Distributed micro-satellite micro-vibration signal acquisition system and application method thereof
A signal acquisition system and micro-satellite technology, which is applied in relay system monitoring, general control system, control/regulation system, etc., can solve the problems of difficulty in meeting the requirements of weight reduction, consumption reduction and acquisition accuracy of micro-satellites, and reduce the design difficulty. , The effect of low expansion cost and good system scalability
Active Publication Date: 2022-07-01
NAT UNIV OF DEFENSE TECH
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[0004] The technical problem to be solved by the present invention is to provide a distributed micro-satellite micro-vibration signal acquisition system and its application method in view of the fact that the existing micro-vibration signal acquisition system is difficult to meet the requirements of micro-satellites for weight reduction, consumption reduction and acquisition accuracy. Solve the high-precision measurement and reliable downloading of micro-vibration signals under the operation of micro-satellites in orbit, and provide additional temperature measurement functions required by satellite thermal control subsystems
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[0038] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0039] like figure 1 As shown, the distributed micro-satellite micro-vibration signal acquisition system in this embodiment includes a distributed digital micro-vibration acquisition array 1, a power control distribution unit 2, an onboard computer 3, and a data transmission subsystem 4. The distributed digital micro-vibration acquisition array 1 includes a plurality of micro-vibration acquisition modules installed on different vibrat...
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The invention discloses a distributed micro-satellite micro-vibration signal acquisition system and an application method thereof. The system includes a distributed digital micro-vibration acquisition array, a power control and distribution unit, an on-board computer and a data transmission subsystem. The array includes a plurality of micro-vibration acquisition modules installed on different vibration transmission paths of the satellite. The power supply end of the micro-vibration acquisition module is connected to the output end of the power control and distribution unit, the output end is connected to the onboard computer, and the input end of the power control and distribution unit is connected. It is connected with the primary power supply on the satellite, and the onboard computer is respectively connected with the control terminal of the power control distribution unit and the data transmission subsystem through the bus. Aiming at the problem that the existing micro-vibration signal acquisition system is difficult to meet the requirements of micro-satellites for weight reduction, consumption reduction and acquisition accuracy, the invention can solve the problem of high-precision measurement and reliable download of micro-vibration signals under the in-orbit operation of the micro-satellite, and additionally provides The temperature measurement function required by the satellite thermal control subsystem.
Description
technical field [0001] The invention belongs to the technology of spacecraft signal acquisition and transmission, in particular to a distributed micro-satellite micro-vibration signal acquisition system and an application method thereof. Background technique [0002] High-precision earth observation spacecraft can obtain high-quality remote sensing images, which is of great strategic significance for occupying the strategic commanding heights of space and maintaining national space security. The imaging quality of satellites such as "Gaofen-2" and "Jilin-1" launched by my country has reached sub-meter resolution, but there is still a big gap with the international top level. Among them, a very important factor is that the spacecraft structural platform is disturbed by micro-vibration, and its attitude stability and pointing accuracy are seriously affected, thereby reducing the working performance of the spaceborne sensitive load (such as imaging quality, etc.). Current stud...
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IPC IPC(8): H04B17/40G01H17/00G05B19/042
CPCH04B17/40G01H17/00G05B19/042
Inventor 吴军李东旭吴国福罗青袁福王杰涂开武
Owner NAT UNIV OF DEFENSE TECH