The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 21, 2009
Filed:
Sep. 17, 2007
Ritsuo Sakimura, Columbus, OH (US);
Hajime Sinozaki, Itabashi-ku, JP;
Ritsuo Sakimura, Columbus, OH (US);
Hajime Sinozaki, Itabashi-ku, JP;
Kabushiki Kaisha TOPCON, Tokyo-to, JP;
Abstract
The present invention provides a measuring system, which comprises a surveying device installed at a known point, at least one photodetection device to be installed at a measuring point, and a main arithmetic device; wherein the surveying device projects by rotary irradiation a reference plane forming laser beam including two or more fan-shaped laser beams with at least one of the fan-shaped laser beams tilted and a distance measuring light performs distance measurement by receiving a reflected distance measuring light, and performs communication of the distance measurement data between the photodetection device and the main arithmetic device; wherein the photodetection device calculates an elevation angle with respect to the surveying device based on a photodetection signal issued by receiving the reference plane forming laser beam, calculates an elevation position based on the elevation angle and the distance to the surveying device, and performs communication of distance measurement data and elevation position data at least with the main arithmetic device; and wherein the main arithmetic device communicates at least with the photodetection device among the surveying device and the photodetection device, and collects and records surveying data such as distance measurement data, elevation position data, etc. for each measuring point.