Payload Stabilization Platform That Avoids Gimbal Lock

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Solution Overview

Problem

Multidimensional gimbal systems are susceptible to gimbal lock, which deteriorates control and reliability, and there is a need for a stabilization platform that can change orientation without disturbing the payload's orientation and achieve compact or spread-out geometry configurations.

Innovation Solution

A stabilizing platform with a frame assembly and handle assembly that allows for switchable orientations, featuring motors that control movement about different axes depending on the handle assembly's orientation, and sensors to detect orientation changes and adjust motor control accordingly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a multidimensional gimbal system is used to stabilize a payload, then the payload can be stabilized in a coordinate system, but the system may encounter gimbal lock which deteriorates control and reliability

Engineering Contradiction:
Improvecontrol reliabilityVSAvoidgimbal lock
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent applies dynamics by making the gimbal system configurable between different operational modes (first mode with initial axis orientations, second mode with different axis orientations). This allows the system to dynamically adapt its geometry to avoid gimbal lock conditions while maintaining payload stabilization capability.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes geometric parameters by switching between different operational modes where the axes have different orientations. This parameter change allows the system to escape from gimbal lock configurations by altering the spatial relationships between rotational axes.

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If the handle assembly is made switchable between different orientations, then the system can achieve compact or spread-out geometry configurations, but this increases device complexity

Engineering Contradiction:
Improveconfiguration flexibilityVSAvoidsystem complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The handle assembly is designed with multi-functionality to serve different purposes: it can be held horizontally for one-handed operation, vertically for two-handed operation, or at intermediate angles. This universal design allows a single component to fulfill multiple operational requirements without requiring separate mechanisms for each configuration.

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

Solution Approach 2:

The handle assembly is made dynamically reconfigurable rather than fixed, allowing it to switch between different orientations during operation. This dynamic capability enables the system to adapt its geometry for different operational scenarios while using a single mechanical structure.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP3505808B1Systems and methods for payload stabilization
Publication Date: 2021.08.11 SZ DJI OSMO TECH CO LTD
  • EP3505808B1 patent drawingFigure 1
  • EP3505808B1 patent drawingFigure 2
  • EP3505808B1 patent drawingFigure 3

AI summary

Systems and methods are provided for supporting and articulating a payload using stabilization platform. The stabilization platform may be configured to avoid gimbal lock. The stabilization platform may be configured to automatically transition between different modes of orientation.