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US 11,536,568 B2Granted
Target instrument and surveying system
AssigneeTopcon Corporation
InventorNobuyuki Nishita
Life of this patent
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AssigneeTopcon Corporation
InventorNobuyuki Nishita
Estimating the term…
A surveying system comprises a laser scanner for scanning a distance measuring light and for acquiring point cloud data and a target instrument having a target for reflecting the distance measuring light, wherein the target is a sphere having a known diameter, the laser scanner comprises a distance measuring module for projecting the distance measuring light, for receiving a reflected distance measuring light and for performing a distance measurement, an optical axis deflector which enables to two-dimensionally deflect the distance measuring light, and an arithmetic control module for controlling the optical axis deflector, and wherein the arithmetic control module is configured to perform a circular scan on a surface of the target by the optical axis deflector, to obtain a center of the target based on the point cloud data acquired by the circular scan and the diameter, and to measure a distance of the center of the target.
A surveying system comprising a laser scanner for scanning a distance measuring light and for acquiring point cloud data and a target instrument having a target for reflecting said distance measuring light, wherein said target is a sphere having a known diameter, said laser scanner comprises a distance measuring module for projecting said distance measuring light, for receiving a reflected distance measuring light and for performing a distance measurement, an optical axis deflector which enables to two-dimensionally deflect said distance measuring light, and an arithmetic control module for controlling said optical axis deflector, and wherein said arithmetic control module is configured to perform a circular scan on a surface of said target by said optical axis deflector, to obtain a center of said target based on the point cloud data acquired by said circular scan and said diameter, and to measure a distance of the center of said target.
Dependencies are inferred from the claim text.