CN101795304A - Method for boosting search of IPv6 address space in digital transformer substation - Google Patents
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Abstract
The invention belongs to the field of data communication in a transformer substation, in particular to a method for boosting search of an IPv6 address space by using the golden ratio in a digital transformer substation of the power industry. The invention solves the problem of the quick search of the IPv6 address space, and can boost the search of the IPv6 address space, thereby shortening the time delay of IPv6 data packets.
Description
Technical field
The invention belongs to data communication field in the transformer station, be specifically related to a kind of interior method of digital transformer substation of power industry with the golden section boosting search of IPv 6 address space.
Background technology
The IP agreement is the core protocol of the Internet.Present widely used IPv4 agreement is in the design of phase at the end of the seventies in last century, and no matter from computer development itself or from internet scale and network transmission speed, IPv4 has been difficult to adapt to requirement.IPv4 address total amount is 2 32 powers promptly 4,294,967,296, the usefulness but 32 IPv4 address has been nowhere near, and the expert estimates that global ip v4 address resource will exhaust in 2012 years.
Adopting length is the IPv6 agreement of 128 IP addresses, can solve the difficult problem of IPv4 address shortage, and at aspects such as address capability, fail safe, network management, mobility and service quality tangible improvement be arranged.
But some other problems will be caused simultaneously.For example, with the search problem that the limited address space searching algorithm of IPv4 can't be avoided IPv6 magnanimity address space, 128 IPv6 address will cause the bigger time-delay of IPv6 packet.
The networked IP technology of a large amount of employings in the electrical secondary system digitized process in the transformer station; the time-delay of IPv6 packet and fast address space search will directly influence the operate as normal of digital transformer substation, influence basic function and senior application functions such as the support real-time power network is controlled automatically, intelligence is regulated, on-line analysis decision-making, collaborative interaction such as information gathering, measurement, control, protection, metering and monitoring.
In future, after the transition of electric power data communication network was IPv6, the electric power terminal in the digital transformer substation adopted the IPv6 agreement.Adopting length is the IPv6 agreement of 128 IP addresses, can solve the difficult problem of IPv4 address shortage, but need to be resolved hurrily facing some new problems simultaneously.For example, with IPv4 limited address space searching algorithm can't fine solution IPv6 magnanimity address space search problem, 128 IPv6 address will cause the bigger time-delay of IPv6 packet.These problems will influence the basic function and the senior application functions such as the support real-time power network is controlled automatically, intelligence is regulated, on-line analysis decision-making, collaborative interaction such as information gathering, measurement, control, protection, metering and monitoring of digital transformer substation if do not solve.
Summary of the invention
The objective of the invention is to solve the quick search problem of IPv6 address space, and reduce the time-delay of IPv6 packet.
The present invention proposes a kind of method of boosting search of IPv 6 address space in digital transformer substation, may further comprise the steps:
1.1) one section IPv6 address realm: A1 to A2 of input, calculate the golden section point A3 of this section IPv6 address;
1.2) judge the IPv6 address that will search for whether at address realm (1+A3) between the A2.
1.3) if the address of being searched be at (1+A3) between the A2, then calculate the golden section point A4 of this section IPv6 address;
1.4) judge the IPv6 address that will search for whether at address realm (1+A4) between the A2;
1.5) if the address of being searched be at address realm (1+A4) between the A2, then at address realm (1+A4) to searching the IPv6 address that will search between the A2.
1.6) if not, the address that search for be not at address realm (1+A4) between the A2, then at address realm (1+A3) to searching the IPv6 address that will search between the A4;
1.7) if not, the golden section point A5 between the A1 to A3 of IPv6 address is then calculated in the address of being searched not between address realm A1 to A3;
1.8) judge the IPv6 address that will search for whether at address realm (1+A5) between the A3;
1.9) if the address that will search for be at address realm (1+A5) between the A3, then at address realm (1+A5) to searching the IPv6 address that will search between the A3;
1.10) if not, the address be not at address realm (1+A5) between the A3, then calculate the golden section point A6 between the A1 to A5 of IPv6 address;
1.11) judge the IPv6 address that will search for whether at address realm (1+A6) between the A5;
1.12) if the address that will search for be at address realm (1+A6) between the A5, then at address realm (1+A6) to searching the IPv6 address that will search between the A5;
1.13) if not, the address that search for not at address realm (1+A6) between the A5, then between address realm A1 to A6, search the IPv6 address that will search for.
Wherein, described step 1.1), 1.3), 1.7) and 1.10) in adopt golden section to search, according to one section IPv6 address realm: A1 to A2, calculated address golden section point A3, A4, A5, A6, its step is as follows:
2.1) A1 to the A2 detailed process of calculating golden section point A3 is that definition intermediate variable C21 and C31 are as follows earlier: definition C
21=(A
2-A
1) decimal number changed after the difference for the binary number A2 of electric power terminal IPv6 address and A1, definition C
31=(A
3-A
1) decimal number changed after the difference for the binary number A3 of electric power terminal IPv6 address and A1, then
Calculating the accurate analytical expression of golden section point A3 is: A
3=A
1+ B
21, wherein
For decimal number C21 with
Binary number of changing behind the product and the integer part of getting binary number;
2.2) detailed process of calculating golden section point A4 is that definition intermediate variable C23 and C43 are as follows earlier: definition C
23=(A
2-A
3) decimal number changed after the difference for the binary number A2 of electric power terminal IPv6 address and A3, definition C
43=(A
4-A
3) decimal number changed after the difference for the binary number A4 of electric power terminal IPv6 address and A1, then
Calculating the accurate analytical expression of golden section point A4 is: A
4=A
3+ B
23, wherein
For decimal number C23 with
Binary number of changing behind the product and the integer part of getting binary number;
2.3) detailed process of calculating golden section point A5 is that definition intermediate variable C31 and C51 are as follows earlier: definition C
31=(A
3-A
1) decimal number changed after the difference for the binary number A3 of electric power terminal IPv6 address and A1, definition C
51=(A
5-A
1) decimal number changed after the difference for the binary number A5 of electric power terminal IPv6 address and A1, then
Calculating the accurate analytical expression of golden section point A5 is: A
5=A
1+ B
31, wherein
For decimal number C31 with
Binary number of changing behind the product and the integer part of getting binary number;
2.4) detailed process of calculating golden section point A6 is that definition intermediate variable C51 and C61 are as follows earlier: definition C
51=(A
5-A
1) decimal number changed after the difference for the binary number A5 of electric power terminal IPv6 address and A1, definition C
61=(A
6-A
1) decimal number changed after the difference for the binary number A6 of electric power terminal IPv6 address and A1, then
Calculating the accurate analytical expression of golden section point A6 is: A
6=A
1+ B
51, wherein
For decimal number C51 with
Binary number of changing behind the product and the integer part of getting binary number.
Wherein, comprise the process that golden section point A3, A4, A5, A6 are carried out verification, its step is as follows:
3.1) according to one section IPv6 address realm: A1 to A2, try to achieve A3, A4, A5, A6 by said process after, in order to guarantee the concrete correctness of implementing, carry out verification again, if wrong, then need to recomputate;
3.2) specifically checking procedure is as follows, calculates C21, C31, C41, C51, C61;
Definition C
21=(A
2-A
1) decimal number changed after the difference for the binary number A2 of electric power terminal IPv6 address and A1;
Definition C
31=(A
3-A
1) decimal number changed after the difference for the binary number A3 of electric power terminal IPv6 address and A1;
Definition C
41=(A
4-A
1) decimal number changed after the difference for the binary number A4 of electric power terminal IPv6 address and A1;
Definition C
51=(A
5-A
1) decimal number changed after the difference for the binary number A5 of electric power terminal IPv6 address and A1;
3.3) verification of golden section point A3, A4, A5, A6 closes and is:
Digital transformer substation IPv6 address A1, A2, A3, A4, A5, A6 see Fig. 1.
See Fig. 2 with the method for golden section boosting search of IPv 6 address space in the digital transformer substation.
The invention has the beneficial effects as follows:
IPv6 address space search average speed is accelerated greatly, and then can reduce the time-delay of IPv6 packet.
Description of drawings
The present invention is further described below in conjunction with accompanying drawing.
Fig. 1 is IPv6 address A1, A2, A3, A4, A5, the A6 coordinate diagram that the present invention relates to;
Fig. 2 is a block diagram of the present invention;
Fig. 3 is specific embodiments of the invention;
Fig. 4 is a specific implementation process of the present invention;
Fig. 5 is one of schematic diagram of the present invention;
Fig. 6 is two of a schematic diagram of the present invention.
Embodiment
Among Fig. 5, A1, A2, A3, A4, A5, A6 are digital transformer substation IPv6 address, also are the related golden section point of method of the present invention.
Import one section IPv6 address realm, for example between A1 to A2, use method of the present invention and calculate IPv6 address golden section point A3.Between A3 and A2, use method of the present invention and calculate IPv6 address golden section point A4.Between A1 and A3, use method of the present invention and calculate IPv6 address golden section point A5.Between A1 and A5, use method of the present invention and calculate IPv6 address golden section point A6.
The detailed process of calculating golden section point A3 is that definition intermediate variable C21 and C31 are as follows earlier.Definition C
21=(A
2-A
1) decimal number changed after the difference for the binary number A2 of electric power terminal IPv6 address and A1, definition C
31=(A
3-A
1) decimal number changed after the difference for the binary number A3 of electric power terminal IPv6 address and A1.Then
Calculating the accurate analytical expression of golden section point A3 is: A
3=A
1+ B
21, wherein
For decimal number C21 with
Binary number of changing behind the product and the integer part of getting binary number.
The detailed process of calculating golden section point A4 is that definition intermediate variable C23 and C43 are as follows earlier.Definition C
23=(A
2-A
3) decimal number changed after the difference for the binary number A2 of electric power terminal IPv6 address and A3, definition C
43=(A
4-A
3) decimal number changed after the difference for the binary number A4 of electric power terminal IPv6 address and A1.Then
Calculating the accurate analytical expression of golden section point A4 is: A
4=A
3+ B
23, wherein
For decimal number C23 with
Binary number of changing behind the product and the integer part of getting binary number.
The detailed process of calculating golden section point A5 is that definition intermediate variable C31 and C51 are as follows earlier.Definition C
31=(A
3-A
1) decimal number changed after the difference for the binary number A3 of electric power terminal IPv6 address and A1, definition C
51=(A
5-A
1) decimal number changed after the difference for the binary number A5 of electric power terminal IPv6 address and A1.Then
Calculating the accurate analytical expression of golden section point A5 is: A
5=A
1+ B
31, wherein
For decimal number C31 with
Binary number of changing behind the product and the integer part of getting binary number.
The detailed process of calculating golden section point A6 is that definition intermediate variable C51 and C61 are as follows earlier.Definition C
51=(A
5-A
1) decimal number changed after the difference for the binary number A5 of electric power terminal IPv6 address and A1, definition C
61=(A
6-A
1) decimal number changed after the difference for the binary number A6 of electric power terminal IPv6 address and A1.Then
Calculating the accurate analytical expression of golden section point A6 is: A
6=A
1+ B
51, wherein
For decimal number C51 with
Binary number of changing behind the product and the integer part of getting binary number.
According to A1 to A2, try to achieve A3, A4, A5, A6 by said process after, in order to guarantee the concrete correctness of implementing, carry out verification again, if wrong, then need to recomputate.
Concrete checking procedure is as follows, calculates C21, C31, C41, C51, C61.Wherein, the above existing definition of C21, C31, C51 and C61, definition C
41=(A
4-A
1) decimal number changed after the difference for the binary number A4 of electric power terminal IPv6 address and A1.Then the pass between the address is:
The logical relation of this checking procedure is seen Fig. 6.After promptly address A1 to A2 being carried out the normalization processing, A1, A2, A3, A4, A5, A6 be corresponding normalization value (keeping 3 decimals) 0,0.236,0.382,0.618,0.854,1 respectively.
Specific implementation process of the present invention is seen Fig. 4.Promptly comprise five specific implementation process:
The electric power terminal that S4.1 sends the source end sends the IPv6 packet;
S4.2 resolves the destination address of this IPv6 bag;
S4.3 addressing of the present invention;
S4.4 finds the destination address of IPv6 bag fast and transmits this IPv6 bag;
S4.5 place electric power terminal is accepted the IPv6 packet.
The soluble concrete technical problem of the present invention is exemplified below.
Digital transformer substation has very strict requirement to the network communications technology and relevant device at aspects such as reliability, real-time, stability.In future, along with the construction of intelligent grid, the process layer of digital transformer substation (Process Level), wall (Bay Level) and station level (Station Level) inside and network each other thereof will adopt the IPv6 network.Use method boosting search of IPv 6 address space of the present invention, can guarantee the real-time that production control Da Qu communicates by letter with the various information of management information Da Qu.During concrete enforcement, method of the present invention can be built in the IP v6 Industrial Ethernet switch in the digital transformer substation IPv6 network and IP v6 industry router in, referring to Fig. 3.Also method of the present invention can be built in the IPv6 terminal in process layer, wall and the station level of digital transformer substation.
Invention has been described according to specific exemplary embodiment herein.It will be conspicuous carrying out suitable replacement to one skilled in the art or revise under not departing from the scope of the present invention.Exemplary embodiment only is illustrative, rather than to the restriction of scope of the present invention, scope of the present invention is by appended claim definition.
Claims (3)
1. the method for a boosting search of IPv 6 address space in digital transformer substation is characterized in that, may further comprise the steps:
1.1) one section IPv6 address realm: A1 to A2 of input, calculate the golden section point A3 of this section IPv6 address;
1.2) judge the IPv6 address that will search for whether at address realm (1+A3) between the A2;
1.3) if the address of being searched be at (1+A3) between the A2, then calculate the golden section point A4 of this section IPv6 address;
1.4) judge the IPv6 address that will search for whether at address realm (1+A4) between the A2;
1.5) if the address of being searched be at address realm (1+A4) between the A2, then at address realm (1+A4) to searching the IPv6 address that will search between the A2.
1.6) if not, the address that search for be not at address realm (1+A4) between the A2, then at address realm (1+A3) to searching the IPv6 address that will search between the A4;
1.7) if not, the golden section point A5 between the A1 to A3 of IPv6 address is then calculated in the address of being searched not between address realm A1 to A3;
1.8) judge the IPv6 address that will search for whether at address realm (1+A5) between the A3;
1.9) if the address that will search for be at address realm (1+A5) between the A3, then at address realm (1+A5) to searching the IPv6 address that will search between the A3;
1.10) if not, the address be not at address realm (1+A5) between the A3, then calculate the golden section point A6 between the A1 to A5 of IPv6 address;
1.11) judge the IPv6 address that will search for whether at address realm (1+A6) between the A5;
1.12) if the address that will search for be at address realm (1+A6) between the A5, then at address realm (1+A6) to searching the IPv6 address that will search between the A5;
1.13) if not, the address that search for not at address realm (1+A6) between the A5, then between address realm A1 to A6, search the IPv6 address that will search for.
2. the method for golden section address space search according to claim 1, it is characterized in that, described step 1.1), 1.3), 1.7) and 1.10) in adopt golden section to search, according to one section IPv6 address realm: A1 to A2, calculated address golden section point A3, A4, A5, A6, its step is as follows:
2.1) A1 to the A2 detailed process of calculating golden section point A3 is that definition intermediate variable C21 and C31 are as follows earlier: definition C
21=(A
2-A
1) decimal number changed after the difference for the binary number A2 of electric power terminal IPv6 address and A1, definition C
31=(A
3-A
1) decimal number changed after the difference for the binary number A3 of electric power terminal IPv6 address and A1, then
Calculating the accurate analytical expression of golden section point A3 is: A
3=A
1+ B
21, wherein
For decimal number C21 with
Binary number of changing behind the product and the integer part of getting binary number;
2.2) detailed process of calculating golden section point A4 is that definition intermediate variable C23 and C43 are as follows earlier: definition C
23=(A
2-A
3) decimal number changed after the difference for the binary number A2 of electric power terminal IPv6 address and A3, definition C
43=(A
4-A
3) decimal number changed after the difference for the binary number A4 of electric power terminal IPv6 address and A1, then
Calculating the accurate analytical expression of golden section point A4 is: A
4=A
3+ B
23, wherein
For decimal number C23 with
Binary number of changing behind the product and the integer part of getting binary number;
2.3) detailed process of calculating golden section point A5 is that definition intermediate variable C31 and C51 are as follows earlier: definition C
31=(A
3-A
1) decimal number changed after the difference for the binary number A3 of electric power terminal IPv6 address and A1, definition C
51=(A
5-A
1) decimal number changed after the difference for the binary number A5 of electric power terminal IPv6 address and A1, then
Calculating the accurate analytical expression of golden section point A5 is: A
5=A
1+ B
31, wherein
For decimal number C31 with
Binary number of changing behind the product and the integer part of getting binary number;
2.4) detailed process of calculating golden section point A6 is that definition intermediate variable C51 and C61 are as follows earlier: definition C
51=(A
5-A
1) decimal number changed after the difference for the binary number A5 of electric power terminal IPv6 address and A1, definition C
61=(A
6-A
1) decimal number changed after the difference for the binary number A6 of electric power terminal IPv6 address and A1, then
Calculating the accurate analytical expression of golden section point A6 is: A
6=A
1+ B
51, wherein
For decimal number C51 with
Binary number of changing behind the product and the integer part of getting binary number.
3. according to the method for the arbitrary described golden section address space search of claim 1-2,, it is characterized in that comprise the process that golden section point A3, A4, A5, A6 are carried out verification, its step is as follows:
3.1) according to one section IPv6 address realm: A1 to A2, try to achieve A3, A4, A5, A6 by said process after, in order to guarantee the concrete correctness of implementing, carry out verification again, if wrong, then need to recomputate;
3.2) specifically checking procedure is as follows, calculates C21, C31, C41, C51, C61;
Definition C
21=(A
2-A
1) decimal number changed after the difference for the binary number A2 of electric power terminal IPv6 address and A1;
Definition C
31=(A
3-A
1) decimal number changed after the difference for the binary number A3 of electric power terminal IPv6 address and A1;
Definition C
41=(A
4-A
1) decimal number changed after the difference for the binary number A4 of electric power terminal IPv6 address and A1;
Definition C
51=(A
5-A
1) decimal number changed after the difference for the binary number A5 of electric power terminal IPv6 address and A1;
3.3) verification of golden section point A3, A4, A5, A6 closes and is:
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0938218A2 (en) * | 1998-02-24 | 1999-08-25 | Canon Kabushiki Kaisha | Data communication system, data communication method, data communication apparatus and digital interface |
| CN101286935A (en) * | 2008-05-07 | 2008-10-15 | 中兴通讯股份有限公司 | Route searching method based on IP address scope |
| CN101515900A (en) * | 2009-04-13 | 2009-08-26 | 武汉烽火网络有限责任公司 | Binary IP route searching method based on prefix cover grade |
-
2010
- 2010-03-12 CN CN201010124925A patent/CN101795304A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0938218A2 (en) * | 1998-02-24 | 1999-08-25 | Canon Kabushiki Kaisha | Data communication system, data communication method, data communication apparatus and digital interface |
| CN101286935A (en) * | 2008-05-07 | 2008-10-15 | 中兴通讯股份有限公司 | Route searching method based on IP address scope |
| CN101515900A (en) * | 2009-04-13 | 2009-08-26 | 武汉烽火网络有限责任公司 | Binary IP route searching method based on prefix cover grade |
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