一种车云协同计算的排放路谱分析方法,以一定周期采集车辆位置坐标和发动机排放的氮氧化合物PPM浓度,对采集的轨迹点坐标进行二次滤波平滑,并获取车辆运行过程中路网信息,利用隐马尔科夫算法对所述平滑处理后的经纬度信息和路网信息进行路网匹配,得到匹配后的车辆行驶的道路信息;根据匹配后的车辆路网坐标点和对应PPM浓度值计算得到车辆排放路谱值。本发明将汽车位置坐标点标记与真实地图路网紧密结合,将现有采集的位置点排放路谱信息真实反映在汽车行驶路网上,使得到的排放路谱信息更为精确,通过道路排放图谱监控城市道路排放状况,促进改善以传统高碳能源为代表道路交通模式,往清洁能源发展,提高城市环境质量。
The invention discloses an emission road spectrum analysis method for vehicle cloud cooperative computing. Collecting vehicle position coordinates and the concentration of oxynitride PPM discharged byan engine in a certain period; carrying out secondary filtering smoothing on the collected track point coordinates, obtaining road network information in the vehicle running process, and carrying outroad network matching on the longitude and latitude information subjected to smoothing processing and the road network information by utilizing a hidden Markov algorithm to obtain matched vehicle running road information; and calculating to obtain a vehicle emission road spectrum value according to the matched vehicle road network coordinate point and the corresponding PPM concentration value. According to the invention, the automobile position coordinate point marks are tightly combined with the real map road network; existing collected position point emission road spectrum information is truly reflected on an automobile driving road network, so that the obtained emission road spectrum information is more accurate, the urban road emission condition is monitored through a road emission map, improvement of a road flow mode taking traditional high-carbon energy as a representative is promoted, development to clean energy is promoted, and the urban environment quality is improved.
一种车云协同计算的排放路谱分析方法
2024-04-02
Patent
Elektronische Ressource
Chinesisch
IPC: | G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung / G01D MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE , Anzeigen oder Aufzeichnen in Verbindung mit Messen allgemein / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |