CN108075808A - Power carrier frequency control method and device - Google Patents

Power carrier frequency control method and device Download PDF

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Publication number
CN108075808A
CN108075808A CN201711280207.9A CN201711280207A CN108075808A CN 108075808 A CN108075808 A CN 108075808A CN 201711280207 A CN201711280207 A CN 201711280207A CN 108075808 A CN108075808 A CN 108075808A
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China
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module circuit
power
bar
configuration
direct
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CN201711280207.9A
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CN108075808B (en
Inventor
叶王建
唐麒麟
任鹏
文武
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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Priority to CN201711280207.9A priority Critical patent/CN108075808B/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B3/00Line transmission systems
    • H04B3/54Systems for transmission via power distribution lines
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B3/00Line transmission systems
    • H04B3/02Details
    • H04B3/46Monitoring; Testing
    • H04B3/48Testing attenuation

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

The invention discloses a power carrier frequency control method and a power carrier frequency control device, wherein the method comprises the following steps: reading cable characteristic parameters of the power bus detected by the circuit detection module circuit, analyzing and generating a configuration instruction; and sending the generated configuration instruction to the power line carrier module circuit so that the power line carrier circuit configures the working state of the power line carrier module circuit according to the configuration instruction. The invention solves the problem that the communication distance and the communication quality are influenced by the circuit attenuation in the long-distance communication in the power carrier technology in the prior art, and improves the communication distance and the communication quality of the power carrier.

Description

Power carrier control method for frequency and device
Technical field
The present invention relates to power line carrier technology field, in particular to a kind of power carrier control method for frequency and Device.
Background technology
With the development trend of energy internet, energy information interconnection is even closer.As information carrier transmission research most Long power line carrier technology, development are concentrated mainly on mesohigh power communication line.A big reason therein is power train Various, the changeable, power circuit of load of system differs to the attenuation of signal, to the degree of absorption of signal also with regard to a great difference, so Power line carrier module can not accomplish to communicate over long distances in some special occasions.
In being communicated for PLC technology middle and long distance in correlation technique, because Line Attenuation influences communication distance and communication The problem of quality, not yet proposes to efficiently solve scheme at present.
The content of the invention
The present invention provides a kind of power carrier control method for frequency and device, at least to solve electric power load in the prior art In the communication of wave technology middle and long distance, because Line Attenuation influences communication distance and the problem of communication quality.
In order to solve the above technical problems, a kind of according to an aspect of the invention, there is provided power carrier FREQUENCY CONTROL side Method includes:The cable characteristic parameter of line detection module circuit detection is read, and is parsed, generates configuration-direct, wherein, line Road detection module circuit is connected to power bus-bar, for detecting the cable characteristic parameter of power bus-bar;By the configuration-direct of generation Power line carrier module circuit is sent to, so that power line carrier circuit configures its working condition according to configuration-direct, wherein, electricity Line of force carrier circuit is connected to power bus-bar.
Optionally, the cable characteristic parameter of the power bus-bar of line detection module circuit detection includes at least one below: Circuit capacitive reactance, circuit induction reactance, line equivalent resistance, line admittance.
Optionally, the cable characteristic parameter of line detection module circuit detection is read, and is parsed, generation configuration refers to Order, including:According to the cable characteristic parameter of the power bus-bar of reading, the cable model of power bus-bar is analyzed, determines carrier frequency, Generate configuration-direct corresponding with definite carrier frequency.
Optionally, according to the cable characteristic parameter of the power bus-bar of reading, the cable model of power bus-bar is analyzed, determines to carry Wave frequency rate, including:According to the cable characteristic parameter of the power bus-bar of reading, the cable model of power bus-bar is analyzed, determines cable Model impairment frequency characteristic calculates the maximum loss dot frequency of cable model, determines maximum loss section, avoid maximum loss Section determines carrier frequency.
Optionally, according to the cable characteristic parameter of the power bus-bar of reading, the cable model of power bus-bar is analyzed, determines to carry Wave frequency rate generates configuration-direct corresponding with definite carrier frequency, including:Joined according to the cable feature of the power bus-bar of reading Amount, analyzes the cable model of power bus-bar, determines the corresponding gear of carrier frequency, wherein multiple gears are preset with, each gear The carrier frequency of corresponding different range;According to the definite corresponding gear of carrier frequency, generation is corresponding with definite carrier frequency Configuration-direct corresponding to gear.
Optionally, the configuration-direct of generation is sent to power line carrier module circuit, so that power line carrier module is electric Road configures its working condition according to configuration-direct, including:The configuration-direct of generation is sent to power line carrier module circuit, with Power line carrier module circuit is made to configure its carrier frequency according to the configuration-direct.
Optionally, the cable characteristic parameter of the power bus-bar of line detection module circuit detection is read, and is parsed, it is raw Into configuration-direct, further include:According to the cable characteristic parameter of the power bus-bar of reading, the cable model of power bus-bar is analyzed, really Determine modulation system and signal amplification factor, generate configuration-direct corresponding with definite modulation system and signal amplification factor.
Optionally, the configuration-direct of generation is being sent to power line carrier module circuit, so that power line carrier module After circuit configures its working condition according to configuration-direct, further include:Output data passes through electricity to power line carrier module circuit Line of force carrier module circuit transfers data to power bus-bar.
Optionally, the configuration-direct of generation is being sent to power line carrier module circuit, so that power line carrier module Circuit configures its working condition according to configuration-direct, including:Fixed power line carrier module circuit carrier frequency is fixed value;Root Optimal cable characteristic parameter corresponding with the fixed value is analyzed according to fixed value;The cable characteristic parameter of adjustment circuit busbar is optimal Cable characteristic parameter.
According to another aspect of the present invention, a kind of power carrier frequency control apparatus is provided, including:Wireline inspection mould Block circuit, processor and power line carrier module circuit, wherein, line detection module circuit is connected to power bus-bar, is used for Detect the cable characteristic parameter on power bus-bar;Processor is connected with line detection module circuit, for reading wireline inspection mould The cable characteristic parameter of block circuit detection, is parsed, and generates configuration-direct according to analysis result;Power line carrier module electricity For receiving the configuration-direct of processor transmission, the working condition of itself is configured according to configuration-direct for road.
Optionally, processor is additionally operable to output data to power line carrier module circuit, passes through power line carrier module electricity Road transfers data to power bus-bar.
In the present invention, in power carrier FREQUENCY CONTROL, consider different cable characteristic parameters, examined according to circuit is read The cable characteristic parameter generation control instruction of the power bus-bar of modular circuit detection is surveyed, and then to power line carrier module circuit Working condition is controlled, and this control mode can effectively solve PLC technology middle and long distance communication in the prior art In, because Line Attenuation influences communication distance and the problem of communication quality, improve the communication distance of power carrier and improve communication matter Amount.
Description of the drawings
Fig. 1 is a kind of optional flow chart of power carrier control method for frequency according to embodiments of the present invention;And
Fig. 2 is a kind of optional structure diagram of power carrier frequency control apparatus according to embodiments of the present invention.
Specific embodiment
Here exemplary embodiment will be illustrated in detail, example is illustrated in the accompanying drawings.Following description is related to During attached drawing, unless otherwise indicated, the same numbers in different attached drawings represent the same or similar element.Following exemplary embodiment Described in embodiment do not represent and the consistent all embodiments of the present invention.On the contrary, they be only with it is such as appended The example of the consistent apparatus and method of some aspects being described in detail in claims, of the invention.
Embodiment 1
Power carrier control method for frequency provided by the invention is illustrated below in conjunction with the accompanying drawings.
As shown in Figure 1, the power carrier control method for frequency may comprise steps of S102-S104:
S102, reads the cable characteristic parameter of line detection module circuit detection, and is parsed, and generates configuration-direct, Wherein, line detection module circuit is connected to power bus-bar, for detecting the cable characteristic parameter of power bus-bar;
Preferably, the cable characteristic parameter of the power bus-bar of line detection module circuit detection can include:Circuit capacitive reactance, One or more of circuit induction reactance, line equivalent resistance, line admittance can also increase according to circuit requirements to other cables The detection of characteristic parameter.
The configuration-direct of generation is sent to power line carrier module circuit by S104, so that power line carrier module circuit Its working condition is configured according to configuration-direct, wherein, power line carrier module circuit is connected to power bus-bar.
In the above-described embodiment, in power carrier FREQUENCY CONTROL, different cable characteristic parameters is considered, according to reading The cable characteristic parameter generation control instruction of the power bus-bar of line detection module circuit detection, and then to power line carrier module The working condition of circuit is controlled, this control mode can effectively solve in PLC technology in the prior art grow away from The problem of from communication, communication distance and communication quality is influenced because of Line Attenuation, improves power carrier communication distance and communication matter Amount.
During specific implementation, the cable characteristic parameter of the power bus-bar of line detection module circuit detection is read, and is solved Analysis generates configuration-direct, including:According to the cable characteristic parameter of the power bus-bar of reading, the cable model of power bus-bar is analyzed, It determines carrier frequency, generates configuration-direct corresponding with definite carrier frequency.It preferably, can be with when stating scheme in realization According to the cable characteristic parameter of the power bus-bar of reading, the cable model of power bus-bar is analyzed, determines cable model impairment frequency Characteristic calculates the maximum loss dot frequency of cable model, determines maximum loss section, avoids maximum loss section and determines carrier wave Frequency.For example, using the model inspection to circuit access cable and the technology that models, the maximum loss point of corresponding model is calculated And its ± 3dB frequency ranges, then, according to more than result of calculation, power line signal carrier frequency is adjusted, avoids its attenuation points, It adjusts to the carrier frequency of minimal attenuation.
Preferably, in the cable characteristic parameter of the power bus-bar according to reading, the cable model of power bus-bar is analyzed, is determined Carrier frequency, can be first according to the cable of the power bus-bar of reading when generating configuration-direct corresponding with definite carrier frequency Characteristic parameter analyzes the cable model of power bus-bar, determines the corresponding gear of carrier frequency, wherein being preset with multiple gears, often A gear corresponds to the carrier frequency of different range;Then, according to the definite corresponding gear of carrier frequency, generation and definite carrier wave Configuration-direct corresponding to the corresponding gear of frequency.Mapping relations by the carrier frequency for setting gear and different range, can More quickly and easily to generate configuration-direct, adjusting control is also allowed for.
Preferably, the configuration-direct of generation is being sent to power line carrier module circuit, so that power line carrier module After circuit configures its working condition according to configuration-direct, further include:Output data passes through electricity to power line carrier module circuit Line of force carrier module circuit transfers data to power bus-bar.
Furthermore, it is necessary to explanation, the configuration-direct of generation may be used also in addition to the configuration of the carrier frequency comprising above-mentioned record With the cable characteristic parameter of the power bus-bar according to reading, the cable model of power bus-bar is analyzed, determines modulation system and signal Amplification factor generates configuration-direct corresponding with definite modulation system and signal amplification factor.It, can by the above embodiment To realize the diversity of configuration, the versatility of power line carrier module is further improved.
As another embodiment, the configuration-direct of generation is sent to power line carrier module electricity described Road, during so that the power line carrier module circuit configuring its working condition according to the configuration-direct, the fixed power line Carrier module circuit carrier frequency is fixed value;According to fixed value analysis optimal cable feature ginseng corresponding with the fixed value Amount;The cable characteristic parameter for adjusting the circuit busbar is the optimal cable characteristic parameter.This embodiment reduces control Step realizes simple optimal control, similary to realize the effect for improving communication distance and communication quality.
Embodiment 2
Based on the power carrier control method for frequency provided in above-described embodiment 1, optional embodiment 2 of the present invention also provides A kind of power carrier frequency control apparatus, Fig. 2 show a kind of optional structure diagram of the device, and as shown in Figure 2 shows In intention, including two communication modules (modular circuit 1 and modular circuit 2) apart from each other, specifically, power carrier frequency Rate control device includes:Line detection module circuit, processor and power line carrier module circuit, wherein,
Line detection module circuit, be connected to power bus-bar (Fig. 2 show in circuit busbar can be single phase ac L/N, Can be dc bus), for detecting the cable characteristic parameter on power bus-bar;
Processor is connected with line detection module circuit, for reading the cable feature of line detection module circuit detection Parameter is parsed, and generates configuration-direct according to analysis result;
For receiving the configuration-direct of processor transmission, itself is configured according to configuration-direct for power line carrier module circuit Working condition.
Preferably, processor is additionally operable to output data to power line carrier module circuit, passes through power line carrier module electricity Road transfers data to power bus-bar.
In the above-described embodiment, in power carrier FREQUENCY CONTROL, different cable characteristic parameters is considered, according to reading The cable characteristic parameter generation control instruction of the power bus-bar of line detection module circuit detection, and then to power line carrier module The working condition of circuit is controlled, this control mode can effectively solve in PLC technology in the prior art grow away from The problem of from communication, communication distance and communication quality is influenced because of Line Attenuation, improves the versatility of power line carrier module, into one Step ground, improves communication quality.
The various pieces of the power carrier frequency control apparatus shown in Fig. 2 are described in detail below, so as to better Understand the present apparatus:
Modular circuit includes three parts in the present invention:
1. power line carrier module circuit, major function include:1. receiving processor instruction, carry out oneself state and match somebody with somebody It puts.It is configured mainly to carrier frequency, modulation system, signal amplification factor;2. receive the data-signal that sends of processor, and by its Complete transparent transmission is issued on power bus-bar (circuit busbar can be single phase ac L/N or dc bus);3. reception comes from Signal on power bus-bar is sent to processor end after being filtered frequency-selecting.
2. processor, major function includes:1. exporting configuration-direct to power line carrier module circuit, its work is configured State;2. output data is transferred to power bus-bar to power line carrier module circuit by it;3. read line detection module electricity Road parameter, and process analysis;
3. line detection module circuit, major function include:1. the cable characteristic on power bus-bar is detected, it is main wired The appearance of a street resists, circuit induction reactance, line equivalent resistance, line admittance etc.;2. detection data are uploaded to processor end.
Its course of work is that modular circuit 1 and modular circuit 2 are two communication module (no actual requirements apart from each other Distance), it is communicated by power bus-bar between two modular circuits.The function of two modular circuits is the same.After the completion of circuit connection, By the cable parameter of line detection module detection power bus-bar, the data of line detection module are read by processor timing, and are done Dissection process analyzes cable model;Then entire communication system can do following two selections, to be optimal transmission, reduce Transmission loss:
1) fixes power line carrier module carrier frequency, and the parameter characteristic of its best-fit cable is analyzed by carrier frequency, The cable parameter that contrasting detection arrives is altered cable processing.
2) analyzes its attenuation-frequency characteristic according to cable parameter data are detected, best transmission is set automatically by processor Carrier frequency avoids cable attenuation.Under this control mode, multiple carrier frequency gears can be set in the processor, pass through analysis Cable model determines the carrier frequency of most optimal gear.So as to ensure to access the power line carrier module on same power bus-bar Identical carrier frequency is operated in, ensures normal communication.
On the device in above-described embodiment, wherein unit, module performs the concrete mode of operation related It is described in detail in the embodiment of this method, explanation will be not set forth in detail herein.
Those skilled in the art will readily occur to the present invention its after considering specification and putting into practice invention disclosed herein Its embodiment.This application is intended to cover the present invention any variations, uses, or adaptations, these modifications, purposes or Person's adaptive change follows the general principle of the present invention and the common knowledge in the art do not invented including the present invention Or conventional techniques.Description and embodiments are considered only as illustratively, and true scope and spirit of the invention are by following Claim is pointed out.
It should be appreciated that the invention is not limited in the precision architecture for being described above and being shown in the drawings, and And various modifications and changes may be made without departing from the scope thereof.The scope of the present invention is only limited by appended claim.

Claims (11)

1. a kind of power carrier control method for frequency, which is characterized in that including:
The cable characteristic parameter of line detection module circuit detection is read, and is parsed, generates configuration-direct, wherein, it is described Line detection module circuit is connected to the power bus-bar, for detecting the cable characteristic parameter of power bus-bar;
The configuration-direct of generation is sent to power line carrier module circuit, so that the power line carrier circuit is according to institute It states configuration-direct and configures its working condition, wherein, the power line carrier circuit is connected to the power bus-bar.
2. the according to the method described in claim 1, it is characterized in that, power bus-bar of line detection module circuit detection Cable characteristic parameter includes at least one below:Circuit capacitive reactance, circuit induction reactance, line equivalent resistance, line admittance.
3. the according to the method described in claim 2, it is characterized in that, cable spy for reading the detection of line detection module circuit Parameter is levied, and is parsed, generates configuration-direct, including:
According to the cable characteristic parameter of the power bus-bar of reading, the cable model of power bus-bar is analyzed, determines carrier frequency, Generate configuration-direct corresponding with the definite carrier frequency.
4. the according to the method described in claim 3, it is characterized in that, cable feature of the power bus-bar according to reading Parameter analyzes the cable model of power bus-bar, determines carrier frequency, including:
According to the cable characteristic parameter of the power bus-bar of reading, the cable model of power bus-bar is analyzed, determines cable model Attenuation-frequency characteristic calculates the maximum loss dot frequency of the cable model, determines maximum loss section, avoids the maximum Loss section determines carrier frequency.
5. the according to the method described in claim 4, it is characterized in that, cable feature of the power bus-bar according to reading Parameter analyzes the cable model of power bus-bar, determines carrier frequency, generates configuration corresponding with the definite carrier frequency and refers to Order, including:
According to the cable characteristic parameter of the power bus-bar of reading, the cable model of power bus-bar is analyzed, determines carrier frequency Corresponding gear, wherein being preset with multiple gears, each gear corresponds to the carrier frequency of different range;
According to the definite corresponding gear of the carrier frequency, the configuration corresponding to gear corresponding with definite carrier frequency is generated Instruction.
6. method according to claim 4 or 5, which is characterized in that described that the configuration-direct of generation is sent to electricity Line of force carrier module circuit, so that the power line carrier module circuit configures its working condition according to the configuration-direct, bag It includes:
The configuration-direct of generation is sent to power line carrier module circuit, so that the power line carrier module circuit root Its carrier frequency is configured according to the configuration-direct.
7. the according to the method described in claim 3, it is characterized in that, electric power mother for reading the detection of line detection module circuit The cable characteristic parameter of line, and parsed, configuration-direct is generated, is further included:
According to the cable characteristic parameter of the power bus-bar of reading, the cable model of power bus-bar is analyzed, determines modulation system And signal amplification factor, generate configuration-direct corresponding with the definite modulation system and signal amplification factor.
8. according to the method described in claim 1, it is characterized in that, the configuration-direct of generation is sent to electric power described Line carrier module circuit, so that after the power line carrier module circuit configures its working condition according to the configuration-direct, It further includes:
Output data is to the power line carrier module circuit, by the power line carrier module circuit by the data transmission To the power bus-bar.
9. according to the method described in claim 1, it is characterized in that, the configuration-direct of generation is sent to electric power described Line carrier module circuit, so that the power line carrier module circuit configures its working condition according to the configuration-direct, including:
The fixed power line carrier module circuit carrier frequency is fixed value;
Optimal cable characteristic parameter corresponding with the fixed value is analyzed according to the fixed value;
The cable characteristic parameter for adjusting the circuit busbar is the optimal cable characteristic parameter.
10. a kind of power carrier frequency control apparatus, which is characterized in that including:Line detection module circuit, processor and electricity Line of force carrier module circuit, wherein,
The line detection module circuit, is connected to power bus-bar, for detecting the cable characteristic parameter on the power bus-bar;
The processor is connected with the line detection module circuit, for reading the line detection module circuit detection The cable characteristic parameter, is parsed, and generates configuration-direct according to analysis result;
The power line carrier module circuit, for receiving the configuration-direct that the processor is sent, according to the configuration-direct Configure the working condition of itself.
11. device according to claim 10, which is characterized in that the processor is additionally operable to output data to the electric power Line carrier module circuit transmits the data to the power bus-bar by the power line carrier module circuit.
CN201711280207.9A 2017-12-06 2017-12-06 Power carrier frequency control method and device Active CN108075808B (en)

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Cited By (1)

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CN109552951A (en) * 2018-11-30 2019-04-02 广州云犀智能科技有限公司 A kind of elevator digital communication system based on broadband power line carrier communication technology

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CN109552951B (en) * 2018-11-30 2021-02-26 广州云犀智能科技有限公司 Elevator digital communication system based on broadband power line carrier communication technology

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