CN102981470B - A kind of distributed system can repair control method - Google Patents
A kind of distributed system can repair control method Download PDFInfo
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- CN102981470B CN102981470B CN201210459948.4A CN201210459948A CN102981470B CN 102981470 B CN102981470 B CN 102981470B CN 201210459948 A CN201210459948 A CN 201210459948A CN 102981470 B CN102981470 B CN 102981470B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The invention belongs to distributed system control field, special design can repair control method to the distributed system of the much higher layer multinode of reliability and safety.The present invention includes following steps: carry out setting can be repaired to connection original in distributed system, for the group node belonging to the same node control of last layer after third layer increases a redundant node; From the second layer of distributed system, each node carries out two-node cluster hot backup; At every layer, a redundant node is set; Differentiate before the main-standby nodes of dual-host backup carries out control action, when the result of calculation of main-standby nodes is consistent, host node exports; When main-standby nodes result of calculation is inconsistent, this layer of redundant node calculates, and the result of calculation of redundant node result of calculation and main-standby nodes is compared.The present invention, by repairing control method to distributed system node, can take into account rehabilitation cost while the reliability increasing distributed system control and security.
Description
Technical field
The invention belongs to distributed system control field, special design can repair control method to the distributed system of the much higher layer multinode of reliability and safety.
Background technology
Widely, reliability and the security of therefore distributed system control are particularly important in the application that distributed system controls.Current distributed system mainly adopts two-node cluster hot backup, three to get two, two to take advantage of two to get second-class structure to realize systematically safety and reliability.Dual Module Hot Spare Architecture adopts two modules for subsequent use each other to work simultaneously, if find fault, is switched to another module work; Three get two structures adopts three modules to work simultaneously, can mask a fault; Two take advantage of two to get two structures adopts dual structure, and internal layer is equivalent to logical and, and skin is for subsequent use each other.Consider from the factor of reliability and security, two take advantage of two to get two structures is better than three and gets two structures and Dual Module Hot Spare Architecture; Consider that Dual Module Hot Spare Architecture will be got two structures and two lower than three and take advantage of two to get two structures from operating cost; Especially for the distributed system of multinode, cost factor can not be ignored.Therefore a kind of repaired control method that reliability and security can be controlled cost again that can ensure is needed.
The advantage of Dual Module Hot Spare Architecture is that cost is low, and shortcoming is that reliability and security are low; Three get two structures and two takes advantage of two advantages of getting two structures to be that safety and reliability is high, and shortcoming is that cost is higher.If when system adopts the distributed system architecture of multilayer multinode, just having there is polarization in the relative merits of above three kinds of redundancy structures, therefore needs a kind of method to solve the problem.
Summary of the invention
The object of the present invention is to provide on a kind of basis ensureing safety and reliability, that effectively controls cost can repair control method for multilayer multinode distributed system.
The object of the present invention is achieved like this:
The present invention includes following steps:
(1) carry out repairing setting to connection original in distributed system, for the group node belonging to the same node control of last layer after the second layer increases a redundant node, the quantity arranging redundant node is the quantity of last layer all nodes except redundant node; ;
(2) from the second layer of distributed system, each node carries out two-node cluster hot backup;
(3) differentiate before the main-standby nodes of dual-host backup carries out control action, when the result of calculation of main-standby nodes is consistent, then differentiate do not have fault, host node exports, and carries out control action; When main-standby nodes result of calculation is inconsistent, then differentiate there is fault, this layer of redundant node is carried out, and the result of calculation of redundant node result of calculation and main-standby nodes is compared, and the node that result of calculation is identical with redundant node result of calculation is that correct node exports.
The public node of redundant node node belonging to last layer.
Beneficial effect of the present invention is: the present invention increases redundant node in systems in which can judge malfunctioning node, provide correct output, timely repair system, the quantity of redundant node is dynamically determined by the number of nodes of upper strata except redundant node, getting two structures and two compared to three takes advantage of the two fixing redundancy structures getting two structures significantly to reduce from cost, therefore, it is possible to take into account rehabilitation cost while the reliability increasing distributed system control and security.
Accompanying drawing explanation
Fig. 1 distributed system of the present invention can repair control schematic diagram;
Fig. 2 distributed system of the present invention can repair differentiation schematic flow sheet.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described further.
These embodiments of the invention propose one can repair control method for multilayer multinode distributed system, and the method not only can be repaired the node of distributed system, and can also effectively reduce cost.Require high occasion for safety and reliability, such as fire alarm system, mine safety system, train control system etc. are particularly applicable.
Do to repair connection to distributed system.With reference to figure 1, distributed system is divided into 3 layers: ground floor has 1 main control computer (node), and the second layer has n from machine (node), and third layer has m each from machine controls
iindividual control module.After machine, a redundancy is increased from machine n+1(redundant node at the second layer n-th), third layer is each from the m machine control
ia redundancy unit m is increased after individual control module
i+ 1.
Step 2, can repair control method.When node carries out before control action, the main-standby nodes of dual-host backup runs simultaneously, and differentiates result.The probability of simultaneously makeing mistakes due to the result of main-standby nodes is minimum, therefore necessarily there is correct result in main-standby nodes, and then selects correct node and operate accordingly.
Step 3, can the differentiation of restorative procedure.With reference to figure 2, when the result of calculation of main-standby nodes is consistent, host node exports; When main-standby nodes result is inconsistent, this layer of redundant node is also carried out same calculating, and by operation result respectively compared with the operation result of main-standby nodes, then the node come to the same thing with redundant node is correct result and exports.
Claims (1)
1. distributed system can repair a control method, it is characterized in that, comprises the steps:
(1) carry out repairing setting to connection original in distributed system, described distributed system is divided into 3 layers: ground floor has 1 main control computer, and the second layer has n from machine, and third layer has m each from machine controls
iindividual control module, wherein 1<=i<=n; After machine, a redundancy is increased from machine n+1, as the redundant node of the second layer at the second layer n-th; Third layer is each from the m machine control
ia redundancy unit m is increased after individual control module
i+ 1 as being somebody's turn to do from the redundant node machine control;
(2) from the second layer of distributed system, each node carries out two-node cluster hot backup;
(3) main-standby nodes of dual-host backup differentiates before control action, and when the result of calculation of main-standby nodes is consistent, then differentiate do not have fault, host node exports, and carries out control action; When main-standby nodes result of calculation is inconsistent, then differentiate there is fault, the redundant node of the second layer or the redundant node from machine controls are carried out, the result of calculation of redundant node result of calculation and main-standby nodes compared, the node that result of calculation is identical with redundant node result of calculation is that correct node exports.
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| CN201210459948.4A CN102981470B (en) | 2012-11-15 | 2012-11-15 | A kind of distributed system can repair control method |
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| CN102981470B true CN102981470B (en) | 2015-09-30 |
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| CN105743336B (en) * | 2014-12-10 | 2019-08-02 | 沈阳远大电力电子科技有限公司 | A kind of cascaded high-voltage frequency converter and its master control system |
| CN116740886B (en) * | 2023-08-10 | 2023-11-07 | 安徽中科久安新能源有限公司 | Fire disaster display alarm system and method for energy storage |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2252358Y (en) * | 1995-10-11 | 1997-04-16 | 屠锡瑜 | High-reliability multifunction automatic control device for power station |
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| CN101576836B (en) * | 2009-06-12 | 2011-02-02 | 北京航空航天大学 | Degradable three-machine redundancy fault-tolerant system |
| CN101634959B (en) * | 2009-08-21 | 2011-05-04 | 北京航空航天大学 | Dual redundant fault-tolerant system based on embedded type CPU, |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2252358Y (en) * | 1995-10-11 | 1997-04-16 | 屠锡瑜 | High-reliability multifunction automatic control device for power station |
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Address after: 510010 Guangdong city of Guangzhou province Yuexiu District Shuiyin Road No. 56 building 3 room 11D Patentee after: Guangzhou Hui Lu software technology Co., Ltd. Address before: 150001 Heilongjiang, Nangang District, Nantong street,, Harbin Engineering University, Department of Intellectual Property Office Patentee before: Harbin Engineering Univ. |
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Address after: Room 11D, Building 3, 56 Shuiyin Road, Yuexiu District, Guangzhou City, Guangdong Province Patentee after: Guangzhou children's education circle information Polytron Technologies Inc Address before: Room 11D, Building 3, 56 Shuiyin Road, Yuexiu District, Guangzhou City, Guangdong Province Patentee before: Guangzhou Hui Lu software technology Co., Ltd. |
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Denomination of invention: Distributed system recoverable control method Effective date of registration: 20181220 Granted publication date: 20150930 Pledgee: Bank of China, Limited by Share Ltd, Guangzhou, Panyu branch Pledgor: Guangzhou children's education circle information Polytron Technologies Inc Registration number: 2018440000390 |
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