Space debris batch clean system based on low-orbit satellite

Abstract

The invention discloses a space debris batch clean system based on a low-orbit satellite. The space debris batch clean system based on the low-orbit satellite comprises the low-orbit satellite and a debris clean mechanism, wherein the debris clean mechanism comprises a main control system, a release device, a tracking and aiming device and a plurality of capture devices in different types, the debris clean mechanism is installed on a carrying platform of the low-orbit satellite, the low-orbit satellite carries the debris clean mechanism and enters an orbit, and the capture devices are push shot by the release device into transfer orbits of different space debris; each capture device comprises a net capture assembly, an orbit descending assembly and capture control system capable of controlling the operation of the net capture assembly and the orbit descending assembly, position parameters of target debris is acquired by the tracking and aiming device and is transported to the main control system, and the main control system calculates the position parameters according to a preset progress and output a control instruction to the release device and a capture control system. The pacedebris batch clean system and the capture devices of clean method are small in volume, light in mass, highly modularized and standardized, and low in cost, and can be released in a batch mode, and thecapture efficiency is high.

Description

technical field [0001] The invention relates to a system for removing space debris in batches based on low-orbit satellites, and relates to the technical field of space debris removal. Background technique [0002] The United Nations Committee on the Peaceful Uses of Outer Space clearly defines space debris as: "Space debris refers to all man-made objects and objects that have failed and have no reason to expect them to continue to retain or resume their original functions in Earth orbit or re-entering the dense atmosphere. its fragments and components, regardless of whether the owners of these objects can be identified.” As of May 13, 2018, the total number of space objects in orbit cataloged by the U.S. Space Monitoring Network has reached 19,124, of which 4,787 payloads (still In normal work (about 1994), there are a total of 14,331 rocket bodies and space debris, reaching 3 / 4 of the total. Most of the rocket bodies and space debris are distributed in the low-orbit regio...

AI Technical Summary

Problems solved by technology

The manipulator capture technology is highly mature and highly manoeuvrable. However, this capture method has the following disadvantages: 1. The manipulator needs to perform multiple maneuvers when performing a large number of low-value target capture tasks, which consumes a lot of fuel and costs a lot. High; 2. Robotic arm capture is usually suitable for cooperative targets with a docking capture interface, and it is difficult to capture spinning or tumbling targets, and the versatility is limited

This capture method has the following disadvantages: 1. The number of maneuvers required to complete a debris capture task is large, the fuel consumption is large, and the cost is high; 2. It is difficult to ensure the effective deployment of the rope net and maintain its spatial configuration through the mass block ejection traction method; 3. It takes a lot of energy to realize the deorbiting of the complex; laser removal refers to the use of laser beams to irradiate the surface of the debris, so that the material in the irradiation area generates a jet of hot matter and ejects it outward, thereby generating a reverse force and changing the orbit of the debris

The application limitations of laser removal are: 1. The energy consumption of lasers is high, and the energy loss of ground-based lasers is large when propagating in the atmosphere, and the energy source and storage of space-based lasers are difficult to solve; 2. Laser removal of space debris requires extremely high-precision alignment Ability, the relevant technical problems have not yet been broken through

[0006] To sum up, due to the large number of space debris and the gradual acceleration of the growth rate, most of the current space debris removal methods have disadvantages such as high cost, low efficiency, and limited versatility, and it is difficult to effectively remove multiple space debris in a single space mission. to clear

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