CN105450262B - A kind of terminal with Homeplug function and its method for connecting network and system - Google Patents
A kind of terminal with Homeplug function and its method for connecting network and system Download PDFInfo
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- CN105450262B CN105450262B CN201510797325.1A CN201510797325A CN105450262B CN 105450262 B CN105450262 B CN 105450262B CN 201510797325 A CN201510797325 A CN 201510797325A CN 105450262 B CN105450262 B CN 105450262B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
- H04B3/56—Circuits for coupling, blocking, or by-passing of signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
- H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
- H04M11/066—Telephone sets adapted for data transmision
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- Computer Networks & Wireless Communication (AREA)
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Abstract
The invention discloses a kind of terminal with Homeplug function and its method for connecting network and systems, the system passes through setting Homeplug network receiving module, the network data carrier wave that terminal is loaded from AC network, and by network data wave conversion at network signal；Network switching switch is controlled by processing module, can select cable network or Homeplug network receiving module as the network inputs source of the terminal according to the needs of users；The selection of multiple network connection type is realized, even if could be used that terminal is surfed the Internet in the room of not wired network port, without additional wiring, solves the problems, such as that the network port is insufficient in family.And, it is no select Homeplug network receiving module as network inputs source when, processing module resets Homeplug network receiving module, it is set to disconnect the network connection with processing module, and external power cat network launches module resets are made by Homeplug network receiving module, save the time of network switching.
Description
Technical field
The present invention relates to network communication field, in particular to a kind of terminal and its method for connecting network with Homeplug function
And system.
Background technique
In recent years, with the rapid development of network, the life of modern, electronic product are affected in all its bearings
Such as：The mobile terminal devices such as mobile phone, computer, TV, PAD are even more to be unable to do without network, therefore network has entered every household.Intelligence
The rapid development of TV, network function are quickly become the basic function of TV, at present the common internetwork connection mode of TV whether there is or not
Line WIFI connects two kinds with cable network.
Smart television, which is commonly connected to the network, at present all has certain drawback, although wireless connection is easy to connect, beautiful,
It is that certain room signal strengths are very poor in family, does not have wireless network signal at all what is more, so that not being connected to the network, influences
Watch the quality of network video.Reason is that the certain walls of family are that load-bearing is strong, is all substantially reinforced concrete, causes to wireless communication
Number shielding；Just general entity brick wall at last, signal can also decay more than half after two, three wall walls.It is another normal
The connection of internetwork connection mode, that is, cable network, this connection type can solve the signal of wireless connection by shielding and through walls
Afterwards the problems such as signal weaker, but condition is that have cable to have network just now with being arranged into, for no progress cable network layout
It must additionally draw in the net line for house, it is beautiful to influence house to a certain extent.
Therefore, existing technology could be improved and improve.
Summary of the invention
Place in view of above-mentioned deficiencies of the prior art, the purpose of the present invention is to provide a kind of terminals with Homeplug function
And its method for connecting network and system, there is network signal as long as the place for having AC Power supply socket, solves network in family
The problem of port deficiency.
In order to achieve the above object, this invention takes following technical schemes：
A kind of network connection system of the terminal with Homeplug function, the network connection system include：
First port RJ45, for connecting external wire-line networks；
Homeplug network receiving module, for separating the network data carrier wave loaded on AC network, and by the network
Data carrier is converted into network signal；
Network switching switch, for selected in the first port RJ45 and Homeplug network receiving module one as described in
The network inputs source of terminal；
Processing module is selecting Homeplug network receiving module to come as network inputs for controlling network switching switch
When source, it is connected to the network Homeplug network receiving module with processing module；In no selection Homeplug network receiving module
When as network inputs source, Homeplug network receiving module is resetted, so that it is disconnected the network connection with processing module, and lead to
Crossing Homeplug network receiving module makes external power cat network launches module resets.
In the network connection system of the terminal with Homeplug function, the Homeplug network receiving module includes：
Voltage conversion unit, for AC carrier to be converted into low pressure carrier wave；
Signal acquisition unit, for acquiring the network signal in the low pressure carrier wave；
Signal conversion unit, the network signal for acquiring signal acquisition unit are converted into what processing module can identify
Network signal.
In the network connection system of the terminal with Homeplug function, the network connection system further includes WIFI mould
Block, the WIFI module is for connecting external wireless network.
In the network connection system of the terminal with Homeplug function, the Homeplug network launches module is used for will
The network signal that router or interchanger provide is loaded into AC network.
In the network connection system of the terminal with Homeplug function, the network connection system further includes power supply mould
Block, the power module supply electricity to terminal confession for the alternating current in Homeplug network receiving module to be depressured to and is converted to direct current
Electricity.
In the network connection system of the terminal with Homeplug function, the Homeplug network receiving module further includes
Isolated location, the isolated location are used for the clutter that isolated power supply module feedback comes；The Homeplug network receiving module is logical
Cross isolated location connection power module.
In the network connection system of the terminal with Homeplug function, the processing module includes TV SOC chip.
A kind of method for connecting network of the network connection system based on the terminal with Homeplug function, including walk as follows
Suddenly：
A, processing module selects a work in external wire-line networks, external power cat network launches module and WIFI module
For the network inputs source of terminal；
B, when selecting Homeplug network receiving module as network inputs source, processing module receives Homeplug network
Module is connected to the network with terminal；It is no select Homeplug network receiving module as network inputs source when, handle mould
Block resets Homeplug network receiving module, so that it is disconnected the network connection with terminal, and pass through Homeplug network receiving module
Make external power cat network launches module resets.
A kind of terminal with Homeplug function, the terminal include the network of the terminal as described above with Homeplug function
Connection system.
Compared to the prior art, the terminal provided by the invention with Homeplug function and its method for connecting network and system
In, the network connection system adds terminal from AC network by one Homeplug network receiving module of setting
The network data carrier wave of load, and by network data wave conversion at network signal；Network switching switch is controlled by processing module,
Cable network or Homeplug network receiving module can be selected as the network inputs source of the terminal according to the needs of users；It is real
Show the selection of multiple network connection type, even if could be used that terminal is surfed the Internet in the room of not wired network port, nothing
It need to additionally be routed, it is convenient and practical, solve the problems, such as that the network port is insufficient in family.Moreover, in no selection Homeplug network
When receiving module is as network inputs source, processing module resets Homeplug network receiving module, disconnects it and processing mould
The network connection of block, and external power cat network launches module resets are made by Homeplug network receiving module, save network
The time of switching.
Detailed description of the invention
Fig. 1 is the structural block diagram of the network connection system of the terminal provided by the invention with Homeplug function；
Fig. 2 is in the network connection system of the terminal provided by the invention with Homeplug function, and Homeplug network receives mould
The circuit diagram of block；
Fig. 3 is the method flow diagram of the method for connecting network of the terminal provided by the invention with Homeplug function.
Specific embodiment
The present invention provides a kind of terminal with Homeplug function and its method for connecting network and system.To make mesh of the invention
, technical solution and effect it is clearer, clear, the present invention is described in more detail as follows in conjunction with drawings and embodiments.
It should be appreciated that described herein, specific examples are only used to explain the present invention, is not intended to limit the present invention.
Referring to Fig. 1, the present invention provides a kind of network connection system of terminal with Homeplug function, the network connection
System includes the first port RJ45 40, Homeplug network receiving module 80, network switching switch 30 and processing module 20.The end
End includes the equipment that can connect network, such as smart television, computer, and in the present embodiment, the terminal is smart television.
The wired connection of the network of smart television is realized for connecting external wire-line networks in first port RJ45 40.
The Homeplug network receiving module 80, for separating the network data carrier wave loaded on AC network, and by institute
Network data wave conversion is stated into network signal.
The network switching switch 30, for selecting one in the first port RJ45 40 and Homeplug network receiving module 80
A network inputs source as the terminal；It is used to realize the compatible of other networks such as Homeplug network and telecommunications.
The processing module 20, for controlling network switching switch 30, select Homeplug network receiving module 80 as
When network inputs source, it is connected to the network Homeplug network receiving module 80 with processing module 20；In no selection electric power
When cat network receiving module 80 is as network inputs source, Homeplug network receiving module 80 is resetted, it is made to disconnect and handle
The network connection of module 20, and external power cat network launches module 70 is resetted by Homeplug network receiving module 80.
First port RJ45 40 and Homeplug network receiving module 80 are handled by 30 connection of network switching switch
Module.
It follows that the network connection system of the terminal provided by the invention with Homeplug function, it can be according to the need of user
Select cable network or Homeplug network receiving module as the network inputs source of the terminal；Realize multiple network company
The selection of mode is connect, even if can also surf the Internet by AC outlet in the room of not wired network port, is not necessarily to additional cloth
Line, it is convenient and practical, solve the problems, such as that the network port is insufficient in family.
Further, the wire length between the Homeplug network launches module 70 and Homeplug network receiving module 80
No more than 500m, to ensure Homeplug network launches module 70 in -60dB decaying, network speed is remained to up to 90MBps.
Please continue to refer to Fig. 1, the network connection system further includes WIFI module 10, and the WIFI module 10 is for connecting
External wireless network realizes the wireless connection of the network of smart television.The WIFI module 10 also serves as WIFI hot spot simultaneously,
Local network launches outward, and smart television is made to provide network originating as the other network equipments of network launches terminal.
The processing module 20 is also used to according to the user's choice, select WIFI module 10, the first port RJ45 40 and institute
State one in the Homeplug network receiving module 80 network inputs source as terminal.The processing module includes TV SOC core
Piece.
It is connected between the processing module 20 and WIFI module 10 using USB interface；First port RJ45 40 and Homeplug
Network signal between network receiving module 80 and network switching switch 30 uses serial line interface（TX/RX）Communication transfer is carried out,
Likewise, the network signal between network switching switch 30 and processing module 20 uses serial line interface（TX/RX）Carry out communication biography
It is defeated.The processing module 20 passes through GPIO（Universal input/output）Control network switching switch 30, processing module 20 also by
GPIO（Universal input/output）Reset instruction is transmitted to Homeplug network receiving module 80 and Homeplug network launches module 70,
Reset the two.
Specifically, when GPIO1 is H（High level）When, TV SOC selects the network of the output of Homeplug network receiving module 80
Signal Tx/Rx_1；GPIO2 exports H simultaneously（High level）, allow Homeplug network receiving module 80 with carrying out network between TV SOC
Connection.Conversely, when GPIO1 is L（Low level）When, the cable network signal Tx/ of the first port RJ45 40 of TV SOC selection connection
The wireless network signal of Rx_2 either WIFI module 10.GPIO2 output at this time is L（Low level）, Homeplug network is notified to connect
It receives module 80 to reset, disconnects the network connection with TV SOC.Homeplug network receiving module 80 is connected to the reset of TV SOC sending
After instruction, order is transmitted to power grid by Homeplug network launches module 70 in the form of network packet, sends out power cat network
It penetrates module 70 and synchronizes and resetted, disconnect the network connection with TV SOC, first can be connected to along speed to reach TV SOC
The purpose of the cable network of the port RJ45 40 or the wireless network connected by WIFI module 10.
The network connection system of terminal provided by the invention with Homeplug function, it is external to remove Homeplug network launches mould
Outside block 70, it is additionally provided with gateway 50 and the 2nd port RJ45 60.
The gateway 50, for providing Internet signal, including router or interchanger.
The network signal input terminal of the Homeplug network launches module 70 passes through the 2nd port RJ45 60 and gateway
Equipment 50 connects, and the AC input of the Homeplug network launches module 70 connects AC network AC.The AC network
AC provides 220V alternating current.The Homeplug network launches module 70 is for adding the network signal that router or interchanger provide
It is downloaded in AC network；So that network is throughout at each power interface of family, the interface as long as smart television is connected with the mains both may be used
It is realized and is connected to the network by power grid, reached viewing network audio-video purpose, be not necessarily to rewiring.Preferably, the Homeplug net
Network transmitting module 70 includes 88LX3142 chip.
The network connection system further includes power module（It is not shown in the figure）, the power module is used for Homeplug net
Alternating current in network receiving module 80, which is depressured and is converted to direct current, supplies electricity to terminal power supply.The Homeplug network receiving module 80 is logical
Crossing power module connection processing module 20 in other words can insert the power supply of Homeplug network receiving module 80 and smart television
Head accomplish together, make smart television only use a power outlet can be realized take electricity and network connection, save power interface
Resource, it is very convenient.
Referring to Fig. 2, the Homeplug network receiving module 80 includes voltage conversion unit 810, signal acquisition unit
820, signal conversion unit 830 and connection stand 840.
The voltage conversion unit 810, for AC carrier to be converted into low pressure carrier wave.The low pressure carrier wave is that signal is adopted
The carrier wave that collection unit 820 can acquire.The voltage conversion unit 810 includes UT1138S2 chip.
The signal acquisition unit 820, for acquiring the network signal in the low pressure carrier wave；The signal acquisition unit
820 include 88LX2718 chip.
The signal conversion unit 830, the network signal for acquiring signal acquisition unit 820 are converted into processing module
20 network signals that can be identified.The signal conversion unit 830 includes 88LX3142 chip, flash memory（Flash Memory）With
Random access memory（DDR）.
The connection stand 840 is CNOS3 connection stand, for connecting with network switching switch 30.
AC network AC after Homeplug network launches module 70 becomes low pressure by voltage conversion unit 810 and carries
Wave is exported after the acquisition of signal acquisition unit 820, signal conversion unit 830 are converted into network signal by connection stand 840
To network switching switch 30, realize that the network signal of Homeplug receives.
The Homeplug network receiving module 80 further includes isolated location（It is not shown in the figure）, the isolated location be used for every
The clutter to come is fed back from power module；The Homeplug network receiving module 80 connects power module by isolated location.It is excellent
Choosing, the isolated location is isolation inductance, reduces network transfer speeds to avoid clutter.
The network switching switch 30 is preferably LAN switch（LAN SWITCH）, specifically include AZAW4210P core
Piece.The smart television only needs software to increase network switching option, 30 basis of network switching switch in network settings menu
GPIO1 makes processing module 20 receive network signal Tx/Rx_1 or common network signal Tx/ that signal conversion unit 830 exports
Rx_2, after processing module 20 decodes, the network audio-video for meeting user is played.
In conclusion the network connection system of the terminal with Homeplug function provided through the invention, user only need
Homeplug network launches module 70 is inserted into the input terminal of home communication power grid, while the network insertion registered one's residence to Homeplug
In network launches module 70, thereby realizes network signal and be loaded into AC network.When the terminal with Homeplug function（Intelligence
It can TV）After being linked into power grid, network just passes through the Homeplug network receiving module 80 in smart television and isolates network letter
Number, it is then passed to the network function that TV SOC is achieved that smart television；If only needed using external telecommunications or other networks
Cable network is selected to can be realized in custom menu.
The present invention has following benefit in network application as a result,：
A, application of the network on smart television, what user pursued first is that network speed is fast, to reach the high voiceless sound of smooth playing
The demand of video or 4K audio-video.Therefore it is difficult to meet network speed in many circumstances by WIFI mode using ordinary router and want
It asks, while wireless WIFI transmission performance when there is obstacle is poor, network speed cannot ensure.100M fiber entering household is such as used, then is in
The network signal speed of actual transmissions will not as long as having in family has network at attaching plug up to 90MBps on the power grid in front yard
There is the case where network speed is substantially decayed with certain places without network, while TV WIFI module can be used as WIFI hot spot, is other
The network signal source of electronic product offer high quality.
It b, can be net as long as increasing Homeplug transmitting module in the AC network registered one's residence for some outmoded buildings
Network signal loading is into the power grid of user；As long as the network of TV can be realized using the Web TV with Homeplug function by user
Function does not need additionally to fit up arrangement cable or uses wireless router.
C, with the continuous speed-raising of network speed, video resolution is also being continuously improved on network, and Skyworth is with Homeplug function
TV network receives ability close to 100,000,000, and the video of subsequent 4K resolution ratio can be also compatible with；As multiple users use same electricity
Network flow in net then only needs replacing Homeplug transmitting module, easily realizes the network speed upgrading in domestic electric network.
The present invention has the breakthrough of the following aspects in technical aspect：
A, the smart television with Homeplug function（Or Web TV）By increasing network switching switch, TV SOC passes through
GPIO1 state H or L control network switching switch, and when GPI01 is high level, TV connects Homeplug network；When GPI01 is
When low level, TV connects the telecommunications and other networks of the first port RJ45.It is realized by the above measure with currently used electricity
Communication network is compatible, meets the needs of different users.
B, TV SOC controls Homeplug network receiving module by GPIO2, while cooperating the state of GPIO1 to realize electricity
Power cat network receiving module being connected and disconnected from TV SOC.When GPI01 is H, GPIO2 also exports H, and Homeplug network receives
Module is established with TV SOC and is connected to the network.When GPIO1 is L, the net of the first port RJ45 of TV SOC connection or WIFI module
Network.Although network switching switchs the network for having been switched to the first port RJ45 or WIFI module, system display network connection
OK, IP address are also got, but TV SOC is practical to cannot get online.
By the analysis to Fig. 1 system, the reason of TV SOC cannot get online, is：Network switching switchs the → the one port RJ45
→ gateway → the 2nd port RJ45 → 220V AC network → Homeplug network launches module → Homeplug network receives mould
Block still gets IP address from Homeplug network receiving module by the above access, but actually can not enter net.Therefore work as
GPIO2 is also required to output L when GPIO1 is L, it is desirable that and Homeplug network receiving module resets, and disconnects the network connection with TV SOC,
Allow TV SOC from gateway（Router or interchanger）Obtain IP address.
C, when GPIO1 is L, it is that L allows Homeplug network receiving module to reset by GPIO2, disconnects the company with TV SOC
It connects, but the speed for being physically connected to router or interchanger is fairly slow, needs about 2 minutes, influence user's use.Therefore increase and set
For meter when GPIO1 is L, GPIO2 exports L, not only allows Homeplug network receiving module to reset, while Homeplug network receiving module
Need to send network packet notice Homeplug network launches module resets, such Homeplug network launches module would not occur
The process of network connection and waiting is repeated with Homeplug network receiving module.Improve network connection speed to the maximum extent,
As long as TV SOC is made to be increased to 20 by the connection speed that network switching switch is connected to the first port RJ45 or WIFI module
Second or so.
The network connection system of the terminal with Homeplug function provided based on the above embodiment, the present invention also provides one kind
The method for connecting network of terminal with Homeplug function, this method use the network connection system of the above-mentioned terminal with Homeplug function
System.Referring to Fig. 3, the method for connecting network includes the following steps：
S10, processing module select one in external wire-line networks, external power cat network launches module and WIFI module
Network inputs source as terminal；
S20, when selecting Homeplug network receiving module as network inputs source, processing module connects Homeplug network
Module is received to be connected to the network with terminal；It is no select Homeplug network receiving module as network inputs source when, processing
Module resets Homeplug network receiving module, so that it is disconnected the network connection with terminal, and receive mould by Homeplug network
Block makes external power cat network launches module resets.
Since the principle of the method for connecting network of the terminal with Homeplug function has been explained in detail in the above-described embodiments
It states, details are not described herein.
The network connection system of the terminal with Homeplug function provided based on the above embodiment, the present invention also provides one kind
Terminal with Homeplug function, the terminal include the network connection system of the terminal as described above with Homeplug function.Institute
Stating terminal can be the equipment that smart television, Web TV, computer, server etc. can connect network.Due to the terminal
Principle has elaborated in the above-described embodiments, and details are not described herein.
It, can according to the technique and scheme of the present invention and its hair it is understood that for those of ordinary skills
Bright design is subject to equivalent substitution or change, and all these changes or replacement all should belong to the guarantor of appended claims of the invention
Protect range.
Claims (7)
1. a kind of network connection system of the terminal with Homeplug function, which is characterized in that the network connection system includes：
First port RJ45, for connecting external wire-line networks；
Homeplug network receiving module, for separating the network data carrier wave loaded on AC network, and by the network data
Wave conversion is at network signal；
Network switching switch, for selected in the first port RJ45 and Homeplug network receiving module one as the terminal
Network inputs source；
Processing module, for controlling network switching switch, when selecting Homeplug network receiving module as network inputs source,
It is connected to the network Homeplug network receiving module with processing module；Select Homeplug network receiving module as net no
When network inputs source, Homeplug network receiving module is resetted, so that it is disconnected the network connection with processing module, and pass through electric power
Cat network receiving module makes external power cat network launches module resets；
The processing module controls network switching switch by GPIO, and processing module is also by GPIO transmission reset instruction to electric power
Cat network receiving module and Homeplug network launches module reset the two；
The network connection system further includes WIFI module, and the WIFI module is for connecting external wireless network；
The processing module includes TV SOC chip；
When GPIO1 exports low level, TV SOC selects cable network signal Tx/Rx_2 or the WIFI mould of the first port RJ45
The wireless network signal of block, while GPIO2 output is low level, to notify Homeplug network receiving module to reset, and is disconnected same
The network connection of TV SOC；After Homeplug network receiving module is connected to the reset instruction of TV SOC sending, by power grid order
It is transmitted to Homeplug network launches module in the form of network packet, resets power cat network launches module synchronization, disconnects
With the network connection of TV SOC, so that TV SOC is along the fast cable network for being connected to the first port RJ45 or passes through WIFI mould
The wireless network of block connection.
2. the network connection system of the terminal according to claim 1 with Homeplug function, which is characterized in that the electric power
Cat network receiving module includes：
Voltage conversion unit, for AC carrier to be converted into low pressure carrier wave；
Signal acquisition unit, for acquiring the network signal in the low pressure carrier wave；
Signal conversion unit, the network signal for acquiring signal acquisition unit are converted into the network that processing module can identify
Signal.
3. the network connection system of the terminal according to claim 1 with Homeplug function, which is characterized in that the electric power
Cat network launches module is for the network signal that router or interchanger provide to be loaded into AC network.
4. the network connection system of the terminal according to claim 2 with Homeplug function, which is characterized in that the network
Connection system further includes power module, and the power module is for the alternating current in Homeplug network receiving module to be depressured and turn
It is changed to direct current and supplies electricity to terminal power supply.
5. the network connection system of the terminal according to claim 4 with Homeplug function, which is characterized in that the electric power
Cat network receiving module further includes isolated location, and the isolated location is used for the clutter that isolated power supply module feedback comes；It is described
Homeplug network receiving module connects power module by isolated location.
6. a kind of network of the network connection system based on the terminal with Homeplug function as described in any one of claim 1-5
Connection method, which is characterized in that include the following steps：
A, processing module selected in external wire-line networks, external power cat network launches module and WIFI module one as eventually
The network inputs source at end；
B, when selecting Homeplug network receiving module as network inputs source, processing module makes Homeplug network receiving module
It is connected to the network with terminal；It is no select Homeplug network receiving module as network inputs source when, processing module makes
Homeplug network receiving module resets, and so that it is disconnected the network connection with terminal, and make outside by Homeplug network receiving module
Portion's Homeplug network launches module resets, wherein the processing module controls network switching by GPIO and switchs, processing module
Reset instruction is transmitted to Homeplug network receiving module and Homeplug network launches module by GPIO, resets the two；
The step B is specifically included：When GPIO1 exports low level, TV SOC selects the cable network letter of the first port RJ45
The wireless network signal of number Tx/Rx_2 or WIFI module, while GPIO2 output is low level, to notify Homeplug network to connect
Module resets are received, and disconnect the network connection with TV SOC；The reset that Homeplug network receiving module is connected to TV SOC sending refers to
After order, order is transmitted to power grid by Homeplug network launches module in the form of network packet, makes power cat network launches mould
Block synchronizes is resetted, and the network connection with TV SOC is disconnected, so that be connected to first RJ45 port of the TV SOC along speed
Cable network or the wireless network connected by WIFI module.
7. a kind of terminal with Homeplug function, which is characterized in that the terminal includes as described in claim 1-5 any one
The terminal with Homeplug function network connection system.
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| CN106845606A (en) * | 2016-12-27 | 2017-06-13 | 佘培嘉 | A kind of Dropbox with new interface plug |
| CN106506888A (en) * | 2016-12-27 | 2017-03-15 | 佘培嘉 | A kind of Homeplug with new interface socket |
| CN109861723B (en) * | 2019-01-25 | 2021-12-28 | 安徽南瑞继远电网技术有限公司 | Wireless WiFi equipment for power line carrier communication |
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| CN201518520U (en) * | 2009-10-16 | 2010-06-30 | 康佳集团股份有限公司 | Meshwork television for receiving and dispatching network signals through electric power circuit |
| CN203206407U (en) * | 2013-04-28 | 2013-09-18 | 青岛海信电器股份有限公司 | Internet access device for IPTV and IPTV set |
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| CN105450262A (en) | 2016-03-30 |
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