Design and Application of Intelligent Lighting Control System for Classrooms Based on PLC

The matter of energy waste has always been an unavoidable problem in the sustainable development of human beings. Because of poor awareness and weakness technology of environmental conservation, many classrooms and laboratories are very wasteful of power resources due to the use of traditional lighting systems. Focus on the problem that the traditional lighting control technology is used in the classroom lighting system. In this paper, a new intelligent lighting control system for the classroom is designed, based on PLC and industrial touch-sensitive screen. Firstly, a new intelligent lighting control system for the classroom based on PLC is presented according to the design ideas and the composition principle of typical electrical control system. There are three control modes: automatic, timing and manual, according to the needs of the classroom lighting system, Secondly, the lighting circuit and PLC control circuit are designed, in addition, the control principle of each component in the circuit is described in detail. Based on this, the control program of PLC is developed. The test results show that the system design is affordable, which can solve the above problems well.