Position measurement method, own position measurement device, and on-board unit
First Claim
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1. A vehicle position measurement method, comprising:
- a process of determining whether or not position information of an own vehicle is able to be acquired with predetermined quality from an outside;
a process of acquiring position information of a nearby vehicle present in an area in which the own vehicle is capable of acquiring information when the position information is determined not to be able to be acquired with the predetermined quality; and
a process of replacing the position information of the own vehicle with the acquired position information of the nearby vehicle,wherein a determination of the quality is performed according to whether or not there is a communication abnormality in acquisition of the position information from the outside when a quality prediction information, which is added to map information, for an estimated current position of the own vehicle is better than a predetermined reference.
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Abstract
A vehicle position measurement method includes a process of determining whether or not position information of an own vehicle is able to be acquired with predetermined quality from the outside, a process of acquiring position information of a nearby vehicle present in an area in which the own vehicle is capable of acquiring information when the position information is determined not to be able to be acquired with the predetermined quality, and a process of replacing the position information of the own vehicle with the acquired position information of the nearby vehicle.
23 Citations
11 Claims
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1. A vehicle position measurement method, comprising:
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a process of determining whether or not position information of an own vehicle is able to be acquired with predetermined quality from an outside; a process of acquiring position information of a nearby vehicle present in an area in which the own vehicle is capable of acquiring information when the position information is determined not to be able to be acquired with the predetermined quality; and a process of replacing the position information of the own vehicle with the acquired position information of the nearby vehicle, wherein a determination of the quality is performed according to whether or not there is a communication abnormality in acquisition of the position information from the outside when a quality prediction information, which is added to map information, for an estimated current position of the own vehicle is better than a predetermined reference. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An own position measurement device, comprising:
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a failure monitoring unit that determines whether or not position information of an own vehicle is able to be acquired with predetermined quality from an outside; a nearby vehicle position acquisition unit that acquires position information of a nearby vehicle present in an area in which the own vehicle is capable of acquiring information when the position information is determined not to be able to be acquired with the predetermined quality; and a position estimation processing unit that estimates the position information of the own vehicle from the acquired position information of the nearby vehicle, wherein the failure monitoring unit performs a determination of the quality according to whether or not there is a communication abnormality in acquisition of the position information from the outside when a quality prediction information, which is added to map information, for an estimated current position of the own vehicle is better than a predetermined reference. - View Dependent Claims (8, 9, 10, 11)
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Specification