SECURITY DETECTION DEVICE, METHOD AND SYSTEM FOR PRESENCE DETECTION BY RFID DETECTION ON A TRACK, IN PARTICULAR RAILWAY.

摘要

The present invention relates to a safe system and method for detecting the presence of a vehicle in a portion of a traffic lane, in particular a railway lane, as well as an RFID barrier detection device used with or within such a process system. or safe system. The reader module selects and sends a series of query data to its reference module. This calculates and returns a series of response data based on the received query data. A security calculator verifies that the response data corresponds to the interrogation data and the tag of the reference module. A good correspondence, renewed on a sufficient number of data, large makes it possible to guarantee a probability of catastrophic event lower than a chosen value. - The response data are calculated for example by reading memory boxes in the tag from a list of addresses issued by the reader.