Adaptive Gimbal Control for Variable Payload Inertia
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Solution Overview
Problem
Existing active stabilization systems for payloads on movable platforms face challenges in adapting to different payload types, leading to potential damage from improper mounting or varying physical characteristics, such as moment of inertia, which can cause oscillations or motor overloads.
Innovation Solution
A method and apparatus that automatically select and adjust control parameters based on the motion characteristics of the payload, using processors to determine the optimal settings for stabilizing the platform, thereby ensuring safe and effective stabilization across various payload types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a fixed set of control parameters is used to control payloads, then the control system is simple to operate, but the system experiences uncontrollable oscillation when the payload has low moment of inertia or motor overload when the payload has large moment of inertia
Solution Approach 1:
The control system dynamically adjusts control parameters based on the detected moment of inertia of the payload. The system transitions from a static fixed-parameter approach to a dynamic adaptive approach where parameters are modified in real-time according to payload characteristics, resolving the contradiction between operational simplicity and system reliability
Solution Approach 2:
The system changes control parameters (such as proportional gain, derivative gain, or PID coefficients) based on the detected moment of inertia values. By categorizing payloads into different moment of inertia ranges and applying corresponding parameter sets, the system maintains stability across varying payload conditions while keeping the user interface simple
2Reliability
If the control system adapts to different payload types by selecting different control parameters, then the system reliability is improved, but the device complexity increases due to multiple parameter sets and detection mechanisms
Solution Approach 1:
The control system automatically detects payload moment of inertia and selects appropriate control parameters without requiring user input or manual configuration. The system performs self-diagnosis and self-adjustment, which increases reliability while masking the underlying complexity from the user through automated operation
Solution Approach 2:
The system pre-defines multiple sets of control parameters corresponding to different moment of inertia categories before operation begins. During operation, the system only needs to detect the payload category and select the pre-prepared parameter set, avoiding the need for complex real-time calculations and reducing overall system complexity
Data Source
AI summary
A method for controlling a carrier includes obtaining a motion characteristic of the carrier. The motion characteristic is indicative of a type of a payload being supported by the carrier. The carrier is configured to support a plurality of different types of payload including the type of the payload being supported by the carrier. The method further includes selecting a set of control parameter(s) from a plurality of different sets of control parameter(s) based on the motion characteristic. Each individual set of control parameter(s) of the plurality of different sets of control parameter(s) is suitable for controlling the carrier to support one of the plurality of different types of payload. The method also includes controlling movement of the carrier according to the selected set of control parameter(s).