CN202351790U

CN202351790U - Delay device for remotely connecting computer and monitor

Info

Publication number: CN202351790U
Application number: CN2011204629705U
Authority: CN
Inventors: 于晓亮
Original assignee: SHENZHEN EISEN VAIL TECHNOLOGY Co Ltd
Current assignee: SHENZHEN EISEN VAIL TECHNOLOGY Co Ltd
Priority date: 2011-11-18
Filing date: 2011-11-18
Publication date: 2012-07-25
Anticipated expiration: 2021-11-18

Abstract

The utility model discloses a delay device for remotely connecting a computer and a monitor, which comprises a network cable interface, an isolation module, a physical level receiver, a converter, a universal serial bus (USB) hub, an image processing module, a high-definition multimedia interface (HDMI) signal output interface and a video graphic array (VGA) signal output interface, wherein the image processing module is connected with a memory module. The device also comprises a power module. Compared with the prior art, by the delay device, the computer can be easily connected to a display terminal on a particularly far end via the Ethernet, so that high-quality demonstration and video playing can be carried out; and the contents of the computer can be remotely accessed at the display terminal through a keyboard, a mouse and other input equipment. The display terminal can be 100m from the cable of the local area network of the computer. The delay device for remotely connecting the computer and the monitor is applicable in viewing inquiring information in schools, waiting rooms, airport lounges and the like.

Description

A kind of extension fixture that is used for long-range connection computer and display

Technical field

The utility model relates to signal connection device, relates in particular to a kind of extension fixture that is used for long-range connection computer and display.

Background technology

Existing host computer and display and input equipment (like mouse-keyboard etc.) all must be put together nearby; In some special places; Like places such as school, marquis's machine Rooms, computer need be transferred to display image and sound on the display (can be many displays) at a distance and show; The place of the abominable many dust of some environment also is difficult for installing host computer for another example.But the deficiency that is limited to prior art can't connect host computer and display and input equipment at a distance.

The utility model content

The utility model is the above-mentioned deficiency that will solve prior art, proposes the extension fixture of long-range connection computer of a kind of ability and display.

For solving the problems of the technologies described above; The technical scheme that the utility model proposes is: a kind of extension fixture that is used for long-range connection computer and display, it comprise in order to the netting twine interface that connects the transceiver network data with host computer, connect the netting twine interface isolation module, connect isolation module the physical layer transceiver of communicating by letter according to the corresponding interface agreement and host computer, is connected physical layer transceiver in order to the usb hub in order to the transmission usb data of the converter that said network data converted to usb data, connection converter, connection usb hub in order to the image processing module that usb data converted to HDMI signal and VGA signal, the HDMI signal output interface and the VGA signal output interface that are connected image processing module, be connected the memory module of image processing module and to the power module of each module for power supply.

Said usb hub connects an audio processing modules, and this audio processing modules connects an audio signal output module and a microphone load module.

Said usb hub also connects two USB interfaces in order to same host computer or keyboard or mouse connection.

Compared with prior art, the utility model can be like a cork be connected to computer on the display terminal of far-end especially through Ethernet, carries out high-quality demonstration and video playback; Also can be at display terminal through the content of input equipment remote access computers such as keyboard and mouse.Display end can reach 100 meters far away from the LAN cable distance.Be fit to school, waiting room, airport lounge etc. and locate to watch the usefulness of Query Information.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is made detailed explanation, wherein:

Fig. 1 is the theory diagram of the utility model preferred embodiment;

Fig. 2 is the application synoptic diagram of the utility model preferred embodiment;

Fig. 3 is the circuit diagram of the audio signal output module of the utility model preferred embodiment;

Fig. 4 is the netting twine interface of the utility model preferred embodiment and the circuit diagram of isolation module;

Fig. 5 is the circuit diagram of the physical layer transceiver of the utility model preferred embodiment;

Fig. 6 is the circuit diagram of the converter of the utility model preferred embodiment;

Fig. 7 is the circuit diagram of the usb hub of the utility model preferred embodiment;

Fig. 8 is the circuit diagram of the microphone load module of the utility model preferred embodiment;

Fig. 9 is the image processing module video input function district of the utility model preferred embodiment;

Figure 10 is the image processing module power management and the addressing function district of the utility model preferred embodiment;

Figure 11 is the circuit diagram of the HDMI signal output interface of the utility model preferred embodiment;

Figure 12 is the circuit diagram of the VGA signal output interface of the utility model preferred embodiment;

Figure 13 is the circuit diagram of the audio processing modules of the utility model preferred embodiment;

Figure 14 is the circuit diagram of the memory module of the utility model preferred embodiment;

Figure 15 is the circuit diagram of the USB interface of the utility model preferred embodiment;

Figure 16 is the circuit diagram of the power module of the utility model preferred embodiment.

Embodiment

The utility model discloses a kind of extension fixture that is used for long-range connection computer and display; Referring to the theory diagram shown in Fig. 1, its comprise at least in order to the netting twine interface that connects the transceiver network data with host computer, connect the netting twine interface isolation module, connect isolation module the physical layer transceiver of communicating by letter according to the corresponding interface agreement and host computer, is connected physical layer transceiver in order to the converter that said network data is converted to usb data, the usb hub that connects converter, connection usb hub in order to the transmission usb data in order to the image processing module that usb data converted to HDMI signal and VGA signal, the HDMI signal output interface and the VGA signal output interface that are connected image processing module, be connected the memory module of image processing module and to the power module of each module for power supply.

Referring to the application examples shown in Fig. 2, the computer expert crosses netting twine and connects this device, and this device is play on (televisor etc.) display terminal after with the data-switching in the netting twine.Use this device, both can control the peripherals of this device on computers, also can control on the peripherals (like keyboard and mouse) of this device and shared host computer on data; Support plug and play, easy for installation, need not mounting hardware in the host computer interface slot.Through actual measurement, the netting twine between computer and this device can reach 100 meters, and communication is still stablized unimpeded.Can also connect nearly 6 playscript with stage directions devices through router simultaneously, make the image information of same host computer on 6 display terminals, to show simultaneously.

Fig. 4 shows the netting twine interface of preferred embodiment and the circuit diagram of isolation module, and P7 is the netting twine interface of a RJ45, and this netting twine interface can be inserted the host computer that netting twine connects far-end.That be connected with P7 is isolation module (TIA), and it is network transformer that TIA is commonly called as, and the effect of isolation signals, impedance matching, network filtering is arranged.Fig. 5 shows the circuit diagram of the physical layer transceiver of preferred embodiment, and its main chip U20 is connected with TI A, between this device and the host computer is on the Ethernet protocol basis, to carry out exchanges data according to ethernet address agreement or Internet Protocol I P.Fig. 6 shows the circuit diagram of the converter of preferred embodiment, and the model of its main chip U17 is E3868M4-B, and U17 can convert network data to usb signal.U19 among Fig. 6 is the Flash 8M serial flash that connects U17.Usb signal after the conversion is transferred to the usb hub shown in Fig. 7 (U14), and the model of U14 is FE1_QFP48, and it can divide four road usb signals with one road usb signal, and wherein vision signal USBUFX_DM send image processing module.Image processing module has adopted the USB2.0 high speed image process chip UFX6000 of a high integration, and it can become HDMI signal and VGA signal imitation signal with the usb signal treatment conversion.Because the big pin of UFX6000 chip is many; In circuit diagram, come separately picture to it by functional areas, comprise U5A, U5B, U5C, U5D four parts; U5C video input function district among Fig. 9 connects U14, and the U5A among Figure 10 is each power-supplying circuit of image processor, supplies power for whole master chip.Carry out addressing between U5D and the U6, data read transmission, the U5B among Figure 11 be the output function district its connect HDMI signal output interface P1, with output HDMI signal.U5B equally also connects the VGA signal output interface P2 of Figure 12.Shown in Figure 14 is the memory module that connects image processing module, and it comprises the flash memories U9 of 512K and the storer U6 of 256-Mbit, and U9 deposits initialization data, U6 caching image data etc.

Usb hub connects an audio processing modules in preferred embodiment, and this audio processing modules connects an audio signal output module and a microphone load module.

Figure 13 shows the circuit diagram of the audio processing modules of preferred embodiment, and the model of its main chip U15 is CM108AH, and CM108AH connecting hub U14 handles audio frequency.LINEOUT_R and LINEOUT_L in the audio frequency output pin map interlinking 3 of CM108AH are through P3 output left and right acoustic channels; Audio frequency input pin map interlinking 8MIC_IN and the MIC_VBIAS of CM108AH are through P6 input microphone audio signal.

Usb hub connects two USB interfaces in preferred embodiment, and this USB interface can connect keyboard, mouse, with the data on the keyboard on the real current series device and mouse operation and control and the shared host computer.Fig. 2 has drawn the synoptic diagram of this kind application.This USB interface also can connect USB flash disk or connect host computer, can communicate by letter with host computer through the USB line.

Figure 15 has provided a kind of circuit diagram of USB interface, and P3 is a double-deck USB interface.

Figure 16 provides the circuit diagram of the power module of preferred embodiment; Its external 5V direct current, comprise with the 5V direct current be transformed to 3.3V the 3.3V change-over circuit, the 3.3V direct current is transformed to the 1.8V change-over circuit of 1.8V, the 3.3V direct current is transformed to 1.2 change-over circuits of 1.2V.

The preferred embodiments of the utility model has more than been described; But the those of skill in the art in the present technique field are to be understood that; These only illustrate, and can make numerous variations or modification to these embodiments, and not deviate from the principle and the essence of the utility model.The scope that all belongs to the utility model protection.

Claims

1. extension fixture that is used for long-range connection computer and display is characterized in that: comprise in order to the netting twine interface, the isolation module that connects the netting twine interface that connect the transceiver network data with host computer, connect isolation module the physical layer transceiver of communicating by letter according to the corresponding interface agreement and host computer, is connected physical layer transceiver in order to the converter that said network data is converted to usb data, the usb hub that connects converter, connection usb hub in order to the transmission usb data in order to the image processing module that usb data converted to HDMI signal and VGA signal, the HDMI signal output interface and the VGA signal output interface that are connected image processing module, be connected the memory module of image processing module and to the power module of each module for power supply.

2. the extension fixture that is used for long-range connection computer and display as claimed in claim 1, it is characterized in that: said usb hub connects an audio processing modules, and this audio processing modules connects an audio signal output module and a microphone load module.

3. the extension fixture that is used for long-range connection computer and display as claimed in claim 1 is characterized in that: said usb hub also connects two USB interfaces in order to same host computer or keyboard or mouse connection.