Vehicle-Network Data Exchange Using Selective Driving Information
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Solution Overview
Problem
The conventional method of passive data transmission between vehicle-side and network-side devices results in inefficient data exchange due to redundant information transfer and long delays, hindering effective vehicle control.
Innovation Solution
A data transmission method where the vehicle-side device actively sends a first message to request or report specific vehicle driving-related information, allowing the network-side device to determine and send a tailored second message based on the first message, optimizing the content and format for efficient and selective information exchange.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the network side device transmits all collected dynamic information to the vehicle-side device periodically or in real time, then the vehicle-side device can obtain comprehensive road condition information, but data transmission efficiency is reduced due to redundant information transfer
Solution Approach 1:
The patent extracts only the necessary road condition information that the vehicle-side device needs from the complete set of dynamic information collected by the network side device. The vehicle-side device sends a first message indicating specific information requirements, and the network side device sends back only the relevant portions in a second message, eliminating redundant data transmission while ensuring the vehicle receives sufficient road condition information for safe operation
Solution Approach 2:
The vehicle-side device performs preliminary action by sending a first message to the network side device before receiving the actual road condition information. This message contains information about what data the vehicle needs, allowing the network side device to prepare and send only the relevant information in the second message, thereby improving transmission efficiency while maintaining information completeness
2Reliability
If the vehicle-side device passively receives all dynamic information sent by the network side device, then the vehicle可以获得 comprehensive data, but transmission delays increase due to the volume of data
Solution Approach 1:
The patent extracts only the specific road condition information that is relevant to the vehicle's current needs from the complete set of dynamic information. By using the first message to indicate information requirements and the second message to transmit only relevant data, the system reduces the total data volume transmitted, thereby decreasing transmission delays while ensuring the vehicle receives all necessary information for safe operation
Solution Approach 2:
The vehicle-side device performs preliminary action by sending a first message to the network side device before receiving the actual road condition information. This preliminary message allows the network side device to prepare and send only the relevant information in the second message, reducing the amount of data that needs to be transmitted and thereby minimizing transmission delays while maintaining data completeness
Data Source
AI summary
A data transmission method includes a vehicle-side device that sends, to a network side device, a first message to obtain vehicle driving-related information. The vehicle-side device receives, from the network side device, a second message including the vehicle driving-related information, where content or a format of the second message is determined by the network side device based on the first message.