便携式多点温度采集系统  

Portable Multi-point Temperature Collecting System

作　　者：唐为义[1] 王艳霞[1] 刘蕾[2] 

机构地区：[1]青岛科技大学自动化与电子工程学院,山东青岛266042 [2]东北大学机械工程与自动化学院,辽宁沈阳110004

出　　处：《仪表技术与传感器》2007年第11期50-51,54,共3页Instrument Technique and Sensor

摘　　要：系统采用DS18B20-PAR单总线工作方式和无需内部单独供电的寄生电源供电工作方式,解决了传统的测温系统硬件结构复杂、测温系统中的引线误差补偿问题。软件设计中采用多传感器Kalman滤波技术、软件容错技术,实现多信号的采集和数据处理。在长距离测量中,给出了系统硬件匹配中的改进意见。通过货仓应用,验证了系统硬件构成的可行性和优点。The 1-wire bus and the DS18B20- PAR＇s parasite power circuit that allows the DS18B20- PAR to operate without a local external power Supply were adopted. The complexity of hardware configuration and the problem of error compensation of lead wire were avoided. The multi-sensor technique based on Kalman filter and the fault tolerant technique were adopted. Finally, signal acquisition and data processing were realized. The mend of hardware matching was given in a long distance measurement. By using it in the storage, the feasibility and merit of the system were confirmed.

关 键 词：DS18820-PAR 温度采集 寄生电源 KALMAN滤波 容错技术 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]