PROBLEM TO BE SOLVED: To provide a sensor sate determination device and sensor state determination program that can appropriately determine whether a detection sensor such as an acceleration sensor and the like to be used in railway vehicles is in an irregularity state during travelling of the railway vehicles.SOLUTION: A sensor state determination device 1 is configured to: define a value indicative of a correlation relationship about amplitude between either signal on the basis of a first signal X to be input from a detection sensor 105 and a second signal Y to be input from a monitor sensor 106 as a coherence value CXY; define the value indicative of the correlation relationship about the amplitude between either signal as a ratio of a difference value between the maximum amplitude value in the first signal X and the minimum amplitude value therein and a difference value between the maximum amplitude value in the second signal Y and the minimum amplitude value therein between; and define a value having the coherence value CXY multiplied by an amplitude ratio of either signal as a determination parameter; and determine whether the detection sensor 105 is in an irregularity state from the determination parameter.SELECTED DRAWING: Figure 1
【課題】鉄道車両に用いられる加速度センサ等の検出用センサが鉄道車両の走行中に異常状態になっているか否かを正確に判断できるセンサ状態判断装置およびセンサ状態判断プログラムを提供すること。【解決手段】センサ状態判断装置1は、検出用センサ105から入力される第1信号Xと監視用センサ106から入力される第2信号Yとに基づいて、両信号の位相に関する相関関係を示す値をコヒーレンス値CXYとし、両信号の振幅に関する相関関係を示す値を、第1信号Xにおける最大振幅値と最少振幅値との差分値と、第2信号Yにおける最大振幅値と最少振幅値との差分値との比率とし、かかる両信号の振幅比率をコヒーレンス値CXYに乗算した値を判断パラメータとし、その判断パラメータから検出用センサ105が異常状態になっているか否かを判断する。【選択図】 図1
SENSOR STATE DETERMINATION DEVICE AND SENSOR STATE DETERMINATION PROGRAM
センサ状態判断装置およびセンサ状態判断プログラム
2016-04-07
Patent
Electronic Resource
Japanese
IPC: | G01D MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE , Anzeigen oder Aufzeichnen in Verbindung mit Messen allgemein / B61F Untergestelle für Schienenfahrzeuge, z.B. Fahrgestellrahmen, Drehgestelle oder Anordnungen der Radsätze , RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES / G01P MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION OR SHOCK , Messen der Linear- oder Winkelgeschwindigkeit, der Beschleunigung, der Verzögerung oder des Stoßes |
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