CN100372285C - Remote power supply system and method - Google Patents
Remote power supply system and method Download PDFInfo
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- CN100372285C CN100372285C CNB2005100683095A CN200510068309A CN100372285C CN 100372285 C CN100372285 C CN 100372285C CN B2005100683095 A CNB2005100683095 A CN B2005100683095A CN 200510068309 A CN200510068309 A CN 200510068309A CN 100372285 C CN100372285 C CN 100372285C
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Abstract
The present invention provides a remote electricity supplying system and a method. The system has a kernel that a local end power supply module is provided with a local end controlling circuit, and a far end power supply module is provided with a far end controlling circuit. The far end controlling circuit monitors the electricity supplying state of the far end power supply module, and a monitoring signal is generated. The far end controlling circuit and the local end controlling circuit control the local end power supply module by transmitting the monitoring signal and a controlling signal and supply electricity to the far end power supply module in a remote mode. The local end controlling circuit of the present invention can obtain the remote the electricity supplying state information of the far end power supply module in time, so the local end power supply module can control the remote the electricity supply of the far end power supply module in time to establish a far end power supply module monitoring system for remote electricity supply and to realize the purpose of enhancing the maintainability of the far end power supply module.
Description
Technical field
The present invention relates to the network communications technology field, be specifically related to a kind of remote electric power system and method.
Background technology
Continuous growth along with the communication service demand, on the basis that utilizes the existing subscribers feeder network of having laid, operator expands its new business to final user, a kind of more common way of perhaps upgrade legacy network, optimizing user's combination is: equipment such as broadband, arrowband are shifted to final user side more, simultaneously, utilize some to subscribers feeders such as twisted-pair feeder or coaxial cables as data feedback channel.Like this, can tell more user and business at user side.
When equipment such as broadband, arrowband are shifted to user side, owing to the user side circumstance complication and be inconvenient to provide reasons such as power supply as a rule, make power supply become masty practical problem to these far-end power receiving equipments.
For providing the remote power feeding method of power supply, the far-end power receiving equipment become the major technique support scheme of operator's extending user, business by local side by subscribers feeder.After adopting the remote power feeding technology, but the reliability of far end supply and the ability of maintenance are greatly improved.The far-end power supply technique will obtain to use in increasing networking products.
At present, the operation principle of remote electric power system as shown in Figure 1.
In Fig. 1, the power supply that the local supply module provides can be by directly taking subscribers feeder or powering to the far-end power receiving equipment by the mode that power supply is coupled on the subscribers feeder.
The method of supplying power to of remote electric power system as shown in Figure 2.
In Fig. 2, the local supply module is transformed to required voltage with the boost in voltage of local side input, and this voltage is generally direct current.Power supply after boosting by some to subscribers feeder to the far end supply module for power supply, the far end supply inside modules has a cover power converting circuit at least, this power converting circuit is the voltage available of far-end power consumption equipment with the voltage transformation that transmits on the subscribers feeder, offers the far-end power consumption equipment.
In this programme, can adopt a pair of or several to subscribers feeder transmit a polarity of voltage, also can transmission power supply many to subscribers feeder in, make every pair of subscribers feeder all transmit two polarity.The power converting circuit of independent design in corresponding local supply of the every pair of subscribers feeder and the far end supply module is to carry out power supply backup.
In the existing remote electric power system, the local supply module can not realize the monitoring function to the far end supply module, makes the maintainability of far end supply module poor.
Summary of the invention
The objective of the invention is to, a kind of remote electric power system and method are provided, by monitoring, to realize improving the purpose of far end supply module maintainability the far end supply module.
For achieving the above object, a kind of remote electric power system provided by the invention comprises: local supply module, far end supply module;
The local supply module is provided with local control circuit, and the far end supply module is provided with far-end control circuit;
The power supply state of described far-end control circuit monitoring far end supply module produces pilot signal;
Described local control circuit is according to described pilot signal control local side electric power source pair of module far end supply module for power supply.
Described local supply module also is provided with service signal input port, monitoring/service signal coupling and buffer circuit, and described far end supply module is provided with the service signal output port, and monitoring/service signal is separated lotus root and buffer circuit; Described pilot signal coupling is coupled in pilot signal, the control signal with the polarity of buffer circuit with the local supply module, and described service signal coupling is coupled in the service signal with buffer circuit another polarity with the local supply module; Described prison signal control decoupling zero and buffer circuit are with the power supply decoupling zero of the coupling in pilot signal, the control signal, and offer the far end supply module, described service signal separates lotus root and buffer circuit is separated lotus root with the power supply that is coupled in the service signal, and offers the far end supply module.
Described monitoring/service signal coupling and buffer circuit are that 2 or 1 and described monitoring/service signal decoupling zero and buffer circuit correspond to 2 or 1, and described monitoring/service signal coupling and buffer circuit and corresponding monitoring/service signal are separated lotus root and buffer circuit and all be coupled and separate lotus root.
Described monitoring/service signal coupling and buffer circuit, described monitoring/service signal decoupling zero and buffer circuit are: 1: 1 turn ratio centre tapped isolating transformer arranged.
Described far end supply module also is provided with the local power supply input port;
The power supply of described far-end control circuit control local power supply input port input is connected/disconnects with the far end supply module.
A kind of remote power feeding method comprises:
The power supply state of a, far-end control circuit monitoring far end supply module, and produce pilot signal;
B, described local control circuit are according to described pilot signal control local side electric power source pair of module far end supply module for power supply.
Described pilot signal comprises: far end supply module for power supply state is normal, far end supply module for power supply abnormal state, with power supply state relevant fault message unusually.
Described control signal comprises: make the far end supply module be in the remote power feeding state, make the far end supply module be in the power supplied locally state, start the far end supply module power supply, close the power supply of far end supply module.
Described method also comprises:
Described far-end control circuit is according to the remote power feeding of the power supply state ACTIVE CONTROL far end supply module of the far end supply module of its monitoring.
The control signal of described local control circuit, the pilot signal of far-end control circuit are: analog signal.
The frequency of the power supply that described local supply module provides for the far end supply module is at least control signal, pilot signal highest frequency 10 times, and 3 to 11 frequencys multiplication of the frequency of this power supply should be lower than the frequency of service signal.
Description by technique scheme as can be known, far-end control circuit of the present invention is by the power supply state of monitoring far end supply module, and in time the pilot signal of power supply state in time is reported to local side, make local control circuit can in time obtain the remote power feeding state information of far end supply module, make the local supply module can in time control the remote power feeding of far end supply module, set up the far end supply module monitors system of remote power feeding; Thereby realized improving the purpose of far end supply module maintainability by technical scheme provided by the invention.
Description of drawings
Fig. 1 is the operation principle schematic diagram of remote electric power system;
Fig. 2 is the method for supplying power to schematic diagram of the remote electric power system of prior art;
Fig. 3 is the method for supplying power to schematic diagram one of remote electric power system of the present invention;
Fig. 4 is the method for supplying power to schematic diagram two of remote electric power system of the present invention.
Embodiment
Core of the present invention is: in the local supply module local control circuit is set, in the far end supply module far-end control circuit is set, the power supply state of far-end control circuit monitoring far end supply module, produce pilot signal, described far-end control circuit, local control circuit are controlled the remote power feeding of local side electric power source pair of module far end supply module by transmitting, monitoring signal, control signal.
In conjunction with the accompanying drawings remote electric power system provided by the invention and remote power feeding method are further described based on core concept of the present invention below.
The local supply module is communicated by letter with the power supply that far-end control circuit carries out remote power feeding by local control circuit with the far end supply module.The purpose of power supply communication is to set up for local supply module and far end supply module the monitoring system of remote power feeding between local supply module and the far end supply module.
Accompanying drawing 3 is a kind of implementations of remote electric power system of the present invention.
In Fig. 3, remote electric power system of the present invention comprises: local supply module and far end supply module, the local supply module is the far end supply module for power supply by 4 pairs of subscribers feeders.The far end supply module provides power supply for apparatus for remote communication, and apparatus for remote communication can be the incorporate communication equipment of wideband Communication apparatus, narrow-band communication equipments or width.
Be provided with local control circuit, 2 pilot signal couplings and buffer circuit, 2 service signal couplings and buffer circuit, service signal input port in the local supply module.
Be provided with far-end control circuit, 2 pilot signal decoupling zeros and buffer circuit, 2 service signal decoupling zeros and buffer circuit, service signal output port and local power supply input port in the far end supply module.
The power supply state of far-end control circuit monitoring far end supply module, occur when unusual at the power supply state of far end supply module, the pilot signal that power supply state is unusual transfers to local control circuit, the signal that transfers to local control circuit with the unusual pilot signal of power supply state can also comprise and the unusual relevant fault message of power supply state, has promptly produced the information of which kind of fault etc.Far-end control circuit also can at the power supply state of far end supply module just often transfer to local control circuit with the normal pilot signal of power supply state.
The power supply state of the control signal control far end supply module that far-end control circuit can come according to local control circuit transmission, as make the far end supply module be in the remote power feeding state, make the far end supply module be in the power supplied locally state, start the far end supply module power supply, close the power supply of far end supply module etc.
Far-end control circuit can also be controlled the input state of local power supply according to the control signal that the local control circuit transmission comes, and is that far end supply module for power supply or selection local supply module are far end supply module remote power feeding etc. as selecting local power supply.When selecting local power supply to be the far end supply module for power supply, far-end control circuit control is connected with the far end supply translation circuit of far end supply module from the power supply of local power supply input port input, and control disconnects from the far end supply translation circuit that local side transmits next power supply and far end supply module.
Far-end control circuit also can be according to its power supply state to the monitoring result ACTIVE CONTROL far end supply module of far end supply module, as make the far end supply module be in the remote power feeding state, make the far end supply module be in the power supplied locally state, start the far end supply module power supply, close the power supply of far end supply module etc.Equally, far-end control circuit can be that far end supply module for power supply or selection local supply module are far end supply module remote power feeding etc. as selecting local power supply according to the input state of ACTIVE CONTROL local power supply also.
Start the power supply of far end supply module, the power supply of closing the far end supply module can realize by the state of control far end supply translation circuit, as starting the far end supply translation circuit, closing far end supply translation circuit etc.
Among Fig. 3, the local supply module provides remote power supply by the mode of coupling for the far end supply module, a polarity that is local supply translation circuit out-put supply is coupled in pilot signal, the control signal with buffer circuit by 2 different pilot signal couplings, takies 2 pairs of subscribers feeders and is connected with buffer circuit with the pilot signal decoupling zero of far end supply module; Another polarity of local supply translation circuit out-put supply is coupled in the service signal with buffer circuit by 2 different service signal couplings, takies 2 pairs of subscribers feeders and is connected with buffer circuit with the service signal decoupling zero of far end supply module.
Pilot signal coupling and buffer circuit, service signal coupling and buffer circuit, pilot signal decoupling zero and buffer circuit and service signal decoupling zero and buffer circuit can be the centre tapped isolating transformer of 1: 1 have for the turn ratio, the output port of isolating transformer is connected respectively with two branches of subscribers feeder, input port is connected with the low-voltage signal circuit, centre cap is positioned at the output oral-lateral, and centre cap is connected with a polarity of local side/far end supply translation circuit.
In the far end supply module of Fig. 3, A1, A2 are the centre cap of service signal decoupling zero and buffer circuit, B1, B2 are the centre cap of pilot signal decoupling zero and buffer circuit, a polarity of voltage behind the power conversion of A1, A2 and far end supply module is connected, and another polarity of voltage behind the power conversion of B1, B2 and far end supply module is connected.
The voltage available of far end supply module output apparatus for remote communication behind the power conversion, this voltage can be intermediate voltage such as 48VDC, ± 120VDC etc., also can be final voltage such as 3.3V, 5V etc.
In the local supply module of Fig. 3, A1, A2 are the centre cap of service signal coupling and buffer circuit, B1, B2 are the centre cap of pilot signal coupling and buffer circuit, a polarity of voltage behind the power conversion of A1, A2 and local supply module is connected, for guaranteeing that direct current refluxes, need 2 pairs of subscribers feeders to be connected the another one electric power polarity of local supply module and far end supply module with the Power Supply Monitoring signal symmetry, so another polarity of voltage behind the power conversion of B1, B2 and local supply module is connected.
Behind the power conversion local supply module output far away for direct voltage such as 200VDC, ± 120VDC etc., its input can be 48VDC or AC power.
Like this, the reception of power supply signal of communication and transmission, be that pilot signal, control signal are distributed in independently two pairs of subscribers feeders to last, and all be connected with a polarity of power supply, do not disturb mutually, nor the influence that exists voltage difference to cause by isolating transformer and power supply signal isolation, makes the power supply signal of communication can be in safe low level state simultaneously.The reception of service signal and send service distribution on the two pairs of subscribers feeders independently, subscribers feeder is to low level signal of last transmission, between right two lines of subscribers feeder owing to be in same electric power polarity, the voltage that also is safe from danger exists, the fail safe of the subscribers feeder of fully guaranteed to be coupled service signal and power supply.
Under the situation of far-end bearing power increase in demand, the present invention can adopt the power supply more than 4 pairs of subscribers feeder transmission local supply modules, but wherein has only 2 pairs of subscribers feeders to be used to transmit the power supply signal of communication.
Pilot signal coupling among the present invention and buffer circuit, service signal coupling and buffer circuit, pilot signal decoupling zero and buffer circuit, service signal decoupling zero and buffer circuit require the above dielectric voltage withstand of 1500V.
Pilot signal that transmits between local control circuit and the far-end control circuit and control signal must be able to be applicable to the transmission of long distance, thereby, pilot signal and control signal can adopt the analog signal that is applicable to long Distance Transmission, as touch-tone signal, or similar touch-tone signal etc.
Pilot signal that transmits between local control circuit and the far-end control circuit and control signal should be followed the agreement of prior agreement, and the present invention does not limit concrete agreement.
Also the service signal input port can be set in the local supply module of the present invention, same.Also the service signal output port can be set in the far end supply module, be that A1, A2 in Fig. 3 local supply module directly is connected with subscribers feeder with buffer circuit without service signal coupling, the A1 of far end supply module, A2 directly are connected with a polarity of far end supply translation circuit with buffer circuit without the service signal decoupling zero.
The present invention also must handle between power supply and the signal problem of mutual interference mutually well in pilot signal, service signal and power supply Coupling Design, otherwise, may be because mutual cross talk effects far supplies transmission range and far away from effect, should be higher than 10 times of power supply signal of communication highest frequency as the power work frequency, 3～11 frequencys multiplication of power work frequency should be lower than the operating frequency as the xDSL service signal of communication traffic signal.
The present invention can also carry out simplified design under the resource-constrained situation of subscribers feeder, promptly adopt remote electric power system shown in Figure 4.
The remote electric power system among Fig. 4 and the overall frame structure of the remote electric power system among Fig. 3 and realization principle basically identical, the main distinction is that the transmission of pilot signal and control signal realizes by a pair of subscribers feeder, as can only keeping data feedback channel from the far end supply module to the local supply module, perhaps adopt the mode of timesharing active channel to realize the transmission of pilot signal and control signal, promptly send pilot signal to local control circuit, transmit control signal to far-end control circuit at another one time slot local control circuit at a certain time slot signal far-end control circuit.
The local supply module can transfer to the far end supply module by the mode of coupling equally for the power supply that the far end supply module provides, as a polarity after the conversion of local supply modular power source is coupled in the subscribers feeder with buffer circuit by a pilot signal coupling, another polarity after the conversion of local supply modular power source is coupled in the subscribers feeder with buffer circuit by the service signal coupling, the far end supply module is by pilot signal decoupling zero and buffer circuit, two electric power polarities of service signal decoupling zero and buffer circuit decoupling zero outgoing end power module, so, in the remote electric power system of Fig. 4, realize remote power feeding of the present invention by 2 pairs of subscribers feeders.
Though described the present invention by embodiment, those of ordinary skills know, the present invention has many distortion and variation and do not break away from spirit of the present invention, and the claim of application documents of the present invention comprises these distortion and variation.
Claims (11)
1. remote electric power system comprises: local supply module and far end supply module, it is characterized in that described local supply module is provided with local control circuit, and described far end supply module is provided with far-end control circuit;
The power supply state of described far-end control circuit monitoring far end supply module produces pilot signal;
Described local control circuit is according to described pilot signal control local side electric power source pair of module far end supply module for power supply.
2. a kind of remote electric power system as claimed in claim 1, it is characterized in that, described local supply module also is provided with service signal input port, monitoring/service signal coupling and buffer circuit, described far end supply module is provided with the service signal output port, and monitoring/service signal is separated lotus root and buffer circuit; Described pilot signal coupling is coupled in pilot signal, the control signal with the polarity of buffer circuit with the local supply module, and described service signal coupling is coupled in the service signal with buffer circuit another polarity with the local supply module; Described prison signal control decoupling zero and buffer circuit are with the power supply decoupling zero of the coupling in pilot signal, the control signal, and offer the far end supply module, described service signal separates lotus root and buffer circuit is separated lotus root with the power supply that is coupled in the service signal, and offers the far end supply module.
3. a kind of remote electric power system as claimed in claim 2, it is characterized in that, described monitoring/service signal coupling and buffer circuit are that 2 or 1 and described monitoring/service signal decoupling zero and buffer circuit correspond to 2 or 1, and described monitoring/service signal coupling and buffer circuit and corresponding monitoring/service signal are separated lotus root and buffer circuit and all be coupled and separate lotus root.
4. a kind of remote electric power system as claimed in claim 2 is characterized in that, described monitoring/service signal coupling and buffer circuit, described monitoring/service signal decoupling zero and buffer circuit are: 1: 1 turn ratio centre tapped isolating transformer arranged.
5. a kind of remote electric power system as claimed in claim 1 or 2 is characterized in that, described far end supply module also is provided with the local power supply input port;
The power supply of described far-end control circuit control local power supply input port input is connected/disconnects with the far end supply module.
6. a remote power feeding method is characterized in that, comprising:
The power supply state of a, far-end control circuit monitoring far end supply module, and produce pilot signal;
B, described local control circuit are according to described pilot signal control local side electric power source pair of module far end supply module for power supply.
7. a kind of remote power feeding method as claimed in claim 6 is characterized in that described pilot signal comprises: far end supply module for power supply state is normal, far end supply module for power supply abnormal state, with power supply state relevant fault message unusually.
8. a kind of remote power feeding method as claimed in claim 6, it is characterized in that described control signal comprises: make the far end supply module be in the remote power feeding state, make the far end supply module be in the power supplied locally state, start the far end supply module power supply, close the power supply of far end supply module.
9. a kind of remote power feeding method as claimed in claim 6 is characterized in that described method also comprises:
Described far-end control circuit is according to the remote power feeding of the power supply state ACTIVE CONTROL far end supply module of the far end supply module of its monitoring.
10. a kind of remote power feeding method as claimed in claim 6 is characterized in that the control signal of described local control circuit, the pilot signal of far-end control circuit are: analog signal.
11. a kind of remote power feeding method as claimed in claim 6, it is characterized in that, the frequency of the power supply that described local supply module provides for the far end supply module is at least control signal, pilot signal highest frequency 10 times, and 3 to 11 frequencys multiplication of the frequency of this power supply should be lower than the frequency of service signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100683095A CN100372285C (en) | 2005-04-30 | 2005-04-30 | Remote power supply system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100683095A CN100372285C (en) | 2005-04-30 | 2005-04-30 | Remote power supply system and method |
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| Publication Number | Publication Date |
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| CN1859126A CN1859126A (en) | 2006-11-08 |
| CN100372285C true CN100372285C (en) | 2008-02-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2005100683095A Active CN100372285C (en) | 2005-04-30 | 2005-04-30 | Remote power supply system and method |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012095055A2 (en) * | 2012-03-01 | 2012-07-19 | 华为技术有限公司 | Remote supply system and remote power supply |
| CN104581051A (en) * | 2014-12-19 | 2015-04-29 | 镇江丰成民用联网设备科技有限公司 | Remote feed video monitoring system based on four wires |
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| JP2002214262A (en) * | 2001-01-19 | 2002-07-31 | Hioki Ee Corp | Transmission characteristic measuring apparatus for cable |
| US6486746B1 (en) * | 2000-06-30 | 2002-11-26 | Intel Corporation | Termination circuit for decoupling unused wires on a network device's unshielded twisted pair (UTP) cable |
| CN1567816A (en) * | 2003-06-26 | 2005-01-19 | 烽火通信科技股份有限公司 | A remote power feeding equipment having remote control function |
| CN1855827A (en) * | 2005-04-19 | 2006-11-01 | 华为技术有限公司 | Remote electric power supplying system and its control |
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2005
- 2005-04-30 CN CNB2005100683095A patent/CN100372285C/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6486746B1 (en) * | 2000-06-30 | 2002-11-26 | Intel Corporation | Termination circuit for decoupling unused wires on a network device's unshielded twisted pair (UTP) cable |
| JP2002214262A (en) * | 2001-01-19 | 2002-07-31 | Hioki Ee Corp | Transmission characteristic measuring apparatus for cable |
| CN1567816A (en) * | 2003-06-26 | 2005-01-19 | 烽火通信科技股份有限公司 | A remote power feeding equipment having remote control function |
| CN1855827A (en) * | 2005-04-19 | 2006-11-01 | 华为技术有限公司 | Remote electric power supplying system and its control |
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| CN1859126A (en) | 2006-11-08 |
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Effective date of registration: 20211116 Address after: 518043 No. 01, 39th floor, building a, antuoshan headquarters building, No. 33, antuoshan Sixth Road, Xiang'an community, Xiangmihu street, Futian District, Shenzhen, Guangdong Province Patentee after: Huawei Digital Energy Technology Co., Ltd Address before: 518129 Huawei headquarters office building, Bantian, Longgang District, Shenzhen, Guangdong Patentee before: Huawei Technology Co., Ltd |