CN204190879U - A kind of video wireless network transmission system - Google Patents
A kind of video wireless network transmission system Download PDFInfo
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- CN204190879U CN204190879U CN201420742927.8U CN201420742927U CN204190879U CN 204190879 U CN204190879 U CN 204190879U CN 201420742927 U CN201420742927 U CN 201420742927U CN 204190879 U CN204190879 U CN 204190879U
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Abstract
The utility model discloses a kind of video wireless network transmission system, comprise server, multiple embedded front-end equipment, multiple video camera, multiple client and peripheral assembly, described video camera and corresponding described embedded front-end equipment connection, described server is connected with the data input pin of multiple described embedded front-end equipment respectively, the data output end of described server respectively with multiple described client's side link; Described embedded front-end equipment and peripheral assembly comprise ARM9 processor, MPEG-4 video processor, HF transmitter, power module, SDRAM, NANDFALSH and display.The design and implimentation of main functional modules, solves the situation of network traffic congestion, and automatically can regulate the compression ratio of video. and improve network transmission quality, ensure the smooth broadcasting of video, there is the value promoted the use of.
Description
Technical field
The utility model relates to transmission of wireless signals field, particularly relates to a kind of video wireless network transmission system.
Background technology
Along with the develop rapidly of wireless communication technology and computer networking technology, improving constantly of wireless network transmissions bandwidth, real time data passes writing brush ability and constantly strengthens, WLAN (wireless local area network) is day by day universal, makes the transmission of video based on WLAN (wireless local area network) become study hotspot, compared with cable network, wireless network has networking flexibility, extensibility, good portability, the network rebuilding is convenient. the advantages such as maintenance cost is low.
People propose a kind of based on embedding people's formula (SuSE) Linux OS before this, the embedding people's microsever of S3C2440A of employing ARM920T kernel is the real-time video wireless transmitting system of hardware and software platform, and the video image after software MPEG-4 compressed encoding can be passed through 802.11 wireless network transmissions to server by this system.To realize the analysis of video image, storage and Presentation Function.
Somebody proposes a kind of embedding people's formula Multipath Video Monitoring System scheme based on ARM9 emblem processor A T91-RM9200; Describe a kind of wireless video monitoring system based on S3C2410 hardware platform, S3C2440 hardware platform and embedding people's formula Linux system respectively.Wherein, employing be hardware-compressed chip to realize the compressed encoding of MPEG-4, employing be that JPEG compression is carried out to the image collected.Compared with S3C2410, the dominant frequency of S3C2440 improves, and video display effect is also better.And Linux is easy to reduce than WinCE, transplantability, real-time are better, use the cost performance of MPEG-4 hardware-compressed not high, portable and autgmentability is poor, are unfavorable for improving algorithm and expanding; Use JPEG compression, when picture variation is less, pretty good picture quality can be provided, but its compression ratio can not be too high, otherwise can video quality be affected, also can cause the phenomenon of the coding deterioration such as mosaic.
Utility model content
The purpose of this utility model to provide a kind of video wireless network transmission system that automatically can regulate the compression ratio of video, improve network transmission quality, ensure the smooth broadcasting of video.
In order to reach above object, the technical scheme that the utility model is taked is as follows:
A kind of video wireless network transmission system, comprise server, multiple embedded front-end equipment, multiple video camera, multiple client and peripheral assembly, described video camera and corresponding described embedded front-end equipment connection, described server is connected with the data output end of multiple described embedded front-end equipment respectively, the data output end of described server respectively with multiple described client's side link; Described embedded front-end equipment and peripheral assembly comprise ARM9 processor, MPEG-4 video processor, HF transmitter, power module, SDRAM, NANDFALSH and display, and the FPDP of described ARM9 processor is connected with the FPDP of the FPDP of described HF transmitter, the FPDP of described SDRAM and described NANDFALSH respectively; The data input pin of described ARM9 processor is connected with the data output end of described MPEG-4 video processor; The data output end of described video camera is connected with the data input pin of described MPEG-4 video processor; Described power module is that described ARM9 processor is powered; The data output end of described ARM9 processor is connected with the data input pin of described display.
Further, described HF transmitter comprises the first metal-oxide-semiconductor, second metal-oxide-semiconductor, resistance, diode, electric capacity, inductance, potentiometer, switch, power supply and antenna, the positive pole of described power supply is connected with the first end of described switch, second end of described switch is connected with the drain electrode of described second metal-oxide-semiconductor and the first end of described potentiometer respectively, the negative pole of described power supply respectively with the second end of described potentiometer, the first end of described electric capacity, the first end of described resistance is connected rear ground connection with the first end of described inductance, the source electrode of described second metal-oxide-semiconductor is connected with the drain electrode of described first metal-oxide-semiconductor, the source electrode of described first metal-oxide-semiconductor is connected with the sliding end of described potentiometer, the grid of described first metal-oxide-semiconductor respectively with the second end of described electric capacity, second end of described resistance is connected with the negative pole of described diode, the positive pole of described diode is connected with the second end of described inductance and described antenna respectively.
Further, described embedded front-end equipment, described video camera and described client are two.
As preferably, described ARM9 processor model is S3C2440A, adopts ARM920T kernel.
Compared with prior art, the beneficial effects of the utility model are as follows:
The utility model adopts server, multiple embedded front-end equipment, multiple video camera, multiple client and peripheral assembly to combine, the design and implimentation of main functional modules, solve the situation of network traffic congestion, and automatically can regulate the compression ratio of video, improve network transmission quality, ensure the smooth broadcasting of video, there is the value promoted the use of.
Accompanying drawing explanation
Fig. 1 is structured flowchart of the present utility model;
Fig. 2 is the structured flowchart of embedded front-end equipment and peripheral assembly in the utility model;
Fig. 3 is the circuit diagram of HF transmitter described in the utility model.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the utility model is further described, is used for explaining the utility model in the illustrative examples of this utility model and explanation, but not as to restriction of the present utility model.
As shown in Figure 1, Figure 2 and Figure 3, a kind of video wireless network transmission system, comprise server, two embedded front-end equipment, two video cameras, two clients and peripheral assemblies, video camera and corresponding embedded front-end equipment connection, server is connected with the data output end of two embedded front-end equipment respectively, the data output end of server respectively with two client's side link; Embedded front-end equipment and peripheral assembly comprise ARM9 processor, MPEG-4 video processor, HF transmitter, power module, SDRAM, NANDFALSH and display, and ARM9 processor model is S3C2440A, adopt ARM920T kernel.The FPDP of ARM9 processor is connected with the FPDP of the FPDP of HF transmitter, the FPDP of SDRAM and NANDFALSH respectively; The data input pin of ARM9 processor is connected with the data output end of MPEG-4 video processor; The data output end of video camera is connected with the data input pin of MPEG-4 video processor; Power module is that ARM9 processor is powered; The data output end of ARM9 processor is connected with the data input pin of display.HF transmitter comprises the first metal-oxide-semiconductor, second metal-oxide-semiconductor, resistance, diode, electric capacity, inductance, potentiometer, switch, power supply and antenna, the positive pole of power supply is connected with the first end of switch, second end of switch is connected with the drain electrode of the second metal-oxide-semiconductor and the first end of potentiometer respectively, the negative pole of power supply respectively with the second end of potentiometer, the first end of electric capacity, ground connection after the first end of resistance is connected with the first end of inductance, the source electrode of the second metal-oxide-semiconductor is connected with the drain electrode of the first metal-oxide-semiconductor, the source electrode of the first metal-oxide-semiconductor is connected with the sliding end of potentiometer, the grid of the first metal-oxide-semiconductor respectively with the second end of electric capacity, second end of resistance is connected with the negative pole of diode, the positive pole of diode is connected with the second end of inductance and antenna respectively.
ASUS WL-167g V2 uses RT73 chip, this chip has the Iinux increased income to drive, due to former Makefile file and uncomfortable ARM transplant, first to carry out cross compile again to its amendment, finally generate and drive rt73.k0 file, download it on ARM plate, and use in-SMOD order to load.Load successfully, the AP website existed near search, then iwconfig is carried out to network MODE is set, the parameters such as EESID.KEY, and test wireless network with ping order and whether be communicated with.
The technical solution of the utility model is not limited to the restriction of above-mentioned specific embodiment, and every technology distortion made according to the technical solution of the utility model, all falls within protection range of the present utility model.
Claims (4)
1. a video wireless network transmission system, it is characterized in that: comprise server, multiple embedded front-end equipment, multiple video camera, multiple client and peripheral assembly, described video camera and corresponding described embedded front-end equipment connection, described server is connected with the data output end of multiple described embedded front-end equipment respectively, the data output end of described server respectively with multiple described client's side link;
Described embedded front-end equipment and peripheral assembly comprise ARM9 processor, MPEG-4 video processor, HF transmitter, power module, SDRAM, NANDFALSH and display, and the FPDP of described ARM9 processor is connected with the FPDP of the FPDP of described HF transmitter, the FPDP of described SDRAM and described NANDFALSH respectively; The data input pin of described ARM9 processor is connected with the data output end of described MPEG-4 video processor; The data output end of described video camera is connected with the data input pin of described MPEG-4 video processor; Described power module is that described ARM9 processor is powered; The data output end of described ARM9 processor is connected with the data input pin of described display.
2. a kind of video wireless network transmission system according to claim 1, it is characterized in that: described HF transmitter comprises the first metal-oxide-semiconductor, second metal-oxide-semiconductor, resistance, diode, electric capacity, inductance, potentiometer, switch, power supply and antenna, the positive pole of described power supply is connected with the first end of described switch, second end of described switch is connected with the drain electrode of described second metal-oxide-semiconductor and the first end of described potentiometer respectively, the negative pole of described power supply respectively with the second end of described potentiometer, the first end of described electric capacity, the first end of described resistance is connected rear ground connection with the first end of described inductance, the source electrode of described second metal-oxide-semiconductor is connected with the drain electrode of described first metal-oxide-semiconductor, the source electrode of described first metal-oxide-semiconductor is connected with the sliding end of described potentiometer, the grid of described first metal-oxide-semiconductor respectively with the second end of described electric capacity, second end of described resistance is connected with the negative pole of described diode, the positive pole of described diode is connected with the second end of described inductance and described antenna respectively.
3. a kind of video wireless network transmission system according to claim 1, is characterized in that: described embedded front-end equipment, described video camera and described client are two.
4. a kind of video wireless network transmission system according to claim 1, is characterized in that: described ARM9 processor model is S3C2440A, adopts ARM920T kernel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420742927.8U CN204190879U (en) | 2014-12-01 | 2014-12-01 | A kind of video wireless network transmission system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420742927.8U CN204190879U (en) | 2014-12-01 | 2014-12-01 | A kind of video wireless network transmission system |
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| CN204190879U true CN204190879U (en) | 2015-03-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106412095A (en) * | 2016-10-26 | 2017-02-15 | 安徽扬远信息科技有限公司 | Embedded Linux video based monitoring system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106412095A (en) * | 2016-10-26 | 2017-02-15 | 安徽扬远信息科技有限公司 | Embedded Linux video based monitoring system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150304 Termination date: 20191201 |
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| CF01 | Termination of patent right due to non-payment of annual fee |