CN108365926A - A kind of novel redundant system - Google Patents
A kind of novel redundant system Download PDFInfo
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- CN108365926A CN108365926A CN201810045248.8A CN201810045248A CN108365926A CN 108365926 A CN108365926 A CN 108365926A CN 201810045248 A CN201810045248 A CN 201810045248A CN 108365926 A CN108365926 A CN 108365926A
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- mainframe
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- 238000004891 communication Methods 0.000 claims abstract description 45
- 230000005540 biological transmission Effects 0.000 claims abstract description 28
- 239000013307 optical fiber Substances 0.000 claims description 7
- 238000005516 engineering process Methods 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 125000004122 cyclic group Chemical group 0.000 claims description 3
- 238000000034 method Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/22—Arrangements for detecting or preventing errors in the information received using redundant apparatus to increase reliability
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- Computer Networks & Wireless Communication (AREA)
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Abstract
The invention discloses a kind of novel redundant systems, including mainframe and from rack, further include bottom transmission channel and application layer protocol, the bottom transmission channel is made of PCIe link and optic communication links, the mainframe and data transmission is realized by optic communication links between rack, data transmission is realized by PCIe link between the mainframe and controller and redundant module from machine frame inside, the real-time redundance between two embedded controllers is realized by using the high-speed link channel of bottom, different transmission mediums is spanned in bottom, and since the communication efficiency of its application protocol is high, it can realize the full data field redundancy between embedded controller.
Description
Technical field
The present invention relates to redundancy field, specially a kind of novel redundant system.
Background technology
In industrial control system, embedded controller is in occupation of core status, as field application is to control system
Safety, reliability requirement step up, and also proposed new requirement in stability to embedded controller, and redundant system is
To increase the reliability of system, and take the design of two sets or two sets or more identical, relatively independent configurations.
Control system on the market has been realized in the function of redundancy backup at present, but is limited to redundant data performance
Constraint, it is most of to be the redundancy of single controller and and be not implemented totally according to the redundancy in area.
Invention content
In order to overcome the shortcomings of prior art, the present invention provides a kind of novel redundant system, by using bottom
The real-time redundance between two embedded controllers is realized in high-speed link channel, and spanning different transmission in bottom is situated between
Matter, and since the communication efficiency of its application protocol is high, can realize the full data field redundancy between embedded controller, it can be effective
Solve the problems, such as background technology propose.
The technical solution adopted by the present invention to solve the technical problems is：
A kind of novel redundant system, including mainframe and from rack, further include bottom transmission channel and application layer protocol, institute
It states bottom transmission channel to be made of PCIe link and optic communication links, the mainframe and from passing through fiber optic communication between rack
Link realizes data transmission, is realized by PCIe link between the mainframe and controller and redundant module from machine frame inside
Data transmission.
Further, communication conversion can be added between the mainframe or controller and redundant module from machine frame inside
Module.
Further, the optic communication links can connect optical fiber conversion equipment and realize long distance transmission.
Further, the data communications method based on the application layer protocol is as follows：
Core data is packaged with the frame format of security protocol inside step 100, the controller in mainframe
It obtains Data1, then frame head, postamble is added with the communication format of PCIe, obtain data Data2, and by PCIe link by Data2
The redundant module being transmitted in mainframe；
After redundant module in step 200, mainframe receives Data2, the frame head of PCIe link and postamble are removed, obtained
Frame head, postamble are added with the communication format of optic communication links again to Data1, then by Data1, obtain Data3, and pass through optical fiber
Communication link is to the redundant module from rack；
Step 300, after the redundant module of rack receives Data3, the frame head of optic communication links and postamble are removed,
Data1 is obtained, then frame head, postamble are added with the communication format of PCIe link, obtains Data4, and be transmitted to the control from rack
Device；
Data1 is carried out frame decoding by step 400 from the controller of rack with the format of security protocol, obtains core data.
Further, the core data only has the source communicated and destination that can just be read and write, in other transmission processes
In any change is not done to this partial data.
Further, further include using sequence number, timestamp, source address and destination address, cyclic redundancy check code technology
Defence application layer protocol is existing respectively repeats, deletes, is inserted into, reorders, damages and postpones six kinds of threats.
Further, the application layer protocol is using the secure communication association for meeting IEC 61784-3 and EN50159 standards
View.
Compared with prior art, the beneficial effects of the invention are as follows：
The present invention realizes that the real time data between two embedded controllers is superfluous by using the high-speed link channel of bottom
It is remaining, different transmission medium (PCIe link and optic communication links) is spanned in bottom, and due to the communication of its application protocol
Ultrahigh in efficiency can realize the full data field redundancy between embedded controller.
Description of the drawings
Fig. 1 is the overall structure block diagram of the present invention；
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1, the present invention provides a kind of novel redundant system, including mainframe and from rack, further include bottom
Transmission channel and application layer protocol, the bottom transmission channel are made of PCIe link and optic communication links, the mainframe
With between rack data transmission, the mainframe and the controller from machine frame inside and redundancy are realized by optic communication links
Data transmission is realized by PCIe link between module.
The combination of transmitted mode for using PCIe link (in individual system)+optic communication links (between redundant system), makes
It obtains this agreement and has the scalability in individual system, the convenience of the configuration between redundant system.
PCIe link in present embodiment has PCIe link, realization can be facilitated to extend, in controller module and redundancy
Other types of module (such as other types of communication transfer interface module) can be added in intermodule.
Optic communication links ensure that the high-speed transfer of entire redundant link in present embodiment, and can be converted by optical fiber
Equipment realizes long distance transmission, to realize the flexibility that two racks are physically laid out.
Application layer protocol (application layer protocol) defines the application operated on different end systems
How program process mutually transmits message, in the present invention, composition of the application layer protocol in the transmission data in each stage, core
How data are transmitted in the whole process described in following data communications method.
Data communications method based on the application layer protocol is as follows：
By mainframe to for from rack transmission data：
Step 1: by core data (CoreData) with the frame lattice of security protocol inside the controller module A of mainframe
Formula (i.e. the safe frame of Fig. 1) packages, and obtains Data1；
Step 2: frame head, postamble is added (i.e. in Fig. 1 with the communication format of PCIe link again in Data1 by controller module A
PCIe frame heads and PCIe postambles), obtain Data2；
Step 3: transmitting Data2 on PCIe link；
Step 4: after redundant module A receives Data2, the frame head of PCIe link and postamble are removed, Data1 is obtained；
Step 5: frame head, postamble (i.e. Fig. 1 is added with the communication format of optic communication links again in Data1 by redundant module A
In optical fiber frame head and optical fiber postamble), obtain Data3；
Step 6: transmitting Data3 on optical fiber link；
Step 7: after redundant module B receives Data3, the frame head of optic communication links and postamble are removed, Data1 is obtained；
Step 8: frame head, postamble is added with the communication format of PCIe link again in Data1 by redundant module B, Data4 is obtained；
Step 9: transmitting Data4 on PCIe link；
Step 10: after controller module B receives Data4, the frame head of PCIe link and postamble are removed, Data1 is obtained；
Step 11: Data1 is carried out frame decoding by controller module B with the format of security protocol, core data is obtained
(CoreData)。
In the present embodiment, there is the packet header packet tail of oneself, the number delivered upwards on different communication links
By this part packet header, packet tail is parsed and is deleted in.
In the present embodiment, core data only has the source communicated and destination that can just be read and write, and is transmitted across other
Cheng Zhongjun does not do any change to this partial data.
In the present embodiment, the application layer protocol is logical using the safety for meeting IEC 61784-3 and EN50159 standards
Believe agreement.
For the safety of application layer protocol, we substantially take following measure：
(1) sequence number (SN), timestamp (TS), source address and destination address (SA＆DA), cyclic redundancy check code are used
(CRC) technology defends following 6 kinds of threats respectively：
It repeats, delete, be inserted into, reorder, damage, postpone.
The protection that safe floor provides is as shown in table 1 below：
1 threat of table/Defense Matrix
(2) Secure protocol message formats are as follows：
2 security message format of table
3 security message format of table is explained in detail
The present invention has following characteristics：
(1) diversity in redundant link channel；
As a result of the technology that transmission channel is isolated with upper-layer protocol, this scheme may span across 2 kinds of physical channels at present, and
Has stronger expandability.
2) high efficiency of redundancy application layer protocol；
The payload of communication protocol has been fully considered designing application layer protocol, therefore can realize that efficient data are received
Hair.
3) safety of redundancy application layer protocol；
Application layer protocol is used in the secure communication protocols for meeting IEC 61784-3 and EN50159 standards, can prevent a variety of
Communication threaten.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Profit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent requirements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
Claims (7)
1. a kind of novel redundant system, including mainframe and from rack, it is characterised in that：Further include bottom transmission channel and application
Layer protocol, the bottom transmission channel are made of PCIe link and optic communication links, the mainframe and between rack lead to
It crosses optic communication links and realizes data transmission, pass through between the mainframe and controller and redundant module from machine frame inside
PCIe link realizes data transmission.
2. a kind of novel redundant system according to claim 1, it is characterised in that：In the mainframe or from machine frame inside
Controller and redundant module between communication transfer interface module can be added.
3. a kind of novel redundant system according to claim 1, it is characterised in that：The optic communication links can connect light
Fine conversion equipment realizes long distance transmission.
4. a kind of novel redundant system according to claim 1, it is characterised in that：Data based on the application layer protocol
Communication means is as follows：
Core data is packaged to obtain with the frame format of security protocol inside step 100, the controller in mainframe
Data1, then frame head, postamble are added with the communication format of PCIe, data Data2 is obtained, and Data2 is transmitted by PCIe link
Redundant module in mainframe；
After redundant module in step 200, mainframe receives Data2, the frame head of PCIe link and postamble are removed, obtained
Data1, then frame head, postamble is added with the communication format of optic communication links again in Data1, Data3 is obtained, and logical by optical fiber
Believe link transmission to the redundant module from rack；
Step 300, after the redundant module of rack receives Data3, the frame head of optic communication links and postamble are removed, obtained
Data1, then frame head, postamble are added with the communication format of PCIe link, Data4 is obtained, and be transmitted to the controller from rack；
Data1 is carried out frame decoding by step 400 from the controller of rack with the format of security protocol, obtains core data.
5. a kind of novel redundant system according to claim 4, it is characterised in that：The core data only has the source communicated
End and destination can just be read and write, and any change is not done to this partial data in other transmission processes.
6. a kind of novel redundant system according to claim 4, it is characterised in that：Further include using sequence number, timestamp,
Source address and destination address, cyclic redundancy check code technology defend application layer protocol is existing repeat, delete, being inserted into, again respectively
Six kinds of sequence, damage and delay threats.
7. a kind of novel redundant system according to claim 4, it is characterised in that：The application layer protocol, which uses, to be met
The secure communication protocols of IEC 61784-3 and EN50159 standards.
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| CN201810045248.8A CN108365926A (en) | 2018-01-17 | 2018-01-17 | A kind of novel redundant system |
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| CN201810045248.8A CN108365926A (en) | 2018-01-17 | 2018-01-17 | A kind of novel redundant system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110798480A (en) * | 2019-11-07 | 2020-02-14 | 杭州和利时自动化有限公司 | Data communication method and system between safety instrument systems |
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| CN104780019A (en) * | 2014-12-03 | 2015-07-15 | 中国航天科工集团第三研究院第八三五七研究所 | Method for storing optical fiber communication data |
| US20160019136A1 (en) * | 2010-09-28 | 2016-01-21 | Intelligent Intellectual Property Holdings 2 Llc | Non-volatile memory interface |
| CN106300300A (en) * | 2016-10-11 | 2017-01-04 | 南京南瑞继保电气有限公司 | A kind of redundancy communication method for DC control and protection system |
| CN206249296U (en) * | 2016-09-30 | 2017-06-13 | 浙江宇视科技有限公司 | A kind of dual control storage server |
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- 2018-01-17 CN CN201810045248.8A patent/CN108365926A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103080917A (en) * | 2010-06-18 | 2013-05-01 | Lsi公司 | Scalable storage devices |
| US20160019136A1 (en) * | 2010-09-28 | 2016-01-21 | Intelligent Intellectual Property Holdings 2 Llc | Non-volatile memory interface |
| CN103699461A (en) * | 2013-11-27 | 2014-04-02 | 北京机械设备研究所 | Double-host machine mutual redundancy hot backup method |
| CN104780019A (en) * | 2014-12-03 | 2015-07-15 | 中国航天科工集团第三研究院第八三五七研究所 | Method for storing optical fiber communication data |
| CN206249296U (en) * | 2016-09-30 | 2017-06-13 | 浙江宇视科技有限公司 | A kind of dual control storage server |
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| CN110798480B (en) * | 2019-11-07 | 2022-02-01 | 杭州和利时自动化有限公司 | Data communication method and system between safety instrument systems |
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Effective date of registration: 20181122 Address after: Room 210-668, 2nd floor, 003 Chuangyuan Road, 750, Ningbo High-tech Zone, Zhejiang Province, 315000 Applicant after: Ningbo and Lishi Intelligent Technology Co., Ltd. Applicant after: Beijing Helishi Intelligent Technology Co Ltd Address before: 100176 Floor 5 510-1515, No. 1 Building, No. 2 Courtyard, Dishengzhong Road, Daxing District Economic and Technological Development Zone, Beijing Applicant before: Beijing Helishi Intelligent Technology Co Ltd |
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Effective date of registration: 20210319 Address after: 100176 Floor 5 510-1515, No. 1 Building, No. 2 Courtyard, Dishengzhong Road, Daxing District Economic and Technological Development Zone, Beijing Applicant after: BEIJING HOLLYSYS AUTOMATION & DRIVE Co.,Ltd. Address before: Room 210-668, 2nd floor, 003 Chuangyuan Road, 750, Ningbo High-tech Zone, Zhejiang Province, 315000 Applicant before: NINGBO HELISHI INTELLIGENT TECHNOLOGY Co.,Ltd. Applicant before: BEIJING HOLLYSYS AUTOMATION & DRIVE Co.,Ltd. |
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