Laser alignment and calibration system for scanning lasers

摘要

A two dimensional scanning laser system may automatically detect a laser, then align and calibrate itself to scan over the sensor area. The system may have a laser with a controller that may cause the laser to be directed over two dimensions, as well as a sensor apparatus. The laser may be controlled with a mirror system that may pivot in two directions, thus allowing the laser to be scanned over a two dimensional area. The sensor may be a point sensor, where the laser may be positioned in a constant direction, as well as a larger area sensor where the laser may be moved across the sensor area to detect objects in a two or three dimensional space. An alignment and calibration sequence may cause the laser to scan across its operational area and detect the location of one or more sensors.

主权项

1. A system comprising:
a controllable laser transmitter comprising a laser producing a laser beam and having a first controllable dimension causing said laser beam to be controlled in a first arc; a first sensor that generates a laser sensed signal when said laser beam is received; a controller having a hardware processor and connected to said controllable laser transmitter and said first sensor, said controller that:
causes said laser beam to move along said first arc until said first sensor generates said laser sensed signal and defines a first location for said first sensor;causes said laser beam to continue to move along said first arc until said first sensor no longer generates said laser sensed signal and defines a second location for said first sensor;defines a sensing location for said first sensor being bounded by said first location and said second location; said controllable laser transmitter further comprising a second controllable dimension causing said laser beam to be controlled in a second arc; said controller that further:
causes said laser beam to move along said second arc until said first sensor generates said laser sensed signal and defines a third location for said first sensor;causes said laser beam to continue to move along said second arc until said first sensor no longer generates said laser sensed signal and defines a fourth location for said first sensor; andsaid sensing location being bounded by said first location, said second location, said third location, and said fourth location.