Inter-Vehicle Deviation Data Transmission for Route Following
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Solution Overview
Problem
Conventional inter-vehicle communication systems face challenges in enabling vehicles to follow an ideal route accurately due to deviations caused by road conditions, weather, and vehicle performance, and existing solutions are either inefficient or increase system complexity and cost.
Innovation Solution
A communication system where a leading vehicle calculates and transmits the difference between its actual position and an ideal route to a following vehicle, allowing the following vehicle to generate a route that approximates the ideal route without receiving the ideal route directly, using inter-vehicle communication with low bit rate and high security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the leading vehicle transmits the ideal route information directly to the following vehicle, then the following vehicle can accurately follow the ideal route, but the communication bit rate requirement increases and system complexity increases
Solution Approach 1:
The patent extracts only the essential information needed for route following - specifically the position difference (deviation) from the ideal route - rather than transmitting the complete ideal route trajectory. This extraction of critical information reduces communication data volume while maintaining following accuracy, directly resolving the contradiction between route following precision and communication system complexity.
Solution Approach 2:
Instead of transmitting the ideal route coordinates directly and having the following vehicle compute the deviation, the system inverts the approach by having the leading vehicle calculate and transmit only the deviation information. This inversion simplifies the communication content while preserving the ability to achieve accurate route following.
2Adaptability or versatility
If the leading vehicle transmits complete position information and ideal route data, then the following vehicle can calculate the optimal path, but the communication bit rate increases
Solution Approach 1:
The patent extracts only the deviation information from the complete position and route data, transmitting merely the essential correction needed for route following. This extraction maintains the following vehicle's ability to calculate the optimal path while dramatically reducing the communication data volume from complete coordinate sets to simple deviation values.
3Measurement precision
If additional communication means are used to transmit ideal route information, then route following accuracy improves, but system cost increases
Solution Approach 1:
The patent makes the existing inter-vehicle communication system multi-functional by using it to transmit both position information and deviation data for route following, rather than requiring a dedicated communication channel. This universal use of the existing communication infrastructure achieves accurate route following without increasing system cost or requiring additional communication hardware.
Data Source
AI summary
A first wireless device is mountable in a vehicle. An acquiring unit acquires position information on the vehicle in which the first wireless device is mounted. A calculating unit calculates a difference between the position information acquired by the acquiring unit and an ideal route for the vehicle. A communication unit transmits a packet signal that contains the difference calculated by the calculating unit and the position information acquired by the acquiring unit.