CN107507405A - Reduce the method and system of power fail warning handling duration - Google Patents
Reduce the method and system of power fail warning handling duration Download PDFInfo
- Publication number
- CN107507405A CN107507405A CN201710862595.5A CN201710862595A CN107507405A CN 107507405 A CN107507405 A CN 107507405A CN 201710862595 A CN201710862595 A CN 201710862595A CN 107507405 A CN107507405 A CN 107507405A
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- Prior art keywords
- power
- fail warning
- power fail
- storage capacitor
- handling duration
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C19/00—Electric signal transmission systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0631—Management of faults, events, alarms or notifications using root cause analysis; using analysis of correlation between notifications, alarms or events based on decision criteria, e.g. hierarchy, tree or time analysis
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0677—Localisation of faults
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0681—Configuration of triggering conditions
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Small-Scale Networks (AREA)
Abstract
The invention discloses a kind of method and system for reducing power fail warning handling duration, it is related to optic communication power technique fields.The system includes power module, storage capacitor, power supply monitoring module, FPGA, network processing unit and destination；Power module is used for：Input supply voltage；Storage capacitor is used for：Storage capacitor is set, storage capacitor is provided in router power down；Power supply monitoring module is used for：When monitoring that the supply voltage of power module input is less than or equal to alarming threshold voltage, judge whether router occurs power down, if sending power fail warning signal to FPGA, otherwise restart work；FPGA is used for：After receiving power fail warning signal, the power fail warning message that will store in advance is sent to destination by network processing unit.Power fail warning Message processing duration can be promoted to Microsecond grade by the present invention, and then greatly improve the dependable with function of power fail warning.
Description
Technical field
The present invention relates to optic communication power technique fields, and in particular to it is a kind of reduce power fail warning handling duration method and
System.
Background technology
In recent years as the fast development of the trade network such as the popularization of 4G technologies and smart city, wisdom power network, data measure
The growth of existing geometry level, the exchange capacity of IPRAN (wireless access network IPization) fot router are also increasing.Exchange capacity
The power consumption that quick increase directly results in fot router is also increasing, in the case where power fail warning handling duration is constant, plate
The storage capacitor capacity of card and the proportional relation of power consumption, i.e. board power consumption is bigger, and required storage capacitor capacity is bigger.
Shown in Figure 1, Traditional IP RAN router power fail warning methods are generally：By power supply monitoring module, (power supply is supervised
Control chip) magnitude of voltage (i.e. power module minimum input voltage U1) after precision resistance R1 and R2 partial pressure is sampled, when adopting
When the magnitude of voltage of sample is less than or equal to alarm voltage threshold magnitude of voltage U1, power supply monitoring module can export a trailing edge to CPU, with
Triggering CPU interrupt process (CPU sends interruption message by network processing unit and is sent to network management system).Because trigger CPU to interrupt
Process by User space, it is necessary to be switched to kernel state；And ms (millis will be reached as the duration needed for User space is switched to kernel state
Second) level, the duration of interruption message is being sent plus CPU, whole power fail warning process needs 2ms or so duration altogether, is
Ensure normally completing, it is necessary to reserve the storage capacitor for the 2ms that works on board for power fail warning.
Ginseng is shown in Table 1, and it is 47 1000uF that 1 piece of power consumption, which reaches 400W board additionally to reserve 2ms storage capacitor amount,
Storage capacitor, and fot router (PCB, printed circuit board) area be it is very limited amount of, to increase board power consumption, then
Need the area of increase board；If increasing the area of board, board may be caused can not to be placed because area is excessive.Therefore,
On the basis of board exchange capacity constantly increase, then extra reserved 2ms storage capacitor, undoubtedly seriously exacerbate the life of board
Difficulty is produced, also improves the production cost of board.
Storage capacitor needed for table 1, the power fail warning method realized based on Linux interrupt process
The content of the invention
For defect present in prior art, present invention solves the technical problem that being：How the place of power fail warning is reduced
Manage duration.Power fail warning Message processing duration can be promoted to Microsecond grade by the present invention, and then greatly improve power fail warning
Dependable with function.
To achieve the above objectives, the method provided by the invention for reducing power fail warning handling duration, comprises the following steps：
Step A：When router monitors that power input voltage is less than or equal to alarming threshold voltage, judge whether router is sent out
Raw power down, if so, going to step B, otherwise re-executes step A；
Step B：The power fail warning message stored in advance is sent by FPGA, to destination.
It is further comprising the steps of before step A on the basis of above-mentioned technical proposal：The energy storage electricity of fot router is set
Hold C, C calculation formula is：C=2Pt/ (U12-U22), power when wherein P is board normal work, U1 is alarming threshold electricity
Pressure, U2 is power module minimum input voltage, and t is power fail warning handling duration.
On the basis of above-mentioned technical proposal, the power fail warning handling duration is that FPGA sends power fail warning message to mesh
End needed for duration.
On the basis of above-mentioned technical proposal, step B is further comprising the steps of：Preserve the data of power fail warning.
On the basis of above-mentioned technical proposal, destination described in step B is network management system or Upper Switch.
The system of the reduction power fail warning handling duration provided by the invention for realizing the above method, including power module, storage
Can electric capacity, power supply monitoring module, network processing unit and destination；
Power module is used for：Input supply voltage；
Storage capacitor is used for：Storage capacitor is set, storage capacitor is provided in router power down；
Power supply monitoring module is used for：When monitoring that the supply voltage of power module input is less than or equal to alarming threshold voltage,
Judge whether router occurs power down, if sending power fail warning signal to FPGA, otherwise restart work；
FPGA is used for：After receiving power fail warning signal, the power fail warning message that will store in advance is sent out by network processing unit
Deliver to destination.
On the basis of above-mentioned technical proposal, the calculation formula for the storage capacitor C that the storage capacitor is set is：C=
2Pt/(U12-U22), power when wherein P is board normal work, U1 is alarming threshold voltage, and U2 is that power module minimum is defeated
Enter voltage, t is power fail warning handling duration.
On the basis of above-mentioned technical proposal, the power fail warning handling duration is that FPGA sends power fail warning message to mesh
End needed for duration.
On the basis of above-mentioned technical proposal, the power supply timing management of the power supply monitoring module including incorporating filter and
Monitoring chip.
On the basis of above-mentioned technical proposal, the power supply monitoring module is additionally operable to after power down occurs for router：Backup
The data of power fail warning.
Compared with prior art, the advantage of the invention is that：
It can be seen from step A and B of the present invention, compared with being sent by CPU interrupt message in the prior art, the present invention passes through
FPGA sends power fail warning message, it is not necessary to is switched to kernel state from User space, and then significantly reduces power fail warning message hair
Duration is sent, is obtained after tested, a length of 2us (microsecond) when power fail warning message of the invention is sent, with falling for 2ms in the prior art
Electric alarm duration is compared, and power fail warning message transmission duration is improved an order of magnitude by the present invention, and then is greatly improved
The dependable with function of power fail warning.
At the same time, obtain after tested, only need 5 1000uF storage capacitor can when board power consumption reaches 400W
With the whole power fail warning process of duration 0.2us needed for realization, therefore, the present invention is reducing power fail warning message transmission duration
On the basis of, the storage capacitor sent needed for power fail warning message is significantly reduced, and then rationally control cost and the face of board
Product, significantly reduce the production difficulty of board.
(2) present invention calculates storage capacitor by the formula of independent research, because the calculating factor of storage capacitor considers
Operating power, alarming threshold voltage, power module minimum input voltage and the power fail warning handling duration of board, therefore this are arrived
Inventing the storage capacitor being calculated can be while the transmission of power fail warning message is ensured, the appearance of reasonable control storage capacitor
Amount, further controls the cost and area of board, therewith, also further significantly reduces the production difficulty of board.
Brief description of the drawings
Fig. 1 is the FB(flow block) of IPRAN routers power fail warning method of the prior art；
Fig. 2 is the connection block diagram for the system for reducing power fail warning handling duration in the embodiment of the present invention.
Embodiment
The present invention is described in further detail below in conjunction with drawings and Examples.
The method of reduction power fail warning handling duration in the embodiment of the present invention, comprises the following steps：
S1：Storage capacitor C, the C calculation formula for setting IPRAN fot routers is：C=2Pt/ (U12-U22), wherein P
For board normal work when power, U1 is alarming threshold voltage, and U2 is power module minimum input voltage, and t is power fail warning
Handling duration, go to S2.
S1 purpose is：Storage capacitor is used to provide extremely short duration voltage after power supply power-fail for router, enables FPGA
Enough transmissions that power fail warning message can be completed after power supply power-fail.Accumulator is mainly to be realized by high power capacity,
The power of different IPRAN fot routers is different, so as to which the size requirement to storage capacitor is also different.Storage capacitor must
Must be moderate, if larger, the cost of board can be increased and that pcb board fails to lay down be present；If smaller, occur to fall
Cable warning message do not send successfully will power down situation.Therefore, it is the key for implementing the present invention to choose suitable storage capacitor.
Storage capacitor is calculated by the formula of independent research in S1, because the calculating factor of storage capacitor take into account plate
Operating power, alarming threshold voltage, power module minimum input voltage and the power fail warning handling duration of card, therefore present invention meter
Obtained storage capacitor can enter while the transmission of power fail warning message is ensured, the capacity of reasonable control storage capacitor
And the cost and area of board are rationally controlled, significantly reduce the production difficulty of board.
T in S1 be in S3 FPGA send power fail warning message to needed for destination duration (perform needed for S3 when
It is long), t can be gathered by first carrying out S2 to S3 in advance.
S2：When router monitors that power input voltage is less than or equal to alarming threshold voltage, judge itself (i.e. router)
Whether power down occurs, if so, going to S3, otherwise re-execute S1.
S3：Pass through FPGA (Field-Programmable Gate Array, field programmable gate array, Programmable
Part) the power fail warning message stored in advance is sent, to destination (network management system or Upper Switch).
S3 is further comprising the steps of：The data of power fail warning are preserved, its purpose is：When there is power fail warning failure, fortune
Dimension personnel can easily transfer the data of power fail warning, and then be analyzed with the alarm data of network management system, be easy to event
Barrier is accurately positioned.
Compared with being sent by CPU interrupt message in the prior art, the present invention sends power fail warning message by FPGA, no
Need to be switched to kernel state from User space, and then significantly reduce power fail warning message and send duration, obtain after tested, the present invention
Power fail warning message send when a length of 2us (microsecond), compared with the power fail warning duration of 2ms in the prior art, the present invention will
Power fail warning message sends duration and improves an order of magnitude, and then greatly improves reliability and the practicality of power fail warning
Property.
At the same time, ginseng is shown in Table 2, and only needs 5 1000uF storage capacitor just when board power consumption reaches 400W
Duration 0.2us whole power fail warning process needed for can realizing, therefore, the present invention are reducing power fail warning message transmission duration
On the basis of, significantly reduce the storage capacitor sent needed for power fail warning message, and then rationally control the cost of board with
Area, significantly reduce the production difficulty of board.
Storage capacitor amount in table 2, the embodiment of the present invention needed for power fail warning
It is shown in Figure 2, the system of the reduction power fail warning handling duration for realizing the above method in the embodiment of the present invention,
Including power module (48V turns 12V insulating power supplies module), storage capacitor, power supply monitoring module, FPGA, network processing unit and mesh
End (being network management system in the present embodiment).
Power module is used for：Input supply voltage.
Storage capacitor is used for：Storage capacitor is set, storage capacitor is provided in router power down；The storage capacitor C of setting
Calculation formula be：C=2Pt/ (U12-U22), power when wherein P is board normal work, U1 is alarming threshold voltage, U2
For power module minimum input voltage, t is that (i.e. FPGA is sent needed for power fail warning message to destination power fail warning handling duration
Duration).
Power supply monitoring module is used for：When monitoring that the supply voltage of power module input is less than or equal to alarming threshold voltage,
Judge whether router occurs power down, if sending power fail warning signal to FPGA, otherwise restart work.
Power supply monitoring module uses the power supply timing management and monitoring chip of incorporating filter, with power supply of the prior art
Monitoring chip, power supply monitoring module reduction voltage monitoring circuit；Power supply monitoring module is additionally operable to after power down occurs for router：
The data of backup power fail warning.
FPGA is used for：After receiving power fail warning signal, the power fail warning message that will store in advance is sent out by network processing unit
Deliver to destination.
It should be noted that：System provided in an embodiment of the present invention is when carrying out intermodule communication, only with above-mentioned each function
The division progress of module, can be as needed and by above-mentioned function distribution by different function moulds for example, in practical application
Block is completed, i.e., the internal structure of system is divided into different functional modules, to complete all or part of work(described above
Energy.
Further, the present invention is not limited to the above-described embodiments, for those skilled in the art,
Without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications are also considered as the present invention
Protection domain within.The content not being described in detail in this specification belongs to existing skill known to professional and technical personnel in the field
Art.
Claims (10)
- A kind of 1. method for reducing power fail warning handling duration, it is characterised in that this method comprises the following steps：Step A：When router monitors that power input voltage is less than or equal to alarming threshold voltage, judge whether router falls Electricity, if so, going to step B, otherwise re-execute step A；Step B：The power fail warning message stored in advance is sent by FPGA, to destination.
- 2. reduce the method for power fail warning handling duration as claimed in claim 1, it is characterised in that also include before step A Following steps：Storage capacitor C, the C calculation formula for setting fot router is：C=2Pt/ (U12-U22), wherein P is board Power during normal work, U1 are alarming threshold voltage, and U2 is power module minimum input voltage, when t is that power fail warning is handled It is long.
- 3. reduce the method for power fail warning handling duration as claimed in claim 2, it is characterised in that：The power fail warning processing Shi Changwei FPGA send power fail warning message to the duration needed for destination.
- 4. the method for the reduction power fail warning handling duration as described in any one of claims 1 to 3, it is characterised in that step B is also Comprise the following steps：Preserve the data of power fail warning.
- 5. the method for the reduction power fail warning handling duration as described in any one of claims 1 to 3, it is characterised in that：In step B The destination is network management system or Upper Switch.
- 6. a kind of system for the reduction power fail warning handling duration for realizing any one of claim 1 to 5 methods described, its feature exist In：The system includes power module, storage capacitor, power supply monitoring module, FPGA, network processing unit and destination；Power module is used for：Input supply voltage；Storage capacitor is used for：Storage capacitor is set, storage capacitor is provided in router power down；Power supply monitoring module is used for：When monitoring that the supply voltage of power module input is less than or equal to alarming threshold voltage, judge Whether router occurs power down, if sending power fail warning signal to FPGA, otherwise restarts work；FPGA is used for：After receiving power fail warning signal, the power fail warning message that will store in advance, by network processing unit send to Destination.
- 7. reduce the system of power fail warning handling duration as claimed in claim 6, it is characterised in that：The storage capacitor is set Storage capacitor C calculation formula be：C=2Pt/ (U12- U22), power when wherein P is board normal work, U1 is alarm Threshold voltage, U2 are power module minimum input voltage, and t is power fail warning handling duration.
- 8. reduce the system of power fail warning handling duration as claimed in claim 7, it is characterised in that：The power fail warning processing Shi Changwei FPGA send power fail warning message to the duration needed for destination.
- 9. the system of the reduction power fail warning handling duration as described in any one of claim 6 to 8, it is characterised in that：The electricity Source monitoring modular includes the power supply timing management and monitoring chip of incorporating filter.
- 10. the system of the reduction power fail warning handling duration as described in any one of claim 6 to 8, it is characterised in that：The electricity Source monitoring modular is additionally operable to after power down occurs for router：The data of backup power fail warning.
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| CN201710862595.5A CN107507405A (en) | 2017-09-22 | 2017-09-22 | Reduce the method and system of power fail warning handling duration |
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| CN201710862595.5A CN107507405A (en) | 2017-09-22 | 2017-09-22 | Reduce the method and system of power fail warning handling duration |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109257185A (en) * | 2018-11-21 | 2019-01-22 | 新华三技术有限公司 | A kind of network equipment, service card, logic device and notification information transmission method |
| CN110058074A (en) * | 2019-04-30 | 2019-07-26 | 烽火通信科技股份有限公司 | A kind of power failure warning circuit and its control method |
| CN110112699A (en) * | 2019-04-02 | 2019-08-09 | 烽火通信科技股份有限公司 | The method and system that chip re-powers after a kind of power supply hit |
| EP3716639A1 (en) * | 2019-03-29 | 2020-09-30 | Schneider Electric Industries SAS | Methods and systems for supervising an electrical installation |
| CN114124644A (en) * | 2021-11-17 | 2022-03-01 | 烽火通信科技股份有限公司 | Ethernet OAM (operation administration and maintenance) alarming method and device based on Linux kernel mode |
| CN117389789A (en) * | 2023-12-08 | 2024-01-12 | 四川恒湾科技有限公司 | Power-down information storage and reporting method and system for O-RU equipment |
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| CN109257185A (en) * | 2018-11-21 | 2019-01-22 | 新华三技术有限公司 | A kind of network equipment, service card, logic device and notification information transmission method |
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