CN101938432A - Digital home gateway and method thereof based on cable television network - Google Patents
Digital home gateway and method thereof based on cable television network Download PDFInfo
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Abstract
The invention discloses a digital home gateway and a method thereof based on a cable television network, the digital home gateway comprises a signal modulation-demodulation system, which receives a first radio-frequency signal sent by a cable television server side, demodulates the first radio-frequency signal into a first digital signal and sends the first digital signal to a digital home system, receives a second digital signal sent by the digital home system, modulates the second digital signal to the a second radio-frequency signal and sends the second radio-frequency signal to the cable television server side; and the digital home system which is connected with the signal modulation-demodulation system, comprises a plurality of digital home devices, receives the second digital signal which is sent by the plurality of digital home devices, sends the second digital signal to the signal modulation-demodulation system, receives the first digital signal which is sent by the signal modulation-demodulation system and sends the first digital signal to the corresponding digital home devices. Therefore, the digital home gateway and the method realize remote control to digital home via the cable television network.
Description
Technical field
The present invention relates to the digital home and the communications field, relate in particular to a kind of digital home gateway and method thereof based on cable TV network.
Background technology
Be accompanied by television network broadcast, telephone network, the develop rapidly of internet, the notion of the integration of three networks has caused that academia and industrial circle more and more pay close attention to, the integration of three networks has become the inexorable trend of following information network development.Should be noted that the integration of three networks is not meant the fusion of three macroreticulars in physical aspect under existing technical merit and industry situation, perhaps replace existing of other network with certain network.The present integration of three networks should be meant the fusion of service layer, promptly by the existing network technology, especially IP technology, on the application layer of a concrete network, can carry out multiple different business such as data, voice and video simultaneously, provide the omnibearing network information service to people, be the Triple Play (triple service) of common name in the world.
The nineties in 20th century,, realize that the IT industry of countries in the world has particularly been launched fierce commercial competition between some transnational information industry companies in order to grab the commanding elevation of following digitizing technique and information service for network integration technology and system.From world wide, information technology and economic development make " integration of three networks " become possibility, no matter still are on the slave unit technically, and " integration of three networks " become current in history stream and inexorable trend irresistible in the broadcasting and TV information industry development of countries in the world.
Aspect Network Transmission, because the realization that develops into the integration of three networks of digital technology, optical communication technique, software engineering and IP technology provides technical foundation.Following cable television network will become and is broadband network integrated service provider, with Digital Television HFC (Hybrid Fiber Coaxial cable, hybrid fiber coax) network or EPON (Ethernet Passive Optical Network, Ethernet passive optical network), the set advantage of IP wide-band bidirectional network, take the lead in realizing the business platform of the integration of three networks, support business such as interactive TV, broadband access network, family's commercial affairs, Smart Home, home entertaining comprehensively.
Yet, adopt original communication technology in present stage, as in a sub-district owing to the geographical position reason, all do not realize the target of broadband for many years to the family, but the network of Cable TV (cable TV) has been disposed in this sub-district, this community user remain can't be by cable TV network to the Long-distance Control of digital home.
In summary, the digital home's control technology based on cable TV network in the described prior art obviously exists inconvenience and defective on reality is used, so be necessary to be improved.
Summary of the invention
At above-mentioned defective, the object of the present invention is to provide a kind of digital home gateway and method thereof based on cable TV network, to realize Long-distance Control by cable TV network, save the development cost of the user's who only has cable TV network digital home to digital home.
In order to realize foregoing invention purpose of the present invention, the invention provides a kind of digital home gateway based on cable TV network, described digital home gateway based on cable TV network comprises:
The modulating and demodulating signal system, be connected in cable TV server end and digital family system, receive first radiofrequency signal that described cable TV server end sends, described first radiofrequency signal is demodulated to first digital signal, and described first digital signal is sent to described digital family system; And receive second digital signal that described digital family system sends, described second digital signal is modulated into second radiofrequency signal, and described second radiofrequency signal is sent to described cable TV server end;
Digital family system is connected in described modulating and demodulating signal system, comprises a plurality of digital family equipments, receives described second digital signal that described a plurality of digital family equipment sends, and described second digital signal is sent to described modulating and demodulating signal system; And receive described first digital signal that described modulating and demodulating signal system sends, and described first digital signal is sent to the digital family equipment of correspondence.
According to described digital home gateway based on cable TV network, described digital family system also comprises:
Digital home's subnet closes, and is used for described a plurality of digital family equipments are connected, and forms the man system of described numeral; And receive described second digital signal that described a plurality of digital family equipment sends, and described second digital signal is sent to described modulating and demodulating signal system; And receive described first digital signal that described modulating and demodulating signal system sends, and described first digital signal is sent to the digital family equipment of correspondence; And/or
Described a plurality of digital family equipment comprises set-top box, and described set-top box is used to receive the cable television program that described cable TV server end sends.
According to described digital home gateway based on cable TV network, described modulating and demodulating signal system comprises:
The broadcast interface module, described broadcast interface module receives described first radiofrequency signal that described cable TV server end sends, the described first radiofrequency signal demodulation is obtained described first digital signal, and described first digital signal is sent to described digital home subnet pass;
The interactive interface module, described interactive interface module receives described digital home subnet and closes described second digital signal that sends, described second digital signal modulation is obtained described second radiofrequency signal, and described second radiofrequency signal is sent to described cable TV server end.
According to described digital home gateway based on cable TV network, described broadcast interface module comprises:
Radio frequency interface is conciliate the tune module, is used to receive described first radiofrequency signal that described cable TV server end sends, and the described first radiofrequency signal demodulation is obtained described first digital signal;
The Error processing submodule is used for described first digital signal that the demodulation of described radio frequency interface reconciliation tune module obtains is carried out Error processing;
The position is used for that described first digital signal after the described Error processing submodule Error processing is carried out the position and handles to the mapping of byte to the mapping submodule of byte; And,
Described first digital signal that digital decrypted submodule, the mapping submodule that is used for that described byte is put in place carry out mapping that byte puts in place after handling is carried out digital decrypted and is handled, and described first digital signal after will decipher sends to described digital home subnet pass.
According to described digital home gateway based on cable TV network, described interactive interface module comprises:
The data encryption submodule is used for second digital signal that described a plurality of digital family equipments send is encrypted;
The mapping submodule that byte puts in place is used for described second digital signal after the described data encryption submodule encryption is carried out the mapping processing that byte puts in place; And,
Digital signal modulation and transmission submodule, described second digital signal after the mapping submodule mapping that is used for that described byte is put in place is handled is modulated, obtain described second radiofrequency signal, and described second radiofrequency signal is sent to described cable TV server end.
According to described digital home gateway based on cable TV network, described modulating and demodulating signal system also comprises:
The management interface submodule is used to connect the management equipment of described modulating and demodulating signal system;
The hardware testing interface module is used to connect and need be connected with described modulating and demodulating signal system and carries out the equipment of hardware testing;
The radio frequency interference module is used to reduce the suffered radio frequency interference of described modulating and demodulating signal system.
According to described digital home gateway based on cable TV network, described digital home subnet closes and comprises:
Insert output module, be used for described modulating and demodulating signal system is connected with a plurality of digital family equipments of described digital family system, and described first digital signal sent to the digital family equipment of correspondence; And described second digital signal that described a plurality of digital family equipments send sent to described modulating and demodulating signal system;
Networking module is used for a plurality of digital family equipments of described digital family system are connected;
Administration module is used for the management of described a plurality of digital family equipment at described digital family system;
The control service module is used to control the service that described a plurality of digital family equipment provides;
The multimedia service module, being used for described a plurality of digital family equipment provides multimedia service;
Data service module, being used for described a plurality of digital family equipment provides data, services.
According to described digital home gateway based on cable TV network, described administration module comprises:
The safety monitoring submodule is used to monitor the security of operation that described digital home subnet closes;
The quality of service submodule is used for the quality of service service that described digital home subnet closes;
The address submodule is used to distribute the address information of closing a plurality of digital family equipments that are connected with record and described digital home subnet;
Equipment state management submodule is used to manage the equipment state of closing a plurality of digital family equipments that are connected with described digital home subnet;
The editing equipment management submodule is used to control the equipment state of closing a plurality of digital family equipments that are connected with described digital home subnet;
Facility registration management submodule is used for closing the registration of a plurality of digital family equipments inside the Pass described digital home subnet that is connected with described digital home subnet.
According to described digital home gateway based on cable TV network, described set-top box comprises:
The channel list administration module is used to manage the channel list of the cable television program that described cable TV server end provides;
The channel search administration module is used to search for the channel list that upgrades the described cable television program that described cable TV server end provides;
The broadcast reception module is used to receive the described cable television program that described cable TV server end sends;
The providing and managing of network service function of described set-top box is provided network management module.
In order to realize another goal of the invention of the present invention, the present invention also provides a kind of and has utilized above-mentioned any described digital home gateway based on cable TV network to realize the method that digital home controls, and described method comprises:
A, modulating and demodulating signal system receive first radiofrequency signal that described cable TV server end sends, and described first radiofrequency signal is demodulated to first digital signal, and described first digital signal is sent to described digital family system; And receive second digital signal that described digital family system sends, described second digital signal is modulated into second radiofrequency signal, and described second radiofrequency signal is sent to described cable TV server end;
B, digital family system receive described second digital signal that described a plurality of digital family equipment sends, and described second digital signal is sent to described modulating and demodulating signal system; And receive described first digital signal that described modulating and demodulating signal system sends, and described first digital signal is sent to the digital family equipment of correspondence.
Technique scheme is as can be seen:
The present invention will be closed the digital family system of forming by a plurality of digital family equipments and digital home's subnet, utilize cable TV network by a modulating and demodulating signal system, be connected to the cable TV network server end, the network equipment and external network in the digital home are communicated, and realized interconnection and interflow.Therefore, utilize the digital home gateway structure based on cable TV network provided by the invention, can pass through present cable TV network, realize Long-distance Control digital home; Saved the cost of digital home's Long-distance Control exploitation and composition of the user who only has cable TV network.
Description of drawings
Fig. 1 is the structural representation of the digital home gateway based on cable TV network provided by the invention;
Fig. 2 is the structural representation based on the digital home gateway of cable TV network that one embodiment of the invention provides;
Fig. 3 is the structural representation based on the modulating and demodulating signal system in the digital home network Central Shanxi Plain of cable TV network that one embodiment of the invention provides;
Fig. 4 is the structural representation that the digital home's subnet based on the digital home network Central Shanxi Plain of cable TV network that one embodiment of the invention provides closes;
Fig. 5 is the structural representation based on the set-top box in the digital home network Central Shanxi Plain of cable TV network that one embodiment of the invention provides;
Fig. 6 is the method flow diagram of realizing the Long-distance Control of digital home based on the digital home gateway of cable TV network provided by the invention that utilizes provided by the invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Referring to Fig. 1 and Fig. 2, the invention provides a kind of digital home gateway 1 based on cable TV network, described digital home gateway 1 based on cable TV network comprises:
Modulating and demodulating signal system 11, be connected in cable TV server end 10 and digital family system 12, receive first radiofrequency signal that cable TV server end 10 sends, described first radiofrequency signal is demodulated to first digital signal, and described first digital signal is sent to digital family system 12; And receive second digital signal that digital family system 12 sends, described second digital signal is modulated into second radiofrequency signal, and described second radiofrequency signal is sent to cable TV server end 10;
Digital family system 12 is connected in modulating and demodulating signal system 11, comprises a plurality of digital family equipments 122, receives described second digital signal that a plurality of digital family equipments 122 send, and described second digital signal is sent to modulating and demodulating signal system 11; And described first digital signal that sends of received signal modulation demodulating system 11, and described first digital signal is sent to the digital family equipment 122 of correspondence.
In the informationalized epoch, the development of cable TV network has relatively early at present all been taken a fancy to cable TV in many places of China.Comparatively speaking the development of broadband network is wanted late comparatively speaking.Therefore, in the present invention, provide a kind of digital home gateway 1 that utilizes the cable TV network realization to the Long-distance Control of digital home based on cable TV network.Should comprise modulating and demodulating signal system 11 based on the digital home gateway 1 of cable TV network, this modulating and demodulating signal system 11 is mainly used to be connected to radio frequency signal---first radiofrequency signal of line television server end 10 emissions, and first radiofrequency signal is demodulated to digital signal---first digital signal, so that closing 121, can handle digital home's subnet, and receive the digital signal that transmits from digital home gateway, it is modulated into radiofrequency signal sends to external network by cable TV network, thus the interconnection and interflow of realization digital home gateway and external network.Therefore, modulating and demodulating signal system 11 can realize digital signal to the mutual conversion between the analog signal, and has very high security performance.And can realize the communication between the various device in the digital home based on the digital home gateway 1 of cable TV network, and can interconnect with external network, can realize the plug and play of equipment.
Referring to Fig. 2, in one embodiment of the invention, described digital family system 12 also comprises:
Digital home's subnet closes 121, is used for described a plurality of digital family equipments 122 are connected, and forms the man system 12 of described numeral; And receive described second digital signal that a plurality of digital family equipments 122 send, and described second digital signal is sent to described modulating and demodulating signal system 11; And described first digital signal that sends of received signal modulation demodulating system 11, and described first digital signal is sent to the digital family equipment 122 of correspondence; And/or
A plurality of digital family equipments 122 comprise set-top box 123, and set-top box 123 is used to receive the cable television program that cable TV server end 10 sends.
In the present invention, digital family system 12 is to close 121 with various families communication products, computer product, consumer electronics product by digital home's subnet, according to all kinds of family digital demands, forms digital home network.By the access and the social omnibearing information interaction of external network, form family information, amusement, control service and informational function system; And a kind of local area network (LAN) that information equipment, communication equipment, amusement equipment, household electrical appliance, water power hot air heating gauge table, health care equipment, illuminator and the safety system etc. of family's category are linked together and form.Various digital family equipments 122 are realized networking by home network, realize the management and service of diverse networkization, realize sharing of resource and service.Set-top box 123 is used for receiving and display standard definition/high definition digital television, digital audio broadcasting, demonstration notice information, reception user mail, program searching, channel switching and functions such as editor, automatic installation and update software.Cable TV server end 10 provides signals such as single-definition/high definition digital television, digital audio broadcasting.
Referring to Fig. 3, in one embodiment of the invention, modulating and demodulating signal system 11 comprises:
Wherein, broadcast interface module 111 is used for from numbers such as service provider's receiver, video, audio frequency, texts.Referring to Fig. 3, broadcast interface module 111 comprises:
Radio frequency interface is conciliate tune module 1111, is used to receive described first radiofrequency signal that cable TV server end 10 sends, and the described first radiofrequency signal demodulation is obtained described first digital signal;
The position is used for that described first digital signal after Error processing submodule 1112 Error processing is carried out the position and handles to the mapping of byte to the mapping submodule 1113 of byte; And,
Digital decrypted submodule 1114, described first digital signal after the mapping submodule 1113 that is used for that byte is put in place is carried out mapping that byte puts in place and handled is carried out digital decrypted and is handled, and described first digital signal after will decipher sends to digital home subnet pass 121.
Therefore, broadcast interface module 111 has the function of radio frequency physical interface and demodulator; Signal to demodulation carries out the function that error analysis is handled; The position is to the mapping function of byte; And the function of data decryption.Radio frequency interface is conciliate tune module 1111 in first radiofrequency signal of down link median filter reception from cable TV network, first radiofrequency signal is delivered to demodulator carry out demodulation.First digital signal that obtains after the demodulation; 1112 pairs of described first digital signals of Error processing submodule deinterleave and error correction after, the mapping submodule 1113 that puts in place through byte closes 121 by importing the data encapsulation framing into the digital home subnet after 1114 deciphering of digital decrypted submodule at last with the mapping function of data from the bit to the byte again.
And interactive interface module 112 comprises:
The mapping submodule 1122 that byte puts in place is used for described second digital signal after 1123 encryptions of data encryption submodule is carried out the mapping processing that byte puts in place; And,
Digital signal modulation and transmission submodule 1121, described second digital signal after mapping submodule 1122 mappings that are used for that byte is put in place are handled is modulated, obtain described second radiofrequency signal, and described second radiofrequency signal is sent to cable TV server end 10.
Therefore, interactive interface module 112 is used for sending to cable TV service provider the control information of request msg; It has the function that data are encrypted; Mapping function that byte puts in place and the function that digital signal is modulated.In up link, user's access request is handled through MAC (Mdium Access Control, medium access control layer) processor earlier, after system front end is admitted application, digital home's subnet closes 121 and produces upstream data, sends into modulating and demodulating signal system 11 through network interface card.1123 pairs of upstream datas of data encryption submodule are encrypted afterwards, the mapping submodule 1122 that byte puts in place is encoded to upstream data after the mapping of bit through byte, again through interweaving/FEC (Forward Error Control, forward error control) after the processing, digital signal modulation and transmission submodule 1121 modulator are then modulated upstream data, send into the HFC net by filter at last.Encryption for signal, it flows into and adopts 64QAM (quadrature amplitude modulation, quadrature amplitude modulation) or the cipher mode of 256QAM modulation, flow out the manner of decryption that adopts QPSK (Quadrature Phase Shift Keying, orthogonal PSK) or 16QAM.Modulating and demodulating signal system 11 has very high security performance and is: can carry out encrypt and decrypt to the data of inflow/outflow CM.
Referring to Fig. 3, modulating and demodulating signal system 11 also comprises:
Hardware testing interface module 114 is used to connect and need be connected with modulating and demodulating signal system 11 and carries out the equipment of hardware testing;
Radio frequency interference module 115 is used to reduce the suffered radio frequency interference of modulating and demodulating signal system 11.
For modulating and demodulating signal system 11 management interface submodule 113 is set, the management equipment of modulating and demodulating signal system 11 can be connected into the described modulating and demodulating signal system 11 that connects and realize bookkeeping.And insert the hardware device of modulating and demodulating signal system 11 for needs, can insert by hardware testing interface module 114 and carry out test and debugging.In addition, radio frequency interference module 115 can reduce the suffered radio frequency interference of modulating and demodulating signal system 11.
Referring to Fig. 4, in one embodiment of the invention, digital home's subnet closes 121 and comprises:
Referring to Fig. 4, in a preferred embodiment of the invention, described administration module 1213 comprises:
Quality of service submodule 12132 is used for the quality of service service of digital home subnet pass 121;
Equipment state management submodule 12134 is used to manage the equipment state of closing the 121 a plurality of digital family equipments 122 that are connected with the digital home subnet;
Editing equipment management submodule 12135 is used to control the equipment state of closing the 121 a plurality of digital family equipments 122 that are connected with the digital home subnet;
Facility registration management submodule 12136 is used for and the registration of digital home's subnet pass 121 a plurality of digital family equipments 122 that are connected in digital home subnet pass 121.Execution effect by above-mentioned a plurality of submodules, digital family equipment 122 can realize that the realization of plug-and-play feature is: when being used for adding a digital family equipment 122 at its home network, this digital home's subnet closes 121 can perceive this equipment at once, and will be this devices allocation address, in the equipment control table that this equipment adds.
Referring to Fig. 5, in one embodiment of the invention, set-top box 123 comprises:
Channel list administration module 1231 is used to manage the channel list of the cable television program that cable TV server end 10 provides; This module is used for realizing having channel master list order rearrangement, channel locks and channel editting function such as favorite channels is set.The editor of favorite channels tabulation comprises interpolation, deletion, ordering program etc.
Channel search administration module 1232 is used to search for the channel list that upgrades the described cable television program that cable TV server end 10 provides; This module is used to realize the search automatically of NIT (Network Information Table, network information table) table, single-frequency point manual search dual mode.The fast automatic channel searching of NIT (frequency is 379MHz), COS comprises television channel, broadcasting channel, data broadcast service, NVOD (Near Video on Demanding, the quasi-video request program business), VOD (Video on Demand, video request program), business such as two-way mutual application, show the search progress during search, and TV and audio broadcasting program are sorted automatically by the logical channel numbers order respectively.The channel start sequence number is 1.The channel bank that single-frequency point manually searches out is in the back of channel list, and what service ID and front channel repeated does not add in tabulation.
The providing and managing of network service function of set-top box 123 is provided network management module 1234.This functions of modules is used to realize compartmentalization function and area filter function; When receiving demonstration notice information function, not intervene as the user, notice information shows always; Can preserve the mail more than 10, have prompting, bulletin that repeats to send and mail not to repeat to show when receiving mail; Can be in the air or local software download, install automatically and upgrade; Basic function software can preset.Therefore, set-top box 123 can receive and show high definition/SD audio-video-frequency broadcast signal, and can realize Network Management Function.The user can carry out software upgrading by set-top box 123, receives mail, services such as bulletin.
Referring to Fig. 6, in order to realize another goal of the invention of the present invention, the present invention also provides a kind of and has utilized above-mentioned any described digital home gateway 1 based on cable TV network to realize the method that digital home controls, and described method comprises:
In step S601, modulating and demodulating signal system 11 receives first radiofrequency signal that described cable TV server end 10 sends, and described first radiofrequency signal is demodulated to first digital signal, and described first digital signal is sent to described digital family system 12; And receive second digital signal that described digital family system 12 sends, described second digital signal is modulated into second radiofrequency signal, and described second radiofrequency signal is sent to described cable TV server end 10; First radiofrequency signal is the control signal that sends of cable TV server end 10 and cable television program signal etc.Second digital signal then is that the user that the digital family equipment 122 in the digital family system 12 sends operates corresponding signal etc.
In step S602, digital family system 12 receives described second digital signal that described a plurality of digital family equipments 122 send, and described second digital signal is sent to described modulating and demodulating signal system 11; And receive described first digital signal that described modulating and demodulating signal system 11 sends, and described first digital signal is sent to the digital family equipment 122 of correspondence.After need changing, digital signal and radiofrequency signal can in corresponding equipment, be suitable for.
Need to prove, the device in the method for above-mentioned digital home control and the content of the information interaction between intrasystem each module, implementation etc., since with the embodiment of the digital home gateway 1 based on cable TV network of the present invention based on same design, particular content can repeat no more referring to the narration among digital home gateway 1 embodiment that the present invention is based on cable TV network herein.
In a sub-district owing to the geographical position reason, all do not realize the target of broadband for many years to the family, but the network of Cable TV (cable TV) has been disposed in this sub-district, so the user here just can by broadcasting and TV through the Cable TV network transformed, but the target that will realize intellectuality, hommization in digital home also needs to have the product of a digital home's Common Gateway based on Cable TV.Can be the television set of family, PC, camera, a whole cover Smart Home product is linked this home gateway.The user can be very easily by PC or set-top box 123 in this gateway, enter the gateway inlet of Smart Home, like this user just can be very easily by remote controller or mouse be in or leave home curtain in thousands of kilometers the place control family, light, door lock, the first-class home equipment of making a video recording, thus realize real intellectuality life.
One of ordinary skill in the art will appreciate that all or part of step in the whole bag of tricks of the foregoing description is to instruct relevant hardware to finish by program, this program can be stored in the computer-readable recording medium, storage medium can comprise: ROM (Read Only Memory, read-only memory), the RAM random access memory, (Random Access Memory), disk or CD etc.
The present invention will be closed the digital family system of forming by a plurality of digital family equipments and digital home's subnet, utilize cable TV network by a modulating and demodulating signal system, be connected to the cable TV network server end, the network equipment and external network in the digital home are communicated, and realized interconnection and interflow.Therefore, utilize the digital home gateway structure based on cable TV network provided by the invention, can pass through present cable TV network, realize Long-distance Control digital home; Saved the cost of digital home's Long-distance Control exploitation and composition of the user who only has cable TV network.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (10)
1. the digital home gateway based on cable TV network is characterized in that, described digital home gateway based on cable TV network comprises:
The modulating and demodulating signal system, be connected in cable TV server end and digital family system, receive first radiofrequency signal that described cable TV server end sends, described first radiofrequency signal is demodulated to first digital signal, and described first digital signal is sent to described digital family system; And receive second digital signal that described digital family system sends, described second digital signal is modulated into second radiofrequency signal, and described second radiofrequency signal is sent to described cable TV server end;
Digital family system is connected in described modulating and demodulating signal system, comprises a plurality of digital family equipments, receives described second digital signal that described a plurality of digital family equipment sends, and described second digital signal is sent to described modulating and demodulating signal system; And receive described first digital signal that described modulating and demodulating signal system sends, and described first digital signal is sent to the digital family equipment of correspondence.
2. the digital home gateway based on cable TV network according to claim 1 is characterized in that, described digital family system also comprises:
Digital home's subnet closes, and is used for described a plurality of digital family equipments are connected, and forms the man system of described numeral; And receive described second digital signal that described a plurality of digital family equipment sends, and described second digital signal is sent to described modulating and demodulating signal system; And receive described first digital signal that described modulating and demodulating signal system sends, and described first digital signal is sent to the digital family equipment of correspondence; And/or
Described a plurality of digital family equipment comprises set-top box, and described set-top box is used to receive the cable television program that described cable TV server end sends.
3. the digital home gateway based on cable TV network according to claim 2 is characterized in that, described modulating and demodulating signal system comprises:
The broadcast interface module, described broadcast interface module receives described first radiofrequency signal that described cable TV server end sends, the described first radiofrequency signal demodulation is obtained described first digital signal, and described first digital signal is sent to described digital home subnet pass;
The interactive interface module, described interactive interface module receives described digital home subnet and closes described second digital signal that sends, described second digital signal modulation is obtained described second radiofrequency signal, and described second radiofrequency signal is sent to described cable TV server end.
4. the digital home gateway based on cable TV network according to claim 3 is characterized in that, described broadcast interface module comprises:
Radio frequency interface is conciliate the tune module, is used to receive described first radiofrequency signal that described cable TV server end sends, and the described first radiofrequency signal demodulation is obtained described first digital signal;
The Error processing submodule is used for described first digital signal that the demodulation of described radio frequency interface reconciliation tune module obtains is carried out Error processing;
The position is used for that described first digital signal after the described Error processing submodule Error processing is carried out the position and handles to the mapping of byte to the mapping submodule of byte; And,
Described first digital signal that digital decrypted submodule, the mapping submodule that is used for that described byte is put in place carry out mapping that byte puts in place after handling is carried out digital decrypted and is handled, and described first digital signal after will decipher sends to described digital home subnet pass.
5. the digital home gateway based on cable TV network according to claim 3 is characterized in that, described interactive interface module comprises:
The data encryption submodule is used for second digital signal that described a plurality of digital family equipments send is encrypted;
The mapping submodule that byte puts in place is used for described second digital signal after the described data encryption submodule encryption is carried out the mapping processing that byte puts in place; And,
Digital signal modulation and transmission submodule, described second digital signal after the mapping submodule mapping that is used for that described byte is put in place is handled is modulated, obtain described second radiofrequency signal, and described second radiofrequency signal is sent to described cable TV server end.
6. the digital home gateway based on cable TV network according to claim 3 is characterized in that, described modulating and demodulating signal system also comprises:
The management interface submodule is used to connect the management equipment of described modulating and demodulating signal system;
The hardware testing interface module is used to connect and need be connected with described modulating and demodulating signal system and carries out the equipment of hardware testing;
The radio frequency interference module is used to reduce the suffered radio frequency interference of described modulating and demodulating signal system.
7. the digital home gateway based on cable TV network according to claim 2 is characterized in that, described digital home subnet closes and comprises:
Insert output module, be used for described modulating and demodulating signal system is connected with a plurality of digital family equipments of described digital family system, and described first digital signal sent to the digital family equipment of correspondence; And described second digital signal that described a plurality of digital family equipments send sent to described modulating and demodulating signal system;
Networking module is used for a plurality of digital family equipments of described digital family system are connected;
Administration module is used for the management of described a plurality of digital family equipment at described digital family system;
The control service module is used to control the service that described a plurality of digital family equipment provides;
The multimedia service module, being used for described a plurality of digital family equipment provides multimedia service;
Data service module, being used for described a plurality of digital family equipment provides data, services.
8. the digital home gateway based on cable TV network according to claim 7 is characterized in that, described administration module comprises:
The safety monitoring submodule is used to monitor the security of operation that described digital home subnet closes;
The quality of service submodule is used for the quality of service service that described digital home subnet closes;
The address submodule is used to distribute the address information of closing a plurality of digital family equipments that are connected with record and described digital home subnet;
Equipment state management submodule is used to manage the equipment state of closing a plurality of digital family equipments that are connected with described digital home subnet;
The editing equipment management submodule is used to control the equipment state of closing a plurality of digital family equipments that are connected with described digital home subnet;
Facility registration management submodule is used for closing the registration of a plurality of digital family equipments inside the Pass described digital home subnet that is connected with described digital home subnet.
9. the digital home gateway based on cable TV network according to claim 2 is characterized in that, described set-top box comprises:
The channel list administration module is used to manage the channel list of the cable television program that described cable TV server end provides;
The channel search administration module is used to search for the channel list that upgrades the described cable television program that described cable TV server end provides;
The broadcast reception module is used to receive the described cable television program that described cable TV server end sends;
The providing and managing of network service function of described set-top box is provided network management module.
10. one kind is utilized any described digital home gateway based on cable TV network of claim 1～9 to realize the method that digital home controls, and it is characterized in that described method comprises:
A, modulating and demodulating signal system receive first radiofrequency signal that described cable TV server end sends, and described first radiofrequency signal is demodulated to first digital signal, and described first digital signal is sent to described digital family system; And receive second digital signal that described digital family system sends, described second digital signal is modulated into second radiofrequency signal, and described second radiofrequency signal is sent to described cable TV server end;
B, digital family system receive described second digital signal that described a plurality of digital family equipment sends, and described second digital signal is sent to described modulating and demodulating signal system; And receive described first digital signal that described modulating and demodulating signal system sends, and described first digital signal is sent to the digital family equipment of correspondence.
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