CN102833079B - A kind of prevent pluggable power supply from crossing confession method and device - Google Patents
A kind of prevent pluggable power supply from crossing confession method and device Download PDFInfo
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Abstract
A kind of prevent pluggable power supply from crossing confession method and device, by recording two cover memory bank bank matrixes in Power over Ethernet POE chip, wherein under the various situation of a set of matrix record, POE exports the default value of minimal power power, and is kept in the flash memory of POE chip; The power that the current POE chip of another set of matrix record exports, and be kept in the random asccess memory Ram of POE chip; When POE chip detect power module extract time, first described POE chip covers corresponding train value in Ram with the corresponding train value of the default value of the POE out-put supply power recorded in flash memory, and when switch finds actual power in place higher than minimum gauge output power of power supply, heighten the corresponding train value in bank matrix.By the present invention, the described network equipment can support the pluggable power supply of multiple different capacity simultaneously, makes full use of power, prevents power supply from crossing simultaneously and occurs for situation.
Description
Technical field
The present invention relates to data communication technology field, particularly relate to method and device that a kind of POE (PoweroverEthernet, Power over Ethernet) equipment supports to prevent during the pluggable power supply of multiple different capacity confession.
Background technology
In order to improve the reliability of application, existing most of switch all supports pluggable Power supply, can change easily when the power fails, and provide redundancy backup.The field extensive uses such as the current heart in the data of the program.
Particularly, as shown in Figure 1, this switch comprises two pluggable power module slots 1,2.Suppose that 715W power supply is only supported in slot 1, slot 2 also only support 715W power supply time, (Bank matrix is a function of POE chip now can to arrange bank (memory bank) matrix, under power supply combined situation in place in each slot is set, the power output of supplying power for outside, and realize ms level and switch) as shown in following table one, the digitized representation POE chip wherein in form can supplying power for outside gross power:
Table one
Because a kind of power supply of specification type is only supported in each slot, therefore, only need switch that a bank matrix is set when cold start-up initialization, do not need below to revise again, generation power supply plugs, and namely Powergood (power supply is good) signal and bank matrix can complete at Millisecond and adjust external power.
But the switch of a new generation all supports the pluggable power supply of multiple different capacity usually, this brings new challenge to POE power supply management.Such as: when same slot high power power quick-replaceable is lower wattage power supply, because the input power of switch reduces, if now POE chip can not be turned down lower extension PD (PowerDevice in time, power supply unit) output power, power supply is crossed and is continued once exceed the limit that power supply can bear, then can damage power supply for situation.Even if power supply, with the function of protection power-off automatically, also can cause the power down of POE switch complete machine, affect business.
Still for the switch shown in above-mentioned Fig. 1, when the power supply of plurality of specifications type can be supported in slot 1,2, generation power supply plugs, need switch software after by I2C (Inter-IntegratedCircuit) bus identification power supply type, dynamic adjustment bank matrix, and then realize the in good time adjustment of power output.But because I2C bus is slow channels, therefore, the adjustment of software bank matrix can only reach level switching second.And power supply is being crossed in situation at present, can only keep within 1 millisecond, afterwards will auto-breaking protection.Particularly in switch hot restart process, CPU is reaching in about 2 minutes time and cannot adjust bank matrix in time, and therefore, the situation crossing confession easily occurs.
Such as, suppose that 715W power supply can be supported in the slot 1 shown in Fig. 1, also can support 1100W power supply, so:
Step 1: after slot 1 inserts the power supply of a 1100W, it is as shown in table 2 below that the bank matrix of POE chip upgrades corresponding slot by switch software, to make full use of the power output of power supply:
Table two
Step 2: after the 1100W power supply of slot 1 is extracted, for the power supply preventing slot 1 from inserting a 750W next time causes POE chip power supply to transship, now need switch by as follows for bank matrix update, the value by slot 1 is modified as the minimum gauge that can support, specifically as shown in Table 3:
Table three
But, because switch is in hot restart process, usually need the renewal that just can complete bank matrix for about 2 minutes.This that is, in the process, switch software can not upgrade in time bank matrix, namely cannot complete the power adjustment of above-mentioned step 2 in time.Now when an insertion 715W power supply; owing to cannot in time bank matrix be turned down; there will be POE chip like this will continue according to original 1815W power supplying power for outside; namely the power supply of two slots provide only the power of 1530W; and POE chip supplying power for outside 1815W; now POE powers overload, and power supply can protect power-off automatically when transshipping, thus complete machine power-off.
Summary of the invention
In view of this, method and the device of confession was prevented when the invention provides a kind of pluggable power supply.By the present invention, exchange the pluggable power supply that function supports multiple different capacity simultaneously, make full use of power, prevented from occurring for situation simultaneously.
For realizing the object of the invention, implementation of the present invention is specific as follows:
Prevented a method for confession during pluggable power supply, described method is applied to Power over Ethernet POE equipment can support the pluggable power module of multiple different capacity simultaneously, and wherein said method comprises the steps:
Step 1, in POE chip, record two cover bank matrixes, wherein under the various situation of a set of bank matrix record, POE exports the default value of minimal power power, and is kept in the flash memory of POE chip; The power that the current POE chip of another set of bank matrix record exports, and be kept in the Ram random asccess memory of POE chip;
Step 2, when POE chip detect power module extract time, first described POE chip covers the corresponding train value in Ram with the corresponding train value of the default value of the POE out-put supply power recorded in flash memory, and when switch finds actual power in place higher than minimum gauge output power of power supply, heighten the value of respective column in bank matrix.
The present invention provides a kind of device preventing pluggable power supply from crossing confession simultaneously, and described application of installation thereon slot can support the situation of the power supply of plurality of specifications simultaneously, and wherein, described device comprises:
First logging modle, exports the bank matrix of the default value of minimal power power for recording Power over Ethernet POE chip under various situation;
Second logging modle, for recording the bank matrix of the power of the current output of POE chip;
Detection overlay module, whether be pulled out for detecting power module, when detecting after described power module is pulled out, described detection overlay module covers the corresponding train value in the bank matrix of described second logging modle record with the corresponding train value of the default value in the bank matrix recorded in described first logging modle;
Power regulation module, for when finding the power of actual power in place higher than minimum gauge, heightens the value of respective column in bank matrix.
Compared with existing technical scheme, the present invention exchanges the pluggable power supply that function supports multiple different capacity simultaneously, makes full use of power, prevents from occurring for situation simultaneously.
Accompanying drawing explanation
Fig. 1 is that existing switch exists multi-power module slot rear panel structure schematic diagram.
Fig. 2 prevented the method flow schematic diagram of confession when being the pluggable power supply of the present invention.
Fig. 3 prevented the apparatus structure schematic diagram of confession when being the pluggable power supply of the present invention.
Embodiment
In order to realize the object of the invention, the core concept that the present invention adopts is: in Power over Ethernet POE chip, record two cover memory bank bank matrixes, wherein under the various situation of a set of bank matrix record, POE chip exports the default value of minimal power power, and is kept in the flash of POE chip; The power that the current POE chip of another set of bank matrix record exports, and be kept in the random asccess memory Ram of POE chip; When POE chip detect power module extract time, first described POE chip covers the corresponding train value in RAM with the corresponding train value of the default value of the POE out-put supply power recorded in flash, and when switch finds actual power in place higher than minimum gauge output power of power supply, heighten the value of respective column in bank matrix.
For making technical solution of the present invention clearly with clear, described in detail below in conjunction with the specific embodiment of the invention.As shown in Figure 2, the method flow schematic diagram of confession was prevented during power supply pluggable for the present invention.Described method is applied to POE equipment can support the pluggable power module of multiple different capacity simultaneously, and described method comprises the steps:
Step 1, in POE chip, record two cover bank matrixes, wherein under the various situation of bank a set of matrix record, POE exports the default value of minimal power power, and is kept in the flash of POE chip; The power that the current POE chip of another set of bank matrix record exports, and be kept in the Ram of POE chip.
The pluggable power supply of different size still can be supported for the switch device slot 1,2 shown in Fig. 1.According to implementation method of the present invention, first in POE chip, record two cover bank matrixes respectively, wherein a set of bank matrix is recorded as POE under various situation and exports the default value of minimal power power, be kept in the flash (flash memory) of POE chip, for 715W/1100W two kinds of power supplys, default matrix is set to as shown in following table four:
Table four
The power that the current POE chip of another set of bank matrix record exports, and be kept in the Ram (randomaccessmemory, random asccess memory) of POE chip, specifically as shown in Table 5:
Table five
Step 2, when POE chip detect power module extract time, first described POE chip covers the corresponding train value in Ram with the corresponding train value of the default value of the POE out-put supply power recorded in flash, and when switch finds actual power in place higher than minimum gauge output power of power supply, heighten the value of respective column in bank matrix.
Particularly, when POE chip according to the change of Powergood signal detect power supply extract time, first described POE chip exports the corresponding train value in the corresponding train value covering Ram of the default value of minimal power power with POE chip under the various situations recorded in flash memory, now, owing to recording two cover bank matrixes in POE chip simultaneously, therefore, described POE chip can participate directly in the adjustment of bank matrix according to the variation of Powergood signal, and the response time can bring up to Millisecond.In addition, due to the default value for POE output minimal power power under various situation recorded in flash memory, therefore can not there is POE out-put supply power and be greater than original output power of power supply.Therefore, power supply is there will not be to cross the situation of confession.
Subsequently, if when switch device finds the power of (such as: can be found by the mode of switch polls or interruption) actual power in place higher than minimum gauge, heighten the value of respective column in bank matrix.
By the present invention, POE chip can adjust the value of bank matrix to default value (or safety value) in time according to the variation of Powergood signal, therefore, can prevent the situation that pluggable power supply crosses confession.
The present invention provides a kind of device preventing pluggable power supply from crossing confession simultaneously, and wherein said application of installation thereon slot can support the situation of the power supply of plurality of specifications simultaneously, and described device comprises:
First logging modle, exports the bank matrix of the default value of minimal power power for recording POE under various situation;
Second logging modle, for recording the bank matrix of the power of the current output of POE chip;
Detection overlay module, whether be pulled out for detecting power module, when detecting after described power module is pulled out, the described detection overlay module corresponding train value of the default value in the bank matrix recorded in described first logging modle covers the value of respective column in the bank matrix of described second logging modle record;
Power regulation module, for when finding the power of actual power in place higher than minimum gauge, heightens the value of respective column in bank matrix.
Further, described first logging modle is the flash memory in described POE chip, and described second logging modle is the Ram in described POE chip.
Further, particular by the change of detection powergood signal, described detection overlay module knows whether described power module is pulled out.
Further, described power regulation module finds actual power in place whether higher than the default power source power of minimum gauge particular by the mode of poll or interruption.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within the scope of protection of the invention.
Claims (7)
1. pluggable power supply prevented a method for confession, and described method is applied to Power over Ethernet POE equipment, and can support the pluggable power module of multiple different capacity simultaneously, it is characterized in that, described method comprises the steps:
Step 1, in POE chip, record two cover memory bank bank matrixes, wherein under the various situation of a set of bank matrix record, POE chip exports the default value of minimal power power, and is kept in the flash memory of POE chip; Another bank overlaps the power that the current POE chip of matrix record exports, and is kept in the random asccess memory Ram of POE chip;
Step 2, when POE chip detect power module extract time, first described POE chip covers the corresponding train value in Ram with the corresponding train value of the default value of the POE out-put supply power recorded in flash memory, and when switch finds actual power in place higher than minimum gauge output power of power supply, heighten the corresponding train value in bank matrix.
2. the method for claim 1, is characterized in that, whether described POE chip specifically detects described power module according to the change of power supply good signal Powergood signal and be pulled out.
3. method as claimed in claim 2, it is characterized in that, described switch finds actual power in place whether higher than the default power source power of minimum gauge particular by the mode of poll or interruption, and when finding the default power source power of actual power in place higher than minimum gauge, heighten the corresponding train value in bank matrix.
4. prevent pluggable power supply from crossing a device for confession, wherein said application of installation thereon slot can support the situation of the power module of plurality of specifications power simultaneously, and it is characterized in that, described device comprises:
First logging modle, exports the memory bank bank matrix of the default value of minimal power power for recording Power over Ethernet POE chip under various situation;
Second logging modle, for recording the bank matrix of the power of the current output of POE chip;
Detection overlay module, whether be pulled out for detecting power module, when detecting after described power module is pulled out, described detection overlay module covers the corresponding train value in the bank matrix of described second logging modle record with the corresponding train value of the minimal power power default value in the bank matrix recorded in described first logging modle;
Power regulation module, for when finding the power of actual power in place higher than minimum gauge, heightens the corresponding train value in bank matrix.
5. device as claimed in claim 4, it is characterized in that, described first logging modle is specially the flash memory in described POE chip, and described second logging modle is specially the random asccess memory Ram in described POE chip.
6. device as claimed in claim 5, is characterized in that, particular by the change of detection power supply good signal powergood signal, described detection overlay module knows whether described power module is pulled out.
7. device as claimed in claim 6, is characterized in that, described power regulation module finds actual power in place whether higher than the default power source power of minimum gauge particular by the mode of poll or interruption.
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| CN103220155A (en) * | 2013-04-02 | 2013-07-24 | 京信通信系统（中国）有限公司 | Current expanding method, power device (PD) and power over Ethernet (POE) system |
| CN106888100B (en) * | 2017-03-31 | 2020-11-27 | 新华三技术有限公司 | Ethernet power supply switch and power supply method thereof |
| CN112560371B (en) * | 2020-12-18 | 2022-07-22 | 迈普通信技术股份有限公司 | Mainboard, onboard power supply and electronic equipment |
| CN113014403B (en) * | 2021-02-28 | 2022-03-29 | 新华三信息安全技术有限公司 | Ethernet power supply method and equipment |
| CN113079116B (en) * | 2021-03-17 | 2022-04-26 | 新华三技术有限公司 | Power supply method, device and equipment |
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| CN101141263A (en) * | 2007-08-28 | 2008-03-12 | 福建星网锐捷网络有限公司 | Method, control cell and system for controlling ethernet power supply |
| CN101707380A (en) * | 2008-07-21 | 2010-05-12 | 北京星网锐捷网络技术有限公司 | Method, device and system for configuring power supply system |
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| US8335574B2 (en) * | 2008-12-09 | 2012-12-18 | Andy Middlemiss | Power controlling device and methods of use |
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| CN101141263A (en) * | 2007-08-28 | 2008-03-12 | 福建星网锐捷网络有限公司 | Method, control cell and system for controlling ethernet power supply |
| CN101707380A (en) * | 2008-07-21 | 2010-05-12 | 北京星网锐捷网络技术有限公司 | Method, device and system for configuring power supply system |
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Address after: 310052 Binjiang District Changhe Road, Zhejiang, China, No. 466, No. Patentee after: Xinhua three Technology Co., Ltd. Address before: 310053 Hangzhou science and Technology Development Zone, Zhejiang high tech park, No. six and road, No. 310 Patentee before: Huasan Communication Technology Co., Ltd. |