Title:
路線沿線の電波障害検出システム及び電波障害検出方法
Document Type and Number:
Japanese Patent JP6856979
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To achieve a radio wave interference detection system capable of detecting a radio wave interference along a route with high positional accuracy, and outputting a cause for occurrence of the radio wave interference.SOLUTION: An on-vehicle device (20) mounted on a vehicle which travels on a route where a radio base station which transmits a radio signal is arranged for detecting a radio wave interference along a route comprises: a radio wave measurement device for measuring intensity of a peripheral radio wave; a positioning device for acquiring the position of the vehicle; a storage device; and a control device. The control device controls the radio wave measurement device to execute the measurement of radio wave intensity within a predetermined frequency range at a predetermined spot, and stores the measurement result in association with position information, and determines whether or not the measured radio wave intensity is within a predetermined allowable range set in advance, and stores the determination result in association with the position information, and statistically processes the measurement result of the radio wave measurement device to generate a threshold for determining the allowable range of a level of a received radio wave, and stores the threshold in association with the position information.SELECTED DRAWING: Figure 4
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Inventors:
Yukiya Tateishi
Yoshi Nakai
Hattori Tetsunori
Naofumi Kimura
Yoshi Nakai
Hattori Tetsunori
Naofumi Kimura
Application Number:
JP2016078122A
Publication Date:
April 14, 2021
Filing Date:
April 08, 2016
Export Citation:
Assignee:
East Japan Railway Company
International Classes:
H04W16/18; H04B17/318; H04W4/40; H04W64/00
Domestic Patent References:
| JP2008252697A | ||||
| JP2012178779A | ||||
| JP2012244266A |
Foreign References:
| WO2015177992A1 | ||||
| WO2014125931A1 |
Attorney, Agent or Firm:
Gwangyang International Patent Office