Method and system for determining a number of vehicle-to-X messages to be discarded
A method for determining a number of vehicle-to-X messages to be discarded, wherein a work cycle of a vehicle-to-X communication unit involves vehicle-to-X messages being received, wherein the work cycle involves a number of received vehicle-to-X messages being determined, wherein the work cycle involves an existent computation power being available and wherein the work cycle involves the number of vehicle-to-X messages to be discarded being determined on the basis of the number of received vehicle-to-X messages. The invention additionally relates to a corresponding system and to a use for the system.
1. A method for determining a number of vehicle-to-X messages to be discarded, the method comprising:
receiving, by a receiver of a vehicle, vehicle-to-X messages in an operating cycle of a vehicle-to-X communication transceiver;
determining, by an electronic computing device of the vehicle, a received number of vehicle-to-X messages in the operating cycle;
determining, by the electronic computing device of the vehicle, that processing the received number of vehicle-to-X messages in the operating cycle would exceed an available computing power of the electronic computing device;
determining, by the electronic computing device of the vehicle, in the operating cycle a selected number of the vehicle-to-X messages to discard such that a remaining number of the vehicle-to-X messages can be processed without exceeding the available computing power of the electronic computing device;
discarding the determined number of vehicle-to-X messages; and
controlling a communication-based driver assistance system of the vehicle based on at least one of the remaining number of vehicle-to-X messages.
2. The method as claimed in claim 1 , wherein classification parameters of a preprocessing technique are adapted in the operating cycle in such a way that the determined number of vehicle-to-X messages to be discarded leaves behind a number of vehicle-to-X messages to be processed that uses the available computing power in the operating cycle without exceeding this computing power.
3. The method as claimed in claim 2 , wherein the classification parameters are adapted by adapting threshold values.
4. The method as claimed in claim 2 , wherein the classification parameters are adapted by adapting applied relevance criteria.
5. The method as claimed in claim 2 , wherein the classification parameters are adapted differently for different communication-based driver assistance systems.
6. The method as claimed in claim 2 , wherein, the classification parameters comprise a distance of an originator of a vehicle-to-X message from a recipient of the vehicle-to-X message.
7. The method as claimed in claim 2 , wherein the classification parameters comprise a receive field strength of the vehicle-to-X message.
8. The method as claimed in claim 2 , wherein the classification parameters comprise a creation time of the vehicle-to-X message.
9. The method as claimed in claim 2 , wherein the classification parameters comprise a direction from which the vehicle-to-X message was received.
10. The method as claimed in claim 2 , wherein the classification parameters comprise a direction of an event described in the vehicle-to-X message.
11. The method as claimed in claim 2 , wherein the classification parameters comprise a number of relay processes from the originator of the vehicle-to-X message to the recipient of the vehicle-to-X message.
12. The method as claimed in claim 1 , wherein determining the number of vehicle-to-X messages to be discarded is performed by another electronic computing device that works independently of the electronic computing device implementing the communication-based driver assistance systems.
13. A system for determining a number of vehicle-to-X messages to be discarded, comprising:
a vehicle-to-X communication transceiver of a vehicle; and
at least one electronic computing device of the vehicle,
wherein the vehicle-to-X communication transceiver receives in an operating cycle, a number of vehicle-to-X messages,
wherein the electronic computing device is configured to:
determine that the received number of vehicle-to-X messages in the operating cycle would exceed an available computing power of the electronic computing device,
determine in the operating cycle a selected number of the received vehicle-to-X messages to discard such that a remaining number of the vehicle-to-X messages can be processed without exceeding the available computing power of the electronic computing device,
discard the determined number of vehicle-to-X messages, and
control a communication-based driver assistance system of the vehicle based on at least one of the remaining number of vehicle-to-X messages.
14. The system as claimed in claim 13 , wherein the system is designed to implement a method for determining the number of vehicle-to-X messages to be discarded, comprising:
receiving vehicle-to-X messages in an operating cycle of the vehicle-to-X communication transceiver, and
determining a number of received vehicle-to-X messages in the operating cycle,
wherein in the operating cycle an available computing power is provided, and
wherein in the operating cycle the number of vehicle-to-X messages to be discarded is determined on the basis of the number of received vehicle-to-X messages.