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LED display screen fault self-checking method and LED display screen fault inspection method

A technology of LED display and fault self-checking, applied in static indicators, instruments, etc.

Active Publication Date: 2021-07-16
深圳市诚信恒佳科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a LED display screen failure self-checking method and LED display screen fault inspection method, aiming to solve the shortcomings of the above-mentioned disclosed solutions

Method used

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  • LED display screen fault self-checking method and LED display screen fault inspection method
  • LED display screen fault self-checking method and LED display screen fault inspection method
  • LED display screen fault self-checking method and LED display screen fault inspection method

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Embodiment approach

[0095] As an embodiment of the present invention, the power detection circuit also includes an LED control card connection terminal 13, one end of the LED control card connection terminal 13 is electrically connected to the power detection element unit 11, and the other end of the LED control card connection terminal 13 is used for Connect the LED control card 3 to supply power to the LED control card 3; or connect the power supply 2 to the LED control card 3 to supply power to the LED control card 3; or connect the LED control card 3 to other power sources to supply power to the LED control card 3 through other power sources powered by.

[0096] As an embodiment of the present invention, the power detection circuit 1 is integrated in the circuit of the power supply 2, such as figure 2 As shown, the power supply 2 includes an electrically connected power supply connection end 12, an LED control card connection end 13, a LED general unit module connection end 14, a power conve...

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Abstract

The invention relates to the field of LED display screen detection, and discloses an LED display screen fault self-detection method and an LED display screen fault inspection method. A power detection element is used as a detection source, the existing LED display screen circuit structure is not changed, the method is simple and easy to implement, and the production cost is not increased; LED lamp bead faults can be detected point by point, and output faults of output pins of a constant current / constant voltage chip can be detected; output or input faults of two adjacent constant-current / constant-voltage chips can be detected, faults of the first constant-current / constant-voltage chip of the LED control card and the LED universal unit module can be detected, output and input faults of two adjacent LED universal unit modules can be detected, and output power of a power supply can be automatically adjusted when faults of a part of the power supply are detected or the temperature of a working environment is changed; and the fault detection result is uploaded to an external network platform or network equipment.

Description

technical field [0001] The invention relates to the field of LED display screen detection, in particular to a LED display screen failure self-inspection method and an LED display screen fault inspection method. Background technique [0002] The standard configuration of the bus generally has four LED displays, including the front LED display, the rear LED display, the side LED display and the interior LED display. Before dispatching the bus, the bus company must confirm that the four LED displays are not faulty before arranging the departure. Since the existing LED displays for buses do not have fault detection functions for patrol inspection and self-inspection, they can only arrange special personnel to Check each car and each screen, or let the driver check each LED display screen before departure. If the inspectors are not very professional or do not find faults very carefully, resulting in the LED display screen not displaying normally during the operation of the bus, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/00
CPCG09G3/006
Inventor 马民原萌泽张盛国张伟崔二伟
Owner 深圳市诚信恒佳科技有限公司
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