Lean V2X security processing strategy using kinematics information of vehicles
First Claim
1. A method of selectively verifying and processing messages within a vehicle-to-vehicle communication system, the method comprising the steps of:
- (a) a host vehicle receiving a message in the vehicle-to-vehicle communication system from a remote vehicle;
(b) evaluating a time-to-collision status between the host vehicle and the remote vehicle sending the message, the time-to-collision status being a function of a relative distance and a relative velocity between the host vehicle and the remote vehicle which are determined from data provided within a first portion of the message received from the respective remote vehicle;
(c) assigning an attentive factor to the remote vehicle based on the time-to-collision status, the attentive factor for a remote vehicle identifying a non-zero proportion of messages broadcast from the remote vehicle to be targeted for security processing, the proportion of messages being less than 100 percent;
(d) performing security processing of the message using a second portion of the message unless the attentive factor indicates the message should be ignored; and
(e) returning to step (a) for each subsequent message.
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Abstract
A vehicle-to-vehicle communication filtering system is provided to selectively process broadcast messages between a host vehicle and a remote vehicle. A processing unit evaluates a time-to-collision status between the host vehicle and the remote vehicle sending the message. The time-to-collision status is a function of a relative distance and a relative velocity between the host vehicle and the remote vehicle which are determined from data provided within a first portion of the message received from the remote vehicle. An attentive factor is assigned to each of the remote vehicles based on the time-to-collision with respect to each remote vehicle. The attentive factor identifies a proportion of messages broadcast from the remote vehicle to be targeted for security processing. Security processing of the message is performed based on a second portion of the message unless the attentive factor indicates the message should be ignored.
10 Citations
20 Claims
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1. A method of selectively verifying and processing messages within a vehicle-to-vehicle communication system, the method comprising the steps of:
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(a) a host vehicle receiving a message in the vehicle-to-vehicle communication system from a remote vehicle; (b) evaluating a time-to-collision status between the host vehicle and the remote vehicle sending the message, the time-to-collision status being a function of a relative distance and a relative velocity between the host vehicle and the remote vehicle which are determined from data provided within a first portion of the message received from the respective remote vehicle; (c) assigning an attentive factor to the remote vehicle based on the time-to-collision status, the attentive factor for a remote vehicle identifying a non-zero proportion of messages broadcast from the remote vehicle to be targeted for security processing, the proportion of messages being less than 100 percent; (d) performing security processing of the message using a second portion of the message unless the attentive factor indicates the message should be ignored; and (e) returning to step (a) for each subsequent message. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A vehicle-to-vehicle communication filtering system for selectively processing broadcast messages between a host vehicle and a remote vehicle, the system comprising:
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a processing unit for processing messages broadcast from a remote vehicle; a communication device for wirelessly broadcasting and receiving wireless messages; a GPS device for identifying a global position of the host vehicle; wherein the processing unit evaluates a time-to-collision status between the host vehicle and the remote vehicle sending the message, the time-to-collision status being a function of a relative distance and a relative velocity between the host vehicle and the remote vehicle which are determined from data provided within a first portion of the message received from the remote vehicle, wherein an attentive factor is assigned to each of the remote vehicles based on the time-to-collision with respect to each remote vehicle, the attentive factor for a remote vehicle identifying a non-zero proportion of messages broadcast from the remote vehicle to be targeted for security processing, the proportion of messages being less than 100 percent, wherein security processing of the message is performed based on a second portion of the message unless the attentive factor indicates the message should be ignored. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification