METHOD AND DEVICE FOR DETERMINING SECURE DISTANCE

• Main Authors: HLADIK, ROBERT, KILIAN LENNART, SCHWARZER STEFAN, GLESER ULRICH, SCHU LER, GEORG, WOBISCHLER JOHANNES, SINGHEIM, CHRISTIAN, K
• Format: Patent
• Language: Chinese; English
• Published: 09.09.2022
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; BLASTING; CALCULATING; COMPUTING; COUNTING; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRIC DIGITAL DATA PROCESSING; ELECTRICITY; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; MECHANICAL ENGINEERING; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; SAFETY DEVICES IN GENERAL; TESTING; THERMAL INSULATION IN GENERAL; WEAPONS; WIRELESS COMMUNICATIONS NETWORKS

The invention relates to a method for determining a secure distance between a wireless communication object transponder (T) and at least one anchor gateway (G1-G3) according to a two-way ranging method, said object transponder and said anchor gateway each having means for detecting a timestamp, characterized in that the distance between the object transponder (T) and the anchor gateway (G1-G3) is determined according to the two-way ranging method. The following steps are carried out: a) detecting the transmission and reception timestamps of the respective communication messages on the transponder (T) and the at least one anchor gateway (G1-G3) side, b) transmitting the respective timestamps from the transponder (T) and the at least one anchor gateway (G1-G3) together with at least one respective timestamp check information to the fail-safe computing device (F-CPU), c) performing at least one check by the fail-safe computing device (F-CPU) selected from: c1) checking the correctness of the corresponding timest