METHOD AND DEVICE FOR VALIDATING VEHICLE-TO-X MESSAGES IN ORDER TO REGULATE THE TRAFFIC FLOW
A method for validating vehicle-to-X messages by a computing apparatus of a vehicle comprises receiving at least one vehicle-to-X message comprising information for regulating the traffic flow, and validating the at least one message, wherein, within the framework of the validation, at least a part of the message content comprised by the at least one message is checked for the consistency thereof. A device for validating vehicle-to-X messages and a vehicle are also disclosed.
1 . A method for validating vehicle-to-X messages by a computing apparatus of a vehicle, having the steps of:
receiving at least one vehicle-to-X message comprising information for regulating the traffic flow; and
validating the at least one message, wherein, within the framework of the validation, at least a part of the message content comprised by the at least one message is checked for the consistency thereof.
2 . The method according to claim 1 , wherein a reception rate of at least two consecutively received messages, the comprised information of which displays the same transmitter, is established and the reception rate is compared with a threshold value.
3 . The method according to claim 1 , wherein the message content comprises signal status information for describing an authorization to proceed for a multiplicity of lanes of a roadway, wherein the consistency of the signal status information of at least a part of the multiplicity of lanes is examined.
4 . The method according to claim 1 , wherein the message content comprises signal status information, wherein the signal status information is examined with a light detection system of the vehicle.
5 . The method according to claim 1 , wherein the message content comprises topological definitions of lanes, wherein the consistency of the topological definitions of the lanes with features of the infrastructure detected by environment sensors of the vehicle is examined.
6 . The method according to claim 1 , wherein a reception direction of the signal transmitting the received message is established and it is examined whether the established reception direction of position information for describing a position of the transmitter, which is comprised by the message content, is inconsistent.
7 . The method according to claim 1 , wherein a reception power (RSSI) of the signal transmitting the received message is established and it is examined whether the established reception power of position information for describing a position of the transmitter, which is comprised by the message content, is inconsistent.
8 . The method according to claim 7 , wherein, on the basis of the established reception power, a transmission power is established with which the signal transmitting the received message was sent out by the transmitter and it is examined whether the established transmission power is inconsistent with a transmission power according to the specifications.
9 . The method according to claim 8 , wherein objects which can influence the reception power of the signal transmitting the received message are taken into account during the establishment of the transmission power.
10 . The method according to claim 7 , wherein the transmission power is established if the received message corresponds to a message type which is excluded from a reduction of the transmission power, and/or if the vehicle receiving the message is in an area in which sending out messages having a transmission power according to the specifications is not permitted.
11 . The method according to claim 8 , wherein the message content comprises information for describing a transmission power of the signal transmitting the message, wherein it is examined whether the established reception power is inconsistent with the information for describing the transmission power, which is comprised by the message content, and/or whether the established transmission power is inconsistent with information for describing the transmission power, which is comprised by the message content.
12 . The method according to claim 1 , wherein the message content is checked by utilizing information for describing features concerning the transmitter, and the information for describing features concerning the transmitter is stored in a data memory of the vehicle and/or is provided by a data processing apparatus not belonging to the vehicle.
13 . The method according to claim 1 , wherein the message content of at least two received messages displaying the same transmitter is utilized for checking at least one item of this message content of the at least two received messages.
14 . The method according to claim 13 , wherein the message content of the at least two received messages comprises traffic control signals which are examined in their temporal sequence and/or timing for inconsistencies.
15 . A device for validating vehicle-to-X messages, wherein the device is configured to:
receive at least one vehicle-to-X message comprising information for regulating traffic flow; and
validate the at least one vehicle-to-X message, wherein, within the framework of the validation, at least a part of the message content comprised by the at least one message is checked for consistency.
16 . A vehicle comprising:
a device for validating vehicle-to-X messages, wherein the device is configured to:
receive at least one vehicle-to-X message comprising information for regulating traffic flow; and
validate the at least one vehicle-to-X message, wherein, within the framework of the validation, at least a part of the message content comprised by the at least one message is checked for consistency.