Fishing Reel Speed Synchronization via Dual Detector Feedback
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Solution Overview
Problem
Existing fishing devices suffer from backlash issues due to the mismatch between the spool rotation speed and the fishing line release speed, especially after the bait enters the water, leading to inefficient line retrieval and potential line twisting.
Innovation Solution
A fishing device equipped with a first detector to measure the fishing line release speed and a second detector to measure the spool rotation speed, with a control assembly that adjusts the brake assembly to synchronize the spool rotation speed with the line release speed, preventing backlash.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If centrifugal braking or electromagnetic damping is used to apply a braking force to the spool, then the spool rotation speed can be controlled, but the backlash of the reel cannot be avoided and the casting distance of the bait is affected
Solution Approach 1:
The patent employs a feedback control system where detectors continuously monitor the fishing line release speed and spool rotation speed, and the control assembly adjusts the brake assembly in real-time based on the speed difference. This closed-loop feedback mechanism ensures the spool rotation speed dynamically matches the line release speed, preventing backlash without affecting casting distance.
Solution Approach 2:
The patent changes the control parameter from fixed braking force to dynamic speed matching. By continuously adjusting the brake assembly based on real-time speed detection, the system maintains the spool rotation speed equal to the line release speed, resolving the contradiction between speed control and backlash prevention.
2Reliability
If the user presses the spool using their thumb to apply a braking force, then the spool can be braked to avoid backlash, but the method highly depends on the experience of the user and cannot be implemented by users unfamiliar with the fishing rod
Solution Approach 1:
The patent implements self-service through automatic control. The detection and control assembly automatically monitors and adjusts the spool rotation speed without requiring user intervention. The system serves itself by detecting speed mismatches and applying brakes automatically, eliminating the need for user experience-based manual operation.
Solution Approach 2:
The patent replaces the manual mechanical braking method with an automated detection and control system. Instead of relying on user thumb pressure, the system uses detectors to sense speed and a control assembly to apply brakes automatically, substituting human experience-based operation with an automated mechanical-electrical system.
3Speed
If the spool is in a high-speed free rotation state after the bait falls into water, then the spool can rotate freely, but the speed of pulling out the fishing line from the spool is smaller than the rotation speed of the spool, causing the fishing line to become loose and twisted
Solution Approach 1:
The feedback control system continuously compares the spool rotation speed with the line release speed and adjusts the brake assembly accordingly. When the spool rotates faster than the line is being pulled, the system automatically applies braking force to synchronize the speeds, preventing line twisting and loosening.
Solution Approach 2:
The system applies preliminary braking action before line twisting occurs. By continuously monitoring the speed difference and proactively adjusting the brake assembly, the system prevents the harmful effect of line twisting rather than reacting after it occurs.
Data Source
AI summary
An fishing device includes a fishing rod, a reel, a fishing line, a first detector, a second detector, and a control assembly. The reel is arranged at the fishing rod and includes a spool. The fishing line is wound around the spool and includes a plurality of detection marks arranged along an axial direction of the fishing line at intervals. The first detector is configured to detect the detection marks to obtain a line release speed of the fishing line. The second detector is configured to detect a rotation speed of the spool. The control assembly is configured to control a brake assembly to brake the spool according to the line release speed to cause the rotation speed of the spool to match the line release speed.