Networking wireless sun sensor system based on autonomous power supply

Abstract

The invention relates to a networking wireless sun sensor system based on autonomous power supply. Three to six wireless sun sensors are installed out of a CubeSat. Each sensor comprises a light shield, a bottom shell and an interior circuit board, wherein the interior circuit board is installed in the bottom shell, two sides of the light shield and the bottom shell are provided with screw holes, and the light shield and the bottom shell are installed together via the screw holes and fixed on the surface of the CubeSat. The invention also relates to a working method of the networking wireless sun sensor system based on autonomous power supply. The wireless sun sensors capable of realizing autonomous power supply and a magnetometer will overcome the problems of complex installation of a conventional wired sun sensor and inaccurate measurement of a magnetic field; and the characteristics of autonomous power supply and wireless data transmission enable installation of the sun sensors and the magnetometer on satellite surface to be more flexible and freer.

Description

technical field [0001] The invention relates to the field of satellite technology, in particular to a networked wireless solar sensor system based on autonomous power supply. Background technique [0002] CubeSat is a new conceptual design for small satellites proposed by Professor Tom Kenny of Stanford University in 1999. The standard of CubeSat is a cube with a "1U" architecture and a size of 10×10×10cm, that is, a volume of 1000cm 3 . On this basis, the cube star can be upgraded to "2U", "3U", or even "12U" and other multi-U structures. Due to its small size, light weight, short R&D period, and low cost, CubeSat has attracted more and more attention from aerospace agencies. It has developed rapidly, and up to now, hundreds of cubesats of different sizes have been launched all over the world. The Shaanxi Provincial Cubesat Engineering Laboratory of Northwestern Polytechnical University was funded by the National 985 Platform Construction in 2011 for the development of ...

AI Technical Summary

Problems solved by technology

At present, the widely used method is to indirectly improve the attitude control accuracy through software algorithms, but this does not fundamentally solve the problem

At the same time, considering the strict requirements of cubesats on volume, mass, and power consumption, it is difficult for existing high-precision sensors to be directly applied to cubesats. Therefore, it is imperative to develop high-precision attitude determination sensors suitable for cubesats

[0004] Common satellite attitude determination sensors include magnetometers, earth sensors, sun sensors, star sensors, gyroscopes, gravity gradient rods, etc., and the application of the sun sensor is quite mature. Compared with other sensors, It has the characteristics of high precision, high reliability, and simple principle, so it is very suitable for the application of cube stars. Applications

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