CN102833467A - Broadcast-quality monitor and monitoring image generating method thereof - Google Patents
Broadcast-quality monitor and monitoring image generating method thereof Download PDFInfo
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Abstract
The invention discloses a broadcast-quality monitor and a monitoring image generating method thereof. The broadcast-quality monitor comprises a display screen, a display module, an SDI (Serial Digital Interface) signal processing module and a TALLY host; and the TALLY host further comprises a receiving module, a channel signal processing module and a combining module. With the adoption of the structure, in a process of displaying UMD (Ultra Mobile Devices), TALLY information and SDI information on the same display screen, not only can a video be monitored, but also channel label information and a program playing state can be monitored, so that the one-step display process is realized. Therefore, the use of extra UMD and the TALLY system equipment can be avoided; the equipment investment is reduced; the investment cost is reduced; the space occupied by the monitoring equipment is reduced; the broadcast-quality monitor has the advantages of ordered appearance, simple structure, convenience in monitoring and flexibility in operation; and the broadcast-quality monitor can be widely applicable to a broadcast television field.
Description
Technical field
The present invention relates to a kind of broadcast quality monitor, particularly a kind of with UMD function and incorporate broadcast quality monitor of TALLY Presentation Function and monitoring picture generation method thereof, belong to field of broadcast televisions.
Background technology
Broadcast quality monitor is the monitor of first water, and its technical requirement is very high, and must possess the access way of component video signal, just can provide first water and the most accurate video to show.Broadcast quality monitor generally adopts SDI serial digital video interface at present, comprises the SD-SDI of single-definition, the HD-SDI and the 3G-SDI of high definition, as professional component video signal access way.
The TALLY system is the important component part in the studio system, and it is a miscellaneous function property system.Now on the market, because monitor can't support both to have shown TV signal, show UDM and TALLY content again, make the TALLY system overlap independently system.Wherein, The content of TALLY appears on the system nodes such as camera head, video camera view-finder and video wall with the form of character or indicator light usually; Point out for respectively host, shooting and studio producer; What PGM and PST signal that the current video cut bank of announcement is cut out be, through visual cues, coordinate the staff in each each post, in time understands the state of progress of program.The UMD function is station symbol and follows function, reads matrix or cut bank crosspoint information through serial ports, and crosspoint information and " parent name is followed tabulation " are compared, and informs that the UMD driver renames the UMD display unit of corresponding address to corresponding result at last.And mainly form by switching main frame and UMD display device; It is communicated by letter with matrix controller or cut bank through switching main frame; Switch in the crosspoint of real-time response matrix, drives the parent name that the UMD display device dynamically shows current input signal simultaneously, and represent the state of TALLY with the warning light of different colours; Coordinate the staff in each post through visual cues, in time understand the state of progress of program.Concrete means are: on every monitor, install a LED display additional and show UMD information and TALLY information.Like this way has not only strengthened the volume of monitor, in assembling, has also increased certain trouble, especially in the assembling of video wall, has improved the difficulty of assembling especially, has increased the space hold rate.Perform in a radio or TV programme the Room at radio and television, tens up to a hundred monitor is arranged usually, every monitor all adds loads onto LED display, has taken sizable space, has increased a lot of costs.
How to break away from this rough sledding, improve UMD information and TALLY information display system, want the problem that solves with regard to becoming the present invention.
Summary of the invention
In view of the deficiency of above-mentioned prior art, the present invention aims to provide a kind of generation method with UMD function and incorporate broadcast quality monitor of TALLY Presentation Function and monitoring picture thereof, with simplified structure, reduces cost, and improves to show flexibility.
Technical scheme of the present invention is following:
A kind of broadcast quality monitor comprises display screen, display module and sdi signal processing module, and the sdi signal processing module is used for the sdi signal of treatment channel input; Display module is used to drive the demonstration that display screen is handled back information, also comprises:
The TALLY main frame, the TALLY main frame comprises receiver module, channel signal processing module and synthesis module.
Receiver module is used for the channel signal and the sdi signal of receiving front-end matrix or cut bank, and sends in corresponding sdi signal processing module and the channel signal processing module.
The channel signal processing module presets the passage and the station symbol information of producer's communication protocol and matrix or cut bank, converts the channel signal that receives to corresponding UMD information and TALLY state information according to preset information through the OSD technology.
Synthesis module synthesizes sdi signal and the osd information after handling, and forms to send to display module behind the same image information and show.
Said receiver module comprises RS232 receiver module, RS485 receiver module, network interface receiver module and UART receiver module.
Said channel signal processing module comprises:
Signal processing module presets the passage and the station symbol information of producer's communication protocol and matrix or cut bank, and the channel information and the preset information that receive are compared, and forms correspondingly input signal channel and station symbol information, and definite rear end display screen address information.
Signalling channel and station symbol information that the OSD generation module is confirmed according to signal processing module generate corresponding station symbol character picture through the OSD technology, and corresponding control change station symbol character picture color.
Control module is used for the coordination control of signal processing module and OSD generation module, and passage and the station symbol information that presets producer's communication protocol and matrix or cut bank is detected.
Said signal processing module comprises:
The device protocol module is used to be provided with the producer and the communication protocol thereof of front end matrix or cut bank.
Passage station symbol list block presets passage corresponding with matrix or cut bank and station symbol information according to agreement.
TALLY state read module is used to identify the TALLY state information after reading.
Said OSD generation module comprises:
Station symbol character generation module generates corresponding station symbol character picture according to signalling channel and station symbol information.
Station symbol character color conversion module is according to the color of the corresponding conversion station symbol of TALLY state information character picture.
A kind of monitoring picture generation method of broadcast quality monitor; Comprise: utilize the TALLY main frame that is installed in the broadcast quality monitor directly to receive signal from front end matrix or cut bank output; Form sdi signal and osd information after treatment respectively, ECDC is shaped as same image information and is presented on the display screen again.Osd information comprises UMD information and TALLY state information.
A kind of monitoring picture generation method of broadcast quality monitor, concrete steps comprise:
Control module in the step 1 TALLY main frame is at first judged passage and the station symbol information that whether presets producer's communication protocol and matrix or cut bank in the system, otherwise, need at first insert or whether the detection at any time system front end has facility information and preservation.
The step 2 receiver module sends in sdi signal processing module and the channel signal processing module the channel signal of front end matrix that receives or cut bank is corresponding with sdi signal.
Step 3 channel signal processing module is searched the channel information tabulation of the communication protocol that presets and matrix or cut bank according to facility information; Find station symbol information according to tabulation; And utilize the OSD technology to generate corresponding station symbol character picture; Then, confirm the color of station symbol character picture according to the TALLY reading state; Simultaneously, the sdi signal processing module is accomplished the processing to sdi signal.
Picture after the step 4 synthesis module is handled station symbol character picture and sdi signal synthesizes same picture, outputs on the display screen, accomplishes UMD information and TALLY state information and the demonstration of SDI picture while on display screen.
In the said step 3; The channel signal processing module is at first coordinated the control signal processing module through control module the channel information and the preset information that receive is compared; Form correspondingly input signal channel and station symbol information, and determine rear end display screen address information; Then, passage and station symbol information are generated corresponding station symbol character picture through the OSD generation module, and control change character picture color, the sign of completion TALLY state information.Wherein, The producer and the communication protocol thereof of front end matrix or cut bank are set through the device protocol module in the signal processing module; According to this agreement; Preset passage corresponding and station symbol information through passage station symbol list block, and the sign of utilizing TALLY state read module to accomplish the TALLY state information reads with matrix.Through station symbol character generation module passage and station symbol information are generated corresponding station symbol character picture in the OSD generation module, and according to the TALLY state information, through the corresponding conversion station symbol of station symbol character color conversion module character picture color.
In the said step 4, when the station symbol character need be superimposed upon on the SDI image, synthesis module extracted character data and the positional information on the station symbol character picture, and the view data of the point on the replacement SDI image frame relevant position generates new view data output.Or; When the station symbol character need translucently be superimposed upon on the SDI image; After synthesis module calculates the pixel data of the SDI video image of the pixel data of station symbol character picture and correspondence position respectively and carries out the brightness adjustment; Through stack adjusted station symbol character picture and SDI picture signal are superposeed again, form new view data and export.
Broadcast quality monitor of the present invention and monitoring picture generation method thereof provide a kind of UMD of having function and the TALLY identification and the broadcast quality monitor of Presentation Function, have realized the process that UMD and TALLY information and sdi signal show on same display screen; In to video monitor, realized supervision to station symbol information and playing programs state, easy to use, simple; Control flexibly, simultaneously, the procedure for displaying that settles at one go; Also avoided use, reduced the equipment input, reduced input cost extra UMD and TALLY system equipment; Dwindled the surveillance equipment occupation space, have outward appearance neat, simple in structure, monitor advantage easily.
Description of drawings
Fig. 1 is the structural representation block diagram of a kind of broadcast quality monitor of the present invention;
Fig. 2 is the system block diagram of the monitoring picture generation method of broadcast quality monitor according to the invention.
Embodiment
1 couple of the present invention is described in further detail below in conjunction with accompanying drawing:
A kind of broadcast quality monitor of the present invention comprises display screen 9, display module 8, sdi signal processing module 2 and TALLY main frame.The TALLY main frame is positioned at broadcast quality monitor, and the TALLY main frame comprises receiver module 1, channel signal processing module 3 and synthesis module 7.Channel signal processing module 3 comprises signal processing module 6, OSD generation module 5 and control module 4; Wherein, Signal processing module 6 comprises device protocol module 11, passage station symbol list block 12 and TALLY state read module 13 again, and OSD generation module 5 comprises station symbol character generation module 14 and station symbol character color conversion module 15.Channel signal processing module 3 is responsible for presetting the passage and the station symbol information of producer's communication protocol and matrix or cut bank as the main processing module of TALLY main frame; And convert the channel signal that receives to corresponding UMD information and TALLY state information according to preset information through the OSD technology, to satisfy the supervision needs of broadcast quality monitor.Concrete each functions of modules is:
Receiver module 1; The channel signal and the sdi signal that are used for receiving front-end matrix or cut bank; And send in sdi signal processing module 2 and the channel signal processing module 3 signal that receives is corresponding, accomplish the processing respectively of sdi signal and channel signal, for synthesizing, the signal in later stage prepares.Receiver module 1 comprises RS232 receiver module, RS485 receiver module, network interface receiver module and UART receiver module; Wherein, Connect through the RS485 interface in the RS485 receiver module between each display screen and communicate by letter, other interfaces are in order to adapt to the communication needs of different manufacturers, different model headend equipment.Adopt the communication interface of RS485 as display screen, maximum configurable 265 display screens, and can realize the distant signal transmission.
Channel signal processing module 3 comprises signal processing module 6, OSD generation module 5 and control module 4.Signal processing module 6 is used to preset the passage and the station symbol information of producer's communication protocol and matrix or cut bank; And channel information that receives and preset information compared; Form correspondingly input signal channel and station symbol information, simultaneously, determine rear end display screen address information.Generate corresponding station symbol character picture after signalling channel that OSD generation module 5 is confirmed signal processing module 6 through the OSD technology and the station symbol information translation; And corresponding control change station symbol character picture color; To represent the operating state of different passages; Remind host, shooting and studio producer to note the video image that the current video cut bank is cut out, guarantee broadcast quality.4 of control modules are used for the coordination control of signal processing module 6 and OSD generation module 5; And passage and the station symbol information that presets producer's communication protocol and matrix or cut bank detected and receives storage; After confirming to have had producer's communication protocol and matrix or cut bank information, coordinate signal processing module 6 and start working with OSD generation module 5.Wherein, comprise device protocol module 11, passage station symbol list block 12 and TALLY state read module 13 in the signal processing module 6.Device protocol module 11 is used to be provided with the producer and the communication protocol thereof of front end matrix or cut bank, makes the signal of different manufacturers transmit and can carry out smoothly.Passage station symbol list block 12 presets passage corresponding with matrix or cut bank and station symbol information then according to built-in agreement, and the assurance port number is unique corresponding with station symbol information, realizes the accurate, reliable, quick of station symbol information extraction.TALLY state read module 13 is used to identify the TALLY state information after reading, to mark the port number that is using.And OSD generation module 5 comprises station symbol character generation module 14 and station symbol character color conversion module 15.Station symbol character generation module 14 can generate corresponding station symbol character picture according to signalling channel and the station symbol information that signal processing module 6 produces, and makes the station symbol character picture consistent with the SDI image attributes, for last composograph is prepared.15 colors of station symbol character color conversion module according to the corresponding conversion station symbol of TALLY state information character picture; Reflect the video image that the current video cut bank is cut out through simple colour switching; Realize its indication effect, guarantee the personnel's of all departments co-ordination host, shooting and studio producer.
Sdi signal processing module 2 is used for the sdi signal of treatment channel input, forms the SDI picture signal.
Synthesis module 7 is responsible for sdi signal and osd information after handling are synthesized, and sends to display module 8 after forming same image information.
Display module 8 is used to drive the demonstration that display screen 9 synthesizes back information, and the same screen of accomplishing SDI picture, UMD information and TALLY information shows, guaranteed the broadcast quality monitor monitoring process comprehensively, convenient, flexibly.
Do further detailed description to the monitoring picture generation method of broadcast quality monitor of the present invention below:
The monitoring picture generation method of broadcast quality monitor of the present invention; Saying of summarizing comprises: the TALLY main frame that its utilization is installed in the broadcast quality monitor directly receives the signal from front end matrix or cut bank output; After handling respectively, form sdi signal and osd information, osd information comprises UMD information and TALLY state information, after synthesizing, forms same image information again and is presented on the display screen; Realized the process that monitor message shows simultaneously in the video switch process on a display screen; Avoided needing to be equipped with in addition the LED screen in the past and carried out the demonstration of relevant information, simplified device structure, improved demonstration and prompting effect.As shown in Figure 2; For the present invention in system during application drawing; Broadcast quality monitor 21 has comprised the function of TALLY main frame interior; Signal by 22 outputs of matrix or cut bank directly inserts after converting sdi signal and osd information in the broadcast quality monitor 22, is settled at one go reading of completion UMD and TALLY state and is shown by monitor.
Concrete image generates step and comprises:
Control module in the step 30TALLY main frame is at first judged passage and the station symbol information that whether presets producer's communication protocol and matrix or cut bank in the system; Whether otherwise need at first insert front-end information or detection at any time system front end has facility information and carries out message pick-up and preservation.
Step 40 receiver module sends in sdi signal processing module and the channel signal processing module the channel signal of front end matrix that receives or cut bank is corresponding with sdi signal.
Step 50 channel signal processing module is searched the channel information tabulation of the communication protocol that presets and matrix or cut bank according to facility information; Find station symbol information according to tabulation; And utilize the OSD technology to generate corresponding station symbol character picture; Then, confirm the color of station symbol character picture according to the TALLY reading state; Simultaneously, the sdi signal processing module is accomplished the processing to sdi signal.
Above-mentioned steps 50 specifically comprises:
In the step 501 channel signal processing module, at first coordinate the control signal processing module channel information and the preset information that receive are compared, form correspondingly input signal channel and station symbol information, and determine rear end display screen address information through control module.
Wherein, The producer and the communication protocol thereof of front end matrix or cut bank are set through the device protocol module in the signal processing module; According to this agreement; Preset passage corresponding and station symbol information through passage station symbol list block, and the sign of utilizing TALLY state read module to accomplish the TALLY state information reads with matrix.
Certainly, in the power up, whether control module at first presets the passage and the station symbol information of producer's communication protocol and matrix or cut bank in judgment device protocol module and the passage station symbol list block, can carry out smoothly to guarantee the further channel comparison process.
In the step 502 channel signal processing module, passage and station symbol information are generated corresponding station symbol character picture through the OSD generation module, and control change character picture color, the sign of completion TALLY state information.
Wherein, Through station symbol character generation module passage and station symbol information are generated corresponding station symbol character picture in the OSD generation module; Make the station symbol character picture and can show that the SDI image attributes is consistent; And according to the TALLY state information, through the corresponding conversion station symbol of station symbol character color conversion module character picture color, through the current monitor status of the colour switching prompting staff of all departments.
For example: headend equipment is: the NVision matrix
Be provided with in advance: the NVision control protocol
The matrix input signal:
Passage 1:CCTV1; Passage 2:CCTV2; Passage 3:CCTV4;
Monitor: 001:UMD, TALLY; 002:UMD, TALLY;
003：TALLY；004：TALLY；
Wherein, corresponding address is that 001,002 monitor is provided with UMD and TALLY function, and other then only are provided with the TALLY function.After monitor powered on, receiver module received the channel information that the front end matrix sends, and found corresponding station symbol information according to information; As, now address number is that 001 monitor powers on, it receives signal for broadcasting first via input signal; According to preset information be: the corresponding informance of " CCTV 1, redness ", the character of the CCTV 1 of OSD exhibit red on the monitor; When broadcasting signal switches to the four road input signal, monitor receives: the corresponding informance of " CCTV 4, redness "; Monitor also switches to the OSD character character of red CCTV4 at once, thereby accomplishes the conversion of corresponding osd information.
Picture after step 60 synthesis module is handled station symbol character picture and sdi signal synthesizes same picture, outputs on the display screen, accomplishes UMD information and TALLY state information and the demonstration of SDI picture while on display screen.
Wherein, when the station symbol character need be superimposed upon on the SDI image, synthesis module extracted character data and the positional information on the station symbol character picture, and the view data of the point on the replacement SDI image frame relevant position is exported, shown thereby generate new view data.For example: when showing the simulation character of 10*10 pixel; At first; Calculating the character that need write will show on the point where, preserves the image of input signal more than 2 frames earlier, directly replaces the data of original image at this point to the data of the point of wanting characters displayed; Output then, the image of the character that promptly obtains having superposeed.
When the station symbol character need translucently be superimposed upon on the SDI image; Synthesis module calculates the pixel data of the SDI video image of the pixel data of station symbol character picture and correspondence position respectively and carries out the brightness adjustment; Mode through stack superposes adjusted station symbol character picture and SDI picture signal again, exports, shows thereby under synthetic state, form new view data.
For example: the color value of each point of image has three: R (red), G (green), B (indigo plant) that is to say that the color of view data itself does not have transparent value.Color value like the bottom layer image point is R=30; G=80; B=255, the color value of this point on the upper strata relative with it is R=55; G=129; B=80 is 80% if transparency is set, and the color value of then new point may be calculated:
If R=30*20%+55*80% obtains decimal, just round
If G=80*20%+129*80% obtains decimal, just round
If B=255*20%+80*80% obtains decimal, just round
So just obtained the new color value behind the translucent effect, shown by new color value to get final product.
Claims (10)
1. a broadcast quality monitor comprises display screen, display module and sdi signal processing module, and said sdi signal processing module is used for the sdi signal of treatment channel input; Said display module is used to drive the demonstration that display screen is handled back information, it is characterized in that also comprise the TALLY main frame, said TALLY main frame comprises receiver module, channel signal processing module and synthesis module;
Receiver module is used for the channel signal and the sdi signal of receiving front-end matrix or cut bank, and sends in corresponding sdi signal processing module and the channel signal processing module;
The channel signal processing module presets the passage and the station symbol information of producer's communication protocol and matrix or cut bank, converts the channel signal that receives to corresponding UMD information and TALLY state information according to preset information through the OSD technology;
Synthesis module synthesizes sdi signal and the osd information after handling, and forms to send to display module behind the same image information and show.
2. a kind of broadcast quality monitor according to claim 1 is characterized in that, said receiver module comprises RS232 receiver module, RS485 receiver module, network interface receiver module and UART receiver module.
3. a kind of broadcast quality monitor according to claim 1 is characterized in that, said channel signal processing module comprises:
Signal processing module presets the passage and the station symbol information of producer's communication protocol and matrix or cut bank, and the channel information and the preset information that receive are compared, and forms correspondingly input signal channel and station symbol information, and definite rear end display screen address information;
Signalling channel and station symbol information that the OSD generation module is confirmed according to signal processing module generate corresponding station symbol character picture through the OSD technology, and corresponding control change station symbol character picture color;
Control module is used for the coordination control of signal processing module and OSD generation module, and passage and the station symbol information that presets producer's communication protocol and matrix or cut bank is detected.
4. a kind of broadcast quality monitor according to claim 3 is characterized in that, said signal processing module comprises:
The device protocol module is used to be provided with the producer and the communication protocol thereof of front end matrix or cut bank;
Passage station symbol list block presets passage corresponding with matrix or cut bank and station symbol information according to agreement;
TALLY state read module is used to identify the TALLY state information after reading.
5. a kind of broadcast quality monitor according to claim 3 is characterized in that, said OSD generation module comprises:
Station symbol character generation module generates corresponding station symbol character picture according to signalling channel and station symbol information;
Station symbol character color conversion module is according to the color of the corresponding conversion station symbol of TALLY state information character picture.
6. monitoring picture generation method based on the said broadcast quality monitor of claim 1; It is characterized in that; Comprise: utilize the TALLY main frame that is installed in the broadcast quality monitor directly to receive signal from front end matrix or cut bank output; Form sdi signal and osd information after treatment respectively, ECDC is shaped as same image information and is presented on the display screen again; Said osd information comprises UMD information and TALLY state information.
7. want the monitoring picture generation method of 6 said broadcast quality monitors according to right, it is characterized in that concrete steps comprise:
Control module in the step 1 TALLY main frame is at first judged passage and the station symbol information that whether presets producer's communication protocol and matrix or cut bank in the system, otherwise, need at first insert or whether the detection at any time system front end has facility information and preservation;
The step 2 receiver module sends in sdi signal processing module and the channel signal processing module the channel signal of front end matrix that receives or cut bank is corresponding with sdi signal;
Step 3 channel signal processing module is searched the channel information tabulation of the communication protocol that presets and matrix or cut bank according to facility information; Find station symbol information according to tabulation; And utilize the OSD technology to generate corresponding station symbol character picture; Then, confirm the color of station symbol character picture according to the TALLY reading state; Simultaneously, the sdi signal processing module is accomplished the processing to sdi signal;
Picture after the step 4 synthesis module is handled station symbol character picture and sdi signal synthesizes same picture, outputs on the display screen, accomplishes UMD information and TALLY state information and the demonstration of SDI picture while on display screen.
8. want the monitoring picture generation method of 7 said broadcast quality monitors according to right; It is characterized in that; In the said step 3; The channel signal processing module is at first compared the channel information and the preset information that receive through control module coordination control signal processing module, forms correspondingly input signal channel and station symbol information, and determines rear end display screen address information; Then, passage and station symbol information are generated corresponding station symbol character picture through the OSD generation module, and control change character picture color, the sign of completion TALLY state information.
9. want the monitoring picture generation method of 8 said broadcast quality monitors according to right; It is characterized in that; The producer and the communication protocol thereof of front end matrix or cut bank are set through the device protocol module in the said signal processing module; According to this agreement, preset passage corresponding and station symbol information through passage station symbol list block, and the sign of utilizing TALLY state read module to accomplish the TALLY state information reads with matrix; Through station symbol character generation module passage and station symbol information are generated corresponding station symbol character picture in the said OSD generation module, and according to the TALLY state information, through the corresponding conversion station symbol of station symbol character color conversion module character picture color.
10. according to the monitoring picture generation method of the said broadcast quality monitor of claim 7, it is characterized in that, in the said step 4,
When the station symbol character need be superimposed upon on the SDI image, synthesis module extracted character data and the positional information on the station symbol character picture, and the view data of the point on the replacement SDI image frame relevant position generates new view data output;
Or,
When the station symbol character need translucently be superimposed upon on the SDI image; After synthesis module calculates the pixel data of the SDI video image of the pixel data of station symbol character picture and correspondence position respectively and carries out the brightness adjustment; Through stack adjusted station symbol character picture and SDI picture signal are superposeed again, form new view data and export.
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| CN112614459A (en) * | 2020-10-30 | 2021-04-06 | 西安诺瓦星云科技股份有限公司 | OSD display method based on LED display screen, device and display control card thereof |
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