The grade crossing obstacle detection device and the grade crossing obstacle detection

摘要

PROBLEM TO BE SOLVED: To high-precisely discriminate an obstacle in the vicinity of a crossing rod when a gate arm is closed.;SOLUTION: When a radar processing means discriminates an obstacle 17b in the vicinity of a crossing rod 16 from output information of a radar transmitting and receiving means 18, it outputs a start signal for starting a radar transmitting and receiving means 20 for the vicinity of the crossing rod. The radar transmitting and receiving means 20 for the vicinity of the crossing rod transmits a radar beam to the vicinity of the crossing rod 16 in parallel with the crossing rod 16 in response to the start signal, and it receives a reflected wave of the transmitted radar beam. An incoming object discriminating means discriminates the obstacle 17b within the railroad crossing 15 in the vicinity of the crossing rod 16 from information of the reflected wave and high-precisely discriminates the obstacle 17b in the vicinity of the crossing rod 16. An alarm signal is output from an alarm processing means for receiving an output signal of the incoming object discriminating means.;COPYRIGHT: (C)2004,JPO