Central Japan Railway Company

Nippon Sharyo, Ltd.

Koichiro Nanba

Tomohiro Otsuka

Nobuyuki Okada

Yasuki Nakakura

Tatsuya Mita

Tomonori Goto

Takahiro Sasauchi

Naoki Tokuda

This sensor state determination system is a sensor state monitoring system capable of accurately determining whether or not a detecting sensor used with a railroad vehicle is in an abnormal state. This system includes: a detecting sensor capable of detecting a physical value acting upon the railroad vehicle; and an electronic control device. A monitoring sensor equivalent to the detection sensor is installed at a position equivalent to the position of the detection sensor. The electronic control device is provided with a determination means (coherence calculation section, state determination section) that computes, based on a first signal detected by the detecting sensor and a second signal detected by the monitoring sensor, a coherence value indicating a correlation between the signals. The electronic control device determines that the detecting sensor is in an abnormal state if the coherence value is smaller than a preset abnormality determination value.

Sensor state determination system

Growing community of inventors

Nagoya, Japan

Koichiro Nanba