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Media Asset Management System——IntroductionPosition：Product>>Media asset
System main function
With the development of audio and video industry, radio and TV industry, the amount of audio and video programs is increasing. The traditional method is faced with many problems: (1) the life of the tape is limited. (2) a variety of formats coexist, often to convert the format of the decline in the quality, efficiency, the material, the program and the exchange between the unit and the unit of the unit. (3) with the rapid development of IT network technology, the traditional tape storage and transmission mode can not meet the requirements of interactive video on demand.
These factors are in urgent need of a new technology and new method to solve the above problems. On the other hand, the popularization of network technology has provided the soil for the establishment of media asset management system, and the media asset management system came into being.
1.Media data acquisition and management
One of the important tasks of the media asset management is to transfer the audio and video materials to the media asset management system in the digital format, so it is not only a direct collection of satellite signals, but also the collection of video tapes. At present, the collection process of the collection technology of the card workstation (collection card) is used to collect the material.
On the acquisition of video data stream, it is usually stored in two formats, one is the high bit rate video data stream, such as MPEG-2 or DV format, for editing, production, broadcast; one is low bit rate video data stream, such as MPEG-4 or WMV format, for online preview, video on demand, etc..
For high bit rate video data stream, if you use MPEG-2 format to store, video sampling data stream is 50Mbps, 384Kbps, 48KHz, MPEG-2, 1 x 576 (PAL system), which is about 22GB of storage space. Compressed MPEG-2 data file, can be directly used for playing, editing, and other different purposes.
For low bit rate video data stream, it is recommended to use Microsoft's WMV format storage, WMV compression parameters are set as: video data compression rate using 256Kbps, audio sampling data stream using 96Kbps, 22.05KHz, stereo, video screen resolution 320 x 240, such 1 hours of video screen, storage space with WMV format, approximately 110MB.
When the data stream is stored in two formats, the video data stream can be directly collected for high bit rate. The system can automatically generate the low bit rate video data stream according to the high bit rate video stream.
2. Media data storage management
Storage is the core of the media asset management, the ability of the media asset management system is the focus of the media asset management system. How to ensure data consistency, security and reliability, to achieve centralized management of different data, to achieve the data on the network to access, to achieve different host types of data access and protection, etc., are all media asset management to solve the problem. Storage (Area Network SAN) storage solution is adopted in this system, and the storage structure is used in three levels. Storage medium, the use of large capacity of the disk array (SCSI), data flow tape and optical disc library, through these three to provide an unlimited space and scalable storage system. Disk array is a kind of storage medium based on RAID technology, which is connected with the host through SCSI or optical fiber. SCSI Ultra3 interface is used to connect hard disk, and through different RAID levels to the number of hard disk drive together to form an array, so that the host as a large hard disk to use, data are selectively distributed on a number of hard disk, hard disk parallel access data, greatly improving the I/O performance, thereby improving the overall performance of the system.
In the data storage solution, there are a variety of flexible solutions:
①Only use disk array. When the media data acquisition, the high bit rate data file is stored on the CD, and the low bit rate data file is stored in the disk array.
②Magnetic disk array. The commonly used media file, including the high bit rate and low bit rate data files, stored in the disk array, all the media files stored in the tape library. "Common media files" may be used in a certain period of time, but in another time period is not commonly used. Therefore, data transfer system to the "common media file" for management, when the set of time, a file is rarely accessed, the file may be deleted to release the storage space for other "common media file" use.
③Disk array, magnetic tape library, CD-ROM library. When the video file is very long, can be combined with the use of disc library, the video data files on the disc placed in the CD cabinet, when the need for media files in the disk array, magnetic tape library can not be found, in the CD-ROM library to find, to find the media copy to disk array to use.
This project storage scheme is proposed to adopt the scheme, because in this case, the video data file is generated by 50Mbps data sampling rate. 1 hours of video data is about 22GB of storage space, so large file storage is not suitable for the CD.
3.Media data management
Mainly to complete the digital video files of the security management and use management. The media file upload, download, broadcast rights, according to the classification of media files are authorized, so that different departments can only operate with their own media files. When users download media files, you need to submit the use of download media files, so as to strengthen management.
When a user to a certain kind of media file does not download permissions, and the temporary need, you can submit a download application, download the media file for use, the administrator approval, you can download.
For all media files to download, the system will automatically record the time to download media files, download the IP address of the computer, download the user's ID, in order to query.
In the use of management, another important job is to provide users with different video data flow. Users of video data need to be different, such as different encoding format, different compression rate, but the user needs of these different video data stream, can be generated in the original high bit rate archive file, the user presents different data format requirements, the server automatically transcoding operation to generate user needs of video data files, to provide users with. It is recommended to use a separate server to complete the work.
4. Media data cataloging and retrieval
The cataloging of the media data is based on the standard of broadcasting and television audio-visual material. For each program, the program is divided into program layer, layer, scene layer and lens layer. Each level is described separately, and the film is based on the layer of fault, the scene layer, and the lens layer. Its data organization structure is as follows：
In the catalog, you can watch the video program side to catalog, when the need of the fragment layer, the scene layer, the lens layer, you can directly access the corresponding video clips by clicking into point or point button, and then by the background service program in the original high bit rate file file, directly generate the video file, do not need to repeatedly capture video files.
Media information system catalog reference interface, as follows：
On the retrieval of media files, program layer, layer, scene layer, lens layer can be retrieved separately, each of which can be described as a retrieval portal, the results can be printed or exported to Word, Excel, XML document.
Provides a text search function, the user input of any search words, any field in the case, programs, scenes, scene, shot retrieval, as long as the search words, hit the record.
5. Media data dissemination
Media data management is not separated from the release of media data. For media information released to the public, the system administrator can determine which program is released, which program is not released. The public uses the browser, through the common retrieval method to be able to retrieve, play the content of the program. Users can also download the appropriate video data file.
Media information system information dissemination reference interface, as follows：
Public access to media data information dissemination system through the internet.
Equipment archives management system——IntroductionPosition：Product>>Equipment archives
Equipment archives management system
一、System objective
Equipment archives information management system V3.0, mainly to solve the TV station, radio station, power companies and other equipment to have a large number of equipment and equipment management, equipment management, equipment maintenance management and equipment management, etc., and to achieve the device's online search, borrow applications, borrow approval, real equipment management paperless office.
Equipment information management system V3.0 is a small local area network that can be docked with the existing network system. The system uses the current popular TCP/IP network structure, the database uses SQL Server MS series (also can connect Sybase, Informix, Oracle and other types of database system), the database system can also use the TV station to have the database system, do not need to install.
The system works in the mode of multi layer structure, set up the database server and application server, in order to realize the fast database access and application program. The system uses C/S and B/S to combine the work mode, improve the flexibility, security and convenience of the system operation. Management can use the C/S program to the system data for deep level of maintenance and authority setting, fully guarantee the system data security; ordinary users only use the browser to access system, ordinary users do not need to install any program, only the browser can access system data, so that the maintenance of the system is very convenient and flexible.
In this system, the use of bar code management, equipment and operation of the user, the user and equipment through the bar code to distinguish their uniqueness. User identification is also supported by other methods, such as: fingerprint identification, IC card identification, RFID wireless identification, etc..
二、System function introduction
2.1 Equipment file management
Management of the file information of the equipment. To establish a database file for a device that needs to be managed, the information required to be recorded is as follows:
Barcode, brand name, model, specification, serial number, functional description, category, equipment accessories (to equipment to manage), place, service life, the purchase price, purchase date, technical information (product specification image or a simple text description), the state of the library, collar with time, Proxy Companies.
Small accessories in the form of notes, to provide a list of accessories.
Proxy Companies need to establish a special file, the storage of the Proxy Companies's company name, company address, contact, fax, telephone, Email, web site.
The system provides the function of the equipment file inquiry, any retrieval field can be used as the entrance, the retrieval condition can carry on the logical operation or carries on the two retrieval, the retrieval result may print the output or the output to the Excel document.
2.2 Equipment maintenance management
Management of equipment maintenance. The system records the following information: barcode equipment repair, date, repair units, accessories, repair, warranty period end date (within the warranty period, the warranty period, repair, maintenance and repair parts travel), maintenance costs, replacement parts and parts prices, inspection fault phenomenon and actual failure, maintenance and handling take, take notes, and user date.
The system provides query function according to the equipment maintenance records, bar code, date, maintenance, repair repair units, handling query and maintenance record.
On the results of the query, the maintenance cost of the equipment can be counted and the maintenance record is printed.
2.3 Equipment scrap management
Management of equipment. The system records the following information: the equipment bar code, the scrap date, the scrap reason, the auditor (5-6 person).
The system provides end-of-life records query function, can according to the equipment of bar code, retirement date trial, journalist, audit, approval, approval number query equipment scrap record.
2.4 Equipment spare parts management
Spare parts for maintenance equipment for maintenance equipment. Equipment spare parts of the description of information are: models, part number, part name, unit price, quantity, the number, the date, the date, the leader, notes.
The system provides the entrance to the search terms of the parts number, the model and the collar.
Provide spare parts into the library and the library's query and inventory statistics.
2.5 Equipment management borrowed
Management of the loan and return of equipment.
2．5．1Equipment borrowing management
The use of equipment to record. System records the following information：
Borrow the date, the use of human work permit number, equipment bar code, accessories (optional input), the tab, the program name, the date of the pre. Provide query and statistical functions, in accordance with the date of use, borrow, watch people, handling query equipment borrowing records and statistics of equipment use frequency.
There are two input modes when the input is borrowed:
1 Direct input from the bar code.
2 Select some of the devices, select the input.
2．5．2Equipment return management
The return of the equipment is recorded. Return of the loan, the borrower, the program name, the device code can be transferred to borrow records, to achieve the return, the return of part of the equipment, the remaining equipment to do other programs. System records the following information:
The return date, the return of work permit number, the borrower work permit number, bar code, handling equipment. Provide query and statistical functions, in accordance with the date of return, return, the borrower, equipment handling equipment, bar code query return records and statistics of equipment return quantity.
2．5．3Equipment borrowing statistics
By using the number of days or the number of devices, the use of statistical equipment, given the histogram, pie chart, line chart analysis.
2.6 Equipment technical data management
Management of technical information for equipment. When the user retrieves the device, the technical information of the device can be directly read on the Internet. The main records are as follows:
Data name, technical information bar code, the corresponding equipment, the number and bar code, data type (pictures, text, video), the information content of the summary, subject terms, photographic images, data storage location, borrowing records, notes, etc.
Provide query and statistical functions, all of which can query the technical information content of the equipment and make the corresponding statistics and print.
2.7 Equipment inspection management
Test results for equipment required for periodic inspection. Test results are: equipment bar code, the date of detection, detection, detection results (text description). Provide statistics, search, print function to test record.
2.8Equipment migration management
To move from one place to another, to modify the current location of the device in the device file and record the migration of the device. Equipment for the transfer of records with the device's borrowing records.
2.9 Computer room management
Management of the room for the user to use. Main records: the name of the computer room (and equipment in the location of the equipment storage location), the engine room picture, the engine room engineering picture, the engine room staff's work number (and user management of the user), the engine room use price (per hour cost). To provide information of the computer room editor, maintenance function. All images of the engine room can be scanned directly into the computer, providing the editing function of the image, directly supporting the scanner.
2.10 User management
Management of the operation of the system. Mainly records the user's information:
User code, login, login password, user name, the Department, user calls, with authority. User status (at work, has been off the table, etc.). You can assign different permissions for different users, so that it has a different use function, only the system administrator can change the user's authority.
2.11 Borrow and approval of the equipment
Users can use the browser to retrieve the device and put forward the use of equipment reservation, if the user 's booking time has been reserved for other users in advance, then the user can not make an appointment to the time or the device. Online equipment booking interface as shown in figure 2.11.1.
The user has to make an appointment with the approval authority approval, the application is sent to the warehouse management interface, so that the management of the warehouse can see each user sent over the application, for different time to use the user to prepare these devices can be used, after the loan, the user's borrowing records directly into the borrow record library, to facilitate future data query.
The approval authority for the use of equipment to be divided by the Department, a department approval request only authorized users can handle, of course, the system can authorize a user to approve one or more departments for approval.
三、B/S architecture program interface
