CN103915899A - Autonomous networking structure and method for electric power automatic terminals - Google Patents
Autonomous networking structure and method for electric power automatic terminals Download PDFInfo
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- CN103915899A CN103915899A CN201410118617.3A CN201410118617A CN103915899A CN 103915899 A CN103915899 A CN 103915899A CN 201410118617 A CN201410118617 A CN 201410118617A CN 103915899 A CN103915899 A CN 103915899A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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Abstract
The invention discloses an autonomous networking structure and method for electric power automatic terminals. The autonomous networking structure for the electric power automatic terminals comprises a power distribution network master station system, an optical fiber Ethernet, power distribution sub-stations, in-station communication networks and the terminals; the power distribution sub-stations are connected with the power distribution network master station system through the optical fiber Ethernet. The terminals are connected with the power distribution sub-stations through the in-station communication networks. According to the autonomous networking method, all the terminals needing to have access to a network obtain PTP synchronous clocks, namely frame frequencies through the IEEE1588 protocol; time slots are divided according to the networking frame frequency time slot rule based on the TDMA technology; message time slot serial numbers are obtained according to IDs of the terminals; whether a current time slot is an obtained message time slot or not is judged; information on requests for networking is automatically reported; people wait to know whether the terminals agree to networking.
Description
Technical field
The present invention relates to automation equipment networking field, more specifically, relate to a kind of based on the autonomous group-network construction of power automation terminal and network-building method thereof.
Background technology
Along with the propelling of information age, the distribution terminal of information intelligence has covered whole intelligent grid, and a large amount of Intelligent power distribution terminals are widely used in intelligent grid, and wherein the technology of most critical is exactly networking and communicate by letter.Networking just can complete each end message mutual with gather, could realize main website to the sharing of each nodal information, and by the order of control centre accurately and timely be sent to each distributed terminal unit.Distribution line is the circuit of directly powering to end user, the so-called power distribution network of network being made up of this class circuit, i.e. distribution.
What networking at present adopted is full human configuration, after each accessing terminal to network, need to carry out terminal networking configuration at station end, completes networking by the lower extension terminal that station end server is set.What communication and information exchange adopted is polling mode, and part key point adopts active reporting, but what report that process takes is judge bus state, then sends message, repeats transmission after failure, and the frequency of failure transfinites and reports an error.
From networking mode, it is too strong to manually-operated dependence, has taken relatively many manpowers, and from information interaction angle, current message interaction ability is in message amount, message flow, and message is ageing etc. all there is the larger rising space in aspect.If only have a station end in network, a terminal, communication mode adopts station end inquisitorial, and bus is monopolized so, what bus load reflected is exactly directly effective traffic load, the effectiveness of information reading is the pay(useful) load of whole network namely, when having a station end, multiple terminals in network, still adopt poll inquiry mode, the pay(useful) load of whole network can reduce greatly, and for Intelligent power distribution terminal network system, the effect of its maximum is to process timely and effectively key message.
Summary of the invention
The present invention aims to provide a kind of autonomous group-network construction of a kind of power automation terminal and network-building method thereof that manpower is less, message interaction ability strong, network pay(useful) load is large that take.
The further object of the present invention is also to provide a kind of power automation end message exchange method.
The autonomous group-network construction of a kind of power automation terminal, comprise distribution network master station system, fiber optic Ethernet, distribution substation, station communication net, terminal, distribution substation is connected with described distribution network master station system by described fiber optic Ethernet, each terminal is connected with distribution substation by station communication net, and distribution network master station, distribution substation, terminal are all supported IEEE1588 technology and tdma communication technology.
The autonomous network-building method of a kind of base power automation terminal, comprises the following steps:
It is frame frequency that a1, the each terminal that needs access network obtain PTP synchronised clock by IEEE1588 agreement;
B1, according to TDMA technology according to networking frame frequency time slot principle divide time slot;
C1, obtain message time slot sequence number according to Termination ID;
D1, judge that whether current time slots is the message time slot obtaining;
E1, automatically report request networking information;
Whether f1, waiting station end agree to networking.
Described frame frequency is divided into 10 standard time slots, the first standard time slot is autonomous networking standard time slot, remaining time slot is divided into burst information time slot section and routine information time slot section by function as required, between adjacent standard time slot, buffer strip width is 20% of standard time slot, and each time slot of described standard time slot is divided into 10 message time slots.
Due to self clocking error of each terminal in actual application, therefore will be between each standard time slot reserved buffer territory, buffer strip width is chosen the performance index that depend primarily on terminal real-time clock.Active reporting request networking information adopts TDMA mode, now need in original standard time slot, continue to divide message time slot, will be according to the performance parameters requirement in autonomous networking stage in practical application, choose the interval and autonomous networking stage message slot time of standard time slot that autonomous networking takies.The new terminal networking or not yet in the terminal of station end registration in the autonomous networking stage, set up registration relation by a message time slot and station end.
Described Termination ID is the unique effective identification code of this terminal in group network system, can from the coding that dispatches from the factory of terminal, obtain, or shine upon according to IP address.
Described message timeslot number is to adopt ID to do the random number that seed generates, and this random number has been carried out to circumscription.
A kind of power automation end message exchange method, comprises the following steps:
A2: the successful terminal of networking obtains message time slot sequence number according to its ID;
B2: judge whether current time slots is the message time slot obtaining;
C2: send the number of timeslots information that takies of estimating;
D2: judge this terminal timeslot number whether acquisition station end distributes;
E2: judge whether current time slots is the time slot that station end distributes;
F2: transmission information.
The information of described transmission is divided into normality information and burst information.Normality information is mutual in routine information time slot section, and burst information is in burst information time slot section.
Compared with prior art, beneficial effect of the present invention:
1, improve the autonomous networking that completes that the endpoint registration success rate whole networking terminal quantity of comprehensive balance in autonomous networking stage and the relation of success rate can be completely automatical and efficient;
2, the occupation condition and the online and handoff procedure that goes offline that reduce manual entry can automatically complete, substantially without manual intervention.
Brief description of the drawings
Terminal equipment network model in Fig. 1 distribution automation system;
The distribution automation terminal representative network framework that Fig. 2 the present invention is applicable;
Fig. 3 the present invention terminal networking of autonomous networking stage flow chart;
Fig. 4 information interaction stage of the present invention flow chart.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described further, but embodiments of the present invention are not limited to this.
As shown in Figure 1, one based on IEEE1588 and the autonomous group-network construction of TDMA technology power automation terminal, is characterized in that, comprises distribution network master station system, fiber optic Ethernet, distribution substation, station communication net, terminal; Distribution substation is connected with distribution network master station system by described fiber optic Ethernet, and terminal is connected with distribution substation by station communication net; Distribution network master station, distribution substation, terminal are all supported IEEE1588 technology and tdma communication technology.
As shown in Figure 2, in distribution substation, terminal representative network framework comprises the station end of supporting IEEE1588 and TDMA and the terminal of supporting IEEE1588 and TDMA, between them, communicates by RJ45/FIRER.
As shown in Figure 3, a kind of based on IEEE1588 precision clock and the autonomous network-building method of TDMA technology, comprise the following steps:
It is frame frequency that a1, the each terminal that needs access network obtain PTP synchronised clock by IEEE1588 agreement;
B1, according to TDMA technology according to networking frame frequency time slot principle divide time slot;
C1, obtain message time slot sequence number according to Termination ID;
D1, judge that whether current time slots is the message time slot obtaining;
E1, automatically report request networking information;
Whether f1, waiting station end agree to networking.
As shown in Figure 4, a kind of based on IEEE1588 precision clock and TDMA technical information exchange method, comprise the following steps:
A2: the successful terminal of networking obtains message time slot sequence number according to its ID;
B2: judge whether current time slots is the message time slot obtaining;
C2: send the number of timeslots information that takies of estimating;
D2: judge this terminal timeslot number whether acquisition station end distributes;
E2: judge whether current time slots is the time slot that station end distributes;
F2: transmission information.
Above-described embodiment; technical scheme of the present invention is further illustrated; institute is understood that; the foregoing is only the specific embodiment of the present invention; do not limit protection scope of the present invention; all in the spirit and principles in the present invention and so on, any amendment of making, be equal within alternative, improvement etc. all should be included in protection scope of the present invention.
Claims (7)
1. the autonomous group-network construction of power automation terminal, is characterized in that, comprises distribution network master station system, fiber optic Ethernet, distribution substation, station communication net, terminal; Described distribution substation is connected with described distribution network master station system by described fiber optic Ethernet, and described terminal is connected with described distribution substation by described station communication net; Described distribution network master station, distribution substation, terminal are all supported IEEE1588 technology and tdma communication technology.
2. the autonomous network-building method of power automation terminal, is characterized in that, comprises the following steps:
It is frame frequency that a1, the each terminal that needs access network obtain PTP synchronised clock by IEEE1588 agreement;
B1, according to TDMA technology according to networking frame frequency time slot principle divide time slot;
C1, obtain message time slot sequence number according to Termination ID;
D1, judge that whether current time slots is the message time slot obtaining;
E1, automatically report request networking information;
Whether f1, waiting station end agree to networking.
3. the autonomous network-building method of power automation terminal according to claim 2, it is characterized in that, described frame frequency is divided into 10 standard time slots, the first standard time slot is autonomous networking standard time slot, remaining time slot is divided into burst information time slot section and routine information time slot section by function as required, between adjacent standard time slot, buffer strip width is 20% of standard time slot, and each time slot of described standard time slot is divided into 10 message time slots.
4. the autonomous network-building method of power automation terminal according to claim 2, is characterized in that, described Termination ID is the unique effective identification code of this terminal in group network system, can from the coding that dispatches from the factory of terminal, obtain, or shine upon according to IP address.
5. the autonomous network-building method of power automation terminal according to claim 2, is characterized in that, described message timeslot number is to adopt ID to do the random number that seed generates, and this random number has been carried out to circumscription.
6. a power automation end message exchange method, is characterized in that, comprises the following steps:
A2: the successful terminal of networking obtains message time slot sequence number according to its ID;
B2: judge whether current time slots is the message time slot obtaining;
C2: send the number of timeslots information that takies of estimating;
D2: judge this terminal timeslot number whether acquisition station end distributes;
E2: judge whether current time slots is the time slot that station end distributes;
F2: transmission information.
7. power automation end message exchange method according to claim 6, is characterized in that, the information of described transmission is divided into normality information and burst information.
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| CN201410118617.3A CN103915899A (en) | 2014-03-27 | 2014-03-27 | Autonomous networking structure and method for electric power automatic terminals |
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| CN201410118617.3A CN103915899A (en) | 2014-03-27 | 2014-03-27 | Autonomous networking structure and method for electric power automatic terminals |
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| CN107896155A (en) * | 2017-12-12 | 2018-04-10 | 宁波三星医疗电气股份有限公司 | A kind of intelligent terminal interactive system based on Ethernet |
| CN111542122A (en) * | 2020-05-26 | 2020-08-14 | 燕山大学 | Resource allocation method for field-level industrial wireless real-time communication |
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