An overhead hazard warning system for an elevated work platform comprises a projector coupled to the work platform and configured to project a pattern of light downwardly to produce a visual indication on a surface below the work platform, a range finder configured to produce an elevation signal representative of a height of the projector relative to the surface below the work platform, and a controller connected to receive the elevation signal and configured to control the projector based on the elevation signal.
Overhead hazard warning systems
2016-05-10
Patent
Electronic Resource
English
IPC: | G08B SIGNALLING OR CALLING SYSTEMS , Signalisier- oder Rufsysteme / F16P SAFETY DEVICES IN GENERAL , Schutzvorrichtungen allgemein / B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last |