Micro-miniature unmanned plane navigation unit

Abstract

The invention provides a micro-miniature unmanned plane navigation unit, comprising a GNSS (Global Navigation Satellite System) navigation module, an IMU (Inertial Measurement Unit) navigation module, a geomagnetism navigation module, a posture fusion and navigation control module and a shell; the posture fusion and navigation control module is used for receiving a plurality of data and performing data verification to judge whether the GNSS navigation module, the IMU navigation module and the geomagnetism navigation module are normal; if so, the posture fusion and navigation control module calculates a first pitching angle, a first course angle, a second pitching angle, a first roll angle, a second course angle and a second roll angle of an unmanned plane, performs posture fusion in a preset fusion algorithm, generates the position data of the unmanned plane and judges whether the position data of the unmanned plane is within the preset safety scope; and if not, the unmanned plane is controlled to adjust the in-flight status to be within the preset safety scope. With adoption of a low-cost sensor, the production cost of the whole unit can be reduced and the cross-platform navigation method is realized; and the micro-miniature unmanned plane navigation unit is applicable to the unmanned planes on different platforms.

Description

technical field [0001] The invention relates to the technical field of unmanned aerial vehicles, in particular to a navigation device for micro and small unmanned aerial vehicles. Background technique [0002] UAVs have many advantages such as low cost, low loss, zero casualties, reusability and high maneuverability, and their application scope has been expanded to the three fields of military, civilian and scientific research. In 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; Research, sampling and monitoring of nuclear, biological and chemical pollution areas, test verification of new technologies, new equipment and new aircraft, etc. [0003] The current UAV navigation methods include the following: landmark navigation method, dead reckoning navigation metho...

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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