CN108111578A - The method of distribution terminal data acquisition platform access terminal equipment based on NIO - Google Patents
The method of distribution terminal data acquisition platform access terminal equipment based on NIO Download PDFInfo
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- CN108111578A CN108111578A CN201711282677.9A CN201711282677A CN108111578A CN 108111578 A CN108111578 A CN 108111578A CN 201711282677 A CN201711282677 A CN 201711282677A CN 108111578 A CN108111578 A CN 108111578A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
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- G—PHYSICS
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
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- G—PHYSICS
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- G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
- G06Q50/06—Energy or water supply
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- H02J13/0006—
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
- H04L69/161—Implementation details of TCP/IP or UDP/IP stack architecture; Specification of modified or new header fields
- H04L69/162—Implementation details of TCP/IP or UDP/IP stack architecture; Specification of modified or new header fields involving adaptations of sockets based mechanisms
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Abstract
The invention discloses a kind of methods of the distribution terminal data acquisition platform access terminal equipment based on NIO, it overcomes in traditional " multi-threading correspondence ", each client link corresponds to a sub-line journey, and the shortcomings that sub-line journey needs to maintain and establishes data interaction, limitation of the Thread Count to terminal access scale can be opened up by avoiding computer, by the selector of NIO to client（Terminal device）Into walking along the street management, and pass through each link state of selector time-sharing polling, realize the pattern for first accessing post processing, the substantial amounts of terminal links of one or several thread managements can be passed through, the upper limit of single server number of access terminals is greatly improved, reduces requirement of the system to server hardware performance, improves the stability of program, this reliability and maintainability accessed to extensive distribution terminal is greatly improved, and has a good application prospect.
Description
Technical field
The present invention relates to a kind of methods of the distribution terminal data acquisition platform access terminal equipment based on NIO, belong to and match somebody with somebody
Electric automation technical field.
Background technology
The last one link of power distribution network as electrical power trans mission/distribution system, realize automation degree with for electricity consumption quality and
Reliability is closely related.
In recent years, intelligent distribution network be intelligent grid build in an important ring, it by the present computer technology, communication
Network technology is integrated in one, on power distribution network equipment carry out a distant place monitor, coordinate and control in real time, be improve power supply quality,
Improve power supply reliability, the important means for expanding power supply capacity, realizing the operation of power distribution network high-efficiency and economic.
One important feature of power distribution network is exactly that terminal device is multi-point and wide-ranging, and which results in distribution automation construction and dimensions
The cost of shield is all very high.At present, traditional distribution acquisition server-side uses " multithreading " communication pattern, and distribution terminal is often
Long connection mode, when link communication reaches the upper limit, the problem of will appear from not extending, in addition, the communication efficiency in single thread
It is relatively low, the performance of this system can be influenced.Therefore, a kind of distribution terminal data acquisition for being not controlled by Thread Count how is developed
Platform promotes the quantity of single server access terminal equipment, has very important meaning, is currently to continue asking for solution
Topic.
The content of the invention
The invention aims to existing distribution acquisition server-side is overcome to use " multithreading " communication pattern, Wu Fakuo
Exhibition, and the problem of communication efficiency in single thread is relatively low.The access of the distribution terminal data acquisition platform based on NIO of the present invention
The method of terminal device, based on NIO technologies to client（Terminal device）Link management passes through each link of selector time-sharing polling
State realizes the pattern for first accessing post processing, can be by the substantial amounts of terminal links of one or several thread managements, effectively
Single server terminal access quantity is improved, requirement of the right system to server hardware is reduced, improves data acquisition
Stability and reliability.
In order to achieve the above object, the technical solution adopted in the present invention is：
A kind of method of the distribution terminal data acquisition platform access terminal equipment based on NIO, comprises the following steps,
Step（A）, initialization task controller, by the Channel channel registrations of server end into selector, meanwhile, addition
Corresponding event handler；
Step（B）, the socketChannel information lists of associated client are obtained by selector, and be sequentially connected it is legal
Client；
Step（C）, the data manipulation of reading client is cycled by selector, by the data of reading successively by server end
The event handler of Channel passages addition is performed；
Step（D）, after Xun Huan reads all data manipulations for having connected legal client, close the Channel of server end
Passage closes selector.
The method of the foregoing distribution terminal data acquisition platform access terminal equipment based on NIO, step（C）, pass through choosing
The data manipulation of device Xun Huan reading client is selected, utilisation system timeslice, searching loop reading is all to have connected legal visitor
Family end state.
The method of the foregoing distribution terminal data acquisition platform access terminal equipment based on NIO, step（A）Initialization is appointed
Business controller, by the Channel channel registrations of server end into selector, comprises the following steps,
（A1）, obtain the configuration information of server end；
（A2）, judge to need whether Channel numbers of channels to be started are more than zero, if less than zero, continue waiting for；If more than
Zero, then it performs（A3）；
（A3）, it would be desirable to the Channel channel registrations of startup to selector.
The method of the foregoing distribution terminal data acquisition platform access terminal equipment based on NIO, it is characterised in that：Step
（B）, the socketChannel information lists of associated client are obtained by selector, and legal client is sequentially connected,
When being associated there are new client, task controller increases a SocketChannel newly and is bound with the client, and will
SocketChannel updates to socketChannel information lists, convenient for selector can circulatory monitoring it is each
Whether the corresponding clients of SocketChannel occur data manipulation.
The method of the foregoing distribution terminal data acquisition platform access terminal equipment based on NIO, it is characterised in that：Step
（C）, the data manipulation of reading client is cycled by selector, the data of reading are led to successively by the Channel of server end
The event handler of road addition is performed, and is comprised the following steps,
（C1）, judge that current client operation identifies whether to close, if closing, carry out the client operation mark of next bit
Judge；If it does not close；Then perform（C2）；
（C2）, according to the key assignments of current client, determine whether to access corresponding event handler, if so, access pair
The event handler answered, and perform（C3）；If it is not, it then directly performs（C3）；
（C3）, according to the key assignments of current client, the corresponding event handler of read operation is determined whether, if so, reading behaviour
Make corresponding event handler, and perform（C4）；If it is not, it then directly performs（C4）；
（C4）, according to the key assignments of current client, the corresponding event handler of write operation is determined whether, if so, writing behaviour
Make corresponding event handler, and perform（C5）；If it is not, it then directly performs（C5）；
（C5）, return（C1）, until it is all connected legal client cycle and read terminate.
The method of the foregoing distribution terminal data acquisition platform access terminal equipment based on NIO, step（A）, the thing
It, will convenient for event handler added with IEC60870-5-101 and IEC60870-5-104 agreement stipulations processors in part processor
After the client data of reading is parsed by IEC60870-5-101 and IEC60870-5-104 agreement stipulations processor, at execution
Reason.
The beneficial effects of the invention are as follows：The distribution terminal data acquisition platform access terminal equipment based on NIO of the present invention
Method, overcome in traditional " multi-threading correspondence ", each client link corresponds to a sub-line journey, and sub-line journey needs
The shortcomings that maintaining and establishing data interaction, limitation of the Thread Count to terminal access scale can be opened up by avoiding computer, be passed through
The selector of NIO is to client（Terminal device）Into walking along the street management, and pass through each link state of selector time-sharing polling, realize
The pattern of post processing is first accessed, separate unit can be greatly improved by the substantial amounts of terminal links of one or several thread managements
The upper limit of server number of access terminals reduces requirement of the system to server hardware performance, improves the stability of program,
This reliability and maintainability accessed to extensive distribution terminal is greatly improved, and has a good application prospect.
Description of the drawings
Fig. 1 is the flow chart of the method for the distribution terminal data acquisition platform access terminal equipment based on NIO of the present invention.
Specific embodiment
Below in conjunction with Figure of description, the present invention will be further described.Following embodiment is only used for clearly
Illustrate technical scheme, and be not intended to limit the protection scope of the present invention and limit the scope of the invention.
The method of the distribution terminal data acquisition platform access terminal equipment based on NIO of the present invention, client（Terminal is set
It puts）- data acquisition based on NIO technologies realize, by the NIO communication technologys carry out terminal device link management, pass through selector
Each link state of time-sharing polling, realizes the pattern for first accessing post processing, can be substantial amounts of by one or several thread managements
Terminal links are effectively improved single server terminal access quantity, reduce requirement of the right system to server hardware, carry
The stability and reliability of data acquisition have been risen, as shown in Figure 1, following steps are specifically included,
Step（A）, initialization task controller, by the Channel channel registrations of server end into selector, meanwhile, addition
Corresponding event handler, comprises the following steps,
（A1）, obtain the configuration information of server end；
（A2）, judge to need whether Channel numbers of channels to be started are more than zero, if less than zero, continue waiting for；If more than
Zero, then it performs（A3）；
（A3）, it would be desirable to the Channel channel registrations of startup to selector,
Added with IEC60870-5-101 and IEC60870-5-104 agreement stipulations processors in the event handler, convenient for thing
The client data of reading is passed through IEC60870-5-101 and IEC60870-5-104 agreement stipulations processor solutions by part processor
After analysis, processing is performed, supports the distribution terminal that access communications agreement is IEC60870-5-101 and IEC60870-5-104, it can
Other application service will be given in the gathered data parsed in a manner of message or E files etc.；
Channel passages are the I/O objects of NIO technologies, and the input and output work of data flow can be completed using Channel passages
Make, the data flow of the interaction of Channel passages and outside is generally all stored in Channel buffering areas, ChannelHandler
The business event processing base class of NIO technologies, when server end initializes, all event handlers of addition all inherit in
ChannelHandler, event handler can read the data in channel buffer, and be passed after necessary business processing
Next event handler is passed, until completing all data processing works；
Step（B）, the socketChannel information lists of associated client are obtained by selector, and be sequentially connected it is legal
Client, when being associated there are new client, task controller increases a SocketChannel and the client newly
Binding, and by SocketChannel updates to socketChannel information lists, convenient for selector can circulatory monitoring it is every
Whether the corresponding client of a SocketChannel occurs data manipulation；
Step（C）, the data manipulation of reading client is cycled by selector, by the data of reading successively by server end
The event handler of Channel passages addition is performed, and selector is the channel management class of NIO technologies, during utilisation system
Between piece, searching loop read it is all has connected legal client state, comprise the following steps,
（C1）, judge that current client operation identifies whether to close, if closing, carry out the client operation mark of next bit
Judge；If it does not close；Then perform（C2）；
（C2）, according to the key assignments of current client, determine whether to access corresponding event handler, if so, access pair
The event handler answered, and perform（C3）；If it is not, it then directly performs（C3）；
（C3）, according to the key assignments of current client, the corresponding event handler of read operation is determined whether, if so, reading behaviour
Make corresponding event handler, and perform（C4）；If it is not, it then directly performs（C4）；
（C4）, according to the key assignments of current client, the corresponding event handler of write operation is determined whether, if so, writing behaviour
Make corresponding event handler, and perform（C5）；If it is not, it then directly performs（C5）；
（C5）, return（C1）, until it is all connected legal client cycle and read terminate；
Step（D）, after Xun Huan reads all data manipulations for having connected legal client, close the Channel of server end
Passage closes selector.
In conclusion the method for the distribution terminal data acquisition platform access terminal equipment based on NIO of the present invention, overcomes
In traditional " multi-threading correspondence ", each client link corresponds to a sub-line journey, and sub-line journey needs to maintain and build
The shortcomings that vertical data interaction, limitation of the Thread Count to terminal access scale can be opened up by avoiding computer, pass through the selector of NIO
To client（Terminal device）Into walking along the street management, and pass through each link state of selector time-sharing polling, realize first to access and locate afterwards
The pattern of reason can be greatly improved single server access by the substantial amounts of terminal links of one or several thread managements
The upper limit of terminal quantity reduces requirement of the system to server hardware performance, improves the stability of program, this is to extensive
The reliability and maintainability of distribution terminal access is greatly improved, and has a good application prospect.
Basic principle, the main features and advantages of the present invention have been shown and described above.The technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, and the above embodiments and description only describe the originals of the present invention
Reason, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes and improvements
It all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent circle
It is fixed.
Claims (6)
1. the method for the distribution terminal data acquisition platform access terminal equipment based on NIO, it is characterised in that：Including following step
Suddenly,
Step（A）, initialization task controller, by the Channel channel registrations of server end into selector, meanwhile, addition
Corresponding event handler；
Step（B）, the socketChannel information lists of associated client are obtained by selector, and be sequentially connected it is legal
Client；
Step（C）, the data manipulation of reading client is cycled by selector, by the data of reading successively by server end
The event handler of Channel passages addition is performed；
Step（D）, after Xun Huan reads all data manipulations for having connected legal client, close the Channel of server end
Passage closes selector.
2. the method for the distribution terminal data acquisition platform access terminal equipment according to claim 1 based on NIO, special
Sign is：Step（C）, the data manipulation of reading client, utilisation system timeslice are cycled by selector, searching loop is read
It takes and all has connected legal client state.
3. the method for the distribution terminal data acquisition platform access terminal equipment according to claim 1 based on NIO, special
Sign is：Step（A）Initialization task controller, by the Channel channel registrations of server end into selector, including following
Step,
（A1）, obtain the configuration information of server end；
（A2）, judge to need whether Channel numbers of channels to be started are more than zero, if less than zero, continue waiting for；If more than
Zero, then it performs（A3）；
（A3）, it would be desirable to the Channel channel registrations of startup to selector.
4. the method for the distribution terminal data acquisition platform access terminal equipment according to claim 1 based on NIO, special
Sign is：Step（B）, the socketChannel information lists of associated client are obtained by selector, and are sequentially connected conjunction
The client of method, when being associated there are new client, task controller increases a SocketChannel and the client newly
End binding, and the SocketChannel is updated to socketChannel information lists, it being capable of circulatory monitoring convenient for selector
Whether each corresponding clients of SocketChannel occur data manipulation.
5. the method for the distribution terminal data acquisition platform access terminal equipment according to claim 1 based on NIO, special
Sign is：Step（C）, the data manipulation of reading client is cycled by selector, by the data of reading successively by server end
Channel passages addition event handler performed, comprise the following steps,
（C1）, judge that current client operation identifies whether to close, if closing, carry out the client operation mark of next bit
Judge；If it does not close；Then perform（C2）；
（C2）, according to the key assignments of current client, determine whether to access corresponding event handler, if so, access pair
The event handler answered, and perform（C3）；If it is not, it then directly performs（C3）；
（C3）, according to the key assignments of current client, the corresponding event handler of read operation is determined whether, if so, reading behaviour
Make corresponding event handler, and perform（C4）；If it is not, it then directly performs（C4）；
（C4）, according to the key assignments of current client, the corresponding event handler of write operation is determined whether, if so, writing behaviour
Make corresponding event handler, and perform（C5）；If it is not, it then directly performs（C5）；
（C5）, return（C1）, until it is all connected legal client cycle and read terminate.
6. the method for the distribution terminal data acquisition platform access terminal equipment according to claim 1 based on NIO, special
Sign is：Step（A）, the event handler is interior to be added at IEC60870-5-101 and IEC60870-5-104 agreement stipulations
Device is managed, advises the client data of reading by IEC60870-5-101 and IEC60870-5-104 agreements convenient for event handler
About after processor parsing, processing is performed.
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| CN201711282677.9A CN108111578B (en) | 2017-11-28 | 2017-11-28 | Method for accessing power distribution terminal data acquisition platform into terminal equipment based on NIO |
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| CN112395083A (en) * | 2020-09-30 | 2021-02-23 | 腾讯科技（深圳）有限公司 | Resource file release method and device |
| CN114205303A (en) * | 2021-10-26 | 2022-03-18 | 国网河北省电力有限公司营销服务中心 | Self-service terminal access method, server and self-service terminal access system |
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| CN108111578B (en) | 2021-06-04 |
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