近年来伴随着经济与科技的迅猛发展，同时也使能源的需求日益增加，随之而来

In recent years, with the rapid development of economy and science and technology, the demand for energy has also increased, which has led to problems such as waste of energy. Energy conservation, emission reduction and green environmental protection have become an important issue for the sustainable development of modern society. The traditional lighting methods of teaching buildings in many colleges and universities have many disadvantages such as waste of electrical energy and complicated wiring, which will also cause high economic losses for colleges and universities. Therefore, by analyzing the current characteristics of the use of lamps in college classrooms, in order to save electricity for lighting purposes, we designed a set of intelligent classroom lighting control system. Using this system can achieve energy saving and emission reduction, and effectively reduce the workload of manual management. <br>This design is based on STC89C52 single-chip computer with photoresistor and LCD1602 display screen to monitor the flow of people and light intensity in the classroom of the teaching building in real time, and adjust the light according to the actual situation of the classroom to maintain a constant light intensity in the classroom. The system saves energy for classroom lighting to a certain extent and improves the intelligent level of the lighting system. In this design, STC89C52 single-chip microcomputer is used as the main control chip combined with the analog-to-digital conversion system. The LCD1602 display shows the current light intensity of the classroom. The light source signal is collected through the photoresistor to detect the light intensity. When the light intensity is lower than the set value, the light is turned on , Adjust the lighting according to the actual situation of the classroom. The system saves energy for classroom lighting to a certain extent and improves the intelligent level of the lighting system.

In recent years, along with the rapid development of economy and science and technology, but also make the demand for energy increasing, and then bring energy waste and other problems. Energy conservation, emission reduction and environmental protection have become an important issue for the sustainable development of modern society. And many colleges and universities teaching buildings of the traditional lighting methods have power waste, wiring laying complex and other disadvantages, but also make colleges and universities cause high economic losses. Therefore, by analyzing the current lighting characteristics of college classrooms, a set of intelligent classroom lighting control system is designed to save the purpose of lighting and electricity. The use of this system can achieve energy saving and emission reduction, effectively reduce the workload of manual management.<br>This design is based on STC89C52 microcontroller with photoresist, LCD1602 display for the teaching building classroom traffic situation and light intensity of real-time monitoring, according to the actual situation of the classroom to adjust the lighting to maintain a constant light intensity. To a certain extent, the system saves energy for classroom lighting and improves the intelligent level of lighting system. This design adopts STC89C52 microcontroller as the main control chip combined module number conversion system, LCD1602 display shows the current light intensity of the classroom, through photoresist to the light source signal to collect and detect the light intensity, when the light intensity is lower than the set value to turn on the light, according to the actual situation of the classroom to adjust the light. To a certain extent, the system saves energy for classroom lighting and improves the intelligent level of lighting system.

In recent years, with the rapid development of economy and science and technology, the demand for energy is increasing day by day, which brings problems such as energy waste. Energy conservation, emission reduction and green environmental protection have become an important topic for the sustainable development of modern society. However, the traditional lighting mode of teaching buildings in many colleges and universities has many disadvantages, such as waste of electric energy, complex line laying and so on, which will also cause high economic losses in Colleges and universities. Therefore, by analyzing the characteristics of the use of lamps and lanterns in college classrooms, this paper designs a set of intelligent classroom lighting control system for the purpose of saving lighting power. Using this system can achieve the effect of energy saving and emission reduction, and effectively reduce the workload of manual management.<br>This design is based on STC89C52 single-chip computer with photoresist and LCD1602 display screen to monitor the flow of people and light intensity in the classroom of the teaching building in real time, and adjust the light intensity to maintain a constant light intensity according to the actual situation of the classroom. To some extent, the system saves energy for classroom lighting and improves the intelligent level of lighting system. In this design, STC89C52 single chip computer is used as the main control chip combined with a / D conversion system. The LCD1602 display shows the current light intensity of the classroom. The light source signal is collected and detected by the photoresistor. When the light intensity is lower than the set value, the light is turned on and adjusted according to the actual situation of the classroom. To some extent, the system saves energy for classroom lighting and improves the intelligent level of lighting system.<br>