Design and Research on New Intelligent Temperature Control System for Stove-外文文献.doc

Design and Research on New Intelligent Temperature Control System for StoveCHEN Xue-li( College of Electronics and Electrical Engineering, Nanjing Normal University, Nanjing 210042, P.R.China )Abstract: A new intelligent temperature control system for stove was introduced. It could accomplish A/D conversion, data processing, output displaying and alarming while the temperature exceeds the given threshold. The temperature adjusting devices were bi-direction SCR and heating resistor. The hardware and software were discussed in the paper.Key words: MCU; intelligent stove; temperature controlCLC number: TP273+.5 Document code: A Article ID: 1006-1266(2001)02-0217-041 System DescriptionTemperature is one of the most important values of an object to describe its characteristics. It connects closely with our daily life, and it is also one of the common used four physical values, they are temperature, pressure, flux and position. It is also one of such physical measures that were earliest discussed by people. Its measuring and adjusting are very important for controlling product quality, improving production efficiency and accelerating the development of national economics. A temperature control system of an electrical resistor stove was designed in this paper.The system uses Intel 8031 MCU as main chip to sample, process and display the temperature data, to adjust the stove temperature and to give alarm when the temperature exceeds the given threshold. The system accomplishes the temperature controlling for electrical resistor stove and let the temperature varying according to a given temperature characteristic.2 The System Hardware2.1 Consisting of the hardwareThe system can be divided into two parts according to their functions, data sampling part and system controlling part. Data sampling part consists of temperature sensors (thermocouple TC), amplifiers DWB, data processing and displaying. System controlling part is composed of zero point detecting(ZPD), bi-directi