UAV Multi-ocular Imaging System Vibration Mitigation

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Solution Overview

Problem

Existing multi-ocular imaging systems on UAVs are prone to non-rigid body vibrations, leading to decreased reliability of the obtained information.

Innovation Solution

The multi-ocular imaging assembly is disposed and fixed within the UAV's vehicle body, incorporating shock absorbing pads and adjustable baseline lengths between imaging devices to mitigate vibrations and enhance data accuracy.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the multi-ocular imaging assembly is provided on the exterior of the UAV via a connection component, then the imaging devices can be easily installed and accessed, but the assembly is subject to non-rigid body vibration which decreases the reliability of the obtained information

Engineering Contradiction:
Improvereliability of obtained informationVSAvoidnon-rigid body vibration
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The multi-ocular imaging assembly is nested within the vehicle body interior rather than being mounted on the exterior. The imaging devices are disposed inside the vehicle body and fixed to its interior surface, creating a nested configuration where the imaging system is protected within the structural envelope of the UAV, thereby eliminating exposure to external vibrations and improving measurement reliability

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The imaging assembly is extracted from the exterior mounting configuration and relocated to the interior of the vehicle body. This extraction removes the imaging devices from the harmful external environment where they would be subjected to non-rigid body vibrations, allowing them to operate in a more stable internal environment

Inventive Principle:
Principle #2Taking out (Extraction)

2Reliability

If multiple imaging devices are disposed inside the vehicle body, then vibration impact is reduced improving measurement reliability, but the device complexity and installation difficulty increase

Engineering Contradiction:
Improvemeasurement reliabilityVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

Multiple imaging devices are merged into a single integrated multi-ocular imaging assembly that is disposed together within the vehicle body. The imaging devices are positioned at predetermined locations forming a coordinated system, and are fixed to the vehicle body interior as a unified structure, which reduces overall device complexity compared to separate mounting of individual devices

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The multi-ocular imaging assembly serves multiple functions simultaneously: it provides depth information for obstacle avoidance, velocity measurement, positioning, and navigation. By combining multiple imaging devices into a single assembly with multiple functions, the system achieves high measurement reliability without proportionally increasing complexity

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

Data Source

PatentUS11343443B2Unmanned aerial vehicle and multi-ocular imaging system
Publication Date: 2022.05.24 SZ DJI TECH CO LTD
  • US11343443B2 patent drawing
  • US11343443B2 patent drawing
  • US11343443B2 patent drawing

AI summary

An unmanned aerial vehicle (UAV) includes a vehicle body and a multi-ocular imaging assembly. The multi-ocular imaging assembly includes at least two imaging devices disposed in and fixed to the vehicle body.