Data interaction system and design method for propellant replenishment based on fdir technology

Abstract

The invention relates to a propellant replenishing data interaction system based on an FDIR technology and a designing method thereof. The designing method comprises the steps that a, an independent replenishing computer system is designed for a replenishing aircraft achieving propellant replenishing, and an independent replenished computer system is designed for a replenished aircraft; b, after the replenishing aircraft and the replenished aircraft are in butted connection, the replenishing computer system and the replenished computer system conduct real-time interaction of communication data; c, the replenishing computer system and the replenished computer system send respectively-collected telemetry data and propellant replenishing data obtained through interaction to an FDIR system, and the FDIR system conducts fault detection on the replenishing state of the aircraft and process the fault according to the received data; and d, when the normal replenishing state of the aircraft isconfirmed and propellant replenishing meets a set limit value, the replenished computer system of the replenished aircraft indicates the replenishing computer system of the replenishing aircraft to stop the replenishing action.

Description

technical field [0001] The invention relates to the field of spacecraft propellant replenishment health management, in particular to an FDIR technology-based propellant replenishment data interaction system and a design method thereof. Background technique [0002] Propellant on-orbit replenishment technology is one of the key technologies necessary for the construction of a space station. The compressor establishes a low-pressure environment for the capsule storage tank, and uses the pressure difference to transfer the propellant carried by the cargo spacecraft to the capsule storage tank of the space station. [0003] The on-orbit propellant replenishment process of the two spacecraft, the cargo spacecraft and the space station, is complex, with many links, and requires high real-time fault handling. Timely disposal, such as the working status of the compressor, whether the replenishment is in place, whether the supplementary pipeline and the supplementary port are leakin...

AI Technical Summary

Problems solved by technology

Since the ground-to-spacecraft fault handling needs to go through the process of judgment, identification and decision-making, and there is a transmission delay in the space-ground communication link, the real-time performance of only relying on the ground flight controller to handle the fault is poor, and the real-time handling requirements are high. failures, relying only on ground flight controllers cannot meet the requirements

However, the handling of most of the faults during the on-orbit propellant refilling process requires high real-time performance, and the traditional flight control mode that only relies on ground flight controllers has been unable to effectively handle the faults in the refilling process.

[0005] The traditional flight control mode that only relies on the ground to control the spacecraft and handle faults has the following problems: ① There is a delay in the judgment and disposal of faults by ground flight controllers, and the real-time performance is poor

It takes a long time on the ground from the occurrence of the fault judgment to the completion of the disposal. For the faults that need to be dealt with immediately in the supplementary fault or the normal actions in the supplementary process, such as the leakage of the supplementary pipeline, the leakage of the supplementary port, and the disposal in place after supplementation, a single Relying on the ground for disposal cannot meet the requirements, and there is a certain delay in the space-ground link, which makes the disposal instructions unable to be executed immediately

② The flight control mode relying on the ground is highly dependent on the measurement and control station, and ground disposal instructions can only be sent out in the measurement and control area, resulting in the entire process of propulsion and supplementation taking up a lot of measurement and control resources

③ There is a problem of mutual influence between the failures of the two spacecraft during the supplementary process, that is, when one spacecraft fails, it will affect the other spacecraft correspondingly, and even cause the fault to spread. Leakage failure of the road, jamming of the supplementary storage tank, etc.

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