CN205246317U

CN205246317U - Sdi signal generator

Info

Publication number: CN205246317U
Application number: CN201520963022.8U
Authority: CN
Inventors: 马健
Original assignee: LUOYANG RUIGUANG MOVIE-TV OPTIC-ELECTRONIC TECHNOLOGY Co Ltd
Current assignee: LUOYANG RUIGUANG MOVIE-TV OPTIC-ELECTRONIC TECHNOLOGY Co Ltd
Priority date: 2015-11-26
Filing date: 2015-11-26
Publication date: 2016-05-18
Anticipated expiration: 2025-11-26

Abstract

Must adopt extras to realize the defect of different test demands for overcoming current SDI signal generator, the utility model provides a SDI signal generator adopts MCU+FPGA's circuit structure, and this FPGA (1) is connected with MCU (2), clock oscillator (3), power (4), ROM (5) and DDR (6) respectively, this MCU (2) as control module, in realizing, the external signal communication, is connected with FPGA (1), USB1 port (7), USB2 port (8), local grid side mouth (9) and button (10) respectively. Borrow by above -mentioned technical scheme, the utility model relates to a SDI signal generator only needs one and just can accomplish: the test of signal production - monitor, monitor colour correction (cooperation PC end software), load 3D -LUT colour correction data, load da fenqi software generate the function of cube file and load user defined model picture, the highest SDI signal input output of accomplishing 2.97Gbps does not need to adopt extra equipment again, realizes integrative many demands.

Description

Sdi signal generator

Technical field

The utility model relates to a kind of sdi signal generator (also claiming loader), in particular, be a kind of by withARM is that the MCU of kernel is that control program completes inside and outside communication and usb data reads and Local network communication, and passes throughFPGA circuit and corresponding IP complete the monitor display effect that is applied to of video, image data analysis and input and output and surveyExamination, the signal generator of adjusting.

Background technology

Current sdi signal generator is divided into two classes, and first kind major function is: generation or user control product automaticallyRaw various resolution chart signals are exported to the monitor with SDI interface by sdi signal interface. Monitor passes through SDIAfter interface access resolution chart, be presented on screen, in order to assess the display effect of monitor; Equations of The Second Kind major function is for logicalCross external computer software control and produce resolution chart, or load 3D-LUT toning data.

Current sdi signal generator, primary problem is function singleness, described in above-mentioned two classes. And at presentThe judgement more and more Composite of people to sdi signal, SDI interface monitor.

At present the test adjustment demand of sdi signal or SDI interface monitor is mainly contained to following a few class:

1, the SDI interface testing of monitor, signal generator automatically or user at this hands-operation of signal generatorThe machine SDI interface output test signal is shown to monitor. User passes through naked eyes or certain testing equipment,Display effect is assessed, judged the display performance of monitor;

2, signal generator, by the control of computer, produces test signal, sends test letter by the SDI interface of selfNumber show to monitor. User, by naked eyes or certain testing equipment, assesses display effect, judgementThe display performance of monitor;

3, signal generator loads the data (as csv file) that 3D-LUT color is adjusted, and is used for revising monitorDisplay performance, reaches monitor color or approaches certain color standard (as REC709);

4, signal generator loads the art up color data (cube file) that " Leonardo da Vinci " software is produced, and is used for changingBecome the display effect of monitor, thereby realize some art up image expressions.

Current sdi signal generator all can only complete above function wherein one or both, this is to current movie and television playFloor toning work is very inconvenient. Especially load data or Leonardo da Vinci cube that 3D-LUT color is adjustedWhen file, existing product all will load by computer, inconvenient operation, if there is no the floor of computer,Have no idea to load the work of these data.

When a monitor of assessment, there are main, objective two aspects. The mark that objective aspects adopts signal generator to produceCalibration signal and by exterior color analytical equipment (as: Konica. the CA310 of Minolta) analyze data; Subjective aspect,Allow monitor input general picture or the video image content of user oneself definition (as: personage, the landscape etc.), butOverwhelming majority sdi signal generators are not possess to load or preserve image content function that client user oneself defines,This just means, must prepare extra equipment, very inconvenient, also increases workload.

Summary of the invention

The purpose of this utility model is, overcomes existing sdi signal generator and must adopt extras to realize different surveyThe defect of examination demand, and the sdi signal generator of a whole process is proposed, technical problem to be solved is at oneColour correction, the 3D-LUT correction data that in this sdi signal generator, just can complete monitor load and Leonardo da Vinci simultaneouslySoftware cube file loads.

The purpose of this utility model and to solve its technical problem be to realize by the following technical solutions. New according to this practicalityA kind of sdi signal generator that type proposes, adopts the circuit structure of MCU+FPGA, this FPGA (1) respectively with MCU (2),Clock oscillator (3), power supply (4), ROM (5) and DDR (6) are connected; This MCU (2) is as controlling mouldPiece, realizes inside and outside portion signal and communication, respectively with USB1 port (7), USB2 port (8), lan port (9)And button (10) is connected.

The purpose of this utility model and solve its technical problem and also adopt following technical measures further to realize.

Aforesaid sdi signal generator, described FPGA (1) is connected with MCU (2) by spi bus.

Aforesaid sdi signal generator, described USB1 port (7) is MINI-B type USB port, described USB2Port (8) is TYPE-A type USB port.

Aforesaid sdi signal generator, described USB1 port (7) is TYPE-A type USB port, described USB2Port (8) is MINI-B type USB port.

Aforesaid sdi signal generator, described lan port (9) is RJ-45 lan port.

Aforesaid sdi signal generator, described button (10) is provided with 5, be respectively " SMPTE " key (101)," LUT1 " key (102), " LUT2 " key (103), " LUT3 " key (104) and " LOCK " key (105).

By technique scheme, a kind of sdi signal generator of the utility model only needs one just can complete: signal producesLife-monitor test, monitor colour correction (coordinating PC end software), load 3D-LUT color correction data, addCarry Leonardo da Vinci's Software Create cube file and load the function of User Defined picture; The highlyest complete 2.97Gbps'sSdi signal input and output, do not need to adopt extra equipment again, realize the many demands of one.

In sum, a kind of sdi signal generator of the utility model can use the liter of USB flash disk load signal generator selfLevel software, and coordinate signal generator button to complete the software upgrading renewal to self, do not computerize; Can use UDish loads 3D-LUT color correction data, and coordinates signal generator button that 3D-LUT color correction data is read in to signalGenerator, thus the colour correction of monitor completed, do not computerize; Can use USB flash disk to load Leonardo da Vinci's software or itsThe cube file that his source produces, and coordinate signal generator button that Leonardo da Vinci's software cube file is read in to signal generationDevice, thus the colour correction of monitor completed, do not computerize; Can use USB flash disk to load the picture of client oneself definition.

Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to better understand technology of the present utility modelMeans, and can be implemented according to the content of description, and for allowing above and other object of the present utility model, featureCan become apparent with advantage, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, be described in detail as follows.

Brief description of the drawings

Fig. 1 is the functional circuit of a kind of sdi signal generator of the utility model.

Fig. 2 A is the front view in kind of a kind of sdi signal generator of the utility model.

Fig. 2 B is the left view in kind of a kind of sdi signal generator of the utility model.

Fig. 2 C is the right view in kind of a kind of sdi signal generator of the utility model.

Fig. 3 is the first embodiment of the utility model product application.

Fig. 4 is the second embodiment of the utility model product application.

Fig. 5 is the 3rd embodiment of the utility model product application.

Detailed description of the invention

Technological means and effect of taking for reaching predetermined goal of the invention for further setting forth the utility model, belowBy reference to the accompanying drawings and preferred embodiment, to a kind of its detailed description of the invention of sdi signal generator according to the utility model proposes,Structure, feature and effect thereof, be described in detail as follows.

Refer to Fig. 1, a kind of sdi signal generator of the utility model, the circuit structure of employing MCU+FPGA, MCUAs control circuit, realize the control signal communication of inside and outside portion. In this FPGA1, prestore digital video signal pattern andForm, separates serializer circuit by SDI input port 11, SDI input and receives signal, by SDI driver, SDI outputThe signal that port one 3 outputs are specified. This signal generator also comprises MCU2, clock oscillator 3, is FPGA and otherThe power supply 4 of chip power supply and multiple ROM (read-only storage) 5, multiple DDR (synchronous DRAM) 6, all withFPGA1 is connected. MCU2 is also connected with USB1 port 7, USB2 port 8, lan port 9, button 10.

Preferably, described FPGA1 is connected with MCU2 by spi bus.

Preferably, described USB1 port 7 is MINI-B type USB port, and this port is by usb data line and computerCommunication, the signal generator the utility model proposes for computer control produces the signal of specifying or loads relevant number of filesAccording to.

Preferably, described USB2 port 8 is TYPE-A type USB port, and this port passes through to insert USB flash disk, thereby readsData or the file of getting specified format in USB flash disk load data or carry out software liter the signal generator the utility model proposesLevel. This signal generator can also deposit the picture file of specified format in inside by TYPE-A type USB port simultaneously,Being transferred to external monitor by SDI output port 13 shows.

Preferably, described lan port 9 is RJ-45 lan port, the utility model proposes for computer controlSignal generator produce the signal of specifying or load associated documents, data.

Preferably, refer to Fig. 2 A, Fig. 2 B and Fig. 2 C, the sdi signal generator main body the utility model proposesLeft surface is laid with lan interfaces 9, SDI ring outbound port 12 and SDI input port 11, and its right flank is laid with DC-12VInterface 14, USB1 port 7, USB2 port 8 and the SDI output port 13 of power supply, its end face is laid with multiple buttons10. Described button 10 is for controlling the operation of above-mentioned functions:

" SMPTE " key 101, short in (being less than 2 seconds), SDI output port 13 is exported 57650i---108050iForm resolution chart; Long by (being greater than 3 seconds), selecting SDI input port 11 is input signal source;

" LUT1 " key 102, short by (being less than 2 seconds) selected and switch LUT1, longly read USB flash disk by (being greater than 3 seconds)The 3D-LUT file of interior storage;

" LUT2 " key 103, short by (being less than 2 seconds) selected and switch LUT2, longly read USB flash disk by (being greater than 3 seconds)The picture of interior storage or FPGA program;

" LUT3 " key 104, short by (being less than 2 seconds) selected and switch LUT3, long by (being greater than 3 seconds) saved systemArrange;

" LOCK " key 105, short in (being less than 2 seconds) SMPTE picture, the switching of user's picture, long by (being greater than 3 seconds)Locking/unlocking keypress function.

Referring to Fig. 3, is the first embodiment of the utility model product application, computer expert cross usb data line respectively withSdi signal generator, monitor are connected, and this signal generator is delivered to monitor by SDI interface by SDI video.In the time of operation, computer expert crosses USB and sends related command (data or file loading, software upgrading) to this signal generator,After this signal generator analysis order, export corresponding resolution chart, monitor is carried out to color test analysis, generate color schoolCorrection data.

Refer to Fig. 4, for the second embodiment of the utility model product application, apply in this sdi signal generator3D-LUT color correcting method, load store is in other memory devices such as computer, DVD player, video camera or video cameraColor correction data, can realize the standardization of monitor display color or reach certain i.e. fixed display effect.

Refer to Fig. 5, for the 3rd embodiment of the utility model product application, USB flash disk is inserted to this sdi signal generatorThe second USB port 8 in. In the situation that not having computer to send order, this sdi signal generator can produce SMPTETest, and with SD or high-definition format output; Can read test picture in outside USB flash disk is kept at this sdi signal and sends outIn raw device, and can in USB flash disk or the test picture being kept in this sdi signal generator send to prison by SDI videoVisual organ, tests monitor.

The above, be only preferred embodiment of the present utility model, and any those skilled in the art are notDepart within the scope of technical solutions of the utility model, foundation technical spirit of the present utility model is to made for any of the above embodiments anySimple modification, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.

Claims

1. a sdi signal generator, is characterized in that: adopt the circuit structure of MCU+FPGA, this FPGA (1)Be connected with MCU (2), clock oscillator (3), power supply (4), ROM (5) and DDR (6) respectively; This MCU(2) as control module, realize inside and outside portion signal and communication, respectively with USB1 port (7), USB2 port (8),Lan port (9) and button (10) are connected.

2. sdi signal generator according to claim 1, is characterized in that: described FPGA (1) passes through SPIBus is connected with MCU (2).

3. sdi signal generator according to claim 1, is characterized in that: described USB1 port (7) isMINI-B type USB port, described USB2 port (8) is TYPE-A type USB port.

4. sdi signal generator according to claim 1, is characterized in that: described USB1 port (7) isTYPE-A type USB port, described USB2 port (8) is MINI-B type USB port.

5. sdi signal generator according to claim 1, is characterized in that: described lan port (9)For RJ-45 lan port.

6. sdi signal generator according to claim 1, is characterized in that: described button (10) is provided with 5Individual, be respectively " SMPTE " key (101), " LUT1 " key (102), " LUT2 " key (103), " LUT3 "Key (104) and " LOCK " key (105).