CN109688383A - Aircraft aviation data center safety and protection monitoring system and method based on web camera - Google Patents
Aircraft aviation data center safety and protection monitoring system and method based on web camera Download PDFInfo
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- CN109688383A CN109688383A CN201811637400.8A CN201811637400A CN109688383A CN 109688383 A CN109688383 A CN 109688383A CN 201811637400 A CN201811637400 A CN 201811637400A CN 109688383 A CN109688383 A CN 109688383A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000005538 encapsulation Methods 0.000 claims description 13
- 239000011159 matrix material Substances 0.000 claims description 13
- 238000013144 data compression Methods 0.000 claims description 8
- 238000001914 filtration Methods 0.000 claims description 6
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- 239000003245 coal Substances 0.000 claims description 3
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- 238000012545 processing Methods 0.000 abstract description 4
- 230000004044 response Effects 0.000 abstract description 4
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/231—Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers, prioritizing data for deletion
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
- H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
- H04N21/234309—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by transcoding between formats or standards, e.g. from MPEG-2 to MPEG-4 or from Quicktime to Realvideo
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/235—Processing of additional data, e.g. scrambling of additional data or processing content descriptors
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/258—Client or end-user data management, e.g. managing client capabilities, user preferences or demographics, processing of multiple end-users preferences to derive collaborative data
- H04N21/25808—Management of client data
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/435—Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
- H04N21/440218—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by transcoding between formats or standards, e.g. from MPEG-2 to MPEG-4
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Computer Graphics (AREA)
- Closed-Circuit Television Systems (AREA)
Abstract
The aircraft aviation data center safety and protection monitoring system based on web camera that the invention discloses a kind of, including eight road network video server of several groups, each eight road networks video server is respectively connected with eight road network video cameras, each eight road networks video camera is distributed in the corresponding position in aircraft aviation data center, and each eight road networks video server is also respectively connected with disk memory array, plasma panel.Aircraft aviation data center safety and protection monitoring system and method based on web camera of the invention, web camera Unique Device identification code can be set, and it is packaged according to H264 video flowing, and flag bit step-by-step exclusive or headed by tail flag bit is formed, ensure web camera, when convenient for processing emergency event, user has found accident point at the first time, response time is fast, and by selecting suitable web camera as needed, convenient for storing a large amount of video data, while real-time exhibition, can server storage, convenient for inquiry, it has a good application prospect.
Description
Technical field
The present invention relates to aircraft aviation data center technical field of security, specially a kind of aircrafts based on web camera
Aeronautical data center safety and protection monitoring system and method.
Background technique
With the rapid development of network technology, it will appear extremely huge data volume in network transmission and storing process.And
And the requirement with people to trip speed, more and more fast, aircraft trip is more and more favored.Therefore, Aircraft
Empty data center has become the important lifeblood of aircraft aviation pipe reason, just because of its consequence.
The rapid development of domestic data center construction in recent years, the importance of aircraft aviation data center security energy, just not
It says and explains, be directly related to the vital conjuncture of the aircraft aviation data center.Currently, traditional aircraft aviation data center is pacified
Monitoring system is protected, by being mounted on the different video camera of aircraft aviation data center, transfers data to background terminal, into
Row multizone split screen display available, still, since the distribution of video camera is numerous, user of service can not obtain in time there is situation
Position causes to handle emergency event delay.Moreover, existing video camera storage capacity is limited, will not meet prolonged
Coutinuous store, and without alarm setting, intelligent, the rapid requirement of the aircraft aviation data center security that can not all follow up.
Summary of the invention
The purpose of the invention is to overcome aircraft aviation data center safety and protection monitoring in the prior art, video camera
Distribution it is numerous, user of service can not obtain the position for situation occur, the limited problem of video camera storage capacity in time.
Aircraft aviation data center safety and protection monitoring system and method based on web camera of the invention, can be arranged web camera
Unique Device identification code, and be packaged according to H264 video flowing, and flag bit step-by-step exclusive or headed by tail flag bit is formed, really
Web camera is protected, when convenient for processing emergency event, user has found accident point at the first time, and the response time is fast, and passes through root
According to needing to select suitable web camera, convenient for storing a large amount of video data, while real-time exhibition, can server deposit
Storage, convenient for inquiry, method is ingenious, and construction is novel, has a good application prospect.
In order to achieve the above object, the technical scheme adopted by the invention is that:
A kind of aircraft aviation data center safety and protection monitoring system based on web camera, including eight road network video of several groups clothes
Business device,
Each eight road networks video server is respectively connected with eight road network video cameras, and each eight road networks video camera is distributed in aircraft aviation
Corresponding position in data center, each eight road networks video server are also respectively connected with disk memory array, plasma panel,
Each eight road networks video server passes through mouse, keyboard interface is connected with KVM switch, each eight road networks video clothes
Business device is also connected by cable with the network switch, and the KVM switch connection and mouse, keyboard equipment, the KVM are handed over
It changes planes and is connected with digital network matrix, the digital network matrix is connected with and the consistent monitor lcd of web camera quantity
Device, the network switch are connected by cable with server terminal, the network switch can also by Ethernet and mutually
Networking carries out data interaction,
Be configured with unique EIC equipment identification code in each web camera, each web camera include USB interface camera,
Power PC Processor, storage circuit, network chip, filtering transforming circuit, RJ network interface, control keyboard, LCD display and
Warning circuit,
The USB interface camera, storage circuit, network chip, control keyboard, LCD display and warning circuit respectively with
Power PC Processor is connected, and the network chip is connected by filtering transforming circuit with RJ network interface.
Aircraft aviation data center safety and protection monitoring system above-mentioned based on web camera, the eight road networks video clothes
Business device is eight groups.
Aircraft aviation data center safety and protection monitoring system above-mentioned based on web camera, the Web Video Service
Device, including video data acquiring circuit, data compression circuit, storage circuit, network interface circuit and microprocessor, the video
Data acquisition circuit is eight tunnels, is connected respectively with web camera, the video data acquiring circuit passes through data pressure respectively
Contracting circuit is connected with the microprocessor, and the microprocessor is connected with storage circuit, network interface circuit respectively, the storage
Circuit is eight groups, stores the data that corresponding video data acquiring circuit receives respectively, the microprocessor also passes through I2C is total
Line is connected with video data acquiring circuit.
Aircraft aviation data center safety and protection monitoring system above-mentioned based on web camera, the web camera use
CCD camera lens, marginal illumination meet .lux/f., provide message storage and MPEG video compression function.
Aircraft aviation data center safety and protection monitoring system above-mentioned based on web camera, needed for the web camera
Monthly memory capacity be M, as shown by the equation,
(1)
Wherein, M is the moon memory capacity of separate unit web camera, and m is the frame per second of video；K is the image quality single frames size of video.
Aircraft aviation data center safety and protection monitoring system above-mentioned based on web camera, the network video server
Interior data compression circuit supports H264 and MPEG4 data standard.
Aircraft aviation data center safety and protection monitoring system above-mentioned based on web camera, the network switch are thousand
Million rank ethernet network interchangers.
A kind of aircraft aviation data center safety and protection monitoring method based on web camera, includes the following steps,
Platform web camera is spacedly distributed in the inside of aircraft aviation data center, two adjacent networks by step (A)
Spacing between video camera is no more than rice, and carries out device coding to each web camera, so that it is obtained unique equipment and knows
Other code；
The EIC equipment identification code of web camera is carried out data encapsulation by step (B), and the EIC equipment identification code after encapsulation meets H video
The coding standard of stream；
The EIC equipment identification code for meeting H video flowing coding standard is added to H264 bit stream data by step (C), and coal addition position is H code
After stream I frame or P frame data；
The H264 bit stream data that the EIC equipment identification code of web camera is added is transmitted to network video server, and led to by step (D)
Cross network video server, KVM switch is transferred to digital network matrix；Meanwhile the equipment that web camera is added being identified
The H264 bit stream data of code is transmitted to network video server, is transferred to server terminal by the network switch；
Step (E), digital network matrix extract the EIC equipment identification code in H264 bit stream data, by corresponding video information
It is presented on each LCD monitor；
Step (F), server terminal extract the EIC equipment identification code in H264 bit stream data, and corresponding video information is deposited
It stores up in corresponding database.
Aircraft aviation data center safety and protection monitoring method above-mentioned based on web camera, step (B), by network shooting
The EIC equipment identification code of machine carries out data encapsulation, and the EIC equipment identification code after encapsulation meets the coding standard of H264 video flowing, including with
Lower step,
(B1), the head of EIC equipment identification code is increased to the first flag bit of fixed hexadecimal data；
(B2), the data length of EIC equipment identification code is calculated, and data length position is increased to the rear portion of flag bit；
(B3), EIC equipment identification code is added to data length position rear portion；
(B4), increase the tail flag bit of fixed hexadecimal data after EIC equipment identification code, indicate headed by the tail flag bit
Position step-by-step exclusive or is formed.
Aircraft aviation data center safety and protection monitoring method above-mentioned based on web camera, the EIC equipment identification code, packet
Include device id, device model information and equipment factory information.
The beneficial effects of the present invention are: the aircraft aviation data center safety and protection monitoring system of the invention based on web camera
System and method, can be arranged web camera Unique Device identification code, and be packaged according to H264 video flowing, and by tail tag will
Flag bit step-by-step exclusive or is formed headed by position, it is ensured that web camera, when convenient for processing emergency event, user has found at the first time
Accident point, the response time is fast, and by selecting suitable web camera as needed, convenient for storing a large amount of video data,
While real-time exhibition, can server storage, convenient for inquiry, guarantee aircraft aviation data center security reliability, directly
People's property safety during people's trip is protected, method is ingenious, and construction is novel, has a good application prospect.
Detailed description of the invention
Fig. 1 is the system block diagram of the aircraft aviation data center safety and protection monitoring system of the invention based on web camera；
Fig. 2 is the system block diagram of web camera of the invention；
Fig. 3 is the system block diagram of network video server of the invention.
Attached meaning marked in the figure is as follows:
1: network video server；2: web camera；3: disk memory array；4: plasma panel；5:KVM interchanger；
6: the network switch；7: digital network matrix；8: LCD monitor；9: server terminal.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1, the aircraft aviation data center safety and protection monitoring system of the invention based on web camera, if including
Eight road network video servers 1 of dry group,
Each eight road networks video server 1 is respectively connected with eight road network video cameras 2, and each eight road networks video camera 2 is distributed in aircraft
Corresponding position in aeronautical data center, each eight road networks video server 1 are also respectively connected with disk memory array 3, plasma
Display screen 4 backs up convenient for the display of eight current road network video cameras and video data,
Each eight road networks video server 1 is connected by mouse, keyboard interface with KVM switch 5, each eight road networks video
Server 1 is also connected by cable with the network switch 6, the connection of KVM switch 5 and mouse, keyboard equipment, described
KVM switch 5 is connected with digital network matrix 7, and the digital network matrix 7 is connected with consistent with 2 quantity of web camera
LCD monitor 8, the network switch 6 is connected by cable with server terminal 9, and the network switch 6 may be used also
Data interaction is carried out by Ethernet and internet,
As shown in Fig. 2, being configured with unique EIC equipment identification code in each web camera 2, each web camera 2 includes USB interface
Camera, Power PC Processor, storage circuit, network chip, filtering transforming circuit, RJ45 network interface, control keyboard, LCD
Display screen and warning circuit,
The USB interface camera, storage circuit, network chip, control keyboard, LCD display and warning circuit respectively with
Power PC Processor is connected, and the network chip is connected by filtering transforming circuit with RJ45 network interface.
Wherein, the eight road networks video server 1 is eight groups, convenient for covering entire large-scale data center, is suitable for
The use of aircraft aviation data center.
As shown in figure 3, the network video server, including video data acquiring circuit, data compression circuit, storage electricity
Road, network interface circuit and microprocessor, the video data acquiring circuit are eight tunnels, are connected respectively with web camera 2,
The video data acquiring circuit is connected with the microprocessor by data compression circuit respectively, the microprocessor respectively with deposit
Storage road, network interface circuit are connected, and the storage circuit is eight groups, store corresponding video data acquiring circuit respectively and connect
The data received, the microprocessor pass through I2C bus is connected with video data acquiring circuit.
Preferably, the web camera 2 uses CCD camera lens, and marginal illumination meets 2.5lux/f1.4, provides message receipts
Receive with MPEG4 video compression functionality, powerful, instead of traditional video camera, be capable of more convenient and quicker is applied to number
According to center, the security of data center is ensured.
Monthly memory capacity is M needed for the web camera 2, as shown in Equation (1),
(1)
Wherein, M is the moon memory capacity of separate unit web camera, and m is the frame per second of video；K is the image quality single frames size of video, respectively
According to the needs of video image quality, 2 capacity of web camera is thought needed for configuration.
Preferably, the data compression circuit in network video server supports H264 and MPEG4 data standard, use scope
Extensively, selectivity is good.
Preferably, the network switch 6 is gigabit rank ethernet network interchanger, guarantees data quickly and effectively
Transmission, strong real-time.
According to the aircraft aeronautical data of the above-mentioned aircraft aviation data center safety and protection monitoring system based on web camera
Center safety and protection monitoring method, includes the following steps,
64 web cameras are spacedly distributed in the inside of aircraft aviation data center, two adjacent nets by step (A)
Spacing between network video camera is no more than 100 meters, and carries out device coding to each web camera, sets its acquisition uniquely
Standby identification code；
The EIC equipment identification code of web camera is carried out data encapsulation by step (B), and the EIC equipment identification code after encapsulation meets H264 view
The coding standard of frequency stream；
The EIC equipment identification code for meeting H264 video flowing coding standard is added to H264 bit stream data by step (C), and coal addition position is
After H264 code stream I frame or P frame data；
The H264 bit stream data that the EIC equipment identification code of web camera is added is transmitted to network video server, and led to by step (D)
Cross network video server, KVM switch 5 is transferred to digital network matrix 7；Meanwhile the equipment that web camera is added being known
The H264 bit stream data of other code is transmitted to network video server, is transferred to server terminal 9 by the network switch 6；
Step (E), digital network matrix 7 extract the EIC equipment identification code in H264 bit stream data, and corresponding video is believed
Breath is presented on each LCD monitor 8；
Step (F), server terminal 9 extract the EIC equipment identification code in H264 bit stream data, by corresponding video information
It stores in corresponding database.
Wherein, the EIC equipment identification code of web camera is carried out data encapsulation, the EIC equipment identification code after encapsulation by step (B)
The coding standard for meeting H264 video flowing, includes the following steps,
(B1), the head of EIC equipment identification code is increased to the first flag bit of fixed hexadecimal data；
(B2), the data length of EIC equipment identification code is calculated, and data length position is increased to the rear portion of flag bit；
(B3), EIC equipment identification code is added to data length position rear portion；
(B4), increase the tail flag bit of fixed hexadecimal data after EIC equipment identification code, indicate headed by the tail flag bit
Position step-by-step exclusive or is formed, so that it is guaranteed that meeting the uniqueness of the EIC equipment identification code symbol of H264 video flowing coding standard after encapsulation, no
A possibility that in the presence of repeating, and it is safe and reliable, prevent a possibility that decryption positions each web camera position, improves the peace of network
Full performance.
Preferably, the EIC equipment identification code, including device id, device model information and equipment factory information.
In conclusion the aircraft aviation data center safety and protection monitoring system and method for the invention based on web camera,
Web camera Unique Device identification code can be set, and be packaged according to H264 video flowing, and be head by tail flag bit
Step-by-step exclusive or in will position is formed, it is ensured that and web camera, when convenient for processing emergency event, user has found accident point at the first time,
Response time is fast, and by selecting suitable web camera as needed, convenient for storing a large amount of video data, opens up in real time
While showing, can server storage, convenient for inquiry, guarantee aircraft aviation data center security reliability, directly protection people
People's property safety during trip, method is ingenious, and construction is novel, has a good application prospect.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (10)
1. the aircraft aviation data center safety and protection monitoring system based on web camera, it is characterised in that: including eight tunnel of several groups
Network video server (1),
Each eight road networks video server (1) is respectively connected with eight road network video cameras (2), each eight road networks video camera (2) distribution
Corresponding position in aircraft aviation data center, each eight road networks video server (1) are also respectively connected with disk memory array
(3), plasma panel (4),
Each eight road networks video server (1) is connected by mouse, keyboard interface with KVM switch (5), each eight road network
Video server (1) is also connected by cable with the network switch (6), KVM switch (5) connection and mouse, key
Disc apparatus, the KVM switch (5) are connected with digital network matrix (7), and the digital network matrix (7) is connected with and net
The consistent LCD monitor of network video camera (2) quantity (8), the network switch (6) pass through cable and server terminal (9) phase
Connection, the network switch (6) can also carry out data interaction by Ethernet and internet,
Be configured with unique EIC equipment identification code in each web camera (2), each web camera (2) include USB interface camera,
Power PC Processor, storage circuit, network chip, filtering transforming circuit, RJ45 network interface, control keyboard, LCD display
And warning circuit,
The USB interface camera, storage circuit, network chip, control keyboard, LCD display and warning circuit respectively with
Power PC Processor is connected, and the network chip is connected by filtering transforming circuit with RJ45 network interface.
2. the aircraft aviation data center safety and protection monitoring system according to claim 1 based on web camera, feature
Be: the eight road networks video server (1) is eight groups.
3. the aircraft aviation data center safety and protection monitoring system according to claim 1 based on web camera, feature
It is: the network video server, including video data acquiring circuit, data compression circuit, storage circuit, network interface electricity
Road and microprocessor, the video data acquiring circuit are eight tunnels, are connected respectively with web camera (2), the video counts
Be connected with the microprocessor respectively by data compression circuit according to Acquisition Circuit, the microprocessor respectively with storage circuit, net
Network interface circuit is connected, and the storage circuit is eight groups, stores the number that corresponding video data acquiring circuit receives respectively
According to the microprocessor also passes through I2C bus is connected with video data acquiring circuit.
4. the aircraft aviation data center safety and protection monitoring system according to claim 1 based on web camera, feature
Be: the web camera (2) uses CCD camera lens, and marginal illumination meets 2.5lux/f1.4, provides message storage and MPEG4
Video compression functionality.
5. the aircraft aviation data center safety and protection monitoring system according to claim 1 based on web camera, feature
Be: monthly memory capacity is M needed for the web camera (2), as shown in Equation (1),
(1)
Wherein, M is the moon memory capacity of separate unit web camera, and m is the frame per second of video；K is the image quality single frames size of video.
6. the aircraft aviation data center safety and protection monitoring system according to claim 1 based on web camera, feature
Be: the data compression circuit in the network video server supports H264 and MPEG4 data standard.
7. the aircraft aviation data center safety and protection monitoring system according to claim 1 based on web camera, feature
Be: the network switch (6) is gigabit rank ethernet network interchanger.
8. the aircraft aviation data center safety and protection monitoring method based on web camera, it is characterised in that: include the following steps,
64 web cameras are spacedly distributed in the inside of aircraft aviation data center, two adjacent nets by step (A)
Spacing between network video camera is no more than 100 meters, and carries out device coding to each web camera, sets its acquisition uniquely
Standby identification code；
The EIC equipment identification code of web camera is carried out data encapsulation by step (B), and the EIC equipment identification code after encapsulation meets H264 view
The coding standard of frequency stream；
The EIC equipment identification code for meeting H264 video flowing coding standard is added to H264 bit stream data by step (C), and coal addition position is
After H264 code stream I frame or P frame data；
The H264 bit stream data that the EIC equipment identification code of web camera is added is transmitted to network video server, and led to by step (D)
Cross network video server, KVM switch (5) is transferred to digital network matrix (7)；Meanwhile setting for web camera will be added
The H264 bit stream data of standby identification code is transmitted to network video server, is transferred to server terminal by the network switch (6)
(9)；
Step (E), digital network matrix (7) extract the EIC equipment identification code in H264 bit stream data, by corresponding video
Information is presented on each LCD monitor (8)；
Step (F), server terminal (9) extract the EIC equipment identification code in H264 bit stream data, corresponding video are believed
In breath storage to corresponding database.
9. the aircraft aviation data center safety and protection monitoring method according to claim 8 based on web camera, feature
Be: the EIC equipment identification code of web camera is carried out data encapsulation by step (B), and the EIC equipment identification code after encapsulation meets H264
The coding standard of video flowing, includes the following steps,
(B1), the head of EIC equipment identification code is increased to the first flag bit of fixed hexadecimal data；
(B2), the data length of EIC equipment identification code is calculated, and data length position is increased to the rear portion of flag bit；
(B3), EIC equipment identification code is added to data length position rear portion；
(B4), increase the tail flag bit of fixed hexadecimal data after EIC equipment identification code, indicate headed by the tail flag bit
Position step-by-step exclusive or is formed.
10. the aircraft aviation data center safety and protection monitoring method according to claim 9 based on web camera, feature
It is: the EIC equipment identification code, including device id, device model information and equipment factory information.
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