Street lamp control device and control method for adjusting brightness according to changes in light intensity
A technology for adjusting brightness and controlling street lamps, which is applied to lighting devices, lamp circuit layout, light sources, etc. It can solve the problems of single switching time, inability to scientifically adjust the brightness of street lamps, and low efficiency, and achieves convenient maintenance, high degree of automation, and control accuracy high effect
Active Publication Date: 2016-03-02
永春县产品质量检验所福建省香产品质量检验中心国家燃香类产品质量监督检验中心福建
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[0003] The invention aims to overcome the shortcomings of the traditional street lamp control method such as single switch time, low efficiency, and inability to scientifically adjust the brightness of the street lamp, and provides a street lamp control device and control method for adjusting brightness according to changes in light intensity
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[0024] A street lamp control device and control method for adjusting brightness over time according to the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0025] figure 1 Shown is a schematic diagram of the brightness adjustment control method of the present invention. The A / D conversion circuit converts the rectified sinusoidal voltage into a digital signal, and the single-chip microcomputer combines the photoelectric sensor signal to send the thyristor conduction trigger signal at a specific digital signal time to change the light intensity.
[0026] The device that the present invention uses is: A / D conversion circuit, this design selects 8 A / D conversion circuits; SCR drive circuit, single-chip microcomputer, select programmable devices that can be programmed multiple times, this design selects AT89C51 single-chip microcomputer for use, variable The voltage rectifier circuit provides the 5V DC v...
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The invention discloses a street lamp control device and method allowing brightness to be adjusted according to light intensity changes. The control device comprises an A / D conversion circuit, a rectification circuit, a drive circuit, a single-chip microcomputer and a detection circuit, wherein the output end of the rectification circuit, the output end of the A / D conversion circuit and the output end of the detection circuit are respectively connected with the input end of the single-chip microcomputer; the output end of the single-chip microcomputer is in series connection with the drive circuit and then connected with a load; the detection circuit is used for detecting the running state of the load. The control method comprises the steps that an operator presses down a start button so that the single-chip microcomputer can start to work; after the operator calibrates time and selects an operating mode, the single-chip microcomputer automatically adjusts the brightness according to the light intensity changes, wherein the detection circuit detects the working state within working time. By adopting the street lamp control device and method, the brightness of a street lamp can be scientifically and effectively adjusted, the degree of automation is high, control accuracy is high, and the control device is convenient to maintain.
Description
technical field [0001] The invention belongs to an electronic control device and method, in particular to a street lamp control device and a control method for adjusting brightness according to changes in light intensity. Background technique [0002] A street lamp that adjusts brightness according to changes in light intensity realized by an electronic control device is a single-chip microcomputer receiving a photoelectric sensor signal to control the conduction of a bidirectional thyristor to realize the adjustment of the brightness of a street lamp (pure resistive load). The existing street lamp control method is mainly based on decentralized time control. Its basic working principle is to install a timer in the street lamp distribution box and switch it on and off at a predetermined time. The traditional control method can only be turned on and off at a specific time. Street lights cannot meet the different needs of people with different day and night lengths throughout ...
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IPC IPC(8): H05B37/02
Inventor 魏海峰王敏常艳超陈文杰李鹏顾凯
Owner 永春县产品质量检验所福建省香产品质量检验中心国家燃香类产品质量监督检验中心福建