CN103795550A - Method and apparatus for supplying power - Google Patents
Method and apparatus for supplying power Download PDFInfo
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- CN103795550A CN103795550A CN201210426148.2A CN201210426148A CN103795550A CN 103795550 A CN103795550 A CN 103795550A CN 201210426148 A CN201210426148 A CN 201210426148A CN 103795550 A CN103795550 A CN 103795550A
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Abstract
The embodiment of the invention relates to a method and apparatus for supplying power. The method comprises detecting whether a power supply device is physically connected with an opposite-end device if the physical layer link of a local port is in an unconnected state; identifying whether the opposite-end device is an effective powered device if the power supply device is physically connected with the opposite-end device; classifying the effective powered device if the opposite-end device is an effective powered device and powering up the effective powered device according to a classified result; identifying whether the opposite-end device connected with the local port is an effective powered device if the physical layer link of the local port is switched from the unconnected state to a connected state, and classifying the effective powered device if the opposite-end device is an effective powered device and powering up the effective powered device according to a classified result.
Description
Technical field
The present invention relates to communication technique field, relate in particular to a kind of method of supplying power to and device.
Background technology
Power over Ethernet (English: power over Ethernet, be called for short: PoE), refer in the situation that existing Ethernet wiring architecture does not make any changes, for some IP-based terminals (as, Internet protocol (English: Internet protocol, be called for short: IP) telephone set, wireless local network connecting point (English: access point, be called for short: AP), web camera etc.) when transmission of data signals, kind equipment provides the technology of direct current supply for this reason.By PoE technology, can effectively solve the Power supply of the terminals such as IP phone machine, wireless local network connecting point AP, web camera, for above-mentioned these terminals, can no longer consider the problem of its indoor power supply system wiring, in access network, just can realize the power supply to equipment, reduce costs to greatest extent.Fig. 1 is POE technology application schematic diagram.
Conventionally, power supply unit (English: power sourcing equipment in POE system, be called for short: PSE) from identification power receiving equipment (English: powered device, be called for short: PD) most the process of PD power supply as shown in Figure 2, through detection, classification, power management, power on, the step such as lower electricity.In the time setting up Power over Ethernet connection, PSE transmits pulse signal by port on the twisted-pair feeder being connected with opposite equip., and the voltage of pulse signal is 2.8V-10.1V, and meanwhile, PSE starts standard detection.If with the characteristic impedance (English: characteristic impedance) of the PD of twisted pair line connection, capacitive reactance (English: capacitive reactance) all in allowed limits, to identify this PD be effective PD to PSE; If exceed the scope of permission with any one in characteristic impedance, the capacitive reactance of the PD of twisted pair line connection, to identify this PD be invalid PD to PSE.
In the time that PD is effective PD, PSE carries out the step of classification and power management to PD.When in the power bracket of power at PSE that PD needs, PSE is the step that PD powers on, otherwise, the port being connected with this PD of the PSE state in detection, classification, power management or the failure that powers on always.
There is following defect in such scheme: 1), in the time of the lower extension PD of PSE equipment equipment, the port of each PSE can be always in detected state, and lasting transmits current limliting voltage on cable, and power consumption and benefited, causes the waste of the energy; 2) the PD unit exception of hanging under PSE equipment or the power management of PSE are limited and cannot complete while normally powering on; the port of PSE is always in detecting, classification or power on unsuccessful, then the state of cyclic process detecting; continue power consumption and without being benefited, cause the waste of the energy.
Summary of the invention
The object of the invention is the port that the middle PSE in order to solve prior art is connected with PD and continue power consumption and without being benefited, cause the problem of energy waste, a kind of method of supplying power to and device are provided.
In first aspect, the invention provides a kind of method of supplying power to.Described method comprises:
If the physical layer link state of local port is not-connected status, detect and whether have physical connection with opposite equip., in the time there is physical connection with described opposite equip., whether identify described opposite equip. is effective power receiving equipment, if when described opposite equip. is effective power receiving equipment, for described effective power receiving equipment classification, and be that described effective power receiving equipment powers on according to classification results;
If the physical layer link state of described local port switches to connection status by not-connected status, whether the described opposite equip. that identification is connected with described local port is effective power receiving equipment, if described opposite equip. is effective power receiving equipment, for described effective power receiving equipment classification, and be that described effective power receiving equipment powers on according to classification results.
In the possible implementation of the first, whether described detection exists physical connection to be specially with opposite equip.: utilize empty cable detection mode, detect whether have physical connection with opposite equip..
In conjunction with the possible implementation of the first of first aspect or first aspect, in the possible implementation of the second, whether described detection exists physical connection also to comprise with opposite equip.: in the time there is not physical connection with described opposite equip., record described local port and maintain very first time of not-connected status, whether identify the described very first time exceedes default very first time threshold value, if exceed described very first time threshold value, described local port is set to resting state;
Record described local port and maintain the second time of resting state, identify described the second time and whether exceed the second default time threshold, if be no more than described the second time threshold, described local port maintains resting state.
In the possible implementation of the first, the second of first aspect or first aspect, in the third possible implementation, described method also comprises: obtain power modification information;
According to described power modification information, whether be effective power receiving equipment, in the time that described opposite equip. is effective power receiving equipment, described effective power receiving equipment is carried out to classification if identifying described opposite equip., and be that described effective power receiving equipment powers on according to classification results.
In conjunction with the first, the second, the third possible implementation of first aspect or first aspect, in the 4th kind of possible implementation, whether the described opposite equip. of described identification is that effective power receiving equipment also comprises before: detect whether have physical connection with opposite equip., whether in the time there is physical connection with described opposite equip., identifying described opposite equip. is effective power receiving equipment.
In second aspect, the invention provides a kind of electric supply installation.Described device comprises:
The first performance element, if the physical layer link state for local port is not-connected status, detect and whether have physical connection with opposite equip., in the time there is physical connection with described opposite equip., whether identify described opposite equip. is effective power receiving equipment, if when described opposite equip. is effective power receiving equipment, is described effective power receiving equipment classification, and is that described effective power receiving equipment powers on according to classification results;
The second performance element, if the physical layer link state for described local port switches to connection status by not-connected status, whether the described opposite equip. that identification is connected with described local port is effective power receiving equipment, if described opposite equip. is effective power receiving equipment, for described effective power receiving equipment classification, and be that described effective power receiving equipment powers on according to classification results.
In the possible implementation of the first, described the first performance element specifically specifically for, utilize empty cable detection mode, detect whether there is physical connection with opposite equip..
In conjunction with the possible implementation of the first of second aspect or second aspect, in the possible implementation of the second, described the first performance element also for, in the time there is not physical connection with described opposite equip., record described local port and maintain very first time of not-connected status, whether exceed default very first time threshold value, if exceed described very first time threshold value, described local port is set to resting state if identifying the described very first time;
Record described local port and maintain the second time of resting state, identify described the second time and whether exceed the second default time threshold, if be no more than described the second time threshold, described local port maintains resting state.
In conjunction with the possible implementation of the first, the second of second aspect or second aspect, in the third possible implementation, described device also comprises: acquiring unit, for obtaining power modification information;
Recognition unit, being used for according to described power modification information, whether be effective power receiving equipment, in the time that described opposite equip. is effective power receiving equipment if identifying described opposite equip., described effective power receiving equipment is carried out to classification, and be that described effective power receiving equipment powers on according to classification results.
In conjunction with the first, the second, the third possible implementation of second aspect or second aspect, described device also comprises: detecting unit, for detection of whether having physical connection with opposite equip., whether in the time there is physical connection with described opposite equip., identifying described opposite equip. is effective power receiving equipment.
By applying method of supplying power to provided by the invention and device, PSE is according to the difference of the physical layer link state of local port, open or stop empty cable detection, and whether the opposite equip. that identification is connected with local port is effective power receiving equipment, in the time that opposite equip. is effective power receiving equipment, for effectively powering on after power receiving equipment classification.Thereby in solution prior art, continue to detect power consumption and the problem without income; Meanwhile, in the time that PSE carries out empty cable detection, empty cable detection power consumption is little, further saves energy.
Accompanying drawing explanation
Fig. 1 is POE technology application schematic diagram;
Fig. 2 is PSE power supply process schematic diagram in prior art;
The method of supplying power to flow chart that Fig. 3 provides for the embodiment of the present invention one;
The electric supply installation structure chart that Fig. 4 provides for the embodiment of the present invention two;
The electric supply installation structure chart that Fig. 5 provides for the embodiment of the present invention three.
Embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, the specific embodiment of the invention is described in further detail.
Describe the method for supplying power to that the embodiment of the present invention provides below in detail as an example of Fig. 3 example, the method for supplying power to flow chart that Fig. 3 provides for the embodiment of the present invention one, subject of implementation is the power supply unit in Power over Ethernet system in embodiments of the present invention.As shown in Figure 3, this embodiment comprises the following steps:
If the physical layer link state of step 310 local port is not-connected status, detect and whether have physical connection with opposite equip., in the time there is physical connection with described opposite equip., whether identify described opposite equip. is effective power receiving equipment, if when described opposite equip. is effective power receiving equipment, for described effective power receiving equipment classification, and be that described effective power receiving equipment powers on according to classification results.
Particularly, the physical layer link state of PSE inquiry PSE local port, in Power over Ethernet system, the physical layer link state of port is represented as PHY Link Up in connection status; Physical layer link state is represented as PHY Link Down in not-connected status.
For example, operational administrative personnel pull out the twisted-pair feeder being connected with opposite equip. in PSE local port, have not also changed another opposite equip., and the physical layer link state of PSE inquiry local port switches to PHY Link Down state by PHY LinkUp state; Or PSE local port maintains PHY LinkDown state always.If physical layer link state is PHY Link Down state, PSE opens empty cable detection VCT, in the time there is physical connection with opposite equip., whether PSE identification opposite equip. is effective power receiving equipment, if when opposite equip. is effective power receiving equipment, PSE is effective power receiving equipment classification, and is that effective power receiving equipment powers on according to classification results.Optionally, PSE periodically carries out empty cable detection, whether has physical connection with opposite equip. to detect, and adopts further saves energy of this possibility.
Described empty cable detection VCT technology refers to, and uses time domain reflectometry (English: time domainreflectometry, abbreviation: TDR) judge whether to have physical connection with opposite equip..PSE, by the twisted-pair feeder transmitted signal being connected with opposite equip., checks the reflection interval of pulse signal, determines whether to exist the physical connection of opposite equip..In VCT technology, exist physical connection to be represented as with opposite equip. and be connected (English: connect) state; Do not exist physical connection to be represented as open circuit (English: open) state with opposite equip..
Further, in the time there is physical connection with opposite equip., whether PSE identification opposite equip. is that effective power receiving equipment is specially:
PSE transmits pulse signal by local port on the twisted-pair feeder being connected with opposite equip., and the voltage of this pulse signal is 30V to the maximum, and the electric current passing through is 5mA to the maximum.Now, PSE detects the characteristic impedance on twisted-pair feeder, the value of capacitive reactance, and the value of this characteristic impedance, capacitive reactance is PSE after opposite equip. transmitted signal, the characteristic value that this opposite equip. shows.If the characteristic value that opposite equip. shows all within the limits prescribed, this opposite equip. is effective powered device PD, no, this opposite equip. is invalid powered device PD, in the time that opposite equip. is invalid powered device PD, PSE is set to park mode with the local port that invalid powered device PD is connected.
The scope of described characteristic value regulation is specially: 23.75/k Ω≤characteristic impedance/k Ω≤26.25/k Ω; 0.05/ μ F≤capacitive reactance≤0.12/ μ F.
In the time that PSE identifies opposite equip. and is effective power receiving equipment, PSE is that effective power receiving equipment carries out classification, identify the power bracket of effective power receiving equipment self, for example, effectively the power bracket of power receiving equipment is between 3W-6W, and this effective power receiving equipment is classified as the effective power receiving equipment of middle power by PSE.After effectively power receiving equipment classification completes, PSE also identifies the power bracket of self, whether the power bracket that is PSE identification self can provide enough electric energy for effective power receiving equipment, in the time that the power of PSE self can provide electric energy for effective power receiving equipment, PSE is effective power receiving equipment power supply according to awarding grade result.
Further, PSE periodically detects whether have physical connection with opposite equip., concrete detection method is: in the time there is not physical connection with opposite equip., PSE records local port and maintains the very first time of not-connected status, whether the identification very first time exceedes default very first time threshold value, if exceed very first time threshold value, PSE local port is set to resting state, stop detecting whether have physical connection with opposite equip., and follow-up detection is corresponding stopping also, solve in prior art and continue to detect with this, power consumption and the problem without income; Meanwhile, in the time that PSE carries out empty cable detection, empty cable detection power consumption is little, further saves energy; PSE also records local port and maintains the second time of resting state, whether second time of identifying exceedes the second default time threshold, if be no more than the second time threshold, local port maintains resting state, if exceed the second time threshold, local port is waken up, in wakeup time, the physical connection state of inquiry local port and Peer-Port, exceed after wakeup time, local port is set to resting state again, and PSE is set to dormancy one by local port and wakes the mode of a secondary dormancy up, prevents that local port is always in resting state.
Alternatively, before carrying out this step, also can carry out the physical layer (English: physical layer of following steps: PSE from this PSE, be called for short: PHY) chip or central processing unit (English: centralprocessing unit, abbreviation: the port status information of CPU) locating to obtain described PSE; According to the port status information of described PSE, the physical layer link state of the local port of inquiry PSE.
Particularly, in PSE, there are multiple local ports.PSE, by any port in described multiple local ports, connects with opposite equip..In the time that opposite equip. is effective power receiving equipment, for effective power receiving equipment provides power supply, and when power supply is provided, also can service data transmission.Described business datum is Ethernet data.
PHY chip or central processor CPU are inquired about the state of each local port in PSE at any time, and the state of described port is park mode or mode of operation, and described park mode is a kind of low-power consumption, energy-conservation pattern.For example, port connects without power receiving equipment, make this port in park mode, or port is connected with power receiving equipment, but long-time and power receiving equipment is without the transmission of business datum or electric energy, makes this port in park mode.Described mode of operation is the pattern of the normal work of port, and for example, port is connected with power receiving equipment, for power receiving equipment power supply, carries out the transmission of business datum with power receiving equipment.
PHY chip or central processor CPU, for the local port in park mode, generate local port state information.Obtain after local port state information the physical layer link state of inquiry local port from PHY chip or central processor CPU; For the local port in mode of operation, PHY chip or central processor CPU are not inquired about the state of the local port in mode of operation.
Local port state information comprises ports physical state information and the port state information of shaking hands.Described ports physical state information is obtained from the PHY chip of this PSE by PSE, and this physical port state information represents the physical state of local port, and whether described physical state for existing opposite equip. and local port connection status; The described port state information of shaking hands is obtained from the central processor CPU of this PSE by PSE, and the described port state information of shaking hands represents the physical layer link state of this local port, and described physical layer link state is whether local port is path.
In a kind of implementation of the embodiment of the present invention, the physical layer link state of the local port of PSE inquiry PSE is specially: preset query time threshold value, according to the physical layer link state of the local port of the inquiry PSE of query time threshold period, in query time threshold value, whether the physical layer link state of PSE inquiry local port changes, or whether the physical layer link state of local port does not change.
Further, the physical layer link state of PSE inquiry local port is specially: central processor CPU sends Query Information to PHY chip, in described Query Information, carry the mark of local port, after PHY chip is resolved Query Information, according to the physical layer link state of the mark inquiry local port of local port, and send a reply information to central processor CPU, and central processor CPU is stored return information, and PSE obtains the physical layer link state of local port from central processor CPU.
If the physical layer link state of the described local port of step 320 switches to connection status by not-connected status, whether the described opposite equip. that identification is connected with described local port is effective power receiving equipment, if described opposite equip. is effective power receiving equipment, for described effective power receiving equipment classification, and be that described effective power receiving equipment powers on according to classification results.
Particularly, if the physical layer link state of PSE inquiry PSE local port switches to PHY Link Up state by PHY Link Down state, PSE stops detecting whether have physical connection with opposite equip.; Whether the described opposite equip. that PSE Direct Recognition is connected with local port is effective power receiving equipment.
For example, operational administrative personnel set up twisted-pair feeder insertion by pair of end equipment and PSE local port and are connected, and therefore, the physical layer link state of local port changes, and switches to PHY Link Up state by PHY Link Down state.Because physical layer link state has switched to PHY Link Up, now, PSE can restart empty cable detection VCT technology, stops detecting whether have physical connection with opposite equip., and whether the opposite equip. that PSE can Direct Recognition be connected with local port is effective power receiving equipment.
Aforementionedly illustrate that PSE identifies whether the opposite equip. being connected with local port is the detailed process of effective power receiving equipment, no longer repeats at this.
Therefore, the method of supplying power to providing by the application embodiment of the present invention, PSE is according to the difference of the physical layer link state of local port, open or stop empty cable detection, whether and to identify opposite equip. be effective power receiving equipment, in the time that opposite equip. is effective power receiving equipment, for effectively powering on after power receiving equipment classification.Thereby in solution prior art, continue to detect power consumption and the problem without income; Meanwhile, in the time that PSE carries out empty cable detection, empty cable detection power consumption is little, further saves energy.
Alternatively, the embodiment of the present invention is further comprising the steps of, while changing for the power bearing at PSE local port, PSE identifies for the local port that power change occurs the opposite equip. being connected with local port again, when the power of solution prior art middle port changes, PSE continues to detect, power consumption and the problem without income.
Obtain power modification information;
Whether according to described power modification information, identifying described opposite equip. is effective power receiving equipment, if when described opposite equip. is effective power receiving equipment, is described effective power receiving equipment classification, and is that described effective power receiving equipment powers on according to classification results.
Particularly, PSE obtains power modification information, and described power modification information changes in order to the power of notifying a certain port of PSE can bear.The acquisition process of described power modification information is specially: operational administrative personnel reset the power that in PSE, a certain port can bear to put, and notify the network management device in Ethernet, require this network management device that power modification information is sent to this PSE.
For example, the original power that can bear of a certain port of PSE is 10W, and after arranging, the power that this port can bear is 8W, and the power of port changes.Now, PSE is according to power modification information, and whether identification opposite equip. is effective power receiving equipment, if when opposite equip. is effective power receiving equipment, is effectively power receiving equipment classification, and is that effective power receiving equipment powers on according to classification results.
Aforementionedly illustrate that PSE identifies whether the opposite equip. being connected with local port is the detailed process of effective power receiving equipment, no longer repeats at this.
Alternatively, before whether the described opposite equip. of identification is effective power receiving equipment, also can carry out following steps:
PSE detects whether have physical connection with opposite equip., and whether in the time there is physical connection with described opposite equip., identifying described opposite equip. is effective power receiving equipment.
Particularly, PSE, according to power modification information, can first start empty cable detection VCT, detects whether have physical connection with opposite equip.; In the time there is physical connection in PSE and opposite equip., close empty cable detection VCT, stop detecting whether have physical connection with opposite equip., whether identification opposite equip. is effective power receiving equipment.
Accordingly, the embodiment of the present invention two also provides a kind of electric supply installation, and in order to realize the method for supplying power in embodiment mono-, as shown in Figure 4, this electric supply installation is to be realized by PSE, and described PSE comprises: the first performance element 410 and the second performance element 420.
The first performance element 410, if the physical layer link state for local port is not-connected status, detect and whether have physical connection with opposite equip., in the time there is physical connection with described opposite equip., whether identify described opposite equip. is effective power receiving equipment, if when described opposite equip. is effective power receiving equipment, is described effective power receiving equipment classification, and is that described effective power receiving equipment powers on according to classification results;
The second performance element 420, if the physical layer link state for described local port switches to connection status by not-connected status, whether the described opposite equip. that identification is connected with described local port is effective power receiving equipment, if described opposite equip. is effective power receiving equipment, for described effective power receiving equipment classification, and be that described effective power receiving equipment powers on according to classification results.
Described the first performance element 410 specifically specifically for, utilize empty cable detection mode, detect whether there is physical connection with opposite equip..
Described the first performance element 410 also for, in the time there is not physical connection with described opposite equip., record described local port and maintain very first time of not-connected status, whether identify the described very first time exceedes default very first time threshold value, if exceed described very first time threshold value, described local port is set to resting state;
Record described local port and maintain the second time of resting state, identify described the second time and whether exceed the second default time threshold, if be no more than described the second time threshold, described local port maintains resting state.
Described device also comprises: acquiring unit 430, for obtaining power modification information;
Described device also comprises: detecting unit 450, for detection of whether having physical connection with opposite equip., whether in the time there is physical connection with described opposite equip., identifying described opposite equip. is effective power receiving equipment.
Therefore, the electric supply installation providing by the application embodiment of the present invention, electric supply installation is according to the difference of the physical layer link state of local port, open or stop empty cable detection, and whether the opposite equip. that identification connects is effective power receiving equipment, in the time that opposite equip. is effective power receiving equipment, for effectively powering on after power receiving equipment classification.Thereby in solution prior art, continue to detect power consumption and the problem without income; Meanwhile, in the time that PSE carries out empty cable detection, empty cable detection power consumption is little, further saves energy.
Accordingly, the embodiment of the present invention three also provides a kind of electric supply installation, and in order to realize the method for supplying power in the embodiment of the present invention one, as shown in Figure 5, described electric supply installation comprises: network interface 510, power supply chip 520, power supply 530.System bus 540 is for interconnection network interface 510, power supply chip 520 and power supply 530.
Start time, component software is loaded in the memory of electric supply installation self, then, electric supply installation call and execute store in as given an order:
If the physical layer link state of local port is not-connected status, detect and whether have physical connection with opposite equip., in the time there is physical connection with described opposite equip., whether identify described opposite equip. is effective power receiving equipment, if when described opposite equip. is effective power receiving equipment, for described effective power receiving equipment classification, and call power supply chip and power supply is that described effective power receiving equipment powers on according to classification results;
If the physical layer link state of described local port switches to connection status by not-connected status, whether the described opposite equip. that identification is connected with described local port is effective power receiving equipment, if described opposite equip. is effective power receiving equipment, for described effective power receiving equipment classification, and call power supply chip and power supply is that described effective power receiving equipment powers on according to classification results.
Further, carry out the instruction of following process:
Utilize empty cable detection mode, detect whether have physical connection with opposite equip..
Further, carry out the instruction of following process:
In the time there is not physical connection with described opposite equip., record described local port and maintain very first time of not-connected status, whether exceed default very first time threshold value, if exceed described very first time threshold value, described local port is set to resting state if identifying the described very first time;
Record described local port and maintain the second time of resting state, identify described the second time and whether exceed the second default time threshold, if be no more than described the second time threshold, described local port maintains resting state.
Further, carry out the instruction of following process:
Obtain power modification information;
According to described power modification information, whether be effective power receiving equipment, in the time that described opposite equip. is effective power receiving equipment, described effective power receiving equipment is carried out to classification if identifying described opposite equip., and be that described effective power receiving equipment powers on according to classification results.
Further, carry out the instruction of following process:
Detect whether have physical connection with opposite equip., whether in the time there is physical connection with described opposite equip., identifying described opposite equip. is effective power receiving equipment.
Therefore, the electric supply installation providing by the application embodiment of the present invention, electric supply installation is according to the difference of the physical layer link state of local port, open or stop empty cable detection, and whether the opposite equip. that identification connects is effective power receiving equipment, in the time that opposite equip. is effective power receiving equipment, for effectively powering on after power receiving equipment classification.Thereby in solution prior art, continue to detect power consumption and the problem without income; Meanwhile, in the time that PSE carries out empty cable detection, empty cable detection power consumption is little, further saves energy.
Professional should further recognize, unit and the algorithm steps of each example of describing in conjunction with embodiment disclosed herein, can realize with electronic hardware, computer software or the combination of the two, for the interchangeability of hardware and software is clearly described, composition and the step of each example described according to function in the above description in general manner.These functions are carried out with hardware or software mode actually, depend on application-specific and the design constraint of technical scheme.Professional and technical personnel can realize described function with distinct methods to each specifically should being used for, but this realization should not thought and exceeds scope of the present invention.
The software module that the method for describing in conjunction with embodiment disclosed herein or the step of algorithm can use hardware, processor to carry out, or the combination of the two is implemented.Software module can be placed in the storage medium of any other form known in random asccess memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technical field.
Above-described embodiment; object of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the foregoing is only the specific embodiment of the present invention; the protection range being not intended to limit the present invention; all on the basis of technical scheme of the present invention, any modification of making, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a method of supplying power to, is characterized in that, described method comprises:
If the physical layer link state of local port is not-connected status, detect and whether have physical connection with opposite equip., in the time there is physical connection with described opposite equip., whether identify described opposite equip. is effective power receiving equipment, if when described opposite equip. is effective power receiving equipment, for described effective power receiving equipment classification, and be that described effective power receiving equipment powers on according to classification results;
If the physical layer link state of described local port switches to connection status by not-connected status, whether the described opposite equip. that identification is connected with described local port is effective power receiving equipment, if described opposite equip. is effective power receiving equipment, for described effective power receiving equipment classification, and be that described effective power receiving equipment powers on according to classification results.
2. method of supplying power to according to claim 1, is characterized in that, whether described detection exists physical connection to be specially with opposite equip.:
By empty cable detection mode, detect whether have physical connection with opposite equip..
3. method of supplying power to according to claim 1 and 2, is characterized in that, whether described detection exists physical connection also to comprise with opposite equip.:
In the time there is not physical connection with described opposite equip., record described local port and maintain very first time of not-connected status, whether exceed default very first time threshold value, if exceed described very first time threshold value, described local port is set to resting state if identifying the described very first time;
Record described local port and maintain the second time of resting state, identify described the second time and whether exceed the second default time threshold, if be no more than described the second time threshold, described local port maintains resting state.
4. according to the method for supplying power to described in any one in claims 1 to 3, it is characterized in that, described method also comprises:
Obtain power modification information;
According to described power modification information, whether be effective power receiving equipment, in the time that described opposite equip. is effective power receiving equipment, described effective power receiving equipment is carried out to classification if identifying described opposite equip., and be that described effective power receiving equipment powers on according to classification results.
5. method of supplying power to according to claim 4, is characterized in that, whether the described opposite equip. of described identification is that effective power receiving equipment also comprises before:
Detect whether have physical connection with opposite equip., whether in the time there is physical connection with described opposite equip., identifying described opposite equip. is effective power receiving equipment.
6. an electric supply installation, is characterized in that, described device comprises:
The first performance element, if the physical layer link state for local port is not-connected status, detect and whether have physical connection with opposite equip., in the time there is physical connection with described opposite equip., whether identify described opposite equip. is effective power receiving equipment, if when described opposite equip. is effective power receiving equipment, is described effective power receiving equipment classification, and is that described effective power receiving equipment powers on according to classification results;
The second performance element, if the physical layer link state for described local port switches to connection status by not-connected status, whether the described opposite equip. that identification is connected with described local port is effective power receiving equipment, if described opposite equip. is effective power receiving equipment, for described effective power receiving equipment classification, and be that described effective power receiving equipment powers on according to classification results.
7. electric supply installation according to claim 6, is characterized in that, described the first performance element specifically specifically for,
Utilize empty cable detection mode, detect whether have physical connection with opposite equip..
8. according to the electric supply installation described in claim 6 or 7, it is characterized in that, described the first performance element also for,
In the time there is not physical connection with described opposite equip., record described local port and maintain very first time of not-connected status, whether exceed default very first time threshold value, if exceed described very first time threshold value, described local port is set to resting state if identifying the described very first time;
Record described local port and maintain the second time of resting state, identify described the second time and whether exceed the second default time threshold, if be no more than described the second time threshold, described local port maintains resting state.
9. according to the electric supply installation described in any one in claim 6 to 8, it is characterized in that, described device also comprises:
Acquiring unit, for obtaining power modification information;
Recognition unit, being used for according to described power modification information, whether be effective power receiving equipment, in the time that described opposite equip. is effective power receiving equipment if identifying described opposite equip., described effective power receiving equipment is carried out to classification, and be that described effective power receiving equipment powers on according to classification results.
10. electric supply installation according to claim 9, is characterized in that, described device also comprises:
Detecting unit, for detection of whether having physical connection with opposite equip., whether in the time there is physical connection with described opposite equip., identifying described opposite equip. is effective power receiving equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210426148.2A CN103795550B (en) | 2012-10-31 | 2012-10-31 | Method of supplying power to and device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106253357A (en) * | 2016-08-23 | 2016-12-21 | 锐捷网络股份有限公司 | A kind of method of supplying power to and electric supply installation |
| CN109120414A (en) * | 2017-06-22 | 2019-01-01 | 华为技术有限公司 | A kind of method of supplying power to for PoE, control equipment and power supply end equipment |
| CN109698755A (en) * | 2017-10-23 | 2019-04-30 | 华为技术有限公司 | Method for controlling power supply, power supply unit and power receiving equipment |
| CN110247776A (en) * | 2018-03-09 | 2019-09-17 | 深圳市优特普电子有限公司 | A kind of PoE slow power supply unit, system and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101252448A (en) * | 2008-03-31 | 2008-08-27 | 杭州华三通信技术有限公司 | Method and system for detecting current failure of power receiving equipment as well as power supply equipment |
| CN101977115A (en) * | 2010-09-07 | 2011-02-16 | 中兴通讯股份有限公司 | Method and device for realizing power control over Ethernet |
| CN102123034A (en) * | 2011-02-28 | 2011-07-13 | 中兴通讯股份有限公司 | Method and device for performing high voltage and low voltage selective power supply by utilizing power over Ethernet (POE) system |
| CN102387022A (en) * | 2011-10-20 | 2012-03-21 | 华为技术有限公司 | Power over Ethernet method and device |
-
2012
- 2012-10-31 CN CN201210426148.2A patent/CN103795550B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101252448A (en) * | 2008-03-31 | 2008-08-27 | 杭州华三通信技术有限公司 | Method and system for detecting current failure of power receiving equipment as well as power supply equipment |
| CN101977115A (en) * | 2010-09-07 | 2011-02-16 | 中兴通讯股份有限公司 | Method and device for realizing power control over Ethernet |
| CN102123034A (en) * | 2011-02-28 | 2011-07-13 | 中兴通讯股份有限公司 | Method and device for performing high voltage and low voltage selective power supply by utilizing power over Ethernet (POE) system |
| CN102387022A (en) * | 2011-10-20 | 2012-03-21 | 华为技术有限公司 | Power over Ethernet method and device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106253357A (en) * | 2016-08-23 | 2016-12-21 | 锐捷网络股份有限公司 | A kind of method of supplying power to and electric supply installation |
| CN106253357B (en) * | 2016-08-23 | 2019-01-11 | 锐捷网络股份有限公司 | A kind of method of supplying power to and power supply unit |
| CN109120414A (en) * | 2017-06-22 | 2019-01-01 | 华为技术有限公司 | A kind of method of supplying power to for PoE, control equipment and power supply end equipment |
| CN109698755A (en) * | 2017-10-23 | 2019-04-30 | 华为技术有限公司 | Method for controlling power supply, power supply unit and power receiving equipment |
| CN110247776A (en) * | 2018-03-09 | 2019-09-17 | 深圳市优特普电子有限公司 | A kind of PoE slow power supply unit, system and method |
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| Publication number | Publication date |
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| CN103795550B (en) | 2017-10-17 |
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