Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Power detection circuit and LED display screen self-checking inspection system

A power detection circuit, LED display technology, applied in static indicators, instruments, etc., can solve the problems of increasing production costs and difficult to popularize and apply

Pending Publication Date: 2021-07-16
深圳市诚信恒佳科技有限公司
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The disadvantage of this solution is that it is necessary to modify the circuit of the existing LED display, and add components such as a single-chip microcomputer, a shift register, and a decoder. For a large number of LED displays of buses, due to increased production costs, making it difficult to promote the application

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Power detection circuit and LED display screen self-checking inspection system
  • Power detection circuit and LED display screen self-checking inspection system
  • Power detection circuit and LED display screen self-checking inspection system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0073] As an embodiment of the present invention, the power detection circuit 1 also includes an LED control card connection end 13, one end of the LED control card connection end 13 is electrically connected with the power detection element unit 11, and the other end of the LED control card connection end 13 is used To connect the LED control card 3 to supply power to the LED control card 3; or, the LED control card 3 is directly connected to the power supply 2, and the power supply 2 directly supplies power to the LED control card 3; or, the LED control card 3 is directly connected to other power sources, Power is supplied to the LED control card 3 by other power sources.

[0074] 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 mo...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to the field of LED display screen detection, and discloses a power detection circuit and an LED display screen self-checking inspection system. Compared with the prior art, the power detection circuit provided by the invention has the following advantages that a power detection element is adopted as a detection source, the existing LED display screen circuit structure is not changed, the power detection circuit is simple and easy to implement, and the production cost is not increased; LED lamp faults can be detected point by point, and constant current / constant voltage chip pin output faults can be detected; the system also can detect the output or input faults of two adjacent constant current / constant voltage chips, the faults of the first constant current / constant voltage chip of the LED control card and the LED general unit module, the output and input faults of two adjacent LED general unit modules, and the automatic adjustment of the output power of the power supply when the fault of a part of the power supply or the change of the temperature of the working environment is detected.

Description

technical field [0001] The invention relates to the field of LED display detection, in particular to a power detection circuit and an LED display self-inspection inspection system. 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 LED displays used for the existing buses do not have the fault detection function of 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, passengers can only...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
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
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com