CN103064382B - Optical proximity correction (OPC) embedded-type remote data collecting system and method based on ARM framework - Google Patents
Optical proximity correction (OPC) embedded-type remote data collecting system and method based on ARM framework Download PDFInfo
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- 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
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Abstract
An optical proximity correction (OPC) embedded-type remote data collecting system and a method based on ARM framework comprise an OPC client, an OPC server, a communication server, a real-time database and a data processing module. The invention provides an OPC embedded-type remote data collecting system based on ARM framework, remote data collecting from an industrial control network is achieved and the collected data is sent to the real-time database of a managerial network. Due to the fact that the industrial control network and the managerial network are safely isolated from a hardware architecture and an operating system, virus on the managerial network is prevented from attacking the industrial control network and the safety of the industrial control network is guaranteed. The OPC embedded-type remote data collecting system based on ARM framework is multifunctional system integrating the data collecting and the security isolation.
Description
Technical field
The present invention relates to data acquisition technology field, particularly relate to a kind of OPC Embedded Remote Data Collecting System based on ARM framework.
Background technology
In industrial control field, system is often made up of the subsystems disperseed, and what subsystems adopted is the equipment of different manufacturers, due to the standard that the interface between the driver of hardware and connected application program is ununified, need to develop different drivers.Due to the various driver that coexists in system, also make the stability of maintenance operating conditions and reliability more difficult, OPC makes the software interface standard between the equipment of different supplier and application program.
OPC and OLE (ObjectLinking and Embedding) is for industrial control field communication interface standard, and it provides standard set interface, attribute and method for process control.The appearance of OPC makes the Devices and Drivers of different vendor to carry out neatly connecting and information interaction, thus substantially increases opening and the interoperability of process controller and data acquisition system (DAS).But OPC technology is based on the OLE/COM technology of Microsoft company, application is still confined to Windows operating system platform substantially.
Current, industrial control system is to Industrial Ethernet structural development, and opening is more and more stronger.OPC technology based on TCP/IP ethernet communication is used widely in this field.Existing is all for platform with X86 hardware structure based on the OPC client-side technology under (SuSE) Linux OS, with supervising the network, there is identical hardware structure, thus virus can utilize this leak to attack industrial control network easily, makes the safety of industrial control network be subject to very large threat.
Summary of the invention
The invention provides a kind of OPC Embedded Remote Data Collecting System based on ARM framework, can realize from industry control network remote data acquisition, and image data is uploaded to the real-time data base of managerial grid.The present invention, from Secure isolation industry computer and managerial grid hardware structure and operating system, can defend the virus on managerial grid to the attack of industry control network, ensures the safety of industry computer.The present invention is a multifunction system integrating data acquisition and Secure isolation.
For achieving the above object, the present invention is achieved by the following technical solutions: a kind of OPC Embedded Remote Data Collecting System based on ARM framework, it is characterized in that it comprises: OPC client, opc server, communication server, real-time data base and data processing module, described data processing module is by the data on the data collecting module collected opc server of OPC client, and send to real-time data base by communication server, described data processing module comprises ARM microprocessor, power supply/reset circuit, UI circuit, DDR2RAM, NANDFLASH, one TCP interface, 2nd TCP interface, RS232/485 interface, RS232 debugging interface, operation and maintenance tools and configuration tool, described ARM microprocessor is responsible for supervision and the control of whole communication converter, the signal output part of power supply/reset circuit is connected with the signal input part of ARM microprocessor, the signal output part of ARM microprocessor is connected with the signal input part of UI circuit, and ARM microprocessor is also connected with RS232 debugging interface with DDR2RAM, NANDFLASH, a TCP interface, the 2nd TCP interface, RS232/485 interface, data processing module is connected by a TCP Interface and Communication server, and data processing module is also connected with opc server by the 2nd TCP interface.
Based on an OPC Embedded Remote Data Collecting System for ARM framework, it is characterized in that, the collecting method of this system is realized by following steps:
(1) operational system, power supply/reset circuit provides power supply needed for the work of system modules, and the whole system that resets, run institute's solidification software code in NAND FLASH;
(2), after system is normally run, carry out parameter configuration by configuration tool, mainly comprise:
The information such as ID numbering (CLASS ID) of the IP address (OPC SERVER IP) of server, the title (PRGID) of equipment, equipment, the username and password of distributed Component Object Model (DCOM);
The label roll-call gathered, data type, source label information;
Equipment maximum permission configuration collection point, equipment allows image data type, communication packet form and collection period;
(3) configuration tool is issued to OPC client-side data acquisition module by a TCP interface configuration file, and runs OPC client-side data acquisition module;
(4) by sending to communication server based on the data on the OPC embedded remote data collecting module collected opc server of ARM framework;
(5) obtained data are sent to real-time data base by communication server.
The described method based on the data on the OPC embedded remote data collection data module acquires opc server of ARM framework comprises the following steps:
(1) OPC client-side data acquisition module detects opc server end state: OPC client, according to configured opc server information, creates the connection with opc server, and whether judges the state of opc server according to this successful connection; If normal, then start to add group and label point to opc server according to configured group information and label point information, after this according to the collection period of configuration, real time data and state in collection opc server end, and be assembled into protocol massages and be ready for sending; If this connection failure, then regularly re-create this connection, till success;
(2) detect the communication state of data processing module and communication server, if communication is normal, the protocol massages after data acquisition module assembling to be uploaded to the communication platform on communication server by data transmission blocks by a TCP interface; If communication state is abnormal, this equipment is by gathered data buffer storage to data cached module, and wait resends;
(3), after communication recovers, system uploads to communication server by data cached successively.
Obtained data are sent to the method for real-time data base by described communication server, adopt the method for multithreading to realize, specifically comprise the following steps:
(1) communication platform on communication server is by the data message of data transmission blocks in the first TCP communication interface data processing module, and verification receives security and the integrality of data message;
(2) carry out Data Analysis according to the message format configured and by data stored in pending data cached in;
(3) from data cached, send data according to the order of sequence, call different real time data bank interfaces and data are sent to real-time data base.
The described message format configured comprises: heading, text, verification, and wherein data text comprises data and the state of collection point.
Described ARM microprocessor comprises: Configuration Manager, operational management module, data acquisition module, gather sending module, data cache module, clock synchronization module and watchdog module, described data acquisition module passes through a TCP interface with OPC ad hoc mode from the opc server end image data industrial control network, the signal output part of data acquisition module is connected with the signal input part gathering sending module, gather the signal output part of sending module to be connected with the signal input part of real-time data base, gather sending module to be also connected with data cache module, when gathering the communication abnormality of sending module and administration and supervision authorities, data acquisition module sends the data to data cache module by gathering sending module.
What described ARM microprocessor adopted is AT91SAM9G45 chip.
Described UI circuit is provided with pilot lamp, and after system configuration success, UI circuit is by this pilot lamp display configuration successful.
Described Secure isolation function is the ARM framework and built-in Linux operating system that are adopted by this equipment, there is essence different from the X86-based of widespread use and the PC of Windows operating system in the system such as the production executive system (MES) in supervising the network, the Distributed Control System (DCS) (DCS) in industry control network, the program can run at PC cannot be run on this equipment, the rogue program that is can infect PC cannot run on this equipment, thus ensures that rogue program cannot be propagated between supervising the network and net control by this equipment.
ARM microprocessor is responsible for supervision and the control of whole communication converter.
Power supply/reset circuit provides power supply and reseting logic for communication converter, and wherein reset circuit realizes external reset function when converter system collapses.
Various duties when UI circuit is the operation of user's prompt facility.
DDR2 RAM provides memory headroom for system cloud gray model.
NAND FLASH as external memory storage, for system cures code, power down preserve data storage space is provided.
Configuration tool is for configuring Information Monitoring, facility information and communication information, and the online fetch equipment configuration information of energy.
Operation and maintenance tools, for monitoring the Information Monitoring of this equipment of interconnection network, communication information and corresponding running log, having right of execution in limited time, can reset or restart this equipment.
Data acquisition module, is gathered on industry control network the data of the OPC SERVER taking DCS as representative, and organizes data according to the collection point information of configuration by OPC agreement.
Data transmission blocks, assembling image data message also to send datagram real-time data base according to the communication information of configuration.When there is exception with real-time data base communication, this equipment to local by data buffer storage function buffer memory image data, after communication recovers, sent interval in real time data and sends data cached.
Operational management module, for control the startup of master routine and stopping, control clock Synchronization procedure start perform, opertaing device resets and restarts and monitor each module ruuning situation of each master routine.
Configuration Manager, by resolving configuration file, obtains configuration information.
Present invention achieves the OPC embedded remote data acquisition based on ARM, specifically, the present invention has following beneficial effect:
(1) achieve the OPC embedded remote data acquisition based on ARM, achieve OPC client based on the application under ARM framework.
(2) the present invention is different from X86-based conventional in management information network and Windows system platform on hardware structure and operating system, effectively industrial control network and supervising the network are isolated, defend the attack from supervising the network virus and invasion, achieve the function of net control Secure isolation virus.
(3) in the real-time data base communication process of data processing module of the present invention and administration and supervision authorities, networking is detected by communication platform, during as there is Network Abnormal, this equipment can the data of the unsuccessful communication of buffer memory in the machine, and after this network recovery is normal, send the data of unsuccessful communication, ensure the integrality of data.
Accompanying drawing explanation
Fig. 1 is the acquisition method schematic diagram of the OPC Embedded Remote Data Collecting System based on ARM framework.
Fig. 2 is the structural representation of the data processing module of OPC Embedded Remote Data Collecting System based on ARM framework.
Fig. 3 is the arm processor construction module figure of the OPC Embedded Remote Data Collecting System based on ARM framework.
Fig. 4 is the schematic diagram of the embodiment of OPC Embedded Remote Data Collecting System based on ARM framework.
Embodiment
Below in conjunction with instantiation and accompanying drawing, the present invention is described in detail, and in the present embodiment, ARM microprocessor adopts AT91SAM9G45.
As shown in the figure, based on the OPC Embedded Remote Data Collecting System of ARM framework, it comprises: OPC client, opc server, communication server, real-time data base and data processing module, described data processing module is by the data on the data collecting module collected opc server of OPC client, and send to real-time data base by communication server, described data processing module comprises ARM microprocessor, power supply/reset circuit, UI circuit, DDR2RAM, NANDFLASH, one TCP interface, 2nd TCP interface, RS232/485 interface, RS232 debugging interface, operation and maintenance tools and configuration tool, described ARM microprocessor is responsible for supervision and the control of whole communication converter, the signal output part of power supply/reset circuit is connected with the signal input part of ARM microprocessor, the signal output part of ARM microprocessor is connected with the signal input part of UI circuit, and ARM microprocessor is also connected with RS232 debugging interface with DDR2RAM, NANDFLASH, a TCP interface, the 2nd TCP interface, RS232/485 interface, data processing module is connected by a TCP Interface and Communication server, and data processing module is also connected with opc server by the 2nd TCP interface.
Described ARM microprocessor comprises: Configuration Manager, operational management module, data acquisition module, gather sending module, data cache module, clock synchronization module and watchdog module, described data acquisition module passes through a TCP interface with OPC ad hoc mode from the opc server end image data industrial control network, the signal output part of data acquisition module is connected with the signal input part gathering sending module, gather the signal output part of sending module to be connected with the signal input part of real-time data base, gather sending module to be also connected with data cache module, when gathering the communication abnormality of sending module and administration and supervision authorities, data acquisition module sends the data to data cache module by gathering sending module.
The structure of the field network that this example is implemented is divided into key-course and administration and supervision authorities from bottom to top, and the present invention's equipment is between key-course and administration and supervision authorities.Key-course comprises a Yokogawa scattered control system (Yokogawa DCS), its server is provided with Yokogawa opc server (Yokogawa.Exaopc OPC SERVER); Administration and supervision authorities are made up of the IP21 real-time data base of configuration tool, operation platform, AspenTech company, and the specific implementation step that this example is implemented is as follows:
(1), after device power, power supply/reset circuit provides each road power supply needed for equipment work, and the whole system that resets, run institute's solidification software code in NAND FLASH, operational system;
(2), after system is normally run, carry out parameter configuration by configuration tool, mainly comprise:
The information such as ID numbering (CLASS ID) of the IP address (OPC SERVER IP) of server, the title (PRGID) of equipment, equipment, the username and password of distributed Component Object Model (DCOM), as shown in table 1;
Table 1
Maximum permission collection point is set to 3000, and collection period is 15s;
Equipment allows image data type configuration to be analog quantity, switching value and amount of text, and this example is only for an analog quantity and a switching value, as shown in table 2;
Table 2
| Call the roll | Data type | Source label |
| A.SL.1PE.AC2212_1.PV | Analog quantity | AC2212_1.PV |
| A.SL.1PE.Z411.PVFL | Switching value | Z411.PVFL |
(3) configuration tool is issued to data acquisition equipment by a TCP interface configuration file, after being successfully completed configuration, and startup optimization data acquisition equipment;
(4) data acquisition module detects opc server end state, if normal, starts to gather real time data and state in opc server end, and is assembled into protocol massages and is ready for sending;
(5) protocol massages after data acquisition module assembling is uploaded to the real-time data base of administration and supervision authorities by data transmission blocks by a TCP interface;
(6) operation platform is run by a TCP interface monitoring equipment, and operation platform can issue orders such as stopping collection, collection point test, restarting equipment to collecting device, and can check running log system;
(7) after opc server end breaks down, equipment automatically can start after the fault recovery of opc server end; When communication failure appears in the real-time data base communication in equipment and managerial grid, data cached module starts data cached, and after communication recovers, equipment will upload to real-time data base by data cached successively.
Claims (7)
1. the OPC Embedded Remote Data Collecting System based on ARM framework, it is characterized in that it comprises: OPC client, opc server, communication server, real-time data base and data processing module, described data processing module is by the data on the data collecting module collected opc server of OPC client, and send to real-time data base by communication server, described data processing module comprises ARM microprocessor, power supply/reset circuit, UI circuit, DDR2 RAM, NANDFLASH, one TCP interface, 2nd TCP interface, RS232/485 interface, RS232 debugging interface, operation and maintenance tools and configuration tool, described ARM microprocessor is responsible for supervision and the control of whole communication converter, the signal output part of power supply/reset circuit is connected with the signal input part of ARM microprocessor, the signal output part of ARM microprocessor is connected with the signal input part of UI circuit, and ARM microprocessor is also connected with RS232 debugging interface with DDR2 RAM, NANDFLASH, a TCP interface, the 2nd TCP interface, RS232/485 interface, data processing module is connected by a TCP Interface and Communication server, and data processing module is also connected with OPC server by the 2nd TCP interface.
2., based on an OPC embedded remote collecting method for ARM framework, application rights requires the OPC Embedded Remote Data Collecting System based on ARM framework described in 1, and it is characterized in that, this collecting method is realized by following steps:
(1) operational system, power supply/reset circuit provides power supply needed for the work of system modules, and the whole system that resets, run institute's solidification software code in NAND FLASH;
(2), after system is normally run, carry out parameter configuration by configuration tool, mainly comprise:
The IP address OPC SERVER IP of server, the title PRGID of equipment, the mark CLASS ID of server, the username and password information of distributed Component Object Model DCOM;
The label roll-call gathered, data type, source label information;
Equipment maximum permission configuration collection point, equipment allows image data type, communication packet form and collection period;
(3) configuration tool is issued to OPC client-side data acquisition module by a TCP interface configuration file, and runs OPC client-side data acquisition module;
(4) by sending to communication server based on the data on the OPC embedded remote data collecting module collected opc server of ARM framework;
(5) obtained data are sent to real-time data base by communication server.
3. the OPC embedded remote collecting method based on ARM framework according to claim 2, is characterized in that, the described method based on the data on the OPC embedded remote data collecting module collected opc server of ARM framework comprises the following steps:
(1) OPC client-side data acquisition module detects OPC server end state: OPC client, according to configured OPC server info, creates the connection with OPC server, and whether judges the state of OPC server according to this successful connection; If normal, then start to add group and label point to OPC server according to configured group information and label point information, after this according to the collection period of configuration, real time data and state in collection OPC server end, and be assembled into protocol massages and be ready for sending; If this connection failure, then regularly re-create this connection, till success;
(2) detect the communication state of data processing module and communication server, if communication is normal, the protocol massages after data acquisition module assembling to be uploaded to the communication platform on communication server by data transmission blocks by a TCP interface; If communication state is abnormal, this equipment is by gathered data buffer storage to the data cached module in communication server, and wait resends;
(3), after communication recovers, system uploads to communication server by data cached successively.
4. the OPC embedded remote collecting method based on ARM framework according to claim 2, it is characterized in that, obtained data are sent to the method for real-time data base by described communication server, adopt the method for multithreading to realize, specifically comprise the following steps:
(1) communication platform on communication server is by the data message of data transmission blocks in the first TCP communication interface data processing module, and verification receives security and the integrality of data message;
(2) carry out Data Analysis according to the message format configured and by data stored in pending data cached in;
(3) from data cached, send data according to the order of sequence, call different real time data bank interfaces and data are sent to real-time data base.
5. the OPC embedded remote collecting method based on ARM framework according to claim 4, it is characterized in that: obtained data are sent in the method for real-time data base by communication server, the described message format configured comprises: heading, text, verification, and wherein data text comprises data and the state of collection point.
6. the OPC Embedded Remote Data Collecting System based on ARM framework according to claim 1, it is characterized in that: described ARM microprocessor comprises: Configuration Manager, operational management module, data acquisition module, gather sending module, data cache module, clock synchronization module and watchdog module, described data acquisition module passes through a TCP interface with OPC ad hoc mode from the OPC server end image data industrial control network, the signal output part of data acquisition module is connected with the signal input part gathering sending module, gather the signal output part of sending module to be connected with the signal input part of real-time data base, gather sending module to be also connected with data cache module, when gathering the communication abnormality of sending module and administration and supervision authorities, data acquisition module sends the data to data cache module by gathering sending module.
7. the OPC Embedded Remote Data Collecting System based on ARM framework according to claim 1, is characterized in that: what described ARM microprocessor adopted is AT91SAM9G45 chip.
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