CN208971681U - DVI-ARINC818 one-channel signal R-T unit - Google Patents

Abstract

The utility model discloses a kind of DVI-ARINC818 one-channel signal R-T units, subcard is received and dispatched including one-channel signal and mating electricity turns light support plate, the one-channel signal transmitting-receiving subcard includes FPGA circuitry, one input terminal of the FPGA circuitry is connected by DVI decoding circuit with SOLC connector, and an output end of the FPGA circuitry is connected by DVI coding circuit with SOLC connector；The mating electricity turns light support plate equipped with TOLC connector, the input terminal of the TOLC connector is connected with photoelectric conversion module, the output end of the TOLC connector is connected with CPCI connector, and the SOLC connector on the one-channel signal transmitting-receiving subcard turns the TOLC connector on light support plate with mating electricity and is connected.The utility model can effectively solve the problem that the problem of DVI signal long-distance transmits poor signal quality, meet the long distance transmission requirement of vision signal under bad electromagnetic environment.

Description

DVI-ARINC818 one-channel signal R-T unit

Technical field

The utility model relates to a kind of signal transceiver more particularly to a kind of DVI-ARINC818 one-channel signal transmitting-receiving dresses It sets.

Background technique

Current DVI video signal transmission is apart from limited, it is difficult to guarantee video quality, DVI video counts after long distance transmission According to transmission using there are the following problems under long distance transmission and bad electromagnetic environment:

1.DVI video data seriously leads to video quality degradation in the decaying of long distance transmission signal；

2.DVI video data is easy under bad electromagnetic environment by outside electromagnetic interference.

In view of the above-mentioned problems, it is necessary to design a kind of subcard for mutually converting DVI data and ARINC818 standard agreement And mating electricity turns light support plate, the final equipment realizing DVI video data and optical signal and mutually being converted.

Utility model content

The technical problem to be solved by the utility model is to provide a kind of DVI-ARINC818 one-channel signal R-T unit, energy It is enough effectively to solve the problems, such as DVI signal long-distance transmission poor signal quality, meet the length of vision signal under bad electromagnetic environment away from From transmission requirement.

The utility model to solve above-mentioned technical problem and the technical solution adopted is that provide a kind of DVI-ARINC818 mono- Road signal receiving/transmission device, including one-channel signal transmitting-receiving subcard and mating electricity turn light support plate, wherein the one-channel signal receives and dispatches subcard Including FPGA circuitry, the FPGA circuitry is connected by clock cable with clock-reset circuit, and the FPGA circuitry passes through ground Location storage line is connected with FLASH circuit, and an input terminal of the FPGA circuitry passes through DVI decoding circuit and SOLC connector phase It successivelys win and takes DVI vision signal, an output end of the FPGA circuitry is connected by DVI coding circuit with SOLC connector；Institute It states mating electricity and turns light support plate equipped with TOLC connector, the input terminal of the TOLC connector is connected transmitting-receiving with photoelectric conversion module Optical signal, the output end of the TOLC connector is connected with CPCI connector receives and dispatches DVI signal, and the one-channel signal receives and dispatches subcard On SOLC connector turn the TOLC connector on light support plate with mating electricity and be connected.

Above-mentioned DVI-ARINC818 one-channel signal R-T unit, wherein another input terminal of the FPGA circuitry is logical Cross serial port circuit be connected with TOLC connector obtain serial communication signal, the TOLC connector power end connection power supply electricity Road.

Above-mentioned DVI-ARINC818 one-channel signal R-T unit, wherein the photoelectric conversion module is surface attaching type Optical-electric module, integrated optical interface and electrical interface, the optical interface are that MT-RJ type tail optical fiber connects simultaneously in the photoelectric conversion module Mouthful, it contracts in the packaging pin of the electrical interface using LCC48 packing forms.

Above-mentioned DVI-ARINC818 one-channel signal R-T unit, wherein the power end of the photoelectric conversion module and connect It is connected with electric source filter circuit between ground terminal, the use multichannel differential signal output channel of the photoelectric conversion module, every road is poor Sub-signal output channel connects 100nF coupled capacitor and 100 ohm differential impedances.

The utility model comparison prior art has following the utility model has the advantages that DVI-ARINC818 provided by the utility model is mono- Road signal receiving/transmission device, while integrated DVI input and ARINC818 light video output interface, are easy to use and improve equipment collection Cheng Du reduces mating support plate development cost, effectively solves the problems, such as that DVI signal long-distance transmits poor signal quality, meets and dislike The long distance transmission requirement of vision signal under bad electromagnetic environment.

Detailed description of the invention

The one-channel signal that Fig. 1 is the utility model DVI-ARINC818 receives and dispatches subcard circuitry block schematic diagram；

Fig. 2 is that the mating electricity of the utility model DVI-ARINC818 turns light support plate circuitry block schematic diagram；

Fig. 3 is that the photoelectric conversion module interface connection in the utility model DVI-ARINC818 one-channel signal R-T unit is shown It is intended to；

Fig. 4 is that the photoelectric conversion module peripheral circuit in the utility model DVI-ARINC818 one-channel signal R-T unit connects Connect schematic diagram.

Specific embodiment

The utility model will be further described with reference to the accompanying drawings and examples.

The one-channel signal that Fig. 1 is the utility model DVI-ARINC818 receives and dispatches subcard circuitry block schematic diagram；Fig. 2 is this reality Turn light support plate circuitry block schematic diagram with the mating electricity of novel DVI-ARINC818.

Referring to Figure 1 and Fig. 2, DVI-ARINC818 one-channel signal R-T unit provided by the utility model, including single channel Signal transmitting and receiving subcard and mating electricity turn light support plate, wherein the one-channel signal transmitting-receiving subcard includes FPGA circuitry, the FPGA electricity Road is connected by clock cable with clock-reset circuit, and the FPGA circuitry stores line by address and is connected with FLASH circuit, One input terminal of the FPGA circuitry, which is connected by DVI decoding circuit with SOLC connector, obtains DVI vision signal, described One output end of FPGA circuitry is connected by DVI coding circuit with SOLC connector；The mating electricity turns light support plate and is equipped with TOLC connector, the input terminal of the TOLC connector is connected with photoelectric conversion module receives and dispatches optical signal, the TOLC connector Output end be connected with CPCI connector transmitting-receiving DVI signal, SOLC connector on one-channel signal transmitting-receiving subcard and mating Electricity turns the TOLC connector on light support plate and is connected.

DVI-ARINC818 one-channel signal R-T unit provided by the utility model can be connect by SOLC/TOLC interface DVI video data is received, DVI video data decoding is carried out by FPGA, and convert data to standard ARINC818 protocol format, Then ARINC818 data are sent to the corresponding pin of SOLC/TOLC interface, then turning light support plate by mating electricity will ARINC818 standard electric signal is converted to optical signal；The external optical signal sended over can also be acquired by mating support plate simultaneously And ARINC818 standard electric signal is converted to, ARINC818 standard electric signal is then transmitted to by son by SOLC/TOLC interface Block FPGA, FPGA to ARINC818 standard electric signal resolution, recompile as DVI vision signal, then pass through SOLC/TOLC interface It is transmitted to support plate, realizes the output of DVI vision signal.

818 optical signal, 1 tunnel of the utility model sends 1 tunnel and receives subcard schematic diagram as shown in Figure 1,818 optical signal, 1 tunnel is sent out It send 1 tunnel to receive subcard and DVI vision signal is sent to FPGA by SOLC interface DVI vision signal and by printed board, Decoding circuit will receive DVI vision signal and be decoded and be converted into standard ARINC818 electric signal via FPGA, then pass through Printed board sends ARINC818 signal via SOLC interface；Subcard passes through after SOLC interface support plate photoelectric conversion simultaneously Signal is sent to FPGA, FPGA via printed board and passes through logical operation for ARINC818 standard electric by ARINC818 standard electric signal Signal is converted to rgb signal, is converted to standard DVI signal by DVI coding circuit, finally send via printed board to SOLC interface And complete subcard and transmitted to the signal of support plate, wherein Flash is for storing FPGA loading procedure, when 818 transmission subcards power on, The FPGA program stored in Flash is automatically loaded into FPGA, makes FPGA according to program setting content efforts.

Continuing with referring to fig. 2, the mating support plate of the utility model sends 1 tunnel with 818 optical signal, 1 tunnel by TOLC interface and connects It receives the corresponding SOLC interface of subcard to be attached, DVI vision signal of the mating support plate by CPCI interface from outside, and It is sent to TOLC interface by printed board, and is ultimately transmitted 818 optical signal, 1 tunnel and sends 1 tunnel reception subcard, 818 optical signal, 1 tunnel 1 tunnel reception subcard is sent the standard ARINC818 electric signal after conversion is sent to TOLC interface and turns the print of light support plate by electricity Making sheet is ultimately routed to optical module, and standard ARINC818 electric signal is converted to optical signal by optical module；Conversely, optical module can also be with It acquires from external ARINC818 optical signal and converts optical signals to ARINC818 standard electric signal, then pass through printed board ARINC818 standard electric signal is transmitted to TOLC connector, signal is sent to 818 optical signal, 1 tunnel and sends 1 tunnel reception subcard, 818 optical signal, 1 tunnel, which sends 1 tunnel and receives subcard, is sent to TOLC interface for the DVI signal after conversion, and support plate receives after data again DVI signal is sent to CPCI interface by printed board.

DVI-ARINC818 one-channel signal R-T unit provided by the utility model, photoelectric conversion module have used surface patch Dress type optical-electric module, the photoelectric conversion module are integrated with optical interface and electrical interface simultaneously, and optical interface uses MT-RJ type tail optical fiber interface 1 electrical interface has used LCC48 packing forms, and LCC series packaging pin inside contracts, as shown in Figure 3；Reduce face occupied by chip Product, integration capability further increase.It is connected with electric source filter circuit between the power end and ground terminal of the photoelectric conversion module, The use multichannel differential signal output channel of the photoelectric conversion module, every road differential signal output channel connection 100nF coupling Capacitor and 100 ohm differential impedances, preferably peripheral circuit are as shown in figure 4, to preferably avoid being easy under bad electromagnetic environment It is influenced by outside electromagnetic interference.

Although the utility model is disclosed as above with preferred embodiment, so it is not intended to limit the utility model, any Those skilled in the art, without departing from the spirit and scope of the utility model, when can make a little modification and it is perfect, therefore this The protection scope of utility model, which is worked as, to be subjected to the definition of the claims.

Claims (4)

1. a kind of DVI-ARINC818 one-channel signal R-T unit, including one-channel signal transmitting-receiving subcard and mating electricity turn light support plate, It is characterized in that, the one-channel signal transmitting-receiving subcard includes FPGA circuitry, the FPGA circuitry passes through clock cable and clock Reset circuit is connected, and the FPGA circuitry stores line by address and is connected with FLASH circuit, an input of the FPGA circuitry End, which is connected by DVI decoding circuit with SOLC connector, obtains DVI vision signal, and an output end of the FPGA circuitry passes through DVI coding circuit is connected with SOLC connector；The mating electricity turns light support plate equipped with TOLC connector, the TOLC connector Input terminal be connected with photoelectric conversion module transmitting-receiving optical signal, the output end of the TOLC connector is connected receipts with CPCI connector DVI signal is sent out, the SOLC connector and mating electricity on the one-channel signal transmitting-receiving subcard turn the TOLC connector phase on light support plate Even.

2. DVI-ARINC818 one-channel signal R-T unit as described in claim 1, which is characterized in that the FPGA circuitry Another input terminal, which is connected by serial port circuit with SOLC connector, obtains serial communication signal, the power supply of the SOLC connector End connection power circuit.

3. DVI-ARINC818 one-channel signal R-T unit as described in claim 1, which is characterized in that the photoelectric conversion mould Block is surface attaching type optical-electric module, integrates optical interface simultaneously in the photoelectric conversion module and electrical interface, the optical interface are MT-RJ type tail optical fiber interface contracts using LCC48 packing forms in the packaging pin of the electrical interface.

4. DVI-ARINC818 one-channel signal R-T unit as claimed in claim 3, which is characterized in that the photoelectric conversion mould Electric source filter circuit is connected between the power end and ground terminal of block, the use multichannel differential signal of the photoelectric conversion module is defeated Channel out, every road differential signal output channel connection 100nF coupled capacitor and 100 ohm differential impedances.