IP Library Granted Patent US 12693124
Granted Patent B2
US 12693124 · App. 18/274,301 · Granted Jul 28, 2026

Route search device and computer program

Inventors: Mitsuhiro Nimura (Kariya, JP); Hidenori Nagasaka (Kariya, JP); Keita Ogawa (Kariya, JP)
Assignee: AISIN CORPORATION
G01C21/3423G01C21/3685
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Quick Facts
Patent No.
US 12693124
App. No.
18/274,301
Granted
Jul 28, 2026
Kind
B2
Abstract

There are provided a route search device and a computer program that can search for a recommended route for a user to move to a destination from a parking location after the user parks a vehicle in a parking lot. Specifically, a parking lot network is obtained which is a network representing a route that can be selected in a parking lot by the user with moving means used after getting out of the vehicle; an in-building network is obtained which is a network representing a route that can be selected in a building by the user with the moving means used after getting out of the vehicle; and a recommended route from a parking location where the vehicle is parked in the parking lot to a destination present in the building is searched using a network obtained by connecting the parking lot network to the in-building network.

Claims (22)

1 . A route search device comprising:

a memory storing instructions; and

at least one processor configured to implement:

a parking lot network obtainer for obtaining a parking lot network, the parking lot network being a network representing a route that can be selected in a parking lot by a user with moving means used after getting out of a vehicle the parking lot network;

an in-building network obtainer for obtaining an in-building network, the in-building network being a network representing a route that can be selected within a building to a destination within the building by a user moving after getting out of a vehicle; and

a route searcher for searching for a recommended route from a parking location where a vehicle is parked in a parking lot to a destination present in the building, using a network obtained by connecting the parking lot network to the in-building network,

wherein in the parking lot network, lines which are dividing parking lot spaces are included in a route that can be selected by the user moving after getting out of a vehicle, and

a parking lot network is created using information on lines that mark off the parking spaces in the parking lot,

wherein a walking node is set at each end point of the lines that mark off a parking space, and walking links are set between the walking nodes to construct the parking lot network.

2 . The route search device according to claim 1 , wherein

when there are a plurality of candidate parking locations, the route searcher searches for a recommended route from each of the plurality of candidate parking locations to a destination present in the building, the candidate parking locations being parking locations serving as candidates for parking a vehicle in the parking lot, and

the route search device comprises a parking location selector for selecting, based on results of the search for a recommended route, a parking location recommended to park a vehicle from the plurality of candidate parking locations.

3 . The route search device according to claim 1 , further comprising driver's seat location estimator for estimating a location of a driver's seat in a state in which a vehicle is parked at the parking location,

wherein

the route searcher searches for a recommended route from a location of a driver's seat in a state in which a vehicle is parked at the parking location to a destination present in the building.

4 . A non-transitory computer-readable storage medium storing a computer program for causing a computer to function as:

a parking lot network obtainer for obtaining a parking lot network, the parking lot network being a network representing a route that can be selected in a parking lot by a user with moving means used after getting out of a vehicle;

an in-building network obtainer for obtaining an in-building network, the in-building network being a network representing a route that can be selected within a building to a destination within the building by a user moving after getting out of a vehicle; and

a route searcher for searching for a recommended route from a parking location where a vehicle is parked in a parking lot to a destination present in the building, using a network obtained by connecting the parking lot network to the in-building network,

wherein in the parking lot network, lines which are dividing parking lot spaces are included in a route that can be selected by the user moving after getting out of a vehicle, and

a parking lot network is created using information on lines that mark off the parking spaces in the parking lot,

wherein a walking node is set at each end point of the lines that mark off a parking space, and walking links are set between the walking nodes to construct the parking lot network.