RAILROAD CROSSING OBSTACLE DETECTING DEVICE

• Main Authors: ASHINO TOMOYA, KASAI TAKAYUKI
• Format: Patent
• Language: English
• Published: 30.04.2010
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; ANTENNAS, i.e. RADIO AERIALS; BASIC ELECTRIC ELEMENTS; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; ELECTRICITY; ENSURING THE SAFETY OF RAILWAY TRAFFIC; GUIDING RAILWAY TRAFFIC; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; PERFORMING OPERATIONS; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; RAILWAYS; SIGNALLING; TESTING; TRAFFIC CONTROL SYSTEMS; TRANSPORTING

PROBLEM TO BE SOLVED: To provide a railroad crossing obstacle detecting device for improving reliability in detecting an obstacle. SOLUTION: This railroad crossing obstacle detecting device includes shielding members 9a and 9b for shielding a side lobe included in a radio wave. The shielding members 9a and 9b are respectively a metallic plate, and are arranged so as to project in the transmission direction of the radio wave W1 by adjusting its plate surface to the side surface of a transmission antenna ANT1 and a receiving antenna ANT2. Thus, since the side lobe is not transmitted to an area except for a detection area, the railroad crossing obstacle detecting device does not incorrectly detect an object existing in the area except for the detection area such as a crossing pole and an automobile waiting for crossing as the obstacle. COPYRIGHT: (C)2010,JPO&INPIT