CN203537473U - Video signal change-over box - Google Patents

Abstract

A video signal change-over box of the utility model comprises a box body and an electrical module. The box body is provided with a set of video input interfaces and a set of video output interfaces, wherein the video input interfaces comprise a VGA interface, an HDMI interface, an AV interface, and a BNC interface, and the video output interfaces also comprise a VGA interface, an HDMI interface, an AV interface, and a BNC interface. The change-over box further comprises a power supply module used for supplying power to all change-over modules. The change-over box completes the change-over among various types of video signals and indicates video signal change-over modes at the same time by indication lamps, so that users do not need to worry about the problem that a video signal source and video transmission or display equipment cannot be connected. The change-over box is convenient to operate and flexible to use.

Description

Vision signal interconnecting device

Technical field

The utility model relates to a kind of termination of vision signal, specifically a kind of Multifunction video-frequency line interconnecting device.

Background technology

At present conventional video interface is very many, the abbreviation that mainly comprises AV(Audio and Video) interface, VGA(Video Graphics Arrey, be Video Graphics Array) interface, HDMI(High Definition Multimedia Interface, be HDMI (High Definition Multimedia Interface)), BNC(Bayonet Nut Connector, usually said coaxial cable interface) interface etc.

AV interface, claims again compound interface, and transmission mixed video signal, does not pass through the processes such as the modulation of RF radiofrequency signal, amplification, detection, demodulation, and signal fidelity is relatively better.

VGA interface, is the interface type being most widely used on video card, and most video cards are all with this kind of interface.Mini audio or home theater have VGA interface and just can be connected with the display of computer easily, with the display of computer, show image.

HDMI occurs and fast-developing interface in recent years, can transmit high-definition digital video signal, can transmit uncompressed video signal.HDMI often can be used for Set Top Box, DVD player, PC, holder for TV playing, integrated amplifier, numerical digit sound equipment and television set.

Bnc interface is mainly used in connecting high-end home movie theatre product and professional video equipment.

In daily life, some TV only has radio frequency, AV interface and S terminal, when user accesses the VGA interface of computer or HDMI video source, cannot connect; The display that only possesses VGA interface also cannot access AV signal, HDMI vision signal; At video monitoring and transmission field, video camera delivery outlet is AV interface, Video Codec or video transmission module are bnc interfaces, some display device is again VGA interface or HDMI interface, the video interface of video capture device and video transmission equipment is varied, often can cause video capture device cannot be connected with video transmission equipment; There is in the market signal conversion equipment, such as on the market VGA turn HDMI transducer, VGA turns AV transducer etc., but such functions of the equipments are single, only possess the conversion between certain group permanent plant interface, cannot meet daily particularly video monitoring and transmission field and look the demand to various video interface conversion.

Therefore, need a kind of video signal switching device, adaptive scope is wide, can access various video signal and output various video signal, avoids cannot being connected between video signal source and display device or video capture device and video transmission equipment.

Utility model content

In view of this, the utility model provides a kind of vision signal interconnecting device, can connect various video signal source and output various video signal, adaptive scope is wide, can select more flexibly video translative mode and video input output interface pattern, avoid not causing equipment or system normally to use because interface between video signal source and demonstration or transmission equipment does not mate.

Vision signal interconnecting device of the present utility model, comprises box body and electrical module, is provided with one group of video input interface and one group of video output interface on described box body, and described video input interface comprises VGA interface, HDMI interface, AV interface and bnc interface; Described video output interface comprises VGA interface, HDMI interface, AV interface and bnc interface; Described electrical module, comprising: for input VGA interface signal being converted to the VGA of output HDMI interface signal, turn HDMI module; For input VGA interface signal being converted to the VGA of output AV interface and bnc interface signal, turn AV/BNC module; For input HDMI interface signal being converted to the HDMI of outputting VGA interface signal, turn VGA module; For input HDMI interface signal being converted to the HDMI of output AV interface and bnc interface signal, turn AV/BNC module; For input AV interface and bnc interface signal being converted to the AV/BNC of outputting VGA interface signal, turn VGA module; For input AV interface and bnc interface signal being converted to the AV/BNC of output HDMI interface signal, turn HDMI module; Also comprise the power module that is used to each modular converter power supply.

Further described box body is provided with power interface;

Further described box body is provided with a plurality of selection buttons, and each selects button to be used for controlling a signal conversion module, realizes the model selection of vision signal switching;

Further described video interface side is provided with indicator light, and each indicator light shows the state of institute's corresponding interface signal;

Further between described video input AV interface and output bnc interface, adopt direct connected mode;

Further between described video input bnc interface and output AV interface, adopt direct connected mode;

VGA further turns HDMI module and comprises an above process chip that can compensate signal, amplify;

VGA further turns AV/BNC module and comprises an above process chip that can compensate signal, amplify;

The beneficial effects of the utility model: vision signal interconnecting device of the present utility model, adopt various video modular converter, complete the conversion between various video signal, use indicator light instruction video mode changeover signal simultaneously, make user needn't worry video signal source with transmission of video or the problem that between showing, equipment cannot be connected, install easy to operately, use flexibly.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the utility model is further described.

Fig. 1 is external structure schematic diagram of the present utility model;

Fig. 2 is the utility model electrical module block diagram;

Embodiment

Below in conjunction with accompanying drawing, to the utility model is above-mentioned, be described in more detail with other technical characterictic and advantage.

External structure box body schematic diagram of the present utility model, is provided with one group of video input interface and one group of video output interface on box body as shown in Figure 1, and wherein one group of video input interface comprises VGA interface a1, HDMI interface a2, AV interface a3, bnc interface a4; Other one group of video output interface comprises VGA interface b1, HDMI interface b2, AV interface b3, bnc interface b4; Box body is provided with power interface d; Box body is provided with a plurality of selection buttons, VGA->HDMI button c1, VGA->AV/BNC button c2, HDMI->VGA button c3, HDMI->AV/BNC button c4, each selection button of AV/BNC->VGA button c5, AV/BNC->HDMI button c6 are used for controlling a signal conversion module, realize the model selection of vision signal switching; The other indicator light e that is provided with of box body video interface, each indicator light shows the state of institute's corresponding interface signal; For example press the button c1 the utility model realize VGA signal to the conversion of HDMI signal.

Electrical module block diagram of the present utility model as shown in Figure 2, comprises that VGA turnsHDMI module 10, VGA and turns AV/BNC module 11, HDMI and turnVGA module 12, HDMI and turn that AV/BNC module 13, AV/BNC turn VGA module 14, AV/BNC turnsHDMI module 15 and power module 9.VGA turnsHDMI module 10 inputs and connectsVGA signal input 1, and output connectsHDMI signal output 6, realizes VGA signal to the conversion of HDMI signal; VGA turns AV/BNC module 11 inputs and connectsVGA signal input 1, and output connects theoutput 7 of AV signal andBNC signal output 8, realizes VGA signal to the conversion of AV/BNC signal; HDMI turnsVGA module 12 inputs and connectsHDMI signal input 2, and output connects VGA signal output 5, realizes HDMI signal to the conversion of VGA signal; HDMI turns AV/BNC module 13 inputs and connectsHDMI signal input 2, and output connects theoutput 7 of AV signal andBNC signal output 8, realizes HDMI signal to the conversion of AV/BNC signal; AV/BNC turns VGA module 14 inputs and connects theinput 3 of AV signal and BNC signal input 4, and output connects VGA signal output 5, realizes AV/BNC signal to the conversion of VGA signal; AV/BNC turnsHDMI module 15 inputs and connects theinput 3 of AV signal and BNC signal input 4, and output connectsHDMI signal output 6, realizes AV/BNC signal to the conversion of HDMI signal;Power module 9 is each functional module power supply.

Button c1 controls the switch that VGA turnsHDMI module 10, button c2 controls the switch that VGA turns AV/BNC module 11, button c3 controls the switch that HDMI turnsVGA module 12, button c4 controls the switch that HDMI turns AV/BNC module 13, button c5 controls the switch that AV/BNC turns VGA module 14, button c6 controls the switch that AV/BNC turnsHDMI module 15, pressing the button c1 is to light input interface VGA interface a1 and the other indicator light of output interface HDMI interface b2, press the button equally c4 and can light input interface HDMI interface a2 and output interface AV interface b3 and the other indicator light of bnc interface b4.

Because AV signal and BNC signal do not need modular converter directly to change, therefore the utility model is directly connected theinput 3 of input AV signal with outputBNC signal output 8, the input 4 of input BNC signal is directly connected with output terminalsA V signal output 7, reaches the object of switching.

Because VGA signal is very large through long Distance Transmission signal attenuation, thus the utility model VGA turnHDMI module 10 and VGA turn AV/BNC module 11 all input addedsignal amplification chip 16 andamplification chip 17.

Claims (8)

1. a vision signal interconnecting device, comprises box body and electrical module, it is characterized in that:

On described box body, be provided with one group of video input interface and one group of video output interface, described video input interface comprises VGA interface, HDMI interface, AV interface and bnc interface; Described video output interface comprises VGA interface, HDMI interface, AV interface and bnc interface;

Described electrical module, comprising: for input VGA interface signal being converted to the VGA of output HDMI interface signal, turn HDMI module; For input VGA interface signal being converted to the VGA of output AV interface and bnc interface signal, turn AV/BNC module; For input HDMI interface signal being converted to the HDMI of outputting VGA interface signal, turn VGA module; For input HDMI interface signal being converted to the HDMI of output AV interface and bnc interface signal, turn AV/BNC module; For input AV interface and bnc interface signal being converted to the AV/BNC of outputting VGA interface signal, turn VGA module; For input AV interface and bnc interface signal being converted to the AV/BNC of output HDMI interface signal, turn HDMI module; Also comprise the power module that is used to each modular converter power supply.

2. vision signal interconnecting device according to claim 1, is characterized in that: described box body is provided with power interface.

3. vision signal interconnecting device according to claim 1, is characterized in that: described box body is provided with a plurality of selection buttons, and each selects button to be used for controlling a signal conversion module, realizes the model selection of vision signal switching.

4. vision signal interconnecting device according to claim 1, is characterized in that: the other indicator light that is provided with of described video input interface and video output interface, each indicator light shows the state of institute's corresponding interface signal.

5. vision signal interconnecting device according to claim 1, is characterized in that: between described video input AV interface and output bnc interface, adopt direct connected mode.

6. vision signal interconnecting device according to claim 1, is characterized in that: between described video input bnc interface and output AV interface, adopt direct connected mode.

7. vision signal interconnecting device according to claim 1, is characterized in that: described VGA turns HDMI module and comprises an above process chip that can compensate signal, amplify.

8. vision signal interconnecting device according to claim 1, is characterized in that: described VGA turns AV/BNC module and comprises an above process chip that can compensate signal, amplify.

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