CN205883440U

CN205883440U - PC video capture card with video compression function

Info

Publication number: CN205883440U
Application number: CN201620668491.1U
Authority: CN
Inventors: 岳建明; 岳东泽; 范英; 王联民; 董维; 赵国兵
Original assignee: Jiangsu Sanleng Smartcity&iot System Co Ltd
Current assignee: Jiangsu Sanleng Smartcity&iot System Co Ltd
Priority date: 2016-06-29
Filing date: 2016-06-29
Publication date: 2017-01-11
Anticipated expiration: 2026-06-29

Abstract

The utility model discloses a PC video capture card with video compression function belongs to video acquisition technical field, including camera interface, high -speed AD module, character stack module, the date module, FPGA, PCI bus interface, first two port RAM module, second two port RAM module, third two port RAM module, the video storage module, and a video compressing module, the ARM controller, a SDRAM module, the 2nd SDRAM module, 2, 4G module and GPRS module, video acquisition has been realized, the trinity technique of video compression and video wireless transmission, and adopt three to examine the treater modes, video capture card's picking rate has been accelerated greatly, the multitask has been realized, multithreading simultaneous processing, video capture card's throughput has been accelerated.

Description

PC video frequency collection card with video compression functionality

Technical field

This utility model belongs to video capture technology field.

Background technology

Video frequency collection card has been widely applied in the middle of the life of people at present, and real-time video transmission technologies also exists The biggest development has been obtained under the promotion of this demand.But traditional Video transmission system utilizes PC as the main portion of system Part, it is simultaneously used various cable to realize the transmission of video so that Video transmission system is greatly limited, and mesh Front video frequency collection card all uses uniprocessor mode, and gathering video signal when, processing speed is slow, and can not carry out many Thread work.

Utility model content

The purpose of this utility model is to provide a kind of PC video frequency collection card with video compression functionality, it is achieved that video is adopted The technology that collection, video compress and video wireless transmission are three-in-one, and use three core processor modes, it is greatly accelerated video acquisition The picking rate of card, it is achieved that multitask, multithreading process simultaneously, accelerate the disposal ability of video frequency collection card.

For achieving the above object, this utility model is by the following technical solutions:

With the PC video frequency collection card of video compression functionality, including utilizing camera interface, high speed AD module, character adding mould Block, date module, FPGA, pci bus interface, the first dual port RAM module, the second dual port RAM module, the 3rd dual port RAM module, Video storage modules, video compressing module, ARM controller, the first SDRAM module, the second SDRAM module, 2,4G module and GPRS module, utilizing camera interface connects high speed AD module, high speed AD module, pci bus interface, character adding module, date mould Block, the first dual port RAM module and the second dual port RAM module are all connected with FPGA, and video storage modules connects video compressing module, depending on Frequently compression module connects the second dual port RAM module, and video compressing module is also connected with the 3rd dual port RAM module, the second dual port RAM mould Block and the 3rd dual port RAM module are all connected with ARM controller, and ARM controller is also connected with the first SDRAM module and the 2nd SDRAM mould Block, the first SDRAM module connects GPRS module, and the second SDRAM module connects 2.4G module.

The model of described high speed AD module is TMS320F2812.

The model of described video compressing module is Ambarella A5s25.

Described video storage modules is NOR FLASH memory.

The model of described date module is AMI8563.

Described ARM controller is ARM9 controller.

The purpose of this utility model is to provide a kind of PC video frequency collection card with video compression functionality, it is achieved that video is adopted The technology that collection, video compress and video wireless transmission are three-in-one, and use video compressing module, FPGA together with arm processor The three core processor modes used, are greatly accelerated the picking rate of video frequency collection card, it is achieved that multitask, multithreading are located simultaneously Reason, accelerates the disposal ability of video frequency collection card.

This utility model also carries Large Copacity NOR FLASH memory, can store video data voluntarily, serve regarding The protective effect of frequency evidence, prevents the phenomenon that cannot recall important video because of hard disk corruptions.

Accompanying drawing explanation

Fig. 1 is schematic diagram block diagram of the present utility model.

Detailed description of the invention

As shown in Figure 1 with the PC video frequency collection card of video compression functionality, including utilizing camera interface, high speed AD module, word Symbol laminating module, date module, FPGA, pci bus interface, the first dual port RAM module, the second dual port RAM module, the 3rd twoport RAM module, video storage modules, video compressing module, ARM controller, the first SDRAM module, the second SDRAM module, 2,4G Module and GPRS module, utilizing camera interface connect high speed AD module, high speed AD module, pci bus interface, character adding module, Date module, the first dual port RAM module and the second dual port RAM module are all connected with FPGA, and video storage modules connects video compress Module, video compressing module connects the second dual port RAM module, and video compressing module is also connected with the 3rd dual port RAM module, second pair Mouth RAM module and the 3rd dual port RAM module are all connected with ARM controller, and ARM controller is also connected with the first SDRAM module and second SDRAM module, the first SDRAM module connects GPRS module, and the second SDRAM module connects 2.4G module.

The model of described high speed AD module is TMS320F2812.

The model of described video compressing module is Ambarella A5s25.

Described video storage modules is NOR FLASH memory.

The model of described date module is AMI8563.

Described ARM controller is ARM9 controller.

During work, utilizing camera interface connects photographic head, and video information is digitized by photographic head by high speed AD module Sending FPGA after conversion to and enter video line pretreatment, generate digital of digital video data, digital of digital video data is passed through quickly by FPGA again Dual port RAM module send video compressing module to, digital video information is compressed processing by video compressing module, and stores In video storage modules；

FPGA carries out video pre-filtering when, FPGA reads the date and time information of date module, and passes through character adding Date and time information is added in digital of digital video data by module, makes video information have the function of time showing.

The described PC video acquisition with video compression functionality is arranged with pci bus interface, is directly inserted into PC computer PCI slot in, with PC compunlcation, the video information compressed can be stored mould from video by video compressing module by FPGA Block takes out, and sends PC computer to by pci bus interface, make user directly to be inquired about by PC computer.

Camera collection to video information can also be directly sent in pci bus by FPGA, user can be direct Real-time pictures by the viewing photographic head shooting of PC computer.

User can also be communicated with GPRS module by mobile phone A PP end, directly transfers video pressure by mobile network Video information in contracting module.

User mobile phone APP end can also communicate with 2.4G module by the way of 2.4G communicates, and ARM controller is permissible Directly accessed the photographic head of user mobile phone APP end by 2.4G module, directly gather the digital video letter of mobile phone camera shooting Breath, and this digital video information is transferred to FPGA carries out pretreatment, FPGA passes through after this digital video information pretreatment again Pci bus interface is transferred to PC computer, user can directly on PC computer recording mobile phone photographic head shooting video, it is to avoid The problem that mobile phone cannot store because of low memory, also solving also will be again to computer transmission video after mobile phone has shot video The trouble of data, saves the time.

Video information taken by mobile phone can also be transmitted directly to video compressing module and press by ARM controller Contracting, is stored in the video information compressed in video storage modules after video compressing module compression.

When user checks the real-time video information captured by photographic head by PC computer, user can also be straight by mobile phone Connecing the video information transferring in video storage modules to check, two above action is held by FPGA and ARM controller respectively OK, and do not interfere with processing speed and the transmission speed of video, it is achieved that the technology that multithreading task is carried out simultaneously.

The purpose of this utility model is to provide the PC video frequency collection card with video compression functionality, it is achieved that video acquisition, Video compress and the three-in-one technology of video wireless transmission, and use video compressing module, FPGA and arm processor to be used together Three core processor modes, be greatly accelerated the picking rate of video frequency collection card, it is achieved that multitask, multithreading process simultaneously, Accelerate the disposal ability of video frequency collection card.

Claims

1. with the PC video frequency collection card of video compression functionality, it is characterised in that: include utilizing camera interface, high speed AD module, word Symbol laminating module, date module, FPGA, pci bus interface, the first dual port RAM module, the second dual port RAM module, the 3rd twoport RAM module, video storage modules, video compressing module, ARM controller, the first SDRAM module, the second SDRAM module, 2,4G Module and GPRS module, utilizing camera interface connect high speed AD module, high speed AD module, pci bus interface, character adding module, Date module, the first dual port RAM module and the second dual port RAM module are all connected with FPGA, and video storage modules connects video compress Module, video compressing module connects the second dual port RAM module, and video compressing module is also connected with the 3rd dual port RAM module, second pair Mouth RAM module and the 3rd dual port RAM module are all connected with ARM controller, and ARM controller is also connected with the first SDRAM module and second SDRAM module, the first SDRAM module connects GPRS module, and the second SDRAM module connects 2.4G module.

2. as claimed in claim 1 with the PC video frequency collection card of video compression functionality, it is characterised in that: described high-speed AD mould The model of block is TMS320F2812.

3. as claimed in claim 1 with the PC video frequency collection card of video compression functionality, it is characterised in that: described video compress The model of module is Ambarella A5s25.

4. as claimed in claim 1 with the PC video frequency collection card of video compression functionality, it is characterised in that: described video stores Module is NOR FLASH memory.

5. as claimed in claim 1 with the PC video frequency collection card of video compression functionality, it is characterised in that: described date module Model be AMI8563.

6. as claimed in claim 1 with the PC video frequency collection card of video compression functionality, it is characterised in that: described ARM controls Device is ARM9 controller.