UAV Return Control Using Relative Position When GPS Fails
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Unmanned aerial vehicles (UAVs) face safety issues due to low accuracy or loss of satellite GPS navigation, leading to potential loss of control during flight missions.
Innovation Solution
A method and device for controlling flight equipment that monitors the operating state of the positioning system, allowing the UAV to return to a ground control terminal using relative position information when the system is abnormal, ensuring safe landing even in navigation failure scenarios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If satellite GPS navigation is used for UAV positioning, then navigation capability is provided, but safety is reduced when GPS signal is interfered with
Solution Approach 1:
The patent implements a return mechanism that is pre-configured and ready to activate when GPS signal interference occurs. The system calculates relative position information between the UAV and ground control terminal in advance, and has the return control logic prepared, so that when GPS signal interference is detected, the UAV can immediately execute the return operation without delay, thereby cushioning the harmful effect of signal interference on safety
Solution Approach 2:
The patent introduces relative position information as an intermediary between the GPS positioning system and the UAV control system. When GPS signal is interfered with, the system uses the pre-calculated relative position information (distance and direction from ground control terminal) to guide the UAV's return, rather than directly relying on the interfered GPS coordinates, thus mediating the harmful effect of GPS interference
2Reliability
If multiple positioning systems are deployed to improve reliability, then device complexity increases
Solution Approach 1:
The patent makes the existing GPS positioning system perform multiple functions: normal navigation positioning and failure detection. By adding the return mechanism that uses relative position information, the same positioning system serves dual purposes - providing navigation when working normally and enabling safe return when interfered with, without requiring completely separate redundant positioning systems
Solution Approach 2:
The system uses its own existing resources (positioning system, communication system, and control system) to solve the safety problem. The UAV's communication system sends and receives signals with the ground control terminal to obtain relative position information, and the control system processes this information to generate return commands, making the system self-sufficient without requiring external backup positioning infrastructure
Data Source
AI summary
Embodiments of the present application provide a method, device, storage medium, and electronic device for controlling flight equipment, wherein the method includes: acquiring positioning position information from a positioning system deployed on a target flight equipment; detecting an operating state of the positioning system according to positioning position information, wherein the operating state comprises: normal state and abnormal state; when the operating state is an abnormal state, controlling the target flight equipment to return to a ground control terminal according to the relative position information between the target flight equipment and the ground control terminal of the target flight equipment.