CN104618123B - A kind of method of supplying power to and device - Google Patents
A kind of method of supplying power to and device Download PDFInfo
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- CN104618123B CN104618123B CN201510029889.0A CN201510029889A CN104618123B CN 104618123 B CN104618123 B CN 104618123B CN 201510029889 A CN201510029889 A CN 201510029889A CN 104618123 B CN104618123 B CN 104618123B
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Abstract
The present invention provides a kind of method of supplying power to and device, wherein this method includes：The electric request message of borrowing of neighbours' POE equipment transmission is received, it is described that carrying in electric request message is borrowed to borrow power information；Judge whether itself meets condition of power supply by means of power information according to described, if so, according to it is described by means of power information be neighbours POE equipment power supply by the power supply interface that is connected with the neighbours POE equipment, to improve POE equipment can power supply interface quantity.
Description
Technical field
The present invention relates to field of communication technology more particularly to a kind of method of supplying power to and device.
Background technology
PD (Powered Device, receiving end equipment) access have PSE (Power Sourcing Equipment,
Power end equipment) function of supplying power POE (Power Over Ethernet, Power over Ethernet) equipment when, can be by POE equipment
PSE Function detections to the PD, and be directly powered to the PD equipment by twisted-pair feeder.
Since every POE equipment has the upper limit of output power, for example, POE equipment has 30 interfaces, the POE equipment
Complete machine can at most provide the output power of 390W, it is specified that the exportable output power of each interface is 30W.So, if having
13 PD equipment access the POE equipment by 13 interfaces, then POE equipment then needs to provide the power supply of 390W for 13 interfaces
Power.However, since the POE equipment there remains most interface, it, can be because not having if there is new PD equipment access again at this time
There is remaining output power available, and by remaining interface can not be the PD equipment power supply newly accessed.
Invention content
In view of the drawbacks of the prior art, the present invention provides a kind of method of supplying power to and devices.
A kind of method of supplying power to provided by the invention is applied to local POE equipment, wherein this method includes：
The electric request message of borrowing of neighbours' POE equipment transmission is received, it is described that carrying in electric request message is borrowed to borrow power information；
Judge whether itself meets condition of power supply by means of power information according to described, if so, according to it is described borrow power information by with
The connected power supply interface of the neighbours POE equipment is powered for the neighbours POE equipment.
Being applied to local POE equipment for electric installation the present invention also provides a kind of, described device includes：
Receiving unit, the electric request message of borrowing for receiving the transmission of neighbours' POE equipment, described borrow carry in electric request message
By means of power information；
Judging unit, for judging whether itself meets condition of power supply by means of power information according to described；
When for judging that itself meets condition of power supply by means of power information according to, power information is borrowed according to described for power supply unit
It is powered for the neighbours POE equipment by the power supply interface being connected with the neighbours POE equipment.
Method of supplying power to and device provided by the invention, by establishing confession between adjacent POE equipment, being electrically connected,
When POE equipment output power deficiencies, can by meet the neighbours POE equipment of condition of power supply by the confession of foundation, electrically connected as it
Power supply, to improve POE equipment can power supply interface quantity.
Description of the drawings
Fig. 1 is a kind of network environment schematic diagram that the embodiment of the present invention is applied；
Fig. 2 is another network environment schematic diagram that the embodiment of the present invention is applied；
Fig. 3 is a kind of method of supplying power to flow diagram in the embodiment of the present invention；
Fig. 4 is the schematic diagram for having new PD equipment to be added in a kind of network environment applied in the embodiment of the present invention；
Fig. 5 is a kind of logical construction schematic diagram for electric installation in the embodiment of the present invention；
Fig. 6 is in the embodiment of the present invention for the hardware structure schematic diagram of local POE equipment where electric installation.
Specific implementation mode
To make the purpose of the application, technical solution and advantage are more clearly understood, referring to the drawings to application scheme
It is described in further detail.
In order to solve the problems in the existing technology, the present invention provides a kind of method of supplying power to and devices.
A kind of network environment schematic diagram that Fig. 1 is applied for method of supplying power to of the present invention, which illustrate the present invention to be applied to C/S
Specific environment under (Client/Server, client/server) framework, including convergence-level equipment, multiple access layer equipments with
And the PD equipment powered by access layer equipment.The convergence-level equipment and access layer equipment may each be POE equipment, moreover,
Can be the consistent POE equipment of specification, performance.In general, the performance of convergence-level equipment can be higher than access layer equipment.Fig. 1
In, POE1 is convergence-level equipment, and POE2, POE3 and POE4 are respectively access layer equipment, PD1, PD2 and PD3 be respectively by
The power receiving equipment of POE2, POE3 and POE4 power supply.The convergence-level equipment (POE1) respectively with access layer equipment (POE2, POE3
And POE4) neighbours POE equipment each other, and POE equipment has for powering or powered interface.When POE equipment is convergence-level
When equipment, which is power supply interface；When POE equipment is access layer equipment, which is as to be needed by electrical interface
Illustrate, POE equipment can include power supply interface and by electrical interface simultaneously, and power supply interface and can be same connect by electrical interface
Mouthful, which can be used to power, can be used for by electricity.The power supply interface of convergence-level equipment and access layer equipment by electricity
Interface transmits output power by the connection (link 1 shown in FIG. 1) of foundation, is also wrapped between convergence-level equipment and access layer equipment
LLDP (Link Layer Discovery Protocol, Link Layer Discovery Protocol) links (link 2 shown in FIG. 1) are included to carry
For the communication of LLDP messages.
Another network environment schematic diagram that Fig. 2 is applied for method of supplying power to of the present invention, which illustrate the present invention to be applied to
Specific environment under C/C (Client/Client, client/client) framework, including multiple access layer equipments (POE1,
POE2, POE3 and POE4) and by access layer equipment power each PD equipment (PD1, PD2, PD3 and PD4).The access layer
Equipment can be POE equipment.Each POE equipment has the interface that can be used to can be used for power supply by electricity.Wherein, POE1
And POE2, POE2 and POE3, POE3 and POE4 distinguish neighbours POE equipment each other, can lead between each neighbours POE equipment
Crossing can be used to can be used for the interface connected (link 1 shown in Fig. 2) of power supply by electricity to transmit output power, pass through
LLDP links (link 2 shown in Fig. 2) provide the communication of LLDP messages.
Referring to FIG. 3, for the processing flow schematic diagram of method of supplying power to provided by the invention, this method can be applied in POE
In equipment, which includes the following steps：
Step 301, the electric request message of borrowing of neighbours' POE equipment transmission is received, it is described that carrying in electric request message is borrowed to borrow electricity
Information.
Wherein, this for power information can only include borrow electric work rate score, or including：By means of electrical power data value and the neighbours
The priority facility of POE equipment.
Step 302, judge whether itself meets condition of power supply by means of power information according to described, if so, borrowing telecommunications according to described
Breath is powered by the power supply interface being connected with neighbours' POE equipment for neighbours' POE equipment.Wherein, condition of power supply can be：
Condition 1, self residual output power numerical value are greater than or equal to described by means of electric work rate score；Alternatively,
Condition 2, itself available output power numerical value are greater than or equal to described by means of electric work rate score.
If only including by means of electric work rate score for power information, condition of power supply is condition 1；If the power supply information includes：By means of electricity
The priority facility of power data value and neighbours' POE equipment, then condition of power supply is condition 2.
Wherein, remaining output power numerical value is：Total output power numerical value of local POE equipment is subtracted into used power supply
Magnitude of power and the output power numerical value lent, obtained output power numerical value are remaining output power numerical value.
Can be with output power numerical value：All equipment by electric POE equipment of local POE equipment output power will have been borrowed
Priority is compared with the priority facility of neighbours' POE equipment, if there is the priority facility by electric POE equipment to be less than the neighbour
Priority facility is less than all by electric POE of the priority facility of neighbours' POE equipment by the priority facility for occupying POE equipment
The numerical value for the output power that equipment is borrowed, in addition remaining output power numerical value, obtained numerical value is available output power numerical value.
Further, electric work rate score is borrowed when only including for power information, and when local POE equipment meets condition 1, according to institute
It states and is specifically included for neighbours' POE equipment power supply by the power supply interface being connected with neighbours' POE equipment by means of power information：
It is powered for neighbours' POE equipment by power supply interface using self residual output power according to by means of electric work rate score.
When power supply information includes borrowing the priority facility of electric work rate score and neighbours' POE equipment, and local POE equipment meets
When condition 2, powered for neighbours' POE equipment by the power supply interface being connected with neighbours' POE equipment by means of power information according to described
It specifically includes：
Go out power total value to be recycled according to by means of electric work rate score and self residual output power numerical computations, according to waiting for back
It receives power total value and stops being that at least one of priority facility that priority facility is less than neighbours' POE equipment is supplied by electric POE equipment
Electricity, to recycle output power, (the recycling output power value adds remaining output power value and is not less than by means of electric work rate score, makes
By power supply interface it is the power supply of neighbours' POE equipment with the output power of recycling and remaining output power.
Further, after local POE equipment calculates power total value to be recycled, this method further includes：
At least one of priority facility for being less than neighbours' POE equipment to priority facility is supplied by electric POE equipment transmission
Electricity recycling message, wherein recycled message by the power supply of electric POE equipment for each is sent to, which recycles message and carry
It is the output power numerical value powered by electric POE equipment to have local POE equipment, so as to should be known that local POE was set by electric POE equipment
It is standby to stop as that be powered by electric POE equipment.
It should be noted that going out power to be recycled according to by means of electric work rate score and self residual output power numerical computations
Total value can be specially：Power total value to be recycled is obtained with self residual output power numerical value is subtracted by means of electric work rate score.If meter
The power total value to be recycled calculated is more than 0, then carries out Power Recovery according to calculated power total value to be recycled.If calculated
Power total value to be recycled is not more than 0, then illustrates that the remaining output power value of local POE equipment is more than and borrow electric work rate score, therefore,
Regenerative power is not needed, is powered for neighbours' POE equipment using remaining output power.
In one embodiment, since neighbours POE equipment may be powered to multiple POE device requests simultaneously, to avoid supplying
Electrical conflict, after local POE equipment determines and itself meets condition of power supply, before powering for neighbours' POE equipment, it is also necessary to really
Recognize neighbours' POE equipment and borrow the power supply whether electricity receives local POE equipment for this, therefore this method can also include：
Power supply confirmation message is sent to neighbours' POE equipment, in the power supply response message for receiving neighbours' POE device replieds
Afterwards, it is powered for neighbours' POE equipment by the power supply interface being connected with neighbours' POE equipment further according to by means of power information.If the neighbour
Occupy POE equipment borrows electricity to receive the power supply of other POE equipment for this, then local POE device replieds power supply will not be backed towards
Response message is powered correspondingly, local POE equipment will not be neighbours' POE equipment.Therefore, multiple POE equipment be can avoid simultaneously
It powers for neighbours' POE equipment.
In one embodiment, it is neighbours POE by the power supply interface being connected with neighbours' POE equipment by means of power information in basis
After equipment power supply, this method further includes：If the also electric notice message of neighbours' POE equipment transmission is received, to neighbours' POE equipment
Also electric confirmation message is replied, and stops being that neighbours' POE equipment is powered.
In one embodiment, it if determining that itself is unsatisfactory for condition of power supply according to by means of power information, is sent to neighbours' POE equipment
Refuse message, to notify the neighbours POE equipment that can not power for it.
It is specific according to determining that itself is unsatisfactory for condition of power supply by means of power information if only including borrowing electric work rate score for power information
According to determine the condition 1 that itself is unsatisfactory for by means of power information, i.e., the remaining output power numerical value of local POE equipment, which is less than, borrows electrical power
Numerical value.
If power supply information includes：By means of electrical power data value and the priority facility of neighbours' POE equipment, then according to by means of telecommunications
Breath determines that it is specially the i.e. local POE equipment according to determining the condition 2 that itself is unsatisfactory for by means of power information itself to be unsatisfactory for condition of power supply
Output power numerical value can be used to be less than and borrow electric work rate score.
In one embodiment, this method further includes：When there is PD equipment that local POE equipment is added, obtains local POE and set
The interface power default value of the standby upper interface for connecting the PD equipment；If it is determined that self residual output power is greater than or equal to the interface
Power default value, using self residual output power by connecting the interface of the PD equipment in local POE equipment as the PD equipment
Power supply；If it is determined that self residual output power is less than the interface power default value, and self residual output power is added and has been lent
Output power numerical value be greater than or equal to the interface power default value, according to the interface power default value, according to priority facility
At least one output power by electric POE equipment is lent in ascending sequence recycling, and using the output power of recycling and
Self residual output power is powered according to the interface power default value for the PD equipment；If it is determined that self residual output power adds
On the output power numerical value lent be less than the interface power default value, then borrowed to the transmission of neighbours' POE equipment of local POE equipment
Electric request message, to carry out borrowing electricity.
The embodiment of the present invention using local POE equipment as C/S frameworks in for the expansion equipment (POE1) powered, to local
POE equipment is described further to neighbours POE equipment (POE2) power supply.C/S framves can be referred to when applied to C/C frameworks
Process flow when structure, the present invention will not enumerate.
Referring to FIG. 4, when neighbours' POE equipment POE2 is the access layer equipment under C/S frameworks, POE2 can be to be connected thereto
The power supply of multiple PD equipment, when it is in PD1 power supply process, if having new PD equipment PD4 that POE2 is added, then POE2 is obtained first
The interface power default value for the interface that the PD4 with the new addition is connected is taken, and checks output power that POE2 is provided whether
The upper limit is reached, that is, after checking that POE2 provides output power for PD1, if also have remaining output power.If the not up to upper limit
(having remaining output power), and remaining output power is greater than or equal to the interface power default value, then it is preferentially remaining using POE2
Output power by power supply interface be PD4 power；If having reached the upper limit (without remaining output power) or the remaining confessions of POE2
Electrical power is less than the interface power default value, then then can check whether itself has the confession for lending other POE equipment by POE2
Electrical power, if so, and the output power lent be greater than or equal to the interface power default value plus self residual output power,
Then check to POE2 borrow electricity the priority facility by electric POE equipment, and according to the ascending sequence of priority facility according to
The interface power default value stop thereto it is at least one by electric POE equipment power, i.e., recycling lend it is at least one by electric POE
The output power (output power of recycling meets the interface power default value) of equipment, and pressed according to the output power of recycling
It powers for the PD4 according to the interface power default value.If POE2 does not lend the output power or POE2 of other POE equipment
For the output power lent plus self residual output power still less than the interface power default value, POE2 then can be by neighbour
Occupying POE equipment (i.e. POE1) transmission borrows electric request message to carry out borrowing electricity.It should borrow to carry in electric request message and borrow power information.
Then, if by means of only including borrowing electric work rate score, and POE1 determines that self residual output power numerical value is big in power information
Electric work rate score is borrowed described in or equal to, then POE1 can then send power supply confirmation message to the POE2 by means of electricity, to notify
POE2, POE1 can power for it.POE2 is after the power supply confirmation message for receiving POE1 transmissions, then confirms that itself is directed to this
When not receiving other POE power supplies by means of electricity (being directed to PD4), POE2 replys power supply response message to POE1, and POE1 is being received
It after the power supply response message that POE2 is replied, powers for POE2, POE2 is powered using the POE1 output powers provided for PD4.
If including the priority facility by means of electric work rate score and POE2 by means of power information, and POE1 determines itself available power supply
Magnitude of power borrows electric work rate score described in being greater than or equal to, then POE1 can then send power supply confirmation report to the POE2 by means of electricity
Text, to notify POE2, POE1 that can power for it.POE2 is after the power supply confirmation message for receiving POE1 transmissions, then confirms certainly
When body borrows electricity (being directed to PD4) not receive other POE power supplies for this, POE2 replys power supply response message to POE1,
POE1 calculates the output power total value to be recycled of POE1, and recycle and borrow after the power supply response message for receiving POE2 replies
It is less than the output power by electric POE equipment of POE2 to other equipment priority, the output power using recycling and remaining power supply
Power is powered for POE2, and POE2 is powered using the POE1 output powers provided for PD4.
For example, the maximum output power of POE1 is 90W in Fig. 4, lend respectively each by electric POE equipment POE3 and POE2
40W, remaining output power are 10W.The priority facility of POE3 is 2 grades, and the priority facility of POE4 is 3 grades.If at this time
POE2 is sent to POE1 borrows electric request message, and POE1 learns that POE2 need to borrow electricity 40W according to by means of in electric request message by means of power information,
Priority facility is 4 grades, and in the remaining output power deficiency of POE1 itself, POE1 determines that the priority facility of the POE2 is more than
POE3 and POE4, then the high POE2 of priority facility is subtracted self residual for electric work by POE1 by means of electric work rate score 40W
The 30W that rate 10W is obtained is output power total value to be recycled.In this example, POE1 lends the output power of POE3 and POE4
Total value is 80W, is more than the output power total value 30W to be recycled, therefore can be selected according to the ascending sequence of priority facility
Extraction device priority it is minimum less than the priority facility in by electric POE equipment of POE2 by electric POE equipment POE3.Then to
POE3 is sent recycles message by means of electric, is somebody's turn to do and borrows the electric message carrying POE1 that recycles for the output power numerical value of POE3 power supplies, i.e. 30W, with
It notifies POE3, POE1 to recycle the output power of lending, that is, stops powering to POE3.
Later, POE1 forces to stop powering to the POE3 of priority facility minimum after waiting for predetermined period, then utilizes back
The output power and remaining output power for receiving POE3 are powered by power supply interface to POE2.
When PD4 leaves POE2, POE1 actively can be lent its output power and returned by POE2.Specifically, POE2
Also electric notice message is sent to POE1, and POE1 should would know that POE2 no longer after also electric notice message receive POE2 transmissions
It needs to borrow electricity, therefore also electric confirmation message is replied to POE1 to POE2, so that POE2 knows that POE1 will stop powering for it, and
And POE1 stops being that POE2 powers.
In practical application, can mutually it be noticed after each POE equipment starts LLDP functions, between neighbours' POE equipment certainly
The facility information of body, such as the facility information include the information such as equipment interface number, MAC Address.Receiving neighbours' POE equipment
After facility information, the facility information of neighbours' POE equipment is preserved.In view of this, above-mentioned message all can be carry extension TLV
The LLDP messages of (Type/Length/Value, type/length/value) field.
Specifically, if the type field in the extension TLV fields of LLDP messages is the first value (e.g., 001), the message is indicated
To borrow electric request message, correspondingly, Value fields are carried for power information.
If the type field in the extension TLV fields of LLDP messages is second value (e.g., 010), indicate that the message is power supply
Confirmation message；
If the type field in the extension TLV fields of LLDP messages is third value (e.g., 011), indicate that the message is power supply
Response message；
If the type field in the extension TLV fields of LLDP messages is the 4th value (e.g., 100), indicate that the message is power supply
Message is recycled, correspondingly, it is to receive being powered by electric POE equipment for the message that Value fields, which are carried for power information local POE equipment,
Output power numerical value；
If the type field in the extension TLV fields of LLDP messages is the 5th value (e.g., 101), indicate that the message is refusal
Message；
If the type field in the extension TLV fields of LLDP messages is the 6th value (e.g., 110), indicate that the message is also electric
Notice message；
If the type field in the extension TLV fields of LLDP messages is the 7th value (e.g., 111), indicate that the message is also electric
Confirmation message；
It should be noted that since LLDP messages are multicast message, in the extension TLV fields of above-mentioned each LLDP messages
Value fields be required to carry purpose POE equipment MAC Address so that POE equipment is receiving above-mentioned each LLDP messages
When, it may be determined that whether the LLDP messages are handled by itself.That is, when POE equipment receives above-mentioned each LLDP messages,
If it is determined that the MAC Address that the Value fields in the extension TLV fields of LLDP messages carry is the MAC Address of itself, then basis
The value of the type field is handled accordingly for the message；If it is determined that the Value fields in the extension TLV fields of LLDP messages
The MAC Address of carrying is not the MAC Address of itself, then abandons the message.
Fig. 5 is structural schematic diagram of the present invention for electric installation, which can apply in POE equipment, this can for electric installation
To include receiving unit 501, judging unit 502 and power supply unit 503, wherein：
Receiving unit 501, the electric request message of borrowing for receiving the transmission of neighbours' POE equipment are described to borrow in electric request message
It carries and borrows power information；
Judging unit 502, for judging whether itself meets condition of power supply by means of power information according to described；
When for judging that itself meets condition of power supply by means of power information according to, telecommunications is borrowed according to described for power supply unit 503
Breath is powered by the power supply interface being connected with the neighbours POE equipment for the neighbours POE equipment.
Further, said supply unit 503, if being additionally operable to be judged itself to meet the power supply by means of power information according to described
Condition sends power supply confirmation message to the neighbours POE equipment；Receive the neighbours POE device replieds for electroresponse
After message, it is that the neighbours POE is set by the power supply interface being connected with the neighbours POE equipment to execute the basis by means of power information
Available electricity.
Further, described to borrow power information including borrowing electric work rate score；The condition of power supply specifically includes：Self residual supplies
Electric work rate score is greater than or equal to described by means of electric work rate score；Wherein, the remaining output power numerical value is：By the total confession of itself
The output power numerical value that electric work rate score subtracts used output power numerical value and lent obtains remaining output power number
Value；Said supply unit 503 is specifically used for：Pass through the confession using self residual output power by means of electric work rate score according to described
Electrical interface is powered for the neighbours POE equipment.
Further, described by means of power information includes priority facility by means of electric work rate score and the neighbours POE equipment；
The condition of power supply specifically includes：Itself available output power numerical value is greater than or equal to described by means of electric work rate score；Wherein, described
Can be with output power numerical value：All equipment by electric POE equipment for having borrowed the local POE equipment output powers is preferential
Grade is compared with the priority facility of the neighbours POE equipment, and priority facility is less than to the equipment of the neighbours POE equipment
All output power numerical value borrowed by electric POE equipment of priority, in addition remaining output power numerical value, obtains available for electric work
Rate score；It is described residue output power numerical value be：The total output power numerical value of itself is subtracted into used output power numerical value
And the output power numerical value lent, obtain remaining output power numerical value.Said supply unit 503 is specifically used for：According to institute
It states and goes out power total value to be recycled by means of electric work rate score and self residual output power numerical computations；According to the power to be recycled
Total value stops being that at least one of priority facility that priority facility is less than the neighbours POE equipment is powered by electric POE equipment,
To recycle output power；The use of the output power and remaining output power of recycling by the power supply interface is the neighbours
POE equipment is powered.
Further, said supply unit 503 are additionally operable to be less than the neighbours POE equipment to the priority facility
Message is recycled at least one power supply sent by electric POE equipment of priority facility, wherein for being sent to each by electricity
Message is recycled in the power supply of POE equipment, and it is that this is supplied by electric POE equipment power supply that power supply recycling message, which carries local POE equipment,
Electric work rate score, so as to should be known that the local POE equipment stopped as that should be powered by electric POE equipment by electric POE equipment.
Further, said supply unit 503 are additionally operable to when there is receiving end PD equipment that the local POE equipment is added,
Obtain the interface power default value for the interface that the PD equipment is connected in the POE equipment of local；If it is determined that self residual output power
More than or equal to the interface power default value, using self residual output power by connecting institute in the local POE equipment
The interface of PD equipment is stated to power for the PD equipment；If it is determined that self residual output power is less than the interface power default value,
And self residual output power adds the output power numerical value lent and is greater than or equal to the interface power default value, according to institute
Interface power default value is stated, lends and at least one is supplied by electric POE equipment according to the ascending sequence recycling of priority facility
Electrical power, and be described according to the interface power default value using the output power and self residual output power of recycling
PD equipment is powered.
Further, said supply unit 503 itself are unsatisfactory for power supply item if being additionally operable to determine by means of power information according to described
Part sends refusal message, to notify the neighbours POE equipment that can not power for it to the neighbours POE equipment.
Further, said supply unit 503, if the also electricity notice report sent for receiving the neighbours POE equipment
Text to the also electric confirmation message of the neighbours POE device replieds, and stops being that the neighbours POE equipment is powered.
In addition, the present invention be applied to POE equipment for electric installation in specific process flow can with above application in
The process flow of the method for supplying power to of POE equipment is consistent, and details are not described herein by the present invention.
Above-mentioned apparatus can be by software realization, can also be by hardware realization, and convenient for example, the present invention is for electric installation
The hardware structure schematic diagram of place POE equipment can refer to shown in Fig. 6, and basic hardware environment includes CPU, forwarding core
Piece, memory and other hardware, wherein memory device include machine readable instructions, and CPU reads and executes machine readable finger
Enable the function of executing each unit in Fig. 5.
From can be seen that the present invention in the embodiment of any of the above method and apparatus by between adjacent POE equipment
It establishes and supplies, is electrically connected, in POE equipment output power deficiencies, can foundation be passed through by the neighbours' POE equipment for meeting condition of power supply
Confession, electrically connected as its power supply, to improve the power supply utilization rate of POE equipment so that equipment room can be carried out dynamically
By means of electric and also electricity, effectively extend POE equipment can power supply interface quantity.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent substitution, improvement and etc. done should be included within the scope of protection of the invention god.
Claims (16)
1. a kind of method of supplying power to is applied to local ethernet power supply POE equipment, which is characterized in that the method includes：
The electric request message of borrowing of neighbours' POE equipment transmission is received, it is described that carrying in electric request message is borrowed to borrow power information；
Judge whether itself meets condition of power supply by means of power information according to described, if so, according to it is described borrow power information by with it is described
The connected power supply interface of neighbours' POE equipment is powered for the neighbours POE equipment.
2. the method as described in claim 1, which is characterized in that the method further includes：
If judging by means of power information itself to meet the condition of power supply according to described, sends power supply to the neighbours POE equipment and confirm
Message；
After the power supply response message for receiving the neighbours POE device replieds, execute the basis by means of power information by with institute
The connected power supply interface of neighbours' POE equipment is stated to power for the neighbours POE equipment.
3. the method as described in claim 1, which is characterized in that described to borrow power information including borrowing electric work rate score；
The condition of power supply specifically includes：
Self residual output power numerical value is greater than or equal to described by means of electric work rate score；Wherein, the remaining output power numerical value
For：The output power numerical value that the total output power numerical value of itself is subtracted used output power numerical value and lent, obtains
To remaining output power numerical value；
The basis borrows power information to power for the neighbours POE equipment by the power supply interface being connected with the neighbours POE equipment
It specifically includes：
According to it is described borrow electric work rate score using self residual output power by the power supply interface be the neighbours POE equipment
Power supply.
4. the method as described in claim 1, which is characterized in that described to borrow power information including borrowing electric work rate score and the neighbour
Occupy the priority facility of POE equipment；
The condition of power supply specifically includes：
Itself available output power numerical value is greater than or equal to described by means of electric work rate score；Wherein, described to use output power numerical value
For：By all priority facilities by electric POE equipment for having borrowed the local POE equipment output powers and the neighbours POE
The priority facility of equipment is compared, by priority facility be less than the neighbours POE equipment priority facility it is all by
The output power numerical value that electric POE equipment is borrowed, in addition remaining output power numerical value, obtains available output power numerical value；It is described surplus
Remaining output power numerical value is：The confession that the total output power numerical value of itself is subtracted used output power numerical value and lent
Electric work rate score obtains remaining output power numerical value；
The basis borrows power information to power for the neighbours POE equipment by the power supply interface being connected with the neighbours POE equipment
It specifically includes：
Electric work rate score and self residual output power numerical computations is borrowed to go out power total value to be recycled according to described；
Stop being that priority facility is less than the priority facility of the neighbours POE equipment extremely according to the power total value to be recycled
Few one is powered by electric POE equipment, to recycle output power；
It is powered for the neighbours POE equipment by the power supply interface using the output power and remaining output power of recycling.
5. method as claimed in claim 4, which is characterized in that after calculating power total value to be recycled, the method is also wrapped
It includes：
It is less than at least one of the priority facility of the neighbours POE equipment to the priority facility to be sent by electric POE equipment
Power supply recycle message, wherein for be sent to each by electric POE equipment power supply recycle message, the power supply recycle message
It is the output power numerical value powered by electric POE equipment to carry local POE equipment, so as to should be known by electric POE equipment described
Local POE equipment stops to be powered by electric POE equipment.
6. the method as described in claim 1, which is characterized in that the method further includes：
When there is receiving end PD equipment that the local POE equipment is added, obtains and connect connecing for the PD equipment in the POE equipment of local
The interface power default value of mouth；
If it is determined that self residual output power is greater than or equal to the interface power default value, it is logical using self residual output power
It crosses and connects the interface of the PD equipment in the local POE equipment as PD equipment power supply；
If it is determined that self residual output power is less than the interface power default value, and self residual output power is added and has been lent
Output power numerical value be greater than or equal to the interface power default value, it is excellent according to equipment according to the interface power default value
At least one output power by electric POE equipment is lent in the ascending sequence recycling of first grade, and uses the output power of recycling
And self residual output power, it powers for the PD equipment according to the interface power default value.
7. the method as described in claim 1, which is characterized in that the method further includes：
If determining that itself is unsatisfactory for condition of power supply by means of power information according to described, refusal message is sent to the neighbours POE equipment, with
Notify the neighbours POE equipment that can not power for it.
8. the method as described in claim 1, which is characterized in that described in the basis borrow power information by with the neighbours
The connected power supply interface of POE equipment is after the neighbours POE equipment is powered, and the method further includes：
If receiving the also electric notice message that the neighbours POE equipment is sent, report is confirmed to the neighbours POE device replieds also electricity
Text, and stop being that the neighbours POE equipment is powered.
9. a kind of for electric installation, it is applied to local POE equipment, which is characterized in that described device includes：
Receiving unit, the electric request message of borrowing for receiving the transmission of neighbours' POE equipment, it is described borrow to carry in electric request message borrow electricity
Information；
Judging unit, for judging whether itself meets condition of power supply by means of power information according to described；
Power supply unit passes through according to described by means of power information when for judging that itself meets condition of power supply by means of power information according to
The power supply interface being connected with the neighbours POE equipment is powered for the neighbours POE equipment.
10. device as claimed in claim 9, which is characterized in that said supply unit is additionally operable to：
If judging by means of power information itself to meet the condition of power supply according to described, sends power supply to the neighbours POE equipment and confirm
Message；After the power supply response message for receiving the neighbours POE device replieds, execute the basis by means of power information by with institute
The connected power supply interface of neighbours' POE equipment is stated to power for the neighbours POE equipment.
11. device as claimed in claim 9, which is characterized in that described to borrow power information including borrowing electric work rate score；
The condition of power supply specifically includes：
Self residual output power numerical value is greater than or equal to described by means of electric work rate score；Wherein, the remaining output power numerical value
For：The output power numerical value that the total output power numerical value of itself is subtracted used output power numerical value and lent, obtains
To remaining output power numerical value；
Said supply unit is specifically used for：
According to it is described borrow electric work rate score using self residual output power by the power supply interface be the neighbours POE equipment
Power supply.
12. device as claimed in claim 9, which is characterized in that described to borrow power information include by means of electric work rate score and described
The priority facility of neighbours' POE equipment；
The condition of power supply specifically includes：
Itself available output power numerical value is greater than or equal to described by means of electric work rate score；Wherein, described to use output power numerical value
For：By all priority facilities by electric POE equipment for having borrowed the local POE equipment output powers and the neighbours POE
The priority facility of equipment is compared, by priority facility be less than the neighbours POE equipment priority facility it is all by
The output power numerical value that electric POE equipment is borrowed, in addition remaining output power numerical value, obtains available output power numerical value；It is described surplus
Remaining output power numerical value is：The confession that the total output power numerical value of itself is subtracted used output power numerical value and lent
Electric work rate score obtains remaining output power numerical value；
Said supply unit is specifically used for：
Electric work rate score and self residual output power numerical computations is borrowed to go out power total value to be recycled according to described；
Stop being that priority facility is less than the priority facility of the neighbours POE equipment extremely according to the power total value to be recycled
Few one is powered by electric POE equipment, to recycle output power；
It is powered for the neighbours POE equipment by the power supply interface using the output power and remaining output power of recycling.
13. device as claimed in claim 12, which is characterized in that said supply unit is additionally operable to：
It is less than at least one of the priority facility of the neighbours POE equipment to the priority facility to be sent by electric POE equipment
Power supply recycle message, wherein for be sent to each by electric POE equipment power supply recycle message, the power supply recycle message
It is the output power numerical value powered by electric POE equipment to carry local POE equipment, so as to should be known by electric POE equipment described
Local POE equipment stops to be powered by electric POE equipment.
14. device as claimed in claim 9, which is characterized in that said supply unit is additionally operable to：
When there is receiving end PD equipment that the local POE equipment is added, obtains and connect connecing for the PD equipment in the POE equipment of local
The interface power default value of mouth；
If it is determined that self residual output power is greater than or equal to the interface power default value, it is logical using self residual output power
It crosses and connects the interface of the PD equipment in the local POE equipment as PD equipment power supply；
If it is determined that self residual output power is less than the interface power default value, and self residual output power is added and has been lent
Output power numerical value be greater than or equal to the interface power default value, it is excellent according to equipment according to the interface power default value
At least one output power by electric POE equipment is lent in the ascending sequence recycling of first grade, and uses the output power of recycling
And self residual output power, it powers for the PD equipment according to the interface power default value.
15. device as claimed in claim 9, which is characterized in that said supply unit is additionally operable to：
If determining that itself is unsatisfactory for condition of power supply by means of power information according to described, refusal message is sent to the neighbours POE equipment, with
Notify the neighbours POE equipment that can not power for it.
16. device as claimed in claim 9, which is characterized in that said supply unit is additionally operable to：
If receiving the also electric notice message that the neighbours POE equipment is sent, report is confirmed to the neighbours POE device replieds also electricity
Text, and stop being that the neighbours POE equipment is powered.
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| Application Number | Priority Date | Filing Date | Title |
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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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| CN106295978A (en) * | 2016-08-02 | 2017-01-04 | 赵培 | The statistical estimation system of work safety accident and method |
| CN107979474B (en) | 2016-10-21 | 2020-06-26 | 华为技术有限公司 | Network device and power supply method |
| CN113810202B (en) * | 2020-06-17 | 2022-12-13 | 华为技术有限公司 | Method and apparatus for managing power supply, power supply device, and computer readable medium |
| CN113938330B (en) | 2020-06-29 | 2022-12-30 | 华为技术有限公司 | Connection mode identification method, power supply device, power receiving device, and storage medium |
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| US7203849B2 (en) * | 2003-12-12 | 2007-04-10 | Hewlett-Packard Development Company, L.P. | Method and system for distributing power to networked devices |
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