Automated Weightlifting Spotting With Synchronized Linear Actuators
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Solution Overview
Problem
The challenge of providing effective spotting support during weightlifting exercises, especially when a traditional spotter is unavailable, is addressed by the development of a system that utilizes support structures with linear actuators and a control module to assist in lifting weights safely.
Innovation Solution
A system comprising support structures with linear actuators and a control module that synchronizes the movement of rails within center posts, controlled by user input devices, allowing for automated spotting support without the need for a second individual.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional spotter is used to support weightlifting, then safety and support are improved, but device complexity and availability requirements worsen
Solution Approach 1:
The patent replaces the mechanical human spotter with an automated electromechanical system consisting of linear actuators, rails, and control modules. The linear actuators automatically extend and retract to provide spotting support, eliminating the need for a human spotter and reducing operational complexity while maintaining safety reliability.
Solution Approach 2:
The spotting system is designed to automatically detect when a lifter needs assistance and provide support without human intervention. The control module monitors the lifting process and activates the linear actuators to provide spotting support, making the system self-service capable and independent of available human spotters.
2Extent of automation
If automated linear actuators are used for spotting support, then availability and automation are improved, but device complexity and cost worsen
Solution Approach 1:
The spotting system is divided into multiple independent support structures, each with its own linear actuator, rail, and control module. This segmentation allows each component to be optimized independently and simplifies the overall system architecture by distributing functionality across modular units rather than requiring a single complex centralized system.
Solution Approach 2:
The linear actuators serve multiple functions: they provide spotting support, control the movement of the rail, and can be synchronized to work together as a coordinated system. This multi-functionality reduces the need for separate specialized components, thereby reducing overall system complexity while maintaining high automation capability.
3Reliability
If multiple support structures with synchronized control are implemented, then spotting effectiveness and safety are improved, but control complexity and synchronization difficulty worsen
Solution Approach 1:
The control module receives feedback from sensors monitoring the lifting process and automatically adjusts the linear actuators accordingly. This feedback mechanism enables precise synchronization of multiple support structures without requiring complex manual coordination, as the system self-regulates based on real-time conditions to maintain spotting effectiveness.
Solution Approach 2:
Multiple independent control modules are merged into a coordinated system through the central control unit, which synchronizes the operation of all linear actuators. This merging approach allows each support structure to function independently while being coordinated by the central controller, simplifying the overall control architecture compared to requiring complex interlocking mechanisms between each structure.
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
Enables safe and efficient weightlifting by providing automated spotting support, ensuring the weightlifting process is safer and more reliable, even when a traditional spotter is not present.
Implementation Method 1
a linear actuator coupled at a first end to the center post and coupled at a second end to the rail
Data Source
AI summary
A system and methods are provided for weightlifting. In various embodiments, a system includes: at least two support structures, each support structure including: a center post; a rail slidable within the center post, the rail comprising a cradle; and a linear actuator coupled at a first end to the center post and coupled at a second end to the rail; a user input device configured to generate a signal to the control module based on a user interaction; and a control module communicatively coupled to the linear actuator of each of the at least two support structures and configured to synchronize control of the linear actuators based on the signal.