CN202047868U - On-line mine dust monitoring system based on OPC (Organic Photoconductor) - Google Patents
On-line mine dust monitoring system based on OPC (Organic Photoconductor) Download PDFInfo
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- CN202047868U CN202047868U CN2011200940216U CN201120094021U CN202047868U CN 202047868 U CN202047868 U CN 202047868U CN 2011200940216 U CN2011200940216 U CN 2011200940216U CN 201120094021 U CN201120094021 U CN 201120094021U CN 202047868 U CN202047868 U CN 202047868U
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Abstract
The utility model discloses an on-line mine dust monitoring system based on an OPC (Organic Photoconductor), which comprises a field data acquisition system and an upper computer system, and is characterized in that the field data acquisition system comprises a PLC (programmable logic controller), a dust concentration sensor, an infrared sensor, a flow sensor, a temperature sensor and a humidity sensor; the dust concentration sensor, the infrared sensor, the flow sensor, the temperature sensor and the humidity sensor are connected with the PLC by signal transmission lines; the PLC is connected with the upper computer system by an RS485/CAN conversion module; and the upper computer system is provided with an OPC server and can communicate with the PLC in the OPC standard mode. The on-line mine dust monitoring system can overcome the communication barrier between the PLC and the upper computer system due to the locking of a PLC communication protocol in the prior art, so that the integration of the system can be strengthened, the openness and the interoperability of the system are enhanced substantially, and the practicability is strong.
Description
Technical field
The utility model relates to a kind of mine dust on-line monitoring system, and particularly a kind of mine coal dust on-line monitoring system based on OPC belongs to mine safety Detection ﹠ Controling field.
Background technology
Mine dust real time and on line monitoring of the prior art system generally comprises on-site data gathering system and master system, and it adopts commercially available configuration software, waits and develops as INTOUCH, " KingView ".Though this class software is easy to learn and use, the price general charged costliness, and also the versatility of this class software exists redundant to concrete application scenario.Though above-mentioned on-line monitoring system can be used in mine dust and monitors in real time, also exist defective, mainly show: the one, communicating by letter between on-site data gathering system and the master system exists limitation; The 2nd, the composition of on-site data gathering system is unreasonable.
The utility model content
Task of the present utility model is to solve the technological deficiency that the mine dust on-line monitoring system exists in the prior art, and a kind of mine dust on-line monitoring system based on OPC is provided.
Its technical solution is:
A kind of mine dust on-line monitoring system based on OPC, comprise on-site data gathering system and master system, the on-site data gathering system comprises programmable logic controller (PLC), sensor of dust concentration, infrared sensor, flow transmitter, temperature pick up and humidity sensor, sensor of dust concentration, infrared sensor, flow transmitter, temperature pick up is connected programmable logic controller with humidity sensor by signal transmission line, be connected by the RS485/CAN modular converter between programmable logic controller and the master system, master system is provided with opc server, communicates with the OPC standard mode between master system and the programmable logic controller.
Above-mentioned on-site data gathering system is provided with voice alarm circuit, and voice alarm circuit connects programmable logic controller by signal transmission line.
Above-mentioned on-site data gathering system is provided with the automatic regulating valve that can control dust flow in the mine dust dust pelletizing system, and automatic regulating valve connects programmable logic controller by signal transmission line.
Above-mentioned master system is by the Internet connection remote user terminals.
The utlity model has following useful technique effect:
The utility model is by being provided with opc server in master system, ((OLE for Process Control) standard mode communicates with OPC between master system and programmable logic controller, can solve exist in the prior art because the communication barrier between open itself and the master system that is caused of programmable logic controller (PLC) communication protocol, the integration of system is greatly strengthened, significantly improved the opening and the interoperability manipulation of system, practical.
Description of drawings
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is described:
Figure is the structural principle schematic block diagram of a kind of embodiment of the utility model.
The specific embodiment
Referring to accompanying drawing, a kind of mine dust on-line monitoring system based on OPC comprises on-site data gathering system 2 and master system 1.On-site data gathering system 2 comprises programmable logic controller (PLC) 201, sensor of dust concentration 202, infrared sensor 203, flow transmitter 204, temperature pick up 205, humidity sensor 206, voice alarm circuit 207 and can control the automatic regulating valve 208 of dust flow in the mine dust dust pelletizing system that sensor of dust concentration 202, infrared sensor 203, flow transmitter 204, temperature pick up 205, humidity sensor 206, speech transducer 207 and automatic regulating valve 208 connect programmable logic controller 201 by signal transmission line.Be connected by RS485/CAN modular converter 3 between programmable logic controller 201 and the master system 1.Master system 1 is provided with (loading) opc server 101 and Web program unit (module) 102 and monitoring software unit (module) 103, communicates with the OPC standard mode between master system and the programmable logic controller.Above-mentioned master system can be by the Internet connection remote user terminals.
Below in conjunction with relevant technologies contents such as softwares, the utility model is done further explanation:
Above-mentioned programmable logic controller (PLC) can be selected S7-200CN for use, and S7-200CN is the localized product of Siemens S7-200PLC in China, has kept and S7-200 identical functions index, has followed the classical quality of S7-200.In view of advantage in price, the product of S7-200CN series is adopted in decision.CPU221, CPU222, CPU224, CPU224XP and many kinds of PLC of CPU226 are arranged in this series, and wherein CPU224 has identical extended capability with CPU226 series, and maximum can connect 7 expansion modules, and all has 6 independently high-speed counters.Different is, CPU226 has maximum I/O mouths, and 24 inputs/16 outputs that it is integrated are totally 40 switching value input/output points, other 24 switching value I/O points are at most also only arranged, in addition, it has program and the data space of 26K, also is maximum in this series.
Protocol conversion between above-mentioned RS485/CAN module realization 485 and the CAN, this modular converter is selected CAN485 intelligent CAN converter for use.CAN485 intelligent CAN converter is used to realize the conversion between CAN EBI and the RS485 EBI, because it is the converter that a kind of RS485 interface conversion becomes the CAN interface, this converter can use very easily at the main frame that adopts the RS485 interface or slave (as the field control unit intelligent network nodes etc.), do not need to change existing hardware configuration like this, the equipment that can make obtains the interface of CAN, realizes based on the network data of CAN net and the transmission of order.
Monitoring software in the relevant master system mainly comprises the selection of opc server, client-side program write design three parts with database.Particular content is as follows:
ZOPC Server is selected in the selection of opc server, opc server for use.ZOPC Server is the opc server software of Zhou Ligong company exploitation, support the ZLGCAN series interfaces card that operation is whole, as long as on PC, plug any or several in the ZLGCAN series interfaces card, book server software reruns, just can use the client software (such as configuration software: KingView, MCGS and INTOUCH or the like) of any support OPC agreement to be connected to this server, come to carry out the transmission of data with the CAN network by this server.
Writing of client-side program, the OPC standard is selected the automation interface standard for use here, and automation interface is the programming language design that VB/Delphi etc. supports ole automation, is the encapsulation to the custom interface function, has reduced the development difficulty of opc server and client.
Writing of CLIENT PROGRAM mainly comprises following five steps:
1). enumerate opc server.The function of mainly finishing in initialization procedure is to browse this machine or long-range opc server.This is that GetOPCServers method by the OPCServer interface realizes that this method can be returned the opc server array.2). connect opc server.In the OPC operating process, may cause multiple unusually, write healthy and strong program, the mistake that will be necessary is handled.Carry out false judgment earlier before the OPC operation, wrong program jumps to wrong processing section and subprocess is handled in call error.Inerrancy is carried out the opc server connection and is added group objects, is grouping then and resembles the attribute setting.3). add the OPC tag entry.Tag entry is the bridge that the client and server data connect, and read the field monitoring data and at first tag entry will be added in the opc server.4). data read/write.The OPC data access method mainly contains two kinds of synchronization of access and asynchronous access.OPC returns to the OPC application program to the data access result who obtains according to the requirement of OPC application program as the parameter of method during synchronization of access, and the OPC application program must be in wait state before the result is returned.Opc server is received the requirement of OPC application program and immediately method is returned during asynchronous access, and the OPC application program is carried out other processing subsequently.When opc server is finished data access, trigger the asynchronous access of OPC application program and finish incident, send the data access result to the OPC application program.Except these two kinds of methods, also have a kind of subscribing manner data acquisition, under this mode during numerical value change of opc server data buffer zone, will be with DataChange event notice OPC application program.Can know with asynchronous two kinds of data access modes relatively synchronously: method of synchronization handling procedure is simple, exploitation easily, but since visit finish before application program must wait for always, very big during in mass data visit or directly to device access to the access performance influence; Asynchronous system is provided with more complicated, and needs and incident are used in combination, but reading and writing data accuracy height.Adopted asynchronous system and subscribing manner to be incorporated into the line data read-write in this program.5). disconnect server.Before withdrawing from the OPC client application, should disconnect opc server earlier and connect, then could bolt down procedure.
The design of database.Database Systems are divided into real-time data base and historical data base, and real-time data base is the pith of industrial monitoring and control software, and it obtains field data timely and accurately is that the whole monitoring system operate as normal is to basic premise.The field monitoring transfer of data is sent into real-time data base through corresponding data preliminary treatment after the opc server buffer storage, deposit historical data base in according to requiring accordingly data are handled once more then.
Design about the Web service program.Development environment is selected ASP.NET, ASP.NET.ASP.NET is a unified Web development platform, and it provides the developer to create the required service of enterprise-level web application.Although the grammer of ASP.NET basically with the ASP compatibility, it also provides a new programming model and foundation structure to improve safety, scalability and the stability of application program.By increasing the ASP.NET function to existing ASP application program gradually, we can freely make its increase.ASP.NET is a compiling, based on the environment of .NET; We can create application program with the language (comprising Microsoft Visual Basic.NET, Microsoft Visual C# and Microsoft JScript.NET) of any .NET compatibility.In addition, whole M icrosoft.NET Framework can be used for any ASP.NET application program.The developer can be at an easy rate be benefited from these technology, and these technology comprise the CLR environment, type safety, succession of management etc.The IIS service.IIS (Internet Information Server, the internet information service) be a kind of Web (webpage) serviced component, comprising Web server, ftp server, NNTP server and smtp server, be respectively applied for aspects such as web page browsing, file transfer, press service and mail transmission, it makes to release news on network (comprising internet and LAN) and becomes very easy.IIS provides visit to Web server by virtual directory, and virtual directory can improve the website visiting safety by a lot of restrictions are set.
ADO.NET component accesses database is used in database access in ASP.NET.ADO.NET is based on the assembly that is used for data access in the .NET framework that Microsoft releases.ADO.NET is the extension and the development of ADO technology.The main feature of ADO.NET is to have the breakaway-element data structure, can be closely integrated with XML, can make up data from a plurality of different pieces of informations source, and have mutual and function that optimize with database.Comprised numerous classes among the ADO.NET, the programmer obtains data and access services by using these classes.
In the communication process, system's startup is intercepted process http port is intercepted, after the access request that listens to the remote client, start XML data processing module thread, from database, read deposit data in buffer area, pass to the respective remote client with soap message, realize real-time collection and control the field monitoring data.Communication process is shown in figure seven.
Safety Design.Because the IIS server is responsible for intercepting http port in Web communication, when arriving, remote access request resolves soap message, so any Web request all must visit the ASP.NET application program by IIS earlier.Whether the safety of IIS configuration directly affects the safety of system.By virtual directory to be released is provided with access rights, can effectively improve the safety of Web server.User grouping, and the restriction particular group of users is to the access rights in certain page or zone.During user access server, need submit username and password to, the checking of waiting for server to server.In user profile tables of data UsersInfo, the field of 3 necessity is arranged, user name Username, password Password, role UserRole, server search the user profile in the database when receiving user's logging request, and according to the corresponding authority of different role assignments.
Claims (4)
1. mine dust on-line monitoring system based on OPC, comprise on-site data gathering system and master system, it is characterized in that: described on-site data gathering system comprises programmable logic controller (PLC), sensor of dust concentration, infrared sensor, flow transmitter, temperature pick up and humidity sensor, sensor of dust concentration, infrared sensor, flow transmitter, temperature pick up is connected programmable logic controller with humidity sensor by signal transmission line, be connected by the RS485/CAN modular converter between programmable logic controller and the master system, communicate with the OPC standard mode between master system and the programmable logic controller.
2. the mine dust on-line monitoring system based on OPC according to claim 1 is characterized in that: described on-site data gathering system is provided with voice alarm circuit, and voice alarm circuit connects programmable logic controller by signal transmission line.
3. the mine dust on-line monitoring system based on OPC according to claim 2, it is characterized in that: described on-site data gathering system is provided with the automatic regulating valve that can control dust flow in the mine dust dust pelletizing system, and automatic regulating valve connects programmable logic controller by signal transmission line.
4. the mine dust on-line monitoring system based on OPC according to claim 1, it is characterized in that: described master system is by the Internet connection remote user terminals.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200940216U CN202047868U (en) | 2011-04-01 | 2011-04-01 | On-line mine dust monitoring system based on OPC (Organic Photoconductor) |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011200940216U CN202047868U (en) | 2011-04-01 | 2011-04-01 | On-line mine dust monitoring system based on OPC (Organic Photoconductor) |
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| CN202047868U true CN202047868U (en) | 2011-11-23 |
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| CN2011200940216U Expired - Fee Related CN202047868U (en) | 2011-04-01 | 2011-04-01 | On-line mine dust monitoring system based on OPC (Organic Photoconductor) |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103714005A (en) * | 2014-01-03 | 2014-04-09 | 福建龙净环保股份有限公司 | Method and system for debugging electrostatic fabric filter |
| CN103812734A (en) * | 2012-11-14 | 2014-05-21 | 上海工程技术大学 | Circuit breaker pressure resistant testing process monitoring system based on OPC (Ole for Process Control) technology |
| CN107018028A (en) * | 2017-05-24 | 2017-08-04 | 核工业理化工程研究院 | Data acquisition monitoring system and acquisition monitoring method based on CAN and OPC technology |
| CN113608502A (en) * | 2020-05-05 | 2021-11-05 | 广州宁基智能系统有限公司 | Workshop dust collecting equipment monitoring system based on OPC technology |
-
2011
- 2011-04-01 CN CN2011200940216U patent/CN202047868U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103812734A (en) * | 2012-11-14 | 2014-05-21 | 上海工程技术大学 | Circuit breaker pressure resistant testing process monitoring system based on OPC (Ole for Process Control) technology |
| CN103714005A (en) * | 2014-01-03 | 2014-04-09 | 福建龙净环保股份有限公司 | Method and system for debugging electrostatic fabric filter |
| CN107018028A (en) * | 2017-05-24 | 2017-08-04 | 核工业理化工程研究院 | Data acquisition monitoring system and acquisition monitoring method based on CAN and OPC technology |
| CN107018028B (en) * | 2017-05-24 | 2024-01-05 | 核工业理化工程研究院 | Data acquisition monitoring system and data acquisition monitoring method based on CAN bus and OPC technology |
| CN113608502A (en) * | 2020-05-05 | 2021-11-05 | 广州宁基智能系统有限公司 | Workshop dust collecting equipment monitoring system based on OPC technology |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111123 Termination date: 20120401 |