Unmanned plane load device with real-time wireless high resolution image transmission function

A high-resolution, unmanned aerial vehicle technology, applied in the direction of image communication, television, closed-circuit television system, etc., can solve the problems of limited downlink capacity, important data loss, immature technology, etc., and achieve the goal of increasing compression work speed and increasing bandwidth Effect

Inactive Publication Date: 2012-09-26
NAT SPACE SCI CENT CAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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. First, in an emergency rescue situation, the on-site image needs to be processed in real time, and it takes several hours for the aircraft to fly back before seeing the image. Reflecting may not help; two, if the plane crashes, important data will be lost irreparably; three, if the onboard memory is damaged or part of the image data is lost during storage, the flight mission will also fail
Therefore, in the traditional mode, its wireless image transmission system either only stores the collected images in the on-board large-capacity memory and downloads them offline, or downloads the collected low-resolution images in real time. Practical needs of remote sensing images

Method used

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  • Unmanned plane load device with real-time wireless high resolution image transmission function
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  • Unmanned plane load device with real-time wireless high resolution image transmission function

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Embodiment Construction

[0028] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0029] The invention relates to a load device for realizing high-resolution real-time image transmission of an unmanned aerial vehicle, and can also be applied to other occasions requiring high-speed and large-size wireless image transmission. Taking a UAV high-resolution real-time image transmission system as an example, the device of the present invention will be further described in detail below.

[0030] When the device works normally, its volume is 200mm×120mm×50mm, its weight is 2Kg, and its power consumption is 30W. Using S-band digital transmission transmitter, working in the 2500MHz frequency band, the downlink code rate can reach 12Mbps, and the bit error rate is 10 -8, the output power is 5W, the modulation method is QPSK, the special image encoder adopts JPEG2000 compression algorithm, the image collected by the industrial digital ...

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Abstract

The invention relates to an unmanned plane load device with a real-time wireless high-resolution image transmission function, which comprises a digital camera module, a control processing module, a power supply module, as well as a high-speed image acquisition and coding module and a data transmission transmitter module, wherein the digital camera module is used for photographing a region to be inspected or mapped; the control processing module is used for completing the management control, data processing and system configuration of each functional module; the power supply module is used for powering devices; the high-speed image acquisition and coding module is used for processing and transmitting high-resolution images, acquiring original image data via a high-speed LVDS (Low Voltage Differential Signaling) interface of the digital camera, compressing and coding images to form an image code stream via a wavelet compression unit, and packing, framing and transmitting to the transmitter module via the control processing module; and the data transmission transmitter module transmits the data processed by the control processing module by adopting microwave to a ground station to increase the bandwidth of data transmission. The device is low in cost, good in real time performance, high in reliability, flexible in configuration, visual and convenient.

Description

technical field [0001] The present invention relates to a wireless communication technology for real-time image encoding and transmission, ground reception and decoding on an unmanned aerial vehicle. Embedded wireless communication equipment for packaging, framing, channel coding, modulation, power amplification, and microwave transmission of engineering parameter data. Background technique [0002] On the existing UAV platform, it is usually equipped with image acquisition encoding and storage equipment. For high-resolution images (above 5 million pixels), it is generally stored directly in the onboard large-capacity memory, and not downlinked in real time. ground station. When the UAV flies back to the ground, the memory card is manually removed and imported into the PC for offline processing on the ground. In addition, some products can be encoded and downlinked in real time through the onboard image encoder. However, due to the limited frequency band and bandwidth, it ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/18H04N7/26
Inventor 魏本杰
Owner NAT SPACE SCI CENT CAS
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