Weight Exercise Sensor Module With Dual-Laser Motion Compensation
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Solution Overview
Problem
Users face difficulties in accurately identifying their exercise state and motivation during weight exercises due to incorrect measurement by sensor modules, leading to a decrease in exercise effectiveness.
Innovation Solution
A sensor module with a first laser sensor to detect the movement of weight plates and a second laser sensor to compensate for environmental changes, ensuring accurate measurement by using identical specifications and adjusting for environmental factors, combined with a user interface to display exercise states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single laser sensor is used to detect weight plate movement, then the device complexity is reduced, but measurement precision deteriorates due to environmental factors
Solution Approach 1:
The sensor module is segmented into multiple independent laser sensors (first laser sensor for movement detection, second laser sensor for reference detection) that can be processed separately. Each sensor focuses on a specific function, allowing the system to maintain simplicity while improving measurement precision through functional division.
Solution Approach 2:
Different parts of the sensor module have different qualities - the first laser sensor is optimized for detecting weight plate movement, while the second laser sensor is optimized for detecting reference object movement. This local differentiation ensures that each sensor performs its specific function with high precision, addressing the measurement accuracy requirement.
2Device complexity
If measurement is performed without compensation for environmental changes, then the device complexity is reduced, but reliability deteriorates due to incorrect measurement
Solution Approach 1:
The second laser sensor provides continuous feedback about environmental changes (temperature, humidity) by detecting movement of the reference object. This feedback is fed back to the processor, which then compensates for the environmental effects on the first laser sensor's measurements, ensuring reliable exercise state identification.
Solution Approach 2:
The second laser sensor acts as an intermediary that detects environmental factors indirectly through the reference object's movement. Instead of directly measuring environmental parameters, the system uses the reference object as a mediator to infer environmental changes and compensate for their effects on the primary measurement.
3Device complexity
If no reference measurement is provided, then the device complexity is reduced, but measurement precision deteriorates due to inability to compensate for environmental factors
Solution Approach 1:
The second laser sensor performs preliminary detection of environmental changes by continuously monitoring the reference object's position. This preliminary measurement allows the system to prepare compensation data before it affects the primary measurement, ensuring high precision distance measurement of the weight plate.
Solution Approach 2:
The reference object serves as a copy or replica that experiences the same environmental conditions as the weight plate but without the added complexity of the exercise mechanism. By measuring the reference object's movement, the system creates a simplified model of environmental effects that can be used to compensate for measurement errors in the actual weight plate measurement.
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 solution provides accurate feedback on exercise states, enhancing user motivation and exercise effectiveness by correcting measurement errors caused by environmental changes.
Implementation Method 1
a first laser sensor configured to irradiate a first laser beam toward the weight plate or a component moving together with the weight plate to detect a moving distance of the weight plate
Implementation Method 2
irradiate a first laser beam toward the weight plate or a component moving together with the weight plate to detect a moving distance
Implementation Method 3
a second laser sensor configured to irradiate a second laser beam toward a component that does not move in spite of movement of the weight plate
Implementation Method 4
irradiate a second laser beam toward a component that does not move in spite of movement of the weight plate
Data Source
AI summary
Provided is a weight exercise apparatus. The weight exercise apparatus includes an exercise main body in which movement is generated according to a user's weight exercise, a sensor module configured to detect movement of the exercise main body, and a processor configured to control a user interface (UI) unit to display a UI element indicating an exercise state of a user corresponding to the detected movement on a UI screen wherein the sensor module includes a first laser sensor configured to irradiate a first laser beam toward the weight plate or a component moving together with the weight plate to detect a moving distance of the weight plate when the weight plate moves and a second laser sensor configured to irradiate a second laser beam toward a component that does not move in spite of movement of the weight plate when the weight plate moves.