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Multi-channel video seamless switching system and method for unmanned aerial vehicle

A multi-channel video, seamless switching technology, applied in the field of video processing, can solve the problems of inconvenient operation, poor video output timing stability, easy loss of video data, etc., to improve operating efficiency, ensure timing stability, and improve integration. high effect

Active Publication Date: 2019-04-09
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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Problems solved by technology

[0006] In order to solve the technical problems of poor video output timing stability, easy loss of video data, and inconvenient operation in the existing video switching technology based on digital devices, the present invention provides a system and method for seamless switching of multi-channel video for unmanned aerial vehicles

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  • Multi-channel video seamless switching system and method for unmanned aerial vehicle
  • Multi-channel video seamless switching system and method for unmanned aerial vehicle
  • Multi-channel video seamless switching system and method for unmanned aerial vehicle

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Embodiment Construction

[0056] The present invention will be further described below in conjunction with accompanying drawing.

[0057] Such as figure 1 As shown, the multi-channel video seamless switching system of the present invention includes hardware and software;

[0058] The hardware includes an FPGA (main controller), N video input interface units connected to the FPGA, a synchronous pulse output interface unit, a video output interface unit and a switching instruction receiving interface unit; N is a positive integer greater than or equal to 2.

[0059] The video input interface unit is used to collect external video signals; the video input interface unit can use the Cameralink video input interface, the chip model is ds90cr286 or ds90cr288; it can also use the PAL video input interface, the chip model is adv7180; or use the SDI video input interface, the chip The model is GS2971; or the digital video LVDS input interface is used, the chip model is ds90lv032; or the RS422 input interface i...

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Abstract

The invention provides a multi-channel video seamless switching system and method for an unmanned aerial vehicle in order to solve the technical problems that an existing video switching technology based on a digital device is poor in video output time sequence stability, prone to losing video data and inconvenient to operate. The method comprises the following steps: 1) sending a synchronous pulse signal; 2) receiving N paths of video data including video frame enabling, line enabling and video image data; 3) preprocessing the received N paths of video data, so that the subsequent buffer isolation is started from the first pixel data of the first row of the first frame; 4) buffer isolation; 5) reading buffered and isolated video data respectively, regenerating video frame enabling and line enabling, and outputting the regenerated video frame enabling and line enabling and read video image data to a channel selection module; 6) receiving a video channel switching instruction; 7) gatingcorresponding data channels, and 8) outputting the video image data by the gated data channels.

Description

technical field [0001] The invention belongs to the technical field of video processing, and relates to a multi-channel video switching system and method for an unmanned aerial vehicle. Background technique [0002] With the continuous development of drone technology, more and more drones at home and abroad are equipped with various types of surveillance cameras on the fuselage. Due to the limitation of the telemetry transmission equipment of the drone, that is, the telemetry equipment can only transmit one video signal, and the multi-channel video signal in the entire flight system needs to be monitored and recorded in real time when the drone is flying. Therefore, a multi-channel With the video switching system, during the flight of the UAV, the ground personnel can switch between multiple onboard cameras, monitor the external situation in real time, and take timely solutions to the problems found. [0003] At present, there are two main methods of video switching technol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/067H04N5/268H04N7/18
CPCH04N5/067H04N5/268H04N7/181
Inventor 边河张德瑞王浩刘庆段程鹏
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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