Mitsubishi Electric Corporation

Emiko Kurata

Akira Nakanishi

Hajime Nakajima

Hiroshi Nishizawa

Keita Mochizuki

Yoshitsugu Sawa

Masahiro Ishikawa

Masahiro Shikai

Akihide Shiratsuki

Toru Oka

Jin Inoue

Koki Yoshimoto

Toshiro Nakashima

Naoki Ueda

Yoshimasa Watanabe

Yukitoshi Inaba

Masashi Tomida

A forward monitoring device for a train includes: a storage unit storing map information representing location information and a track geometry of a track and brake performance information representing performance of a train brake system; a train information acquisition unit obtaining train location information and train speed information; a monitoring unit monitoring an upside of the track in the travel direction; an obstacle determination unit determining presence or absence of an obstacle on the track based on a monitoring result of the monitoring unit; a braking distance calculation unit calculating a train braking distance using the map, brake performance, train location, and train speed information, and a processing time from when the monitoring unit performs monitoring until determination on presence or absence of an obstacle; and a monitoring distance determination unit determining a monitoring distance based on the braking distance to set a monitoring range of the monitoring unit.

Forward monitoring device and forward monitoring method

An obstacle detection device installed in a train includes: a sensor that monitors surroundings of the train and generates a range image that is a result of monitoring; a storage unit that stores map information including position information of structures installed along a railroad track on which the train travels; a correction unit that corrects, using the range image acquired from the sensor and the map information stored in the storage unit, first train position information that is information acquired from a train control device and indicates a position of the train, and outputs second train position information that is a result of correction; and a monitoring condition determination unit that determines a monitoring range of the sensor using the second train position information and the map information.

Obstacle detection device and obstacle detection method

In an elevator car position detection device, a magnetic field generator generates an eddy current magnetic field on an identification member, and a magnetic field detector detects the eddy current magnetic field generated on the identification member. The identification member includes a plurality of conductors which are continuously arranged along an ascending and descending direction of a car, and are relatively different in a plate thickness with respect to a skin depth of an eddy current generated by the magnetic field generator on the identification member. A shape of at least a part of a boundary between the adjacent conductors is a straight line or a curve tilted with respect to a direction orthogonal to the ascending and descending direction of the car.

Elevator car position detection device

Growing community of inventors

Chiyoda-ku, Japan

Emiko Kurata