CN103728957B - HART (highway addressable remote transducer) field equipment management method and system based on real-time database - Google Patents
HART (highway addressable remote transducer) field equipment management method and system based on real-time database Download PDFInfo
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- CN103728957B CN103728957B CN201410017472.8A CN201410017472A CN103728957B CN 103728957 B CN103728957 B CN 103728957B CN 201410017472 A CN201410017472 A CN 201410017472A CN 103728957 B CN103728957 B CN 103728957B
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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
- 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
An industrial operation station sends valid data corresponding to HART commands to a control station in a message mode in the industrial Ethernet protocol; the control station transmits the unpacked valid data in a message mode in the CAN (controller area network) protocol; an HART module unpacks the received CAN protocol messages and transmits the valid data in an HART command mode; HART equipment feeds response information back to the HART module after receiving the HART commands, and the HART module unpacks the response information and packs and transmits the response information in the message mode of the CAN protocol to the control station; the control station unpacks the CAN protocol messages and packs and sends the response information to the industrial operation station in the message mode of the industrial Ethernet protocol. A HART field equipment management method based on the real-time database helps send all the HART field equipment data to the operation station in a master-control room, enables a user to conveniently and remotely check, modify and configure configuration information of the field equipment just in the control room, improves the equipment maintaining efficiency and reduces the production cost.
Description
Technical field
The present invention relates to hart communication technique field, especially relate to a kind of hart field apparatus based on real-time data base
Management method and system.
Background technology
Controller local area network can (controller area network), belongs to the category of fieldbus, is that one kind has
Effect supports the serial communication network of dcs, by company of German Bosch in the eighties in 20th century exclusively for automobile industry
A kind of serial communication bus of exploitation.Increasingly it is subject to people's due to the design of its high-performance, high reliability and uniqueness
Pay attention to, be widely used in numerous areas.And it is capable of detecting when any mistake producing.When signal transmission distance reaches 10km
When, can stills provide the up to message transmission rate of 50kbit/s.Because can bus has very high real-time performance and application
Scope, the express network reaching as high as 1mbps from bit rate can arbitrarily be arranged in pairs or groups to inexpensive multi 50kbps network.
Therefore, can is widely applied in the fields such as car industry, aircraft industry, Industry Control, security protection.
High-speed remote addressable translation agreement (highway addressable remote transducer, referred to as
Hart), it is a kind of for the fieldbus communication protocol between field intelligent instrument and control room equipment.Hart agreement is 4～
20ma standard analog signal is to the agreement of digital signal transition.It passes through to be superimposed on traditional 4～20ma standard analog signal
One digital signal so that original analogue signal still can use, can transmit other letters by digital signal simultaneously
Breath.This agreement make existing simulation instrument need not want improved in the case of digitized can be done step-by-step, thus substantially reducing
Cost, improves competitiveness.At present, hart product under the contract has been widely used in automation control area.So, in a timing
In phase, hart agreement still has very strong vitality.
Hart site equipment management is to be sent, accepted hart by rs-232 by the pc control station installed at the scene at present
Order, is communicated with hart field apparatus.Hart site equipment management runs the pc machine control station it is necessary to have with serial ports, passes through
Serial Port Line is connected with hart field apparatus with hart modem, build-out resistor, thus realize control station entering to hart field apparatus
Line pipe is managed.So, current hart field apparatus must be by, on the pc machine control station at scene, operator can only be existing simultaneously
Field is managed to hart field apparatus and safeguards.Simultaneously in the pc machine control station at most of scenes, the simulation letter of 4～20ma
Number only passing through single cable is connected with conventional i/o module, and any and hart field apparatus communication is all by handss
Hold interim access of terminal to complete.And the staff of master control room cannot understand hart field apparatus practical situation it is impossible to
It is carried out with equipment control and the operations such as parameter configuration.The mode of traditional on-the-spot make an inspection tour is time-consuming, laborious, to hart field apparatus
Running status can not accomplish to have at fingertips, increased the probability of fault in production.
Content of the invention
The hart site equipment management method based on real-time data base for the present invention, by using real-time data base, is deposited effectively
Data, with the conversion being connected between different agreement, enhances hart ability by carrying out conversion to three kinds of different agreements, can be by
The digital signal of hart field apparatus and its conventional process signal are integrated in system platform, by whole hart field apparatus numbers
According to the active station sending into master control room, user is allowed just easily can remotely to check, change, configuring the configuration of field apparatus in control room
Information, all of operation all can record in data base, accomplishes to have good grounds.So maintenance rate improves, and production cost reduces, its
Concrete technical scheme is as follows:
A kind of hart site equipment management method based on real-time data base, comprises the steps:
It is an object of the invention to provide a kind of hart site equipment management method based on real-time data base, including as follows
Step:
Corresponding for hart order valid data are sent by s1: industrial operation station with the message form in industrial ethernet protocol
To control station；
S2: control station unpacks to the industrial ethernet protocol message being received, and valid data are stored in control station
After data base, hart module is transmitted with the message form in can agreement；
S3:hart module unpacks to the can protocol massages being received, and valid data are stored in hart module data
Constitute hart command forms behind storehouse and be sent to corresponding hart equipment；
Response message is returned to hart module after receiving hart order by s4:hart equipment, and hart module unpacks described
Response message obtains significant response data, and significant response data is transmitted to control with the message form in can agreement
Stand；
The can protocol massages that s5: control station sends to the hart module being received unpack, and significant response data is stored up
After being stored in control station data base, industrial operation station is transmitted with the message form in industrial ethernet protocol.
Further, described control station data base is provided with two relief areas and is respectively used to temporary described EPA association
View message and can protocol massages.
Further, the frame format of described industrial ethernet protocol message includes: destination address, source address, type, number
According to, crc, wherein data is included using udp data message form: ip head, udp head, application data.
Further, the form of described application data adopts self-defining data frame format, comprising: check information one, user
Data and check information two.
Further, described hart module data base be provided with two relief areas be respectively used to temporary can protocol massages and
Hart order.
Another object of the present invention is to providing a kind of hart Field Device Management System based on real-time data base, including
Industrial operation station, control station, hart module and hart equipment；
Corresponding for hart order valid data are sent out by described industrial operation station with the message form in industrial ethernet protocol
Deliver to control station；
Described control station unpacks to the industrial ethernet protocol message being received, and valid data are stored in control station
After data base, hart module is transmitted with the message form in can agreement；
Described hart module unpacks to the can protocol massages being received, and valid data are stored in hart module number
It is sent to corresponding hart equipment according to constituting hart command forms behind storehouse；
Response message is returned to hart module after receiving hart order by described hart equipment, and hart module unpacks described
Response message obtains significant response data, and significant response data is transmitted to control with the message form in can agreement
Stand；
The can protocol massages that described control station sends to the hart module being received unpack, by significant response data
After being stored in control station data base, industrial operation station is transmitted with the message form in industrial ethernet protocol.
Further, described control station is provided with DBM, and described DBM is provided with two bufferings and distinguishes
It is not used for keeping in described industrial ethernet protocol message and can protocol massages.
Further, described hart module is provided with DBM, and described DBM is provided with two relief areas
It is respectively used to temporary can protocol massages and hart order.
Beneficial effects of the present invention are as follows:
In prior art, hart module uses the master station protocol of hart, and the slave station protocol of can, so cannot
Directly data is converted in different agreements.Pass through data base in this inventive technique scheme, two communications protocol are isolated, with
When both kept in using different relief areas, effectively solve two kinds of protocol speed mismatch problems, simultaneously because mutually isolated,
It is independent of each other, it also avoid affecting another agreement when a protocol communication goes wrong.Further, delay by using different
Rush area, effectively solve speed mismatch problem.Simultaneously it is stipulated that in a local unified operation data base, so same
Can only have an object handles data base in time, thus avoid multiple objects simultaneously processing data and produce operation punching
Prominent, improve the efficiency that program is run.
Brief description
Fig. 1 is the method flow diagram of the embodiment of the present invention.
Fig. 2 is embodiment of the present invention Ethernet protocol, can agreement, hart protocol conversion figure.
Fig. 3 is embodiment of the present invention Ethernet protocol, can agreement, hart protocol frame data stream figure.
Fig. 4 is the structural representation based on the hart Field Device Management System of real-time data base for the embodiment of the present invention.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, below in conjunction with drawings and Examples, right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only in order to explain the present invention, and
It is not used in the restriction present invention.
As shown in the embodiment of fig. 1, a kind of hart site equipment management method based on real-time data base, walks including following
Rapid:
Corresponding for hart order valid data are sent out by s1: industrial operation station 1 with the message form in industrial ethernet protocol
Deliver to control station 2.
After s2: control station 2 receives the industrial ethernet protocol message that industrial operation station 1 sends, unpacked, will be effectively
Data is placed on the relevant position of corresponding control station data base, and control station 2 takes out corresponding valid data with the message in can agreement
Form, transmits hart module 3.
Wherein, the transformation process between EPA (snet) agreement and can agreement is specific as follows:
As shown in figure 3, the frame format of Ethernet protocol message includes: destination address, source address, type, data, crc this
Five parts, wherein data we adopt udp data message form: ip head, udp head, application data.Application data form, I
Made improve, self-defining data frame format, increased check information 1 and check information 2 before and after user data, so reduction
The bit error rate, thus define snet protocol theory.
Can protocol extension frame format includes: command word, destination address, source address, data pointer, user data this five
Point.
In control station, we establish an active station data base, and described active station data base is provided with two bufferings
Area is respectively used to temporary described industrial ethernet protocol message and is temporarily stored into and can protocol massages.EPA (snet) is assisted
View is isolated with can agreement, and both are kept in using different relief areas simultaneously, and effectively two kinds of protocol speed of solution mismatch and ask
Topic；Because mutually isolated, it is independent of each other, when it also avoid a protocol communication and ging wrong, cause the problem of another agreement.And
Using different relief areas, effectively solve speed mismatch problem.Simultaneously it is stipulated that in a local unified operation data
Storehouse, so can only have an object handles data base within the same time, thus avoid multiple objects simultaneously processing data and
The operation conflict producing, improves the efficiency that program is run.After industrial ethernet protocol message unpacks, user data is placed on correspondence
The relevant position of active station data base, according to the specification of can master station protocol s3, in data base 1, corresponding user data is assisted with can
Message form in view is packaged packing.
S3:hart module 3 receives the can protocol massages that control station sends, and is unpacked, and valid data are placed on hart mould
The relevant position of part data base, hart module 3 takes out corresponding valid data from correspondence database, and according in hart agreement
Frame format requires to constitute a complete hart order and be sent to corresponding hart equipment 4.
Transformation process between can agreement and hart agreement is specific as follows:
Hart protocol frame format includes: leading character, delimiter, address, hart command number, byte counting, valid data, school
Test this seven partial information.Wherein hart command number, byte count, valid data this three partly belong to hart application layer data；Fixed
Boundary's symbol, address, verify this and three partly belong to hart data in link layer；Leading character information belongs to hart physical layer data.
The master station protocol of hart, and the slave station protocol of can is used in hart module.Because hart agreement is low
The communication protocol of speed, and can agreement is high-speed communication protocol, so directly data cannot be converted in different agreements.Cause
We establish an art module data base for this, and can agreement is isolated with hart communications protocol, and both are using different simultaneously
Relief area is kept in, and effectively solves two kinds of protocol speed mismatch problems；Because mutually isolated, it is independent of each other, it also avoid one
When individual protocol communication goes wrong, cause the problem of another agreement.
Using different relief areas, effectively solve speed mismatch problem.Simultaneously it is stipulated that grasping in a local unification
Make data base, so can only have an object handles data base within the same time, thus avoid multiple objects process simultaneously
Data and the operation conflict that produces, improve the efficiency that program is run.Using hart command buffer, effectively raise hart life
The efficiency of order execution.Solve numerous hart site equipment management softwares in communication process, force that user is inoperable asks
Topic.Normal hart data sampling can not affected when hart communicates.
After can protocol massages unpack, user data is placed on the relevant position of corresponding hart module data base, according to hart
In agreement, frame format requires, and in hart module data base, corresponding user data is packaged with hart frame format, constitutes one
Complete hart command information, completes the conversion between can agreement and hart agreement.
Response message is returned to hart module 3 after receiving hart order by s4:hart equipment 4, and hart module 3 unpacks institute
State response message and obtain significant response data, and significant response data is transmitted to control with the message form in can agreement
Station 2 processed.
After s5: control station 2 receives the can protocol massages that hart module 3 sends, by unpacking, valid data are placed on
The relevant position of control station data base, control station takes out corresponding valid data with the message form in industrial ethernet protocol,
Transmit industrial operation station 1.
In Fig. 2 embodiment, we model for hart field apparatus, and hart field apparatus is abstracted into a data mould
Type, is easy to be managed collectively.This process does not rely on hart agreement.
In active station, industrial operation station interface is obeyed Ethernet and is received agreement x1, by corresponding for hart order valid data
Control station is sent to the message form in industrial ethernet protocol.Meanwhile, the response message that Receiving ＆ control ground station feeds back, this
Information is that in Ethernet protocol, message form returns.This message is not a complete hart command message, is standard
Ethernet protocol Frame, transmission be hart field apparatus model valid data.Relatively for hart protocol command, data
Amount is few a lot of and unrelated with hart field apparatus.
In control station, according to Ethernet distribution protocol x2, control station receives the industrial ethernet protocol that active station sends
After message, by unpacking, valid data are placed on the relevant position of corresponding real-time data base.Simultaneously according to can master station protocol x3
Specification, control station take out corresponding valid data with the message form in can agreement, transmit hart module.Meanwhile,
According to can master station protocol x3, after control station receives the can protocol massages that hart module sends, by unpacking, by valid data
It is placed on the relevant position of corresponding real-time data base.Concrete norm according to Ethernet distribution protocol x2 requires, and it is right that control station takes out
The valid data answered, with the message form in industrial ethernet protocol, transmit in active station based on real-time data base
Hart site equipment management software.
In hart module, according to can slave station protocol x4 normative content, hart module receives the can agreement that control station sends
Message, by unpacking, valid data are placed on the relevant position of correspondence database.According to the content of hart master station protocol x5,
Hart module takes out corresponding valid data from correspondence database, and requires composition one complete according to frame format in hart agreement
Whole hart order is simultaneously sent to corresponding hart field apparatus.Can protocol massages are self-defining can Frames, for height
The valid data transmission of the hart field apparatus model of speed.And it is unrelated with hart field apparatus.Meanwhile, hart module according to
Hart master station protocol x5 specification, receives the response message from hart equipment.Response message is unpacked by hart module, by significant figure
According to depositing with the message form in can agreement, transmit to control station.
In hart equipment, according to the content of hart slave station protocol x6, hart equipment receives the hart life from hart module
Corresponding slave station response message is returned to hart module after being successfully received by order.
Corresponding to a kind of hart site equipment management method based on real-time data base of the present invention, one kind is also provided to be based on
The hart Field Device Management System of real-time data base, Fig. 4 is a kind of structure of the software update system of mobile terminal of the present invention
Schematic diagram, as shown in figure 4, described system, including industrial operation station, control station, hart module and hart equipment；
Corresponding for hart order valid data are sent out by described industrial operation station with the message form in industrial ethernet protocol
Deliver to control station；
Described control station unpacks to the industrial ethernet protocol message being received, and valid data are stored in control station
After data base, hart module is transmitted with the message form in can agreement；
Described hart module unpacks to the can protocol massages being received, and valid data are stored in hart module number
It is sent to corresponding hart equipment according to constituting hart command forms behind storehouse；
Response message is returned to hart module after receiving hart order by described hart equipment, and hart module unpacks described
Response message obtains significant response data, and significant response data is transmitted to control with the message form in can agreement
Stand；
The can protocol massages that described control station sends to the hart module being received unpack, by significant response data
After being stored in control station data base, industrial operation station is transmitted with the message form in industrial ethernet protocol.
Wherein, described control station is provided with DBM, and described DBM is provided with two relief areas and uses respectively
It is temporarily stored into and can protocol massages in temporary described industrial ethernet protocol message.Described hart module is provided with DBM,
Described DBM is provided with two relief areas and is respectively used to temporary can protocol massages and hart order.
Claims (8)
1. a kind of hart site equipment management method based on real-time data base is it is characterised in that comprise the steps:
Corresponding for hart order valid data are sent to control with the message form in industrial ethernet protocol by s1: industrial operation station
System station；
S2: control station unpacks to the industrial ethernet protocol message being received, and valid data are stored in control station data
Behind storehouse, hart module is transmitted with the message form in can agreement；
S3:hart module unpacks to the can protocol massages being received, and valid data are stored in after hart module data base
Constitute hart command forms and be sent to corresponding hart equipment；
Response message is returned to hart module after receiving hart order by s4:hart equipment, and hart module unpacks described response
Information acquisition significant response data, and significant response data is transmitted to control station with the message form in can agreement；
The can protocol massages that s5: control station sends to the hart module being received unpack, by significant response data storage in
After control station data base, industrial operation station is transmitted with the message form in industrial ethernet protocol.
2. according to claim 1 the hart site equipment management method based on real-time data base it is characterised in that described control
System station data base is provided with two relief areas and is respectively used to keep in described industrial ethernet protocol message and can protocol massages.
3. according to claim 2 the hart site equipment management method based on real-time data base it is characterised in that described work
The frame format of industrial Ethernet protocol massages includes: destination address, source address, type, data, crc, wherein data adopt udp number
Include according to message format: ip head, udp head, application data.
4. according to claim 3 the hart site equipment management method based on real-time data base it is characterised in that described should
Adopt self-defining data frame format with the form of data, comprising: check information one, user data and check information two.
5. according to claim 4 the hart site equipment management method based on real-time data base it is characterised in that described
Hart module data base is provided with two relief areas and is respectively used to temporary can protocol massages and hart order.
6. a kind of hart Field Device Management System based on real-time data base is it is characterised in that include industrial operation station, control
Stand, hart module and hart equipment；
Corresponding for hart order valid data are sent to by described industrial operation station with the message form in industrial ethernet protocol
Control station；
Described control station unpacks to the industrial ethernet protocol message being received, and valid data are stored in control station data
Behind storehouse, hart module is transmitted with the message form in can agreement；
Described hart module unpacks to the can protocol massages being received, and valid data are stored in hart module data base
Constitute hart command forms afterwards and be sent to corresponding hart equipment；
Response message is returned to hart module after receiving hart order by described hart equipment, and hart module unpacks described response
Information acquisition significant response data, and significant response data is transmitted to control station with the message form in can agreement；
The can protocol massages that described control station sends to the hart module being received unpack, by significant response data storage
After control station data base, industrial operation station is transmitted with the message form in industrial ethernet protocol.
7. according to claim 6 the hart Field Device Management System based on real-time data base it is characterised in that described control
Station processed is provided with DBM, and described DBM is provided with two relief areas and is respectively used to keep in described EPA
Protocol massages and can protocol massages.
8. according to claim 7 the hart Field Device Management System based on real-time data base it is characterised in that described
Hart module is provided with DBM, and described DBM is provided with two relief areas and is respectively used to temporary can agreement report
Literary composition and hart order.
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| CN201410017472.8A CN103728957B (en) | 2014-01-15 | 2014-01-15 | HART (highway addressable remote transducer) field equipment management method and system based on real-time database |
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| CN201410017472.8A CN103728957B (en) | 2014-01-15 | 2014-01-15 | HART (highway addressable remote transducer) field equipment management method and system based on real-time database |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104407591A (en) * | 2014-11-27 | 2015-03-11 | 杭州优稳自动化系统有限公司 | Communication management method for master station and slave station of Modbus device based on real-time database, and communication management system for master station and slave station of Modbus device based on real-time database |
| CN106571991B (en) * | 2016-11-09 | 2020-03-17 | 湖南戈人自动化科技有限公司 | Data transmission method and device |
| CN112757923B (en) * | 2019-11-05 | 2023-03-17 | 中车株洲电力机车研究所有限公司 | Wireless control method, device and system for train charging |
| CN112583839B (en) * | 2020-12-22 | 2022-11-01 | 北京神经元网络技术有限公司 | Protocol conversion device, method, equipment and medium for Autbus bus and Hart bus |
| CN113225382A (en) * | 2021-04-07 | 2021-08-06 | 中国二十冶集团有限公司 | Method and system for diagnosing state of instrument equipment through digital quantity remote communication |
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