CN104618123A - Power supply method and device - Google Patents
Power supply method and device Download PDFInfo
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- CN104618123A CN104618123A CN201510029889.0A CN201510029889A CN104618123A CN 104618123 A CN104618123 A CN 104618123A CN 201510029889 A CN201510029889 A CN 201510029889A CN 104618123 A CN104618123 A CN 104618123A
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Abstract
The invention discloses a power supply method and device. The power supply method includes that receiving an electricity borrowing request message sent from neighboring POE equipment, wherein the electricity borrowing request message comprises electricity borrowing information; judging whether meeting a power supply condition according to the electricity borrowing information, if so, supplying electricity for the neighboring POE equipment according to the electricity borrowing information through a power supply port connected with the neighboring POE equipment so as to improve the power supply port number of the POE equipment.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of method of supplying power to and device.
Background technology
PD (Powered Device, receiving end equipment) in access, there is PSE (Power SourcingEquipment, feeder ear equipment) POE (the Power Over Ethernet of function of supplying power, Power over Ethernet) equipment time, by the PSE Function detection of POE equipment to this PD, and directly can be powered to this PD equipment by twisted-pair feeder.
Because every platform POE equipment has the upper limit of output power, such as, POE equipment has 30 interfaces, and this POE equipment complete machine can provide at most the output power of 390W, specifies that the exportable output power of each interface is 30W.So, if there are 13 PD equipment to access this POE equipment by 13 interfaces, so POE equipment is then required to be the output power that these 13 interfaces provide 390W.But, because this POE equipment has also remained most interface, if now there is new PD equipment access again, then can be available because not remaining output power, and the PD equipment that cannot be new access by remaining interface is powered.
Summary of the invention
For the defect of prior art, the invention provides a kind of method of supplying power to and device.
A kind of method of supplying power to provided by the invention, be applied to local POE equipment, wherein, the method comprises:
What receive that neighbours POE equipment sends borrows electric request message, described borrow in electric request message to carry cease by means of telecommunications;
Judge whether self meets condition of power supply according to described telecommunications breath of borrowing, if so, to borrow telecommunications to cease be that described neighbours POE equipment is powered by the power supply interface be connected with described neighbours POE equipment according to described.
The present invention also provides a kind of electric supply installation, and be applied to local POE equipment, described device comprises:
Receiving element, borrows electric request message for what receive that neighbours POE equipment sends, described borrow in electric request message to carry cease by means of telecommunications;
According to described telecommunications breath of borrowing, judging unit, for judging whether self meets condition of power supply;
Power supply unit, for according to described borrow telecommunications breath to judge that self meets condition of power supply time, to borrow telecommunications to cease be that described neighbours POE equipment is powered by the power supply interface be connected with described neighbours POE equipment according to described.
Method of supplying power to provided by the invention and device, supplying by setting up between adjacent POE equipment, being electrically connected, when POE equipment output power is not enough, can by the neighbours POE equipment meeting condition of power supply by the confession of setting up, electrically connected as it and powered, thus improve POE equipment can power supply interface quantity.
Accompanying drawing explanation
Fig. 1 is a kind of network environment schematic diagram that the embodiment of the present invention is applied;
Fig. 2 is the another kind of network environment schematic diagram that the embodiment of the present invention is applied;
Fig. 3 is a kind of method of supplying power to schematic flow sheet in the embodiment of the present invention;
Fig. 4 is the schematic diagram having new PD equipment to add in a kind of network environment applied in the embodiment of the present invention;
Fig. 5 is the logical construction schematic diagram of a kind of electric supply installation in the embodiment of the present invention;
Fig. 6 is the hardware structure schematic diagram of electric supply installation place POE equipment in the embodiment of the present invention.
Embodiment
For making the object of the application, technical scheme and advantage are clearly understood, are described in further detail the application's scheme referring to accompanying drawing.
In order to solve problems of the prior art, the invention provides a kind of method of supplying power to and device.
A kind of network environment schematic diagram that Fig. 1 applies for method of supplying power to of the present invention, which illustrate the present invention and be applied to C/S (Client/Server, client/server) specific environment under framework, the PD equipment comprising convergence-level equipment, multiple access layer equipment and powered by access layer equipment.This convergence-level equipment and access layer equipment can be all POE equipment, and, also can be specification, POE equipment that performance is consistent.Generally speaking, the performance of convergence-level equipment can higher than access layer equipment.In Fig. 1, POE1 is convergence-level equipment, and POE2, POE3 and POE4 are respectively access layer equipment, and PD1, PD2 and PD3 are the power receiving equipment of being powered by POE2, POE3 and POE4 respectively.This convergence-level equipment (POE1) respectively with access layer equipment (POE2, POE3 and POE4) neighbours POE equipment each other, and POE equipment have for power supply or powered interface.When POE equipment is convergence-level equipment, this interface is power supply interface; When POE equipment is access layer equipment, this interface is by electrical interface, it should be noted that, POE equipment can comprise power supply interface simultaneously and be subject to electrical interface, and power supply interface and can be same interface by electrical interface, namely this interface may be used for power supply, also may be used for powered.The power supply interface of convergence-level equipment and the electrical interface that is subject to of access layer equipment transmit output power by the connection (link 1 shown in Fig. 1) of setting up, the communication that LLDP (Link Layer Discovery Protocol, Link Layer Discovery Protocol) link (link 2 shown in Fig. 1) provides LLDP message is also comprised between convergence-level equipment and access layer equipment.
The another kind of network environment schematic diagram that Fig. 2 applies for method of supplying power to of the present invention, which illustrate the present invention and be applied to C/C (Client/Client, client/client) specific environment under framework, each PD equipment (PD1, PD2, PD3 and PD4) comprising multiple access layer equipment (POE1, POE2, POE3 and POE4) and powered by access layer equipment.This access layer equipment can be POE equipment.Each POE equipment have namely may be used for powered, also may be used for power interface.Wherein, POE1 and POE2, POE2 and POE3, POE3 and POE4 difference neighbours POE equipment each other, can be powered by namely may be used between each neighbours POE equipment, also may be used for power interface be connected (link 1 shown in Fig. 2) transmit output power, the communication of LLDP message is provided by LLDP link (link 2 shown in Fig. 2).
Please refer to Fig. 3, be the handling process schematic diagram of method of supplying power to provided by the invention, the method can be applied on POE equipment, and this method of supplying power to comprises the following steps:
Step 301, what receive that neighbours POE equipment sends borrows electric request message, described borrow in electric request message to carry cease by means of telecommunications.
Wherein, this power supply information can only comprise by means of electrical power numerical value, or comprises: by means of the priority facility of electrical power data value and this neighbours POE equipment.
According to described telecommunications breath of borrowing, step 302, judges whether self meets condition of power supply, if so, powered for this neighbours POE equipment by the power supply interface be connected with this neighbours POE equipment according to described telecommunications breath of borrowing.Wherein, condition of power supply can be:
Condition 1, self residual output power numerical value are more than or equal to described by means of electrical power numerical value; Or,
Condition 2, self available output power numerical value are more than or equal to described by means of electrical power numerical value.
If power supply information only comprises by means of electrical power numerical value, then condition of power supply is condition 1; If this power supply information comprises: by means of the priority facility of electrical power data value and this neighbours POE equipment, then condition of power supply is condition 2.
Wherein, residue output power numerical value is: total output power numerical value of local POE equipment is deducted the output power numerical value used and the output power numerical value lent, and the output power numerical value obtained is residue output power numerical value.
Available output power numerical value is: compared by the priority facility of the priority facility and this neighbours POE equipment of using all powered POE equipment of local POE equipment output power, if there is the priority facility of powered POE equipment to be less than the priority facility of this neighbours POE equipment, the numerical value of the output power that all powered POE equipment priority facility being less than the priority facility of this neighbours POE equipment is borrowed, add residue output power numerical value, namely the numerical value obtained be available output power numerical value.
Further, when power supply information only comprises by means of electrical power numerical value, and local POE equipment satisfy condition 1 time, be that this neighbours POE equipment is powered and specifically comprised according to described telecommunications breath of borrowing by the power supply interface that is connected with this neighbours POE equipment:
Self residual output power is used by power supply interface for neighbours POE equipment is powered according to borrowing electrical power numerical value.
When power supply information comprises the priority facility by means of electrical power numerical value and neighbours POE equipment, and local POE equipment satisfy condition 2 time, be that this neighbours POE equipment is powered and specifically comprised according to described telecommunications breath of borrowing by the power supply interface that is connected with this neighbours POE equipment:
Power total value to be recycled is gone out according to borrowing electrical power numerical value and self residual output power numerical computations, at least one the powered POE equipment being less than the priority facility of neighbours POE equipment for priority facility is stopped to power according to power total value to be recycled, to reclaim output power, (this recovery output power value adds that residue output power value is not less than by means of electrical power numerical value, uses the output power of recovery and remains output power by power supply interface for neighbours POE equipment is powered.
Further, after local POE equipment calculates power total value to be recycled, the method also comprises:
Message is reclaimed in the power supply that at least one the powered POE equipment being less than the priority facility of neighbours POE equipment to priority facility sends, wherein, message is reclaimed for the power supply being sent to each powered POE equipment, it is the output power numerical value that this powered POE equipment is powered that this power supply recovery message carries local POE equipment, knows that local POE equipment stops powering for this powered POE equipment to make this powered POE equipment.
It should be noted that, going out power total value to be recycled according to borrowing electrical power numerical value and self residual output power numerical computations can be specially: deduct self residual output power numerical value with borrowing electrical power numerical value and obtain power total value to be recycled.If the power total value to be recycled calculated is greater than 0, then carry out Power Recovery according to the power total value to be recycled calculated.If the power total value to be recycled calculated is not more than 0, then illustrates that the residue output power value of local POE equipment is greater than by means of electrical power numerical value, therefore, do not need regenerative power, utilize residue output power to power for neighbours POE equipment.
In one embodiment, because neighbours POE equipment may be powered to multiple POE device request simultaneously, for avoiding for electrical conflict, after local POE equipment determines self to meet condition of power supply, before powering for neighbours POE equipment, also need to confirm that neighbours POE equipment borrows electricity whether to accept the power supply of local POE equipment for this, therefore the method can also comprise:
Power supply confirmation message is sent, after the power supply response message receiving neighbours POE device replied, then according to borrowing telecommunications breath to be powered for this neighbours POE equipment by the power supply interface be connected with this neighbours POE equipment to neighbours POE equipment.If this neighbours POE equipment borrows electricity to accept the power supply of other POE equipment for this, so will not return and power response message to local POE device replied, accordingly, local POE equipment will not be powered for this neighbours POE equipment.Therefore, multiple POE equipment can be avoided to power for this neighbours POE equipment simultaneously.
In one embodiment, the telecommunications power supply interface ceased by being connected with neighbours POE equipment is borrowed to be after neighbours POE equipment is powered in basis, the method also comprises: if receive the also electricity notice message of neighbours POE equipment transmission, to neighbours POE device replied also electric confirmation message, and stop powering for neighbours POE equipment.
In one embodiment, if according to borrowing telecommunications breath to determine that self does not meet condition of power supply, send refusal message to neighbours POE equipment, to notify that this neighbours POE equipment cannot for its power supply.
If power supply information only comprises by means of electrical power numerical value, then determine that self not meeting condition of power supply is specially according to borrowing telecommunications breath to determine that self does not satisfy condition 1 according to borrowing telecommunications to cease, namely the residue output power numerical value of local POE equipment is less than by means of electrical power numerical value.
If power supply information comprises: by means of the priority facility of electrical power data value and this neighbours POE equipment, then determine that self not meeting condition of power supply is specially according to borrowing telecommunications breath to determine that self does not satisfy condition 2 according to borrowing telecommunications to cease, namely the available output power numerical value of local POE equipment is less than by means of electrical power numerical value.
In one embodiment, the method also comprises: when there being PD equipment to add local POE equipment, obtains the interface power default value local POE equipment connecting the interface of this PD equipment; If determine, self residual output power is more than or equal to this interface power default value, uses self residual output power to be powered for this PD equipment by the interface local POE equipment connecting this PD equipment; If determine, self residual output power is less than this interface power default value, and self residual output power adds that the output power numerical value lent is more than or equal to this interface power default value, according to this interface power default value, the order ascending according to priority facility reclaims the output power lending at least one powered POE equipment, and use the output power and self residual output power that reclaim, power for this PD equipment according to this interface power default value; If determine, self residual output power adds that the output power numerical value lent is less than this interface power default value, then the neighbours POE equipment to local POE equipment sends by means of electric request message, to carry out borrowing electricity.
The expansion equipment (POE1) that the embodiment of the present invention is powered in C/S framework for local POE equipment, is described further to neighbours POE equipment (POE2) power supply local POE equipment.Can with reference to handling process during C/S framework when being applied to C/C framework, the present invention will not enumerate.
Please refer to Fig. 4, when neighbours POE equipment POE2 is the access layer equipment under C/S framework, POE2 can power for connected multiple PD equipment, when it is in PD1 power supply process, if there is new PD equipment PD4 to add POE2, so first POE2 obtains the interface power default value of the interface that the PD4 that newly adds with this is connected, and checks whether the output power that POE2 provides arrives the upper limit, namely check that POE2 is after PD1 provides output power, whether also have remaining output power.If do not reach the upper limit (having residue output power), and residue output power is more than or equal to this interface power default value, then preferentially use the remaining output power of POE2 by power supply interface for PD4 powers, if reached the upper limit (without residue output power), or the remaining output power of POE2 is less than this interface power default value, so then can check whether self has the output power lending other POE equipment by POE2, if have, and the output power lent adds that self residual output power is more than or equal to this interface power default value, then check the priority facility of the powered POE equipment borrowing electricity to POE2, and stop at least one powered POE equipment wherein to power according to the order that priority facility is ascending according to this interface power default value, namely the output power (output power of recovery meets this interface power default value) lending at least one powered POE equipment is reclaimed, and be that described PD4 powers according to the output power reclaimed according to this interface power default value.If POE2 does not lend the output power of other POE equipment, or the output power that POE2 lends adds that self residual output power is still less than this interface power default value, POE2 then can borrow electric request message to carry out borrowing electricity by sending to neighbours POE equipment (i.e. POE1).Should borrow in electric request message to carry and cease by means of telecommunications.
Then, only comprise by means of electrical power numerical value if borrow in telecommunications breath, and POE1 determines that self residual output power numerical value borrows electrical power numerical value described in being more than or equal to, so POE1 then can send to borrowing the POE2 of electricity confirmation message of powering, to notify that POE2, POE1 can for its power supplies.POE2 is after the power supply confirmation message receiving POE1 transmission, confirm again self for this borrow electricity (namely for PD4) do not accept other POE power time, POE2 replys power supply response message to POE1, POE1 is after the power supply response message receiving POE2 reply, for POE2 powers, the output power that POE2 utilizes POE1 to provide is powered for PD4.
If borrow telecommunications to cease the priority facility comprised by means of electrical power numerical value and POE2, and POE1 determines that self available output power numerical value borrows electrical power numerical value described in being more than or equal to, so POE1 then can send power supply confirmation message to borrowing the POE2 of electricity, and to notify POE2, POE1 can be its power supply.POE2 is after the power supply confirmation message receiving POE1 transmission, confirm again self for this borrow electricity (namely for PD4) do not accept other POE power time, POE2 replys power supply response message to POE1, POE1 is after the power supply response message receiving POE2 reply, calculate the output power total value to be recycled of POE1, and the output power of other priority facilities lower than the powered POE equipment of POE2 is lent in recovery, use the output power that reclaims and residue output power to power for POE2, the output power that POE2 utilizes POE1 to provide is powered for PD4.
Such as, in Fig. 4, the maximum output power of POE1 is 90W, lends each 40W of powered POE equipment POE3 and POE2 respectively, and its residue output power is 10W.The priority facility of POE3 is 2 grades, and the priority facility of POE4 is 3 grades.If now POE2 sends to POE1 and borrows electric request message, according to borrowing the telecommunications breath of borrowing in electric request message, POE1 learns that POE2 need borrow electric 40W, priority facility is 4 grades, when the residue output power of POE1 self is not enough, POE1 determines that the priority facility of this POE2 is greater than POE3 and POE4, so POE1 by POE2 high for priority facility namely borrow electrical power numerical value 40W to deduct the 30W that self residual output power 10W obtains be output power total value to be recycled.In this example, the output power total value that POE1 lends POE3 and POE4 is 80W, be greater than this output power total value 30W to be recycled, therefore according to the ascending order of priority facility, priority facility can be selected and is less than the minimum powered POE equipment POE3 of priority facility in the powered POE equipment of POE2.Then send to POE3 and borrow electric recovery message, it is the output power numerical value that POE3 powers that electricity recovery message should be borrowed to carry POE1, i.e. 30W, and to notify POE3, the output power recovery that POE1 will lend, namely stops powering to POE3.
Afterwards, force after POE1 waits for predetermined period to stop powering to the POE3 that priority facility is minimum, then utilize the output power reclaiming POE3 and residue output power to be powered to POE2 by power supply interface.
When PD4 leaves POE2, the output power that POE1 initiatively can be lent it by POE2 is returned.Concrete, POE2 sends also electricity notice message to POE1, POE1 should also after electricity notice message what receive that POE2 sends, can know that POE2 no longer needs to borrow electricity, therefore also electric confirmation message is replied to POE1 to POE2, know that to make POE2 POE1 will stop as its power supply, and POE1 stops powering for POE2.
In practical application, at each POE device start after LLDP function, mutually can notice the facility information of self between neighbours POE equipment, such as this facility information comprises the information such as equipment interface number, MAC Address.After the facility information receiving neighbours POE equipment, preserve the facility information of neighbours POE equipment.In view of this, above-mentioned message all can for carrying the LLDP message of expansion TLV (Type/Length/Value, type/length/value) field.
Concrete, if the type field in the expansion TLV field of LLDP message is the first value (e.g., 001), represent that this message is for borrowing electric request message, accordingly, Value field carries power supply information.
If the type field in the expansion TLV field of LLDP message is the second value (e.g., 010), represent that this message is for power supply confirmation message;
If the type field in the expansion TLV field of LLDP message is the 3rd value (e.g., 011), represent that this message is for power supply response message;
If the type field in the expansion TLV field of LLDP message be the 4th value (as, 100), represent that this message is for power supply recovery message, accordingly, it is the output power numerical value that the powered POE equipment receiving this message is powered that Value field carries the local POE equipment of power supply information;
If the type field in the expansion TLV field of LLDP message is the 5th value (e.g., 101), represent that this message is for refusal message;
If the type field in the expansion TLV field of LLDP message is the 6th value (e.g., 110), represent that this message notifies message for also electric;
If the type field in the expansion TLV field of LLDP message is the 7th value (e.g., 111), represent that this message is for also electric confirmation message;
It should be noted that, because LLDP message is multicast message, Value field in the expansion TLV field of therefore above-mentioned each LLDP message all needs the MAC Address of carrying object POE equipment, to make POE equipment when receiving above-mentioned each LLDP message, can determine that whether this LLDP message is by self process.That is, when POE equipment receives above-mentioned each LLDP message, the MAC Address that the Value field in the expansion TLV field of LLDP message is carried if determine is the MAC Address of self, then process accordingly for this message according to the value of the type field; If determine, the MAC Address that the Value field in the expansion TLV field of LLDP message is carried not is the MAC Address of self, then abandon this message.
Fig. 5 is the structural representation of electric supply installation of the present invention, and this device can be applied in POE equipment, and this electric supply installation can comprise receiving element 501, judging unit 502 and power supply unit 503, wherein:
Receiving element 501, borrows electric request message for what receive that neighbours POE equipment sends, described borrow in electric request message to carry cease by means of telecommunications;
According to described telecommunications breath of borrowing, judging unit 502, for judging whether self meets condition of power supply;
Power supply unit 503, for according to described borrow telecommunications breath to judge that self meets condition of power supply time, to borrow telecommunications to cease be that described neighbours POE equipment is powered by the power supply interface be connected with described neighbours POE equipment according to described.
Further, described power supply unit 503, if also for judging self to meet described condition of power supply according to described telecommunications breath of borrowing, send power supply confirmation message to described neighbours POE equipment; After the power supply response message receiving described neighbours POE device replied, perform described basis and borrow telecommunications breath to be that described neighbours POE equipment is powered by the power supply interface be connected with described neighbours POE equipment.
Further, described telecommunications breath of borrowing comprises by means of electrical power numerical value; Described condition of power supply specifically comprises: self residual output power numerical value is more than or equal to described by means of electrical power numerical value; Wherein, described residue output power numerical value is: the total output power numerical value of self is deducted the output power numerical value used and the output power numerical value lent, and obtains residue output power numerical value; Described power supply unit 503 specifically for: use self residual output power to be that described neighbours POE equipment is powered by described power supply interface according to described electrical power numerical value of borrowing.
Further, described telecommunications of borrowing ceases the priority facility comprised by means of electrical power numerical value and described neighbours POE equipment; Described condition of power supply specifically comprises: self available output power numerical value is more than or equal to described by means of electrical power numerical value; Wherein, described available output power numerical value is: compared by the priority facility of the priority facility and described neighbours POE equipment of using all powered POE equipment of described local POE equipment output power, the output power numerical value that all powered POE equipment priority facility being less than the priority facility of described neighbours POE equipment is borrowed, add residue output power numerical value, obtain available output power numerical value; Described residue output power numerical value is: the total output power numerical value of self is deducted the output power numerical value used and the output power numerical value lent, and obtains residue output power numerical value.Described power supply unit 503 specifically for: go out power total value to be recycled according to described electrical power numerical value and the self residual output power numerical computations of borrowing; At least one the powered POE equipment being less than the priority facility of described neighbours POE equipment for priority facility is stopped to power, to reclaim output power according to described power total value to be recycled; The output power and the residue output power that use recovery are that described neighbours POE equipment is powered by described power supply interface.
Further, described power supply unit 503, message is reclaimed in the power supply also sent at least one the powered POE equipment being less than the priority facility of described neighbours POE equipment to described priority facility, wherein, message is reclaimed for the power supply being sent to each powered POE equipment, it is the output power numerical value that this powered POE equipment is powered that this power supply recovery message carries local POE equipment, knows that described local POE equipment stops powering for this powered POE equipment to make this powered POE equipment.
Further, described power supply unit 503, also for when there being receiving end PD equipment to add described local POE equipment, obtains the interface power default value of the interface local POE equipment connecting described PD equipment; If determine, self residual output power is more than or equal to described interface power default value, uses self residual output power to be that described PD equipment is powered by described local POE equipment connecting the interface of described PD equipment; If determine, self residual output power is less than described interface power default value, and self residual output power adds that the output power numerical value lent is more than or equal to described interface power default value, according to described interface power default value, the order ascending according to priority facility reclaims the output power lending at least one powered POE equipment, and use the output power and self residual output power that reclaim, be that described PD equipment is powered according to described interface power default value.
Further, described power supply unit 503, if also for determining that self does not meet condition of power supply according to described telecommunications breath of borrowing, send refusal message to described neighbours POE equipment, to notify that described neighbours POE equipment cannot for its power supply.
Further, described power supply unit 503, if for receiving the also electricity notice message that described neighbours POE equipment sends, to described neighbours POE device replied also electric confirmation message, and stop powering for described neighbours POE equipment.
In addition, the electric supply installation that the present invention is applied to POE equipment can be consistent with the above-mentioned handling process being applied to the method for supplying power to of POE equipment in concrete handling process, and the present invention does not repeat them here.
Said apparatus can pass through software simulating, also hardware implementing can be passed through, for example is convenient, the hardware structure schematic diagram of electric supply installation place of the present invention POE equipment all can with reference to shown in figure 6, its basic hardware environment comprises CPU, forwarding chip, memory and other hardware, wherein memory device comprises machine readable instructions, and CPU reads and performs the function that machine readable instructions performs each unit in Fig. 5.
As can be seen from the execution mode of above various method and apparatus, the present invention supplying by setting up between adjacent POE equipment, being electrically connected, when POE equipment output power is not enough, can by the neighbours POE equipment meeting condition of power supply by the confession of setting up, electrically connected as it and powered, thus improve the power supply utilization rate of POE equipment, make equipment room dynamically can carry out borrowing electricity and also electricity, what effectively extend POE equipment can power supply interface quantity.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within the scope of protection of the invention.
Claims (16)
1. a method of supplying power to, be applied to local ethernet and power POE equipment, it is characterized in that, described method comprises:
What receive that neighbours POE equipment sends borrows electric request message, described borrow in electric request message to carry cease by means of telecommunications;
Judge whether self meets condition of power supply according to described telecommunications breath of borrowing, if so, to borrow telecommunications to cease be that described neighbours POE equipment is powered by the power supply interface be connected with described neighbours POE equipment according to described.
2. the method for claim 1, is characterized in that, described method also comprises:
If judge self to meet described condition of power supply according to described telecommunications breath of borrowing, send power supply confirmation message to described neighbours POE equipment;
After the power supply response message receiving described neighbours POE device replied, perform described basis and borrow telecommunications breath to be that described neighbours POE equipment is powered by the power supply interface be connected with described neighbours POE equipment.
3. the method for claim 1, is characterized in that, described telecommunications breath of borrowing comprises by means of electrical power numerical value;
Described condition of power supply specifically comprises:
Self residual output power numerical value is more than or equal to described by means of electrical power numerical value; Wherein, described residue output power numerical value is: the total output power numerical value of self is deducted the output power numerical value used and the output power numerical value lent, and obtains residue output power numerical value;
Described basis borrows telecommunications breath to be that described neighbours POE equipment is powered and specifically comprised by the power supply interface be connected with described neighbours POE equipment:
Self residual output power is used to be that described neighbours POE equipment is powered by described power supply interface according to described electrical power numerical value of borrowing.
4. the method for claim 1, is characterized in that, described telecommunications of borrowing ceases the priority facility comprised by means of electrical power numerical value and described neighbours POE equipment;
Described condition of power supply specifically comprises:
Self available output power numerical value is more than or equal to described by means of electrical power numerical value; Wherein, described available output power numerical value is: compared by the priority facility of the priority facility and described neighbours POE equipment of using all powered POE equipment of described local POE equipment output power, the output power numerical value that all powered POE equipment priority facility being less than the priority facility of described neighbours POE equipment is borrowed, add residue output power numerical value, obtain available output power numerical value; Described residue output power numerical value is: the total output power numerical value of self is deducted the output power numerical value used and the output power numerical value lent, and obtains residue output power numerical value;
Described basis borrows telecommunications breath to be that described neighbours POE equipment is powered and specifically comprised by the power supply interface be connected with described neighbours POE equipment:
Power total value to be recycled is gone out according to described electrical power numerical value and the self residual output power numerical computations of borrowing;
At least one the powered POE equipment being less than the priority facility of described neighbours POE equipment for priority facility is stopped to power, to reclaim output power according to described power total value to be recycled;
The output power and the residue output power that use recovery are that described neighbours POE equipment is powered by described power supply interface.
5. method as claimed in claim 4, it is characterized in that, after calculating power total value to be recycled, described method also comprises:
Message is reclaimed in the power supply that at least one the powered POE equipment being less than the priority facility of described neighbours POE equipment to described priority facility sends, wherein, message is reclaimed for the power supply being sent to each powered POE equipment, it is the output power numerical value that this powered POE equipment is powered that this power supply recovery message carries local POE equipment, knows that described local POE equipment stops powering for this powered POE equipment to make this powered POE equipment.
6. the method for claim 1, is characterized in that, described method also comprises:
When there being receiving end PD equipment to add described local POE equipment, obtain the interface power default value of the interface local POE equipment connecting described PD equipment;
If determine, self residual output power is more than or equal to described interface power default value, uses self residual output power to be that described PD equipment is powered by described local POE equipment connecting the interface of described PD equipment;
If determine, self residual output power is less than described interface power default value, and self residual output power adds that the output power numerical value lent is more than or equal to described interface power default value, according to described interface power default value, the order ascending according to priority facility reclaims the output power lending at least one powered POE equipment, and use the output power and self residual output power that reclaim, be that described PD equipment is powered according to described interface power default value.
7. the method for claim 1, is characterized in that, described method also comprises:
If determine that self does not meet condition of power supply according to described telecommunications breath of borrowing, send refusal message to described neighbours POE equipment, to notify that described neighbours POE equipment cannot for its power supply.
8. the method for claim 1, is characterized in that, ceasing by the power supply interface be connected with described neighbours POE equipment borrowing telecommunications described in described basis is that after described neighbours POE equipment is powered, described method also comprises:
If receive the also electricity notice message that described neighbours POE equipment sends, to described neighbours POE device replied also electric confirmation message, and stop powering for described neighbours POE equipment.
9. an electric supply installation, be applied to local POE equipment, it is characterized in that, described device comprises:
Receiving element, borrows electric request message for what receive that neighbours POE equipment sends, described borrow in electric request message to carry cease by means of telecommunications;
According to described telecommunications breath of borrowing, judging unit, for judging whether self meets condition of power supply;
Power supply unit, for according to described borrow telecommunications breath to judge that self meets condition of power supply time, to borrow telecommunications to cease be that described neighbours POE equipment is powered by the power supply interface be connected with described neighbours POE equipment according to described.
10. device as claimed in claim 1, is characterized in that, described power supply unit also for:
If judge self to meet described condition of power supply according to described telecommunications breath of borrowing, send power supply confirmation message to described neighbours POE equipment; After the power supply response message receiving described neighbours POE device replied, perform described basis and borrow telecommunications breath to be that described neighbours POE equipment is powered by the power supply interface be connected with described neighbours POE equipment.
11. methods as claimed in claim 9, is characterized in that, described telecommunications breath of borrowing comprises by means of electrical power numerical value;
Described condition of power supply specifically comprises:
Self residual output power numerical value is more than or equal to described by means of electrical power numerical value; Wherein, described residue output power numerical value is: the total output power numerical value of self is deducted the output power numerical value used and the output power numerical value lent, and obtains residue output power numerical value;
Described power supply unit specifically for:
Self residual output power is used to be that described neighbours POE equipment is powered by described power supply interface according to described electrical power numerical value of borrowing.
12. methods as claimed in claim 9, is characterized in that, described telecommunications of borrowing ceases the priority facility comprised by means of electrical power numerical value and described neighbours POE equipment;
Described condition of power supply specifically comprises:
Self available output power numerical value is more than or equal to described by means of electrical power numerical value; Wherein, described available output power numerical value is: compared by the priority facility of the priority facility and described neighbours POE equipment of using all powered POE equipment of described local POE equipment output power, the output power numerical value that all powered POE equipment priority facility being less than the priority facility of described neighbours POE equipment is borrowed, add residue output power numerical value, obtain available output power numerical value; Described residue output power numerical value is: the total output power numerical value of self is deducted the output power numerical value used and the output power numerical value lent, and obtains residue output power numerical value;
Described power supply unit specifically for:
Power total value to be recycled is gone out according to described electrical power numerical value and the self residual output power numerical computations of borrowing;
At least one the powered POE equipment being less than the priority facility of described neighbours POE equipment for priority facility is stopped to power, to reclaim output power according to described power total value to be recycled;
The output power and the residue output power that use recovery are that described neighbours POE equipment is powered by described power supply interface.
13. devices as claimed in claim 12, is characterized in that, described power supply unit also for:
Message is reclaimed in the power supply that at least one the powered POE equipment being less than the priority facility of described neighbours POE equipment to described priority facility sends, wherein, message is reclaimed for the power supply being sent to each powered POE equipment, it is the output power numerical value that this powered POE equipment is powered that this power supply recovery message carries local POE equipment, knows that described local POE equipment stops powering for this powered POE equipment to make this powered POE equipment.
14. devices as claimed in claim 9, is characterized in that, described power supply unit also for:
When there being receiving end PD equipment to add described local POE equipment, obtain the interface power default value of the interface local POE equipment connecting described PD equipment;
If determine, self residual output power is more than or equal to described interface power default value, uses self residual output power to be that described PD equipment is powered by described local POE equipment connecting the interface of described PD equipment;
If determine, self residual output power is less than described interface power default value, and self residual output power adds that the output power numerical value lent is more than or equal to described interface power default value, according to described interface power default value, the order ascending according to priority facility reclaims the output power lending at least one powered POE equipment, and use the output power and self residual output power that reclaim, be that described PD equipment is powered according to described interface power default value.
15. devices as claimed in claim 9, is characterized in that, described power supply unit also for:
If determine that self does not meet condition of power supply according to described telecommunications breath of borrowing, send refusal message to described neighbours POE equipment, to notify that described neighbours POE equipment cannot for its power supply.
16. devices as claimed in claim 9, is characterized in that, described power supply unit also for:
If receive the also electricity notice message that described neighbours POE equipment sends, to described neighbours POE device replied also electric confirmation message, and stop powering for described neighbours POE equipment.
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| CN201510029889.0A CN104618123B (en) | 2015-01-21 | 2015-01-21 | A kind of method of supplying power to and device |
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| CN201510029889.0A CN104618123B (en) | 2015-01-21 | 2015-01-21 | A kind of method of supplying power to and device |
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| CN104618123B (en) | 2018-10-26 |
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