摘要:
A map updating system that stores map data and a priority sequence table, acquires first update data and second update data of the map data according to the priority sequence table, and updates the map data based on the first update data and second update data according to the priority sequence table.
摘要:
A CPU of a navigation apparatus stores public keys to which priorities are set and which are published by an information distribution center in a public key storage section. The CPU of the navigation apparatus extracts an electronic signature of distribution data which is distributed from the information distribution center and verifies the electronic signature by using only ‘valid’ public keys among the public keys in order of the priorities. The CPU of the navigation apparatus determines that the distribution data is valid information which is distributed from the information distribution center when the electronic signature passes verification.
摘要:
A map updating system that stores map data and a priority sequence table, acquires first update data and second update data of the map data according to the priority sequence table, and updates the map data based on the first update data and second update data according to the priority sequence table.
摘要:
A CPU of a navigation apparatus stores public keys to which priorities are set and which are published by an information distribution center in a public key storage section. The CPU of the navigation apparatus extracts an electronic signature of distribution data which is distributed from the information distribution center and verifies the electronic signature by using only ‘valid’ public keys among the public keys in order of the priorities. The CPU of the navigation apparatus determines that the distribution data is valid information which is distributed from the information distribution center when the electronic signature passes verification.
摘要:
When updating means 24 for performing a differential update on map data M using update data U performs an update on the map data M using update data U stored on a recording medium R, update data U having section identification information that matches the section identification information of the map data M and a later update version than the update version of the map data M are extracted from the plurality of update data U stored on the recording medium R, and a differential update is performed on the map data M using the extracted update data U.
摘要翻译:当使用更新数据U执行对地图数据M的差分更新的更新装置24使用存储在记录介质R上的更新数据U来对地图数据M执行更新时,具有与区段标识信息匹配的段识别信息的更新数据U 从存储在记录介质R上的多个更新数据U中提取地图数据M和比地图数据M的更新版本更新的版本,并且使用提取的更新数据对地图数据M执行差分更新 U.
摘要:
When updating means 24 for performing a differential update on map data M using update data U performs an update on the map data M using update data U stored on a recording medium R, update data U having section identification information that matches the section identification information of the map data M and a later update version than the update version of the map data M are extracted from the plurality of update data U stored on the recording medium R, and a differential update is performed on the map data M using the extracted update data U.
摘要翻译:当使用更新数据U执行对地图数据M的差分更新的更新装置24使用存储在记录介质R上的更新数据U来对地图数据M执行更新时,具有与区段标识信息匹配的段识别信息的更新数据U 从存储在记录介质R上的多个更新数据U中提取地图数据M和比地图数据M的更新版本更新的版本,并且使用提取的更新数据对地图数据M执行差分更新 U.
摘要:
A data updating system includes a navigation device running according to a predefined application program; and a server providing the navigation device with a differential data file for updating a database containing road network data. The navigation device includes a navigation memory storing a local database in an updating data format in which the road network data is arranged in the order of data types and to be updated with the differential data file; and a navigation controller that converts data stored in the local database so as to have the reference data format in which the road network data is arranged in the order of connection of the road network to be referenced to by the application program. The server includes a server controller that outputs the differential data file to be provided to the navigation device.
摘要:
A map update data supply apparatus includes: isolation detection means for detecting the presence and the absence of an isolated state in which some of the roads are isolated from other roads in a road network of target map data due to updating of one or more update target segments of the target map data based on update map data; extraction means for extracting, as update required segments, segments of the update map data, other than the update target segments, that have a road that connects to the isolated some of the roads when it is detected that there is the isolated state; and update data file generating means for generating update data files for the update target segments and the update required segments based on the update map data.
摘要:
A program update device includes: a first storage unit to retain a program of a first version; a second storage unit to retain a program of a second version equal to or later than the first version; an acquiring unit to acquire a difference between the program of the second version and a program of a third version later than the second version; and an update unit to generate the program of the third version from the program of the second version that is stored in the second storage unit and the difference acquired by the acquiring unit, and to store the generated program of the third version in the first storage unit.
摘要:
Map updating systems, methods, and programs that extract update requiring sections with respect to an update requesting section that is one of the sections being a target of an update request requesting that the target map data should be updated, obtain the information related to the guaranty versions respectively corresponding to the extracted update requiring sections by referring to the version table, the update requiring sections each being one of the sections that needs to be updated in order to guarantee integrity between the sections that are positioned adjacent to each other after the update requesting section has been updated, and generate, based on the update-purpose map database, one of the update data files regarding the update requesting section as well as other ones of the update data files regarding the update requiring sections and having the update versions indicated as the guaranty versions.