CN103200015A - Power over Ethernet (POE) switchboard power supply method - Google Patents

Power over Ethernet (POE) switchboard power supply method Download PDF

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Publication number
CN103200015A
CN103200015A CN2013101148139A CN201310114813A CN103200015A CN 103200015 A CN103200015 A CN 103200015A CN 2013101148139 A CN2013101148139 A CN 2013101148139A CN 201310114813 A CN201310114813 A CN 201310114813A CN 103200015 A CN103200015 A CN 103200015A
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CN
China
Prior art keywords
power
power supply
port
step
groove position
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CN2013101148139A
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Chinese (zh)
Inventor
谢文娟
李松华
程友清
王一鸣
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武汉烽火网络有限责任公司
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Priority to CN2013101148139A priority Critical patent/CN103200015A/en
Publication of CN103200015A publication Critical patent/CN103200015A/en

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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THIR OWN ENERGY USE
    • Y02D50/00Techniques for reducing energy consumption in wire-line communication networks
    • Y02D50/40Techniques for reducing energy consumption in wire-line communication networks by operating in low-power or sleep mode
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THIR OWN ENERGY USE
    • Y02D50/00Techniques for reducing energy consumption in wire-line communication networks
    • Y02D50/40Techniques for reducing energy consumption in wire-line communication networks by operating in low-power or sleep mode
    • Y02D50/42Techniques for reducing energy consumption in wire-line communication networks by operating in low-power or sleep mode specifically suitable for Ethernet, e.g. IEEE802.3az

Abstract

The invention discloses a power over Ethernet (POE) switchboard power supply method. The method is used for providing power for power receiving equipment connected with ports of a POE switchboard. The method comprises a port power supply enabled step which is used for dealing with the condition that power is suddenly increased so as to protect safe power reserve of a system and used for executing overload protective checking and dealing in a timing mode so as to avoid overload protection of the overload. The port power supply enabled step comprises the following steps of an initial stage of a step a, serving the initial stage as a starting point of a power supply enabled process, and completing certain basic initialization and clearing operation; a power supply state of a step b; and a maintenance stage of a step c, refreshing real-time power, and conducting disconnection detection and single port overload detection. All the ports are independently processed, a traditional serial mode is changed to a parallel mode, and efficiency is greatly improved; responding and processing on an event are timely and effective; and power supply safety, stability and maintainability of the system are greatly enhanced.

Description

A kind of POE power supply for exchange method

Technical field

POE(Power over Ethernet in the relevant a kind of communications electronics field of the present invention, Power over Ethernet) supply power mode, refer to a kind of PD(Powered Device that can meet condition of power supply at short notice to all especially, the POE power supply for exchange method of power supply power receiving equipment), and raising system power supply stability.

Background technology

POE power supply claims remote power feeding again, and the equipment of referring to passes through Ethernet interface, utilizes twisted-pair feeder that external PD equipment (first-class as IP phone, wireless aps, network shooting) is carried out remote power feeding.

Existing POE switch on the market adopts mostly the mode of each port poll is powered at present, i.e. system's each port of poll switch successively detects, operations such as classification, power supply, maintenance.Each port needs 550 milliseconds time at least from beginning to detect successfully power supply.For one 24 mouthfuls switch, poll successfully powers on once also for each port that connects PD needs 12 seconds time at least.If improve poll speed, namely on carrying out, do not wait for the hardware return results during certain step of a port, direct next port of poll, the PD that then needs more wrap count satisfy condition of power supply could on this switch all successfully powers.Simultaneously, owing to just can get access to the realtime power of this port after powering successfully to port, a new port is powered on to cause the switch power overload, cause system damage.In addition, for operations such as the change of port enabled state, port mode and the changes of power supply priority, above-mentioned polling mode can not in time respond.So adopt the existing mode power supply, power on and the efficient of cutting off the power supply not good enough, maintainability and user experience not good enough.

Summary of the invention

In view of this, main purpose of the present invention is to provide a kind of PD power supply that can meet condition of power supply in the shortest time to all, and the POE power supply for exchange method of raising system power supply stability.

For achieving the above object, the invention provides a kind of POE power supply for exchange method, it is used for the power receiving equipment power supply of each port of POE switch to connecting, described method comprises that port power supply enables, is used for dealing with the situation that the power of burst increases, with the power reservation of protection system safety and for regularly carrying out overload protection inspection and processing, with the overload protection of avoiding transshipping, wherein said port power supply enables step and comprises: step (a) starting stage, be the starting point of power supply enabling process, this step is finished some basic initialization and is emptied operation; Step (b) the power supply stage; Step (c) maintenance phase upgrades realtime power, opens circuit and detects and the single port overload detection.

This method is operated under the semi-automatic powering mode or under the automatic mode, also comprises step (a1) detection-phase between described step (a) and step (b), and the chip operation pattern is set, and enables BSP and detects; In step (a2) the classification stage, the testing result of preservation step (a1) enables BSP(plate level support package) classification; Described step (b) is preserved the classification results of step (a2), and can judgement power, if then the BSP power supply enables.

Described power is reserved and is divided into the reservation of port power and groove position power reservation dual mode, needs the percentage that whether user's configured port power in order line is reserved and groove position power is reserved.

When port power being set reserving, before giving certain qualified port power supply, calculate the groove position during consumed power, the corresponding maximum power of each port power receiving equipment classification of having powered is added up, and guarantee power supply safety; When port power be set do not reserve, when calculating above-mentioned power, the power of each port PD actual consumption of having powered is added up, can guarantee to give the most a plurality of ports power supplies.

Described groove position power is reserved and is referred to that the user can set the power percentage that each groove position is used for power supply, and the product of this value and groove position rated power is groove position maximum power threshold, and the user can set this percentage as required.

Described overload protection is divided into single port overload protection and groove position overload protection.

Described single port overload protection is finished in described step (c); described single port overload protection is every the regular hour; fill order's port overload protection checks; if find that port power is greater than the maximum power of the single port of the corresponding maximum power of classification or user's setting; to jump to initial condition, re-execute the detection progressive operation again after at regular intervals.

Described groove position overload protection is every the regular hour; carry out power overload protection check; the actual power that the power supply port consumes in finding whole groove position is during greater than this groove position maximum power threshold; system is according to the power supply priority of each port; automatically close the power supply of the port after the low port numbers of priority is leaned on, to avoid overload.

All of the port and groove position share a semaphore, adopt a timer timing at each port, described step (a) to step (c) all adopts the timer expiry Event triggered, each step all has corresponding state value and time-out time, only when timer expiry, obtain this semaphore, finish the processing of each step; Also adopt a timer timing in each groove position, only when timer expiry, obtain this semaphore, finish the power overload protection of groove position and handle.

For each port, behind timer expiry, obtain described semaphore, carry out corresponding event-function of state according to the current state of state machine, the operation of chip is set therein, the time-out time new according to the time set of finishing this action need restarted timer and returned next state value, and release semaphore is waited for overtime next time, when overtime response next time, can obtain the result of this operation of BSP chip.

Compare with traditional supply power mode, this method has the following advantages:

(1) processing of each port is independent mutually, and so, traditional serial mode has become parallel, has improved efficient greatly;

(2) more timely and effective to response and the processing of event;

(3) Supply Security of system, stability, maintainability strengthen greatly.

Description of drawings

Fig. 1 is the integral framework figure of POE power supply for exchange method of the present invention;

Fig. 2 is POE power supply for exchange method middle port power supply enabling process figure of the present invention;

Fig. 3 is the state redirect figure of each step among the present invention.

Embodiment

For ease of method of the present invention and the effect that reaches are had further understanding, the existing preferred embodiment that develops simultaneously by reference to the accompanying drawings is described in detail as follows.

As shown in Figure 1; POE power supply for exchange method integral framework of the present invention comprises three parts: the port power supply enables, power is reserved and overload protection; power remains for dealing with the situation that the power of burst increases in advance; protection system safety; overload protection is used for regularly carrying out overload protection inspection and processing, avoids overload.Wherein as shown in Figure 2, the power supply of the port of POE power supply for exchange method of the present invention enables step and comprises: step (1) starting stage, be the starting point of power supply enabling process, and this step is finished some basic initialization and is emptied operation; Step (2) detection-phase arranges the chip operation pattern, enables BSP and detects; In step (3) the classification stage, the testing result of preservation step (2) enables the BSP classification; Step (4) the power supply stage, the classification results of preservation step (3), can judgement power, if then the BSP power supply enables; Step (5) maintenance phase upgrades realtime power, opens circuit and detects and the single port overload detection.

Under semi-automatic powering mode, instruction is sent by software in step (2), (3), (4); Under the automatic mode, the chip operation pattern is set after, chip is with automatic completing steps (2), (3), (4); Under the compulsory mode, do not detect classification, establish the chip operation pattern after, direct execution in step (4) enable operation of powering.All enter step (5) after various patterns are powered successfully and carry out the maintenance of power supply state.

Can the POE chip is finished above-mentioned steps (2), (3), (4) all to be needed to spend the regular hour, and for each port, these steps must be carried out in serial, the whether power overload of pit position of also need considering power on and power under precondition.But if adopt serial mode to finish the processing of each port of groove position successively, will wait for the long period, influence efficient greatly.So the present invention adopts timeout mechanism to handle: all of the port and groove position share a semaphore, adopt a timer timing at each port, only obtain this semaphore when timer expiry, finish the processing of each step; Also adopt a timer timing in each groove position, only when timer expiry, obtain this semaphore, finish the power overload protection of groove position and handle.

For each port, behind timer expiry, for guaranteeing operation and other port mutual exclusion, module need at first get access to this semaphore, carry out corresponding event-function of state (as shown in table 1) according to the current state of state machine then, the operation of chip is set therein, the time-out time new according to the time set of finishing this action need, restart timer and return next state value, release semaphore is waited for overtime next time.When overtime response next time, can obtain the result of this operation of BSP chip.Adopt this timeout mechanism, each port concurrent working, the independent power supply enabling process of carrying out, efficient is higher.

Among port events as shown in table 1-state matrix figure, a leftmost tabulation is shown and is respectively variety of event: the port timer expiry, connect disconnect (power down or people are for pulling out plug), enable/go to enable to switch, automatic/semi-automatic/compulsory mode switching.The various states of a uppermost behavior port status machine, initial, detection, classification, power supply, maintenance.Performed sequence of operations when walking crosswise the value that A11, A12 in the grid that intersects with file, event that expressions such as A31, A42 are walked crosswise and port status machine be file, adopt a function to finish, this value of different grid is if identical function is called in identical expression.When taking place as: " overtime " event, carry out the operation of A11 ~ A15 respectively according to different states, jump to NextState again, the generation of waiting event.And for example: " connect and disconnect " is in the equal undo of port (A0 represents not have operation) of " initially ", " detection ", " classification " state when event takes place, and the port that is in " power supply ", " maintenance " state is all carried out the A21 operation.

Table 1

Among the state redirect figure as shown in Figure 3, in the square frame is the state of port status machine, is respectively: initial, detection, classification, power supply, maintenance, and sequence number shows the redirect condition, its implication is as follows:

A: initial condition is overtime, semi-automatic powering mode;

B: detected state is overtime;

C: classification status is overtime, has read detected value, and further classification;

D: power supply state is overtime, has read rank value, and the detected value rank value satisfies the port condition of power supply, and groove position dump power is enough;

E: the port overload is closed power supply, groove position overload protection is closed power down, the pattern change that power supply, plug PD etc. cause;

F: initial condition is overtime, automatic or constrained feed pattern;

G: the detected value rank value does not satisfy the port condition of power supply;

H: classification status is overtime, has read detected value, and further classification;

I: maintenance state is overtime and power supply is normal.

As shown in Figure 1, power is reserved and is divided into the reservation of port power and groove position power reservation dual mode, when the reservation of port power is set, before giving certain qualified port power supply, calculate the groove position during consumed power, the corresponding maximum power of each port PD classification of having powered is added up, and the method can guarantee power supply safety.When port power be set do not reserve, when calculating above-mentioned power, the power of each port PD actual consumption of having powered is added up, the method can guarantee to the most a plurality of ports power supplies.Groove position power is reserved and is referred to that the user can set each groove position and have percent what power to be used for power supply; the product of this value and groove position rated power is groove position maximum power threshold; the user can set this value as required, not only can be used for protection system safety, also can be used for limiting the port number of power supply.Overload protection is divided into single port overload protection and groove position overload protection.Single port overload protection: every the regular hour; fill order's port overload protection checks; if find the maximum power of the single port that port power is set greater than the corresponding maximum power of classification or user, will jump to initial condition, re-execute the detection progressive operation again after at regular intervals.Groove position overload protection: every the regular hour; carry out power overload protection check; the actual power that the power supply port consumes in finding whole groove position is during greater than this groove position maximum power threshold; system is according to the power supply priority of each port; automatically close the power supply of the port after the low port numbers of priority is leaned on, to avoid overload.

The above is preferred embodiment of the present invention only, is not for limiting protection scope of the present invention.

Claims (10)

1. POE power supply for exchange method, it is used for the power receiving equipment power supply of each port of POE switch to connecting, it is characterized in that, described method comprises that port power supply enables, is used for dealing with the situation that the power of burst increases, with the power reservation of protection system safety and for regularly carrying out overload protection inspection and processing, with the overload protection of avoiding transshipping, wherein said port power supply enables step and comprises: step (a) starting stage, be the starting point of power supply enabling process, this step is finished some basic initialization and is emptied operation; Step (b) the power supply stage; Step (c) maintenance phase upgrades realtime power, opens circuit and detects and the single port overload detection.
2. POE power supply for exchange method as claimed in claim 1, it is characterized in that this method is operated under the semi-automatic powering mode or under the automatic mode, also comprises step (a1) detection-phase between described step (a) and step (b), the chip operation pattern is set, enables BSP and detect; In step (a2) the classification stage, the testing result of preservation step (a1) enables the BSP classification; Described step (b) is preserved the classification results of step (a2), and can judgement power, if then the BSP power supply enables.
3. POE power supply for exchange method as claimed in claim 2, it is characterized in that, described power is reserved and is divided into the reservation of port power and groove position power reservation dual mode, needs the percentage that whether user's configured port power in order line is reserved and groove position power is reserved.
4. POE power supply for exchange method as claimed in claim 3, it is characterized in that, when the reservation of port power is set, before giving certain qualified port power supply, calculate the groove position during consumed power, the corresponding maximum power of each port power receiving equipment classification of having powered is added up, and guarantee power supply safety; When port power be set do not reserve, when calculating above-mentioned power, the power of each port PD actual consumption of having powered is added up, can guarantee to give the most a plurality of ports power supplies.
5. POE power supply for exchange method as claimed in claim 3, it is characterized in that, described groove position power is reserved and is referred to that the user can set the power percentage that each groove position is used for power supply, the product of this value and groove position rated power is groove position maximum power threshold, and the user can set this percentage as required.
6. POE power supply for exchange method as claimed in claim 2 is characterized in that, described overload protection is divided into single port overload protection and groove position overload protection.
7. POE power supply for exchange method as claimed in claim 6; it is characterized in that; described single port overload protection is finished in described step (c); described single port overload protection is every the regular hour; fill order's port overload protection checks; if find the maximum power of the single port that port power is set greater than the corresponding maximum power of classification or user, will jump to initial condition, re-execute the detection progressive operation again after at regular intervals.
8. POE power supply for exchange method as claimed in claim 6; it is characterized in that; described groove position overload protection is every the regular hour; carry out power overload protection check; the actual power that the power supply port consumes in finding whole groove position is during greater than this groove position maximum power threshold; system closes the power supply of the port after the low port numbers of priority is leaned on automatically according to the power supply priority of each port, to avoid overload.
9. as claim 3 or 6 described POE power supply for exchange methods, it is characterized in that, all of the port and groove position share a semaphore, adopt a timer timing at each port, described step (a) to step (c) all adopts the timer expiry Event triggered, each step all has corresponding state value and time-out time, only obtains this semaphore when timer expiry, finishes the processing of each step; Also adopt a timer timing in each groove position, only when timer expiry, obtain this semaphore, finish the power overload protection of groove position and handle.
10. POE power supply for exchange method as claimed in claim 9, it is characterized in that, for each port, behind timer expiry, obtain described semaphore, carry out corresponding event-function of state according to the current state of state machine, the operation of chip is set therein, the time-out time new according to the time set of finishing this action need, restart timer and return next state value, release semaphore is waited for overtime next time, when overtime response next time, can obtain the result of this operation of BSP chip.
CN2013101148139A 2013-04-03 2013-04-03 Power over Ethernet (POE) switchboard power supply method CN103200015A (en)

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CN103701618A (en) * 2013-12-27 2014-04-02 上海斐讯数据通信技术有限公司 POE (power over Ethernet) switch port setting power limiting value validating method
CN103873263A (en) * 2014-03-27 2014-06-18 浙江宇视科技有限公司 Method and device for supplying electricity based on POE
CN104219062A (en) * 2014-08-20 2014-12-17 烽火通信科技股份有限公司 POE power scheduling management method based on ONU ports
CN106789109A (en) * 2016-12-16 2017-05-31 迈普通信技术股份有限公司 Power management method and device
CN107278358A (en) * 2015-02-27 2017-10-20 飞利浦灯具控股公司 Apparatus and method for parallel powering
CN107547209A (en) * 2017-08-14 2018-01-05 新华三技术有限公司 Power distribution method and device
WO2018090695A1 (en) * 2016-11-16 2018-05-24 杭州海康威视数字技术股份有限公司 Power control method, device and electronic equipment in ethernet power supply system

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CN101820348A (en) * 2010-03-09 2010-09-01 武汉烽火网络有限责任公司 Method and device for carrying out overload protection on equipment in POE system
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CN101820348A (en) * 2010-03-09 2010-09-01 武汉烽火网络有限责任公司 Method and device for carrying out overload protection on equipment in POE system
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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103701618A (en) * 2013-12-27 2014-04-02 上海斐讯数据通信技术有限公司 POE (power over Ethernet) switch port setting power limiting value validating method
CN103873263A (en) * 2014-03-27 2014-06-18 浙江宇视科技有限公司 Method and device for supplying electricity based on POE
CN104219062A (en) * 2014-08-20 2014-12-17 烽火通信科技股份有限公司 POE power scheduling management method based on ONU ports
CN104219062B (en) * 2014-08-20 2017-11-07 烽火通信科技股份有限公司 POE power dispatching management methods based on ONU end mouthful
CN107278358A (en) * 2015-02-27 2017-10-20 飞利浦灯具控股公司 Apparatus and method for parallel powering
WO2018090695A1 (en) * 2016-11-16 2018-05-24 杭州海康威视数字技术股份有限公司 Power control method, device and electronic equipment in ethernet power supply system
CN106789109A (en) * 2016-12-16 2017-05-31 迈普通信技术股份有限公司 Power management method and device
CN106789109B (en) * 2016-12-16 2019-09-03 迈普通信技术股份有限公司 Power management method and device
CN107547209A (en) * 2017-08-14 2018-01-05 新华三技术有限公司 Power distribution method and device

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