Map update data supply device and method
First Claim
1. A map update data supply device that is connectable to a navigation device that includes a map database via a communication network, the map update supply device being configured to supply data for updating the map database to the navigation device, the map database including at least road network information and being divided into a plurality of sections, the map update data supply device comprising:
- a storage device including an update map database configured tomanage versions of an update data file for updating a difference in the map database for each of the sections, andstore the update data file of each of the versions for each of the sections; and
a control device includinga request update data extraction unit configured to, based on an update request from the navigation device,extract a request update section that is a section for updating the difference, andextract, for each request update section, the update data file of up to a latest version,a safeguard update data extraction unit configured to, if all request update sections are updated up to the latest version,extract a safeguard update section that is a section needed to be updated to ensure a road network connection between adjacent sections, andextract, for each safeguard update section, the update data file of up to an update safeguard version that is a version needed to be updated to ensure the road network connection,an integrated data generation unit configured togenerate a request update integrated data file for a single time of difference update by integrating, for each request update section, all versions up to the latest version of the update data file for each request update section extracted by the request update data extraction unit, andgenerate a safeguard update integrated data file for a single time of difference update by integrating, for each safeguard update section, the update data file up to the update safeguard version for each safeguard update section extracted by the safeguard update data extraction unit, andan integrated data supply unit configured to supply, to the navigation device, the request update integrated data file and the safeguard update integrated data file generated by the integrated data extraction unit.
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Accused Products
Abstract
A map update data supply device and method includes an update map database of per section versions of an update data file, and a request update data extraction unit for extracting a request update section and an update data file. A safeguard update data extraction unit extracts a safeguard update section to safeguard a road network connection between adjacent sections. An integrated data generation unit integrates all versions of the update data file for each extracted request update section and generates a request update integrated data file. The integrated data generation unit integrates, per safeguard update section, versions of the update data file up to the update safeguard version for each extracted safeguard update section, and generates a safeguard update integrated data file. An integrated data supply unit supplies the generated request update integrated data file and the safeguard update integrated data file to a navigation device.
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Citations
12 Claims
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1. A map update data supply device that is connectable to a navigation device that includes a map database via a communication network, the map update supply device being configured to supply data for updating the map database to the navigation device, the map database including at least road network information and being divided into a plurality of sections, the map update data supply device comprising:
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a storage device including an update map database configured to manage versions of an update data file for updating a difference in the map database for each of the sections, and store the update data file of each of the versions for each of the sections; and a control device including a request update data extraction unit configured to, based on an update request from the navigation device, extract a request update section that is a section for updating the difference, and extract, for each request update section, the update data file of up to a latest version, a safeguard update data extraction unit configured to, if all request update sections are updated up to the latest version, extract a safeguard update section that is a section needed to be updated to ensure a road network connection between adjacent sections, and extract, for each safeguard update section, the update data file of up to an update safeguard version that is a version needed to be updated to ensure the road network connection, an integrated data generation unit configured to generate a request update integrated data file for a single time of difference update by integrating, for each request update section, all versions up to the latest version of the update data file for each request update section extracted by the request update data extraction unit, and generate a safeguard update integrated data file for a single time of difference update by integrating, for each safeguard update section, the update data file up to the update safeguard version for each safeguard update section extracted by the safeguard update data extraction unit, and an integrated data supply unit configured to supply, to the navigation device, the request update integrated data file and the safeguard update integrated data file generated by the integrated data extraction unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 10)
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8. A map update data supply method of a map update data supply device supplying data for updating a map database to a navigation device, the map database including at least road network information and being divided into a plurality of sections, the map update data supply method being executed by a control device included in the map update data supply device, the method comprising:
executing, utilizing a computational processing device, a map update data supply method, the map update data supply method including; managing an update map database that manages, for each of the sections, versions of an update data file for updating a difference in the map database, and storing the update data file of each of the versions for each of the sections; extracting, based on an update request from the navigation device, a request update section that is a section for updating the difference, and extracting the update data file of up to a latest version to be supplied to the navigation device for each request update section; extracting, when all request update sections are updated up to the latest version, a safeguard update section that is a section needed to be updated to ensure a road network connection between adjacent sections, and extracting for each safeguard update section, the update data file of up to an update safeguard version that is a version needed to be updated to ensure the road network connection; integrating, for each request update section, all versions up to the latest version of the update data files for each request update section, and generating a request update integrated data file for a single time of difference update; integrating, for each safeguard update section, the update data file up to the update safeguard version for each safeguard update section, and generating a safeguard update integrated data for a single time of difference update; and supplying, to the navigation device, the request update integrated data file and the safeguard update integrated data file. - View Dependent Claims (11, 12)
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9. A non-transitory computer readable media including program instructions, which when executed by a processor cause the processor to perform:
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managing an update map database that manages, for respective section versions of an update data file for updating a difference in a map database, and storing the update data file of the versions for the respective sections; extracting, based on an update request from a navigation device, a request update section that is a section for updating the difference, and extracting the update data file of up to a latest version to be supplied to the navigation device for each request update section; extracting, when all request update sections are updated up to the latest version, a safeguard update section that is a section needed to be updated to ensure a road network connection between adjacent sections, and extracting for each safeguard update section, the update data file of up to an update safeguard version that is a version needed to be updated to ensure the road network connection; integrating, for each request update section, all versions up to the latest version of the update data files for each request update section, and generating a request update integrated data file for a single time of difference update; integrating, for each safeguard update section, the update data file up to the update safeguard version for each safeguard update section, and generating a safeguard update integrated data for a single time of difference update; and supplying, to the navigation device, the request update integrated data file and the safeguard update integrated data file.
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Specification