Measurement, layout, marking, firestop stick
AssigneeTrimble Inc.
InventorsKent Kahle, Young Jin Lee
Life of this patent
Estimating the term…
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.
Claims10
A system for providing position and orientation of an object at a worksite, the system comprising:
- a first camera unit;
- a second camera unit;
- a third camera unit;
- a stick, wherein the stick comprises:
- central markings of known dimensions;
- an end marking of known dimensions;
- the end marking has different dimensions than the central markings;
- and
- the central markings have a repeating pattern;
- and
- one or more processors configured to track a position and an orientation of the stick in three dimensions based on known dimensions of the end marking, the repeating pattern of the central markings, and known positions of the first camera unit, the second camera unit, and the third camera unit.
Dependencies are inferred from the claim text.