CN110247683A - A kind of information modulation method based on electric power direct current - Google Patents
A kind of information modulation method based on electric power direct current Download PDFInfo
- Publication number
- CN110247683A CN110247683A CN201910581080.7A CN201910581080A CN110247683A CN 110247683 A CN110247683 A CN 110247683A CN 201910581080 A CN201910581080 A CN 201910581080A CN 110247683 A CN110247683 A CN 110247683A
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- China
- Prior art keywords
- electric power
- direct current
- power direct
- information
- modulation method
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
- H04B3/542—Systems for transmission via power distribution lines the information being in digital form
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
- H04B3/548—Systems for transmission via power distribution lines the power on the line being DC
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0061—Error detection codes
Abstract
The invention discloses a kind of information modulation method based on electric power direct current, the information modulation method the following steps are included: S1, by the information coding, form binary first Serial No.；S2, first Serial No. is modulated to the electric power direct current.The features such as this modulator approach has information delay short, and scalability is good.
Description
Technical field
The present invention relates to a kind of information modulation methods based on electric power direct current, belong to field of power communication.
Background technique
Information is transmitted by power line, sets communication line with independent structure is not needed, it can be with effectively save construction cost
Advantage.
A kind of existing information modulation method based on electric power direct current is a level width table with electric power direct current
A complete information is levied, such information is bigger, and corresponding level width is bigger, thereby causes a problem in that 1, information
Modulation, demodulation and transmission time are long, and control sensitivity is low；2, the poor expandability of control system.
Summary of the invention
It is an object of the present invention to provide a kind of information modulation methods based on electric power direct current, to solve the prior art
Existing drawbacks described above.
In order to achieve the above object, The technical solution adopted by the invention is as follows:
A kind of information modulation method based on electric power direct current provided by the invention includes:
S1, by the information coding, form binary first Serial No.；And
S2, first Serial No. is modulated to the electric power direct current.
In some schemes, in the step S2, the modulation system of use are as follows: with the level class of the electric power direct current
Everybody of first Serial No., is sequentially modulated in the electric power direct current by type characterization 0 and 1 in this way.Wherein it is possible to
With the high level characterization 1 of electric power direct current, low level characterization 0,0, low level can also be characterized with the high level of electric power direct current
Characterization 1.
Also in some schemes, in the step S2, the modulation system of use are as follows: with the level of the electric power direct current
Everybody of first Serial No., is sequentially modulated in the electric power direct current by width characterization 0 and 1 in this way.
Preferably, the information includes metric address and metric data, in the step S1, the volume of use
Code method are as follows: first by the metric address multiplied by a constant, then be added with the metric data, obtain one
Metric coded number；Next the metric coded number is converted into binary coded number；Finally described two into
Parity check bit is added in the coded number of system, obtains first Serial No..
Compared with prior art, the present invention at least has the advantages that
Information delay is short, it is ensured that sensitivity of control system.
Scalability is good.First Serial No. increases by one, so that it may double capacity (quantity of controll plant).
Detailed description of the invention
Fig. 1 is that the present invention is based on the flow charts of the information modulation method of electric power direct current；
Fig. 2 is the schematic diagram of the first modulation system；
Fig. 3 is the schematic diagram of second of modulation system；
Fig. 4 is the schematic diagram of the third modulation system.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples.
Please refer to Fig. 1, the present invention is based on the information modulation method of electric power direct current the following steps are included:
Step S1, by the information coding, binary first Serial No. is formed.
In some applications, the information includes metric address and metric data.In the case, step S1
The coding method of middle use are as follows: first by the metric address multiplied by a constant, then with the metric data phase
Add, obtains a metric coded number；Next the metric coded number is converted into binary coded number；Finally
Parity check bit is added in binary coded number, obtains first Serial No..Increase the specific of parity check bit
Method are as follows: when in binary coded number 1 number is even number, parity check bit takes 0, when in binary coded number 1
When number is odd number, parity check bit takes 1.
For example, in a kind of dimmer application, the composition of the information are as follows: 1, hardware address, the range 0-20 of address, 0 table
Show broadcast address；2, the range of data: 0-100 is dimmed.The constant used is 101.
Assuming that: address 4, light modulation data are 85, then cataloged procedure is as follows: firstly, by operation 4*101+85=574,
Metric coded number 574 is obtained, next, binary coded number 0,010 0,011 1110 is converted by 574, then at this
0,010 0011 1110+0 of parity check bit is added in binary coded number 0,010 0,011 1110, obtains the first Serial No.
0100 0111 1100。
Assuming that: address 12, when light modulation value is 99, then cataloged procedure is as follows: firstly, passing through operation 12*101+99=
1311, metric coded number 1311 is obtained, next, it is converted into binary coded number 0,101 0,001 1111 by 1311,
Then 0,101 0001 1111+1 of parity check bit is added in binary coded number 0,101 0,001 1111, obtains the first number
Word sequence 1,010 0,011 1111.
Step S2, first Serial No. is modulated to the electric power direct current.
The first modulation system are as follows:, in this way will be described with the high level characterization 1 of electric power direct current, low level characterization 0
Everybody of first Serial No. is sequentially modulated in the electric power direct current.As illustrated in fig. 2, it is assumed that the first Serial No. 1 is
0100100110, the voltage of electric power direct current 2 is 200V, high level 200V, low level 180V, and level width is 100 millis
Second, according to the waveform of the modulated electric power direct current of the first modulation system as shown in label 3 in Fig. 2.
Second of modulation system are as follows:, in this way will be described with the high level characterization 0 of electric power direct current, low level characterization 1
Everybody of first Serial No. is sequentially modulated in the electric power direct current.As shown in Figure 3, it is assumed that the first Serial No. 1 is
0100100110, the voltage of electric power direct current 2 is 200V, high level 200V, low level 180V, and level width is 100 millis
Second, according to the waveform of the modulated electric power direct current of second of modulation system as shown in label 3 in Fig. 3.
The first above-mentioned modulation system and second of modulation system are all (i.e. high with the multilevel type of the electric power direct current
Level, low level) characterization 0 and 1.
The third modulation system are as follows: 0 and 1 is characterized with the level width of the electric power direct current, in this way by described the
Everybody of one Serial No. is sequentially modulated in the electric power direct current.It is assumed that the first Serial No. 1 is
0100100110, the voltage of electric power direct current 2 is 200V, characterizes 1, m milliseconds of width level characterizations 0 with n milliseconds of width level, presses
The waveform of the modulated electric power direct current of this mode is as shown in label 3 in Fig. 4.
In the first above-mentioned modulation system and second of modulation system, since level width is fixed, the first number
The digit of sequence is fixed, thus no matter the value of information (decimal number) be it is how many, modulation the time be it is fixed, i.e., 10
Level width, it is assumed that level width is 100 milliseconds, then the modulation time of the first Serial No. is 1 second.In the third above-mentioned modulation
In mode, due to the digit of the first Serial No. be it is fixed, level width only has m and two kinds of n, it is assumed that m is 100 milliseconds, and n is
200 milliseconds, thus no matter the value of information (decimal number) be it is how many, the modulation time of the first Serial No. 1 second to 2 seconds it
Between.Remove parity check bit, 9 bits of the first Serial No. can indicate 512 numerical value, it can expression 1,2,
3 ..., 510,511,512 totally 512 decimal numbers, and if directly characterized with level width with existing modulation system
These decimal numbers, then digital 1 corresponding level width is 100 milliseconds, the modulation time needed is 100 milliseconds, 2 pairs of number
The level width answered is 200 milliseconds, and the modulation time needed is 200 milliseconds, and digital 3 corresponding level width are 300 milliseconds, is needed
The modulation time wanted is 300 milliseconds, and so on, digital 512 corresponding level width are 51200 milliseconds, when the modulation needed
Between will be up to 51.2 seconds.It can be seen that using modulator approach of the present invention, modulates information time and transmission time will be greatly shortened,
And information value is bigger, and effect is more obvious, after being applied to control system, it is ensured that sensitivity of control system.
On the other hand, this modulator approach scalability is good.First Serial No. increases by one, so that it may keep capacity (controlled right
The quantity of elephant) it doubles.By 210=1024,211=2048,212=4096 it is found that the binary number with ten can indicate
1024 information can indicate 2048 information with 11 binary numbers, can be indicated with 12 binary numbers
4096 information, and so on, it can be seen that binary Serial No. is every to increase by one, and denotable information content will
It doubles.In this modulator approach, due to converting the information into binary first Serial No., then by the first digital sequence
Column are modulated to electric power direct current, then only the digit of the first Serial No. need to be increased by one, the quantity for the information that can be indicated
It will double, and after increasing by one, the modulation time of the first Serial No. only needs to increase by 100 milliseconds or 200 milliseconds, changes speech
It, it is only necessary to increasing less modulation and transmission time can be such that capacity (quantity of controll plant) doubles, therefore use this tune
Method processed is with good expansibility, and is very suitable to the more occasion of controll plant.
Above by specific embodiment, invention is explained in detail, these detailed description are only limited to help
Those skilled in the art understand that the contents of the present invention, can not be interpreted as limiting the scope of the invention.Art technology
Personnel should be included in protection model of the invention to various retouchings, the equivalent transformation etc. that above scheme carries out under present inventive concept
In enclosing.
Claims (6)
1. a kind of information modulation method based on electric power direct current, which is characterized in that the information modulation method includes following step
It is rapid:
S1, by the information coding, form binary first Serial No.；And
S2, first Serial No. is modulated to the electric power direct current.
2. the information modulation method according to claim 1 based on electric power direct current, which is characterized in that in the step S2
In, the modulation system of use are as follows: 0 and 1 is characterized with the multilevel type of the electric power direct current, in this way by first number
Everybody of sequence is sequentially modulated in the electric power direct current.
3. the information modulation method according to claim 2 based on electric power direct current, which is characterized in that use electric power direct current
High level characterization 1, low level characterization 0.
4. the information modulation method according to claim 2 based on electric power direct current, which is characterized in that use electric power direct current
High level characterization 0, low level characterization 1.
5. the information modulation method according to claim 1 based on electric power direct current, which is characterized in that in the step S2
In, the modulation system of use are as follows: 0 and 1 is characterized with the level width of the electric power direct current, in this way by first number
Everybody of sequence is sequentially modulated in the electric power direct current.
6. the information modulation method according to claim 1 based on electric power direct current, which is characterized in that the information includes
Metric address and metric data, in the step S1, the coding method of use are as follows: first will be described metric
Address is added multiplied by a constant, then with the metric data, obtains a metric coded number；It next will be described
Metric coded number is converted into binary coded number；Parity check bit finally is added in binary coded number, obtains
Obtain first Serial No..
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| CN103220861A (en) * | 2013-04-18 | 2013-07-24 | 杭州信路达科技有限公司 | Bi-wire lamp control system based on energy storage method |
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| CN105637982A (en) * | 2013-09-06 | 2016-06-01 | 飞利浦灯具控股公司 | Controller for power line coding and power line coding method |
| EP3087695A1 (en) * | 2013-12-23 | 2016-11-02 | Orange | Selection of a subset of adjacent carriers in an ofdm system |
| CN108353486A (en) * | 2015-12-01 | 2018-07-31 | 飞利浦照明控股有限公司 | Encode optic modulating device |
| CN110383626A (en) * | 2017-03-03 | 2019-10-25 | 松下知识产权经营株式会社 | Electrical power transmission system |
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103532592A (en) * | 2012-12-05 | 2014-01-22 | 深圳市友讯达科技发展有限公司 | Power line carrier coding modulation method |
| CN103220861A (en) * | 2013-04-18 | 2013-07-24 | 杭州信路达科技有限公司 | Bi-wire lamp control system based on energy storage method |
| CN103347346A (en) * | 2013-07-22 | 2013-10-09 | 石家庄市京华电子实业有限公司 | High-efficiency LED driving circuit |
| CN105637982A (en) * | 2013-09-06 | 2016-06-01 | 飞利浦灯具控股公司 | Controller for power line coding and power line coding method |
| EP3087695A1 (en) * | 2013-12-23 | 2016-11-02 | Orange | Selection of a subset of adjacent carriers in an ofdm system |
| CN105071912A (en) * | 2015-07-03 | 2015-11-18 | 华中科技大学 | Binary digital baseband code element communication method based on dual level |
| CN108353486A (en) * | 2015-12-01 | 2018-07-31 | 飞利浦照明控股有限公司 | Encode optic modulating device |
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Application publication date: 20190917 |
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