Abstract
As the industry and the society developing, the temperature becomes more and more important and a lot of products are sensitive to temperature. However, temperature-measuring apparatus in the market now only can check and measure the temperature of one point, at the same time, the temperature information is not real time and the precision is low. It takes a great of troubles for the industry-controllers to make decision. In this situation, design and implement one applicable system which can watch measure and control the temperature and the measuring results is real time and the precision is great is more essential. In order to meeting this application, this paper talk about The Multiple-Point’s temperature Measuring System.Exploring the methods and system structure of temperature measurement in industrial situation. This system based on single chip computer, can inspect and control multiple temperatures in real time. Methods Forming temperature measurement system by means of digital temperature sensor DS18B20. Creating a temperature measurement system by using simple I/O port and single chip microcomputer which has LED, and providing the applied circuit and reference program by means of DS18B20 and AT89S51. According to the structure characteristics of DS18B20, which occupy less system ports. This temperature measurement system is appropriate to tem perature test system based on long-distance and multi-ports.
Keywords: single chip computer、DS18B20、temperature-measuring