Buoy Position Monitoring via Temperature Differential Analysis
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Solution Overview
Problem
Conventional fishing tool positioning systems using buoys lack precision and real-time capabilities, while GPS systems are expensive and prone to failure if the fishing gear is lost, and they do not provide comprehensive environmental data for effective management.
Innovation Solution
A fishing tool loss monitoring system that includes a buoy with sensors, a fishing vessel terminal device, and a land control center, utilizing a LoRa network for communication to detect and alert on buoy or fishing tool loss, providing sensing information, and managing fishing tools within a preset area, without the need for additional sensors or electronic circuits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If GPS module is used for positioning fishing tool, then positioning precision is improved, but cost increases and reliability deteriorates when fishing gear is lost
Solution Approach 1:
The system divides the positioning function into two independent components: GPS module for precise positioning and buoy for visual indication. This segmentation allows the GPS to provide accurate coordinates while the buoy provides continuous visual presence, so if one fails, the other can still indicate position.
Solution Approach 2:
The buoy acts as an intermediary between the submerged fishing gear and the surface/air. It provides a visible indicator that remains functional even when the electronic GPS system fails due to water damage, bridging the gap between underwater gear and above-water monitoring.
2Ease of manufacture
If conventional buoy is used for indicating fishing tool position, then cost is reduced, but positioning precision and real-time capability deteriorate
Solution Approach 1:
The system merges the low-cost buoy with an integrated GPS module, combining the visual indication capability of traditional buoys with the precise positioning capability of GPS technology, achieving both cost-effectiveness and high precision.
Solution Approach 2:
The buoy serves multiple functions: visual position indication for fishermen, GPS coordinate transmission for remote monitoring, and environmental sensing. This multi-functionality allows a single device to address both cost constraints and precision requirements.
3Loss of information
If buoys with various sensors are introduced to provide environmental data, then information completeness is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The buoy system automatically collects, processes, and transmits environmental data without requiring complex external control systems. The integrated microcontroller handles sensor data acquisition and transmission autonomously, reducing the need for additional electronic infrastructure.
Data Source
AI summary
According to an embodiment, a fishing tool loss monitoring system comprises at least one buoy providing sensing information and buoy identification information and buoy position information, a fishing vessel terminal device providing fishing vessel information including fishing vessel identification information, fishing vessel position information, the fishing tool identification information, and the buoy position information, and a land control center performing transmitting/receiving information to/from the fishing vessel terminal device or the buoy through a communication network to gather the sensing information including underwater temperature information and overwater temperature information from the buoy during a preset time, measuring a speed of the buoy using the buoy position information when a difference between respective averages of the underwater temperature information and the overwater temperature information falls outside a preset error range.