CN102625146B - Outdoor electronic information simultaneous broadcast network system - Google Patents
Outdoor electronic information simultaneous broadcast network system Download PDFInfo
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- CN102625146B CN102625146B CN201210088314.2A CN201210088314A CN102625146B CN 102625146 B CN102625146 B CN 102625146B CN 201210088314 A CN201210088314 A CN 201210088314A CN 102625146 B CN102625146 B CN 102625146B
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Abstract
The invention discloses an outdoor electronic information simultaneous broadcast network system, which is composed of a material editing unit, a video program reading and editing unit, a network live broadcast unit, a delivering and monitoring subsystem and a plurality of expendable light-emitting diode (LED) display units. The outdoor electronic information simultaneous broadcast network system integrates editing, examining and verifying, broadcasting and monitoring and is a cross-region real-time simultaneous broadcast network composed of a broadcasting center and a plurality of outdoor LED large screens. Compared with the prior art, the outdoor electronic information simultaneous broadcast network system is good in compatibility and capable of simultaneously supporting traditional finished programs, high-timeliness current date video programs and live broadcast programs, provides high-level safety guarantee and program prevention in each link and when safety problems happen, can fast respond to and timely handle the problems.
Description
Technical field
The present invention relates to a kind of radio hookup net system, more specifically say a kind of real-time outdoor electronic information dissemination net system of cross-region.
Background technology
Along with scientific and technological progress in recent years and economic rapid development, the development and application of outdoor LED large-size screen monitors is very rapid.But most outdoor LED large-size screen monitors systemic-functions is comparatively single at present, every day is taking the program of the duplicate contents such as broadcast advertisement, propaganda film as main substantially.Be difficult to support ageing strong, attract spectators the stop news category of watching, the broadcast of live class program, cause spectators' rating enthusiasm little, mood even easily takes exception.Technically, its main cause is that this type systematic generally only can be supported traditional finished product program, be difficult to effectively support live signal and every day newly organized program, the links such as material obtaining, program making, content auditing, delivery broadcasting cannot be combined closely mutually, cause that broadcast program form is single, content is relatively outmoded.And if adopt System and Network independently separately, by stiff above-mentioned link separately, can cause on the one hand the system compatibility in each link, consistency and fail safe compared with Customers ' Legal Right video frequency program; On the other hand, also seriously restricted the response speed of system.
Meanwhile, in view of outdoor LED large-size screen monitors many places are in business district, broadcast content audient is wide, Guan Zhongduo, and influence surface is comparatively extensive, and the functions such as supervision that supervise in real time during examination & verification, broadcast to broadcast content seem particularly important.A lot of outdoor LED large-size screen monitors once occurred and play the event of the even obscene Pornograph of uncomfortable content, and the event of generation reprocessing response is slower, causes comparatively severe social influence.The reason that occurs these problems is fail safe weakness in existing outdoor large-size screen monitors simulcasting system, is difficult for preventing in advance the generation of the problems referred to above, lacks the technological means of effectively processing fast after sudden security incident occurs.
Summary of the invention
The present invention is for avoiding the existing deficiency of above-mentioned prior art, provide one compatible various video to originate, comprise material video on the same day, finished product video and live video, guarantee the outdoor electronic information dissemination net system of the cross-region of high controllability, fail safe simultaneously.
For reaching above object, the present invention takes following technical scheme:
The feature of outdoor electronic information dissemination net system of the present invention is that system composition comprises material gather and edit unit, video frequency program editing unit, network direct broadcasting unit, delivery and Monitor And Control Subsystem and extendible multiple LED display unit;
The described material unit of gathering and editing, for receiving material vision signal, and record, coding and edit-modify, generate pending trial video frequency program;
Described video frequency program editing unit is to form by uploading security authentication module, video frequency program storehouse server and program editing server; The described security authentication module of uploading carries out safety certification to user, and the finished product video frequency program deriving from outside information dissemination net system is uploaded to video frequency program storehouse server by user through safety certification; Described video frequency program storehouse server is for storing described finished product video frequency program and by the material pending trial video frequency program that unit generates of gathering and editing, for program editing server calls; Described program editing server is set different user rights and auditing flow, user carrys out the dot information temporally of layout video program play in authority separately according to auditing flow, content to described dot information temporally, pending trial video frequency program and finished product video frequency program is audited, and generates video frequency program to be broadcast and programme to be broadcast;
Described network direct broadcasting unit, is made up of live secure verification module, live source access module and streaming coding module; Described live secure verification module is carried out safety certification to user; After safety certification success, user is linked into streaming coding module by live source access module by the on-the-spot broadcasting vision signal deriving from outside information dissemination net system, and in described streaming coding module, be encoded to and deliver the streaming media video data form of supporting with Monitor And Control Subsystem, the on-the-spot broadcasting vision signal of generating encoded;
Described delivery and Monitor And Control Subsystem, for receiving video frequency program to be broadcast, programme to be broadcast and the encoded on-the-spot broadcasting vision signal from network direct broadcasting unit from video frequency program editing unit; Long-rangely be delivered to described LED display unit on-the-spot broadcasting vision signal is play, and be delivered to described LED display unit and treat and broadcast video frequency program and play according to programme to be broadcast is long-range; The real time status that telemonitoring and control are play simultaneously; The picture passback storage that LED display unit is shown is in order to having access to;
Described extendible multiple LED display units divide and are on different geographical position, show for the Long-distance Control that receives described delivery and Monitor And Control Subsystem.
The feature of outdoor electronic information dissemination net system of the present invention is also:
The described material unit of gathering and editing is to be made up of video signal receiver, material collection server and editing server; Described video signal receiver receives material vision signal, is the signal format that material collection server is supported by the format conversion of described material vision signal, and the signal after transmission conversion is to material collection server; The signal of described material collection server after to described conversion recorded, and is encoded into video frequency program; Login the video frequency program after described editing server editor and amendment material collection server code by user, generate described pending trial video frequency program.
Communication network and the Internet the Internet of described radio hookup net system are isolated, and isolation method is the isolation of VPN virtual network or physical network isolation.
The feature of outdoor electronic information dissemination net system of the present invention is also:
Described delivery and Monitor And Control Subsystem have the broadcast of delivery unit, monitoring passback unit and signal gathering unit:
It is to form by delivering sending module, multiple delivery receiver module and multiple program playing module that unit is broadcasted in described delivery;
Described delivery sending module receiving video program, programme, user control signal and from the event handling signal of described monitoring passback unit, in described delivery sending module, described video frequency program is after video flowing is encrypted, with programme, user control signal and event handling signal carry out session interaction encryption jointly, by the two protocol modes of binary channels using the video frequency program of delivering through data channel and programme and through the user control signal of real-time channel delivery and event handling signal as delivery signals, double-circuit aggregation networks by telecommunications E1 special line and the E1 of UNICOM special line composition is delivered to described each delivery receiver module, described each delivery receiver module and described each program playing module are encapsulated in respectively in each embedded device, described each delivery receiver module sends and starts play signal to described program playing module after described delivery signals is decrypted and is preserved, and sends to described monitoring to return the front-end processing module of unit user control signal and event handling signal simultaneously, described each program playing module according to programme output video programme signal, is waited for the abnormality for the treatment of program playing module from the troubleshooting signal of the front-end processing module of described monitoring passback unit after detecting from the beginning play signal of described delivery receiver module simultaneously,
Described monitoring passback unit is by passback sending module, passback receiver module, passback processing module, passback memory module, emergency response module and front-end processing module composition;
Described passback sending module receives from the site environment parameter of described signal gathering unit and monitoring audio-video signal, and described site environment parameter and monitoring audio-video signal are carried out sending to described passback receiver module as Real-time Monitoring Data after session interaction encryption; Described passback receiver module carries out safety check for the Real-time Monitoring Data from described passback sending module, and will be sent to passback processing module by the Real-time Monitoring Data of safety check, the fail safe that described passback processing module is broadcasted video frequency program and site environment parameter by automatic decision that Real-time Monitoring Data is compared, for occurring that abnormal video frequency program or site environment parameter send event handling signal to described emergency response module, while output monitoring information is also put into described passback memory module by real-time monitor data; By described emergency response module, event handling signal is broadcasted to unit by described delivery and be delivered to described front-end processing module; Described front-end processing module is exported emergency treatment signal for event handling signal according to event level, and sends troubleshooting signal to described program playing module;
Described signal gathering unit is made up of transducer, data processing module, bus converter, audio-video collection module and audio frequency and video processing module;
Described transducer is for gathering the site environment parameter including infrared, gate inhibition, power supply, cigarette sense, temperature and humidity, after described data processing module is processed, by described bus converter, site environment parameter is converted to network signal and sends to described monitoring to return the passback sending module of unit; Described audio-video collection module collection monitoring audio-video signal, after processing, sends to the passback sending module of described monitoring passback unit by audio frequency and video processing module.
Compared with prior art, beneficial effect of the present invention is embodied in:
1, the compatible various video of the present invention source, except comprising traditional finished product program, can also newly record video frequency program and on-the-spot broadcasting program that editor generates compatible every day, efficiently solves single, the outmoded problem of current outdoor large-size screen monitors system for content.
2, the present invention closely combines video frequency program from source material obtaining, editing, content auditing, the long-range link such as final outdoor broadcast, monitoring passback file that is delivered to, significantly promote video frequency program from collecting the total system response speed of final broadcast, fully ensured consistency and the compatibility of video frequency program in each link simultaneously.
3, security performance of the present invention is outstanding, is mainly reflected in these points:
The first, for live video signal, need user to carry out security credential by live secure verification module, for finished product video frequency program, need user to carry out security credential by uploading security authentication module, only have by after above-mentioned safety certification, these vision signals can enter system; Video program content and broadcast time place provide strict examination & verification by video frequency program editing unit, thereby ensured the fail safe of video program content.
The second, system of the present invention is supported VPN technologies and two kinds of Network Isolation modes of physical isolation, therefore from logic, the network security of safeguards system physically; Internet Transmission adopts private communications protocol and encryption mechanism, can effectively prevent from illegally transmitting data, illegally intercept and altered data content, guarantee the fail safe of system data in the time of Internet Transmission.
Three, the present invention arranges and delivers and Monitor And Control Subsystem, by enriching perfect monitoring and exception handling, as supervised in advance preliminary hearing, urgent stop broadcasting, long distance forced switching on and shutting down, historical monitored picture and have access to playback etc., significantly fail safe and the problem trackability of elevator system in the time that program broadcasts.
4, in the present invention, video frequency program editing unit is all flexibly customized to user right, editing flow process, can effectively improve the efficiency of program examination.
Brief description of the drawings
Fig. 1 is outdoor electronic information dissemination net system architecture diagram in the present invention;
Fig. 2 is the auditing flow figure of video frequency program editing unit in the present invention;
Fig. 3 delivers and the structured flowchart of Monitor And Control Subsystem in the present invention;
Fig. 4 delivers in the present invention with Monitor And Control Subsystem to deliver the video flowing encryption flow figure that broadcasts unit;
Fig. 5 delivers and the session interaction encryption flow figure of Monitor And Control Subsystem in the present invention;
Fig. 6 is the structured flowchart of LED display unit in the present invention;
Embodiment
Referring to Fig. 1, material is gathered and edited unit for receiving material vision signal, and record, coding and edit-modify, generate pending trial video frequency program.The material unit of gathering and editing is to be made up of video signal receiver, material collection server and editing server; Video signal receiver receives material vision signal, is the signal format that material collection server is supported by the format conversion of material vision signal, and the signal after transmission conversion is to material collection server; Material collection server is recorded the signal after changing, and is encoded into video frequency program; Login the video frequency program after editing server editor and amendment material collection server code by user, generate pending trial video frequency program.
In concrete enforcement, video signal receiver access satellite material program source on the same day, adopts AV signaling interface to be connected with material collection server.The video source signal form of material collection server recording video program is S-Video, and coded format is for H.264, and resolution is 720 × 576, and frame speed was 25 frame/seconds, and file format is MPG.Video frequency program stores the video frequency program storehouse server of video frequency program editing unit into from editing server, the storage mode adopting is to store by IP network, and storage mode is followed iSCSI agreement.
Referring to Fig. 1, video frequency program editing unit forms by uploading security authentication module, video frequency program storehouse server and program editing server; Upload security authentication module user is carried out to safety certification, the finished product video frequency program deriving from outside information dissemination net system is uploaded to video frequency program storehouse server by user through safety certification; Video frequency program storehouse server is for storing finished product video frequency program and by the material pending trial video frequency program that unit generates of gathering and editing, for program editing server calls; Program editing server is set different user rights and auditing flow, user carrys out the dot information temporally of layout video program play in authority separately according to auditing flow, the content of dot information, pending trial video frequency program and finished product video frequency program is temporally audited, generate video frequency program to be broadcast and programme to be broadcast.
In concrete enforcement, uploading security authentication module is the software systems based on B/S framework, and user account information is carried out MD5 algorithm for encryption with odd bits, and even bit carries out 3DES algorithm for encryption, is stored in MySQL database after encryption.After authentication success, upload the video format that certification subsystem uploads user and limit, the video format that only meets default requirement allows to upload.In the present embodiment, video format requires as WMV, AVI, MPEG, MPG, RMVB form.
In concrete enforcement, program editing server-assignment system manager role and editor, responsible editor, chief editor and four kinds of roles of domestic consumer of editor-in-chief.System manager has the authority that user is increased, deletes, changes, looks into, and can formulate the authority with role and these roles of distributing user.Each domestic consumer exercises role's authority separately and processes the different links (referring to Fig. 2) in auditing flow, must not go beyond one's commission and processes or replace other roles to process, strictly to ensure the fail safe of programme content and form.Auditing flow comprises:
(1), write column planning by responsible editor, submit to chief editor and audit.Examination & verification is carried out programme editor by being handed down to editor; Examination & verification does not remodify column planning by returning to responsible editor.
(2), editorial staff plans according to column, the programme editting is submitted to chief editor and audits.All programmes that examination & verification is passed through are handed down to editorial staff and carry out whole day listing editor; Examination & verification does not remodify programme by returning to editorial staff.
(3), editorial staff submits to editor-in-chief by the whole day listing of putting in order and audits.Examination & verification by entering content editing flow process.Examination & verification does not remodify whole day listing by returning to editorial staff.
(4), responsible editor receives whole day listing, arranges column planning to be compiled, and fills in column material and compiles singly, be handed down to editorial staff and carry out source material editing making.
(5), editorial staff submits to responsible editor by the material of making and audits.Examination & verification by completing the making of column content, and the chief editor who submits to carries out column content examination & verification; Examination & verification does not remodify material by returning to editorial staff.
(6), chief editor column content is audited, examination & verification by and submit to editor-in-chief and carry out the final review of column content; Examination & verification does not remodify the editor of column content by returning to responsible editor.
(7), editor-in-chief audits column content, examination & verification is carried out program with supervisory control system and is delivered playing task by being directly submitted to deliver; Examination & verification does not remodify the editor of column content by returning to chief editor.
So far, the auditing flow of video frequency program finishes.In the situation that column planning and whole day listing do not change, step (1) to step (4) is not the every flow process that daily must process, only needs execution step (5) to step (7) to carry out the examination & verification of concrete programme content every day.So both can ensure the safety of programme content, processing response speed that again can elevator system.
Referring to Fig. 1, network direct broadcasting unit is made up of live secure verification module, live source access module and streaming coding module; Live secure verification module is carried out safety certification to user; After safety certification success, user is linked into streaming coding module by live source access module by the on-the-spot broadcasting vision signal deriving from outside information dissemination net system, and in streaming coding module, be encoded to and deliver the streaming media video data form of supporting with Monitor And Control Subsystem, the on-the-spot broadcasting vision signal of generating encoded.
In the present embodiment, live secure verification module is embedded device, the built-in card reader of this equipment, keyboard and memory.Reading user by card reader holds identity IC-card user identity is verified.As user does not carry IC-card, can select manually to input password by keyboard, when user's three bad passwords of input continuously, this user account was by locked 1 hour.The user profile of preserving in the identity information of equipment by comparison user input and memory, checking examine user identity correct after, live source access module is connected internal circuit work.Live source access module adopts the higher audio-video collection device of signal to noise ratio to form, for accessing and the audio-video signal of Gather and input.Audio-video signal transfers to streaming coding module to encode after gathering.In the present embodiment, streaming coding module is made up of image workstation, adopts Intel i5 2500K processor, and 1GB exclusively enjoys video memory video card, and the high-speed superior Video coding of the 8 road different contents service that provides can be provided.By strengthening the hardware performance of image workstation and accelerating, can promote the do not go the same way total quantity of live video stream of output.The stream media format of streaming coding output is for H.264, and resolution is 720 × 576, and frame speed was 25 frame/seconds.
Referring to Fig. 3, deliver with Monitor And Control Subsystem composition and comprise and deliver broadcast unit, monitoring passback unit and signal gathering unit, wherein:
Delivering and broadcasting unit is to form by delivering sending module, multiple delivery receiver module and multiple program playing module;
Deliver sending module receiving video program, programme, user control signal and from the event handling signal of monitoring passback unit, in delivery sending module, video frequency program is after video flowing is encrypted, with programme, user control signal and event handling signal carry out session interaction encryption jointly, by the two protocol modes of binary channels using the video frequency program of delivering through data channel and programme and through the user control signal of real-time channel delivery and event handling signal as delivery signals, double-circuit aggregation networks by telecommunications E1 special line and the E1 of UNICOM special line composition is delivered to each delivery receiver module, each delivery receiver module and each program playing module are encapsulated in respectively in each embedded device, each receiver module of delivering sends and starts play signal to program playing module after delivery signals is decrypted and is preserved, and user control signal and event handling signal is sent to the front-end processing module of monitoring passback unit simultaneously, program playing module will be according to programme output video programme signal after detecting from the beginning play signal of delivery receiver module, waits for from monitoring the troubleshooting signal of the front-end processing module that returns unit for the treatment of the abnormality of program playing module simultaneously,
In concrete enforcement, deliver sending module and adopt the operation of windows method of service, in the time of each startup of server, automatically move, and by the main service of protection process monitoring, exit situation once note abnormalities, start immediately this service, and by details log, guarantee that out of service time is the shortest, and follow-up locating program abnormity exits problem; Send database by timing scan, initiatively connect front end broadcast nodes and set up communication, support breakpoint transmission simultaneously, support backstage to download, be supported in the delivery under program resting state, also support real-time update play content; Scanning frequency is customizable, is defaulted as 30 seconds/time; Sending database adopts Microsoft SQL Server 2008 R2 to ensure performance and fail safe; Data delivery adopts the double-circuit aggregation networks of telecommunications E1 special line and the E1 of UNICOM special line composition, when increasing bandwidth, also provides redundant ability for delivering network, adopts in addition the mode of the two agreements of a kind of binary channels to ensure the Internet Transmission of high real-time signal; By video flowing cryptographic algorithm, the video frequency program of delivering is encrypted, encrypt video frequency program, programme, user control signal and event handling signal are encrypted by session interaction, ensure that data can illegally not delivered, illegally intercepted and illegally distort; Delivering receiver module and program playing module is deployed in the embedded playback equipment of front end, this embedded device possesses H.264 hardware decoding function, use DVI interface to export decoded vision signal, built-in 32GB internal memory and the SD card slot of comprising of equipment, by upgrading internal memory or the direct capacity that inserts SD card expansion store video programs at SD card slot;
Video flowing cryptographic algorithm flow process as shown in Figure 4, delivering sending module receives after video frequency program and programme, video frequency program is put into frame of video buffer area, by aes algorithm, the frame of video of buffer area is encrypted, then according to IP address, the video frequency program after encrypting is delivered to front end together with key; Deliver receiver module and receive and the key of encrypting and packet are carried out to fail safe verification deciphering with password afterwards, determine that transmission just sends the data to program playing module after data security;
Session interaction encryption flow figure as shown in Figure 5.Session transmitting terminal first sends random number request to session receiving terminal, after meeting with a response, will after the random number receiving, password and random number character string be combined, system password content comprises Arabic numerals, capital and small letter English alphabet and punctuation mark, length be 16 above and can not comprise English word and the Chinese phonetic alphabet, encryption mechanism adopts password and the random number character string obtaining is combined, generate irreversible encrypted characters string, combinational algorithm is customizable, here taking direct splicing as example: character string odd bits is carried out to MD5 algorithm for encryption, even bit carries out 3DES algorithm for encryption, session receiving terminal receives compares encrypted result character string after encrypted characters string and local cipher comes to the same thing, and generates the Key of this session to session transmitting terminal, session transmitting terminal is set up transfer of data communication after receiving session Key and transfer of data response, starts the content of session and session Key to be transferred to session receiving terminal, and session Key ensures mutual correctness as a label symbol, session receiving terminal comparison current sessions Key, correct rear reception session content is also returned.
Shown in Fig. 5, monitoring passback unit is by passback sending module, passback receiver module, passback processing module, passback memory module, emergency response module and front-end processing module composition;
Passback sending module receives from the site environment parameter of signal gathering unit and monitoring audio-video signal, and site environment parameter and monitoring audio-video signal are carried out sending to passback receiver module as Real-time Monitoring Data after session interaction encryption; Passback receiver module is for carrying out safety check from the Real-time Monitoring Data of passback sending module, and will be sent to passback processing module by the Real-time Monitoring Data of safety check, the fail safe that passback processing module is broadcasted video frequency program and site environment parameter by automatic decision that Real-time Monitoring Data is compared, for occurring that abnormal video frequency program or site environment parameter send event handling signal to emergency response module, while output monitoring information is also put into passback memory module by real-time monitor data; By emergency response module, event handling signal is broadcasted to unit by delivery and be delivered to front-end processing module; Front-end processing module is exported emergency treatment signal for event handling signal according to event level, and sends troubleshooting signal to program playing module;
In concrete enforcement, passback sending module receives from the site environment parameter of bus converter with from the monitoring audio-video signal of audio frequency and video processing module, after encrypting, sends to passback sending module through double-circuit aggregation networks by session interaction, passback receiver module completes the reception of real-time monitor data and the decoding of audio frequency and video, and site environment parameter and decoded audio-video document are sent to passback processing module, monitor messages such as audio-video monitoring content, site environment parameter, warning information is returned to Surveillance center by passback processing module, simultaneously by the passback storage of data and being saved in data storage cell of delivery data, the realization of monitoring content fail safe is by passback audio-video document and local storage audio-video document are compared, provide immediately warning information once note abnormalities, trigger corresponding controlling mechanism according to different warning information simultaneously, warning information is three grades: send troubleshooting signal and inform monitor staff from trend emergency response module for general device abnormal conditions, extremely pass through video monitoring for unattended operation scene, acousto-optic, the modes such as note are informed monitor staff, send emergency treatment signal and inform monitor staff for front end play content abnormal conditions, have access to and the function such as parameter history curve analysis in order to realize monitoring history, passback memory module saves the data of passback, utilize IP SAN technology to realize calculating, integration and the storage of data, preserve delivery data is also the consistency in order to ensure to return monitor data and delivering content simultaneously, emergency response module provides control signal according to different alarm levels, automatically complete the processing to warning information by front-end processing module, the control signal of front end is had to two kinds: emergency treatment signal and troubleshooting signal, emergency treatment signal refers to and detects when front end play content is abnormal, provide immediately large-screen shutoff signal, guarantee discomfort even illegal contents can not broadcasted by large-screen, and troubleshooting signal for example refers in the time that front end playback equipment cannot respond, the equipment that carries out unattended operation scene by modes such as remote reset playback equipments recovers.
Shown in Fig. 5, signal gathering unit is made up of transducer, data processing module, bus converter, audio-video collection module and audio frequency and video processing module;
Transducer is for gathering the site environment parameter including infrared, gate inhibition, power supply, cigarette sense, temperature and humidity, after data processing module is processed, by bus converter, site environment parameter is converted to network signal and sends to monitoring to return the passback sending module of unit; Audio-video collection module collection monitoring audio-video signal, after processing, sends to the passback sending module of monitoring passback unit by audio frequency and video processing module.
In concrete enforcement, place a DVR of supporting four road video inputs in each far-end broadcast nodes, according to transmission bandwidth condition, gather the real-time broadcast state of four road D1 and pass back to Surveillance center.Four road video acquisition signals comprise: the real-time output of first via video input playback terminal, for the real-time examination & verification to playback terminal broadcast content; The second road video input is installed on the wide-angle rifle formula video camera of large-size screen monitors front end, for the real-time examination & verification to the actual broadcast of large-size screen monitors effect; Third Road video input is installed on large-size screen monitors control cubicle or controls the rifle formula video camera of machine room outside, and warning function is provided simultaneously, prevents that other people from deliberately destroying or the normal broadcast of illegally interference playing device; Si road video input is installed on the intelligent camera of the outside correct position of large-size screen monitors, for checking and add up large-size screen monitors front end state and program viewing situation.For fear of occurring that video broadcasts normally but the abnormal situation of audio frequency, the audio signal that system is also broadcasted large-screen gathers, and completes the collection of audio signal by configuration audio encoding chip simultaneously; In order to ensure allocated bandwidth, audio frequency and video processing module is used H.264 efficient video coding technique, and allocation table and the code check code stream of Erecting and improving simultaneously, for the not high monitoring of level of security, can, by customed passback, reduce the frame number of passback per second.The site environment parameters such as transducer collection is infrared, gate inhibition, power supply, cigarette sense, temperature, humidity also provide extendible sensor interface, after data processing module mould/number conversion, by bus converter, RS485 bus signals are converted to ethernet signal.
Referring to Fig. 6, extendible multiple LED display units divide and are on different geographical position, show for receiving the Long-distance Control of delivering with Monitor And Control Subsystem.Each LED display unit is made up of the sending card being connected successively (as shown in Figure 3), multifunction card, environmental monitor, receiving card, LED display curtain.Wherein sending card is used USB and DVI interface to be connected with delivery and Monitor And Control Subsystem, wherein USB interface transmission of control signals, DVI interface transmission video signal.Sending card sends to receiving card after video program data is encrypted, and video programming signal is play and shown at LED display curtain after deciphering via receiving card.Sending card, receiving card and environmental monitor are connected by netting twine and transmit data.Multifunction card is used for realizing the switching on and shutting down of LED display curtain, supports manually and two kinds of modes of automatic control switch machine.Environmental monitor comprises Temperature Humidity Sensor and illuminance transducer, for monitoring LED screen periphery humiture and illuminance information.In concrete enforcement, multifunction card arranges LED display curtain 9:00AM every day start, 22:00PM shutdown.Smart brightness regulates and gathers ambient brightness by illuminance transducer, according to the threshold decision of system setting and adjust display screen intrinsic brilliance; In the time that ambient brightness is less than or equal to 12000lx, it is 60% that screen intensity is set, and when ambient brightness is greater than 12000lx, it is 80% that screen intensity is set.Intelligent temperature regulates and gathers ambient temperature by temperature sensor, according to the threshold decision of system setting adjustment, display screen intrinsic brilliance is set.When ambient temperature is more than or equal to 50 degrees Celsius, but while being less than 65 degrees Celsius, facility screen intensity is 50%; When ambient temperature is more than or equal to 65 degrees Celsius, the automatic powered-down of display screen.
Claims (3)
1. outdoor electronic information dissemination net system, is characterized in that system composition comprises material gather and edit unit, video frequency program editing unit, network direct broadcasting unit, delivery and Monitor And Control Subsystem and extendible multiple LED display unit;
The described material unit of gathering and editing, for receiving material vision signal, and record, coding and edit-modify, generate pending trial video frequency program;
Described video frequency program editing unit is to form by uploading security authentication module, video frequency program storehouse server and program editing server; The described security authentication module of uploading carries out safety certification to user, and the finished product video frequency program deriving from outside information dissemination net system is uploaded to video frequency program storehouse server by user through safety certification; Described video frequency program storehouse server is for storing described finished product video frequency program and by the material pending trial video frequency program that unit generates of gathering and editing, for program editing server calls; Described program editing server is set different user rights and auditing flow, user carrys out the dot information temporally of layout video program play in authority separately according to auditing flow, content to described dot information temporally, pending trial video frequency program and finished product video frequency program is audited, and generates video frequency program to be broadcast and programme to be broadcast;
Described network direct broadcasting unit, is made up of live secure verification module, live source access module and streaming coding module; Described live secure verification module is carried out safety certification to user; After safety certification success, user is linked into streaming coding module by live source access module by the on-the-spot broadcasting vision signal deriving from outside information dissemination net system, and in described streaming coding module, be encoded to and deliver the streaming media video data form of supporting with Monitor And Control Subsystem, the on-the-spot broadcasting vision signal of generating encoded;
Described delivery and Monitor And Control Subsystem, for receiving video frequency program to be broadcast, programme to be broadcast and the encoded on-the-spot broadcasting vision signal from network direct broadcasting unit from video frequency program editing unit; Long-rangely be delivered to described LED display unit on-the-spot broadcasting vision signal is play, and be delivered to described LED display unit and treat and broadcast video frequency program and play according to programme to be broadcast is long-range; The real time status that telemonitoring and control are play simultaneously; The picture passback storage that LED display unit is shown is in order to having access to;
Described extendible multiple LED display units divide and are on different geographical position, show for the Long-distance Control that receives described delivery and Monitor And Control Subsystem;
Described delivery and Monitor And Control Subsystem have the broadcast of delivery unit, monitoring passback unit and signal gathering unit:
It is to form by delivering sending module, multiple delivery receiver module and multiple program playing module that unit is broadcasted in described delivery;
Described delivery sending module receiving video program, programme, user control signal and from the event handling signal of described monitoring passback unit, in described delivery sending module, described video frequency program is after video flowing is encrypted, with programme, user control signal and event handling signal carry out session interaction encryption jointly, by the two protocol modes of binary channels using the video frequency program of delivering through data channel and programme and through the user control signal of real-time channel delivery and event handling signal as delivery signals, double-circuit aggregation networks by telecommunications E1 special line and the E1 of UNICOM special line composition is delivered to described each delivery receiver module, described each delivery receiver module and described each program playing module are encapsulated in respectively in each embedded device, described each delivery receiver module sends and starts play signal to described program playing module after described delivery signals is decrypted and is preserved, and sends to described monitoring to return the front-end processing module of unit user control signal and event handling signal simultaneously, described each program playing module according to programme output video programme signal, is waited for the abnormality for the treatment of program playing module from the troubleshooting signal of the front-end processing module of described monitoring passback unit after detecting from the beginning play signal of described delivery receiver module simultaneously,
Described monitoring passback unit is by passback sending module, passback receiver module, passback processing module, passback memory module, emergency response module and front-end processing module composition;
Described passback sending module receives from the site environment parameter of described signal gathering unit and monitoring audio-video signal, and described site environment parameter and monitoring audio-video signal are carried out sending to described passback receiver module as Real-time Monitoring Data after session interaction encryption; Described passback receiver module carries out safety check for the Real-time Monitoring Data from described passback sending module, and will be sent to passback processing module by the Real-time Monitoring Data of safety check, the fail safe that described passback processing module is broadcasted video frequency program and site environment parameter by automatic decision that Real-time Monitoring Data is compared, for occurring that abnormal video frequency program or site environment parameter send event handling signal to described emergency response module, while output monitoring information is also put into described passback memory module by real-time monitor data; By described emergency response module, event handling signal is broadcasted to unit by described delivery and be delivered to described front-end processing module; Described front-end processing module is exported emergency treatment signal for event handling signal according to event level, and sends troubleshooting signal to described program playing module;
Described signal gathering unit is made up of transducer, data processing module, bus converter, audio-video collection module and audio frequency and video processing module;
Described transducer is for gathering the site environment parameter including infrared, gate inhibition, power supply, cigarette sense, temperature and humidity, after described data processing module is processed, by described bus converter, site environment parameter is converted to network signal and sends to described monitoring to return the passback sending module of unit; Described audio-video collection module collection monitoring audio-video signal, after processing, sends to the passback sending module of described monitoring passback unit by audio frequency and video processing module.
2. outdoor electronic information dissemination net system according to claim 1, is characterized in that, the described material unit of gathering and editing is to be made up of video signal receiver, material collection server and editing server; Described video signal receiver receives material vision signal, is the signal format that material collection server is supported by the format conversion of described material vision signal, and the signal after transmission conversion is to material collection server; The signal of described material collection server after to described conversion recorded, and is encoded into video frequency program; Login the video frequency program after described editing server editor and amendment material collection server code by user, generate described pending trial video frequency program.
3. outdoor electronic information dissemination net system according to claim 1, is characterized in that, communication network and the Internet the Internet of described radio hookup net system are isolated, and isolation method is the isolation of VPN virtual network or physical network isolation.
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| CN103023890B (en) * | 2012-11-29 | 2018-10-16 | 中兴通讯股份有限公司 | New media service management system and its application process |
| CN103702233B (en) * | 2013-12-16 | 2017-11-10 | Tcl集团股份有限公司 | A kind of system and method for realizing that network virtual is live |
| CN105025317A (en) * | 2015-06-04 | 2015-11-04 | 钱治安 | A campus medium management method |
| CN104902323A (en) * | 2015-06-18 | 2015-09-09 | 西安诺瓦电子科技有限公司 | Media playing scheme publishing method and device |
| CN105049951A (en) * | 2015-07-06 | 2015-11-11 | 无锡天脉聚源传媒科技有限公司 | Editing method and device for editing list |
| CN108174291A (en) * | 2016-08-31 | 2018-06-15 | 陈丽专 | A kind of monitoring device |
| CN109040527A (en) * | 2018-08-10 | 2018-12-18 | 苏州塔林博卡信息科技有限公司 | Outdoor electronic information simultaneous broadcast network system |
| CN109195024B (en) * | 2018-08-24 | 2019-07-26 | 深圳爱克莱特科技股份有限公司 | A kind of lamp light control system data processing system based on stream media technology |
| CN109660822A (en) * | 2018-12-17 | 2019-04-19 | 深圳市睿智物联科技有限公司 | A kind of method and system that long-range control LED Architectural Media screen preview plays |
| CN109905484A (en) * | 2019-03-12 | 2019-06-18 | 杭州联驱科技有限公司 | Display system and display control method |
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| CN101783873A (en) * | 2009-01-19 | 2010-07-21 | 北京视典无限传媒技术有限公司 | Digital multimedia information transmission platform |
| CN101631205B (en) * | 2009-08-12 | 2011-07-20 | 北京中科大洋科技发展股份有限公司 | Networked and documented method for reviewing digital media programs |
| CN102143353A (en) * | 2010-02-02 | 2011-08-03 | 捷达世软件（深圳）有限公司 | Method for real-time collecting video |
| CN102291451B (en) * | 2011-08-09 | 2013-09-25 | 上海交通大学 | Interactive digital media information service electronic label network system |
| CN202475667U (en) * | 2012-03-29 | 2012-10-03 | 安徽大惠新道文化传媒有限公司 | Outdoor electronic information broadcast network system |
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