Movable Platform Position Control Near Prohibited Areas
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Solution Overview
Problem
Existing technologies for controlling movable platforms, such as UAVs, lack accurate methods to determine their relative position with respect to designated movable and prohibited movement areas, leading to potential unsafe accidents.
Innovation Solution
A method and apparatus that determine a first area as a movable area and a second area as a prohibited movement area, using positioning devices to acquire platform positions, and calculate relative positions through analytical solutions and vector dot products to implement control strategies ensuring safe operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the distance between UAV location and no-fly area is used to determine relative position, then the control method is simple, but the position determination accuracy is insufficient leading to potential unsafe accidents
Solution Approach 1:
The spatial set is segmented into multiple discrete areas (first area, second area, third area) with different safety levels. Instead of treating the space as continuous, the method divides it into distinct zones where each zone has predetermined control strategies, enabling both simple implementation and accurate position determination.
Solution Approach 2:
Different regions of the spatial set are assigned different properties and control strategies. The first area (safe zone) allows normal operation, the second area (prohibited zone) triggers avoidance maneuvers, and the third area (warning zone) activates alert protocols. This local differentiation enables precise position-based control while maintaining system simplicity.
2Reliability
If complex position determination methods are used to improve safety, then position accuracy is improved, but the system complexity increases
Solution Approach 1:
The spatial set is pre-divided into distinct areas with predetermined control strategies before the movable platform operates. The first area, second area, and third area are established in advance with their respective control protocols, eliminating the need for complex real-time calculations and reducing system complexity while maintaining high safety standards.
Solution Approach 2:
The control strategy changes based on the parameter of relative position determination. By using the determined relative position (first position, second position, third position) as the key parameter, the system selects appropriate control strategies from a predefined set, achieving high reliability through parameter-based decision making without requiring complex control algorithms.
Data Source
AI summary
A control device for a movable platform may include a memory and a processor; the memory storing a computer program, wherein when the processor executes the computer program, the processor is configured to determine a first area and a second area, wherein the first area is a movable area of the movable platform, the second area is a prohibited movement area of the movable platform; obtain a first position of the movable platform and a second position within the second area; and determine a relative position of the movable platform with respect to the first area based on the first position and the second position.