High-voltage line laser anti-external force damage early warning system

Abstract

The invention discloses a high-voltage line laser anti-external force damage early warning system, which relates to the technical field of transmission line protection. The invention includes a laser band modulation signal transmitting part, a return type chromatographic change analysis unit, a displacement detection unit, a magnetic field monitoring module, an analysis module, a data acquisition module, a display module, an alarm unit, a laser detection module, a controller, and a storage module; magnetic field monitoring The module monitors the field strength around the high-voltage line in real time, and transmits the field strength information to the controller. The invention monitors the change of the magnetic field intensity around the high-voltage line in real time through the monitoring module of the magnetic field change. When the foreign object enters the high-voltage line and the super-safe distance is used, the high-voltage line passes through the foreign object and forms a micro-discharge to the ground, and the magnetic field produces a slight change to form a peak mutation. Form high, medium and low high potentials with three different numbers, and perform pre-alarm according to the preset parameter values, so that the external equipment entering the construction site under the high-voltage line will stop working, reduce the accidents of the transmission line caused by external forces, and ensure the safety of the power line. safe operation.

Description

technical field [0001] The invention belongs to the technical field of transmission line protection, in particular to a high-voltage line laser anti-external force damage early warning system. Background technique [0002] High-voltage lines have a wide distribution area and long transmission distances. Ultra-high vehicles such as construction cranes work under or pass under high-voltage transmission lines, which not only endangers the personal safety of workers, but also threatens the safe operation of the power grid. Moreover, the phenomenon that the high-voltage power line is damaged by other external forces is also very prominent, which seriously affects the operation safety of the power grid. [0003] Aiming at the damage of high-voltage lines by external forces, video image monitoring is currently the main method. However, due to the need for real-time observation by personnel in the background, effective monitoring cannot be guaranteed for a long time. A laser anti-ex...

AI Technical Summary

Problems solved by technology

[0002] High-voltage lines are distributed in a wide area and have long transmission distances. Ultra-high vehicles such as construction cranes work under high-voltage transmission lines or pass under high-voltage transmission lines, which not only endangers the personal safety of workers, but also threatens the safe operation of the power grid.

Moreover, the phenomenon that the high-voltage power line is damaged by other external forces is also very prominent, which seriously affects the operation safety of the power grid.

[0003] Aiming at the damage of high-voltage lines by external forces, video image monitoring is currently the main method. However, due to the need for real-time observation by personnel in the background, effective monitoring cannot be guaranteed for a long time. A laser anti-external damage early warning system for high-voltage lines is now provided. By detecting the magnetic field of high-voltage lines The linear relationship between the change value of the intensity and the distance between the foreign object and the high-voltage line is used to determine the position distance between the foreign object and the high-voltage line, and the pre-alarm is carried out according to the preset distance parameter value, so as to reduce the transmission line accident caused by external force and enhance the reliability of power supply

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