by controlling the switch unit of the load box.

[0006] In one embodiment of the present invention, there are two communication boards, and the two communication boards have different communication protocols; wherein the communication boards with the same communication protocol on adjacent load boxes are connected to each other, and the two communication boards in the load box are respectively connected to the vehicle controller.

[0007] In one embodiment of the present invention, the communication board is an input / output board and an Ethernet board.

[0008] In one embodiment of the present invention, the testing device includes a server and a testing tool, wherein the testing tool is communicatively connected to the server and to the communication board; the server is used to control the switch unit of the corresponding load box according to the testing requirements, and to test the corresponding vehicle-mounted controller through the testing tool.

[0009] In one embodiment of the present invention, the server is also used to monitor the working status of the test tool and the test status of the vehicle-mounted controller in the load box. When the working status of the test tool is idle and the vehicle-mounted controller in the load box is to be tested, the server controls the switch unit of the corresponding load box to implement the test tool to test the vehicle-mounted controller to be tested.

[0010] In one embodiment of the present invention, the load box includes a shell and a drawer, the drawer is movably connected to the shell, and the shell and the drawer form a receiving chamber for receiving the vehicle-mounted controller.

[0011] In one embodiment of the present invention, the communication board is fixedly disposed on the drawer.

[0012] In one embodiment of the present invention, a slide rail is installed in the housing, and the drawer is installed on the slide rail and moves linearly along the slide rail.

[0013] In one embodiment of the present invention, an opening for the vehicle-mounted controller to enter and exit is provided on one side of the box body of the load box, and the opening is detachably connected to a cover plate; the communication board is arranged in the load box.

[0014] In one embodiment of the present invention, a smoke test method is also provided, wherein the test equipment comprises a server and a test tool, and the method comprises: the server obtains a test requirement, determines a vehicle controller to be tested according to the test requirement, and monitors the usage status of the test tool corresponding to the vehicle controller in real time; if the test tool is idle, a test instruction is sent to a communication board on the corresponding load box; the communication board controls the corresponding switch unit according to the test instruction to realize the connection between the communication board and the corresponding vehicle controller, and sends a conduction success message to the server; after receiving the conduction success message, the server sends the test information to the communication board through the test tool; the communication board sends the test information to the corresponding vehicle controller to test the vehicle controller.

[0015] The present invention proposes a smoke test device. The test equipment centrally manages multiple load boxes and on-board controllers. Each load box is detachably equipped with an on-board controller. The on-board controller can be quickly replaced or added according to different test requirements to adapt to different types and quantities of test tasks. Adjacent load boxes are provided with interconnected communication boards, and one of the communication boards is directly connected to the test equipment. While ensuring the reliable connection between the test equipment and each communication board, it also reduces the line distribution and improves the wiring efficiency. By controlling the conduction and closure of the switch unit through the test equipment, the on-board controller to be tested can be selected efficiently and quickly to achieve the selection and testing of the on-board controller. Through this automated control and resource sharing mechanism, the flexibility and scalability of the entire device are improved, and the operating cost is significantly reduced. The switching and testing of different on-board controllers can be achieved through only one set of test equipment, solving the problem of low efficiency of existing single-point testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 An overall schematic diagram of a testing device provided by an embodiment of the present invention;

[0017] Figure 2 Shown is an overall schematic diagram of a conventional test device;

[0018] Figure 3 Shown is a schematic diagram of the structure of a load box in one embodiment of the present invention;

[0019] Figure 4 Shown is a flow chart of a smoke test method according to an embodiment of the present invention.

[0020] Component number description:

[0021] 100, test equipment; 101, server; 102, test tool; 200, load box; 201, housing; 202, drawer; 203, threading hole; 300, communication board; 301, input / output board; 302, Ethernet board; 400, switch unit; 500, vehicle controller. DETAILED DESCRIPTION

[0022] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0023] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and thus the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0024] In the following description, numerous details are discussed to provide a more thorough explanation of the embodiments of the present invention. However, it is obvious to those skilled in the art that the embodiments of the present invention can be implemented without these specific details. In other embodiments, well-known structures and devices are shown in the form of block diagrams rather than in detail to avoid making the embodiments of the present invention difficult to understand.

[0025] The inventors found that in the traditional smoke test solution, the smoke test load box is generally a single-point design, that is, the smoke test tool is connected to a vehicle controller through the smoke test load box. When different types of vehicle controllers need to be tested, Figure 2 New test equipment including test servers, test tools, smoke test load boxes and connection harnesses need to be added to meet the demand. This leads to the disadvantage that when there are many types of vehicle-mounted controllers, the demand for test equipment (test servers, test tools, smoke test load boxes) is relatively large and the cost is high.

[0026] The present invention provides a test device, wherein the test equipment centrally manages a plurality of load boxes and vehicle-mounted controllers, wherein each load box is detachably provided with a vehicle-mounted controller, and the vehicle-mounted controller can be quickly replaced or added according to different test requirements to adapt to different types and quantities of test tasks. Adjacent load boxes are provided with interconnected communication boards, and one of the communication boards is directly connected to the test equipment, which reduces line distribution and improves wiring efficiency while ensuring the reliability of connection between the test equipment and each communication board. By controlling the conduction and closing of the switch unit by the test equipment, the vehicle-mounted controller to be tested can be selected efficiently and quickly to realize the selection and testing of the vehicle-mounted controller. Through this automatic control and resource sharing mechanism, the flexibility and scalability of the entire device are improved, the operating cost is significantly reduced, and the switching and testing of different vehicle-mounted controllers can be realized by only one set of test equipment, thereby solving the problem of low efficiency of existing single-point testing. It can meet the requirement that multiple load boxes are connected to a set of smoke test tools and a smoke test server at the same time, and can automatically switch the connection relationship between the smoke test tools according to the requirements, thereby reducing the demand for the test equipment when the types of vehicle-mounted controllers are increased, and reducing the cost of smoke testing.

[0027] See also Figure 1The test device includes: a test device 100, a plurality of load boxes 200, a communication board 300 and a switch unit 400. The test device 100 is used to obtain test requirements, and send test instructions and test information to the vehicle controller 500 to be tested, so as to realize the smoke test of the vehicle controller 500. There are multiple load boxes 200, and the multiple load boxes 200 are stacked in the height direction. A vehicle controller 500 to be tested can be detachably installed in each load box 200. When the vehicle controller 500 needs to be tested, the vehicle controller 500 to be tested can be placed in the corresponding load box 200. After the test is completed, the vehicle controller 500 can be taken out of the load box 200 so that the load box 200 can continue to accommodate other vehicle controllers 500 to be tested. Among them, the types of the vehicle controller 500 include but are not limited to a central controller (Vehicle Control Processor, VCP), a zone controller (Zoned Control Unit, ZCU) or a gateway controller (Gateway Controller, GW), etc., and those skilled in the art can adaptably select the corresponding vehicle controller 500 based on the actual test requirements. Each load box 200 is provided with at least one communication board 300, and the communication board 300 is used to receive the test instructions and test information of the test equipment 100. The communication boards 300 of adjacent load boxes 200 are connected, and the communication board 300 on one of the load boxes 200 is directly connected to the test equipment 100. By connecting the communication boards 300 of adjacent load boxes 200 to each other, the direct wiring between the test equipment 100 and each load box 200 can be reduced, the wiring structure is simplified, and the wiring complexity is greatly reduced. Furthermore, the communication board 300 of a load box 200 is directly connected to the test device 100, and as a master control node, the instructions and information of the test device 100 are transmitted to the communication boards 300 of other load boxes 200. The test device 100 can control multiple load boxes 200 through the master control node, thereby simplifying the control logic and greatly improving the management efficiency of the system. The switch unit 400 is arranged in each load box 200 and is located between the communication board 300 and the vehicle controller 500, and is used to receive the control signal of the communication board 300, and conduct or disconnect the connection between the test device 100 and the vehicle controller 500 to be tested according to the control signal, so as to realize the selection and test of the vehicle controller 500 to be tested. Among them, the switch unit 400 includes but is not limited to relays, MOSFET switches, etc.

[0028] See also Figure 1 and Figure 3In one embodiment of the present invention, there are two communication boards 300, and the two communication boards 300 have different communication protocols; wherein the communication boards 300 with the same communication protocol on adjacent load boxes 200 are connected to each other, and the two communication boards 300 in the load box 200 are respectively connected to the vehicle controller 500. Two communication boards 300 are provided on each load box 200, and the communication boards 300 with the same communication protocol are connected to each other between adjacent load boxes 200. Specifically, when multiple load boxes 200 are used at the same time, a threading hole 203 can be opened on the load box 200, and the communication boards 300 with the same communication protocol in adjacent load boxes 200 are connected through a connecting line. One end of the connecting line is connected to a communication board 300 on a load box 200, and the other end passes through the threading holes 203 of the load box 200 and the adjacent load box 200 in turn, and is connected to the communication board 300 on the adjacent load box 200, so as to realize the intercommunication connection between multiple communication boards 300 with the same communication protocol. In order to increase the convenience of testing, the connection between the connecting line and the threading hole 203 is a detachable connection, and the plugging out and insertion of the connecting line can be realized by manual insertion and disassembly. Further, each communication board 300 also corresponds to a switch unit 400 to realize independent control and data transmission. By setting a communication board 300 with two different communication protocols, it is compatible with different types of vehicle-mounted controllers 500 to meet different test requirements. The type of the communication board 300 is not limited. Preferably, in one embodiment of the present invention, the communication board 300 is an input and output board 301 and an Ethernet board 302. Among them, the input and output board 301 is used to process the input and output of various signals related to the vehicle controller 500, and convert and process the signals to ensure the signal quality. The Ethernet board 302 communicates data with the test equipment 100 through the network interface to transmit test data and control signals. It should be noted that in order to improve space utilization, communication boards 300 with different communication protocols can also be integrated on an integrated card.

[0029] See also Figure 1In one embodiment of the present invention, the test device 100 includes a server 101 and a test tool 102, the test tool 102 is connected to the server 101 in communication, and is connected to the communication board 300 in communication; the server 101 is used to control the switch unit 400 of the corresponding load box 200 according to the test requirements, and test the corresponding vehicle controller 500 through the test tool 102. After the server 101 obtains the test requirements, it sends a control signal to the communication board 300, and the communication board 300 sends the control signal sent by the server 101 to the switch unit 400, so that the switch unit 400 turns on or off the connection between the test device 100 and the vehicle controller 500. The test tool 102 receives the instructions of the server 101 and performs a specific test task. The test tool 102 is connected to the communication board 300 on the load box 200 in communication, and transmits the test instructions and data, thereby ensuring the accurate transmission of the test signal and data. In addition, the test tool 102 also transmits the test data back to the server 101 so that the server 101 can perform subsequent analysis and processing.

[0030] See also Figure 1 and Figure 3In one embodiment of the present invention, the server 101 is also used to monitor the working state of the test tool 102 and the test state of the onboard controller 500 in the load box 200. When the working state of the test tool 102 is idle and the onboard controller 500 in the load box 200 is to be tested, the server 101 controls the switch unit 400 of the corresponding load box 200 to implement the test of the onboard controller 500 to be tested by the test tool 102. The server 101 monitors the working state of the test tool 102 in real time to determine whether the test tool 102 is in an idle state. In addition, the server 101 also monitors the test state of the onboard controller 500 in the load box 200 to determine whether the onboard controller 500 is in a state to be tested. When the server 101 determines that the test tool 102 is in an idle state and the onboard controller 500 is in a state to be tested, it means that the test tool 102 can execute a new test task and the onboard controller 500 can perform a smoke test. At this time, the server 101 sends a control instruction to the communication board 300 on the load box 200 equipped with the vehicle controller 500 to be tested, and the communication board 300 sends the control instruction to the switch unit 400 to close the switch unit 400 and conduct the connection line between the vehicle controller 500 and the communication board 300. Since the communication board 300 and the test tool 102 are always connected, the test tool 102 and the vehicle controller 500 are connected at this time. The server 101 sends test information to the communication board 300 through the test tool 102, and the test tool 102 performs specific test operations, sends test signals to the vehicle controller 500, collects test data and transmits it back to the server 101, so that the server 101 generates a test report. After the test is completed, the server 101 sends an instruction again to control the switch unit 400 to disconnect the connection line, and updates the status of the test tool 102 and the vehicle controller 500, preparing for the next test. In this way, the test device 100 can send program control instructions to automatically switch the connection relationship with the vehicle controller 500, so that one set of test equipment 100 can support the smoke test of multiple vehicle controllers 500, which can effectively reduce the software smoke test cost of the vehicle controller 500.

[0031] Please continue to see Figure 1 and Figure 3In one embodiment of the present invention, the load box 200 includes a housing 201 and a drawer 202, the drawer 202 is movably connected to the housing 201, and the housing 201 and the drawer 202 form a housing cavity for accommodating the vehicle controller 500. The load box 200 includes a housing 201 and a drawer 202 installed in the housing 201, one side of the housing 201 is open, and the vehicle controller 500 to be tested is placed in the drawer 202. The drawer 202 is movably installed in the housing 201 and can move along a set direction to drive the vehicle controller 500 in and out of the housing 201. By placing the vehicle controller 500 in the drawer 202 and pushing it into the housing 201, the vehicle controller 500 can be effectively protected from damage by external forces. The load box 200 of the present invention can be used alone or in multiple layers. When used in multiple layers, the number of expansion and superposition of the load box 200 is theoretically unlimited, and can be two layers, three layers, four layers or even more layers, which is convenient for flexible adaptation. Furthermore, in one embodiment of the present invention, the communication board 300 is fixedly arranged on the drawer 202. A mounting opening (not shown in the figure) is provided on the side of the drawer 202 away from the housing 201, and the communication board 300 is embedded in the mounting opening to achieve a fixed connection between the communication board 300 and the drawer 202. When there are two communication boards 300, the two communication boards 300 are respectively located on both sides of the threading hole 203.

[0032] In one embodiment of the present invention, a slide rail is installed in the housing 201, and the drawer 202 is installed on the slide rail and moves linearly along the slide rail. A slide rail (not shown in the figure) for the drawer 202 to slide is installed on the inner wall at the bottom of the housing 201, and a roller (not shown in the figure) connected to the slide rail is installed on the side of the drawer 202 facing the slide rail, and the roller contacts the slide rail to drive the drawer 202 to move linearly on the slide rail. By pulling out or pushing in the drawer 202, the vehicle controller 500 can be installed, maintained and replaced more conveniently.

[0033] In one embodiment of the present invention, an opening for the vehicle-mounted controller 500 to enter and exit is provided on one side of the box body of the load box 200, and a cover plate is detachably connected to the opening; the communication board 300 is arranged in the load box 200. The communication board 300 is fixed on the box body on one side of the load box 200, and one side of the load box 200 is open, and a cover plate is installed at the opening, and the size of the cover plate matches the opening. The cover plate and the box body can be fixed by means of a snap connection, a hinge connection, etc. After the vehicle-mounted controller 500 is placed in the load box 200, the cover plate is closed and waits for testing.

[0034] See also Figure 1 , Figure 3 and Figure 4In one embodiment of the present invention, a smoke test method is also provided. The test device 100 includes a server 101 and a test tool 102. The method includes:

[0035] S1. The server obtains the test requirements, determines the vehicle controller to be tested according to the test requirements, and monitors the usage status of the test tool corresponding to the vehicle controller in real time. If the test tool is idle, it sends a test instruction to the communication board on the corresponding load box;

[0036] S2. The communication board controls the corresponding switch unit according to the test instruction to realize the connection between the communication board and the corresponding vehicle controller, and sends a connection success message to the server;

[0037] S3. After receiving the successful connection information, the server sends test information to the communication board through the test tool;

[0038] S4. The communication board sends the test information to the corresponding vehicle controller to test the vehicle controller.

[0039] After the server 101 obtains the test requirements, it determines the vehicle controller 500 to be tested according to the test requirements. At this time, the server 101 monitors the use status of the test tool 102 corresponding to the vehicle controller 500 to be tested in real time. When the test tool 102 is idle, the server 101 sends a test instruction to the communication board 300 on the corresponding load box 200. After receiving the test instruction, the communication board 300 controls the switch unit 400 on the same load box 200 to close, thereby connecting the communication board 300 with the vehicle controller 500, and after the connection is successful, sends a connection success message to the server 101. After receiving the connection success message sent by the communication board 300, the server 101 will send test information to the communication board 300 through the test tool 102, wherein the test information includes but is not limited to test steps, signal parameters and data acquisition requirements. After receiving the test information sent by the server 101 through the test tool 102, the communication board 300 transmits the test information to the corresponding vehicle controller 500 and starts to perform the HIL hardware-in-the-loop simulation test. The on-board controller 500 performs self-test or responds to the test signal according to the requirements of the test information, and after the test is completed, the test result is transmitted back to the communication board 300. The communication board 300 transmits the test data back to the test tool 102, and then the test tool 102 uploads it to the server 101 for processing and analysis. In addition, the server 101 can also monitor the use status of the test tool 102, and when the test tool 102 is disconnected or fails, it will issue an early warning message for timely maintenance. In this way, without increasing or decreasing the test equipment 100, each set of test equipment 100 is changed from matching a single on-board controller 500 to matching multiple different types of on-board controllers 500, and the server 101 and multiple on-board controllers 500 are connected through the switch unit 400, and the switch unit 400 can conduct the connection between the test tool 102 and different on-board controllers 500 according to the instruction. The reasonable allocation and scheduling of test resources is realized, ensuring that all test resources are maximized, and improving work efficiency and equipment utilization.

[0040] Each step in the above-mentioned smoke test method can be implemented in whole or in part by software, hardware, or a combination thereof. Each of the above-mentioned steps can be embedded in or independent of a processor in a computer device in a hardware format, or can be stored in a memory in a computer device in a software format, so that the processor can call the operations corresponding to each of the above modules.

[0041] It should be noted that, in order to highlight the innovative part of the present invention, steps that are not closely related to solving the technical problem proposed by the present invention are not introduced in this embodiment, but this does not mean that there are no other steps in this embodiment.

[0042] In summary, the present invention discloses a smoke test device and a smoke test method, wherein the test equipment centrally manages multiple load boxes and vehicle-mounted controllers, and each load box can be detachably installed with a vehicle-mounted controller, and the vehicle-mounted controller can be quickly replaced or added according to different test requirements to adapt to different types and quantities of test tasks. Adjacent load boxes are provided with interconnected communication boards, and one of the communication boards is directly connected to the test equipment, which not only ensures the reliability of the connection between the test equipment and each communication board, but also greatly reduces the line distribution and improves the wiring efficiency. By controlling the conduction and closure of the switch unit through the test equipment, the vehicle-mounted controller to be tested can be selected efficiently and quickly to achieve the selection and testing of the vehicle-mounted controller. Through this automatic control and resource sharing mechanism, the flexibility and scalability of the entire device are improved, the operating cost is significantly reduced, and the switching and testing of different vehicle-mounted controllers can be achieved through only one set of test equipment, solving the problem of low efficiency of existing single-point testing. Therefore, the present invention effectively overcomes the various shortcomings in the prior art and has a high industrial utilization value.

[0043] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A smoke test device, characterized in that: The device comprises: Testing equipment; Multiple load boxes, each of which has a vehicle-mounted controller detachably installed therein; Each load box is provided with at least one communication card, and the communication cards between adjacent load boxes are connected; wherein the test device is connected to the communication card on one of the load boxes; A switch unit is provided between each communication board and the corresponding vehicle controller, and is used to realize the connection between the communication board and the corresponding vehicle controller; The test device selects and tests the vehicle-mounted controller to be tested by controlling the switch unit of the load box.

2. The smoke test device according to claim 1, characterized in that: There are two communication boards, and the two communication boards have different communication protocols. The communication boards with the same communication protocol on adjacent load boxes are connected to each other, and the two communication boards in the load box are connected to the vehicle controller respectively.

3. The smoke test device according to claim 2, characterized in that: The communication boards are input / output boards and Ethernet boards.

4. The smoke test device according to claim 1, characterized in that: The testing device includes a server and a testing tool, wherein the testing tool is communicatively connected to the server and to the communication board; the server is used to control the switch unit of the corresponding load box according to the testing requirements, and to test the corresponding vehicle-mounted controller through the testing tool.

5. The smoke test device according to claim 4, characterized in that: The server is also used to monitor the working status of the test tool and the test status of the vehicle-mounted controller in the load box. When the working status of the test tool is idle and the vehicle-mounted controller in the load box is to be tested, the server controls the switch unit of the corresponding load box to implement the test tool's test of the vehicle-mounted controller to be tested.

6. The smoke test device according to claim 1, characterized in that: The load box comprises a shell and a drawer, wherein the drawer is movably connected to the shell, and the shell and the drawer form a receiving chamber for receiving a vehicle-mounted controller.

7. The smoke test device according to claim 6, characterized in that: The communication board is fixedly arranged on the drawer.

8. The smoke test device according to claim 6, characterized in that: A slide rail is installed in the shell, and the drawer is installed on the slide rail and moves linearly along the slide rail.

9. The smoke test device according to claim 1, characterized in that: An opening for the vehicle-mounted controller to enter and exit is arranged on one side of the box body of the load box, and a cover plate is detachably connected to the opening; the communication board is arranged in the load box.

10. A smoke test method, characterized in that: The test method uses the smoke test device according to any one of claims 1 to 9 for testing, the test device includes a server and a test tool, and the method includes: The server obtains the test requirements, determines the vehicle controller to be tested according to the test requirements, and monitors the use status of the test tool corresponding to the vehicle controller in real time. If the test tool is idle, the server sends a test instruction to the communication board on the corresponding load box; The communication board controls the corresponding switch unit according to the test instruction to realize the connection between the communication board and the corresponding vehicle controller, and sends a connection success message to the server; After receiving the successful connection information, the server sends test information to the communication board through the test tool; The communication board sends the test information to the corresponding vehicle-mounted controller to test the vehicle-mounted controller.

Images