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Information processing system

An information processing system and road technology, applied in the field of information processing systems, can solve problems such as processing load and adverse effects of processing time

Inactive Publication Date: 2018-09-28
DENSO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Incidentally, when the difference map data for map data update is provided from the distribution center to the electronic device owned by the user, in order to suppress the traffic, it is considered that only the difference for the lowest layer data having detailed road network information Map data is sent from the distribution center to the electronic device, but in this case, it is necessary to determine the amount of change in the road network from the differential map data for the lowermost layer data and convert the amount of change into information for updating the upper layer data. May adversely affect processing load, processing time related to updates

Method used

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Examples

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Embodiment Construction

[0028] Embodiments will be described below in conjunction with the accompanying drawings.

[0029] The navigation device 10 of this embodiment is a vehicle-mounted navigation device that performs processing using road map data (hereinafter simply referred to as "map data"), such as figure 1 As shown, a position detection unit 11 , a storage unit 13 , a control unit 15 , an input unit 17 , a display unit 18 and a receiving unit 19 are provided.

[0030] The position detection unit 11 detects the current position of the vehicle on which the navigation device 10 is mounted, and employs, for example, a configuration including a well-known gyroscope, a distance sensor, and a GPS receiver.

[0031] On the other hand, the storage unit 13 is constituted by a hard disk drive, a flash memory, etc., and stores a program group and various data used by the control unit 15 . Specifically, the storage unit 13 stores initial map data mounted on the navigation device 10 at the time of shipmen...

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Abstract

An information processing system of the present invention is provided with the following: a memory device (13) that stores roadmap data wherein level data which represents road networks of specific road ranks for a specific region, is provided for each road rank; an acquisition device (19) that acquires differential level data from an external memory device (100) that stores the differential leveldata which represents new road networks by using differences between road networks represented by the level data for each road rank; and a generation device (15A, S110-S170) that generates updated map data reflecting new road network information by combining the level data and the differential level data for each of the road ranks.

Description

[0001] This application is a divisional application of the original application with an application date of March 20, 2013, an application number of 201380004470.9, and an invention title of "Information Processing System". [0002] Cross-reference of related applications [0003] This disclosure is based on Japanese application number 2012-81607 for which it applied on March 30, 2012, and uses the description content here. technical field [0004] The present disclosure relates to an information processing system Background technique [0005] Conventionally, as an electronic device that executes processing using map data, there is known an electronic device that displays a road map to the user, searches for a route to a destination, or provides a car navigation system that guides a route to a destination. devices, smartphones and other electronic devices. In addition, as such an electronic device, there is known an electronic device that updates the map data stored in the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/32
CPCG09B29/003G01C21/3815G01C21/3859G01C21/3878
Inventor 铃木孝光
Owner DENSO CORP
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