Using Location-Based Services to Build a Mobile Air Quality Warning System
Date Issued
2014
Date
2014
Author(s)
Chien, Yu-Feng
Abstract
Due to the developing of geographic information technologies, and the popularity of both mobile devices and wireless networks, promote location-based service (LBS) are widely applied. Mobile device users are now able to enjoy the convenience of obtaining necessary information whenever and wherever. In this study, we use the concept of volunteered geographic information (VGI), and the use of location-based service applications, combined with real-time traffic information of main streets in Taipei, to estimate the concentration of carbon monoxide pollution, furthermore, an air quality warming system mobile applications (APP) is established in the Android platform.
A considerable number of studies have been made on various urban air pollution factors. However, there are few practical cases refer to the relationship between the actual real-time traffic conditions and the conversion of air quality. In this study, we access real-time traffic information offering by vehicle detectors on main streets constructed by the Department of Transportation, Taipei city government, then compute the concentrate of CO referring to vehicle emission factor published by EPA. At the meantime, the diffusion of carbon monoxide is assumed by the concept of street canyon to estimate a spatial carbon monoxide concentration model.
To evaluate the model, we compare the carbon monoxide concentration data provided by the nearest EPA air quality monitoring stations, the result indicate that the estimating carbon monoxide concentration in this study is very close to the real data, showing that model has a certain credibility.
Mentioned on the application of location-based services, the air quality warning system APP shows real-time air pollution information with grading colors on Google Maps, remind users to avoid poor air quality sections.
Subjects
即時路況
空氣汙染
適地性服務
自願性地理資訊
行動裝置APP
SDGs
Type
thesis
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