Wireless image transmission communication system for unmanned aerial vehicle and wireless image transmission communication method

Abstract

The invention relates to a wireless image transmission communication system for an unmanned aerial vehicle and a wireless image transmission communication method. The wireless image transmission communication system comprises a digital camera, a control module and a power module, and is characterized in that the wireless image transmission communication system further comprises a wireless communication module for real-time data transmission with a ground monitoring center, the wireless communication module comprises a reconfigurable high-speed digital modulation unit and a digital transmission transmitter, the reconfigurable high-speed digital modulation unit is used for selecting a digital modulation mode to digitally modulate serial data stream according to the modulation mode of a remote control command of the ground monitoring center, the digital transmission transmitter is used for transmitting data by the aid of microwaves, and the reconfigurable high-speed digital modulation unit comprises a series-to-parallel portion, a sampling control portion and a carrier wave multiplication portion. By adding the reconfigurable multi-mode modulator, modulation modes can be changed in an online manner according to the quality of a signal channel environment, and high-resolution image data can be transmitted in real time even in a severe transmission environment.

Description

technical field [0001] The present invention relates to a wireless communication technology for real-time image encoding and transmission, on-line change of modulation mode, and ground reception and decoding on a fixed-wing unmanned aerial vehicle. Communication system and method thereof. Background technique [0002] Wireless image transmission communication devices are generally equipped with analog cameras or digital cameras, embedded central processing units, and large-capacity storage (such as SD cards, etc.). If image data needs to be transmitted to the ground in real time, a transmitter and equipment such as antennas. When the drone flies over the ground to be reconnaissance, it needs to turn on the camera, and the computer controls the camera to take pictures, store the recorded image data in the solid-state memory, and transmit relevant data back to the ground in real time through the transmitter and antenna. The monitoring center facilitates real-time processing ...

AI Technical Summary

Problems solved by technology

[0007] Because most of the existing UAV image processing equipment only save the collected image information in the large-capacity memory onboard, and seldom download it in real time. Even if it is downloaded, its downlink capability is very limited and the technology is immature. This makes it impossible for the ground flight monitoring center to obtain relevant visual information on the scene in real time.

[0008] Moreover, the existing wireless image transmission equipment adopts a fixed modulation mode, which cannot be dynamically changed by remote control to meet the changing requirements of the channel environment. As a result, the performance of the existing wireless image transmission equipment cannot be maximized , that is to better meet the actual needs of high performance and high reliability of surveying and remote sensing images

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