Visible light communication data transmission system applied to space life science experiment

Abstract

The invention provides a visible light communication data transmission system applied to a space life science experiment, which comprises a stator plate and a rotor plate, the stator plate is arranged on a load electric cabinet, the rotor plate is arranged on a centrifugal machine, the stator plate and the rotor plate are both provided with communication units, and when a rotor of the centrifugal machine rotates, the communication units are connected with the stator plate and the rotor plate. A bidirectional communication link is established between the rotor plate and the stator plate. According to the visible light communication data transmission system applied to the space life science experiment, the circuit board is installed at the center of the centrifugal machine, the same circuit board is oppositely installed on the load box body, two-way communication is achieved, scientific data generated in a gravity control experiment unit can be downloaded, and the data transmission efficiency is improved. The current situation that complex control experiments are difficult to carry out simultaneously in gravity control experiments and microgravity experiments of space science instruments can be changed, on-orbit replacement of experiment units is supported, and advancement of the space science instruments in China can be guaranteed. A plurality of complex control experiments can be carried out at the same time, and microgravity scientific experiment resources are saved.

Description

technical field [0001] The invention relates to the field of space life science, in particular to a visible light communication data transmission system applied to space life science experiments. Background technique [0002] The descriptions in this section merely provide background information related to the present disclosure and do not constitute prior art. [0003] Low-Earth orbit has the characteristics of microgravity, strong radiation, high vacuum and ultra-cleanness. A number of space life science experiments are carried out on aircraft in low-Earth orbit, such as the study of microgravity and other factors on the preparation of biological products of special significance. Biotechnology scientific experiments , to study the space-controlled life ecological guarantee experiment of energy / matter circulation during long-term in-orbit operation, to study the aerospace medicine of various physiological and psychological state changes of human beings under space condition...

AI Technical Summary

Problems solved by technology

[0007] In the project implementation stage, the centrifuge usually needs a high-speed motor and a conductive slip ring. The high-speed motor realizes the high-speed rotation of the centrifuge turntable. The conductive slip ring can supply power to the experimental unit on the turntable, but the conductive slip ring will occur after long-term operation. Wear and tear, difficult to achieve wired communication

Therefore, the scientific data generated in the gravity control experimental unit is difficult to transmit to the load electric control box through the conductive slip ring

Aerospace products have special requirements on the EMC of products, so traditional wireless communication methods such as Bluetooth or Wi-Fi cannot be installed in space science instruments

In previous experiments, the scientific data generated in the gravity control experimental unit could not be preserved, and the scientific analysis could only be carried out after the astronauts recovered the samples and returned to the ground. A large amount of valuable scientific data on orbit could not be preserved.

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