A high accuracy vehicle flux real-time monitor system is proposed by using the photoelectric conversion characteristics of the pyroelectric infrared sensor.Detection signal is processed with the core of AT89C51.The techniques such as the way of the optic technology

electronic technology

electronic design automatic technology

single chip technology and PC interface technology are employed in this system.The construction of hardware and software design are introduced.The system has the advantages of simple in installation and expansibility as well as reliable in running compared with those of the conventional monitor system.The system can be applied to the equipment of traffic transportation

food processing

industrial production and science research through program expanded.It will be of broad applied prospects.