&nbsp;The United Control System of Fog and Haze Distribution Based on Vision Sensing <br>

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Journal of Nanjing University(Natural Sciences) ›› 2015, Vol. 51 ›› Issue (2) : 234-242.

The United Control System of Fog and Haze Distribution Based on Vision Sensing

Ruan Ya-Duan，Chen Xiang-Jun，Chen Qi-Mei

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Abstract

The dynamic regional distribution of fog and haze reflects pollution source distribution and road traffic situation. It is related to people’s health and driving safety. But the current instruments on visibility and PM2.5 are expensive and the measurement range is so limited. So it’s too costly to increase monitoring points to cover the whole region which makes the sampling data is too sparse to form the regional distribution of fog and haze. Therefore, this paper designs the united control system of fog and haze distribution and security early-warning by means of vision sensing, on the basis of the existing environment monitoring system and the intelligent traffic system (ITS). A new three-dimensional information aggregation network framework is introduced and the massive data center is construction to provide a kind of unified information service interface for the compatibility, information share and interactive among the heterogeneous application systems. The distribution of visibility is obtained based on the camera calibration method and video visibility detection model, taking advantage of a large number of video surveillance of the road network. The intrinsic relationship reveals the regional distribution of PM2.5 with the visibility distribution data through the analysis of correlation on the visibility and particles. The paper also descripts the data processing of the information fusion center in detail and gives some early-warning or auxiliary decision advice for fog and haze monitoring. The experimental system for traffic safety has been applied to the Ning Huai Expressway southern section and plays an important role in the haze black spot of Laoshan hills.

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Ruan Ya-Duan，Chen Xiang-Jun，Chen Qi-Mei
. The United Control System of Fog and Haze Distribution Based on Vision Sensing
[J]. Journal of Nanjing University(Natural Sciences), 2015, 51(2): 234-242

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