Energy saving control device based on double element pyroelectric infrared sensor

According to the relatively serious electrical energy waste of indoor electric lighting in domestic college classrooms and reading rooms and other larger rooms, this article put forward a novel energy saving control method by which lamps can be auto controlled based on indoor light illuminance and the number of people in the room, so as to realize the lighting on demand and achieve the energy saving purposes. The article expounded the principle and design of the indoor large area energy saving lighting control device, including hardware circuit design and software programming. The experimental results indicate the energy saving control device has good prospects on large area indoor energy saving lighting and is able to achieve significant economic benefits.