Indoor positioning navigation system for unmanned aerial vehicle

Abstract

The invention discloses an indoor positioning and navigation system for an unmanned aerial vehicle. The indoor positioning and navigation system comprises a ground control module and an unmanned aerial vehicle positioning and navigation module, wherein the unmanned aerial vehicle positioning and navigation module comprises an unmanned aerial vehicle, four ultra-wideband positioning base stations which are respectively arranged at four indoor places, and a microprocessor, a flight control module, an unmanned aerial vehicle transmission module, an ultra-wideband positioning label, an inertial measurement unit and an intelligent vision module which are carried on the unmanned aerial vehicle; and the unmanned aerial vehicle transmission module is in signal connection with the microprocessor, is in communication connection with the ground control module based on a communication network and is used for realizing data transmission and data interaction between the unmanned aerial vehicle positioning navigation module and the ground control module. According to the indoor positioning and navigation system for the unmanned aerial vehicle, the ultra-wideband positioning technology and the inertial measurement unit are fused, accurate positioning of the unmanned aerial vehicle can be achieved even under the indoor shielding condition, and the indoor positioning accuracy and navigation safety of the unmanned aerial vehicle are effectively improved.

Description

technical field [0001] The invention relates to an indoor positioning and navigation system for unmanned aerial vehicles, in particular to an indoor positioning and navigation system for unmanned aerial vehicles based on the fusion of ultra-wideband positioning technology and inertial measurement units, and belongs to the technical field of positioning and navigation. Background technique [0002] With the rapid development of drone technology, drones are widely used in civil, police, urban management, agriculture, geology, meteorology, electricity, disaster relief, video shooting and other fields. At the same time, the application of drones is becoming more and more intelligent. At present, outdoors, with the assistance of global positioning and navigation systems, drones can achieve better positioning results. However, in the indoor environment where there is no GPS signal due to the occlusion of buildings, the UAV cannot know its own position, so it cannot perform positio...

AI Technical Summary

Problems solved by technology

Although the positioning accuracy based on ultra-wideband technology is very high, due to the fact that ultra-wideband technology has certain errors in distance measurement, and in the case of indoor occlusion, the ultra-wideband signal will be interfered, it is difficult to ensure that the positioning tag can be received at any time Positioning the base station signal will cause a large deviation in the indoor positioning and navigation of the UAV

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