Rotating Dumbbell Weight Detection via Optical Reflection
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Solution Overview
Problem
Current weight detection systems for dumbbells are often unreliable in accurately measuring the weight loaded during exercises, disrupting the flow of workouts and requiring users to manually adjust weights, which is time-consuming and inconvenient.
Innovation Solution
A system featuring a dumbbell with a rotating handle and reflective portions, equipped with sensors that emit and detect electromagnetic waves to identify the selected weights, coupled with a logic control unit and communication module to accurately determine and transmit weight values to remote devices, allowing for precise and efficient weight adjustment monitoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If current weight detection devices are used, then weight measurement is provided, but the detection reliability is poor and accuracy is compromised
Solution Approach 1:
The patent replaces mechanical weight detection mechanisms with an optical detection system. A reflective portion is attached to the dumbbell handle, and an optical sensor detects its position through electromagnetic waves. This substitution eliminates the unreliability of mechanical sensors while achieving accurate weight measurement through optical positioning detection.
Solution Approach 2:
The patent introduces a reflective portion as an intermediary element between the dumbbell and the detection system. This reflective portion serves as a mediator that carries positional information from the dumbbell to the optical sensor, enabling indirect but reliable weight detection through its position changes during weight selection.
2Ease of operation
If manual weight loading and unloading is performed, then weight adjustment is possible, but the exercise flow is interrupted for prolonged periods
Solution Approach 1:
The patent implements preliminary action by pre-arranging multiple weights in a compact vertical stacking configuration. Users can quickly select different weights by simply rotating the handle, which automatically engages the corresponding pre-positioned weight. This eliminates the need for manual loading and unloading operations during exercise, reducing time loss while maintaining ease of weight adjustment.
3Productivity
If compact weight loading systems are used, then loading and unloading time is reduced, but the system complexity increases with multiple weights and actuation devices
Solution Approach 1:
The patent merges multiple weights into a compact vertical stacking arrangement around the dumbbell handle. Instead of separate loading mechanisms for each weight, all weights are integrated into a single compact structure that rotates with the handle. This merging reduces device complexity while maintaining high productivity for weight changes.
Solution Approach 2:
The dumbbell handle serves multiple functions: it is both the gripping element for exercise and the actuation mechanism for weight selection. By making the handle universal, the patent eliminates the need for separate actuation devices, reducing overall system complexity while maintaining fast weight change capability through simple rotational movement.
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 a reliable and efficient method for monitoring weight adjustments, ensuring accurate weight detection and reducing the time spent on loading and unloading weights, enhancing the user experience by integrating data processing and communication for seamless exercise performance.
Implementation Method 1
said at least one sensor is able to emit electromagnetic waves and receive electromagnetic waves reflected from at least one portion of said plurality of reflective portions
Data Source
AI summary
The present invention relates to a system (S) for monitoring the weight adjustment of a dumbbell, which can be used by a user to perform a gymnastic exercise, comprising: a dumbbell (2), provided with a handle (21), having an axial development along an axis (R), able to rotate around said axis (R), clockwise and counterclockwise, and provided with a first end (211) and a second end (212), a first plurality of weights (P1), wherein each weight can be individually coupled to said first end (211), when said handle (21) rotates in one direction, and decoupled from said first end (211), when said handle (21) rotates in the opposite direction, a second plurality of weights (P2), wherein each weight can be individually coupled to said second end (212), when said handle (21) rotates in one direction, and decoupled from said second end (212), when said handle (21) rotates in the opposite direction, wherein said system (S) is characterised in that it comprises an element provided with a plurality of reflective portions (321a, b, . . . , n), in that it comprises at least one detection device (5) able to detect data coming from at least one reflective portion (321k) and able to send said data, and in that it comprises a logic control unit (U) able to receive said data sent by said at least one detection device (5) and to associate to said data a weight of said first (P1) and second (P2) plurality of weights. The present invention also relates to the method for operating such system.