UAV Flight Protection Strategy for Positioning Failure States
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Unmanned aerial vehicles (UAVs) face a high risk of explosion and reduced flight safety when their positioning systems fail, particularly in environments with weak GPS signals or poor weather conditions.
Innovation Solution
A method for protecting UAVs by acquiring their flight speed at the moment before the positioning system fails, determining the flight state as either low-speed or high-speed, and adjusting the flight protection strategy accordingly to reduce the risk of explosion and enhance safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the positioning system fails and the flight mode is switched to attitude mode, then the UAV can continue to fly, but the UAV enters a random flying state which increases explosion probability
Solution Approach 1:
The patent applies preliminary action by acquiring the flight speed at the moment before positioning system failure occurs. This pre-acquired speed information is then used to determine the flight state and select an appropriate protection strategy, preventing the UAV from entering a random flying state and reducing explosion probability.
Solution Approach 2:
The patent changes the parameter of flight protection strategy based on the determined flight state. When low-speed flight state is detected, the strategy includes adjusting flight attitude and climbing to preset height. When high-speed flight state is detected, the strategy includes adjusting flight attitude and hovering to drop to set height. This parameter change approach optimizes the protection strategy to match the actual flight conditions.
2Device complexity
If a unified flight protection strategy is used regardless of flight speed, then the control logic is simple, but the protection effectiveness is reduced for different flight states
Solution Approach 1:
The patent segments the flight protection strategy into different branches based on flight speed. By comparing the acquired flight speed with preset thresholds, the system divides the protection process into low-speed flight state handling and high-speed flight state handling, each with tailored protection measures that improve overall effectiveness.
Solution Approach 2:
The patent makes the flight protection strategy dynamic by adapting it to the current flight state. The control logic dynamically selects between different protection approaches (climbing for low-speed, hovering and dropping for high-speed) based on real-time speed assessment, making the system both adaptable and effectively protective.
Data Source
AI summary
A method and an apparatus for protecting an unmanned aerial vehicle and an unmanned aerial vehicle are provided. After a positioning system of the unmanned aerial vehicle fails, a flight speed of the unmanned aerial vehicle is acquired at a time point before the positioning system fails, and then a flight state of the unmanned aerial vehicle is determined according to the flight speed, where the flight state includes a low-speed flight state and a high-speed flight state; and then a flight protection strategy of the unmanned aerial vehicle is adjusted according to the flight state. By implementing the method, after the positioning system of the unmanned aerial vehicle is in failure, explosion probability of the unmanned aerial vehicle can be reduced, and flight safety of the unmanned aerial vehicle can be improved.