CN102117258B - Hot plug control method for single board and communication equipment - Google Patents
Hot plug control method for single board and communication equipment Download PDFInfo
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- CN102117258B CN102117258B CN 200910238871 CN200910238871A CN102117258B CN 102117258 B CN102117258 B CN 102117258B CN 200910238871 CN200910238871 CN 200910238871 CN 200910238871 A CN200910238871 A CN 200910238871A CN 102117258 B CN102117258 B CN 102117258B
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Abstract
The embodiment of the invention discloses a hot plug control method for a single board and communication equipment. At least two micro switches are arranged on the single board. The hot plug control method for the single board comprises the following steps of: when a first micro switch is detected to be switched off, detecting whether a second micro switch is switched off in a preset time or not; and if the second micro switch is detected not to be switched off in the preset time, not powering the single board off. In the embodiment of the invention, the at least two micro switches are arranged on the single board, the detection of whether the second micro switch is switched off in the preset time or not is continued after the first micro switch is detected to be switched off, and if the second micro switch is detected not to be switched off in the preset time, power-off is not performed, thereby avoiding the condition of abnormal power-off, caused by a failure of one switch, of the single board.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of hot plug control method for single board and communication facilities.
Background technology
At communication technical field, especially in the telecom communication, a lot of equipment all adopt ATCA (AdvancedTelecom Computing Architecture, Advanced telecom computing architecture) or MicroTCA (MicroTelecom Computing Architecture, micro telecommunication computing architecture) standard design.In ATCA or MicroTCA system, all can use AMC (Advanced Mezzanine Card, advanced interlayer card) veneer.Referring to Fig. 1, be the application synoptic diagram of AMC in the ATCA system, a plurality of AMC are inserted into first an ATCA veneer, and then the ATCA veneer is connected with backboard by connector.Referring to Fig. 2, be the application synoptic diagram of AMC in the MicroTCA system, each AMC does not need elder generation to link to each other with a veneer, but is connected with System Backplane by the machine frame slot of MicroTCA.
In ATCA or MicroTCA application, the AMC that uses follows same standard, referring to Fig. 3, be AMC veneer synoptic diagram, because the size of AMC is less, so standard has only defined a spanner, be used for external interface in order to reserve enough spaces, this spanner adopts the push-and-pull mode of operation and drives a microswitch simultaneously, and three positions are arranged in the push-and-pull process, has respectively different implications and function.
After spanner all pushes in, be called the Locked state, microswitch is depressed, and veneer can power on; After spanner is drawn out a segment distance, be called Hot swap state, microswitch is upspring, and veneer can following electricity; After spanner is all pulled out, be called the Unlocked state, this moment, veneer was in power-down state, can continue firmly veneer to be extracted slot.
This shows that the diverse location of spanner has determined the state of microswitch, and the state of microswitch directly affects the powering on of AMC, power-down state.
The inventor finds that there is following shortcoming at least in prior art in realizing process of the present invention:
In communication facilities, the reliability of microswitch is not very high, in the single-board insert-pull process under the formed physical shock or since self aging meeting lost efficacy gradually, even also can become flexible so that AMC spanner in situation about powering on is in Locked position microswitch, software takes for spanner and is in Hot swap state, the result causes the unusual lower electricity of AMC, has reduced the reliability of power supply control.
Summary of the invention
The embodiment of the invention provides a kind of hot plug control method for single board and device, is used for improving the reliability of veneer power supply control.
Wherein, the embodiment of the invention provides a kind of hot plug control method for single board, comprises at least two microswitches on the veneer of communication system, comprises the steps:
After detecting the disconnection of the first microswitch, detect the second microswitch and whether disconnect in the given time;
Do not disconnect in the given time if detect described the second microswitch, then described veneer is not carried out lower electricity.
The embodiment of the invention also provides a kind of communication facilities, comprises the veneer of communication system, and described veneer comprises two microswitches at least, also comprises:
Whether detecting unit is used for after detecting the disconnection of the first microswitch, detect the second microswitch and disconnect in the given time;
The power-on and power-off unit is used for not disconnecting in the given time when described detecting unit detects described the second microswitch, described veneer is not carried out lower electricity.
Have following advantage in the technique scheme:
By at veneer at least two microswitches being set, after detecting the first microswitch and breaking down, continue to detect and judge whether the second microswitch disconnects in the given time, if do not have, then do not carry out lower electricity, thereby avoided because switch breaks down and cause veneer unusually to descend the situation of electricity to occur, thereby improved the reliability of power supply control.
Description of drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the invention, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is that advanced interlayer card (AMC) is used for the synoptic diagram on the ATCA veneer;
Fig. 2 is the synoptic diagram that advanced interlayer card (AMC) is used for the MicroTCA system;
Fig. 3 is the synoptic diagram of the microswitch driving mechanism of advanced interlayer card (AMC);
Fig. 4 is embodiment of the invention method flow synoptic diagram;
The power-on and power-off state transition diagram of the advanced interlayer card that Fig. 5 provides for the embodiment of the invention (AMC);
The communication facilities synoptic diagram that Fig. 6 provides for the embodiment of the invention.
Embodiment
For making purpose of the present invention, technical scheme and advantage clearer, below will by specific embodiment and relevant drawings, the present invention be described in further detail.
Embodiment one
The embodiment of the invention provides a kind of hot plug control method for single board, is used for improving the reliability of system single board power-on and power-off.
The embodiment of the invention provides a kind of hot plug control method for single board, is applied to communication system, comprises at least two microswitches on the veneer of described communication system, and referring to Fig. 4, described hot plug control method for single board comprises the steps:
S101, after detecting the first microswitch and disconnecting, detect the second microswitch and whether disconnect in the given time;
Do not disconnect in the given time if S102 detects described the second microswitch, then described veneer is not carried out lower electricity.
In the embodiment of the invention, disconnect in the given time if detect described the second microswitch, then described veneer is carried out lower electricity.
Disconnect in the given time when detecting described the second microswitch, and when continuing to detect described the second microswitch state and being off-state, judge whether electricity under the described veneer if so, is carried out lower electricity to described veneer by lower electric trigger pip.
Lower electric trigger pip triggers by external circuit, for example, can send by special-purpose lower electric trigger button, perhaps also can use existing reset button to send.By after the lower electric trigger pip described veneer being carried out lower electricity, can be so that lower electric process be safer, because when the second microswitch does not disconnect in the given time, continue to detect when finding to disconnect, and do not know that the second microswitch is owing to fault disconnects, or the spanner of opening veneer owing to the user disconnects; If owing to fault disconnects, then can not carry out lower electricity to veneer, and if the user uses the spanner of driving veneer, then veneer is carried out lower electricity, therefore, need to descend electricity in order to be confirmed to be user's reason, the embodiment of the invention is come user behavior is confirmed by a lower electric trigger pip.
The flow process that powers in the embodiment of the invention does not need a plurality of microswitches all just to power on after the closure, only needs just to power on after one of them closure, has improved the reliability that powers on.
The schedule time in the embodiment of the invention is set according to described microswitch position and characteristic, because the microswitch position is different with characteristic, after the time that they disconnect after spanner is opened also has and has first, but as long as microswitch is normal, this priority time is certainly existing a upper limit, generally can not surpass 100ms.When having more than two microswitch, the situation in the time of can be with reference to two microswitches designs, and does not repeat them here.
Whether the embodiment of the invention arranges at least two microswitches by the veneer in communication system, after detecting the disconnection of the first microswitch, detect the second microswitch and disconnect in the given time; If detecting described the second microswitch does not disconnect in the given time, then described veneer is not carried out lower electricity, after like this can a microswitch breaks down therein, continue to detect and judge whether the second microswitch disconnects, if do not have, then do not carry out lower electricity, thereby avoided because switch breaks down and cause veneer unusually to descend the situation of electricity to occur.
And can to distinguish be the disconnection that normal plug causes by detecting in the given time, or because the disconnection that fault causes, thereby better electricity under the veneer is controlled.
In addition, whether the embodiment of the invention also detects the second microswitch and disconnects after the schedule time, when the second microswitch disconnects after the schedule time and lower electric trigger pip is arranged, again veneer is carried out lower electricity, do not cause carrying out unusually descending the situation of electricity to occur to veneer thereby can not disconnect because of breaking down owing to the second microswitch yet, increased the reliability of electricity under the veneer.
Embodiment two
The embodiment of the invention provides a kind of hot plug control method for single board, is used for improving communication system veneer power-on and power-off reliability.
The embodiment of the invention is take communication system as the MicroTCA system, and system single board is that advanced interlayer card (AMC) describes for example.Embodiment of the invention advanced interlayer card comprises at least two microswitches, take two microswitches as example, these two microswitches can be elements independent of each other, it also can be the element that is packaged together, when perhaps having more than two, can be combination in any independent or encapsulation, the present invention do any restriction to this yet.
A kind of hot plug control method for single board of the embodiment of the invention comprises the steps:
After detecting the disconnection of the first microswitch, detect the second microswitch and whether disconnect in the given time;
Do not disconnect in the given time if detect described the second microswitch, then described veneer is not carried out lower electricity.
In addition, disconnect in the given time if detect described the second microswitch, then described veneer is carried out lower electricity;
Disconnect in the given time when detecting described the second microswitch, and when continuing to detect described the second microswitch state and being off-state, judge whether electricity under the described veneer if so, is carried out lower electricity to described veneer by lower electric trigger pip.
The microswitch of advanced interlayer card has two states: disconnect and closure.When the spanner of advanced interlayer card was closed, at least two microswitches all were depressed; When the spanner of advanced interlayer card was opened, at least two microswitches were all released.
When advanced interlayer card was initially in power-down state, as long as have one to be closed at least two microswitches, advanced interlayer card just can power on, and did not need all microswitches all closed.Relax powering on of advanced interlayer card and require to help to reduce failed part, can't bring adverse effect to business.
Because correspondence disconnection, the closure state of microswitch when the spanner of advanced interlayer card was in Locked, Hot Swap, Unlocked position, and these states affect the powering on of advanced interlayer card, lower electricity, therefore after advanced interlayer card powers on, must continue detect the state of microswitch, as the basis for estimation that whether starts lower electric current journey.
At least two microswitches are because may be far and near different apart from the spanner of advanced interlayer card, and the mechanical property of self also can there are differences, therefore after the time that they disconnect after spanner is opened also has and has first, but as long as microswitch is normal, this priority time is certainly existing a upper limit, generally can not surpass 100ms.Because at least two microswitches are separate, they break down and moment of disconnecting is completely random, the possibility that successively breaks down in above-mentioned time upper limit is minimum, just can distinguish microswitch because of the normal disconnection of opening spanner with because fault disconnects according to these characteristics, if disconnect in the time in the upper limit, then can think normal disconnection, otherwise, disconnect for breaking down, and can process accordingly according to both of these case, thereby avoid the unusual lower electricity of advanced interlayer card.
The first microswitch described in the embodiment of the invention, the second microswitch do not refer to certain specific microswitch, but the order that successively disconnects according at least two microswitches defines.Take the situation of two microswitches as example, if one of them microswitch disconnects first, it is exactly the first microswitch so, and another microswitch then is the second microswitch.
The power-on and power-off flow process of the advanced interlayer card that the embodiment of the invention is corresponding represents the state machine that a power-on and power-off state transforms as shown in Figure 5, and the below is described each state conversion process respectively:
Referring to Fig. 5, S0 represents that advanced interlayer card is in power-up state, when advanced interlayer card from the power-down state to the power-up state in (when advanced interlayer card is inserted into slot) change procedure, if when having at least one microswitch closed, then enter into the S0 state;
S1 represents to start timer and continues the second microswitch state that detects;
After the first microswitch is detected disconnection, then enter S 1 state, at this moment, system carries out timing by starting a timer, as the upper limit time can being made as 100ms, and continues the second microswitch state that detects;
S4 represents to go down electric current journey state;
Also disconnected if detect the second microswitch before the upper limit time arrives, illustrated that microswitch is normal disconnection, advanced interlayer card should descend electricity, so enter the S4 state, this moment, advanced interlayer card entered lower electric current journey until normal lower electricity.This time electric current journey specifies in the MicroTCA standard, repeats no more here.
Need to prove that when advanced interlayer card was initially power-down state, state machine was also at the S4 state.When advanced interlayer card was initially in power-up state, state machine was at the S0 state.
S2, continuation detect the second microswitch state;
If the second microswitch does not also disconnect when the upper limit time arrives, illustrate that the first microswitch disconnects because fault has occured, therefore state machine enters the S2 state, still detect the state of the second microswitch, if its state does not change, state machine just rests on the S2 state always;
S3, the lower electric trigger pip of detection;
Whether also disconnected if detect the second microswitch, then entered the S3 state, detecting has lower electric trigger pip; Wherein, lower electric trigger pip can obtain by detecting reset button or certain trigger button.
Advanced interlayer corresponding to the embodiment of the invention is stuck in a reset button is provided on the panel, it has two kinds of functions: when advanced interlayer card is in power-up state and state machine and is in state beyond the S3 (namely have at least a microswitch not break down or advanced interlayer card is in power-down state), pressing reset button can allow advanced interlayer card enter reset mode, otherwise (be that fault has occured at least one microswitch, and all microswitches have all disconnected) press the effect that reset button only plays a triggering, can allow state machine enter the S4 state, make normally lower electricity of advanced interlayer card, do not finish the function that resets.
Above-mentioned Trigger Function can also provide at the panel of advanced interlayer card the trigger button of a special use except realizing with reset button, make state machine enter the S4 state from the S3 state, finishes lower electric current journey.
The above-mentioned Trigger Function that provides with reset button or dedicated trigger button is the state variation of utilizing them, for example becomes disconnection from closure, perhaps becomes closure from disconnection, comes the driving condition machine to enter into the S4 state from the S3 state.
Need to prove that when the state transition condition of state machine wouldn't satisfy, state machine can rest on current state always and state transition can not occur.
Because in the situation that the first microswitch breaks down, if the second microswitch disconnects behind timer expiry, can't determine to disconnect owing to fault has also occured the second microswitch, or the spanner of having opened advanced interlayer card owing to the user disconnects, electricity can not be descended for the former advanced interlayer card, then electricity should be descended for latter's advanced interlayer card.So, in order to be confirmed whether to descend electricity, necessarily require the user that a trigger pip is provided, be to realize by reset button or special-purpose trigger button in the present embodiment.
Whether the embodiment of the invention arranges at least two microswitches by the veneer in communication system, after detecting the disconnection of the first microswitch, detect the second microswitch and disconnect in the given time; If detecting described the second microswitch does not disconnect in the given time, then described veneer is not carried out lower electricity, after like this can a microswitch breaks down therein, continue to detect and judge whether the second microswitch disconnects, if do not have, then do not carry out lower electricity, thereby avoided because switch breaks down and cause veneer unusually to descend the situation of electricity to occur.
And can to distinguish be the disconnection that normal plug causes by detecting in the given time, or because the disconnection that fault causes, thereby better electricity under the veneer is controlled.
In addition, whether the embodiment of the invention also detects the second microswitch and disconnects after the schedule time, when the second microswitch disconnects after the schedule time and lower electric trigger pip is arranged, again veneer is carried out lower electricity, thereby can not cause carrying out unusually descending the situation of electricity to occur to veneer because of the rear disconnection of breaking down owing to the second microswitch, increase the reliability of electricity under the veneer.
Embodiment three
Apparatus of the present invention embodiment provides a kind of communication facilities, and this communication facilities can be ATCA device or MicroTCA equipment; Described communication facilities comprises system single board 301, it for example is the AMC veneer, other veneers that perhaps have similar structures with the AMC veneer, above-mentioned veneer comprises two microswitches at least, and take two microswitches as example, these two microswitches can be elements independent of each other, it also can be the element that is packaged together, when perhaps having more than two, can be combination in any independent or encapsulation, the present invention do any restriction to this yet.
The embodiment of the invention also comprises:
Whether detecting unit 302 is used for after detecting the disconnection of the first microswitch, detect the second microswitch and disconnect in the given time;
Power-on and power-off unit 303 is used for not disconnecting in the given time when described detecting unit 302 detects described the second microswitch, described veneer is not carried out lower electricity;
Lower electric trigger element 304 is for generation of lower electric trigger pip;
Described power-on and power-off unit 303 is used for: do not disconnect in the given time when described detecting unit 302 detects described the second microswitch, continuing to detect described the second microswitch state is off-state, and when detecting the described lower electric trigger pip of described lower electric trigger element 304 generations, described veneer is carried out lower electricity;
Described power-on and power-off unit 303 also is used for when two microswitches successively disconnect in the given time, electricity under the control veneer.
The schedule time in the embodiment of the invention is set according to described microswitch position and characteristic, and its value is not less than the time that a plurality of microswitches disconnect in succession when normally opening spanner, is generally less than 100ms.
Concrete, above-mentioned lower electric trigger element 304 can be realized by reset button or special-purpose lower electric trigger button; When using described reset button to be described lower electric trigger element, fault has occured at least one microswitch in described reset button, and all microswitches produce lower electric trigger pip when all disconnecting; Otherwise described reset button produces reset signal.
Because reset button both produced reset signal, produce again lower electric trigger pip, therefore, when receiving the signal from reset button in the power-on and power-off unit, need to determine to reset or carry out lower electricity in conjunction with the state of current state machine; When state machine is in S3, i.e. when at least one switch fault, and whole switch disconnects, if having the signal from reset button this moment, then think lower electric trigger pip; Otherwise, when the state that is in beyond the S3, think that then it is reset signal, be used for veneer is resetted.
By utilizing reset button to produce lower electric trigger pip, can save special-purpose trigger button, simplify the design of advanced interlayer card.
Current flow path specifically can represent referring to the state machine among Fig. 5 about power-on and power-off unit in the embodiment of the invention carried out, and altogether comprised S0, S1, S2, S3, five states of S4, wherein:
S0 represents power-up state; After the first microswitch disconnects, enter the S1 state, namely start timer and continue the second microswitch state that detects; If before regularly finishing, the second microswitch disconnects, and then enters the S4 state, namely goes down the electric current journey; Otherwise when when regularly finishing, the second microswitch does not still disconnect, and then carries out the S2 state, continues to detect the state of the second microswitch; Also disconnect if subsequent detection obtains the second microswitch, then carry out the S3 state, detect lower electric trigger pip, if lower electric trigger pip is arranged, then carry out the S4 state and enter lower electricity.If when entering into above-mentioned certain state, do not satisfy entering another status condition, then can rest on current state always.
Above-mentioned power-on and power-off unit only need to detect one of them closure and namely veneer be powered on, thereby improve the reliability that powers on when system is powered on.
Each unit in the embodiment of the invention can be realized by various hardware handles unit, as adopt general processor or application specific processor, perhaps programmable logic device (PLD) (such as CPLD, FPGA etc.), perhaps other hardware circuits with similar functions are realized, and above-mentioned each unit can realize that with the different hardware processing unit perhaps several unit use same hardware handles unit to realize.
Whether the embodiment of the invention arranges at least two microswitches by the veneer at communication facilities, after detecting the disconnection of the first microswitch, detect the second microswitch and disconnect in the given time; If detecting described the second microswitch does not disconnect in the given time, then described veneer is not carried out lower electricity, after like this can a microswitch breaks down therein, continue to detect and judge whether the second microswitch disconnects, if do not have, then do not carry out lower electricity, thereby avoided because switch breaks down and cause veneer unusually to descend the situation of electricity to occur.
And can to distinguish be the disconnection that normal plug causes by detecting in the given time, or because the disconnection that fault causes, thereby better electricity under the veneer is controlled.
In addition, whether the embodiment of the invention also detects the second microswitch and disconnects after the schedule time, when the second microswitch disconnects after the schedule time and lower electric trigger pip is arranged, again veneer is carried out lower electricity, thereby can not cause carrying out unusually descending the situation of electricity to occur to veneer because of the rear disconnection of breaking down owing to the second microswitch, increase the reliability of electricity under the veneer.
One of ordinary skill in the art will appreciate that all or part of flow process that realizes in above-described embodiment method, to come the relevant hardware of instruction to finish by computer program, described program can be stored in the storage medium of an embodied on computer readable, this program can comprise the flow process such as the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-OnlyMemory, ROM) or store-memory body (Random Access Memory, RAM) etc. at random.
Above-listed preferred embodiment; the purpose, technical solutions and advantages of the present invention are further described; institute is understood that; the above only is preferred embodiment of the present invention; not in order to limit the present invention; within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. a hot plug control method for single board is characterized in that, comprises spanner at the veneer of communication system, and at least two microswitches of described spanner control comprise the steps:
After detecting the disconnection of the first microswitch, detect the second microswitch and whether disconnect in the given time;
Do not disconnect in the given time if detect described the second microswitch, then described veneer is not carried out lower electricity;
After surpassing the described schedule time, continue to detect described the second microswitch, if described the second microswitch disconnects, detect whether lower electric trigger pip is arranged, if there is not described lower electric trigger pip, then described veneer is not carried out lower electricity.
2. hot plug control method for single board as claimed in claim 1 is characterized in that:
Disconnect in the given time if detect described the second microswitch, then described veneer is carried out lower electricity.
3. hot plug control method for single board as claimed in claim 1 is characterized in that:
When having a microswitch closed, described veneer is powered on.
4. hot plug control method for single board as claimed in claim 1 is characterized in that:
The described schedule time is set according to described microswitch position and characteristic.
5. a communication facilities is characterized in that, comprises the veneer of communication system, and described veneer comprises spanner, and at least two microswitches of described spanner control also comprise:
Whether detecting unit is used for after detecting the disconnection of the first microswitch, detect the second microswitch and disconnect in the given time;
The power-on and power-off unit is used for not disconnecting in the given time when described detecting unit detects described the second microswitch, described veneer is not carried out lower electricity;
After described power-on and power-off unit also is used for surpassing the described schedule time, continue to detect described the second microswitch, whether if described the second microswitch disconnects, detecting has lower electric trigger pip, if do not have described lower electric trigger pip, then described veneer do not carried out lower electricity.
6. communication facilities as claimed in claim 5 is characterized in that described lower electric trigger element is:
Reset button, perhaps special-purpose lower electric trigger button.
7. communication facilities as claimed in claim 6 is characterized in that:
When using described reset button to be described lower electric trigger element, described reset button disconnects electric trigger pip under rear the generation in described the first microswitch fault and described the second microswitch; Otherwise described reset button produces reset signal.
8. communication facilities as claimed in claim 5, described communication facilities is Advanced telecom computing architecture ATCA device or micro telecommunication computing architecture MicroTCA equipment, the veneer of described communication system is advanced interlayer card AMC.
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| CN 200910238871 CN102117258B (en) | 2009-12-31 | 2009-12-31 | Hot plug control method for single board and communication equipment |
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| CN 200910238871 CN102117258B (en) | 2009-12-31 | 2009-12-31 | Hot plug control method for single board and communication equipment |
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| CN102117258B true CN102117258B (en) | 2013-01-23 |
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| CN104252609B (en) * | 2013-06-28 | 2017-09-29 | 联想(北京)有限公司 | Hot plug guard method and device |
| CN108616779B (en) * | 2016-12-13 | 2022-08-12 | 中兴通讯股份有限公司 | Operating device for plugging and unplugging single board |
| CN108932045B (en) * | 2017-05-26 | 2021-03-19 | 大唐移动通信设备有限公司 | Electric control method and system of single board |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1920748A (en) * | 2006-09-04 | 2007-02-28 | 华为技术有限公司 | Method and device for upper and lower electric treatment of veneer |
| CN101515157A (en) * | 2008-02-19 | 2009-08-26 | 尚新民 | Intelligent power supplier |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1920748A (en) * | 2006-09-04 | 2007-02-28 | 华为技术有限公司 | Method and device for upper and lower electric treatment of veneer |
| CN101515157A (en) * | 2008-02-19 | 2009-08-26 | 尚新民 | Intelligent power supplier |
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