Receiver-Aware V2X Sensor Fusion Messaging for ITS
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Solution Overview
Problem
Existing wireless communication systems face challenges in accurately and efficiently transmitting and receiving vehicle-to-everything (V2X) messages in intelligent transport systems, particularly due to varying processing capabilities and sensor fusion limitations among communicating devices.
Innovation Solution
A method and device for transmitting V2X messages that involve acquiring filter information from a second station, utilizing multiple detection data sets from sensors, and configuring perceived object information based on the filter information, with options for sensor fusion or individual sensor data transmission depending on the receiving station's capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If sensor fusion is performed to improve accuracy of perceived object information, then measurement precision is improved, but device complexity increases due to additional processing requirements
Solution Approach 1:
The patent applies dynamics by making the sensor fusion processing adaptive rather than static. The transmitting device dynamically adjusts whether to perform sensor fusion based on the receiving device's processing capability, which is indicated through filter information exchange. This allows the system to optimize between accuracy and complexity in real-time according to network conditions and device capabilities.
Solution Approach 2:
The patent changes the processing parameter (whether to fuse sensors) based on the receiving device's capabilities. By exchanging filter information that indicates processing capabilities, the transmitting device can adjust its sensor processing approach - either fusing multiple sensor data sets for higher accuracy or transmitting individual sensor data for devices with limited processing capability.
2Device complexity
If individual sensor data is transmitted without fusion to reduce processing complexity, then device complexity is reduced, but measurement precision deteriorates due to loss of fused object information
Solution Approach 1:
The system dynamically selects between fused and individual sensor data transmission based on the receiving device's processing capability. This dynamic adaptation ensures that devices with limited processing power receive simpler data while devices with higher capabilities can utilize fused data for improved accuracy.
Solution Approach 2:
The transmitting device changes the data format parameter based on receiver capabilities - either transmitting fused perceived object information or individual sensor detection data sets. This parameter change is controlled by the filter information exchange that reveals processing capability requirements.
3Reliability
If V2X messages are transmitted with detailed sensor fusion results to improve reliability, then reliability is improved, but loss of time increases due to additional processing and transmission overhead
Solution Approach 1:
The patent applies partial action by transmitting only the necessary level of processing detail based on receiver needs. Instead of always transmitting complete fused results (excessive action), the system transmits only what is needed - either fused data for high-reliability scenarios or individual sensor data for time-critical scenarios with limited processing capability.
Solution Approach 2:
The system changes the message content parameter based on processing capability and timing requirements. By adjusting whether to include fused sensor data or individual sensor data in the V2X message, the system optimizes the balance between reliability and transmission latency.
Data Source
AI summary
A method of transmitting a signal by a first station (STA) in an intelligent transport system (ITS) according to various embodiments may comprise the steps of: obtaining filter information related to configuration of perceived object information from a second STA; obtaining multiple detected data sets for each object by means of multiple sensors; and transmitting, to the second STA, a vehicle-to-everything (V2X) message including the perceived object information on the basis of the obtained multiple detected data sets and the filter information, wherein the first STA determines, on the basis of the filter information, whether to configure the perceived object information by fusing the obtained multiple detected data sets or configure the perceived object information by using the detected data set of each sensor without fusion.