Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Young Jin Lee0
Kent Kahle0
Date of Patent
July 2, 2019
0Patent Application Number
156041690
Date Filed
May 24, 2017
0Patent Citations Received
Patent Primary Examiner
Patent abstract
Multiple cameras are used for tool positioning, as-built documentation, and/or personnel monitoring in construction site. A camera unit comprises one or more imaging devices, a processing computer, and a communication device. The camera units are placed at multiple locations in a construction site to cover an area. The camera units are self-positioned by detecting a calibration target that moves within a working volume. The camera units can detect and calculate positions of objects, including measurement sticks, tools, personnel, etc., in the area.
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