CN101056181A - Two-line cable power supply device, power receiving device, system and method - Google Patents
Two-line cable power supply device, power receiving device, system and method Download PDFInfo
- Publication number
- CN101056181A CN101056181A CN 200710064102 CN200710064102A CN101056181A CN 101056181 A CN101056181 A CN 101056181A CN 200710064102 CN200710064102 CN 200710064102 CN 200710064102 A CN200710064102 A CN 200710064102A CN 101056181 A CN101056181 A CN 101056181A
- Authority
- CN
- China
- Prior art keywords
- coupled end
- data
- signal
- power supply
- isolation network
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
The invention discloses a two-wire cable power supply device, consists of the power supply equipment and the first data coupling terminal and the second data coupling terminal respectively connected with it; an isolating network shall be connected in series between the first data coupling terminal and the second data coupling terminal for isolating the DC power supply signals uploaded by the first data coupling terminal and the second data coupling terminal, ensure the first data coupling terminal and the second data coupling terminal respectively output the positive and negative signals of DC power supply. The invention still discloses a two-wire cable power supply method, a two-wire cable powered device, a two-wire cable powered method and a power supply system and method with the two-wire cable. With the device, system and method disclosed in the invention, expand the application scope of PoE technology.
Description
Technical field
The present invention relates to be used for the power supply conversion equipment field of power supply, particularly a kind of two-line cable electric supply installation, current-collecting device and system and corresponding method.
Background technology
Universal day by day along with the network terminal, the defective that adopts traditional cable that the network terminal is powered also shows especially day by day, for example in building, carry out WLAN (wireless local area network) (Wireless Local-area Network, be called for short WLAN) deployment the time, session point (Access Point, abbreviation AP) best infield is on ceiling, but carrying out electric wire on ceiling lays, require to lay separately power line on the one hand, require to meet the standard of aspect such as safety on the other hand, then want to reach fully this standard, need the quite high expense of cost.In order to overcome the defective of independent cloth payout, Power over Ethernet (Power overEthernet is called for short PoE) technology is arisen at the historic moment.
Existing P oE technology, defined by the ieee standard committee formal IEEE802.3af-2003 standard of issuing of in June, 2003, by the Ethernet electrical interface, via 4 pairs of Shielded Twisted Pairs (STP) netting twine that meets the ISO/IEC11801-2000 standard, the data terminal equipment is powered, referring to Fig. 1, it is a typical PoE networking schematic diagram, in distribution cabinet, keep Ethernet switch equipment, power supply is provided for the twisted-pair feeder of local area network (LAN) with a charged source power supply hub (HUB), at the end of twisted-pair feeder, this power supply is used for driving phone, wireless local network connecting point AP, Bluetooth accessing point and network cameras and miscellaneous equipment.On specific implementation, Ethernet electrical interface connector has 8 pin pins, pin one/2,3/6,4/5,7/8 differential lines that respectively partners wherein, IEEE802.3 allows two kinds of 4 pairs of twisted-pair feeder method of supplying power to: one, transmit power supply by pin one/2,3/6, being called terminal cross-over connection method (End-Span), is to transmit direct current simultaneously on the used heart yearn of transmission data, and the frequency different with the Ethernet data signal adopted in its transmission of electricity; Its two, transmit power supply by pin 4/5,7/8, be called mid-span method (Mid-Span), use the dead pair that is not used in the netting twine to transmit direct current.Because Ethernet data adopts common line right with transmission of electricity, thereby does not need independently to be provided with the industrial siding of transmission of electricity, such as, 18 core netting twine of laying can be realized transfer of data and the supply of electric power of WLAN between AP and machine room switch.As can be seen,, both saved the layout of power line, and reduced difficulty of construction and saved expense, realized the centralized management function of data, power supply simultaneously, for the maintenance and management in later stage has brought convenience along with the introducing of PoE technology.Referring to Fig. 2, it is a PoE system circuit diagram of powering by 1/2,3/6 line, wherein, power supply power supply unit (Power Soucing Equipment is called for short PSE) utilizes 10base-T, 100BASE-TX, 1000BASE-T interface, on link section, seek power supply receiver (Powered Device, be called for short PD), detect PD and classification, power to link, monitor chain circuit power supply and remove power supply, and PD is directly powered from the PSE termination from link.
But what present PoE technology was supported is to transmit power supply power supply unit signal by 4 pairs of twisted-pair feeder shielding netting wires that meet ISO/IEC 11801-2000 standard, and this just means that the user can only adopt netting twine to power in actual use.Obviously, if can be by two-line cable, the cable that for example utilizes the telephone wire cable or meet " YD/T 322-1996 copper core polyolefin insulating is moulded the composite sheath city communication cable " standard carries out the terminal power supply, then can enlarge PoE The Application of Technology occasion and scope effectively, also not have similar scheme in the prior art.
Summary of the invention
The purpose of this invention is to provide a kind of two-line cable electric supply installation, current-collecting device, system and method, solve the limitation problem that to carry out power devices in the prior art by netting twine.
For achieving the above object, embodiments of the invention provide a kind of two-line cable electric supply installation, comprise a PSE and the first data coupled end that is connected with PSE respectively and the second data coupled end; Serial connection one is every the straight-through isolation network of handing between the described first data coupled end and the second data coupled end, be used to isolate the dc power supply signal of described first data coupled end and the loading of the second data coupled end, make the described first data coupled end and the second data coupled end export dc power supply positive and negative electrode signal respectively.
Embodiments of the invention also provide a kind of two-line cable method of supplying power to, may further comprise the steps:
After the dc power supply signal that loads on the first data coupled end and the second data coupled end was isolated by isolation network, its positive and negative electrode signal was respectively by described first data coupled end and the output of the second data coupled end.
Embodiments of the invention also provide a kind of two-line cable current-collecting device, comprise a PD and the first signal coupled end and the secondary signal coupled end that are connected with described PD respectively; It is characterized in that serial connection one is every the straight-through isolation network of handing between described first signal coupled end and the secondary signal coupled end, be used to isolate the dc power supply signal of described first signal coupled end and the reception of secondary signal coupled end, make described first signal coupled end and secondary signal coupled end that dc power supply positive and negative electrode signal is provided respectively.
Embodiments of the invention also provide a kind of two-line cable to be subjected to method for electrically, may further comprise the steps:
The first signal coupled end and secondary signal coupled end send to PD and realize direct current supply after isolating reception dc power supply positive and negative electrode signal by isolation network.
Embodiments of the invention also provide a kind of system by two-line cable realization power supply, comprising:
Electric supply installation is used to load the dc power supply signal, and isolates output dc power supply positive and negative electrode signal by first isolation network;
Two-line cable, an end connects electric supply installation, and the other end connects current-collecting device, is used for the transmission of dc power supply positive and negative electrode signal;
Current-collecting device is used to receive the dc power supply signal, and provides dc power supply positive and negative electrode signal to realize direct current supply by the isolation of second isolation network.
Embodiments of the invention also provide a kind of method by two-line cable realization power supply, may further comprise the steps:
Electric supply installation loads the dc power supply signal;
Isolate described dc power supply positive and negative electrode signal by first isolation network;
Described dc power supply positive and negative electrode signal is exported by two-line cable;
Current-collecting device receives the dc power supply signal;
Realize direct current supply by the second isolation network isolated DC power supply positive and negative electrode signal.
As shown from the above technical solution, embodiments of the invention are handed over every straight-through by isolation network is set, and adopt two-line cable to carry out data, power delivery, have the beneficial effect of expansion PoE technology range of application and occasion.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of drawings
Fig. 1 is a typical PoE networking schematic diagram;
Fig. 2 is a PoE system circuit diagram of powering by 1/2,3/6 line;
Fig. 3 is the circuit diagram of two-line cable electric supply installation embodiment 1;
Fig. 4 is the circuit diagram of two-line cable electric supply installation embodiment 2;
Fig. 5 is the circuit diagram of two-line cable current-collecting device embodiment 1;
Fig. 6 is the circuit diagram of two-line cable current-collecting device embodiment 2;
Fig. 7 is a circuit diagram of realizing the system embodiment 1 of power supply by two-line cable;
Fig. 8 is a circuit diagram of realizing the system embodiment 2 of power supply by two-line cable.
Embodiment
In order to overcome the limitation that can only carry out the terminal power supply in the existing PoE technology by 4 pairs of twisted-pair cables, embodiments of the invention provide a kind of electric supply installation and current-collecting device and system by two-line cable realization power supply, are described respectively below.
For convenience of description, in the description of the embodiment of the invention, all embody in circuit diagram as the device of coupled end, but it will be appreciated by those skilled in the art that the device of coupled end can be any device that can play coupling effect with coil.
The two-line cable electric supply installation that the embodiment of the invention provided comprises a power supply power supply unit and the first data coupled end that is connected with described power supply power supply unit respectively and the second data coupled end; Serial connection one is every the straight-through isolation network of handing between the described first data coupled end and the second data coupled end, be used to isolate the dc power supply signal of described first data coupled end and the loading of the second data coupled end, make the described first data coupled end and the second data coupled end export dc power supply positive and negative electrode signal respectively, then the user introduces this electric supply installation in existing PoE equipment, can be implemented in the output of dc power supply signal is provided on the binary system cable (such as Telephone Cable).
Because the function of isolation network is to hand over every straight-through, therefore AC differential signal waiting for transmission can form the normal signal loop by isolation network in the first and second data coupled end coils, carry out the transmission of AC signal, therefore the electric supply installation that the embodiment of the invention provided is providing beyond the DC power supply, can also carry out the transmission of data-signal, be specially electric supply installation and also comprise data input coupled end, be used to receive differential data signals; The described first data coupled end and the second data coupled end and the coupling of described data input coupled end, the interchange data-signal that coupling is obtained forms signal circuit by described isolation network, thereby has guaranteed to exchange the normal transmission of data-signal.
As shown in Figure 3, be the circuit diagram of two-line cable electric supply installation embodiment 1, comprise data inputs coupled end 11, one PSE12, the isolation network 15 that the first data coupled end, 13, the second data coupled end 14 and being used for are handed over every straight-through.
Wherein, PSE12 is the power supply power supply unit, and its function is current-collecting device classification and power supply for detecting current-collecting device, the monitoring power supply power supply state, and this is consistent with prior art.
But unlike the prior art be, in an embodiment of the present invention, two holding wire 11a of data input coupled end 11 are respectively applied for the both positive and negative polarity that is connected differential data signals with 11b, that is 11 of coupled end of data inputs can accept is the interchange data-signal input of two-wire system, so that outside power supply, the AC signal of output also can satisfy the requirement of two-wire system transmission; Therefore, before exchanging data-signal input data input coupled end 11, must transform, specifically can finish by adopting signal to transform chip to four line signals of the prior art.Other annexation between each part of electric supply installation that present embodiment 1 is provided is:
The anodal 12a of described PSE12 is connected with the first data coupled end 13, the negative pole 12b of described PSE12 is connected with the second data coupled end 14, be used to provide the dc power supply signal, and send by the holding wire of the first data coupled end 13 and the second data coupled end 14, realize the function of supplying power of electric supply installation; The described first data coupled end 13 is coupled with described data input coupled end 11 respectively with the described second data coupled end 14, is used for coupling and obtains the interchange data-signal, and send by holding wire, realizes the middle rotating function of the interchange data-signal of electric supply installation; A holding wire 13a of the described first data coupled end 13 is used for being connected every the straight-through isolation network of handing over 15 by one with a holding wire 14a of the described second data coupled end 14; Another root holding wire 14b of another root holding wire 13b of the described first data coupled end 13 and the described second data coupled end 14 is used for output AC data-signal and dc power supply signal respectively.
As can be seen, data coupled end adding isolation network in electric power system carries out handing over every straight-through, realized the both positive and negative polarity isolation of dc power supply signal between the first and second data coupled end coils, and AC differential signal waiting for transmission forms the normal signal loop by isolation network 15 in the first and second data coupled end coils, carries out the transmission of AC signal.Obviously, the user introduces isolation network 15 in existing PoE equipment, has realized providing on binary system cable (such as Telephone Cable) output of dc power supply signal, is embodied in this electric supply installation embodiment 1, is exactly by 13b and 14b output.
Further, in this electric supply installation embodiment 1, the anodal 12a of described PSE12 is connected in the middle part of the first data coupled end 13, and the negative pole 12b of described PSE12 is connected in the middle part of the second data coupled end 14, reaches the purpose that does not influence transfer of data.
Simultaneously, in this electric supply installation embodiment 1, described isolation network 15 can be capacitor element or optocoupler, and coupled end is a transformer, carries out the coupled transfer of signal.
As shown in Figure 4, be the circuit diagram of two-line cable electric supply installation embodiment 2, be that described data input coupled end 11 comprises first data input coupled end 111 and second data input coupled end 112 with embodiment 1 distinguishes to some extent; Described first data input coupled end 111 and 13 couplings of the described first data coupled end, described second data input coupled end 112 and 14 couplings of the described second data coupled end; A holding wire 111a of described first data input coupled end 111 and a holding wire 112a of second data input coupled end 112 are used for being connected every the straight-through isolation network of handing over 113 by another, another root holding wire 112b of another root holding wire 111b of described first data input coupled end 111 and second data input coupled end 112 is equivalent to holding wire 11a and the 11b among the embodiment 1 respectively, is respectively applied for the both positive and negative polarity that connects differential data signals.
In electric supply installation embodiment 2, adopt isolation network 113 that coupled apparatus is separated into two, do not influence reception, and each coupled apparatus can be realized independent adjusting to the transmission AC signal.
The present invention also provides a kind of embodiment of two-line cable method of supplying power to, may further comprise the steps:
After the dc power supply signal that loads on the first data coupled end and the second data coupled end was isolated by isolation network, its positive and negative electrode signal was respectively by described first data coupled end and the output of the second data coupled end.The equipment that then receives signal can obtain the support of power supply by two-line cable,
Realizing outside the power supply by this method, can also pass through the first data coupled end and the second data coupled end and the coupling of data input coupled end, thereby obtain the interchange data-signal.The signal of importing this data input coupled end can be by the netting twine input after the two-wire system converting unit be converted to the two-wire system input, also can import as the telephone wire cable directly by the cable that meets " YD/T 322-1996 copper core polyolefin insulating is moulded the composite sheath city communication cable " standard; Then the first data coupled end is obtained with its coupling with the second data coupled end and is exchanged data-signal, forms signal circuit by isolation network, and exports through two-line cable.
As can be seen, the data coupled end is output AC data-signal and dc power supply signal simultaneously, and as can be seen, the equipment that receives signal both can obtain the support of power supply, also can obtain data content.
Embodiments of the invention also provide a kind of two-line cable current-collecting device, comprise a PD and the first signal coupled end and the secondary signal coupled end that are connected with described PD respectively; Serial connection one is every the straight-through isolation network of handing between described first signal coupled end and the secondary signal coupled end, be used to isolate the dc power supply signal of described first signal coupled end and the reception of secondary signal coupled end, make described first signal coupled end and secondary signal coupled end that dc power supply positive and negative electrode signal is provided respectively.As can be seen,, make the dc power supply signal that receives be unlikely to form signal circuit, and then offer PD, realize power supply support terminal by isolation network.Then the user introduces this current-collecting device in existing PoE equipment, can realize obtaining two-line cable (such as Telephone Cable) the dc power supply signal that provides.
Because two-line cable can transmit the interchange data-signal simultaneously, therefore current-collecting device can also comprise data output coupled end, with described first signal coupled end and the coupling of secondary signal coupled end, obtain the described first signal coupled end received and formed by described isolation network signal circuit with the secondary signal coupled end the data-signal that exchanges.
As shown in Figure 5, be the circuit diagram of two-line cable current-collecting device embodiment 1, comprise data output coupled end 21, one PD22, the first signal coupled end 23 and secondary signal coupled end 24, and be used for every the isolation network 25 that leads directly to friendship.
Wherein, the annexation between each part of current-collecting device is:
A holding wire 23b of the described first signal coupled end 23 and a holding wire 24b of secondary signal coupled end 24 are respectively applied for two-line cable and are connected, and receive the input that exchanges data-signal and dc power signal; Another root holding wire 23a of the described first signal coupled end 23 and another root holding wire 24a of secondary signal coupled end 24 are connected by isolation network 25 respectively; Current-collecting device one end is introduced isolation network 25 in existing PoE technology, has realized two-wire system but not the reception of 4 pairs of twisted-pair feeder signals.
The holding wire 22a of described PD22 is connected with the first signal coupled end 23, and another root holding wire 22b of described PD22 is connected with secondary signal coupled end 24, is used to current-collecting device that dc power supply is provided; One data output coupled end 21, with described first signal coupled end 23 and 24 couplings of secondary signal coupled end, two holding wire 21a, 21b of described data output coupled end 21 are used to current-collecting device that the interchange data-signal is provided.
As can be seen, adding isolation network 25 in the signal coupled end that is subjected to electric system carries out handing over every straight-through, realized that the dc power signal of being imported is carried out both positive and negative polarity isolates, and the AC differential signal of being imported forms the normal signal loop by isolation network 25, carries out the further coupling of AC signal and data output coupled end 21.Obviously, the user carries out the transformation of current-collecting device according to the technical scheme that this current-collecting device embodiment 1 is provided, just can directly obtain the dc power supply signal from existing two-wire system cable (such as Telephone Cable), being embodied in present embodiment 1, is exactly by 23b and 24b input dc power supply signal and AC signal.
In this current-collecting device embodiment 1, a kind of concrete annexation of PD22 and the first signal coupled end 23 and secondary signal coupled end 24 also is provided: the holding wire 22a of described PD22 is connected in a holding wire 23a of the first signal coupled end 23, and this holding wire 23a is the holding wire that the first signal coupled end 23 is connected in isolation network 25; Another root holding wire 22b of described PD22 is connected in a holding wire 24a of secondary signal coupled end 24, and this holding wire 24a is the holding wire that secondary signal coupled end 24 is connected in isolation network 25.Those skilled in the art are to be understood that, the PD22 and the first signal coupled end 23 and secondary signal coupled end 24 can adopt other annexation equally, middle part such as being connected to the first signal coupled end 23 and secondary signal coupled end 24 can not influence technical scheme of the present invention.
Simultaneously, in this current-collecting device embodiment 1, described isolation network 15 can be capacitor element or optocoupler, and coupled end is a transformer, carries out the coupled transfer of signal.
As shown in Figure 6, be the circuit diagram of two-line cable current-collecting device embodiment 2, be that described data output coupled end 21 comprises first data output coupled end 211 and second data output coupled end 212 with embodiment 1 distinguishes to some extent; Described first data output coupled end 211 and 23 couplings of the described first signal coupled end, described second data output coupled end 212 and described secondary signal coupled end 24 couplings; A holding wire 211a of described first data output coupled end 211 and a holding wire 212a of second data output coupled end 212 are used for being connected every the straight-through isolation network of handing over 213 by another, another root holding wire 212b of another root holding wire 211b of described first data output coupled end 211 and second data output coupled end 212 is equivalent to holding wire 21a and the 21b among the embodiment 1 respectively, is used to current-collecting device that the interchange data-signal is provided.
In current-collecting device embodiment 2, adopt isolation network 213 that coupled apparatus is separated into two, do not influence coupling, and each coupled apparatus can be realized independent adjusting to AC signal in the signal coupled end.
Embodiments of the invention also provide a kind of two-line cable to be subjected to method for electrically, may further comprise the steps:
The first signal coupled end and secondary signal coupled end send to PD and realize direct current supply after isolating reception dc power supply positive and negative electrode signal by isolation network.In being subjected to method for electrically embodiment, the dc power supply signal after the separation is provided for PD, is used to power receiving equipment that power supply is provided; Realizing by this method outside the power supply, can also comprise that data output coupled end and the first signal coupled end and secondary signal coupled end are coupled, obtaining the interchange data-signal, thereby providing the practical communication content for power receiving equipment.
Embodiments of the invention also provide a kind of system by two-line cable realization power supply, as shown in Figure 7, and for realize the circuit diagram of the system embodiment 1 of power supply by two-line cable; Comprise:
Two-line cable 3, such as common telephone wire etc., an end connects electric supply installation 1, and the other end connects current-collecting device 2, is used for the transmission of dc power supply positive and negative electrode signal;
Current-collecting device 2 is connected with electric supply installation 1 by described two-line cable 3, is used to receive the dc power supply signal, and provides dc power supply positive and negative electrode signal by 25 isolation of second isolation network, realizes direct current supply.
For the support to Content of Communication is provided, described electric supply installation also is used to receive described differential data signals, and coupling is obtained and exchanged data-signal and pass through two-line cable 3 outputs; Described current-collecting device 2 also is used for obtaining described interchange data-signal by two-line cable 3 receptions and coupling.Then for the part terminal, during as current-collecting device, can receive simultaneously and utilize to exchange data-signal and dc power signal, and for other terminals, such as portable terminal, what can utilize only be power supply signal such as IP phone; For these terminals, even without netting twine, as long as there is telephone wire just can charge.
In native system embodiment 1, the two line differential data signals that electric supply installation 1 receives can be directly by the cable that meets " YD/T 322-1996 copper core polyolefin insulating is moulded the composite sheath city communication cable " standard, provide as the telephone wire cable, also can provide by netting twine; But under situation about providing by netting twine, this electric supply installation 1 and the 4 supporting installings of two-wire system converting unit, this two-wire system converting unit 4 is used for four line data-signals are converted into two line differential data signals, and offers described electric supply installation 1.
In native system embodiment 1, electric supply installation 1 can adopt electric supply installation provided by the present invention, comprise data input coupled end 11, one PSE12, the first data coupled end 13, the second data coupled end 14 and be used for being respectively applied for every two holding wire 11a, 11b of the straight-through isolation network of handing over 15 described data input coupled end 11 and connect described two-wire system converting unit 4 is obtained differential data signals; It will be appreciated by those skilled in the art that holding wire 11a, 11b are connected with Telephone Cable respectively if under the situation that Telephone Cable directly provides, directly obtain differential data signals.The anodal 12a of described PSE12 is connected with the first data coupled end 13, the negative pole 12b of described PSE12 is connected with the second data coupled end 14, be used to provide the dc power supply signal, and send by the holding wire of the first data coupled end 13 and the second data coupled end 14, realize the function of supplying power of electric supply installation; The described first data coupled end 13 is coupled with described data input coupled end 11 respectively with the described second data coupled end 14, is used for coupling and obtains the interchange data-signal, and send by holding wire, realizes the middle rotating function of the interchange data-signal of electric supply installation; A holding wire 13a of the described first data coupled end 13 is used for being connected every the straight-through isolation network of handing over 15 by one with a holding wire 14a of the described second data coupled end 14; Another root holding wire 14b of another root holding wire 13b of the described first data coupled end 13 and the described second data coupled end 14 is used for output AC data-signal and dc power supply signal
In order not influence the coupling of AC signal, the anodal 12a of PSE12 described in the native system embodiment 1 is connected in the middle part of the first data coupled end 13, and the negative pole 12b of described PSE12 is connected in the middle part of the second data coupled end 14.
In native system embodiment 1, current-collecting device 2 can adopt current-collecting device provided by the present invention, comprises data output coupled end 21, one PD22, the first signal coupled end 23 and secondary signal coupled end 24, and be used for every the isolation network 25 that leads directly to friendship.A holding wire 23b of the described first signal coupled end 23 and a holding wire 24b of secondary signal coupled end 24 are respectively applied for two-line cable 3 and are connected, and receive the input that exchanges data-signal and dc power signal; Another root holding wire 23a of the described first signal coupled end 23 and another root holding wire 24a of secondary signal coupled end 24 are connected by isolation network 25 respectively; Current-collecting device one end is introduced isolation network 25 in existing PoE technology, has realized two-wire system but not the reception of 4 pairs of twisted-pair feeder signals.The holding wire 22a of described PD22 is connected with the first signal coupled end 23, and another root holding wire 22b of described PD22 is connected with secondary signal coupled end 24, is used to current-collecting device that dc power supply is provided; One data output coupled end 21, with described first signal coupled end 23 and 24 couplings of secondary signal coupled end, two holding wire 21a, 21b of described data output coupled end 21 are used to current-collecting device that the interchange data-signal is provided.
The holding wire of PD22 described in the native system embodiment 1 is connected with another root holding wire 23a of the described first signal coupled end 23 and another root holding wire 24a of secondary signal coupled end 24 respectively, and these two holding wire 23a, 24a are two holding wires that are connected with isolation network 25.
Referring to Fig. 8, for realize the circuit diagram of the system embodiment 2 of power supply by two-line cable; On the basis of system embodiment 1, data input coupled end 11 and data output coupled end 21 are divided into two coupled end 111,112 and 211,212 by isolation network 113 and 213 respectively, respectively with data coupled end 13,14 and 23,24 couplings of signal coupled end.
Embodiments of the invention also provide a kind of method by two-line cable realization power supply, and may further comprise the steps: electric supply installation loads the dc power supply signal; Isolate described dc power supply positive and negative electrode signal by first isolation network; Described dc power supply positive and negative electrode signal is exported by two-line cable; Current-collecting device receives the dc power supply signal; Realize direct current supply by the second isolation network isolated DC power supply positive and negative electrode signal.
For the support to Content of Communication is provided, comprise that also electric supply installation receives differential data signals, coupling is obtained the interchange data-signal and is exported by two-line cable, this interchange data-signal can be by the netting twine input after the two-wire system converting unit be converted to the two-wire system input, also can import as the telephone wire cable directly by the cable that meets " YD/T 322-1996 copper core polyolefin insulating is moulded the composite sheath city communication cable " standard; Current-collecting device receives by two-line cable and the interchange data-signal is obtained in coupling.
Because the signal of input electric supply installation may be imported non-two wires, so before the electric supply installation reception differential data signals, also comprise the step that four line data-signals is converted into two line differential data signals.By this step, can realize the support of this method for the netting twine signal source.
Electric supply installation, current-collecting device, system and corresponding method by the embodiment of the invention provided have realized carrying out the scheme that power supply provides by two-line cable, have expanded PoE The Application of Technology occasion and scope.
It should be noted that at last: above embodiment is only in order to technical scheme of the present invention to be described but not limit it, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that: it still can make amendment or be equal to replacement technical scheme of the present invention, and these modifications or be equal to replacement and also can not make amended technical scheme break away from the spirit and scope of technical solution of the present invention.
Claims (25)
1, a kind of two-line cable electric supply installation comprises a power supply power supply unit and the first data coupled end that is connected with described power supply power supply unit respectively and the second data coupled end; It is characterized in that serial connection one is every the straight-through isolation network of handing between the described first data coupled end and the second data coupled end, be used to isolate the dc power supply signal of described first data coupled end and the loading of the second data coupled end, make the described first data coupled end and the second data coupled end export dc power supply positive and negative electrode signal respectively.
2, electric supply installation according to claim 1 is characterized in that also comprising data input coupled end, is used to receive differential data signals; The described first data coupled end and the second data coupled end and the coupling of described data input coupled end, the interchange data-signal that coupling is obtained forms signal circuit by described isolation network.
3, electric supply installation according to claim 2, it is characterized in that described data input coupled end comprises first data input coupled end and second data input coupled end, and another isolation network every straight-through friendship of serial connection between described first data input coupled end and second data input coupled end is used to receive differential data signals and makes it form signal circuit; The described first data coupled end and the second data coupled end are coupled with described first data input coupled end and second data input coupled end respectively.
4,, it is characterized in that the positive and negative electrode of described power supply power supply unit is connected to the middle part of the first data coupled end and the middle part of the second data coupled end according to the arbitrary described electric supply installation of claim 1-3.
5,, it is characterized in that described isolation network is capacitor element or optocoupler according to the arbitrary described electric supply installation of claim 1-3.
6,, it is characterized in that described coupled end is a transformer according to the arbitrary described electric supply installation of claim 1-3.
7, a kind of two-line cable method of supplying power to is characterized in that may further comprise the steps:
After the dc power supply signal that loads on the first data coupled end and the second data coupled end was isolated by isolation network, its positive and negative electrode signal was respectively by described first data coupled end and the output of the second data coupled end.
8, a kind of two-line cable current-collecting device comprises a power supply receiver and the first signal coupled end and the secondary signal coupled end that are connected with described power supply receiver respectively; It is characterized in that serial connection one is every the straight-through isolation network of handing between described first signal coupled end and the secondary signal coupled end, be used to isolate the dc power supply signal of described first signal coupled end and the reception of secondary signal coupled end, make described first signal coupled end and secondary signal coupled end that dc power supply positive and negative electrode signal is provided respectively.
9, current-collecting device according to claim 8, it is characterized in that also comprising data output coupled end, with described first signal coupled end and the coupling of secondary signal coupled end, obtain the described first signal coupled end received and formed by described isolation network signal circuit with the secondary signal coupled end the data-signal that exchanges.
10, current-collecting device according to claim 9, it is characterized in that described data output coupled end comprises first data output coupled end and second data output coupled end, respectively with described first signal coupled end and the coupling of secondary signal coupled end, and described first data output coupled end and second data are exported another isolation network every straight-through friendship of serial connection between the coupled end, are used for coupling and obtain the interchange data-signal and make it form signal circuit.
11, according to Claim 8 arbitrary-10 described current-collecting device is characterized in that described power supply receiver is connected to an end of the described first signal coupled end and the middle part of secondary signal coupled end.
12, according to Claim 8 arbitrary-10 described current-collecting device is characterized in that described isolation network is capacitor element or optocoupler.
13, according to Claim 8 arbitrary-10 described current-collecting device is characterized in that described coupled end is a transformer.
14, a kind of two-line cable is subjected to method for electrically, it is characterized in that may further comprise the steps:
The first signal coupled end and secondary signal coupled end send to the power supply receiver and realize direct current supply after isolating reception dc power supply positive and negative electrode signal by isolation network.
15, a kind of system by two-line cable realization power supply is characterized in that comprising:
Electric supply installation is used to load the dc power supply signal, and isolates output dc power supply positive and negative electrode signal by first isolation network;
Two-line cable, an end connects electric supply installation, and the other end connects current-collecting device, is used for the transmission of dc power supply positive and negative electrode signal;
Current-collecting device is used to receive the dc power supply signal, and provides dc power supply positive and negative electrode signal to realize direct current supply by the isolation of second isolation network.
16, system according to claim 15 is characterized in that also comprising the two-wire system converting unit, is used for four line data-signals are converted into two line differential data signals, and offers described electric supply installation; Described electric supply installation also is used to receive described differential data signals, and coupling is obtained the interchange data-signal and exported by two-line cable; Described current-collecting device also is used for obtaining described interchange data-signal by two-line cable reception and coupling.
17,, it is characterized in that described electric supply installation comprises according to claim 15 or 16 described systems:
One power supply power supply unit;
The first data coupled end that is connected with described power supply power supply unit and the second data coupled end respectively;
First isolation network, be serially connected with between the described first data coupled end and the second data coupled end, be used to isolate the dc power supply signal of described first data coupled end and the loading of the second data coupled end, make the described first data coupled end and the second data coupled end export dc power supply positive and negative electrode signal respectively;
18, system according to claim 17 is characterized in that described electric supply installation also comprises data input coupled end, is used to receive differential data signals; The described first data coupled end and the second data coupled end and the coupling of described data input coupled end, the interchange data-signal that coupling is obtained forms signal circuit by described first isolation network.
19, system according to claim 18, it is characterized in that described data input coupled end comprises first data input coupled end and second data input coupled end, serial connection the 3rd isolation network between described first data input coupled end and second data input coupled end is used to receive differential data signals and makes it form signal circuit; The described first data coupled end and the second data coupled end are coupled with described first data input coupled end and second data input coupled end respectively.
20,, it is characterized in that described current-collecting device comprises according to claim 15 or 16 described systems:
One power supply receiver;
The first signal coupled end and the secondary signal coupled end that is connected with described power supply receiver respectively;
Second isolation network, be serially connected with between described first signal coupled end and the secondary signal coupled end, be used to isolate the dc power supply signal of described first signal coupled end and the reception of secondary signal coupled end, make described first signal coupled end and secondary signal coupled end that dc power supply positive and negative electrode signal is provided respectively.
21, system according to claim 20, it is characterized in that described current-collecting device also comprises data output coupled end, with described first signal coupled end and the coupling of secondary signal coupled end, obtain the described first signal coupled end and form the data-signal that exchanges that signal circuit provided with the reception of secondary signal coupled end and by described second isolation network.
22, system according to claim 21, it is characterized in that described data output coupled end comprises first data output coupled end and second data output coupled end, respectively with described first signal coupled end and the coupling of secondary signal coupled end, and serial connection the 4th isolation network between described first data output coupled end and second data output coupled end is used for coupling and obtains the interchange data-signal and form signal circuit.
23, a kind of method by two-line cable realization power supply is characterized in that may further comprise the steps:
Electric supply installation loads the dc power supply signal;
Isolate described dc power supply positive and negative electrode signal by first isolation network;
Described dc power supply positive and negative electrode signal is exported by two-line cable;
Current-collecting device receives the dc power supply signal;
Realize direct current supply by the second isolation network isolated DC power supply positive and negative electrode signal.
24, method according to claim 23 is characterized in that also comprising that electric supply installation receives differential data signals, and coupling is obtained the interchange data-signal and exported by two-line cable; Current-collecting device receives by two-line cable and described interchange data-signal is obtained in coupling.
25, method according to claim 24 is characterized in that described electric supply installation receives before the differential data signals, also comprises the step that four line data-signals is converted into two line differential data signals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200710064102XA CN100508461C (en) | 2007-02-28 | 2007-02-28 | Two-line cable power supply device, power receiving device, system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200710064102XA CN100508461C (en) | 2007-02-28 | 2007-02-28 | Two-line cable power supply device, power receiving device, system and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101056181A true CN101056181A (en) | 2007-10-17 |
| CN100508461C CN100508461C (en) | 2009-07-01 |
Family
ID=38795809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200710064102XA Expired - Fee Related CN100508461C (en) | 2007-02-28 | 2007-02-28 | Two-line cable power supply device, power receiving device, system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100508461C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101447807B (en) * | 2008-12-10 | 2012-08-22 | 上海复展电子科技有限公司 | High-efficient two-wire system power modulation bus and implementing method thereof |
| CN104321974A (en) * | 2012-03-08 | 2015-01-28 | 鼎盛油田技术有限公司 | Data communications system |
| CN104753776A (en) * | 2013-12-31 | 2015-07-01 | 中兴通讯股份有限公司 | Service isolation handling method, device, system, DPU (distributed processing unit) and network adapter |
| CN105553895A (en) * | 2014-10-31 | 2016-05-04 | 浙江大华技术股份有限公司 | Powered device in ethernet, and signal attenuation compensation method and apparatus |
| CN107370607A (en) * | 2016-09-22 | 2017-11-21 | 淮阴师范学院 | A kind of network power supply electric control system |
| CN107636979A (en) * | 2015-03-25 | 2018-01-26 | 赛峰电子与防务公司 | Power/data electric coupler |
-
2007
- 2007-02-28 CN CNB200710064102XA patent/CN100508461C/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101447807B (en) * | 2008-12-10 | 2012-08-22 | 上海复展电子科技有限公司 | High-efficient two-wire system power modulation bus and implementing method thereof |
| US9951609B2 (en) | 2012-03-08 | 2018-04-24 | Zenith Oilfield Technology Limited | Data communications system |
| CN104321974A (en) * | 2012-03-08 | 2015-01-28 | 鼎盛油田技术有限公司 | Data communications system |
| CN104321974B (en) * | 2012-03-08 | 2017-01-18 | 鼎盛油田技术有限公司 | Data communications system |
| US9840907B2 (en) | 2012-03-08 | 2017-12-12 | Zenith Oilfield Technology Limited | Data communications system |
| US9976412B2 (en) | 2012-03-08 | 2018-05-22 | Zenith Oilfield Technology Limited | Data communications system |
| CN104753776A (en) * | 2013-12-31 | 2015-07-01 | 中兴通讯股份有限公司 | Service isolation handling method, device, system, DPU (distributed processing unit) and network adapter |
| CN106656264A (en) * | 2013-12-31 | 2017-05-10 | 中兴通讯股份有限公司 | Service separation processing methods, apparatuses and system, distributed point unit (DPU) and network adapter |
| CN106656264B (en) * | 2013-12-31 | 2021-01-22 | 中兴通讯股份有限公司 | Service isolation processing method, device and system, DPU and network adapter |
| CN105553895A (en) * | 2014-10-31 | 2016-05-04 | 浙江大华技术股份有限公司 | Powered device in ethernet, and signal attenuation compensation method and apparatus |
| CN105553895B (en) * | 2014-10-31 | 2019-02-12 | 浙江大华技术股份有限公司 | Ethernet power receiving equipment, signal attenuation compensation method and device |
| CN107636979A (en) * | 2015-03-25 | 2018-01-26 | 赛峰电子与防务公司 | Power/data electric coupler |
| CN107636979B (en) * | 2015-03-25 | 2019-04-12 | 赛峰电子与防务公司 | Power/data electric coupler, coupled system and data and power delivery network |
| CN107370607A (en) * | 2016-09-22 | 2017-11-21 | 淮阴师范学院 | A kind of network power supply electric control system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100508461C (en) | 2009-07-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101056181A (en) | Two-line cable power supply device, power receiving device, system and method | |
| CN200959605Y (en) | Interface circuit of electric connector | |
| CN101282275A (en) | Telecommunication Ethernet system and repeater | |
| CN102136851A (en) | Communication method and communication system | |
| CN101436883A (en) | Electric power modem | |
| WO2010063234A1 (en) | Wireless distributed apparatus and system and signal transmission method | |
| CN201797525U (en) | POE-based repeater power supply device | |
| CN101321071A (en) | POE switch power source adapter | |
| CN1262089C (en) | Method and apparatus for realizing long distance power supply and LAN | |
| CN203313213U (en) | Power line carrier multi-media high-speed broadband Internet terminal device | |
| CN106161160B (en) | A kind of coaxial cable broadband network-building method and network system | |
| CN110602821B (en) | POE power supply-based light control system, method and storage medium | |
| CN209805823U (en) | Network transmission equipment for co-cable transmission of data and power supply | |
| CN101141146A (en) | Network transmission system and power cord communication apparatus | |
| CN2648674Y (en) | Electric injector | |
| CN103973520A (en) | Power line carrier multi-medium high-speed broadband interconnection terminal device | |
| CN202818333U (en) | POE switch power supply adapter possessing voltage detecting function | |
| CN209134431U (en) | Power supply unit and system | |
| CN203313216U (en) | Multi-medium internet gateway device | |
| KR20030066498A (en) | Method and apparatus for supplying power for network camera system | |
| CN111213341B (en) | Ethernet power supply adapter | |
| CN1477785A (en) | Inserting and drawing wireless long distance control mechanism for controlling panel | |
| CN108810128B (en) | Elevator system based on power line carrier and IP network clustering | |
| CN1558564A (en) | Power line based data communication system and realizing method thereof | |
| CN206313798U (en) | It is a kind of to realize the communication system that various transmission signals are mutually changed |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 310052 Binjiang District Changhe Road, Zhejiang, China, No. 466, No. Patentee after: Xinhua three Technology Co., Ltd. Address before: 310053 Hangzhou hi tech Industrial Development Zone, Zhejiang province science and Technology Industrial Park, No. 310 and No. six road, HUAWEI, Hangzhou production base Patentee before: Huasan Communication Technology Co., Ltd. |
|
| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090701 Termination date: 20200228 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |