CN110488768A - A kind of virtual instrument equipment of cloud platform and DCS hardware isolated - Google Patents
A kind of virtual instrument equipment of cloud platform and DCS hardware isolated Download PDFInfo
- Publication number
- CN110488768A CN110488768A CN201810456412.4A CN201810456412A CN110488768A CN 110488768 A CN110488768 A CN 110488768A CN 201810456412 A CN201810456412 A CN 201810456412A CN 110488768 A CN110488768 A CN 110488768A
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- CN
- China
- Prior art keywords
- dcs
- host computer
- communication module
- cloud platform
- instrument equipment
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Classifications
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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
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM]
- G05B19/41845—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM] characterised by system universality, reconfigurability, modularity
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/33—Director till display
- G05B2219/33273—DCS distributed, decentralised controlsystem, multiprocessor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The invention discloses the virtual instrument equipment of a kind of cloud platform and DCS hardware isolated, host computer on one end and cloud platform communicates to connect, one end and DCS are communicated to connect, including host computer interface, the communication module connecting with host computer, microprocessor, digital analog converter, photoisolator, analog signal output, the communication module connecting with DCS, storage unit and power module；The virtual instrument equipment passes through the virtual data that host computer interface real-time reception cloud platform calculates, and it is transmitted to analog-digital converter and is translated into analog signal, after photoisolator Phototube Coupling, DCS is transmitted to by analog signal output, realizes the physical isolation mode of Phototube Coupling；The DCS actively obtains the data of virtual instrument equipment, prevents the intrusion of other irrelevant informations, and security risk is not present.
Description
Technical field
The invention belongs to chemical plant installations safety monitoring technology field, in particular to a kind of cloud platform and DCS hardware isolated
Virtual instrument equipment.
Background technique
DCS is the english abbreviation (Distributed Control System) of dcs, in process industry
It is middle to complete the functions such as important base control and Real Time Data Collecting, dynamic monitoring.DCS is as industrial automation of new generation
Process control equipment is widely used in the fields such as oil refining, petrochemical industry, chemical industry, metallurgy, electric power, light textile.DCS
In the control core of whole flow process industry, macrocyclic safe operation is needed.
Usual DCS only carries out conventional process control, dynamic monitoring etc., not can be carried out large-scale mathematical operation processing,
Otherwise system loading is increased, influences the stable operation of system.DCS is interfered by external system in order to prevent, and DCS communication network makes
With dedicated industry control network, it is attached by opc server and extraneous office network, realizes data exchange.
With the development that big data analysis, cloud platform are built, a series of intellectual analysis based on data mining is formd
System, such as the analysis of the unusual service condition based on data mining, virtual instrument technology, process diagnosis etc..These systems generally pass through
Opc server reads the operation data of DCS, and data processing is carried out in the cloud platform oneself built, obtains analysis result.Due to
These data be Office Network cloud platform calculate obtained by, due to DCS network security be arranged, these analysis virtual datas be difficult
DCS system is returned to by network again.These usual intelligence systems can establish oneself a set of monitoring system in office network, supply
Other people inquire.For needing the parameter of real-time monitoring, DCS operator is difficult to leave these virtual datas of real time inspection, lead
Cause the no longer effective property of these data.External system can be by the write-in functions of opc server, progress DCS internal data modification, and one
As in the case of, only APC(advanced control system) etc. the control system do not networked can carry out DCS reading and writing data.In order to prevent
Bogusware invades DCS control system, carries out the modification wantonly of data, other outer net systems do not allow generally to service using OPC
The write-in permission of device.
The virtual data calculated for the cloud platform based on big data analysis is inconvenient to access DCS control system, operator
Member is difficult to leave to pay close attention to these analysis data, these data is made to generate the situation of timeliness deficiency.This patent proposes one kind
Connect the virtual instrument equipment of the hardware isolated of DCS and cloud platform.
Summary of the invention
In view of the deficienciess of the prior art, the virtual instrument that the present invention provides a kind of cloud platform and DCS hardware isolated is set
It is standby, it is isolated by hardware interface, realizes the external data retransmission function of DCS control network, help operator's real-time reception number
It is believed that breath, the present invention actively obtains data mode using DCS, prevents Viral interference or external system failure to DCS security protection
Impact, realize that the complex calculation data of cloud platform are shown in the implementation of DCS operation picture.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is that: a kind of cloud platform and DCS hardware isolated
Host computer in virtual instrument equipment, one end and cloud platform communicates to connect, and one end and DCS are communicated to connect, including host computer interface,
Communication module, microprocessor, digital analog converter, photoisolator, analog signal output and the DCS connecting with host computer connect
Communication module, storage unit and the power module connect；The virtual instrument equipment passes through host computer interface real-time reception cloud platform
The virtual data of calculating, and be transmitted to analog-digital converter and be translated into analog signal, after photoisolator Phototube Coupling,
It is transmitted to DCS by analog signal output, the DCS actively obtains the data of virtual instrument equipment.
Further, the communication module being connect with host computer include the RS485 communication module being connect with host computer,
The INTERNET communication module being connect with host computer.
Further, the RS485 communication module connecting with host computer is Phototube Coupling mode, meets Modbus communication
Protocol requirement receives the transmitting data from host computer.
Further, the communication module connecting with DCS is RS485 communication module, and the DCS connects equipped with RS485
Mouthful, virtual instrument equipment is connected by the RS485 interface of RS485 communication module and DCS, is carried out data transmission.
Further, the RS485 communication module connecting with DCS is Phototube Coupling mode, meets Modbus communication
Protocol requirement receives the transmitting data from microprocessor.
Further, the host computer of the cloud platform is equipped with RS232 communication module and INTERNET communication module；The void
Quasi- instrumentation is attached by the RS232 communication module that RS232 turns RS485 converter and host computer, or is passed through
The communication connection of the host computer of INTERNET communication module and cloud platform.
Further, the virtual operation data of the microprocessor real-time reception host computer transmitting, by virtual operation data
It is output to digital analog converter；The digital analog converter receives the digital signal that microprocessor is sent, and is converted into simulation
Signal is exported；The photoisolator receives the model signals that digital analog converter is sent, after carrying out Phototube Coupling, output
An equal amount of analog signal, is transmitted to analog signal output.
Further, the DCS is equipped with analog data acquisition interface, and the analog signal output is connected by guard grating
To the analog data acquisition interface of DCS.
Compared with prior art, the invention has the advantages that:
(1) it realizes that the hardware isolated of the outer nets equipment such as cloud platform and DCS connect, realizes the physical isolation mode of Phototube Coupling, and
Network security risk is reduced by analog quantity transmission, does not need stringent network security setting；
(2) data mode is actively received using DCS, prevents the intrusion of other irrelevant informations, security risk is not present；
(3) this patent data have versatility, may be from the heterogeneous networks such as outer net, Office Network, it is only necessary to transmit data symbols collaboration
System protocol requirement.
Detailed description of the invention
Fig. 1 is virtual instrument device structure and connection relationship diagram of the invention.
Specific embodiment
With reference to the accompanying drawing and specific embodiment the present invention is further illustrated.
As shown in Figure 1, including cloud platform, virtual instrument equipment, the detailed connection type of DCS and virtual instrument equipment
Internal structure.Virtual instrument equipment of the invention can turn the RS232 interface of RS485 converter and host computer by RS232
It is attached；It can be attached by the cable interface of cable and host computer；The analog signal output of virtual instrument equipment
The analog data acquisition interface fastener of DCS is connected to by guard grating；RS485 communication module and the end DCS can also be passed through
RS485 interface is attached, and carries out multi-parameter transmission.
Main function is realized, needs to install upper computer software on the server, realize the information configuration of relevant parameter with
Real-time Data Transmission etc..
Upper computer software: realization upper computer software is write by programming languages such as C#, VC++.Database on reading service device
In other system operations virtual data；The end COM or the INTENET interface end for connecting server RS232 interface, identify Virtual instrument
The connection status of table equipment；Pass through RS232 or cable respectively by Modbus or TCP/IP communication agreement to transmit virtual data
Give virtual instrument equipment.
The internal structure design of virtual instrument equipment of the invention is as follows:
1) the RS485 communication module of host computer connection: it is designed as Phototube Coupling mode, prevents signal interference bring system from pacifying
Entirely；The RS485 interface meets Modbus communication protocol requirements；Receive the transmitting data from host computer.
2) the INTERNET communication module being connect with host computer, i.e. cable interface: what another kind was connect with server data
Mode, the interface support TCP/IP communication agreement；Receive the transmitting data from host computer.
3) microprocessor: ARM series microprocessor is used；Using embedded programming mode, realizes the range of each parameter, retouches
It states equal association attributes setting and saves function, realize that Modbus communication protocol and the TCP/IP communication protocol software are realized, in identification
The data of position machine communication, and carry out data processing, carry out hundred-mark system conversion according to parameter range, be output to digital analog converter or with
The RS485 communication module of DCS connection.
4) storage unit: range bound, description of each analog signal (AO1-AOn) of virtual instrument equipment etc. are stored and is matched
Confidence breath.
5) it digital analog converter: is realized by hardware design and the digital signal from microprocessor is converted into simulation value.
6) it photoisolator: realizes the analog signal Phototube Coupling from digital analog converter, prevents signal interference to DCS mould
The impact of quasi- fastener.
7) analog signal output: converting analog signals into the 4-20mA industry signal of specification by hardware design, and
And meet demanded power output.
8) the RS485 communication module connecting with DCS: i.e. RS485 interface, the Interface design are Phototube Coupling mode, are prevented
Signal interference bring DCS system safety；The interface meets Modbus communication protocol requirements；Receive the transmitting from microprocessor
Data.
9) alternating current of 220V power module: is converted into 24V direct current and 5V direct current；5V direct current is logical for RS485
Believe that module, microprocessor, digital analog converter, photoisolator, cable interface etc. provide power supply；24V direct current is analogue data
Interface provides power supply.
The simulation number of guard grating isolation method and DCS can be passed through with the connection of DCS control system: analog signal output
It is attached according to acquisition interface, and carries out relevant parameter configuration, including position title, range bound etc. in DCS engineer station
Information；It is attached by the RS485 communication module of virtual instrument equipment and the RS485 communication module of DCS, progress baud rate,
The setting of the parameters such as range, the title of each parameter realizes the data receiver of multi-parameter using Modbus communication protocol.
Certainly, the above description is not a limitation of the present invention, and the present invention is also not limited to the example above, the art
Those of ordinary skill, within the essential scope of the present invention, the variations, modifications, additions or substitutions made all should belong to the present invention
Protection scope.
Claims (8)
1. the host computer in the virtual instrument equipment of a kind of cloud platform and DCS hardware isolated, one end and cloud platform communicates to connect, and one
End is communicated to connect with DCS, it is characterised in that: including host computer interface, the communication module connecting with host computer, microprocessor, number
Mode converter, photoisolator, analog signal output, the communication module being connect with DCS, storage unit and power module；Institute
It states virtual instrument equipment and passes through the virtual data that host computer interface real-time reception cloud platform calculates, and being transmitted to analog-digital converter will
It is converted into analog signal, after photoisolator Phototube Coupling, is transmitted to DCS, the DCS by analog signal output
Actively obtain the data of virtual instrument equipment.
2. the virtual instrument equipment of cloud platform according to claim 1 and DCS hardware isolated, it is characterised in that: described
The communication module connecting with host computer includes the RS485 communication module connecting with host computer, the INTERNET connecting with host computer
Communication module.
3. the virtual instrument equipment of cloud platform according to claim 1 or 2 and DCS hardware isolated, it is characterised in that: described
The communication module being connect with DCS be RS485 communication module, the DCS is equipped with RS485 interface, and virtual instrument equipment passes through
The connection of the RS485 interface of RS485 communication module and DCS, carries out data transmission.
4. the virtual instrument equipment of cloud platform according to claim 2 and DCS hardware isolated, it is characterised in that:
The host computer of the cloud platform is equipped with RS232 communication module and INTERNET communication module；The virtual instrument equipment is logical
Cross that RS232 turns RS485 converter and the RS232 communication module of host computer is attached, or by INTERNET communication module with
The host computer of cloud platform communicates to connect.
5. the virtual instrument equipment of cloud platform according to claim 1 and DCS hardware isolated, it is characterised in that: described micro-
Virtual operation data are output to digital analog converter by the virtual operation data of processor real-time reception host computer transmitting；The number
Mode converter receives the digital signal that microprocessor is sent, and is converted into analog signal and is exported；The photoelectricity every
The model signals that digital analog converter is sent are received from device, after carrying out Phototube Coupling, export an equal amount of analog signal, are transmitted
To analog signal output.
6. the virtual instrument equipment of cloud platform according to claim 5 and DCS hardware isolated, it is characterised in that: the DCS
Equipped with analog data acquisition interface, the analog signal output is connected to the analog data acquisition interface of DCS by guard grating.
7. the virtual instrument equipment of cloud platform according to claim 2 and DCS hardware isolated, it is characterised in that:
The RS485 communication module connecting with host computer is Phototube Coupling mode, meets Modbus communication protocol requirements, is received
Transmitting data from host computer.
8. the virtual instrument equipment of cloud platform according to claim 3 and DCS hardware isolated, it is characterised in that: described
The RS485 communication module connecting with DCS is Phototube Coupling mode, meets Modbus communication protocol requirements, receives and comes from micro process
The transmitting data of device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810456412.4A CN110488768A (en) | 2018-05-14 | 2018-05-14 | A kind of virtual instrument equipment of cloud platform and DCS hardware isolated |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810456412.4A CN110488768A (en) | 2018-05-14 | 2018-05-14 | A kind of virtual instrument equipment of cloud platform and DCS hardware isolated |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110488768A true CN110488768A (en) | 2019-11-22 |
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| CN201810456412.4A Pending CN110488768A (en) | 2018-05-14 | 2018-05-14 | A kind of virtual instrument equipment of cloud platform and DCS hardware isolated |
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Citations (6)
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| CN203275983U (en) * | 2013-05-15 | 2013-11-06 | 武汉钢铁(集团)公司 | Remote monitoring system of ultrasonic fatigue test |
| WO2016137397A2 (en) * | 2015-02-24 | 2016-09-01 | Silicon Cloud International Pte. Ltd. | Multi-tenant cloud based systems and methods for secure semiconductor design-to-release manufacturing workflow and digital rights management |
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| CN106761928A (en) * | 2016-11-25 | 2017-05-31 | 中原工学院 | The collecting method and device of a kind of coal mine safety monitoring system |
| CN107276987A (en) * | 2017-05-17 | 2017-10-20 | 厦门奥普拓自控科技有限公司 | A kind of the special line physical isolation industrial data means of communication and system |
| CN107517142A (en) * | 2017-10-10 | 2017-12-26 | 朱汉源 | A kind of system and method that remote maintenance is realized by Quick Response Code |
-
2018
- 2018-05-14 CN CN201810456412.4A patent/CN110488768A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203275983U (en) * | 2013-05-15 | 2013-11-06 | 武汉钢铁(集团)公司 | Remote monitoring system of ultrasonic fatigue test |
| WO2016137397A2 (en) * | 2015-02-24 | 2016-09-01 | Silicon Cloud International Pte. Ltd. | Multi-tenant cloud based systems and methods for secure semiconductor design-to-release manufacturing workflow and digital rights management |
| CN106761928A (en) * | 2016-11-25 | 2017-05-31 | 中原工学院 | The collecting method and device of a kind of coal mine safety monitoring system |
| CN106685990A (en) * | 2017-02-09 | 2017-05-17 | 北京东土科技股份有限公司 | Safety detecting method and safety detecting device based on industrial Internet operation system |
| CN107276987A (en) * | 2017-05-17 | 2017-10-20 | 厦门奥普拓自控科技有限公司 | A kind of the special line physical isolation industrial data means of communication and system |
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Application publication date: 20191122 |