FARO Technologies, Inc.
Noncontact safety sensor and method of operation

Abstract:

A safety sensor system and method is provided. The method includes projecting from a projector a pattern of light to a first position. The pattern of light being generated by a shape control element with each of the first pattern of light having a pattern pose. A first image is captured with a camera of the first pattern of light. The pose or shape of the pattern of light is changed using the shape control element. A pattern pose or shape information is determined from both images. It is determined that the second image is valid based on the pattern pose or shape information differing by more than predetermined measurement errors or the pattern pose or shape information differing less than predetermined measurement errors from values that are based on the control values transmitted to the pattern pose and shape control element.