UAV Supercapacitor Backup Power for Hot-Swap Battery Replacement

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Solution Overview

Problem

The frequent need to replace lithium batteries in unmanned aerial vehicles (UAVs) leads to power failures and restarts, resulting in inefficiencies and time consumption, especially in high-efficiency applications.

Innovation Solution

A UAV charging system that includes a supercapacitor module and a battery module, where the supercapacitor is charged during normal use and provides backup power during battery replacement, allowing continuous operation without powering off or restarting the UAV.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If traditional battery replacement method is used, then battery can be replaced, but the UAV control system must be restarted causing power failure and time loss

Engineering Contradiction:
Improveexecution efficiency of UAVVSAvoidtime consumed for restart and re-configuration
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The supercapacitor module is pre-charged during normal battery operation to store sufficient energy. When battery replacement is needed, the supercapacitor immediately provides power to maintain system operation, eliminating the need for restart and re-configuration steps.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The supercapacitor module acts as an intermediary energy storage device between the battery and the UAV control system. It bridges the power gap during battery replacement, ensuring continuous power supply to the control system and motor without interruption.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Duration of action of stationary object

If battery replacement is performed frequently, then continuous operation can be maintained, but system restart and re-configuration consumes time and reduces efficiency

Engineering Contradiction:
Improvecontinuous operation durationVSAvoidtime for power failure and restart
Core Design Contradiction:
Duration of action of stationary objectVSLoss of time

Solution Approach 1:

The supercapacitor module ensures continuous power supply to the UAV control system during battery replacement operations. By maintaining uninterrupted power flow, it enables seamless battery swapping without stopping the UAV's operational tasks, thus achieving continuous useful action.

Inventive Principle:
Principle #20Continuity of useful action

3Reliability

If the UAV control system is restarted after battery replacement, then system can operate with new battery, but frequency, data and other parameters need re-setting

Engineering Contradiction:
Improvesystem operation reliabilityVSAvoidtime for re-setting frequency and updating data
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The supercapacitor is pre-charged during normal operation to store enough energy to cover the entire battery replacement process. This preliminary energy storage eliminates the need for system restart, thereby preventing the time-consuming re-configuration of frequency and data parameters.

Inventive Principle:
Principle #10Preliminary action

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This solution significantly improves the operational efficiency of UAVs by enabling seamless battery replacement without interruptions, reducing downtime and maintaining continuous operation, especially in unattended scenarios.

Implementation Method 1

a supercapacitor module and a battery module, wherein the supercapacitor module includes a supercapacitor unit, the battery module includes a UAV battery

Methodology Applied
Scientific EffectCapacitance: Capacitance

Data Source

PatentUS20240059435A1Unmanned aerial vehicle charging method and system and unmanned aerial vehicle
Publication Date: 2024.02.22 AUTEL ROBOTICS CO LTD
  • US20240059435A1 patent drawing
  • US20240059435A1 patent drawing
  • US20240059435A1 patent drawing

AI summary

The present application relates to the field of power supply technologies, an unmanned aerial vehicle (UAV) charging method and system and a UAV. The method includes: controlling a UAV to be in a data transmission mode when a UAV battery is normally powered, and powering a UAV control system and a motor through the UAV battery; charging a supercapacitor module through the UAV battery until the supercapacitor module is fully charged; and controlling the UAV to be in a standby mode when it is detected that the UAV battery is removed, and powering the UAV control system and the motor through the supercapacitor module. The supercapacitor module is charged through the UAV battery during normal use of the UAV. The supercapacitor module discharges during replacement of the battery, with backup electric energy stored in the supercapacitor module generating a current to power the UAV control system and the motor.