Patent ID: 8378609

Claim:
A motor-driven actuating system for a roller shutter or a sliding barrier, the system comprising: an obstacle sensing safety device comprising a sampler for taking, at position intervals, a plurality of reference values of at least one main physical parameter (ζ) along a travel path of the roller shutter or the sliding barrier, the at least one main physical parameter (ζ) relating to an operation of the actuating system; a profiler for generating from the plurality of reference values a reference profile of the at least one main physical parameter (ζ) along the travel path; and a processor for calculating a deviation between a value of the reference profile at an evaluation point and values of the at least one main physical parameter (ζ) acquired in real time, the processor modifying the operation of the actuating system depending on the deviation; wherein the processor processes a logic operation having as an operand at least the value (Ψ M (φ k )) of a variable (Ψ) acquired in real time and modifies the reference profile using the value (Ψ M (φ k )) of the variable (Ψ), and previously stored values.