GPS deception detection method for electric patrol unmanned aerial vehicle

A technology of deception detection and power inspection, applied in radio wave measurement systems, measurement devices, satellite radio beacon positioning systems, etc., can solve problems such as positioning or timing errors, and achieve fast detection speed, low power consumption, and low cost Effect

Active Publication Date: 2017-11-07
STATE GRID CORP OF CHINA +4
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AI Technical Summary

Problems solved by technology

[0004] At present, GPS receivers use GPS signals for positioning. If GPS receivers receive fake GPS signals, it will cause errors in positioning or timing, which may cause serious consequences.

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  • GPS deception detection method for electric patrol unmanned aerial vehicle

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with the accompanying drawings.

[0027] A GPS spoofing detection method for a power inspection drone, which aims to solve the detection of GPS spoofing signals by the power inspection drone in the process of line inspection, including the following steps:

[0028] Step 1, the GPS module of the drone obtains the signal strength of the currently observed GPS satellites;

[0029] Step 2, according to the principle of GPS positioning, calculate the distance between each GPS satellite and the drone;

[0030] Step 3, according to the ephemeris data, calculate the current observation angle of each GPS satellite relative to the ground plane where the drone is located;

[0031] Step 4, if the value of the observation angle is less than 0, there is a GPS attack in the preset area, and a GPS alarm is issued; otherwise, according to the cut-off elevation angle (Elevation mask angle), the satellite signals that a...

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Abstract

The present invention discloses a GPS deception detection method for an electric patrol unmanned aerial vehicle. The method comprises a step 1, a GPS module of the unmanned aerial vehicle obtains the signal intensity of a currently observed GPS satellite; a step 2, a distance between each GPS satellite and the unmanned aerial vehicle is calculated; a step 3, the observation angle of the present each GPS satellite relative to the horizontal plane wherein the unmanned aerial vehicle is located is calculated; a step 4, if the observation angle value is less than 0, there is a GPS attack in a preset area, and a GPS alarm is emitted, otherwise, according to the elevation mask angle, satellite signals that are not easily blocked are selected; a step 5, the maximum signal strength of the GPS signal is calculated according to the distance and position relation between each GPS satellite and the unmanned aerial vehicle; and a step 6, when the signal strength of the current GPS satellite is detected to exceed the maximum signal strength of the GPS satellite, a GPS attack exists in the preset area. The method can quickly detect GPS deception with low power consumption and low cost.

Description

technical field [0001] The invention relates to a GPS spoofing detection method of an electric power inspection drone, which belongs to the technical field of electronic communication. Background technique [0002] A satellite navigation system is a satellite system that autonomously uses space positioning with global coverage, allowing a small electronic receiver to determine its location (longitude, latitude and altitude), and the time signal transmitted along the line of sight via satellite broadcasting is accurate to 10 within the range of meters. The current satellite navigation systems that can provide positioning and timing services around the world are mainly: the Global Positioning System (GPS) of the United States and the Global Navigation Satellite System (GLONASS) of Russia. China's Beidou Satellite Navigation System (BDS) can now provide high-precision positioning, navigation and timing functions in the Asia-Pacific region. [0003] When the power inspection d...

Claims

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Application Information

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IPC IPC(8): G01S19/21
CPCG01S19/215
Inventor罗旺崔漾冯敏夏源樊强彭启伟张天兵赵高峰郝小龙余磊焦群马涛屠正伟徐长福王万国杜晓何道敬
OwnerSTATE GRID CORP OF CHINA