With the social development of the quality of life have become increasingly demanding lighting when increasing the proportion of energy consumption, thus lighting energy conservation is also increasingly important. Popularity at home and abroad now use basic energy-saving switch has voice-activated, touch, photographic-type and so on. These kinds of switches each have their own drawbacks, such as voice-activated is not suitable for noisy places, photosensitive switches during the unmanned cannot automatically turn off.
This design through AT89C51 microcontroller with LED lighting, infrared sensor technology, lighting technology, delay technology, processing technology to realize intelligent control of lighting. Lighting equipment controlled by single-chip microcomputer relay open or closed, through the light of detection circuit for detecting lighting surrounding brightness, if brightness is not the monolithic integrated circuit and test whether BIS0001 to collect the body of Pyroelectric sensor signals, according to whether there is human Pyroelectric sensor signal microcontroller control lighting devices turn on or off immediately. Through the control circuit to switch the LED lighting, in order to achieve illumination control. Implements go the lights, put an end to waste, in order to achieve the purpose of saving energy.
with the development of society, people have been asking for higher demands on life quality. the proportion of Light is increasing in energy consumption thus saving energy is more and more important.
energy-saving switch that pervails from home and aroad nowadays basically have many types--VOR, touch type, sensor etc. each of above switches has its own flaws, for instance, VOR are not fit in noisy environment, sensor type cannot automatically turn off without man.
This design is able to achieve intelligent control over lignting equipments by SCM AT89C51 combined with LED lighting, infrared sensing, time-delay techniques. SCM controls lighting appliances to turn on or off through relays and conduct tests on brightness surronding by lightings through illumination detection. If there is not bright enough, SCM will test whether BIS0001 chip collects pyroelectric sensor singles of human. SCM will immediately turn on or off lightings depending on whether there has sensor singles. SCM control lightings by using circuits to do switching operation in that lights could be off when people go away for saving energy.