The Application And Research Of The Embeded System In The Grain Detecting And Controlling System

Based on the design of management monitor system of the Chibi grain depot which belongs to China Center Grain Reservation Bureau, the dissertation discusses the application of embedded system based on S3C44B0X which replaces traditional industry control computer to grain depot management monitor system. The embedded system can connect the up and the down.First of all, the paper explains the basic concept,character and development condition of embedded system. Together the general computer system compared, embedded system has itself characteristics. Embedded system is a computer system of simplifying. The dissertation discusses the application of embedded system apply in industry control realm.Secondly, according to the circumstance of the grain detecting and controlling system, this paper put forward a project of the grain detecting and controlling system. In this project, system is based on three layers network.There are the supervisor,the process detecting and controlling and the local control unit.The supervisor includes the host computer and the printer. The upper level network is Ethernet and the bottom layer network is CAN bus (standby 485 bus). The embedded system acts as a local control unit.Thirdly, this paper detailed explains the design of three layers network. Especially the embedded system that acts as a local control unit and the scale temperature circuit based on the digital temperature sensor DS18B20.Finally, based on the analyser of the problems of management monitor system of the Chibi grain depot, the paper puts forward some rectify schemes. The grain detecting and controlling system have a capacious application foreground.