CN102821317A - Method and system for managing digital television - Google Patents
Method and system for managing digital television Download PDFInfo
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- CN102821317A CN102821317A CN2012103192790A CN201210319279A CN102821317A CN 102821317 A CN102821317 A CN 102821317A CN 2012103192790 A CN2012103192790 A CN 2012103192790A CN 201210319279 A CN201210319279 A CN 201210319279A CN 102821317 A CN102821317 A CN 102821317A
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Abstract
The invention discloses a method for managing a digital television. The method includes the following steps that a backstage server encrypts digital television programs, a television builds point-to-point communication connection with a mobile communication terminal, the mobile communication terminal transmits an authentication request to the backstage server through the network after receiving a digital television program playing request transmitted by the digital television, and the backstage server transmits decoding instructions to the mobile communication terminal which transmits the decoding instructions to the television to enable the television to decode encrypted digital television program signals. A system for managing the digital television is further provided. The method and the system reduce manufacture cost, maintenance cost and selling expense of encryption and decryption devices.
Description
Technical field
The invention belongs to the digital television techniques field, particularly a kind of method and system of managing digital television.
Background technology
Encryption system in the cable digital TV industry can be encrypted files in stream media, comes the user is managed with this, guarantees the normal earning of cable TV value-added service by this.Existing encryption system develops and is started in latter stage in last century, adopts unidirectional video transmission mode basically, for example CA (Conditional Access, condition is accepted) system.AES in the CA system is very crucial, wherein two the most key technology: the one, and transmission scrambling and descrambling (Scrambling, method Descrambling).The control of the transmitting terminal CA system that scrambling-descrambling technology is used to changes or controls some characteristic of the service (program) that is transmitted down, makes uncommitted user can't obtain the interests that this service provides; The 2nd, the control descrambling provides an enciphered message at transmitting terminal, makes authorized users end descrambler come data are deciphered with this.This information is controlled by the CA system, and is configured in the transport stream to prevent that unauthorized user from directly utilizing this information to carry out descrambling with encrypted form.
This conditional access mode must rely on outstanding algorithm and the good anti-ability of cracking.For a long time, the most top condition reception technique is external technology company always, and their cost of use is high, comprises the expense of licensing at least, detects certification fee usefulness and single machine profit-sharing expense.And collecting to several respects such as broadcasting and TV system, television receiver complete set manufacturer and chip manufacturers of expense charged.In order to guarantee that algorithm is not cracked; These CA companies require production line that special device and flow process must be arranged, and for example monitoring camera only allows factory's upgrade software; Require chip companies and complete set manufacturer to carry out in strict accordance with his requirement to PCB design and chip design; Technological development and launch are brought serious restriction, and a common advanced security property (condition to HDTV receives) authentication needed 6-9 month, to such an extent as to its corresponding chip is on other functions; Have no idea to catch up with the technical merit of global main flow, bring the backward situation of product.
Domestic for this reason broadcasting and TV market apportion becomes various systems, complete machine enterprise is carried out scale running and consumer's variation and selects, and has all caused puzzlement.According to statistics, the TV station of China various places and operator thereof have big and smallly adopted multiple CA mode, all can not be compatible between mutually, need be according to the different encryption and decryption equipment of the different CA system customizations in different regions, and manufacturing cost and maintenance cost are higher.
Summary of the invention
Main purpose of the present invention is to provide a kind of method of managing digital television, and being intended to solve in the prior art condition receiving system can not be compatible between mutually, makes and the maintenance cost technical problems of high.
In order to realize goal of the invention, the present invention provides a kind of method of managing digital television, and it may further comprise the steps:
Background server is encrypted digital television program;
Television set is set up and is connected with the point-to-point communication of mobile communication terminal,
Mobile communication terminal sends authentication request through network to background server after receiving the digital television program playing request of said television set transmission;
Background server sends decoding instruction to mobile communication terminal, and mobile communication terminal is transferred to television set with decoding instruction, for it to the encrypted digital TV program signal decoding.
Preferably, said television set foundation comprises after being connected with the point-to-point communication of mobile communication terminal:
Television set judge with mobile communication terminal between the validity that is connected of communication;
When the communication connection is invalid, seek mobile communication terminal through point-to-point communication.
Preferably, said television set judge with mobile communication terminal between the validity that is connected of communication comprise:
Be sent in the net request to mobile communication terminal,, judge that then communication link is connected to effect, otherwise be invalid if receive replying of mobile communication terminal at net.
Preferably, before carrying out said background server transmission decoding instruction to mobile communication terminal, comprise:
Background server sends the affirmation information that whether continues to use this authentification of user service to mobile communication terminal;
When receiving positive response, continue decoding process;
Receiving when negate replying that prompting account number or service are unusual and withdraw from decoding process.
Preferably, said television set is set up through WIFI, bluetooth, HiberLan, WAPI, infrared IRDA and is connected with the point-to-point communication of mobile communication terminal.
The present invention also provides a kind of system of managing digital television, comprising:
Background server is used for digital television program is encrypted;
Television set is used to set up with the point-to-point communication of mobile communication terminal and is connected,
Mobile communication terminal after being used to receive the digital television program playing request of said television set transmission, sends authentication request through network to background server;
Said background server also is used to send decoding instruction to mobile communication terminal, and said mobile communication terminal also is used for decoding instruction is transferred to television set, for it to the encrypted digital TV program signal decoding.
Preferably, said television set comprises:
Judge module, be used to judge with mobile communication terminal between the validity that is connected of communication;
Look for the net module, be used for when the communication connection is invalid, seeking mobile communication terminal through point-to-point communication.
Preferably, the said net module of looking for specifically is used for:
Be sent in the net request to mobile communication terminal,, judge that then communication link is connected to effect, otherwise be invalid if receive replying of mobile communication terminal at net.
Preferably, said background server comprises:
The confirmation sending module is used for sending the affirmation information that whether continues to use this authentification of user service to mobile communication terminal;
Reply processing module, be used for when receiving positive response, continue decoding process; Receiving when negate replying that prompting account number or service are unusual and withdraw from decoding process.
Preferably, said television set is set up through WIFI, bluetooth, HiberLan, WAPI, infrared IRDA and is connected with the point-to-point communication of mobile communication terminal.
The present invention is through two-way communications protocol between mobile communication terminal realization and television set and the background server; Can guarantee the interests of broadcasting and TV system; The unidirectional condition receiving system of comparing traditional has reduced manufacturing cost, maintenance cost and the selling charges of encryption and decryption equipment significantly.
Description of drawings
Fig. 1 is the method flow diagram of managing digital television in one embodiment of the invention;
Fig. 2 is the method flow diagram of managing digital television in another embodiment of the present invention;
Fig. 3 is the method flow diagram of managing digital television in further embodiment of this invention;
Fig. 4 is the structural representation of the system of managing digital television in one embodiment of the invention;
Fig. 5 is the structural representation of television set in one embodiment of the invention;
Fig. 6 is the structural representation of background server in one embodiment of the invention;
Fig. 7 is the applicating flow chart of the system of managing digital television in one embodiment of the invention.
The realization of the object of the invention, functional characteristics and advantage will combine embodiment, further specify with reference to accompanying drawing.
Embodiment
Should be appreciated that specific embodiment described herein only is used to explain the present invention, and be not used in qualification the present invention.
With reference to Fig. 1, be the method flow diagram of managing digital television in one embodiment of the invention.In the embodiment of the invention, the method for managing digital television may further comprise the steps:
Step S10, background server is encrypted digital television program;
Step S20, television set set up and are connected with the point-to-point communication of mobile communication terminal,
Step S30, mobile communication terminal send authentication request through network to background server after receiving the digital television program playing request of said television set transmission;
Step S40, background server send decoding instruction to mobile communication terminal;
Step S50, mobile communication terminal is transferred to television set with decoding instruction, for it to the encrypted digital TV program signal decoding.
In the embodiment of the invention; The equipment (for example mobile phone, panel computer etc.) of home control network communication protocols such as mobile communication terminal includes but not limited to have GSM, CDMA, WCDMA, CDMA2000, TDCDMA or LTE can be set up and the communicating by letter of television set through WLAN point-to-point protocol (for example comprise and be not limited only to WIFI (IEEE802.11a/b/g/n), bluetooth (IEE802.15), HiberLan, WAPI or infrared IRDA).
Above-mentioned background server is the server of service provider's end, and for example radio network background server etc. can be encrypted digital television program.The embodiment of the invention is docked with the radio network background service system by the mobile communication business system, sets up two-way authentication system, gives and authorized agreement through mobile communication terminal again, allows digital television to receive the digital television signal from radio network.
In the embodiment of the invention, TV set and mobile communication terminal form the agreement of the same race of point to point network, include but not limited to the above wireless communication protocol of listing.Communicating by letter between television set and the mobile communication terminal, mobile communication terminal and background server is through the communication after encrypting, and is safe lane.
The embodiment of the invention is held the two-way communications protocol of background server through mobile communication terminal realization and TV and service provider; Can guarantee the interests of broadcasting and TV system; The unidirectional condition receiving system of comparing traditional; The possibility that is cracked is extremely low, even also can not form scale larceny after being cracked.
With reference to shown in Figure 2, in one embodiment of the present invention, after carrying out above-mentioned steps S20, also comprise:
Step S21, television set judge with mobile communication terminal between the validity that is connected of communication;
Step S22 when the communication connection is invalid, seeks mobile communication terminal through point-to-point communication.
Be the reliability of guaranteeing authentication information and ageing.Can be connected interactive information through local wireless local area network between television set and mobile communication terminal on time.Time validity can monthly also can per diem also can be made a decision by Broadcasting Cable Network on time, writes into communication protocol.
Further, comprise among the above-mentioned steps S21: be sent in the net request to mobile communication terminal,, judge that then communication link is connected to effect, otherwise be invalid if receive replying of mobile communication terminal at net.
In the timeliness validity time, television set is deciphered and is play the digital television signal of encrypting according to obtaining decryption instructions.After exceeding time validity, television set is sought mobile communication terminal through point-to-point communication, sends affirmation " in the net request " to mobile communication terminal.Mobile communication terminal is replied " replying at net " to mobile communication terminal after receiving " in the net request ".Mobile communication terminal sends to the background server that SP (Service Provider, service provider) holds with " in the net request " through mobile communication network simultaneously, makes background server obtain the information that television set is using.After television set receives " replying at net ", continue TV signal is deciphered and play.Time validity is from new calculating.After obtaining decryption instructions through an authentication like this, only need point-to-point quick affirmation, guarantee authentication safely and effectively and management through local area network (LAN).
With reference to shown in Figure 3, in one embodiment, can comprise before the above-mentioned steps S40:
Step S41, background server send the affirmation information that whether continues to use this authentification of user service to mobile communication terminal;
Step S42 when receiving positive response, continues decoding process;
Step S43 is receiving when negate replying, and prompting account number or service are unusual and withdraw from decoding process.
When mobile communication terminal leaves local area network (LAN) and exceeds the time during validity; Mobile communication terminal obtains " in the net request " less than television set; Background server also obtains in time validity less than the information of television set in use simultaneously, will send validation of information to mobile communication terminal and whether continue to use this authentification of user service.The user communicates by letter with background server through mobile communication terminal and decides the validity of TV set terminal decryption instructions.So not only guaranteed that mobile communication terminal left local area network (LAN) and influences the influence that television set that ageing judgement brings uses but also reduced not the danger that can be usurped by other television sets because of the user.
The technical scheme of embodiment of the present invention, can realize following beneficial effect:
At first, can reduce manufacturing and maintenance cost.Existing C A Verification System, the standard disunity has more than 10 kinds of encrypted authentication systems on the market; TV and STB manufacturer are brought bigger pressure, need be unfavorable for large-scale production according to the different machine of the different CA system customizations in different regions; Produce bigger manufacturing cost; Unified adopt the present invention after, do not need again to have reduced manufacturing cost, maintenance cost and selling charges significantly according to the different regions custom machine.
Secondly, in the method for embodiment of the invention managing digital television, the backstage operation is simple and clear, and charge method is simple flexibly.Can entrust the different service link to charge; Both can collect, and also can collect, even can entrust DTV sale or manufacturing company to collect through the CHINA RFTCOM Co Ltd backstage through moving background terminal; The market operation pattern is simple, is convenient to safeguard and developing market.
Once more, because the SP business of whole telecommunication system is transparent and open, so the broadcasting and TV system sees through the SP business and realizes encryption system, broken a difficult problem that perplexs for many years about the integration of three networks.
In addition, the computations of DTV can produce through comparatively simple mode, and the transmitting apparatus of front end and the receiving equipment at terminal all become comparatively brief, provide cost savings, and have reduced failure rate, have improved reliability.
The chip that the embodiment of the invention need not customize, all have the chip of Andriod system, after increase WIFI or other local area network (LAN) point-to-point transmission functions, can realize that development rate accelerates.
The embodiment of the invention not only can be at cabled digital, also can be applied in future in satellite digital TV and the wireless open circuit digital TV encryption system, also can be compatible at present domestic much analogue signal encryption systems cheaply.
In addition, because the standardization of technology has been abandoned loaded down with trivial details condition and received the authentication link, the listing speed of product and function all strengthen greatly.
The present invention also provides a kind of system of managing digital television, is used to realize said method, and with reference to Fig. 4, in one embodiment, this system comprises:
Television set 20 is used to set up with the point-to-point communication of mobile communication terminal and is connected,
In the embodiment of the invention; The equipment (for example mobile phone, panel computer etc.) of home control network communication protocols such as mobile communication terminal includes but not limited to have GSM, CDMA, WCDMA, CDMA2000, TDCDMA or LTE can be set up and the communicating by letter of television set through WLAN point-to-point protocol (for example comprise and be not limited only to WIFI (IEEE802.11a/b/g/n), bluetooth (IEE802.15), HiberLan, WAPI or infrared IRDA).Background server 10 is the server of service provider's end, and for example radio network background server etc. can be encrypted digital television program.Dock with the radio network background service system by the mobile communication business system, set up two-way authentication system, give and authorized agreement through mobile communication terminal again, allow digital television to receive digital television signal from radio network.
In the embodiment of the invention, TV set and mobile communication terminal form the agreement of the same race of point to point network, include but not limited to the above wireless communication protocol of listing.Communicating by letter between television set and the mobile communication terminal, mobile communication terminal and background server is through the communication after encrypting, and is safe lane.
With reference to shown in Figure 5, in a preferred embodiment, television set 20 comprises:
Judge module 21, be used to judge with mobile communication terminal between the validity that is connected of communication;
Look for net module 22, be used for when the communication connection is invalid, seeking mobile communication terminal through point-to-point communication.
Be the reliability of guaranteeing authentication information and ageing.Television set 20 can be connected interactive information through local wireless local area network with 30 of mobile communication terminals on time.Time validity can monthly also can per diem also can be made a decision by Broadcasting Cable Network on time, writes into communication protocol.
Further, above-mentioned judge module 21 specifically is used for being sent in the net request to mobile communication terminal 30, if receive replying at net of mobile communication terminal 30, judges that then communication link is connected to effect, otherwise is invalid.
In the timeliness validity time, television set 20 is deciphered and is play the digital television signal of encrypting according to obtaining decryption instructions.After exceeding time validity, television set is sought mobile communication terminal through point-to-point communication, sends affirmation " in the net request " to mobile communication terminal.Mobile communication terminal is replied " replying at net " to mobile communication terminal after receiving " in the net request ".Mobile communication terminal sends to the background server that SP (Service Provider, service provider) holds with " in the net request " through mobile communication network simultaneously, makes background server obtain the information that television set is using.After television set receives " replying at net ", continue TV signal is deciphered and play.Time validity is from new calculating.After obtaining decryption instructions through an authentication like this, only need point-to-point quick affirmation, guarantee authentication safely and effectively and management through local area network (LAN).
With reference to shown in Figure 6, in one embodiment, background server 10 comprises:
Application flow among one embodiment of system of managing digital television of the present invention is please with reference to shown in Figure 7, and this flow process can may further comprise the steps:
After step 1, television set receive digital television signal, judge whether and to decipher,,, get into step 8, if cannot decipher then get into step 2 then to the TV signal descrambling if can decipher;
Step 2, if the digital television signal that television set receives can not be deciphered, seek mobile phone through WIFI local area network (LAN) television set, send playing request to mobile phone, get into step 3; If seek less than mobile phone, then get into step 7;
Step 3, mobile phone send authentication request through mobile communication network to SP after receiving the playing request of television set in the local area network (LAN), get into step 4;
Step 4, SP server receive the authentication request of mobile phone, and this user's authenticity and validity is confirmed in audit.After confirming user's validity, get into step 5;
Step 5, mobile phone obtain control command from the SP server, are transferred to television set through the WIFI local area network (LAN), and television set receives control command, to decrypted signal;
Step 6, television set get into the normal play flow process;
Step 7, prompting account number or service are unusual, log off;
Step 8, judgement time validity are as effectively then getting into step 6, like the invalid step 9 that then gets into;
Whether step 9, television set seek mobile phone at net, are sent in the net request to mobile phone, if at net, mobile phone is received after the net request, replys at net from the trend television set and replys.Mobile phone sends the information of " television set uses " to SP simultaneously.Get into step 6, otherwise get into step 10;
More than be merely the preferred embodiments of the present invention; Be not so limit claim of the present invention; Every equivalent structure or equivalent flow process conversion that utilizes specification of the present invention and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (10)
1. the method for a managing digital television is characterized in that, may further comprise the steps:
Background server is encrypted digital television program;
Television set is set up and is connected with the point-to-point communication of mobile communication terminal,
Mobile communication terminal sends authentication request through network to background server after receiving the digital television program playing request of said television set transmission;
Background server sends decoding instruction to mobile communication terminal, and mobile communication terminal is transferred to television set with decoding instruction, for it to the encrypted digital TV program signal decoding.
2. the method for managing digital television as claimed in claim 1 is characterized in that, comprises after said television set foundation is connected with the point-to-point communication of mobile communication terminal:
Television set judge with mobile communication terminal between the validity that is connected of communication;
When the communication connection is invalid, seek mobile communication terminal through point-to-point communication.
3. the method for managing digital television as claimed in claim 2 is characterized in that, said television set judge with mobile communication terminal between the validity that is connected of communication comprise:
Be sent in the net request to mobile communication terminal,, judge that then communication link is connected to effect, otherwise be invalid if receive replying of mobile communication terminal at net.
4. the method for managing digital television as claimed in claim 1 is characterized in that, before carrying out said background server transmission decoding instruction to mobile communication terminal, comprises:
Background server sends the affirmation information that whether continues to use this authentification of user service to mobile communication terminal;
When receiving positive response, continue decoding process;
Receiving when negate replying that prompting account number or service are unusual and withdraw from decoding process.
5. like the method for each described managing digital television in the claim 1 to 4, it is characterized in that said television set is set up through WIFI, bluetooth, HiberLan, WAPI, infrared IRDA and is connected with the point-to-point communication of mobile communication terminal.
6. the system of a managing digital television is characterized in that, comprising:
Background server is used for digital television program is encrypted;
Television set is used to set up with the point-to-point communication of mobile communication terminal and is connected,
Mobile communication terminal after being used to receive the digital television program playing request of said television set transmission, sends authentication request through network to background server;
Said background server also is used to send decoding instruction to mobile communication terminal, and said mobile communication terminal also is used for decoding instruction is transferred to television set, for it to the encrypted digital TV program signal decoding.
7. device as claimed in claim 6 is characterized in that, said television set comprises:
Judge module, be used to judge with mobile communication terminal between the validity that is connected of communication;
Look for the net module, be used for when the communication connection is invalid, seeking mobile communication terminal through point-to-point communication.
8. device as claimed in claim 7 is characterized in that, the said net module of looking for specifically is used for:
Be sent in the net request to mobile communication terminal,, judge that then communication link is connected to effect, otherwise be invalid if receive replying of mobile communication terminal at net.
9. like each described device in the claim 6 to 8, it is characterized in that said background server comprises:
The confirmation sending module is used for sending the affirmation information that whether continues to use this authentification of user service to mobile communication terminal;
Reply processing module, be used for when receiving positive response, continue decoding process; Receiving when negate replying that prompting account number or service are unusual and withdraw from decoding process.
10. device as claimed in claim 9 is characterized in that, said television set is set up through WIFI, bluetooth, HiberLan, WAPI, infrared IRDA and is connected with the point-to-point communication of mobile communication terminal.
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| CN201210319279.0A CN102821317B (en) | 2012-08-31 | 2012-08-31 | Method and system for managing digital television |
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| CN201210319279.0A CN102821317B (en) | 2012-08-31 | 2012-08-31 | Method and system for managing digital television |
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| CN102821317B (en) | 2015-03-11 |
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