UAV Target Tracking With Automatic Image-Based Position Control

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Solution Overview

Problem

Current UAV tracking methods require manual control, which can be challenging, especially when targets are moving quickly or partially obscured, and demand dual attention for navigation and camera operation, increasing costs and complexity.

Innovation Solution

A system and method for UAVs to automatically or semi-automatically track targets by receiving target information from a control terminal, allowing the UAV to maintain the target's position and size within images captured, enabling a single user to control navigation and tracking concurrently.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If manual tracking control is used by a dedicated user operating a remote control terminal, then the camera can be controlled to track the target, but the operation becomes difficult when the target is moving quickly or partially blocked, and additional personnel are required increasing cost

Engineering Contradiction:
Improvetracking reliabilityVSAvoidease of manual tracking
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The system enables the UAV to perform tracking autonomously by detecting target features in captured images and automatically adjusting flight parameters and camera orientation to maintain target positioning, eliminating the need for manual intervention and allowing a single operator to control both navigation and tracking

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces the mechanical manual control system with an automated computer vision system that uses image processing algorithms to detect and track targets, substituting human operators' manual adjustments with automated digital processing and control

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If a dedicated user controls the camera separately from navigation control, then tracking can be achieved, but the cost for aerial photography increases due to additional personnel requirements

Engineering Contradiction:
Improvetracking capabilityVSAvoidoperational complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system merges camera control and navigation control into a single integrated system where one operator can control both functions simultaneously through a unified interface, reducing operational complexity while maintaining tracking capability

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The control terminal is designed to perform multiple functions including both navigation control and camera tracking control, allowing a single device and operator to handle tasks that previously required separate specialized controls and personnel

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Reliability

If manual tracking is used, then the camera can follow the target, but the attention required for manual tracking increases operator workload and reduces productivity

Engineering Contradiction:
Improvetracking accuracyVSAvoidoperational efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The tracking system operates autonomously by continuously analyzing captured images to detect target features and automatically adjusting system parameters to maintain tracking, freeing operators from continuous manual attention and enabling them to perform additional tasks

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system maintains continuous automatic tracking operation without interruption or manual intervention, ensuring uninterrupted monitoring of targets while reducing operator workload and enabling sustained high-speed tracking capability

Inventive Principle:
Principle #20Continuity of useful action

Data Source

PatentEP3862837B1Systems and methods for target tracking
Publication Date: 2023.05.03 SZ DJI TECH CO LTD
  • EP3862837B1 patent drawingFigure 1
  • EP3862837B1 patent drawingFigure 2
  • EP3862837B1 patent drawingFigure 3

AI summary

The present invention provides systems, methods, and devices related to target tracking by UAVs. The UAV may be configured to receive target information from a control terminal related to a target to be tracked by an imaging device coupled to the UAV. The target information may be used by the UAV to automatically track the target so as to maintain predetermined position and/or size of the target within one or more images captured by the imaging device. The control terminal may be configured to display images from the imaging device as well as allowing user input related to the target information.