UAV detection device and method based on eight-element multi-band composite array antenna

Abstract

The invention discloses an unmanned aerial vehicle detection device and method based on an eight-array element multi-band composite array antenna, and relates to the technical field of unmanned aerialvehicle detection devices. The detection device comprises an antenna array, a receiver, an embedded host and an upper computer; the antenna array comprises eight antenna array elements; the eight antenna array elements are arranged circumferentially; the distances between the antenna array elements are equal; the output ends of the eight antenna array elements are connected with the signal inputend of the receiver; the receiver is connected with the embedded host through a USB3.0 interface; and the embedded host is in bidirectional connection with the upper computer through an LAN interface.The unmanned aerial vehicle detection device has the advantages of being wide in frequency band coverage range, high in product reliability, light in weight and the like.

Description

technical field [0001] The invention relates to the technical field of unmanned aerial vehicle detection devices, in particular to an unmanned aerial vehicle detection device and method based on an eight-element multi-band composite array antenna. Background technique [0002] In recent years, with the extensive application of commercial drones, the security issues caused by black-flying drones have attracted more and more attention, and how to detect black-flying drones has also become a hot topic. Among the existing technologies and equipment, it is generally a single-band or two-band UAV detection equipment. The main detection objects of single-band or dual-band UAV detection equipment are the working frequency bands (2.4GHz and 5.8GHz) of DJI UAVs that are relatively common on the market. Detection equipment is generally divided into four parts, namely dual-band antenna, receiver, embedded main control module and turntable four parts, such as figure 1 As shown, the dua...

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Problems solved by technology

[0004] Since the existing single-band or two-band UAV detection equipment uses a single-element antenna, in order to improve the detection speed of the black-flying UAV and reduce the false alarm rate, it is necessary to increase the speed of the turntable. The biggest problem is the service life of the turntable. The most important part of the service life of the turntable is the service life of the slip ring. If the turntable takes 3 seconds to make a revolution and works 24 hours a day, the turntable needs to rotate 10 million times a year. The service life of domestic slip rings is generally about 10 million cycles, so from the design point of view, the use of slip rings needs to be replaced once a year, which brings a significant increase in after-sales maintenance costs

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