V2V Packet Verification Using Adaptive Coding Precision
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Autonomous vehicles face challenges in validating V2V messages due to transmission errors and OBU analysis errors, which compromises driving security by reducing data precision.
Innovation Solution
A method that determines a target coding precision and mode for data packets, generates verification information, and transmits it alongside the data packets to ensure accurate verification by limiting the impact of uncertain values during transmission and analysis, thereby ensuring autonomous driving security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If V2V messages are transmitted between autonomous vehicles, then wireless information interaction is enabled, but transmission errors and OBU analysis errors occur reducing data precision
Solution Approach 1:
The patent applies preliminary action by pre-defining coding modes and precision levels for different data items before transmission. The sending vehicle categorizes data items with different precision requirements and applies appropriate coding modes in advance, so that the receiving vehicle can verify data accuracy without being affected by transmission errors or OBU analysis errors.
Solution Approach 2:
The patent implements local quality by applying different coding modes to different data items based on their specific precision requirements. Instead of using a uniform coding approach, the system selectively applies high-precision or low-precision coding modes to different fields, ensuring that critical data maintains high precision while less critical data uses efficient low-precision coding.
2Measurement precision
If data packets are transmitted with high precision, then data accuracy is improved, but transmission efficiency decreases due to larger data size
Solution Approach 1:
The patent applies different coding modes to different data items based on their specific precision requirements. Instead of using a uniform coding approach, the system selectively applies high-precision or low-precision coding modes to different fields, ensuring that critical data maintains high precision while less critical data uses efficient low-precision coding.
Solution Approach 2:
The patent changes the precision parameter of different data items according to their importance and requirements. By adjusting the precision parameter dynamically, the system transmits only the necessary number of decimal places for each data type, reducing overall data size while maintaining required accuracy for critical measurements.
3Reliability
If all data items are verified with full precision, then verification accuracy is improved, but computational complexity increases
Solution Approach 1:
The patent implements local quality by applying different coding modes to different data items based on their specific precision requirements. Instead of using a uniform coding approach, the system selectively applies high-precision or low-precision coding modes to different fields, ensuring that critical data maintains high precision while less critical data uses efficient low-precision coding.
Solution Approach 2:
The patent segments data items into different categories based on their precision requirements and verification needs. By dividing the data verification process into segments with different precision levels, the system reduces overall computational complexity while maintaining verification accuracy for critical data items.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A method, apparatus, device, and medium for verifying vehicle information are provided. A specific implementation scheme is: determining a target coding precision and a target coding mode of a target data packet to be transmitted; coding the target data packet based on the target coding precision and the target coding mode, to determine target verification information of the target data packet; and transmitting the target data packet and the target verification information, to instruct a receiving-end vehicle to verify the target data packet based on the target verification information.