CN100359818C - Device and method for realizing backup of single plate - Google Patents
Device and method for realizing backup of single plate Download PDFInfo
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- CN100359818C CN100359818C CNB021603960A CN02160396A CN100359818C CN 100359818 C CN100359818 C CN 100359818C CN B021603960 A CNB021603960 A CN B021603960A CN 02160396 A CN02160396 A CN 02160396A CN 100359818 C CN100359818 C CN 100359818C
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- board
- controlled
- controlled board
- control
- veneer
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Abstract
The present invention relates to a device and a method for realizing the backup of a great number of operating single plates, which is especially suitable for the N+1 backup technology of a controlling and controlled application system. The device of the present invention is composed of a control plate, N+1 pieces of controlled plates and a back plate, wherein the switching of the N+1 backups of the controlled plates is completed through a switching control wire on the back plate, is initiated and controlled by the control plate, and is realized through the revision of the logic addresses on the controlled plates. The present invention solves the problem of complicated backup structure in the prior art, can reduce the kinds of the controlled plates through the adoption of an N+1 switching structure, lowers the cost of an interface chip and the wire distributing density of the back plate, and realizes the low cost backups of a plurality of pieces of controlled plates.
Description
Technical field
The present invention relates to a kind of method and device that the extensive work veneer is backed up of being used for, relate in particular to the N+1 redundancy technique that is applicable to master control, controlled way application system.
Background technology
In the disclosed patent No. of China Intellectual Property Office is 99235903.1 document, set forth a kind of backup architecture that is used for the stored-program control exchange subscriber line circuit.This structure needs N piece user's plate and a user ID veneer, and every block of user's plate all links to each other with the backup veneer, switches to the position work that damages user's plate by the user ID veneer when user's plate damages, and has so just substituted the user's plate that damages.
In above-mentioned technology, for realizing to produce another kind of special backup veneer to the purpose of user's board back-up, increased the kind of veneer, in addition under the many situations of the outlet of every block of user's plate, because every block of user's plate all will be guided to outlet on the backup veneer, the backboard signal that causes backing up veneer like this is very many, and all than higher, this backup architecture especially is not suitable for using in the system of multi-user's plate to the requirement of the area of backup veneer and connector.
Summary of the invention
The object of the invention is to provide a kind of method and device that veneer is backed up realized, in order to simplied system structure and realize that backup is switched fast.
The present invention is achieved in that
A kind of device that veneer is backed up realized is characterized in that:
This device is made of control board, N+1 piece controlled board and backboard;
Described backboard provides being connected of port and control signal between control board and the N+1 piece controlled board;
Described control board, N+1 piece controlled board all insert in the groove position of backboard, and the groove position of described N+1 piece controlled board is adjacent;
Described N+1 piece controlled board is provided with main port and standby port, enters the port signal of N+1 piece controlled board, delivers to be adjacent and near the standby port of the controlled board of control board in the main port of delivering to away from a certain controlled board of control board;
Control bus by sharing between control board and the N+1 piece controlled board is realized the control of control board to controlled board, and described control board is realized closing and opening controlled board by control bus; Selection to the primary, spare port of controlled board; Writing of logic card address.
Described N+1 piece controlled board is the identical veneer of model.
Arbitrary controlled board is that it is adjacent and away from the backup veneer of the controlled board of control board in the described N+1 piece controlled board.
Described control board is closed the enable line of the M controlled board that breaks down by control bus, comprise that this controlled board is active and standby with port and bus interface, the logical address of the N controlled board of the logical address of N+1 controlled board being arranged to be adjacent by control bus again, simultaneously this adjacent N controlled board is arranged to the hollow plate state, promptly as the backup veneer, finish once and switch, and then N controlled board and N-1 controlled board repeated above-mentioned switching, adjacent until the controlled board that backs up veneer and break down for M number, through once switching, realize backup again.
A kind of method that veneer is backed up of realizing may further comprise the steps at least:
Be set near the controlled board of control board that it is adjacent but from the backup veneer of control board controlled board far away;
To link to each other with main port near the standby port of the controlled board of control board from control board adjacent controlled board far away;
Control bus by control board realizes that the active and standby port of controlled board is selected to the closing and opening of controlled board, the writing of logical address.
Described backup to controlled board is by switching the control signal of backboard, revises that the logical address of controlled board realizes.
This method further comprises following switching:
Control board is closed the enable line of the M controlled board that breaks down by control bus, comprises that this controlled board is active and standby with port and bus interface;
The logical address of the N controlled board that control board is arranged to the logical address of N+1 controlled board to be adjacent by control bus again is arranged to the hollow plate state with this adjacent N controlled board simultaneously, promptly as the backup veneer, finishes once and switches;
And then N controlled board and N-1 controlled board repeated above-mentioned switching, and adjacent until the backup veneer with the controlled board that breaks down for M number, again through once switching, realize backing up.
Describedly once switch:
Close the enable signal with the adjacent controlled board of controlled board earlier, make this plate become the backup veneer;
Plate by control bus selects signal to choose the controlled board of close control board, write signal is dragged down, send with adjacent but from the logical address of control board controlled board far away near the controlled board of control board, send active and standby port according to database information on the control board simultaneously and select signal, open standby port near the control board controlled board, open enable signal again, realize switching as the controlled board of the close control board that backs up veneer with function adjacent near the control board controlled board but between control board controlled board far away.
Described control board can be used to accelerate switching time by the current state of auxiliary communication bus inquiry controlled board.
Effect of the present invention is: solved backup architecture complicated problems in the prior art, the backup veneer is not set separately, but realized by switching successively of controlled board.By adopting N+1 to switch the kind that structure can reduce controlled board, reduce the cost of interface chip and the wiring density of backboard, realized the low cost backup of polylith controlled board.N+1 switches and can cooperate software to finish by hardware, and control is flexible, and switch speed is fast.According to practical application, whole system can also be divided into a plurality of N+1 backup architectures, improve switch speed and system redundancy simultaneously.
Description of drawings
Fig. 1 is that N+1 switches structural representation.
Fig. 2 is that N+1 switches the control bus sequential chart.
Embodiment
Below in conjunction with accompanying drawing this device and implementation method are described in detail.
As shown in Figure 1: the present invention is made of control board, N+1 piece controlled board and a backboard, and control board, controlled board insert on the groove position of backboard, and all controlled board insert in adjacent groove position.Arbitrary controlled board is the backup veneer of its adjacent controlled board, is backup veneers of controlled board 3 as controlled board 4, and controlled board 3 is backup veneers of controlled board 2.An one cover main port and a cover standby port are arranged on the every controlled board, and the main port that standby port is adjacent controlled board links to each other.The signal that the outside enters controlled board is delivered to the standby port of adjacent controlled board in the main port of delivering to a controlled board.The control bus that has a cover to share between control board and controlled board, control board is the effector of bus, realizes closing and opening of controlled board by this bus, the selection of the active and standby port of controlled board, logical address function such as write.
The N+1 backup of controlled board is switched by the control line of switching of backboard and is finished, and is initiated and control by control board, realizes by the logical address of revising on the controlled board.
The control bus interface is composed as follows: (with the 8+1 structure is example, and promptly control board one side has 9 controlled board)
| The holding wire title | Number of signals | The signal effect |
| LN | 3 | Logical address |
| CS | 4 | CARD SELECT plate selects signal |
| WE | 1 | Write signal |
| CMAS | 1 | The active and standby port of controlled board is selected signal |
| STEN | 9 | The controlled board enable signal, wherein one of every plate correspondence |
Wherein WE, LN and CMAS almost send simultaneously, and sending of CS signal will be more a little earlier, and the sequential of this bus is similar to the sequential of writing of CPU, and the CS holding wire is equivalent to address wire, and the WE signal is equivalent to write signal, and LN and CMAS are equivalent to data-signal.The sequential of bus as shown in Figure 2.
When controlled board broke down, control board utilized holding wire STEN that the controlled board that breaks down is closed, and began N+1 then and switched, and N+1 switches by switching control bus and finishes.
Contrast Fig. 1, if No. 1 plate breaks down, control board is at first turned off No. 1 plate (comprising active and standby with port and bus interface) by the enable line STEN1 of No. 1 controlled board, by control bus the logical address of No. 9 plates is arranged to the logical address of No. 8 plates then, simultaneously No. 8 plates is arranged to the hollow plate state.Detailed process is the STEN signal of closing No. 8 plates earlier, this moment, No. 8 plates became the backup veneer, choose plate No. 9 with the CS signal then, the WE signal is dragged down, send the logical address (LN) of No. 8 plates, send active and standby port according to database information on the control board simultaneously and select signal (CMAS), open the standby port of No. 9 controlled board.Work in the state of No. 8 plates through No. 9 plates after the above-mentioned action by standby port, at this moment open the STEN of No. 9 plates, controlled board 9 is started working, and has so just finished the function of No. 9 plates and No. 8 plates and has exchanged.Repeat above-mentioned action, No. 7 plates and No. 8 plate functions are exchanged, No. 6 plates and No. 7 plate functions are exchanged ..., final No. 2 plates work in the position of No. 1 plate, have so just finished switching of N+1.Be set to be adjacent near the controlled board of control board because of the present invention but from the backup veneer of control board controlled board far away, break down as this controlled board, then directly switch, realize backup, promptly N at this moment is zero.
For the time of accelerating to switch, the process of at every turn switching is not confirmed that in whole reversed process after reversed process finished, control board can be by the current state of auxiliary communication bus inquiry controlled board.
Claims (9)
1, a kind of device that veneer is backed up realized is characterized in that:
This device is made of control board, N+1 piece controlled board and backboard;
Described backboard provides being connected of port and control signal between control board and the N+1 piece controlled board;
Described control board, N+1 piece controlled board all insert in the groove position of backboard, and the groove position of described N+1 piece controlled board is adjacent;
Described N+1 piece controlled board is provided with main port and standby port, enters the port signal of N+1 piece controlled board, delivers to be adjacent and near the standby port of the controlled board of control board in the main port of delivering to away from a certain controlled board of control board;
Control bus by sharing between control board and the N+1 piece controlled board is realized the control of control board to controlled board, and described control board is realized closing and opening controlled board by control bus; Selection to the primary, spare port of controlled board; Writing of logic card address.
2, realize device that veneer is backed up according to claim 1, it is characterized in that: described N+1 piece controlled board is the veneer of same model.
3, realize device that veneer is backed up as claimed in claim 1 or 2, it is characterized in that: arbitrary controlled board is that it is adjacent and away from the backup veneer of the controlled board of control board in the described N+1 piece controlled board.
4, realize device that veneer is backed up as claimed in claim 1 or 2, it is characterized in that: described control board is closed the enable line of the M controlled board that breaks down by control bus, comprise that this controlled board is active and standby with port and bus interface, the logical address of the N controlled board of the logical address of N+1 controlled board being arranged to be adjacent by control bus again, simultaneously this adjacent N controlled board is arranged to the hollow plate state, promptly as the backup veneer, finish once and switch, and then N controlled board and N-1 controlled board repeated above-mentioned switching, adjacent until the controlled board that backs up veneer and break down for M number, through once switching, realize backup again.
5, a kind of method that veneer is backed up of realizing may further comprise the steps at least:
Be set to be adjacent but from the backup veneer of control board controlled board far away near the controlled board of control board;
To link to each other with main port near the standby port of the controlled board of control board from control board adjacent controlled board far away;
Control bus by control board realizes that the active and standby port of controlled board is selected to the closing and opening of controlled board, the writing of logical address.
6, as realization as described in the claim 5 to the method that veneer backs up, it is characterized in that: described backup to controlled board is by switching the control signal of backboard, revises that the logical address of controlled board realizes.
7, the method that veneer is backed up as realization as described in the claim 5 further comprises following switching:
Control board is closed the enable line of the M controlled board that breaks down by control bus, comprises that this controlled board is active and standby with port and bus interface;
The logical address of the N controlled board that control board is arranged to the logical address of N+1 controlled board to be adjacent by control bus again is arranged to the hollow plate state with this adjacent N controlled board simultaneously, promptly as the backup veneer, finishes once and switches;
And then N controlled board and N-1 controlled board repeated above-mentioned switching, and adjacent until the backup veneer with the controlled board that breaks down for M number, again through once switching, realize backing up.
8, as realization as described in the claim 7 to the method that veneer backs up, it is characterized in that describedly once switching:
Close earlier with adjacent but, make this plate become the backup veneer from the enable signal of control board controlled board far away near the controlled board of control board;
Plate by control bus selects signal to choose the controlled board of close control board, write signal is dragged down, send with adjacent but from the logical address of control board controlled board far away near the controlled board of control board, send active and standby port according to database information on the control board simultaneously and select signal, open standby port near the control board controlled board, open enable signal again, realize switching as the controlled board of the close control board that backs up veneer with function adjacent near the control board controlled board but between control board controlled board far away.
9, as realization as described in the claim 5 to the method that veneer backs up, it is characterized in that: described control board can be used to accelerate switching time by the current state of auxiliary communication bus inquiry controlled board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021603960A CN100359818C (en) | 2002-12-30 | 2002-12-30 | Device and method for realizing backup of single plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021603960A CN100359818C (en) | 2002-12-30 | 2002-12-30 | Device and method for realizing backup of single plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1512676A CN1512676A (en) | 2004-07-14 |
| CN100359818C true CN100359818C (en) | 2008-01-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021603960A Expired - Fee Related CN100359818C (en) | 2002-12-30 | 2002-12-30 | Device and method for realizing backup of single plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100359818C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100530996C (en) * | 2004-08-06 | 2009-08-19 | 华为技术有限公司 | System and method for realizing veneer active/standby changeover in communication equipment |
| CN100433574C (en) * | 2004-09-30 | 2008-11-12 | 中兴通讯股份有限公司 | Redundancy backup system and RF switching device for base station forward link |
| CN100433575C (en) * | 2004-09-30 | 2008-11-12 | 中兴通讯股份有限公司 | Redundancy backup system and RF switching device for base station backward link |
| CN100386991C (en) * | 2004-11-19 | 2008-05-07 | 上海贝尔阿尔卡特股份有限公司 | Protector of low order RMB high order service board for transmission apparatus of synchronous digital system |
| CN100341257C (en) * | 2004-12-15 | 2007-10-03 | 华为技术有限公司 | ASC realizing method in switching single board load |
| CN1885860B (en) * | 2005-06-24 | 2010-10-13 | 华为技术有限公司 | Single plate interface expanding system and method for expanding single plate interface |
| CN1968075B (en) * | 2006-05-23 | 2010-05-12 | 华为技术有限公司 | Distributed hot-standby logic device and primary/standby board setting method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0888673A (en) * | 1994-09-20 | 1996-04-02 | Hitachi Ltd | Line changeover device |
| CN2398775Y (en) * | 1999-07-21 | 2000-09-27 | 深圳市华为技术有限公司 | Hardware implementation device of main spare operate mode |
| CN1092864C (en) * | 1998-08-25 | 2002-10-16 | 华为技术有限公司 | Master backup reverse device |
-
2002
- 2002-12-30 CN CNB021603960A patent/CN100359818C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0888673A (en) * | 1994-09-20 | 1996-04-02 | Hitachi Ltd | Line changeover device |
| CN1092864C (en) * | 1998-08-25 | 2002-10-16 | 华为技术有限公司 | Master backup reverse device |
| CN2398775Y (en) * | 1999-07-21 | 2000-09-27 | 深圳市华为技术有限公司 | Hardware implementation device of main spare operate mode |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1512676A (en) | 2004-07-14 |
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Granted publication date: 20080102 Termination date: 20171230 |