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Method and system for video transmission

A technology of video transmission and video, applied in the field of video transmission, can solve the problem of inability to customize the communication between mobile terminals and wireless cameras, and achieve the effects of improving user experience, increasing communication channels, and reducing costs

Active Publication Date: 2020-06-02
SHGENZHEN ZHAOHUA ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a method and system for video transmission, which solves the problem in the prior art that a customized mobile terminal with a specific format cannot be used to communicate with a wireless camera

Method used

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  • Method and system for video transmission
  • Method and system for video transmission

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Embodiment 1

[0044] To achieve the above purpose, if figure 1 As shown, the present invention discloses a method for video transmission, including:

[0045] S101. The wireless camera collects video, and sends the collected video stream data to the mobile terminal through the PAL system;

[0046] S102. The mobile terminal receives the collected video stream data through a built-in 2.4GHz receiving chip, and transmits the video stream data to the built-in video signal processor of the mobile terminal;

[0047]S103. The video signal processor performs PAL standard decoding on the video stream data, and performs GAMMA calibration, and outputs the calibrated video stream data through the DVP interface according to the YUV422 encoding format to the Interface conversion chip;

[0048] Wherein, the video signal processor includes a vertical synchronous signal VSYNC module, a horizontal synchronous signal HSYNC module, a frame indicator signal FID module, a vertical blanking signal VBLK module an...

Embodiment 2

[0077] Such as Image 6 As shown, the embodiment of the present application provides a video transmission system 20, including:

[0078] The wireless camera 21 is used to collect video, and the video stream data collected is sent to the mobile terminal through the PAL system;

[0079] The mobile terminal 22 has a PCB board 221, and a 2.4GHz receiving chip 222, a video signal processor 223, an interface conversion chip 224 and a CPU 225 placed on the PCB board, wherein the 2.4GHz receiving chip 222 is connected to the Video signal processor 223 is connected by CVBS interface, and described video signal processor 223 is connected with described interface conversion chip 224 by DVP interface, and described interface conversion chip 224 is connected with CPU225 by CSI-2 interface, and described video signal processing The device and the interface conversion chip are fixed on the mobile terminal PCB board 221 through the I2C bus, wherein,

[0080]The 2.4GHz receiving chip 222 is ...

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Abstract

The invention discloses a video transmission method. The video transmission method comprises the steps that a wireless camera acquires a video and sends acquired video stream data to a mobile terminalin a PAL mode; the mobile terminal receives the acquired video stream data through a built-in 2.4GHz receiving chip and sends the video stream data to a video signal processor arranged in the mobileterminal; the video signal processor conducts PAL mode decoding and GAMMA calibration on the video stream data, enables the decoded video stream data to pass through a DVP interface and outputs the calibrated video stream data to an interface conversion chip according to a YUV422 coding format; the interface conversion chip receives the calibrated video stream data, decodes the video stream data and outputs the decoded video stream data to a central processing unit (CPU) through an MIPICSI-2 interface; and the CPU conducts RGB transcoding on the video stream data in the YUV422 coding format, recognizes the video stream data frame by frame and then outputs the video stream data to an application to display the video.

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to a video transmission method and system. Background technique [0002] Mobile terminals, such as mobile phones, tablet computers and other wireless communication devices, are currently the mainstream devices used. The current mobile terminal can realize the built-in camera module to capture and display the video, and can also use the wireless signaling interaction protocol to realize the data transmission and interaction of the video stream with the peripheral camera equipment. The most typical application is realized through the wireless communication chip. Remote camera and local terminal control interaction such as shooting and transmission. [0003] However, the current mobile terminal equipment and wireless cameras all use mainstream communication protocols, such as WI-FI, Bluetooth and other communication protocols to achieve mutual transmission, but there...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/18H04N5/765H04N7/01
CPCH04N5/765H04N7/01H04N7/18
Inventor 张阳
Owner SHGENZHEN ZHAOHUA ELECTRONICS TECH CO LTD
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