Active Gimbal Payload Stabilization With Feedback Torque Control
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Solution Overview
Problem
Existing camera stabilization systems, particularly for miniaturized and lightweight cameras, face challenges in providing consistent stabilization control and require significant training and skill to operate effectively.
Innovation Solution
An actively stabilized payload support apparatus with a gimbal having perpendicular axes and a torque generator system, coupled with processing devices and algorithms that measure rotation angles and generate torques to stabilize the payload.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If passive inertial stabilizers are used, then angular and spatial stability is achieved, but significant training time and operator skill are required
Solution Approach 1:
The patent replaces passive mechanical inertial stabilization with an active control system using torque generators (electromagnetic actuators) to provide stabilizing torques. This substitution eliminates the need for operator skill by automating the stabilization function through feedback control algorithms that process sensor data and generate corrective torques.
Solution Approach 2:
The system implements feedback control by continuously measuring payload orientation using sensors (accelerometers, gyroscopes), comparing measured values with desired values, and adjusting torque generator outputs accordingly. This closed-loop feedback mechanism automatically maintains stability without requiring operator intervention or training.
2Stability of the object's composition
If passive inertial stabilizers are used, then stability is achieved, but device complexity increases
Solution Approach 1:
The patent integrates multiple functions into a unified active stabilization system: sensors provide both measurement and feedback, torque generators provide both actuation and control, and algorithms handle multiple stabilization tasks simultaneously. This multi-functional integration reduces overall system complexity compared to separate passive mechanical components.
Solution Approach 2:
The stabilization system is self-regulating through automated feedback control. The system monitors its own state via sensors, computes required corrections via algorithms, and executes adjustments via torque generators without external intervention. This self-service capability simplifies the system by eliminating the need for complex mechanical passive stabilization mechanisms.
3Stability of the object's composition
If active stabilization with torque generators is implemented, then angular stability is enhanced, but use of energy increases
Solution Approach 1:
The active stabilization system operates using periodic feedback control cycles: sensors measure payload orientation, algorithms compute required torques, and torque generators apply corrective forces at regular intervals. This periodic operation allows the system to maintain stability with intermittent energy input rather than continuous high energy consumption, optimizing energy efficiency.
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
The system provides enhanced angular stability and reduces the need for operator skill, allowing for smooth and quality image capture even in unstable conditions.
Implementation Method 1
a torque generator system that includes torque generators for one or more of the gimbal axes
Implementation Method 2
a rotation measuring device measures an angle θ of rotation of a pan shaft or pan motion
Implementation Method 3
The payload support apparatus has a gimbal with a first gimbal axis, for example a roll axis, and a second gimbal axis, such as a tilt axis
Data Source
AI summary
A payload stabilizer and methods for stabilizing a payload suitable for use with video camera payloads. The support and stabilizing apparatus has a gimbal having two or more mutually perpendicular axes about which motion is generated by at least two of a pan motor, a tilt motor and a roll motor wherein the pan motor is integral to the gimbal handle and surrounds the main post. The stabilizer has a feedback system providing supplemental torques to the payload through a gimbal.