CN1764267A - Digital movie broadcasting system based on web remote control - Google Patents
Digital movie broadcasting system based on web remote control Download PDFInfo
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- CN1764267A CN1764267A CN 200510030115 CN200510030115A CN1764267A CN 1764267 A CN1764267 A CN 1764267A CN 200510030115 CN200510030115 CN 200510030115 CN 200510030115 A CN200510030115 A CN 200510030115A CN 1764267 A CN1764267 A CN 1764267A
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Abstract
The digital film display system based on web remote control function comprises: a system control circuit, a HDD with a drive module, a hardware interface circuit, a data deciphering and buffering circuit with a drive module, an audio and video decompression circuit with a drive module, an audio and video output circuit, a keyboard/display circuit with a drive module, a USB interface circuit with a drive module, a RS232 interface circuit, an Ethernet interface circuit and power circuit, a UART drive module, a Ethernet drive module, an OS, a browser, a HTTP server, and a user application program module. This invention exploits user interactive mode based on browser/HTTP server, extends interactive range, and can realize much complex function.
Description
Technical field
What the present invention relates to is a kind of equipment of digital movie technical field, specifically, is a kind of digital cinema playback system based on the web remote control function.
Background technology
Digital cinema playback system is the important component part of digital movie system, the transformation of analog to digital be motion picture technique development so far, to the change for the third time after colored of sound, black and white, also be the most essential so far once change of film development continue noiseless.This changes film creation into and has brought abundant flexibly processing means, propagated for film and contributed top experience fast and that distribute approach cheaply, brought high-fidelity for film appreciation.
Find through retrieval prior art, Chinese patent application number: 200310107959.7, patent name: portable high resolution number of degrees word movie theatre playback equipment, this patent readme is: a kind of portable digital movie theatre playback equipment that belongs to electronic device field comprises: cpu control circuit, memory circuitry, timing sequencer, hard-disk interface circuit, deciphering and data buffer circuit, decoding circuit, Voice ﹠ Video signal output apparatus, control keys, hard disk drive, power supply and input interface circuit.The output of hard disk is coupled by hard-disk interface circuit and deciphering and data buffer circuit input, directly be fed to decoding circuit through the dateout after data decryption and the buffering processing, the output of decoding circuit links to each other with the audio signal output circuit input end with video signal output circuit respectively, and Voice ﹠ Video signal output apparatus output is respectively to outside digital projector and sound equipment public address equipment output video and audio signal.Cpu control circuit is connected with memory circuitry and control keys, also with the deciphering parameter of deciphering and data buffer end is set and is connected with the control end of timing sequencer.The man-machine interface of this system is supervisory keyboard and display screen, operating personnel must execute-in-place and this Play System of monitoring, for the large-scale luxurious digital camera with multifunctional hall, the broadcast of many people's controls and monitoring digital movie must cause the waste of manpower and the inconvenience of management.
Summary of the invention
The objective of the invention is at deficiency of the prior art, a kind of digital cinema playback system based on the web Long-distance Control is provided, make the broadcast and the management work of digital movie become simple more and flexible, have simple to operate, convenient management, characteristics cheaply, expand the mutual scope of system largely, strengthened the interactive function of user and system.
The present invention is achieved by the following technical solutions, the present invention includes: system, control circuit, hard disk drive, the hard-disk interface circuit, deciphering and data buffer circuit, the audio frequency and video decompression circuit, the audio frequency and video output circuit, keyboard and display circuit, usb circuit, the RS232 interface circuit, ethernet interface circuit and power circuit, hard disk driving module, the UART driver module, the Ethernet driver module, keyboard/driver module, the USB driver module, decryption technology is according to the buffering driver module, audio frequency and video decompression circuit driver module, operating system, http server, browser, user-application module.
Hard disk is connected with the hard-disk interface circuit, hard-disk interface circuit, keyboard/display circuit, usb circuit, RS232 interface circuit, ethernet interface circuit, deciphering are with data buffer circuit and look the audio decompression circuit and all link to each other with system, control circuit, deciphering is connected to the decompression circuit of looking audio frequency with the output of data buffer circuit, the decompression circuit of looking audio frequency connects data to output to looks audio output circuit, looks audio output circuit then respectively to outside digital projector and stereo set output video and audio signal.Power supply provides required working power to each circuit;
Hard disk driving module, UART driver module, Ethernet driver module, keyboard/driver module, USB driver module, decryption technology are responsible for the interface of operating system and corresponding hardware components according to the extension as operating system of buffering driver module, audio frequency and video decompression circuit driver module.The basic operation of their direct control hardwares and to operating system provide the operation specific hardware basic skills.User-application module, http server utilize the equipment interface of the public standard service standard that operating system provides to finish systemic-function based on the digital cinema playback system of web Long-distance Control jointly.Concrete, http server is responsible for accepting the connection request from the telecommunication network browser, and the HTTP service of standard is provided to the long-distance user in the client/server mode.User-application module is used CGI and http server interface, receive and configuration that the response long-distance user sends and operational order and return response and state information, thereby finish the function that the user plays based on the digital movie of web Long-distance Control to http server.
It is as follows to the present invention is based on the major function that the digital cinema playback system of web Long-distance Control realizes:
1. video playback: realize playing function to program on local hard drive, the USB hard disk; Can add program to playlist, the display program broadcast state; Control in the broadcast comprises broadcast, time-out, F.F., rewind down, stops, and jumps to special time and plays; Also comprise the played file list creating, check, revise and delete.
2. program: realize management, carry out the exchange and the renewal of movie program by ftp server or USB hard disk to the local hard drive program.Mainly comprise FTP website management (interpolation, revise, preserve, deletion FTP website), FTP downloads and (selects corresponding FPT website, the user name password can be downloaded the digital cinema presentation on the website after checking), the exchange of USB hard disk program (can be selected the program on the USB hard disk, deletion, upload to local hard drive or the content of local hard drive is downloaded to the USB hard disk), the local program deletion (shows local hard drive the rendition list, select corresponding program to delete) and USB program deletion (show USB hard disk the rendition list, select corresponding program to delete).
3. system's setting: mainly comprise setting and change, to the change (for example setting of IP address) of the network configuration of system, to the change of the real-time clock of system and to the expansion upgrading of systems soft ware to user cipher.
4. system mode inquiry: the inquiry to all states of system is provided, and to the feedback of error message etc.
In sum, in the digital cinema playback system that the present invention is based on the web Long-distance Control, the procotol of utilizing network interface and operating system to provide, develop user interactions mode based on http server/browser, the interactive function of original keypad and LCD display in the realization system fully not only, and further expanded mutual scope with the user, can realize more more complicated interactive functions.Adopt the interactive mode of http server/browser also to bring maximum convenience to the user, support without any need for extra software, can be whenever and wherever possible on another PC computer, finish mutual control with this Play System by browser, improved the portability of system simultaneously, brought great convenience for maintenance, management and the renewal of system.
Description of drawings
The digital cinema playback system theory diagram based on the web Long-distance Control of Fig. 1 embodiment of the invention
Fig. 2 is based on the digital cinema playback system interaction concept figure of http server technology
Fig. 3 is based on the digital cinema playback system function communication module figure of web Long-distance Control
Embodiment
As shown in Figure 1, the present invention includes: hard disk drive 1, hard-disk interface circuit 2, deciphering and data buffer circuit 3, audio frequency and video decompression circuit 4, audio frequency and video output circuit 5, power circuit 6, system, control circuit 7, operating system 8, RS232 interface circuit 9, usb circuit 10, ethernet network interface circuit 11, keyboard and display circuit 12, http server 13, browser 14, user-application module 15, audio frequency and video decompression circuit driver module 16, hard disk driving module 17, UART driver module 18, Ethernet driver module 19, keyboard/driver module 20, USB driver module 21, decryption technology is according to buffering driver module 22.
Wherein the connected mode between the hardware components is: hard disk drive 1 is connected with hard-disk interface circuit 2, hard-disk interface circuit 2 links to each other with system, control circuit 7, deciphering is connected to the decompression circuit 4 of looking audio frequency with the output of data buffer circuit 3, and the decompression circuit 4 of looking audio frequency is delivered to data and is looked audio output circuit 5, looks the video and audio signal that 5 of audio output circuits are fit to outside digital projector and stereo set output respectively.Simultaneity factor control circuit 7 and deciphering and data buffer circuit 3, keyboard/display circuit 12, usb circuit 10, RS232 interface circuit 9, ethernet network interface circuit 11 link to each other.In addition, power supply 6 provides each circuit required working power.
In the digital cinema playback system based on the web Long-distance Control according to the present invention, system, control circuit is the core circuit of whole system, and this embodiment has adopted embedded type CPU (PowerPC405GP32 of IBM Corporation), and SDRAM and FLASH constitute jointly.SDRAM is used for exchange and the buffer memory and the program running space of data as the internal memory of CPU, the reflection of boot loader, linux operating system and the application program of FLASH storage CPU.
Software on system, control circuit 7 in the operational system comprises: linux real-time embedded operating system 8.As the extension of the operating system bottom, hard disk driving module 17, UART driver module 18, Ethernet driver module 19, keyboard/driver module 20, USB driver module 21, decryption technology are according to buffering driver module 22, audio frequency and video decompression circuit driver module 16.Each drive controlling the corresponding hardware unit.
Hard disk drive 1 is the memory carrier of digital cinema presentation data and information, and this embodiment selects the hard disk of IDE type for use.Hard-disk interface circuit 2 is made of the HPT371 chip and the periphery of high point company, and this chip is the bridge circuit of a kind of high performance PCI and ATA/ATAPI, and this chip is connected with PowerPC4056P32 by pci interface.
Deciphering and data buffer circuit 3 are made of FPGA, and this embodiment adopts the FPGA of Xilinx SpatanIIE series, and is connected with the high-speed peripheral interface of CPU, mainly finish interface sequence conversion, the deciphering of movie program and the function of data buffering.What this embodiment adopted is the AES enciphering and deciphering algorithm of standard; native system can not change the design of hardware circuit; the method that adopts application software to reset can realize the self adaptation adjustment of multiple manner of decryption and data bit rate output, has effectively protected user and program copyright owner's rights and interests.
The data of 4 pairs of deciphering of audio/video decoding circuit and data buffering output provide meet Moving Picture Experts Group-2 video decode and the stereo audio of MPEG-2layerII and the audio decoder of AC35.1 sound channel of high definition, thereby satisfy the broadcast request of digital movie.Audio frequency and video output circuit 5 is isolated and is driven the audio frequency and video of decoding respectively, and realization and different size and various types of digital projection projection equipment be compatibility mutually.
Control keys circuit 12 has constituted simple man-machine dialog interface, by button can realize that startup password input, program are selected, play, suspend, stopped, functions such as F.F. and rewind down.
RS232 serial interface circuit 9 can link to each other with the intelligent encryption dog based on serial ports, carries out that authentication and key provide and the restriction of broadcasting time.
Usb circuit 10 provides data-interface at a high speed, can realize the exchange and the renewal of the movie program of USB interface portable hard drive.
Network interface circuit 11 provides hardware foundation for the Long-distance Control based on web.
In order to realize Long-distance Control, need the information interaction of browser 14 and http server 13 and http server end CGI user-application module 15 based on web.The mutual of first aspect mainly is the network programming technology of using Linux socket, and the http server software of employing is Boa.Boa is a small and exquisite http server software, it is little to have the code volume, configuration is simple, support CGI, characteristics such as security performance is complete are particularly suitable for the application in the embedded system, and Boa is an open source code, can carry out necessary modifications according to the needs of system, have very high flexibility.The mutual of second aspect mainly is the principle of using the Linux interprocess communication, and native system adopts the mode of famous pipeline to realize http server end cgi script and application's data exchange.This interprocess communication mode of pipeline has creates and visits characteristics easy, that data traffic is big and access speed is fast.
The present invention has two kinds of man-machine operation interface, and a kind of is keyboard and display circuit 12 man-machine interactions; Another kind of interface is http server/browser, just can control native system easily by Web browser 14 on any one main frame.
At http server 13 ends, each independently function be exactly an independently cgi script, the user asks specific function to be finished by specific cgi script and the information interaction between the application program.
The principle of carrying out data interaction by http server/browser technology as shown in Figure 2.It can reduce the complexity that the user uses greatly, just can control native system easily by Web browser on any one main frame, has exempted the trouble that client-side program must be installed at main frame.The consideration of fail safe Network Based simultaneously, the http protocol that http server/browser technology adopts is stateless connection, after a HTTP request finishes, http server just is connected with the network of client browser and has disconnected, send request up to client next time and connect again, such interactive mode will compare safety relatively.Simultaneously can select http server software for use, utilize its ready-made security control system, about many ins and outs of Linux network security, general application and development just shielded like this with perfect security control system.Strengthened interaction capabilities with the user greatly by http server/browser technology.
Obviously, under the condition that does not break away from essence spirit of the present invention and practical range, the present invention has various deformation, improvement and substitutes.
Claims (7)
1, a kind of digital cinema playback system based on the web Long-distance Control, comprise: hard disk drive (1), hard-disk interface circuit (2), deciphering and data buffer circuit (3), audio frequency and video decompression circuit (4), audio frequency and video output circuit (5), power circuit (6), system, control circuit (7), operating system (8), usb circuit (10), ethernet network interface circuit (11), keyboard and display circuit (12), user-application module (15), audio frequency and video decompression circuit driver module (16), hard disk driving module (17), UART driver module (18), Ethernet driver module (19), keyboard/driver module (20), USB driver module (21), decryption technology is according to buffering driver module (22), it is characterized in that, also comprise: RS232 interface circuit (9), http server (13), browser (14), hard disk drive (1) is connected with hard-disk interface circuit (2), hard-disk interface circuit (2) links to each other with system, control circuit (7), deciphering is connected to the decompression circuit (4) of looking audio frequency with the output of data buffer circuit (3), and the decompression circuit (4) of looking audio frequency is delivered to data and is looked audio output circuit (5), look audio output circuit (5) then respectively to outside digital projector and the suitable video and audio signal of stereo set output, simultaneity factor control circuit (7) and deciphering and data buffer circuit (3), keyboard/display circuit (12), usb circuit (10), RS232 interface circuit (9), ethernet network interface circuit (11) links to each other, in addition, power supply (6) provides each circuit required working power; Hard disk driving module (17), UART driver module (18), Ethernet driver module (19), keyboard/driver module (20), USB driver module (21), decryption technology are according to the extension as operating system (8) of buffering driver module (22), audio frequency and video decompression circuit driver module (16), be responsible for the interface of operating system (8) and corresponding hardware components, the basic operation of their direct control hardwares also provides the basic skills of the corresponding hardware of operation to operating system (8); User-application module (15), http server (13) utilize the equipment interface of the public standard service standard that operating system (8) provides to finish systemic-function based on the digital cinema playback system of web Long-distance Control.
2, the digital cinema playback system based on the web Long-distance Control according to claim 1, it is characterized in that, http server (13) is responsible for the connection request of acceptance from the telecommunication network browser, and the HTTP service of standard is provided to the long-distance user in the client/server mode.
3, according to claim 1 or 2 described digital cinema playback systems based on the web Long-distance Control, it is characterized in that, hold at http server (13), each independently function be exactly an independently cgi script, the user asks specific function to be finished by specific cgi script and the information interaction between the application program.
4, the digital cinema playback system based on the web Long-distance Control according to claim 1, it is characterized in that, user-application module (15) is used CGI and http server (13) interface, receives and configuration that the response long-distance user sends and operational order and return to http server responds and state information.
5, the digital cinema playback system based on the web Long-distance Control according to claim 1 is characterized in that, described RS232 interface circuit (9) links to each other with the intelligent encryption dog, carries out the restriction of authentication, key management and broadcasting time.
6, the digital cinema playback system based on the web Long-distance Control according to claim 1, it is characterized in that, in order to realize Long-distance Control, by the information interaction of browser (14) with http server (13) and http server end CGI user-application module (15) based on web.
7, the digital cinema playback system based on the web Long-distance Control according to claim 1 is characterized in that, has two kinds of man-machine operation interface, and a kind of is keyboard and display circuit (12) man-machine interaction; Another kind of interface is http server/browser, just can control native system easily by Web browser (14) on any one main frame.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200510030115 CN1764267A (en) | 2005-09-29 | 2005-09-29 | Digital movie broadcasting system based on web remote control |
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| CN 200510030115 CN1764267A (en) | 2005-09-29 | 2005-09-29 | Digital movie broadcasting system based on web remote control |
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| CN1764267A true CN1764267A (en) | 2006-04-26 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008000122A1 (en) * | 2006-06-22 | 2008-01-03 | Xiamen Rico Technology Co., Ltd | A network video server |
| CN101083688B (en) * | 2007-06-28 | 2011-01-05 | 中兴通讯股份有限公司 | Apparatus and method for realizing telephone remote control through DSL |
| CN102025757B (en) * | 2009-09-21 | 2013-10-30 | 苏州君嬴电子科技有限公司 | Network technology-based display system and method |
| CN106331765A (en) * | 2015-06-30 | 2017-01-11 | 腾讯科技（深圳）有限公司 | Hardware decoding test method, terminal and server |
| CN109005427A (en) * | 2018-08-20 | 2018-12-14 | 全球播科技（北京）有限公司 | Encrypted video playback method, device and equipment, storage medium and processor |
| CN113301443A (en) * | 2021-05-28 | 2021-08-24 | 广州飞达音响股份有限公司 | Film processor |
-
2005
- 2005-09-29 CN CN 200510030115 patent/CN1764267A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008000122A1 (en) * | 2006-06-22 | 2008-01-03 | Xiamen Rico Technology Co., Ltd | A network video server |
| CN101083688B (en) * | 2007-06-28 | 2011-01-05 | 中兴通讯股份有限公司 | Apparatus and method for realizing telephone remote control through DSL |
| CN102025757B (en) * | 2009-09-21 | 2013-10-30 | 苏州君嬴电子科技有限公司 | Network technology-based display system and method |
| CN106331765A (en) * | 2015-06-30 | 2017-01-11 | 腾讯科技（深圳）有限公司 | Hardware decoding test method, terminal and server |
| CN106331765B (en) * | 2015-06-30 | 2020-06-05 | 腾讯科技（深圳）有限公司 | Hard solution testing method, terminal, server and computer readable storage medium |
| CN109005427A (en) * | 2018-08-20 | 2018-12-14 | 全球播科技（北京）有限公司 | Encrypted video playback method, device and equipment, storage medium and processor |
| CN109005427B (en) * | 2018-08-20 | 2021-06-08 | 全球播科技（北京）有限公司 | Encrypted video playing method, device and equipment and storage medium |
| CN113301443A (en) * | 2021-05-28 | 2021-08-24 | 广州飞达音响股份有限公司 | Film processor |
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