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Portable video capture device

A video capture device and video capture technology are applied in the field of video coding transmission and wireless communication research to achieve the effect of realizing information sharing, ensuring interconnection and improving command efficiency

Inactive Publication Date: 2015-04-08
THE 22ND RES INST OF CHINA ELECTRONICS TECH GROUP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the present invention provides a portable video acquisition device, which solves the problem that the traditional limited video transmission requires transmission cables, so it is difficult to use the video signal, an important information, for battlefield command and control

Method used

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Embodiment 1

[0022] (1) Real-time solution for video capture equipment

[0023] A portable video acquisition device, firstly, a suitable lens and CMOS sensor are selected in combination with actual needs. According to the needs of video acquisition in operations and reconnaissance scenes, in order to ensure a certain field of view, a lens with a fixed focal length of 8mm is selected, and the CMOS sensor is selected as 1 / 2.7″. At this time, the field of view is 34.5°×25.7°, which can meet general applications. need.

[0024] Secondly, according to the description in the technical scheme, design the hardware circuits of the acquisition module and the encoding module in the video acquisition equipment.

[0025] The circuit parts of the acquisition module and the encoding module are designed on one circuit board. like figure 1 As shown, the analog video digitization circuit is composed of digital video decoding chip TVP5147 produced by TI Company and peripheral circuits. The PAL system ana...

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Abstract

The invention discloses a portable video capture device, and aims at solving the problem that as traditional limited video transmission needs a transmission cable, important information, namely a video signal cannot be easily applied to battlefield command control. The portable video capture device comprises video capture equipment and a wireless local area network command system, wherein the video capture equipment comprises a video capture module and a video encoding module; the wireless local area network command system comprises a handheld table and a vehicular-locating set; the video collection module is used for collecting an analogue video signal of an original scene image, and transforming into a digital signal; the video encoding module is used for carrying out encoding compression on the digital signal output by the video capture module, and transforming into an H.264 video code stream, and transmitting the encoded H.264 video code stream to a wireless local area network handheld table through a network interface; the handheld table is used for wirelessly transferring the H / 264 video code stream to the remote vehicular-locating set. The portable video capture device is relatively small in size and relatively light in weight, is powered by virtue of a built-in battery, and is free of limitation of a data transmission cable, so that the portable video capture device can be used as a man-portable video capture device.

Description

technical field [0001] The invention relates to the field of video coding transmission and wireless communication research, in particular to a portable video acquisition device. Background technique [0002] Modern warfare has transformed from mechanized warfare in the industrial age to informationized warfare in the information age. The overall command system of the army is gradually flattening, changing the way in which command orders were issued layer by layer in the past, but passing command orders to the forefront in one step. This puts forward new requirements for the modern communication system, so that the combat instructions of the commanders and fighters can be transmitted to the forefront of the position safely, clearly and quickly. [0003] The multimedia dispatching system is an important means and tool for the army to convey command orders. As the most important multimedia information, video information plays an important role in the multimedia scheduling sys...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/18
Inventor 杜小宁郭宇荃郎锐徐威周亮晁坤毛云志
Owner THE 22ND RES INST OF CHINA ELECTRONICS TECH GROUP CORP
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