[Cause]
A 3-dimensional wide-area sensor alarm occurred. The acquired 3-dimensional map contains no 3-dimensional points.
[Countermeasure]
Please respond in sequence to the following:
・ Check that the camera is focused. If it is not, focus the camera and recalibrate it.
・ Check the pattern projected by the projector in the camera field of view. If the projected pattern is outside the field of view, adjust the camera orientation and recalibrate the camera.
・ Capture the projector's pattern with the camera and check for crushed blacks or white halos. If the pattern cannot be captured correctly, adjust projector light intensity and exposure time on the 3-dimensional wide-area sensor teaching screen.
・Acknowledging the correctness of the range specified in the acquisition area on the teaching image of the 3-D wide area sensor.