To provide a new technique to improve the performance to discriminate between a wayside coil and noise in an on-train device that detects the wayside coil.SOLUTION: An on-train device 10 comprises: an FFT unit 202 that analyzes the amplitude frequency characteristics of a signal received by a receiving circuit 24; a statistical processing unit 208 that, based on the amplitude frequency characteristics, performs calculation of a first index value indicating reception of the same frequency noise from the ratio between the average value of the amplitudes of frequency components and a Q value, and performs calculation of a second index value indicating reception of random frequency noise from the standard deviation of the amplitudes of the frequency components; and a wayside coil detection unit 210 that determines detection of a wayside coil 30 based on the fact that the first index value is a negative value and the second index value is a negative value.SELECTED DRAWING: Figure 1
【課題】地上子を検出する車上装置において、地上子とノイズとの判別性を高める新たな技術を提供すること。【解決手段】車上装置10は、受信回路24の受信信号の振幅周波数特性を解析するFFT部202と、振幅周波数特性に基づき、各周波数成分の振幅の平均値とQ値との比率から同一周波数ノイズを受信したことを示す第1指標値の算出、及び、各周波数成分の振幅の標準偏差からランダム周波数ノイズを受信したことを示す第2指標値の算出を行う統計処理部208と、第1指標値が否定値であり、且つ、第2指標値が否定値であることに基づいて、地上子30の検出を判定する地上子検出部210とを備える。【選択図】図1
ON-TRAIN DEVICE
車上装置
2022-05-12
Patent
Elektronische Ressource
Japanisch
TRAIN CONTROL DEVICE, TRAIN CONTROL SYSTEM, AND TRAIN CONTROL METHOD
Europäisches Patentamt | 2024
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