Study And Approach To Tobacco Baking Distributed Control System Based On ARM

Tobacco baking is an important step which decides the quality and availability of tobacco. With the continuous improvement of tobacco quality requirements, aiming at shortcomings of baking tools, author combines automation production with tobacco baking theory, knowing temperature and humidity condition control for tobacco baking is the key to success. Through professional baking experience forms expert curve, develop the tobacco baking distributed control system based on ARM.In this paper author brings forward resolvent of tobacco baking distributed control system based on ARM. The article reviewed domestic and foreign tobacco distribution system development status. Aimming at the requirements of tobacco baking system control to analysis development goals, according to tobacco control requirements of the special working environment and the characteristics of tobacco baking, the whole system is divided into communication server and mc real-time control. Analysis and Study the architecture and the corresponding control methods of communication server and sub-machine.This paper analysis system from following three parts:Communication server design: Introduce whole performance and structural characteristics of a new type of microcontroller- S3C44B0, and some modules are composed by S3C44B0 ,such as communications server storage module, LCD module, Ethernet interface module, embedded the UC/OS-II operating systems , software design according to tobacco technology and fuzzy control all make a detailed exposition.The communications network research: Introduce the standard of serial communication RS485 bus,transceiver SN75LBC184 and communication programmer.Sub-machine designs: First introduce the composing of sub-machine, it includes module of collecting temperature and humidity,timing,displaying and keyboard, then shows installation and debugging of sub-machine detailedly in baking house. At last introduce entire system's debugging and the ways for solving problem.This system has certain advanced in some aspects such as the adaptability of this system is good,controlling temptrature and humidity is exactitude,Also conquering defaults about baking technics is difficult to execute,instability of baking effect, unnormal baking when power failure . It has the vast application and extensive prospect on manufacture.