CN105516292A - Hot standby method of cloud platform of intelligent substation - Google Patents
Hot standby method of cloud platform of intelligent substation Download PDFInfo
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- CN105516292A CN105516292A CN201510874846.2A CN201510874846A CN105516292A CN 105516292 A CN105516292 A CN 105516292A CN 201510874846 A CN201510874846 A CN 201510874846A CN 105516292 A CN105516292 A CN 105516292A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1001—Protocols in which an application is distributed across nodes in the network for accessing one among a plurality of replicated servers
- H04L67/1034—Reaction to server failures by a load balancer
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Abstract
The invention relates to a hot standby method of a cloud platform of an intelligent substation. A main collection server and an auxiliary collection server receive the messages sent by a collection target and finish data synchronization; when the main collection server breaks down, the subsequent messages of the main collection server are cached; the main collection server and a corresponding network channel are switched to the auxiliary collection server. According to the invention, an SDN network framework is used; a user can customize any network route and transmission rule strategy wanting to realize; the auxiliary collection server can be added in the network randomly; therefore, the method is more flexible and intelligent; in the invention, the defects in applying the traditional physical machine to the cloud platform of the intelligent substation are improved; the defects comprise wasting resource, long switching time, high failure rate, and so on. The demand of the collection server for large data volume and high instantaneity is satisfied.
Description
Technical field
The present invention relates to intelligent substation cloud field, specifically a kind of hot spare method of intelligent substation cloud platform.
Background technology
After personal computer change, the Internet are changed, cloud computing is counted as third time IT tide, is the important component part of strategy in China new industry.It by bringing life, the essence of the mode of production and business model changes, and becomes the focus that the current whole society pays close attention to.The networking of intelligent substation and the maturation development of Applications construct, for cloud computing technology application provides necessary technical conditions.Cloud computing is the product that the traditional computer such as Distributed Calculation, parallel computation, effectiveness calculating, the network storage, virtual, load balancing, hot-standby redundancy and network technical development merge, cloud computing technology framework has the characteristic superiority of high reliability, high usage, enhanced scalability, meets the intellectual technology requirement of intelligent substation advanced person, reliable, integrated, low-carbon (LC), environmental protection.
At present, cloud and domestic technology are the important technology routes of the national industrial application of information technology.Intelligent substation cloud framework can improve secondary system of intelligent substation reliability, reduces the complexity of intelligent substation device systems, improves device resource utilance, decreases number of devices, reduce energy resource consumption, investment reduction.Intelligent substation cloud framework can provide the application platform of enhanced scalability, improves the software definition ability of new opplication function, simplifies exploitation and the engineering construction of transformer station's new equipment function.
Traditional server is hot standby just carries out two-node cluster hot backup by physical machine, but intelligent substation cloud platform runs multiple stage virtual machine as different measuring points acquisition server in physical machine, when in intelligent substation cloud platform, certain acquisition server breaks down, traditional server is hot standby can only be switched to standby host by all acquisition servers in physical machine, first this method causes the waste of resource, secondly owing to running multiple stage acquisition server in physical machine, switching time and failure rate improve greatly, make a big impact to the real-time gathering service.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of hot spare method of intelligent substation cloud platform, by the network equipment by the message synchronized transmission that receives to main acquisition server and acquisition server for subsequent use, network channel is switched to normal acquisition server for subsequent use when main acquisition server goes wrong, and ensures that in handoff procedure, image data is not lost.
The technical scheme that the present invention is adopted for achieving the above object is:
A hot spare method for intelligent substation cloud platform, main acquisition server and acquisition server for subsequent use receive the message gathering target and send, and complete data syn-chronization;
When main acquisition server breaks down, buffer memory is carried out to the subsequent packet of main acquisition server, and by main acquisition server and map network passage bridge to acquisition server for subsequent use.
Described main acquisition server is one, and acquisition server for subsequent use is one or more.
Described data synchronization process is: SDN switch receives main acquisition server and acquisition server for subsequent use sends collection message, and whether judge to gather message synchronous;
If it is synchronous to gather message, then sends and gather message to collection target, otherwise by virtual machine monitoring system, acquisition server for subsequent use is calibrated;
After SDN switch receives the data message gathering target transmission, synchronized transmission gives main acquisition server and acquisition server for subsequent use.
Described main acquisition server and map network passage bridge to be comprised the following steps to acquisition server for subsequent use:
Step 1: virtual machine monitoring system obtains acquisition server current state for subsequent use corresponding to main acquisition server successively, if judge that this acquisition server current state for subsequent use is normal, then sends message to network controller, otherwise hangs up this acquisition server for subsequent use;
Step 2: network controller receives message, is switched to the acquisition server for subsequent use that this message is corresponding by network channel, and sends handover success message to virtual machine monitoring system;
Step 3: after virtual machine monitoring system acceptance to handover success message, hangs up the main acquisition server of fault, and monitors the main acquisition server after switching.
The described acquisition server for subsequent use network channel being switched to this message corresponding comprises the following steps:
Step 1: network controller analytic message, the port numbers of acquisition server for subsequent use obtaining main acquisition server and will switch;
Step 2: network controller generates stream table rule, and is issued to SDN;
Step 3: close the switch ports themselves that main acquisition server is corresponding, the switch ports themselves that switch ports themselves corresponding for acquisition server for subsequent use is corresponding with gathering target sets up switching path;
Step 4: by the main acquisition server after the message repeating of main acquisition server buffer memory to switching.
Described main acquisition server breaks down and comprises: dummy machine system running status is for hanging up or closing, and memory usage exceedes normal value, and network traffic is extremely connected disconnection with the physical machine network interface card of Microsoft Loopback Adapter bridge joint or network interface card is not loaded.
Described virtual machine monitoring system is for operating in the physical machine of virtual machine place, No. ID, the virtual machine of main acquisition server and correspondence acquisition server for subsequent use is obtained by reading configuration, and obtain the ruuning situation of dummy machine system, internal memory service condition and network communication status information, for opening and pending operation virtual machine by No. ID, virtual machine.
The present invention has following beneficial effect and advantage:
1. the present invention adopts SDN framework, user can self-defined any want to realize network route and transmission rule strategy, arbitrarily add acquisition server for subsequent use in a network, thus more flexible and intelligent.
2. the conventional physical machine that improves of the present invention is hot standby exists the shortcomings such as the wasting of resources, switching time is long, failure rate is high when being applied to intelligent substation cloud platform, and meets the demand that acquisition server data volume is large, requirement of real-time is high.
Accompanying drawing explanation
Fig. 1 is the inventive method structure chart;
Fig. 2 is virtual machine monitoring system monitoring flow chart of the present invention;
Fig. 3 is the hot standby data syn-chronization flow chart of acquisition server of the present invention;
Fig. 4 is virtual machine monitoring system failure Server switching flow chart of the present invention;
Fig. 5 is network controller failed server switching flow figure of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail.
The intelligent substation cloud platform hot-backup system that native system is made up of network controller and virtual machine monitoring system.Native system adopts SDN as Internet Transmission means, and as shown in Figure 1, SDN connects collection target, main acquisition server and multiple acquisition server for subsequent use.
Described intelligent substation cloud platform runs multiple stage virtual machine by a physical machine, and each virtual machine is an independently acquisition server.Physical machine adopts Xen virtual machine, and it develops an open source code virtual machine monitor by Cambridge University, adopts ICA agreement, obtains high-performance by accurate Intel Virtualization Technology.
Described SDN is a kind of emerging network architecture, this framework can allow network manager, under the prerequisite of not changing hardware device, with center control, by program again planning network, for net control flow provides new method, also provide the good platform of core network and application innovation.
Described network controller adopts OpenFlow agreement to carry out management able to programme to SDN, the port numbers of be connected SDN switch is obtained by obtaining main acquisition server and acquisition server physical address for subsequent use, and generate stream table rule and be issued in SDN switch, control each port switching path and packet in SDN switch and forward.By monitoring virtual machine monitoring system, obtain the running status of main acquisition server and acquisition server for subsequent use.
As shown in Figure 2, the virtual machine monitoring software that described virtual machine monitoring system adopts virtual machine DLL (dynamic link library) libvirt to write, operates in the physical machine of virtual machine place.No. id, the virtual machine of main acquisition server and correspondence acquisition server for subsequent use is obtained by reading configuration, and running situation, internal memory service condition, the network communication status information of virtual machine is obtained by No. id, and can open virtual machine, pending operation.Described dummy machine system ruuning situation is divided into operation/hang-up/closedown three kinds situation, when running status is for hanging up or closing, judges dummy machine system operation troubles.Whether described internal memory service condition exceedes normal value for obtaining dummy machine system running memory, exceedes and illustrates that dummy machine system contains unknown error risk, have potential safety hazard, judge that acquisition server is as fault.Described network communication status is the data traffic situation of virtual machine Microsoft Loopback Adapter, capture program in the very few explanation acquisition server of data traffic breaks down and does not carry out data acquisition, the excessive explanation of data traffic is likely that acquisition server recruits virus attack, and both of these case all judges acquisition server fault.Monitor the physical machine network interface card running status of Microsoft Loopback Adapter bridge joint when virtual machine runs simultaneously, if network interface card connects disconnection or network interface card is not loaded, then judge acquisition server fault.
As shown in Figure 3, described network controller obtains the packet received by switch ports themselves that main acquisition server is connected with acquisition server for subsequent use, whether synchronously judges that main acquisition server and acquisition server for subsequent use send message.If synchronous, be issued to SDN by OpenFlow protocol generation stream table rule, the switch ports themselves that switch ports themselves corresponding for main acquisition server is corresponding with gathering target sets up switching path.And the packet that switch ports themselves corresponding for collection target receives is forwarded to switch ports themselves corresponding to acquisition server for subsequent use.If asynchronous, acquisition server for subsequent use is calibrated.
As shown in Figure 4, when the main acquisition server of described virtual machine monitoring system discovery breaks down, send communication message to network controller, informing network controller carries out buffer memory to main acquisition server subsequent packet.And the acquisition server information for subsequent use of the main acquisition server information broken down and correspondence, wait for that network controller carries out the switching of acquisition server net.When after the communication message receiving the acquisition server handover success that network controller sends, hang up the acquisition server broken down, and the acquisition server after switching is monitored.
As shown in Figure 5, when described network controller receives the main acquisition server fault message of virtual machine monitoring system transmission, SDN is issued to by OpenFlow protocol generation stream table rule, close the switch ports themselves of the correspondence of main acquisition server, the switch ports themselves that switch ports themselves corresponding for the acquisition server for subsequent use switched is corresponding with gathering target sets up switching path.When after switching path handover success, by the acquisition server after the message repeating of buffer memory to switching, and send handover success message to virtual machine monitoring system.By the network equipment, the message synchronized transmission received is realized the data syn-chronization of active and standby acquisition server to main acquisition server and acquisition server for subsequent use.
Network channel is switched to normal acquisition server for subsequent use when main acquisition server goes wrong, and ensures that in handoff procedure, image data is not lost.
The described network equipment realizes data syn-chronization and comprises the following steps:
When the network equipment receives main acquisition server and acquisition server for subsequent use sends collection message, network controller judges that whether message is synchronous.If synchronous, the collection message of main acquisition server is sent to collection target by network controller net control equipment, and tackles the collection message of acquisition server for subsequent use transmission.
When the network equipment receive gather target return data message time, network controller net control equipment by data message synchronized transmission give main acquisition server and acquisition server for subsequent use.
The described network equipment realizes switch between master and slave machines and comprises the following steps:
When supervisory control system finds that main acquisition server breaks down, send information to network controller, the network channel of main acquisition server is closed by network controller net control equipment, and carries out buffer memory to the subsequent packet of main acquisition server.
Supervisory control system judges the running status of multiple acquisition server for subsequent use, and result is sent to network controller, network controller chooses the acquisition server for subsequent use of a normal operation, network channel is switched to the acquisition server for subsequent use chosen by net control equipment, and the message of buffer memory is sent to the acquisition server for subsequent use of switching.
Institute's supervisory control system of telling monitoring acquisition server comprises step:
The monitoring program of being write by virtual machine DLL (dynamic link library) judges acquisition server place virtual machine running status, obtains the running status of physical machine network interface corresponding to virtual machine network simultaneously.When virtual machine normal operation and the physical machine network interface of correspondence is normal time, then think acquisition server normal operation.And acquisition state is sent to network controller by message.
Described network controller net control equipment following steps:
By OpenFlow agreement, management able to programme is carried out to SDN, the port numbers of be connected SDN switch is obtained by reading main acquisition server and acquisition server physical address for subsequent use, and generate stream table rule and be issued in SDN switch, control each port switching path and packet in SDN switch and forward.
Claims (7)
1. a hot spare method for intelligent substation cloud platform, is characterized in that: main acquisition server and acquisition server for subsequent use receive the message gathering target and send, and complete data syn-chronization;
When main acquisition server breaks down, buffer memory is carried out to the subsequent packet of main acquisition server, and by main acquisition server and map network passage bridge to acquisition server for subsequent use.
2. the hot spare method of intelligent substation cloud platform according to claim 1, it is characterized in that: described main acquisition server is one, acquisition server for subsequent use is one or more.
3. the hot spare method of intelligent substation cloud platform according to claim 1, is characterized in that: described data synchronization process is: SDN switch receives main acquisition server and acquisition server for subsequent use sends collection message, and whether judge to gather message synchronous;
If it is synchronous to gather message, then sends and gather message to collection target, otherwise by virtual machine monitoring system, acquisition server for subsequent use is calibrated;
After SDN switch receives the data message gathering target transmission, synchronized transmission gives main acquisition server and acquisition server for subsequent use.
4. the hot spare method of intelligent substation cloud platform according to claim 1, is characterized in that: describedly main acquisition server and map network passage bridge are comprised the following steps to acquisition server for subsequent use:
Step 1: virtual machine monitoring system obtains acquisition server current state for subsequent use corresponding to main acquisition server successively, if judge that this acquisition server current state for subsequent use is normal, then sends message to network controller, otherwise hangs up this acquisition server for subsequent use;
Step 2: network controller receives message, is switched to the acquisition server for subsequent use that this message is corresponding by network channel, and sends handover success message to virtual machine monitoring system;
Step 3: after virtual machine monitoring system acceptance to handover success message, hangs up the main acquisition server of fault, and monitors the main acquisition server after switching.
5. the hot spare method of intelligent substation cloud platform according to claim 4, is characterized in that: the described acquisition server for subsequent use network channel being switched to this message corresponding comprises the following steps:
Step 1: network controller analytic message, the port numbers of acquisition server for subsequent use obtaining main acquisition server and will switch;
Step 2: network controller generates stream table rule, and is issued to SDN;
Step 3: close the switch ports themselves that main acquisition server is corresponding, the switch ports themselves that switch ports themselves corresponding for acquisition server for subsequent use is corresponding with gathering target sets up switching path;
Step 4: by the main acquisition server after the message repeating of main acquisition server buffer memory to switching.
6. the hot spare method of intelligent substation cloud platform according to claim 1, it is characterized in that: described main acquisition server breaks down and comprises: dummy machine system running status is for hanging up or closing, memory usage exceedes normal value, and network traffic is extremely connected disconnection with the physical machine network interface card of Microsoft Loopback Adapter bridge joint or network interface card is not loaded.
7. the hot spare method of the intelligent substation cloud platform according to claim 3 or 4, it is characterized in that: described virtual machine monitoring system is for operating in the physical machine of virtual machine place, No. ID, the virtual machine of main acquisition server and correspondence acquisition server for subsequent use is obtained by reading configuration, and obtain the ruuning situation of dummy machine system, internal memory service condition and network communication status information, for opening and pending operation virtual machine by No. ID, virtual machine.
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| CN106027311A (en) * | 2016-06-24 | 2016-10-12 | 江苏省未来网络创新研究院 | SDN-based disaster recovery system and data disaster recovery method thereof |
| CN108415797A (en) * | 2018-03-05 | 2018-08-17 | 山东超越数控电子股份有限公司 | A method of avoid server failure switching according to library loss of data |
| CN108900544A (en) * | 2018-08-13 | 2018-11-27 | 武汉思普崚技术有限公司 | Active and standby fire wall setting method and device |
| CN110119129A (en) * | 2019-05-10 | 2019-08-13 | 上海新联合电气有限公司 | Industrial control network |
| CN110347652A (en) * | 2019-07-12 | 2019-10-18 | 天津凯发电气股份有限公司 | A kind of Power quality management system multimachine database synchronization implementation method |
| CN110635928A (en) * | 2018-06-21 | 2019-12-31 | 中兴通讯股份有限公司 | Control method, control device and computer storage medium |
| CN111064770A (en) * | 2019-11-12 | 2020-04-24 | 国网辽宁省电力有限公司信息通信分公司 | Method and system for capturing and synchronizing data bypass of power grid system |
| CN112202594A (en) * | 2020-09-07 | 2021-01-08 | 核电运行研究(上海)有限公司 | Nuclear power station server fault emergency processing system and method |
| CN115065589A (en) * | 2022-06-06 | 2022-09-16 | 广州汇智通信技术有限公司 | Data traffic acquisition disaster recovery backup processing method, device, equipment, system and medium |
| CN115277377A (en) * | 2022-05-19 | 2022-11-01 | 亿点云计算(珠海)有限公司 | Service acquisition method, device, terminal and storage medium based on distributed cloud |
| CN115550227A (en) * | 2022-09-02 | 2022-12-30 | 中盈优创资讯科技有限公司 | Service flow collection and monitoring guarantee method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106027311A (en) * | 2016-06-24 | 2016-10-12 | 江苏省未来网络创新研究院 | SDN-based disaster recovery system and data disaster recovery method thereof |
| CN108415797A (en) * | 2018-03-05 | 2018-08-17 | 山东超越数控电子股份有限公司 | A method of avoid server failure switching according to library loss of data |
| CN110635928B (en) * | 2018-06-21 | 2022-09-30 | 中兴通讯股份有限公司 | Control method, control device and computer storage medium |
| CN110635928A (en) * | 2018-06-21 | 2019-12-31 | 中兴通讯股份有限公司 | Control method, control device and computer storage medium |
| CN108900544A (en) * | 2018-08-13 | 2018-11-27 | 武汉思普崚技术有限公司 | Active and standby fire wall setting method and device |
| CN110119129A (en) * | 2019-05-10 | 2019-08-13 | 上海新联合电气有限公司 | Industrial control network |
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| CN111064770B (en) * | 2019-11-12 | 2021-11-05 | 国网辽宁省电力有限公司信息通信分公司 | Method and system for capturing and synchronizing data bypass of power grid system |
| CN111064770A (en) * | 2019-11-12 | 2020-04-24 | 国网辽宁省电力有限公司信息通信分公司 | Method and system for capturing and synchronizing data bypass of power grid system |
| CN112202594A (en) * | 2020-09-07 | 2021-01-08 | 核电运行研究(上海)有限公司 | Nuclear power station server fault emergency processing system and method |
| CN115277377A (en) * | 2022-05-19 | 2022-11-01 | 亿点云计算(珠海)有限公司 | Service acquisition method, device, terminal and storage medium based on distributed cloud |
| CN115065589A (en) * | 2022-06-06 | 2022-09-16 | 广州汇智通信技术有限公司 | Data traffic acquisition disaster recovery backup processing method, device, equipment, system and medium |
| CN115550227A (en) * | 2022-09-02 | 2022-12-30 | 中盈优创资讯科技有限公司 | Service flow collection and monitoring guarantee method |
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