Patent
Map difference data distribution system, map difference data distribution device, map data maintaining device, update management server, and map difference extraction server
Makoto Yano,Yasutaka Atarashi,Takamitsu Suzuki +2 more
- 09 Apr 2014
3
TL;DR: In this article, a map difference data distribution system is proposed, which includes a map-difference data storage unit, a distribution unit, and a map data maintaining device, where the data items having dependent relationships with the updated data items back to the different version updates are stored.
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Abstract: A map difference data distribution system includes a map difference data distribution device including a map difference data storage unit storing map difference data items and a distribution unit distributing map difference data items, and a map data maintaining device including update unit updating map data based on map difference data items. The map difference data storage unit traces the updated data items and data items having dependent relationships with the updated data items back to the different version updates, and stores the data items as map difference data items. The map difference data distribution device includes a non-updated data extraction unit extracting non-updated data items from the map data maintaining device, a grouping unit grouping the data items in dependent relationships, and a distribution data generation unit generating distribution data by arranging grouped records of non-updated data items from higher priority of map element under specified communication traffic volume.
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Citations
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2
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- 01 Sep 2015
TL;DR: In this paper, the authors present systems and processes for efficiently communicating mapping application data between electronic devices, where a first electronic device can act as a proxy between a second electronic device and a map server by determining a set of supplemental data to add to the first request to generate a complete second request for map data, and transmitting the second request to the map server.
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- 13 Sep 2019
TL;DR: In this paper, a question bank updating method is proposed to solve the technical problem that the question bank update effect is poor, on the premise of not updating the version of the client, the online updating of question bank is realized, and the user experience can be improved, and meanwhile, the client version release cost is reduced.
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Patent
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Patent
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Akinori Asahara,Kenji Naka,Michio Morioka,Hirokazu Inayoshi +3 more
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