CN103973520A - Power line carrier multi-medium high-speed broadband interconnection terminal device - Google Patents
Power line carrier multi-medium high-speed broadband interconnection terminal device Download PDFInfo
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Abstract
The invention relates to the field of power line, telephone line and coaxial line carrier communication equipment, and discloses a power line carrier multi-medium high-speed broadband interconnection terminal device. According to the power line carrier multi-medium high-speed broadband interconnection terminal device, network digital signals coming from an Ethernet interface are received and converted into analog signals, and the analog signals are output to a power line carrier interface, a telephone line interface or a coaxial line interface; or the analog signals coming from the power line carrier interface, the telephone line interface or the coaxial line interface are received and converted into the network digital signals, the network digital signals are output to the Ethernet interface and can be loaded on a telephone line, a coaxial line and a power line, and high-speed interconnection communication between double-line media such as the telephone line, the coaxial line and the power line and an Ethernet cable can be achieved. As communication is carried out with unified signal carrier frequencies on the transmission media, the problems of signal conflicts and signal coupling when the power line, the telephone line and the coaxial line are adopted for conducting communication are solved.
Description
Technical field
The present invention relates to power line, telephone wire, coaxial line carrier communication equipment field, particularly many media of power line carrier high-speed wideband interconnecting terminal device.
Background technology
Along with the fast development of Chinese national economy, the significantly raising of living standards of the people, Modern Family generally all can access high definition video network, telephone line network and broadband network, but Modern Family's finishing exists contradiction in applying with the home network of modern light velocity network:
1, being mainly used on television set of high-definition network video, does not have netting twine and television set is other, only has coaxial line and power line.
2, the application of VOIP needs network, may only have telephone wire in the place that is applicable to electric discharge phone, may there is no power line and netting twine
Ask condition for traditional network equipment, in the situation that there is no wiring, cannot solve the transmission problem of broadband HD video for above two kinds.
In addition, for some families, due to the development of information technology and the upgrading of network, coaxial line, telephone wire originally do not re-use, as simulated television has changed Web TV (IPTV) into, analog telephone changes the networking telephone (VOIP) etc. into, is a reality and rising technology for the efficient recycling of discarded coaxial line and telephone wire.
But there is following limitation in telephone wire, coaxial line, power line communication technology at present:
1, power line carrier communication terminal installation (Power Line Communication) is called for short " PLC ") can only rely on power line transmission data, and electric equipment on power line is complicated, disturb numerously, in particular surroundings, cannot meet the requirement of communication bandwidth and communication distance.
2, be carried in the main ADSL (Asymmetric Digital Subscriber Line) of carrier communication mode (AsymmetricDigital Subscriber Line on telephone wire, be called for short " ADSL ") mode, this technology limited bandwidth, cost is higher, be not suitable for the use in family broadband, particularly, in the application of current family HD video, cannot bring into play its potentiality.
3, the use of family coaxial cable is except being limited to watching of cable TV, in the cable television network transformation of also carrying out in some areas, the mode of transmitting ether data (Ethernet over Coax is called for short " EOC ") by coaxial cable has accessed family broadband, is bringing into play more effect.
Therefore, no matter be old-fashioned house or newly fit up house, no matter substantially local-style dwelling houses or Deluxe villa, finishing once always can not solve the requirement of all network Developments, under particularly the broadband network in light velocity epoch and the broadband of HD video require, need more quick, the broadband signal problem that needn't through wallsly hole, needn't rewiring just can solve more fast.
According to reality, integrate all utilizable broadband resource in family, meet broadband in family and require, reduce the total amount of electromagnetic radiation in family, reduce the use of wireless network as far as possible, but, adopt power line carrier communication, coaxial line carrier communication, line carrier wave communication inevitably to there will be the problem of signal conflict and signal coupling in power line, telephone wire, coaxial line.
Summary of the invention
The object of the present invention is to provide a kind of many media of power line carrier high-speed wideband interconnecting terminal device, solved signal conflict and signal coupling problem while adopting power line, telephone wire, coaxial line to communicate.
For solving the problems of the technologies described above, embodiments of the present invention provide a kind of many media of power line carrier high-speed wideband interconnecting terminal device, comprise: external interface, power supply and Signal Exchange Processing device; Described power supply is connected with described external interface with Signal Exchange Processing device;
Wherein, described external interface comprises: Ethernet interface and with any one or combination in any in lower interface: power line carrier interface, telephone line interface and coaxial line interface; Described telephone line interface is connected any cable with two call wires with coaxial line interface;
Described power supply and Signal Exchange Processing device receive the network digital signal from described Ethernet interface, convert network digital signal to analog signal, and export to any one or the interface of combination in any in lower interface: described power line carrier interface, described telephone line interface and described coaxial line interface; Or,
Described power supply and Signal Exchange Processing device receive the analog signal from the interface of any one or combination in any with in lower interface: described power line carrier interface, described telephone line interface and described coaxial line interface, and convert analog signal to network digital signal, and export described Ethernet interface to.
Embodiment of the present invention in terms of existing technologies, by receiving the network digital signal from Ethernet interface, converts network digital signal to analog signal, and exports power line carrier interface, telephone line interface or coaxial line interface to; Or receive the analog signal from power line carrier interface, telephone line interface or coaxial line interface, convert analog signal to network digital signal, and export Ethernet interface to, can, by signal loading on telephone wire, coaxial line, telephone wire, realize telephone wire, coaxial line, power line and mutual communication thereof.Because electrical characteristic and characteristics of signals on telephone wire, coaxial line and power line transmission medium are different, cannot direct interconnection between different transmission mediums, and produce signal conflict, affect normal signal transmission.The invention provides a kind of transmission medium coupling process and circuit of novelty, and use unified signal(-) carrier frequency on above-mentioned transmission medium, to carry out communication to have solved signal conflict and the signal coupling problem while adopting power line, telephone wire, coaxial line to communicate, and realize the high speed interconnected communication of the two-wire media such as power line, telephone wire, coaxial line, ethernet line.
In addition, described power supply and Signal Exchange Processing device comprise: signal coupling unit, CPU;
Described signal coupling unit is connected with described CPU, and is connected with any one or combination in any in described power line carrier interface, described telephone line interface, described coaxial line interface;
Described CPU is connected with described Ethernet interface.
By signal coupling mode, improve the transmission of signal between Ethernet, power line network, telephone line network and coaxial line network, can further solve signal conflict and signal coupling problem while adopting power line, telephone wire, coaxial line to communicate.
In addition, described CPU comprises: modulation /demodulation central authorities process subelement, signal is processed subelement, Ethernet processing subelement, Flash memory, Memory memory;
Described Ethernet is processed subelement and is processed the signal receiving from described Ethernet interface, and carries out the conversion between ethernet signal and the data of described adjustment demodulation central authorities processing subelement;
The central subelement of processing of described modulation /demodulation is encoded or is decoded signal, and coordinates the operating state between each module; The central subelement of processing of described modulation /demodulation directly connects described Flash memory and described Memory memory;
Described Flash memory is for storing central operating system and the running parameter of processing subelement of described modulation /demodulation, and described Memory memory is processed for described modulation /demodulation is central after subelement starts required dynamic data storage space is provided;
The front end that described signal is processed subelement directly connects described signal coupling circuit, and rear end directly connects the central subelement of processing of described modulation /demodulation, carries out the analog to digital-digital to analog converter between front end analog signal and rear end digital signal.
Pass through modulation-demodulation technique, according to the character of signal band, amplitude feature and the former application signal that can transmit at power line, telephone wire, coaxial line, the frequency band that selection can be used jointly and amplitude, on the basis that does not affect former application, carry out signal transmission, can realize comprehensive covering of home network.
In addition, described power supply and Signal Exchange Processing device also comprise: the safe isolated location of power line;
The safe isolated location of described power line is connected with described power line carrier interface and described signal coupling unit respectively.
Adopt the safe isolated location of power line, the forceful electric power in isolated preceding-terminal power line network and internal circuit of the present invention, protection interior arrangement is avoided outside forceful electric power and is disturbed, and meets and adopts the communication bandwidth of power line carrier communication and the requirement of communication distance.
In addition, described signal coupling unit is a coupling transformer;
Described coupling transformer is made up of a magnet ring and at least two group windings, and a value in the frequency range of signal transmission that frequency response parameter is described many media of power line carrier interconnecting terminal device is set;
Each group winding is formed around magnet ring by insulated conductor independently, wherein two taps in one group of winding are connected to two taps in described CPU, other windings and are connected respectively to corresponding in the safe isolated location of described power line or described external interface, and two taps of each winding only connect an interface circuit in described external interface.
By transformer coupled, the signal of telephone wire, coaxial line, power line is intercoupled, transmitted, because each group winding of coupling transformer is all that insulation is isolated, so the electric power composition outside direct current composition or frequency range in any one network can not be coupled in other network.
In addition, the safe isolated location of described power line comprises: input, fuse, piezo-resistance and safety electric capacity;
Described input has two lines, respectively with described power line carrier interface in live wire and zero line, or positive pole is connected with negative pole, the described fuse of connecting, described piezo-resistance in parallel, and after being connected in series safety electric capacity respectively on two lines, be connected in two taps of winding in described coupling transformer; Described safety electric capacity is to the signal in frequency range described in transparent transmission, signal and the voltage of isolated other frequencies, and exceeded while loading disconnection institute connecting circuit when external circuit.
The safe isolated location of power line adopts fuse, carries out overcurrent protection; Adopt piezo-resistance, carry out overvoltage protection; Adopt forceful electric power and the back-end circuit of safety Capacitor apart front end, realize protection internal circuit of the present invention, meet the object of the communication bandwidth of power line carrier communication and the requirement of communication distance.
In addition, described power supply and Signal Exchange Processing device also comprise high pressure resistant electric capacity, are serially connected between the winding in described telephone line interface or described coaxial line interface and described coupling transformer.Adopt the flip-flop in high pressure resistant Capacitor apart telephone wire/twisted-pair feeder or coaxial line network, can avoid the load power source impact in external network by guard signal coupling unit.
In addition, also comprise: Power supply interface and power supply processing circuit; Described Power supply interface and described power line carrier interface are referred to as power interface;
Described power supply processing circuit is connected with described power interface and described power supply and Signal Exchange Processing device respectively, will be at least one group of required DC power supply of described Signal Exchange Processing device from the power source transition of described power interface input; The power supply of described input is AC power, or DC power supply.
Provide the required various supplies of electric power of internal circuit in device of the present invention by power supply processing circuit, make this device adapt to various outside input powers, be convenient for people to use, be convenient to the popularization of product.
In addition, described telephone line interface connects telephone wire or general twisted-pair power cable network, connects at least one telephone wire or twisted-pair feeder network interface;
Described coaxial line interface connects common coaxial line network, connects at least one coaxial line network interface;
Described Ethernet interface connects Ethernet, connects at least one Ethernet interface.
By connect respectively multiple telephone wires or twisted-pair feeder network interface, coaxial line network interface, Ethernet interface at telephone line interface, coaxial line interface, Ethernet interface, can realize the interconnected of arbitrary network, further realize comprehensive covering of home network.
Brief description of the drawings
Fig. 1 is the schematic diagram of many media of power line carrier interconnecting terminal device of one preferred embodiments according to the present invention;
Fig. 2 is the schematic diagram that many media of power line carrier interconnecting terminal device connects two coaxial interfaces;
Fig. 3 is the structural representation of power supply and Signal Exchange Processing device;
Fig. 4 is the structural representation of CPU;
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 representation of signal coupling unit;
Fig. 8 is the safe isolated location schematic diagram of power line;
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.
Embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, the embodiments of the present invention are explained in detail.But, persons of ordinary skill in the art may appreciate that in the each execution mode of the present invention, in order to make reader understand the application better, many ins and outs are proposed.But, even without these ins and outs and the many variations based on following execution mode and amendment, also can realize the each claim of the application technical scheme required for protection.
Embodiments of the present invention relate to a kind of many media of power line carrier interconnecting terminal device, and this device comprises external interface, power supply and Signal Exchange Processing device, and power supply is connected with external interface with Signal Exchange Processing device, as shown in Figure 1.Power supply and Signal Exchange Processing device receive the network digital signal from Ethernet interface, convert network digital signal to analog signal, and export other external interfaces to; Or power supply and Signal Exchange Processing device receive the analog signal from other external interfaces, convert analog signal to network digital signal, and export Ethernet interface to.In the present invention, pass through modulation-demodulation technique, according to the character of signal band, amplitude feature and the former application signal that can transmit at power line, telephone wire, coaxial line, the frequency band that selection can be used jointly and amplitude, on the basis that does not affect former application, carry out signal transmission, select suitable frequency according to the feature of circuit, and arrange by software.And improve the coupling process of signal, and by transformer coupled, the signal of telephone wire, coaxial line, power line is intercoupled, transmitted, realize telephone wire, coaxial line, power line and mutual communication thereof.Because electrical characteristic and characteristics of signals on telephone wire, coaxial line and power line transmission medium are different, cannot direct interconnection between different transmission mediums, and produce signal conflict, affect normal signal transmission.The invention provides a kind of transmission medium coupling process and circuit of novelty, and use unified signal(-) carrier frequency on above-mentioned transmission medium, to carry out communication to have solved signal conflict and the signal coupling problem while adopting power line, telephone wire, coaxial line to communicate, and realize the high speed interconnected communication of the two-wire media such as power line, telephone wire, coaxial line, ethernet line.
Wherein, external interface comprises: Ethernet interface and with any one or combination in any in lower interface: power line carrier interface, telephone line interface and coaxial line interface.Specifically, external interface is power interface 101, telephone line interface 102, coaxial line interface 103, Ethernet interface 104, and wherein power interface provides Power supply interface and power line carrier interface.Telephone line interface connects telephone wire or general twisted-pair power cable network, connects at least one telephone wire or twisted-pair feeder network interface; Coaxial line interface connects common coaxial line network, connects at least one coaxial line network interface; Ethernet interface connects Ethernet, connects at least one Ethernet interface.That is to say, telephone line interface connects telephone wire or general twisted-pair power cable network, can connect a telephone wire or twisted-pair feeder network interface, also can be made up of multiple similar interfaces; Coaxial line interface connects common coaxial line network, can be made up of an interface or multiple interface; Ethernet interface connects Ethernet, can be made up of an interface or multiple interface.In above interface, Power supply interface and Ethernet interface are necessary, and it is necessary that power line carrier interface, telephone line interface, coaxial line are interfaced to rare one.In the time only having power line carrier interface, this device has been realized the interconnected communication of Ethernet and power line network; In the time only having telephone line interface, this device has been realized communicating by letter of Ethernet and telephone wire or twisted-pair wire net; In the time only having coaxial line interface, this device has been realized communicating by letter of Ethernet and coaxial line network; In the time that power line carrier interface is connected with telephone line interface simultaneously, this device has been realized the interconnected communication of Ethernet, power line network and telephone wire/twisted-pair wire net; In the time only having telephone line interface to be connected with coaxial line interface, this device has been realized the interconnected communication of Ethernet and telephone wire/twisted-pair wire net and coaxial line network simultaneously; In the time that power line carrier interface, telephone line interface are connected with coaxial line interface simultaneously, this device has been realized the interconnected communication of Ethernet, power line network and telephone wire/twisted-pair wire net and coaxial network.Figure 2 shows that coaxial interface is two or schematic diagram when above, its effect is equivalent to common three links: link of trade，travel and post interface, two outside ports in figure 201,202 are straight-through, are connected to an impedance matching circuit between outside port and internal port, guaranteed between signal, to have minimum decay.
The external interface of this device connects power supply and Signal Exchange Processing device, this power supply and Signal Exchange Processing device provide internal circuit required supply of electric power, realize the Coordination Treatment of the coupling of mutual contact mode, signal of diverse network and processing, multiple signal form of interface exchange, various parts etc., as shown in specific implementation parts as inner in accompanying drawing 3 dotted line frames.Power supply and Signal Exchange Processing device comprise: signal coupling unit, CPU; CPU is connected with Ethernet interface, signal coupling unit is connected with CPU, and be connected with any one or combination in any in power line carrier interface, telephone line interface, coaxial line interface, determine according to the concrete external interface of the device of present embodiment.
CPU provides and being connected of signal coupling unit and Ethernet interface, and signal is processed and coordinated, further comprise: modulation /demodulation central authorities process subelement, signal is processed subelement, Ethernet processing subelement, Flash memory, Memory memory, as shown in Figure 4, modulation /demodulation CPU is the heart of complete machine, the operation of management complete machine, Ethernet processes subelement and signal processing subelement is worked under it is coordinated.Modulation /demodulation central authorities processing subelement, signal processing subelement, Ethernet are processed subelement, Flash, Memory can be implemented in same chips, also can independently exist.Specifically, Ethernet is processed subelement and is processed the signal receiving from Ethernet interface, and carries out ethernet signal and adjust the conversion between the central data of processing subelement of demodulation; Modulation /demodulation central authorities process subelement signal are encoded or decoded, and coordinate the operating state between each module; Modulation /demodulation central authorities process subelement and directly connect Flash memory and Memory memory; Flash memory is processed operating system and the running parameter of subelement for storing modulation /demodulation central authorities, Memory memory provides required dynamic data storage space for modulation /demodulation central authorities process after subelement starts; The front end that signal is processed subelement directly connects signal coupling circuit, rear end directly connects modulation /demodulation central authorities and processes subelement, carry out the analog to digital-digital to analog converter between front end analog signal and rear end digital signal, formed by sending and receiving two parts, the digital signal of modulation /demodulation central authorities being processed to subelement transfers to and can send in telephone wire, coaxial line, the defeated analog signal of phone line, the analog signal receiving is changed into digital signal simultaneously and is sent to modulation /demodulation central authorities processing subelement.In addition, because Ethernet interface can be made up of one or more network interface, also individual ethernet network interface or multiple Ethernet interface are carried out to timesharing connection and coordinated manipulation so Ethernet is processed subelement, make multiple Ethernet interface data and modulation /demodulation central authorities processing subelement carry out the swap operation of data.That is to say, Ethernet unit is made up of a phy chip (PHY) and network interface, also can, by multiple network interfaces and corresponding PHY Ethernet exchanging the electric circuit constitute, connect and use.Figure 5 shows that the schematic diagram of Ethernet processing unit circuit, this element circuit can make single port or multiport Ethernet carry out exchanges data and communicate by letter with modulation /demodulation CPU.
Signal coupling unit provides the connected mode of power line, telephone wire/twisted-pair feeder, coaxial line and CPU, be illustrated in figure 6 the graphical diagram of signal coupling unit, represent that this unit is a coupling transformer, realized signal from being of coupled connections between winding 1 and winding 2,3,4, concrete realization as shown in Figure 7.Coupling transformer is made up of a magnet ring 700 and many group windings, and frequency response parameter is set to the frequency range of the signal transmission of present embodiment, frequency range in for example, one or more different intervals between 1MHz to 100MHz, or in 1MHz to 100MHz scope.Each group winding is formed around magnet ring by insulated conductor independently, wherein two taps in one group of winding are connected to two taps in CPU, other windings and are connected respectively to corresponding in the safe isolated location of power line or external interface, and two taps of each winding only connect an interface circuit in external interface.Such as winding 701 connects CPU, winding 702 connects the safe isolated location of power line, and winding 703 connects telephone wire Processing Interface, and winding 704 connects coaxial line Processing Interface.By transformer coupled, the signal of telephone wire, coaxial line, power line is intercoupled, transmitted, because each group winding is all that insulation is isolated, so the electric power composition outside direct current composition or frequency range in any one network can not be coupled in other network.The number of windings is at least two groups, also can three groups, four groups, five group, and concrete the number networks optionally connecting and determining.Winding can be 2 groups (1:1), 3 groups (1:1:1), 4 groups (1:1:1:1), 5 groups (1:1:1:1:1) according to different application forms, the application with for different:
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 telephone wire;
4 groups (1:1:1:1), 5 groups (1:1:1:1:1): power line, coaxial line, telephone wire;
In addition, power supply and Signal Exchange Processing device also comprise: the safe isolated location of power line; The safe isolated location of power line is connected with power line carrier interface and signal coupling unit respectively, and the safe isolation method of outside forceful electric power and device is provided.As shown in Figure 8, the safe isolated location of power line comprises: input 801, fuse 802, piezo-resistance 803 and safety electric capacity 804; Input has two lines, respectively with power line carrier interface in live wire and zero line, or anodal be connected with negative pole, series connection fuse, piezo-resistance in parallel, and after being connected in series safety electric capacity respectively on two lines, be connected in two taps 805 of winding in coupling transformer.That is to say, port L and N are connected to respectively live wire and zero line (AC-powered) or anodal and the negative pole (powered by direct current) of power line, are connected in series a fuse, for overcurrent protection; Piezo-resistance in parallel, for overvoltage protection, is embodied in the time that input power is greater than rated value, and piezo-resistance conducting, bleeds off the electric charge that exceeds the quata, and has protected interior arrangement; On two wires, at two safety electric capacity of serial connection, for forceful electric power and the back-end circuit of isolated preceding-terminal, solve the safety problem with the coupling of power line; When after the electric current and voltage off-rating of front end power supply, safety electric capacity disconnects at once, protective device internal circuit.In addition, the signal in this safety electric capacity transparent transmission frequency range, signal and voltage outside isolated frequency range, to reach the object of isolation signals.
Power supply and Signal Exchange Processing device also comprise high pressure resistant electric capacity 901; as shown in Figure 9; be serially connected between the winding 903 in telephone line interface or coaxial line interface 902 and coupling transformer; for isolating the flip-flop of telephone wire/twisted-pair feeder or coaxial line network, guard signal coupling unit is avoided the load power source impact in external network.
Power supply processing circuit provides the required various supply of electric power modes of installing.Power supply processing circuit is connected with power interface and power supply and Signal Exchange Processing device respectively, will be at least one group of required DC power supply of Signal Exchange Processing device from the power source transition of power interface input; The power supply of input is AC power, or DC power supply.In reality realizes; it can be Switching Power Supply; input 85 ~ 265V exchanges, direct current all can; be output as 12V, 5V, 3.3V etc.; mainly comprise protection, isolation, rectification, filtering, switch module, transformer and feedback loop composition; for complete machine power supply, as shown in figure 10, its effect is that input power is changed into one or more groups required different voltage of circuit and the DC power supply of power.Power supply input can be AC power, also can be DC power supply; With respect to DC power supply, when AC power is input power, this unit need to carry out transformation and rectification processing to AC power.
In reality realizes, complete machine outside is mainly made up of attaching plug (or socket), network interface (RJ45), telephony interface (RJ11), coaxial mouthful (BNC connector), indicator light, button etc., the signal designations such as indicator light difference corresponding power, Ethernet, signal (two lamp three looks), button Main Function is networking, logout and recovery factory state etc.
Device of the present invention can pass through separately power line communication; Can communicate by letter by telephone wire separately; Can communicate by letter by coaxial line separately; Also can pass through power line, telephone communication mixing; Also can be by, power line, coaxial line mixed communication; Also can pass through coaxial line, telephone wire mixed communication; Can also carry out mixed communication by coaxial line, telephone wire, three kinds of lines of power line, therefore, device of the present invention can bring following effect:
1, can realize comprehensive covering of home network by device of the present invention: have electric place just to have network, have the place of telephone wire just to have network, have the place of coaxial line (tv line) just to have network.Substantially covered all positions of home network application, no matter common online, or the networking telephone, Internet video, or HD video, can satisfactorily resolve.
2, for also application telephone wire and axis, in the situation that not affecting former function, increased the function of new transmission broadband.Increase the value of circuit, reduced new network layout, reduced decoration cost, saved Master Cost, accomplished the multiplexing of resource.
3, for some families, because upgrading (mobile phone and the networking telephone, cost the is lower) telephone wire of phone does not re-use.Due to the development (as the high definition IPTV of telecommunications) of Web TV, coaxial line has not re-used.Telephone wire in these families, coaxial line, without any effect, belong to discarded object, by this invention, these utilizations of resources are got up, and have solved the practical problem in family.
Persons of ordinary skill in the art may appreciate that the respective embodiments described above are to realize specific embodiments of the invention, and in actual applications, can do various changes to it in the form and details, and without departing from the spirit and scope of the present invention.
Claims (11)
1. many media of power line carrier high-speed wideband interconnecting terminal device, is characterized in that, comprises: external interface, power supply and Signal Exchange Processing device; Described power supply is connected with described external interface with Signal Exchange Processing device;
Wherein, described external interface comprises: Ethernet interface and with any one or combination in any in lower interface: power interface, telephone line interface and coaxial line interface; Described power interface comprises power line carrier interface; Described telephone line interface is connected any cable with two call wires with coaxial line interface;
Described power supply and Signal Exchange Processing device receive the network digital signal from described Ethernet interface, convert network digital signal to analog signal, and export to any one or the interface of combination in any in lower interface: described power line carrier interface, described telephone line interface and described coaxial line interface; Or,
Described power supply and Signal Exchange Processing device receive the analog signal from the interface of any one or combination in any with in lower interface: described power line carrier interface, described telephone line interface and described coaxial line interface, and convert analog signal to network digital signal, and export described Ethernet interface to.
2. many media of power line carrier high-speed wideband interconnecting terminal device according to claim 1, is characterized in that, described power supply and Signal Exchange Processing device comprise: signal coupling unit, CPU;
Described signal coupling unit is connected with described CPU, and is connected with any one or combination in any in described power line carrier interface, described telephone line interface, described coaxial line interface;
Described CPU is connected with described Ethernet interface.
3. many media of power line carrier high-speed wideband interconnecting terminal device according to claim 2, it is characterized in that, described CPU comprises: modulation /demodulation central authorities process subelement, signal is processed subelement, Ethernet processing subelement, Flash memory, Memory memory;
Described Ethernet is processed subelement and is processed the signal receiving from described Ethernet interface, and carries out the conversion between ethernet signal and the data of described adjustment demodulation central authorities processing subelement;
The central subelement of processing of described modulation /demodulation is encoded or is decoded signal, and coordinates the operating state between each module; The central subelement of processing of described modulation /demodulation directly connects described Flash memory and described Memory memory;
Described Flash memory is for storing central operating system and the running parameter of processing subelement of described modulation /demodulation, and described Memory memory is processed for described modulation /demodulation is central after subelement starts required dynamic data storage space is provided;
The front end that described signal is processed subelement directly connects described signal coupling circuit, and rear end directly connects the central subelement of processing of described modulation /demodulation, carries out the analog to digital-digital to analog converter between front end analog signal and rear end digital signal.
4. many media of power line carrier high-speed wideband interconnecting terminal device according to claim 3, it is characterized in that, described Ethernet is processed subelement and also individual ethernet network interface or at least two Ethernet interfaces is carried out to timesharing connection and coordinated manipulation, makes at least two Ethernet interface data and described modulation /demodulation central authorities processing subelement carry out the swap operation of data.
5. many media of power line carrier high-speed wideband interconnecting terminal device according to claim 2, is characterized in that, described power supply and Signal Exchange Processing device also comprise: the safe isolated location of power line;
The safe isolated location of described power line is connected with described power line carrier interface and described signal coupling unit respectively.
6. many media of power line carrier high-speed wideband interconnecting terminal device according to claim 5, is characterized in that, described signal coupling unit is a coupling transformer;
Described coupling transformer is made up of a magnet ring and at least two group windings, and a value in the frequency range of signal transmission that frequency response parameter is described many media of power line carrier interconnecting terminal device is set;
Each group winding is formed around magnet ring by insulated conductor independently, wherein two taps in one group of winding are connected to two taps in described CPU, other windings and are connected respectively to corresponding in the safe isolated location of described power line or described external interface, and two taps of each winding only connect an interface circuit in described external interface.
7. many media of power line carrier high-speed wideband interconnecting terminal device according to claim 6, is characterized in that, the frequency range of the signal transmission of described many media of power line carrier interconnecting terminal device is between 1 megahertz to 100 megahertz.
8. many media of power line carrier high-speed wideband interconnecting terminal device according to claim 6, is characterized in that, the safe isolated location of described power line comprises: input, fuse, piezo-resistance and safety electric capacity;
Described input has two lines, respectively with described power line carrier interface in live wire and zero line, or positive pole is connected with negative pole, the described fuse of connecting, described piezo-resistance in parallel, and after being connected in series safety electric capacity respectively on two lines, be connected in two taps of winding in described coupling transformer.
9. many media of power line carrier high-speed wideband interconnecting terminal device according to claim 6, it is characterized in that, described power supply and Signal Exchange Processing device also comprise high pressure resistant electric capacity, are serially connected between the winding in described telephone line interface or described coaxial line interface and described coupling transformer.
10. many media of power line carrier high-speed wideband interconnecting terminal device according to claim 1, is characterized in that, described power supply and Signal Exchange Processing device also comprise: power supply processing circuit;
Described power interface also comprises Power supply interface;
Described power supply processing circuit is connected with described power interface and described power supply and Signal Exchange Processing device respectively, will be at least one group of required DC power supply of described Signal Exchange Processing device from the power source transition of described power interface input; The power supply of described input is AC power, or DC power supply.
11. according to many media of the power line carrier high-speed wideband interconnecting terminal device described in any one in claim 1 to 10, it is characterized in that, described telephone line interface connects telephone wire or general twisted-pair power cable network, connects at least one telephone wire or twisted-pair feeder network interface;
Described coaxial line interface connects common coaxial line network, connects at least one coaxial line network interface;
Described Ethernet interface connects Ethernet, connects at least one Ethernet interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310027478.9A CN103973520B (en) | 2013-01-24 | 2013-01-24 | The more medium high-speed wideband interconnecting terminal devices of power line carrier |
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| CN106209389A (en) * | 2016-08-31 | 2016-12-07 | 博为科技有限公司 | Supplying communication system based on G.x agreement and communication means |
| CN106452509A (en) * | 2015-08-07 | 2017-02-22 | 波音公司 | Coupler for power line communication and power-over-ethernet |
| CN106685483A (en) * | 2017-02-10 | 2017-05-17 | 北京智芯微电子科技有限公司 | System for coupling carrier null lines of broadband power lines of power distribution areas |
| CN114665922A (en) * | 2019-09-29 | 2022-06-24 | 华为数字能源技术有限公司 | Interface circuit, group string and system applied to power line communication |
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| CN103973520B (en) | 2018-09-11 |
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