Topography measuring device
First Claim
1. A topography measuring device, comprising:
- visual camera means mounted on a vehicle for measuring a distance to subject topographical features to be measured;
absolute position detecting means mounted on the vehicle for detecting a three-dimensional absolute position of the vehicle;
topographical coordinate measuring means for determining three-dimensional position data on the subject topographical features of a vehicle coordinate system based on image pickup data of the visual camera means;
coordinate conversion means for converting the three-dimensional position data of the vehicle coordinate system of the subject topographical features determined by the topographical coordinate measuring means using detected data of the absolute position detecting means into three-dimensional position data of an absolute coordinate system;
image pickup position instructing means for instructing the vehicle on a plurality of different vehicle positions for taking images of the subject topographical features by the image pickup means; and
topographical data producing means for producing topographical data on the subject topographical features by synthesizing the conversion data of the coordinate conversion means based on the image pickup data of the visual camera means at the plurality of different vehicle positions instructed by the image pickup position instructing means.
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Abstract
A topography measuring device which comprises a visual camera mounted on a vehicle for measuring a distance to subject topographical features to be measured; an absolute position detecting unit mounted on the vehicle for detecting a three-dimensional absolute position of the vehicle; a topographical coordinate measuring unit for determining three-dimensional position data on the subject topographical features of a vehicle coordinate system based on the image pickup data by the visual camera; a coordinate conversion unit for converting the three-dimensional position data on the subject topographical features of the vehicle coordinate system determined by the topographical coordinate measuring unit using detected data of the absolute position detecting unit into three-dimensional position data of an absolute coordinate system; an image pickup position instructing unit for instructing the vehicle on a plurality of different vehicle positions for taking the images of the subject topographical features by the image pickup unit; and a topographical data producing unit for producing topographical data on the subject topographical features by synthesizing the conversion data of the coordinate conversion unit based on the image pickup data of the visual camera at the plurality of different vehicle positions instructed by the image pickup position instructing unit, whereby topographical features of a mine, ground, working face and the like where the vehicle cannot move can be measured efficiently.
81 Citations
4 Claims
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1. A topography measuring device, comprising:
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visual camera means mounted on a vehicle for measuring a distance to subject topographical features to be measured;
absolute position detecting means mounted on the vehicle for detecting a three-dimensional absolute position of the vehicle;
topographical coordinate measuring means for determining three-dimensional position data on the subject topographical features of a vehicle coordinate system based on image pickup data of the visual camera means;
coordinate conversion means for converting the three-dimensional position data of the vehicle coordinate system of the subject topographical features determined by the topographical coordinate measuring means using detected data of the absolute position detecting means into three-dimensional position data of an absolute coordinate system;
image pickup position instructing means for instructing the vehicle on a plurality of different vehicle positions for taking images of the subject topographical features by the image pickup means; and
topographical data producing means for producing topographical data on the subject topographical features by synthesizing the conversion data of the coordinate conversion means based on the image pickup data of the visual camera means at the plurality of different vehicle positions instructed by the image pickup position instructing means. - View Dependent Claims (2, 3, 4)
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Specification