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Route length calculation apparatus and route length calculation method

A path length and path technology, applied in the field of path length calculation devices

Inactive Publication Date: 2009-03-25
DENSO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, like the above-mentioned route search device, the conventional route search device and route search method only obtain the shortest route between the departure point and the destination, so there are cases where roads that the user has never passed are included in the route.

Method used

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  • Route length calculation apparatus and route length calculation method
  • Route length calculation apparatus and route length calculation method
  • Route length calculation apparatus and route length calculation method

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Embodiment Construction

[0043] Hereinafter, the path length calculation device of the present invention will be described with reference to the drawings. However, the present invention is not limited to the following description, and attention should be paid to the matters related to the invention described in the claims and their equivalents.

[0044] Hereinafter, a path length calculation device according to a first embodiment of the present invention will be described.

[0045] The route length calculation device according to the first embodiment of the present invention is mounted on, for example, a vehicle, and calculates the route length between a plurality of points within a limit to the route that the vehicle has passed before. For this reason, the path length calculating means is near the place where the event to be recorded (for example, performing an operation such as changing the set temperature or setting the air conditioner to the internal air circulation mode) occurs, and the path thro...

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Abstract

The present invention provides a route length calculation apparatus, comprising a location detection unit for acquiring current location of a mobile object; an event detection unit for detecting the occurrence of an applicable event; a route history information storage unit for storing, upon occurrence of a first event, past route information containing at least the point of occurrence of the first event; and a distance calculation unit for calculating, when occurrence of a second event is detected by the event detection unit, the shortest route length between the point of occurrence of the second event acquired by the location detection unit and the point of occurrence of the first event along a route that the mobile object has traveled before.

Description

technical field [0001] The present invention relates to a path length calculation device, a path length calculation method, a path length calculation program, an air conditioner for a vehicle, and a control device for a device mounted on a moving object, and more particularly to a path for calculating the shortest path length from a predetermined point of interest to a destination A length calculation device, a path length calculation method, a path length calculation program, and a vehicle air conditioner using these to optimize the air conditioning setting for a predetermined position. Background technique [0002] In recent years, various navigation systems for route searching have been developed. Navigation systems are not limited to in-vehicle use, but are also mounted on portable terminals, and are gradually being widely used. In such a navigation system, it is important to accurately determine the shortest route from the starting point to the destination. Therefore,...

Claims

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Application Information

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IPC IPC(8): G01C21/34B60H1/00
CPCB60H1/00771B60H1/00735G01C21/34
Inventor 原孝介坂仓义明岩崎弘利竹田弘小岛康史原哲也
Owner DENSO CORP
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