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Vehicle location determination device, vehicle location determination system, and vehicle location determination method

A technology for determining devices and vehicles, applied in the direction of control devices, vehicle components, transportation and packaging, etc., can solve problems such as the inability to determine the vehicle position with high precision

Pending Publication Date: 2021-11-26
DENSO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, it is not possible to determine the position of the vehicle with high precision in locations where there are few or no objects that serve as markers such as signboards and monuments.

Method used

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  • Vehicle location determination device, vehicle location determination system, and vehicle location determination method
  • Vehicle location determination device, vehicle location determination system, and vehicle location determination method
  • Vehicle location determination device, vehicle location determination system, and vehicle location determination method

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no. 1 approach

[0013] Such as figure 1 As shown, a vehicle 10 is provided with a vehicle position determination system 100 . In the present embodiment, the vehicle position specifying system 100 specifies the absolute position of the vehicle 10 represented as coordinates on a map, that is, the vehicle position. In the present embodiment, the vehicle position specifying system 100 includes a vehicle position specifying device 110 , a displacement sensor 122 , a camera 124 , a vehicle position sensor 126 , and a road characteristic information storage unit 130 .

[0014] In this embodiment, the road feature information storage unit 130 stores road feature information, landmarks, and position information corresponding to the landmarks. The so-called "road characteristic information" is information indicating the absolute position of a predetermined point. The road characteristic information is, for example, information including road information of a predetermined point and coordinate informa...

Embodiment approach

[0042] (1) In the above-described embodiment, the control unit 114 determines the imaging range of the peripheral image representing the road information based on the accuracy of the reference vehicle position as the road information ( Figure 4 , steps S120, 125). Instead of this configuration, the vehicle position specifying device 110 may also specify information used as road information in accordance with the accuracy of the reference vehicle position. For example, the vehicle position identification device 110 may be set to use road shape information as road information when the accuracy of the reference vehicle position is lower than the discrimination accuracy, and on the other hand, when the accuracy of the reference vehicle position is greater than the discrimination accuracy , set to use road pattern information as road information. More specifically, the vehicle position determining system 100 is set so that the displacement sensor 122 captures the traveling direct...

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Abstract

A vehicle location determination device 110 that is to be mounted on a vehicle 10 and comprises: an acquisition unit 112 that acquires a peripheral image represented by minute displacements relative to the vehicle, the peripheral image being road information for identifying the location of the vehicle; and a control unit 114 that compares the road information and road characteristic information indicating the absolute location of a predetermined point, and determines the vehicle location according to the comparison result.

Description

[0001] CROSS REFERENCE TO RELATED APPLICATIONS: This application claims priority from Japanese Patent Application No. 2019-71690 filed on April 4, 2019, and all disclosures thereof are incorporated herein by reference. technical field [0002] The present disclosure relates to a vehicle position determination device, a vehicle position determination system, and a vehicle position determination method. Background technique [0003] As a technique for specifying a vehicle position, for example, a technique for specifying a vehicle position by comparing an image captured by a camera with a pre-prepared sparse map is known, as described in JP-A-2018-510373. [0004] However, the position of the vehicle cannot be specified with high accuracy at positions where there are few or no objects to be marked such as signboards and monuments. Therefore, a technique capable of specifying the position of the vehicle with high accuracy regardless of the position is desired. Contents of the...

Claims

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Application Information

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IPC IPC(8): G01C21/28
CPCG01C21/28G06V20/588B60W40/06B60W2552/53B60W2552/35G06V20/582G06V10/60
Inventor 横山隆久井户准行
Owner DENSO CORP
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