摘要
采用数字温度传感器DS18B20,通过AT89C2051单片机进行温度数据的采集和存储,通过RS-485总线传输。利用最小二乘法的原理,对常温下测量的数据进行了处理,在-55℃到+125℃测量范围下,使得测量精度可以达到0.5级。
The DS18B20D as the sensors and the AT89C2051 as the MCU are used to sampling and processing the temperature data,and it is transmitted by RS485 bus.The Partial Least Squares （PLS） is used to improvement the data precision under the normal temperature.It can approach 0.5 grad of temperature measurement bounded from -55℃ to 125℃.
出处
《工业控制计算机》
2008年第11期25-25,28,共2页
Industrial Control Computer
关键词
温度测量
数据处理
最小二乘法
temperature measurement,data processing,partial least squares
