摘要
利用数字温度传感器DS18B20与AT89C52单片机组成基于LabVIEW单总线的温度监测网络,实现了大范围环境内大量待测点温度的在线监测,并具有超温报警、数据存储和随时打印功能。所有数字温度传感器通过1根三态I/O口与单片机相连,现场布线方便、可靠。系统中传感器可以自动在线“注册”或“注销”,满足被测物体数量及位置频繁变动的场合。
Based on LabVIEW and 1-wire bus, a temperature detceting network has been constituted by using digital thermometer DS18B20s and microprocessor AT89C52, which can monitor temperatures of a large quantity of positions in distributed surroundings. Alarms will send out once the temperature is out of the set range, and all of the temperature datas can be stored and printed out. All DS18B20s are connected with AT89C52 through a three-state interface, which makes the line-arrangement convenient and dependable. The login and logout on line of DS18B20s are suitable for the number and position changes of thermometers.
出处
《农机化研究》
北大核心
2004年第3期99-101,共3页
Journal of Agricultural Mechanization Research
基金
华侨大学科研基金项目
关键词
分布式单总线
蔬菜大棚
温度监测
预警系统
串行通讯
atlto-control technology
temperature detecting
design
1-wire bus
serial communication
LabVIEW
green house
