Locomotive display screen testing device and method

Abstract

The invention discloses a locomotive display screen testing device and method. The locomotive display screen testing device is connected with a display screen and comprises a computer; the computer comprises an electronic cabinet simulation module, an LCU (logic control unit) simulation module, a locomotive-mounted information device simulation module, a fault isolation unit simulation module and a locomotive power supplying device simulation module; the computer is used for sending the simulated locomotive state information to a display screen through the electronic cabinet simulation module, the LCU simulation module, the locomotive-mounted information device simulation module, the fault isolation unit simulation module and the locomotive power supplying device simulation module and judging whether the communication and the data displaying of the display screen per se and the display screen and the modules are normal or not by detecting whether the display screen can communicate normally and displaying the locomotive state information from the computer correctly or not. Due to the adoption of the locomotive display screen testing device and method of the technical scheme, the display screen can be tested more comprehensively. In addition, the locomotive display screen testing device has higher performance-price ratio, can test more flexibly and is more convenient to use.

Description

technical field [0001] The invention relates to an equipment testing device and a method thereof in the field of rail transit, in particular to a device and a method thereof for testing a display screen of a locomotive, which are widely used in vehicles such as railway locomotives, urban rail transits, and subways. Background technique [0002] At present, a display screen is usually installed on a locomotive, as well as an electronic device such as an electronic cabinet, an LCU (Logic Control Unit, a control device on a locomotive), an on-board information device, a fault isolation unit, and a train power supply device. The display screen needs to communicate with other electronic devices on the locomotive, these devices include: electronic cabinet, LCU, on-board information device, fault isolation unit and train power supply device. The communication between them adopts the RS485 multi-computer communication method, and at least two communication lines are required, which ...

AI Technical Summary

Problems solved by technology

[0011] (1) It is tested whether the display screen can communicate with the electronic cabinet, but whether the display screen can correctly display all the data from the electronic cabinet has not been tested, so the test is not comprehensive

[0012] (2) Only tested whether the display screen can communicate with the electronic cabinet, but whether the display screen can communicate with other devices has not been tested, and whether the data from other devices can be displayed correctly has not been tested, so the test is not comprehensive

[0013] (3) In order to test the display screen, an electronic cabinet needs to be prepared, and the electronic cabinet is expensive, heavy and inconvenient to move

Therefore, the test is expensive and inflexible

[0014] To sum up, there are many untested places in the existing test devices and methods, which is a one-sided test method; and the test cost is high and the flexibility is poor

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