US 11,987,275 B2
Train control system and obstacle detection device
Makoto Tokumaru, Tokyo (JP)
Assigned to MITSUBISHI ELECTRIC CORPORATION, Tokyo (JP)
Appl. No. 16/960,491
Filed by Mitsubishi Electric Corporation, Tokyo (JP)
PCT Filed Jan. 12, 2018, PCT No. PCT/JP2018/000581
§ 371(c)(1), (2) Date Jul. 7, 2020,
PCT Pub. No. WO2019/138532, PCT Pub. Date Jul. 18, 2019.
Prior Publication US 2020/0377133 A1, Dec. 3, 2020
Int. Cl. B61L 27/00 (2022.01); B61L 23/04 (2006.01); B61L 25/02 (2006.01); B61L 23/34 (2006.01); B61L 27/20 (2022.01)
CPC B61L 23/041 (2013.01) [B61L 25/021 (2013.01); B61L 23/34 (2013.01); B61L 2027/204 (2022.01)] 16 Claims
OG exemplary drawing
 
1. A train control system comprising:
an image information converter mounted on a train to output first image information that is obtained by adding train information to image information imaged by an imaging device mounted on the train and capable of capturing an area in front of the train, the imaging device configured to be adjustable such that the image information capturing the area in front of the train includes a position at which the train can be stopped from a maximum speed; and
an obstacle detection device installed on the ground and wirelessly connected to the image information converter over a train control system network, the obstacle detection device including:
image information storage circuitry to wirelessly receive and record the first image information output from the image information converter;
movement authority circuitry to calculate a limit of movement at which the train is to be stopped based on at least the position at which the train can be stopped from a maximum speed in the first image information;
image information comparison circuitry to compare the first image information with second image information recorded in the image information storage circuitry;
image information result output circuitry to wirelessly output a result from the image information comparison circuitry to the train control system network,
wherein the image information comparison circuitry determines a degree of match between the first image information and the second image information and, when the degree of match is greater than or equal to a second threshold and less than a first threshold, performs obstacle detection by comparing the first image information with third image information recorded in the image information storage circuitry; and
the image information result output circuitry to wirelessly output a limit of movement result from the movement authority circuitry to the train control system network.