Satellite Task Migration for Power-Constrained Networks
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Solution Overview
Problem
Satellite networks face power limitations due to solar energy constraints, which restrict data processing and communication capabilities, necessitating methods to optimize power usage and task delegation.
Innovation Solution
Implementing a method and system for task migration within satellite networks, where a resource negotiation function determines power limitations and migrates tasks from satellites with low power capabilities to those with higher power availability, using solar energy and battery storage to ensure efficient task distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If low Earth orbit satellites are used to minimize transmission delay, then service level is improved, but coverage range is reduced and more satellites are required
Solution Approach 1:
The patent combines multiple satellite resources into a coordinated network where satellites work together to provide both low-latency and wide-coverage services. By merging the capabilities of multiple LEO satellites with HEO satellites, the system achieves both fast transmission and broad coverage without requiring an excessively large constellation of LEO satellites alone.
2Area of stationary object
If many satellites are deployed to provide full coverage, then coverage range is improved, but network cost increases
Solution Approach 1:
The patent applies local quality by assigning different functional roles to different satellites based on their orbital characteristics and power availability. LEO satellites handle low-latency communications when needed, while HEO satellites provide broad coverage and can offload processing tasks. This differentiated approach optimizes the network without requiring uniform high-capacity satellites everywhere, reducing overall network cost.
3Ease of manufacture
If solar power is used to power satellites, then energy source is simplified, but processing and communication capabilities are limited due to power constraints
Solution Approach 1:
The patent implements dynamic task migration that adapts to real-time power availability on satellites. When a satellite has sufficient solar power, it can process and communicate data locally. When power becomes limited, tasks are dynamically migrated to other satellites with available power. This dynamic adaptation allows the network to maintain high processing capabilities despite individual satellites having limited solar power.
4Use of energy by moving object
If task migration is implemented to balance power usage, then power efficiency is improved, but system complexity increases
Solution Approach 1:
The patent employs feedback mechanisms where satellites continuously monitor their own power status and communicate this information to the network. Based on this feedback, the network dynamically adjusts task allocation and migration decisions. This feedback-driven approach enables efficient power utilization without requiring complex centralized control, as each satellite autonomously reports its state and responds to migration requests.
Data Source
AI summary
A method comprising determining, by a function, that a first satellite lacks processing or communication capabilities; and routing data traffic, by the function, from the first satellite to a second satellite, the second satellite having higher processing or communication capabilities than the first satellite. The processing and communication capabilities of the first and second satellite are directly related to their power availability, which is derived from solar energy means. Another method comprising determining, by a function, that a first satellite cannot provide computing or communication resources; migrating data, by the function, from the first satellite to a second satellite that can provide the computing or communication resources; computing the data, by the computing resources of the second satellite; and transmitting computed data, by the function, from the second satellite to the first satellite.