A miniature unmanned aerial vehicle navigation device

Abstract

The present invention proposes a miniature unmanned aerial vehicle navigation device, including: GNSS navigation module, IMU navigation module, geomagnetic navigation module, attitude fusion and navigation control module and shell, attitude fusion and navigation control module is used to receive multiple data, And carry out data verification to judge whether the GNSS navigation module, IMU navigation module and geomagnetic navigation module are normal, if normal, calculate the first pitch angle and the first heading angle, the second pitch angle and the first roll angle of the UAV, For the second heading angle and the second roll angle, use the preset fusion algorithm to perform attitude fusion, generate the position data of the drone, and judge whether the position data of the drone is within the preset safe range, and if not, control the drone The aircraft adjusts the flight status until it is within the preset safety range. The invention adopts low-cost sensors, can reduce the production cost of the whole device, realizes a cross-platform navigation method, and is applicable to unmanned aerial vehicles of different platforms.

Description

technical field [0001] The invention relates to the technical field of unmanned aerial vehicles, in particular to a miniature unmanned aerial vehicle navigation device. Background technique [0002] UAVs have unique advantages such as low cost, low loss, zero casualties, reusability and high maneuverability, and their use has been expanded to three major fields: military, civilian and scientific research. In the military, it can be used for reconnaissance, surveillance, attack, target simulation, early warning, etc.; in civilian use, it can be used for geodesy, meteorological observation, urban environment detection, earth resource exploration and forest fire prevention, etc.; in scientific research, it can be used for atmospheric Research, sampling and monitoring of nuclear, biological and chemical contaminated areas, test verification of new technologies, new equipment and new aircraft, etc. [0003] Current UAV navigation methods include the following: landmark navigatio...

AI Technical Summary

Problems solved by technology

[0004] 1. The existing device has a large volume, which is not suitable for the use of micro drones, especially micro drones;

[0005] 2. The sensors used in the existing devices are relatively expensive, which is not suitable for the use of micro drones, especially micro drones;

[0006] 3. The calculation method of the existing integrated navigation algorithm is complex and the calculation period is long

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