The Design Of An Ethernet-based Remote Measurement And Control System Of Fluidized Particle Furnace

21th century is the era of information and network is becoming the hot point in the area of communication that exchanges information. In the field of industry control networks the Ethernet is thought to become the best solution due to its special merits. Nowadays Ethernet based industrial control system is gradually spreading into the area of fieldbus control system and applied in different field of industry control.The controllers of those already installed fluidized particle furnace exhibit the disadvantages in volume, cost, efficiency and accuracy, and thus guiding to the motivation of this thesis to design an Ethernet-based distributed measurement and control system. The proposed system is composed of a supervisory computer, a number of front-end measurement/control units, and the Ethernet linkage connecting each of these system components. The microcontroller-based front-end units are designed to embody I/O, Ethernet interface, embeddedμC/OS-II and TCP/IP to perform data acquisition and control action output. In such a system, each front-end unit gathers temperatures and pressure of an individual furnace, and transfer the data via Ethernet to the supervisory computer. The computer performs control algorithms such as the self- tuning parameter FUZZY-PID for each furnace and transfer back to the front end also via Ethernet the resulting control action that is used to regulate corresponding executive such as a thyristor controller heater.The paper gives a detailed description of the thesis work including the basic theory, design principles, system configuration, electronic hardware, as well as the software implementation and the system integration.