Reel Rotation Sensing for Accurate Wire Length Tracking
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Solution Overview
Problem
Existing material tracking systems for reels are prone to human error, costly, and lack flexibility, making them inefficient for inventory management and project planning.
Innovation Solution
A modular system with a sensor module and plate module that tracks material length on a reel by counting cumulative rotations, using a sensor to detect reel rotation, a processor to calculate remaining length, and a radio frequency transmitter to communicate data, allowing centralized information management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual tracking of material usage is used, then no additional equipment is needed, but tracking accuracy deteriorates due to human error
Solution Approach 1:
The patent replaces manual tracking with an automated sensor-based system. A sensor detects rotational position of the reel, a processor calculates material usage based on rotational data, and a transmitter communicates the information. This substitutes human manual tracking with an automated electromechanical system, eliminating human error while maintaining simplicity through modular components.
2Measurement precision
If complex roller-based measuring devices are used, then measurement capability is improved, but cost and error susceptibility increase
Solution Approach 1:
The patent replaces complex roller-based mechanical measuring devices with a rotational position sensor system. Instead of using rollers to physically measure material passage, the system uses a sensor to detect reel rotation and calculates material usage mathematically. This reduces mechanical complexity and eliminates errors associated with roller calibration and material diameter variations.
Solution Approach 2:
The patent changes the measurement parameter from direct physical measurement of material passing through rollers to indirect measurement through rotational position detection. By measuring the rotational angle of the reel and calculating material usage based on known reel geometry, the system achieves accurate measurement without complex mechanical contact devices.
3Measurement precision
If reel-to-reel audio tape monitoring systems are used, then tape speed measurement is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent extracts only the essential function of rotational measurement from complex reel-to-reel audio tape monitoring systems. Instead of implementing the entire complex system with sensors on both reels and feedback control, the invention isolates the core functionality: detecting rotational position and calculating material usage. This extracts the useful measurement capability while eliminating unnecessary complexity.
Solution Approach 2:
The patent uses a simplified approach that copies only the essential measurement principle from audio tape systems. Rather than replicating the complex integrated sensor systems, the invention creates a standalone module that attaches to the reel and performs the same fundamental measurement function using simpler, more adaptable components.
4Difficulty of detecting and measuring
If magnetic flux blocking sensors are used, then wire end detection is improved, but inventory management capability deteriorates
Solution Approach 1:
The patent performs preliminary measurement and tracking of material usage throughout the reel's lifecycle. By continuously monitoring rotational position and calculating remaining material, the system provides advance warning of material depletion and maintains complete inventory records. This preliminary tracking prevents the need for last-minute detection and enables proactive inventory management.
Solution Approach 2:
The patent implements a feedback system where the sensor continuously monitors reel rotation, the processor calculates remaining material based on rotational data, and the transmitter communicates this information externally. This closed-loop feedback provides ongoing inventory information rather than simple end-detection, enabling continuous inventory management and proactive replenishment decisions.
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
Provides accurate, efficient, and flexible material tracking, reducing human error and costs, and enabling centralized inventory management across multiple reels.
Implementation Method 1
a sensor to produce a signal indicative of rotation of the reel
Data Source
AI summary
A wire length calculation system is provided for tracking wire stored on and drawn from a reel. The wire length calculation system may include a detection element, digital logic components, location receiver, enclosure, analytic components, interface component, and sensor module. One or more sensors relative to the reel may detect a position indicative of forward or reverse reel rotation. A processor may analyze signals to count rotations of the reel, which is savable in memory. A battery may provide power. The system may also record the time and location associated with rotations. A method for tracking wire stored on and drawn from a reel using a wire length calculation system is also provided.