Master-slave nodes and alignment method based on wireless ultraviolet light communication system

Abstract

The invention discloses a master-slave node based on a wireless ultraviolet light communication system. The structure of the master-slave node is the same, and the bottom is driven by a motor to rotate in reverse at a differential speed. There are two sets of ultraviolet emitting LEDs, and two sets of ultraviolet receiving photomultiplier tubes are respectively installed on the other pair of sides; the bottoms of the sides where the ultraviolet emitting LEDs are located are respectively equipped with access ports, and the bottoms of the sides where the ultraviolet receiving photomultiplier tubes are located are respectively installed with output ports. port, and a high-voltage base is also installed on the inner base of the square housing. The present invention has a simple and smart structure, and is easy to make. The black acrylic board is used, so the shading performance can be guaranteed and unnecessary interference can be reduced; the angle module is removed, the design becomes simplified, and the program part becomes simpler because of the advantages of the hardware design. The setting of the quasi-judgment standard is also simplified, and the master-slave nodes can be aligned more precisely according to the conditions of the receiving end.

Description

technical field [0001] The invention belongs to the technical field of photoelectric communication equipment, relates to a master-slave node based on a wireless ultraviolet light communication system, and also relates to an alignment method of the master-slave node. Background technique [0002] Modern means of communication include radio communication, wired electrical communication, optical communication, etc. Among them, radio communication is the main means of modern communication, but its signals are easily interfered or intercepted, easily affected by natural factors, and have poor confidentiality; although the transmission performance of wired electrical communication It is stable and has high communication quality, but the communication line construction time is long, the investment is large, the maintenance is difficult, the mobility is poor, and it is easy to be damaged; while the visible light in wireless optical communication is greatly affected by natural light, ...

AI Technical Summary

Problems solved by technology

[0004] In the existing wireless ultraviolet communication system, the positions of the master and slave nodes are random. After starting up, the master and slave nodes start to rotate, and the two rotate at a differential speed. The receiving end (photomultiplier tube) of the slave node is facing the transmitting end (ultraviolet LED) of the master node at a certain moment, and then relies on the angle sensor to transmit the information of the rotation phase back, and cooperates with the receiving intensity to make fine adjustments, so that the master and slave nodes Continuously realize the conversion of direct-view communication and non-direct-view communication to complete the alignment; but relying on the angle sensor to transmit the information of the rotation phase back has the problem of low efficiency and unreliability of the alignment process

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