CN101414177A - System for converting serial port to Ethernet based on field bus data acquisition - Google Patents
System for converting serial port to Ethernet based on field bus data acquisition Download PDFInfo
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- CN101414177A CN101414177A CNA200810201366XA CN200810201366A CN101414177A CN 101414177 A CN101414177 A CN 101414177A CN A200810201366X A CNA200810201366X A CN A200810201366XA CN 200810201366 A CN200810201366 A CN 200810201366A CN 101414177 A CN101414177 A CN 101414177A
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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]
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Abstract
A serial-to-Ethernet system based on field-bus data acquisition relates to an electric power system and an industrial control system. The serial-to-Ethernet system comprises an upper computer system and a plurality of intelligent acquisition modules. The upper computer system comprises a universal PC; a field-bus communication interface adapter which is connected with the universal PC and connected with a plurality of intelligent acquisition modules; and a control center computer which is connected with the universal PC by the Ethernet. The serial-to-Ethernet system effectively achieves the functions of field-bus data acquisition, data transmission, data information exchange, control command transmission, remote wireless real-time monitoring and the like. The industrial Ethernet technology is directly applied to communication among industrial field apparatuses, which causes more networking, integration, distribution, node intelligentization, better application and better industrial field control of the apparatuses.
Description
Technical field
The present invention relates to electric system and industrial control system, the serial ports that particularly relates to based on field bus data acquisition changes Ethernet system.
Background technology
Fieldbus is the product that modern automatic control technology and information network technique combine with the Industrial Ethernet technology, is the significant technology of automation equipment of future generation, is the strong instrument of transforming traditional industry, also is the important directions that using IT to propel industrialization.
Fieldbus mainly is that real-time is good, reliability is high, mainly is to use one-level at the scene, and message exchange, control between the on-the-spot one-level apparatus.Strong point at bus, Chinese patent CN1828571 discloses a kind of universal serial port bus data transportation processing method, comprise: scanning endpoint descriptor, transmission descriptor chain, find the transmission of data transmission descriptor is arranged, data message in the described transmission descriptor is filled in two buffer descriptors at least, simultaneously with the Status Flag position 1 of buffer descriptor; Console controller scanning mode zone bit is 1 buffer descriptor, according to data information transfer data in the described buffer descriptor; The buffer descriptor return state begins to retransmit from this buffer descriptor for there not being when response.The buffer descriptor return state is proceeded the transmission of next data when receiving.The present invention makes console controller when carrying out data transmission based at least two buffer descriptors, and confusion does not take place the data order of being transmitted, and the assurance data are transmitted fast and efficiently, and the transmission speed of data is enhanced about more than once.
Ethernet is a kind of medium, and its speed is fast, but transfer efficiency is low, unreliable and network congestion.Therefore mainly be the usefulness that is applied in workshop level and the monitoring of factory level upper layer network.Characteristics at Ethernet, Chinese patent CN1578237 discloses a kind of method of Ethernet long distance high speed transmission data, it may further comprise the steps: a. sends to port bundling module at transmitting terminal with Ethernet data, by port bundling module Ethernet data is distributed to the xDSL transceiver; The b.xDSL transceiver is modulated above-mentioned data, changes the line signal of the transmission on the twisted-pair feeder into, sends on the twisted-pair feeder; C. the xDSL transceiver of receiving end receives above-mentioned signal, demodulates corresponding Ethernet data, and sends into port bundling module; D. port bundling module merges the Ethernet data that receives, and recovers raw data.The present invention contains the twisted-pair feeder transmission technology of Ethernet port bundling module and multichannel xDSL transceiver by employing, has utilized cheap twisted-pair feeder resource, has avoided laying the work of optical fiber, has reduced engineering cost.
But said method all is to have used bus and Ethernet transmission data isolatedly, effectively both is not carried out combination, makes their coexistences and absorption advantage separately, and oneself uses each other.
Summary of the invention
Technical matters to be solved by this invention is field bus technique and ethernet technology are merged, and fieldbus is outside the direction of opening more, distributing develops, and ethernet technology is also optimized its stability and reliability.
In order to address the above problem technical scheme of the present invention is such:
Serial ports based on field bus data acquisition changes Ethernet system, comprise host computer system and a plurality of intelligent acquisition module, it is characterized in that, described host computer system comprises general purpose personal computer, with the field bus communication interface adapter that is connected with general purpose personal computer, the field bus communication interface adapter connects a plurality of intelligent acquisition modules;
Described serial ports based on field bus data acquisition changes Ethernet system, also comprises control center's computing machine, and described personal computer connects control center's computing machine by Ethernet.
In the above-mentioned design, serial ports commentaries on classics Ethernet system based on field bus data acquisition has adopted the system architecture that mainly is made of host computer system and all kinds of intelligent acquisition module, under the condition that guarantees system's reliably working and reduce cost, consider the factor of aspects such as versatility, practicality and extensibility.
Concrete, the host computer system is made up of general purpose personal computer and the field bus communication interface adapter that is switched to general purpose personal computer inside.Described host computer system is transferred to control center's computing machine by many serial servers equipment and D-Link router by Ethernet.
Described host computer system is responsible for the overall scheduling of system, sends order to network node, the receiving node data, and nodal information analyzed, stores, shows or print.
Described intelligent acquisition module is responsible for the collection of monitor data and to the control of watch-dog, is communicated with analog quantity or digital quantity.
Among the present invention, Ethernet is the system bus that is connected to various intelligent objects, is again the fieldbus of field equipment connecting, has double action.
Among the present invention, described general purpose personal computer adopts full-duplex mode to communicate by letter with a plurality of intelligent acquisition intermodules in addition.Employing full-duplex mode communication substitutes original bus-type CSMA/CD technology with switching technology, has avoided having reduced the waste of channel width because a plurality of websites are shared and competitive channel causes the collision that takes place.The employing full-duplex mode is communicated by letter, and effectively raises the utilization factor of channel.
The present invention can solve the system integration problem of multiple industrial bus well, has also greatly enriched the system of industrial field bus simultaneously, impels it to higher development.
In sum, the present invention has effectively realized field bus data acquisition, data transmission, data information exchange, control command transmission, functions such as wireless remote monitoring in real time.And the Industrial Ethernet technology directly applied to communication between industrial field device, will make that equipment is networked, integrated more, distribution, node intellectuality, better application and industry spot control.
Description of drawings
Describe the present invention in detail below in conjunction with the drawings and specific embodiments.
Fig. 1 represents this invention system architecture synoptic diagram.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
As shown in Figure 1, will change Ethernet system based on the serial ports of field bus data acquisition and be applied in the high-low pressure intelligent monitor system, electric equipment 1 will be monitored.
In the present embodiment, general purpose personal computer 4 and the field bus communication interface adapter 3 that is connected with general purpose personal computer 4 have constituted basic host computer system 6.Connecting a plurality of intelligent acquisition modules 2 by field bus communication interface adapter 3, a plurality of intelligent acquisition modules 2 connect a plurality of electric equipments 1, and it is monitored.General purpose personal computer 4 is realized communicating by letter with the full-duplex mode of 2 of a plurality of intelligent acquisition modules by field bus communication interface adapter 3.
Serial ports commentaries on classics Ethernet system based on field bus data acquisition also comprises control center's computing machine 5, and personal computer 4 connects control center's computing machine 5 by Ethernet.
In the whole system, host computer system 6 is responsible for the overall scheduling of systems, sends order to network node, the receiving node data, and nodal information analyzed, stores, shows or print.Data acquisition and control that all kinds of intelligent acquisition modules 2 are responsible for a plurality of electric equipments 1 input or output information with analog quantity or switching value.
Host computer system 6 can connect control center's computing machine 5 by Ethernet by many serial servers equipment or D-Link router.Ethernet is the system bus that is connected to various intelligent objects 2 in this connection, is again fieldbus.
The present invention has realized that serial equipment links to each other with Ethernet, solves the system integration problem of multiple industrial bus well, has also greatly enriched the system of industrial field bus simultaneously, impels it to higher development.Employing full-duplex mode communication substitutes original bus-type CSMA/CD technology with switching technology, has avoided having reduced the waste of channel width because a plurality of websites are shared and competitive channel causes the collision that takes place.Adopt full-duplex communication, improve the utilization factor of channel.
In the concrete course of work, at first, host computer system 6 sends order to network node, and all kinds of intelligent acquisition module 2 acquisition controlling data input or output signal.For example in the reality, except that to high voltage power distribution cashier's office in a shop analog quantity and switching value monitors, also can be used for monitoring and control to electric equipment running statuses such as some important low-voltage distribution and low voltage motors.
Then, host computer system 6 receiving node data, and nodal information analyzed, stores, shows or print.
Then, general purpose personal computer 4 is transferred to control center's computing machine 5 by many serial servers equipment or D-Link router by Ethernet, in real time monitoring circuit equipment 1 running status.
The supvr carries out real-time remote monitoring, remote equipment debugging and remote equipment failure diagnosis and processing at the distribution monitor center to field condition by control center's computing machine 5.
More than show and described ultimate principle of the present invention, principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that describes in the foregoing description and the instructions just illustrates principle of the present invention; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (2)
1. the serial ports based on field bus data acquisition changes Ethernet system, comprise host computer system and a plurality of intelligent acquisition module, it is characterized in that, described host computer system comprises general purpose personal computer, with the field bus communication interface adapter that is connected with general purpose personal computer, the field bus communication interface adapter connects a plurality of intelligent acquisition modules;
Described serial ports based on field bus data acquisition changes Ethernet system, also comprises control center's computing machine, and described personal computer connects control center's computing machine by Ethernet.
2. the serial ports based on field bus data acquisition according to claim 1 changes Ethernet system, it is characterized in that, described general purpose personal computer adopts full-duplex mode to communicate by letter with a plurality of intelligent acquisition intermodules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200810201366XA CN101414177A (en) | 2008-10-17 | 2008-10-17 | System for converting serial port to Ethernet based on field bus data acquisition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200810201366XA CN101414177A (en) | 2008-10-17 | 2008-10-17 | System for converting serial port to Ethernet based on field bus data acquisition |
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| Publication Number | Publication Date |
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| CN101414177A true CN101414177A (en) | 2009-04-22 |
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| CNA200810201366XA Pending CN101414177A (en) | 2008-10-17 | 2008-10-17 | System for converting serial port to Ethernet based on field bus data acquisition |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101937214A (en) * | 2010-07-13 | 2011-01-05 | 中交公路规划设计院有限公司 | Industrial Ethernet based monitoring system of sea-crossing suspension bridge |
| CN102142965A (en) * | 2010-02-03 | 2011-08-03 | 中电广通股份有限公司 | Industrial Ethernet switch |
| CN102255784A (en) * | 2010-05-21 | 2011-11-23 | 四零四科技股份有限公司 | Field bus gateway using virtual serial field bus port and data transfer method thereof |
| CN102722168A (en) * | 2012-06-29 | 2012-10-10 | 上海浦江能源管理有限公司 | Method for controlling field equipment and control system |
| CN102759932A (en) * | 2012-07-05 | 2012-10-31 | 中国科学技术大学 | Control device and control method for plurality of paths of gas mass flow meters |
| CN103150282A (en) * | 2013-03-29 | 2013-06-12 | 深圳市磊科实业有限公司 | Method for automatically configuring RS422/RS485 through flow control parameters and system for implementing same |
| CN111198548A (en) * | 2020-01-18 | 2020-05-26 | 清华大学 | Power system and information system combined scheduling system based on intelligent node overlay network |
-
2008
- 2008-10-17 CN CNA200810201366XA patent/CN101414177A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102142965A (en) * | 2010-02-03 | 2011-08-03 | 中电广通股份有限公司 | Industrial Ethernet switch |
| CN102255784A (en) * | 2010-05-21 | 2011-11-23 | 四零四科技股份有限公司 | Field bus gateway using virtual serial field bus port and data transfer method thereof |
| CN101937214A (en) * | 2010-07-13 | 2011-01-05 | 中交公路规划设计院有限公司 | Industrial Ethernet based monitoring system of sea-crossing suspension bridge |
| CN101937214B (en) * | 2010-07-13 | 2012-09-05 | 中交公路规划设计院有限公司 | Industrial Ethernet based monitoring system of sea-crossing suspension bridge |
| CN102722168A (en) * | 2012-06-29 | 2012-10-10 | 上海浦江能源管理有限公司 | Method for controlling field equipment and control system |
| CN102759932A (en) * | 2012-07-05 | 2012-10-31 | 中国科学技术大学 | Control device and control method for plurality of paths of gas mass flow meters |
| CN103150282A (en) * | 2013-03-29 | 2013-06-12 | 深圳市磊科实业有限公司 | Method for automatically configuring RS422/RS485 through flow control parameters and system for implementing same |
| CN111198548A (en) * | 2020-01-18 | 2020-05-26 | 清华大学 | Power system and information system combined scheduling system based on intelligent node overlay network |
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Open date: 20090422 |