摘要
系统采用单片机和DS18B20温度传感器,构成温度的多点检测和控制系统.DS18B20通过单总线进行通信,即仅需要一条数据线(和地线)就能与中央微处理器进行通信.现场温度直接以One-wire(一线总线)的数字方式传输.适合于恶劣环境的现场温度测量,如:环境控制、设备或过程控制、测温类消费电子产品等.将DS18B20应用在蔬菜大棚的多点温度测控系统中,系统的各项技术指标均达到或超过了设计要求.
A multi - point temperature checking and controlling system can be formed in the use of MCU and DS18B20 temperature transducer. DS18B20 communicates communicate with the central microprocessor by using one data through one -wire, which means, it can wire （and ground wire）. The occasion temperature communicates by the one - wire directly by the means of digital. Alarm search command i- dentifies and addresses devices whose temperature is outside of programmed limits （temperature alarm condition）. Applications include thermostatic controls, industrial systems, consumer products, thermometers, or any thermally sensitive system. All of the technical indexes of the design requirement have been met or even exceeded when applying the DS18B20 to the multi -point temperature checking and controlling system of the greenhouse.
出处
《湖北民族学院学报（自然科学版）》
CAS
2008年第2期187-189,共3页
Journal of Hubei Minzu University(Natural Science Edition)
基金
湖北省教育厅中青年项目(Q20082904)
