Optical fiber energy transmission system interlocking protection device and achieving method thereof

Abstract

The invention discloses an optical fiber energy transmission system interlocking protection device. The output end of a driving circuit is connected with the input end of a laser, the output end of the laser is connected with the input end of a first directional coupler, the first output end of the first directional coupler is connected with the input end of a second directional coupler through an optical fiber, the second output end of the first directional coupler is connected with the input end of a control circuit, the output end of the control circuit is connected with the input end of the driving circuit, the output end of the second directional coupler is connected with the input end of a photovoltaic battery, the output end of the photovoltaic battery is connected with the input end of a detecting circuit, and the output end of the detecting circuit is connected with the input end of the second directional coupler. The invention further discloses an achieving method of the interlocking protection device. A laser power source is automatically turned off when an energy transmission optical path is broken off, accidents caused by high-power laser leakage are prevented, the electricity generation network can be effectively protected, and the purposes of preventing fire and explosion and protecting personal safety and property safety are achieved.

Description

technical field [0001] The invention discloses an interlocking protection device for an optical fiber energy transmission system, and relates to the technical field of transmission equipment protection devices. Background technique [0002] Optical fiber, short for optical fiber, is a fiber made of glass or plastic that acts as a means of light transmission. The principle of transmission is 'total reflection of light'. Optical fibers are composed of two layers of glass with different refractive indices. The inner layer is an optical core with a diameter of several microns to tens of microns, and the outer layer has a diameter of 0.1-0.2 mm. Generally, the refractive index of the inner core glass is 1% larger than that of the outer glass. According to the principle of refraction and total reflection of light, when the angle at which the light hits the interface between the inner core and the outer layer is greater than the critical angle for total reflection, the light can...

AI Technical Summary

Problems solved by technology

When the system is working on energy transmission and power generation, it is inevitable to encounter problems such as fiber breakage or various internal and external factors. Once an accident occurs, if the interlock protection cannot be carried out in time, it will lead to serious consequences such as fire.

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