CN104503325A - Distributed intelligent main control unit - Google Patents
Distributed intelligent main control unit Download PDFInfo
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- CN104503325A CN104503325A CN201410792232.5A CN201410792232A CN104503325A CN 104503325 A CN104503325 A CN 104503325A CN 201410792232 A CN201410792232 A CN 201410792232A CN 104503325 A CN104503325 A CN 104503325A
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- 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
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0421—Multiprocessor system
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Abstract
The invention discloses a distributed intelligent main control unit. The distributed intelligent main control unit comprises a power supply module for system power supply, a processing unit, an HMI (Human Machine Interface) unit, a communication unit, a storage unit and a co-processing unit, wherein the communication unit specifically comprises a COM (Component Object Model) module, a CAN (Control Area Network) module and an ETH (Ethernet) module. The distributed intelligent main control unit adopts a bus-type structure design and is provided with a serial port (RS232/RS485), a CAN network port, an Ethernet network port and the like, and an interface is expanded by a bus so as to support extension. The master control unit has basic data acquisition and control functions, and supports multiple standard specification protocols, such as an Modbus RTU (Remote Terminal Unit), Modbus ASCII (American Standard Code for Information Interchange), Modbus RTU over TCP (Transmission Control Protocol), Modbus ASCII over TCP, OPC (OLE (Object Linking and Embedding) for Process Control), DL451, DL/T634(IEC60870 series), DL/T645 and IEC61850. The distributed intelligent main control unit supports the extension of third party data transmission specifications based on C language.
Description
Technical field
The invention discloses a kind of distributed intelligence main control unit, relate to industrial data collection technical field.
Background technology
For in industrial environment, the commercial unit of user data data acquisition and controlling is called as main control unit.Main control unit possesses the physical communication links such as network, serial port, fieldbus port and gathers control object (equipment) with industry and carry out communicating and obtain data, send the functions such as steering order.
General main control unit adopts the design centered by processor or single-chip microcomputer, the port such as integrated network, serial, the built-in data communication handling procedure write, and adjusts communication process by changing parameter.When running into new data communication specification or original data communication handling procedure can not meet, main control unit manufacturer is just needed to regroup data communication handling procedure and download in main control unit.
Reliability for data acquisition and control is set out, and two main control units often can be used in industrial environment to carry out redundancy backup.Meanwhile, in order to prevent the conflict of physical link, often meeting additional configuration binary channels switch carries out the switching of physical channel.Guarantee to only have a main control unit that physical link can be taken by binary channels switch.
Summary of the invention
Technical matters to be solved by this invention is: for the defect of prior art, a kind of distributed intelligence main control unit is provided, this main control unit adopts bus-organization design, possess serial port (RS232/RS485), CAN network port, Ethernet port etc., and interface expansion can be carried out to support expansion by bus.This main control unit possesses basic data acquisition and controlling functions, supports the multiple standards specification protocol such as Modbus RTU, Modbus ASCII, Modbus RTU over TCP, Modbus ASCII over TCP, OPC, DL451, DL/T634 (IEC60870 series), DL/T645, IEC61850.Support the expansion of the third party's data transmission specification based on C language simultaneously.
The present invention is for solving the problems of the technologies described above by the following technical solutions:
A kind of distributed intelligence main control unit, comprise the power module for system power supply, also comprise processing unit, HMI unit, communication unit, storage unit and association's processing unit, wherein, described communication unit specifically comprises COM module, CAN module and ETH module, described processing unit carries out normalization to the data that communication unit receives, and is sent in storage unit by the data after normalized; Processing unit is also in order to realize converting the data in storage unit the form of industrial requirements to and sending to its exterior; Described HMI unit is in order to realize man-machine interaction; In described communication unit, COM module installation has com interface, in order to realize carrying out communication, COM module between the acquisition target that system peripheral is equipped with serial communication modular; CAN module is equipped with between the acquisition target of CAN network communication module in order to realization and system peripheral carries out communication; ETH module installation has ETH interface, and realization and system peripheral are equipped with the communication between the acquisition target of ethernet communication module; Described storage unit is in order to store the data through master control processing unit normalized; Use during the distributed intelligence main control unit collaborative work of described association processing unit for more than two, association's processing unit controls the state of communication unit according to the state of distributed intelligence main control unit; Distributed intelligence main control unit controls communication unit, makes itself and acquisition target use identical communications protocol, by the data acquisition of acquisition target to main control unit, and stores in the memory unit; Described distributed intelligence main control unit adopts distributed AC servo system design, a plurality of main control unit collaborative work, take over to each other other main control units the communication task be responsible for.
As present invention further optimization scheme, system also comprises independent Collaborative Control microprocessor, described Collaborative Control microprocessor is by monitoring that clustering controls link heartbeat, determine link working state, and the relay switch controlling the setting of each communication link physical interface is accordingly kept apart on standby link interface physical with primary link.
As present invention further optimization scheme, the serial port module communication interface that described com interface is corresponding is set to RS232, RS485 or RS422 via wire jumper.
As present invention further optimization scheme, the quantity of described COM module is 1 to 8, and each COM module installation has 2 com ports.
As present invention further optimization scheme, the quantity of described ETH interface is 1 to 6.
As present invention further optimization scheme, the memory capacity of described storage unit is 2GB.
The present invention adopts above technical scheme compared with prior art, has following technique effect:
The present invention relative to relative to prior art, has following technique effect:
Present invention achieves the modular design of the physical arrangement of main control unit, and divide the type of physical module, the communication control process on such upper strata just achieves unified standardization.Software just can allow when running into new data communication specification protocol or expanding original agreement, only need to write corresponding software enlargement module by C language, and do not need the control software design resetting whole main control unit;
Present invention achieves multiple stage main control unit to control the multi-machine collaborative of same acquisition target (equipment), and can when main control unit fault or single treatment progress fault, automatically switch primary communication link, improves availability and the stability of communication process.When coordinating the coprocessor of main control unit to control physical communication link interface, what can solve physical interface can not the problem of multiple connection.
Accompanying drawing explanation
Fig. 1 is the arrangement plan of distributed intelligence main control unit in the present invention.
Fig. 2 is the power module arrangement plan of described distributed intelligence main control unit.
Fig. 3 is the internal data connection layout of described distributed intelligence main control unit.
Fig. 4 is in a specific embodiment of the present invention, two line interface control principle drawings of distributed intelligence main control unit.
Fig. 5 is in a specific embodiment of the present invention, the four-wire interface control principle drawing of distributed intelligence main control unit.
Embodiment
Be described below in detail embodiments of the present invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:
In the present invention, the arrangement plan of distributed intelligence main control unit as shown in Figure 1, described distributed intelligence main control unit, comprise the power module for system power supply, also comprise processing unit, HMI unit, communication unit, storage unit and association's processing unit, wherein, described communication unit specifically comprises COM module, CAN module and ETH module, and described processing unit carries out normalization to the data that communication unit receives, and is sent in storage unit by the data after normalized; Processing unit is also in order to realize converting the data in storage unit the form of industrial requirements to and sending to its exterior; Described HMI unit is in order to realize man-machine interaction; In described communication unit, COM module installation has com interface, in order to realize carrying out communication, COM module between the acquisition target that system peripheral is equipped with serial communication modular; CAN module is equipped with between the acquisition target of CAN network communication module in order to realization and system peripheral carries out communication; ETH module installation has ETH interface, and realization and system peripheral are equipped with the communication between the acquisition target of ethernet communication module; Described storage unit is in order to store the data through master control processing unit normalized; Use during the distributed intelligence main control unit collaborative work of described association processing unit for more than two, association's processing unit controls the state of communication unit according to the state of distributed intelligence main control unit.
The internal data connection layout of described distributed intelligence main control unit as shown in Figure 3, distributed intelligence main control unit controls communication unit, make itself and acquisition target use identical communications protocol, by the data acquisition of acquisition target to main control unit, and store in the memory unit; Described distributed intelligence main control unit adopts distributed AC servo system design, a plurality of main control unit collaborative work, take over to each other other main control units the communication task be responsible for.
Processing unit (MCPU), this unit is the core of master control, and the data received by communication unit make normalization, then normalized data is stored in storage unit.The form that also data of storage unit can be converted to industrial requirements sends from master control.
As shown in Figure 2, external power source is converted to the working power of CPU module to the power module arrangement plan of described distributed intelligence main control unit by power supply (PW).Each main control unit configurable one group or two groups of power modules.Two-way power supply can be powered simultaneously, realizes automatic seamless switch when a road power supply disappears.
HMI unit, this unit realizes the dialogue between operator and master control, and by the state of master control, reality is in front of the user intuitively.
Communication unit, can comprise COM module, CAN module and ETH module.
COM module, realizes the communication between the on-the-spot smart machine being with serial ports.Serial port module communication interface is set to RS232, RS485, RS422 by wire jumper.Each COM modular belt 2 com ports, can increase or reduce the configuration of COM module according to actual needs, the maximum support of this main control unit 8 COM modules, i.e. 16 com ports.Two lines, the four-wire interface control principle drawing of distributed intelligence main control unit are distinguished as shown in Figure 4, Figure 5.
CAN module, realizes the communication between the on-the-spot smart machine being with CAN network.
ETH module, realizes the communication between the on-the-spot smart machine being with network.This main control unit carries 1 ETH mouth, is defined as ETH0, and can expand according to actual needs, maximum easily extensible 6 ETH mouths.
Storage unit (RAM), stores the normalization data of master control processing unit processes.This main control unit carries 2G and stores, and can follow according to actual needs expansion exterior storage.
Association's processing unit (CCPU), needs configuration association processing unit when needs more than two master control collaborative works.Association's processing unit controls the state of communication unit according to the state of main control unit.
In the present invention, data acquisition according to internal data connection layout, as shown in Figure 2:
The configurable employing com port of main control unit, CAN mouth are connected with site intelligent acquisition target (equipment) IED with ETH mouth, adopt the communications protocol identical with intelligent acquisition object (equipment) IED, by the data acquisition at scene to main control unit, and be stored in storage unit (RAM).Also the order that control system issues can be sent to intelligent acquisition object (equipment) IED simultaneously.
In data forwarding process, the configurable employing com port of main control unit, CAN mouth and ETH mouth are connected with control system (CS), adopt the communications protocol identical with control system (CS), by main control unit collection and the data of storage send control system (CS) to.
In the present invention, main control unit have employed distributed AC servo system design, allows to possess the collaborative work of multiple stage main control unit in a network.When the main control unit of in cluster breaks down out of service, other unit take over this main control unit the communication task be responsible for.
Independent Collaborative Control microprocessor is all provided with in every platform main control unit.Collaborative Control microprocessor, by monitoring that clustering controls link heartbeat, determines link working state, and the relay switch controlling the setting of each communication link physical interface is accordingly kept apart on standby link interface physical with primary link.
By reference to the accompanying drawings embodiments of the present invention are explained in detail above, but the present invention is not limited to above-mentioned embodiment, in the ken that those of ordinary skill in the art possess, can also makes a variety of changes under the prerequisite not departing from present inventive concept.The above, it is only preferred embodiment of the present invention, not any pro forma restriction is done to the present invention, although the present invention discloses as above with preferred embodiment, but and be not used to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, make a little change when the technology contents of above-mentioned announcement can be utilized or be modified to the Equivalent embodiments of equivalent variations, in every case be do not depart from technical solution of the present invention content, according to technical spirit of the present invention, within the spirit and principles in the present invention, to any simple amendment that above embodiment is done, equivalent replacement and improvement etc., within the protection domain all still belonging to technical solution of the present invention.
Claims (6)
1. a distributed intelligence main control unit, it is characterized in that: comprise the power module for system power supply, also comprise processing unit, HMI unit, communication unit, storage unit and association's processing unit, wherein, described communication unit specifically comprises COM module, CAN module and ETH module, described processing unit, storage unit and association's processing unit are interconnected with one another by inner high speed bus, and described processing unit and communication unit are interconnected by internal communication bus
Described processing unit carries out normalization to the data that communication unit receives, and is sent in storage unit by the data after normalized; Processing unit is also in order to realize converting the data in storage unit the form of industrial requirements to and sending to its exterior;
Described HMI unit is in order to realize man-machine interaction;
In described communication unit, COM module installation has com interface, in order to realize carrying out communication, COM module between the acquisition target that system peripheral is equipped with serial communication modular;
CAN module is equipped with between the acquisition target of CAN network communication module in order to realization and system peripheral carries out communication;
ETH module installation has ETH interface, and realization and system peripheral are equipped with the communication between the acquisition target of ethernet communication module;
Described storage unit is in order to store the data through master control processing unit normalized;
Use during the distributed intelligence main control unit collaborative work of described association processing unit for more than two, association's processing unit controls the state of communication unit according to the state of distributed intelligence main control unit;
Distributed intelligence main control unit controls communication unit, makes itself and acquisition target use identical communications protocol, by the data acquisition of acquisition target to main control unit, and stores in the memory unit; Described distributed intelligence main control unit adopts distributed AC servo system design, a plurality of main control unit collaborative work, take over to each other other main control units the communication task be responsible for.
2. a kind of distributed intelligence main control unit as claimed in claim 1, it is characterized in that: also comprise independent Collaborative Control microprocessor, described Collaborative Control microprocessor is by monitoring that clustering controls link heartbeat, determine link working state, and the relay switch controlling the setting of each communication link physical interface is accordingly kept apart on standby link interface physical with primary link.
3. a kind of distributed intelligence main control unit as claimed in claim 1 or 2, is characterized in that: the serial port module communication interface that described com interface is corresponding is set to RS232, RS485 or RS422 via wire jumper.
4. a kind of distributed intelligence main control unit as claimed in claim 3, it is characterized in that: the quantity of described COM module is 1 to 8, each COM module installation has 2 com ports.
5. a kind of distributed intelligence main control unit as claimed in claim 1 or 2, is characterized in that: the quantity of described ETH interface is 1 to 6.
6. a kind of distributed intelligence main control unit as claimed in claim 1 or 2, is characterized in that: the memory capacity of described storage unit is 2GB.
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| CN201410792232.5A CN104503325A (en) | 2014-12-19 | 2014-12-19 | Distributed intelligent main control unit |
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| CN107450487A (en) * | 2016-05-31 | 2017-12-08 | 布里斯托公司商用名远程自动化解决方案 | The method and apparatus that communication is realized via remote-terminal unit |
| CN109839867A (en) * | 2017-11-29 | 2019-06-04 | 中国科学院沈阳自动化研究所 | Manned underwater vehicle man-machine interaction control device |
| CN110618643A (en) * | 2019-10-25 | 2019-12-27 | 四川诚邦浩然测控技术有限公司 | High-performance measurement and control system |
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