CN106484363A - A kind of ammeter meter is used for the method for producing random number - Google Patents
A kind of ammeter meter is used for the method for producing random number Download PDFInfo
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- CN106484363A CN106484363A CN201610881741.4A CN201610881741A CN106484363A CN 106484363 A CN106484363 A CN 106484363A CN 201610881741 A CN201610881741 A CN 201610881741A CN 106484363 A CN106484363 A CN 106484363A
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- random number
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
- G06F7/58—Random or pseudo-random number generators
- G06F7/588—Random number generators, i.e. based on natural stochastic processes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
- G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
- G01R22/061—Details of electronic electricity meters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
- G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
- G01R22/10—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods using digital techniques
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Theoretical Computer Science (AREA)
- Computational Mathematics (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Pure & Applied Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Storage Device Security (AREA)
Abstract
The invention discloses a kind of ammeter meter is used for the method for producing random number, using ammeter ADC gathered data, the gathered data in cumulative integer cycle, take last position of accumulated value, for randomly generating firmly data, the random number of 1 t can be produced every time, the random number of m position is such as wanted, is then acquired m cycle.Compared with prior art, the present invention is without extra hardware and in the case of not lifting cost, realized using ADC sampled data hard random, improve security, using the technical scheme in the present invention, attacker cannot find reasonably and reduce attack interval, and therefore the present invention has high security.
Description
Technical field
The present invention relates to a kind of encryption method, more particularly to a kind of ammeter meter is used for the method for producing random number.
Background technology
If communication adopts plaintext transmission, there is the risk that spied upon, distort, for the safety that transmits, communication needs to add
Close, and encrypting then involves the generation of key, and generating key needs random number generation mechanism.Now typically produced using two methods
Raw random number：The first, use time is generated with pseudo-random algorithm as random seed；Second, using hardware random chip
Or the chip comprising hardware chance mechanism.
Use time is breakneck behavior as pseudo-random seed using pseudo-random algorithm, and the attack of attacker is permissible
Narrow down to the interval of very little.Truly random can be produced using hardware chance mechanism, but if simply with CPU's
Behavior attacks interval possibility to produce hardware and similarly have at random to be reduced by attacker.And hard random possibility truly
The raising of hardware cost can be brought.
Content of the invention
The present invention is directed to deficiency of the prior art, there is provided a kind of ammeter meter is used for the method for producing random number,
In the case of not increasing hardware cost, the security of communication is improved.
In order to solve above-mentioned technical problem, the present invention is addressed by following technical proposals：A kind of ammeter meter is used for
The method for producing random number, including,
Step one, electric meter system are initialized, and opening ADC carries out ammeter data collection, is input into the digit of the random number for needing
For m；
Step 2, detection voltage frequency are f, then the cycle is 1/f；
Step 3, the overtone order for being input into analytical sampling voltage are n time, it is determined that 2*n point of each cycle data sampling；
Step 4, the every continuous 2*n data of generation are the sampling of cycle data, are then entered by Fourier transform mode
Row voltage effective value, current effective value, active power, reactive power, harmonic wave etc. are calculated；
Step 5,2*n data of each cycle, be added together, take last position, be random number, now generate one with
Machine number；
Step 6, repeats m step 5, produces altogether m position random number；
Step 7, completes the acquisition of m position random number, quits work, ammeter proceed ammeter data collection, repeat step two to
Step 4.
The present invention without extra hardware and in the case of not lifting cost, realized using ADC sampled data hard
At random, security is improved, using the technical scheme in the present invention, attacker cannot find reasonably and reduce attack interval, therefore
The present invention has high security.
Description of the drawings
Fig. 1 is step schematic diagram of the present invention.
Specific embodiment
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings：As shown in Figure 1, Yi Zhong electricity
Table meter is used for the method for producing random number, including,
Step one, electric meter system are initialized, and opening ADC carries out ammeter data collection, is input into the digit of the random number for needing
For m；
Step 2, detection voltage frequency are f, then the cycle is 1/f；
Step 3, the overtone order for being input into analytical sampling voltage are n time, it is determined that 2*n point of each cycle data sampling, then
ADC is 2*n*f according to sample rate（Sampling interval is 1/ (2*n*f)）Equal interval sampling goes down；
Step 4, the every continuous 2*n data of generation are the sampling of cycle data, are then entered by Fourier transform mode
Row voltage effective value, current effective value, active power, reactive power, harmonic wave etc. are calculated；
Step 5,2*n data of each cycle, be added together, take last position, be random number, now generate one with
Machine number；
Step 6, repeats m step 5, produces altogether m position random number；
Step 7, completes the acquisition of m position random number, quits work, ammeter proceed ammeter data collection, repeat step two to
Step 4.
This device utilizes ammeter ADC gathered data, adds up the integer cycle（1 cycle is typically taken）Collection number
According to taking last position of accumulated value, be to randomly generate firmly data, the random number of 1 can be produced every time, such as want the random of m position
Number, then be acquired m cycle.
Using the ADC sampling module gathered data of ammeter, add up the integer cycle（1 cycle is typically taken）Collection number
According to taking last position of accumulated value, be to randomly generate firmly data.In this way, 1 random data can be produced every time.
Random data is produced using the method, in the case of added up in power frequency 50Hz and using 1 cycle, can produce within one second
Raw 50 random data.Under experimental result, the method produces 0,1 data being evenly distributed, and distribution is good, meets safe wanting
Ask.
Can be acquired using non-integer, it is also possible to produce random data, but with respect to number of cycles, immediately
Effect can reduce, and security is relatively low with respect to number of cycles.
The key point of the present invention and protection point are the voltage data using ADC sampling integer cycle, tire out and take last
Position produces the random number of a position.So as to, in the case of hardware cost is not increased, the ammeter that is sampled based on ADC can have one kind
The method of the generation random number of safety.
Protection scope of the present invention includes but is not limited to embodiment of above, and protection scope of the present invention is with claims
It is defined, any replacement is readily apparent that by those skilled in the art that this technology is made, deformation, improvement each fall within the present invention's
Protection domain.
The present invention without extra hardware and in the case of not lifting cost, realized using ADC sampled data hard
At random, security is improved, using the technical scheme in the present invention, attacker cannot find reasonably and reduce attack interval, therefore
The present invention has high security.
Claims (1)
1. a kind of ammeter meter is used for the method for producing random number, it is characterised in that：Including,
Step one, electric meter system are initialized, and opening ADC carries out ammeter data collection, is input into the digit of the random number for needing
For m；
Step 2, detection voltage frequency are f, then the cycle is 1/f；
Step 3, the overtone order for being input into analytical sampling voltage are n time, it is determined that 2*n point of each cycle data sampling；
Step 4, the every continuous 2*n data of generation are the sampling of cycle data, are then entered by Fourier transform mode
Row voltage effective value, current effective value, active power, reactive power, harmonic wave etc. are calculated；
Step 5,2*n data of each cycle, be added together, take last position, be random number, now generate one with
Machine number；
Step 6, repeats m step 5, produces altogether m position random number；
Step 7, completes the acquisition of m position random number, quits work, ammeter proceed ammeter data collection, repeat step two to
Step 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610881741.4A CN106484363A (en) | 2016-10-10 | 2016-10-10 | A kind of ammeter meter is used for the method for producing random number |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610881741.4A CN106484363A (en) | 2016-10-10 | 2016-10-10 | A kind of ammeter meter is used for the method for producing random number |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106484363A true CN106484363A (en) | 2017-03-08 |
Family
ID=58269189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610881741.4A Pending CN106484363A (en) | 2016-10-10 | 2016-10-10 | A kind of ammeter meter is used for the method for producing random number |
Country Status (1)
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| CN (1) | CN106484363A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115277646A (en) * | 2022-09-29 | 2022-11-01 | 河北振创电子科技有限公司 | Method and device for automatically setting MAC address of Ethernet data acquisition instrument |
Citations (5)
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|---|---|---|---|---|
| WO2010031630A1 (en) * | 2008-09-22 | 2010-03-25 | Siemens Aktiengesellschaft | Apparatus and method for generating a random bit sequence |
| CN102998523A (en) * | 2012-12-25 | 2013-03-27 | 上海贝岭股份有限公司 | Harmonic power calculating method for electric energy measuring |
| TW201405419A (en) * | 2012-07-19 | 2014-02-01 | Nuvoton Technology Corp | Circuit and method for generating random number |
| CN103617020A (en) * | 2013-12-23 | 2014-03-05 | 乐得科技有限公司 | Method and equipment for generating random number in application program |
| CN105067882A (en) * | 2015-07-24 | 2015-11-18 | 许继电气股份有限公司 | Power amplitude measuring method |
-
2016
- 2016-10-10 CN CN201610881741.4A patent/CN106484363A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2010031630A1 (en) * | 2008-09-22 | 2010-03-25 | Siemens Aktiengesellschaft | Apparatus and method for generating a random bit sequence |
| TW201405419A (en) * | 2012-07-19 | 2014-02-01 | Nuvoton Technology Corp | Circuit and method for generating random number |
| CN102998523A (en) * | 2012-12-25 | 2013-03-27 | 上海贝岭股份有限公司 | Harmonic power calculating method for electric energy measuring |
| CN103617020A (en) * | 2013-12-23 | 2014-03-05 | 乐得科技有限公司 | Method and equipment for generating random number in application program |
| CN105067882A (en) * | 2015-07-24 | 2015-11-18 | 许继电气股份有限公司 | Power amplitude measuring method |
Non-Patent Citations (2)
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| 张建忠: "基于宽带混沌激光熵源实现高速真随机数的产生", 《中国博士学位论文全文数据库 信息科技辑》 * |
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| CN115277646A (en) * | 2022-09-29 | 2022-11-01 | 河北振创电子科技有限公司 | Method and device for automatically setting MAC address of Ethernet data acquisition instrument |
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Application publication date: 20170308 |