Satellite Mission State Simulation via Rule-Based Keyword Extraction

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Solution Overview

Problem

Current simulators for satellites are inefficient in displaying the major mission operating states of artificial satellites in three dimensions, both in real time and non-real time, and are costly to build, focusing mainly on internal operations rather than mission-specific states.

Innovation Solution

An apparatus and method for simulating satellite mission operating states, including a satellite operation procedure rule definition unit, a processing unit for extracting keywords and attributes, a mission list storage unit, an orbit data storage unit, and a control unit for visually displaying the satellite's mission state in three dimensions, allowing for efficient simulation of major mission states with reduced costs and efforts.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If a traditional satellite simulator is built to properly simulate satellite state, then simulation accuracy is improved, but construction cost increases considerably

Engineering Contradiction:

Improvesimulation accuracyVSAvoidconstruction cost

Core Design Contradiction:

Measurement precisionVSEase of manufacture

Solution Approach 1:

The patent uses data copying from actual satellite operations and ground station logs to create simulation data, replacing the need for expensive physical satellite replicas. The simulation system copies and processes existing operational data to achieve accurate satellite state representation without building costly hardware simulators

Inventive Principle:

Principle #26Copying

Solution Approach 2:

The patent employs inexpensive software-based simulation components and uses disposable virtual models instead of permanent expensive hardware simulators. The system can rapidly create and discard simulation instances, replacing the need for costly durable physical simulation infrastructure

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

2Measurement precision

If a satellite simulator is built to analyze response characteristics to commands and abnormal states, then internal operation analysis capability is improved, but efficiency for checking major mission operating state deteriorates

Engineering Contradiction:

Improveinternal operation analysis capabilityVSAvoidefficiency for checking major mission operating state

Core Design Contradiction:

Measurement precisionVSProductivity

Solution Approach 1:

The patent segments the simulation functionality into two distinct modes: detailed internal operation analysis mode for command response characteristics, and streamlined mission state checking mode for major operating states. This segmentation allows each mode to be optimized independently, improving overall productivity without sacrificing analysis capability

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent applies partial action by selectively simulating only the necessary aspects depending on the task: full internal operation simulation when detailed analysis is needed, and simplified mission state simulation when only major operating states need checking, thereby improving efficiency without losing necessary analytical capability

Inventive Principle:

Principle #16Partial or excessive action

3Measurement precision

If a traditional simulator focuses on modeling internal operation state, then response characteristic analysis is improved, but three-dimensional mission state display capability deteriorates

Engineering Contradiction:

Improveresponse characteristic analysisVSAvoidthree-dimensional mission state display capability

Core Design Contradiction:

Measurement precisionVSEase of operation

Solution Approach 1:

The patent merges two previously separate capabilities into one integrated simulation system: detailed internal operation modeling for response analysis and three-dimensional visual display for mission states. The system combines data processing for internal operations with graphical rendering capabilities, allowing both functions to coexist and enhance each other

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS12179944B2Apparatus and method for simulating satellite mission operating state

Publication Date: 2024.12.31 KOREA AEROSPACE RES INST

AI summary

The present invention relates to an apparatus and a method for simulating a satellite mission operating state. The apparatus, according to the present invention, comprises: a satellite operation procedure rule definition unit for registering a satellite operation procedure rule which defines a satellite operation procedure keyword and attribute corresponding to a satellite's state of performing a mission of interest; a satellite operation procedure processing unit for receiving a satellite operation procedure which includes a series of operation procedures prepared for the satellite to perform the mission, and extracting, from the received satellite operation procedure, a keyword and attribute value corresponding to the keyword and attribute included in the registered satellite operation procedure rule a mission list storage unit for storing a list of mission performance actions arranged in the order of execution time, wherein the mission performance actions correspond to the extracted keyword and attribute value; an orbit data storage unit for storing orbit data of the satellite; a time management unit for providing a current time; and a control unit for confirming an orbit and the mission performance action corresponding to the current time from the orbit data of the satellite and the mission list, and causing the satellite's state of performing the mission of interest to be visually displayed.