METHOD AND DEVICES FOR IDENTIFYING A VEHICLE USING A LOCATION
First Claim
1. A method for identifying a vehicle using a predetermined location, comprising:
- carrying, on the vehicle, an onboard unit that via radio repeatedly broadcasts status messages, which each indicate a current position of the onboard unit and a radio identifier that changes after each or several status messages;
receiving at least one status message in a radio beacon;
detecting a location usage of the vehicle by evaluating the at least one status message based on one or more positions indicated therein with respect to the predetermined location;
transmitting an identification request from the radio beacon to the onboard unit which is addressed by way of the radio identifier from the at least one status message; and
receiving and conducting a legitimacy check of the identification request in the onboard unit and, if the request is legitimate, transmitting an identification of the onboard unit to the radio beacon, the identification remaining the same over several changes of radio identifier.
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Accused Products
Abstract
Methods for identifying a vehicle using a predetermined location are provided, as well as a radio beacon and an onboard unit for use with the methods. One method comprises: carrying, on the vehicle, an onboard unit that broadcasts status messages that each indicate a current position of the onboard unit and a radio identifier that changes after each or several status messages; receiving at least one status message in a radio beacon; detecting a location usage of the vehicle by evaluating the status message(s) based on the position(s) indicated therein with respect to the predetermined location; transmitting an identification request from the radio beacon to the onboard unit addressed according to the radio identifier from the status message(s); receiving and conducting a legitimacy check of the identification request in the onboard unit and, if the request is legitimate, transmitting an identification of the onboard unit to the radio beacon.
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Citations
28 Claims
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1. A method for identifying a vehicle using a predetermined location, comprising:
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carrying, on the vehicle, an onboard unit that via radio repeatedly broadcasts status messages, which each indicate a current position of the onboard unit and a radio identifier that changes after each or several status messages; receiving at least one status message in a radio beacon; detecting a location usage of the vehicle by evaluating the at least one status message based on one or more positions indicated therein with respect to the predetermined location; transmitting an identification request from the radio beacon to the onboard unit which is addressed by way of the radio identifier from the at least one status message; and receiving and conducting a legitimacy check of the identification request in the onboard unit and, if the request is legitimate, transmitting an identification of the onboard unit to the radio beacon, the identification remaining the same over several changes of radio identifier. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A radio beacon for identifying a vehicle using a predetermined location, the vehicle carrying an onboard unit that via radio repeatedly broadcasts status messages, which each indicate a current position of the onboard unit and a radio identifier that changes after each or several status messages, the radio beacon configured to, with the aid of a processor and a transceiver connected thereto,
receive at least one status message; -
detect a location usage by evaluating the at least one status message based on one or more positions indicated therein with respect to the predetermined location; transmit an identification request to that onboard unit which is addressed by way of the radio identifier from the at least one status message; and receive an identification of the onboard unit that remains the same over several radio identifier changes. - View Dependent Claims (25, 26)
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27. An onboard unit, comprising a processor, a satellite navigation receiver for position determination, and a transceiver for radio communication, wherein the onboard unit is configured to, with the aid of the transceiver, repeatedly broadcast via radio status messages, which each contain a position determined by the satellite navigation receiver and a radio identifier of the onboard unit that changes after several status changes, the onboard unit further configured to
receive, from a radio beacon, an identification request that is addressed to the current radio identifier of the unit and contains a cryptographic sender certificate; -
validate the sender certificate; and if the sender certificate is valid, transmit an identification of the onboard unit to the radio beacon, the identification remaining the same over several changes of radio identifier. - View Dependent Claims (28)
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Specification