Patent ID: 8355886

Claim:
Method to determine the misalignment and/or clearance of a door relative to its frame, using a system of measurement sensors adapted to perform measurements of clearance and/or misalignment at different inspection points (Pi) of the door, characterized in that it comprises: a phase to determine a law of variation of the clearance and/or misalignment values for the different inspection points (P i ) in relation to various opening positions of the door with respect to a reference position in which the door occupies its reference closed position, corresponding to a reference inspection point (P 0 ) of the door, the phase to determine a law of variation consisting of a learning phase on a door, during which clearance and/or misalignment values are measured at the different inspection points in relation to various opening positions of the door, the learning phase determining for the inspection points (Pi) a law of variation: for clearance such that: J Pi =K +f(D P0 ) in which K is a constant determined during the learning phase and f(D P0 ) is a mathematical function dependent upon the misalignment value D P0 at the reference inspection point (P 0 ), for misalignment such that: D Pi =K 1 +f 1 (D P0 ) in which K 1 is a constant determined during the learning phase and f 1 (D P0 ) is a mathematical function dependent upon the misalignment value D P0 at the reference inspection point (P 0 ) a measurement phase in which the door ( 1 ) occupies any position relative to the frame and in which clearance and/or misalignment values are measured at the different inspection points of the door, and a phase to take into account the measured clearance and/or misalignment values and the law of variation so as to determine the true values of clearance and/or misalignment at the different inspection points corresponding to the door in its reference closed position.