利索-全球专利检索

  1. 登录
  2. 注册
发明授权
CN101162149B 一种联网车载导航终端实现远程快速更新地图导航数据的方法 有权

一种联网车载导航终端实现远程快速更新地图导航数据的方法
摘要：
本发明涉及一种联网车载导航终端中实现远程快速更新导航地图数据的方法，首先将全国导航地图数据进行分幅切割，形成多个图幅；当车载导航终端向导航服务中心发起地图更新请求时，导航服务中心将升级数据包下发到车载导航终端上；车载导航终端接收到完整的升级数据包后以图幅为单位，对车载导航终端的导航地图文件进行更新；本发明采用单元分割的方式将大型地图数据分割成图幅单元，更新1个图幅单元的数据只需传输受到影响的该图幅单元，最多只需要增加更新相邻的8个图幅单元的数据，从而可快速、及时地实现车载导航终端地图数据的远程更新。
摘要（英）：

The invention relates to a method for performing quick and remote updating navigating map data in networked vehicle navigating terminal, wherein, countrywide navigating map data is cut into a plurality of map sheets in a separation way; when a vehicle navigating terminal applies to a navigating serve center for updating map, the navigating serve center gives an updating data package to the vehicle navigating terminal; after receiving a whole updating data package, the vehicle navigating terminal updates the navigating map file in a unit of map sheet; the invention adopts unit-cutting method to cut a big map data into map sheet units, when the data of one map sheet unit is needed to update, only the influenced map sheet unit is needed to be transmitted, the data of at most 8 map sheet units adjacent to the updated map sheet unit are needed to add, thus, a quick and in-time remote update of vehicle navigating terminal map data can be realized.

公开/授权文献
0/0