The invention provides a real-time road condition analyzing and positioning method, which comprises the following steps of dividing grids from a coordinate origin by adopting longitude and latitude grids according to the preset coordinate origin, longitude interval and latitude interval, and displaying the grids of a specified area on a map; quickly positioning a corresponding grid according to longitude and latitude coordinates of the positioning data, and associating the grid with a road section in the grid; further processing a plurality of road section factors in the grid in subsequent steps so as to determine a specific road section corresponding to a certain signal; and judging the inclusion relation between the positioning data and the buffer area of the road section, finding out the road section containing the positioning data, matching the direction of the positioning data with the direction of the road section, finally obtaining the road section with the most accurate positioning data, and calculating the road condition according to the instantaneous traffic flow and the vehicle speed in the road section.
本发明提供一种实时路况分析与定位方法,采用经纬网格,根据预先设置的坐标原点及经度间隔和纬度间隔,从坐标原点划分网格,并在地图上显示指定区域的网格;根据定位数据的经纬度坐标,快速定位到对应的网格,通过网格关联到网格内的路段;对于网格内多个路段因素,在后续步骤中进一步处理,以确定某一信号对应的具体路段;对定位数据与路段的缓冲区做包含关系判断,找到包含定位数据的路段,之后对定位数据的方向与路段方向做匹配,最终得出定位数据最准确的路段,并根据路段内的瞬时车流量及车速进行路况计算。
Real-time road condition analyzing and positioning method
一种实时路况分析与定位方法
2020-05-15
Patent
Electronic Resource
Chinese
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