Space Information Recorder for Congested Orbit Intrusion Forecasting

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Solution Overview

Problem

The increasing number of satellites and space debris in mega-constellations poses challenges for accurate collision prediction and management, overwhelming existing systems like the Combined Space Operations Center (CSpOC) in the United States, and there is a need for improved space situation awareness (SSA) to prevent collisions in congested satellite areas.

Innovation Solution

A space information recorder acquires and records space object information, including orbit forecast data, to predict intrusions into satellite constellations, providing alerts for collision avoidance and enabling integrated management of satellite and debris orbits.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If the CSpOC continues to monitor space objects and issue alerts using existing methods, then the current alert issuance service can be maintained, but it becomes difficult to accurately foresee intrusions into congested satellite constellation areas due to the rapid increase in space objects

Engineering Contradiction:
Improveaccuracy of intrusion forecastingVSAvoidcomplexity of space object monitoring system
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent segments the monitoring system into specialized components: a space information recorder that collects orbit forecast information from multiple management business devices, an intrusion determination unit that analyzes this data against predefined congestion criteria, and an alert issuance unit that generates notifications. This segmentation allows each component to focus on specific tasks, improving intrusion detection accuracy while managing system complexity through modular architecture.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces an intermediary intrusion determination unit that acts as a mediator between the space information recorder and the alert issuance unit. This intermediary processes orbit forecast information from multiple sources, determines intrusions into congested areas using predefined criteria, and prepares standardized alert information. The intermediary manages data flow and processing logic, improving system coordination and intrusion detection capability.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If more space objects are monitored to improve space situation awareness, then collision prediction accuracy improves, but the existing alert issuance service becomes overwhelmed and difficult to sustain

Engineering Contradiction:
Improvereliability of collision avoidanceVSAvoidefficiency of alert issuance service
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent implements preliminary action by pre-defining congestion area criteria (specific orbital altitude ranges and local sun time periods) before monitoring begins. The space information recorder continuously collects orbit forecast information, and the intrusion determination unit compares this data against pre-established criteria to identify intrusions. This approach enables proactive detection and alert issuance, improving collision avoidance reliability while maintaining service efficiency through automated rule-based processing.

Inventive Principle:
Principle #10Preliminary action

3Loss of information

If comprehensive orbit forecast information is collected from multiple management business devices, then space situation awareness improves, but the system complexity and data processing requirements increase

Engineering Contradiction:
Improvecompleteness of space object informationVSAvoidcomplexity of information management system
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The patent implements universality through the space information recorder that collects orbit forecast information from multiple different management business devices (mega-constellation business device, LEO constellation business device, satellite business device, orbital transfer business device, debris removal business device, rocket launch business device, and SSA business device). The recorder is designed to handle diverse information sources using a unified data structure including forecast epoch, forecast orbital elements, and forecast error, enabling comprehensive information collection while managing complexity through standardized processing.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS12351345B2Space information recorder, collision avoidance assistance system, SSA business device, and open architecture data repository
Publication Date: 2025.07.08 MITSUBISHI ELECTRIC CORP
  • US12351345B2 patent drawing
  • US12351345B2 patent drawing
  • US12351345B2 patent drawing

AI summary

A space information recorder (100) acquires space object information (500), which is orbit forecast information of a plurality of space objects (60), from a management business device (40) used by a management business operator that manages the plurality of space objects (60), and records the space object information (500). The space object information (500) includes a forecast epoch, a forecast orbital element, and a forecast error of each of the plurality of space objects (60). When it is foreseen that a space object A included in the plurality of space objects (60) will intrude into a range at orbital altitudes of 300 km to 1000 km in which a satellite group of LST 10:00 to 11:00 is present, a time period from intrusion to exit and orbit forecast information are recorded.