CN109962844A - A kind of intelligent home gateway device based on PLC - Google Patents
A kind of intelligent home gateway device based on PLC Download PDFInfo
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- CN109962844A CN109962844A CN201711432132.1A CN201711432132A CN109962844A CN 109962844 A CN109962844 A CN 109962844A CN 201711432132 A CN201711432132 A CN 201711432132A CN 109962844 A CN109962844 A CN 109962844A
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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
- H04B3/546—Combination of signalling, telemetering, protection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/66—Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
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- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Small-Scale Networks (AREA)
Abstract
The invention discloses a kind of intelligent home gateways based on PLC, comprising: main control module, storage unit, interactive unit, broadband PLC module, narrowband PLC module, power module；Intelligent home gateway advantage provided by the invention is, the rate and bandwidth requirement transmitted to indoor net with Outdoor Network are asymmetrical, indoor control intelligent socket, household appliances, the control amount of communication data of sensing device are very small, but node is more, it is required that low cost and low-power consumption, narrowband PLC technology can satisfy such demand；Outdoor communication is high with regard to demand bandwidth, and the high channel of transmission rate can make full use of existing power circuit to be communicated, without re-laying pipeline, there is very big saving in cost compared with the conventional communication modes such as optical fiber, ADSL.
Description
Technical field
The invention belongs to telecommunications field more particularly to a kind of intelligent home gateways based on PLC.
Background technique
1), PLC--- is the abbreviation of English Power line Communication.Electric line carrier communication refers to utilization
Analog or digital signal is carried out the technology of network transmission by carrier system by existing power line.Its main feature is that not needing again
Network is set up, as long as live wire, can be carried out data transmission.
Power line carrier communication (PLC) technology comes across the '20s initial stage of twentieth century, it is using power line as biography
Analog or digital signal is become high-frequency signal using carrier system by defeated media, realizes remote transmission by power line.It has
Have the advantages that long transmission distance, channel reliability are high, level security is good, small investment is quick, synchronous with power grid construction, already
As the most widely used communication mode of electric system.It is mainly used for dispatching of power netwoks communication, multiplexing telemechanical, carrier current protection and remote
Square trip signal etc..Low voltage power line carrier starts from the last century 80's in China, has carried out before and after 1998 a large amount of
Research, be in various regions pilot phase within 1998~2003, develop slower, developed after 2003, using gradually promoting,
Demand significant expansion after 2006 is now arranged in the peak period of power line carrier development, it is long-range to be mainly used in electronic electric energy meter
Automatic data logging.The demand in market was also using it as one of information access mode of home network in recent years.
PLC has different mode classifications, generally can be several according to acquisition frequency bandwidth, traffic rate and application etc.
Kind different modes are classified.
1., from acquisition frequency bandwidth angle, PLC can be divided into narrowband PLC (NB-PLC) and broadband PLC (BB-PLC), PLC's
Reference carrier frequency is different in country variant, different regions.
2., from the point of view of the traffic rate of realization, PLC can be divided into low speed PLC (LS-PLC) and high speed PLC (HS-PLC), and one
As using 2Mb/s linear speed as line of demarcation.In general, narrowband PLC is equal to low speed PLC, broadband PLC is equal to high speed PLC.
3., for application, broadband power line carrier is mainly used in video etc. and requires the higher field of transmission rate
It closes, and narrow-band power line carrier technology is mainly used in the Internet of Things such as family, office application.
2), OFDM---- (Orthogonal Frequency Division Multiplexing, OFDM technology), it is
A kind of multi-carrier modulation technology.Its main thought is: breaking a channel into several orthogonal sub-channels, high-speed data signal is converted into
Parallel low speed sub-data flow, is modulated to and is transmitted on each of the sub-channels.Orthogonal signalling can be by using in receiving end
The relevant technologies separate, and can reduce interfere with each other ICI between subchannel in this way.Signal bandwidth on every sub-channels is less than
The correlation bandwidth of channel, therefore flatness decline can be regarded as on every sub-channels, so as to eliminate intersymbol interference.And
And since the bandwidth of every sub-channels is only the sub-fraction of former channel width, channel equalization becomes relatively easy.
The domestic electric power line carrier chip in powerline remote meter reading at present, manufacturer are mostly based on FSK/BPSK skill
Art exploitation, and will be as the information access of home network using just will appear very big problem, it is slow to be directed at transmission rate, communicates
Low efficiency, control ability are poor.Current newest technology is using OFDM (Orthogonal Frequency Division
Multiplexing, OFDM technology), it is a kind of multi-carrier modulation technology, has high speed, noise resistance, transmission range length, covering
Many advantages, such as rate is high is just to start a kind of commercial emerging power line carrier technology in recent years.OFDM technology has reliable
Operating mode, efficient channel coding technology and powerful mechanism for correcting errors, be current smart grid it is most safe, most cost imitate
The communication pattern of benefit.Currently, the PLC standard based on OFDM technology is not yet unified, it is divided into many camps, but technology development is very
Rapidly.Broadband transmission rate reaches 200Mbps, and narrow-band high-speed transmission rate also can achieve 100kbps.
3), intelligent power and smart home
Household intelligent gateway is the key technology for realizing home network and external public network interconnection.It mainly completes family
Conversion and information sharing between the various different communication protocols of internal network, and with the data exchange between external communication network
Function, while the gateway is generally also responsible for managing and controlling for home smart device.It can be to family by Household intelligent gateway
Household electrical appliance, smart machine in internal network etc. carry out central monitoring and long-range monitoring, can monitor in family whenever and wherever possible
Electrical Safety situation, can be with automatic alarm etc..People can also by using Household intelligent gateway to water, electricity, gas meter into
Row is automatically acquired and is copied and accepted, settles accounts.
Intelligent home gateway equipment currently on the market uses the electricity of two kinds of different bandwidths and different transmission rates not yet
The home intelligent device or gateway of line of force carrier technology communication mode asymmetric in this way.The technological means that they generally use is all
It is that ADSL or optical fiber are accessed, interior uses comprehensive wiring or communication, also has simple part to use traditional electricity
Line of force carrier wave carries out networking.
Since intelligent appliance and communication equipment more and more enter family, indoor comprehensive cloth is carried out using ADSL or optical fiber
Line needs to carry out detailed wires design before finishing for newly-built family, and for the family used has been put into then
It need to carry out wiring transformation.Though wireless communication device does not have to rewiring, for residential building of the China based on brick mix structure
For often will cause wall barrier, communicate it is unsmooth.It is not using the maximum advantage that power line carrier technology is communicated
With private communication line is laid, it can use the immanent power line network of household internal and realize the immanent Internet of Things world,
The node location of communication can be adjusted whenever and wherever possible.Especially in old residential area, realize intelligentized family do not need into
The transformation of row internal network plugs and is embedded with the intelligent terminal of power line carrier module the needs of communication control can be realized.With
The progress of technology, the extensive use of the high speed power line carrier chip of narrowband or broadband of new generation based on OFDM technology were electric in the past
The technological deficiency of line of force carrier wave is all resolved.It is particularly obvious that it integrates relatively wireless and comprehensive wiring the advantage of cost performance.
The advantage of broadband power line carrier communication is that its transmission rate is higher, in particular by the load of OFDM technology modulation
Its transmission rate of wave chip can achieve 200Mbps, can satisfy the transmission needs of big data quantity, be applied to family's access
It is most suitable；And the narrow-band power line carrier technology based on OFDM technology is lower relative to its chip cost of broadband, power consumption is also low,
In addition also farther out, networking capability is stronger, compares and is suitably applied indoor networking and as Internet of things node application for its transmission range.
By the power line communication mode of this two kinds of technologies it is integrated apply will be realized on Intelligent home gateway equipment it is most effective and most economical
Communication mode.
Traditional communication modes that current residential households use, have been unable to meet intelligent appliance and wisdom family increasingly increases
Long communication, management, the needs remotely controlled, the present invention provides a kind of wired home nets for being suitable for all kinds of families and using
It closes, by broadband power line carrier communication being communicated with narrow-band power line carrier two kinds of different technologies, different transmission rates are
Module application of uniting realizes and solves in family or like environment inside and outside transmission bandwidth and rate requirement not on a device product
Same occasion.Broadband power line carrier communication is applied to the access communications channel that uplink requires with a large bandwidth and at a high rate, carrying sound view
The internet datas such as frequency and other home intelligent terminals acquisition data, the transmission and service that control information flow；Narrowband power line carries
Wave is applied to low frequency in indoor communications channel, the Internet of things node acquisition of low rate, the transmission and service of control data message stream.
Intelligent terminal management system based on PLC includes the component parts such as home gateway, intelligent socket, household electrical appliance.Both
It may be implemented that bearer service on gateway is managed for configuration, the state that can also carry out Local or Remote to household electrical appliance is looked into
It askes, control management, parameter configuration and software upgrading.
Summary of the invention
The purpose of the present invention is to provide a kind of intelligent home gateways based on PLC, it is intended to solve what residential households used
Conventional communication mode has been unable to meet intelligent appliance and wisdom family growing communication, management, the needs remotely controlled
Problem.
The invention is realized in this way a kind of intelligent home gateway based on PLC, has Intelligent housing hinge and nothing
Route is by two big functions, and by insertion broadband power line carrier module and narrow-band power line carrier module, both are asymmetrical logical
Letter mode realizes its two-way communication, realizes that intelligent power management, smart home management and the network of family or working environment connect
Enter relay function, can be responsible for specific security alarm, home wiring control, power information acquisition, wirelessly with intelligent friendship
The products such as mutual terminal carry out data interaction.It has been also equipped with wireless routing function, and mobile phone, PAD, plurality of devices can be light by it
Electric appliance in pine online, control man.
Intelligent home gateway provided by the invention, by main control module, storage unit, interactive unit, broadband PLC module, narrow
Band PLC module, power module form.
Storage unit, interactive unit, broadband PLC module, narrowband PLC module are only connected with main control module, and power module is
All hardware provides energy source and power.
Main control module is mainly formed with the part such as embedded ARM processor and data/address bus, address bus, clock, is used
To carry out calculating, the control of data；
Storage unit is mainly constituted with Flash storage and random access memory ram, mainly deposit operation system kernel
And other business datums；
Interactive unit, including the display and input/output section function based on touch screen；
Broadband PLC unit is mainly to carry out the communication of family's outer network up channel；
Narrowband PLC unit is mainly to carry out the communication of local area network down channel in family；
Power module provides electric power support to the above various pieces unit.
Further, the communication of main control module and broadband PLC unit, in addition to that can be communicated with the TCP/IP mode of cable
Outside, it can also be attached by USB or bus mode.
Further, the communication of main control module and narrowband PLC unit, in addition to can use UART serial ports (including RS485,
RS232 it) outside being communicated, can also be attached with modes such as TCP/IP, buses.
Intelligent home gateway provided by the invention is the advantage is that the rate and bandwidth transmitted to indoor net with Outdoor Network are wanted
Seeking Truth is asymmetrical, and indoor control intelligent socket, household appliances, the control amount of communication data of sensing device are very small, but node
It is more, it is desirable that low cost and low-power consumption, narrowband PLC technology can satisfy such demand；Outdoor communication is high with regard to demand bandwidth, transmission speed
The high channel of rate, can make full use of existing power circuit to be communicated, no compared with the conventional communication modes such as optical fiber, ADSL
With pipeline is re-lay, there is very big saving in cost.
Detailed description of the invention
Fig. 1 is the topology diagram of intelligent home gateway provided by the invention；
Fig. 2 is the external communication structure figure of intelligent home gateway provided by the invention；
Fig. 3 is intelligent terminal structural schematic diagram provided by the invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
The invention is realized in this way a kind of intelligent home gateway based on PLC, by being embedded in broadband power line carrier mould
Block and both asymmetrical communication modes of narrow-band power line carrier module realize its two-way communication, realize family or office ring
Intelligent power management, smart home management and the network insertion relay function in border.
A kind of intelligent home gateway, detailed construction as shown in Figure 1, include main control module, storage unit, interactive unit,
Broadband PLC module, narrowband PLC module, six part of power module；
Storage unit, interactive unit, broadband PLC module, narrowband PLC module are only connected with main control module, and power module is
All hardware provides energy source and power；
Main control module is mainly formed with the part such as embedded ARM processor and data/address bus, address bus, clock, is used
To carry out calculating, the control of data；
Storage unit mainly with Flash storage and random access memory ram constituted, mainly deposit operation system kernel and
Other business datums；
Interactive unit includes the display and input/output section function based on touch screen；
Broadband PLC unit function is that the data based on different agreement are converted to and carried out data communication, is integrated thereon
Having one piece of electric power line carrier chip based on OFDM technology is the chip of core, can carry out ICP/IP protocol data and Home
Plug AV normal data is converted and is transmitted, and broadband PLC unit is mainly the communication carried out outside family；
Narrowband PLC unit is that its applied bandwidth is different different from the place of broadband PLC, and transmission rate is different,
The standard followed is PRIME power line carrier communication standard, and narrowband PLC unit mainly carries out communication in family；
The above various pieces unit of electric power source pair of module provides electric power support.
1, the uplink communication of Household intelligent gateway is completed by broadband PLC module, as shown in Figure 2；
There is the broadband power for meeting Home Plug AV standard based on OFDM multi-carrier modulation technology in the PLC module of broadband
Line carrier chip, it is more than 200Mbps transmission rate which, which has physical layer,.As the uplink communication list inside home gateway
Member, the module pass through network interface chip by 10M/100M MII (IEEE802.3) interface in broadband PLC chip thereon
DM9000 is simultaneously communicated by cable with main control module with ICP/IP protocol；And broadband PLC chip is by ICP/IP protocol data
It is converted into being suitble to the data-signal of power line carrier transmission after packet processing, and after peripheral circuit is handled, will be counted by coil
It is transmitted according to being coupled on power line, in the tune that the other end of channel has a same broadband PLC module to carry out opposite direction
Demodulation processing processed, is forwarded on public network eventually by communication apparatus such as interchanger, routings.
2, wireless routing function；Signal from public network includes the business datum of data center, internet data, Yong Huyi
The control data etc. of dynamic terminal, other intelligent terminals of insertion broadband PLC module are connected to by the data switching exchane at cell end
Ethernet data is converted into being suitble to the data-signal of power line carrier transmission, and coupling by equipment (such as concentrator), broadband PLC module
It closes and is transmitted on power line, control signal turns again with the corresponding broadband PLC module that data-signal reaches inside home gateway
It changes Ethernet data bag into, is stored in memory through data/address bus, while triggering interruption and informing arm processor, in processor calling
Disconnected processing function, and shift data onto protocol stack by driver and parse, and send data to the port of setting.
3, the downlink communication of Household intelligent gateway is responsible for by narrowband PLC module, as shown in Figure 2；
There is the narrow-band high-speed power line for meeting PRIME standard based on OFDM multi-carrier modulation technology to carry in narrowband PLC module
Wave chip, the transmission rate of the chip is in 100Kbps or more.As the downlink communication unit inside home gateway, narrowband PLC mould
Block by its UART (Universal Asynchronous Receiver/Transmitter, universal asynchronous receiving-transmitting) interface with
The arm processor of main control module carries out signal data transmission, the data-signal from main control module by narrowband carrier chip and
After peripheral circuit processing, couples it on power line and transmitted, the other end of power line channel is corresponding inside of the house
There is a same narrowband PLC module to carry out the modulatedemodulate reconciliation process of opposite direction, completes communication function, and finally realize to work
For the communication control function of the intelligent terminal such as intelligent socket or household electrical appliance of family's Internet of things node.
5, as shown in figure 3, the control instruction from interactive unit or outer net is by leading to after intelligent home gateway aggregation process
Parsing is crossed, such as is destined for the finger of indoor each Internet of things node (such as intelligent socket, the household electrical appliance for being embedded in narrowband PLC module)
It enables, downlink transfer will be carried out by the narrowband PLC module in home gateway；Home gateway can periodically acquire each indoor node
Data, collection process is to issue the instruction of acquisition data to processor UART port by application layer collecting thread, and by narrow
It is converted into being transmitted on the power line that power line carrier signal is coupled in family by coil after handling with PLC chip.
6, the main control module of home intelligent terminal is equipped with Linux or Windows using embedded ARM processor as core
The embedded OSs such as CE, cooperation SDRAM and Flash storage unit, the other functions component such as power module are realized to coming from
Control signal outside family is carried out with the signal and data uploaded from the various intelligent terminals of household internal and sensor terminal
The work such as analysis, calculating, relaying, storage.
7, this based on broadband and narrowband power-line carrier communication connected applications used by home intelligent terminal
Mode and processing method have the feature that narrowband PLC module requires to apply in pairs with broadband PLC module；In home gateway
This two kinds of modules are integrated respectively；Phase must be integrated on other intelligent terminals of the other end of downstream and upstream channel correspondingly
Corresponding PLC module is completed to carry out from power line modulation-demodulation signal and to be converted into needing the work of signal.
Further, the communication of main control module and broadband PLC unit, in addition to that can be communicated with the TCP/IP mode of cable
Outside, it can also be attached by USB or bus mode.
Further, the communication of main control module and narrowband PLC unit, in addition to can use UART serial ports (including RS485,
RS232 it) outside being communicated, can also be attached with modes such as TCP/IP, buses.
Intelligent home gateway has Intelligent housing hinge and the big function of wireless routing two, can be responsible for specific security protection
Alarm, home wiring control, power information acquisition, wirelessly carry out data interaction with products such as smart-interactive terminals.It is also
Has a wireless routing function, mobile phone, PAD, plurality of devices can easily logging onto the Internet, the electric appliance in control man by it.This intelligence
The external communication mode of home gateway mainly pass through insertion broadband power line carrier module and narrow-band power line carrier module this
Two kinds of asymmetrical communication modules are realized, this is because the progress of carrier chip technology, a kind of completely new communication of bring
Mode can solve other indeterminable problems of communication mode in household or working environment intelligence, networking.This intelligent family
Front yard gateway can be realized home intelligent power management, smart home management and network insertion relay function.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (8)
1. a kind of intelligent home gateway based on PLC, which is characterized in that the intelligence fills home gateway and includes:
Main control module is made of embedded type CPU and peripheral circuit, is responsible for calculating, analysis, the control of whole system；
Storage unit, is used for deposit operation system kernel and business datum, and storage unit is connected with main control module；
Interactive unit, for providing the input/output function of display function and communication data based on touch screen, interactive unit
It is connected with main control module；
Broadband PLC module, for carrying out external uplink communication, broadband PLC module is connected with main control module；
Narrowband PLC module, for carrying out internal downlink communication, narrowband PLC module is connected with main control module；
Power module is connected with the main control module, storage unit, interactive unit, broadband PLC module, narrowband PLC module,
For providing energy source and power.
2. intelligent home gateway as described in claim 1, which is characterized in that the main control module is equipped with embedded-type ARM processing
Device installs Linux or Windows CE embedded OS.
3. intelligent home gateway as described in claim 1, which is characterized in that the broadband PLC module is more based on OFDM containing having
Carrier modulation technique, the broadband power line carrier chip for meeting Home Plug AV standard；The module core chip passes through 10M/
100M MII interface is communicated with main control module by Ethernet protocol, again is coupled on power line and is transmitted, in channel
The other end have a same broadband PLC module.
4. intelligent home gateway as described in claim 1, which is characterized in that the narrowband PLC module contains based on OFDM overloading
Wave modulation technique, the narrow-band high-speed electric power line carrier chip for meeting PRIME standard, the module core chip by UART interface with
Main control module carries out signal data transmission, again is coupled on power line, should have relatively in the other end of channel one same narrow
Band PLC module.
5. intelligent home gateway as described in claim 1, which is characterized in that the broadband PLC module requires to apply in pairs, collection
At in all external communication positions；Corresponding broadband PLC must be integrated on other intelligent terminals of the other end of up channel
Module.
6. intelligent home gateway as described in claim 1, which is characterized in that the narrowband PLC module needs application in pairs, this mould
Block is integrated in all internal communication positions；Corresponding narrowband must be integrated on other intelligent terminals of the other end of down channel
PLC module.
7. intelligent home gateway as described in claim 1, which is characterized in that the communication of the main control module and broadband PLC unit,
Other than it can be communicated with the TCP/IP mode of cable, it can also be attached by USB or bus mode.
8. intelligent home gateway as described in claim 1, which is characterized in that the communication of the main control module and narrowband PLC unit,
Other than it can be communicated with UART serial ports, it can also be attached with TCP/IP, bus mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711432132.1A CN109962844A (en) | 2017-12-26 | 2017-12-26 | A kind of intelligent home gateway device based on PLC |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711432132.1A CN109962844A (en) | 2017-12-26 | 2017-12-26 | A kind of intelligent home gateway device based on PLC |
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| Publication Number | Publication Date |
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| CN109962844A true CN109962844A (en) | 2019-07-02 |
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ID=67021983
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| CN201711432132.1A Pending CN109962844A (en) | 2017-12-26 | 2017-12-26 | A kind of intelligent home gateway device based on PLC |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111093248A (en) * | 2019-12-16 | 2020-05-01 | 北京小米移动软件有限公司 | Network distribution method, network distribution device and electronic equipment |
| CN113839692A (en) * | 2021-08-26 | 2021-12-24 | 珠海格力电器股份有限公司 | Wireless transmission network system based on power line |
-
2017
- 2017-12-26 CN CN201711432132.1A patent/CN109962844A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111093248A (en) * | 2019-12-16 | 2020-05-01 | 北京小米移动软件有限公司 | Network distribution method, network distribution device and electronic equipment |
| US11595080B2 (en) | 2019-12-16 | 2023-02-28 | Beijing Xiaomi Mobile Software Co., Ltd. | Network distribution method and apparatus, and electronic device |
| CN113839692A (en) * | 2021-08-26 | 2021-12-24 | 珠海格力电器股份有限公司 | Wireless transmission network system based on power line |
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