CN101227290B - Data transmission method of household network and system and device of household network building - Google Patents
Data transmission method of household network and system and device of household network building Download PDFInfo
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- CN101227290B CN101227290B CN2007100011877A CN200710001187A CN101227290B CN 101227290 B CN101227290 B CN 101227290B CN 2007100011877 A CN2007100011877 A CN 2007100011877A CN 200710001187 A CN200710001187 A CN 200710001187A CN 101227290 B CN101227290 B CN 101227290B
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Abstract
The invention relates to a method for transmitting data in a home network and a networking system and a device of the home network, which comprises: deciding a communication transmitting mode and a communication channel for transmitting service data of a first terminal and terminal equipment in the home network by a home gateway, sending determined information which is corresponded with determined results by the home gateway if the first terminal or the terminal equipment transmits or communicates the service data for the first time or the determined results of the home gateway need switching the communication transmitting mode and the communication channel, confirming the communication transmitting mode and the communication channel according to the determined information by the first terminal and the terminal equipment, and transmitting the service data according to the communication transmitting mode and the communication channel which are determined. The invention well supports various network accesses and communications of different types of terminals, can carry out wire communication and wireless communication simultaneously in the home network, can switch between the wire communication and the wireless communication automatically, and is provided with enough data transmission ability to satisfy different business requirements.
Description
Technical field
The present invention relates to the network communications technology, relate in particular to a kind of data transmission method of home network and home network group network system, device.
Background technology
The network organizing technology is applied to the various aspects of producing, living more and more at large, adopt the network organizing technology can with produce, various terminals in the life link together, thereby these terminals of use that can be convenient, flexible are raised the efficiency.
Home Networking (home networking) technology that has occurred can be with many terminals, couple together such as the IA that possesses various communication capacities (information household appliances), integrate, form the one family network, so not only can communicate mutually between the terminal in these families, and the various terminals outside these terminals and the family also can communicate mutually.Like this, adopt the home networking technology, one family is become Smart Home (wired home), wired home can provide various convenient application.
The home intranet technology of home network inside mainly includes line communication technology and wireless communication technology two big classes.The application of cable communicating technology on home intranet mainly is by the various possible wire transmission media of household internal, as 5 class lines, coaxial cable, telephone wire, cable of cable TV and the power line of laying in the family etc., the various terminals of household internal are coupled together, to realize the interconnection and interflow each other of various terminals.The application of wireless communication technology on home intranet mainly is by wireless technology and standard thereof, the various terminals of household internal are coupled together, to realize the interconnection and interflow each other of various terminals, a kind of typical wireless communication technology is a WiFi (WLAN (wireless local area network), be the WLAN (wireless local area network) of general reference based on the IEEE802.11 standard series) technology, mainly be to adopt common WiFi technology and standard thereof, as IEEE802.11x (WLAN standard series), IEEE802.15x (Wireless Personal Network standard series), HomeRF (a kind of household digital cordless standard) etc. carry out the connection of various terminals.
For the cable communicating technology that is applied to home network, mainly contain following several industrial standard at present: first kind, when having 5 class lines in the family, can adopt ethernet lan (local area network (LAN)) standard, can carry out the household internal networking according to the technology and the standard of ethernet lan; Second kind, when utilizing the existing telephone line to carry out home networking, can adopt the HomePNA (household telephone wires networking technology standard) that formulates by Home Phoneling Networking Alliance, its cardinal principle and DSL (Digital Subscriber Line) are similar, promptly support speech, wideband data and home networking business simultaneously with ordinary telephone line, its speed can be up to 128Mbit/s, and the user can be connected to network as long as terminal is inserted the telephone wire socket; The third, when utilizing power line to carry out home networking, can adopt the HomePlug standard of releasing by HomePlug (a kind of power line communication technology standard series) alliance, it is based on OFDM (OFDM) technology, utilize the outlet of family to realize family internal network, in the HomePlug of up-to-date issue in the end of the year 2005 AV (a kind of power line communication technology standard of suitable audio frequency and video transmission), the maximum transmission rate that utilizes power line to carry out the data communication of home networking has been brought up to 200Mbps; The 4th kind, when the coaxial cable that utilizes cable TV is networked, the standard that can adopt at the beginning of 2004 MoCA (multimedia over Coax Alliance) normal structure set up to issue, the technical standard that is WiFi is applied on the coaxial cable, it is to utilize the standard of existing cable of cable TV as home networking, the interoperability of verification terminal, allow television set, top box of digital machine, DVR (hard disk video tape recorder), DVD (Digital video disc), numeral VHS (video home system), CD/MP3 (CD/third generation music player) can interconnect with PC terminals such as (PC).
Therefore, when adopting cable communicating technology to carry out the home intranet of home network inside, the higher relatively a kind of typical application of transmission rate is the home network that carries out networking based on PLC (power line communication) technology at present, as shown in Figure 1.Comprise: terminals such as IP phone (networking telephone), computer, digital camera, information household appliances and security protection equipment, be connected to each other by power line between them, and all link to each other with trap with home gateway, home gateway links to each other with external network, and trap links to each other with power supply house lead in end.
For the home network that adopts the cable communicating technology networking, no matter specifically adopt described which kind of technology, all there is following shortcoming:
The first, the terminal of home network networks and is subjected to very big restriction.Because no matter which kind of cable communicating technology all must connect based on wired plug, thereby require terminal must possess corresponding interface and communication capacity.And the terminal of common existing household internal seldom possesses corresponding wireline interface, thereby has limited the type of the terminal that can network; And for existing in many home networks or the following terminal that will occur, normally do not need not wish to carry out wired connection, as PDA (personal digital assistant), MP3/4 (can play the player of the audio file of this audio compression form of mpeglayer3/4 (compression standard)) etc. yet;
The second, data transmission capabilities is limited, and the most technical standards in the cable communicating technology all can't be supported all business of following home network effectively.In the cable technology of domestic network internet, what the relative data transmittability was stronger is coaxial cable and power line, and still, coaxial cable is subjected to the serious restriction of above-mentioned coverage rate; And power line communication technology, though its HomePlug AV standard has been brought up to 200Mbps with the peak rate of transfer of data, but miscellaneous service demand with respect to the home network in future, the such high-definition multimedia business of many HDTV (HDTV (High-Definition Television)) that for example following many families all can exist, need transmit many cover HDTV data flow simultaneously in family's network internal, because the flow of HDTV data flow is very big, so existing basically cable communicating technology all can't meet the demands, can not satisfy the required technical capability of following home networking far away on data transmission rate.
With respect to the networking mode of cable communicating technology, adopt the low coverage wireless communication technology to realize that the networking of home network inside is another kind of home intranet mode commonly used.Wherein, the most common and direct solution is to replace various entity connection devices such as cable, telephone wire with the WiFi local area network (LAN).Adopt home network schematic diagram that the low coverage wireless communication technology carries out networking as shown in Figure 2, set up CP (tie point) by portion within the family, and realize communicating to connect and controlling between the integrated terminal (such as notebook computer) of low coverage wireless communication technology of portion within the family.
In the low coverage wireless communication technology of home intranet, comparatively common concrete technology and standard mainly comprises IEEE802.11 and IEEE802.15 series at present, and HomeRF etc.In IEEE802.15 series, mainly comprise ZigBee (a kind of near radio network technology), basket tooth and UWB (ultra broadband).Wherein IEEE802.11n is relative stronger low coverage wireless communication technology and a standard of data transmission capabilities with UWB; The WiFi of IEEE802.11 is studying at present and is preparing to release new WLAN (WLAN (wireless local area network)) standard---IEEE802.11n, and it brings up to 320Mbps by adopting some state-of-the-art technologies with the flank speed of transfer of data; The transfer of data peak rate of UWB can reach higher, and as 480Mbps, but its communication distance is very limited, is generally less than 10 meters.Usually data transmission capabilities and communication distance are inversely proportional to.The data transmission capabilities of remaining WiFi technology is all relatively low.
But, adopt low coverage wireless communication technology and standard to carry out the home network networking, there is following major defect:
The first, the terminal of home network networks and is subjected to very big restriction.Because no matter which kind of low coverage wireless communication technology all necessarily requires terminal to possess corresponding interface and communication capacity, and the terminal of common existing household internal possesses the also few of respective wireless interface, thereby the terminal that causes networking is subjected to great restriction.
The second, data transmission capabilities is very limited, can't satisfy the following professional demand of home network.In the commonly used low coverage wireless communication technology of family's network organizing, stronger relatively aspect data transmission capabilities is IEEE802.11n and UWB.For IEEE802.11n, although it is by adopting various new technologies, the particularly introducing of MIMO (multiple-input and multiple-output) technology, the peak rate of transfer of data has been brought up to 320Mbps, but during practical communication, the handling capacity of data can not reach such speed far away, and, the MIMO technology is for home network, feasibility is very low, if lacked the MIMO technology, the data transmission capabilities of IEEE802.11n will be suitable with present IEEE802.11a/b/g (WLAN standard series), the peak rate that is to say its transfer of data can not exceed than present 54Mbps a lot, and such data transmission capabilities is the business demand that can not satisfy following home network far away; For UWB, except above-mentioned coverage rate problem,, also be to be difficult to reach the higher data transmission rate if realize the communication of whole home-ranges, even might be because the restriction of power can't realize the communication of whole home-ranges at all.As for other low coverage wireless communication technology, message transmission rate is lower, all is low speed basically, more can not satisfy the demand of following family network service.
Except adopting independent wired or low coverage wireless communication technology to finish the home network networking, also there is home network networking mode, as shown in Figure 3 with cable communicating technology and the direct combination of low coverage wireless communication technology.Fig. 3 is the home network schematic diagram of cable communicating technology and the combination of low coverage wireless communication technology, this networking mode adopts trunking method, between wire communication and low coverage radio communication, carry out continued access and intercommunication, thereby realize the coexistence of the inner catv terminal of home network and low coverage wireless terminal and cable communicating technology and low coverage wireless communication technology with the form of relaying.Under this networking mode, the terminal of home network is divided into two classes, one class is a catv terminal, another kind of is the low coverage wireless terminal, it is the interface of terminal or wired, or be wireless, and will communicate between different types of terminal the time, must between wire transmission and low coverage wireless transmission, carry out relaying and could realize.
Adopt the home network networking mode of cable communicating technology and the combination of low coverage wireless communication technology to have following major defect:
The first, equally there is the limited problem of terminal networking.Because the existing terminal that has does not have communication capacity and the corresponding interface at all,, then need to carry out the transformation and the expansion of the communication capacity of terminal if this terminal networks.In addition, have the terminal of specific communications ability and interface, the possibility that need carry out capacity of equipment transformation and expansion is also arranged, to adapt to the new communication capacity and the requirement of interface for part.
The second, equally there is the limited problem of data transmission capabilities, can't satisfies the following professional demand of home network.Although realized cable communicating technology and the coexistence of low coverage wireless communication technology in home network, but for each terminal, its communication interface has only a kind of, promptly or be wired, or it is wireless, therefore, aspect data transmission capabilities, the existing home network networking mode of cable communicating technology and the combination of low coverage wireless communication technology that adopts adopts cable communicating technology and only adopts the networking mode of low coverage wireless communication technology identical with above-mentioned in itself, and promptly each terminal has only a transmission channel.And under trunking scheme, the data transmission capabilities of transmission channel is subject to the transmission technology with lower data transmittability, so its data transmission capabilities is the business demand that is difficult to satisfy following home network.
Thereby all there be limited problem and the limited problem of data transmission capabilities of terminal networking in existing home network networking mode.Do not have technical scheme at present, can be good at addressing these problems.
Summary of the invention
The method, system and device of the home network networking that the embodiment of the invention provides, have a plurality of transmission channels, can in home network, carry out wire communication and radio communication simultaneously, the terminal that assurance has various communication capacities and interface can successfully add home network, and has enough data transmission capabilities to satisfy different business demands.
The embodiment of the invention is achieved through the following technical solutions:
The embodiment of the invention provides a kind of data transmission method of home network, and described method comprises:
First terminal or terminal equipment carry out the communications mode and the channel of business data transmission in A, the home gateway decision home network; Comprise: home gateway is monitored each channel variance situation, and more detected channel variance situation, make the decision whether first terminal or terminal equipment need to switch communications mode and channel, if the determination result of home gateway is switched communications mode and channel for needing, then described home gateway sends to described first terminal or terminal equipment with the decision information of described determination result correspondence; The decision information of described determination result correspondence comprises the channel information of concrete switching time, communication, at least one in the communications mode;
B, described first terminal or terminal equipment receive after the described decision information, determine corresponding communications mode and channel according to described decision information;
C, described first terminal or terminal equipment carry out the transmission of business datum according to communications mode and the channel determined.
The embodiment of the invention provides a kind of home gateway, comprising:
Characteristic of channel decision unit is used for determining that home network first terminal or terminal equipment carry out the communications mode and the channel of business data transmission;
Judging unit is used to judge whether the characteristic of channel to be determined that the decision information of the determination result correspondence of unit decision sends to first terminal or terminal equipment; The decision information of described determination result correspondence comprises the channel information of concrete switching time, communication, at least one in the communications mode;
Transmitting element is used for the decision information of determination result correspondence to be sent under first terminal or the terminal equipment situation in described judgment unit judges as a result, and described decision information is sent to described first terminal or terminal equipment.
The embodiment of the invention provides a kind of adapter that is used for home network, comprises network interface unit, terminal interface unit, control unit and data processing unit, wherein,
Network interface unit is used to provide the interface that links to each other with home network;
Terminal interface unit is used to provide the interface that links to each other with second terminal;
Control unit is used for the control information according to the decision information of data processing unit transmission, generates control command, and described control command is sent to data processing unit;
Data processing unit be used for receiving the decision information that home gateway sends by network interface unit, and the control information in the decision information that control unit is required sends to control unit; And, be used for control command according to the control unit transmission, be configured renewal, activate corresponding network interface unit and terminal interface unit, finish the conversion of the data format between network interface unit and the terminal interface unit and the transmission of data traffic information;
Described decision information is that first terminal or terminal equipment carry out the communications mode of business data transmission and the information of channel in the home network of home gateway decision.
The embodiment of the invention provides a kind of system of home network networking, and described system carries out the networking of home network with wired and communication, comprising:
At least one home gateway, described home gateway are used for management and control whole home network, have wired and wireless communication ability, and can carry out wire communication and radio communication;
First terminal or terminal equipment carry out the communications mode and the channel of business data transmission in the described home gateway decision home network; If the determination result of home gateway is switched communications mode and channel for needing, then home gateway sends to described first terminal or terminal equipment with the decision information of described determination result correspondence; The decision information of described determination result correspondence comprises the channel information of concrete switching time, communication, at least one in the communications mode;
At least one first terminal and/or at least one terminal equipment;
Described first terminal or terminal equipment receive after the described decision information, determine the corresponding communications mode and the operation of channel according to described decision information; Described first terminal or terminal equipment carry out the transmission of business datum according to communications mode and the channel determined;
The communication mode that described first terminal support and home network adapt, and switching capability with communication mode;
Described terminal equipment comprises adapter, and independently links to each other or the integrated second continuous terminal with adapter; The concrete connected mode of described adapter and described second terminal is wired or wireless connected mode; Described second terminal is carried out the transmission of business datum and other relevant informations by adapter;
Described adapter is used to expand the communication capacity of described second terminal.
The technical scheme that is provided by the invention described above embodiment as can be seen, the embodiment of the invention adopts a kind of data transmission method of home network and home network group network system, device, the networking of well having supported various different types of terminals with communicate by letter, the automatic switchover between wire communication and radio communication and wired and the radio communication can be in home network, carried out simultaneously, and the demand of the various communication services present and following in the home network and the requirement of QoS (service quality) thereof can be satisfied.
Description of drawings
Fig. 1 carries out networking for prior art based on power line communication technology home network schematic diagram;
The home network schematic diagram that Fig. 2 adopts the low coverage wireless communication technology to carry out networking for prior art;
Fig. 3 adopts the home network schematic diagram of cable communicating technology and the combination of low coverage wireless communication technology for prior art;
Fig. 4 is the specific implementation schematic diagram of the method for an embodiment the present invention relates to;
The adapter that Fig. 5 relates to for the embodiment of the invention and the transfer of data flow process figure of system;
The home network architecture figure that Fig. 6 relates to for the embodiment of the invention based on home gateway and adapter;
The home network schematic diagram that Fig. 7 relates to for the embodiment of the invention based on PLC and the networking of WiFi technology;
The specific implementation schematic diagram of the system of the embodiment that Fig. 8 relates to for the embodiment of the invention;
Fig. 9 forms schematic diagram for the functional structure of the adapter that the embodiment of the invention relates to;
The interface that the terminal interface unit that Figure 10 relates to for the embodiment of the invention provides is the adaptive of A/V interface
The functional structure of device is formed schematic diagram.
Embodiment
When the technical scheme that the embodiment of the invention provides is carried out networking at home network, adopt cable communicating technology and wireless communication technology simultaneously, by the control of home gateway, various dissimilar first terminal and/or the terminal equipment of home network inside effectively connected.
Described first terminal has communication mode and the channel that adapts with home network, and the switching capability of communication mode and channel;
Described terminal equipment comprises second terminal, and independently links to each other or integrated continuous adapter with described second terminal; Described second terminal does not have communication mode and the channel that adapts with home network, and/or the switching capability of communication mode and channel; The concrete connected mode of described adapter and described second terminal is wired or wireless connected mode; Second terminal in the terminal equipment is carried out the transmission of business datum and other relevant informations by adapter.
Particularly, in the described home network of the embodiment of the invention, the type of terminal can comprise first terminal and second terminal, and the connected mode of itself and home network comprises following several situation:
First kind, described terminal has the wired and wireless communication interface that adapts with home network simultaneously, and can communicate the switching of mode and channel.That is, this terminal self with interface meet the demand of home network, when needs carry out wire communication, communicate by the wired communication interface on it; When needs carry out radio communication, communicate by the wireless communication interface on it.In this case, described terminal is first terminal.
Second kind, described terminal has the wired and wireless communication interface that adapts with home network simultaneously, but can not communicate the switching of mode and channel.That is, this terminal can not be finished switching wired and communication and channel automatically.At this moment, communicate at needs under the situation of transmission means and channel switching, can carry out manual switchover, also can on described terminal, connect the adapter with automatic switching function, compositing terminal equipment.In this case, described terminal is second terminal.
The third, though have wired communication interface and wireless communication interface on the described terminal simultaneously, these interfaces wire communication mode and communication required with inserting home network is incompatible.That is, this terminal self with interface do not meet the demand of home network, when networking, need on this terminal, connect the adapter that adapts with the communication mode that need carry out, compositing terminal equipment.That is, this terminal equipment and first terminal are similar, can carry out wired and/or radio communication; When the adapter that connects on this terminal had only the wired communication interface that adapts with home network or wireless communication interface, this terminal can only be carried out corresponding wire communication or radio communication.In this case, described terminal is second terminal.
The 4th kind, on the described terminal without any the interface that adapts with home network.At this moment, when this terminal networks, should on described terminal, connect the adapter that adapts with the communication mode that need carry out, compositing terminal equipment.That is, this terminal equipment and first terminal are similar, can carry out wired and/or radio communication; When the adapter that connects on this terminal had only the wired communication interface that adapts with home network or wireless communication interface, this terminal was merely able to carry out corresponding wire communication or radio communication.In this case, described terminal is second terminal.
The 5th kind, has the wired or wireless communication interface that adapts with home network on the described terminal.At this moment, if do not have connection adaptor on this terminal, then this terminal can only be carried out wired or wireless communication; After on this terminal, having connected the adapter that adapts with home network with wireless or wired communication interface, compositing terminal equipment, the described terminal equipment and first terminal are similar, can carry out wired and/or radio communication.In this case, described terminal is second terminal.
Promptly, the terminal in the described home network of the embodiment of the invention, the interface no matter terminal had originally is any situation, the interface that has can be connected in the home network, all can be by on terminal, connecting suitable adapter, compositing terminal equipment reaches described terminal and home-network linkups, and can communicate the purpose that mode is selected flexibly.Wherein, commonplace and application easily is, after terminal is connected to form terminal equipment by adapter and home gateway, each terminal can have a plurality of transmission channels, and in concrete transmission course, can select suitable relatively transmission channel to carry out the transmission of business datum according to the concrete control of home gateway.Be connected to form by adapter and home gateway under the situation of terminal equipment in terminal, this terminal is second terminal of the present invention.
By the type of above-mentioned five kinds of terminals and with the connected mode of home network as can be seen, first terminal and terminal equipment can satisfy the communication mode and the channel of home network, and the switching capability of communication mode and channel; If connect suitable adapter on the terminal of the needs that can not satisfy home network, so that this terminal can satisfy the needs of home network, then this terminal is second terminal, and this terminal is with adapter compositing terminal equipment.
At least one wireless communication interface and/or at least one wired communication interface that adapt with home network that adapter in the terminal equipment has, the concrete number of wireless communication interface and wired communication interface can be carried out flexible configuration according to the needs of second terminal and home network.That is, several wireless communication interfaces and/or wired communication interface can be on adapter, disposed, also a wireless communication interface and/or wired communication interface can be only disposed.
Described cable communicating technology comprises various cable communicating technologies, includes but not limited to described cable communicating technology based on transmission mediums such as 5 class lines, coaxial cable, telephone wire, cable of cable TV and power lines.
Described wireless communication technology is mainly the low coverage wireless communication technology, includes but not limited to various low coverage wireless communication technologys, mainly comprises the technology of IEEE802.11x, IEEE802.15x defined.
The realization schematic diagram of an embodiment of the data transmission method of the home network of the embodiment of the invention specifically comprises as shown in Figure 4:
Step 40: the communications mode and the channel of business data transmission carried out in the home gateway decision; If first terminal or terminal equipment carry out first business data transmission and communicate by letter, perhaps the determination result of home gateway is switched communications mode and channel for needing, and then described home gateway sends to described first terminal or terminal equipment with the decision information of determination result correspondence; Be specifically as follows:
If carry out the transmission of first business datum between home gateway and first terminal or the terminal equipment, system will need switch according to transmission means and handle, promptly before carrying out business data transmission and communicating by letter, detect the characteristic of wire message way and wireless channel earlier, the communications mode and the channel of business data transmission at first carried out in decision, and notifies first terminal or adapter with the decision information of described determination result correspondence; Described decision information can comprise: at least one information in the correlation properties of the channel information of communication, communications mode and business datum;
In the transmission and communication process of data, home gateway is monitored each channel variance situation, and more detected channel variance situation, makes the decision whether first terminal or terminal equipment need to switch communications mode and channel; Be specifically as follows: home gateway regularly detects with the wire communication channel of each first terminal of communicating by letter or each terminal equipment and the characteristic of radio communication channel carrying out transfer of data in the home network, and the detection to wire communication channel and radio communication channel characteristic is carried out simultaneously, if because factor such as environmental change causes wire message way or wireless channel variation taken place bigger, home gateway will be made the decision whether needs switch transmission means and channel according to detected channel variance situation; If determination result is to need to switch transmission means and channel, then notify first terminal or adapter with the decision information of determination result correspondence; Described decision information can comprise: concrete switching time, the channel information of communication and at least one information in the communications mode.
Step 41: described first terminal or terminal equipment receive after the described decision information, determine corresponding communications mode and channel according to the particular content of described decision information;
At first terminal, owing to have wireless and/or wired communication interface that adapts with home network and the switching that can communicate mode and channel on first terminal, therefore first terminal receives after the described decision information, determines the operation of transmission means and channel according to the particular content of described decision information;
At terminal equipment, owing to have wireless and/or wired communication interface that adapts with home network and the switching that can communicate mode and channel on the terminal equipment, therefore terminal equipment receives after the described decision information, determines the operation of transmission means and channel according to the particular content of described decision information;
If have the switching that the wireless and/or wired communication interface that adapts with home network still can not communicate mode and channel on the terminal in the home network, perhaps, do not have the wireless and/or wired communication interface that adapts with home network on the terminal, then terminal is not carried out any operation.
Step 42: first terminal or terminal equipment carry out the transmission of business datum according to communications mode and the channel determined.
Terminal equipment is by carrying out the transmission of data message and business datum between adapter and the home gateway.
An exemplary embodiments of the data transmission method of home network of the present invention is to adopt the embodiment of PLC technology, WiFi technology, terminal equipment and home gateway, this execution mode only comprises the transfer of data flow process of typical terminal equipment, and its method schematic diagram as shown in Figure 5.
Described terminal equipment comprises: can not satisfy second terminal of the networking needs of home network, and with its adapter that is connected in wired or wireless mode.
The adapter that Fig. 5 relates to for the embodiment of the invention and the transfer of data flow process figure of system specifically comprise:
Step 50: home gateway is registered the characteristic of the adapter in the terminal equipment that needs access network, and distributes the network address of one family network internal to terminal equipment.
At described terminal equipment,, second terminal in the terminal equipment and adapter can be arranged to separate or separate equipment in order to use the adapter in the terminal equipment flexibly.If second terminal is can separate or separate equipment with adapter, then second terminal and adapter can arbitrarily split and reconfigure, but when second terminal after splitting and making up or terminal equipment network once more, all be used as second terminal of first networking or the distribution that terminal equipment is set up new registration procedure the registration and the network address.Promptly, if originally the adapter of a terminal equipment is split when afterwards forming new terminal equipment with other second terminal, when then second terminal of former terminal equipment networks once more with the new terminal equipment of having used this adapter, all need to handle according to second terminal and the terminal equipment of first networking respectively; If former terminal equipment has carried out the adapter replacing, also need set up new registration procedure the distribution of the registration and the network address when networking once more according to the terminal equipment of new networking.
Home gateway is only registered the characteristic of the adapter in the terminal equipment, and an address is only distributed when carrying out address assignment in home gateway inside; If second terminal in the terminal equipment sometime after networking has increased as required or has changed adapter, when then described terminal equipment adds network more again, need handle according to the terminal equipment of first networking, promptly home gateway is only registered the characteristic that increases back or adapter after changing.
Step 51: home gateway carries out PLC and WiFi Channel Detection, and the concrete communications mode and the channel of business data transmission are carried out in decision.
If terminal equipment carries out first business data transmission and communicates by letter or the determination result of home gateway is switched communications mode and channel for needing, then the decision information with the determination result correspondence sends to adapter; If do not need decision information is sent to adapter, be terminal equipment be not carry out first business data transmission with communicate by letter or the determination result of home gateway for not needing to switch communications mode and channel, then execution in step 53, carry out the transmission of business datum according to old transmission means and channel between home gateway and the adapter.
When described concrete communications mode and channel change, home gateway will be maked decision according to detected channel variance situation, if determination result is to need to switch transmission means and channel, then with the decision information notice adapter of determination result correspondence; Described decision information can comprise concrete switching time.
Behind family's network organizing, before carrying out first business data transmission, system will carry out the hand-off process of transmission means according to the needs of transmission means, promptly before carrying out business data transmission and communicate by letter for the first time, need to detect earlier the PLC channel and the WiFi characteristic of channel, the communications mode and the channel of business data transmission at first carried out in decision, and notifies adapter with the decision information of this determination result correspondence; Described decision information can comprise the correlation properties of business datum.
Simultaneously, in transfer of data and communication process, home gateway regularly detects the PLC channel that carrying out transfer of data and each terminal equipment of communicating by letter in the home network and the characteristic of WiFi channel, and the detection to the PLC channel and the WiFi characteristic of channel is carried out simultaneously, if because factors such as environmental change cause that bigger variation has taken place for PLC and WiFi channel, home gateway will be made the terminal equipment decision whether needs switch transmission means and channel according to detected channel variance situation, if determination result is to need to switch transmission means and channel, promptly need the PLC Channel Transmission that adopts is at present changed into the WiFi Channel Transmission, the WiFi Channel Transmission that perhaps will adopt is at present changed into the PLC Channel Transmission, then notifies adapter with the decision information of determination result correspondence; Described decision information can comprise concrete switching time.
Home gateway can compare testing result, make the judgement whether needs carry out transmission means and channel switching according to comparative result, if judged result, is then made needs determination result and other decision information notice adapter of switching for need make switching.
Step 52: adapter receives the notice of described switching transmission means and channel, and after the relevant handover information, upgrades the operation of transmission means and channel.That is, before carrying out first business data transmission, adapter is according to the information that receives, the corresponding units of adapter is configured, and activates corresponding data processing unit and interface, the transmission of preparing to carry out business datum with communicate by letter; In transfer of data and communication process, the control unit of adapter switches preparation according to the relevant information that receives, and configuration upgrades in time, activate respective communication interface and data processing unit, and subscribing the switching of carrying out transmission means and interface switching time on the point.
Step 53: when the transmission means of adapter and channel switch finish after, adapter carries out the transmission of business datum according to new transmission means and channel; As not needing to carry out the setting or the switching of transmission means and channel, then carry out the transmission of business datum according to old transmission means and channel between home gateway and the adapter.
The implementation structure figure of an embodiment of the system of the embodiment of the invention as shown in Figure 6, described system carries out the networking of home network, the home network architecture figure based on home gateway and adapter that Fig. 6 relates to for the embodiment of the invention with wired and communication.Specifically comprise:
Home gateway is used for management and controls whole home network, has wired and wireless communication ability, and can carry out wire communication and radio communication;
First terminal and/or terminal equipment are the various device that adapts with home network that connects in the home network; As: first terminal 1, first terminal 4, terminal equipment 1, terminal equipment 2;
Terminal 3, terminal 5 are the equipment that connects in the home network, and described equipment does not have communication mode and the channel that adapts with home network, and/or, do not have the communication mode that adapts with home network and the switching capability of channel;
Described first terminal, terminal equipment and home gateway are linked to each other by various cable communicating technologies and/or wireless communication technology;
In the home network network, can only comprise described first terminal or described terminal equipment; First terminal that also can both comprise some also comprises the terminal equipment of some;
The communication mode that described first terminal support and home network adapt, and switching capability with communication mode;
Described terminal equipment comprises: second terminal, and with its adapter that is connected in wired or wireless mode; Described adapter is as the expansion or the extension device of second terminal of the networking needs that can not satisfy home network, mainly the communication capacity and the communication port of second terminal are expanded, the various interface that is fit to the second terminal needs is provided simultaneously, the transmission of the industry of going forward side by side affair data, thus improve and the limited problem of solution terminal networking; Second terminal that can not satisfy the networking needs of home network optionally cooperates various adapters to use, the i.e. communication interface ability that has according to second terminal, can select the adapter that is used, can select not connection adaptor, also can select to connect the adapter of various difference in functionalitys; Adapter can carry out being connected of multiple mode with second terminal, and promptly adapter can be integrated in second terminal, and second terminal also can be to separate or separate equipment with adapter; The adapter and second terminal can adopt the wired connection mode, also can adopt the wireless connections mode.
By cable communicating technology and/or wireless communication technology, various types of first terminals or the terminal equipment of home gateway control household internal carry out wired and/or radio communication; Home gateway links to each other with external network, can have various dissimilar external networks, wherein mainly includes but not limited to the external network that family network service provider is provided.
Described cable communicating technology comprises various cable communicating technologies, include but not limited to described cable communicating technology based on transmission mediums such as 5 class lines, coaxial cable, telephone wire, cable of cable TV and power lines, wherein, typical application is the cable communicating technology based on the PLC transmission medium.
Described wireless communication technology is mainly the low coverage wireless communication technology, comprise various low coverage wireless communication technologys, mainly include but not limited to the wireless communication technology stipulated among IEEE802.11x, the IEEE802.15x, wherein, typical application is the WiFi technology based on IEEE802.11x.
In the exemplary embodiments of system of the present invention, cable communicating technology adopts the PLC technology, and wireless communication technology adopts the WiFi technology, and its system construction drawing as shown in Figure 7.
Figure 7 shows that the home network schematic diagram that the embodiment of the invention relates to based on PLC and the networking of WiFi technology, similar with Fig. 6, also mainly comprise unit such as home gateway, first terminal, terminal equipment.Wherein,
Terminal equipment comprises second terminal of the networking needs that can not satisfy home network, with and go up the adapter that connects in wireless or wired mode;
Home gateway is the management of the home network that adopts PLC technology and WiFi technology simultaneously and the equipment of control;
If have the PLC interface that can communicate by the PLC technology on the terminal, described terminal can directly network by PLC, such as terminal 3;
If there is not on the terminal PLC interface on described PLC interface or the described terminal not meet the networking requirement of home network, need be on described terminal connection adaptor, terminal with its on the adapter that is connected in wireless or wired mode form terminal equipment, this moment, described terminal was second terminal; Described adapter provides the interface between home network and the terminal, that is, described adapter has PLC interface that can link to each other with home network and the interface that can link to each other with terminal simultaneously, and can be between terminal equipment and home network Data transmission.
Same, if having the interface that can carry out the WiFi radio communication on the terminal, described terminal can directly network by WiFi, such as terminal 5;
When if the networking that does not have on the terminal WiFi interface on described WiFi interface or the described terminal not meet home network requires, need be on described terminal connection adaptor, terminal with its on the adapter that is connected in wireless or wired mode form terminal equipment, this moment, described terminal was second terminal; Described adapter provides the interface between home network and the terminal, that is, described adapter has WiFi interface that can link to each other with home network and the interface that can link to each other with terminal simultaneously, and can be between terminal equipment and home network Data transmission.
Simultaneously,, can select flexibly to network or network, can have the situation of interface, select the adapter that is connected with terminal flexibly according to second terminal in the terminal equipment by WiFi by PLC for the ease of terminal equipment at terminal equipment.Promptly, simultaneously can be if second terminal has had the PLC interface that can network further by adapter expansion WiFi interface, then select network interface unit to have the adapter of WiFi interface, the network interface of going into of second terminal is expanded to simultaneously and has PLC and WiFi interface; Simultaneously can further pass through adapter expansion technique of PLC interface if second terminal has had the WiFi interface that can network, then select network interface unit to have the adapter of PLC interface, the network interface of going into of second terminal is expanded to simultaneously and has PLC and WiFi interface; If second terminal does not have the interface that can network, then select network interface unit to have the adapter of PLC interface and/or WiFi interface.
Respectively the concrete structure of described home gateway and described adapter is described in detail below in conjunction with Fig. 8.Fig. 8 realizes schematic diagram for the embodiment that system of the present invention relates to.
Home gateway comprises as the management and the control appliance of home network:
Register the unit, be used for first terminal of application adding home network or the fundamental characteristics of terminal equipment being registered by characteristic description primitive.Promptly, if first terminal or the first access network of terminal equipment, home gateway all will be registered the fundamental characteristics of first terminal or terminal equipment by characteristic description primitive first terminal or the terminal equipment of application access home network, comprising information such as communication mode that first terminal or terminal equipment possessed and abilities, the network address of the expert front yard network internal of going forward side by side is distributed.
Particularly, at first terminal that application networks, home gateway is registered the characteristic of this first terminal, and distributes the network address of one family network internal.At the terminal equipment that application networks, home gateway is then registered accordingly to the adapter in the described terminal equipment, and distributes the network address of one family network internal, but the characteristic of the terminal equipment of registration this moment is based on adapter; And, when terminal equipment increases as required, cancels after networking or changed adapter, then when second terminal or terminal equipment are applied for networking once more, all need re-register registration according to new second terminal of first networking or the registration process of terminal equipment, home gateway upgrades respective record simultaneously, and distributes the network address of a new home network inside to it.Carry out the branch timing of the network address in family's network internal, only distribute a network address for each first terminal or terminal equipment.
Characteristic of channel decision unit is used to determine that home network first terminal or terminal equipment carry out the communications mode and the channel of business data transmission; Be specifically as follows: regularly detect with the wire communication channel of each first terminal of communicating by letter or each terminal equipment and the characteristic of radio communication channel carrying out transfer of data in the home network, and the detection of wire communication channel and radio communication channel characteristic is carried out simultaneously.
Judging unit is used to judge whether the characteristic of channel to be determined that the decision information of the determination result correspondence of unit decision sends to first terminal or terminal equipment.
Transmitting element is used for described decision information is sent to described first terminal or terminal equipment as a result; That is, if the judged result of judging unit is for need send to decision information first terminal or terminal equipment, then transmitting element sends to described first terminal or terminal equipment with decision information as a result.
Described characteristic of channel decision unit can comprise:
Characteristic of channel monitoring means is used for each channel variance situation is monitored;
The monitoring result comparing unit is used for the characteristic of channel result that more described characteristic of channel monitoring means monitors, thereby first terminal or terminal equipment carry out the communications mode and the channel of business data transmission in the decision home network.
Service efficiency for the network address of improving home network inside, home gateway will be regularly to clearing up and upgrade in the network address of registering and distributed, delete for first terminal of all not carrying out communication in the certain hour or the network address and the relevant information of terminal equipment, the network address resources that discharges is utilized again and distributed.If the network address and the relevant information of one first terminal or terminal equipment are deleted by home gateway, then when it will communicate, need register distribution again with the network address.That is, described home gateway device also comprises:
Cleaning unit, address is used for the log-on message of periodic cleaning through registering the unit registration but not using in the certain hour.
Adapter in the terminal equipment is as the expansion or the extension device of second terminal, mainly the communication capacity and the communication port of second terminal of the networking needs that can not satisfy home network are expanded, the interface of the second terminal needs of the networking needs that are fit to satisfy home network is provided simultaneously, thereby improves and solve the terminal limited problem that networks.The functional structure of adapter is formed schematic diagram as shown in Figure 9, comprises network interface unit, terminal interface unit, control unit and data processing unit, wherein,
Network interface unit is used to provide the suitable interface that links to each other with home network, is PLC and/or WiFi interface in this specific embodiment, wherein as required, perhaps has only the PLC interface, perhaps has only the WiFi interface, perhaps has PLC interface and WiFi interface simultaneously; When having the PLC interface, second terminal that links to each other with described adapter can communicate with PLC mode and network; When having the WiFi interface, second terminal that links to each other with described adapter can communicate with WiFi mode and network; When having two kinds of interfaces simultaneously, second terminal that links to each other with described adapter can be selectively communicates with WiFi mode or PLC mode and network;
Be understandable that, because the variation of network environment, for example the wireless communication technology of concrete employing and cable communicating technology is different, the quantity of the interface that described network interface unit provides and type also can change, promptly take the interface quantity and the type that adapt with the network environment that has changed, and be not limited only to PLC interface and WiFi interface;
Terminal interface unit, be used to provide the suitable interface that links to each other with second terminal of the networking needs that can not satisfy home network, the terminal needs of the networking needs that are fit to satisfy home network and the interface of requirement promptly are provided, in this specific embodiment, include but not limited to A/V input/output interface (audio/video input/output interface) and/or control and service interface and/or Ethernet interface and/or WlFi interface and/or PLC interface and/or USB interface; The interface that terminal interface unit provides is the various dissimilar interface decision that has of second terminal of the networking needs that can not satisfy home network that connect according to the adapter needs;
Control unit is used for the control information according to the decision information of data processing unit transmission, generates control command, and described control command is sent to data processing unit;
Data processing unit be used for receiving the decision information that home gateway sends by network interface unit, and the control information in the decision information that control unit is required sends to control unit; And, be used for control command according to the control unit transmission, be configured renewal, activate corresponding network interface unit and terminal interface unit, finish the conversion of the data format between network interface unit and the terminal interface unit and the transmission of data traffic information.
Described decision information is that first terminal or terminal equipment carry out the communications mode of business data transmission and the information of channel in the home network of home gateway decision.
Described adapter and terminal have an interface at least, and the required different communication of interface type and quantity and different terminals requires to adapt; Adapter and network have an interface at least, and the different communication that interface type and quantity and heterogeneous networks provide requires to adapt.
Below the interface that provides of the terminal interface unit that relates to the embodiment of the invention shown in Figure 10 be the functional structure of the adapter of A/V interface to form schematic diagram be example, describe the operation principle and the process of adapter in detail:
At first, be that the adapter of A/V interface correctly is connected compositing terminal equipment with second terminal with terminal interface;
Secondly, when terminal equipment inserted home network, home gateway can be registered this adapter by characteristic description primitive, and correspondingly distributes the network address of one family network internal;
Afterwards, the data processing unit of adapter sends to control unit with the control information in the decision information of control unit needs after the decision information that receives the home gateway transmission; Control unit generates control command according to the control information that receives, and described control command is sent to data processing unit; Afterwards, data processing unit is used for the control command according to the control unit transmission, dispose described adapter, activate corresponding A/V interface, PLC interface and WiFi interface, and finish the conversion of the data format between described two interface units and the transmission of data traffic information.Described data processing mainly include, but is not limited at the business datum of respective communication mode and transmission carry out that corresponding data compression/decompression contracts, packing data/unpack, frame form/separate processing such as frame, digital coding/decoding, modulating/demodulating.
Home network networking requirement when the related technical scheme of the embodiment of the invention is equally applicable to adopt the cable communicating technology of transmission mediums such as 5 class lines, coaxial cable, telephone wire, cable of cable TV and power line and adopts the wireless communication technology of defineds such as IEEE802.11x, IEEE802.15x.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claims.
Claims (12)
1. the data transmission method of a home network is characterized in that, described method comprises:
First terminal or terminal equipment carry out the communications mode and the channel of business data transmission in A, the home gateway decision home network; Comprise: home gateway is monitored each channel variance situation, and more detected channel variance situation, make the decision whether first terminal or terminal equipment need to switch communications mode and channel, if the determination result of home gateway is switched communications mode and channel for needing, then described home gateway sends to described first terminal or terminal equipment with the decision information of described determination result correspondence; The decision information of described determination result correspondence comprises the channel information of concrete switching time, communication, at least one in the communications mode;
B, described first terminal or terminal equipment receive after the described decision information, determine corresponding communications mode and channel according to described decision information;
C, described first terminal or terminal equipment carry out the transmission of business datum according to communications mode and the channel determined.
2. the method for claim 1 is characterized in that, also comprises before carrying out described steps A:
D, home gateway are registered the characteristic of described first terminal or the characteristic of terminal equipment, and wherein, described characteristic comprises: communications mode that described first terminal or terminal equipment have and the communications ability under described communications mode.
3. method as claimed in claim 1 or 2 is characterized in that,
Described first terminal has communication mode and the channel that adapts with home network, and the switching capability of communication mode and channel;
Described terminal equipment comprises second terminal, and independently links to each other or integrated continuous adapter with described second terminal; Described second terminal does not have communication mode and the channel that adapts with home network, and/or the switching capability of communication mode and channel; The concrete connected mode of described adapter and described second terminal is wired or wireless connected mode; Second terminal in the terminal equipment is carried out the transmission of business datum and other relevant informations by adapter.
4. method as claimed in claim 1 or 2 is characterized in that, described steps A also comprises:
Home gateway carries out the communications mode and the channel of business data transmission for carrying out business data transmission and first terminal of communicating by letter or terminal equipment decision for the first time, and the decision information of determination result correspondence is sent to described first terminal or terminal equipment; Described decision information comprises: the channel information of communication and/or communications mode.
5. method as claimed in claim 4 is characterized in that, described home gateway determines the communications mode and the channel that carry out business data transmission specifically to comprise for carrying out business data transmission for the first time with first terminal of communicating by letter or terminal equipment:
Described home gateway detects the wireless and wire communication channel that first terminal or terminal equipment need communicate, and testing result compared, determine described first terminal or terminal equipment to carry out the communications mode and the channel of business data transmission according to comparative result.
6. the method for claim 1 is characterized in that, described communications mode comprises wired communications mode and wireless communication transmissions mode.
7. a home gateway is characterized in that, comprising:
Characteristic of channel decision unit is used for determining that home network first terminal or terminal equipment carry out the communications mode and the channel of business data transmission;
Judging unit is used to judge whether the characteristic of channel to be determined that the decision information of the determination result correspondence of unit decision sends to first terminal or terminal equipment; The decision information of described determination result correspondence comprises the channel information of concrete switching time, communication, at least one in the communications mode;
Transmitting element is used for the decision information of determination result correspondence to be sent under first terminal or the terminal equipment situation in described judgment unit judges as a result, and described decision information is sent to described first terminal or terminal equipment.
8. home gateway as claimed in claim 7 is characterized in that, described home gateway also comprises:
Register the unit, be used for first terminal of application adding home network or the characteristic of terminal equipment are registered.
9. as claim 7 or 8 described home gateways, it is characterized in that described characteristic of channel decision unit comprises:
Characteristic of channel monitoring means is used for each channel variance situation is monitored;
The monitoring result comparing unit is used for the characteristic of channel result that more described characteristic of channel monitoring means monitors, thereby first terminal or terminal equipment carry out the communications mode and the channel of business data transmission in the decision home network.
10. an adapter that is used for home network is characterized in that, comprises network interface unit, terminal interface unit, control unit and data processing unit, wherein,
Network interface unit is used to provide the interface that links to each other with home network;
Terminal interface unit is used to provide the interface that links to each other with second terminal;
Control unit is used for the control information according to the decision information of data processing unit transmission, generates control command, and described control command is sent to data processing unit;
Data processing unit be used for receiving the decision information that home gateway sends by network interface unit, and the control information in the decision information that control unit is required sends to control unit; And, be used for control command according to the control unit transmission, be configured renewal, activate corresponding network interface unit and terminal interface unit, finish the conversion of the data format between network interface unit and the terminal interface unit and the transmission of data traffic information;
Described decision information is that first terminal or terminal equipment carry out the communications mode of business data transmission and the information of channel in the home network of home gateway decision.
11. adapter as claimed in claim 10 is characterized in that, the described interface that links to each other with home network comprises: at least one wired communication interface and/or at least one wireless communication interface.
12. the system of a home network networking is characterized in that, described system carries out the networking of home network with wired and communication, comprising:
At least one home gateway, described home gateway are used for management and control whole home network, have wired and wireless communication ability, and can carry out wire communication and radio communication;
First terminal or terminal equipment carry out the communications mode and the channel of business data transmission in the described home gateway decision home network; If the determination result of home gateway is switched communications mode and channel for needing, then home gateway sends to described first terminal or terminal equipment with the decision information of described determination result correspondence; The decision information of described determination result correspondence comprises the channel information of concrete switching time, communication, at least one in the communications mode;
At least one first terminal and/or at least one terminal equipment;
Described first terminal or terminal equipment receive after the described decision information, determine the corresponding communications mode and the operation of channel according to described decision information; Described first terminal or terminal equipment carry out the transmission of business datum according to communications mode and the channel determined;
The communication mode that described first terminal support and home network adapt, and switching capability with communication mode;
Described terminal equipment comprises adapter, and independently links to each other or the integrated second continuous terminal with adapter; The concrete connected mode of described adapter and described second terminal is wired or wireless connected mode; Described second terminal is carried out the transmission of business datum and other relevant informations by adapter;
Described adapter is used to expand the communication capacity of described second terminal.
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| CN104683248B (en) * | 2015-02-14 | 2018-03-06 | 小米科技有限责任公司 | The method and apparatus of switching working mode |
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