CN104660682B - A kind of OPC data collection and monitoring intelligent terminal based on TD-LTE - Google Patents
A kind of OPC data collection and monitoring intelligent terminal based on TD-LTE Download PDFInfo
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Abstract
The invention discloses a kind of OPC data collection based on TD LTE and monitoring intelligent terminal, including TD LTE communications management module, OPC data server-side, OPC client and access control module.OPC data collection and monitoring intelligent terminal based on TD LTE can establish reliable data acquisition and control instruction Transfer pipe between tension management information system and bottom monitoring device, using the interface and wireless communication automatic network-building function of standardization, realize the integration that enterprise information management and industrial process control in real time, with distributed monitoring, centralized data management ability, it is fast with data transmission bauds, it is portable removable, the on-site data gathering equipment controlled suitable for most of opc servers based on the exploitation of OPC DA specifications, both had and opened, efficient communication mechanism, the solution route of consistent access field equipment data is provided for monitoring system again.
Description
Technical field
The present invention relates to data collection station technical field, it is more particularly to a kind of based on TD-LTE OPC data collection with
Monitoring intelligent terminal.
Background technology
The information integration of industrial system or production process, enterprise information are realized using all kinds of remote intelligent monitoring technologies
It is horizontal to change the combination of management and Automation of Manufacturing Process, greatly limit can not only improve production efficiency, and be intelligent monitoring
The development of technology provides wide application field.
Remote data acquisition and the infrastructure device that monitor terminal is intelligent monitor system, at present mainly should with embedded system
Based on, realize control unit, I/O input units, data acquisition unit, GPIO units and communication unit (Ethernet,
GPRS, serial ports etc.) etc. it is integrated, carry out real time data processing and control.The major defect of existing terminal technology is：
(1) for data transferring based on wired network communication, system deployment is inconvenient, and engineering construction is higher with maintenance cost, and
Access technology is moved using GPRS etc., data transmission capabilities are relatively low, and reliability is poor, and time delay is longer, it is impossible to meet mass data
Real-time transmission require；(2) opening of monitoring data agreement, compatibility it is poor, monitoring system to bottom collecting device according to
Bad property is very strong, it is difficult to adapts to monitor on a large scale integrated with information management system.(3) data terminal using local data collection as
Main, binding data forwarding capability, application structure is too simple, only adapts to the monitoring network of static configuration, and autgmentability is poor.Pin
The defects of to the prior art, the present invention are accessed based on TD-LTE movements, establish the intelligent terminal of a kind of OPC data collection and monitoring
Technology, meets the functional requirement that New Generation of Intelligent monitoring system is integrated with information management system.
The content of the invention
The shortcomings that it is an object of the invention to overcome the prior art and deficiency, there is provided a kind of OPC data based on TD-LTE
Collection and monitoring intelligent terminal.
The purpose of the present invention is realized by following technical solution：
A kind of OPC data collection and monitoring intelligent terminal, including TD-LTE communication management modules, OPC based on TD-LTE
Data service end, OPC client and access control module, the TD-LTE communication management modules, which are realized, leads to terminal use
Letter mode and its parameter, data protocol etc. are configured and managed, and establish TD-LTE broadband wireless access and TCP/IP dynamic IPs
Mapping, the dynamic group net for supporting OPC data server-side and OPC client to pass through counterfoil (Stub)/agency (Proxy)；It is described
OPC client data exchange established with the COM/DCOM components of OPC data server-side by remote agent be connected, or pass through
Local COM chained libraries are established data exchange with the machine OPC services and are connected；The OPC client is sent out in a manner of either synchronously or asynchronously
Go out request of data, the data structure and agreement (data type, data length, refresh cycle) exchanged according to OPC teledatas, if
Data acquisition object, scope and parameter, refresh data are put, and the data of the teledata write-in local OPC services of acquisition are delayed
Area is deposited, or is forwarded to other long-range OPC data server-sides；Described OPC data server-side configuration local data cache mode,
Storage resource is distributed and data access interface parameter, refreshes each number of nodes in real time by device drives to local data collection port
According to managing the client of data access, establish the data acess method and data application model parameter of real-time data base (RTDB)
Configuration；The access control module establishes the control of authority of data access on the basis of the control of COM/DCOM far calls,
Data permission is set by the data access interface of OPC data server-side counterfoil and Client Agent, realizes gathered data not
With using lower security and uniformity.
The teledata, it transmits and exchanges realizes intelligence using TD-LTE mobile communication technologies and dynamic domain name method
C/S connections between energy terminal.
The transmission and exchange of the teledata, comprise the following steps that shown：
S1. monitoring field communication subnet parameter server is established, the OPC data server-side of intelligent terminal passes through the sim cards that dial
TD-LTE nets are registered to, by Wire Parameters such as native service title, SIM/USIM card numbers, dynamic IP addressing, service port numbers, with
XML file format is sent to communication subnet parameter server, and on line refreshable, realizes all data acquisition service ends of control domain
Mobile access parameter obtains in real time；
S2. the OPC client on intelligent terminal directly accesses communication subnet parameter server in a manner of IP address and HTTP,
The Remote Terminals for Weather Servics network connection parameter to be accessed is obtained, is accessed so as to be moved by TD-LTE, is realized and destination service end
Long-range COM/DCOM call and data access.
OPC data based on the TD-LTE collection and monitoring intelligent terminal, are transmitted with being adopted in exchange process in data
Data store organisation includes data page (Data Page), data block (Data Block) and data item (Data Item) three
Layer；Wherein, data page define monitoring node tidal data recovering attribute, realize data group in OPC standards (Data Group) with
Association between the table (Table) or view (View) of real-time data base；When the starting and termination of definition data block data acquisition
Between, data length and number, data page position and data sequential structure (array, single line chained list or tree structure)；Data item is determined
Justice individual data type, length, physical significance, constraints and data source (corresponding acquisition terminal or data acquisition node)；
According to requirement of the system monitoring to data acquisition, using the relational data model of space-time sequence, all definition of data item bags
P containing positional informationd, physical significance or logical relation Sd, temporal information d (t) three parts, this three parts composition data item basic number
According to structure：D (Pd, Sd, d (t)), supports space, logic and the inquiry of time three-dimensional data and refreshes, i.e., at period [t0, tf]
There are dependence d (t) for the data of interior moment t:Pd→d(t)；Sd→d(t)；t→d(t)；Secondly, data application business is supported
Modeling, with monitored object, the parameter identification of system or industrial process dynamic model and quantity of state output for target, establishes data
Relational database between the locus of acquisition node and physical logic parameter, realizes that multi-dimensional data intersects inquiry, data
Excavation and data fusion etc. provide basic data source and data model.
OPC data based on the TD-LTE collection and monitoring intelligent terminal, it is whole by the data defined in data page
Networking parameter, data terminal acquisition node and real time data sequence three classes relation are held, and by OPC data collection service and forwarding journey
Sequence writes corresponding data, forms target data page, is sent to OPC client, realizes data collection station distribution, self-organizing number
According to interactive function.
The OPC data server-side, the input of its data include local OPC client, the remote client based on TD-LTE
End and local data port (serial ports, ISA data cards, 485 buses, wireless network sensing network etc.) three classes.Server-side and visitor
Family end is interactive using OPC data structure (service, group and data item), i.e. the group of server-side and client, data item complete map,
Server-side realizes data acquisition protocol with local data port using device drives mode.The data of OPC data server module
Output uses the data mould of above-mentioned data page (Data Page), data block (Data Block) and data item (Data Item)
Type, is mapped by data definition attribute, can carry out data exchange with database, XML file etc..
Compared with prior art, the present invention having the following advantages that and beneficial effect：
1st, intelligent terminal according to the present invention has autonomous dynamic group net work(using 4G movement access technologies (TD-LTE)
Can, monitoring system installation and deployment are convenient, and maintenance cost is relatively low, and remote data transmission ability strengthens, real-time, good reliability,
Meet the teletransmission requirement of extensive monitoring data collection；
2nd, intelligent terminal according to the present invention have followed data acquisition OPC agreements, being capable of compatible industrial monitoring neck at present
Domain majority underlying device, data integration ability are stronger；
3rd, intelligent terminal according to the present invention uses Client/Server frameworks in function module, possesses TCP/IP
The application model of network, has good set expandability.
Brief description of the drawings
Fig. 1 is the OPC data collection of the present invention based on TD-LTE and monitoring intelligent termination function structure chart；
Fig. 2 is the schematic diagram of the OPC data server-side dynamic group net parameter setting and issue flow of wireless access of the present invention；
Fig. 3 is the OPC data collection of the present invention based on TD-LTE and monitoring intelligent terminal data page definition structure
Figure；
Fig. 4 is the OPC data server-side remote control Principle of Process figure of TD-LTE wireless access of the present invention.
Embodiment
With reference to embodiment and attached drawing, the present invention is described in further detail, but embodiments of the present invention are unlimited
In this.
Such as Fig. 1, a kind of OPC data collection and monitoring intelligent terminal based on TD-LTE, are divided into OPC clothes in functional structure
It is engaged in 15 3 end 1, OPC client 2 and TD-LTE mobile networks incoming end parts, forming Client/Server network application knots
Structure.Wherein OPC client 2 includes primary application program 3, realizes data read-write operation and state monitoring and management；Far call COM/
The proxy module 4 of DCOM；COM service management module 5；Client hardware and embedded system 6；Using safety management module 7 etc.
Functional unit or module.OPC server-sides 1 include main service routine 8, realize data acquisition and monitoring management, and client data is visited
Ask the response of request；The counterfoil 9 of far call COM/DCOM services；Data acquisition and monitoring (SCADA) management module 10；Service
Hold hardware and embedded system 11；COM service management module 12；Service safe management module 13；Drive local data collection port
The grade functional unit of dynamic model block 14 or module.
Data acquisition and monitoring intelligent terminal of the present invention, has TD-LTE telecommunication managements, OPC according to said structure
Four data service end, OPC client and access control big function modules.Communication management module realizes the communication used to terminal
Mode and its parameter, data protocol etc. are configured and managed, and establish TD-LTE broadband wireless access and TCP/IP dynamic IPs
Mapping, supports the dynamic group net of OPC data server-side and client by counterfoil (Stub)/agency (Proxy), in corresponding diagram 1
COM service management module 5, client hardware and embedded system 6, using safety management module 7, server-side hardware with it is embedded
System 11,15 several function lists of COM service management module 12, service safe management module 13 and TD-LTE mobile networks incoming end
The network connection and date transmission function of member or module；OPC client program 3 passes through remote agent module 4 and OPC data service
The COM/DCOM components at end establish data exchange connection, or establish data by local COM chained libraries and the machine OPC services and hand over
Change connection.Remote agent module 4 realizes communication connection and the server-side of cross-terminal using TD-LTE communication modules interface and parameter
Access, the RPC service of call operation system, start the corresponding com component of server-side.Client-side program is in a manner of either synchronously or asynchronously
Request of data is sent, the data structure and agreement (data type, data length, refresh cycle) exchanged according to OPC teledatas,
Data acquisition object, scope and parameter, refresh data, and the data that the teledata write-in local OPC of acquisition is serviced are set
Buffer area, or it is forwarded to other long-range OPC data server-sides；OPC data serve end program 8 mainly configures local data cache
Mode, storage resource distribution and data access interface parameter, it is real-time by device driver module 14 to local data collection port
Refresh each node data, manage the client 2 of data access, establish the data acess method and data of real-time data base (RTDB)
Application model parameter configuration；Access control module mainly on the basis of the control of COM/DCOM far calls, establishes data access
Control of authority, data permission is set by the data access interface of OPC data server-side counterfoil and Client Agent, realization adopts
Collect data security and uniformity under different application, COM service management module 5 in corresponding diagram 1, using safety management module 7
With the subscriber management function realized in COM service management module 12, service safe management module 13.
Such as Fig. 2, data acquisition and monitoring intelligent terminal of the present invention, remote data transmission and exchange use TD-LTE
Mobile communication technology and dynamic domain name method realize the C/S connections between intelligent terminal.Establish monitoring field communication subnet parameter clothes
Business device, the OPC data server-side 1 of intelligent terminal is registered to TD-LTE nets by the sim cards that dial, by native service title, SIM/
The Wire Parameters such as usim card number, dynamic IP addressing, service port number, communication subnet parameter service is sent to XML file format
Device, and on line refreshable, realize that the mobile access parameter at all data acquisition service ends of control domain obtains in real time.Intelligent terminal
On OPC client 2 can directly access communication subnet parameter server in a manner of IP address and HTTP, acquisition to be accessed long-range
Service terminal network connection parameter, is accessed so as to be moved by TD-LTE, realizes the long-range COM/DCOM tune with destination service end
With with data access.
Data acquisition and monitoring intelligent terminal of the present invention is transmitted in data and deposited with the data used in exchange process
Storage structure includes three layers of data page (Data Page), data block (Data Block) and data item (Data Item).Wherein, number
According to page definition, the tidal data recovering attribute of monitoring node, realizes data group in OPC standards (Data Group) and real-time data base
Table (Table) or view (View) between association；The starting of definition data block data acquisition is with terminating time, data length
With number, data page position and data sequential structure (array, single line chained list or tree structure)；Definition of data item individual data
Type, length, physical significance, constraints and data source (corresponding acquisition terminal or data acquisition node).According to system monitoring
Requirement to data acquisition, using the relational data model of space-time sequence, all definition of data item include positional information
Pd, physical significance or logical relation Sd, temporal information d (t) three parts, this three parts composition data item Data Structures：D
(Pd, Sd, d (t)), supports space, logic and the inquiry of time three-dimensional data and refreshes, i.e., period [t0, tf] interior moment t's
There are dependence d (t) for data:Pd→d(t)；Sd→d(t)；t→d(t).Secondly, data application business model is supported, with quilt
Monitored object, the parameter identification of system or industrial process dynamic model and quantity of state output are target, establish data acquisition node
Locus and physical logic parameter between relational database, realize multi-dimensional data intersect inquiry, data mining sum number
Basic data source and data model are provided according to fusion etc..
Data acquisition and monitoring intelligent terminal of the present invention, based on above-mentioned data structure, by fixed in data page
Adopted data terminal networking parameter, data terminal acquisition node and real time data sequence three classes relation, and gathered and serviced by OPC data
Write corresponding data with retransmission process, form target data page, be sent to OPC client, realize data collection station it is distributed,
Self-organizing data interaction function.The basic structure of data page is as shown in Figure 3.
Data acquisition and monitoring intelligent terminal of the present invention, the data input of its OPC data server module include
Local OPC client, the Terminal Server Client based on TD-LTE and local data port (serial ports, ISA data cards, 485 buses,
Wireless network sensing network etc.) three classes.Server-side is interacted with client using OPC data structure (service, group and data item), i.e.,
The group of server-side and client, data item complete map, server-side realize number with local data port using device drives mode
According to acquisition protocols.The data output of OPC data server module is using above-mentioned data page (Data Page), data block (Data
Block) and data item (Data Item) data model, mapped by data definition attribute, can be with database, XML file
Deng progress data exchange.
Data acquisition and monitoring intelligent terminal of the present invention, using above-mentioned TD-LTE mobile communication, is realized long-range
Control (remote control), the transmission of parameter regulation (remote regulating) operational order, examination ＆ verification issue function with local.As shown in figure 4, operational order
A data page, including rights management, operation object definition and order parameter value three classes data block are encrypted as according to safe class,
By monitoring center control operation computer 16 and personal information, purpose terminal and telemechanical node, operation content and security level, quilt
The binding such as parameter state inspection is controlled, OPC service terminals 17 carry out received remote control/remote regulating operation data page according to telemechanical agreement
Examination ＆ verification and protocol conversion.After telemechanical OPC terminal services 18 receive remote operation instruction, extraction or conversion and control instruction, pass through this
Ground data port is issued to bottom executing agency (relay switch or servomotor etc.), while returns to implementing result, so as to support
Remote control application.
The present invention is a kind of stand-alone intelligent terminal, has the dynamic group net based on TD-LTE wireless access, data acquisition, number
According to management and forwarding, remote control instruction transmitting function.Mainly embedded system, such as Microsoft are used in specific implementation
Windows CE, Android, Linux PDA etc..Wherein, since OPC standards employ Microsoft Windows COM/
DCOM technologies, therefore, prioritizing selection Microsoft Windows CE embedded system platforms, if select other systems, it is necessary to
The suitable component of increase exploitation COM/DCOM functions and service, the increase of technical research difficulty.For this reason, the present invention is mainly using as follows
Two class implementing platforms：
(1) data collection station uses arm processor (such as Samsung Cortex-A8 S5PV210) and Microsoft
Windows CE embedded systems, mainboard lead to input through keyboard, display screen, memory, SD storage cards/USB flash disk, GPRS/CDMA/4G
The interactive operation such as news, Ethernet peripheral slot, data storage and communication interface.In addition, according to data acquisition and monitoring needs,
Mainboard is with native data collection, DIO (being extended by simplifying isa bus), USB, RS485/232, Zigbee wireless communication etc.
Data collection terminal mouth；
(2) data service terminal uses arm processor (such as Samsung Cortex-A8 S5PV210) and Microsoft
One of Windows CE, Android, Linux PDA, mainboard with input through keyboard, display screen, memory, SD storage cards/USB flash disk,
Interactive operation peripheral slot, memory and the data communication interfaces such as GPRS/CDMA/4G communications, Ethernet.
The access of TD-LTE wireless communications is mainly using USB interface 4G communication modules and the data communication card being integrated on mainboard
Two ways.The product that 4G communication modules directly buy mobile communication equipment manufacturer is inserted into terminal, and data are led to
Letter card needs mobile communication access circuit being integrated on mainboard, plugs SIM card or usim card, different data cards is supported not
Same network formats, such as：GSM card, WCDMA cards, LTE cards etc..
The client of OPC intelligent terminals of the present invention based on TD-LTE realizes that technical solution is：In Windows
Using the OPC library files of Windows COM/DCOM technologies and C Plus Plus exploitation service routine on CE, establish and be adapted to embedded system
The COM/DCOM technology application architectures of system, integrate driving and the communication Protocol Conversion of local data port, according to monitoring field communication
The IP address of subnet parameter server, autonomous Connecting quantity server, and upload native service access address and operation information.
The client of OPC intelligent terminals of the present invention based on TD-LTE realizes that technical solution is：In above-mentioned insertion
In formula system platform, OPC client is developed using the OPC library files of Windows COM/DCOM technologies and C Plus Plus, or adopt
OPC client is realized with pure Java technology and is increased income engineering, it is necessary to establish Utgard, and Utgard, which is provided, utilizes pure Java language institute
The OPC library files write, can develop the client for meeting OPC DA2.0 specifications.In addition it is also possible to utilize EntireX DCOM
Technology or OPC XML-DA specifications develop OPC client, can be adapted to cross-platform.OPC client and server-side it is logical
Letter is carried out using TD-LTE wireless data communication, it is achieved thereby that the purpose of data acquisition and monitoring is carried out using mobile terminal,
With portability and mobility.
The client-side program function of OPC intelligent terminals based on TD-LTE includes：Service connection/disconnection, data read/write and
Chart is shown.
Service connection/disconnection realizes connection and the interrupt management with server, mainly configures the connection letter of client
Cease and create server object, and disconnect and destroy server object.First of all, it is necessary to set IP address and the domain of server
Name is to identify the server computer on network；Then, it is necessary to the ProgID or CLSID of com component be set, from there through note
Information in volume table identifies the OPC data service run on server computer；Finally, service access account is set, its
Username and password matches with the configuration on server.After client configures, it is possible to create one according to configuration information
A server object, the connect () of server invocation object, it is possible to realize and be connected with the correct of server end.
The read/write of client mainly realizes the data (value, quality, timestamp etc.) of reading service device, and writes a value into clothes
It is engaged in the item of device, so as to fulfill the monitoring and control to server.The execution of client read/write data function must with service
Device is correctly established after connection, and for actual needs, client needs to monitor in real time, and therefore, client is to server data
Read/write use sync cap, the item of continuous reading service device at a certain time interval is set, and data are stored.
Client chart show it is main realize by from the data that server is read in the form of curve map or other shapes figure
It has been shown that, so that it is more directly perceived.Chart is shown to be combined with digital independent function, by the real time data read from server into
Row processing, such as asks for the average value of data in a period of time, then draws the data after processing in the graph, main to support this
Ground monitoring function.
Intelligent terminal can be divided into by the process of TD-LTE modules or data card access network searches net, registration and dialing three
Step, detailed process are as follows：(1) search net automatically after starting, TD-LTE modules or data card are plugged after usim card powers on, will from
The network that dynamic search can access；(2) TD-LTE modules or data card are established with network connects, and searches network and matches somebody with somebody from the machine
Put file and read messaging parameter, dial in cordless communication network, would subscribe to wireless network cell after dial-up success and adhere to
In the mobile communication network, TD-LTE wireless networks distribute an internet ip to TD-LTE modules or data card；(3)TD-LTE
IP is distributed to data collection station by module or data card, and data collection station foundation is indirectly connected with internet.Wherein,
After TD-LTE modules or data card get IP, embedded system triggering TD-LTE modules or data card will using DHCP protocol
The IP address that net side obtains distributes to data collection station, so that data collection station can access network by the IP.
After data collection station is connected to network using TD-LTE wireless access, OPC data server-side receives teledata
Request, according to gathered data attribute aggregated data, forms data page and is sent to client；OPC client is by monitoring field communication
Subnet parameter server obtains the network connection parameter of destination service terminal, the connection with OPC data server-side is established, from the end
End is long-range to be obtained data or control instruction is sent to the server-side.
OPC client and server-side data exchange process are as follows：
(1) OPC client is connected on service terminal, and establishes OPC groups and OPC data item, wherein, for access process
Data, OPC client need the title of configured in advance (specified) data service and its run machine name or the end of the data service
Hold mobile network identification number and title, the information such as Item definition on data server.
(2) OPC client is accessed the visit realized to process data by the Group that is established to server-side and Item
Ask, the data source that client can select equipment (Device) or buffering area (Cache) is accessed as it, client crosses number of passes
Include the reading of process data, renewal according to accessing, subscription, write etc..
(3) completion notice, the process data access request at server customer in response end, and handled, lead to when finishing
During person in charge of reception at ceremonies family, such as asynchronous read/write, server will notify client in end of operation.
(4) website service space navigation and acquisition of the IP address of server-side from monitoring domain are accessed.Server-side is abnormal
When disconnecting the connection with client, give notice to client.
Intelligent terminal leading indicator
(1) real-time property index
According to the response speed of TD-LTE Radio Access Networks, the delay that p2p transmits data between data collection station is
Second level scope.Under the flow of conventional operation, the average overall delay of TD-LTE data communications is 1-1.5 seconds or so.Namely
Say, the data packet sent from TD-LTE OPC datas terminal substantially will reach data center at 1.5 seconds or so.Conversely, from data
The data packet at center also substantially reached data collection station at 1.5 seconds or so.Therefore, the transmission of TD-LTE network datas is real-time
Property, it can meet the requirement of most industries application.But for the extra high application system of requirement of real-time (e.g., monitoring electricity
The SCADA system of network operation), if the average delay of 2 seconds or so cannot be received, then TD-LTE communication modes may be not
Suitable.
(2) data communication rates index
Be 50Mbps since the traffic rate of TD-LTE networks reaches upstream peak speed, downlink peak rates be
100Mbps, therefore, the data communication speed between the OPC data terminal based on TD-LTE and between data terminal and data center
Rate can reach 10Mbps or so.From that is, the OPC data terminal based on TD-LTE can be continuously with 10Mbps's
Speed sends data to data center, and vice versa.Required according to system application reliability, when the data of application system in itself are put down
The equal traffic is when within 10Mbps, using TD-LTE networks come to carry out data remote transmission be than better suited.
Above-described embodiment is the preferable embodiment of the present invention, but embodiments of the present invention and from above-described embodiment
Limitation, other any Spirit Essences without departing from the present invention with made under principle change, modification, replacement, combine, simplification,
Equivalent substitute mode is should be, is included within protection scope of the present invention.
Claims (5)
1. a kind of OPC data collection and monitoring intelligent terminal based on TD-LTE, it is characterised in that：Including TD-LTE telecommunication managements
Module, OPC data server-side, OPC client and access control module, the TD-LTE communication management modules are realized to terminal
Communication mode and its parameter, the data protocol of use are configured and managed, and establish TD-LTE broadband wireless access and TCP/IP
The dynamic group net that the mapping of dynamic IP, support OPC data server-side and OPC client pass through counterfoil/agency；The OPC visitors
Family end is established data exchange with the COM/DCOM components of OPC data server-side by remote agent and is connected, or passes through local COM
Chained library is established data exchange with the machine OPC services and is connected；The OPC client sends data in a manner of either synchronously or asynchronously please
Ask, the data structure and agreement exchanged according to OPC teledatas, setting data acquisition object, scope and parameter, refresh data,
And by the data buffer area of the teledata write-in local OPC services of acquisition, or it is forwarded to other long-range OPC data services
End；OPC data server-side configuration local data cache mode, storage resource distribution and the data access interface parameter is right
Local data collection port refreshes each node data by device drives in real time, manages the client of data access, establishes real-time
The data acess method and data application model parameter configuration of database；The access control module is remotely adjusted in COM/DCOM
On the basis of control, the control of authority of data access is established, passes through the data of OPC data server-side counterfoil and Client Agent
Access interface sets data permission；
The transmission and exchange of the teledata, comprise the following steps that shown：
S1. monitoring field communication subnet parameter server is established, the OPC data server-side of intelligent terminal is registered by the sim cards that dial
To TD-LTE nets, by Wire Parameters, the parameter includes native service title, SIM/USIM card numbers, dynamic IP addressing, server-side
Slogan, is sent to communication subnet parameter server, and on line refreshable with XML file format, realizes all data acquisitions of control domain
The mobile access parameter of server-side obtains in real time；
S2. the OPC client on intelligent terminal directly accesses communication subnet parameter server in a manner of IP address and HTTP, obtains
The Remote Terminals for Weather Servics network connection parameter to be accessed, is accessed so as to be moved by TD-LTE, is realized remote with destination service end
Journey COM/DCOM is called and data access.
2. OPC data collection and monitoring intelligent terminal according to claim 1 based on TD-LTE, it is characterised in that：Institute
The teledata stated, its transmission and exchange are realized using TD-LTE mobile communication technologies and dynamic domain name method between intelligent terminal
C/S connections.
3. OPC data collection and monitoring intelligent terminal according to claim 1 based on TD-LTE, it is characterised in that：
Data are transmitted includes three layers of data page, data block and data item with the data store organisation used in exchange process；Wherein, data
The tidal data recovering attribute of page definition monitoring node, is realized in OPC standards between data group and the table or view of real-time data base
Association；The starting of definition data block data acquisition is with terminating time, data length and number, data page position and data sequence
Structure；Definition of data item individual data type, length, physical significance, constraints and data source；According to system monitoring logarithm
According to the requirement of collection, using the relational data model of space-time sequence, all definition of data item include positional information, physics
Meaning or logical relation, temporal information three parts；Secondly, data application business model is supported, with object, system or the work of being monitored
The parameter identification of industry process dynamic model is target with quantity of state output, and the locus and physics for establishing data acquisition node are patrolled
The relational database between parameter is collected, realizes that multi-dimensional data intersects inquiry, data mining and data fusion and provides basic data
Source and data model.
4. OPC data collection and monitoring intelligent terminal according to claim 3 based on TD-LTE, it is characterised in that：
Data terminal networking parameter, data terminal acquisition node and real time data sequence three classes relation defined in the data page, and by
OPC data collection service and retransmission process write-in corresponding data, form target data page, are sent to OPC client, realize data
Acquisition terminal is distributed, self-organizing data interaction function.
5. OPC data collection and monitoring intelligent terminal according to claim 1 based on TD-LTE, it is characterised in that：Institute
The OPC data server-side stated, the source of its data input include local OPC client, based on the Terminal Server Client of TD-LTE with
And local data port three classes.
Priority Applications (1)
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| CN108111589A (en) * | 2017-12-15 | 2018-06-01 | 广东工业大学 | Collecting method, device, equipment and computer readable storage medium |
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