CN102026031A - Set top box - Google Patents
Set top box Download PDFInfo
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- CN102026031A CN102026031A CN2010106090234A CN201010609023A CN102026031A CN 102026031 A CN102026031 A CN 102026031A CN 2010106090234 A CN2010106090234 A CN 2010106090234A CN 201010609023 A CN201010609023 A CN 201010609023A CN 102026031 A CN102026031 A CN 102026031A
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Abstract
The invention discloses a set top box. Input signals sequentially pass through a network interface module, a demultiplexing module, a conditional access module and a video/audio decoding module of the set top box and are converted into video/audio signals for output, wherein the output end of the conditional access module is also connected with a data information processing module to output data signals, and the network interface module is provided with a copper wire HFC (hybrid fiber coax) interface, an Ethernet IP interface and an optical fiber OLT (optical line terminal) interface. The set top box combines the television, the broadband and the audio information and can support synchronous realization of video programs, and broadband access and IP telephone in real time. Thus, the invention has high universality and can be combined with more extended functions and services.
Description
Technical field
The present invention relates to a kind of set-top box, relate in particular to a kind of set-top box that can be applied to TV, broadband network and IP phone unification simultaneously.
Background technology
Conventional set-top box only realizes the reception of video frequency program, and the IPTV set-top box realizes the unification of video frequency program and broadband access, and single single channel of only supporting transmits, and both video frequency program and broadband access can not realize simultaneously, more do not have an IP phone support.Conventional set-top box is owing to only realize the reception of video frequency program, adopt simple chip circuit to realize mostly, there is not Embedded Operating System, can't support the realization of miscellaneous service and various application, and set-top box software and hardware are combined closely, and can't realize various application and professional expansion by the mode of software upgrading.Defective on the hardware causes the applied software development difficulty big, development efficiency is low, the development cost height, and software maturity is not enough, therefore can only cure applications software, various application of operator or user and business demand can't be realized, following novel professional expansion can't be satisfied more, can't back-up system and the online updating of application software
At present domestic set-top box all is to select to be fit to oneself CA by operator according to the situation of locality basically, and the hardware of traditional CA and set-top box bottom closely bundlees.Therefore, set-top box must customize CA software all kinds of and the hardware binding according to the demand of operator, is loaded in advance in the set-top box, has so both limited the versatility of set-top box, causes very big difficulty also for set-top box large-scale production and circulation.
Summary of the invention
The technical problem to be solved in the present invention is to realize a kind of policy that meets the national integration of three networks, realizes the unification of TV, broadband and voice, and can support the set-top box that realizes synchronously in real time of video frequency program, broadband access and IP phone.
To achieve these goals, the technical solution used in the present invention is: a kind of set-top box, input signal passes through Network Interface Module, demultiplexing module, the Conditional Access Module of set-top box successively and looks audio decoder module output video/audio signal, described Conditional Access Module output also is connected outputting data signals with the processing data information module, and described Network Interface Module is provided with wired copper cable HFC interface, ethernet ip interface and optical fiber OLT interface.
This set-top box also is provided with embedded type CPU, and described embedded type CPU is provided with hard disk, internal memory and set top box interface, so and embedded type CPU monitor with bus mode and set-top box module communication and to it.
Described embedded type CPU also is connected with other ancillary equipment, comprises return path and graph image encoding compression module.
The IP phone voice of described processing data information module condition of acceptance receiver module input, EPG information, internet information, value-added service information are imported embedded type CPU, export the relevant device interface of set top box interface after being handled by embedded type CPU to.
This set-top box is provided with the demodulation of two-way transport stream, and the one road is used for program watches, the one tunnel is used for performance recording or outputs to another television set watching program.
A kind of set-top box control method, this control method is provided with a plurality of modules that work alone at set top box embedded CPU, comprising: hardware abstraction layer, hardware driving, speech interface, graph image interface, video decode driving, audio decoder driving, demultiplexing and data extract, condition receive adaptation layer, middleware, application program, application programming interfaces, value-added service, value-added service interface;
Described application program and value-added service interface module have comprised the software interface and the middleware of application layer and have carried out platform, described software interface is divided into and calls local resource and two interfaces of Internet resources, and described middleware is carried out platform to the software interface program compilation.
Described embedded type CPU adopts vxworks operating system.
The invention has the advantages that unification, and can support realizing synchronously in real time of video frequency program, broadband access and IP phone TV, broadband and voice, highly versatile, and can expand greater functionality and business.
Description of drawings
Below the content of each width of cloth accompanying drawing expression of specification of the present invention and the mark among the figure are made brief description:
Fig. 1 is a machine top hardware box system block diagram;
Fig. 2 is the set-top box software module map;
Mark among the above-mentioned figure is: 1, Network Interface Module; 2, demultiplexing module; 3, Conditional Access Module; 4, processing data information module; 5, look the audio decoder module; 6, hard disk; 7, embedded type CPU; 8, internal memory.
Embodiment
The signal that receives referring to this set-top box of Fig. 1 passes through Network Interface Module 1, demultiplexing module 2, Conditional Access Module 3 successively and looks audio decoder module 5, the data-signal that receives is delivered to processing data information module 4 through behind the Conditional Access Module 3, set-top box of the present invention in addition also is provided with embedded type CPU 7, it is circumscribed with hard disk 6, internal memory 8, set top box interface 9 and other ancillary equipment, so embedded type CPU 7 is to monitor with bus mode and set-top box module communication and to it.
Concrete each functions of modules and structure thereof are as follows:
Network Interface Module 1: finish channel demodulation and channel-decoding function, send to comprise and look audio frequency and other data information transmission stream (TS), comprise wired copper cable HFC interface, ethernet ip interface and optical fiber OLT interface.
Demultiplexing module 2: select channel and extract the interested data of user, input TS stream is handled to adapt to this channel requirement, comprise that code stream input interface, PCR correction module, PSI analyze, regenerate parts such as module and user interface.
Conditional Access Module 3: adopt CA adaptation layer technology, program stream is realized descrambling, and, guarantee that validated user normally uses in conjunction with the smart card that contains identification user and memory function.
Look audio decoder and processing module 4: extract MPEG audio, video data and decoding, output to the PAL/NTSC encoder, be encoded into anolog TV signals, output to television set by the audio frequency and video output circuit again.
Processing data information module 5: handle all data messages except tradition is looked audio frequency, comprise that IP phone voice, EPG information, internet information, value-added service information etc. deliver to set-top box CPU and handle, and output to relevant device such as television set, IP phone interface etc. by CPU.
Embedded type CPU 7: be the core of top box of digital machine, handle and controller top box all working.
Hard disk 6: control by CPU and to store and reading of data.
Internal memory 8: and CPU handles data of set top box jointly.
Ancillary equipment: comprise return path, graph image encoding compression module.
Set top box interface 9: disposed 4 class physical interfaces, i.e. network interface, audio-video interface, infrared remote control interface and other satellite interfaces.
Remote controller: the user's operation and the IP phone of controller top box.
Referring to Fig. 2, the software module of this set-top-box system is specific as follows:
Hardware abstraction layer: adapt in order to realize software and hardware separation, separation between machine and card and CA, operation to the set-top box all hardware all realizes by revising register, be about to all registers and interface unified addressing, make very simply to operation registers by software, this function designs hardware abstraction layer in order to finish just.Hardware abstraction layer is the subclass of hardware driving layer, is responsible for directly editor's hardware.
Hardware drive module: by calling hardware abstraction layer, manage various peripheral hardwares and internal subsystems module, function abstract and shieldingization with these modules provide the application layer routine interface to last layer, make that the operation of application layer is directly perceived and succinct.
Embedded real-time operating system: a real time operating system VxWorks that adopts U.S. WindRiverSystem company to release.
Condition receives adaptation layer: function distinguishing and call relation according to the CA system are divided into business, general driving, descrambling 3 class adapter assemblies with it, simultaneously with the call flow standardization, have shielded the difference of relevant interface and driving, have constituted the CA adaptation layer thus.
Demultiplexing and tables of data extraction module: TS code stream demultiplexing and tables of data are extracted the control of operating.
Graph image interface module: be used for producing the required graphical interfaces of service routine such as set-top box menu, EPG, also can be used for 2D, the 3D figure in using such as video-game and quicken to show.
Voice interface module: be used to finish IP phone speech interface function.
Middleware module: middleware is the software platform of digital TV receiving system, for digital television application provides running environment and software interface.
Application program and value-added service interface module: the business interface of realizing user management, log management and audience investigation, advertisement implantation, recreation public testing, on-line payment or the like value-added service by the standard interface form.
EPG business module: provide the content description of program, the type of program, the reproduction time of program, the information such as classification of program to the user.
Software online updating module: the online updating of system and application software, and the online implantation of value-added service.
Always described, this set-top box meets the policy of the national integration of three networks, realizes the unification of TV, broadband and voice, and can support realizing synchronously in real time of video frequency program, broadband access and IP phone.Condition receives adaptation layer and realizes general CA and separation between machine and card technology; According to analysis to a plurality of CA condition receiving systems, function distinguishing and call relation according to the CA system are divided into business, general driving, descrambling 3 class adapter assemblies with it, with the call flow standardization, shield the difference of relevant interface and driving simultaneously, constituted the CA adaptation layer thus.
Embedded real time operating system technology:
Vxworks operating system has comprised several sections such as management of process, storage administration, equipment control, file system management, procotol and system applies.VxWorks has only taken very little memory space, and can highly reduce, and the system that guaranteed can be with higher efficient operation.
Hardware abstraction layer is realized the software and hardware isolation technics:
Drive Layer provides general low layer function, and hardware abstraction layer is realized these functions on hardware simultaneously.In order to respond calling of Drive Layer, hardware abstraction layer is carried out specific chip function, and editor's chip register is finished a specific function, and it is only corresponding with a kind of specific chip, so when changing hardware platform, only needing to change the relevant hardware level of abstraction can realize.
Middleware Technology:
Middleware is as one in top box of digital machine software layer independently, application software and bottom hardware and operating system are kept apart, operating system and driver have been defined unified interface, application programs has also defined unified interface simultaneously, also provides unified interface to conventional digital broadcast television business and value-added service in addition.
Application program and value-added service interface technology:
Application program and value-added service interface have comprised the software interface (API) and the middleware of application layer and have carried out platform, and API can be divided into API that calls local resource and the API that calls Internet resources again, and middleware is carried out platform and also comprised application manager.The not direct calling system resource of application program, but call by a series of local API or network AP I, that is to say that API has shielded the diversity and the complexity of set-top-box system resource layer (comprising hardware, network, interface etc.), and the set-top-box system resource is presented to application program with unified connection interface.Middleware is carried out platform and mainly is responsible for application program and api routine are compiled the local machine code that (explanation) becomes set-top box CPU to carry out, go to carry out by set-top box CPU then, like this, application program just can realize with the hardware and software platform of service node irrelevant, it is suitable for operator or application developer is developed various application programs independently and value-added service is used, and these application programs and value-added service are used and can be carried on each service node (family's set-top box) by remote mode.
Software online updating technology:
Because product is provided with hard disk, common software is upgraded the software that only needs to upgrade the hard disk stored and is got final product.Preserved user profile and server configuration information in the configuration parameter district of set-top box Flash, the configuration item of a particular importance wherein arranged---the upgrading sign.According to the agreement to the upgrading sign, the boot-loader system judges whether the needs upgrade-system according to the upgrading value of statistical indicant.In order to increase the flexibility of upgrading, allow system memory locations and variable size, in boot and kernel program, do not determine the fix information that system stores in Flash, each system component all has a storage relevant information in the system partitioning table of entire flash distribution condition in the system partitioning table but stored in the configuration parameter district of Flash, comprises the base address of Flash, the side-play amount of each assembly relative base address, the size of each assembly, the unique identification sign indicating number of each assembly etc.
Program prestores and the binary channels recording technology:
For cooperating operator to promote market and attracting the consumer to buy product, set-top box is with contents such as more built-in videos, audio frequency, recreation, education, medical treatment, shopping, and the resources bank that can conveniently insert content supplier upgrades, content supplier also can be by the DVB forms of broadcasting with content recommending and broadcasting to set-top box memory.Set-top box is also supported the demodulation of two-way transport stream: the one tunnel is used for program watches, the one tunnel is used for performance recording or outputs to another television set watching program.
In conjunction with the accompanying drawings the present invention has been carried out exemplary description above; obviously specific implementation of the present invention is not subjected to the restriction of aforesaid way; as long as adopted the improvement of the various unsubstantialities that method of the present invention design and technical scheme carry out; or design of the present invention and technical scheme are directly applied to other occasion without improving, all within protection scope of the present invention.
Claims (9)
1. set-top box, input signal passes through Network Interface Module (1), demultiplexing module (2), the Conditional Access Module (3) of set-top box successively and looks audio decoder module (5) output video/audio signal, it is characterized in that: described Conditional Access Module (3) output also is connected outputting data signals with processing data information module (4), and described Network Interface Module (1) is provided with wired copper cable HFC interface, ethernet ip interface and optical fiber OLT interface.
2. set-top box according to claim 1, it is characterized in that: this set-top box also is provided with embedded type CPU (7), described embedded type CPU (7) is provided with hard disk (6), internal memory (8) and set top box interface (9), and embedded type CPU (7) is monitored with bus mode and all module communications of set-top box and to it.
3. set-top box according to claim 2 is characterized in that: described embedded type CPU (7) also is connected with other ancillary equipment, comprises return path and graph image encoding compression module.
4. set-top box according to claim 1, it is characterized in that: the information of described processing data information module (4) condition of acceptance receiver module (3) input is imported embedded type CPU (7), exports the relevant device interface of set top box interface (9) after being handled by embedded type CPU (7) to.
5. set-top box according to claim 1 is characterized in that: this set-top box is provided with the demodulation of two-way transport stream, and one the tunnel is used for program watches, another road is used for performance recording or outputs to another television set watching program.
6. set-top box according to claim 1 is characterized in that: CA and set-top box in the described Conditional Access Module (3) are separable, and adapt to multiple CA card.
7. set-top box control method, this control method is provided with a plurality of modules that work alone at set top box embedded CPU (7), comprising: hardware abstraction layer, hardware driving, speech interface, graph image interface, video decode driving, audio decoder driving, demultiplexing and data extract, condition receive adaptation layer, middleware, application program, application programming interfaces, value-added service, value-added service interface;
Wherein:
Described hardware abstraction layer is the subclass of hardware driving, with all registers and interface unified addressing, is responsible for directly editor's hardware;
Described hardware abstraction layer is managed various peripheral hardwares and internal subsystems module by calling hardware abstraction layer, and function abstract and shieldingization with these modules provide the application layer routine interface to last layer;
Described condition receives adaptation layer, according to the function distinguishing and the call relation of CA system it is divided into business, general driving, descrambling three class adapter assemblies, simultaneously with the call flow standardization, and the difference of shielding relevant interface and driving.
Described demultiplexing and tables of data extraction module extract the control of operation to TS code stream demultiplexing and tables of data;
Described graph image interface module produces set-top box menu, the required graphical interfaces of EPG service routine, and the 2D in the application such as video-game, 3D figure are quickened to show;
Described middleware is the software platform of digital TV receiving system, for digital television application provides running environment and software interface;
Described application program and value-added service interface module are the business interface of the value-added service of implant, play by standard interface form realization user management, log management and audience investigation, advertisement public testing, on-line payment.
8. set-top box according to claim 7, it is characterized in that: described application program and value-added service interface module have comprised the software interface and the middleware of application layer and have carried out platform, described software interface is divided into and calls local resource and two interfaces of Internet resources, and described middleware is carried out platform to the software interface program compilation.
9. set-top box according to claim 6 is characterized in that: described embedded type CPU (7) adopts the VxWorks real time operating system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 201010609023 CN102026031B (en) | 2010-12-28 | 2010-12-28 | Set top box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010609023 CN102026031B (en) | 2010-12-28 | 2010-12-28 | Set top box |
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| CN102026031A true CN102026031A (en) | 2011-04-20 |
| CN102026031B CN102026031B (en) | 2013-09-04 |
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| CN 201010609023 Expired - Fee Related CN102026031B (en) | 2010-12-28 | 2010-12-28 | Set top box |
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| CN102307317A (en) * | 2011-08-10 | 2012-01-04 | 深圳国微技术有限公司 | System for implementing data value-added service (VAS) by CAM (conditional access module) card |
| CN102355603A (en) * | 2011-09-20 | 2012-02-15 | 福建新大陆通信科技股份有限公司 | Middleware system based on wired digital television set top box<0} |
| CN102495890A (en) * | 2011-12-09 | 2012-06-13 | 上海全景数字技术有限公司 | Embedded browser application extension system and method |
| WO2012163175A1 (en) * | 2011-08-05 | 2012-12-06 | 华为技术有限公司 | Network switching method and device |
| CN102883200A (en) * | 2012-10-15 | 2013-01-16 | 苏州云普通讯技术有限公司 | Digital set-top box having broadband coaxial multi-service access module |
| CN103596035A (en) * | 2013-11-04 | 2014-02-19 | 四川九州电子科技股份有限公司 | System and method for recording DVB code stream through digital set top box |
| CN103746746A (en) * | 2013-12-11 | 2014-04-23 | 上海斐讯数据通信技术有限公司 | Business system of network device |
| CN104581263A (en) * | 2014-12-23 | 2015-04-29 | 贵阳高新国广网桥文化科技有限公司 | Networking device applied to network television and provided with flip type remote controller |
| CN104735504A (en) * | 2014-12-23 | 2015-06-24 | 贵阳高新国广网桥文化科技有限公司 | Networking device for network television set with flip type remote control unit |
| CN103596035B (en) * | 2013-11-04 | 2016-11-30 | 四川九州电子科技股份有限公司 | A kind of system and method utilizing top box of digital machine to record DVB code stream |
| CN106484462A (en) * | 2016-09-14 | 2017-03-08 | 广州视睿电子科技有限公司 | A kind of Oftware updating method and device |
| CN112750296A (en) * | 2020-12-18 | 2021-05-04 | 平湖市通用电气安装有限公司 | Intelligent fusion terminal based on infrared signal transmission function |
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| CN103596035B (en) * | 2013-11-04 | 2016-11-30 | 四川九州电子科技股份有限公司 | A kind of system and method utilizing top box of digital machine to record DVB code stream |
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| CN104581263A (en) * | 2014-12-23 | 2015-04-29 | 贵阳高新国广网桥文化科技有限公司 | Networking device applied to network television and provided with flip type remote controller |
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| CN106484462A (en) * | 2016-09-14 | 2017-03-08 | 广州视睿电子科技有限公司 | A kind of Oftware updating method and device |
| CN112750296A (en) * | 2020-12-18 | 2021-05-04 | 平湖市通用电气安装有限公司 | Intelligent fusion terminal based on infrared signal transmission function |
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| CN102026031B (en) | 2013-09-04 |
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