High-voltage cable electromagnetic-fingerprint distribution based unmanned-aerial-vehicle navigation system and method

Abstract

The invention relates to a high-voltage cable electromagnetic-fingerprint distribution based unmanned-aerial-vehicle navigation system which comprises an unmanned-aerial-vehicle flight subsystem (14),a data processing subsystem (16) and a ground control subsystem (15). The unmanned-aerial-vehicle flight subsystem (14) transmits high-voltage cable electromagnetic field strength data to the data processing subsystem (16), the data processing subsystem (16) has data matched in a fingerprint database to acquire unmanned-aerial-vehicle real-time position coordinates, and the ground control subsystem (15) navigates an unmanned aerial vehicle according to the real-time position coordinates, wherein the fingerprint database contains corresponding information of high-voltage cable electromagneticfield strength and the position coordinates. Compared with the prior art, the high-voltage cable electromagnetic-fingerprint distribution based unmanned-aerial-vehicle navigation system has the advantages that the unmanned aerial vehicle is positioned and navigated by the aid of the electromagnetic field strength fingerprint information around a high-voltage cable, which is complementary to a traditional satellite navigation mode, and position stability of the unmanned aerial vehicle under high-voltage inspection environment is improved.

Description

technical field [0001] The present invention relates to a drone navigation system, in particular to a drone navigation system and method based on high-voltage line electromagnetic fingerprint distribution. Background technique [0002] At present, the total length of my country's transmission lines exceeds 1.15 million kilometers, ranking first in the world in scale, but my country's power line inspection methods and technologies are still lagging behind. Traditional power inspections mainly rely on manual inspections and manual input into computers, which is inefficient. For example, when performing a 100km power line inspection task, 20 inspectors need to work continuously for one day to complete it, not including encounters. to complex terrain such as mountains and rivers. When it is necessary to climb to the high-voltage line for inspection in sudden and emergency situations, in order to ensure the personal safety of the inspectors, the line power failure inspection wil...

AI Technical Summary

Problems solved by technology

Its positioning method mainly adopts the time-ranging navigation positioning method, that is, the user receives the propagation time of the signal sent by 4 satellites that are not on the same plane (in order to ensure the uniqueness of the result, the 4 satellites cannot be on the same plane), and then completes a group including 4. The three-dimensional coordinates of the user's position and the error between the user's clock and the system time can be calculated by the mathematical operation of the model of the equation, but there will be certain errors in the satellite navigation system in the mountainous jungle.

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