CN103973520B - The more medium high-speed wideband interconnecting terminal devices of power line carrier - Google Patents

The more medium high-speed wideband interconnecting terminal devices of power line carrier Download PDF

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Publication number
CN103973520B
CN103973520B CN201310027478.9A CN201310027478A CN103973520B CN 103973520 B CN103973520 B CN 103973520B CN 201310027478 A CN201310027478 A CN 201310027478A CN 103973520 B CN103973520 B CN 103973520B
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China
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interface
signal
power line
power
ethernet
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CN201310027478.9A
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CN103973520A (en
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李晓东
蔡震
刘武
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Core Communication Co., Ltd.
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Core Communication Co Ltd
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Abstract

The present invention relates to power line, telephone wire, coaxial line carrier communication equipment fields, disclose a kind of more medium high-speed wideband interconnecting terminal devices of power line carrier.In the present invention, by receiving the network digital signal from Ethernet interface, network digital signal is converted into analog signal, and export to power line carrier interface, telephone line interface or coaxial line interface;Or receive the analog signal from power line carrier interface, telephone line interface or coaxial line interface, convert analog signals into network digital signal, and it exports to Ethernet interface, the high speed interconnected communication of the two-wires media such as telephone wire, coaxial line, power line, ethernet line can be realized by signal loading on telephone wire, coaxial line, power line.Communication is carried out on above-mentioned transmission medium due to the use of unified signal(-) carrier frequency, solves signal conflict and signal coupled problem when being communicated using power line, telephone wire, coaxial line.

Description

The more medium high-speed wideband interconnecting terminal devices of power line carrier
Technical field
The present invention relates to power line, telephone wire, coaxial line carrier communication equipment fields, the more particularly to more matchmakers of power line carrier Jie's high-speed wideband interconnecting terminal device.
Background technology
With the fast development of Chinese national economy, living standards of the people greatly improve, and Modern Family generally can all connect Enter high definition video network, telephone line network and broadband network, but the home network with modern light velocity network is fitted up by Modern Family There are contradictions in network application:
1, high-definition network video is mainly used on television set, and does not have cable by television set, only coaxial line and electricity The line of force.
2, the application of VOIP needs network, is being suitble to the place of electric discharge phone that may there was only telephone wire, may not have electric power Line and cable
Both the above asks condition for traditional network equipment, and broadband HD video can not be solved in the case of no wiring Transmission problem.
In addition, for some families, due to the development of information technology and the upgrading of network, coaxial line, telephone wire originally It has been do not used that, as simulated television has been changed to Web TV(IPTV), analog phone is changed to the networking telephone(VOIP)Deng, for The efficient recycling of the coaxial line and telephone wire discarded is a reality and promising technology.
However, at present telephone wire, coaxial line, there are following limitations for power line communication technology:
1, power line carrier communication terminal device(Power Line Communication)Referred to as " PLC ")It can only rely on Power line transmission data, and the electrical equipment on power line is complexity, interference is numerous, and communication band is cannot be satisfied in particular surroundings Wide and communication distance requirement.
2, the main ADSL of carrier communication mode on the telephone line is loaded(Asymmetric Digital Subscriber Line, referred to as " ADSL ")Mode, this technology bandwidth is limited, and cost is higher, is not suitable in home broadband Use can not play its potentiality especially in the application of current family's HD video.
3, the use of family coaxial cable is in addition to being limited to watching for cable television, the cable television also carried out in some areas In net transformation, ether data are transmitted by coaxial cable(Ethernet over Coax, referred to as " EOC ")Mode accessed house Front yard broadband is playing more effects.
Therefore, either old-fashioned house or new finishing house, no matter basic local-style dwelling houses or Deluxe villa, primary finishing The bandwidth requirement of the broadband network and HD video in the requirement of all network Developments, especially light velocity epoch cannot always be solved Under, need more quickly it is more quick, through walls need not hole, need not the broadband signal problem that can solve of rewiring.
According to reality, all utilizable broadband resource in family are integrated, meets family's middle width strip requirement, reduce Total amount of electromagnetic radiation in family, reduces the use of wireless network to the greatest extent, still, is carried using power line carrier communication, coaxial line Wave communication, line carrier wave communicate signal conflict and signal coupling in inevitably power line, telephone wire, coaxial line The problem of.
Invention content
The purpose of the present invention is to provide a kind of more medium high-speed wideband interconnecting terminal devices of power line carrier, solve and adopt Signal conflict when being communicated with power line, telephone wire, coaxial line and signal coupled problem.
In order to solve the above technical problems, embodiments of the present invention provide a kind of more medium high-speed widebands of power line carrier Interconnecting terminal device, including:External interface, power supply and Signal Exchange Processing device;The power supply and Signal Exchange Processing device and institute State external interface connection;
Wherein, the external interface includes:Ethernet interface and with any one or the arbitrary combination in lower interface:Electricity Line of force carrier interface, telephone line interface and coaxial line interface;The telephone line interface is connected with coaxial line interface with two biographies The arbitrary cable of conducting wire;
The power supply and Signal Exchange Processing device receive the network digital signal from the Ethernet interface, by network number Word signal is converted into analog signal, and exports to any one or the interface that arbitrarily combines in lower interface:The electric power Line carrier interface, the telephone line interface and the coaxial line interface;Alternatively,
The power supply and Signal Exchange Processing device receive from in lower interface any one or that arbitrarily combines connect The analog signal of mouth:The power line carrier interface, the telephone line interface and the coaxial line interface, and analog signal is turned It changes network digital signal into, and exports to the Ethernet interface.
Embodiment of the present invention in terms of existing technologies, is believed by receiving the network digital from Ethernet interface Number, network digital signal is converted into analog signal, and export to power line carrier interface, telephone line interface or coaxial line and connect Mouthful;Or the analog signal from power line carrier interface, telephone line interface or coaxial line interface is received, analog signal is converted It at network digital signal, and exports to Ethernet interface, can be realized by signal loading on telephone wire, coaxial line, telephone wire Telephone wire, coaxial line, power line and its mutual communication.Due to the electricity on telephone wire, coaxial line and power line transmission medium Gas characteristic and characteristics of signals are different, between different transmission mediums can not direct interconnection, and generate signal conflict, influence just Normal signal transmission.The present invention provides a kind of novel transmission medium coupling process and circuits, and are carried using unified signal Wave frequency rate is carrying out the signal for communicating and solving when being communicated using power line, telephone wire, coaxial line on above-mentioned transmission medium Conflict and signal coupled problem, and the high speed interconnection for the two-wires medium, ethernet line such as realize power line, telephone wire, coaxial line Communication.
In addition, the power supply and Signal Exchange Processing device include:Signal coupling unit, central processing unit;
The signal coupling unit is connect with the central processing unit, and with the power line carrier interface, the electricity Talk about any one in line interface, the coaxial line interface or arbitrary combination connection;
The central processing unit is connect with the Ethernet interface.
By signal coupled modes, improve signal in Ethernet, power line network, telephone line network and coaxial line network Between transmission, signal conflict when can further solve to be communicated using power line, telephone wire, coaxial line and signal coupling Conjunction problem.
In addition, the central processing unit includes:Modulation /demodulation central processing subelement, signal processing subelement, ether Net processing subelement, flash storage, Memory memories;
The Ethernet processing subelement processing receives the signal from the Ethernet interface, and carries out ethernet signal Conversion between the data of the adjustment demodulation central processing subelement;
The modulation /demodulation central processing subelement is encoded or is decoded to signal, and coordinates the work between each module State;The modulation /demodulation central processing subelement is directly connected to the flash storage and the Memory memories;
The flash storage is used to store the operating system of the modulation /demodulation central processing subelement and work is joined Number, the Memory memories are that required dynamic data storage sky is provided after the modulation /demodulation central processing subelement starts Between;
The front end of the signal processing subelement is directly connected to the signal coupling circuit, and rear end is directly connected to the modulation Central processing subelement is demodulated, the analog to digital-digital to analog converter between front end analogue signal and back-end digital signal is carried out.
By modulation-demodulation technique, according to can be special in power line, telephone wire, the signal band of coaxial line transmission, amplitude Point and the former property for applying signal, select the frequency band that can be used in conjunction with and amplitude, are carried out on the basis of not influencing former application Comprehensive covering of home network may be implemented in signal transmission.
In addition, the power supply and Signal Exchange Processing device also include:Power line security isolation unit;
The power line security isolation unit is connect with the power line carrier interface and the signal coupling unit respectively.
Using power line security isolation unit, the forceful electric power in isolated preceding-terminal power line network and internal circuit of the present invention, guarantor Shield interior arrangement is interfered from external forceful electric power, meets the requirement of the communication bandwidth and communication distance using power line carrier communication.
In addition, the signal coupling unit is a coupling transformer;
The coupling transformer is made of a magnet ring and at least two groups winding, and it is the electricity that frequency response parameter, which is arranged, A value in the frequency range of the transmission signal of the more medium interconnecting terminal devices of line of force carrier wave;
Each group of winding is formed by independent insulated conductor around magnet ring, and two in one of which winding tap is connected to Two taps in the central processing unit, other windings are connected respectively to the power line security isolation unit or described Corresponding one in external interface, two taps of each winding only connect an interface electricity in the external interface Road.
By transformer coupled, the signal of telephone wire, coaxial line, power line is intercoupled, transmitted, due to coupling transformation Each group of winding of device is all dielectrically separated from, so, the electricity outside direct current ingredient or frequency range in any one network Power ingredient is all not coupled in other networks.
In addition, the power line security isolation unit includes:Input terminal, fuse, varistor and safety capacitance;
The input terminal have both threads, respectively with the firewire and zero curve in the power line carrier interface, or anode It is connected with cathode, the fuse of connecting, the varistor in parallel, and respectively on two lines after concatenation safety capacitance, even It is connected in two taps of winding in the coupling transformer;Signal in frequency range described in the safety capacitance to transparent transmission, Completely cut off the signal and voltage of other frequencies, and when external circuit has exceeded load, disconnects connected circuit.
Power line security isolation unit uses fuse, carries out overcurrent protection;Using varistor, overvoltage protection is carried out; Using the forceful electric power and back-end circuit of safety Capacitor apart front end, realizes the internal circuit of the protection present invention, meet power line carrier The purpose of the requirement of the communication bandwidth and communication distance of communication.
In addition, it is described power supply and Signal Exchange Processing device also include high pressure resistant capacitance, be serially connected in the telephone line interface or Between winding in coaxial line interface and the coupling transformer described in person.Using high pressure resistant Capacitor apart telephone wire/twisted-pair feeder Or the flip-flop in coaxial line network, it can be influenced from the load power source in external network with protection signal coupling unit.
In addition, also including:Power supply power supply interface and power supply processing circuit;The power supply power supply interface and the power line carry Wave interface is referred to as power interface;
The power supply processing circuit is connect with the power interface and the power supply and Signal Exchange Processing device respectively, will be from The power source transition of the power interface input is at least one set of DC power supply needed for the Signal Exchange Processing device;The input Power supply be AC power or DC power supply.
The various supplies of electric power in the device of the invention needed for internal circuit are provided by power supply processing circuit, make the present apparatus Various external input powers are adapted to, are convenient for people to use, the popularization of product is convenient for.
In addition, the telephone line interface connection telephone wire or general twisted-pair power cable network, connect at least one telephone wire or double Twisted wire network interface;
The coaxial line interface connects generic coaxial gauze network, connects at least one coaxial line network interface;
The Ethernet interface connects Ethernet, connects at least one Ethernet interface.
By telephone line interface, coaxial line interface, Ethernet interface be separately connected multiple telephone wires or twisted-pair feeder network interface, The interconnection of arbitrary network may be implemented in coaxial line network interface, Ethernet interface, further realizes comprehensive covering of home network.
Description of the drawings
Fig. 1 is the schematic diagram according to the more medium interconnecting terminal devices of power line carrier of a better embodiment of the invention;
Fig. 2 is the schematic diagram that the more medium interconnecting terminal devices of power line carrier connect two coaxial interfaces;
Fig. 3 is the structural schematic diagram of power supply and Signal Exchange Processing device;
Fig. 4 is the structural schematic diagram of central processing unit;
Fig. 5 is the schematic diagram of Ethernet processing unit circuit;
Fig. 6 is the graphical diagram of signal coupling unit;
Fig. 7 is the structural schematic diagram of signal coupling unit;
Fig. 8 is power line security isolation cell schematics;
Fig. 9 is the signal isolation schematic diagram between telephone line interface or coaxial line interface and signal coupling unit;
Figure 10 is the schematic diagram of power supply processing circuit.
Specific implementation mode
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to each reality of the present invention The mode of applying is explained in detail.However, it will be understood by those skilled in the art that in each embodiment of the present invention, In order to make the reader understand this application better, many technical details are proposed.But even if without these technical details and base In the various changes and modifications of following embodiment, each claim of the application technical side claimed can also be realized Case.
Embodiments of the present invention are related to a kind of more medium interconnecting terminal devices of power line carrier, which connects comprising outside Mouth, power supply and Signal Exchange Processing device, power supply and Signal Exchange Processing device are connect with external interface, as shown in Figure 1.Power supply and letter Number switching processor receives the network digital signal from Ethernet interface, and network digital signal is converted into analog signal, and It exports to other external interfaces;Alternatively, power supply and Signal Exchange Processing device receive the analog signal from other external interfaces, it will Analog signal is converted into network digital signal, and exports to Ethernet interface.In the present invention, pass through modulation-demodulation technique, root According to the property that can apply signal in power line, telephone wire, the signal band of coaxial line transmission, amplitude feature and original, selection can With the frequency band and amplitude being used in conjunction with, signal transmission is carried out on the basis of not influencing former application, is selected according to the characteristics of circuit Suitable frequency, and be configured by software.And improve the coupling process of signal, by transformer coupled, by telephone wire, together Axis, power line signal intercouple, transmit, realize telephone wire, coaxial line, power line and its mutual communication.Due to Telephone wire, coaxial line and electrical characteristic on power line transmission medium and characteristics of signals are different, between different transmission mediums Can not direct interconnection, and generate signal conflict, influence normal signal transmission.The present invention provides a kind of novel transmission matchmakers Jie's coupling process and circuit, and carry out communication on above-mentioned transmission medium using unified signal(-) carrier frequency and solve using electricity The signal conflict when line of force, telephone wire, coaxial line are communicated and signal coupled problem, and realize power line, telephone wire, same The high speed interconnected communication of the two-wires such as axis medium, ethernet line.
Wherein, external interface includes:Ethernet interface and with any one or the arbitrary combination in lower interface:Power line Carrier interface, telephone line interface and coaxial line interface.Specifically, external interface be power interface 101, telephone line interface 102, Coaxial line interface 103, Ethernet interface 104, wherein power interface provide power supply power supply interface and power line carrier interface.Electricity Line interface connection telephone wire or general twisted-pair power cable network are talked about, at least one telephone wire or twisted-pair feeder network interface are connected;Coaxial line interface Generic coaxial gauze network is connected, at least one coaxial line network interface is connected;Ethernet interface connects Ethernet, and connection is at least one Ethernet interface.That is, telephone line interface connection telephone wire or general twisted-pair power cable network, can connect a telephone wire or multiple twin Gauze mouth can also be made of multiple similar interfaces;Coaxial line interface connects generic coaxial gauze network, can by an interface or Multiple interface compositions;Ethernet interface connects Ethernet, can be made of an interface or multiple interfaces.In the above interface, Power supply power supply interface and Ethernet interface are necessary, power line carrier interface, telephone line interface, coaxial line interface at least one It is a to be necessary.When only power line carrier interface, the present apparatus realizes the interconnected communication of Ethernet and power line network;When Only telephone line interface when, the present apparatus realizes the communication of Ethernet and telephone wire or twisted-pair wire net;When only coaxial line connects When mouth, the present apparatus realizes the communication of Ethernet and coaxial line network;When power line carrier interface connects simultaneously with telephone line interface When connecing, the present apparatus realizes the interconnected communication of Ethernet, power line network and telephone wire/twisted-pair wire net;When only telephone wire When interface and coaxial line interface connect simultaneously, the present apparatus realizes Ethernet and telephone wire/twisted-pair wire net and coaxial line network Interconnected communication;When power line carrier interface, telephone line interface and coaxial line interface connect simultaneously, the present apparatus realizes ether The interconnected communication of net, power line network and telephone wire/twisted-pair wire net and coaxial network.It is two that Fig. 2, which show coaxial interface, Or more when schematic diagram, function as common three links: link of trade, travel and post interface, two outside ports 201,202 in figure are straight-through, An impedance matching circuit is connected between outside port and internal port, it is ensured that there is minimum decaying between signal.
The external interface connection power supply of the present apparatus and Signal Exchange Processing device, the power supply and Signal Exchange Processing device provide Supply of electric power needed for internal circuit realizes coupling and processing, the multiple signal interface of the mutual contact mode, signal of various networks Exchanged form, Coordination Treatment of various parts etc. are implemented as shown in 3 dotted line frame internal portions of attached drawing.Power supply and letter Number switching processor includes:Signal coupling unit, central processing unit;Central processing unit is connect with Ethernet interface, signal Coupling unit is connect with central processing unit, and with any one in power line carrier interface, telephone line interface, coaxial line interface Or arbitrary combination connection, the specific external interface of device according to the present embodiment determine.
Central processing unit provides the connection with signal coupling unit and Ethernet interface, and to signal carry out processing and Coordinate, further includes:Modulation /demodulation central processing subelement, signal processing subelement, Ethernet processing subelement, Flash Memory, Memory memories manage the fortune of complete machine as shown in figure 4, modulation /demodulation central processing unit is the heart of complete machine Row, Ethernet processing subelement and signal processing subelement work under its coordination.Modulation /demodulation central processing subelement, signal Processing subelement, Ethernet processing subelement, Flash, Memory may be implemented, in same chips, can also independently deposit .Specifically, Ethernet processing subelement processing receives the signal from Ethernet interface, and carries out ethernet signal and adjust Conversion between the data of whole demodulation central processing subelement;Modulation /demodulation central processing subelement is encoded or is solved to signal Code, and coordinate the working condition between each module;Modulation /demodulation central processing subelement be directly connected to flash storage and Memory memories;Flash storage is used to store the operating system and running parameter of modulation /demodulation central processing subelement, Memory memories are then to provide required dynamic data storage space after modulation /demodulation central processing subelement starts;At signal The front end of reason subelement is directly connected to signal coupling circuit, and rear end is directly connected to modulation /demodulation central processing subelement, before progress The analog to digital-digital to analog converter between analog signal and back-end digital signal is held, is formed by sending and receiving two parts, by modulation /demodulation The digital signal of central processing subelement switchs to send out in the defeated analog signal of telephone wire, coaxial line, phone line It goes, while the analog signal received is converted to digital signal and is transmitted to modulation /demodulation central processing subelement.Further, since Ethernet interface can be made of one or more network interface, so Ethernet handles subelement also to individual ethernet network interface Or multiple Ethernet interfaces carry out timesharing connection and coordinated manipulation so that in multiple Ethernet interface data and modulation /demodulation Centre processing subelement carries out the swap operation of data.That is, ether net unit is by a phy chip(PHY)With network interface group At, can also be made of multiple network interfaces and corresponding PHY Ethernet exchangings circuit, connection use.Fig. 5 show Ethernet processing The schematic diagram of element circuit, this element circuit enable to single port or multiport Ethernet and modulation /demodulation central processing unit Carry out data exchange and communication.
Signal coupling unit provides the connection side of power line, telephone wire/twisted-pair feeder, coaxial line and central processing unit Formula is illustrated in figure 6 the graphical diagram of signal coupling unit, indicate the unit be a coupling transformer, realize signal from around Being of coupled connections between group 1 and winding 2,3,4, concrete implementation is as shown in Figure 7.Coupling transformer is by a magnet ring 700 and more Group winding composition, and be arranged in frequency response parameter to the frequency range of the transmission signal of present embodiment, such as 1MHz is extremely Frequency range between 100MHz or in 1MHz to the different sections of one or more of 100MHz ranges.Each group of winding by Independent insulated conductor is formed around magnet ring, two in one of which winding tap be connected to central processing unit, other around Two taps in group are connected respectively to corresponding one in power line security isolation unit or external interface, it is each around Two taps of group only connect an interface circuit in external interface.Such as winding 701 connects central processing unit, around 702 connection power line security isolation unit of group, winding 703 connect telephone wire Processing Interface, and winding 704 connects coaxial line processing and connects Mouthful.By transformer coupled, the signal of telephone wire, coaxial line, power line is intercoupled, transmitted, all due to each group of winding It is dielectrically separated from, so, the electricity component outside direct current ingredient or frequency range in any one network will not all couple Into other networks.The number of windings is at least two groups, can also be three groups, four groups, five groups, the number networks specifically optionally connected Depending on.Winding can be 2 groups according to different application forms(1:1), 3 groups(1:1:1), 4 groups(1:1:1:1), 5 group (1:1:1:1: 1), with for different applications:
2 groups(1:1), 3 groups(1:1:1):Power line or telephone wire or coaxial line;
3 groups(1:1:1), 4 groups(1:1:1:1):Power line and coaxial line or power line and telephone wire or coaxial line and electricity Talk about line;
4 groups(1:1:1:1), 5 group (1:1:1:1:1):Power line, coaxial line, telephone wire;
In addition, power supply and Signal Exchange Processing device also include:Power line security isolation unit;Power line security isolation unit It is connect respectively with power line carrier interface and signal coupling unit, provides the security isolation mode of external forceful electric power and device.Such as Shown in Fig. 8, power line security isolation unit includes:Input terminal 801, fuse 802, varistor 803 and safety capacitance 804; Input terminal has both threads, is connected respectively with cathode with the firewire and zero curve in power line carrier interface, or anode, series connection is molten Disconnected device, varistor in parallel, and respectively on two lines after concatenation safety capacitance, it is connected to two of winding in coupling transformer In tap 805.That is, port L and N are connected to the firewire and zero curve of power line respectively(AC power supply)Or positive and cathode (Powered by direct current), a fuse is concatenated, overcurrent protection is used for;Varistor in parallel is used for overvoltage protection, embodies When input power is more than rated value, varistor conducting bleeds off excess charge, protects interior arrangement;It is being gone here and there on two wires Two safety capacitances are connect, the forceful electric power and back-end circuit of isolated preceding-terminal are used for, solve the safety problem with the coupling of power line;Currently After the voltage and current off-rating for holding power supply, safety capacitance disconnects at once, protective device internal circuit.In addition, the safety is electric Hold the signal in a transparent transmission frequency range, completely cuts off signal and voltage except frequency range, to achieve the purpose that isolation signals.
Power supply and Signal Exchange Processing device also include high pressure resistant capacitance 901, as shown in figure 9, be serially connected in telephone line interface or Between winding 903 in the coaxial line interface 902 of person and coupling transformer, for telephone wire/twisted-pair feeder or coaxial line network to be isolated In flip-flop, protection signal coupling unit from external network load power source influence.
Power supply processing circuit provides the various supply of electric power modes needed for device.Power supply processing circuit connects with power supply respectively Mouth is connected with power supply with Signal Exchange Processing device, is needed for Signal Exchange Processing device by the power source transition inputted from power interface At least one set of DC power supply;The power supply of input is AC power or DC power supply.In practical implementations, it can be switch electricity Source inputs 85 ~ 265V alternating current and direct currents, exports as 12V, 5V, 3.3V etc., include mainly protection, isolation, rectification, filtering, Switch module, transformer and backfeed loop composition, power for complete machine, and as shown in Figure 10, effect is that input power is changed into The DC power supply of one or more groups of different voltages and power needed for circuit.Power input can be AC power, or straight Galvanic electricity source;Relative to DC power supply, when AC power is input power, which needs to carry out transformation and rectification to AC power Processing.
In practical implementations, mainly by attaching plug outside complete machine(Or socket), network interface(RJ45), telephony interface (RJ11), coaxial port(BNC connector), indicator light, the compositions such as button, indicator light distinguishes corresponding power, Ethernet, signal(Double lamps Three colors)Equal signal designations, button main function are networking, logout and recovery factory state etc..
The device of the invention can be separately through power line communication;It can be separately through phone line communication;It can be separately through Coaxial line communicates;It can also be mixed by power line, telephone communication;Can also by, power line, coaxial line mixed communication; Coaxial line, telephone wire mixed communication can be passed through;It is logical that mixing can also be carried out by three kinds of coaxial line, telephone wire, power line lines Letter, therefore, the device of the invention can bring following effect:
1, comprehensive covering of home network may be implemented in device through the invention:There is the place of electricity just to have network, there is electricity Just there is network in the place of words line, there is coaxial line(Tv line)Place just have network.Substantially cover the institute of home network application Have a position, no matter common online or the networking telephone, Internet video or HD video, can satisfactorily resolve.
2, for also in the telephone wire of application and central axes, in the case where not influencing former function, increasing new transmission The function in broadband.The value for increasing circuit reduces new network layout, reduces decoration cost, saves Master Cost, does The multiplexing of resource is arrived.
3, for some families, due to the upgrading of phone(Mobile phone and the networking telephone, cost are lower)Telephone wire is It does not use.Due to the development of Web TV(Such as the high definition IPTV of telecommunications), coaxial line do not used.In these families Telephone wire, coaxial line without any effect, belong to waste, these utilizations of resources are got up by the invention, solve Practical problem in family.
It will be understood by those skilled in the art that the respective embodiments described above are to realize specific embodiments of the present invention, And in practical applications, can to it, various changes can be made in the form and details, without departing from the spirit and scope of the present invention.

Claims (8)

1. a kind of more medium high-speed wideband interconnecting terminal devices of power line carrier, which is characterized in that include:External interface, power supply With Signal Exchange Processing device;The power supply and Signal Exchange Processing device are connect with the external interface;
Wherein, the external interface includes:Ethernet interface and with any one or the arbitrary combination in lower interface:Power supply connects Mouth, telephone line interface and coaxial line interface;The power interface includes power line carrier interface;The telephone line interface and coaxial Arbitrary cable of the line interface connection with two call wires;
The power supply and Signal Exchange Processing device receive the network digital signal from the Ethernet interface, and network digital is believed It number is converted into analog signal, and is exported to any one or the interface that arbitrarily combines in lower interface:The power line carries Wave interface, the telephone line interface and the coaxial line interface;Alternatively,
The power supply and Signal Exchange Processing device are received from any one or the interface that arbitrarily combines in lower interface Analog signal:The power line carrier interface, the telephone line interface and the coaxial line interface, and convert analog signals into Network digital signal, and export to the Ethernet interface;
The power supply and Signal Exchange Processing device include:Signal coupling unit, central processing unit;
The signal coupling unit is connect with the central processing unit, and with the power line carrier interface, the telephone wire Any one in interface, the coaxial line interface or arbitrary combination connection;
The central processing unit is connect with the Ethernet interface;
The power supply and Signal Exchange Processing device also include:Power line security isolation unit;
The power line security isolation unit is connect with the power line carrier interface and the signal coupling unit respectively;
The power line security isolation unit includes:Input terminal, fuse, varistor and safety capacitance;
The input terminal have both threads, respectively with the firewire and zero curve in the power line carrier interface, or anode and it is negative Extremely it is connected, the fuse of connecting, the varistor in parallel, and respectively on two lines after concatenation safety capacitance, be connected to In the signal coupling unit.
2. the more medium high-speed wideband interconnecting terminal devices of power line carrier according to claim 1, which is characterized in that described Central processing unit includes:Modulation /demodulation central processing subelement, signal processing subelement, Ethernet processing subelement, Flash Memory, Memory memories;
The Ethernet processing subelement processing receives the signal from the Ethernet interface, and carries out ethernet signal and institute State the conversion between the data of modulation /demodulation central processing subelement;
The modulation /demodulation central processing subelement is encoded or is decoded to signal, and coordinates the work shape between each module State;The modulation /demodulation central processing subelement is directly connected to the flash storage and the Memory memories;
The flash storage is used to store the operating system and running parameter of the modulation /demodulation central processing subelement, institute It is to provide required dynamic data storage space after the modulation /demodulation central processing subelement starts to state Memory memories;
The front end of the signal processing subelement is directly connected to the signal coupling unit, and rear end is directly connected to the modulation /demodulation Central processing subelement carries out the analog to digital-digital to analog converter between front end analogue signal and back-end digital signal.
3. the more medium high-speed wideband interconnecting terminal devices of power line carrier according to claim 2, which is characterized in that described Ethernet handles subelement and also carries out timesharing connection and coordination to individual ethernet network interface or at least two Ethernet interfaces Operation so that at least two Ethernet interface data exchange behaviour with modulation /demodulation central processing subelement progress data Make.
4. the more medium high-speed wideband interconnecting terminal devices of power line carrier according to claim 1, which is characterized in that described Signal coupling unit is a coupling transformer;
The coupling transformer is made of a magnet ring and at least two groups winding, and it is the power line that frequency response parameter, which is arranged, A value in the frequency range of the transmission signal of the more medium interconnecting terminal devices of carrier wave;
Each group of winding is formed by independent insulated conductor around magnet ring, and two in one of which winding tap is connected to described Two taps in central processing unit, other windings are connected respectively to the power line security isolation unit or the outside Corresponding one in interface, two taps of each winding only connect an interface circuit in the external interface.
5. the more medium high-speed wideband interconnecting terminal devices of power line carrier according to claim 4, which is characterized in that described The frequency range of the transmission signal of the more medium interconnecting terminal devices of power line carrier is between 1 megahertz to 100 megahertzs.
6. the more medium high-speed wideband interconnecting terminal devices of power line carrier according to claim 4, which is characterized in that described Power supply and Signal Exchange Processing device include also high pressure resistant capacitance, be serially connected in the telephone line interface or the coaxial line interface with Between winding in the coupling transformer.
7. the more medium high-speed wideband interconnecting terminal devices of power line carrier according to claim 1, which is characterized in that described Power supply and Signal Exchange Processing device also include:Power supply processing circuit;
The power interface also includes power supply power supply interface;
The power supply processing circuit is connect with the power interface and the power supply and Signal Exchange Processing device respectively, will be from described The power source transition of power interface input is at least one set of DC power supply needed for the Signal Exchange Processing device;The electricity of the input Source is AC power or DC power supply.
8. the more medium high-speed wideband interconnecting terminal devices of power line carrier according to any one of claim 1 to 7, special Sign is that the telephone line interface connection telephone wire or general twisted-pair power cable network connect at least one telephone wire or multiple twin gauze Mouthful;
The coaxial line interface connects generic coaxial gauze network, connects at least one coaxial line network interface;
The Ethernet interface connects Ethernet, connects at least one Ethernet interface.
CN201310027478.9A 2013-01-24 2013-01-24 The more medium high-speed wideband interconnecting terminal devices of power line carrier Expired - Fee Related CN103973520B (en)

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