無線を用いた列車制御システムにおける速度発電機と慣性センサを併用した距離算出法

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  • A Distance Calculation Method by Combining Inertial Sensors and Tachometer Generators for Communications-based Train Control Systems
  • ムセン オ モチイタ レッシャ セイギョ システム ニ オケル ソクド ハツデンキ ト カンセイ センサ オ ヘイヨウ シタ キョリ サンシュツホウ

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<p>In general tachometer generators are used to calculate the train running distance in the case of on-board systems. However, this calculation requires the compensation of errors caused by wheel skids and slips. Therefore, we propose a method that combines tachometer generators and inertial sensors to calculate train running distances for communications-based train control systems. As COTS inertial sensors are necessary to reduce initial costs, it is impossible to rely on only inertial sensors. Hence, in order to use lower-precision sensors, it is necessary to minimize the compensation duration. In the proposed method, compensation with inertial sensors is applied only in the case of wheel skids and slips. To realize this requirement, not only a compensation process but also a detection process of the changing condition between the tachometer generators and the inertial sensors is introduced in the proposed method. Simulation analysis results obtained using managed time-stamped data show that it is possible to apply this method to lines having gradients and curves.</p>

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