Variable-gauge train control apparatus and variable-gauge train propulsion control system
US-11975613-B2 · May 7, 2024 · US
Position detection system, vehicle, and position detection method
US12296873B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12296873-B2 |
| Application number | US-201917435537-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 5, 2019 |
| Priority date | Mar 22, 2019 |
| Publication date | May 13, 2025 |
| Grant date | May 13, 2025 |
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Abstract
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This position detection system is provided with: a distance measuring sensor that is attached to a vehicle traveling along a track and is capable of measuring a distance over a predetermined range in the track width direction; an edge position detecting unit that detects an edge position in the track width direction of the track on the basis of distance measurement data from the distance measuring sensor; and a distance calculation unit that calculates a distance in the track width direction between a reference position of the track that is specified from the edge position and a reference position of the vehicle to which the distance measuring sensor is attached.
First claim
Opening claim text (preview).
The invention claimed is: 1. A position detection system comprising: a distance measuring sensor mounted to a vehicle traveling along a track, and having an irradiation source, the distance measuring sensor configured to irradiate detection light in a plurality of directions from the irradiation source within a predetermined range in a track width direction of the track, and measure a distance over the predetermined range in the track width direction to obtain distance measurement data; and a processor configured to detect a position of an edge of a traveling path or a track floor in the track width direction of the track, based on the distance measurement data obtained by the distance measuring sensor, and calculate a distance in the track width direction between a reference position of the track, which is specified from the position of the edge, and a reference position of the vehicle to which the distance measuring sensor is mounted, wherein the edge is an intersection line at which two faces facing in different directions of surfaces of a structure configuring the track intersect each other, and the processor is configured to specify the reference position of the track, based on positions of two or more edges of the traveling path or the track floor, which are located at a same vertical height, and determine the distance in the track width direction between the reference position of the track and the reference position of the vehicle by an equation as follows: D = L / 2 - ( L × y 1 ) / ( y 1 + y 2 ) = L / 2 - ( L × H × tan ( n × Θ ) ) / ( H × tan ( n × Θ ) + H × tan ( m × Θ ) ) = L / 2 - ( L × tan ( n × Θ ) ) / ( tan ( n × Θ ) + tan ( m × Θ ) ) , wherein reference L is a width of the track in the track width direction, reference y1 is a first position of one of the two or more edges at one side along the track width direction with respect to the reference position of the vehicle, reference y2 is a second position of another of the two or more edges at another side opposite to the one side alon
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Details · CPC title
using analysis of echo signal for target characterisation; Target signature; Target cross-section · CPC title
Lidar systems specially adapted for specific applications · CPC title
Combinations of systems using electromagnetic waves other than radio waves · CPC title
relating to scanning · CPC title
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- What does patent US12296873B2 cover?
- This position detection system is provided with: a distance measuring sensor that is attached to a vehicle traveling along a track and is capable of measuring a distance over a predetermined range in the track width direction; an edge position detecting unit that detects an edge position in the track width direction of the track on the basis of distance measurement data from the distance measur…
- Who is the assignee on this patent?
- Mitsubishi Heavy Ind Ltd
- What technology area does this patent fall under?
- Primary CPC classification B61L25/025. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue May 13 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).