A decision-making method for handling leakage faults in the sealed cabin of a manned spacecraft assembly

CN119705876BActive Publication Date: 2026-05-26BEIJING INST OF SPACECRAFT SYST ENG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING INST OF SPACECRAFT SYST ENG
Filing Date
2024-12-04
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing technologies cannot quickly pinpoint the location of leaks in the sealed cabin of a manned spacecraft assembly, cannot quickly establish space-ground collaborative support for fault handling, and cannot fully utilize on-orbit resources for fault handling while ensuring the safety of on-orbit personnel.

Method used

Using measurement data from acoustic, vibration, pressure, and temperature sensors, combined with spacecraft platform and ground support systems, the system can monitor the location and severity of leaks in real time, optimize gas supply strategies, guide on-orbit personnel in plugging operations, and determine the timing of emergency evacuation based on the progress of on-orbit operations and the health status of personnel.

Benefits of technology

It enables rapid location of leaks and punctures, improves the efficiency and safety of on-orbit fault handling, enhances on-orbit operation support time, and improves fault recovery capabilities and the accuracy of emergency evacuation decisions.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention relates to a decision-making method for handling leaks in the sealed cabin of a manned spacecraft assembly. Upon detecting a leak in the sealed cabin, the spacecraft platform transmits the measured values ​​of the total pressure and pressure drop rate of the sealed cabin to the ground flight control support system via telemetry. Based on the current measured values ​​of the total pressure and pressure drop rate of the sealed cabin, and the health status of the on-orbit personnel, a decision is made regarding whether protective equipment is required. The location and quadrant of the leak are determined, and the on-orbit personnel are guided to locate the leak and repair it. The on-orbit gas supply strategy is optimized to obtain the optimal cabin pressure control point and its corresponding longest operational support time. The cabin pressure control point is introduced as the desired cabin pressure into the closed-loop control for cabin pressure maintenance, and gas supply control is performed to maintain cabin pressure. If leak plugging fails, an evacuation decision is made; if leak plugging has been completed, a decision is made to restore the pressure of the sealed cabin.
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