Design of Fully Automatic Lighting Control System Based on Hall Sensor
基于霍尔传感器的全自动照明控制系统的设计

A fully automatic lighting control system with a Hall sensor was designed on the basis of the analysis of various kinds of switches. The system controlled the lighting and extinguishing of the lamps through the openning and closing of a door. The lamps were automatically turned on or extinguished whenever the door was opened. When the door was closed, the lamps did nothing. The opening and closing signals of the door were transformed into electric signals by the Hall sensor in the circuit. The electric signals were received by a CD4017 counting and pulse distributor in which the electric signals were transformed into the signals for triggering a two-way thyristor to control the lighting and extinguishing of the lamps. The actual circuit was designed and simulated. The simulation result showed that the system was able to control lamps basically and its energy-saving was remarkable. It was cheap, easy to make and could be widely used in public lavatories for controlling lamps.