基于车联网获取行政区域编码的方法研究

Research on the Method of Obtaining Administrative Area Codes Based on the Internet of Vehicles

提出了一种根据经纬度获取行政区域编码的离线方法,并应用于车联网行业中,突破了传统公共地图接口服务调用量和并发量上的限制。利用Python技术抓取全国所有城市边缘坐标信息及行政区域信息,依次计算其经纬度并判断其是否在各城市边缘点所组成的多边形区域内,最终确定该坐标的行政区域编码。该方法结合Thrift技术并采用分布式处理机制,建立RPC服务,增强了系统的稳定性和可靠性。实验表明,相比传统公众平台在线获取行政区域编码的方法,该方法可无限次被调用,可扩展性更好,对于提高地理位置统计系统性能及降低对在线地图的强依赖性具有重要意义。

An off-line method to obtain the administrative region code according to the longitude and latitude is proposed and applied to the internet of vehicles industry,which breaks through the limitation of the traditional public map interface service in the volume of invocations and concurrency.Python technology is used to capture all the information of urban edge coordinates and administrative areas in China.Then it calculates the latitude and longitude in turn and judges whether it is in the polygonal region composed by the edge points of each city,and finally determines the administrative area code of this coordinate.This method combines thrift technology and adopts a distributed processing mechanism to establish an RPC service,enhancing the stability and reliability of the system.Experiment results show that compared with the method of online acquisition of administrative area codes of the traditional public platform,this method that can be called an infinite number of times has faster processing speed and better scalability.It has great significance for improving the performance of geographic location statistics system and reducing the strong dependence on online map.