CN102610210A

CN102610210A - Multi-video signal ring-in/ring-out device

Info

Publication number: CN102610210A
Application number: CN2012100406571A
Authority: CN
Inventors: 夏俊; 朱鑫贵
Original assignee: GUANGDONG KAIMY ELECTRIC CO Ltd
Current assignee: GUANGDONG KAIMY ELECTRIC CO Ltd
Priority date: 2012-02-22
Filing date: 2012-02-22
Publication date: 2012-07-25
Anticipated expiration: 2032-02-22
Also published as: CN102610210B

Abstract

A multi-video signal ring-in/ring-out device comprises a more than one video signal interface-equipped module for converting a video signal into a TTL signal and a LVDS signal in sequence, a module for converting the LVDS signal into a TTL signal, a module for converting a TTL signal into a TMDS signal, a RS485 communication protocol assignment module, a video signal output interface, and a microcomputer control chip. Compared with the prior art, the inventive device can convert a conventional video signal into a video signal capable of being transmitted at a long distance and facilitating centralized display control, and having strong interference resistance and low transmission cost.

Description

The multi-channel video signal ring goes into to encircle out device

Technical field

Key in technical field herein and describe paragraph.

Background technology

The present invention relates to a kind of apparatus for processing of video signals.

Summary of the invention

The transmission of traditional multi-channel video signal all is an analog signal transmission, and a little less than the analog signal transmission antijamming capability, transmitting range is short, and image quality is fuzzy, and the medium that transmission is relied on requires height, causes transmission cost high.

Summary of the invention:

The valve purpose of this valve be to provide a kind of with conventional vision signal convert to can grow Distance Transmission, that antijamming capability is strong, transmission cost is low, convenient concentrating show that the multi-channel video signal ring of control goes into to encircle out device.

The present invention realizes like this; Comprise and have vision signal being converted successively to TTL, LVDS signal module, the LVDS conversion of signals being become TTL signal module, becomes TMDS signal module, RS485 communication protocol to distribute module, video signal output interface, microcomputerized control chip the TTL conversion of signals of video signal interface; The LVDS signal output that vision signal is converted successively to TTL, LVDS signal module links to each other with the LVDS signal input that the LVDS conversion of signals is become TTL signal module; The LVDS conversion of signals is become the TTL signal output of TTL signal module link to each other with the TTL signal input that the TTL conversion of signals is become TMDS signal module; Become the TMDS signal output of TMDS signal module to link to each other the TTL conversion of signals with video signal output interface; RS485 communication protocol distributes the RS485 signal output of module to link to each other with video signal output interface, and the control signal output of microcomputerized control chip is imported with the control signal that vision signal is converted successively to TTL, LVDS signal module respectively, the LVDS conversion of signals is become the control signal of TTL signal module to import, becomes the control signal input of TMDS signal module, the control signal input that RS485 communication protocol is distributed module to link to each other the TTL conversion of signals.During work; With video signal source through video signal interface with convert vision signal to TTL successively, LVDS signal module is connected; Distribute the signal input end of module signal input part and microcomputerized control chip to be connected RS232 control signal output unit and RS485 communication protocol; Corresponding multiply-computer series connection display device together is connected with video signal output interface through cable; Through being connected with video signal interface to be input to vision signal is converted external vision signal to TTL, LVDS signal module successively; Under the control of microcomputerized control chip; External vision signal converts the vision signal of TTL form earlier to; Convert the vision signal of LVDS form then to by the vision signal of TTL form; The video signal transmission of LVDS form is to the LVDS conversion of signals being become TTL signal module, under the control of microcomputerized control chip, the LVDS conversion of signals become TTL signal module to convert the vision signal of LVDS form the vision signal of TTL form to and the vision signal of TTL form is sent to the TTL conversion of signals is become TMDS signal module; Under the control of microcomputerized control chip; With the TTL conversion of signals become TMDS signal module to convert the vision signal of TTL form the vision signal of TMDS form to and with the vision signal of TMDS form through on the corresponding display equipment that video signal output interface is transferred to this interface links to each other, simultaneously, under the control of microcomputerized control chip; RS485 communication protocol distributes module to convert the RS232 control signal of RS232 control signal output unit output to the RS485 control signal and through on the corresponding display equipment that video signal output interface is transferred to this interface links to each other, and display device converts the RS485 control signal to RS232 control signal cake and shows corresponding video according to the order of RS232 control signal.Employing converts vision signal to the vision signal of TTL form, the vision signal of LVDS form, the vision signal of TTL form, the vision signal of TMDS form successively; Can vision signal be converted to the vision signal of the TMDS form that can grow distance, the transmission of anti-external interference and cooperate the RS485 control signal that can grow distance, the transmission of anti-external interference; Like this; Just can realize the long purpose that shows apart from centralized control; Greatly facilitate the long control that shows apart from the high definition multiway images, lowered use cost widely.

Here; It is the high-performance TMDS signal receiving chip of Sil1161 that the module chip that converts vision signal to TTL, LVDS signal module successively adopts silicon to reflect the model that electronics scientific technology co (SiliconImage) produces, with the LVDS conversion of signals become TTL signal module, all to adopt the model of Texas Instruments (Texas Instruments) encapsulation be that the model that TFP410 chip or silicon reflect electronics scientific technology co (SiliconImage) encapsulation is the Sil164 chip for the module chip that becomes TMDS signal module to be adopted the TTL conversion of signals.

Compared with present technology the present invention has conventional vision signal converted to and can grow Distance Transmission, that antijamming capability is strong, that transmission cost is low, the convenient advantage that shows control of concentrating.

Description of drawings:

Fig. 1 is a structural representation of the present invention.

Embodiment:

Combine accompanying drawing and embodiment that the present invention is done describes in further detail at present:

As shown in the figure; The present invention includes and have vision signal being converted successively to TTL, LVDS signal module 2, the LVDS conversion of signals being become TTL signal module 3, becomes TMDS signal module 4, RS485 communication protocol to distribute module 5, video signal output interface 6, microcomputerized control chip 7 the TTL conversion of signals of a plurality of video signal interfaces 1; The LVDS signal output that vision signal is converted successively to TTL, LVDS signal module 2 links to each other with the LVDS signal input that the LVDS conversion of signals is become TTL signal module 3; The LVDS conversion of signals is become the TTL signal output of TTL signal module 3 link to each other with the TTL signal input that the TTL conversion of signals is become TMDS signal module 4; Become the TMDS signal output of TMDS signal module 4 to link to each other the TTL conversion of signals with video signal output interface 6; RS485 communication protocol distributes the RS485 signal output of module 5 to link to each other with video signal output interface 6, and the control signal output of microcomputerized control chip 7 is imported with the control signal that vision signal is converted successively to TTL, LVDS signal module 2 respectively, the LVDS conversion of signals is become the control signal of TTL signal module 3 to import, becomes the control signal input of TMDS signal module 4, the control signal input that RS485 communication protocol is distributed module 5 to link to each other the TTL conversion of signals.During work; With a plurality of video signal sources 12 through video signal interface 1 with convert vision signal to TTL successively, LVDS signal module 2 is connected; Distribute the signal input end of module 5 signal input parts and microcomputerized control chip 7 to be connected RS232 control signal output unit 8 and RS485 communication protocol; Corresponding multiply-computer series connection display device 9 together is connected with video signal output interface 6 through cable 10; Like this; Convert the vision signal of TMDS form to through the vision signal of selecting a video signal source also this video signal source to be exported RS232 control signal output unit 8; Together with converting the RS485 control signal to by the RS232 control signal, be sent to each display device 9 through cable 10, the RS232 control signal device 11 that the RS485 control signal is converted to of each display device 9 converts the RS485 control signal to RS232 control signal cake and shows corresponding video according to the instruction of RS232 control signal.

Here; It is the high-performance TMDS signal receiving chip of Sil1161 that the module chip that converts vision signal to TTL, LVDS signal module 2 successively adopts silicon to reflect the model that electronics scientific technology co (SiliconImage) produces, with the LVDS conversion of signals become TTL signal module 3, all to adopt the model of Texas Instruments (Texas Instruments) encapsulation be that the model that TFP410 chip or silicon reflect electronics scientific technology co (SiliconImage) encapsulation is the Sil164 chip for the module chip that becomes TMDS signal module 4 to be adopted the TTL conversion of signals.

Claims

1. the multi-channel video signal ring goes into to encircle out device; It is characterized in that comprising and have vision signal being converted successively to TTL, LVDS signal module, the LVDS conversion of signals being become TTL signal module, becomes TMDS signal module, RS485 communication protocol to distribute module, video signal output interface, microcomputerized control chip the TTL conversion of signals of an above video signal interface; The LVDS signal output that vision signal is converted successively to TTL, LVDS signal module links to each other with the LVDS signal input that the LVDS conversion of signals is become TTL signal module; The LVDS conversion of signals is become the TTL signal output of TTL signal module link to each other with the TTL signal input that the TTL conversion of signals is become TMDS signal module; Become the TMDS signal output of TMDS signal module to link to each other the TTL conversion of signals with video signal output interface; RS485 communication protocol distributes the RS485 signal output of module to link to each other with video signal output interface, and the control signal output of microcomputerized control chip is imported with the control signal that vision signal is converted successively to TTL, LVDS signal module respectively, the LVDS conversion of signals is become the control signal of TTL signal module to import, becomes the control signal input of TMDS signal module, the control signal input that RS485 communication protocol is distributed module to link to each other the TTL conversion of signals.

2. high definition long-distance video transfer encoding equipment according to claim 1; It is characterized in that adopting silicon to reflect the model that electronics scientific technology co produces the module chip that vision signal converts TTL, LVDS signal module successively to is the high-performance TMDS signal receiving chip of Sil1161, with the LVDS conversion of signals become TTL signal module, all to adopt the model of Texas Instruments's encapsulation be that the model that TFP410 chip or silicon reflect electronics scientific technology co's encapsulation is the Sil164 chip for the module chip that becomes TMDS signal module to be adopted the TTL conversion of signals.