CN101700782B - BAS control system of urban railway system and method thereof - Google Patents
BAS control system of urban railway system and method thereof Download PDFInfo
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- CN101700782B CN101700782B CN200910198767.9A CN200910198767A CN101700782B CN 101700782 B CN101700782 B CN 101700782B CN 200910198767 A CN200910198767 A CN 200910198767A CN 101700782 B CN101700782 B CN 101700782B
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Abstract
Present invention is disclosed a kind of BAS control system of urban railway system and method thereof, its system comprises: station level comprehensive monitoring system network and BAS field level networks, described station level comprehensive monitoring system network is provided with redundancy dispatching module, described BAS field level networks is double loop network structure, comprise at least two redundant PLCs and redundancy dispatching module, described redundant PLC is divided into primary PLC and PLC for subsequent use, station level comprehensive monitoring system network is connected to by looped network, described redundancy dispatching module detects communications status, PLC for subsequent use is switched to this, whether the communication that its method is detected between station level comprehensive monitoring system network and primary PLC by described redundancy dispatching module is interrupted, if, then PLC for subsequent use is switched to primary PLC by described redundancy dispatching module, the present invention is conducive to lowering BAS system Construction cost, reduce the difficulty of the integrated BAS subsystem of ISCS, any single node failure all can ensure controlled plant and pattern uninterrupted, undisturbed ground automatically switches and runs.
Description
Technical field
The present invention relates to communication control system, particularly a kind of BAS control system of urban railway system.
Background technology
In order to improve operation management level further, a kind of trend that comprehensive monitoring system (hereinafter referred to as ISCS) has become Development of underground railway is set, and environment and equipment monitoring system (hereinafter referred to as BAS) the most important component part that is ISCS.According to subway characteristic, A, B two ends all arrange PLC, gather the electromechanical appliance information at A, B two ends respectively, and the PLC at A, B two ends is interconnected by the mode of network or bus and accessed ISCS network, no matter adopt which kind of mode to access, all need stable, the reliability service of the system that takes into full account.
According to the different building mode of BAS system, its redundant means adopted also is not quite similar, two-stage double loop network structure is a kind of common BAS system redundancy building mode, wherein two-stage refers to station level ISCS network and BAS field level networks, and what dicyclo referred to that BAS field level networks adopts is double loop network structure.
Adopt the BAS system of two-stage double loop network structure, there is following characteristic:
Adopt by ring Web switch by BAS information access ISCS, then any one end PLC breaks down, and all can not affect ISCS and monitor other end BAS equipment, substantially increase the reliability of system.
Because A end, B hold PLC to be in peer-to-peer, do not need, by wherein one end PLC, information is forwarded to other end PLC, which decrease the complexity of performance requriements to primary PLC and program.
Be in and looped network appoints single node fault, can not the performance of influential system.
But based on the BAS system of two-stage double loop network structure, owing to being the intercommunication that ISCS exchange realizes between two BAS looped networks, there is certain redundancy blind area in this redundant fashion, therefore we have proposed and improve BAS looped network redundancy scheme by software approach, this method is in existing hardware configuration base, by developing and implanting software application, realize the redundancy actualizing technology of BAS system under two-stage double loop network structure.
See Fig. 1, the PLC of PLC and the IBP dish of A end, B end is formed a double loop network structure by industrial switch, forms BAS device context looped network, BAS device context looped network is by the exchange access station level ISCS network on looped network.This based on the BAS System's composition under two-stage double loop network structure, continue to form a dual-ring network structure see Fig. 1, A end, B end, IBP dish PLC by exchange, two BAS looped networks respectively have a netting twine to be connected respectively to two ISCS exchangees:
Due to two exchange intercommunications of ISCS, if increase a direct coupled link again by between two BAS looped networks, then can form the LOOP of two layers, if this LOOP unreasonable allocation, then can cause the broadcast storm of two layers, so generally do not consider two BAS looped network direct interconnection, but realize the intercommunication between two BAS looped networks by ISCS exchange.Because the communication between two looped networks is realized by station ISCS exchange, and each BAS ring, adopt a road network line to be connected to ISCS exchange.Therefore no matter close which chassis station ISCS exchange, all can cause can not communication mutually between two BAS looped networks.During due to station real-time server collection redundant PLC data message, only gather primary plc data, so this redundant fashion exists the blind area of following redundancy:
No matter close which chassis station ISCS exchange, all can cause can not communication mutually between two BAS looped networks.If the exchange connecting primary PLC place looped network is closed, then ISCS cannot read the data message of this end PLC.
If looped network occurs binode fault cause ring Web switch cannot with ISCS switch communication, then ISCS cannot read in the plc data information on this looped network.
Although the problems referred to above, can by increasing the mode of hardware, namely each PLC configures two pieces of ethernet nics, access looped network 1 and looped network 2 respectively, but this mode can greatly increase BAS system Construction cost, and for ISCS, there are 4 passages with redundant PLC, need comprehensive descision to adopt the data of any bar link, considerably increase the complexity of ISCS scheduling.
Conventional the also having in this field at present: IBP dish is also known as integrated backup panel, be placed on subway station Comprehensive Control indoor, IBP dish is made up of IBP panel, PLC (BAS specialty provides), man-machine interface terminal (other specialty provides and installs), monitoring bench board.When occurring station on-shift operator device server or man-machine interface breaking down AT STATION, by IBP dish, contingency management is carried out to this station; Or in case of emergency button, key switch etc. on direct control IBP dish, adopt manpower intervention mode to carry out the long-range single action operation of operational mode operation and some equipment.The control signal input IBP dish PLC sent.The remote control commands of coordinated signals instruction and some equipment is sent by PLC.In addition, PLC is connected with FAS alarm controller by communication interface, receives the Fire Mode instruction that FAS alarm controller directly transmits, and by Fire Mode message transport to on-the-spot redundant PLC and BAS workstation.IBP dish is arranged emergency control button, status indicator lamp etc., emergent monitoring is carried out to visual plant.Its control hierarchy is higher than each Dynamic System station.
In view of this, this area contriver, for the problems referred to above, have developed a kind of redundancy based on BAS system under two-stage double loop network structure.
Summary of the invention
The object of the invention is to, a kind of BAS control system of urban railway system and method thereof are provided, overcome the difficulty of prior art, reach the system that whole BAS can be made to become real full redundancy, any single node failure all can ensure controlled plant and pattern is uninterrupted, automatically switch undisturbed and run and object with low cost.
The present invention adopts following technical scheme:
A kind of BAS control system of urban railway system of the present invention, comprise station level comprehensive monitoring system network and BAS field level networks, described station level comprehensive monitoring system network is provided with redundancy dispatching module, described BAS field level networks is double loop network structure, comprise at least two redundant PLCs and redundancy dispatching module, described redundant PLC is divided into primary PLC and PLC for subsequent use, described primary PLC connects the exchange that is arranged on described looped network, described PLC for subsequent use connects the exchange that is arranged on looped network described in another, two BAS looped networks respectively have a netting twine to be connected respectively to station level comprehensive monitoring system network,
Described redundancy dispatching module detects the communications status between station level comprehensive monitoring system network and primary PLC, between station level comprehensive monitoring system network and primary PLC during communicating interrupt, is switched to PLC for subsequent use.
Further, described station level comprehensive monitoring system network also comprises two connected comprehensive monitoring system exchangees, and one group of looped network of described BAS looped network is provided with an exchange, connects a described comprehensive monitoring system exchange by netting twine; Another group looped network of described BAS looped network is provided with another exchange, connects another described comprehensive monitoring system exchange by netting twine.
Further, described station level comprehensive monitoring system network also comprises a station real-time server, connects two described comprehensive monitoring system exchangees respectively.
Further, described BAS field level networks also comprises an integrated backup panel PLC, connects on BAS looped network respectively, exchange described in be connected with comprehensive monitoring system exchange two.
Further, described redundant PLC is separately positioned on the two ends of subway.
A kind of urban track traffic BAS control method of the present invention, adopts above-mentioned BAS control system of urban railway system, comprises the following steps:
1) BAS control system of urban railway system running, station level comprehensive monitoring system network reads BAS facility information by one group of looped network;
2) whether the communication that described redundancy dispatching module detects between station level comprehensive monitoring system network and primary PLC is interrupted, and if so, then performs step 3), if not, then perform step 1);
3) PLC for subsequent use is switched to primary PLC by described redundancy dispatching module, and station level comprehensive monitoring system network reads BAS facility information by another group looped network.
Owing to have employed above-mentioned technology, the present invention compared with prior art, has following characteristics:
1) in the redundancy actualizing technology of the present invention's BAS system under based on two-stage double loop network structure, abandon the mode by increasing hardware, propose software mode and improve redundancy actualizing technology, be conducive to lowering BAS system Construction cost, reduce the difficulty of the integrated BAS subsystem of ISCS.
2) the present invention is by this redundancy, makes whole BAS become the system of real full redundancy, and any single node failure all can ensure controlled plant and pattern is uninterrupted, operation of automatically switching undisturbed.
The present invention is further illustrated below in conjunction with drawings and Examples.
Accompanying drawing explanation
Fig. 1 is the structural representation of the BAS control system of urban railway system of prior art;
Fig. 2 is the structural representation of BAS control system of urban railway system of the present invention;
Fig. 3 is the diagram of circuit of urban track traffic BAS control method of the present invention.
Detailed description of the invention
Below by Fig. 2 to 3, introduce a kind of specific embodiment of the present invention.
A kind of BAS control system of urban railway system of the present invention, comprise station level comprehensive monitoring system network and BAS field level networks, described station level comprehensive monitoring system network is provided with redundancy dispatching module, described BAS field level networks is double loop network structure, comprise at least two redundant PLCs and redundancy dispatching module, described redundant PLC is divided into primary PLC and PLC for subsequent use, described primary PLC connects the exchange that is arranged on described looped network, described PLC for subsequent use connects the exchange that is arranged on looped network described in another, two BAS looped networks respectively have a netting twine to be connected respectively to station level comprehensive monitoring system network,
Described redundancy dispatching module detects the communications status between station level comprehensive monitoring system network and primary PLC, between station level comprehensive monitoring system network and primary PLC during communicating interrupt, is switched to PLC for subsequent use.
Described station level comprehensive monitoring system network also comprises two connected comprehensive monitoring system exchangees, and one group of looped network of described BAS looped network is provided with an exchange, connects a described comprehensive monitoring system exchange by netting twine; Another group looped network of described BAS looped network is provided with another exchange, connects another described comprehensive monitoring system exchange by netting twine.
Described station level comprehensive monitoring system network also comprises a station real-time server, connects two described comprehensive monitoring system exchangees respectively.
Described BAS field level networks also comprises an integrated backup panel PLC, connects on BAS looped network respectively, exchange described in be connected with comprehensive monitoring system exchange two.
Described redundant PLC is separately positioned on the two ends of subway.
As shown in Figure 2, in the present embodiment, two redundant PLCs are respectively A and hold redundant PLC and B to hold redundant PLC,
Suppose in the present embodiment: A holds the primary PLC of redundant PLC to be PLC1, PLC for subsequent use is that PLC2, B hold the primary PLC of redundant PLC to be PLC3, and PLC for subsequent use is PLC4.Primary PLC1 connects the exchange 1 on looped network 1, and PLC2 for subsequent use connects the exchange 2 on looped network 2, and primary PLC3 connects the exchange 3 on looped network 1, and PLC4 for subsequent use connects the exchange 4 on looped network 2.Exchange 6 on looped network 1 and the exchange 5 on looped network 2 are connected comprehensive monitoring system exchange 8 and the comprehensive monitoring system exchange 7 of car station level network respectively.Integrated backup panel PLC connects exchange 5 and exchange 6 respectively.
As shown in Figure 3, the present invention also provides a kind of urban track traffic BAS control method, comprises the following steps:
1) BAS control system of urban railway system running, station level comprehensive monitoring system network reads BAS facility information by looped network;
2) whether the communication that described redundancy dispatching module detects between station level comprehensive monitoring system network and primary PLC is interrupted, and if so, then performs step 3), if not, then perform step 1);
3) PLC for subsequent use is switched to primary PLC by described redundancy dispatching module, and station level comprehensive monitoring system network reads BAS facility information by another group looped network.
The present invention improves BAS looped network redundancy scheme by software approach, this method is in existing hardware configuration base, by developing and implanting software application, realize the redundancy actualizing technology of BAS system under two-stage double loop network structure, by being arranged on the redundancy dispatching module in station real-time server and PLC respectively, after redundancy dispatching module detects the communication disruption of station real-time server and primary PLC, automatically carry out active and standby PLC switching.By this redundancy dispatching module, the redundancy blind area in following existing scheme can be solved, hold redundant PLC for A, suppose that current primary PLC is PLC1:
The station real-time server of ISCS is then monitored A held BAS facility information by the exchange 6 on the exchange 8 of ISCS and looped network 1, exchange 1, if close exchange 8, then station real-time server cannot have access to exchange 1, also just cannot access the information in PLC1.
If binode fault appears in looped network 1, now station real-time server cannot have access to PLC1 by looped network 1.
In above-mentioned two situations, exchange 1 owing to connecting PLC1 in old scheme normally works, and A holds redundant PLC any failure message not detected, PLC2 can not be cut to primary PLC, PLC1 is still primary PLC, then station server can be caused cannot to read A and hold BAS facility information.And in new departure, add redundancy dispatching module, this module is after communication disruption station real-time server and primary PLC being detected, automatically PLC2 is cut to primary PLC, such station real-time server then can pass through looped network 2, read A and hold BAS facility information, the degree of redundancy of the system greatly improved, guarantees that any single node failure all can ensure controlled plant and pattern is uninterrupted, operation of automatically switching undisturbed.
Chengdu Metro Line 1 comprehensive monitoring system employs the present invention, on the basis not increasing existing hardware cost investment, by BAS system redundancy scheme under the perfect existing two-stage double loop network structure of software mode, make whole BAS become the system of real full redundancy, any single node failure all can ensure that controlled plant and pattern are uninterrupted, automatically switch operation undisturbed.
In summary, the present invention compared with prior art, has following characteristics:
1) under based on two-stage double loop network structure BAS system redundancy actualizing technology in, abandon the mode by increasing hardware, propose software mode and improve redundancy actualizing technology, be conducive to lowering BAS system Construction cost, reduce the difficulty of the integrated BAS subsystem of ISCS.
2) by this redundancy, make whole BAS become the system of real full redundancy, any single node failure all can ensure that controlled plant and pattern are uninterrupted, automatically switch operation undisturbed.
Above-described embodiment is only for illustration of technological thought of the present invention and feature, its object is to enable those skilled in the art understand content of the present invention and implement according to this, only can not limit the scope of the claims of the present invention with the present embodiment, namely all equal changes of doing according to disclosed spirit or modification, still drop in the scope of the claims of the present invention.
Claims (6)
1. a BAS control system of urban railway system, it is characterized in that: comprise station level comprehensive monitoring system network and BAS field level networks, described station level comprehensive monitoring system network is provided with redundancy dispatching module, described BAS field level networks is double loop network structure, comprise at least two redundant PLCs and redundancy dispatching module, described redundant PLC is divided into primary PLC and PLC for subsequent use, described primary PLC connects the exchange that is arranged on described looped network, described PLC for subsequent use connects the exchange that is arranged on looped network described in another, two BAS looped networks respectively have a netting twine to be connected respectively to station level comprehensive monitoring system network,
Described redundancy dispatching module detects the communications status between station level comprehensive monitoring system network and primary PLC, between station level comprehensive monitoring system network and primary PLC during communicating interrupt, is switched to PLC for subsequent use.
2. BAS control system of urban railway system according to claim 1, it is characterized in that: described station level comprehensive monitoring system network also comprises two connected comprehensive monitoring system exchangees, one group of looped network of described BAS looped network is provided with an exchange, connects a described comprehensive monitoring system exchange by netting twine; Another group looped network of described BAS looped network is provided with another exchange, connects another described comprehensive monitoring system exchange by netting twine.
3. BAS control system of urban railway system according to claim 2, is characterized in that: described station level comprehensive monitoring system network also comprises a station real-time server, connects two described comprehensive monitoring system exchangees respectively.
4. BAS control system of urban railway system according to claim 3, is characterized in that: described BAS field level networks also comprises an integrated backup panel PLC, connects on BAS looped network respectively, exchange described in be connected with comprehensive monitoring system exchange two.
5. BAS control system of urban railway system according to claim 4, is characterized in that: described redundant PLC is separately positioned on the two ends of subway.
6. a urban track traffic BAS control method, adopts as the BAS control system of urban railway system in claim 1-5 as described in any one, it is characterized in that, comprise the following steps:
1) BAS control system of urban railway system running, station level comprehensive monitoring system network reads BAS facility information by looped network;
2) whether the communication that described redundancy dispatching module detects between station level comprehensive monitoring system network and primary PLC is interrupted, and if so, then performs step 3), if not, then perform step 1);
3) PLC for subsequent use is switched to primary PLC by described redundancy dispatching module, and station level comprehensive monitoring system network reads BAS facility information by another group looped network.
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| CN101958821A (en) * | 2010-10-29 | 2011-01-26 | 国电南瑞科技股份有限公司 | Transregional double ring network topology of electric power dispatch automation system |
| CN102050139B (en) * | 2010-11-24 | 2012-09-12 | 国电南瑞科技股份有限公司 | Method for comprehensively monitoring BAS (Building Automation System) schedule functions |
| CN102231073B (en) * | 2011-05-30 | 2013-12-11 | 北京和利时系统工程有限公司 | Network redundancy communication method, apparatus and system thereof |
| CN103065392B (en) * | 2012-12-16 | 2015-03-11 | 四川久远新方向智能科技有限公司 | Rail transit semi-automatic ticket selling machine system |
| CN104238533B (en) * | 2014-10-17 | 2017-01-18 | 成都四为电子信息股份有限公司 | Railway station building electromechanical device monitoring system |
| CN106476853B (en) * | 2016-09-18 | 2019-01-22 | 安徽德诺科技股份公司 | A kind of urban track traffic low-voltage equipment safety monitoring system |
| CN108725521B (en) * | 2018-08-08 | 2024-01-23 | 卡斯柯信号有限公司 | Hot standby redundancy management system and method for main and standby control centers of rail transit |
| CN110324577A (en) * | 2019-06-03 | 2019-10-11 | 安徽兴博远实信息科技有限公司 | Visual scheduling method and system |
| CN112379611B (en) * | 2019-10-22 | 2021-10-15 | 北京城建智控科技有限公司 | Environment monitoring control equipment |
| CN110955947B (en) * | 2019-11-26 | 2023-08-08 | 宝信软件(成都)有限公司 | Topology coloring method and system for urban rail transit power |
| CN113495522B (en) * | 2020-03-19 | 2022-12-13 | 南京南瑞继保电气有限公司 | Method and device for determining on-duty state of PLC in environment and equipment monitoring system |
| CN113037845B (en) * | 2021-03-17 | 2022-05-27 | 青岛海信网络科技股份有限公司 | Cloud platform architecture system and operation mode switching method, device, equipment and medium |
| CN113691770B (en) * | 2021-07-19 | 2024-09-20 | 河南辉煌城轨科技有限公司 | Integrated contact net visual grounding system of comprehensive monitoring system |
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