Platooning Waypoint Relay for Scalable Historical Path Transmission
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Solution Overview
Problem
In platooning, the leading vehicle's communication resources are excessively occupied due to the need to transmit historical waypoint information to all following vehicles, affecting operation efficiency and safety as the number of vehicles increases.
Innovation Solution
A system and method where a dedicated apparatus receives and stores waypoint information from the leading vehicle, determines target waypoint information based on historical data, and sends it only to the vehicle that needs it, reducing the burden on the leading vehicle's communication resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the leading vehicle transmits entire historical waypoints to all following vehicles, then all following vehicles can obtain necessary path information, but communication resources of the leading vehicle are excessively occupied
Solution Approach 1:
The patent applies local quality by transmitting different amounts of waypoint information to different following vehicles based on their specific needs. Each following vehicle receives only the historical waypoints necessary for its position and following requirements, rather than all vehicles receiving the complete historical waypoint set. This differentiated transmission approach reduces the leading vehicle's communication burden while ensuring each vehicle gets adequate path information.
Solution Approach 2:
The patent segments the historical waypoint information transmission by dividing it into targeted portions for each following vehicle. Instead of broadcasting the entire historical waypoint dataset to all vehicles, the system segments and transmits only the relevant subset of waypoints that each following vehicle needs based on its position in the platoon and following distance requirements.
2Reliability
If the number of following vehicles increases, then the platooning formation becomes more robust, but the overall physical length increases and more historical waypoints need to be transmitted
Solution Approach 1:
The patent addresses this contradiction by applying local quality - each following vehicle receives waypoint information tailored to its specific position and needs in the platoon. Vehicles closer to the leading vehicle receive fewer historical waypoints, while vehicles farther back receive more. This targeted approach allows the platoon to scale to more vehicles without proportionally increasing the communication time burden on the leading vehicle.
3Reliability
If all following vehicles receive complete historical waypoint information, then each vehicle has sufficient path basis for automated driving decisions, but too many communication resources are occupied affecting operation efficiency and safety
Solution Approach 1:
The patent implements local quality by providing each following vehicle with the specific amount and type of historical waypoint information needed for its automated driving decisions. Rather than uniformly distributing complete historical data to all vehicles, the system calculates and transmits only the relevant waypoint subsets that each vehicle requires based on its position, speed, and following control needs, thereby maintaining decision accuracy while improving operational efficiency.
Data Source
AI summary
A waypoint information transmission method, apparatus and system for platooning are provided. An example method for transmitting waypoint information of a platooning comprises: receiving, by an apparatus for transmitting waypoint information in real time, waypoint information of each cycle sent by a leading vehicle-mounted apparatus mounted on a leading vehicle; storing, by the apparatus, the waypoint information of each cycle, so as to form historical waypoint information; receiving, by the apparatus, a waypoint information transmission control instruction sent by the leading vehicle-mounted apparatus, and determining, according to the waypoint information transmission control instruction, target waypoint information based on the historical waypoint information; and sending, by the apparatus, the target waypoint information to a first vehicle-mounted apparatus mounted on a first following vehicle that is following the leading vehicle and to be enqueued for the platooning.