摘要
本文论述了采用半导体热敏电阻实现粮仓温度自动检测的测量原理，采用矩阵式总线、多级分选、以少数控制电缆线实现大规模集中巡检的通道控制方法，介绍了粮仓温度巡检仪的硬件设计及软件，并进行了误差分析。
This paper presents the principle of grain storage temperature automatic roundmeasurement by semiconductor thermistors. The authors employ a multi─channel control tech-nique Matrix Bus and Multi-level Selection to realize centralized round measurement of large-scale measured data with only a few control wires. The hardware and software design of the in-strument is introduced in the paper,and error analysis is also given.
出处
《郑州粮食学院学报》
1994年第3期92-97,共6页
Journal of Zhengzhou Institute of Technology
关键词
粮仓
温度
测量
自动巡检仪
Temperature measurement
automatic round measurement
thermistor
intelli-gent instrument
microprocessor application
