DEVICE FOR DETECTING OBSTACLE IN UNDERGROUND PROPULSION METHOD

• Main Authors: NISHIURA KATSUTOSHI, NAKAUCHI HIROMASA
• Format: Patent
• Language: English
• Published: 28.04.2000
• Edition: 7
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; DETECTING MASSES OR OBJECTS; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; EARTH DRILLING; FIXED CONSTRUCTIONS; GALLERIES; GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; LARGE UNDERGROUND CHAMBERS; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; MINING; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; SHAFTS; TESTING; TUNNELS

PROBLEM TO BE SOLVED: To provide a device for detecting an obstacle in an underground propulsion method that can reduce time for detecting a buried obstacle. SOLUTION: A device for detecting an obstacle in an underground propulsion method is provided with a transmission antenna 22 that transmits an electromagnetic wave toward an object 16 being hidden under the ground, a reception antenna 24 that receives the electromagnetic wave being reflected from the object 16 being hidden under the ground, a sampler 38 that samples an output signal from the reception antenna 24, an image signal-processing means 28 that processes an image information signal being sampled by the sampler 38 for obtaining the position information signal of the object being hidden, and a display means 60 that displays the contents of the position information signal from the image signal-processing means 28. The transmission antenna 22, the reception antenna 24, the sampler 38, and the image signal-processing means 28 are provided in a propulsion body 4 for propelling in soil, and the display means 60 is provided at the side of an operator.