LED light intensity control system for airport navigation aid

A light intensity control and lighting control technology, applied in the field of lighting, can solve the problems of endangering the safe operation of the airport, slow response speed, unstable waveform, etc., and achieve strong anti-interference and reliability, reduce energy consumption, and stable system operation Effect

Inactive Publication Date: 2018-06-05
杨晶
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these magnetic technologies have been used relatively early, and there are many inconveniences, such as large volume, difficult to control, unstable waveform, slow response speed, high power consumption, etc.
With the increase in the number and capacity of navigation lights, this shortcoming will become more prominent, thus greatly endangering the safe operation of the airport.

Method used

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  • LED light intensity control system for airport navigation aid
  • LED light intensity control system for airport navigation aid
  • LED light intensity control system for airport navigation aid

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with drawings and embodiments.

[0018] Such as figure 1 , In the main program of the LED light intensity control system, the system initialization includes initialization of timer, AD sampling and LCD screen. Entering the interrupt, first judge whether there is data sampled by AD and whether the voltage value needs to be stored in the main loop program. Then carry out the algorithm calculation of PI control and finally display the relevant data through the liquid crystal control module.

[0019] Such as figure 2 , When the timer is initialized, the working mode should be selected as the fast PWM mode. On this basis, the PWM output mode can be selected as "set when the comparison matches, and clear when the count reaches the maximum". The purpose of this choice is to cooperate with the photoelectric isolator. The negative logic output makes the digital quantity inside the single-chip microcomputer ...

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Abstract

The invention relates to an LED light intensity control system for airport navigation aid, which is suitable for the lighting field. The LED light intensity control system proposes an LED lamplight control solution based on an ordinary light modulator, realizes the control of an LED lamp, has requirement for real-time performance, and selects an ATMEL88 from the ATMEL company as a core controller.The LED light intensity control system adopts an LED light source, can reach the system requirements while reducing energy consumption, is simple in circuit structure, reduces the cost, ensures thatthe LED light intensity control system operates in real time and precisely, is stable in system operation, and has high anti-interference performance and reliability.

Description

technical field [0001] The invention relates to an LED light intensity control system for airport navigation, which is suitable for the lighting field. Background technique [0002] The LED (light emitting diode) light intensity control system for airport navigation lights is a control device used to control the guide lights around the airport runway. Through the use of it, the pilot can grasp the accurate position information of the aircraft's runway at night, when the light is weak or the sight is not clear due to the influence of the weather, so as to drive the aircraft to land safely. Compared with other lighting control systems, the airport navigation light intensity control system has a complex use environment and a wide range of use, which also increases the difficulty of its stable design. [0003] At present, incandescent lamps are generally used as the light source in the light intensity control system of airports at home and abroad. If you need to use different ...

Claims

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Application Information

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IPC IPC(8): H05B33/08H05B44/00
CPCH05B45/10
Inventor 杨晶
Owner 杨晶
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