Rail traffic display screen test equipment

A test equipment and rail transit technology, which is applied in the field of rail transit display screen test equipment, can solve the problems of complex control, manpower consumption, and low one-time investment, and achieve the effects of simplifying the control structure, reducing control logic, and avoiding inaccuracy

Inactive Publication Date: 2019-09-20
PIXY SHANGHAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, two methods are generally used for this kind of test. One is to use a manual switch to turn on or off the power supply of the display. It is not high, and it is mostly used for small-scale occasional tests. The other is to use the programming power supply to control the device on and off. Although it has powerful functions, it is expensive and complicated to control.

Method used

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  • Rail traffic display screen test equipment
  • Rail traffic display screen test equipment
  • Rail traffic display screen test equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A rail transit display testing equipment, such as figure 1 As shown, it includes an AC contactor 101 for controlling the on-off of the power supply side of the display screen 106, a first time relay 102 for driving the AC contactor 101 to control the conduction of the power supply side of the display screen 106, and a control circuit for driving the AC contactor 101. The second time relay 103 that the power supply side of the display screen 106 is disconnected, the AC contactor 101 is connected in series with the display screen 106,

[0031] Such as figure 2 As shown, the time relay includes a normally open terminal, a normally closed terminal, a common terminal and two input terminals on the power supply side. The common terminal is connected to the normally closed terminal. , the normally open terminal is 6, the normally closed terminal is 5, and the two input terminals on the power supply side are 2 and 7 respectively, of which 2 is connected to the neutral wire an...

Embodiment 2

[0037] A rail transit display screen testing device includes an AC contactor 101 for switching a display screen 106, two relays 104, 105 for switching the secondary side of the AC contactor 101, and two relays 104, 105 for switching on and off the secondary side of the AC contactor 101, and a circuit breaker for switching on and off the display screen 106 according to the same cycle and different phases. The signal turns on and off the controller of the coils of two relays 104 and 105 respectively. The primary side of the AC contactor 101 is connected in series with the display screen 106. The common end of one relay 104 is connected to the power supply, and the normally closed end is connected to the normally open end of the other relay 105 or The normally closed end is connected, the normally open end is connected with the normally closed end or the normally open end of another relay 105, the common end of the other relay 105 is connected with the control end of the AC contact...

Embodiment 3

[0042]A rail transit display screen test device, including two AC relays for switching on and off the display screen 106 and a controller for switching on and off the secondary sides of the two AC relays according to signals of the same cycle and different phases, and one AC relay The common terminal of the AC relay is connected to the power supply, the normally closed terminal is connected to the normally open terminal or normally closed terminal of another AC relay, the normally open terminal is connected to the normally closed terminal or normally open terminal of another AC relay, and the common terminal display screen of the other AC relay is 106 connection, the controller is respectively connected to the secondary sides of the two AC relays.

[0043] The normally closed end of one AC relay is connected to the normally closed end of the other AC relay, and the normally open end is connected to the normally open end of the other AC relay. The phase difference between the o...

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PUM

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Abstract

The invention relates to rail traffic display screen test equipment. The equipment comprises an alternating current contactor for controlling on and off of a power supply side of a display screen, a first time relay for driving the alternating current contactor to control conduction of the power supply side of the display screen, and a second time relay for driving the alternating current contactor to control disconnection of the power supply side of the display screen. The alternating current contactor is connected in series with the display screen. Compared with the prior art, by using the equipment of the invention, the periodic relay is used to realize automatic circulating conduction of a display and disconnection of power supply of the display screen, manual disconnection is not needed and cost is low.

Description

technical field [0001] The invention relates to a testing device, in particular to a rail transit display testing device. Background technique [0002] In the current trains, the button-type instrument control terminal has been basically replaced by the mobile computer display controller. Since the data display control part depends on the display, the performance of the display is very important. During the production test of the display screen, in order to simulate the actual equipment In terms of usage, it is necessary to test whether the device can still work normally when the display screen is switched on and off frequently. [0003] At present, two methods are generally used for this kind of test. One is to use a manual switch to turn on or off the power supply of the display. It is not high, and it is mostly used for occasional testing in a small range. The other is to use the programming power supply to control the device on and off. Although it has powerful function...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00
CPCG01R31/003
Inventor 武利伟陈权孙涵彦余吉
Owner PIXY SHANGHAI CO LTD
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