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 PDF

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Publication number
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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client
selector
nio
event handler
channel
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CN108111578B (en
Inventor
吕非
吴�琳
陈蕾
阙波
韩韬
郑贤舜
宋云翔
翟长国
王丙文
叶清泉
邵学俭
郑圣
何鸣
何鸣一
吴雪琼
王必恒
谭志军
徐玮
李怀良
宗伟康
夏惠惠
夏陈喆
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State Grid Corp of China SGCC
State Grid Zhejiang Electric Power Co Ltd
NARI Group Corp
Nari Technology Co Ltd
NARI Nanjing Control System Co Ltd
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State Grid Corp of China SGCC
State Grid Zhejiang Electric Power Co Ltd
NARI Group Corp
Nari Technology Co Ltd
NARI Nanjing Control System Co Ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/01Protocols
    • H04L67/12Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00Arrangements for program control, e.g. control units
    • G06F9/06Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/46Multiprogramming arrangements
    • G06F9/466Transaction processing
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06QINFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q50/00Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
    • G06Q50/06Energy or water supply
    • H02J13/0006
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/16Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
    • H04L69/161Implementation details of TCP/IP or UDP/IP stack architecture; Specification of modified or new header fields
    • H04L69/162Implementation 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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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Software Systems (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Economics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Human Resources & Organizations (AREA)
  • Computing Systems (AREA)
  • Marketing (AREA)
  • Primary Health Care (AREA)
  • Strategic Management (AREA)
  • Tourism & Hospitality (AREA)
  • General Business, Economics & Management (AREA)
  • Water Supply & Treatment (AREA)
  • Medical Informatics (AREA)
  • Public Health (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer And Data Communications (AREA)
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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

The method of distribution terminal data acquisition platform access terminal equipment based on NIO
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.
CN201711282677.9A 2017-11-28 2017-11-28 Method for accessing power distribution terminal data acquisition platform into terminal equipment based on NIO Active CN108111578B (en)

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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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