CN107863577A - BBU capacity restorative procedure and system in a kind of storage system - Google Patents
BBU capacity restorative procedure and system in a kind of storage system Download PDFInfo
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- CN107863577A CN107863577A CN201711065179.9A CN201711065179A CN107863577A CN 107863577 A CN107863577 A CN 107863577A CN 201711065179 A CN201711065179 A CN 201711065179A CN 107863577 A CN107863577 A CN 107863577A
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- Prior art keywords
- bbu
- stood
- standing
- electricity
- charging
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- 238000000034 method Methods 0.000 title claims abstract description 44
- 230000005611 electricity Effects 0.000 claims abstract description 52
- 230000000694 effects Effects 0.000 claims abstract description 18
- 230000008439 repair process Effects 0.000 claims abstract description 11
- 238000013515 script Methods 0.000 claims description 9
- 238000005457 optimization Methods 0.000 claims description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical group [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 4
- 229910001416 lithium ion Inorganic materials 0.000 description 4
- 230000003068 static effect Effects 0.000 description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
This application discloses BBU capacity restorative procedures in a kind of storage system, including：BBU is charged, it is cut-off state to charge to BBU, BBU after being charged；BBU after charging is stood, until BBU battery activity reaches stable state, obtains BBU after the first standing；BBU is discharged with 800mA constant current after being stood to first, until BBU discharge current is zero after the first standing, BBU after being discharged；BBU after electric discharge is stood, obtains BBU after the second standing, and reads electricity readings of the BBU during standing after the second standing；When the electricity reading of BBU after reading the second standing is BBU electricity rated value, stops BBU after being stood to second and stand, BBU after being repaired.With it, can ensure system in power down, saltus step will not occur for BBU capacity, and then when can avoid the system power down occurs, data dump failure and the loss that is brought to user.Accordingly, BBU capacity repair systems in a kind of storage system disclosed by the invention, equally with above-mentioned beneficial effect.
Description
Technical field
The present invention relates to computer communication field, BBU capacity restorative procedure and system in more particularly to a kind of storage system.
Background technology
In field of data storage, often system is used as using BBU (Battery Back-up Unit, standby battery unit)
The stand-by power supply of system, so as to ensure system during power down, can the data dump in storage system be arrived in time
On hard disk, and then the data come in guarantee system are not lost, but due to the not predictability of system power failure, so must protect
Card capacity of battery during BBU is used can reach optimum performance.
BBU is made up of lithium battery and electronic control circuit, and the life-span of lithium battery depends on its degree of aging, with BBU
Hopping phenomenon often occurs in the growth of usage time, BBU capacity, and the phenomenon is the BBU because using during BBU
There is high power discharge, or caused by the power consumption of BBU inside chips.So during BBU is actually used,
BBU relative charged state, which just occurs, will not be equal to BBU absolute charged state.But among prior art, not
This phenomenon is adjusted, so during just appearing in BBU uses, the number caused by BBU electricity shortages occurs
The problem of according to storage failure, be those skilled in the art's urgent problem to be solved so how to avoid the generation of this case.
The content of the invention
In view of this, it is an object of the invention to provide BBU capacity restorative procedure and system in a kind of storage system, with solution
Certainly because saltus step occurs for BBU capacity within the storage system, caused by data dump failure the problem of.Its concrete scheme is as follows：
BBU capacity restorative procedure in a kind of storage system, including：
BBU is charged, it is cut-off state to charge to the BBU, BBU after being charged；
BBU after the charging is stood, until BBU battery activity reaches stable state after the charging, obtained
BBU after being stood to first；
BBU is discharged with 800mA constant current after being stood to described first, BBU electric discharge after being stood up to described first
Electric current is zero, BBU after being discharged；
BBU after the electric discharge is stood, obtains BBU after the second standing, and read it is described second stand after BBU quiet
Electricity reading during putting；
When the electricity reading of BBU after reading described second and standing is the electricity rated value of the BBU, stop to described
BBU is stood after second standing, BBU after being repaired.
Preferably, the process to be charged to BBU, including：
Write using control instrument I2CCTL of the C language to I2C buses, obtain I2CCTL texts；Wherein, it is described
I2C buses are the mode that storage system is communicated with the BBU；
The I2CCTL texts are compiled using GCC compilers, obtain executable file I2CCTL；
Using the executable file I2CCTL, and write shell scripts and the BBU is charged.
Preferably, the process stood to BBU after the charging, including：
2h~5h is stood to BBU after the charging.
Preferably, the process stood to BBU after the electric discharge, including：
2h~5h is stood to BBU after the electric discharge.
Preferably, the electricity rated value that the electricity reading of BBU after second standing is read is the BBU
When, stop the process that BBU is stood after being stood to described second, including：
When the electricity reading of BBU after reading described second and standing is 4000mAh, stop after being stood to described second
BBU is stood.
Preferably, the electricity rated value that the electricity reading of BBU after second standing is read is the BBU
When, stop BBU after being stood to described second and stand, after being repaired after BBU process, in addition to：
BBU after the reparation is charged again, until BBU battery activity reaches stable shape after the reparation
State.
Accordingly, the invention also discloses BBU capacity repair systems in a kind of storage system, including：
BBU charging modules, for being charged to BBU, it is cut-off state to charge to the BBU, BBU after being charged；
First stands module, for being stood to BBU after the charging, until BBU battery is lived after the charging
Property reaches stable state, obtains BBU after the first standing；
BBU discharge modules, discharged for BBU after being stood to described first with 800mA constant current, until described first
BBU discharge current is zero after standing, BBU after being discharged；
Second stands module, for being stood to BBU after the electric discharge, obtains BBU after the second standing, and described in reading
Electricity readings of the BBU during standing after second standing；
BBU repair modules, the electricity volume that the electricity reading for BBU after second standing is read is the BBU
During definite value, stop BBU after being stood to described second and stand, BBU after being repaired.
Preferably, the BBU charging modules, including：
Text writes unit, for being write using control instrument I2CCTL of the C language to I2C buses, obtains
I2CCTL texts；Wherein, the I2C buses are the mode that storage system is communicated with the BBU；
Text compilation unit, for being compiled using GCC compilers to the I2CCTL texts, obtain executable file
I2CCTL；
BBU charhing units, for utilizing the executable file I2CCTL, and shell scripts are write to the BBU
Charged.
Preferably, described first module is stood, including：
First stands unit, for standing 2h~5h to BBU after the charging.
Preferably, in addition to：
BBU optimization modules, the electricity volume that the electricity reading for BBU after second standing is read is the BBU
During definite value, stop to described second stand after BBU stand, after being repaired BBU process and then it is secondary to the reparation after
BBU is charged, until BBU battery activity reaches stable state after the reparation.
In the present invention, BBU capacity restorative procedures in a kind of storage system, including：BBU is charged, charges to BBU
For cut-off state, BBU after being charged；BBU after charging is stood, until BBU battery activity reaches steady after charging
Determine state, obtain BBU after the first standing；BBU is discharged with 800mA constant current after being stood to first, until after first stands
BBU discharge current is zero, BBU after being discharged；BBU after electric discharge is stood, obtains BBU after the second standing, and read
Electricity readings of the BBU during standing after second standing；BBU electricity reading is BBU electricity after the second standing is read
When measuring rated value, stop BBU after being stood to second and stand, BBU after being repaired.
It can be seen that because BBU inside is lithium ion battery, and lithium ion battery has reversible effect in itself, in the present invention
In, BBU this characteristic is made full use of, by the charging to BBU, electric discharge and standing, electrode can be made fully to infiltrate electrolyte,
Fully activation, so after being activated to BBU battery-active, BBU charge capacity can be allowed to reach quota state again, because
And system can be ensured during power down, saltus step will not occur for BBU capacity, and then can avoid when power down occurs for system
When, data dump failure and the loss that is brought to user.Accordingly, BBU capacity is repaiied in a kind of storage system disclosed by the invention
Complex system, equally with above-mentioned beneficial effect.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
The embodiment of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
The accompanying drawing of offer obtains other accompanying drawings.
Fig. 1 is BBU capacity restorative procedure flow charts in a kind of storage system that the embodiment of the present invention one provides；
Fig. 2 is BBU capacity restorative procedure flow charts in a kind of storage system that the embodiment of the present invention two provides；
Fig. 3 is BBU capacity repair system structure charts in a kind of storage system that the embodiment of the present invention three provides.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
The embodiment of the present invention one discloses BBU capacity restorative procedure in a kind of storage system, as shown in figure 1, this method bag
Include：
Step S11：BBU is charged, it is cut-off state to charge to BBU, BBU after being charged.
Step S12：BBU after charging is stood, until BBU battery activity reaches stable state, obtains first
BBU after standing.
In the present embodiment, first BBU is charged using shell scripts, it is cut-off state to be charged to BBU,
That is, when charging current is zero, stop charging to BBU, the step for purpose be to ensure BBU in discharge condition
When, BBU capacity is full trellis state.After BBU charges, BBU after being charged, then BBU after charging is stood, this
The purpose of step be in order to allow charging after BBU be adjusted according to the activity of its cells, allow BBU inner parameter to arrive to reach
Balance and stable state, certainly, the times stood of BBU after charging are not construed as limiting herein, all are stood with BBU among reality
Reach stable state.
Step S13：BBU is discharged with 800mA constant current after being stood to first, BBU electric discharge after being stood up to first
Electric current is zero, BBU after being discharged.
It is understood that BBU discharges after static to first, it is to excite the activity of battery, it is necessary to illustrate
, BBU is discharged with 800mA constant current stood to first herein after, is due to that the parameters of BBU in itself determine.
Step S14：BBU after electric discharge is stood, obtains BBU after the second standing, and read second stand after BBU quiet
Electricity reading during putting.
Step S15：When the electricity reading of BBU after reading the second standing is BBU electricity rated value, stop to second
BBU is stood after standing, BBU after being repaired.
It is not the process settled at one go it is understood that battery charging and discharging and the process itself being adjusted, institute
To need in the process, to stand BBU, allow its own to be adjusted and tend towards stability, and the BBU after the second standing
During standing, read second it is static after electricity readings of the BBU during standing, when read second it is static after BBU
When electricity reading is BBU electricity rated value, stops rear BBU static to second and stand, BBU after being repaired, that is, this state
Under reparation after BBU can ensure that BBU during reusing, can allow BBU electricity to reach the state of quota again,
And then avoid when power down occurs for system, the harmful effect that BBU capacity occurs saltus step and brought to user.
It can be seen that because BBU inside is lithium ion battery, and lithium ion battery has reversible effect in itself, in the present invention
In, BBU this characteristic is made full use of, by the charging to BBU, electric discharge and standing, electrode can be made fully to infiltrate electrolyte,
Fully activation, so after being activated to BBU battery-active, BBU charge capacity can be allowed to reach quota state again, because
And system can be ensured during power down, saltus step will not occur for BBU capacity, and then can avoid when power down occurs for system
When, data dump failure and the loss that is brought to user.
The embodiment of the present invention two discloses BBU capacity restorative procedures in a kind of specific storage system, real relative to upper one
Example is applied, the present embodiment has made further instruction and optimization to technical scheme.It is as shown in Fig. 2 specific：
Step S21：BBU is charged, it is cut-off state to charge to BBU, BBU after being charged；
Specifically, step S21 includes step S211, step S212 and step S213；
Step S211：Write using control instrument I2CCTL of the C language to I2C buses, obtain I2CCTL texts；Its
In, I2C buses are the mode that storage system is communicated with BBU.
Step S212：I2CCTL texts are compiled using GCC compilers, obtain executable file I2CCTL.
Step S213：Using executable file I2CCTL, and write shell scripts and BBU is charged.
In the present embodiment, it is that BBU is charged using shell scripts carrying out charging to BBU, the shell
Script is run among linux system environment, and the communication mode between system and BBU is the form using I2C buses, and
And using the I2C bus marco instrument I2CCTL of C language compiling generation, with the transmitting-receiving of control data.BBU charge to and cut
Only state, stop charging to BBU, the step for purpose be to ensure BBU in discharge condition, BBU capacity is
Full trellis state.
Step S22：BBU after charging is stood, until BBU battery activity reaches stable state, obtains first
BBU after standing.
It is understood that step S22 purpose be in order to allow charging after BBU adjusted according to the activity of its cells
It is whole, specifically, in the present embodiment, 2h~5h is stood to BBU after charging, for the time stood to BBU after charging, Ying Yishi
Depending on concrete condition among border, it is not construed as limiting herein.
Step S23：BBU is discharged with 800mA constant current after being stood to first, BBU electric discharge after being stood up to first
Electric current is zero, BBU after being discharged.
Step S24：BBU after electric discharge is stood, obtains BBU after the second standing, and read second stand after BBU quiet
Electricity reading during putting.
It is understood that step S24 purpose be in order to allow electric discharge after BBU adjusted according to the activity of its cells
It is whole, specifically, in the present embodiment, 2h~5h is stood to BBU after electric discharge, for the time stood to BBU after electric discharge, Ying Yishi
Depending on concrete condition among border, it is not construed as limiting herein.And BBU is in the process of standing after in the process, reading the second standing
In electricity reading, be to grasp Parameters variation situations of the BBU during standing after the second standing in real time.
Step S25：When the electricity reading of BBU after reading the second standing is BBU electricity rated value, stop to second
BBU is stood after standing, BBU after being repaired.
Specifically, when the electricity reading of BBU after reading the second standing is 4000mAh, stop BBU after being stood to second
Stand.It should be noted that the specified electric quantity value for being herein the BBU in the present embodiment is 4000mAh, certainly in practical application
It is central, there can also be the BBU of other specification type, BBU specified electric quantity parameter is not construed as limiting herein.
Step S26：BBU after reparation is charged again, until BBU battery activity reaches stable shape after repairing
State.
It is understood that BBU charges again after to reparation, it is to make to the charge capacity of BBU after reparation
Further optimization.Certainly, it can also be herein and multiple discharge and recharge made to BBU after reparation, allow BBU charge capacity to reach to reach
To more excellent, all are not construed as limiting herein for the purpose of reaching practical application.
Accordingly, the invention also discloses BBU capacity repair systems in a kind of storage system, as shown in figure 3, the system bag
Include：
BBU charging modules 31, for being charged to BBU, it is cut-off state to charge to BBU, BBU after being charged.
First stands module 32, for being stood to BBU after charging, until BBU battery activity reaches stable shape
State, obtain BBU after the first standing.
BBU discharge modules 33, discharged for BBU after being stood to first with 800mA constant current, until after first stands
BBU discharge current is zero, BBU after being discharged.
Second stands module 34, for being stood to BBU after electric discharge, obtains BBU after the second standing, and it is quiet to read second
Postpone electricity readings of the BBU during standing.
BBU repair modules 35, for when BBU after reading the second standing electricity reading be BBU electricity rated value when,
Stop BBU after standing to second to stand, BBU after being repaired.
Preferably, BBU charging modules 31, including：
Text writes unit, for being write using control instrument I2CCTL of the C language to I2C buses, obtains
I2CCTL texts；Wherein, I2C buses are the mode that storage system is communicated with BBU.
Text compilation unit, for being compiled using GCC compilers to I2CCTL texts, obtain executable file
I2CCTL。
BBU charhing units, for utilizing executable file I2CCTL, and write shell scripts and BBU is filled
Electricity.
Preferably, first module 32 is stood, including：
First stands unit, for standing 2h~5h to BBU after charging.
Preferably, second module 34 is stood, including：
Second stands unit, for standing 2h~5h to BBU after electric discharge.
Preferably, BBU repair modules 35, including：
BBU repairs unit, for when the electricity reading of BBU after reading the second standing is 4000mAh, stopping to second
BBU is stood after standing.
Preferably, BBU capacity repair systems in the storage system, in addition to：
BBU optimization modules, for when the electricity reading of BBU after reading the second standing is BBU electricity rated value, stopping
BBU is stood after only being stood to second, after being repaired BBU process and then it is secondary BBU after reparation is charged, up to repairing
BBU battery activity reaches stable state after multiple.
Finally, it is to be noted that, herein, such as first and second or the like relational terms be used merely to by
One entity or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or operation
Between any this actual relation or order be present.Moreover, term " comprising ", "comprising" or its any other variant meaning
Covering including for nonexcludability, so that process, method, article or equipment including a series of elements not only include that
A little key elements, but also the other element including being not expressly set out, or also include for this process, method, article or
The intrinsic key element of equipment.In the absence of more restrictions, the key element limited by sentence "including a ...", is not arranged
Except other identical element in the process including the key element, method, article or equipment being also present.
Detailed Jie has been carried out to BBU capacity restorative procedure in a kind of storage system provided by the present invention and system above
Continue, specific case used herein is set forth to the principle and embodiment of the present invention, and the explanation of above example is only
It is the method and its core concept for being used to help understand the present invention；Meanwhile for those of ordinary skill in the art, according to this hair
Bright thought, there will be changes in specific embodiments and applications, in summary, this specification content should not manage
Solve as limitation of the present invention.
Claims (10)
- A kind of 1. BBU capacity restorative procedure in storage system, it is characterised in that including：BBU is charged, it is cut-off state to charge to the BBU, BBU after being charged；BBU after the charging is stood, until BBU battery activity reaches stable state after the charging, obtains the BBU after one standing；BBU is discharged with 800mA constant current after being stood to described first, BBU discharge current after being stood up to described first It is zero, BBU after being discharged；BBU after the electric discharge is stood, obtains BBU after the second standing, and read it is described second stand after BBU standing Electricity reading in journey；When the electricity reading of BBU after reading described second and standing is the electricity rated value of the BBU, stop to described second BBU is stood after standing, BBU after being repaired.
- 2. according to the method for claim 1, it is characterised in that the process to be charged to BBU, including：Write using control instrument I2CCTL of the C language to I2C buses, obtain I2CCTL texts；Wherein, the I2C is total Line is the mode that storage system is communicated with the BBU；The I2CCTL texts are compiled using GCC compilers, obtain executable file I2CCTL；Using the executable file I2CCTL, and write shell scripts and the BBU is charged.
- 3. according to the method for claim 1, it is characterised in that the process stood to BBU after the charging, bag Include：2h~5h is stood to BBU after the charging.
- 4. according to the method for claim 1, it is characterised in that the process stood to BBU after the electric discharge, bag Include：2h~5h is stood to BBU after the electric discharge.
- 5. according to the method for claim 1, it is characterised in that the electricity of BBU after second standing is read When reading is the electricity rated value of the BBU, stop the process that BBU is stood after being stood to described second, including：When the electricity reading of BBU after reading described second and standing is 4000mAh, it is quiet to stop BBU after being stood to described second Put.
- 6. according to the method described in any one of claim 1 to 5, it is characterised in that described after second standing is read When BBU electricity reading is the electricity rated value of the BBU, stops BBU after being stood to described second and stand, after obtaining reparation After BBU process, in addition to：BBU after the reparation is charged again, until BBU battery activity reaches stable state after the reparation.
- A kind of 7. BBU capacity repair system in storage system, it is characterised in that including：BBU charging modules, for being charged to BBU, it is cut-off state to charge to the BBU, BBU after being charged；First stands module, for being stood to BBU after the charging, until BBU battery activity reaches after the charging To stable state, BBU after the first standing is obtained；BBU discharge modules, discharged for BBU after being stood to described first with 800mA constant current, until described first stands BBU discharge current is zero afterwards, BBU after being discharged；Second stands module, for being stood to BBU after the electric discharge, obtains BBU after the second standing, and read described second Electricity readings of the BBU during standing after standing；BBU repair modules, the electricity rated value that the electricity reading for BBU after second standing is read is the BBU When, stop BBU after being stood to described second and stand, BBU after being repaired.
- 8. system according to claim 7, it is characterised in that the BBU charging modules, including：Text writes unit, for being write using control instrument I2CCTL of the C language to I2C buses, obtains I2CCTL texts This；Wherein, the I2C buses are the mode that storage system is communicated with the BBU；Text compilation unit, for being compiled using GCC compilers to the I2CCTL texts, obtain executable file I2CCTL；BBU charhing units, for utilizing the executable file I2CCTL, and write shell scripts and the BBU is carried out Charging.
- 9. system according to claim 7, it is characterised in that described first stands module, including：First stands unit, for standing 2h~5h to BBU after the charging.
- 10. according to the system described in any one of claim 7 to 9, it is characterised in that also include：BBU optimization modules, the electricity rated value that the electricity reading for BBU after second standing is read is the BBU When, stop BBU after being stood to described second and stand, BBU process and then secondary BBU after the reparation is entered after being repaired Row charging, until BBU battery activity reaches stable state after the reparation.
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| CN201711065179.9A CN107863577B (en) | 2017-11-02 | 2017-11-02 | BBU capacity repair method and system in memory system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111130177A (en) * | 2019-12-31 | 2020-05-08 | 浪潮(北京)电子信息产业有限公司 | Management method, system and device of BBU |
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| CN107093776A (en) * | 2017-04-11 | 2017-08-25 | 歌尔科技有限公司 | Auto-correction method and device, the battery and unmanned plane of battery |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111130177A (en) * | 2019-12-31 | 2020-05-08 | 浪潮(北京)电子信息产业有限公司 | Management method, system and device of BBU |
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