A vehicle electronic device polling online test system

Abstract

The application provides a kind of vehicle-mounted electronic equipment polling online test system, it is related to equipment test technical field, including: test board card connects multiple vehicle-mounted electronic equipment and controller area network tool box, for obtaining the vehicle information of each vehicle-mounted electronic equipment;Host is connected with test board card and controller area network tool box respectively, including: polling sequence generation module is used for generating at least one polling sequence according to each vehicle information;Polling test module connects polling sequence generation module for controlling test board card according to each polling sequence to test each vehicle-mounted electronic equipment in turn to obtain corresponding test result and receive each test result through controller area network tool box.The beneficial effect is that test board card is connected with multiple vehicle-mounted electronic equipment, and the commonality and expandability are improved;A plurality of vehicle-mounted electronic equipment is sequentially controlled for batch testing by host according to polling sequence, and the test efficiency is greatly improved;Only one controller area network tool box is needed to cooperate with testing, and the utilization rate of test equipment is improved.

Description

Technical Field

[0001] This invention relates to the field of equipment testing technology, and in particular to an online polling testing system for vehicle-mounted electronic equipment. Background Technology

[0002] In-vehicle electronic products mainly consist of three parts: hardware modules, software modules, and mechanical structures. Manufacturers need to perform system integration, relevant functional tests, performance tests, and aging tests before shipping them to OEMs for vehicle production.

[0003] Currently, automotive electronic products have a large number of communication interfaces, such as automotive domain controllers, automotive gateway controllers, and automotive radar. Each of these products has at least one controller domain network (CDN) communication interface. If multiple CDN interfaces are present, then product aging tests require multiple additional CDN toolboxes. Therefore, the existing test system platforms of various manufacturers can only perform single-unit testing at a time, or use multiple CDN toolboxes to form a complex test aging platform, or do not perform aging tests, or treat functional tests as aging tests. The test fixtures do not fully cover the hardware modules, which poses a risk of component failure.

[0004] Existing testing platforms cannot perform batch testing, resulting in low testing efficiency and impacting product manufacturing capacity; aging test platforms have poor versatility and scalability; when dealing with in-vehicle electronic products with multi-channel controller area network (Controller Area Network) devices, multiple Controller Area Network (Controller Area Network) toolboxes are required for testing, leading to low utilization of testing equipment. Summary of the Invention

[0005] To address the problems existing in the prior art, the present invention provides an online polling test system for vehicle-mounted electronic devices, comprising:

[0006] The test board connects to multiple in-vehicle electronic devices and a controller area network toolbox, and is used to obtain vehicle information from each of the in-vehicle electronic devices.

[0007] The host computer, which is connected to both the test board and the controller LAN toolbox, includes:

[0008] A polling sequence generation module is used to generate at least one polling sequence based on the vehicle information.

[0009] A polling test module, connected to the polling sequence generation module, is used to control the test board to sequentially test each of the vehicle electronic devices according to each polling sequence, obtain corresponding test results, and receive each test result through the controller domain network toolbox.

[0010] Preferably, the test board includes:

[0011] A control chip, wherein the signal output terminal of the control chip is respectively connected to the signal control terminals of multiple signal switching circuits;

[0012] The test terminals of each signal switch circuit are connected to the corresponding vehicle electronic device, and the signal output terminals of each signal switch circuit are connected to the controller area network toolbox.

[0013] Preferably, if the control chip stores the numbers of each of the signal switching circuits, then the polling sequence generation module includes:

[0014] The first unit is used to add the number of the signal switching circuit corresponding to each of the vehicle electronic devices with the same vehicle information to multiple initial queues respectively;

[0015] The second unit, connected to the first unit, is used to sort each of the initial queues according to the size containing the corresponding number to generate the corresponding polling sequence;

[0016] The third unit, connected to the second unit, is used to set the operating duration of the signal switch circuit corresponding to each of the numbers according to the order in the polling sequence.

[0017] Preferably, each of the signal switching circuits includes a high-frequency circuit and a low-frequency circuit:

[0018] The high-frequency circuit includes:

[0019] A first switching device, one end of which is connected to the vehicle-mounted electronic device; the other end of which is connected to the signal receiving end of the controller area network toolbox.

[0020] The low-frequency circuit includes:

[0021] A second switching device, one end of which is connected to the vehicle-mounted electronic device; the other end of which is connected to the signal receiving end of the controller area network toolbox.

[0022] One end of the first switching device and one end of the second switching device serve as the test terminals of the signal switching circuit;

[0023] The other end of the first switching device and the other end of the second switching device serve as the signal output terminals of the signal switching circuit.

[0024] Preferably, the first switching device and the second switching device are relays, field-effect transistors, or transistors.

[0025] Preferably, the signal receiving end of the control chip is connected to the host via an RS232 interface.

[0026] Preferably, the test board further includes a controller domain network interface;

[0027] The first signal receiving end of the controller domain network interface is connected to the other end of each of the first switching devices, the second signal receiving end of the controller domain network is connected to the other end of each of the second switching devices, and the signal output end of the controller domain network interface is connected to the controller domain network toolbox.

[0028] The above technical solution has the following advantages or beneficial effects: it uses test boards to connect multiple vehicle electronic devices, improving commensurability and scalability; it controls multiple vehicle electronic devices sequentially according to a polling sequence to perform batch testing, greatly improving testing efficiency; and it only requires one controller area network toolbox to cooperate with the testing, improving the utilization rate of the testing equipment. Attached Figure Description

[0029] Figure 1 A schematic diagram of a polling online testing system for vehicle-mounted electronic devices is shown in a preferred embodiment of the present invention.

[0030] Figure 2 This is a schematic diagram of the host structure in a preferred embodiment of the present invention. Detailed Implementation

[0031] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. The present invention is not limited to this embodiment; other embodiments that conform to the spirit of the present invention may also fall within the scope of the present invention.

[0032] In a preferred embodiment of the present invention, based on the above-mentioned problems existing in the prior art, a system for testing the aging degree of in-vehicle electronic devices is provided, such as... Figure 1 and Figure 2 As shown, it includes:

[0033] Test board 1 connects to multiple vehicle electronic devices 2 and controller domain network tool box 3 to obtain vehicle information from each vehicle electronic device 2;

[0034] Host 4 is connected to test board 1 and controller LAN tool box 3 respectively, and includes:

[0035] The polling sequence generation module 100 is used to generate at least one polling sequence based on the information of each vehicle.

[0036] The polling test module 200 is connected to the polling sequence generation module 100. It is used to control the test board to test each vehicle electronic device 2 in sequence according to each polling sequence, obtain the corresponding test results, and receive each test result through the controller domain network toolbox.

[0037] Specifically, in this embodiment, the test board 1 is connected to multiple vehicle-mounted electronic devices 2. The host 4 generates at least one polling sequence based on the information of each vehicle, and controls the test board to obtain the test results corresponding to each vehicle-mounted electronic device 2 in sequence according to each polling sequence, thereby realizing batch testing of multiple vehicle-mounted electronic devices 2 and greatly improving testing efficiency; and only one controller domain network toolbox 3 is needed to cooperate with the testing, thereby improving the utilization rate of the testing equipment.

[0038] In a preferred embodiment of the present invention, such as Figure 1 As shown, test board 1 includes:

[0039] The control chip 11 has its signal output terminals connected to the signal control terminals of multiple signal switch circuits 12.

[0040] The test terminals of each signal switch circuit 12 are connected to the corresponding vehicle electronic device 2, and the signal output terminals of each signal switch circuit 12 are connected to the controller domain network toolbox 3.

[0041] Specifically, in this embodiment, the test board 1 is connected to each vehicle electronic device 2 through multiple signal switch circuits 12. By controlling the opening and closing of each signal switch circuit 12, only one vehicle electronic device 2 is tested at the same time. By controlling the opening and closing sequence of each signal switch circuit 12, polling tests are performed on each vehicle electronic device 2.

[0042] In a preferred embodiment of the present invention, such as Figure 2 As shown, the control chip 11 stores the numbers of each signal switch circuit 12, so the polling sequence generation module 100 includes:

[0043] The first unit 110 is used to add the numbers of the signal switch circuits corresponding to each on-board electronic device with the same vehicle information to multiple initial queues respectively.

[0044] The second unit 120, connected to the first unit 110, is used to sort each initial queue according to the size of the corresponding number to generate the corresponding polling sequence;

[0045] The third unit 130, connected to the second unit 120, is used to set the operating time of the signal switch circuit corresponding to each number according to the order in the polling sequence.

[0046] Specifically, in this embodiment, there may be multiple devices belonging to the same vehicle among the vehicle electronic devices 2 to be tested. In this case, the signal switches corresponding to the vehicle electronic devices of the same vehicle are added to an initial queue according to the vehicle information. Then, the corresponding polling sequence is generated by sorting the signal switch circuits according to their numbers. The working time of the signal switch circuits 12 included in the polling sequence is set. Subsequently, each vehicle electronic device 2 is controlled to be tested in sequence according to the polling sequence. This not only avoids the problem of data errors that may be caused by testing vehicle electronic devices 2 of different vehicles, but also realizes the batch testing of multiple vehicle electronic devices 2 of multiple vehicles in sequence according to the polling sequence.

[0047] In a preferred embodiment of the present invention, such as Figure 1 As shown, each signal switching circuit 12 includes a high-frequency circuit 121 and a low-frequency circuit 122:

[0048] The high-frequency circuit includes 121:

[0049] The first switching device S1_H has one end connected to the vehicle electronic device 2 and the other end connected to the signal receiving end of the controller area network toolbox 3.

[0050] The low-frequency circuit 122 includes:

[0051] The second switching device S1_L has one end connected to the vehicle-mounted electronic device 2 and the other end connected to the signal receiving end of the controller area network toolbox 3.

[0052] One end of the first switching device S1_H and one end of the second switching device S1_L serve as the test terminals of the signal switching circuit 12;

[0053] The other end of the first switching device S1_H and the other end of the second switching device S1_L serve as the signal output terminals of the signal switching circuit 12.

[0054] Specifically, in this embodiment, as follows: Figure 1 As shown, when multiple vehicle-mounted electronic devices 2 are tested in batches, the labels of the first switching device S1_H and the second switching device S1_L of each circuit are increased accordingly until Sn_H and Sn_L.

[0055] In a preferred embodiment of the present invention, the first switching device S1_H and the second switching device S1_L are relays, field-effect transistors, or transistors.

[0056] In a preferred embodiment of the present invention, such as Figure 1 As shown, the signal receiving end of the control chip 11 is connected to the host 4 through the RS232 interface 13.

[0057] In a preferred embodiment of the present invention, such as Figure 1 As shown, test board 1 also includes a controller domain network interface 14;

[0058] The first signal receiving end of the controller domain network interface 14 is connected to the other end of each first switching device S1_H, the second signal receiving end of the controller domain network interface 14 is connected to the other end of each second switching device S1_L, and the signal output end of the controller domain network interface 14 is connected to the controller domain network toolbox 3.

[0059] The above are merely preferred embodiments of the present invention and are not intended to limit the implementation methods and protection scope of the present invention. Those skilled in the art should recognize that any equivalent substitutions and obvious changes made using the content of this specification and illustrations should be included within the protection scope of the present invention.

Claims

1. An on-board electronic device polling online test system, characterized by, The application relates to a test board card, a controller area network tool box connected with multiple vehicle-mounted electronic devices and a host computer. The host computer is connected with the test board card and the controller area network tool box, and comprises: a polling sequence generation module for generating at least one polling sequence according to the vehicle information; a polling test module connected with the polling sequence generation module, for controlling the test board card to test the vehicle-mounted electronic devices according to the polling sequence and receiving the test results through the controller area network tool box. The test board card comprises: a control chip, whose signal output end is connected with the signal control end of multiple signal switch circuits; the test end of each signal switch circuit is connected with the corresponding vehicle-mounted electronic device, and the signal output end of each signal switch circuit is connected with the controller area network tool box. The control chip stores the numbers of the signal switch circuits, and the polling sequence generation module comprises: a first unit for adding the numbers of the signal switch circuits corresponding to the vehicle-mounted electronic devices with the same vehicle information into multiple initial queues; a second unit connected with the first unit, for generating the polling sequence by sorting the initial queues according to the numbers contained in the initial queues; a third unit connected with the second unit, for setting the working time of the signal switch circuits corresponding to the numbers according to the sorting in the polling sequence. Each signal switch circuit comprises a high-frequency circuit and a low-frequency circuit.

2. The vehicle electronic polling online test system of claim 1, wherein, The high-frequency circuit comprises: a first switch device, one end of which is connected with the vehicle-mounted electronic device, and the other end of which is connected with the signal receiving end of the controller area network tool box; The low-frequency circuit comprises: a second switch device, one end of which is connected with the vehicle-mounted electronic device, and the other end of which is connected with the signal receiving end of the controller area network tool box; one end of the first switch device and one end of the second switch device are the test end of the signal switch circuit; the other end of the first switch device and the other end of the second switch device are the signal output end of the signal switch circuit. The first switch device and the second switch device are relays, field effect tubes or transistors.

3. The vehicle electronic polling online test system of claim 2, wherein, The signal receiving end of the control chip is connected with the host computer through an RS232 interface.

4. The system of claim 1, wherein, The test board card further comprises a controller area network interface.

5. The system of claim 2, wherein, The first signal receiving end of the controller area network interface is connected with the other end of each first switch device, the second signal receiving end of the controller area network interface is connected with the other end of each second switch device, and the signal output end of the controller area network interface is connected with the controller area network tool box. ​

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