CN103260002A - Information remote transmission method in video monitoring field and application thereof - Google Patents
Information remote transmission method in video monitoring field and application thereof Download PDFInfo
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- CN103260002A CN103260002A CN2012100349189A CN201210034918A CN103260002A CN 103260002 A CN103260002 A CN 103260002A CN 2012100349189 A CN2012100349189 A CN 2012100349189A CN 201210034918 A CN201210034918 A CN 201210034918A CN 103260002 A CN103260002 A CN 103260002A
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Abstract
The invention discloses an information remote transmission method in a video monitoring field and application of the information remote transmission method in the video monitoring field. According to the information remote transmission method, functions of a remote procedure call presetting bit in an original MAX networking system in the video monitoring field are used for achieving data transmission, and video overlapping character data are modified in a remote mode through the information remote transmission method. According to the application, numbers of physical cameras are used as indexes, character overlapping information is accurately transmitted into a character overlapping module of an appointed physical camera, and therefore the function that an overlapped character of a video image of the camera can be updated in a remote mode without the requirement that a MAX host machine is restarted is achieved.
Description
Technical field
This patent relates to electric video monitoring field, especially about the method for remote update monitor video character function.
Background technology
In the prior art, the course of work of video superimpose character realizes that by following steps the image that system construction drawing as shown in Figure 1: a, video camera are taken is sent into the MAX cabinet; B, operator input to the MAX main frame by keyboard with switching command; C, MAX main frame will be through sending order to cabinet CPU control card after the computing; D, MAX cabinet CPU control card control video backboard, with video switch to the MAX208 output card of operator's appointment; The character that e, the control of MAX cabinet CPU control card send over main frame shows that data send on the MAX208 output card of operator's appointment; F, MAX208 video output card output video are to monitor, and the operator can see at monitor and superpose the camera review of character.
In said process, be implemented in that the function of overlaying character information on the video image normally realizes by MAX208 video output card, the function of existing MAX208 video output card is: the character of a, description video image that the MAX system host is sent is added on the video image, the source (position) that the user can be known be presented at the video image on the monitor, operating state etc.B, the vision signal that the MAX system is sended over cushion, and have made it impedance matching preferably and load capacity.The content of c, the video presentation information that can flexible configuration shows according to system's needs.For example: when the video camera 104 at eastern station, subway Tian An-men switches on operator's monitor in front through the MAX system, can show character information as shown in Figure 2 at the video image that this video camera is taken, its content, position and display format can carry out flexible configuration at the MAX system host.On video camera is described, character also may be displayed on the upper left corner of supervision such as, Time of Day, and Time of Day can not show etc., and this just cries and the MAX system shown disposes.
The operation principle of MAX208 video output card is as shown in Figure 3: the character superposition of data that a, MAX main frame send enters CPU; B, CPU read the Chinese character font data and deposit in the character laminating module from Hanzi font library; C, incoming video signal extract synchronizing signal and give the character laminating module after video amplifier preliminary treatment, give the character laminating module with pretreated vision signal simultaneously; D, character laminating module obtain to have the vision signal of character with character pattern data and vision signal stack; The vision signal that has character of e, the output of character laminating module is after video amplifies, and the video output signals that obtains 75 ohm is given monitor.
The workflow that the MAX system characters shows can illustrate that a character configuration file is arranged in the MAX system host (AT200) by example, and it thes contents are as follows:
Physics camera number displaying contents
12 CAM012
No. 104 video cameras in east, 104 Tian An-men
……
When the operator switched to the port one of MAX208 video output card for No. 12 with the physics video camera, the MAX system host can send order to MAX208 video output card, and this output card can be presented at " CAM012 " on the video of the 1st output port.
And the like, when the operator switches to the port 2 of MAX208 video output card for No. 104 with the physics video camera, the MAX system host can send order to MAX208 video output card, this output card can be presented at " No. 104 video cameras in east, Tian An-men " on the video of the 2nd output port, has so just realized the function of video camera character stack.
From above operation principle as can be seen, the character content on the video that finally is added to determines by the character configuration file in the MAX system host AT200, and the file of new configuration is worked, and just need restart the MAX main frame at every turn.Can cause video breaks during restarting, one of defective of Here it is former MAX character overlaying function.Secondly, because of the shortcoming of existing MAX208 video output card existence: a, insufficient to the support of Chinese character itself, only less than 3,000 Chinese characters, often not enough in actual the use; B, the character characteristics showed is arranged as position, content etc., cumbersome, need restart the MAX main frame just can work; C, can only local revise the character displaying contents, be not easy to telemanagement, make troubles to management work.
Summary of the invention
The present invention is directed to the defective that prior art exists, invented a kind of video character superimposing technique scheme that can overcome above-mentioned defective, this invention can solve three shortcomings of prior art simultaneously, namely on the function basis with former MAX208 video output card, have following function simultaneously: but a remotely modifying shows character; B supports 2 grades of character libraries of Chinese character; C, character show when resetting, and do not need to restart the MAX main frame.
Be to realize above-mentioned functions, the present invention has carried out following improvement on the basis of original MAX system:
A, by the existing network communication protocol of MAX system, constructing one can direct long-range change overlaying character content and the passage of character display characteristic, makes it to have the function of remotely modifying character.
B, by adding the SD card, the character that needs are shown is stored in the SD card, thereby supports Chinese characters of level 2's character library.
C, because the character content of stack is stored in the SD card, irrelevant with the MAX system host, thus make it to have without MAX system host restart to realize the to superpose function of character of new configuration.
Below will introduce in detail and how realize above-mentioned steps and function:
One of improve: the transmission channel of constructing long-range character superposition of data.
As shown in Figure 4, in the MAX system of networking, a plurality of MAX main frames (AT200) are arranged, carry out communication with RS232 between the MAX main frame, data M AX in this communication channel has defined a series of perfect communications protocol, in order not influence original systemic-function, the present invention utilizes the function of far call front-end camera presetting bit to construct the data transmission channel of our modification overlaying character.
So-called video camera presetting bit refers to, in advance with certain target of alignment lens of video camera, and store the data of this position, this process is presetting bit is set, presetting bit has a lot of, when running into some event, can send the order of calling presetting bit, simply video camera is transferred to the presetting bit that pre-sets, this process is calling presetting bit, adopt the presetting bit mode to simplify the operation, improve reaction speed, extensive utilization is arranged in the video monitoring industry.
In original MAX networked system, have the function of far call presetting bit, and the order of calling presetting bit can be as seen on MAX208 video output card.
The present invention takes full advantage of the function of calling presetting bit, with we revise show character data encapsulation to the order of calling presetting bit, it realizes that principle is as follows: a, the no item that presets uses at ordinary times, for example, presetting bit 70-85.B, presetting bit 70 is defined as hexadecimal number 0, presetting bit 85 is defined as hexadecimal F, like this, sends and once calls the presetting bit order and just can carry the nybble data, sends two and calls the presetting bit order and then can transmit a byte.
Character stack command transfer process is as follows: a, in position that can the invocation target video camera (such as, control centre), a PC is arranged, software that can send presetting bit of the inside operation, link to each other with the MAX main frame by serial ports, the data that needs are transferred to this locality or far-end MAX208 video output card are formed packet by predefined agreement.B, be unit with the nybble with this packet, in order according to realizing that the described rule of principle is transformed into the order of calling presetting bit that the MAX main frame can be identified, and sends to the MAX system host.C, MAX system host are transmitted to next MAX main frame or the MAX cabinet CPU card under it according to the position of target video camera with this order of calling presetting bit.D, MAX cabinet CPU card call the presetting bit command transfer to MAX208 video output card with this.After the CPU of e, MAX208 video output card receives and calls the presetting bit order, will preset item and take out, the rule by front realization principle converts valid data to.Then these valid data are reverted to the character superposition of data bag of PC end, just obtain the data of character stack after unpacking.
Like this, under the situation that does not change original MAX system, realized making up the transmission channel of character superposition of data.
Two of improvement: add SD card storage stack content.
In the MAX208 video output card in the past, there is not to store the storage system of remotely modifying character data, therefore in order to preserve the character configuration file of this remotely modifying, as shown in the figure, on the architecture basics of original MAX208 video output card, add a SD card that is connected with CPU, the main function that realizes storing modification back character data of this card.
Three of improvement: with SD card and data transmission channel combination, realize that not restarting the MAX main frame just can enable amended overlaying character.
For realizing remotely modifying video superimpose literal, need carry out certain setting to existing character configuration file:
At first, the character superposed configuration file in the MAX main frame is made amendment, displaying contents is modified as CAM adds the physics camera number, this part is configured in when arranging at first and remains unchanged, for example:
Physics camera number displaying contents
12 CAM012
104 CAM104
……………
Secondly, by the passage of long-range superposition of data, remotely modifying is wanted the character that shows at video, and this character is configured to comprise the character field of physics camera number, and should amended configuration file stores in the SD card.For example:
Physics camera number displaying contents
12 CAM012
No. 104 video cameras in east, 104 Tian An-men
The 3rd, when the operator is transferred to the corresponding delivery outlet of MAX208 video card with video camera, according to the character configuration file in the amended MAX main frame, its displaying contents is: CAM adds this physics camera number, after this order sends to new MAX208 card, CPU extracts physics camera number in this order, be index with this physics camera number then, in the character configuration file in the SD card, obtain this and number corresponding final displaying contents, then on the character laminating module is added to this content this video-out port.
Technical scheme of the present invention possesses following advantage:
1, dynamically quick remotely modifying shows character, when needs are revised character, only need to utilize and improve data transmission channel described in, directly revise the file content in the SD card, be index with the physics camera number then, system can find the word content of last modification, be presented on the video-out port through the character laminating module, in this process, the MAX main frame is without any changing, memory contents in the just SD card that changes, so need not restart the MAX main frame, the character content of modification just can be added on the video immediately.
In top example, the displaying contents of No. 12 physics video cameras is revised as " Qianmen Dajie video camera 12 " by " CAM012 ", because the character configuration file of MAX main frame is not made any modification, thereby need not restart the MAX main frame, amended character content just can be added on the video immediately.
2, can support more Hanzi font library, because in the character configuration file of MAX main frame, only need to transmit the physics camera number to new MAX208 video output card, final displaying contents is determined by the character configuration file of SD card, that is to say character library capacity and former MAX system independence that the character content of demonstration relates to, just with new MAX208 video output card in the SD card in the character configuration file relevant, thereby avoided the MAX system to the infull drawback of Chinese character encoding.
3, the function that can Remote configuration shows character is for the integration Management of system provides technological means.
Description of drawings:
Fig. 1 is former MAX video monitoring system structure chart;
Fig. 2 is the schematic diagram behind the overlaying character on the video;
Fig. 3 is former MAX208 video output card structure chart;
Fig. 4 is the MAX system configuration schematic diagram of networking;
Fig. 5 is new MAX208 video output card structure chart;
Embodiment:
The character overlaying function implementation procedure of the MAX208 video output card after the improvement is as follows:
1, the character superposed configuration file in the MAX main frame is made amendment, displaying contents is modified as CAM adds the physics camera number, for example
Former character configuration file is:
Physics camera number displaying contents
12 CAM012
No. 104 video cameras in east, 104 Tian An-men
……………
Amended character configuration file:
Physics camera number displaying contents
12 CAM12
104 CAM104
2, by the transmission channel of long-range overlaying character, displaying contents is carried out following change, and the character configuration file stores after will changing is at the SD card of new MAX208 video output card:
Physics camera number displaying contents
12 CAM012
No. 104 video cameras in east, 104 Tian An-men
3, when the operator was transferred to the 1 road delivery outlet of MAX208 video card with No. 12 video cameras, according to the character configuration file in the amended MAX main frame, displaying contents was: CAM012.After this order sends to new MAX208 card, CPU extracts 012 of this order, obtain the physics camera number, be index with this physics camera number then, in the character configuration file in the SD card, obtaining its final displaying contents is CAM012, then on the character laminating module is added to this content the 1 road video-out port.
Equally, when the operator was transferred to the 2 road delivery outlet of MAX208 video card with No. 104 video cameras, according to the character configuration file in the amended MAX main frame, displaying contents was: CAM104.After this order sends to new MAX208 card, CPU extracts 104 of this order, obtain the physics camera number, be index with this physics camera number then, in the character configuration file in the SD card, obtain its final displaying contents for " No. 104 video cameras in east, Tian An-men ", then on the character laminating module is added to this content the 2 road video-out port.
Claims (2)
1. the method for field of video monitoring remote transmission information is characterized in that comprising following steps:
(1) at software that can send presetting bit of control centre's operation, link to each other with the MAX main frame by serial ports, the data that needs are transferred to this locality or far-end MAX208 video output card are formed packet by predefined agreement;
(2) this packet is transformed in order the order of calling presetting bit that the MAX main frame can be identified, sends to the MAX system host;
(3) the MAX system host is transmitted to next MAX main frame or the MAX cabinet CPU card under it according to the position of target video camera with this order of calling presetting bit;
(4) MAX cabinet CPU card calls the presetting bit command transfer to MAX208 video output card with this;
(5) after the CPU of MAX208 video output card receives and calls the presetting bit order, to preset item and take out, to the order of calling presetting bit, and convert the transmitted information data encapsulation to valid data, then these valid data are reverted to the packet of PC end, unpack the back with regard to the acquired information data.
2. use the method for the described method remotely modifying of claim 1 video superimpose character, comprise the steps:
(1) the character superposed configuration file in the MAX main frame is made amendment, displaying contents is modified as the identifier that has the physics camera number;
(2) connect a memory device at original MAX208 video output card CPU;
(3) use the described method of transmitting information of claim 1, the information that modification and transmission will show makes to include the physics camera number in this information, and is stored to described memory device;
(4) the MAX main frame sends order to behind the new MAX208 video adapter, and CPU extracts the physics camera number of this order, and is index with this physics camera number, searches this and number corresponding character configuration file in the SD card;
(5) the character laminating module is with the corresponding displaying contents of the above-mentioned character configuration file video-out port that is added to.
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| CN201210034918.9A CN103260002B (en) | 2012-02-16 | 2012-02-16 | A kind of method and application thereof of field of video monitoring remote transmission information |
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| CN201210034918.9A CN103260002B (en) | 2012-02-16 | 2012-02-16 | A kind of method and application thereof of field of video monitoring remote transmission information |
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Cited By (2)
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| CN103777614A (en) * | 2014-01-27 | 2014-05-07 | 富盛科技股份有限公司 | Closed-circuit monitoring front-end maintenance intelligent auxiliary system and implementation method thereof |
| CN104951305A (en) * | 2015-06-16 | 2015-09-30 | 诚迈科技（南京）股份有限公司 | Method for managing camera based on text analysis and management system |
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| US20070200855A1 (en) * | 2006-02-22 | 2007-08-30 | Kabushiki Kaisha Square Enix (Also Trading As Square Enix Co.,Ltd.) | Video game apparatus for displaying information indicating boundary between fields |
| CN101123720A (en) * | 2007-09-04 | 2008-02-13 | 刘德润 | Video image transformer and its control method |
| CN101996491A (en) * | 2010-09-13 | 2011-03-30 | 李志恒 | Traffic monitoring system for labeling road section information by using video monitoring presetting bit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103777614A (en) * | 2014-01-27 | 2014-05-07 | 富盛科技股份有限公司 | Closed-circuit monitoring front-end maintenance intelligent auxiliary system and implementation method thereof |
| CN103777614B (en) * | 2014-01-27 | 2017-03-01 | 富盛科技股份有限公司 | A kind of closed-circuit control maintained from front end intelligent assistance system and its implementation |
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| CN103260002B (en) | 2016-06-08 |
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