Title :
Smart Sensor Network for Air Quality Monitoring Applications
Author :
Postolache, O. ; Pereira, M. ; Girão, P.
Author_Institution :
Inst. de Telecomunicacoes, DEEC, Lisboa
Abstract :
The work presents a network for indoor and outdoor air quality monitoring whose nodes include tin dioxide sensor arrays connected to an acquisition and control system with WiFi communication capabilities. To increase the gas concentration measurement accuracy and to prevent false alarms, two gas sensor-influencing quantities, temperature and humidity, are also measured. Advanced processing based on multi-input single-output neural networks is implemented at the network sensing nodes in order to obtain temperature and humidity compensated gas concentration values. Anomalous operation of network nodes and power consumption are also discussed
Keywords :
air pollution measurement; gas sensors; intelligent sensors; tin compounds; SnO2; WiFi communication; air quality monitoring; gas concentration measurement accuracy; multiinput neural networks; network sensing nodes; signal acquisition; single-output neural networks; smart sensor network; tin dioxide sensor arrays; Communication system control; Control systems; Gas detectors; Humidity measurement; Intelligent sensors; Monitoring; Sensor arrays; Sensor systems; Temperature sensors; Tin; air quality; neural networks; wireless networks;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 2005. IMTC 2005. Proceedings of the IEEE
Conference_Location :
Ottawa, Ont.
Print_ISBN :
0-7803-8879-8
DOI :
10.1109/IMTC.2005.1604174
