CN110147081A - A kind of scattered control system and its control method, computer readable storage medium - Google Patents
A kind of scattered control system and its control method, computer readable storage medium Download PDFInfo
- Publication number
- CN110147081A CN110147081A CN201910406708.XA CN201910406708A CN110147081A CN 110147081 A CN110147081 A CN 110147081A CN 201910406708 A CN201910406708 A CN 201910406708A CN 110147081 A CN110147081 A CN 110147081A
- Authority
- CN
- China
- Prior art keywords
- decentralized processing
- processing unit
- spare
- dpu
- logic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM]
- G05B19/41845—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM] characterised by system universality, reconfigurability, modularity
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/33—Director till display
- G05B2219/33273—DCS distributed, decentralised controlsystem, multiprocessor
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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]
Abstract
A kind of scattered control system and its control method, computer readable storage medium, the scattered control system includes: that multiple decentralized processing units, IO communication network and bus communication module, the decentralized processing unit are connected to IO communication network, the bus communication module is connected to IO communication network, the bus communication module is connected to I/O module by IO bus, in which: the multiple decentralized processing unit is mutually redundant；The bus communication module is used for, and establishes connection by IO communication network and decentralized processing unit, and, it will be sent after the data conversion that IO communication network receives by IO bus, and, IO communication network will be sent to after the data conversion that IO bus receives.Scheme provided in this embodiment, reduces costs, and improves system availability.
Description
Technical field
Present document relates to industrial control technology, espespecially a kind of scattered control system and its control method, computer-readable storage
Medium.
Background technique
Common control system of the DCS (Distributed Control System, scattered control system) as industrial circle
System, is widely used in industries such as thermoelectricity, nuclear power, chemical industry.Since production technology complexity, the operating condition of thermoelectricity, nuclear power, chemical industry become
Change rapid, risk height, DCS product must assure that the high availability of itself, it is desirable that the failure of any appliance will not be right in DCS
The allomeric function of DCS impacts.
In order to guarantee the high availability of system, the important equipment in DCS generallys use redundant configuration, especially DPU
(Distributed Processing Unit, decentralized processing unit) generallys use dual redundant or more Redundancy Designs.One group of redundancy
DPU would generally be attached with one or more IO (Input Output, input and output) module, thus data acquisition with
Instruction is sent.It is attached between DPU and I/O module by IO bus.
The technology has the disadvantages that
It is at high cost.In order to ensure high availability, DCS product can at least configure dual redundant DPU, the hardware cost of DPU equipment
It is higher, cause DCS product overall price high.
System availability is limited.Even with dual redundant configuration, the DPU being mutually redundant when two while breaking down
When, it still will cause the unavailable of system, jeopardize production safety.Therefore in the safety level DCS of nuclear power plant, it will usually again with three
The mode of redundancy even four redundancies promotes availability, and which further improves DCS cost.
System function design is limited.Since DCS uses the deployment way of multiple groups redundancy DPU+IO module, DCS system is being carried out
When system design, need to be assigned to associated production equipment as far as possible under one group of redundancy DPU, it is logical between DPU to avoid to greatest extent
News.This work usually requires to pay a large amount of manpowers.
Summary of the invention
This application provides a kind of scattered control system and its control methods, computer readable storage medium, reduce cost,
Improve system availability.
One embodiment of the invention provides a kind of scattered control system, comprising: multiple decentralized processing units, IO communication network
It is connected to IO communication network with bus communication module, the decentralized processing unit, the bus communication module is connected to IO communication
Network, the bus communication module are connected to I/O module by IO bus, in which:
The multiple decentralized processing unit is mutually redundant；
The bus communication module is used for, and establishes connection by IO communication network and decentralized processing unit, and, it will be from IO
It is sent after the data conversion that communication network receives by IO bus, and, it will be sent out after the data conversion that IO bus receives
It is sent to IO communication network.
In one embodiment, the decentralized processing unit is used for, and stand-by state is entered after starting, when the decentralised control system
When the work decentralized processing unit of system is unsatisfactory for the requirement of the logic decentralized processing unit list of configuration, from logic dispersion place
The one or more groups of monitor tasks not executed are selected in reason unit list, it is corresponding by selected monitor task is self-marked as
Logic decentralized processing unit, be switched to work decentralized processing unit, wherein include in the logic decentralized processing unit list
Monitor task and corresponding logic decentralized processing unit.
In one embodiment, the decentralized processing unit is also used to, and into after stand-by state, receives the spare dispersion of broadcast
The tail of the queue of the spare decentralized processing cell queue is added in processing unit queue, alternatively, spare decentralized processing unit is not present
When queue, creates spare decentralized processing cell queue and oneself will be placed in the first place of the spare decentralized processing cell queue, with
And spare decentralized processing cell queue is sent by broadcast mode；When local spare decentralized processing is not received in preset time
When the spare decentralized processing cell queue of the spare decentralized processing cell broadcast in cell queue, from spare decentralized processing unit team
The decentralized processing unit is deleted in column, and, after being switched to work decentralized processing unit, spare decentralized processing unit of going off the air
Queue；
The decentralized processing unit for being switched to work decentralized processing unit is positioned at the spare decentralized processing unit team
The first decentralized processing unit of column.
In one embodiment, the decentralized processing unit is also used to, when as work decentralized processing unit, described in broadcast
Logic decentralized processing unit representated by decentralized processing unit；
The work decentralized processing unit of the scattered control system is unsatisfactory for the logic decentralized processing unit list of configuration
Require to include: it is corresponding that all monitor tasks in the logic decentralized processing unit list are not detected in the decentralized processing unit
Logic decentralized processing unit.
It in one embodiment, further include man-machine interactive interface, the man-machine interactive interface is used for, and is distributed for monitor task
Logic decentralized processing unit distributes bus communication module for the logic decentralized processing unit, generates comprising monitor task and right
The logic decentralized processing unit list is handed down to point by the logic decentralized processing unit list for the logic decentralized processing unit answered
Dissipate processing unit.
In one embodiment, the man-machine interactive interface is also used to, at the spare dispersion in the scattered control system
When managing element number less than secure threshold, alarm.
A present invention at least embodiment provides a kind of scattered control system control method, applied to described in any embodiment
Scattered control system, comprising:
Enter stand-by state after decentralized processing unit starting；
When the work decentralized processing unit of the scattered control system is unsatisfactory for the logic decentralized processing unit list of configuration
Requirement when, the decentralized processing unit selects do not executed one group or more from the logic decentralized processing unit list
Group monitor task will be self-marked as the selected corresponding logic decentralized processing unit of monitor task, be switched at work dispersion
Manage unit.
In one embodiment, after the decentralized processing unit enters stand-by state, further includes:
The spare decentralized processing cell queue of broadcast is received, the tail of the queue of the spare decentralized processing cell queue is added, or
Person creates spare decentralized processing cell queue and described standby by oneself being placed in when spare decentralized processing cell queue is not present
With the first place of decentralized processing cell queue；Spare decentralized processing cell queue is sent by broadcast mode；When in preset time not
Receive the spare decentralized processing cell queue of the spare decentralized processing cell broadcast in local spare decentralized processing cell queue
When, the decentralized processing unit is deleted from spare decentralized processing cell queue；
And after being switched to work decentralized processing unit, spare decentralized processing cell queue of going off the air；
The decentralized processing unit for being switched to work decentralized processing unit is positioned at the spare decentralized processing unit team
The first decentralized processing unit of column.
In one embodiment, the method also includes, after the decentralized processing unit is switched to work decentralized processing unit,
Broadcast logic decentralized processing unit representated by the decentralized processing unit；
The work decentralized processing unit of the scattered control system is unsatisfactory for the logic decentralized processing unit list of configuration
Require to include: it is corresponding that all monitor tasks in the logic decentralized processing unit list are not detected in the decentralized processing unit
Logic decentralized processing unit.
One embodiment of the invention provides a kind of computer readable storage medium, and the computer-readable recording medium storage has
One or more program, one or more of programs can be executed by one or more processor, to realize any reality
Apply scattered control system control method described in example.
Compared with the relevant technologies, scattered control system provided by the present application, including multiple decentralized processing units, IO communication network
Network and bus communication module, the decentralized processing unit are connected to IO communication network, and it is logical that the bus communication module is connected to IO
Network is interrogated, the bus communication module is connected to I/O module by IO bus, in which: the multiple decentralized processing unit is superfluous each other
It is remaining；The bus communication module is used for, and establishes connection by IO communication network and decentralized processing unit, and, it will be communicated from IO
It is sent after the data conversion that network receives by IO bus, and, it will be sent to after the data conversion that IO bus receives
IO communication network.Scheme provided in this embodiment, reduces costs, and improves system availability.
Other features and advantage will illustrate in the following description, also, partly become from specification
It obtains it is clear that being understood and implementing the application.Other advantages of the application can be by specification, claims
And scheme described in attached drawing is achieved and obtained.
Detailed description of the invention
Attached drawing is used to provide the understanding to technical scheme, and constitutes part of specification, with the application's
Embodiment is used to explain the technical solution of the application together, does not constitute the limitation to technical scheme.
Fig. 1 is the scattered control system schematic diagram that one embodiment of the invention provides；
Fig. 2 is the scattered control system control method flow chart that one embodiment of the application provides.
Fig. 3 is the decentralized processing unit block diagram that one embodiment of the application provides；
Fig. 4 is the computer readable storage medium block diagram that one embodiment of the application provides.
Specific embodiment
This application describes multiple embodiments, but the description is exemplary, rather than restrictive, and for this
It is readily apparent that can have more in the range of embodiments described herein includes for the those of ordinary skill in field
More embodiments and implementation.Although many possible feature combinations are shown in the attached drawings, and in a specific embodiment
It is discussed, but many other combinations of disclosed feature are also possible.Unless the feelings specially limited
Other than condition, any feature or element of any embodiment can be with any other features or element knot in any other embodiment
It closes and uses, or any other feature or the element in any other embodiment can be substituted.
The application includes and contemplates the combination with feature known to persons of ordinary skill in the art and element.The application is
It can also combine with any general characteristics or element through disclosed embodiment, feature and element, be defined by the claims with being formed
Unique scheme of the invention.Any feature or element of any embodiment can also be with features or member from other scheme of the invention
Part combination, to form the unique scheme of the invention that another is defined by the claims.It will thus be appreciated that showing in this application
Out and/or any feature of discussion can be realized individually or in any suitable combination.Therefore, in addition to according to appended right
It is required that and its other than the limitation done of equivalent replacement, embodiment is not limited.Furthermore, it is possible in the guarantor of appended claims
It carry out various modifications and changes in shield range.
In addition, method and/or process may be rendered as spy by specification when describing representative embodiment
Fixed step sequence.However, in the degree of this method or process independent of the particular order of step described herein, this method
Or process should not necessarily be limited by the step of particular order.As one of ordinary skill in the art will appreciate, other steps is suitable
Sequence is also possible.Therefore, the particular order of step described in specification is not necessarily to be construed as limitations on claims.This
Outside, the claim for this method and/or process should not necessarily be limited by the step of executing them in the order written, art technology
Personnel are it can be readily appreciated that these can sequentially change, and still remain in the spirit and scope of the embodiment of the present application.
The communication modes between a kind of I/O module and DPU are proposed in the embodiment of the present invention, and the redundancy scheme of DPU is carried out
Brand-new design.Increase IO communication network between DPU and I/O module.Wherein, which does not refer in particular to Ethernet,
Refer to communication network.Increase bus communication module between IO bus and IO communication network, to complete IO bus to IO communication network
The protocol conversion of network.All bus communication module accesses IO communication network, and whole DPU access IO communication network.IO communication network
On any DPU can establish communication connection with any bus communication module.DPU no longer presses a group realization redundancy, but DCS is added
The DPU of system is relatively redundancy, and non-one-to-one or one-to-many mode carries out redundancy, corresponding any operative DPU, in system
Spare DPU can be used as its spare DPU, and the monitor task of work DPU is taken over when working DPU exception.That is the redundancy side of n+m
Formula, i.e. n platform DPU are in running order, and m platform DPU is in stand-by state.In running order DPU is known as the DPU that works, and is in
The DPU of stand-by state is known as spare DPU.
As shown in Figure 1, one embodiment of the invention provides a kind of scattered control system, comprising: multiple DPU11, IO communication networks
Network 12 and bus communication module 13, the DPU11 are connected to IO communication network 12, and it is logical that the bus communication module 13 is connected to IO
Network 12 is interrogated, the bus communication module 13 connects 14 by IO bus and is connected to I/O module 15, in which:
The multiple DPU11 is mutually redundant；
The bus communication module 13 is used for, and establishes connection by IO communication network 12 and DPU11, and, it will lead to from IO
It is sent after the data conversion that news network 12 receives by IO bus 14, and, the data conversion that will be received from IO bus 14
After be sent to IO communication network 12.
Scheme provided in this embodiment, reduces costs, and without one-to-one or one-to-many carry out redundant configuration, use is multipair
It is more, for example, " Single Point of Faliure " of DCS can be met as long as m is greater than 1 by using the configuration of DPU, m spare DPU of n work
Availability requirement.As long as m can reduce the physics DPU quantity of whole system less than n, from before guaranteeing that DCS availability is constant
Put reduction overall cost.In addition, improving availability.It, can be standby by increasing if necessary to the overall usability of lifting system
With the quantity (m) of DPU, the rapid promotion of Lai Shixian system availability, without using triple redundance, four redundancy schemes.System tray
Structure is flexible.Under new framework, the communication between DPU and bus communication module is that flexibly, DPU can flexibly be obtained according to configuration
The information of I/O module, without energy is dropped in matching for DPU and I/O module in system design stage.
Wherein, the multiple DPU11, which is mutually redundant, means, should to any of multiple DPU11 work DPU
Spare DPU in multiple DPU11 can be used as the spare DPU of work DPU, when working DPU failure, by spare DPU
One take over work DPU.
Wherein, bus communication module 13 can be one or more, and each bus communication module 13 connects one or more
I/O module 14.
Wherein, any DPU can establish connection by IO communication network 12 and any bus communication module 13.
It in one embodiment, further include that man-machine interactive interface (MMI) 16, MMI16 is connected to by DCS core network 17
DPU11, in which:
The MMI16 is used for, and distributes logic DPU for monitor task, distributes bus communication module for the logic DPU, raw
At logic DPU list, the logic DPU list is handed down to DPU.
MMI distributes monitor task to logic DPU, and distributes one or more bus communication modules for logic DPU, establishes
Logic DPU list, by logic DPU list configuration to each DPU.Logic DPU herein is not that physics DPU is patrolled in the process of running
Collecting DPU can be served as by any physics DPU.It wherein, include that monitor task and monitor task are corresponding in logic DPU list
Logic DPU (may also include the bus communication module for distributing to logic DPU).It can be during initialization by logic DPU list
It is configured to each DPU.
In one embodiment, the DPU11 is used for, and stand-by state is entered after starting, when the work of the scattered control system
When being unsatisfactory for the requirement of the logic DPU list of configuration as DPU, one group not be performed in the logic DPU list or more is selected
Group monitor task will be self-marked as the selected corresponding logic DPU of monitor task, be switched to work DPU.Wherein, one group of prison
Control task may include one or more monitor tasks.
In one embodiment, the DPU11 is also used to, and into after stand-by state, receives the spare DPU decentralized processing of broadcast
The tail of the queue of the spare DPU queue is added in cell queue, alternatively, creating spare DPU queue when spare DPU queue is not present
And the first place that oneself will be placed in the spare DPU queue；Into after stand-by state, the spare DPU is sent by broadcast mode
Queue, and, after being switched to work DPU, spare DPU queue of going off the air；Safeguard a spare DPU queue；Spare DPU team
It is classified as ordered queue.DPU after actuation, scans existing spare DPU in network, receives the spare DPU team of other DPU broadcast
Column, and the end that oneself will be arranged in spare DPU queue.When not finding other spare DPU, spare DPU queue is created, and will
Oneself it is placed on that the spare DPU queue is the first, when not receiving the standby of the spare DPU broadcast in spare DPU queue in preset time
When with DPU queue, the spare DPU is deleted from spare DPU queue.For example, including three spare DPU (DPU1, DPU2, DPU3)
Spare DPU queue, if do not received in preset time DPU3 broadcast spare DPU queue, deleted from spare DPU queue
Except DPU3.Preset time can be set as needed.The DPU for being switched to work DPU is positioned at the spare DPU queue
The first DPU.I.e. the first DPU is switched to work DPU when in need.Specifically, first standby in spare DPU queue
With DPU, whether the work DPU in continuous observation network meets the requirement of logic DPU list, and if the requirements are not met, then from patrolling
It collects DPU list and obtains the monitor task not executed, and be the acquired corresponding logic of monitor task by setting themselves
DPU, broadcasting the information that itself is logic DPU, (work DPU, which can also be broadcasted, executes the resulting monitored results of monitor task, the monitoring
As a result it is sent to MMI), the DPU is switched to work DPU at this time, oneself is deleted from spare DPU queue, is gone off the air spare
DPU queue.After spare DPU is cut to work DPU, the spare DPU queue of broadcast transmission will not continue to, and be off and send spare DPU
Queue.Other spare DPU do not receive the spare DPU queue of DPU transmission within a preset time, by it from spare DPU queue
It deletes；Alternatively, no longer there is spare DPU queue in system.
Correspondingly, going off the air, it is spare to send when abnormal (offline, power-off etc.) occurs in the DPU in spare DPU queue
DPU queue, other DPU also will be adjusted and be updated to spare DPU queue based on this.
It should be noted that the effect of spare DPU queue is the sequencing that the spare DPU of instruction is switched to work DPU, when
When having work DPU failure or initially getting monitor task, arranges preceding spare DPU and be first switched to work DPU, arrange posterior standby
It (it is of course also possible to which arranging posterior spare DPU is first switched to work DPU, is arranged preceding spare with work DPU is switched to after DPU
DPU is first switched to work DPU, appoints).In other embodiments, spare DPU queue can not also be generated, it is passed through
His mode determines that spare DPU is switched to the sequencing of work DPU, for example determines which spare DPU to be switched to work by by MMI
DPU, alternatively, determining which spare DPU is switched to work DPU according to certain parameters of spare DPU, for example, according to spare DPU's
Mark determines transfer sequence, alternatively, being known using all dehorns, the spare DPU of configuration switching mark switches first, and switching finishes
Afterwards, switching mark is sent to another spare DPU, etc., the application is not construed as limiting this.
In one embodiment, the DPU11 is also used to, and when as work DPU, broadcasts decentralized processing unit institute's generation
The logic DPU of table；
The work DPU of the scattered control system is unsatisfactory for requiring to include for the logic DPU list of configuration: the DPU is not
Detect the corresponding logic DPU of all monitor tasks in the logic DPU list.That is after DCS system is added in DPU, pass through reception
It broadcasts the message and determines whether the monitor task in logic DPU is performed, if there is (this is not detected in the monitor task not being performed
The corresponding logic DPU of monitor task), then one or more groups of monitor tasks not being performed are chosen, selected monitor task is executed.
Citing is illustrated below.
Assuming that there is 3 groups of monitor tasks, totally 5 DPU in system are followed successively by DPU1 to DPU5 in spare DPU queue.
When initial, all monitor tasks are not performed, then first DPU (DPU1) of spare DPU queue is not detected
Logic DPU gets first group of monitor task, oneself will be set as the corresponding logic DPU of first group of monitor task, is switched to work
DPU deletes oneself from spare DPU queue, and broadcasting itself is the corresponding logic DPU of first group of monitor task, spare DPU team
Second DPU (DPU2) of column becomes the first.
DPU2 detects that first group of monitor task has been performed and (detects the corresponding logic DPU of first group of monitor task, i.e.,
DPU1), then second group of monitor task is chosen, the corresponding logic DPU of second group of monitor task oneself will be set as, be switched to work
DPU deletes oneself from spare DPU queue, and broadcasting itself is the corresponding logic DPU of second group of monitor task, spare DPU team
The third DPU (DPU3) of column becomes the first.
DPU3 is detected, and is detected that first group of monitor task and second group of monitor task have been performed, is then chosen third
Group monitor task, oneself will be set as the corresponding logic DPU of third group monitor task, is switched to work DPU, by oneself from spare
DPU queue is deleted, and broadcasts itself as the corresponding logic DPU of third group monitor task, the 4th DPU of spare DPU queue
(DPU4) become the first.
DPU4 is detected, when any of DPU1, DPU2, DPU3 occur abnormal, DPU4 substitution DPU1, DPU2,
DPU3 executes corresponding monitor task, oneself is deleted from spare DPU queue, and it is corresponding for corresponding monitor task to broadcast itself
Logic DPU, the 5th DPU (DPU5) of spare DPU queue become the first.Abnormal DPU rejoins system after normal,
As spare DPU.
It should be noted that the switching control for the DPU and spare DPU that works in above system is merely illustrative, it can be according to need
Other method for handover control are used, the application is not construed as limiting this.
In one embodiment, the MMI16 is also used to, when the spare DPU quantity in the scattered control system is less than peace
When full threshold value, alarm.Wherein it is possible to be audible alarm, it is also possible to word alarm (for example, showing on monitoring interface
Warning message), alternatively, indicator light alarm (indicator light flashing etc.), alternatively, above-mentioned each type of alarm any combination etc..Wherein,
Secure threshold can be set as needed.
Wherein it is possible to check current spare DPU quantity in real time, spare DPU quantity can also be judged with periodic test whether
Less than secure threshold, spare DPU quantity can also be judged less than secure threshold after receiving the alarm of DPU.
As shown in Fig. 2, one embodiment of the invention provides a kind of scattered control system control method, comprising:
Step 201, enter stand-by state after DPU starting；
Step 202, when the work DPU of the scattered control system is unsatisfactory for the requirement of the logic DPU list of configuration, institute
It states decentralized processing unit and selects the one or more groups of monitor tasks not executed from the logic DPU list, itself is marked
It is denoted as the selected corresponding logic DPU of monitor task, is switched to work DPU.
In one embodiment, after the decentralized processing unit enters stand-by state, further includes:
The spare DPU queue of broadcast is received, the tail of the queue of the spare DPU queue is added, alternatively, spare DPU is not present
When queue, creates spare DPU queue and oneself will be placed in the first place of the spare DPU queue；Broadcast spare DPU queue；When pre-
If do not receive the spare DPU queue of the spare DPU broadcast in local spare DPU queue in the time, from spare DPU queue
Delete the spare DPU；
And after being switched to work DPU, spare DPU queue of going off the air；
The DPU for being switched to work DPU is the first DPU positioned at the spare DPU queue.
In one embodiment, the method also includes broadcasting representated by the DPU after the DPU is switched to work DPU
Logic DPU；
The work DPU of the scattered control system is unsatisfactory for requiring to include for the logic DPU list of configuration: the DPU is not
Detect the corresponding logic DPU of all monitor tasks in the logic DPU list.
As shown in figure 3, one embodiment of the invention provides a kind of DPU30, including memory 310 and processor 320, it is described to deposit
Reservoir 310 is stored with program, and described program is realized and divided described in any embodiment when reading execution by the processor 320
Dissipate control system control method.
It is described computer-readable to deposit as shown in figure 4, one embodiment of the invention provides a kind of computer readable storage medium 40
Storage media 40 is stored with one or more program 41, and one or more of programs 41 can be by one or more processor
It executes, to realize scattered control system control method described in any embodiment.
It will appreciated by the skilled person that whole or certain steps, system, dress in method disclosed hereinabove
Functional module/unit in setting may be implemented as software, firmware, hardware and its combination appropriate.In hardware embodiment,
Division between the functional module/unit referred in the above description not necessarily corresponds to the division of physical assemblies；For example, one
Physical assemblies can have multiple functions or a function or step and can be executed by several physical assemblies cooperations.Certain groups
Part or all components may be implemented as by processor, such as the software that digital signal processor or microprocessor execute, or by
It is embodied as hardware, or is implemented as integrated circuit, such as specific integrated circuit.Such software can be distributed in computer-readable
On medium, computer-readable medium may include computer storage medium (or non-transitory medium) and communication media (or temporarily
Property medium).As known to a person of ordinary skill in the art, term computer storage medium is included in for storing information (such as
Computer readable instructions, data structure, program module or other data) any method or technique in the volatibility implemented and non-
Volatibility, removable and nonremovable medium.Computer storage medium include but is not limited to RAM, ROM, EEPROM, flash memory or its
His memory technology, CD-ROM, digital versatile disc (DVD) or other optical disc storages, magnetic holder, tape, disk storage or other
Magnetic memory apparatus or any other medium that can be used for storing desired information and can be accessed by a computer.This
Outside, known to a person of ordinary skill in the art to be, communication media generally comprises computer readable instructions, data structure, program mould
Other data in the modulated data signal of block or such as carrier wave or other transmission mechanisms etc, and may include any information
Delivery media.
Claims (10)
1. a kind of scattered control system characterized by comprising multiple decentralized processing units, IO communication network and bus communication
Module, the decentralized processing unit are connected to IO communication network, and the bus communication module is connected to IO communication network, described total
Line communication module is connected to I/O module by IO bus, in which:
The multiple decentralized processing unit is mutually redundant；
The bus communication module is used for, and establishes connection by IO communication network and decentralized processing unit, and, it will be communicated from IO
It is sent after the data conversion that network receives by IO bus, and, it will be sent to after the data conversion that IO bus receives
IO communication network.
2. scattered control system according to claim 1, which is characterized in that the decentralized processing unit is used for, after starting
Into stand-by state, when the work decentralized processing unit of the scattered control system is unsatisfactory for the logic decentralized processing unit of configuration
When the requirement of list, the one or more groups of monitor tasks not executed are selected from the logic decentralized processing unit list,
It will be self-marked as the selected corresponding logic decentralized processing unit of monitor task, is switched to work decentralized processing unit, wherein
It include monitor task and corresponding logic decentralized processing unit in the logic decentralized processing unit list.
3. scattered control system according to claim 2, which is characterized in that the decentralized processing unit is also used to, and is entered
After stand-by state, the spare decentralized processing cell queue of broadcast is received, the tail of the queue of the spare decentralized processing cell queue is added,
Alternatively, creating spare decentralized processing cell queue when spare decentralized processing cell queue is not present and oneself will be placed in described
The first place of spare decentralized processing cell queue, and, spare decentralized processing cell queue is sent by broadcast mode；When default
The interior spare decentralized processing list for not receiving the spare decentralized processing cell broadcast in local spare decentralized processing cell queue
When first queue, the decentralized processing unit is deleted from spare decentralized processing cell queue, and, it is switched to work decentralized processing list
After member, spare decentralized processing cell queue of going off the air；
The decentralized processing unit for being switched to work decentralized processing unit is positioned at the spare decentralized processing cell queue
The first decentralized processing unit.
4. scattered control system according to claim 2, which is characterized in that
The decentralized processing unit is also used to, and when as work decentralized processing unit, broadcasts decentralized processing unit institute's generation
The logic decentralized processing unit of table；
The work decentralized processing unit of the scattered control system is unsatisfactory for the requirement of the logic decentralized processing unit list of configuration
It include: that the corresponding logic of all monitor tasks in the logic decentralized processing unit list is not detected in the decentralized processing unit
Decentralized processing unit.
5. scattered control system according to any one of claims 1 to 4, which is characterized in that it further include man-machine interactive interface,
The man-machine interactive interface is used for, and distributes logic decentralized processing unit for monitor task, for the logic decentralized processing unit point
With bus communication module, the logic decentralized processing cell columns comprising monitor task and corresponding logic decentralized processing unit are generated
The logic decentralized processing unit list is handed down to decentralized processing unit by table.
6. scattered control system according to claim 5, which is characterized in that the man-machine interactive interface is also used to, and works as institute
When stating the spare decentralized processing element number in scattered control system less than secure threshold, alarm.
7. a kind of scattered control system control method, applied to the scattered control system as described in claim 1 to 6 is any, packet
It includes:
Enter stand-by state after decentralized processing unit starting；
When the work decentralized processing unit of the scattered control system is unsatisfactory for wanting for the logic decentralized processing unit list of configuration
When asking, the decentralized processing unit selects the one or more groups of prisons not executed from the logic decentralized processing unit list
Control task will be self-marked as the selected corresponding logic decentralized processing unit of monitor task, be switched to work decentralized processing list
Member.
8. scattered control system control method according to claim 7, which is characterized in that the decentralized processing unit enters
After stand-by state, further includes:
The spare decentralized processing cell queue of broadcast is received, the tail of the queue of the spare decentralized processing cell queue is added, alternatively,
There is no when spare decentralized processing cell queue, create spare decentralized processing cell queue and oneself will be placed in the spare dispersion
The first place of processing unit queue；Spare decentralized processing cell queue is sent by broadcast mode；When not received in preset time
When the spare decentralized processing cell queue of the spare decentralized processing cell broadcast in local spare decentralized processing cell queue, from standby
With deleting the decentralized processing unit in decentralized processing cell queue；
And after being switched to work decentralized processing unit, spare decentralized processing cell queue of going off the air；
The decentralized processing unit for being switched to work decentralized processing unit is positioned at the spare decentralized processing cell queue
The first decentralized processing unit.
9. scattered control system control method according to claim 7, which is characterized in that the method also includes described
After decentralized processing unit is switched to work decentralized processing unit, logic decentralized processing representated by the decentralized processing unit is broadcasted
Unit；
The work decentralized processing unit of the scattered control system is unsatisfactory for the requirement of the logic decentralized processing unit list of configuration
It include: that the corresponding logic of all monitor tasks in the logic decentralized processing unit list is not detected in the decentralized processing unit
Decentralized processing unit.
10. a kind of computer readable storage medium, which is characterized in that the computer-readable recording medium storage have one or
Multiple programs, one or more of programs can be executed by one or more processor, to realize such as claim 7 to 9
Any scattered control system control method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910406708.XA CN110147081A (en) | 2019-05-16 | 2019-05-16 | A kind of scattered control system and its control method, computer readable storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910406708.XA CN110147081A (en) | 2019-05-16 | 2019-05-16 | A kind of scattered control system and its control method, computer readable storage medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110147081A true CN110147081A (en) | 2019-08-20 |
Family
ID=67595340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910406708.XA Pending CN110147081A (en) | 2019-05-16 | 2019-05-16 | A kind of scattered control system and its control method, computer readable storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110147081A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112180820A (en) * | 2020-08-31 | 2021-01-05 | 国电蚌埠发电有限公司 | Application method of Modbus RTU communication protocol in EDPF-NT Plus system |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101629496A (en) * | 2009-07-30 | 2010-01-20 | 杭州和利时自动化有限公司 | Digital electrohydraulic control system of steam turbine with isolated network operation |
| CN101916217A (en) * | 2010-08-04 | 2010-12-15 | 中兴通讯股份有限公司 | Method, control device and system for switching a plurality of controllers |
| CN101957619A (en) * | 2010-10-25 | 2011-01-26 | 京仪华文自动化系统工程（上海）有限公司 | Decentralized control system for layering controller |
| CN202196308U (en) * | 2011-05-27 | 2012-04-18 | 北京创时能源有限公司 | Circulating water residual-heat utilization control system |
| CN202421873U (en) * | 2012-01-11 | 2012-09-05 | 江苏瑞奇自动化有限公司 | Distributed control system supporting function safety and information safety |
| US20140222887A1 (en) * | 2013-02-01 | 2014-08-07 | Introspective Power, Inc. | Generic distributed processing unit for multi-agent systems |
| CN104977875A (en) * | 2014-04-09 | 2015-10-14 | Abb技术有限公司 | Controller System With Peer-to-peer Redundancy, And Method To Operate The System |
| CN205539996U (en) * | 2015-12-12 | 2016-08-31 | 重庆川仪自动化股份有限公司 | Redundant control system of controller, IO communication bus and communication module |
| CN205563232U (en) * | 2016-04-11 | 2016-09-07 | 淮阴工学院 | Deep water blowout preventer stack automated control system based on underwater acoustic technique |
| CN109669343A (en) * | 2019-02-19 | 2019-04-23 | 湖南力宇新能源科技有限公司 | A kind of unit control system |
-
2019
- 2019-05-16 CN CN201910406708.XA patent/CN110147081A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101629496A (en) * | 2009-07-30 | 2010-01-20 | 杭州和利时自动化有限公司 | Digital electrohydraulic control system of steam turbine with isolated network operation |
| CN101916217A (en) * | 2010-08-04 | 2010-12-15 | 中兴通讯股份有限公司 | Method, control device and system for switching a plurality of controllers |
| CN101957619A (en) * | 2010-10-25 | 2011-01-26 | 京仪华文自动化系统工程（上海）有限公司 | Decentralized control system for layering controller |
| CN202196308U (en) * | 2011-05-27 | 2012-04-18 | 北京创时能源有限公司 | Circulating water residual-heat utilization control system |
| CN202421873U (en) * | 2012-01-11 | 2012-09-05 | 江苏瑞奇自动化有限公司 | Distributed control system supporting function safety and information safety |
| US20140222887A1 (en) * | 2013-02-01 | 2014-08-07 | Introspective Power, Inc. | Generic distributed processing unit for multi-agent systems |
| CN104977875A (en) * | 2014-04-09 | 2015-10-14 | Abb技术有限公司 | Controller System With Peer-to-peer Redundancy, And Method To Operate The System |
| CN205539996U (en) * | 2015-12-12 | 2016-08-31 | 重庆川仪自动化股份有限公司 | Redundant control system of controller, IO communication bus and communication module |
| CN205563232U (en) * | 2016-04-11 | 2016-09-07 | 淮阴工学院 | Deep water blowout preventer stack automated control system based on underwater acoustic technique |
| CN109669343A (en) * | 2019-02-19 | 2019-04-23 | 湖南力宇新能源科技有限公司 | A kind of unit control system |
Non-Patent Citations (1)
| Title |
|---|
| 北京国电智深控制技术有限公司: ""国电智深DCS系统培训"", 《百度文库》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112180820A (en) * | 2020-08-31 | 2021-01-05 | 国电蚌埠发电有限公司 | Application method of Modbus RTU communication protocol in EDPF-NT Plus system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109495312B (en) | Method and system for realizing high-availability cluster based on arbitration disk and double links | |
| US6859889B2 (en) | Backup system and method for distributed systems | |
| CN103618621B (en) | A kind of software defined network SDN method of automatic configuration, equipment and system | |
| CN102025790B (en) | Address allocation method, device and system | |
| US11146457B2 (en) | Train network node and CANopen-based train network node monitoring method | |
| CN101965691B (en) | Cable redundancy and networked system | |
| CN105897836A (en) | Back source request processing method and device | |
| CN109787795B (en) | Method for processing fault of train network master node, node and electronic equipment | |
| CN105515812A (en) | Fault processing method of resources and device | |
| JPH06202978A (en) | Logical route schedule device and method of execution | |
| US9413552B2 (en) | Internet protocol addressing of devices employing the network ring topology | |
| CN108306760A (en) | For making the self-healing method and apparatus of managerial ability in a distributed system | |
| CN104506372A (en) | Method and system for realizing host-backup server switching | |
| KR102313705B1 (en) | Method of handling power failure and method and device of obtaining connection relationship | |
| CN105812161B (en) | A kind of controller failure backup method and system | |
| CN110147081A (en) | A kind of scattered control system and its control method, computer readable storage medium | |
| CN103324554A (en) | Standby system device, a control method, and a program thereof | |
| CN101325433A (en) | Veneer protection system and method for implementing veneer rearrangement | |
| US9344327B2 (en) | Wireless-based network management | |
| CN101110609A (en) | Method and system for implementing communication of main and standby module | |
| CN106444685A (en) | Distributed control system and method of distributed control system for dynamic scheduling resources | |
| WO2007146473B1 (en) | Method and system for distributing data processing units in a communication network | |
| CN108196441B (en) | Method for realizing hot standby redundancy for system application | |
| CN115225464B (en) | Network switching method, device, equipment and storage medium | |
| EP3076742B1 (en) | Cell activation method and device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190820 |
|
| RJ01 | Rejection of invention patent application after publication |