CN110417761A - Communication means and device based on dual-computer redundancy - Google Patents
Communication means and device based on dual-computer redundancy Download PDFInfo
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- CN110417761A CN110417761A CN201910646481.6A CN201910646481A CN110417761A CN 110417761 A CN110417761 A CN 110417761A CN 201910646481 A CN201910646481 A CN 201910646481A CN 110417761 A CN110417761 A CN 110417761A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/16—Error detection or correction of the data by redundancy in hardware
- G06F11/20—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements
- G06F11/202—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where processing functionality is redundant
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
- H04L41/0668—Management of faults, events, alarms or notifications using network fault recovery by dynamic selection of recovery network elements, e.g. replacement by the most appropriate element after failure
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/18—Multiprotocol handlers, e.g. single devices capable of handling multiple protocols
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Abstract
This application discloses a kind of communication means and device based on dual-computer redundancy.Master agreement module in this method in first terminal sends the first request message including device identification to communication equipment；In the receiving time section of communication protocol setting, if it is detected that there are the communication equipments of not sent first response message in communication equipment, then according to preset dual-computer redundancy configuration information, standby protocol module into second terminal sends the second request message of the device identification of the communication equipment including not sent first response message, so that standby protocol module sends the second request message, and the second response message that the communication equipment for receiving not sent first response message is sent according to the second request message to the communication equipment of not sent first response message.The method increase the ability to ward off risks and communication efficiencies.
Description
Technical field
This application involves field of communication technology more particularly to a kind of communication means and device based on dual-computer redundancy.
Background technique
Dual-computer redundancy, which refers to, will be mounted to mutually redundant two equipment, and the same time only has a devices collect data.
The equipment for executing task under normal circumstances is known as host, and when the communication link of running host breaks down, host leads to
The communication link of letter link switching to standby host continues to execute corresponding task, such as data acquisition, access task, and standby host again will be corresponding
Implementing result feed back to host, to restore the normal operation of whole system.
However, it is found by the inventors that above-mentioned dual-computer redundancy is that host does not receive response message or the heart within a preset period of time
The switching that communication link is carried out after the communication link of itself breaks down is determined when jumping message.In host, there are various communications protocols
Communication link when, if the communication link of Host Detection to a certain communication protocol breaks down, be based on dual-computer redundancy mechanism,
The communication link of various communications protocols can be switched over simultaneously, i.e., switched over the communication link of failure, it also can will be normal
Communication link switch over, since there are handover delays, reduce the communication efficiency of host and communication equipment.
Summary of the invention
The embodiment of the present application provides a kind of communication means and device based on dual-computer redundancy, solves of the existing technology
The above problem, to improve the communication efficiency of host and communication equipment.
In a first aspect, providing a kind of communication means based on dual-computer redundancy, this method may include:
Master agreement module in first terminal sends the first request message to communication equipment, and first request message includes
The device identification of the communication equipment, the communication chain for the communication protocol that the communication device works are provided in the master agreement module
On the road；
In the receiving time section of communication protocol setting, if it is detected that there are not sent first in the communication equipment
The communication equipment of response message, then according to preset dual-computer redundancy configuration information, the standby protocol module into second terminal is sent
Second request message, second request message include the device identification of the communication equipment of not sent first response message,
So that the standby protocol module sends second request message to the communication equipment of not sent first response message, and connect
Receive the second response message that the communication equipment of not sent first response message is sent according to second request message；Its
In, the communication chain for the communication protocol that the communication device works of not sent first response message are provided in the standby protocol module
On the road, the standby protocol module and the master agreement module communication protocol having the same；
Second response message not parsed that the standby protocol module is sent is received, second response message includes
The communication data of the communication equipment of not sent first response message.
It is described before the standby protocol module into second terminal sends the second request message in an optional realization
Method further include:
The communication data of the communication equipment for sending the first response message is sent to the standby protocol module；
After receiving second response message not parsed that the standby protocol module is sent, the method also includes:
Second response message is parsed, the communication of the communication equipment of not sent first response message is obtained
Data；
The communication data of the communication equipment of not sent first response message is sent to the standby protocol module.
It is described after the standby protocol module into second terminal sends the second request message in an optional realization
Method further include:
If the standby protocol module receives target communication device in the communication equipment of not sent first response message
The control message of transmission then receives the control message that the standby protocol module is sent, and the target communication device is described
Any communication equipment in the communication equipment of not sent first response message；
The operational order is executed, implementing result is obtained；
The implementing result is sent to the standby protocol module, so that the standby protocol module is set to the destinations traffic
Preparation send the implementing result.
One it is optional realize, receive the standby protocol module transmission second response message not parsed it
Afterwards, the method also includes:
Whether the quantity for detecting the communication equipment for sending the first response message is less than the not sent first response report
The quantity of the communication equipment of text；
If being less than, the standby protocol module is determined as new master agreement module, the master agreement module is determined as newly
Standby protocol module, and the first notification message is sent to the standby protocol module, first notification message includes the master agreement
The standby protocol module is determined as new master agreement module by module, and the master agreement module is determined as to the letter of new standby protocol module
Breath.
One it is optional realize, receive the standby protocol module transmission second response message not parsed it
Afterwards, the method also includes:
The second notification message that the standby protocol module is sent is received, the second notification message includes the standby agreement mould
The standby protocol module is determined as new master agreement module by block, and the master agreement module is determined as to the letter of new standby protocol module
Breath；The information is the standby protocol module in the communication equipment for detecting the first response message of the master agreement module reception
Quantity, which is less than, to be generated when the quantity of the master agreement module communication equipment that does not receive the first response message.
In an optional realization, the master agreement module is excellent according to preset protocol module with the standby protocol module
First the sequencing of rule or self-starting time determine；
Using serial communication mode or using network communication mode between the master agreement module and the standby protocol module
Carry out data communication；
Time synchronization is carried out according to the preset time method of synchronization between the master agreement module and the standby protocol module.
Second aspect provides a kind of communication device based on dual-computer redundancy, and described device is applied in master agreement module,
The apparatus may include: transmission unit and receiving unit；
The transmission unit, for communication equipment send the first request message, first request message includes institute
State the device identification of communication equipment, the communication link for the communication protocol that the communication device works are provided in the master agreement module
On；
The receiving unit, the first response message sent for receiving the communication equipment, first response message
Communication data including corresponding communication device；
The transmission unit is also used in the receiving time section that the communication protocol is arranged, if it is detected that the communication
There are the communication equipments of not sent first response message in equipment, then according to preset dual-computer redundancy configuration information, eventually to second
Standby protocol module in end sends the second request message, and second request message includes not sent first response message
The device identification of communication equipment, so that the standby protocol module sends institute to the communication equipment of not sent first response message
The second request message is stated, and the communication equipment for receiving not sent first response message is sent according to second request message
The second response message；Wherein, the communication device works of not sent first response message are provided in the standby protocol module
Communication protocol communication link on, the standby protocol module and the master agreement module communication protocol having the same；
The receiving unit is also used to receive second response message not parsed that the standby protocol module is sent,
Second response message includes the communication data of the communication equipment of not sent first response message.
In an optional realization, described device further includes parsing module；
The transmission unit is also used to before standby protocol module the second request message of transmission into second terminal, to institute
State the communication data that standby protocol module sends the communication equipment for sending the first response message；
The resolution unit, for second response message not parsed for receiving the standby protocol module transmission it
Afterwards, second response message is parsed, obtains the communication data of the communication equipment of not sent first response message；
The transmission unit is also used to set to the communication that the standby protocol module sends not sent first response message
Standby communication data.
In an optional realization, described device further includes execution unit；
The receiving unit, if being also used to the communication that the standby protocol module receives not sent first response message
The control message that target communication device is sent in equipment then receives the control message that the standby protocol module is sent, described
Target communication device is any communication equipment in the communication equipment of not sent first response message；
The execution unit is also used to execute the control message, obtains implementing result；
The transmission unit is also used to for the implementing result being sent to the standby protocol module, so that the standby agreement
Module sends the implementing result to the target communication device.
In an optional realization, described device further includes detection unit and determination unit；
The detection unit, it is described whether the quantity for detecting the communication equipment for sending the first response message is less than
The quantity of the communication equipment of not sent first response message；
The determination unit, if the standby protocol module is determined as new master agreement module, by the master for being less than
Protocol module is determined as new standby protocol module；
The transmission unit is also used to send the first notification message, first notification message to the standby protocol module
The standby protocol module is determined as new master agreement module including the master agreement module, the master agreement module is determined as newly
The information of standby protocol module.
In an optional realization, it is logical to be also used to receive the standby protocol module is sent second for the receiving unit
Know message, the second notification message includes that the standby protocol module is determined as new master agreement module by the standby protocol module,
The master agreement module is determined as to the information of new standby protocol module；The information be the standby protocol module detect it is described
When the quantity for the communication equipment that the quantity for sending the communication equipment of the first response message is less than not sent first response message
It generates.
In an optional realization, the master agreement module is excellent according to preset protocol module with the standby protocol module
First the sequencing of rule or self-starting time determine；
Using serial communication mode or using network communication mode between the master agreement module and the standby protocol module
Carry out data communication；
Time synchronization is carried out according to the preset time method of synchronization between the master agreement module and the standby protocol module.
The third aspect provides a kind of electronic equipment, which includes processor, communication interface, memory and lead to
Believe bus, wherein processor, communication interface, memory complete mutual communication by communication bus；
Memory, for storing computer program；
Processor when for executing the program stored on memory, realizes any side in above-mentioned first aspect
Method step.
Fourth aspect provides a kind of computer readable storage medium, and meter is stored in the computer readable storage medium
Calculation machine program, the computer program realize any method and step in above-mentioned first aspect when being executed by processor.
Master agreement module in the communication means based on dual-computer redundancy that the above embodiment of the present invention provides in first terminal
The first request message is sent to communication equipment, the first request message includes the device identification of communication equipment, and communication device works exist
On the communication link for the communication protocol that master agreement module provides；In the receiving time section of communication protocol setting, if it is detected that logical
Believe that there are the communication equipments of not sent first response message in equipment, then according to preset dual-computer redundancy configuration information, to second
Standby protocol module in terminal sends the second request message, and the second request message includes that the communication of not sent first response message is set
Standby device identification, so that standby protocol module sends the second request message to the communication equipment of not sent first response message, and
Receive the second response message that the communication equipment of not sent first response message is sent according to the second request message；Not sent first
The communication device works of response message are on the communication link for the communication protocol that standby protocol module provides, standby protocol module and main association
Discuss module communication protocol having the same；Receive the second response message not parsed that standby protocol module is sent, the second response report
Text includes the communication data of the communication equipment of not sent first response message.Compared with prior art, the master agreement in this method
Module can determine the communication link to break down in the communication links of multiple communication protocols according to the protocol rule of communication protocol,
And the communication link of failure is only switched to standby protocol module, to master agreement by dual-computer redundancy mechanism by position of failure point
The communication equipment that module cannot access accesses, i.e., accesses to section communication equipment, and other are without failure logical
Believe that the communication link of agreement without switching, improves the ability to ward off risks and communication efficiency.
Detailed description of the invention
Fig. 1 is a kind of communications management system of communication means application based on dual-computer redundancy provided in an embodiment of the present invention
Schematic diagram；
Fig. 2 is a kind of schematic diagram of the communication network based on dual-computer redundancy provided in an embodiment of the present invention；
Fig. 3 is a kind of communication means flow diagram based on dual-computer redundancy provided in an embodiment of the present invention；
Fig. 4 is the schematic diagram of another communication network based on dual-computer redundancy provided in an embodiment of the present invention；
Fig. 5 is a kind of structural schematic diagram of the communication device based on dual-computer redundancy provided in an embodiment of the present invention；
Fig. 6 is the structural schematic diagram of a kind of electronic equipment provided in an embodiment of the present invention.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description, it is clear that described embodiment is only some embodiments of the present application, is not whole embodiments.Based on this
Apply for embodiment, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall in the protection scope of this application.
Communication means provided in an embodiment of the present invention based on dual-computer redundancy can apply telecommunication management system shown in Fig. 1
In system, the system may include first terminal and second terminal.The communications management system can be gateway system, therefore first is whole
End and second terminal are respectively the first gateway and the second gateway.
In order to guarantee the accuracy of error correction, terminal can be mobile phone with stronger computing capability, smart phone,
User equipmenies (the User such as laptop, digit broadcasting receiver, personal digital assistant (PDA), tablet computer (PAD)
Equipment, UE), the handheld device with wireless communication function, mobile unit, wearable device, calculate and equipment or be connected to
Other processing equipments of radio modem, mobile station (Mobile station, MS) etc..
Time synchronization can be carried out using the preset time method of synchronization between first terminal and second terminal, preset time is same
Step mode can be timing code IRIG-B or Network Time Protocol (Network Time Protocol, NTP), wherein timing code
IRIG-B is that one of time system commonly uses serial transmission mode.
Wherein, first terminal may include at least one first protocol module, and each first protocol module indicates a kind of logical
Agreement is believed, as communication protocol can be serial communication protocol Modbus, DNP3.0, IEC60870-5-103 specification, IEC60870-
5-104, IEC60870-5-101 or IEC61850 etc..
Second terminal may include at least one first protocol module have the same communications protocols at least one second
Protocol module, in other words, the first protocol module in the quantity and first terminal of the second protocol module in second terminal
Quantity is identical, and communication protocol corresponds.
In communication network based on dual-computer redundancy as shown in Figure 2, the second protocol module and first of the same communications protocols
Protocol module carries out time synchronization using IRIG-B or Network Time Protocol, and provides the communication link of the same communications protocols, such as communicates total
Line, the communication link may include at least one communication equipment, which can be client device or server device.
As the first protocol module LA-1 in first terminal and the second protocol module LB-1 in second terminal provide a Modbus
The communication link I of communication protocol, the communication link I include 8 communications for meeting the IED-1 to IED-8 of Modbus communication protocol
Equipment；Second protocol module LB-2 in first protocol module LA-2 and second terminal provides a DNP3.0 communication protocol
Communication link II, the communication link II include 8 communication equipments for meeting the IED-1 to IED-8 of DNP3.0 communication protocol；First
Second protocol module LB-3 in protocol module LA-3 and second terminal provides the communication chain of an IEC61850 communication protocol
Road III, the communication link III include 8 communication equipments for meeting the IED-1 to IED-8 of IEC61850 communication protocol.
Further, the second protocol module of the same communications protocols and the first protocol module can use serial communication mode
It is communicated, such as asynchronous transmission standard interface RS232, or uses network communication mode, such as transmission control protocol
(Transmission Control Protocol, TCP) and User Datagram Protocol (User Datagram Protocol,
UDP).By serial communication mode or each self-information of network communication mode interaction, such as addressable communication on respective communication link
Number of devices and respectively currently stored data.
And dual-computer redundancy mode is used between the second protocol module and the first protocol module of the same communications protocols, i.e., this
Two protocol modules and first protocol module have preset dual-computer redundancy configuration information, which is application layer protocol
Configuration information.For example, the communications status of the first protocol module as master agreement module breaks down, master agreement module is according to double
Machine redundancy configuration information works on switching to as the corresponding second protocol module of standby protocol module.
Wherein, the second protocol module of the same communications protocols can be preferential according to preset protocol module with the first protocol module
The sequencing of rule or self-starting time, which determine, each belongs to master agreement module or standby protocol module.Preset protocol module is preferential
Protocol module in rule regulation target terminal is main protocol module, corresponding another agreement mould with the same communications protocols
Block is standby protocol module.Standby protocol module can be forwarded received message, but cannot parse to received message,
There is message forwarding capability for protocol module, but do not have packet parsing function.
In above-mentioned communication management system, if being main protocol module by the first protocol module A in first terminal；This first
The corresponding second protocol module B of protocol module A is standby protocol module, and the communications status for working as the master agreement modules A breaks down,
When other first protocol modules are normal, the master agreement modules A is only switched to this and is worked for protocol module B, and to first
Other protocol modules in terminal and second terminal do not do handover operation, that is, switching time is not present, and which thereby enhance communication effect
Rate and the ability to ward off risks.
Preferred embodiment of the present application is illustrated below in conjunction with Figure of description, it should be understood that described herein
Preferred embodiment only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention, and in the absence of conflict, this Shen
Please in embodiment and embodiment in feature can be combined with each other.
Fig. 3 is a kind of communication means flow diagram based on dual-computer redundancy provided in an embodiment of the present invention.Such as Fig. 3 institute
Show, this method may include:
Master agreement module in step 310, first terminal sends the first request message to communication equipment.
Before executing the step, the second protocol module of the same communications protocols and the first protocol module can be according to default
Protocol module priority rule or the sequencing of self-starting time determine respective module status, that is, each belong to master agreement module
Or standby protocol module, such as determines first terminal according to the sequencing of preset protocol module priority rule or self-starting time
In the first protocol module be main protocol module, the second protocol module in second terminal is determined as standby protocol module.
For example, being with second protocol module LB-1 and the first protocol module LA-1 with identical Modbus communication protocol
Example, second protocol module LB-1 and the first protocol module LA-1 can determine each autonomous according to preset protocol module priority rule
Standby state, wherein preset protocol module priority rule provides with the protocol module in first terminal there is phase for main protocol module
It is standby protocol module with the protocol module in the second terminal of communication protocol, i.e., second protocol module LB-1 is determined as standby agreement
First protocol module LA-1 is determined as master agreement module by module.
Alternatively, after first terminal and second terminal power on simultaneously, second protocol module LB-1 and the first protocol module LA-
1 records the respective self-starting time, and passes through the RS232 or TCP between second protocol module LB-1 and the first protocol module LA-1
Communication connection obtains the self-starting time of other side, respectively determination according to the sequencing of self-starting time that the self-starting time is short
For main protocol module, self-starting time length is determined as standby protocol module, second protocol module LB-1 is such as determined as standby association
Module is discussed, the first protocol module LA-1 is determined as master agreement module.
Step 310 is returned to, communication equipment of the master agreement module on the corresponding communication link of master agreement module sends first
Request message, the first request message include the device identification of communication equipment.
Specifically, master agreement module whole communication equipments on the corresponding communication link of master agreement module send first respectively
Request message, with the communication of realization and whole communication equipments, each first request message may include setting for corresponding communication device
Standby mark can also include the information such as data type, control instructions.
Step 320, master agreement module are in the receiving time section that communication protocol is arranged, and the first of receiving communication device transmission
Response message.
Since different communication protocol has corresponding protocol rule, when the reception for receiving response message can be set in protocol rule
Between section if normally receiving response message in the receiving time section show that master agreement module can normally and respective communication
Equipment is communicated；If not receiving response message in the receiving time section, or just receives and answer beyond the receiving time section
Message is answered, then shows that master agreement module cannot be communicated with corresponding communication device, i.e., there are fault points on communication link, and can
To determine the position of failure point to break down in communication link, the communication link of the communication equipment after fault point is cut later
It is changed to the communication link of standby protocol module, standby protocol module receives phase by being communicated with the communication equipment after fault point
After the response message for answering communication equipment to send, which is forwarded to master agreement module, so that master agreement module and failure
Communication equipment after point realizes normal communication.
Specifically, master agreement module in communication equipment if it is detected that do not deposit in the receiving time section of communication protocol setting
In the communication equipment of not sent first response message, then show that the communication link of present communication protocols is without failure, master agreement
Module can receive the first response message of whole communication equipments on the communication link, and the first response message includes respective communication
The communication data of equipment；
In the receiving time section of communication protocol setting, if it is detected that there are not sent first response messages in communication equipment
Communication equipment, then show present communication protocols communication link break down, later execute step 330.
Meanwhile in order to realize that data are synchronous, master agreement module can send the transmission itself received to standby protocol module
The communication data of the communication equipment of first response message.
It is understood that the number of the addressable communication equipment of master agreement module can be identified for protocol module at this time
The quantity of amount and the inaccessible communication equipment of master agreement module.
The standby protocol module of step 330, master agreement module according to preset dual-computer redundancy configuration information, into second terminal
Send the second request message.
Master agreement module can be according to preset dual-computer redundancy configuration information, and the standby protocol module into second terminal is sent
Second request message, the second request message may include the device identification of the communication equipment of not sent first response message.
Step 340, standby protocol module send the second request message to the communication equipment of not sent first response message.
The second request that standby protocol module is sent to the communication equipment of not sent first response message forwarding master agreement module
Message.
The communication equipment that step 350, standby protocol module receive not sent first response message is sent out according to the second request message
The second response message sent.
Standby protocol module receives the second response message that the communication equipment of not sent first response message is sent, the second response
Message may include the communication data of corresponding communication device.Since standby protocol module does not have packet parsing function, therefore cannot parse
Communication data in second response message out.
Later, the second response message not parsed is sent to master by the communication connection of RS232 or TCP by standby protocol module
Protocol module, master agreement module parse the second response message, get not sent first response in the second response message
The communication data of the communication equipment of message, to realize master agreement module to all communication is set on the communication link of present communication protocols
Standby access task, whole communication equipments include the communication equipment and not sent first response message for sending the first response message
Communication equipment.
In order to realize the synchronization of data, master agreement module can send the communication in the second response message to standby protocol module
Data, i.e. master agreement module can send the communication data of the communication equipment of not sent first response message to standby protocol module.
Optionally, since communication equipment can be server device, therefore standby protocol module can also receive not sent the
The control message that target communication device is sent in the communication equipment of one response message, wherein target communication device is not sent the
Any communication equipment in the communication equipment of one response message；
Standby protocol module can send the control message to master agreement module by the communication connection of RS232 or TCP；
After master agreement module receives the control message, corresponding control operation is executed, obtains implementing result, and knot will be executed
Fruit is sent to standby protocol module, so that standby protocol module sends the implementing result to target communication device.
Optionally, in order to further increase the communication efficiency of communication equipment Yu master agreement module, data transmission delay is reduced,
Master agreement module or standby protocol module can obtain other side by the communication connection of RS232 or TCP, and actually addressable communication is set
Standby quantity, and respective module status is redefined according to the quantity of the practical addressable communication equipment of both sides, i.e., again really
Fixed new master agreement module and new standby protocol module.Wherein, actually addressable communication equipment is to send first to answer to master agreement module
The communication equipment of message is answered, actually addressable communication equipment is that the communication of not sent first response message is set to standby protocol module
It is standby.
Specifically, being directed to master agreement module, the detection of master agreement module sends the quantity of the communication equipment of the first response message
Whether the quantity of the communication equipment of not sent first response message is less than；
If being less than, standby protocol module is determined as new master agreement module by master agreement module, itself will be determined as new standby association
Module is discussed, and sends the first notification message to new master agreement module (i.e. for protocol module), which includes main association
Standby protocol module is determined as new master agreement module by view module, and master agreement module is determined as to the information of new standby protocol module.
Alternatively, the communication that standby protocol module detection master agreement module receives the first response message is set for standby protocol module
Whether standby quantity is less than the quantity that master agreement module does not receive the communication equipment of the first response message；
It if being less than, itself will be determined as new master agreement module for protocol module, master agreement module be determined as new standby association
Module is discussed, and Xiang Xinbei protocol module (i.e. master agreement module) sends second notification message, which includes standby association
Master agreement module is determined as new standby protocol module by view module, and standby protocol module is determined as to the information of new master agreement module.
It is understood that if the quantity of the practical addressable communication equipment of master agreement module or standby protocol module is identical,
Then without the replacement of activestandby state.
In conjunction with Fig. 2, in one example, as shown in figure 4, what LA-1 and LB-1, LA-2 and LB-2, LA-3 and LB-3 were formed
Three groups of protocol modules pass through each group preset protocol module priority rule respectively and determine corresponding module status, specific as follows:
In the communication link I of Modbus communication protocol, LA-1 is main protocol module and LB-1 is standby protocol module；
In the communication link II of DNP3.0 communication protocol, LA-2 is standby protocol module and LB-2 is main protocol module；
In the communication link III of IEC61850 communication protocol, LA-3 is standby protocol module and LB-3 is main protocol module；
(1) in communication link I, 8 communication equipments of the LA-1 to IED-1 to IED-8 send the first request message, each
First request message includes the device identification of corresponding communication device, and in the receiving time section of Modbus communication protocol setting,
3 the first response messages that IED-1 and IED-3 is sent are received only, therefore LA-1 determines that the fault point of communication link appears in
On communication link between IED-3 and IED-4；
LA-1 sends the second request message, each second request report according to preset dual-computer redundancy configuration information, to LB-1
Text respectively includes the device identification of IED-4 to IED-8, while the communication data of IED-4 to IED-8 is sent to LB-1, to realize
Data are synchronous.
LB-1 sends the second request message, and that received IED-4 to IED-8 is sent to IED-4 to IED-8 respectively
Two response messages are forwarded to LA-1, and each second response message includes the communication data of corresponding communication device.Later, LA-1 to
LB-1 sends the communication data of IED-4 to IED-8, to realize that data are synchronous.
In addition, LB-1 detects that the quantity of itself practical addressable communication equipment is 5, LA-1 actually addressable communication
The quantity of equipment is 3, and since 3 less than 5, therefore LB-1 itself will be determined as new master agreement module, and LA-1 is determined as new standby association
Discuss module；
Later, LB-1 sends second notification message to LA-1, which includes that LA-1 is determined as newly by LB-1
LB-1, is determined as the information of new master agreement module by standby protocol module.
(2) in communication link II, 8 communication equipments of the LB-2 to IED-1 to IED-8 send the first request message, often
A first request message includes the device identification of corresponding communication device, and in the receiving time section of DNP3.0 communication protocol setting
It is interior, receive the first response message of 8 communication equipments transmission, therefore LB-2 determine communication link there is no fault point.
In order to realize that data are synchronous, LB-2 sends the communication data of IED-1 to IED-8 to LA-2.
(3) in communication link III, 8 communication equipments of the LB-3 to IED-1 to IED-8 send the first request message, often
A first request message includes the device identification of corresponding communication device, and in the receiving time section of IEC61850 communication protocol setting
It is interior, the first response message of 4 communication equipments transmission is received only, therefore LB-3 determines that the fault point of communication link appears in IED-
On communication link between 4 and IED-5；
LB-3 sends the second request message, each second request report according to preset dual-computer redundancy configuration information, to LA-3
Text respectively includes the device identification of IED-5 to IED-8, while the communication data of IED-1 to IED-4 is sent to LA-3, to realize
Data are synchronous.
LA-3 sends the second request message, and that received IED-5 to IED-8 is sent to IED-5 to IED-8 respectively
Two response messages are forwarded to LB-3, and each second response message includes the communication data of corresponding communication device.Later, LB-3 to
LA-3 sends the communication data of IED-5 to IED-8, to realize that data are synchronous.
In addition, LA-3 detects that the quantity of itself practical addressable communication equipment is 4, LB-3 actually addressable communication
The quantity of equipment is also 3, therefore LA-3 is not updated module status.
Master agreement module in the communication means based on dual-computer redundancy that the above embodiment of the present invention provides in first terminal
The first request message is sent to communication equipment, the first request message includes the device identification of communication equipment, and communication device works exist
On the communication link for the communication protocol that master agreement module provides；In the receiving time section of communication protocol setting, if it is detected that logical
Believe that there are the communication equipments of not sent first response message in equipment, then according to preset dual-computer redundancy configuration information, to second
Standby protocol module in terminal sends the second request message, and the second request message includes that the communication of not sent first response message is set
Standby device identification, so that standby protocol module sends the second request message to the communication equipment of not sent first response message, and
Receive the second response message that the communication equipment of not sent first response message is sent according to the second request message；Not sent first
The communication device works of response message are on the communication link for the communication protocol that standby protocol module provides, standby protocol module and main association
Discuss module communication protocol having the same；Receive the second response message not parsed that standby protocol module is sent, the second response report
Text includes the communication data of the communication equipment of not sent first response message.Compared with prior art, the master agreement in this method
Module can determine the communication link to break down in the communication links of multiple communication protocols according to the protocol rule of communication protocol,
And the communication link of failure is only switched to standby protocol module, to master agreement by dual-computer redundancy mechanism by position of failure point
The communication equipment that module cannot access accesses, i.e., accesses to section communication equipment, and other are without failure logical
Believe that the communication link of agreement without switching, improves the ability to ward off risks and communication efficiency.
Corresponding with the above method, the embodiment of the present invention also provides a kind of communication device based on dual-computer redundancy, such as Fig. 5 institute
Show, being somebody's turn to do the communication device based on dual-computer redundancy includes: transmission unit 510 and receiving unit 520；
Transmission unit 510, for communication equipment send the first request message, first request message includes described
The device identification of communication equipment, the communication link for the communication protocol that the communication device works are provided in the master agreement module
On；
Receiving unit 520, the first response message sent for receiving the communication equipment, the first response message packet
Include the communication data of corresponding communication device；
Transmission unit 510 is also used in the receiving time section that the communication protocol is arranged, if it is detected that the communication is set
It is standby it is middle there are the communication equipments of not sent first response message, then according to preset dual-computer redundancy configuration information, to second terminal
In standby protocol module send the second request message, second request message includes the logical of not sent first response message
The device identification of equipment is believed, so that the standby protocol module is to described in the transmission of the communication equipment of not sent first response message
Second request message, and the communication equipment that receives not sent first response message is sent according to second request message
Second response message；Wherein, the communication device works of not sent first response message are provided in the standby protocol module
On the communication link of communication protocol, the standby protocol module and the master agreement module communication protocol having the same；
Receiving unit 520 is also used to receive second response message not parsed that the standby protocol module is sent, institute
State the communication data that the second response message includes the communication equipment of not sent first response message.
In an optional realization, described device further includes resolution unit 530；
Transmission unit 510 is also used to before standby protocol module the second request message of transmission into second terminal, Xiang Suoshu
Standby protocol module sends the communication data of the communication equipment for sending the first response message；
Resolution unit 530, for second response message not parsed for receiving the standby protocol module transmission it
Afterwards, second response message is parsed, obtains the communication data of the communication equipment of not sent first response message；
Transmission unit 510 is also used to set to the communication that the standby protocol module sends not sent first response message
Standby communication data.
In an optional realization, described device further includes execution unit 540；
Receiving unit 520, if being also used to the communication that the standby protocol module receives not sent first response message
The control message that target communication device is sent in equipment then receives the control message that the standby protocol module is sent, described
Target communication device is any communication equipment in the communication equipment of not sent first response message；
Execution unit 540 is also used to execute the control message, obtains implementing result；
Transmission unit 510 is also used to for the implementing result being sent to the standby protocol module, so that the standby agreement mould
Block sends the implementing result to the target communication device.
In an optional realization, described device further includes detection unit 550 and determination unit 560；
Detection unit 550, it is described whether the quantity for detecting the communication equipment for sending the first response message is less than
The quantity of the communication equipment of not sent first response message；
Determination unit 560, if the standby protocol module is determined as new master agreement module, by the master for being less than
Protocol module is determined as new standby protocol module；
Transmission unit 510 is also used to send the first notification message, the first notification message packet to the standby protocol module
It includes the master agreement module and the standby protocol module is determined as new master agreement module, the master agreement module is determined as new standby
The information of protocol module.
In an optional realization, receiving unit 520 is also used to receive the second notice that the standby protocol module is sent
Message, the second notification message include that the standby protocol module is determined as new master agreement module by the standby protocol module, will
The master agreement module is determined as the information of new standby protocol module；The information is that the standby protocol module is detecting the hair
It is raw when the quantity for the communication equipment for sending the quantity of the communication equipment of the first response message to be less than not sent first response message
At.
In an optional realization, the master agreement module is excellent according to preset protocol module with the standby protocol module
First the sequencing of rule or self-starting time determine；
Using serial communication mode or using network communication mode between the master agreement module and the standby protocol module
Carry out data communication；
Time synchronization is carried out according to the preset time method of synchronization between the master agreement module and the standby protocol module.
The function of each functional unit for the communication device based on dual-computer redundancy that the above embodiment of the present invention provides, Ke Yitong
Above-mentioned various method steps are crossed to realize, it is therefore, each in the communication device provided in an embodiment of the present invention based on dual-computer redundancy
The specific work process and beneficial effect of unit, do not repeat again herein.
The embodiment of the invention also provides a kind of electronic equipment, as shown in fig. 6, include processor 610, communication interface 620,
Memory 630 and communication bus 640, wherein processor 610, communication interface 620, memory 630 are complete by communication bus 640
At mutual communication.
Memory 630, for storing computer program；
Processor 610 when for executing the program stored on memory 630, realizes following steps:
The first request message is sent to communication equipment, first request message includes the equipment mark of the communication equipment
Know, the communication device works are on the communication link for the communication protocol that the master agreement module provides；
In the receiving time section of communication protocol setting, if it is detected that there are not sent first in the communication equipment
The communication equipment of response message, then according to preset dual-computer redundancy configuration information, the standby protocol module into second terminal is sent
Second request message, second request message include the device identification of the communication equipment of not sent first response message,
So that the standby protocol module sends second request message to the communication equipment of not sent first response message, and connect
Receive the second response message that the communication equipment of not sent first response message is sent according to second request message；Its
In, the communication chain for the communication protocol that the communication device works of not sent first response message are provided in the standby protocol module
On the road, the standby protocol module and the master agreement module communication protocol having the same；
Second response message not parsed that the standby protocol module is sent is received, second response message includes
The communication data of the communication equipment of not sent first response message.
It is described before the standby protocol module into second terminal sends the second request message in an optional realization
Method further include:
The communication data of the communication equipment for sending the first response message is sent to the standby protocol module；
After receiving second response message not parsed that the standby protocol module is sent, the method also includes:
Second response message is parsed, the communication of the communication equipment of not sent first response message is obtained
Data；
The communication data of the communication equipment of not sent first response message is sent to the standby protocol module.
It is described after the standby protocol module into second terminal sends the second request message in an optional realization
Method further include:
If the standby protocol module receives target communication device in the communication equipment of not sent first response message
The control message of transmission then receives the control message that the standby protocol module is sent, and the target communication device is described
Any communication equipment in the communication equipment of not sent first response message；
The control message is executed, implementing result is obtained；
The implementing result is sent to the standby protocol module, so that the standby protocol module is set to the destinations traffic
Preparation send the implementing result.
One it is optional realize, receive the standby protocol module transmission second response message not parsed it
Afterwards, the method also includes:
Whether the quantity for detecting the communication equipment for sending the first response message is less than the not sent first response report
The quantity of the communication equipment of text；
If being less than, the standby protocol module is determined as new master agreement module, the master agreement module is determined as newly
Standby protocol module, and the first notification message is sent to the standby protocol module, first notification message includes the master agreement
The standby protocol module is determined as new master agreement module by module, and the master agreement module is determined as to the letter of new standby protocol module
Breath.
One it is optional realize, receive the standby protocol module transmission second response message not parsed it
Afterwards, the method also includes:
The second notification message that the standby protocol module is sent is received, the second notification message includes the standby agreement mould
The standby protocol module is determined as new master agreement module by block, and the master agreement module is determined as to the letter of new standby protocol module
Breath；The information is the standby protocol module in the communication equipment for detecting the first response message of the master agreement module reception
Quantity, which is less than, to be generated when the quantity of the master agreement module communication equipment that does not receive the first response message.
In an optional realization, the master agreement module is excellent according to preset protocol module with the standby protocol module
First the sequencing of rule or self-starting time determine；
Using serial communication mode or using network communication mode between the master agreement module and the standby protocol module
Carry out data communication；
Time synchronization is carried out according to the preset time method of synchronization between the master agreement module and the standby protocol module.
Communication bus mentioned above can be Peripheral Component Interconnect standard (Peripheral Component
Interconnect, PCI) bus or expanding the industrial standard structure (Extended Industry Standard
Architecture, EISA) bus etc..The communication bus can be divided into address bus, data/address bus, control bus etc..For just
It is only indicated with a thick line in expression, figure, it is not intended that an only bus or a type of bus.
Communication interface is for the communication between above-mentioned electronic equipment and other equipment.
Memory may include random access memory (Random Access Memory, RAM), also may include non-easy
The property lost memory (Non-Volatile Memory, NVM), for example, at least a magnetic disk storage.Optionally, memory may be used also
To be storage device that at least one is located remotely from aforementioned processor.
Above-mentioned processor can be general processor, including central processing unit (Central Processing Unit,
CPU), network processing unit (Network Processor, NP) etc.；It can also be digital signal processor (Digital Signal
Processing, DSP), it is specific integrated circuit (Application Specific Integrated Circuit, ASIC), existing
It is field programmable gate array (Field-Programmable Gate Array, FPGA) or other programmable logic device, discrete
Door or transistor logic, discrete hardware components.
The embodiment and beneficial effect solved the problems, such as due to each device of electronic equipment in above-described embodiment can join
Each step in embodiment as shown in Figure 3 realizes, therefore, the specific works mistake of electronic equipment provided in an embodiment of the present invention
Journey and beneficial effect, do not repeat again herein.
In another embodiment provided by the invention, a kind of computer readable storage medium is additionally provided, which can
It reads to be stored with instruction in storage medium, when run on a computer, so that computer executes any institute in above-described embodiment
The communication means based on dual-computer redundancy stated.
In another embodiment provided by the invention, a kind of computer program product comprising instruction is additionally provided, when it
When running on computers, so that computer executes any communication means based on dual-computer redundancy in above-described embodiment.
It should be understood by those skilled in the art that, the embodiment in the embodiment of the present application can provide as method, system or meter
Calculation machine program product.Therefore, complete hardware embodiment, complete software embodiment can be used in the embodiment of the present application or combine soft
The form of the embodiment of part and hardware aspect.Moreover, being can be used in the embodiment of the present application in one or more wherein includes meter
Computer-usable storage medium (including but not limited to magnetic disk storage, CD-ROM, the optical memory of calculation machine usable program code
Deng) on the form of computer program product implemented.
It is referring to according to the method for embodiment, equipment (system) and calculating in the embodiment of the present application in the embodiment of the present application
The flowchart and/or the block diagram of machine program product describes.It should be understood that can be realized by computer program instructions flow chart and/or
The combination of the process and/or box in each flow and/or block and flowchart and/or the block diagram in block diagram.It can mention
For the processing of these computer program instructions to general purpose computer, special purpose computer, Embedded Processor or other programmable datas
The processor of equipment is to generate a machine, so that being executed by computer or the processor of other programmable data processing devices
Instruction generation refer to for realizing in one or more flows of the flowchart and/or one or more blocks of the block diagram
The device of fixed function.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Although the preferred embodiment in the embodiment of the present application has been described, once a person skilled in the art knows
Basic creative concept, then additional changes and modifications may be made to these embodiments.So appended claims are intended to explain
Being includes preferred embodiment and all change and modification for falling into range in the embodiment of the present application.
Obviously, those skilled in the art embodiment in the embodiment of the present application can be carried out various modification and variations without
It is detached from the spirit and scope of embodiment in the embodiment of the present application.If in this way, in the embodiment of the present application embodiment these modification
Within the scope of belonging in the embodiment of the present application claim and its equivalent technologies with modification, then also it is intended in the embodiment of the present application
It includes these modifications and variations.
Claims (10)
1. a kind of communication means based on dual-computer redundancy, which is characterized in that the described method includes:
Master agreement module in first terminal sends the first request message to communication equipment, and first request message includes described
The device identification of communication equipment, the communication link for the communication protocol that the communication device works are provided in the master agreement module
On；
In the receiving time section of communication protocol setting, if it is detected that there are not sent first responses in the communication equipment
The communication equipment of message, then according to preset dual-computer redundancy configuration information, the standby protocol module into second terminal sends second
Request message, second request message include the device identification of the communication equipment of not sent first response message, so that
The standby protocol module sends second request message to the communication equipment of not sent first response message, and receives institute
State the second response message that the communication equipment of not sent first response message is sent according to second request message；Wherein, institute
The communication device works of not sent first response message are stated on the communication link for the communication protocol that the standby protocol module provides,
The standby protocol module and the master agreement module communication protocol having the same；
Second response message not parsed that the standby protocol module is sent is received, second response message includes described
The communication data of the communication equipment of not sent first response message.
2. the method as described in claim 1, which is characterized in that the standby protocol module into second terminal sends the second request report
Before text, the method also includes:
The communication data of the communication equipment for sending the first response message is sent to the standby protocol module；
After receiving second response message not parsed that the standby protocol module is sent, the method also includes:
Second response message is parsed, the communication number of the communication equipment of not sent first response message is obtained
According to；
The communication data of the communication equipment of not sent first response message is sent to the standby protocol module.
3. the method as described in claim 1, which is characterized in that the standby protocol module into second terminal sends the second request report
After text, the method also includes:
If the standby protocol module receives target communication device in the communication equipment of not sent first response message and sends
Control message, then receive the control message that the standby protocol module is sent, the target communication device is described not send out
Send any communication equipment in the communication equipment of the first response message；
The control message is executed, implementing result is obtained；
The implementing result is sent to the standby protocol module, so that the standby protocol module is sent out to the target communication device
Send the implementing result.
4. the method as described in claim 1, which is characterized in that receive described the not parsed of the standby protocol module transmission
After two response messages, the method also includes:
Whether the quantity for detecting the communication equipment for sending the first response message is less than not sent first response message
The quantity of communication equipment；
If being less than, the standby protocol module is determined as new master agreement module, the master agreement module is determined as new standby association
Module is discussed, and sends the first notification message to the standby protocol module, first notification message includes the master agreement module
The standby protocol module is determined as new master agreement module, the master agreement module is determined as to the information of new standby protocol module.
5. the method as described in claim 1, which is characterized in that receive described the not parsed of the standby protocol module transmission
After two response messages, the method also includes:
The second notification message that the standby protocol module is sent is received, the second notification message includes that the standby protocol module will
The standby protocol module is determined as new master agreement module, and the master agreement module is determined as to the information of new standby protocol module；Institute
Stating information is quantity of the standby protocol module in the communication equipment for detecting the first response message of the master agreement module reception
It is generated when the quantity for the communication equipment for not receiving the first response message less than the master agreement module.
6. the method as described in claim 1, which is characterized in that the master agreement module is according to pre- with the standby protocol module
What if protocol module priority rule or the sequencing of self-starting time determined；
It is carried out between the master agreement module and the standby protocol module using serial communication mode or using network communication mode
Data communication；
Time synchronization is carried out according to the preset time method of synchronization between the master agreement module and the standby protocol module.
7. a kind of communication device based on dual-computer redundancy, which is characterized in that described device is applied in master agreement module, the dress
Set includes: transmission unit and receiving unit；
The transmission unit, for communication equipment send the first request message, first request message includes described logical
Believe the device identification of equipment, the communication device works are on the communication link for the communication protocol that the master agreement module provides；
The receiving unit, the first response message sent for receiving the communication equipment, first response message include
The communication data of corresponding communication device；
The transmission unit is also used in the receiving time section that the communication protocol is arranged, if it is detected that the communication equipment
Middle there are the communication equipments of not sent first response message, then according to preset dual-computer redundancy configuration information, into second terminal
Standby protocol module send the second request message, second request message includes the communication of not sent first response message
The device identification of equipment, so that the standby protocol module sends described the to the communication equipment of not sent first response message
Two request messages, and the communication equipment for receiving not sent first response message sent according to second request message
Two response messages；Wherein, the communication device works of not sent first response message provide logical in the standby protocol module
On the communication link for believing agreement, the standby protocol module and the master agreement module communication protocol having the same；
The receiving unit is also used to receive second response message not parsed that the standby protocol module is sent, described
Second response message includes the communication data of the communication equipment of not sent first response message.
8. device as claimed in claim 7, which is characterized in that described device further includes resolution unit；
The transmission unit is also used to before standby protocol module into second terminal sends the second request message, to described standby
Protocol module sends the communication data of the communication equipment for sending the first response message；
The resolution unit, for after second response message not parsed for receiving the standby protocol module transmission,
Second response message is parsed, the communication data of the communication equipment of not sent first response message is obtained；
The transmission unit is also used to send the communication equipment of not sent first response message to the standby protocol module
Communication data.
9. a kind of electronic equipment, which is characterized in that the electronic equipment includes that processor, communication interface, memory and communication are total
Line, wherein processor, communication interface, memory complete mutual communication by communication bus；
Memory, for storing computer program；
Processor when for executing the program stored on memory, realizes any method and step of claim 1-6.
10. a kind of computer readable storage medium, which is characterized in that be stored with computer in the computer readable storage medium
Program realizes claim 1-6 any method and step when the computer program is executed by processor.
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