Ship RPM Optimization on Fixed Routes With Weak Satellite Links
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing technologies face challenges in optimizing revolutions per minute (RPM) of a ship on a fixed route due to the large volume of weather data that is difficult to transmit and receive via satellite communication, necessitating a method to derive optimized RPM using weak satellite communication.
Innovation Solution
A method and device that receive input data including the ship's route, sensor data, and weather data, divide the route into optimization points, and calculate optimized RPMs between these points, using a processor to repeatedly calculate RPMs based on input data to ensure efficient navigation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If satellite communication is used to transmit and receive weather data, then real-time weather information can be obtained, but the large volume of data cannot be transmitted effectively due to weak satellite communication capabilities
Solution Approach 1:
The patent segments the route into multiple optimization points (departure point, transit points, and arrival point) and processes weather data and RPM calculations in discrete segments between these points, rather than attempting to process all data continuously across the entire route, making the system manageable with limited communication bandwidth
Solution Approach 2:
The system performs preliminary actions by receiving and storing weather data and route information in advance when communication is available, then uses this pre-stored data to calculate optimized RPM values at each optimization point without requiring continuous real-time data transmission during navigation
2Productivity
If route correction technology is used to optimize navigation, then fuel consumption can be reduced and safety improved, but the complexity of processing large volumes of weather data increases
Solution Approach 1:
The patent divides the navigation route into discrete optimization points and calculates optimized RPM values for each segment independently, simplifying the overall optimization problem into manageable sub-problems that can be solved with reduced computational complexity
Solution Approach 2:
The system determines local optimized RPM values at each optimization point based on specific local conditions (weather data, sensor data) rather than attempting global optimization of the entire route, allowing for localized decision-making that reduces overall system complexity
3Productivity
If optimized RPM calculation is performed for the entire route, then navigation efficiency is improved, but computing resources are consumed excessively
Solution Approach 1:
The patent segments the route into optimization points and calculates optimized RPM values only at these discrete points rather than continuously throughout the entire route, significantly reducing the computational burden while maintaining navigation efficiency
Solution Approach 2:
The system performs partial optimization by calculating optimized RPM values only at key optimization points (departure, transit, and arrival points) rather than optimizing every point along the route, achieving sufficient navigation efficiency with reduced computing resource consumption
Data Source
Figure 1
Figure 2
Figure 3
AI summary
An embodiment of the present disclosure provides a method of optimizing revolutions per minute (RPM) of a ship when the ship navigates each point of a route while the route is fixed, and a device for implementing the method.