METHOD AND DEVICE FOR TRIGGERING, USING AN RFID READER, A PROCEDURE FOR ACTUATING A MEANS FOR LOCKING/UNLOCKING THE ACCESS DOORS OF AN AUTOMOBILE

摘要

The invention relates to a method and device for triggering, using an RFID reader (5) provided with a transmitting antenna (6), a procedure for actuating a means for locking/unlocking the access doors (2) of an automobile (1). According to the method of the invention, a coil (7) is provided in the vicinity of and in the coverage area of the transmitting antenna (6), and the RFID reader (5) is driven so as to control the sequential transmission of electromagnetic pulses having the same power, a value representative of the electric voltage at the terminals of the coil (7) is measured upon each pulse, and a procedure for actuating the locking/unlocking means is triggered upon a variation in the measured values that is higher than a predetermined value.