Relative Position Tracking for Multi-Vehicle Coordination
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Solution Overview
Problem
Current unmanned ground vehicle systems lack the capability to simultaneously control multiple vehicles for coordinated tasks, necessitating a system to accurately position and track multiple moving apparatuses.
Innovation Solution
A relative position positioning system where each apparatus senses and transmits its displacement to others via wireless transmission, allowing each to update and maintain the relative positions of all other apparatuses, enabling simultaneous control and tracking of multiple vehicles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple unmanned ground vehicles are controlled through stand-alone manner, then each vehicle can operate independently, but the system cannot simultaneously control more than one vehicle to perform coordinated tasks
Solution Approach 1:
The positioning system is segmented into independent modules distributed on each vehicle. Each vehicle has its own sensor unit, wireless transmission unit, and processing unit that can independently measure displacement, transmit data, and calculate relative positions. This modular segmentation enables multi-vehicle coordination without requiring a centralized complex control system.
Solution Approach 2:
The system implements continuous feedback mechanisms where each vehicle real-time measures its displacement, transmits this information to other vehicles, and updates relative position calculations. This closed-loop feedback enables dynamic coordination and positioning adjustments among multiple vehicles operating simultaneously.
2Measurement precision
If each apparatus measures and transmits its own displacement to others, then accurate relative positioning is achieved, but communication bandwidth and transmission time increase
Solution Approach 1:
Multiple displacement measurement functions are merged into integrated processing units on each vehicle. The sensor unit, wireless transmission unit, and processing unit work as a combined system that simultaneously performs measurement, data processing, and transmission operations, reducing overall positioning update time while maintaining accuracy.
Solution Approach 2:
The system performs preliminary actions by pre-establishing relative position relationships during initialization periods. Each vehicle measures and stores initial relative position data before actual operations begin, so that during dynamic operations only displacement updates need to be transmitted and processed, reducing real-time communication requirements.
Data Source
AI summary
A relative position positioning system includes a first apparatus and a second apparatus. Each one of the first and second apparatuses is configured to sense a relative position of the other in an initialization period. In an operation period, each one of the first and second apparatuses is configured to measure its own displacement relative to a plane, transmit its own measured displacement to the other through a wireless transmission unit, and update the relative position of the other according to its own displacement and the displacement received from the other.