CN101674392A - Digital TV set top box for realizing information return based on wireless module - Google Patents
Digital TV set top box for realizing information return based on wireless module Download PDFInfo
- Publication number
- CN101674392A CN101674392A CN200910095039A CN200910095039A CN101674392A CN 101674392 A CN101674392 A CN 101674392A CN 200910095039 A CN200910095039 A CN 200910095039A CN 200910095039 A CN200910095039 A CN 200910095039A CN 101674392 A CN101674392 A CN 101674392A
- Authority
- CN
- China
- Prior art keywords
- top box
- wireless module
- digital
- passback
- demodulating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000002093 peripheral effect Effects 0.000 claims abstract description 3
- 230000002452 interceptive effect Effects 0.000 claims description 14
- 230000001413 cellular effect Effects 0.000 claims description 2
- 238000011835 investigation Methods 0.000 claims description 2
- 238000004891 communication Methods 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 238000011161 development Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- GUGNSJAORJLKGP-UHFFFAOYSA-K sodium 8-methoxypyrene-1,3,6-trisulfonate Chemical compound [Na+].[Na+].[Na+].C1=C2C(OC)=CC(S([O-])(=O)=O)=C(C=C3)C2=C2C3=C(S([O-])(=O)=O)C=C(S([O-])(=O)=O)C2=C1 GUGNSJAORJLKGP-UHFFFAOYSA-K 0.000 description 3
- 230000006837 decompression Effects 0.000 description 2
- 238000002386 leaching Methods 0.000 description 2
- KFZUDNZQQCWGKF-UHFFFAOYSA-M sodium;4-methylbenzenesulfinate Chemical compound [Na+].CC1=CC=C(S([O-])=O)C=C1 KFZUDNZQQCWGKF-UHFFFAOYSA-M 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 101150058440 Asc-1 gene Proteins 0.000 description 1
- 102100024630 Asc-type amino acid transporter 1 Human genes 0.000 description 1
- 101100110003 Danio rerio pycard gene Proteins 0.000 description 1
- 101100247325 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) RAS2 gene Proteins 0.000 description 1
- 101150081875 Slc7a10 gene Proteins 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Landscapes
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention relates to a digital TV set top box for realizing information return based on a wireless module and belongs to the technical field of communication devices. The digital TV set top box consists of a downlink demodulating-decoding subsystem and an uplink return sending subsystem, wherein the downlink demodulating-decoding subsystem comprises a demodulating-decoding chip as well as a peripheral circuit consisting of a tuner, an infrared remote control, a smart card, an audio/video output, an E<2>ROM, an audio/video memory, an FLASH and an SDRAM; and the uplink return sending subsystem comprises a GSM wireless module, an SIM card base and a 232 interface level conversion circuit. Compared with the existing PSTN return, the digital TV set top box does not need to occupy or changeuser lines; compared with the existing IP network return, the digital TV set top box does not need to recreate an IP network; and compared with the existing internal interacting mode, the digital TVset top box does not need to conduct two-way network reformation. The digital TV set top box can obviously lower user cost, and is beneficial to the combination of a cable TV network and wireless communication network service, the expanding of cable TV digitization, the development of value added service, as well as the expanding of a new video-on-demand datacast service.
Description
Technical field:
The present invention relates to a kind of digital TV set-top box, belong to the communicator technical field based on the passback of wireless module realization information.The method that relates more specifically to a top box of digital machine and adopt wireless module realization information to return.
Background technology:
The cable television digital business comprises basic service, activates business and value-added service.Basic service belongs to public service, is that the broadcast TV program integral body that will have analog channel now forwards digital platform to, continues to embody public welfare, popularity.The genus paid service of activating business is development and the extension to the traditional broadcast television business, and variation, personalized program and service can be provided, and mainly contains payable broadcasts channel for TV plays and movies, interactive TV channel, looks Audio on Demand program, data broadcasting etc.Value-added service provides the info class service business, mainly comprises looking audio service, ecommerce, wideband data, the Internet access etc. on the Internet.Except that the broadcast type business (for example basic service, NVOD etc.), most expansions and value-added service all need to provide interactive function, solve set-top box return path problem.
The passback technology that adopts mainly contains following dual mode at present: outer mutual mode (passback of PSTN net, IP network passback) and interior interactive mode (passback of HFC data feedback channel, Cable Modem passback).Wherein, by the easiest realization of PSTN net passback mode, and cost is minimum, and connecting time is long, poor user experience but exist, and takies problems such as subscriber's line, change subscriber's line.IP network passback speed is fast, and interactive application such as video request program and online can be provided by the Internet, but to realize this passback need be outside HFC a newly-built IP network.If interactive mode realizes passback in will selecting, except that will finishing the arduous two-way net transformation task of HFC,, also need in time to tackle the various noise jamming problems that may occur at any time in the complicated distribution network for guaranteeing the stability of system.Perfect along with public wireless networks such as GSM/GPRS/CDMA, and various wireless modules are in the extensive use in fields such as traffic, water conservancy, environmental protection, security protection, monitoring, remote data transmission enters a new developing stage, for effectively overcoming the above problems the thinking that provides new.The less demanding relatively occasion of, real-time less for volume of transmitted data, utilizing public wireless network to carry out transfer of data has become optimal selection.
Summary of the invention:
The objective of the invention is to overcome the deficiency of prior art, and a kind of digital TV set-top box based on the passback of wireless module realization information is provided.
The present invention finds in researching and analysing the cable television digital interactive service, do not need very fast passback speed as the business of interactive television one class, and the service request information of passback is very simple, and up-downgoing is asymmetric quite obvious.Equally, for data broadcast service, owing to adopted DVB data carousel and set-top box caching technology, make a large amount of information interactions can adopt the virtual mode of similar catalogue browsing to carry out, have only when the user submits service request to, just really to start the passback task.Digital TV set-top box based on the passback of wireless module realization information of the present invention, the service request by the passback of the gsm wireless module in set-top box user provides convenient interactive operation to the user on unidirectional network.
Digital TV set-top box based on the passback of wireless module realization information of the present invention sends two big subsystems by descending demodulating and decoding and up passback and forms; Wherein: descending demodulating and decoding subsystem is by the demodulating and decoding chip, and comprises that the peripheral circuit of tuner, infrared remote control, smart card, audio frequency and video output, E2ROM, audio frequency and video storage, FLASH and SDRAM constitutes; Uplink return sending subsystem is made of gsm wireless module, SIM card seat and 232 interface level change-over circuits.
The present invention is by the redesign to digital TV set-top box, the gsm wireless module is integrated in the digital TV set-top box, by RS232 interface and 232 interface level change-over circuits the gsm wireless module is connected on the demodulating and decoding chip that has MCU in the set-top box, and controls the startup and the initialization of gsm wireless module by MCU.In addition, the user interface in the set box browser is redesigned, in event processing module, increase the leaching function and the note sending function of service request.In the set top box interactive process, when confirming to need passback user's service request, send the passback note that comprises user's service request by the MCU of set-top box control gsm wireless module to the passback receiving system of system front end (adopt note cluster receiving platform or with the Short Message Service Gateway of cellular carrier short message service center private line access), after the passback receiving system receives the note that set-top box sends, through handling, the user ID and the service request that extract are transmitted to the broadcast control system that is positioned at system front end, through behind the authentification of user, the information that system front end sends the service of conclusion of the business to this set-top box (for example, send television short message), distribute transmission channel subsequently, scheduling relevant resource issues the service of reservation at last.
The present invention need not newly-built, take or change under the situation of Any user circuit, provide a kind of towards the unidirectional network environment, have outside the digital TV set-top box of mutual passback ability, TVOD, NVOD, reservation program, web page browsing, file download, audience investigation, viewer polls can be provided, and all kinds of interactive application of ordering based on the commodity of TV based on browser.Because design of the present invention does not relate to the descending demodulating and decoding part of system, so the present invention can be used for cable digital TV set-top box and cable TV HFC environment, also can be used for terrestrial DTV set-top box and terrestrial DTV net environment.
This invention is compared with the passback of existing P STN net, need not to take and change subscriber's line; Compare with existing IP network passback, need not newly-built IP network, reduce user cost; Compare with existing interior interactive mode, need not to carry out two-way net transformation, reduce user cost.This invention helps the blending of cable television network and radio communication network service, helps cable television digital expansion, value-added service development, helps to expand new vod data broadcasting service.
Description of drawings:
Fig. 1 is the entire system structure chart.
Fig. 2 is the optimum system choosing instance graph, shows that the system under the optimal way constitutes and connection each other.
Fig. 3 forms structure chart for browser.
Fig. 4 is browser and the main procedure chart of event processing module.
Identical reference symbol is represented same or analogous part in the accompanying drawing.
Embodiment:
The present invention is described in further detail below in conjunction with accompanying drawing:
As shown in Figure 1, whole system is made up of descending demodulating and decoding and up passback transmission two big subsystems.Wherein, the core of descending demodulating and decoding subsystem is a single module demodulating and decoding chip 106, and the core periphery is mainly by high-frequency tuner 103, infrared remote control transmitting-receiving 104, SmartCard smart card 105, video output 107, audio frequency output 108, and I
2The E that C connects
2 FLASH memory 101 that ROM memory 110, audio frequency and video SDRAM private memory 111, EMI connect and SDRAM memory 102 are formed.High-frequency tuner 103 receives the radiofrequency signal of cable television network, the intermediate-freuqncy signal of output directly enters 106, finish channel-decoding by the qam demodulator in 106, from carrier wave, demodulate the MPEG2 MPTS (MPTS) that comprises audio frequency and video and other data message.Through the TS demultiplexing, isolate SPTS (SPTS) by the MPTS of qam demodulator output, extract corresponding audio/video flow and data flow, it is output as the MPEG2 audio frequency and video and flows (ES) substantially.Descrambler in 106, MPEG2 decoder are finished the descrambling of audio/video flow and decompression, and the audio/video flow after the decompression is after video PAL/NTSC encoder and the limit conversion of audio frequency PCM encoder restore the analog audio-video signal.Uplink return sending subsystem mainly is made up of 232 interface level change-over circuits 109, gsm wireless module and SIM card seat, is connected with 106 by 109, and is controlled the startup of gsm wireless module by 106 PIO interface.
As shown in Figure 2, preferred implementation of the present invention is to adopt QAMi5516 single module demodulating and decoding chip 201 and TC35GSM wireless module 204.204 have 40 pins, by a zif connector output.Wherein, 204 RS232 is operating as cmos voltage (2.65V), for this reason need 201 with carry out level conversion between 204 serial ports is connected, preferred implementation is to adopt MAX3232 interface level change-over circuit 202.201 provide four ASC asynchronous serial ports, and wherein two are used for smart card, two free time.Therefore can select for use any one (for example, ASC1) link to each other with 204: T1IN, the T1OUT of 201 ASC1_TXD (PIO1[0]) through 202, with 204 /TXDO links to each other; 204 /RXDO is through 202 R1IN, R1OUT, links to each other with 204 ASC1_RXD (PIO1[1]).After the system power-up (maintenance is not less than 3.3V), enter operating state, can add the low pulse of a delay to IGT by an idle PIO mouth of 201 (for example, PIO1[2]) greater than 100ms for making 204.204 traffic rate can be set at 9600bps, adopts 8 asynchronous communication meanses, 1 start bit, 8 data bit, 1 position of rest.After whole system powers on, start 204 by 201 control IGT, inquire about 205 states with AT then, if SIM card is normal, finish the initialization of module again by 201 controls 204, short message centre number AT+CSCA for example is set, messaging format AT+CMGF is set, note deposit position AT+CPMS is set, note arrival notice AT+CNMI is set.When the 201 service request passbacks that set-top box users need be selected sent to system front end, (for example, AT+CMGF AT+CMGS) sent to pass through corresponding instruction.
As shown in Figure 3, set box browser is made up of protocol stack 301, network interface 302, resolver 303, layout device 304, user interface 305.Wherein, only relate to the modification of the event processing module 306 in 305 based on the browser interactive application of short message returning.As shown in Figure 4, the process of network interface 302 is 401～408, can connect long-range Web server, open the local page file, obtains data by three kinds of modes of data broadcasting mode (for example OC) intercepting page by the local file agreement by http protocol.The process of resolver 303, layout device 304, user interface 305 is 409～415, finishes parsing, layout, the demonstration of a webpage.The process of event processing module 306 is 416～421, selects if button is a page or leaf, then changes leaching new url point data over to; If button is user's a service request, for example VOD program request then changes note over to and sends, and with way of short messages service request is sent to system front end, waits for the service that receiving system issues then.
Claims (6)
1, a kind of digital TV set-top box based on the passback of wireless module realization information is characterized in that this digital TV set-top box sends two big subsystems by descending demodulating and decoding and up passback and forms; Wherein: descending demodulating and decoding subsystem is by the demodulating and decoding chip, and comprises tuner, infrared remote control, smart card, audio frequency and video output, E2ROM, audio frequency and video storage, and the peripheral circuit of FLASH and SDRAM constitutes; Uplink return sending subsystem is made of gsm wireless module, SIM card seat and 232 interface level change-over circuits.
2, the described digital TV set-top box of claim 1 based on the passback of wireless module realization information, it is characterized in that the gsm wireless module being connected on the demodulating and decoding chip that has MCU in the set-top box, and control the startup and the initialization of gsm wireless module by MCU by RS232 interface and 232 interface level change-over circuits.
3, the described digital TV set-top box of claim 1 based on the passback of wireless module realization information, it is characterized in that by in the user interface of set box browser, increasing the note sending function, when confirm needing passback, send the passback note to the passback receiving system of system front end by the MCU control gsm wireless module of set-top box.
4, the described digital TV set-top box of claim 1 based on the passback of wireless module realization information, it is characterized in that the gsm wireless module is TVOD, NVOD, reservation program, web page browsing, file download, audience investigation, viewer polls based on browser, and provide outer mutual return path based on the interactive application that the commodity of TV is ordered.
5, the described digital TV set-top box based on the passback of wireless module realization information of claim 1 is characterized in that the gsm wireless module provides outer mutual return path for the interactive application of the terrestrial DTV set-top box in the cable digital TV set-top box in the cable TV HFC, the terrestrial DTV net.
6, the described digital TV set-top box of claim 1 based on the passback of wireless module realization information, the application need that it is characterized in that this digital TV set-top box is built a passback receiving system that links to each other with broadcast control system at system front end, this system be a note cluster receiving platform or with the Short Message Service Gateway of cellular carrier short message service center private line access.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910095039A CN101674392A (en) | 2009-10-09 | 2009-10-09 | Digital TV set top box for realizing information return based on wireless module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910095039A CN101674392A (en) | 2009-10-09 | 2009-10-09 | Digital TV set top box for realizing information return based on wireless module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101674392A true CN101674392A (en) | 2010-03-17 |
Family
ID=42021366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910095039A Pending CN101674392A (en) | 2009-10-09 | 2009-10-09 | Digital TV set top box for realizing information return based on wireless module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101674392A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012068803A1 (en) * | 2010-11-26 | 2012-05-31 | 深圳市同洲软件有限公司 | Wired digital television system and method for interacting data by wireless terminal |
| CN102523362A (en) * | 2011-12-29 | 2012-06-27 | 上海泓安信息科技有限公司 | Mobile fixed-line device supporting set-top box service |
| CN102843585A (en) * | 2012-08-30 | 2012-12-26 | 北京清大嘉华投资有限公司 | Method and system for information interaction based on wireless digital network |
| CN108521596A (en) * | 2018-04-18 | 2018-09-11 | 深圳佳力拓科技有限公司 | A kind of system and method that two-way DTMB is supported based on set-top box |
-
2009
- 2009-10-09 CN CN200910095039A patent/CN101674392A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012068803A1 (en) * | 2010-11-26 | 2012-05-31 | 深圳市同洲软件有限公司 | Wired digital television system and method for interacting data by wireless terminal |
| CN102523362A (en) * | 2011-12-29 | 2012-06-27 | 上海泓安信息科技有限公司 | Mobile fixed-line device supporting set-top box service |
| CN102843585A (en) * | 2012-08-30 | 2012-12-26 | 北京清大嘉华投资有限公司 | Method and system for information interaction based on wireless digital network |
| CN108521596A (en) * | 2018-04-18 | 2018-09-11 | 深圳佳力拓科技有限公司 | A kind of system and method that two-way DTMB is supported based on set-top box |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101272325B (en) | Family wireless interconnected broadcast base station | |
| CN102802063B (en) | A kind of TV-set top box with WIFI hot spot | |
| CN202009471U (en) | Streaming media edge adapter device based on DVB transmission | |
| CN201813496U (en) | Digital video broadcasting (DVB) video gateway system | |
| CN201312356Y (en) | Digital television network media phone set terminal | |
| CN202617295U (en) | Digital television set-top box mate device | |
| CN104270679A (en) | DVB live broadcasting and network video-on-demand combination method and device | |
| CN104038777A (en) | Access of IP (Internet Protocol) terminal to DVB (Digital Video Broadcasting) video network system and implementation method thereof | |
| JP2006135987A (en) | Digital broadcast data providing apparatus and method using wireless LAN, and wireless terminal apparatus | |
| CN100493157C (en) | Digital TV mobile receiving method and multifunctional PCMCIA card based on metropolitan area network | |
| CN101674392A (en) | Digital TV set top box for realizing information return based on wireless module | |
| CN102404613A (en) | System and method for realizing one-way set top box program on demand | |
| CN101175095A (en) | Family network multimedia access apparatus and method | |
| CN101867778A (en) | A live broadcast method of digital interactive TV | |
| CN106791896A (en) | High definition/super clear program satellite internet transmission platform | |
| CN102685586A (en) | Integrated digital high-definition television application platform adopting IP (Internet Protocol) technology | |
| CN107666617A (en) | Method and set-top box for providing IPTV service to multiple terminals | |
| CN205356614U (en) | Multimedia terminal with 4G focus and live TV program propelling movement function | |
| KR100888111B1 (en) | ITP service system that provides weather content and method | |
| CN205179273U (en) | Two -way order system based on one -way STB is realized | |
| CN102710967A (en) | Cloud television system and method | |
| CN103945248A (en) | Unified access method for broadcast television and mobile communication and device thereof | |
| CN105792019A (en) | An Intelligent Wireless Broadband Network Terminal Applied to Cable Digital TV Network | |
| CN103024448A (en) | IPQAM (internet protocol quadrature amplitude modulation)-based multi-screen interacting method and IPQAM-based video terminal equipment | |
| KR101029651B1 (en) | System and method for providing interactive content service in cable broadcasting environment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100317 |