Payload Mount Stabilization Using Propulsion on Unstable Platforms
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Solution Overview
Problem
Payload systems mounted on unstable platforms, such as moving vehicles, face reduced accuracy due to platform instability, and existing solutions that synchronize gimbal movements with the platform are difficult to implement when the gimbal is an independent system.
Innovation Solution
A stabilization system comprising a platform mount, a payload mount with pivot axes, sensors measuring angular orientation, and propulsion devices that adjust the payload's position independently of the platform, minimizing forces and torques transferred to the platform to maintain payload stability without affecting the platform's motion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a gimbal system is used to stabilize the payload, then the payload stability is improved, but the device complexity increases
Solution Approach 1:
The patent replaces complex mechanical gimbal stabilization systems with a propulsion-based stabilization system. Instead of using multiple mechanical gimbals with motors and sensors to physically orient the payload, the system uses propulsion devices (such as fans or jets) to generate aerodynamic forces that stabilize the payload's orientation. This substitution of mechanical stabilization with aerodynamic stabilization reduces mechanical complexity while achieving the same stability objective.
Solution Approach 2:
The patent extracts the stabilization function from the platform's motion control system and creates an independent stabilization subsystem. The payload stabilization is achieved through dedicated propulsion devices mounted on the payload carrier, separate from the platform's flight control system. This extraction allows the payload to be stabilized independently of platform movements, reducing the complexity of integrated control systems.
2Stability of the object's composition
If propulsion devices are added to the gimbal system, then the payload stabilization capability is improved, but the weight of the moving object increases
Solution Approach 1:
The patent replaces heavy mechanical gimbal components with lighter propulsion devices. Instead of using motorized gimbals with counterweights, bearings, and actuation mechanisms, the system uses aerodynamic propulsion devices to generate stabilizing forces. This substitution significantly reduces the weight of the stabilization system while maintaining or improving stabilization capability.
Solution Approach 2:
The patent changes the fundamental parameter of stabilization from mechanical force (motors and counterweights) to aerodynamic force (propulsion devices). By utilizing air pressure and flow dynamics, the system achieves stabilization with much lighter components. The propulsion devices can be adjusted in real-time to maintain stability, providing a lightweight alternative to traditional mechanical systems.
3Ease of operation
If the gimbal is made independent from the platform, then the ease of operation is improved, but the device complexity increases
Solution Approach 1:
The patent extracts the stabilization function into a separate, independent payload carrier system with its own propulsion devices and control mechanisms. This independent system can be attached to or removed from the platform without affecting the platform's operation. The payload carrier has its own stabilization control loop that operates independently from the platform's flight control, simplifying operation while managing complexity through modular design.
Solution Approach 2:
The patent segments the stabilization function into a separate modular payload carrier that can operate independently from the platform. The payload carrier includes its own propulsion devices, sensors, and control system, creating a self-contained stabilization unit. This segmentation allows the payload system to be easily operated and configured independently, while the modular architecture manages overall system complexity.
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 effectively stabilizes payloads by independently adjusting their angular position, minimizing forces and torques applied to the platform, ensuring accurate operation even on unstable platforms like drones or vehicles, without interfering with the platform's stabilization.
Implementation Method 1
at least one propulsion device connected to the payload mount, and angled to change an angular position of the payload mount along the at least one pivot axis
Data Source
AI summary
A system for stabilizing a payload, comprising: a platform mount having a first end adapted to be physically connected to a supporting platform and a second end; a payload mount adapted to be physically connected to a payload, and is physically and rotatably connected via at least one pivot axis to the second end of the platform mount; at least one sensor adapted for measuring angular orientation of the payload along the at least one pivot axis; at least one propulsion device connected to the payload mount, and angled to change an angular position of the payload mount along the at least one pivot axis; and a stabilizing controller adapted for receiving outputs of the at least one sensor, calculating instructions for the at least one propulsion device, and forwarding the instructions to the at least one propulsion device.