Central Japan Railway Company

Mitsubishi Electric Corporation

Mitsubishi Heavy Industries Limited

Toshiba Infrastructure Systems & Solutions Corporation

Noriyuki Taniyama

Tomoki Watanabe

Kenji Sato

Hiroaki Otani

Kazuhiro Yoshizawa

Shigekazu Okada

Kei Sakanoue

Masayuki Ueno

Takafumi Fukushima

Yasuomi Maki

Tsunehito Fujita

Manato Mori

Kotaro Nakamura

Hidemitsu Tanaka

Gakuji Kobayashi

Kotaro Oda

Kenichi Kikkawa

Takahisa Inui

Yoshiya Watanabe

Isao Naruse

Shinichiro Tanaka

Inui Takahisa

A current collector monitoring system in one aspect of the present disclosure is provided with: a collected current measurement unit; a collected current state determination unit; an image acquisition unit; an event recognition unit; an event determination unit; and a determination result output unit. When a state of collected current corresponds to an abnormal state, the image acquisition unit acquires an image including, within an angle of view, a collector shoe provided to a current collector.

Current collector monitoring system

A power conversion system includes a transformer, a power conversion device for travel, a power conversion device for auxiliary power sources, an electrical storage device, and an auxiliary device. The power conversion device for travel converts AC power into power for travel and supplies it to a travel motor. The power conversion device for auxiliary power sources includes an AC to DC conversion unit which converts AC power into DC power, a power conversion unit for AC loads which converts the DC power into AC power and supplies it to an AC load, and a power conversion unit for DC loads which converts DC power to DC power and supplies it to a DC load. The electrical storage device is connected to power lines connecting DC power output terminals of the AC to DC conversion unit and DC power input terminals of both the power conversion units for AC and DC loads. The auxiliary device is connected to power lines connecting the power conversion device for auxiliary power sources and the electrical storage device and operates with power supplied from the electrical storage device.

Power conversion system

A compressed air supply apparatus includes a control unit configured to operate an air compressor when a measurement value of a pressure measurement unit reaches a first pressure or less, and configured to stop the air compressor when the measurement value reaches a second pressure higher than the first pressure, and a plurality of relief valve apparatuses installed in each of the connection flow path between the air compressor and each of a plurality of air tanks, wherein each of the plurality of relief valve apparatuses is configured to open the connection flow path to the atmosphere when the measurement value reaches a third pressure higher than the second pressure and close the connection flow path when the measurement value reaches a fourth pressure higher than the second pressure and lower than the third pressure after the opening.

Compressed air supply apparatus

Growing community of inventors

Nagoya, Japan

Noriyuki Taniyama