【摘要】 随着现代化生产和科学研究的发展,人们对温度过程控制的要求越来越高。文章介绍以单片机P89C668为核心的智能温度控制系统。它使用一线制数字温度传感器DS18B20采集温度,与传统测温装置相比,具有结构简单,测温精度高、应用面广等特点。另外,系统还扩展了和上位计算机的串行通信,实现远程监控。整个系统不但成本低廉、而且使用和扩展方便,可广泛应用于人们日常生活、工农业生产和科学研究领域,为广泛深入应用提供了借鉴。更多还原

【Abstract】 With the development of moden industry and science research, it is higher of the demand of temperature controlling. The article introduces the intellectual temperature control system based on single chip microcomputer of P89C668. It makes use of 1-Wire digital temperature sensor of DS18B20 to collect temperature. Compared with the traditional measuring system, it features simple construction, accurate measuring and wide application. In addition, it develops serial communication of PC, achieves long-distance monitor and control. This system is low-cost and convenient to use. It can apply to people’s daily life, scientific research and industrial and agricultural production.更多还原