CN201820139U - Hierarchical decentralized control system for digital processing units - Google Patents
Hierarchical decentralized control system for digital processing units Download PDFInfo
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Abstract
The utility model relates to a hierarchical decentralized control system for digital processing units, which is provided with a plurality of layers of control units for respectively and correspondingly monitoring a plurality of controlled device functional groups divided by function or process, wherein each controlled device functional group comprises a plurality of controlled devices which are related in control parameters and mutually matched for working; and the next stage of a plurality of attaching controlled devices are further arranged under the controlled device. With the system, one control unit group in an original DCS (data collection system), after being subdivided according to different functions, is controlled and executed by a plurality of FCUs (field control units) respectively and coordinated by an MCU (main control units), therefore, the corresponding relationship between a control unit and a device is clearer, the data transmission load rate on a backbone network is reduced, the control risk is decentralized, and the response speed is also upgraded. As the FCUs are placed on the side field of the device, the length of cables for connecting the field devices is reduced, the system can replace an existing intelligent instrument to realize PID (proportion-integral-differentiation) regulation, and the field devices can still adopt conventional instruments for measurement. The longer distance between the field FCUs and the MCU of a control chamber adopt an industrial Ethernet for transmission, so that the cable cost can be saved by more than 60%, the investment cost on the field devices can be reduced, and the area of the control chamber can be decreased.
Description
Technical field
The utility model relates to a kind of automatic control system, particularly a kind of scattered control system of digital processing element layering.
Background technology
At present, the old process Industry Control is the most frequently used is as shown in Figure 1 scattered control system (hereinafter to be referred as the DCS system), it generally comprises the HMI(man-machine interface that the Ethernet by redundancy connects successively, i.e. operator station, engineer station etc.), the DPU(digital processing element) and I/O parts (input-output unit).The I/O parts also are connected with field apparatus by signal cable, with the data delivery that collects on the conventional instrument installed on the equipment or the pick-up unit to DPU.
As the critical component in the DCS system, DPU is sent to the HMI layer with data, and the technician can be monitored in real time by operator station, or can further carry out the setting and modifying operation of controlled variable by the engineer station; DPU if control signal is exported in the instruction that HMI provides, adjusts the duty of field apparatus according to pre-via I/O parts, signal cable afterwards.
Yet, because above-mentioned HMI, DPU and I/O parts all are placed in the central control room; And what on-the-spot conventional instrument that is provided with and pick-up unit provided to the I/O parts is simulating signal, the transmission of each simulating signal needs a pair of cable, therefore, need expend a large amount of cables, simultaneously also need the space of central control room enough huge, hold introducing described cable and a large amount of I/O parts wherein.So, existing scattered control system (DCS) the cost height is set, floor area is big, and is more outstanding under the situation of especially many at opertaing device, on-the-spot and pulpit distance.
In order to address this problem, to have now at process industry and also used another kind of control system as shown in Figure 2, be i.e. field bus control system (hereinafter to be referred as the FCS system).Its on-the-spot side to the DCS system is improved: use on the equipment at the scene to have PID(ratio, differential, integration) the intelligent instrument and the pick-up unit of regulatory function, after analog-signal transitions such as the temperature at scene, pressure, flow can being become digital signal, direct and DPU carries out the transmission of digital signal, thereby the most of I/O parts that in DCS, use have been cancelled, the consumption that can reduce cable simultaneously reaches 60%, and the area of central control room also can correspondingly reduce.
But the FCS system remains in following shortcoming at present:
1.FCS employed instrument and the pick-up unit that carries adjusting and digital communication function involves great expense in the system, so the total cost of control system does not descend, according to existing document record, cost rises to some extent on the contrary.
2. bus is not supported redundancy feature at present, has connected a large amount of described instrument on a fieldbus, if any bus breaks down and all will influence the operation of total system, has reduced the reliability of FCS system.
3. in some occasion, FCS also can't provide DCS existing control function.Because the restriction of software and hardware level, the function of its functional block also is not very strong, and kind is also complete inadequately; Can only form general control loop such as single loop, tandem, proportional control etc. with field instrument, also can't in instrument, realize, lack good solution for the situations that many inputs, many outputs are arranged in the single loop for complexity, advanced control algolithm.
Although so the notion of fieldbus proposed ten surplus year, above-mentioned reason has limited the application of FCS system in the process control field.
In addition, in existing DCS and the FCS system, described DPU is the individual layer floor plan: with the example that is controlled to be of heat power plant boiler, wherein some DPU is used to control boiler, every couple of DPU need control a plurality of auxiliary devices of boiler simultaneously; Some in addition DPU is used to control the auxiliary device of steamer pusher side, promptly the function of the effect of all DPU and realization all is in equal status, and the function layout of DPU is divided clearly simultaneously, and control efficiency is low; In case and certain breaks down to DPU, can influence the operation of a plurality of equipment, causes total system serious consequence out of control.
The utility model content
The purpose of this utility model provides a kind of scattered control system of digital processing element layering, the advantage of traditional DCS system and FCS system is combined, to have DPU distribution three-dimensional now, as be divided into the MCU(primary controller) and the FCU(field control unit), finish control respectively to control module group and control module group, realized fieldbus and Industrial Ethernet technology upgrading that conventional instrument, actuator, driving arrangement that the scene is provided with are carried out, thereby save umbilical cable, crane span structure, pulpit cost, and improve system's control reliability.
To achieve these goals, the technical solution of the utility model provides a kind of scattered control system of digital processing element layering, is provided with the several layers control module, several controlled plant function groups that corresponding respectively monitoring is divided with technology or function;
Comprise controlled variable be associated and the cooperatively interact some described controlled plant of work in each controlled plant function group, also be provided with the some attached controlled plant of next stage under each described controlled plant.
Described several controlled plant function group correspondences comprise some control module groups, and the some control module groups under each control module group;
Described several layers control module comprises corresponding described some control module groups setting and controls some master controllers of its work, and corresponding described some control module groups are provided with and control some field controllers of its work;
Each described master controller is connected respectively with some described field controllers by subnet, and according to the Monitoring Data that these some field controllers send, these some field controllers is coordinated control.
Described some master controllers are connected with man-machine interface by backbone network, and are placed in the pulpit with described man-machine interface;
Described master controller is else coordinated control also by backbone network and other master controllers interconnect and carry out the exchange of control information to realize control module group level;
Described some master controllers are also respectively to described man-machine interface transmitting supervisory data, and receive the operational order that described man-machine interface is returned.
Some operator stations, engineer station that described man-machine interface is provided with are connected with described backbone network by two redundant circuits respectively; Described backbone network is the redundant two-way 100M/1000M Industrial Ethernet that is provided with.
Described master controller comprises the communication control module that is connected with described backbone network, and the computing module that is connected with described communication control module;
Described communication control module also is connected with the plurality of data transport module, and the some light mouths that are provided with by each data transmission module and electricity mouthful, is complementary with some interfaces on the described subnet and is connected;
Described communication control module is sent to described computing module with the Monitoring Data on operational order on the described backbone network and the described subnet, after carrying out operational analysis by described computing module, return control signal exports described subnet to via data transmission module again to communication control module.
Described master controller also comprises data simultaneous module, makes a pair of redundant described master controller that is provided with, and interconnects the line data backup of going forward side by side by this data simultaneous module that is provided with separately;
Described data simultaneous module is connected respectively with communication control module with described computing module, and the computing module of another the described master controller that is provided with redundancy is connected.
Each described field controller is connected with some I/O parts by the I/O bus, and is placed on industry spot together, near the controlled plant of described control module group;
Some described I/O parts and the sub corresponding connection of organizing of controlled plant of described control module, feed back the Monitoring Data that described control module group is gathered by the I/O bus to described field controller, and the driving order of output field controller forms independently control loop to described control module group.
Described field controller comprises multiport memory, and is connected with this multiport memory two-phase respectively and the simultaneously primary processor and the auxilliary processor of asynchronous access;
Described auxilliary processor is provided with some bus communication interfaces and is connected with the I/O bus respectively, accepts the field monitoring data of the controlled plant of described control module group by described I/O parts feedback, and deposits described multiport memory in;
Described primary processor is provided with plurality of sub Netcom communication interface and is connected with subnet respectively, and according to the control signal of the described master controller of its acceptance, and the field monitoring data of storage carry out computing, provides drive signal and deposits described multiport memory in;
Described auxilliary processor reads described drive signal, and exports by the I/O parts that described some bus communication interfaces connect on the I/O bus.
The described subnet that connects described master controller and field controller comprises the redundant two-way 10M/100M Industrial Ethernet that is provided with; Connect described field controller and the described subnet that some I/O parts are connected, comprise the redundant two-way fieldbus that is provided with.
Described field controller also comprises the hardware synchronization module that is connected with described auxilliary processor, and the synchronous dynamic random access memory and the Synchronization Network communication interface that are connected respectively with described primary processor, make a pair of redundant field controller that is provided with, interconnect the line data of going forward side by side backup by described hardware synchronization module and the Synchronization Network communication interface that is provided with separately.
Compared with prior art, the scattered control system of digital processing element layering described in the utility model (FPCS), controller layering with existing floor plan, a plurality of tasks that a control module group of originally being finished by a pair of DPU will be finished, after function is subdivided into multi-level unit group, be distributed among some FCU corresponding, and the FCU in this control module group coordinated control, thereby realize the cooperating of relevant device by MCU with field apparatus.
Therefore, can see that the utility model has following advantage:
1. the corresponding relation of digital control unit and equipment is quite clear, controller disperses physically more, controls risk and also just more disperses, and can effectively reduce the rate of load condensate on the data transmission network simultaneously, thereby the reliability of system, elevator system response speed can have been improved.
2. each parts such as MCU, FCU in the utility model, and every layer of communication network all adopt the redundant fashion setting, and carry out data synchronization in real time and follow the tracks of.Therefore, when fault, switch to automatically unperturbed the back reserve line control system on work.
3. because FCU and subordinate's field apparatus forms independently control loop, MCU when a pair of redundancy, or FCU is with this during to being connected network and breaking down of MCU, FCU also can finish control function voluntarily as the intelligence instrument that uses in the common field bus system (FCS), realization is to the adjusting of the controlling object of this unit group, further improved the reliability of FPCS described in the utility model system.
4. in arranging at the scene, equipment is often far away with central station of floating dock.And this segment distance adopts optical fiber to connect in the FPCS system, is not subjected to electromagnetic interference (EMI); And because FCU and I/O parts all are placed near the equipment, umbilical cable shortens greatly, also can reduce the interference of electromagnetic signal to system greatly.This has also improved the interference free performance of native system greatly.
5. because FCU of the present utility model and I/O parts all are placed on device context, in-site measurement still adopts conventional instrument, thereby can not increase user's expense aspect the selection of instrument, and meets the cardinal rule of traditional engineering design.Compare the existing control system of same control scale and distance, the utility model only need use cable down than short distance at the scene, and the long distance between the MCU of FCU at the scene and pulpit is used the Industrial Ethernet transmission, can save the cable expense more than 60%, reduced the cost of field apparatus, the area of pulpit also effectively reduces, and the cost of The whole control system will reduce greatly.
6. the FCU parts in the utility model have powerful data processing function, can realize comparatively complicated control algolithm on the spot.
7. the utility model has overcome the shortcoming that present fieldbus is not supported redundant bus, supports the communication of field intelligent instruments such as HART, PROFIBUS, FF simultaneously, for the user provides Fieldbus Control and primary equipment management system functions such as (EAM).
The slip-stick artist can directly carry out off-line configuration, online configuration, online modification and download to MCU and FCU by the FPCS configuration software on the engineer station in native system, realized the digitizing of information management system, the unitization design of control system lays the first stone for future.
Description of drawings
Fig. 1 is the general structure synoptic diagram of existing scattered control system (DCS);
Fig. 2 is the general structure synoptic diagram of existing field bus control system (FCS);
Fig. 3 is the general structure synoptic diagram of the scattered control system (FPCS) of the utility model digital processing element layering;
Fig. 4 is the network topology structure figure of the scattered control system (FPCS) of the utility model digital processing element layering;
Fig. 5 is the structural representation of the middle redundant a pair of master controller (MCU) that is provided with of scattered control system (FPCS) of the utility model digital processing element layering;
Fig. 6 is the structural representation of the middle redundant a pair of field controller (FCU) that is provided with of scattered control system (FPCS) of the utility model digital processing element layering.
Embodiment
As shown in Figure 3, the utility model relates to a kind of scattered control system (hereinafter to be referred as the FPCS system) of digital processing element layering, from the primary demand and the ultimate principle of process flow industry process control controlled plant, controlled plant is subdivided into some device control levels such as control module group, control module group, control module secondary group according to technology.Be to be connected with several control module groups under each control module group, the controlled variable of these some control module groups is mutually related again, by that analogy to each device control level group.
FPCS described in the utility model system carries out the three-dimensional layering with the digital processing element (DPU) in the existing control system and handles, and the several layers control module is set comes the above-mentioned some device control levels of corresponding monitoring.Below, be example with described FPCS system with two-layer control module, embodiment of the present utility model is described, its system layout and control method can extend to the control system that control module group is provided with more multistage son groups such as secondary, three grades down.
Cooperation is referring to Fig. 3, shown in Figure 4, the control module of described FPCS system comprises the some primary controllers (hereinafter to be referred as MCU) according to the corresponding configuration of described control module group quantity, and according to some field controllers (hereinafter to be referred as FCU) of the corresponding configuration of described control module group.
MCU and FCU are the redundant fashion setting, and each finishes the control function of unit in the control module group to FCU; Some FCU is connected to a pair of MCU, MCU is coordinated relation between each control module group, and FCU is cooperated, finish the repertoire of a control module group jointly with some by this.
Some to MCU upwards by backbone network and HMI(man-machine interface) be connected.Described backbone network is the redundant two-way 100M/1000M Industrial Ethernet (A net, B net) that is provided with, and every pair of Industrial Ethernet can connect 64 couples of MCU at most.Under normal circumstances by the work of A net, and with B net real time data synchronization, and when fault, be directly switch into the work of B net.When the utility model related to the description of redundancy, A net, B net, meaning was similar.
The some operator stations that are provided with among the HMI, engineer station etc. are connected with A net, the B net of backbone network by two redundant circuits respectively, and every circuit and MCU can carry out two-way signal to be transmitted.Send the Monitoring Data of collection in worksite by MCU to HMI, and, adjust the control signal of its FCU transmission downwards according to the operational order that HMI returns.
Described MCU is in HMI is placed on the pulpit.Every couple of MCU is connected FCU with some by subnet A ', B ', carries out the transmitted in both directions of digital signal.Use redundant two-way 10M/100M Industrial Ethernet to constitute described subnet A ', B ', then every couple of MCU can connect and support 32 couples of FCU at most.
The every couple of FCU is by redundant I/O bus A ", B ", can connect and support 512 I/O parts at most.This FCU and I/O parts all adopt-40 ℃ ~ 85 ℃ the wide temperature working environment and the structural design of high-protection level, are placed on together near the controlled plant of industry spot.FCU directly is connected with conventional instrument, actuator or the driving arrangement of controlled plant by the I/O parts, forms independently control loop.
Cooperation is referring to Fig. 4, shown in Figure 5, a pair of redundant MCU that is provided with
A, MCU
B, structure is identical and interconnect.MCU
ABe provided with a communication control module 12, externally, A is connected with backbone network, also is connected with subnet A ' by plurality of data transport module 13; Internally, be connected with computing module 11.
Plurality of data transport module 13 is connected mutually, carries out exchanges data with serial mode and subnet A ', so, the FCU quantity that can drive down according to every couple of MCU, and the interface type of subnet A ' and quantity, the quantity of the data transmission module 13 that decision is used.Each data transmission module 13 is provided with 4 light mouths and 3 electricity mouthful, can be connected to come transmission of digital signals by light mouth and optical fiber etc., or be connected transmission of analogue signal by electric mouth with cable.
MCU
AComputing module 11 also be connected with a data simultaneous module 14 respectively with communication control module 12, with the instruction of control signal, the reception of output and Monitoring Data etc., export MCU to by this data simultaneous module 14 respectively
BOn computing module 11, carry out real-time data backup.Therefore, MCU
AComputing module 11 also be provided with a port and MCU
BData simultaneous module 14 connect.This data simultaneous module 14 also is provided with the electricity mouth of debugging usefulness.
Described computing module 11 can be used X86 or ARM9, and communication control module 12 can use the chip of ARM9 to realize, therefore, described MCU can be provided with the power management module 15 of alternating current 220V commentaries on classics direct current 24V and power.
Cooperation is referring to Fig. 4, shown in Figure 6, the redundant FCU that is provided with
A, FCU
BStructure is identical and interconnect.FCU
ABe provided with the multiport memory 21 of a shared formula, and the primary processor 22 and the auxilliary processor 23 that are connected with these multiport memory 21 two-phases respectively.This multiport memory 21 can use dual port RAM, with the asynchronous access of supporting that described primary processor 22, auxilliary processor 23 carry out simultaneously.
Described auxilliary processor 23, by two bus communication interfaces 242 respectively with the I/O bus A of redundancy ", B " be connected, receive the field monitoring data that send by the I/O parts, and deposit it in multiport memory 21.Described primary processor 22 is connected with subnet A ', B ' respectively by two sub-Netcom communication interfaces 241, according to the control signal by the MCU transmission of its reception, and read described field monitoring data, after carrying out computing, provide on-the-spot the driving and order, and export multiport memory 21 preservations to.Auxilliary processor 23 these scenes of control drive order from the reading of multiport memory 21, and export I/O bus A to process bus communication interface 242 ", B " process.
Described FCU
AAuxilliary processor 23 also by a hardware synchronization module 251, with FCU
BIn hardware synchronization module 251 connect; FCU
APrimary processor 22, also be connected with a synchronous dynamic storage 252 respectively, and by a synchronous Netcom communication interface 253, with FCU
BIn Synchronization Network communication interface 253 connect, carry out the renewal of backing up in realtime of data.
This primary processor 22 also is connected with a FLASH storer 26, deposits static informations such as original state parameter therein.
Below be the scattered control system (FPCS) of digital processing element layering described in the utility model, at a specific embodiment of large-size thermal power plant, its controlled plant comprises boiler, steam turbine, generator and auxiliary device thereof from macroscopical aspect.From the angle of control theory, boiler, steam turbine, generator correspondence are made as three control module groups, so correspondence is provided with three couples of MCU in the present embodiment.And the control correspondence of each auxiliary device under the control module group is made as control module group.
As for boiler, described auxiliary device has pressure fan, induced draft fan, water work etc., and mutual cooperating is to guarantee the normal operation of boiler.Wherein the control of pressure fan is except outside the Pass the set-point with operating personnel has, and is also relevant with working condition, the boiler combustion operating mode of induced draft fan.
So control corresponding unit group just comprises the control etc. of control, all range feedwater control, vapor (steam) temperature and the flow of the start and stop of control, induced draft fan of the start and stop of pressure fan and rotating speed and rotating speed.If these equipment also have its auxiliary device, just can further set control module secondary group.
Therefore, described FCU and I/O parts are taked to be placed on the scene after suitable safeguard procedures and the low power dissipation design (hermetically sealed, high temperature resistance), can be still by conventional instrument with state parameters such as the pressure of pressure fan, induced draft fan, water work, temperature, flows, after the I/O of correspondence parts carried out analog to digital conversion, the some FCU that deliver under the same MCU carried out PID adjusting processing.
Each FCU also passes through the supplemental characteristic of redundant subnet to MCU transmission collection in worksite, is responsible for and other FCU exchange messages that are connected to this MCU by MCU, and realization unit is organized level and else coordinated to control.MCU also can be by backbone network and other other control informations of MCU exchange system level, and other is coordinated control or accept from the operational order of HMI etc. to realize control module group level.
MCU bonding state parameter and given instruction are handled, and the output control signal gives corresponding FCU, and the FCU output drive signal is adjusted the concrete duty of its subordinate's field apparatus.
In sum, FPCS described in the utility model system, controller layering with existing floor plan, a plurality of tasks that an original control module group will be finished, after function is subdivided into multi-level unit group, be distributed among some FCU, and coordinate control, thereby realize the cooperating of relevant device by MCU.Therefore in the utility model, the corresponding relation of digital control unit and equipment is quite clear, controller disperses physically more, can effectively reduce the rate of load condensate on the data transmission network, control risk and just more disperse, system's interference free performance improves greatly, thereby can improve the reliability of system, the elevator system response speed.
And, each parts such as MCU, FCU in the utility model, and every layer of communication network all adopt the redundant fashion setting, and carry out data synchronization in real time and follow the tracks of.Therefore, when fault, switch to automatically unperturbed the back reserve line control system on work.
Simultaneously, because FCU and subordinate's field apparatus forms independently control loop, MCU when a pair of redundancy, or FCU is with this during to being connected network and breaking down of MCU, FCU also can finish the function that PID regulates voluntarily as the intelligence instrument that uses in the conventional on-site bus system (FCS), realization is regulated the PID of the controlling object of this unit group, has further improved the reliability of FPCS described in the utility model system.
In addition, because FCU of the present utility model and I/O parts all are placed on the scene, measure and still adopt conventional instrument, thereby can aspect the selection of instrument, not increase user's expense, and meet the cardinal rule of traditional engineering design.Compare the existing control system of same control scale and distance, the utility model only need use cable down than short distance at the scene, and the long distance between the MCU of FCU at the scene and pulpit is used the Industrial Ethernet transmission, can save the cable expense more than 60%, the area of pulpit also effectively reduces, and the cost of The whole control system will reduce greatly.
The utility model has overcome the shortcoming that present fieldbus is not supported redundant bus, the utility model is supported the communication of field bus protocols such as HART, PROFIBUS, FF, for the user provides Fieldbus Control and primary equipment management system functions such as (EAM), the slip-stick artist can directly carry out off-line configuration, online configuration, online modification and download to MCU and FCU by the FPCS configuration software on the engineer station, realized the digitizing of information management system, the unitization design of control system lays the first stone for future.
Although content of the present utility model has been done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to restriction of the present utility model.After those skilled in the art have read foregoing, for multiple modification of the present utility model with to substitute all will be conspicuous.Therefore, protection domain of the present utility model should be limited to the appended claims.
Claims (10)
1. the scattered control system of a digital processing element layering is characterized in that, is provided with the several layers control module, several controlled plant function groups that corresponding respectively monitoring is divided with technology or function;
Comprise controlled variable be associated and the cooperatively interact some described controlled plant of work in each controlled plant function group, also be provided with the some attached controlled plant of next stage under each described controlled plant.
2. the scattered control system of digital processing element layering according to claim 1 is characterized in that described several controlled plant function group correspondences comprise some control module groups, and the some control modules groups under each control module group;
Described several layers control module comprises corresponding described some control module groups setting and controls some master controllers of its work, and corresponding described some control module groups are provided with and control some field controllers of its work;
Each described master controller is connected respectively with some described field controllers by subnet, and according to the Monitoring Data that these some field controllers send, these some field controllers is coordinated control.
3. as the scattered control system of digital processing element layering as described in the claim 2, it is characterized in that described some master controllers are connected with man-machine interface by backbone network, and are placed in the pulpit with described man-machine interface;
Described master controller is else coordinated control also by backbone network and other master controllers interconnect and carry out the exchange of control information to realize control module group level;
Described some master controllers are also respectively to described man-machine interface transmitting supervisory data, and receive the operational order that described man-machine interface is returned.
4. as the scattered control system of digital processing element layering as described in the claim 3, it is characterized in that some operator stations, engineer station that described man-machine interface is provided with are connected with described backbone network by two redundant circuits respectively; Described backbone network is the redundant two-way 100M/1000M Industrial Ethernet that is provided with.
5. as the scattered control system of digital processing element layering as described in claim 3 or 4, it is characterized in that, described master controller comprises the communication control module (12) that is connected with described backbone network, and the computing module (11) that is connected with described communication control module (12);
Described communication control module (12) also is connected with plurality of data transport module (13), and the some light mouths that are provided with by each data transmission module (13) and electricity mouthful, is complementary with some interfaces on the described subnet and is connected;
Described communication control module (12) is sent to described computing module (11) with the Monitoring Data on operational order on the described backbone network and the described subnet, after carrying out operational analysis by described computing module (11), return control signal exports described subnet to via data transmission module (13) again to communication control module (12).
6. as the scattered control system of digital processing element layering as described in the claim 5, it is characterized in that, described master controller also comprises data simultaneous module (14), make a pair of redundant described master controller that is provided with, interconnect the line data backup of going forward side by side by this data simultaneous module (14) that is provided with separately;
Described data simultaneous module (14) is connected respectively with communication control module (12) with described computing module (11), and the computing module (11) of another the described master controller that is provided with redundancy is connected.
7. as the scattered control system of digital processing element layering as described in the claim 6, it is characterized in that each described field controller is connected with some I/O parts by the I/O bus, and be placed on industry spot together, near the controlled plant of described control module group;
Some described I/O parts and the sub corresponding connection of organizing of controlled plant of described control module, feed back the Monitoring Data that described control module group is gathered by the I/O bus to described field controller, and the driving order of output field controller forms independently control loop to described control module group.
8. as the scattered control system of digital processing element layering as described in the claim 7, it is characterized in that, described field controller comprises multiport memory (21), and is connected with this multiport memory (21) two-phase respectively and the simultaneously primary processor (22) and the auxilliary processor (23) of asynchronous access;
Described auxilliary processor (23) is provided with some bus communication interfaces (242) and is connected with the I/O bus respectively, accepts the field monitoring data of the controlled plant of described control module group by described I/O parts feedback, and deposits described multiport memory (21) in;
Described primary processor (22) is provided with plurality of sub Netcom communication interface (241) and is connected with subnet respectively, and according to the control signal of the described master controller of its acceptance, the field monitoring data that reach storage are carried out computing, provide drive signal and deposit described multiport memory (21) in;
Described auxilliary processor (23) reads described drive signal, and exports by the I/O parts that described some bus communication interfaces (242) connect on the I/O bus.
9. as the scattered control system of digital processing element layering as described in the claim 8, it is characterized in that, connect the described subnet of described master controller and field controller, comprise the redundant two-way 10M/100M Industrial Ethernet that is provided with; Connect described field controller and the described subnet that some I/O parts are connected, comprise the redundant two-way fieldbus that is provided with.
10. as the scattered control system of digital processing element layering as described in the claim 9, it is characterized in that, described field controller also comprises the hardware synchronization module (251) that is connected with described auxilliary processor (23), and the synchronous dynamic random access memory (252) and the Synchronization Network communication interface (253) that are connected respectively with described primary processor (22), make a pair of redundant field controller that is provided with, interconnect the line data of going forward side by side backup by described hardware synchronization module (251) and the Synchronization Network communication interface (253) that is provided with separately.
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| CN2010205750730U CN201820139U (en) | 2010-10-25 | 2010-10-25 | Hierarchical decentralized control system for digital processing units |
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| CN2010205750730U Expired - Fee Related CN201820139U (en) | 2010-10-25 | 2010-10-25 | Hierarchical decentralized control system for digital processing units |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102385362A (en) * | 2011-09-14 | 2012-03-21 | 无锡市星亿涂装环保设备有限公司 | Remote control method, device and system |
| WO2012055165A1 (en) * | 2010-10-25 | 2012-05-03 | 京仪华文自动化系统工程（上海）有限公司 | Distribution control system with layered controllers |
| CN102866690A (en) * | 2012-09-18 | 2013-01-09 | 南京国电南自美卓控制系统有限公司 | Redundancy switching method among redundancy process control stations in distributed control system |
| CN109324586A (en) * | 2018-11-28 | 2019-02-12 | 北京国电龙源环保工程有限公司 | For the Predictive Control System and its control method of quick change system |
| CN109884880A (en) * | 2019-03-29 | 2019-06-14 | 北京卫星环境工程研究所 | Distribution, redundancy structure control system for ultra-large type space simulator |
-
2010
- 2010-10-25 CN CN2010205750730U patent/CN201820139U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012055165A1 (en) * | 2010-10-25 | 2012-05-03 | 京仪华文自动化系统工程（上海）有限公司 | Distribution control system with layered controllers |
| CN102385362A (en) * | 2011-09-14 | 2012-03-21 | 无锡市星亿涂装环保设备有限公司 | Remote control method, device and system |
| CN102866690A (en) * | 2012-09-18 | 2013-01-09 | 南京国电南自美卓控制系统有限公司 | Redundancy switching method among redundancy process control stations in distributed control system |
| CN102866690B (en) * | 2012-09-18 | 2015-09-23 | 南京国电南自美卓控制系统有限公司 | Redundancy switching method between Redundant process control station in scattered control system |
| CN109324586A (en) * | 2018-11-28 | 2019-02-12 | 北京国电龙源环保工程有限公司 | For the Predictive Control System and its control method of quick change system |
| CN109884880A (en) * | 2019-03-29 | 2019-06-14 | 北京卫星环境工程研究所 | Distribution, redundancy structure control system for ultra-large type space simulator |
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