A temperature and humidity measurement method based on single chip microcomputer

With the development of distribution technology , distribution cabinets play an important role in the power system. With the continuous reform of technology, power distribution cabinets continue to use some high-precision integrated electronic equipment, but these equipment and cabinet machinery structures are often affected by the cabinet environment factors to reduce its use performance, such as cabinet temperature andhumidity is too high or too Low will affect the distribution cabinet electrical components of the electrical characteristics and mechanical properties, thus affecting the normal work of the distribution cabinet. So that the distribution of electricity problems on the entire power system has a negative impact, or even an accident caused by alarge-scale power outage or casualties. Therefore , in normal work must ensure that the temperature and humidity inside the distribution cabinet to maintain the appropriate range, then the need for the distribution cabinet temperature and humidity in real-time monitoring .The graduation design is to be combined with such a request This design has the characteristics of high precision, simple circuit, fast response and strong anti-jamming performance. The overall structure includes the hardware structure: the main circuit design ， the main circuit design, the main circuit design, Display circuit, keyboard circuit. Software structure: the main program, temperature and humidity collection procedures, display procedures. The program uses the progisp downloader to download the program to the microcontroller.