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Title:
TERRAIN CONTOUR LINE MAP DATA MEASURING DEVICE
Document Type and Number:
Japanese Patent JPH05141966
Kind Code:
A
Abstract:
PURPOSE:To measure and display the contour line data of the ground in one touch via the contact between the measurement face and the ground to be surveyed by fitting gravity sensors and geomagnetism magnetic flux sensors to three axes of a measuring instrument respectively for measurement and calculation. CONSTITUTION:Gravity detecting sensors Ix, Iy, Iz and magnetic flux detecting sensors Mx, My, Mz are fitted to three perpendicular shafts X, Y, Z of a measuring instrument main body respectively while their center lines are made coincident with the axes of three shafts X, Y, Z. These sensors output the gravity component forces and magnetic flux component forces corresponding to the cosine values of the angles between the direction of the gravitational force and the geomagnetism magnetic flux and three shafts X, Y, Z of a travel body respectively. A calculation section calculates the map data of the maximum inclination, gradient, stepped difference, contour line bearing, and contour line of contour line normal line bearing based on these component forces, and a display section displays these data. The surface of the measuring instrument is used as a display face, the bottom face is used as the measurement face in a integrated structure, the bottom face is brought into contact with the ground to be measured, and the required data of the subject ground can be measured in one touch.

Inventors:
YAMAGUCHI TAKAO
NISHIZAWA HAJIME
KUMAKURA TOSHIKI
Application Number:
JP30494191A
Publication Date:
June 08, 1993
Filing Date:
November 20, 1991
Export Citation:
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Assignee:
YAMAGUCHI TAKAO
International Classes:
G01C5/00; G01C9/06; G01C17/38; G01V7/06; G09B29/00; (IPC1-7): G01C5/00; G01C9/06; G01V7/06; G09B29/00
Attorney, Agent or Firm:
Hidekuma Matsukuma



 
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