Mixed direct-current power system for large LED display screen

A technology of LED display screen and power supply system, which is applied in the direction of power network operating system integration, emergency power supply arrangement, information technology support system, etc. It can solve the problems of no hybrid DC power supply system and no implementation method of DC power supply system, etc., and achieve various realizations effect

Active Publication Date: 2011-06-15
湖南奥通智能研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

So far, there is no hybrid DC power supply system that can meet the above requirements at the same time, and there is no implementation method of a DC power supply system similar to the implementation method described in the present invention.

Method used

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  • Mixed direct-current power system for large LED display screen
  • Mixed direct-current power system for large LED display screen
  • Mixed direct-current power system for large LED display screen

Examples

Experimental program
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Embodiment Construction

[0029] The present invention will be further described below in conjunction with drawings and embodiments.

[0030] see figure 1 , which shows the overall structural block diagram of the hybrid DC power supply system in the present invention, which includes: a variety of power input modules 101 that generate electric energy in a variety of different ways; its output is connected to the modulation module 102 to convert different DC voltages into the same voltage level The intelligent switching control module 103 is connected with the modulation module 102, and realizes automatic switching of different electric energies by detecting external switching conditions and using expert control algorithms; the scalable output module array 104 is connected with the intelligent switching control module 103, and its output The display module that is connected to LED display screen, and it has carried out peer configuration and expansion according to the number of LED display modules; Adap...

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Abstract

The invention discloses a mixed direct-current power system for a large light-emitting diode (LED) display screen. The system comprises a multi-power input module (101) in which a solar photovoltaic power supply, a storage battery and an alternating-current direct-current (AC-DC) power supply are arranged, a modulating module (102) which is connected with the multi-power input module (101) and used for converting input voltages into the same voltage class, an intelligent switching control module (103) connected with the modulating module (102), an expandable output module array (104) which has the same number as that of LED display screen modules and used for outputting a required total current, and a general packet radio service (GPRS) remote monitoring module (105) used for acquiring system parameters in real time and transmitting the system parameters to a monitoring management center. The system performs equivalent modular design and expansion on the power output according to the number of the LED display screen modules; a GPRS communication flow adaptive adjustment method based on a variation gradient value of the monitored parameters is provided; and the multi-power intelligent switching control based on an expert system is realized.

Description

technical field [0001] The invention relates to a direct current power supply system and its realization method, in particular to a hybrid direct current power supply system and its realization method which can be used for large LED display screens. Background technique [0002] LED display screens have been widely used in information display occasions such as water and land transportation, municipal administration, commerce, finance, and residential quarters, but their DC power supply mainly still uses traditional switching power supplies or even linear power supplies. Large-scale LED displays are composed of multiple LED display modules spliced ​​together, and a single LED display module is formed by an array of many single LED light-emitting diodes. The overall load of the LED display screen increases or decreases with the number of LED display modules, showing the characteristics of modularization. On the other hand, LED display screens usually work continuously, and th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J13/00H02J9/06G09G3/32
CPCY04S10/40Y02B90/222Y04S20/12Y04S20/248Y02B70/3291Y02B10/70Y02B70/30Y02B90/20
Inventor 彭可徐孟龙李仲阳兰浩汪鲁才佘利忠张伟龙小华
Owner 湖南奥通智能研究院有限公司
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