CN103024230B - A kind of Homeplug equipment - Google Patents
A kind of Homeplug equipment Download PDFInfo
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- CN103024230B CN103024230B CN201210512618.7A CN201210512618A CN103024230B CN 103024230 B CN103024230 B CN 103024230B CN 201210512618 A CN201210512618 A CN 201210512618A CN 103024230 B CN103024230 B CN 103024230B
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- 238000004891 communication Methods 0.000 claims abstract description 50
- 230000008878 coupling Effects 0.000 claims abstract description 15
- 238000010168 coupling process Methods 0.000 claims abstract description 15
- 238000005859 coupling reaction Methods 0.000 claims abstract description 15
- 239000003990 capacitor Substances 0.000 claims description 28
- 238000001514 detection method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
The invention discloses a kind of Homeplug equipment, it comprises DC power anode input, DC power cathode input, signal coupling circuit, electric source filter circuit, zero cross signal split circuit, power line communication treatment circuit; Two inputs of signal coupling circuit are connected with DC power cathode input with DC power anode input respectively, and two outputs are connected to respectively power line communication treatment circuit; Two inputs of electric source filter circuit are connected with DC power cathode input with DC power anode input respectively, and two outputs are connected to respectively power line communication treatment circuit; One end of zero cross signal split circuit is connected with DC power anode input, and the other end is connected to power line communication treatment circuit. The present invention has realized the Homeplug equipment that is applicable to low-voltage power supply.
Description
Technical field
The present invention relates to power communication field, particularly a kind of Homeplug equipment.
Background technology
Homeplug, has another name called electric power networks bridger, is that one is modulated to network signal on electric wire, utilizes existingLive wire solves the equipment of network layout problem. At present, Homeplug is as third generation networks transmission equipment,The high speed not only with netting twine is stable, and also to possess the movement of wireless network convenient.
In Technology of Power Line Communication, Homeplug application is very extensive, and it utilizes electric wire to transmit high-frequency signal,The high-frequency signal of carrying information is loaded on electric current, then, with electric wire transmission, receive the modulation /demodulation of informationDevice again high-frequency signal from electric current " decomposition " out, and be sent on computer or phone, thereby do not needingWant to realize on the basis of rewiring online, make a phone call and watch IPTV, use video monitoring equipment etc. manyPlant application.
Present Homeplug equipment is Direct Plug-In substantially, and alternating current 220V directly inputs, or civil power is directInput desktop type Homeplug equipment.
As shown in Figure 1, a kind of zero cross detection circuit of Homeplug power-supply device of prior art, power line lead toLetter signal and power supply three tunnel outputs are independently, and it exports 5 lines. Two is Homeplug signal of communication, oneRoot is zero passage detection signal, and other two are respectively VDD-to-VSS. The Homeplug power-supply device of prior art is depositedIn following problem: slotting wall equipment can only be placed and insert wall position, cannot move, dumb; Exchange if lengthened, there is the danger of high-tension electricity in the desktop type Homeplug of power line; Adopt the Homeplug of separate power supply to haveSecurity, can suitably move, but five core power connection complexity, single core interface that cannot be general, cost is high.And cabling is long, power supply and holding wire intercouple, and disturb excessive. Therefore, can be by five of Homeplug power supplyRoad signal coupling is to dc source.
But how restoring 5 road signals from dc source is current technical issues that need to address.
Summary of the invention
In order to solve the problems referred to above of prior art, be necessary to provide a kind of low-voltage dc power supply power supply of being suitable forHomeplug equipment.
The technical scheme that technical solution problem of the present invention provides is:
A kind of Homeplug equipment, it comprises DC power anode input, DC power cathode input, letterNumber coupling circuit, electric source filter circuit, zero cross signal split circuit, power line communication treatment circuit; SignalTwo inputs of coupling circuit are connected with DC power cathode input with DC power anode input respectivelyConnect, two outputs are connected to respectively power line communication treatment circuit; Two inputs of electric source filter circuit respectivelyBe connected with DC power cathode input with DC power anode input, two outputs are connected to respectively electricityLine of force communication processing circuit; One end of zero cross signal split circuit is connected with DC power anode input,The other end is connected to power line communication treatment circuit.
Wherein, signal coupling circuit comprises communications transformer T1, capacitor C 1 and capacitor C 2, communication transformationTwo inputs of device T1 are respectively by capacitor C 1 and capacitor C 2 and DC power anode input and direct currentSource negative input is connected, and two outputs are connected to respectively power line communication treatment circuit. .
Wherein, zero cross signal split circuit comprises capacitor C 4.
Wherein, electric source filter circuit comprises common mode inductance T2, inductance L 1, inductance L 2, capacitor C 3 and electricityHold C5, two inputs of common mode inductance T2 are respectively by inductance L 1 and L2 and DC power anode inputEnd and DC power cathode input, capacitor C 3 is connected between two inputs of common mode inductance T2, electricityHold C5 and be connected between two outputs of common mode inductance T2, two outputs of common mode inductance T2 connect respectivelyTo power line communication treatment circuit.
Wherein, zero cross signal split circuit is connected with DC power anode input by inductance L 1.
Wherein, DC power anode input is connected respectively by coaxial cable with DC power cathode inputTo positive pole and the negative pole of external direct current power supply.
Wherein, power line communication treatment circuit is processed for Dui Wu road signal, and generating external equipment canThe signal of identification.
Wherein, described Homeplug equipment also comprises that an Ethernet being connected with power line communication treatment circuit connectsMouthful.
Compared with prior art, the present invention has realized the Homeplug that is suitable for low-voltage dc power supply power supply and has establishedStandby, by independent Homeplug power supply, for user provides the power line communication application of safe low pressure,The expansion of application that providing and separation equipment of colleague's direct current has been also doing of other equipment and Homeplug, makes electricityThe mode of line of force communication is more versatile and flexible.
Brief description of the drawings
Fig. 1 is the circuit theory diagrams of the Homeplug power-supply device of prior art.
Fig. 2 is the circuit theory diagrams of Homeplug equipment of the present invention.
Detailed description of the invention
As shown in Figure 2, be the circuit theory diagrams of Homeplug equipment of the present invention, it comprises DC power anodeInput, DC power cathode input, signal coupling circuit, electric source filter circuit, zero cross signal separateCircuit, power line communication treatment circuit and Ethernet interface. Signal coupling circuit comprise communications transformer T1,Capacitor C 1 and capacitor C 2. Electric source filter circuit comprises common mode inductance T2, inductance L 1, inductance L 2, electricityHold C3 and capacitor C 5. Zero cross signal split circuit comprises capacitor C 4.
Outside DC power anode input and DC power cathode input are connected to respectively by coaxial cableConnect positive pole and the negative pole of dc source. Two inputs of signal coupling circuit are inputted with DC power anode respectivelyEnd is connected with DC power cathode input, and it is for being coupled out two-way from external dc power signalPlc communication signal, and by two outputs, two-way plc communication signal is sent to power line communication processingCircuit. Two inputs of electric source filter circuit are defeated with DC power anode input and DC power cathode respectivelyEnter end and be connected, it is for isolating power supply signal from external dc power signal, and by two outputsThis power supply signal is sent to power line communication treatment circuit, gives the power supply of power line communication treatment circuit. Zero passageOne end of demultiplexing circuit is connected with DC power anode input by inductance L 1, and the other end connectsTo power line communication treatment circuit, it is for isolating zero passage detection signal from external dc power signal,And zero cross signal is sent to power line communication treatment circuit. Power line communication treatment circuit receives zero passage detectionSignal and two-way plc communication signal, generate ethernet signal and be sent to Ethernet interface.
Two inputs of communications transformer T1 are defeated with DC power anode by capacitor C 1 and capacitor C 2 respectivelyEnter end and be connected with DC power cathode input, two outputs are connected to respectively power line communication and process electricityRoad. Two inputs of common mode inductance T2 respectively by inductance L 1 and L2 and DC power anode input withDC power cathode input, capacitor C 3 is connected between two inputs of common mode inductance T2, capacitor C 5Be connected between two outputs of common mode inductance T2, two outputs of common mode inductance T2 are connected to respectively electricityLine of force communication processing circuit. Capacitor C 4 is for separating of zero passage detection signal, and first zero cross signal passes through L1The filtering of inductance, isolation high-frequency communication signal (more than 2MHZ), then separates by capacitor C 4.Communications transformer T1 is for providing the coupling path of electric-power wire communication signal. Capacitor C 1 and capacitor C 2 are carriedFor coupling path time, isolated DC input power. Common mode inductance T2, capacitor C 3, capacitor C 5,Inductance L 1 forms low pass filter together with inductance L 2, and isolation high-frequency communication signal, provides clean electricitySource is given to power line communication treatment circuit.
Signal coupling circuit will be coupled in external direct current power supply the signal extraction of two-way plc communication out, mistakeZero-signal split circuit is separated the zero cross signal being coupled in external direct current power supply, electric source filter circuitThe power supply signal being just coupled in external direct current power supply restores, thereby it is external to have realized Homeplug equipmentThe signal reduction of the DC power supply Wu of portion road, and offer power line communication treatment circuit, led to by power lineLetter treatment circuit generates ethernet signal.
Compared with prior art, the present invention has realized the Homeplug that is suitable for low-voltage dc power supply power supply and has establishedStandby, by independent Homeplug power supply, for user provides the power line communication application of safe low pressure,The expansion of application that providing and separation equipment of colleague's direct current has been also doing of other equipment and Homeplug, makes electricityThe mode of line of force communication is more versatile and flexible.
Above content is in conjunction with concrete preferred embodiment further description made for the present invention, noCan assert that specific embodiment of the invention is confined to these explanations. Common for the technical field of the inventionTechnical staff, without departing from the inventive concept of the premise, can also make some simple deductions or replaceChange, all should be considered as belonging to protection scope of the present invention.
Claims (8)
1. a Homeplug equipment, is characterized in that, comprises DC power anode input, dc sourceNegative input, signal coupling circuit, electric source filter circuit, zero cross signal split circuit, power line communicationTreatment circuit;
Two inputs of signal coupling circuit are defeated with DC power anode input and DC power cathode respectivelyEnter end and be connected, two outputs are connected to respectively power line communication treatment circuit;
Two inputs of electric source filter circuit are defeated with DC power anode input and DC power cathode respectivelyEnter end and be connected, two outputs are connected to respectively power line communication treatment circuit;
One end of zero cross signal split circuit is connected with DC power anode input, and the other end is connected to electricityLine of force communication processing circuit.
2. Homeplug equipment according to claim 1, is characterized in that, signal coupling circuit comprisesCommunications transformer T1, capacitor C 1 and capacitor C 2, two inputs of communications transformer T1 pass through respectively electric capacityC1 is connected with DC power cathode input with DC power anode input with capacitor C 2, two outputsBe connected to respectively power line communication treatment circuit.
3. Homeplug equipment according to claim 1, is characterized in that, zero cross signal split circuitComprise capacitor C 4.
4. Homeplug equipment according to claim 1, is characterized in that, electric source filter circuit comprisesCommon mode inductance T2, inductance L 1, inductance L 2 and capacitor C 3, two inputs of common mode inductance T2 are logical respectivelyCross inductance L 1 and L2 and DC power anode input and DC power cathode input, capacitor C 3 connectsBetween two inputs of common mode inductance T2, capacitor C 5 is connected between two outputs of common mode inductance T2,Two outputs of common mode inductance T2 are connected to respectively power line communication treatment circuit.
5. Homeplug equipment according to claim 4, is characterized in that, zero cross signal split circuitBe connected with DC power anode input by inductance L 1.
6. Homeplug equipment according to claim 1, is characterized in that, DC power anode inputEnd and DC power cathode input are connected to respectively the positive pole of external direct current power supply and are born by coaxial cableThe utmost point.
7. Homeplug equipment according to claim 1, is characterized in that, power line communication is processed electricityProcess for Dui Wu road signal on road, generates the signal that external equipment can be identified.
8. Homeplug equipment according to claim 1, is characterized in that, also comprises one and power lineThe Ethernet interface that communication processing circuit is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210512618.7A CN103024230B (en) | 2012-12-04 | 2012-12-04 | A kind of Homeplug equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210512618.7A CN103024230B (en) | 2012-12-04 | 2012-12-04 | A kind of Homeplug equipment |
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| Publication Number | Publication Date |
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| CN103024230A CN103024230A (en) | 2013-04-03 |
| CN103024230B true CN103024230B (en) | 2016-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210512618.7A Expired - Fee Related CN103024230B (en) | 2012-12-04 | 2012-12-04 | A kind of Homeplug equipment |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203933616U (en) * | 2014-05-09 | 2014-11-05 | 中兴通讯股份有限公司 | A kind of signal transmission system |
| CN104144003A (en) * | 2014-07-02 | 2014-11-12 | 王国强 | Power network bridge technology adopting GPON tail fiber access |
| CN105049085B (en) * | 2015-08-20 | 2018-01-30 | 深圳市拉格朗日电子有限公司 | A kind of electric line communication system |
| CN105591669A (en) * | 2016-01-29 | 2016-05-18 | 河南捷步电子科技有限公司 | Anti-interference power line network adapter high in communication speed |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6297729B1 (en) * | 1999-03-29 | 2001-10-02 | International Business Machines Corporation | Method and apparatus for securing communications along ac power lines |
| CN101079853A (en) * | 2006-05-24 | 2007-11-28 | 厦门瑞科技术发展有限公司 | A bidirectional coupling circuit for network system |
| CN101436883A (en) * | 2008-12-03 | 2009-05-20 | 华为技术有限公司 | Electric power modem |
| CN101635522A (en) * | 2009-06-26 | 2010-01-27 | 江苏利通电子有限公司 | Switch power supply for powerline carrier communication modem |
| CN101902256A (en) * | 2010-07-30 | 2010-12-01 | 广东广联电子科技有限公司 | Communication method based on power line access and network device |
| CN201797502U (en) * | 2010-07-17 | 2011-04-13 | 刘利华 | Intelligent touch switch for power line carrier network |
| CN202495963U (en) * | 2012-03-31 | 2012-10-17 | 北京华强智连微电子有限责任公司 | OFDM carrier communication module |
-
2012
- 2012-12-04 CN CN201210512618.7A patent/CN103024230B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6297729B1 (en) * | 1999-03-29 | 2001-10-02 | International Business Machines Corporation | Method and apparatus for securing communications along ac power lines |
| CN101079853A (en) * | 2006-05-24 | 2007-11-28 | 厦门瑞科技术发展有限公司 | A bidirectional coupling circuit for network system |
| CN101436883A (en) * | 2008-12-03 | 2009-05-20 | 华为技术有限公司 | Electric power modem |
| CN101635522A (en) * | 2009-06-26 | 2010-01-27 | 江苏利通电子有限公司 | Switch power supply for powerline carrier communication modem |
| CN201797502U (en) * | 2010-07-17 | 2011-04-13 | 刘利华 | Intelligent touch switch for power line carrier network |
| CN101902256A (en) * | 2010-07-30 | 2010-12-01 | 广东广联电子科技有限公司 | Communication method based on power line access and network device |
| CN202495963U (en) * | 2012-03-31 | 2012-10-17 | 北京华强智连微电子有限责任公司 | OFDM carrier communication module |
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| CN103024230A (en) | 2013-04-03 |
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Effective date of registration: 20200113 Address after: Room 101, building 2, No.97 Maoshan Road, Chang'an Town, Dongguan City, Guangdong Province Patentee after: Dongguan tengze Electronic Technology Co., Ltd Address before: 518001, Guangdong, Nanshan District province Shenzhen science and Technology Park North District, Tsinghua information port, block A, building 9 Patentee before: Shenzhen Allwins Technology Corporation |
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