摘要
提出一种基于DS18B20和AT89C51的多路温度监测系统,详细介绍了系统的硬软件设计。该设计通过DS18B20单总线结构与单片机多路并行输入相结合的硬件改进方式,克服了DS18B20采用单总线结构时温度数据读取慢、单总线驱动能力不足的问题,实现了多路温度实时快速读取和巡回监测。该系统还具有超温报警,与上位机通讯等功能。最后,利用Proteus与Keil C51软件联合仿真实现了设计的仿真调试。
A multi-channel temperature monitoring system hased on DS18B20 and AT89C51 is presented. The system＇s hardware and software design methods are described in detail. By the improved mode combining DS18B20 lwire-bus structure with multiple parallel input of AT89C51, the deficiencies such as the slow temperature data acquisition and insufficient 1-wire bus driving ability were overcome, and then the functions of real-time multi-channel temperature reading and tour temperature monitoring were realized. The system also has the functions of high-temperature alarm and communication with PC. The simula- tion debugging was realized by Proteus and Keil C51 softwares.
出处
《现代电子技术》
2013年第10期122-124,127,共4页
Modern Electronics Technique
