UAV Battery Protection Using Position-Based Return Energy Control
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Solution Overview
Problem
Conventional electric unmanned aerial vehicles (UAVs) face challenges in managing battery electricity, leading to accidents due to insufficient power, especially when flying to remote positions or calculating the necessary energy for return trips.
Innovation Solution
An intelligent method of managing electricity for electric UAVs, which involves real-time monitoring of battery remaining electricity and the UAV's position, calculates the safety electricity amount needed for specific commands, and automatically performs safety protection commands if the remaining electricity is insufficient.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional fixed reference voltage alarm method is used, then the alarm system is simple, but the UAV cannot receive alarms when flying to remote positions and may crash due to insufficient electricity monitoring
Solution Approach 1:
The system automatically calculates the safety electricity amount needed for return flight and performs self-protection by issuing alarms or controlling return landing without user intervention. The controller autonomously monitors battery electricity, calculates required return electricity based on position information, and executes protection commands, making the system self-sufficient in safety management.
Solution Approach 2:
The system continuously obtains real-time position information and battery electricity, compares current electricity with calculated safety requirements, and provides feedback through alarms or automatic return commands. This closed-loop feedback mechanism ensures the UAV responds appropriately to changing battery conditions during flight.
2Reliability
If the UAV returns early due to conservative electricity management, then safety is ensured, but battery utilization is reduced
Solution Approach 1:
The safety electricity amount is dynamically calculated based on real-time position information and flight conditions rather than using fixed thresholds. The system adjusts the required return electricity according to actual distance from home position and current battery state, enabling flexible decision-making that optimizes both safety and battery utilization.
Solution Approach 2:
The system changes the parameter of safety judgment from fixed voltage thresholds to dynamic calculations based on position coordinates and real-time battery electricity. By transforming the safety criterion into a variable parameter that adapts to flight conditions, the system achieves better balance between safety and productivity.
3Extent of automation
If real-time position-based safety electricity calculation is implemented, then the UAV can make intelligent return decisions, but the system complexity increases
Solution Approach 1:
The controller performs multiple functions: it manages basic battery monitoring, calculates position-based safety electricity requirements, issues alarms, and controls return flight. By consolidating these diverse functions into a single controller, the system achieves high automation without proportionally increasing overall system complexity.
Solution Approach 2:
The system pre-calculates the safety electricity amount needed for return flight based on position information before critical battery depletion occurs. By performing preliminary calculations and preparing protection strategies in advance, the system enables intelligent automated decisions without requiring complex real-time computation during critical low-battery scenarios.
Data Source
AI summary
An aerial vehicle includes a position sensor configured to obtain a present position of the aerial vehicle, a memory configured to store a preset position of the aerial vehicle, and a controller. The controller is configured to calculate, based on the present position and the preset position, safety energy information of the aerial vehicle; and control, based on the safety energy information and a present remaining energy amount of the aerial vehicle, the aerial vehicle to perform a safety protection command.