POSITION ATTITUDE MEASURING DEVICE USING IMAGE PROCESSING AND LASER BEAM

PROBLEM TO BE SOLVED: To solve a problem of a method of using an image processing technology for measuring a position attitude of a movable body wherein the zoom of a camera must be changed when movable body moves near and far, the camera optical axis changes, separation from the actual coordinate system arises, and accurate measurement cannot be performed when the zoom is changed, an instrument frequently cannot be placed in the midway, and there are visual read instrumentations using a laser beam, a scale plate, and a monitor TV to frequently cause an error when the position attitude of an excavating machine in narrow tunnel construction or the like is measured, a gyrocompass used in a curved tunnel is expensive but has low accuracy, can measure only azimuthal angle, and cannot measure the position, and a present instrumentation system using image processing is expensive. SOLUTION: Utilizing an inexpensive and accurate monitor integrated type CCD camera, a free suspension marker or the like, and a laser beam used as a base line, high-speed and highly accurate instrumentation is performed with an image processing device and mathematical processing. COPYRIGHT: (C)2007,JPO&INPIT