30-05-2012, 11:31 AM
APPLICATION OF ZIGBEE FOR POLLUTION MONITORING CAUSED BY AUTOMOBILE EXHAUST GASES
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Gases emitted from automobile exhausts have been monitored using a gas sensor arrays. The information from the sensor array has been transmitted to a remote location by ZigBee wireless technology. Quantitative and qualitative analysis of gases has been conducted at the remote location by a computer. Programs have been developed in LabView and excel to display data and alarm conditions. Results indicate that unlike the automobiles using natural gas the unleaded and premium unleaded fuel automobiles can have significant effect on the environment conditions due to their high level of toxic gas emission.
The ranges of electromagnetic frequencies are above the audio range and below visible light. All broadcast transmission, from AM radio to satellites, falls into this range. Radio Frequency (RF) itself has become synonymous with wireless and high-frequency signals, describing anything from AM radio from 535 kHz to 1605 kHz to computer LANs at 2.4 GHz. However, Radio Frequency has traditionally defined frequencies from a few kHz to ~ 1 GHz with Microwave being the consideration.
[attachment=23467]
Gases emitted from automobile exhausts have been monitored using a gas sensor arrays. The information from the sensor array has been transmitted to a remote location by ZigBee wireless technology. Quantitative and qualitative analysis of gases has been conducted at the remote location by a computer. Programs have been developed in LabView and excel to display data and alarm conditions. Results indicate that unlike the automobiles using natural gas the unleaded and premium unleaded fuel automobiles can have significant effect on the environment conditions due to their high level of toxic gas emission.
The ranges of electromagnetic frequencies are above the audio range and below visible light. All broadcast transmission, from AM radio to satellites, falls into this range. Radio Frequency (RF) itself has become synonymous with wireless and high-frequency signals, describing anything from AM radio from 535 kHz to 1605 kHz to computer LANs at 2.4 GHz. However, Radio Frequency has traditionally defined frequencies from a few kHz to ~ 1 GHz with Microwave being the consideration.