CN106877506A - A kind of host-host protocol compression method of the out-of-limit Monitoring Data of distribution network voltage - Google Patents
A kind of host-host protocol compression method of the out-of-limit Monitoring Data of distribution network voltage Download PDFInfo
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- CN106877506A CN106877506A CN201710178648.1A CN201710178648A CN106877506A CN 106877506 A CN106877506 A CN 106877506A CN 201710178648 A CN201710178648 A CN 201710178648A CN 106877506 A CN106877506 A CN 106877506A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 27
- 238000007906 compression Methods 0.000 title claims abstract description 18
- 230000006835 compression Effects 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 13
- 229910002056 binary alloy Inorganic materials 0.000 claims abstract description 5
- 239000008186 active pharmaceutical agent Substances 0.000 claims abstract description 3
- 241001269238 Data Species 0.000 claims description 8
- 238000009825 accumulation Methods 0.000 claims description 6
- 238000005070 sampling Methods 0.000 claims description 4
- 230000002123 temporal effect Effects 0.000 claims description 3
- 230000001186 cumulative effect Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000004891 communication Methods 0.000 abstract description 3
- 238000013144 data compression Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
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- H02J13/0006—
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
Abstract
The invention belongs to power distribution network monitoring field, there is provided a kind of host-host protocol compression method of the out-of-limit Monitoring Data of distribution network voltage, the high efficiency of transmission of the out-of-limit Monitoring Data of distribution network voltage is applied to, the method is comprised the following steps：（1）According to the out-of-limit data precision requirement of distribution network voltage, on the basis of rated voltage, precentagewise is encoded at equal intervals to distribution network voltage Monitoring Data, and interval steps are 1%；（2）It is " time section voltage out-of-limit points byte " to define DS, marks time section voltage out-of-limit to count with 3 hytes of 6 15 high of every 2 bytes of binary system byte DS1 ~ DS6；Etc..The host-host protocol compression method of the out-of-limit Monitoring Data of distribution network voltage of the present invention, compression effectiveness substantially, can substantially reduce the burden of post and telecommunication tariff and communication network.
Description
Technical field
The invention belongs to power distribution network monitoring field, and in particular to a kind of host-host protocol of the out-of-limit Monitoring Data of distribution network voltage
Compression method, is applied to the high efficiency of transmission of the out-of-limit Monitoring Data of distribution network voltage.
Background technology
The out-of-limit safety and economic operation for directly affecting all kinds of electrical equipments of distribution network voltage, thus it is out-of-limit to distribution network voltage
It is monitored very necessary.Conventional voltage out-of-limit Monitoring Data is using equal interval sampling and uses double-byte representation magnitude of voltage, and
Because power distribution network coverage rate is extremely wide, it is necessary to the monitoring points of collection are numerous, it is necessary to the data volume of transmission is big, cause to take compared with
The big network bandwidth and high post and telecommunication tariff.
The content of the invention
The purpose of the present invention is exactly to overcome above-mentioned weak point of the prior art, there is provided a kind of distribution network voltage is got over
The host-host protocol compression method of Monitoring Data is limited, compression effectiveness substantially, can substantially reduce the negative of post and telecommunication tariff and communication network
Load.
The purpose of the present invention is achieved through the following technical solutions.
A kind of host-host protocol compression method of the out-of-limit Monitoring Data of distribution network voltage, comprises the following steps：
（1）Voltage out-of-limit data encoding
According to the out-of-limit data precision requirement of distribution network voltage, on the basis of rated voltage, precentagewise is monitored to distribution network voltage
Data are encoded at equal intervals, and interval steps are 1%；It is " voltage percentage Value Data " to define DP, it is considered to which distribution network voltage is out-of-limit
The absolute value of scope is not more than 30%, totally 61 percentage values, uses 1 low 6 of binary system byte with signed binary number
Represent, i.e. d7d6111111~d7d6100001 represent -31% to -1%, d respectively7d6000001~d7d6011111 respectively represent+1% to
+ 31%, d7d6000000 and d7d6100000 two codings represent 0%；
The distribution network voltage out-of-limit Monitoring Data sampling period is 1min, per hour 60 Monitoring Datas, by 60 point datas temporally
Order is divided into 15 time section S1 ~ S15, and each time section is containing 4 voltage percentage Value Datas and is designated as SX in chronological order
（DP00）, SX (DP01), SX (DP10), SX (DP11), only record out-of-limit voltage data, non-out-of-limit data are rejected, effectively to subtract
Data are transmitted less, so, if corresponding time point voltage is not out-of-limit, the voltage percentage Value Data will be occurred without；Definition electricity
" the voltage percentage Value Data " that pressure gets over point of accumulation is " voltage out-of-limit percentage Value Data ", the voltage out-of-limit point of each time section when
Between sequentially with two d high of " voltage out-of-limit percentage Value Data "7d6Mark；For example, the 2nd voltage out-of-limit of time section 5, then
S5 (DP01)=01xxxxxx, by that analogy；
So far the voltage out-of-limit data encoding of all more point of accumulation in power distribution network is obtained；
（2）Time section voltage out-of-limit points byte code
It is " time section voltage out-of-limit points byte " to define DS, with 6 height of every 2 bytes of binary system byte DS1 ~ DS6
The 3 hytes mark time section voltage out-of-limit points of 15, i.e. DS1DS2（d15d14d13d12d11d10d9d8d7d6d5d4d3d2d1d0）
D15d14d13Remember voltage out-of-limit points, the d of S1 time sections12d11d10Remember voltage out-of-limit points, the d of S2 time sections9d8d7Note
The voltage out-of-limit points of S3 time sections, d6d5d4Remember voltage out-of-limit points, the d of S4 time sections3d2d1Note S5 time sections
Voltage out-of-limit points, d0It is 0 that position is permanent, and DS3DS4, DS5DS6 are by that analogy；
（3）1 frame per hour is carried out using following data frame to transmit：7EH E7H 7EH X1 X2 X3 X4 X5 X6 X7 X8
DS1 DS2 DS3 DS4 DS5 DS6 (voltage out-of-limit percentage value data field) XOR SUM 0DH, wherein, 7EH E7H 7EH are
Frame head, 3 bytes；X1 is receiving terminal address, 1 byte；X2 X3 are transmitting terminal address, 2 bytes；X4 X5 X6 X7 are
Temporal information, 4 bytes, using 8421 binary-coded decimals represent respectively year, month, day, when, be only with last two decimal data tables
Show, such as：During 28 days 14 October in 2017,17H 10H 28H 14H are expressed as；X8 is data length, 1 byte；DS1 DS2
DS3 DS4 DS5 DS6 implication such as steps（2）Described in, 6 bytes；Voltage out-of-limit percentage value data field only records more point of accumulation
" voltage out-of-limit percentage Value Data ", if voltage out-of-limit points are N, the common N number of word in voltage out-of-limit percentage value data field in 1 hour
Section；XOR be from X1 to XOR before all bytes XOR value, 1 byte；SUM be from X1 to XOR before all bytes cumulative and
Low byte, 1 byte；ODH is postamble, 1 byte.
Compression effectiveness of the invention is described below in detail.
The data frame that the present invention is used：7EH E7H 7EH X1 X2 X3 X4 X5 X6 X7 X8 DS1 DS2 DS3
DS4 DS5 DS6 (voltage out-of-limit percentage value data field) XOR SUM 0DH, X8 are data length byte, remember its numerical value for M,
Then data frame has 14+M bytes per hour.
（A）Before uncompressed, magnitude of voltage uses double-byte representation, and by sampling instant journal each point magnitude of voltage, M=2*
60=120 bytes, then data frame has 14+120=134 bytes per hour；
（B）After compression, if voltage out-of-limit points are N, the common N number of byte in voltage out-of-limit percentage value data field, M=6+N in 1 hour
Byte, then data frame has 14+6+N bytes, data compression ratio per hour；
Corresponding data compression ratio T is as shown in table 1 for different voltage out-of-limit points Ns.Result of calculation shows that voltage out-of-limit points N is got over
Few, data compression ratio T is smaller, and compression effectiveness is better.
The corresponding data compression ratio T of the different voltage out-of-limit point N of table 1
To sum up, a kind of host-host protocol compression method of the out-of-limit Monitoring Data of distribution network voltage of the invention, compression effectiveness substantially, can
Substantially reduce the burden of post and telecommunication tariff and communication network.
Specific embodiment
The present invention is described in further detail with specific example below.
Assuming that the out-of-limit monitoring of distribution network voltage is carried out to certain 380V power distribution network in 1 day 12 March in 2017,60 points of monitoring numbers
According to as shown in table 2.
Table 2 certain out-of-limit Monitoring Data of 380V distribution network voltages
According to the rules, 380V distribution network voltages deviation allowed band is ± 7%, and above-mentioned 60 Monitoring Datas have 18 voltages and get over
Limit data encoding is respectively：
S1 (DP01)=01101010, S2 (DP01)=01101000, S2 (DP10)=10101000,
S4 (DP11)=11101001, S5 (DP00)=00101001, S5 (DP01)=01101010,
S6 (DP01)=01101010, S7 (DP01)=01101000, S7 (DP10)=10101000,
S9 (DP11)=11101001, S10 (DP00)=00101001, S10 (DP01)=01101010,
S11 (DP01)=01001010, S12 (DP01)=01001000, S12 (DP10)=10001000,
S14 (DP11)=11001001, S15 (DP00)=00001001, S15 (DP01)=01001010；
And obtain time section voltage out-of-limit points byte code：
DS1DS2=0010100000010100,
DS3DS4=0010100000010100,
DS5DS6=0010100000010100；
The numerical value M=6+18=24 of data length byte；Assuming that receiving terminal address is 01H, transmitting terminal address is 00H 01H, then go up
60 Monitoring Datas are stated to be expressed as with the form of data frame：7EH E7H 7EH 01H 00H 01H 17H 03H 01H 12H
18H 28H 14H 28H 14H 28H 14H 6AH 68H A8H E9H 29H 6AH 6AH 68H A8H E9H 29H 6AH
4AH 48H 88H C9H 09H 4AH 23H 1DH 0DH。
In sum, the host-host protocol compression method of the out-of-limit Monitoring Data of a kind of distribution network voltage of the invention, in this implementation
In example, transmitting data frame totally 38 byte per hour, compression ratio is 28.4%.
Above example is used for illustrative purposes only, rather than limitation of the present invention, about the technology people of technical field
Member, the various conversion made without departing from the spirit and scope of the present invention or modification also should be regarded as in guarantor of the invention
Within the scope of shield, limited by each claim.
Claims (2)
1. the host-host protocol compression method of the out-of-limit Monitoring Data of a kind of distribution network voltage, it is characterised in that the method includes following step
Suddenly：
（1）Voltage out-of-limit data encoding
According to the out-of-limit data precision requirement of distribution network voltage, on the basis of rated voltage, precentagewise is monitored to distribution network voltage
Data are encoded at equal intervals, and interval steps are 1%；It is " voltage percentage Value Data " to define DP, using 1 binary system byte
Low 6 with signed binary number representation, i.e. d7d6111111~d7d6100001 represent -31% to -1%, d respectively7d6000001
~d7d6011111 represents+1% to+31%, d respectively7d6000000 and d7d6100000 two codings represent 0%；
The distribution network voltage out-of-limit Monitoring Data sampling period is 1min, per hour 60 Monitoring Datas, by 60 point datas temporally
Order is divided into 15 time section S1 ~ S15, and each time section is containing 4 voltage percentage Value Datas and is designated as SX in chronological order
（DP00）, SX (DP01), SX (DP10), SX (DP11), only record out-of-limit voltage data, reject non-out-of-limit data；Define voltage
" the voltage percentage Value Data " of more point of accumulation is " voltage out-of-limit percentage Value Data ", the time of the voltage out-of-limit point of each time section
Order two d high of " voltage out-of-limit percentage Value Data "7d6Mark；
So far the voltage out-of-limit data encoding of all more point of accumulation in power distribution network is obtained；
（2）Time section voltage out-of-limit points byte code
It is " time section voltage out-of-limit points byte " to define DS, with 6 height of every 2 bytes of binary system byte DS1 ~ DS6
The 3 hytes mark time section voltage out-of-limit points of 15, i.e. DS1DS2（d15d14d13d12d11d10d9d8d7d6d5d4d3d2d1d0）
D15d14d13Remember voltage out-of-limit points, the d of S1 time sections12d11d10Remember voltage out-of-limit points, the d of S2 time sections9d8d7Note
The voltage out-of-limit points of S3 time sections, d6d5d4Remember voltage out-of-limit points, the d of S4 time sections3d2d1Note S5 time sections
Voltage out-of-limit points, d0It is 0 that position is permanent, and DS3DS4, DS5DS6 are by that analogy；
（3）1 frame per hour is carried out using following data frame to transmit：7EH E7H 7EH X1 X2 X3 X4 X5 X6 X7 X8
DS1 DS2 DS3 DS4 DS5 DS6 (voltage out-of-limit percentage value data field) XOR SUM 0DH, wherein, 7EH E7H 7EH are
Frame head, 3 bytes；X1 is receiving terminal address, 1 byte；X2 X3 are transmitting terminal address, 2 bytes；X4 X5 X6 X7 are
Temporal information, 4 bytes；X8 is data length, 1 byte；DS1 DS2 DS3 DS4 DS5 DS6 implication such as steps（2）In
It is described, 6 bytes；Voltage out-of-limit percentage value data field only records " the voltage out-of-limit percentage Value Data " of more point of accumulation, if in 1 hour
Voltage out-of-limit points are N, then the common N number of byte in voltage out-of-limit percentage value data field；XOR be from X1 to XOR before all bytes it is different
Or value, 1 byte；SUM be from X1 to XOR before all bytes cumulative sum low byte, 1 byte；ODH is postamble, 1 word
Section.
2. the host-host protocol compression method of the out-of-limit Monitoring Data of distribution network voltage according to claim 1, it is characterised in that：
X4 X5 X6 X7 be temporal information, 4 bytes, using 8421 binary-coded decimals represent respectively year, month, day, when, be only with end two
Decimal data is represented.
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| CN111835759A (en) * | 2020-07-10 | 2020-10-27 | 深圳市源泉科技开发有限公司 | Network flow control method based on data compression |
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| US20020042684A1 (en) * | 2000-09-25 | 2002-04-11 | Shincovich John T. | Point of use digital electric energy apparatus with uninterruptible telephone communication |
| CN102427369A (en) * | 2011-10-19 | 2012-04-25 | 广东电网公司电力科学研究院 | Real-time holographic lossless compression method for productive time sequence data |
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| CN111835759A (en) * | 2020-07-10 | 2020-10-27 | 深圳市源泉科技开发有限公司 | Network flow control method based on data compression |
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Inventor after: Liu Chunfang Inventor after: Cao Naiwen Inventor after: Liang Tangjie Inventor after: Ye Weijia Inventor after: Xiong Jiali Inventor after: Li Yan Inventor after: Wang Shaorong Inventor after: Wang Tianzhi Inventor after: Peng Yinding Inventor after: Nie Jingyu Inventor before: Liu Chunfang Inventor before: Peng Yinding Inventor before: Nie Jingyu Inventor before: Cao Naiwen Inventor before: Ye Weijia Inventor before: Xiong Jiali Inventor before: Li Yan Inventor before: Wang Shaorong Inventor before: Zhu Minjie Inventor before: Liang Tangjie Inventor before: Zhao Hong Inventor before: Wang Tianzhi |
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