Method and device for testing vehicle-mounted unit

A vehicle-mounted unit and test state technology, applied in electrical test/monitoring, test/monitoring control systems, instruments, etc., can solve the problems of reducing the work efficiency of testers and wasting human resources

Active Publication Date: 2015-03-18
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such a testing process will cause testers to do a lot of repetitive work, reduce the wo

Method used

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  • Method and device for testing vehicle-mounted unit
  • Method and device for testing vehicle-mounted unit

Examples

Experimental program
Comparison scheme
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Example Embodiment

[0040] Example one

[0041] This embodiment provides a processing flowchart of a method for testing a vehicle-mounted unit, such as figure 1 As shown, including the following processing steps:

[0042] Step S110, the host computer is connected to the test circuit board through a USB (Universal Serial Bus) interface; the test circuit board is a circuit board made of FR-4 common plate, and a shell can be designed for the test circuit board , The jumper switch can be changed to a button switch, and the functions achieved are the same. It is also possible to add a single-chip microcomputer on the test circuit board to realize program control to control the operation of the switch.

[0043] Step S120, the upper computer transmits the test data to the test circuit board;

[0044] The test circuit board is connected to the upper computer through the USB interface, and the upper computer transmits the test data to the test circuit board through the USB interface.

[0045] Step S130, the test ...

Example Embodiment

[0063] Example two

[0064] This embodiment provides a block diagram of the device for testing the vehicle-mounted unit, and its specific implementation structure is as follows: figure 2 As shown, it may specifically include: a test circuit board 20, a vehicle-mounted unit 10, and an upper computer 30.

[0065] The test circuit board 20 is used to connect to the vehicle-mounted unit 10 through multiple data lines. The multiple data lines include a data transmission line 214 and a test state setting line. The upper computer 30 performs the test through the data transmission line 214. Data is transmitted to the vehicle-mounted unit 10; the vehicle-mounted unit 10 enters a designated test state by adjusting the level value of the test state setting line;

[0066] The vehicle-mounted unit 10 is configured to obtain a test program corresponding to the specified test state from the test data, and execute the test program.

[0067] The host computer 30 is used to connect to the test circui...

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Abstract

The invention provides a method and a device for testing a vehicle-mounted unit. The method mainly comprises the following steps that a test circuit board is connected with the vehicle-mounted unit through a plurality of data lines; the data lines comprise data transmission lines and test state setting lines; the test circuit board transmits test data to the vehicle-mounted unit through the vehicle-mounted unit; the vehicle-mounted unit is enabled to be in a given test state by adjusting the level value of the test state setting lines, and the vehicle-mounted unit acquires a testing program corresponding to the given test state from the testing data and executes the testing program. The vehicle-mounted unit is matched with a single chip computer by adjusting the level value of the test state setting lines, and the vehicle-mounted unit is enabled to be in different test states by the test circuit board by downloading a program at one time.

Description

technical field [0001] The invention relates to the field of electronic equipment testing, in particular to a method and a device for testing a vehicle-mounted unit in an electronic non-parking charging system. Background technique [0002] The vehicle-mounted unit in the electronic toll collection system uses a single-chip microcomputer as the main control chip, and a large amount of debugging is required before the product leaves the factory, and a large amount of testing is usually required during the production process. Generally, the existing test process is to download different test programs for different test items. For example, to test the physical layer, download the physical layer test program; to test self-test, download the self-test program; transaction program. Such a testing process will cause testers to perform a lot of repetitive work, reduce the work efficiency of testers, and cause a lot of waste of human resources of the enterprise. Therefore, designin...

Claims

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Application Information

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IPC IPC(8): G05B23/02
CPCG05B23/021
Inventor 王茜刘洋
Owner AEROSPACE INFORMATION
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