TRAIN SPEED POSITION CALCULATION DEVICE, TRAIN OPERATION SUPPORT DEVICE, TRAIN OPERATION CONTROL DEVICE, AND TRAIN SPEED POSITION CALCULATION METHOD

To calculate the speed and position of a train accurately even when idling or slipping occurs.SOLUTION: A train speed position calculation device includes: a gradient information holding unit for holding gradient information of a track; an acceleration detection unit for detecting acceleration of a train in an advancing direction; an acceleration calibration unit, which obtains the gradient of an installation position of the acceleration detection unit by referring to the gradient information holding unit when the train stops, compares the acceleration in response to the obtained gradient with the detected value of the acceleration detection unit, calibrates a zero point of the acceleration detection unit, and calculates calibration acceleration; an actual acceleration estimation unit which obtains the gradient of the installation position of the acceleration detection unit by referring to the gradient information holding unit when the trains is traveling and estimates the actual acceleration of the train based on the acceleration in response to the gradient and the calculated calibrated acceleration, a position calculation unit which calculates the speed by time-integrating the estimated actual acceleration and calculates a traveling distance and a position of the train by time-integrating the speed; an acceleration error correction unit which calculates a plurality of traveling distances by using a plurality of acceleration offsets and selects an acceleration offset with the smallest distance error to correct the acceleration.SELECTED DRAWING: Figure 1 【課題】空転や滑走の発生時でも列車速度、位置を精度よく算出する。【解決手段】実施形態の列車速度位置算出装置は、路線の勾配情報を保持する勾配情報保持部と、列車の進行方向加速度を検出する加速度検出部と、列車停車時に加速度検出部の設置位置の勾配を勾配情報保持部を参照して求め、求めた勾配に応じた加速度と加速度検出部の検出値を比較し加速度検出部のゼロ点を校正し校正加速度を算出する加速度校正部と、列車走行時に加速度検出部の設置位置の勾配を勾配情報保持部を参照して求め、当該勾配に応じた加速度と算出した校正加速度に基づいて列車の実加速度を推定する実加速度推定部と、推定した実加速度を時間積分して速度を算出し速度を時間積分して列車の走行距離と位置を算出する位置算出部と、複数の加速度オフセットを用いて複数の走行距離を算出し、距離誤差が最も小さい加速度オフセットを選択して加速度を補正する加速度誤差補正部と、を備える。【選択図】図１