IoT Platoon Communication Mode Planning for V2X Coverage Gaps
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Solution Overview
Problem
In vehicle-to-everything (V2X) communication, platooning scenarios face challenges with communication mode reliability and continuity, especially in congested areas or areas with poor network coverage, leading to potential traffic accidents due to delayed or disrupted information exchange between vehicles.
Innovation Solution
An IoT platform manages communication modes for platoons by planning and dynamically updating them based on real-time network and map information, ensuring reliable and efficient communication by selecting appropriate communication modes such as PC5 or Uu, and adjusting them as needed to maintain continuous and timely information exchange.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If PC5 communication mode is used for short-distance communication in platooning, then latency is reduced and communication speed is improved, but reliability deteriorates due to congestion and blocking in congested road sections
Solution Approach 1:
The system dynamically switches between PC5 and Uu communication modes based on real-time conditions. The communication mode is not fixed but adapts to changing environmental factors such as congestion levels and network coverage, allowing the system to maintain both speed and reliability by selecting the appropriate mode for each situation
Solution Approach 2:
The system changes the communication parameter (mode selection) based on environmental conditions. By monitoring factors like congestion and network coverage, the system adjusts the communication mode parameter to optimize both speed and reliability, transitioning from PC5 in good conditions to Uu in congested conditions
2Reliability
If Uu communication mode is used for long-distance communication through base station, then reliability is improved, but communication delay increases
Solution Approach 1:
The system dynamically selects communication modes based on real-time conditions. When Uu mode is selected for reliability, the system does so temporarily and switches back to PC5 when conditions improve, minimizing the time spent in the higher-latency mode while maintaining reliability when necessary
Solution Approach 2:
The system performs preliminary assessment of communication conditions before selecting a mode. By evaluating congestion and network coverage in advance, the system can proactively switch to Uu mode before communication failures occur, preventing delays rather than reacting to them
3Ease of operation
If each platoon member independently decides communication mode switchover, then local responsiveness is improved, but communication consistency deteriorates due to one-by-one switchover and repeated switching
Solution Approach 1:
The system merges the decision-making function at the platform level, where a central IoT platform with global information makes unified communication mode decisions for the entire platoon. This eliminates independent decisions by individual members, ensuring consistent mode selection across all vehicles while the platform maintains responsiveness through real-time condition monitoring
Solution Approach 2:
The IoT platform acts as an intermediary between individual platoon members and the communication mode selection process. Instead of members making independent decisions, the platform receives information from all members and environmental sensors, then coordinates a unified mode switch for the entire platoon, ensuring consistency while maintaining responsiveness
Data Source
AI summary
This application provides an internet of things platoon communication method. In this method, an internet of things platform plans and manages a communication mode of a platoon in a traveling process. In the traveling process, the platoon selects, based on a communication mode plan sent by the platform, a communication mode corresponding to a current location of the platoon for communication. Because the platform can obtain global information such as a network and a map, the communication mode planned by the platform is more reasonable and accurate. This resolves a problem of one-by-one switchover and repeated switchover of fleet members at road sections such as a congested road section, a road section with poor network coverage, and a multi-block road section.