Independent De-Orbiting Device for Space Objects
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Solution Overview
Problem
Current methods for de-orbiting or re-orbiting space objects are not flexible enough and can be costly, as they often require functional on-board systems and do not allow for reliable operation in case of malfunctions or when energy sources are depleted.
Innovation Solution
A modular device is coupled to a space object before launch, featuring standardized interfaces for independent operation, using the space object's power when available, and attaching to orbit-changing means like propulsion systems or drag sails for controlled de-orbiting or re-orbiting, ensuring flexibility and reliability even in case of malfunctions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a space object uses its own on-board propulsion system for de-orbiting or re-orbiting, then the operation can be performed autonomously, but the cost increases and reliability decreases when systems malfunction or energy is depleted
Solution Approach 1:
The device segments the de-orbiting function from the space object itself by providing a separate, independent control unit with its own power supply and control means. This modular approach allows the space object to be divided into the primary mission system and the independent de-orbiting system, ensuring that de-orbiting capability remains even if the space object's systems fail.
Solution Approach 2:
The device introduces an intermediary control unit that mediates between the space object and the de-orbiting operation. This intermediary has its own power supply and control means, acting as a bridge that can initiate and control de-orbiting independently when the space object's own systems are unavailable or depleted.
2Reliability
If a dedicated de-orbiting device is integrated with each space object, then reliable operation is ensured, but the cost and complexity increase significantly
Solution Approach 1:
The device is designed as a universal, multi-functional unit that can be attached to different types of space objects. The standardized interfaces and modular design allow a single device type to serve multiple purposes and multiple space objects, reducing manufacturing costs through economies of scale while maintaining reliability.
Solution Approach 2:
The device is designed to be self-sufficient with its own power supply and control means, requiring minimal resources from the space object. This self-service capability reduces the burden on the space object's systems and lowers overall system complexity and cost, while ensuring the de-orbiting function can operate independently.
3Device complexity
If the device uses the space object's power supply, then the device's power system is simplified, but the space object's energy resources are depleted
Solution Approach 1:
The device is designed to be self-sufficient with its own power supply, breaking the dependency on the space object's energy resources. This self-service approach ensures that the device can operate independently without depleting the space object's limited energy supplies, while maintaining a simplified overall architecture through standardized power interfaces.
Data Source
AI summary
A device (10) to be coupled to a space object on ground before launching the space object from earth to space is adapted to control change of an orbit of the space object in space or removal of the space object from space. The device (10) is independent with respect to said space object and comprises on-board control means (18), an on-board power sub-system (20), and a casing (12) for housing the onboard control means (18) and the on-board power sub-system (20), wherein the casing (12) is provided with a first interface (14) for attachment to the space object and at least one second interface (16) for attachment to means for changing an orbit.