CN109600235A - The power supply management method and device of PoE system - Google Patents
The power supply management method and device of PoE system Download PDFInfo
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- CN109600235A CN109600235A CN201811383804.9A CN201811383804A CN109600235A CN 109600235 A CN109600235 A CN 109600235A CN 201811383804 A CN201811383804 A CN 201811383804A CN 109600235 A CN109600235 A CN 109600235A
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- 238000007726 management method Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 16
- 238000004364 calculation method Methods 0.000 claims abstract description 8
- 230000005611 electricity Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 8
- 230000006870 function Effects 0.000 description 7
- 238000012545 processing Methods 0.000 description 7
- 238000004590 computer program Methods 0.000 description 5
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/10—Current supply arrangements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/005—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection avoiding undesired transient conditions
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Abstract
The invention discloses a kind of power supply management method of PoE system and devices, this method comprises: determining the available output power of the PoE system according to the status information of at least two power module；The actual power power of the PoE system is determined according to the status information of each supply port of the PoE power control module；The remaining output power of the PoE system according to the actual power power calculation of the available output power of the PoE system and the PoE system；The supply port for needing to close in each supply port of the PoE power control module is determined according to the remaining output power of the PoE system.The program may insure the normal use of most of PD equipment.
Description
Technical field
The present invention relates to field of communication technology, espespecially a kind of Power over Ethernet (Power over Ethernet, PoE) system
The power supply management method and device of system.
Background technique
PoE system includes power supply end equipment (Power Sourcing Equipment, PSE) and receiving end equipment (Power
Device, PD) two parts, in which: PSE is PD power supply, in ethernet networks through same on Double-strand transmission electric power and data to PD
The output power of the entire PoE system of Shi Guanli can be the network equipments such as interchanger, the router for supporting PoE function；PD receives
The power supply of PSE, can be Internet protocol (Internet Protocol, IP) phone, network security video camera, palm PC,
The ethernet devices such as charger for mobile phone.
PSE generally includes power module, central processing unit (Central Processing Unit, CPU), PoE for automatically controlled
Molding block etc..Wherein, power module may include multiple power modules, PoE in PSE for providing the output power of POE system
The available output power of system is the sum of the output power of each power module, and setting can connect PD on PoE power control module
Supply port.When the available output power of PoE system is less than actual power power (the i.e. PoE power control module of PoE system
The sum of the actual power power of each supply port) when, then need to be managed the output power of PoE system, otherwise can
Lead to PoE system abnormal electrical power supply or failure.
The output power of existing PoE system is managed by the CPU of PSE, since CPU is serially executed, line
For journey than more, real-time is poor, when some power module in PSE because extract, turn off or it is abnormal lead to PoE system can
When being unable to satisfy actual power power (i.e. the actual power power of PoE system) of all supply ports with output power, CPU is not
Part supply port can be closed in time, cause the actual power power of PoE system to be greater than the available output power of PoE, this will
Cause other power module overload protections, stops output power output, and then all supply ports is caused all to be closed, influence institute
There is the normal use of PD equipment.
Summary of the invention
The embodiment of the present invention provides the power supply management method and device of a kind of PoE system, deposits in the prior art to solve
When some power module exception in PSE, CPU cannot close part supply port in time, lead to all supply ports
The problem of being all closed, influencing the normal use of all PD equipment.
According to embodiments of the present invention, a kind of power supply management method with PoE system is provided, the PoE system include PSE and
PD, the PSE include that at least two power modules, programmable logic device and PoE power control module, the method are applied
In the programmable logic device, which comprises
The available output power of the PoE system is determined according to the status information of at least two power module；
The reality of the PoE system is determined according to the status information of each supply port of the PoE power control module
Output power；
The PoE system according to the actual power power calculation of the available output power of the PoE system and the PoE system
The remaining output power of system；
In each supply port for determining the PoE power control module according to the remaining output power of the PoE system
The supply port for needing to close.
Specifically, determining the available for electric work of the PoE system according to the status information of at least two power module
Rate specifically includes:
The status information of at least two power module is obtained, the status information of at least two power module includes
Information in place, output power and the power supply state of corresponding power module；
Determining that information in place is is and power supply state is normal power module to obtain power module in place；
The output power of the power module in place is added up, the available output power of the PoE system is obtained.
Specifically, determining the PoE system according to the status information of each supply port of the PoE power control module
Actual power power, specifically include:
Obtain the status information of each supply port of the PoE power control module, the shape of each supply port
State information includes port-mark, use information and the actual power power of corresponding supply port；
It determines the supply port that use information is yes, obtains using supply port；
It is added up described using the actual power power of supply port, obtains the actual power function of the PoE system
Rate.
Specifically, determining each power supply of the PoE power control module according to the remaining output power of the PoE system
The supply port for needing to close in port, specifically includes:
Determine whether the remaining output power of the PoE system is less than given threshold；
If it is determined that the remaining output power of the PoE system is less than the given threshold, it is determined that the PoE power supply control
The supply port of module needs to close quantity；
Indicate the confession for needing to close quantity described in setting orderly close-down of the PoE power control module according to port-mark
Electric port.
Specifically, the supply port of the determining PoE power control module needs to close quantity, specifically include:
Determine the greatest requirements output power of any supply port of the PoE power control module；
By the remaining output power of the PoE system divided by the greatest requirements output power and round numbers, obtain described
The supply port of PoE power control module needs to close quantity.
According to embodiments of the present invention, a kind of power supply management device of PoE system is also provided, the PoE system include PSE and
PD, the PSE include that at least two power modules, programmable logic device and PoE power control module, described device are applied
In the programmable logic device, described device includes:
First determining module, for determining the PoE system according to the status information of at least two power module
Output power can be used；
Second determining module, the status information for each supply port according to the PoE power control module determine
The actual power power of the PoE system；
Computing module, for according to the available output power of the PoE system and the actual power power of the PoE system
Calculate the remaining output power of the PoE system；
Third determining module determines the PoE power control module for the remaining output power according to the PoE system
Each supply port in the supply port that needs to close.
Specifically, first determining module, is specifically used for:
The status information of at least two power module is obtained, the status information of at least two power module includes
Information in place, output power and the power supply state of corresponding power module；
Determining that information in place is is and power supply state is normal power module to obtain power module in place；
The output power of the power module in place is added up, the available output power of the PoE system is obtained.
Specifically, second determining module, is specifically used for:
Obtain the status information of each supply port of the PoE power control module, the shape of each supply port
State information includes port-mark, use information and the actual power power of corresponding supply port；
It determines the supply port that use information is yes, obtains using supply port；
It is added up described using the actual power power of supply port, obtains the actual power function of the PoE system
Rate.
Specifically, the third determining module, is specifically used for:
Determine whether the remaining output power of the PoE system is less than given threshold；
If it is determined that the remaining output power of the PoE system is less than the given threshold, it is determined that the PoE power supply control
The supply port of module needs to close quantity；
Indicate the confession for needing to close quantity described in setting orderly close-down of the PoE power control module according to port-mark
Electric port.
Specifically, the third determining module, is specifically used for:
Determine the greatest requirements output power of any supply port of the PoE power control module；
By the remaining output power of the PoE system divided by the greatest requirements output power and round numbers, obtain described
The supply port of PoE power control module needs to close quantity.
The present invention has the beneficial effect that:
The embodiment of the present invention provides the power supply management method and device of a kind of PoE system, and programmable logic device is according to institute
The status information for stating at least two power modules determines the available output power of the PoE system；According to the PoE power supply control
The status information of each supply port of module determines the actual power power of the PoE system；According to the PoE system can
The remaining output power of the PoE system described in the actual power power calculation of output power and the PoE system；According to described
The remaining output power of PoE system determines the feeder ear for needing to close in each supply port of the PoE power control module
Mouthful.In the program, it is managed by output power of the programmable logic device to PoE system, programmable logic device is parallel
It executes, real-time is good, can be realized the managing response speed of nanosecond, when some power module exception in PSE, can compile
Journey logical device can close part supply port in time, and all supply ports is avoided all to be closed, it is ensured that most of PD equipment
Normal use.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of PSE in the embodiment of the present invention；
Fig. 2 is a kind of flow chart of the power supply management method of PoE system in the embodiment of the present invention；
Fig. 3 is the flow chart of S21 in the embodiment of the present invention；
Fig. 4 is the flow chart of S22 in the embodiment of the present invention；
Fig. 5 is the flow chart of S24 in the embodiment of the present invention；
Fig. 6 is a kind of structural schematic diagram of the power supply management device of PoE system in the embodiment of the present invention.
Specific embodiment
For existing in the prior art when some power module exception in PSE, CPU cannot close part confession in time
The problem of electric port causes all supply ports to be all closed, and influences the normal use of all PD equipment, the embodiment of the present invention mentions
For a kind of power supply management method of PoE system, PoE system includes PSE and PD, and the structure of PSE is as shown in Figure 1, include at least two
A power module, programmable logic device and PoE power control module, wherein the quantity and PoE power supply control mould of power module
The quantity of the supply port of block can be set according to actual needs.This method can be applied in the programmable logic device,
Programmable logic device can be, but not limited to be Complex Programmable Logic Devices (Complex Programmable Logic
Device, programmable logic device), field programmable gate array (Field-Programmable Gate Array, FPGA)
Etc., the process of this method is as shown in Fig. 2, execute that steps are as follows:
S21: the available output power of PoE system is determined according to the status information of at least two power modules.
Above-mentioned PSE would generally include at least two power modules, but be not that each power module is using, and
The available output power of PoE system is determined by the output power of power module currently in use, therefore, to PoE system
Power supply when be managed, it is necessary first to determine the available output power of PoE system.
The step can execute in real time；After new supply port can also being opened detecting PoE power control module
It executes, because opening the change that new supply port can cause the actual power power of PoE system, it may be necessary to manage PoE system
The output power of system；Also certain detection cycle can be set, after monitoring detection cycle and expiring, execute the step, detect
Period can be set according to actual needs, for example, it can be set to being 30 minutes, 50 minutes, 80 minutes etc.；Certainly also
Other situations, no longer repeat one by one here.
S22: the actual power of PoE system is determined according to the status information of each supply port of PoE power control module
Power.
The actual power power of PoE system is the use of the PD connected by each supply port of PoE power control module
Power decision, therefore, PoE system can be determined according to the status information of each supply port of PoE power control module
Actual power power.
S23: according to the residue of the available output power of PoE system and the actual power power calculation PoE system of PoE system
Output power.
The actual power power of the available output power of PoE system and PoE system, which is subtracted each other, can be obtained by PoE system
Remaining output power.
S24: needs in each supply port of PoE power control module are determined according to the remaining output power of PoE system
The supply port of closing.
Calculate the remaining output power of PoE system, so that it may further determine that and close each of PoE power control module
Which supply port in supply port.
It in the program, is managed by output power of the programmable logic device to PoE system, programmable logic device is
It executing parallel, real-time is good, it can be realized the managing response speed of nanosecond, when some power module exception in PSE,
Programmable logic device can close part supply port in time, and all supply ports is avoided all to be closed, it is ensured that most of PD
The normal use of equipment.
Specifically, determining the available for electric work of PoE system according to the status information of at least two power modules in above-mentioned S21
Rate, implementation is as shown in figure 3, specifically include:
S211: the status information of at least two power modules is obtained.
The status information of at least two power modules can be, but not limited to include corresponding power module information in place, power supply
Power and power supply state.
S212: determining that information in place is is and power supply state is normal power module to obtain power module in place.
The information in place of power module can be, but not limited to be or it is no indicate, be illustrated below as example.
It is to be and power supply state is that normal power module can have tribute to the available output power of PoE system due to there was only information in place
It offers, hence, it can be determined that the power module that information in place is yes, these power modules can be defined as power module in place.
S213: the output power of power module in place is added up, and obtains the available output power of PoE system.
Due to having obtained the output power of each power module in S211, then, by the confession of power module in place
Electrical power is directly added, so that it may obtain the available output power of PoE system.
The available output power of determining PoE system can be realized by S211-S213, be powered management to be subsequent and done
Prepare.
Specifically, the status information of each supply port in above-mentioned S22 according to PoE power control module determines PoE system
The actual power power of system, implementation is as shown in figure 4, specifically include:
S221: the status information of each supply port of PoE power control module is obtained.
The status information of each supply port can be, but not limited to include the port-mark for corresponding to supply port, use information
With actual power power.
S222: it determines the supply port that use information is yes, obtains using supply port.
The use information of supply port can be, but not limited to be or it is no indicate, be illustrated below as example.
Since the feeder ear eloquence for only having use information to be yes can connect PD, powers for PD, will affect the actual power function of PoE system
Rate, hence, it can be determined that the supply port that use information is yes, these supply ports can be defined as using supply port.
S223: the actual power power for using supply port is added up, and obtains the actual power power of PoE system.
Due to having obtained the actual power power of each supply port in S221, then, supply port will be used
Actual power power be directly added, so that it may obtain the actual power power of PoE system.
The actual power power of determining PoE system can be realized by S211-S213, be powered management to be subsequent and done
Prepare.
Specifically, the remaining output power in above-mentioned S24 according to PoE system determines each confession of PoE power control module
The supply port for needing to close in electric port, implementation is as shown in figure 5, specifically include:
S241: determine whether the remaining output power of PoE system is less than given threshold.
When the remaining output power of PoE system is less than given threshold, that is to say, that the actual power power of PoE system is
It has been more than the available output power of PoE system, the overcurrent protection of power module can be caused, all supply ports is caused to be closed
It closes, at this moment has to close part supply port, carry out the power supply management of PoE system.It therefore, can be by the residue of PoE system
Output power is compared with given threshold.
Wherein, given threshold can be set according to actual needs, and given threshold can take zero or the number greater than zero
Value.For example, given threshold is zero, illustrate that the available output power of PoE system is less than the actual power power of PoE system, also
It is to say that PoE system is not enough to provide enough power.
S242: if it is determined that the remaining output power of PoE system is less than given threshold, it is determined that PoE power control module
Supply port needs to close quantity.
It is determining when needing to close quantity of the supply port of PoE power control module, is implementing process are as follows: determining
The greatest requirements output power of any supply port of PoE power control module；By the remaining output power of PoE system divided by most
Big demand output power and round numbers obtain the supply port of PoE power control module and need to close quantity.
For example, currently, the tappered rating of supply port standard has been made stipulations in PoE system, altogether including following five points
Grade power, the tappered rating for being respectively as follows: classification level 0 (class0) is the tappered rating of 15.4W, classification level 1 (class1)
Tappered rating for 4W, classification level 2 (class2) is 7W, the tappered rating of classification level 3 (class3) is 15.4W, classification
The tappered rating of class 4 (class4) is 30W.At this moment, the maximum demanded power of supply port is 30W, by the residue of PoE system
Output power is divided by greatest requirements output power and round numbers, so that it may obtain the need of the supply port of PoE power control module
Close quantity.
S243: instruction PoE power control module needs to close the power supply of quantity according to the setting orderly close-down of port-mark
Port.
Port-mark can be port numbers, port priority etc., can be according to port when port-mark is port numbers
The orderly close-down of mark from small to large needs to close the supply port of quantity, can close according to the sequence of port-mark from big to small
Close the supply port for needing to close quantity；It, can be according to port priority from high to low when port-mark is port priority
Orderly close-down need to close the supply port of quantity, can also need to close according to the orderly close-down of port priority from low to high
Close the supply port of quantity.
Based on the same inventive concept, the embodiment of the present invention provides a kind of power supply management device of PoE system, PoE system packet
PSE and PD are included, PSE includes at least two power modules, programmable logic device and PoE power control module, the device application
In the programmable logic device, the structure of the device is as shown in Figure 6, comprising:
First determining module 61, for determining the available confession of PoE system according to the status information of at least two power modules
Electrical power；
Second determining module 62, the status information for each supply port according to PoE power control module determine PoE
The actual power power of system；
Computing module 63, for according to the available output power of PoE system and the actual power power calculation of PoE system
The remaining output power of PoE system；
Third determining module 64, for determining each of PoE power control module according to the remaining output power of PoE system
The supply port for needing to close in supply port.
It in the program, is managed by output power of the programmable logic device to PoE system, programmable logic device is
It executing parallel, real-time is good, it can be realized the managing response speed of nanosecond, when some power module exception in PSE,
Programmable logic device can close part supply port in time, and all supply ports is avoided all to be closed, it is ensured that most of PD
The normal use of equipment.
Specifically, the first determining module 61, is specifically used for:
The status information of at least two power modules is obtained, the status information of at least two power modules includes corresponding power
Information in place, output power and the power supply state of module；
Determining that information in place is is and power supply state is normal power module to obtain power module in place；
The output power of power module in place is added up, the available output power of PoE system is obtained.
Specifically, the second determining module 62, is specifically used for:
Obtain the status information of each supply port of PoE power control module, the status information packet of each supply port
Include port-mark, use information and the actual power power of corresponding supply port；
It determines the supply port that use information is yes, obtains using supply port；
The actual power power for using supply port is added up, the actual power power of PoE system is obtained.
Specifically, third determining module 64, is specifically used for:
Determine whether the remaining output power of PoE system is less than given threshold；
If it is determined that the remaining output power of PoE system is less than given threshold, it is determined that the feeder ear of PoE power control module
Mouth needs to close quantity；
Indicate that PoE power control module needs to close the supply port of quantity according to the setting orderly close-down of port-mark.
Specifically, third determining module 64, is specifically used for:
Determine the greatest requirements output power of any supply port of PoE power control module；
By the remaining output power of PoE system divided by greatest requirements output power and round numbers, PoE power supply control mould is obtained
The supply port of block needs to close quantity.
The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Although alternative embodiment of the invention has been described, created once a person skilled in the art knows basic
Property concept, then additional changes and modifications may be made to these embodiments.So the following claims are intended to be interpreted as include can
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, those skilled in the art can carry out various modification and variations without departing from this hair to the embodiment of the present invention
The spirit and scope of bright embodiment.In this way, if these modifications and variations of the embodiment of the present invention belong to the claims in the present invention
And its within the scope of equivalent technologies, then the present invention is also intended to include these modifications and variations.
Claims (10)
1. a kind of power supply management method of Power over Ethernet PoE system, the PoE system include power supply unit PSE and are set by electricity
Standby PD, which is characterized in that the PSE includes at least two power modules, programmable logic device and PoE power control module,
The method is applied in the programmable logic device, which comprises
The available output power of the PoE system is determined according to the status information of at least two power module；
The actual power of the PoE system is determined according to the status information of each supply port of the PoE power control module
Power；
The PoE system according to the actual power power calculation of the available output power of the PoE system and the PoE system
Remaining output power；
Needs in each supply port of the PoE power control module are determined according to the remaining output power of the PoE system
The supply port of closing.
2. the method as described in claim 1, which is characterized in that determined according to the status information of at least two power module
The available output power of the PoE system, specifically includes:
The status information of at least two power module is obtained, the status information of at least two power module includes corresponding to
Information in place, output power and the power supply state of power module；
Determining that information in place is is and power supply state is normal power module to obtain power module in place；
The output power of the power module in place is added up, the available output power of the PoE system is obtained.
3. the method as described in claim 1, which is characterized in that according to each supply port of the PoE power control module
Status information determine the actual power power of the PoE system, specifically include:
Obtain the status information of each supply port of the PoE power control module, the state letter of each supply port
Breath includes port-mark, use information and the actual power power of corresponding supply port；
It determines the supply port that use information is yes, obtains using supply port；
It is added up described using the actual power power of supply port, obtains the actual power power of the PoE system.
4. method a method according to any one of claims 1-3, which is characterized in that true according to the remaining output power of the PoE system
The supply port for needing to close in each supply port of the fixed PoE power control module, specifically includes:
Determine whether the remaining output power of the PoE system is less than given threshold；
If it is determined that the remaining output power of the PoE system is less than the given threshold, it is determined that the PoE power control module
Supply port need to close quantity；
Indicate the feeder ear for needing to close quantity described in setting orderly close-down of the PoE power control module according to port-mark
Mouthful.
5. method as claimed in claim 4, which is characterized in that determine the need of the supply port of the PoE power control module
Quantity is closed, is specifically included:
Determine the greatest requirements output power of any supply port of the PoE power control module；
By the remaining output power of the PoE system divided by the greatest requirements output power and round numbers, obtains the PoE and supply
The supply port of electric control module needs to close quantity.
6. a kind of power supply management device of PoE system, the PoE system include PSE and PD, which is characterized in that the PSE includes
At least two power modules, programmable logic device and PoE power control module, described device are applied in the programmable logic
In device, described device includes:
First determining module, for determining the available of the PoE system according to the status information of at least two power module
Output power；
Second determining module, for according to the determination of the status information of each supply port of the PoE power control module
The actual power power of PoE system；
Computing module, for according to the available output power of the PoE system and the actual power power calculation of the PoE system
The remaining output power of the PoE system；
Third determining module determines each of the PoE power control module for the remaining output power according to the PoE system
The supply port for needing to close in a supply port.
7. device as claimed in claim 6, which is characterized in that first determining module is specifically used for:
The status information of at least two power module is obtained, the status information of at least two power module includes corresponding to
Information in place, output power and the power supply state of power module；
Determining that information in place is is and supply station state is normal power module to obtain power module in place；
The output power of the power module in place is added up, the available output power of the PoE system is obtained.
8. device as claimed in claim 6, which is characterized in that second determining module is specifically used for:
Obtain the status information of each supply port of the PoE power control module, the state letter of each supply port
Breath includes port-mark, use information and the actual power power of corresponding supply port；
It determines the supply port that use information is yes, obtains using supply port；
It is added up described using the actual power power of supply port, obtains the actual power power of the PoE system.
9. such as device as claimed in claim 6 to 8, which is characterized in that the third determining module is specifically used for:
Determine whether the remaining output power of the PoE system is less than given threshold；
If it is determined that the remaining output power of the PoE system is less than the given threshold, it is determined that the PoE power control module
Supply port need to close quantity；
Indicate the feeder ear for needing to close quantity described in setting orderly close-down of the PoE power control module according to port-mark
Mouthful.
10. device as claimed in claim 9, which is characterized in that the third determining module is specifically used for:
Determine the greatest requirements output power of any supply port of the PoE power control module；
By the remaining output power of the PoE system divided by the greatest requirements output power and round numbers, obtains the PoE and supply
The supply port of electric control module needs to close quantity.
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