Title:
MOVING BODY DETECTION SYSTEM AND METHOD FOR CONTROLLING SAME
Document Type and Number:
WIPO Patent Application WO/2019/012746
Kind Code:
A1
Abstract:
In the present invention, each radar in a first and second radar groups comprises a transmission antenna for emitting transmission waves toward a travel path and a reception antenna that has the same polarization direction as that of the transmission antenna and is for receiving reflected waves resulting from the reflection of the transmission waves by a moving body traveling on the travel path. The radars in the first radar group have different polarization directions from each other, and the radars in the second radar group have different polarization directions from each other. The radars in the first radar group and the radars in the second radar group are made to operate alternatingly such that a time period when the radars in the first radar group are emitting transmission waves toward the travel path does not overlap with a time period when the radars in the second radar group are emitting transmission waves toward the travel path.
Inventors:
TAKAHASHI MASAYOSHI (JP)
OHKUBO KENTAROU (JP)
AKIYAMA HITOSHI (JP)
OHKUBO KENTAROU (JP)
AKIYAMA HITOSHI (JP)
Application Number:
PCT/JP2018/012234
Publication Date:
January 17, 2019
Filing Date:
March 26, 2018
Export Citation:
Assignee:
HITACHI LTD (JP)
International Classes:
G01S13/87; G01S7/40; G01S13/91; G08G1/00
Foreign References:
| JPS507299A | 1975-01-24 | |||
| JPH0669054U | 1994-09-27 | |||
| JP2016065721A | 2016-04-28 | |||
| JPS4854603A | 1973-08-01 |
Attorney, Agent or Firm:
SUNNEXT INTERNATIONAL PATENT OFFICE (JP)
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