人体红外传感器在楼梯间灯光控制系统中的应用

常规的楼梯间灯光控制系统采用声控原件和光敏电阻作为传感器，当夜晚外界有噪声时开启照明．系统很容易受到外界干扰而误动作，造成电能浪费．本文设计的楼梯间灯光控制系统由监控单元和控制单元两部分组成．监控单元通过光敏电阻和人体红外传感器，检测楼梯问内的照度和人员情况，将检测到的信息进行处理后发送“开”或“关”信号给灯光控制单元．灯光控制单元接收到开关信号后，打开或关闭LED照明灯．采用这种方案，提高了灯光控制的准确率，不易受环境噪声干扰，起到了节约能源的作用．

The Application of Infrared Sensor Lighting Control System for the Stairwell

The conventional lighting control system is opened in the dark when noise is detected based on the sensor of sound control element and photosensitive resistance. So the system is vulnerable to outside interference and malfunction, and causes the waste of energy. Stairwell lighting control system designed in this paper is composed of the monitoring unit and control unit. Through the photosensitive resistor and the infrared sensor, the monitoring unit detects illumination and personnel in the stairwell. The detected information will be turned into ＂on＂ or ＂off＂ signal and sent to the lighting control unit. The lighting control unit receives the ＂on＂ or ＂off＂ signal, turn on or off the LED lights. By this controlling mode, improve the accuracy of the lighting control is improved, environmental noise is reduced, further energy is saving.