Method and apparatus for using gestures to control a laser tracker

Patent metadata

Field	Value
Publication number	US-2016010973-A1
Application number	US-201514803575-A
Country	US
Kind code	A1
Filing date	Jul 20, 2015
Priority date	May 1, 2013
Publication date	Jan 14, 2016
Grant date	—

Abstract

A method and system are provided for controlling a laser tracker remotely from the laser tracker through gestures performed by a user. The method includes providing a rule of correspondence between each of a plurality of commands and each of a plurality of user gestures. A gesture is performed by the user with the user's body that corresponds to one of the plurality of user gestures. The gesture performed by the user is detected. The gesture recognition engine determines a first command from one of the plurality of commands that correspond with the detected gesture. Then the first command is executed with the laser tracker.

First claim

What is claimed is:

1 . A method for a user to control operation of a laser tracker with steps comprising:
providing the laser tracker having a structure rotatable about a first axis and a second axis, a first light source that launches a first light beam from the structure, a distance meter, a first angular encoder that measures a first angle of rotation about the first axis, a second angular encoder that measures a second angle of rotation about the second axis, and a processor; providing a wearable device having a plurality of sensor nodes, wherein each sensor node further includes one or more Electromyography sensors; providing a rule of correspondence between each of a plurality of commands and each of a plurality of gestures, each gesture from among the plurality of gestures corresponding to a muscle generated electrical signal from the one or more Electromyography sensors; placing the wearable device on the user's body; performing by the user a first gesture from among the plurality of gestures, the first gesture corresponding to a first command; measuring with the wearable device a first set of muscle generated electrical signals; determining the first command based at least in part on processing the first set of muscle generated electrical signals according to the rule of correspondence; and executing the first command with the laser tracker.

2 . The method of claim 1 wherein in the step of determining the first command, the first command is selected from the group consisting of measuring a comp off point, measuring a comp axis point, measuring a plane, measuring a 2D line, measuring a circle, measuring a cylinder, measuring a sphere, changing an SMR, resetting an interferometer, setting a distance mode, searching for a target, toggling between single point mode and scan mode, collecting a reading, moving to a home position, removing a reading, autoadjusting an ADM using an SMR, autoadjusting an ADM using an internal retroreflector, initializing a command tablet, setting an SMR, and acquiring an SMR.

3 . The method of claim 1 wherein the step of providing the laser tracker further includes providing a camera and an auxiliary light source proximate to the camera.

4 . The method of claim 3 wherein the step of executing the first command further includes illuminating the auxiliary light source to obtain a second light, reflecting the second light off a retroreflector, and capturing a portion of the second light with the camera to obtain a digital representation of the portion of the second light.

5 . The method of claim 4 wherein the step of executing the first command further includes rotating the structure about at least one of the first axis and the second axis to place the first light beam onto the retroreflector.

Assignees

• Faro Tech Inc

Inventors

• Bridges Robert E
• Parker David H
• Fletcher Kelley

Classifications

• G01S17/86

  Combinations of lidar systems with systems other than lidar, radar or sonar, e.g. with direction finders · CPC title

• G01S3/786 Primary

  the desired condition being maintained automatically · CPC title

• G01S17/66

  Tracking systems using electromagnetic waves other than radio waves · CPC title

• G06T7/194

  involving foreground-background segmentation · CPC title

• G01B11/14

  for measuring distance or clearance between spaced objects or spaced apertures (G01B11/26 takes precedence; rangefinders G01C3/00) · CPC title