CN102347853A - Cross system and clock switching method thereof - Google Patents
Cross system and clock switching method thereof Download PDFInfo
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- CN102347853A CN102347853A CN2010102454710A CN201010245471A CN102347853A CN 102347853 A CN102347853 A CN 102347853A CN 2010102454710 A CN2010102454710 A CN 2010102454710A CN 201010245471 A CN201010245471 A CN 201010245471A CN 102347853 A CN102347853 A CN 102347853A
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Abstract
The invention provides a cross system and a clock switching method thereof. The method comprises the following steps of: outputting a clock signal to a backboard through a long pin of a connector with the long pin and a short pin and outputting a clock indicating signal to the backboard through the short pin of the connector by using each unit single board capable of providing a system clock; and detecting and analyzing the clock indicating signals received from each unit single board by the backboard, and switching the system clock into the clock signal output by a certain unit single board according to an analysis result. By the method, service interrupts can be effectively ensured not to be produced by the plugging and unplugging of the single boards; and the method is easy to implement and relatively lower in cost.
Description
Technical field
The present invention relates to the protection and the recovery technology of communications field transmission network multiplex (MUX), relate in particular to a kind of cross system and carry out the method that clock switches.
Background technology
Transmission network is the core of communication network, is the bottom bearer network, and stability and the reliability that guarantees communication network played crucial effect.Therefore; In order to guarantee the reliability and stability of system; Cross system all has the strict protection mechanism of a cover; Cross system is operated in same clock zone; The clock source goes wrong in this cross system in case offer, and will cause whole this cross system paralysis, so must be able to find a kind of reliable clock source lossless switching method; System can switch or restore data reliably, to guarantee that transmission network can system's operate as normal.
Fig. 1 is a kind of typical distributed cross system, comprises N cross unit, and promptly cross unit 1 to cross unit N, and N is a positive integer.This distributed cross system is operated on the same clock zone, and the source of this clock maybe be from cross unit 1 in the cross unit N, the priority in clock source follow respectively cross unit 1＞cross unit 2＞cross unit 3＞... cross unit N.Each cross unit can be inserted on the backboard through connector, toward back plate output clock index signal and clock signal.The monitoring modular of collection and handover module are arranged on each cross unit; Said acquisition module is responsible for gathering the clock index signal of each cross unit veneer; Said handover module is responsible for judging that according to the data that acquisition module collects whether each cross unit is in the groove position; And then select the clock signal that the highest cross unit of cross unit medium priority in the groove position provides in the distributed cross system, system clock is switched to the clock signal that this cross unit provides.
Fig. 2 is a kind of typical centralized cross system, comprises N business unit, a M clock unit, a cross unit, and N and M are positive integer.This centralized cross system is operated on the same clock zone, and the source of this clock maybe be from clock unit 1 to cross unit M, the priority in clock source follow respectively clock unit 1＞clock unit 2＞clock unit 3＞... clock unit M.The monitoring modular of collection and handover module are arranged on the cross unit; Said acquisition module is responsible for gathering the clock index signal of each clock unit veneer; Said handover module is responsible for judging that according to the data that acquisition module collects whether each clock unit is in the groove position; And then select the clock signal that the highest clock unit of clock unit medium priority in the groove position provides in the centralized cross system, system clock is switched to the clock signal that this clock unit provides.
When carrying out the clock switching; Be according to detecting the interface level value; Need to judge whether to switch with this; Trigger switching according to switch logic; The accuracy of switching judging depends on whether the level quality testing of hardware is reliable; Its fail safe is not good, the phenomenon of the service disconnection that causes might occur plugging.In order to ensure the reliability of switching, exist at present to be employed in the processing mode that sensitive switch is set on the panel, the plug behavior is foreseen in the behavior of sensitive switch sense operation personnel touch unit veneer in advance, guarantees the accuracy of switching.But when only being when existing touch action really not plug, sensitive switch also can perception, disconnected situation will occur judging by accident.
Summary of the invention
The technical problem that the present invention will solve is that the method that a kind of cross system is provided and carries out the clock switching can effectively be guaranteed to plug veneer and can not cause service disconnection, and is easy to realize that cost is lower.
In order to solve the problems of the technologies described above, the present invention proposes to carry out the method that clock switches in a kind of cross system, comprises step:
Each can provide the unit veneer of system clock respectively through a minute hand toward back plate clock signal with connector of minute hand and hour hand, and exports the clock index signal through the hour hand toward back plate of said connector;
Detect and analyze the clock index signal of each the said unit veneer that receives on the said backboard, system clock is switched to the clock signal of a certain said unit veneer output according to analysis result.
Further, said method also can have following characteristics:
Said cross system is distributed cross system, and said distributed cross system comprises one or more cross unit veneer; It is said that the unit veneer of system clock can be provided is said cross unit veneer;
When in said distributed cross system, carrying out the system clock switching; Be the clock index signal that detects and analyze each the said cross unit veneer that receives on the said backboard by each said cross unit respectively, its work clock switched to the clock signal of a certain said cross unit veneer output according to analysis result.
Further, said method also can have following characteristics:
Said cross system is centralized cross system, and said centralized cross system comprises a cross unit veneer and one or more business unit veneer; It is said that the unit veneer of system clock can be provided is the business unit veneer;
When in said centralized cross system, carrying out the system clock switching; It is the clock index signal that detects and analyze each the said business unit veneer that receives on the said backboard by said cross unit veneer respectively; Its work clock is switched to the clock signal of a certain said business unit veneer output according to analysis result; And the work clock after it is switched is sent to each business unit veneer, controls the work clock after each business unit veneer is operated in said switching.
Further, said method also can have following characteristics:
Said cross system is centralized cross system, and said centralized cross system comprises a cross unit veneer, one or more business unit veneer, and one or more clock unit veneer; It is said that the unit veneer of system clock can be provided is the clock unit veneer;
When in said centralized cross system, carrying out the system clock switching; It is the clock index signal that detects and analyze each the said clock unit veneer that receives on the said backboard by said cross unit veneer respectively; Its work clock is switched to the clock signal of a certain said clock unit veneer output according to analysis result; And the work clock after it is switched is sent to each business unit veneer, controls the work clock after each business unit veneer is operated in said switching.
Further, said method also can have following characteristics:
The clock index signal of each the said unit veneer that receives on the said backboard of said analysis comprises: according to the clock index signal of each the said unit veneer that receives on the detected said backboard; Judge the veneer in the said unit of groove position, the clock signal that is chosen in the highest unit veneer output of the said unit veneer medium priority of groove position then is the system clock after switching.
In order to solve the problems of the technologies described above; The present invention also proposes a kind of cross system; Comprise one or more unit veneer that system clock can be provided, backboard, one or more have minute hand and hour hand connector, gather monitoring modular and handover module, wherein:
Each said unit veneer minute hand through a said connector respectively and is exported the clock index signal through the hour hand of said connector to said backboard to said backboard clock signal;
Said collection monitoring modular detects the clock index signal of each the said unit veneer that receives on the said backboard;
Said handover module is analyzed the testing result of said collection monitoring modular, system clock is switched to the clock signal of a certain said unit veneer output according to analysis result.
Further, said system also can have following characteristics:
Said cross system is distributed cross system, and said the unit veneer of system clock can be provided is the cross unit veneer; Said collection monitoring modular and said handover module all are arranged on each said cross unit veneer;
When in said distributed cross system, carrying out the system clock switching; It is the clock index signal that detects each the said cross unit veneer that receives on the said backboard by the said collection monitoring modular on each said cross unit respectively; And analyze the testing result of the said collection monitoring modular on its place cross unit by the said handover module on each said cross unit, its work clock is switched to the clock signal of a certain said cross unit veneer output according to analysis result.
Further, said system also can have following characteristics:
Said cross system is centralized cross system, and said the unit veneer of system clock can be provided is the business unit veneer; Also comprise a cross unit veneer in the said centralized cross system; Said collection monitoring modular and said handover module all are arranged on the said cross unit veneer;
When in said centralized cross system, carrying out the system clock switching; It is the clock index signal that detects each the said business unit veneer that receives on the said backboard by the said collection monitoring modular on the said cross unit veneer respectively; And the clock signal that according to testing result of its said collection monitoring modular of place on cross unit the work clock of said cross unit veneer is switched to a certain said business unit veneer output by the said handover module on the said cross unit veneer; And the work clock after said cross unit veneer switched is sent to each business unit veneer, to control the work clock after each business unit veneer is operated in said switching.
Further, said system also can have following characteristics:
Said cross system is centralized cross system, and said the unit veneer of system clock can be provided is the clock unit veneer; Also comprise a cross unit veneer and one or more business unit veneer in the said centralized cross system; Said collection monitoring modular and said handover module all are arranged on the said cross unit veneer;
In said centralized cross system; It is the clock index signal that detects and analyze each the said clock unit veneer that receives on the said backboard by the said collection monitoring modular on the said cross unit veneer respectively; And the clock signal that according to testing result of its said collection monitoring modular of place on cross unit the work clock of said cross unit veneer is switched to a certain said clock unit veneer output by the said handover module on the said cross unit veneer; And the work clock after said cross unit veneer switched is sent to each business unit veneer, to control the work clock after each business unit veneer is operated in said switching.
Further, said system also can have following characteristics:
Said handover module is when analyzing the testing result of said collection monitoring modular; Be to judge the said unit veneer that system clock can be provided in the groove position according to the testing result of said collection monitoring modular, the clock signal that is chosen in the highest unit veneer output of the said unit veneer medium priority of groove position then is as the system clock after switching.
A kind of cross system provided by the invention and the method for carrying out the clock switching thereof can effectively be guaranteed to plug veneer and can not cause service disconnection, have improved the reliability and stability of system, and are easy to realize that cost is lower.
Description of drawings
Fig. 1 is a transmission network application scene sketch map 1 in the prior art;
Fig. 2 is a transmission network application scene sketch map 2 in the prior art;
Fig. 3 is an embodiment of the invention back panel connector structural representation;
Fig. 4 is an embodiment of the invention clock-switching method schematic flow sheet;
Fig. 5 is that embodiment of the invention cross system carries out clock handoff algorithms sketch map;
Fig. 6 is that a kind of cross system of the embodiment of the invention is formed structural representation;
Fig. 7 is the signal interactive relation sketch map between the intersection veneer in the distributed cross system of the embodiment of the invention;
Fig. 8 is a business unit veneer and the signal interactive relation sketch map that intersects between the veneer in the centralized cross system of the embodiment of the invention;
Fig. 9 is business unit veneer, clock unit veneer and the signal interactive relation sketch map between the veneer of intersecting in the centralized cross system of the embodiment of the invention.
Embodiment
To combine accompanying drawing that embodiment of the present invention is further specified below.
The embodiment of the invention is to carrying out ingenious design in order to the connector that veneer and backboard are coupled together, and as shown in Figure 3, this connector has minute hand and hour hand.
Referring to Fig. 4, the figure shows the embodiment of the invention and utilize connector shown in Figure 3 to realize the method that clock switches, comprise step:
Step S401: each can provide the unit veneer of system clock respectively through a minute hand toward back plate clock signal with connector of minute hand and hour hand, and exports the clock index signal through the hour hand toward back plate of said connector;
Adopt step S401 mode transfer clock index signal and clock signal; When this can provide in the unit single-board insert-pull process of system clock; Because when extracting; Hour hand in order to the transmission index signal can be prior to extracting in order to the minute hand of transmit clock signal; System has just foreseen that this unit veneer will be pulled out in advance through detecting the clock index signal; And use the clock signal of minute hand still in connector, to transmit this moment; System has just switched on the clock source of time priority, can effectively guarantee to extract veneer like this and can not cause service disconnection; Because when inserting; In order to the transmission index signal hour hand after the meeting in inserting in order to the minute hand of transmit clock signal; System is through after detecting the clock index signal and can guaranteeing that minute hand in order to clock signal has inserted backboard; Just carrying out clock switches; Just switch after the clock signal that can effectively guarantee to insert veneer exports backboard to, guaranteed professional correct switching effectively and the pin of the clock signal avoiding the to occur handoff error that causes of firm plug not.
Step S402: detect and analyze the clock index signal of each the said unit veneer that receives on the said backboard, system clock is switched to the clock signal of a certain said unit veneer output according to analysis result.
In one embodiment, this method can be applied in the distributed cross system.Said distributed cross system comprises one or more cross unit veneer, and said the unit veneer of system clock can be provided is said cross unit veneer.When in said distributed cross system, carrying out the system clock switching; Be the clock index signal that detects and analyze each the said cross unit veneer that receives on the said backboard by each said cross unit respectively, its work clock switched to the clock signal of a certain said cross unit veneer output according to analysis result.
In another embodiment, this method can be applied in the centralized cross system.Said centralized cross system comprises a cross unit veneer, one or more business unit veneer, and one or more clock unit veneer; It is said that the unit veneer of system clock can be provided is the clock unit veneer.When in said centralized cross system, carrying out the system clock switching; It is the clock index signal that detects and analyze each the said clock unit veneer that receives on the said backboard by said cross unit veneer respectively; Its work clock is switched to the clock signal of a certain said clock unit veneer output according to analysis result; And the work clock after it is switched is sent to each business unit veneer, controls the work clock after each business unit veneer is operated in said switching.
In another embodiment, this method can be applied in the centralized cross system.Said centralized cross system comprises a cross unit veneer and one or more business unit veneer.Said the unit veneer of system clock can be provided is the business unit veneer, that is, be equivalent to the clock unit veneer among the last embodiment is integrated on the business unit veneer.When in said centralized cross system, carrying out the system clock switching; It is the clock index signal that detects and analyze each the said business unit veneer that receives on the said backboard by said cross unit veneer respectively; Its work clock is switched to the clock signal of a certain said business unit veneer output according to analysis result; And the work clock after it is switched is sent to each business unit veneer, controls the work clock after each business unit veneer is operated in said switching.
Wherein, The clock index signal of each the said unit veneer that receives on the said backboard of said analysis can comprise: according to the clock index signal of each the said unit veneer that receives on the detected said backboard; Judge the veneer in the said unit of groove position, the clock signal that is chosen in the highest unit veneer output of the said unit veneer medium priority of groove position then is the system clock after switching.Its basic principle of carrying out the clock switching is following:
Transmission network working line one total n as shown in Figure 5 is individual, adopts the clock index signal p1 of the short out pin of n respectively, p2, p3; P4 ..., pn; If priority is switched Z as a result, priority definition be p1＞p2＞...＞p (n-1)＞pn then meets following logic principle:
This handoff algorithms depends on current detected state, is actually the algorithm that a kind of priority is one by one analogized, thereby derives master-priority and time priority clock signal.
In order to realize said method; The present invention also provides a kind of cross system; As shown in Figure 6; Comprise one or more unit veneer that system clock can be provided, backboard, one or more have minute hand and hour hand the connector (not shown), gather monitoring modular and handover module, wherein:
Each said unit veneer minute hand through a said connector respectively and is exported the clock index signal through the hour hand of said connector to said backboard to said backboard clock signal;
Said collection monitoring modular detects the clock index signal of each the said unit veneer that receives on the said backboard;
Said handover module is analyzed the testing result of said collection monitoring modular, system clock is switched to the clock signal of a certain said unit veneer output according to analysis result.
Further, said cross system is distributed cross system, and said the unit veneer of system clock can be provided is the cross unit veneer; Said collection monitoring modular and said handover module all are arranged on each said cross unit veneer.Wherein, the signal interactive relation between the intersection veneer as shown in Figure 7.When in said distributed cross system, carrying out the system clock switching; It is the clock index signal that detects each the said cross unit veneer that receives on the said backboard by the said collection monitoring modular on each said cross unit respectively; And analyze the testing result of the said collection monitoring modular on its place cross unit by the said handover module on each said cross unit, its work clock is switched to the clock signal of a certain said cross unit veneer output according to analysis result.
Further, said cross system is centralized cross system, and said the unit veneer of system clock can be provided is the business unit veneer; Also comprise a cross unit veneer in the said centralized cross system; Said collection monitoring modular and said handover module all are arranged on the said cross unit veneer.Wherein, the business unit veneer with intersect between the veneer the signal interactive relation as shown in Figure 8.When in said centralized cross system, carrying out the system clock switching; It is the clock index signal that detects each the said business unit veneer that receives on the said backboard by the said collection monitoring modular on the said cross unit veneer respectively; And the clock signal that according to testing result of its said collection monitoring modular of place on cross unit the work clock of said cross unit veneer is switched to a certain said business unit veneer output by the said handover module on the said cross unit veneer; And the work clock after said cross unit veneer switched is sent to each business unit veneer, to control the work clock after each business unit veneer is operated in said switching.
Further, said cross system is centralized cross system, and said the unit veneer of system clock can be provided is the clock unit veneer; Also comprise a cross unit veneer and one or more business unit veneer in the said centralized cross system; Said collection monitoring modular and said handover module all are arranged on the said cross unit veneer.Wherein, business unit veneer, clock unit veneer and intersect between the veneer the signal interactive relation as shown in Figure 9.In said centralized cross system; It is the clock index signal that detects and analyze each the said clock unit veneer that receives on the said backboard by the said collection monitoring modular on the said cross unit veneer respectively; And the clock signal that according to testing result of its said collection monitoring modular of place on cross unit the work clock of said cross unit veneer is switched to a certain said clock unit veneer output by the said handover module on the said cross unit veneer; And the work clock after said cross unit veneer switched is sent to each business unit veneer, to control the work clock after each business unit veneer is operated in said switching.
Further; Said handover module is when analyzing the testing result of said collection monitoring modular; Be to judge the said unit veneer that system clock can be provided in the groove position according to the testing result of said collection monitoring modular, the clock signal that is chosen in the highest unit veneer output of the said unit veneer medium priority of groove position then is as the system clock after switching.
In order to further specify embodiment of the present invention, provide following application example below and further specify.
Application example 1
The cross unit veneer quantity that is up in the distributed cross system is 4, and all when the groove position, the priority of system clock is respectively each cross unit veneer: cross unit veneer 1＞cross unit veneer 2＞cross unit veneer 3＞cross unit veneer 4.The cross unit veneer 1 that each cross unit veneer detects said distributed cross system respectively is to intersecting the clock index signal that unit veneer 4 exports backboard to; Find that each cross unit veneer is all in the groove position; Then whole system will be operated on the clock that cross unit veneer 1 provides, and promptly cross unit veneer 1 all is operated on the clock that cross unit veneer 1 provides to intersecting unit veneer 4.
If cross unit veneer 1 is pulled out; Because hour hand can separate with backboard earlier; Separate with backboard behind the minute hand; Then in the clock signal of cross unit veneer 1 still when toward back plate is exported; Its clock index signal has indicated it not in the groove position; Cross unit veneer 2 to 4 will detect cross unit veneer 1 not in the groove position; Then be operated on the clock that cross unit veneer 2 provides according to the priority order whole system of making a strategic decision out again, promptly cross unit veneer 2 all is operated on the clock that cross unit veneer 2 provides to intersecting unit veneer 4.
If cross unit veneer 1 is inserted into again; Because on minute hand is understood elder generation and backboard is connected; Behind the hour hand with on backboard is connected; Then can guarantee when toward back plate is exported in the clock signal of cross unit veneer 1; Its clock index signal just indicates it in the groove position; Cross unit veneer 1 to 4 will detect cross unit veneer 1 in the groove position; Then be operated on the clock that cross unit veneer 1 provides according to the priority order whole system of making a strategic decision out again, promptly cross unit veneer 1 all is operated on the clock that cross unit veneer 1 provides to intersecting unit veneer 4.
Application example 2
The clock unit veneer quantity that is up in the centralized cross system is 4; The business unit veneer has 5; All when the groove position, the priority of system clock is respectively each clock unit veneer: clock unit veneer 1＞clock veneer 2＞clock unit veneer 3＞clock unit veneer 4.Cross unit in the centralized cross system detects clock unit veneer 1 exports backboard to clock unit veneer 4 clock index signal; Find that each clock unit veneer is all in the groove position; Then whole system will be operated on the clock that clock unit veneer 1 provides; Be cross unit, and business unit veneer 1 to business unit veneer 4 all is operated on the clock that clock unit veneer 1 provides.
If clock unit veneer 1 is pulled out; Because hour hand can separate with backboard earlier; Separate with backboard behind the minute hand; Then in the clock signal of clock unit veneer 1 still when toward back plate is exported; Its clock index signal has indicated it not in the groove position; Cross unit will detect clock unit veneer 1 not in the groove position; Then be operated on the clock that clock unit veneer 2 provides according to the priority order whole system of making a strategic decision out again; Be cross unit, and business unit veneer 1 to business unit veneer 4 all is operated on the clock that clock unit veneer 2 provides.
If clock unit veneer 1 is inserted into again; Because on minute hand is understood elder generation and backboard is connected; Behind the hour hand with on backboard is connected; Then can guarantee when toward back plate is exported in the clock signal of clock unit veneer 1; Its clock index signal just indicates it in the groove position; Cross unit will detect clock unit 1 in the groove position; Then be operated on the clock that clock unit veneer 1 provides according to the priority order whole system of making a strategic decision out again; Be cross unit, and business unit veneer 1 to business unit veneer 4 all is operated on the clock that clock unit veneer 1 provides.
Application example 3
The business unit veneer quantity that is up in the centralized cross system is 4, and all when the groove position, the priority of system clock is respectively each business unit veneer: business unit veneer 1＞business unit veneer 2＞business unit veneer 3＞business unit veneer 4.Cross unit in the centralized cross system detects business unit veneer 1 exports backboard to business unit veneer 4 clock index signal; Find that each business unit veneer is all in the groove position; Then whole system will be operated on the clock that business unit veneer 1 provides, and promptly cross unit, business unit veneer 1 to business unit veneer 4 all are operated on the clock that business unit veneer 1 provides.
If business unit veneer 1 is pulled out; Because hour hand can separate with backboard earlier; Separate with backboard behind the minute hand; Then in the clock signal of business unit veneer 1 still when toward back plate is exported; Its clock index signal has indicated it not in the groove position; Cross unit will detect business unit veneer 1 not in the groove position; Then be operated on the clock that business unit veneer 2 provides according to the priority order whole system of making a strategic decision out again, promptly cross unit, business unit veneer 2 to business unit veneer 4 all are operated on the clock that business unit veneer 2 provides.
If business unit veneer 1 is inserted into again; Because on minute hand is understood elder generation and backboard is connected; Behind the hour hand with on backboard is connected; Then can guarantee when toward back plate is exported in the clock signal of business unit veneer 1; Its clock index signal just indicates it in the groove position; Cross unit will detect business unit 1 in the groove position; Then be operated on the clock that business unit veneer 1 provides according to the priority order whole system of making a strategic decision out again, promptly cross unit, business unit veneer 1 to business unit veneer 4 all are operated on the clock that business unit veneer 1 provides.
Certainly; The present invention also can have other various embodiments; Under the situation that does not deviate from spirit of the present invention and essence thereof; Those skilled in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (10)
1. carry out the method that clock switches in a cross system, comprise step:
Each can provide the unit veneer of system clock respectively through a minute hand toward back plate clock signal with connector of minute hand and hour hand, and exports the clock index signal through the hour hand toward back plate of said connector;
Detect and analyze the clock index signal of each the said unit veneer that receives on the said backboard, system clock is switched to the clock signal of a certain said unit veneer output according to analysis result.
2. the method for claim 1 is characterized in that:
Said cross system is distributed cross system, and said distributed cross system comprises one or more cross unit veneer; It is said that the unit veneer of system clock can be provided is said cross unit veneer;
When in said distributed cross system, carrying out the system clock switching; Be the clock index signal that detects and analyze each the said cross unit veneer that receives on the said backboard by each said cross unit respectively, its work clock switched to the clock signal of a certain said cross unit veneer output according to analysis result.
3. the method for claim 1 is characterized in that:
Said cross system is centralized cross system, and said centralized cross system comprises a cross unit veneer and one or more business unit veneer; It is said that the unit veneer of system clock can be provided is the business unit veneer;
When in said centralized cross system, carrying out the system clock switching; It is the clock index signal that detects and analyze each the said business unit veneer that receives on the said backboard by said cross unit veneer respectively; Its work clock is switched to the clock signal of a certain said business unit veneer output according to analysis result; And the work clock after it is switched is sent to each business unit veneer, controls the work clock after each business unit veneer is operated in said switching.
4. the method for claim 1 is characterized in that:
Said cross system is centralized cross system, and said centralized cross system comprises a cross unit veneer, one or more business unit veneer, and one or more clock unit veneer; It is said that the unit veneer of system clock can be provided is the clock unit veneer;
When in said centralized cross system, carrying out the system clock switching; It is the clock index signal that detects and analyze each the said clock unit veneer that receives on the said backboard by said cross unit veneer respectively; Its work clock is switched to the clock signal of a certain said clock unit veneer output according to analysis result; And the work clock after it is switched is sent to each business unit veneer, controls the work clock after each business unit veneer is operated in said switching.
5. like any one described method among the claim 1-4, it is characterized in that:
The clock index signal of each the said unit veneer that receives on the said backboard of said analysis comprises: according to the clock index signal of each the said unit veneer that receives on the detected said backboard; Judge the veneer in the said unit of groove position, the clock signal that is chosen in the highest unit veneer output of the said unit veneer medium priority of groove position then is the system clock after switching.
6. a cross system is characterized in that, comprise one or more unit veneer that system clock can be provided, backboard, one or more have minute hand and hour hand connector, gather monitoring modular and handover module, wherein:
Each said unit veneer minute hand through a said connector respectively and is exported the clock index signal through the hour hand of said connector to said backboard to said backboard clock signal;
Said collection monitoring modular detects the clock index signal of each the said unit veneer that receives on the said backboard;
Said handover module is analyzed the testing result of said collection monitoring modular, system clock is switched to the clock signal of a certain said unit veneer output according to analysis result.
7. system as claimed in claim 6 is characterized in that:
Said cross system is distributed cross system, and said the unit veneer of system clock can be provided is the cross unit veneer; Said collection monitoring modular and said handover module all are arranged on each said cross unit veneer;
When in said distributed cross system, carrying out the system clock switching; It is the clock index signal that detects each the said cross unit veneer that receives on the said backboard by the said collection monitoring modular on each said cross unit respectively; And analyze the testing result of the said collection monitoring modular on its place cross unit by the said handover module on each said cross unit, its work clock is switched to the clock signal of a certain said cross unit veneer output according to analysis result.
8. system as claimed in claim 6 is characterized in that:
Said cross system is centralized cross system, and said the unit veneer of system clock can be provided is the business unit veneer; Also comprise a cross unit veneer in the said centralized cross system; Said collection monitoring modular and said handover module all are arranged on the said cross unit veneer;
When in said centralized cross system, carrying out the system clock switching; It is the clock index signal that detects each the said business unit veneer that receives on the said backboard by the said collection monitoring modular on the said cross unit veneer respectively; And the clock signal that according to testing result of its said collection monitoring modular of place on cross unit the work clock of said cross unit veneer is switched to a certain said business unit veneer output by the said handover module on the said cross unit veneer; And the work clock after said cross unit veneer switched is sent to each business unit veneer, to control the work clock after each business unit veneer is operated in said switching.
9. system as claimed in claim 6 is characterized in that:
Said cross system is centralized cross system, and said the unit veneer of system clock can be provided is the clock unit veneer; Also comprise a cross unit veneer and one or more business unit veneer in the said centralized cross system; Said collection monitoring modular and said handover module all are arranged on the said cross unit veneer;
In said centralized cross system; It is the clock index signal that detects and analyze each the said clock unit veneer that receives on the said backboard by the said collection monitoring modular on the said cross unit veneer respectively; And the clock signal that according to testing result of its said collection monitoring modular of place on cross unit the work clock of said cross unit veneer is switched to a certain said clock unit veneer output by the said handover module on the said cross unit veneer; And the work clock after said cross unit veneer switched is sent to each business unit veneer, to control the work clock after each business unit veneer is operated in said switching.
10. like any one described system among the claim 6-9, it is characterized in that:
Said handover module is when analyzing the testing result of said collection monitoring modular; Be to judge the said unit veneer that system clock can be provided in the groove position according to the testing result of said collection monitoring modular, the clock signal that is chosen in the highest unit veneer output of the said unit veneer medium priority of groove position then is as the system clock after switching.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102454710A CN102347853A (en) | 2010-07-30 | 2010-07-30 | Cross system and clock switching method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102454710A CN102347853A (en) | 2010-07-30 | 2010-07-30 | Cross system and clock switching method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107229305A (en) * | 2017-05-31 | 2017-10-03 | 成都欧飞凌通讯技术有限公司 | A kind of method of system clock lossless switching |
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| CN1725752A (en) * | 2005-01-25 | 2006-01-25 | 杭州华为三康技术有限公司 | Method for hot-line insertion and extraction of network interface plate |
| CN101420282A (en) * | 2008-10-20 | 2009-04-29 | 中兴通讯股份有限公司 | Method and device for selecting time clock unit by service board |
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| CN1510845A (en) * | 2002-12-26 | 2004-07-07 | 华为技术有限公司 | Hot backup method for switching primary and secondary protection |
| CN1725752A (en) * | 2005-01-25 | 2006-01-25 | 杭州华为三康技术有限公司 | Method for hot-line insertion and extraction of network interface plate |
| CN101420282A (en) * | 2008-10-20 | 2009-04-29 | 中兴通讯股份有限公司 | Method and device for selecting time clock unit by service board |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107229305A (en) * | 2017-05-31 | 2017-10-03 | 成都欧飞凌通讯技术有限公司 | A kind of method of system clock lossless switching |
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Application publication date: 20120208 |