Research And Design Of Online Temperature-Monitoring Of Aluminium Cell Shell And Diagnosis Of Cell Status System

Aluminium Cell is the main equipment of electrolytic aluminium, which is an industry process object with many coupling variable,temporal charge and big lag. It forms complex and mutative cell case that its internal complicated chemistry and physics process and many external interrupt ,which brings many trouble to production manipulation. Now many corporation uses rasing current to increase benefit. As current rasing, the temperature of the cell shell rases, too. With the temperature rasing, the shell is more and more thin. When aluminium liquid pours from the shell, it's very dangerous. So it's very important to measure the temperature of the cell shell real-time and online.Manpwer is used to measure the temperature before, which doesn't adapt to the automation development of the corporation at all. Anew method of the temperature measured is introdused by this article, which is gathered by C8051F020 MCU and Infrared Temperature Detector. Primary controlling room transmits command to the Pan-tilt and controls Pan-tilt running, which can measure different position temperature of the shell. Pan-tilt is fixed up in the trolly, which travels in the trolley track and is drived by stepper motor. Primary controlling room transmits command to the trolly and controls its advance. After some distance, the trolly stops and then Pan-tilt runs(up,down,left and right),which brings the Infrared Temperature Detector running. Furthermore,system can juge that Infrared Temperature Detector whether aim at the measured position by the image which is transmitted by CCD pick-up head. The communication between locale and primary controling room is realized by CAN bus.This article first introduces the meaning of the temperature measured of Aluminium Cell shell and research actuality, next is the development and application of infrared measured temperature,and then describes the design method of software and hardware,last is sum-up and the research of diagnosis of cell status.According to monitored temperature of shell and aluminium cell technical parameter,the expert system database was built in the mode of object-property-value,and stored in tree structure.Based on the cause of its failure,phnonmenon and disposal of the diseased aluminium cell,rules for expert system was produced by the fuzzy producing method.Diagnosing of cell status was realized. Last brings forward idea of the next development of the system.