V2V Message Service Apparatus for Targeted Road Link Delivery
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Solution Overview
Problem
Existing V2V communication systems face challenges in achieving low latency and accurate service provision due to a lack of technology that effectively analyzes the preceding and trailing relationships between vehicles, making it difficult to deliver targeted messages efficiently.
Innovation Solution
A V2V message service method and apparatus that utilize a publish-subscribe communication scheme to transmit messages between vehicles, allowing vehicles to subscribe to specific road links as topics, determine relationships, and issue alarms based on these relationships, thereby optimizing message delivery and reducing latency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If V2V communication focuses on direct communication technology between vehicles, then communication speed is improved, but service accuracy deteriorates due to inability to analyze preceding and trailing relationships
Solution Approach 1:
The patent introduces a V2V message server as an intermediary component that receives messages from publishing vehicles, analyzes the spatial relationships between vehicles using map data and location information, and distributes messages to appropriate subscriber vehicles. This mediator resolves the contradiction by maintaining fast direct communication while adding relationship analysis capability through the server.
Solution Approach 2:
The patent segments the V2V communication system into distinct functional components: message publishing in the transmitting vehicle, centralized relationship analysis in the V2V message server, and message subscription in the receiving vehicle. This segmentation allows each component to specialize in its function, achieving both fast communication and accurate service delivery.
2Area of stationary object
If V2V communication delivers messages to all vehicles in an area, then message coverage is improved, but message relevance deteriorates due to lack of targeted delivery
Solution Approach 1:
The patent applies local quality by making message distribution selective rather than uniform. The V2V message server evaluates the spatial relationship between the publishing vehicle and potential subscriber vehicles, then distributes messages only to those in relevant positions (e.g., trailing vehicles for braking events, preceding vehicles for acceleration events). This ensures broad coverage when needed while maintaining high relevance for each recipient.
Solution Approach 2:
The message distribution system is dynamic, adjusting which vehicles receive messages based on real-time location data and the nature of the event. The system can expand coverage to all vehicles in an area when appropriate, or restrict it to specific vehicles based on their relationship to the event, making the coverage area flexible rather than fixed.
3Measurement precision
If V2V communication introduces a dedicated system to analyze vehicle relationships, then service accuracy is improved, but system complexity increases
Solution Approach 1:
The patent merges the relationship analysis function with the existing V2V message server, which already handles message routing and distribution. By combining these functions in a single centralized component rather than adding separate dedicated systems in each vehicle, the patent achieves accurate relationship analysis while minimizing the increase in overall system complexity.
Solution Approach 2:
The V2V message server is designed as a multi-functional component that handles both message routing and spatial relationship analysis. This universal approach allows a single system to perform multiple functions, reducing the need for additional dedicated hardware or software in each vehicle and thereby limiting the increase in system complexity.
Data Source
AI summary
A method and an apparatus for vehicle-to-vehicle or V2V message service are disclosed. In at least one aspect, a method of operating a V2V message service apparatus in a V2V communication system includes when a first vehicle equipped with the V2V message service apparatus enters a particular road link, subscribing the first vehicle to a V2V message server with the particular road link as a topic, and receiving an event message including an event-situated road link as a topic from the V2V message server, and determining whether to issue an alarm corresponding to the event message based on a preceding and trailing relationship between the first vehicle and a second vehicle that published the event message.