Satellite on-orbit health monitoring device

Abstract

The embodiment of the invention discloses a satellite on-orbit health monitoring device which comprises a power supply group which is connected with a satellite power supply system and can carry out the power-on and power-off control with the satellite power supply system, wherein the power supply group is also connected with a sensor group; the sensor group which is connected with various sensorsarranged on the satellite, supplies power to the sensors and controls the power-on and power-off of the sensors, receives various signals collected by the sensors and performs impedance matching, denoising and zero setting processing on the received signals; and an external interface group which is connected with the communication module of the satellite and is used for receiving a control instruction from the ground through the satellite, sending the corresponding control instruction to the sensor group and transmitting the signal received by the sensor group to the ground through the satellite based on the control instruction. The device can normally work in a severe space environment, can bear random vibration of at least 30g, can effectively work for at least three years in a space high-energy ion environment and can accurately position various stress conditions borne by the satellite structure.

Description

technical field [0001] The embodiment of this application relates to high-precision satellite on-orbit health monitoring technology, which is used to collect, store, and process the micro-vibration and thermal deformation data of the satellite in-orbit segment, and to monitor the moving parts such as the satellite solar array drive mechanism, moment gyroscope, antenna, etc. The data of heavy objects working in orbit will be monitored. Background technique [0002] During the satellite’s in-orbit operation, it is in an unpredictable and controllable cosmic environment and a relatively complex internal environment. It will be affected by the earth, the solar system and its own various stresses, resulting in the micro-vibration environment of the satellite in orbit. Satellite health monitoring devices are of great significance to ensure the reliability of satellite missions and to understand the working conditions of satellite control systems and components in space environment...

AI Technical Summary

Problems solved by technology

[0003] The inventor found that the following main problems exist in the existing technology: the satellite’s on-orbit structural health equipment collects a single sensor signal, and the number of channels is small, so it cannot detect the satellite’s vibration, structural shape and posture in an all-round way; the number of channels with various sensor signals is large Yes, the sampling accuracy is not high, and the satellite vibration and other situations cannot be accurately restored

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