CN203120074U - Digital television system and digital television receiving terminal - Google Patents
Digital television system and digital television receiving terminal Download PDFInfo
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- CN203120074U CN203120074U CN 201220565753 CN201220565753U CN203120074U CN 203120074 U CN203120074 U CN 203120074U CN 201220565753 CN201220565753 CN 201220565753 CN 201220565753 U CN201220565753 U CN 201220565753U CN 203120074 U CN203120074 U CN 203120074U
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Abstract
The utility model discloses a digital television system and a digital television receiving terminal. The digital television receiving terminal comprises the following components: a WiFi Direct module, a CM/EoC module and a set top box module; wherein the CM/EoC module is connected with the WiFi Direct module. The set top box module is connected with the CM/EoC module and the WiFi Direct module. The digital television receiving terminal provided by one embodiment of the utility module comprises the digital television receiving terminal, a plurality of wireless terminals and a video server. The plurality of wireless terminals interact with the video server through the digital television receiving terminal on a digital television network. The digital television receiving terminal provided by the utility model utilizes WiFi Direct technology for obtaining peer-to-peer connection with wireless terminal equipment in home local area network, thereby establishing an IBSS network and realizing interconnection. Furthermore the equipment in the home network can be managed and controlled through upper application in the digital television receiving terminal.
Description
Technical field
The utility model relates to a kind of digital television system and receiving terminal for digital television, especially, relates to digital television system and receiving terminal for digital television that a kind of WiFi of employing Direct technology realizes digital home's function.
Background technology
The development of development of internet technology, particularly radio network technique has been one of cutting edge technology of current era development.In the wireless communication technology, be that the wireless local area network technology of representative is in the most important thing with IEEE 802.11, under the promotion of wireless local area network technology, the application that digital home, Smart Home etc. are new and pattern are enriched greatly and have been changed human life, have promoted social development.And along with the promotion of Chinese Government for the integration of three networks, wireless local area network technology particularly IEEE 802.11 will obtain development at full speed and application, also will be popularized in television network broadcast.
In television network broadcast, receiving terminal for digital television is as the terminal equipment of Digital Television, for the radio and TV operator, not only be confined to the video program play of receiving terminal for digital television and the advantage of two-way program request, the propelling of the integration of three networks makes operator and consumer wish that all receiving terminal for digital television can have wireless coverage, the value-added service function such as interconnect.Simultaneously, the competition between each big operator and the propelling of cooperation trend, the fixed network advantage of CHINA RFTCOM Co Ltd also will obtain the favor of mobile operator such as movement, UNICOM.In the existing wireless coverage scheme of receiving terminal for digital television, the overwhelming majority have the receiving terminal for digital television product of radio function all built-in the function of wireless access point AP.Realize the function of home gateway and wireless coverage by WAP (wireless access point).
Realize the function of wireless access point AP in the terminal receiving terminal for digital television, no matter be by built-in independent WiFi module or adopt the scheme of soft AP, all set up a WLAN (wireless local area network), user's wireless terminal such as PAD, printer, PC, mobile phone, intelligent television etc. can be realized behind the receiving terminal for digital television surfing the web by being connected to, video request program, three screens are interactive, get rid of a series of application and services such as letter and file-sharing.In 802.11 agreements, wireless access point AP has realized basis instrument network B SS(Basic Service-set), set up a local area network (LAN).In this local area network (LAN), wireless aps is in the Centroid position in the network, is the core of wireless network, the resource coordination of realization network, terminal management, wireless signal covering etc.In WLAN (wireless local area network), corresponding to must just carrying out the communication of data by the forwarding of WAP (wireless access point) between each wireless terminal of WAP (wireless access point).Do not allow among the BSS to cross AP between the wireless terminal and carry out the communication of data.
One of prior art has adopted the principle of IEEE 802.11BSS network configuration, belongs to a typical centralized network.For this network configuration, shortcoming also is that significantly the communication between each wireless terminal must realize by AP, in case the AP cisco unity malfunction.To cause the communication between the wireless terminal normally not carry out.With receiving terminal for digital television, the wireless digital TV-set receiving terminal can be used as the nucleus equipment of data family as the WAP (wireless access point) in the home network.The user by the wireless digital TV-set receiving terminal reach interconnecting of wireless terminal such as PC, PAD, household electrical appliances etc. and by Broadcasting Cable Network obtain Internet visit, get rid of interactive etc. the business function of letter, bluetooth, three screens.In case the receiving terminal for digital television cisco unity malfunction will cause the communication disruption between the wireless terminal, simultaneously, with regard to Financial cost, the technical scheme cost height that this scheme also compares and mentions in this patent.
The utility model content
The purpose of this utility model is to provide a kind of digital television system and receiving terminal for digital television, is intended to solve the above-mentioned defective of prior art.
In order to realize the purpose of this utility model, described receiving terminal for digital television comprises WiFi Direct module, CM/EoC module and set-top box module; Wherein
Described CM/EoC module connects described WiFi Direct module, and described set-top box module connects described CM/EoC module and described WiFi Direct module.
In above-mentioned receiving terminal for digital television, described set-top box module comprises master chip, and the internal memory, return path module, conditional access interface, the external storage controller that are connected respectively with described master chip and look the audio frequency output module.
Further, described receiving terminal for digital television is used at the server of operator rear end by described CM/EoC module and is downloaded and resolve the back described WiFi Direct module is configured or the control of upgrading, with by the described WiFi Direct of described set-top box module indirect control module; Described WiFi Direct module realizes NMP commonly used, and the server of operator's front end directly manages described WiFi Direct module by NMP commonly used.
In above-mentioned receiving terminal for digital television, described WiFi Direct module adopts WPA, WPA2 encryption mechanism.
In above-mentioned receiving terminal for digital television, described set-top box module has idle function; Described WiFi Direct mould has timing wake-up and transmitting power control function.
In above-mentioned receiving terminal for digital television, described CM/EoC module has the QoS security mechanism that different business stream is distinguished; Described WiFi Direct module is supported the QoS security mechanism, ensures the priority of voice, video, data service at the MAC layer.
Further, can carry out one to one between the main and auxiliaries of described receiving terminal for digital television or wireless connections and the file-sharing of one-to-many.
Further, described receiving terminal for digital television also comprises all-in-one.
The utility model also provides a kind of digital television system, and described system comprises described receiving terminal for digital television; Described system also comprises a plurality of wireless terminals with described receiving terminal for digital television wireless connections; Described wireless terminal comprises WiFi Direct module; Described wireless terminal is undertaken by WiFi Direct module and described receiving terminal for digital television alternately.
Further, described system also comprises video server, and described wireless terminal carries out with described video server on digital TV network by described receiving terminal for digital television alternately.
The utility model and the contrast of prior art platform have following advantage and positive effect: at first, need not to realize the function of wireless aps in the receiving terminal for digital television of the present utility model, only need to realize wireless terminal with WiFi Direct function, the wireless coverage that also can accomplish home network; Secondly, with respect to traditional IBSS network, the fail safe of WiFi Direct is higher, and the encryption mode of WPA, WPA2 is well positioned to meet user's demand for security; Moreover, receiving terminal for digital television of the present utility model can be realized one to one or wireless connections and the file-sharing of one-to-many, can connect by this pattern between the receiving terminal for digital television main and auxiliaries that exists in the family, realize resource-sharing and the network interconnection; In addition, the radio and TV operator can manage the wireless terminal device in WiFi Direct function and the home network by receiving terminal for digital television, reaches controlled purpose.
Description of drawings
Fig. 1 is the system block diagram of the receiving terminal for digital television that provides of the utility model embodiment;
Fig. 2 is the flow chart that receiving terminal for digital television and other terminal equipment with WiFi Direct module connect in the digital television system that provides of the utility model embodiment;
Fig. 3 is the basic flow sheet that digital television system that the utility model embodiment provides is carried out three screen interactive services.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further described in detail.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
The utility model is to be based upon on the WiFi Direct technical foundation of WiFi alliance, by adopting this technology at the wireless digital TV-set receiving terminal, a series of business of carrying out at receiving terminal for digital television can be satisfied, the interconnection and interflow between wireless digital TV-set receiving terminal and the wireless terminal can be conveniently realized simultaneously.WiFi Direct technology is a kind of new independent infrastructure network (IBSS:Independent Basic Service Set) network technology, this technology is based on the Ad Hoc network technology in 802.11, its basic principle is consistent with Ad Hoc, the exemplary shortcomings of Ad Hoc technology is not support cipher modes such as WPA, WPA2, thereby directly causes the fail safe of IBSS network not high.And the complicated operation of this technology, network rate is low, does not support QoS etc., is unfavorable for the popularization of technology and consumer's actual use.
After must connecting with other WiFi Direct equipment, receiving terminal for digital television just can carry out the forwarding of data, because the ether data that the CHINA RFTCOM Co Ltd Access Network adopts usually are by coaxial cable transmission (EoC) or cable modem (Cable Modem, CM) insert CM module that present most of receiving terminal for digital television inside is all built-in or EoC module (CM/EoC module).
Fig. 1 shows the system block diagram of the utility model receiving terminal for digital television.Receiving terminal for digital television 1 comprises WiFi Direct module 11, CM/EoC module 12 and set-top box (STB) module 13.CM/EoC module 12 connects WiFi Direct module 11, and STB module 13 connects CM/EoC module 12 and WiFi Direct module 11.
Set-top box module 13 can change into television content with compressed digital signal, and shows by WiFi Direct module 11 and being wirelessly connected on the television set of television set foundation.Signal can be from wire cable, satellite antenna, broadband network and terrestrial broadcasting.The image that the content that STB module 1 receives can provide except simulated television, the sound, more be to receive data content, comprise electronic program guides, internet webpage, captions etc., thereby can make the user watch digital television program at existing television set, and can carry out interactive digital amusement, education and commercialization activity by network.STB module 13 is by master chip, internal memory, return path, conditional access (Conditional Access, CA) interface, external storage controller and look audio frequency output etc. is several most ofly to be constituted.CPU, decoder, demodulation multiplexer, graphic process unit and video-audio processor are integrated in the master chip.In master chip, at first the flag information that transmits according to transport stream carries out demultiplexing to the transport stream that receives, the descrambling information that transmits according to the CA smart card carries out descrambling to program stream then, TS stream behind the descrambling is delivered in the video-audio decoder and respectively it is decoded, being reduced into the AV signal exports, simultaneously, also isolate multiplexing sorts of systems tables of data in TS stream, give the receiving terminal for digital television processor and export respectively.In addition, because integrated CPU and graphics management device in master chip, make receiving terminal for digital television can finish more function, it can move various softwares and finish all multitasks, for example stock reception, web page browsing etc., also can realize the graphics process of 2D even 3D by the graphics management device, for the user provides interface more attractive in appearance, realize various high image quality application such as interactive entertainment.
The conversion that CM/EoC module 12 is used between realization Cable signal and the ethernet signal.Up and the downstream frequency of CM/EoC module 12 is what to separate, after converting descending Cable signal to ethernet signal, can be forwarded to WiFi Direct module 11, be forwarded to wireless terminal after the conversion of WiFi Direct module 11 realization ethernet signals and wireless signal.In like manner, for upward signal, CM/EoC module 12 is transmitted WiFi Direct module 11 or STB module 13 and the ethernet signal that comes transfers to front end after converting the Cable signal to.
The flow chart that receiving terminal for digital television and other terminal equipment with WiFi Direct module connect in the utility model digital television system as shown in Figure 2.
In step S201, the receiving terminal for digital television electrifying startup, initialization also loads WiFi Direct driver;
In step S202, judge whether receiving terminal for digital television WiFi Direct driver loads successful.If unsuccessful, then WiFi Direct can't operate as normal; If success, then flow process enters step S203;
In step S203, the WiFi Direct equipment that exists in the receiving terminal for digital television scan for networks.Have only and just can scan between the WiFi Direct equipment and be connected;
In step S204, determine whether to exist WiFi Direct equipment.If do not exist, then this flow process finishes; If exist, then flow process enters step S205;
In step S205, set up the tabulation of found WiFi Direct equipment, receive the user equipment to be connected is carried out the order of appointment, and whether the equipment to be connected of definite user's appointment is present in the tabulation.If do not exist, then this flow process finishes; Flow process enters step S206 if exist then;
In step S206, the WiFi Direct equipment to be connected of match user appointment;
In step S207, carry out fail safe between receiving terminal for digital television and the found equipment to be connected and detect, authorize and authentication;
In step S208, determine whether authorization key is correct.If incorrect then this flow process finishes; If correct, then flow process enters step S209;
In step S209, connect to set up receiving terminal for digital television and be found to carry out the forwarding of packet between the equipment for two layers.
Digital television system of the present utility model comprise video server, receiving terminal for digital television and with a plurality of wireless terminals of receiving terminal for digital television wireless connections; With video server carry out alternately on digital TV network by receiving terminal for digital television wireless end; Wireless terminal comprises television set and/or computer.It is pointed out that receiving terminal for digital television also can be built in the terminal equipments such as television set, computer forms all-in-one.Because WiFi Direct can realize direct communication between a plurality of wireless terminals, therefore three shield interaction, get rid of business such as letter for what broadcasting and TV were carried out, need formulate the data interaction between receiving terminal for digital television and the wireless terminal.Three screen interactive services as broadcasting and TV are carried out just need each operator to formulate the interaction flow of wireless terminal and receiving terminal for digital television (comprising middleware, upper layer application etc.).Instruction request, receiving terminal for digital television that this interaction flow roughly is divided into device discovery, wireless terminal respond instruction etc.The utility model digital television system carry out three the screen interactive services basic flow sheet as shown in Figure 3.
In step S301, wireless terminal sends and connects the video server request to WiFi Direct module; In step S302, WiFi Direct module sends it to the CM/EoC module after receiving this request; In step S303, the CM/EoC module sends this request to video server again; In step S304, video server authenticates the wireless terminal of initiating this connection request; In step S305, video server response connection request is sent to the CM/EOC module with response; In step S306, the CM/EoC module sends this response to WiFi Direct module; In step S307, WiFi Direct module is forwarded to wireless terminal again.
In step S308, wireless terminal sends receiving terminal for digital television and finds to ask the module to WiFi Direct; In step S309, WiFi Direct module should find that request sent the STB module to; In step S310, STB module verification message legitimacy; In step S311, the STB module responds should be found request, and response is sent to WiFi Direct module; WiFi Direct module forwards it to wireless terminal again in step S312.
In step S313, the wireless terminal transmission is cut platform and is instructed to WiFi Direct module; In step S314, WiFi Direct module sends instruction to the STB module; In step S315, STB module verification message is also cut platform; In step S316, the STB module responds to cutting the platform instruction, and response is sent to WiFi Direct module; WiFi Direct module forwards it to wireless terminal again in step S317.
The management function of WiFi Direct equipment.For CHINA RFTCOM Co Ltd, the management of carrying out for WiFi Direct equipment has dual mode, the one, receiving terminal for digital television can lead to the CM/EoC module or the EoC network is configured or the control of upgrading WiFi Direct module after the server end of operator rear end is used download and resolved, operator does not directly manage WiFi Direct module, but reaches the purpose of indirect control WiFi Direct module by the STB module; The 2nd, WiFi Direct module can realize the NMP (as SNMP, TR069) used always, the server of operator's front end can directly manage WiFi Direct module by NMP commonly used, does not need the participation of STB module or wireless terminal.
WiFi Direct supports the safety encipher mechanism of WPA2.Compared to traditional Ad hoc pattern, WiFi Direct can provide better fail safe.At first can resist outside unauthorized access to local network.Secondly, because in the CHINA RFTCOM Co Ltd of reality, operator has generally made restriction to the CPE number that the CM/EoC module connects, in case and WiFi Direct module is not encrypted setting, in a single day external user can take the CPE number of CM/EoC module after in the wireless connections, thereby has influence on the local user for the use of network or carrying out of receiving terminal for digital television demand (telecommunication) service.
For the wireless digital TV-set receiving terminal, owing to had the WiFi function, with respect to the STB module that video and VOD point multicast function is provided, the CM/EoC module is relative longer running time with the WiFi module, the operation of may starting shooting for a long time, therefore, the electricity-saving function of equipment is important.For the STB module, can stop its operation by standby.For the WiFi module.WiFi Direct equipment itself is supported WMM-PS(WiFi Mutimedia-Power Save) mechanism, can realize battery saving mode by timing wake-up and transmitting power control, reduce the electric energy expense when the small data quantity communication.
In the wireless digital TV-set receiving terminal, need to realize that QOS mechanism ensures the priority that user's data, video, voice etc. are professional.The CM/EoC module has the QoS security mechanism, can distinguish different business stream.WiFi Direct itself also supports 802.11 QoS mechanism, ensures the priority of voice, video, data service at the MAC layer.Thereby guarantee the Business Stream priority of each wireless terminal.
Utilize in the receiving terminal for digital television of the present utility model WiFi Direct technology reach with family lan in wireless terminal device carry out equity and be connected, set up an IBSS network, realize interconnecting.And can come the equipment in the home network is managed and controls by the upper layer application of utilizing receiving terminal for digital television.
The above is preferred embodiment of the present utility model only, is not limited to the utility model, all any modifications of making within spirit of the present utility model and principle, is equal to and replaces and improvement etc., all should be included in the protection range of the present utility model.
Claims (6)
1. a receiving terminal for digital television is characterized in that, described receiving terminal for digital television comprises WiFi Direct module, CM/EoC module and set-top box module; Wherein
Described CM/EoC module connects described WiFi Direct module, and described set-top box module connects described CM/EoC module and described WiFi Direct module.
2. receiving terminal for digital television according to claim 1, it is characterized in that, described set-top box module comprises master chip, and the internal memory, return path module, conditional access interface, the external storage controller that are connected respectively with described master chip and look the audio frequency output module.
3. receiving terminal for digital television according to claim 1 is characterized in that, described WiFi Direct module adopts WPA, WPA2 encryption mechanism.
4. receiving terminal for digital television according to claim 1 is characterized in that, described receiving terminal for digital television also comprises all-in-one.
5. a digital television system is characterized in that, described system comprises as each described receiving terminal for digital television among the claim 1-4; Described system also comprises a plurality of wireless terminals with described receiving terminal for digital television wireless connections; Described wireless terminal comprises WiFi Direct module; Described wireless terminal is undertaken by WiFi Direct module and described receiving terminal for digital television alternately.
6. digital television system according to claim 5 is characterized in that, described system also comprises video server, and described wireless terminal carries out with described video server on digital TV network by described receiving terminal for digital television alternately.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220565753 CN203120074U (en) | 2012-10-31 | 2012-10-31 | Digital television system and digital television receiving terminal |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220565753 CN203120074U (en) | 2012-10-31 | 2012-10-31 | Digital television system and digital television receiving terminal |
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| CN 201220565753 Expired - Fee Related CN203120074U (en) | 2012-10-31 | 2012-10-31 | Digital television system and digital television receiving terminal |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103647992A (en) * | 2013-11-20 | 2014-03-19 | 乐视致新电子科技（天津）有限公司 | Ott set-top box |
| CN104363489A (en) * | 2014-12-03 | 2015-02-18 | 四川中时代科技有限公司 | EOC (Ethernet over coax) and digital television receiving wireless terminal set top box equipment |
| CN105357573A (en) * | 2015-12-21 | 2016-02-24 | 深圳Tcl数字技术有限公司 | Method and device for determining wireless slave units required to be connected during starting of television |
| CN109831692A (en) * | 2019-03-08 | 2019-05-31 | 陕西广茂电子科技有限责任公司 | A kind of data of set top box orientation method for pushing and system based on Wifi technology |
-
2012
- 2012-10-31 CN CN 201220565753 patent/CN203120074U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103647992A (en) * | 2013-11-20 | 2014-03-19 | 乐视致新电子科技（天津）有限公司 | Ott set-top box |
| CN104363489A (en) * | 2014-12-03 | 2015-02-18 | 四川中时代科技有限公司 | EOC (Ethernet over coax) and digital television receiving wireless terminal set top box equipment |
| CN105357573A (en) * | 2015-12-21 | 2016-02-24 | 深圳Tcl数字技术有限公司 | Method and device for determining wireless slave units required to be connected during starting of television |
| WO2017107382A1 (en) * | 2015-12-21 | 2017-06-29 | 深圳Tcl数字技术有限公司 | Method and device for use in determining wireless slave device to which television needs to connect on startup |
| CN105357573B (en) * | 2015-12-21 | 2018-10-02 | 深圳Tcl数字技术有限公司 | The method and device of the wireless slave unit connected is needed when for determining television startup |
| CN109831692A (en) * | 2019-03-08 | 2019-05-31 | 陕西广茂电子科技有限责任公司 | A kind of data of set top box orientation method for pushing and system based on Wifi technology |
| CN109831692B (en) * | 2019-03-08 | 2021-12-14 | 陕西广茂电子科技有限责任公司 | Set top box data directional pushing method and system based on Wifi technology |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130807 Termination date: 20151031 |
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| EXPY | Termination of patent right or utility model |