Title :
A smart thermal environment monitor based on IEEE 1451.2 standard for global networking
Author :
Wang, Yanfeng ; Nishikawa, Makoto ; Maeda, Ryuichi ; Fukunaga, Masaichi ; Watanabe, Kenzo
Author_Institution :
Res. Inst. of Electron., Shizuoka Univ., Hamamatsu, Japan
Abstract :
A networkable "plug-and-play" thermal environment monitor is developed which uses a thermistor and a polyimide-film sensor for indoor temperature and relative humidity (RH) measurements, respectively. The interface includes the relaxation oscillators for signal conditioning and a one-chip 16-bit microcomputer for networking. The microcomputer accommodates the calibration tables as well as the mandatory transducer electronic data sheets specified by IEEE 1451.2 Standard. The on-line calibration using the calibration table allows /spl plusmn/0.1 /spl deg/C accuracy in the temperature measurement range from -20 /spl deg/C to 50 /spl deg/C and /spl plusmn/3%RH accuracy in the RH measurement range from 10% to 90% RH. Measured data can be remotely monitored through Internet.
Keywords :
IEEE standards; Internet; computerised instrumentation; computerised monitoring; humidity measurement; thermal variables measurement; thermistors; IEEE 1451.2 standard; Internet; global networking; indoor temperature measurement; one-chip 16-bit microcomputer; online calibration; plug-and-play thermal environment monitor; polyimide-film sensor; relative humidity measurement; relaxation oscillator; signal conditioning; smart thermal environment monitor; thermistor; transducer electronic data sheet; Calibration; Humidity measurement; Intelligent sensors; Microcomputers; Monitoring; Oscillators; Temperature sensors; Thermal sensors; Thermistors; Transducers;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 2003. IMTC '03. Proceedings of the 20th IEEE
Conference_Location :
Vail, Colorado, USA
Print_ISBN :
0-7803-7705-2
DOI :
10.1109/IMTC.2003.1207977
