Trimble Inc.

Trimble Navigation Limited

Hilti Aktiengesellschaft

Kent W Kahle

Andreas Winter

Young Jin Lee

Pat Bohle

Till Cramer

Oliver Glockner

Angela Beckenbauer

Markus Messmer

Reinhard Waibel

Marc Howell

Jordan Lawver

Steven Ostrowski

David Hyland

Eliot Jones

Ulrich Vollath

Paul Y Montgomery

Brian Christopher Kemp

Christian Graesser

Benedict J G Atkins

Scott Graybill

Keijun Kishi

Benedict Jg Atkins

Jinwei Jiang

Malte Seidler

Robert Painter

Francisco Roberto Green

Kurtis L Maynard

James Thomas Zalusky

Richard Piekutowski

Sascha Korl

Vincent Lasher

Ashish Dhital

Matthew Fonken

Bryan Williams

David Burczyk

Robert Marvin Beekman

Peter Ziegler

Murari Krishnan

Changlin Xiao

Michael Harvey Kidwell

Ben Atkins

A central map can be used in a construction environment to help position devices and receive updates from devices to update the central map. Devices in the construction environment, such augmented-reality devices, laser scanners, total stations, satellite navigation receivers, and others can be used to provide 'crowd-sourced' data to update the central map as the construction environment changes.

Optical map data aggregation and feedback in a construction environment

An augmented-reality device is aligned with an environment using a correction source. A position of a reflector (or other device that is part of a surveying system) coupled with a surveying rod is measured in relation to a correction. A position of a visual design, which is coupled with the surveying rod, is measured in relation to an augmented-reality device, based on an image of the visual design acquired by the augmented-reality device. A coordinate system of the augmented-reality device is aligned with the environment based on the position of the reflector in relation to the correction source, the position of the visual design in relation to the augmented-reality device, and an offset between the reflector and visual design.

Correcting position of a mobile device using a mobile reference

An augmented-reality device is used with a surveying system to guide a base station, such as a total station, during relock after loss of line of sight with a surveying instrument, such as a surveying pole with a reflective prism. A position of the surveying instrument in relation to the augmented-reality device is calculated while an object in the environment blocks line of sight from the base station to the surveying instrument. A position of the surveying instrument in relation to the environment is calculated based on the position of the surveying instrument in relation to the augmented-reality device. The position of the surveying instrument in relation to the environment is used by the base station to point toward to the surveying instrument.

Construction layout using augmented reality for guiding total station relock

A laser scanner is used with a mixed reality device to track and/or locate objects in an environment, such as a construction site. In some configurations, mixed reality is used to assist laser scanning. A collection of data points representing a point cloud can be acquired with a laser scanner. A reference frame of a mixed-reality device is aligned to the data of the point cloud. A graphic is presented on a display of the mixed-reality device. The graphic is positioned on the display in relation to the environment, based on the reference frame of the mixed-reality device being aligned to data of the point cloud. An item in the environment is tracked (e.g., a hazard or a tool). Data is provided to the mixed-reality device regarding a position of the item in the environment.

High density 3D environment capture with guided mixed reality

An augmented-reality system is combined with a surveying system to make measurement and/or layout at a construction site more efficient. A reflector can be mounted to a wearable device having an augmented-reality system. A total station can be used to track a reflector, and truth can be transferred to the wearable device while an obstruction is between the total station and the reflector. Further, a target can be used to orient a local map of a wearable device to an environment based on a distance between the target and the wearable device.

Construction layout using augmented reality

A system for integrating high-density laser scanner data with mixed-reality is disclosed. In some implementations, the system may acquire, using a laser scanner, a collection of data points representing a three-dimensional point cloud, wherein the laser scanner includes: a laser configured to generate an optical beam; a beam-steering device configured to steer the optical beam; and a detector configured to receive light from the optical beam, after light from the optical beam is reflected from an object in an environment. The system may transmit data of the point cloud to the augmented-reality device, wherein the augmented-reality device comprises: one or more cameras configured to acquire images of the environment; and a display configured to render graphics on the display. The system may align a reference frame of the augmented-reality device to the data of the point cloud. The system may present a graphic on the display of the augmented-reality device, wherein the graphic is positioned on the display in relation to the environment based on the reference frame of the augmented-reality device being aligned to data of the point cloud.

High-density 3D environment capture to guide mixed reality

Layout workflow with augmented reality and optical prism

A system and method for determining a position and orientation (e.g., pose) of a rigid body. The rigid body may be a position enabled projector, a surveying rod, a power tool, a drill robot, etc., in a given space. The position of the rigid body is specified by a set of three coordinates and the orientation is specified by a set of three angles. As such, based on these six values, the position and orientation of the rigid body can be determined.

System and method for measuring position and orientation of a rigid body

A Position and Orientation Measurement Engine (POME) is a mobile camera system that can be used for accurate indoor measurement (e.g., at a construction site). The POME uses a plurality of cameras to acquire images of a plurality of targets. If locations of the plurality of targets are precisely known, images of the targets can be used to determine a position of the POME in relation to the plurality of targets. However, to precisely determine locations of the plurality of targets can be time consuming and/or use expensive equipment. This disclosure discusses how to use a camera system with an electronic distance measuring unit to determine locations of the plurality of targets.

Target positioning with electronic distance measuring and bundle adjustment

A Position and Orientation Measurement Engine (POME) is a mobile camera system that can be used for accurate indoor measurement (e.g., at a construction site). The POME uses a plurality of cameras to acquire images of a plurality of targets. If locations of the plurality of targets are precisely known, images of the targets can be used to determine a position of the POME in relation to the plurality of targets. However, to precisely determine locations of the plurality of targets can be time consuming and/or use expensive equipment. This disclosure discusses how to use the POME itself to determine locations of the plurality of targets.

Target positioning with bundle adjustment

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.

Measurement, layout, marking, firestop stick

A method for reporting as-built data of a project is disclosed. In one embodiment, at least one attribute of a task perform by a handheld tool is recorded at the handheld tool. The attribute of the at least one task is reported via a wireless communication link to an information management system. The at least one attribute of the task is used to update a record of a project stored at the information management system.

Integration of as built data of a project

Calibration approach for camera placement

A camera is oriented at a workspace by comparing a three-dimensional model of the workspace to an image. A user provides an initial estimation of camera location. A feature of the three-dimensional model is projected onto the image. The feature of the three-dimensional model is compared to a corresponding feature in the image. A position and orientation of the camera are calculated by comparing the feature of the three-dimensional model the corresponding feature in the image.

Self positioning camera system to 3D CAD/BIM model

Growing community of inventors

Tipp City, OH, United States of America

Kent W Kahle