Airport Noise Dynamic Isoline Based On Irregular Grid Layout Monitoring Points

With the rapid development of China's civil aviation and the gradual awakening of the people's Environmental consciousness, the airport noise pollution is worsening for the surrounding environment.Airport noise problem is obtaining an increasing attention and concern from airports, airlines and the public.Visualization of airport noise plays an important role in evaluating the airport noise impact in the vicinity of airports. The airport noise dynamic isoline map can facilitate analysis of the regional influence of airport noise each time of the day for the airport managers, and provide scientific decision for formulating effective noise reduction measures and reasonable land use planning around airport.Airport noise monitoring points irregular grid layout based on the Internet of things has has its advantages of flexible deployment and perception oriented. However, Airport noise monitoring points irregular grid layout is adverse to airport noise isoline map.In view of the above question, after analyzing airport noise characteristics and distribution, this paper analyzes the domestic and international research status of airport noise visualization then presents a kind of efficient parallel algorithm model adapting to airport noise dynamic isoline map based on the airport noise monitoring points irregular grid layout. Author explains the importance of airport noise monitoring points irregular grid layout to the airport noise monitoring system at first, and then analysis the problem that the noise monitoring points irregular grid will bring. In this paper author analysis the literatures of airport noise visualization,and combine airport noise prediction and airport noise contours then get a parallel model of the airport noise monitoring points irregular grid layout.Aiming at the airport noise monitoring point pan grid layout distribution characteristics,taking if the regional monitoring point density can support a direct rendering noise contour as the regional division principle, divide the airport noise monitoring regional into several areas. With the completion of the regional division, the airport noise isoline drawing task also divided into each region contour drawing sub tasks, then establishment of parallel contour drawing model. As to the not directly drawing noise contour region, using the airport historical monitoring noise data and the prediction software of the airport noise, authorproposed an algorithm of how to generate this kind of region's noise data, to make it network data format for each region, then using the contour tracking algorithm handle the grid data to generate the contour tracking path. In the end, connect the contour tracking path in each region, then fitting, complete the drawing of a contour map, use the algorithm in this paper to make up the difference between data transmission and dynamic rendering, drawing dramatic noise contour map of the airport.