Proxy V2X Message Generation for Incomplete Road User Data
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In Intelligent Transport Systems (ITS), the incomplete database of road users' telematics data due to non-participating vehicles not sending Cooperative Awareness Messages (CAMs) limits the optimal utilization of V2X communication, resulting in suboptimal performance.
Innovation Solution
A computer-implemented method that uses a graphical modeling environment to create a V2X application with a telematics data comparison block, which identifies difference environment objects by comparing the Local Dynamic Map (LDM) object list with the sensor-object list, generating proxy V2X messages for missing objects, and sending these messages through a wireless adapter to ensure more complete data dissemination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If only participating vehicles send Cooperative Awareness Messages (CAMs), then the communication load is reduced, but the database of road users' telematics data becomes incomplete
Solution Approach 1:
The patent introduces a proxy message mechanism where a receiving vehicle acts as an intermediary to forward telematics data of non-participating vehicles. The proxy CAM contains the environment object's telematics data (position, speed, direction) that would otherwise be unavailable, allowing other road users to obtain complete information without requiring every vehicle to transmit its own CAM continuously.
2Loss of information
If proxy V2X messages are generated and transmitted for missing objects, then the dissemination of telematics data is improved, but the device complexity increases
Solution Approach 1:
The patent performs preliminary comparison between the local dynamic map (LDM) object list and sensor object list to identify difference environment objects before generating proxy messages. This preliminary identification step ensures that proxy CAMs are only created for objects that are actually missing from the LDM, avoiding unnecessary message generation and reducing overall system complexity.
Solution Approach 2:
The patent applies different processing rules to different types of environment objects. Participating vehicles that send their own CAMs are handled through normal V2X communication, while non-participating vehicles are identified and handled through the proxy message mechanism. This localized differentiation reduces unnecessary complexity in the overall system.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Computer-implemented method (1) for implementing a V2X application on target hardware (2) with a radio adapter (3), wherein the V2X application is modeled with a graphical modeling environment (4) in the form of a block diagram (5), wherein telematics data received from environment objects are recorded in an LDM object list (6), wherein telematics data determined from environment objects are recorded in a sensor object list (7), wherein a telematics data comparison block (8) determines difference environment objects by comparing the LDM object list (6) with the sensor object list (7), which are recorded only in the sensor object list, wherein a substitute V2X message (9) is created for at least one difference environment object with the telematics data of this difference environment object, wherein the block diagram (5) is translated into a V2X program (10) executable on the target hardware (2) and the V2X program (10) is executed on the target hardware (2) is transferred and executed there,wherein the proxy V2X message (9) is sent from the target hardware (2) via the radio adapter (3).