基于 STC89C52 单片机的多点温度检测系统设计摘 要随着社会进步和工业技术的进展，人们越来越重视温度因素，许多产品对温度范围要求严格，而目前市场上存在的温度检测仪器普遍都是单点测量，同时有温度信息传递不及时、精度不够的缺点，不利于工业控制者根据温度变化及时做出决定。在这样的形势下，开发一种可以同时测量多点，并且实时性高、精度高，能够综合处理多点温度信息的测量系统就很有必要。本文详细阐述了以单片机为核心的温度控制系统。它是利用热敏电阻采集温度信号，将阻值变化转换为电压信号，经放大电路放大、A/D 转换后送到单片机中，并将与其设定温度限值比较，控制温度在一定范围内，从而构成了一个多路温度控制系统。最后针对温度控制系统进行了 Proteus 实验仿真，通过对仿真的分析表明本文所述的基于单片机的多路温度采集系统的设计的合理性和有效性。关键词：单片机；温度显示；多路数据采集；热敏电阻Based on the STC89C52 MCU multipoint temperature measurement system designAbstractAs 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 talks about The Multiple-Point’s temperature Measuring System.In this paper, it detailed temperature control system with the core single chip microcomputer. It is a collection of temperature using temperature sensor signal, the signal into voltage signal amplification by the amplifier circuit, A/D conversion ...
