Koito Electric Industries, Ltd.

Akitaka Samejima

Takayuki Izumi

Kazuo Maruyama

Hiroyuki Niiyama

Kenichiro Komatsu

Jun Matsunaga

Kazuki Furusawa

A power supply system () according to an embodiment of the present invention includes a first power supply device (), a second power supply device (), and an addition circuit (). The first power supply device () includes a first driving circuit that outputs a first direct current from a first power supply input and a first control circuit that controls the first driving circuit. The second power supply device () includes a second driving circuit that outputs a second direct current from a second power supply input and a second control circuit that monitors the first driving circuit and controls the second driving circuit. The addition circuit () is connected to an output terminal of each of the first and second power supply devices () and outputs a third direct current that is a value obtained by adding the first and second direct currents to a load device (on-board illumination device ()).

Power supply system and railroad car

There are provided a method and a device for providing communication data that provide communication data for identifying a device on a mobile object that communicates through an LAN in accordance with a predetermined communication protocol to the device on a mobile object installed on a mobile object without a communication data provision problem caused due to a manual operation, a data gathering method and a system for a mobile object using the method and the device, the device on a mobile object for the system, a network system for organizing vehicles, and an on-vehicle device for the system.

Method and a device for providing communication data, data gathering system for a mobile object, a device on the mobile object for the data gathering system, a network system for organizing vehicles, and a on-vehicle device for the system

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Shizuoka, Japan

Akitaka Samejima