CN101262325A - Switching device for monitoring dual hosts at translation station - Google Patents
Switching device for monitoring dual hosts at translation station Download PDFInfo
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- CN101262325A CN101262325A CNA2008100667626A CN200810066762A CN101262325A CN 101262325 A CN101262325 A CN 101262325A CN A2008100667626 A CNA2008100667626 A CN A2008100667626A CN 200810066762 A CN200810066762 A CN 200810066762A CN 101262325 A CN101262325 A CN 101262325A
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Abstract
The invention discloses a switching device of a monitoring dual-computer of a transformer substation, aiming at solving the technical problems of data loss when in a dual-computer switching of a main sever and a standby sever. The device of the invention is provided with the main sever and the standby server; the network drive module of the main sever and the standby sever is connected with a real-time library module thereof by a message resolution module and is connected with a straight connecting device; the main sever and the standby sever are respectively provided with a information distribution module which is connected with the real-time library module; the information distribution module of the main sever and the information distribution module of the standby sever are connected. Compared with the prior art, the information distribution module is provided with a confirmation mechanism which caches information from devices before distribution, sends confirmation messages to the sever when the sever receives new information from offside and deletes corresponding cached information when the offside server receives confirmation messages.
Description
Technical field
The present invention relates to the watch-dog of a kind of watch-dog of electric power system, particularly a kind of transformer station.
Technical background
In the active and standby monitoring mode of transformer station's two server, it is a very important problem that primary, spare server two-shipper switches.Under the usual manner, if receive under Host Status that information that a lot of field apparatuss send does not up also have enough time to show and the situation of depositing under just switch to standby host, so will drop-out, and all may cause losing of information at several levels of server.As shown in Figure 1, the primary, spare server of prior art adopts the network-driven module to be connected with real-time library module through the packet parsing module respectively, the structure that the network-driven module of primary, spare server is connected with direct-connected device, following analytical information handle several modules of process, and analyze in each module may drop-out link.
1) network-driven module has only main frame just to set up and being connected of direct-connected device or front end processor by present conventional method.Receive the message of direct-connected device when main frame and still be untreated when just switching to standby server that the information that is kept in the network interface card buffering area will be lost.
For direct-connected device, adopt 103 messages, because server analytic message not as yet confirms can not for direct-connected device, when being connected with standby server, it understand the retransmission of information message, so can drop-out at this level.
General 104 stipulations that adopt of front end processor, the out of Memory except that protection information does not all have retransmission mechanism as remote signalling displacement, information journal, if switch at this moment, will lose in remote signalling displacement and the information journal that finishes of being untreated of this module.
2) packet parsing module, the message that packet parsing module parses network-driven module is received, with information stores in its database and send to real-time library module (real-time data base).The packet parsing module sends confirmation message must could for after information sends to real-time data base direct-connected device, the message handled of not having enough time after the switching like this, and direct-connected device can be retransmitted to standby server.
3) real-time data base, the Data Source in the real-time data base are the message queue data that the packet parsing module produces, and under the existing processing mode, when server switches to standby host by main frame, do not have canned data to lose.
As can be seen, under the prior art tupe, obliterated data was inevitable when two-shipper switched from above analysis.Its underlying cause is, in case main frame switches to standby host, the work of each module all is absorbed in dead state.
Summary of the invention
The switching device that the purpose of this invention is to provide a kind of monitoring dual hosts at translation station, the technical problem that solve are that primary, spare server two-shipper is avoided obliterated data when switching.
The present invention is by the following technical solutions: a kind of switching device of monitoring dual hosts at translation station, be provided with master server, standby server, the network-driven module of master server is connected with its real-time library module through its packet parsing module, the network-driven module of standby server is connected with its real-time library module through its packet parsing module, master server is connected with direct-connected device with the network-driven module of standby server, described master server and standby server are respectively arranged with the distribution of information module, the distribution of information module is connected with real-time library module, and the distribution of information module of master server is connected with the distribution of information module of standby server.
The distribution of information module of master server of the present invention is provided with data transmit queue device and confirms device, and the distribution of information module of standby server is provided with data transmit queue device and confirms device.
The message that the network-driven module of master server of the present invention will be received from jockey is stored in real-time library module after the packet parsing module parses.
Standby server of the present invention is not accepted the message of jockey.
When master server of the present invention and standby server switch, after receiving the network-driven module, the real-time library module of master server also do not deposit the not stored information of real-time library module in, through the data transmit queue device of master server, the affirmation device of standby server, send into the real-time trousers module stores of standby server.
After the real-time trousers module of standby server of the present invention is received not stored information, the affirmation device of standby server sends confirmation to the data transmit queue device of master server, after the data transmit queue device of master server is received confirmation, the not stored information in the data transmit queue device of deletion master server.
After master server of the present invention and standby server switched, former master server switched to standby server, and former standby server switches to master server.
The message that the network-driven module of the master server after the present invention is switched will be received from jockey is stored in real-time library module after the packet parsing module parses.
Standby server after the switching of the present invention is not accepted the message of jockey.
The present invention compared with prior art, start with and deal with problems from relating to distribution of information module and real-time data base, set up affirmation mechanism in the distribution of information module, promptly to information (non-information) from the offside server from device, first buffer memory before distribution, no matter and this machine is main clothes or obeys fully and all it is distributed, just be equipped with clothes and only be distributed to main clothes, main clothes also will be distributed to each client except being distributed to be equipped with the clothes, when server is received the offside fresh information, send confirmation message to it, when the offside server is received confirmation message, deletion corresponding cache information.
Description of drawings
Fig. 1 is the modular structure figure of prior art.
Fig. 2 is the modular structure figure of the embodiment of the invention.
Fig. 3 is the distribution of information modular structure figure of the embodiment of the invention.
Embodiment
Below in conjunction with drawings and Examples the present invention is described in further detail.As shown in Figure 2, the switching device of monitoring dual hosts at translation station of the present invention, be provided with master server, standby server, the network-driven module of master server is connected with the distribution of information module through packet parsing module, real-time library module, the network-driven module of standby server is connected with the distribution of information module through packet parsing module, real-time library module, master server is connected with the distribution of information module of standby server, and master server is connected with direct-connected device respectively with the network-driven module of standby server.The message that the network-driven module of master server will be received from jockey is stored in real-time library module after the packet parsing module parses.Standby server is not accepted the message of jockey.
As shown in Figure 3, the distribution of information module of master server and standby server is provided with data transmit queue device and confirms device, the data transmit queue device of master server is connected with the affirmation device of standby server, and the data transmit queue device of standby server is connected with the affirmation device of master server.When master server and standby server switch, after receiving the network-driven module, the real-time library module of master server also do not deposit the not stored information of real-time library module in, through the data transmit queue device of master server, the affirmation device of standby server, send into the real-time trousers module stores of standby server.After the real-time trousers module of standby server is received not stored information, the affirmation device of standby server sends confirmation to the data transmit queue device of master server, after the data transmit queue device of master server is received confirmation, the not stored information in the data transmit queue device of deletion master server.
After master server and standby server switched, former master server switched to standby server, and former standby server switches to master server.The message that the network-driven module of the master server after the switching will be received from jockey is stored in real-time library module after the packet parsing module parses, the standby server after the switching is not accepted the message of jockey.
The switching device of monitoring dual hosts at translation station of the present invention confirms that device is provided with cache information interface and deletion information interface.Library module has the function of storage and data information in real time.
Switch with primary, spare server in the snowslide process of the test below information process is described: the snowslide test begins before switching, just finishes after switching.
One, switch preceding processing:
1. the network-driven module of master server begins to receive message from direct-connected device; Standby server not with direct-connected device communication.
2. the message received of master server network-driven module is in the packet parsing module parses.
3. the real-time library module of master server reads the packet parsing module and produce to resolve information such as the protection incident finished, self check, and the AddEvent () that calls among the actual management submodule CEventMng of real-time library module adds event interface.
4. the distribution of information module of master server will protect information caches such as incident, self check in data transmit queue device.
5. the real-time library module of master server is preserved information such as protection incident, self check to being installed in same the physical database on the machine.
6. the data transmit queue device of master server sends information such as protection incident, self check to the affirmation device of standby server; standby server distribution of information module is at first added real-time library module to information such as the protection incident received, self checks, resolves the message that the Master Server Info distribution module is distributed to the standby host role.
7. the affirmation device of standby server sends confirmation message to master server data transmit queue device, and master server data transmit queue device is deleted information such as protection incident, self check after receiving the standby server confirmation message.
Two, the processing in the switching:
1. master server network-driven module is received the primary, spare server switching command of man-machine interface HMI.
2. master server switches to standby server, master server before switching is closed the network-driven related linear program, empty the message queue in the data transmit queue device, close web socket Socket with former standby server and HMI, then start standby server network-driven related linear program, attempt with switching after master server set up network and be connected to get in touch.
3. standby server switches to master server after several seconds, the network-driven module of the master server after the switching is closed related linear program, empty the message queue in the buffer storage of standby server distribution of information module, close and former standby server web socket Socket, then start the master server related linear program after switching, the master server after the switching begins by the standby server connection request after the network intercepting switching.
4. information such as the protection incident that the packet parsing module of the master server before switching is received from direct-connected device, self check continue to preserve; add real-time library module to; but do not distribute to standby server; be sent to current Master Server Info distribution module by the distribution of information module; until the affirmation of receiving current Master Server Info distribution module; if retransmitting 10 times, the distribution of information module do not have response; master server before switching will protect information such as incident, self check to be saved in the difference table of physical database, and the distribution of information module is removed corresponding information simultaneously.
5. information such as the synchronous protection incident of the master server before the lasting processing of the Master Server Info distribution module after switching is next adaptive switched, self check, and the transmission of the Master Server Info distribution module before switching confirmation message.
6. the Master Server Info distribution module after switching did not receive information such as the protection self check, incident of the Master Server Info distribution module before adaptive switched in continuous 3 seconds, and just thinking has disposed switches information in the preceding Master Server Info distribution module.
7. the real-time library module of master server after switching begins to handle information such as protection incident that the packet parsing module produces from direct-connected device, self check.
Three, the processing after the switching: switching the standby server in back is master server, and master server is a standby server.
Embodiment 1: the switching device of monitoring dual hosts at translation station of the present invention, and master server, standby server hardware using DELL company 745 model main frames, the main control software system adopts ISA master server 300+2.90, adopts the VC++6.0 program language to realize.
The real-time library module of master server carries out arranging order with the message data transmit queue device of receiving:
BOOL CEventMng::ACK_RlyEventData(CRelaySOELog* pData，BOOL
bLocal)
{
BOOL?bRes＝FALSE；
Lock()；
CRelaySOELog*pEventTmp；
int?nSize＝m_RlyEventArray.GetSize()；
for(int?i＝0；i＜nSize；i++)
{
pEventTmp＝m_RlyEventArray.GetAt(i)；
if((pData-＞EventTime＝＝pEventTmp-＞EventTime)
&&(pData-＞wFronterAliaID＝＝pEventTmp-＞wFronterAliaID)
&&(pData-＞UnitID＝＝pEventTmp-＞UnitID)
&&(pData-＞EventSeqID＝＝pEventTmp-＞EventSeqID)
&&(pData-＞EventPointID＝＝pEventTmp-＞EventPointID)
&&(pData-＞FaultID＝＝pEventTmp-＞FaultID)
&&(pData-＞FaultValue＝＝pEventTmp-＞FaultValue)
&&(pData-＞DoSum＝＝pEventTmp-＞DoSum))
{
bRes＝TRUE；
pEventTmp-＞bAcked＝TRUE；
UpdateIn_RelaySoe(pEventTmp，bLocal)；
break；
}
}
Unlock()；
return?bRes；
}
The real-time library module of master server is put into the distribution of information module command with the information of receiving:
void?CSyncEventWithScada::AddEvent(const?char*pEvent，int?nEventType，
bool?bIsAck)
{
if(！bDualServer)
return；
char?ch[512]；
tagEventCtrl*pFrameCtrl＝new?tagEventCtrl；
memset(pFrameCtrl，0，sizeof(tagEventCtrl))；
pFrameCtrl-＞theEvent.bIsAck＝bIsAck；
pFrameCtrl-＞theEvent.nEventType＝nEventType；
memcpy(pFrameCtrl-＞theEvent.byBuff，pEvent，
CPubFuns::GetEventSize(nEventType))；
pFrameCtrl-＞nCount＝0；
CSingleLock?lock(&m_mutex)；
lock.Lock()；
if(lock.IsLocked())
{
//m_lstSendFrameCtrl.push_back(frameCtrl)；
CString?strKey＝FormMapKey(pEvent，nEventType，bIsAck)；
m_mapSendFrameCtrl.SetAt(strKey，pFrameCtrl)；
lock.Unlock()；
CPubFuns::GetEventTypeName(nEventType).c_str()，
CPubFuns::GetEventLocalID(pEvent，nEventType)，
CPubFuns::GetEventInfo(pEvent，nEventType))；
}
}
Standby server confirms that device sends the order of confirmation message to master server data transmit queue device:
bool?CSyncEventWithScada::SendResponsedSyncEvent(const?char*pEvent，int
nEventType，bool?bIsAck)
{
m_nSyncWaitCount＝0；
char?ch[512]；
Sprintf (ch, " send the incident confirmation message (SYNC_FUNC:%s, LocalID=%d n believe in detail
Breath: %s) ",
CPubFuns::GetEventTypeName(nEventType).c_str()，
CPubFuns::GetEventLocalID(pEvent，nEventType)，
CPubFuns::GetEventInfo(pEvent，nEventType))；
//CPubFuns::DebugMsg(ch)；
tagEvent?theEvent；
memset(&theEvent，0，sizeof(tagEvent))；
theEvent.bIsAck＝bIsAck；
theEvent.nEventType＝nEventType；
memcpy(theEvent.byBuff，pEvent，CPubFuns::GetEventSize(nEverntType))；
return?SendEvent(theEvent，true)；
}
After the Master Server Info distribution module is received the standby server confirmation message, the order of the information that deletion is corresponding:
void?CSyncEventWithScada::DeleteEvent(const?char*pEvent，int?nEventType，
bool?bIsAck)
{
char?ch[512]；
SprintF (ch, " prepare incident in the deletion management by synchronization formation (%s, LocalID=%d, the n details:
％s)″，
CPubFuns::GetEventTypeName(nEventType).c_str()，
CPubFuns::GetEventLocalID(pEvent，nEventType)，
CPubFuns::GetEventInfo(pEvent，nEventType))；
tagEventCtrl*pFrameCtrl＝NULL；
CSingleLock?lock(&m_mutex)；
lock.Lock()；
bool?bFinded＝false；
if(lock.IsLocked())
{
CString?strKey＝FormMapKey(pEvent，nEventType，bIsAck)；
if(m_mapSendFrameCtrl.Lookup(strKey，(void*&)pFrameCtrl))
{
bFinded＝true；
delete?pFrameCtrl；
m_mapSendFrameCtrl.RemoveKey(strKey)；
}
if(bFinded)
Sprintf (ch, " receives the response of offside server, deletion event from the management by synchronization formation (%s,
LocalID＝％d)″，
CPubFuns::GetEventTypeName(nEventType).c_str()，
CPubFuns::GetEventLocalID(pEvent，nEventType))；
}
else
{
Sprintf (ch, " deletes failure, in the management by synchronization formation, do not find corresponding incident (%s,
LocalID＝％d)″，
CPubFuns::GetEventTypeName(nEventType).c_str()，
CPubFuns::GetEventLocalID(pEvent，nEventType))；
}
}
}
}
Embodiment 2: the switching device of monitoring dual hosts at translation station of the present invention, and master server, the standby server hardware using SUN ULTRA45 of company model main frame, the main control software system adopts PRS master server 700U, adopts the QT program language to realize.
The data transmit queue device of Master Server Info distribution module carries out arranging order:
template<typename?T>
bool?CSyncEventProc_Template<T>::HMI_AckEvent(const?void*pData)
{
const?T&?theEvent ＝*reinterpret_cast<const?T*>(pData)；
BOOL?bRes＝false；
m_Lock.Lock()；
typename?QValueList<T>::iterator?pos＝FindEventPos(theEvent)；
if(pos！＝m_EventList.end())
{
T&theEvent＝*pos；
theEvent.bAcked＝true；
char?ch[100]；
sprintf(ch，″LocalID＝％d?and?RemoteID＝％d″，theEvent.LocalID，
theEvent.RemoteID)；
CScadaMaster::Instance().m_pEventMng-＞m_pSaveEventToDB-＞AckEvent(m_nEv
entType，ch)；
CScadaMaster::Instance().m_pInterface_P4-＞AddEventForScadaSync(pData，
m_nEventType，true)；
if(::IsMain())
CScadaMaster::Instance().m_pInterface_P4-＞NetSendEvent(pData， m_nEventType，
_SEND_TYPE_ACK)；
bRes＝true；
}
m_Lock.UnLock()；
return?bRes；
}
The real-time library module of master server is put into the distribution of information module command with the information of receiving:
template<typename?T>
bool?CRawEventProc_Template<T>::AddEvent(const?void*p)
{
m_Lock.Lock()；
if(m_EventList.size()＞＝MAXCOUNT_RAW_EVENT)
{
char?ch[500]；
Sprintf (ch, " warning: quantity reached the upper limit (%d) when part (%s) was made trouble in interpolation ",
libRTDB::CPubFuns::GetEventTypeName(m_nEventType).c_str()，
MAXCOUNT_RAW_EVENT)；
CPubFuns::DebugMsg(ch)；
}
else
{
const?T&theEvent＝*reinterpret_cast<const?T*>(p)；
m_EventList.push_back(theEvent)；
}
m_Lock.UnLock()；
return?true；
}
Standby server confirms that device sends the order of confirmation message to master server data transmit queue device:
template<typename?T>
bool?CSyncEventProc_Template<T>::HMI_AckEvent(const?void*pData)
{
const?T&theEvent ＝*reinterpret_cast<const?T*>(pData)；
BOOL?bRes＝false；
m_Lock.Lock()；
typename?QValueList<T>::iterator?pos＝FindEventPos(theEvent)；
if(pos！＝m_EventList.end())
{
T&?theEvent＝*pos；
theEvent.bAcked＝true；
char?ch[100]；
sprintf(ch，″LocalID＝％d?and?RemoteID＝％d″，theEvent.LocalID，
theEvent.RemoteID)；
CScadaMaster::Instance().m_pEventMng-＞m_pSaveEventToDB-＞AckEvent(m_nEv
entType，ch)；
if(::IsMain())
{
When being main, // server just the affirmation incident is joined in the synchronization caching
CScadaMaster::Instance().m_pInterface_P4-＞AddEventForScadaSync(pData，
m_nEventType，true)；
CScadaMaster::Instance().m_pInterface_P4-＞NetSendEvent(pData，m_nEventType，
_SEND_TYPE_ACK)；
}
bRes＝true；
}
m_Lock.UnLock()；
return?bRes；
}
After the Master Server Info distribution module is received the standby server confirmation message, the order of the information that deletion is corresponding:
bool?CSyncEventProc_Template<T>::Delete_Event(const?void*pData)
{
const?T&theEvent ＝*reinterpret_cast<const?T*>(pData)；
BOOL?bRes＝FALSE；
m_Lock.Lock()；
typename?QValueList<T>::iterator?pos；
for(pos＝m_EventList.begin()；pos！＝m_EventLi?st.end()；++pos)
{
if(libRTDB::CPubFuns::IsEqual(theEvent，*pos))
{
m_EventList.erase(pos)；
break；
}
}
m_Lock.UnLock()；
return?bRes；
}
Claims (9)
1. the switching device of a monitoring dual hosts at translation station, be provided with master server, standby server, the network-driven module of master server is connected with its real-time library module through its packet parsing module, the network-driven module of standby server is connected with its real-time library module through its packet parsing module, master server is connected with direct-connected device with the network-driven module of standby server, it is characterized in that: described master server and standby server are respectively arranged with the distribution of information module, the distribution of information module is connected with real-time library module, and the distribution of information module of master server is connected with the distribution of information module of standby server.
2. the switching device of monitoring dual hosts at translation station according to claim 1, it is characterized in that: the distribution of information module of described master server is provided with data transmit queue device and confirms device, and the distribution of information module of standby server is provided with data transmit queue device and confirms device.
3. the switching device of monitoring dual hosts at translation station according to claim 2 is characterized in that: the message that the network-driven module of described master server will be received from jockey is stored in real-time library module after the packet parsing module parses.
4. the switching device of monitoring dual hosts at translation station according to claim 3, it is characterized in that: described standby server is not accepted the message of jockey.
5. the switching device of monitoring dual hosts at translation station according to claim 4, it is characterized in that: when described master server and standby server switch, after receiving the network-driven module, the real-time library module of master server also do not deposit the not stored information of real-time library module in, through the data transmit queue device of master server, the affirmation device of standby server, send into the real-time trousers module stores of standby server.
6. the switching device of monitoring dual hosts at translation station according to claim 5, it is characterized in that: after the real-time trousers module of described standby server is received not stored information, the affirmation device of standby server sends confirmation to the data transmit queue device of master server, after the data transmit queue device of master server is received confirmation, the not stored information in the data transmit queue device of deletion master server.
7. the switching device of monitoring dual hosts at translation station according to claim 6 is characterized in that: after described master server and standby server switched, former master server switched to standby server, and former standby server switches to master server.
8. the switching device of monitoring dual hosts at translation station according to claim 7 is characterized in that: the message that the network-driven module of the master server after the described switching will be received from jockey is stored in real-time library module after the packet parsing module parses.
9. the switching device of monitoring dual hosts at translation station according to claim 8, it is characterized in that: the standby server after the described switching is not accepted the message of jockey.
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| CN103124220A (en) * | 2011-11-21 | 2013-05-29 | 苏州达联信息科技有限公司 | Primary and standby synchronization protocol of video distribution network global server |
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| CN104253483A (en) * | 2014-09-04 | 2014-12-31 | 广西电网公司电力科学研究院 | Redundancy protection method and system of transformer substation |
| CN107104822A (en) * | 2017-03-29 | 2017-08-29 | 杭州云纪网络科技有限公司 | Server preparedness processing method, device, storage medium and electronic equipment |
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| US8259562B2 (en) * | 2004-10-07 | 2012-09-04 | Cisco Technology, Inc. | Wiring closet redundancy |
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- 2008-04-21 CN CN2008100667626A patent/CN101262325B/en active Active
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| CN101951026B (en) * | 2010-08-27 | 2012-07-25 | 广东电网公司茂名供电局 | Double machine measurement and control online main and standby switching method |
| CN102238036A (en) * | 2011-07-15 | 2011-11-09 | 苏州阔地网络科技有限公司 | User session backup handover method and system |
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| CN104253483A (en) * | 2014-09-04 | 2014-12-31 | 广西电网公司电力科学研究院 | Redundancy protection method and system of transformer substation |
| CN107104822A (en) * | 2017-03-29 | 2017-08-29 | 杭州云纪网络科技有限公司 | Server preparedness processing method, device, storage medium and electronic equipment |
| CN107104822B (en) * | 2017-03-29 | 2020-09-08 | 恒生电子股份有限公司 | Server disaster recovery processing method and device, storage medium and electronic equipment |
| CN112219835A (en) * | 2020-10-13 | 2021-01-15 | 国网江苏省电力有限公司常州供电分公司 | Substation safety protection system and control method, control device and storage medium thereof |
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| Publication number | Publication date |
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| CN101262325B (en) | 2011-07-20 |
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