CN105337803B - A kind of loop system connection parallel off detection method - Google Patents
A kind of loop system connection parallel off detection method Download PDFInfo
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- CN105337803B CN105337803B CN201510802689.4A CN201510802689A CN105337803B CN 105337803 B CN105337803 B CN 105337803B CN 201510802689 A CN201510802689 A CN 201510802689A CN 105337803 B CN105337803 B CN 105337803B
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- electrical equipment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0805—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability
- H04L43/0811—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability by checking connectivity
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- Environmental & Geological Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
- Hardware Redundancy (AREA)
Abstract
The present invention provides a kind of connection parallel off detection method of loop system, includes the following steps：Step S1：A wherein electrical equipment is in real time detected the every connection node of itself, receives and stores the exception information of 1 electrical equipment connection node of N；Step S2：Judge whether this electrical equipment connection node is abnormal, if abnormal, enters step S3, otherwise return to step S1；Step S3：The exception information of itself connection node is sent respectively to system 1 electrical equipment of other N by this electrical equipment；Step S4：Judge whether this electrical equipment connection abnormal nodes number is equal to 2, if so, cracking phenomenon occurs in system, otherwise enters step S5；Step S5：Judge that this electrical equipment stores whether the sum of other 1 electrical equipment connection abnormal nodes number of N are more than or equal to 3, if then system cracks, otherwise return to step S1.This method energy accurate judgement loop system connection whether parallel off.
Description
Technical field
The present invention relates to a kind of connection parallel off detection methods of loop system.
Background technology
The loop system of UPS is reliability at present, and the connection of system parallel connection is using annular connection such as Fig. 1.And every
UPS will have two connections to be connected with external other UPS.
The detection that goes offline of traditional connection carries out every connection the detection of one I/O signal.It is detected out when a certain
It is just protected when existing two connection failures.In two machine parallel connections, two UPS can normally determine system and go offline the method
Parallel off and protected.When system has more than 2 UPS parallel connections, the method can not allow each correct system that determines to be led to
Interrogate the connection of line.
As in Figure 2-4, each system and each machine communication line abnormal conditions can be listed as follows
If depending merely on the parallel off that the connection exception number oneself detected carries out judgement system, it will occur in system every
The case where UPS judges is different, leads to not be uniformly controlled switch logic.
Invention content
In view of the deficiencies of the prior art, the present invention proposes a kind of connection parallel off detection method of loop system.
The present invention is realized using following technical scheme：A kind of connection parallel off detection method of loop system, feature exist
In：Include the following steps:Step S0：A loop system is provided, the loop system is N platforms electrical equipment by communicating wire loop
The system that shape connects into, wherein N are the natural number more than or equal to 3；Step S1：Wherein an electrical equipment is in real time to the every of itself
Connection node is detected, and receives and stores the exception information of other N-1 platforms electrical equipment connection nodes；Step S2：
Judge whether this electrical equipment connection node is abnormal, if abnormal, enters step S3, otherwise return to step S1；Step S3：
The exception information of itself connection node is sent respectively to the other N-1 platforms electrical equipments of system by this electrical equipment；Step S4：
Judge whether this electrical equipment connection abnormal nodes number is equal to 2, if so, cracking phenomenon occurs in system, otherwise enters step
Rapid S5；Step S5：Judge that this electrical equipment stores whether the sum of other N-1 platforms electrical equipment connection abnormal nodes numbers are more than
Equal to 3, if then system cracks, otherwise return to step S1.
In an embodiment of the present invention, this electrical equipment is logical by connection reception N-1 platform electrical equipments in step S1
Interrogate the exception information of line node；This electrical equipment is divided the exception information of itself connection node by connection in step S3
It is not sent to the other N-1 platforms electrical equipments of system.
In an embodiment of the present invention, the electrical equipment is UPS.Further, the N is 3.
Further, the connection is CAN bus.
Compared with prior art, beneficial effects of the present invention are：
（1）The present invention can accurately judge loop system connection whether parallel off；
（2）Accurately faster it is uniformly controlled switch logic；
（3）Improve the reliability of loop system control logic.
Description of the drawings
Fig. 1 is loop system schematic diagram；
Fig. 2 is two machine loop system parallel off schematic diagrams；
Fig. 3 is three machine loop system parallel off schematic diagrams；
Fig. 4 is four machine loop system parallel off schematic diagrams；
Fig. 5 is a kind of loop system connection parallel off detection method flow chart of the present invention.
Specific implementation mode
The present invention will be further described with reference to the accompanying drawings and embodiments.
The present invention provides a kind of connection parallel off detection method of loop system, and this approach includes the following steps:
Step S0：A loop system is provided, the loop system is what N platforms electrical equipment was connected by communicating wire loop
System, wherein N are the natural number more than or equal to 3,
Step S1：A wherein electrical equipment is in real time detected the every connection node of itself, receives and stores
The exception information of other N-1 platforms electrical equipment connection nodes；
Step S2：Judge whether this electrical equipment connection node is abnormal, if abnormal, enter step S3, otherwise returns
Return step S1；
Step S3：The exception information of itself connection node is sent respectively to the other N-1 platforms of system by this electrical equipment
Electrical equipment；
Step S4：Judge whether this electrical equipment connection abnormal nodes number is equal to 2, if so, system cracks
Otherwise phenomenon enters step S5；
Step S5：Judge whether this electrical equipment stores the sum of other N-1 platforms electrical equipment connection abnormal nodes numbers
More than or equal to 3, if then system cracks, otherwise return to step S1.
Particular flow sheet is referring to Fig. 5.
In an embodiment of the present invention, this electrical equipment is logical by connection reception N-1 platform electrical equipments in step S1
Interrogate the exception information of line node；In step S3 this platform electrical equipment by connection by the exception information of itself connection node
It is sent respectively to the other N-1 platforms electrical equipments of system.
It should be noted that in patent of the present invention, the communication modes between electrical equipment are not limited to the communication side of CAN bus
Formula.Other communication modes can also be used as needed in an actual embodiment.
In one embodiment of the invention：
A kind of connection parallel off detection method of loop system, the loop system are the loop system that 3 UPS are formed,
Include the following steps：
Step S1：A wherein UPS is in real time detected the every CAN bus node of itself, is received by CAN bus
And store the exception information of other two UPSCAN bus nodes；
Step S2：Judge whether this UPSCAN bus nodes are abnormal, if abnormal, enter step S3, otherwise return to step
Rapid S1；
Step S3：This UPS by CAN bus by the exception information of own CAN-bus node be sent respectively to system its
Its two UPS；
Step S4：Judge whether this UPSCAN bus abnormal nodes number is equal to 2, if so, there is cracking phenomenon in system,
Otherwise S5 is entered step；
Step S5：Judge whether the sum of other two electrical equipments CAN bus abnormal nodes numbers of this UPS storages are more than
In 3, if then system cracks, otherwise return to step S1.
It should be noted that the loop system is not limited to 3 UPS annular parallel connections, can be the UPS more than or equal to 3
It is annular in parallel.
Every UPS will be attached detection to the every CAN bus node of oneself in system, and timing is total by CAN
The exception information of CAN bus is sent to the other UPS of system by line；Every UPS can be received by CAN bus in system
Other UPSCAN buses exception informations.Every UPS will establish a table and carry out other UPSCAN buses exception feelings in storage system
Condition, and information update exception information table by receiving in real time；And CAN bus malfunctioning node in real-time statistics current system
Number, according to malfunctioning node number in system come judge loop system whether parallel off.Because every CAN bus of system all will there are two section
Point is detected each node, therefore two abnormal nodes will be generated when a connection failure, and loop system parallel off refers to
Be that system two independent sectors occurs and can not communicate, therefore at least two CAN bus are abnormal at least generates 4 abnormal sections
Point.But due to after parallel off independent two parts can not communicate and lead to not count on all abnormal nodes information,
Each autonomous system statistics accumulation is to 3 abnormal nodes.
To sum up, mainly there are two bases for estimation for method of discrimination of the invention：1. an electrical equipment（UPS）There are two detecting
It is considered system parallel off when connection node exception；2. if the electrical equipment（UPS）There is no Conditions 1, but accumulation system
In there are more than two nodes to occur abnormal then thinking system parallel off.
Various system parallel off discriminatory analysis as in Figure 2-4 are as follows：
Two machine systems：System, which can be determined, according to 1 two UPS of basis for estimation parallel off occurs.
Three machine systems：
1, work as connection（CAN bus）When failure, due to the also non-parallel off of system, all UPS can positive normal open
News therefore all UPS can detect system, and there are two connections（CAN bus）Node breaks down；
2, work as connection（CAN bus）When breaking down again, UPS3 oneself detects two node exceptions and system is tired
Product will determine that system parallel off extremely there are three node；It will determine that new malfunctioning node for UPS2, and accumulate and be
There is exception there are three node and also will determine that system parallel off in system；Due to UPS2 and UPS1 can also normal communication, so
UPS1 can also receive UPS2 and newly generate a node abnormal accumulation system there are three node exception, determine system and solved
It splits.Whole system can determine system parallel off in the short time and be uniformly controlled switch logic in this way.
The various parallel off forms of multi-computer system can also be judged by the method, and in system every UPS judgement
It is all consistent, is easily able to unified switch logic.
It should be noted that connection is not limited to CAN bus.
In conclusion above-listed preferred embodiment provided by the invention, carries out the object, technical solutions and advantages of the present invention
It is further described, it should be understood that the foregoing is merely illustrative of the preferred embodiments of the present invention, not limiting
The present invention, all within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in this
Within the protection domain of invention.
Claims (5)
1. a kind of loop system connection parallel off detection method, it is characterised in that：
Include the following steps：
Step S0：A loop system is provided, the loop system is that N platforms electrical equipment is by what communication wire loop connected into
System, wherein N are the natural number more than or equal to 3；
Step S1：A wherein electrical equipment is in real time detected the every connection node of itself, receives and stores other
The exception information of N-1 platform electrical equipment connection nodes；
Step S2：Judge whether this electrical equipment connection node is abnormal, if abnormal, enters step S3, otherwise returns to step
Rapid S1；
Step S3：It is electrical that the exception information of itself connection node is sent respectively to the other N-1 platforms of system by this electrical equipment
Equipment；
Step S4：Judge whether this electrical equipment connection abnormal nodes number is equal to 2, if so, there is cracking phenomenon in system,
Otherwise S5 is entered step；
Step S5：Judge that this electrical equipment stores whether the sum of other N-1 platforms electrical equipment connection abnormal nodes numbers are more than
Or it is equal to 3, if then system cracks, otherwise return to step S1.
2. loop system connection parallel off detection method according to claim 1, it is characterised in that：This electricity in step S1
Gas equipment receives the exception information of N-1 platform electrical equipment connection nodes by connection；
In step S3 this electrical equipment by connection by the exception information of itself connection node be sent respectively to system its
Its N-1 platform electrical equipment.
3. loop system connection parallel off detection method according to claim 1, it is characterised in that：The electrical equipment is
UPS。
4. loop system connection parallel off detection method according to claim 3, it is characterised in that：The N is 3.
5. loop system connection parallel off detection method according to claim 1,2,3 or 4, it is characterised in that：It is described logical
News line is CAN bus.
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| CN201510802689.4A CN105337803B (en) | 2015-11-19 | 2015-11-19 | A kind of loop system connection parallel off detection method |
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| CN201510802689.4A CN105337803B (en) | 2015-11-19 | 2015-11-19 | A kind of loop system connection parallel off detection method |
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| CN105337803A CN105337803A (en) | 2016-02-17 |
| CN105337803B true CN105337803B (en) | 2018-07-20 |
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| CN113300909B (en) * | 2021-04-30 | 2022-11-11 | 科华数据股份有限公司 | Parallel operation UPS communication abnormity detection method and device and parallel operation UPS system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101964738A (en) * | 2010-08-14 | 2011-02-02 | 东方电气集团东方汽轮机有限公司 | Communication system for wind power station |
| CN104486186A (en) * | 2014-12-30 | 2015-04-01 | 北京汽车股份有限公司 | CAN bus network architecture system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1130853A1 (en) * | 2000-02-29 | 2001-09-05 | Siemens Aktiengesellschaft | Circuit arrangement for changeover to standby of transmission installations in ring architectures with MPLS-packets |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101964738A (en) * | 2010-08-14 | 2011-02-02 | 东方电气集团东方汽轮机有限公司 | Communication system for wind power station |
| CN104486186A (en) * | 2014-12-30 | 2015-04-01 | 北京汽车股份有限公司 | CAN bus network architecture system |
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Effective date of registration: 20211012 Address after: 363000 No. 11, Jinxing Road, Xiangcheng District, Zhangzhou City, Fujian Province Patentee after: Zhangzhou Kehua Electric Technology Co.,Ltd. Address before: 363000 Zhangzhou Kehua Technology Co., Ltd., Beidou Industrial Park, Jinfeng Industrial Zone, Zhangzhou City, Fujian Province Patentee before: ZHANGZHOU KEHUA TECHNOLOGY Co.,Ltd. |