CN103064382A - 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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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 the data acquisition technology field, relate in particular to a kind of OPC Embedded Remote Data Collecting System based on the ARM framework.
Background technology
In industrial control field, system often is made of the subsystems that disperses, and what subsystems adopted is the equipment of different manufacturers, because the driver of hardware and the interface between the connected application program do not have unified standard, needs the different driver of exploitation.Because the various drivers of coexistence in the system also make stability and the reliability of safeguarding the running environment more difficult, OPC makes different suppliers' equipment and the software interface standard between the application program.
OPC is that OLE (ObjectLinking and Embedding) is used for communication interface standard of industrial control field, and it provides standard set interface, attribute and method for process control.The appearance of OPC so that the Devices and Drivers of different vendor can connect neatly and information interaction, thereby greatly improved opening and the interoperability of process controller and data acquisition system (DAS).But the OPC technology is used and basically still is confined to the Windows operating system platform take the OLE/COM technology of Microsoft company as the basis.
Current, industrial control system is to the Industrial Ethernet structural development, and opening is more and more stronger.OPC technology based on the TCP/IP ethernet communication is used widely in this field.Existing all is as platform take the X86 hardware structure based on the OPC client-side technology under the (SuSE) Linux OS, has identical hardware structure with supervising the network, thereby virus can utilize this leak to attack easily industrial control network, 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 the ARM framework, can realize from the industry control network remote data acquisition, and image data is uploaded to the real-time data base of managerial grid.The present invention is safety isolation industry control net and managerial grid on hardware structure and the operating system, can defend virus on the managerial grid to the attack of industry control network, guarantees the safety of industry control net.The present invention is the multifunction system that the data acquisition of a collection and safety are isolated from one.
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 the ARM framework, it is characterized in that it comprises: the 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 sending to real-time data base by communication server, described data processing module comprises the ARM microprocessor, power supply/reset circuit, the UI circuit, DDR2RAM, NANDFLASH, the one TCP interface, the 2nd TCP interface, the RS232/485 interface, the 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 links to each other with the signal input part of ARM microprocessor, the signal output part of ARM microprocessor links to each other with the signal input part of UI circuit, and the ARM microprocessor also is connected with the 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 also is connected with opc server by the 2nd TCP interface.
A kind of OPC Embedded Remote Data Collecting System based on the ARM framework is characterized in that the collecting method of this system is realized by following steps:
(1) operational system, power supply/reset circuit provide system's modules work required power supply, and the whole system that resets, institute's solidification software code among the operation NAND FLASH;
(2) after the normal operation of system, carry out parameter configuration by configuration tool, mainly comprise:
The information such as username and password of the title (PRGID) of the IP address of server (OPC SERVER IP), equipment, the ID of equipment numbering (CLASS ID), distributed establishment object model (DCOM);
The label roll-call that gathers, data type, source label information;
The maximum configuration collection point that allows of equipment, equipment allows image data type, communication packet form and collection period;
(3) configuration tool is issued to OPC client data acquisition module to configuration file by a TCP interface, and operation OPC client 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) communication server sends to real-time data base with the data that obtain.
The method that described OPC embedded remote data acquisition data module based on the ARM framework gathers the data on the opc server may further comprise the steps:
(1) OPC client data acquisition module detects opc server end state: the OPC client is according to configuration opc server information, and establishment is connected with opc server, and whether judges the state of opc server according to this successful connection; If normal, then begin interpolation group and label point according to the group information that disposes and label point information to opc server, after this according to the collection period of configuration, gather the interior real time data of opc server end and state, and it is assembled into protocol massages is ready for sending; If this connection failure then regularly creates this connection again, until till the success;
(2) communication state of detection data processing module and communication server, if communication is normal, the protocol massages after data transmission blocks is assembled data acquisition module by a TCP interface uploads to the communication platform on the communication server; If communication state is unusual, to data cached module, wait resends this equipment with the data buffer storage that gathers;
(3) after communication recovered, system was successively with the data cached communication server that uploads to.
Described communication server sends to the method for real-time data base with the data that obtain, and adopts the method for multithreading to realize, specifically comprises the steps:
(1) communication platform on the communication server is by the data message of data transmission blocks in the TCP communication interface receive data processing module, the security of verification receiving data packets and integrality;
(2) according to the message format that has disposed carry out Data Analysis and with data deposit in pending data cached in;
(3) from data cached, send according to the order of sequence data, call different real time data bank interfaces data are sent to real-time data base.
The described message format that has disposed comprises: heading, text, verification, wherein the data text comprises data and the state of collection point.
Described ARM microprocessor comprises: Configuration Manager, the 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 the opc server end image data of OPC client mode from industrial control network, the signal output part of data acquisition module links to each other with the signal input part that gathers sending module, the signal output part that gathers sending module links to each other with the signal input part of real-time data base, gathering sending module also links to each other 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 the AT91SAM9G45 chip.
Be provided with pilot lamp on the described UI circuit, after the system configuration success, the UI circuit shows configuration successful by this pilot lamp.
Described safe isolation features is ARM framework and the built-in Linux operating system that adopts by this equipment, there is essence different from the X86-based of widespread use in production executive system (MES) in the supervising the network, the systems such as Distributed Control System (DCS) (DCS) in the industry control network and the PC of Windows operating system, can can't move at this equipment in the program of PC operation, that is to say that the rogue program that can infect PC can't move at this equipment, thereby the assurance rogue program can't be propagated between supervising the network and control network by this equipment.
The 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 is realized the external reset function when converter system collapses.
Various duties when the UI circuit moves for user's prompt facility.
DDR2 RAM provides memory headroom for system's operation.
NAND FLASH is as external memory storage, for code is solidified in system, the power down save data provides storage space.
Configuration tool is used for configuration Information Monitoring, facility information and communication information, and can online fetch equipment configuration information.
Operation and maintenance tools be used for to monitor Information Monitoring, communication information and the corresponding running log of this equipment of interconnection network, have right of execution in limited time, can reset or restart this equipment.
Data acquisition module gathers the data of the OPC SERVER take DCS as representative on the industry control network by the OPC agreement, and according to the collection point information of configuration data is organized.
Data transmission blocks, assembling image data message and according to the communication information real-time data base that sends datagram of configuration.When occurring when unusual with the real-time data base communication, this equipment by data buffer storage function buffer memory image data to local, after communication recovers, real time data send intermittently send data cached.
The operational management module is used for the startup of control master routine and stops, control the execution of clock synchronous program start, opertaing device resets and restart and monitor each module ruuning situation of each master routine.
Configuration Manager by resolving configuration file, obtains configuration information.
The present invention has realized the OPC embedded remote data acquisition based on ARM, and particularly, the present invention has following beneficial effect:
(1) realized OPC embedded remote data acquisition based on ARM, realized that the OPC client is based on the application under the ARM framework.
(2) the present invention is different from X86-based and Windows system platform commonly used in the management information network at hardware structure and operating system, industrial control network and supervising the network have effectively been isolated, defence has realized the function of control network security virus-isolating from attack and the invasion of supervising the network virus.
(3) in the real-time data base communication process of data processing module of the present invention and administration and supervision authorities, detect the networking by communication platform, as when Network Abnormal occurring, this equipment can be on the machine the buffer memory data of successful communication not, and after this network recovery is normal, send the not data of successful communication, guarantee the integrality of data.
Description of drawings
Fig. 1 is the acquisition method synoptic diagram based on the OPC Embedded Remote Data Collecting System of ARM framework.
Fig. 2 is the structural representation based on the data processing module of the OPC Embedded Remote Data Collecting System of ARM framework.
Fig. 3 is the arm processor construction module figure based on the OPC Embedded Remote Data Collecting System of ARM framework.
Fig. 4 is the synoptic diagram based on the embodiment of the OPC Embedded Remote Data Collecting System of ARM framework.
Embodiment
Below in conjunction with instantiation and accompanying drawing, the present invention is described in detail, and the ARM microprocessor adopts AT91SAM9G45 in the present embodiment.
As shown in the figure, OPC Embedded Remote Data Collecting System based on the ARM framework, it comprises: the 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 sending to real-time data base by communication server, described data processing module comprises the ARM microprocessor, power supply/reset circuit, the UI circuit, DDR2RAM, NANDFLASH, the one TCP interface, the 2nd TCP interface, the RS232/485 interface, the 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 links to each other with the signal input part of ARM microprocessor, the signal output part of ARM microprocessor links to each other with the signal input part of UI circuit, and the ARM microprocessor also is connected with the 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 also is connected with opc server by the 2nd TCP interface.
Described ARM microprocessor comprises: Configuration Manager, the 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 the opc server end image data of OPC client mode from industrial control network, the signal output part of data acquisition module links to each other with the signal input part that gathers sending module, the signal output part that gathers sending module links to each other with the signal input part of real-time data base, gathering sending module also links to each other 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 the administration and supervision authorities.Key-course comprises a Yokogawa scattered control system (Yokogawa DCS), and Yokogawa opc server (Yokogawa.Exaopc OPC SERVER) is installed on its server; Administration and supervision authorities are comprised of the IP21 real-time data base of configuration tool, O﹠M platform, AspenTech company, and the specific implementation step that this example is implemented is as follows:
(1) after the device power, power supply/reset circuit provides equipment work required each road power supply, and the whole system that resets, institute's solidification software code among the operation NAND FLASH, operational system;
(2) after the normal operation of system, carry out parameter configuration by configuration tool, mainly comprise:
The information such as username and password of the title (PRGID) of the IP address of server (OPC SERVER IP), equipment, the ID of equipment numbering (CLASS ID), distributed establishment object model (DCOM), as shown in table 1;
Table 1
The maximum collection point that allows is set to 3000, and collection period is 15s;
It is analog quantity, switching value and amount of text that equipment allows the image data type configuration, and this example is only take an analog quantity and a switching value as example, and is as shown in table 2;
Table 2
| Call the roll | Data type | The 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 to configuration file by a TCP interface, be successfully completed configuration after, start the service data collecting device;
(4) data acquisition module detects opc server end state, if normally then begin to gather real time data and state in the opc server end, and it is assembled into protocol massages is ready for sending;
(5) protocol massages after data transmission blocks is assembled data acquisition module by a TCP interface uploads to the real-time data base of administration and supervision authorities;
(6) the O﹠M platform is by TCP interface monitoring equipment operation, and the O﹠M platform can issue orders such as stopping collection, collection point test, restarting equipment to collecting device, and can check the running log system;
(7) after opc server brings out existing fault, equipment can start after the fault recovery of opc server end automatically; When communication failure appearred in the real-time data base communication in equipment and the managerial grid, data cached module began data cached, and equipment will be successively with the data cached real-time data base that uploads to after communication recovered.
Claims (7)
1. OPC Embedded Remote Data Collecting System based on the ARM framework, it is characterized in that it comprises: the 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 sending to real-time data base by communication server, described data processing module comprises the ARM microprocessor, power supply/reset circuit, the UI circuit, DDR2RAM, NANDFLASH, the one TCP interface, the 2nd TCP interface, the RS232/485 interface, the 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 links to each other with the signal input part of ARM microprocessor, the signal output part of ARM microprocessor links to each other with the signal input part of UI circuit, and the ARM microprocessor also is connected with the 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 also is connected with opc server by the 2nd TCP interface.
2. OPC Embedded Remote Data Collecting System based on the ARM framework is characterized in that the collecting method of this system is realized by following steps:
(1) operational system, power supply/reset circuit provide system's modules work required power supply, and the whole system that resets, institute's solidification software code among the operation NAND FLASH;
(2) after the normal operation of system, carry out parameter configuration by configuration tool, mainly comprise:
The title (PRGID) of the IP address of server (OPC SERVER IP), equipment, the sign (CLASS ID) of server, the information such as username and password of distributed establishment object model (DCOM);
The label roll-call that gathers, data type, source label information;
The maximum configuration collection point that allows of equipment, equipment allows image data type, communication packet form and collection period;
(3) configuration tool is issued to OPC client data acquisition module to configuration file by a TCP interface, and operation OPC client 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) communication server sends to real-time data base with the data that obtain.
3. OPC Embedded Remote Data Collecting System and acquisition method based on the ARM framework according to claim 2, it is characterized in that the method that described OPC embedded remote data acquisition data module based on the ARM framework gathers the data on the opc server may further comprise the steps:
(1) OPC client data acquisition module detects opc server end state: the OPC client is according to configuration opc server information, and establishment is connected with opc server, and whether judges the state of opc server according to this successful connection; If normal, then begin interpolation group and label point according to the group information that disposes and label point information to opc server, after this according to the collection period of configuration, gather the interior real time data of opc server end and state, and it is assembled into protocol massages is ready for sending; If this connection failure then regularly creates this connection again, until till the success;
(2) communication state of detection data processing module and communication server, if communication is normal, the protocol massages after data transmission blocks is assembled data acquisition module by a TCP interface uploads to the communication platform on the communication server; If communication state is unusual, to data cached module, wait resends this equipment with the data buffer storage that gathers;
(3) after communication recovered, system was successively with the data cached communication server that uploads to.
4. OPC Embedded Remote Data Collecting System and acquisition method based on the ARM framework according to claim 2, it is characterized in that, described communication server sends to the method for real-time data base with the data that obtain, and adopts the method for multithreading to realize, specifically comprises the steps:
(1) communication platform on the communication server is by the data message of data transmission blocks in the TCP communication interface receive data processing module, the security of verification receiving data packets and integrality;
(2) according to the message format that has disposed carry out Data Analysis and with data deposit in pending data cached in;
(3) from data cached, send according to the order of sequence data, call different real time data bank interfaces data are sent to real-time data base.
5. described according to claim 4, communication server sends to the data that obtain the method for real-time data base, it is characterized in that: the described message format that has disposed comprises: heading, text, verification, wherein the data text comprises data and the state of collection point.
6. the OPC embedded remote data acquisition equipment based on the ARM framework according to claim 1, it is characterized in that: described ARM microprocessor comprises: Configuration Manager, the 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 the opc server end image data of OPC client mode from industrial control network, the signal output part of data acquisition module links to each other with the signal input part that gathers sending module, the signal output part that gathers sending module links to each other with the signal input part of real-time data base, gathering sending module also links to each other 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 acquisition equipment based on the ARM framework according to claim 1 is characterized in that: what described ARM microprocessor adopted is the AT91SAM9G45 chip.
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| CN110806996B (en) * | 2019-09-20 | 2022-04-12 | 光大环境科技（中国）有限公司 | System and method for collecting OPC data |
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