CN107645318A - Arrowband power line and CAN converter - Google Patents
Arrowband power line and CAN converter Download PDFInfo
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- CN107645318A CN107645318A CN201710947616.3A CN201710947616A CN107645318A CN 107645318 A CN107645318 A CN 107645318A CN 201710947616 A CN201710947616 A CN 201710947616A CN 107645318 A CN107645318 A CN 107645318A
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- power line
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Abstract
The present invention relates to arrowband power line and CAN converter, including arrowband power line interface circuit, power-line carrier controller, processor, CAN controller and CAN drivers.Arrowband power line of the present invention is with CAN converter by the way that the carrier signal on power line is transmitted after arrowband power line interface circuit, power-line carrier controller, processor, CAN controller, CAN drivers and CAN protection circuits by CAN; realize the conversion of narrowband carrier data and CAN data; change it is convenient and swift, and then cause power-line carrier communication be able to larger range of popularization and application.
Description
Technical field
Patent of the present invention is related to power line carrier technology field, total more specifically to a kind of arrowband power line and CAN
Line converter.
Background technology
Power line carrier, PLC（Power Line Communication, PLC）It is to utilize high-voltage power line（In power carrier
Field is often referred to 35kV and above）, medium voltage power line（Refer to 10kV voltage class）Or low-voltage distribution wire（380/220V
User's line）A kind of specific communication mode of voice or data transfer is carried out as information transmitting medium.The sharpest edges of the technology
It is to rely on power line network, it is not necessary to rewiring, have the characteristics that construction, operating cost are low.
But due to power line be not be specifically used to transmit communication data, its topological structure and physical characteristic all with
Traditional communication transmission media（Such as twisted-pair feeder, coaxial cable, optical fiber）It is entirely different.Its communication environment is also quite severe,
There can be characteristic of channel complexity when being communicated on power line, load is more, noise jamming is strong, fading channel is big, communication environment
Many unfavorable factors such as severe.When carrying out carrier communication using power line, on the one hand, forceful electric power isolation must be carried out；The opposing party
Face, it is also to be ensured that higher transmission rates and efficiency of transmission.With the further investigation to power-line carrier communication, above-mentioned electric power
Need solved the problems, such as various solutions in line carrier communication.But power line carrier communication also all concentrates on mostly at present
The applications such as simple Street lamps control, automatic data logging are upper, can't carry out the application of complexity, such as use developed in recent years
Home energy source system of CAN (control area net(CAN)) bus communication mode etc., existing power line carrier can't with CAN it
Between carry out data conversion, be applied in home energy source system, and it is too high to re-establish communication network cost again.
The content of the invention
The purpose of patent of the present invention is that providing one kind is used for arrowband power line and CAN converter, solves existing
In technology arrowband power line can not carry out data conversion between CAN the problem of.
Technical scheme is used by patent of the present invention solves technical problem：A kind of arrowband power line and CAN are provided
Converter, including arrowband power line interface circuit, narrow-band power line carrier controller, processing（30）, CAN controller and CAN drive
Dynamic device；
The arrowband power line interface circuit is connected with power line, for receiving and sending bandpass filtering, interface protection, isolation change
Pressure and signal coupling；
The narrow-band power line carrier controller is connected with the arrowband power line interface circuit and the processor respectively, is used for
Narrowband carrier data are received from the arrowband power line interface circuit, it is demodulated and sent to the processor；And it is used for
The data received from the processor are modulated and power amplification and sent to the arrowband power line interface circuit；
The processor is used for the converting transmission for controlling the narrowband carrier data transfer and CAN data；
The CAN controller is connected with the processor and the CAN drivers respectively, for the processor with it is described
To the protocol conversion of the CAN data between CAN drivers；
The CAN drivers are connected with the CAN controller, for receiving and sending CAN data.
Preferably, the converter also includes being connected to the power supply by AC conversion for direct current with the power line
Change-over circuit, and for being powered to the narrow-band power line carrier controller, processor, CAN controller and CAN drivers.
Preferably, the arrowband power line interface circuit includes power line interface, the power line being connected with the power line
Protection circuit, bandpass filter, amplitude limiter circuit and signal transformer.
Preferably, in addition to the power line interface and the narrow-band power line carrier controller it is connected to detect institute
State the zero cross detection circuit of power line zero crossing.
Preferably, in addition to the CAN drivers and CAN the CAN protection circuits being connected, the CAN protections electricity
Road is used for common mode disturbances filtering and antistatic treatment.
Preferably, in addition to respectively with the processor it is connected to indicate that the first of the narrowband carrier data mode refers to
Show lamp, the second indicator lamp for indicating CAN data mode and the 3rd indicator lamp for indicating operating status.
Implement patent arrowband of the present invention power line and CAN converter, have the advantages that or advantage：Arrowband electricity
The line of force passes through the narrowband carrier data on power line are electric by arrowband power line interface circuit, arrowband with CAN converter
Transmitted, realized narrow by CAN after line of force carrier controller, processor, CAN controller, CAN drivers and CAN protection circuits
Conversion with carrier data Yu CAN data, conversion is convenient and swift, and then it is bigger make it that power-line carrier communication is able to
The popularization and application of scope.
Brief description of the drawings
It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme of patent Example of the present invention
The accompanying drawing used is briefly described, it is therefore apparent that and drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing, in accompanying drawing：
Fig. 1 is the structural representation of arrowband power line of the present invention and CAN converter；
Fig. 2 is the schematic diagram of arrowband power line of the present invention and the arrowband power line interface circuit of CAN converter.
Embodiment
In order that the object, technical solution and advantage of patent of the present invention are more clearly understood, what be will be described below is various
Embodiment will refer to corresponding accompanying drawing, and these accompanying drawings constitute a part for embodiment, which describe the realization present invention specially
The various embodiments that profit may use.It should be appreciated that other embodiments also can be used, or embodiment enumerated herein is carried out
Modification structurally and functionally, without departing from the scope and spirit of patent of the present invention.
Patent of the present invention provides a kind of arrowband power line and CAN converter embodiment.As shown in figure 1, arrowband electric power
Line and CAN converter, including arrowband power line interface circuit 10, narrow-band power line carrier controller 20, processor 30,
CAN controller 40, CAN drivers 50 and power-switching circuit 60.
Specifically, arrowband power line interface circuit 10 and power line（The power line of such as AC network）Connection, for connecing
Receive and send bandpass filtering, interface protection, isolation transformation and signal coupling；Arrowband power line interface circuit can use this area
Various power line interface circuits well known to technical staff, such as include transformer, electric capacity and the resistance in parallel with electric capacity.
Preferably, arrowband power line interface circuit 10 includes power line interface 11, power line protection circuit 12, the band being connected with power line
Bandpass filter 13（It can also be low pass filter）, amplitude limiter circuit 14, signal transformer 15 and zero cross detection circuit 16.Specifically
, the entrance of the over-pressed signal on power line is prevented using power line protection circuit 12, bandpass filter 13 is realized to power line
The barrier of 50Hz signals simultaneously makes narrowband carrier signal can be with two-way by signal transformer 15 and narrow-band power line carrier controller
20 are connected to receive and dispatch narrowband carrier data, realize the complete physics of power line and narrow-band power line carrier controller 20 every
From.
Arrowband power line interface circuit 10 also includes being connected with power line interface 11 and narrow-band power line carrier controller 20
For detecting the zero cross detection circuit 16 of power line zero crossing.Zero cross detection circuit 16 is used for the zero passage letter for gathering 50Hz power lines
Number, so as to sending and receiving for synchronous carrier signal.Zero cross detection circuit 16 is exactly the time for detecting power line in zero crossing
Level signal is sent, by the way of light-coupled isolation, narrow-band power line carrier controller 20 is isolated with power line, prevents electric power
Interference of the various interference to narrow-band power line carrier controller 20 on line, improve the stabilization of narrow-band power line carrier controller 20
Property and reliability.
Wherein, power line can be any power line, such as high-voltage power line（It is often referred to not less than 35kV voltage class
Power line）, medium voltage power line（It is often referred to the power line of 10kV voltage class）Or low-voltage power line（It is often referred to 380V or 220V
Custom power line）Deng, during power line carrier communication these power lines can be information transfer medium.Power line
Carrier communication (PLC) is that a kind of LAN Technique of terminal networking, data transfer and communication is carried out using power line.Arrowband
PLC is operated in below 500kHz frequency range, is adapted to control class application, in point-to-point communication distance, chip cost, power consumption, module
There is advantage in volume；On outdoor low-voltage power line, it is adapted to the connection of " last 1 kilometer " terminal and communication；Power line indoors
On, then it is adapted to connection, communication and the control of Household intelligent device.Arrowband power line communication generation, which opens, is limited to 3K ~ 500KHz, communicates
Speed is less than 1Mbit/s, more using technologies such as common FSK technologies, DSSS technologies and linear frequency modulation Chirp.Arrowband power line
The communication technology without rewiring, if using existing power distribution network, along with some PLC local sides, relaying, terminal device and
Auxiliary equipment, you can original power line network is become into power line communication network.
CAN is Controller Area Network abbreviation（Hereinafter referred to as CAN）, it is the serial of ISO International standardizations
Communication protocol.Fieldbus is one of focus of nowadays automatic art, is described as the computer of automatic field
LAN.Its appearance realizes that real-time, reliable data communication provides strong between each node for dcs
Technical support.CAN is that the one kind with traffic rate height, easily realization and the various features such as cost performance height has been formed
The fieldbus of international standard.
Narrow-band power line carrier controller 20 is connected with arrowband power line interface circuit 10 and processor 30 respectively, for from
Arrowband power line interface circuit 10 receives narrowband carrier data, and it is demodulated and sent to processor 30；And for from
The data that reason device 30 receives are modulated and power amplification and sent to arrowband power line interface circuit 10；Narrow-band power line carrier
The major function of controller 20 is to carry out the modulation and demodulation of signal, and it can use any mould that can complete modulation /demodulation function
Block is realized, it is preferable that narrow-band power line carrier controller 20 can be develop at present be used for each of power line carrier communication
The powerful carrier chip of kind, carrier chip known in those skilled in the art, such as STMicw Electronics's public affairs can be used
Department（SGS-THOMSON）The carrier chips such as ST7536, ST7537, ST7538 of offer, what Intellon companies provided
The carrier chips such as SSCP300, INT51X1.
Processor 30 is used for the converting transmission for controlling the narrowband carrier data transfer and CAN data；Play data
Exchange and control action.The processor 30 is connected to the first indicator lamp 31 of instruction narrowband carrier data mode, for indicating
Second indicator lamp 32 of CAN data mode and the 3rd indicator lamp 33 for indicating operating status.
CAN controller 40 respectively with processor 30 and CAN drivers（50）Connection, for being driven in processor 30 and CAN
To the protocol conversion of CAN data between device 50；The data of one side reception processing device 3 are sent to CAN drivers 50, a side
The data that face receives CAN drivers 50 are sent to processor 30.The CAN controller 40 can use those skilled in the art institute public
MCP2551, MCP2510 controller chip of SJA1000, Microchip company of the controller chip known, such as NXP companies.
CAN drivers 50 are connected with CAN controller 40, for receiving and sending CAN data；For CAN controller 40
Interface is provided, it is differential to CAN to send and receive function.It can use grace intelligence Pu semiconductor（NXP
Semiconductors, the separate semiconductor company set up by Philip）CAN drivers TJA1050, TJA1042 of exploitation etc..
Power-switching circuit 60 is connected to AC conversion be direct current with power line, and for giving arrowband power line
Carrier controller 20, processor 30, CAN controller 40 and CAN drivers 50 are powered.Wherein, power-switching circuit 60 is AC-DA
Power-switching circuit, the power-switching circuit being known to the skilled person, is not discussed here.
CAN protection circuits 70 be used for common mode disturbances filtering, antistatic treatment, CAN protection circuits 70 respectively with CAN drivers
40 connect with CAN.Interference can be reduced by CAN protection circuits 70, improve the Electro Magnetic Compatibility of CAN.
Patent of the present invention passes through the narrowband carrier data on power line are electric by arrowband power line interface circuit 1, arrowband
Line of force carrier controller, processor, CAN controller, CAN drivers and CAN protection circuits 7 are transmitted by CAN, realize arrowband
The conversion of carrier data and CAN data, conversion is convenient and swift, and then causes power-line carrier communication to be able to bigger model
The popularization and application enclosed.
The preferred embodiment of patent of the present invention is the foregoing is only, those skilled in the art know, are not departing from this
In the case of the spirit and scope of patent of invention, various changes or equivalent substitution can be carried out to these features and embodiment.Separately
Outside, under the teaching of patent of the present invention, these features and embodiment can be modified to adapt to particular situation and material
Without departing from the spirit and scope of patent of the present invention.Therefore, patent of the present invention is not by specific embodiment disclosed herein
Limitation, the embodiment fallen with the range of claims hereof belong to the protection domain of patent of the present invention.
Claims (6)
1. a kind of arrowband power line and CAN converter, it is characterised in that including arrowband power line interface circuit（10）, it is narrow
Band power-line carrier controller（20）, processor（30）, CAN controller（40）With CAN drivers（50）；
The arrowband power line interface circuit（10）Be connected with power line, for receive and send bandpass filtering, interface protection, every
Coupled from transformation and signal；
The narrow-band power line carrier controller（20）Respectively with the arrowband power line interface circuit（10）With the processor
（30）Connection, for from the arrowband power line interface circuit（10）Narrowband carrier data are received, it is demodulated and sent to institute
State processor（30）；And for from the processor（30）The data of reception are modulated and power amplification and sent to institute
State arrowband power line interface circuit（10）；
The processor（30）For controlling the converting transmission of the narrowband carrier data transfer and CAN data；
The CAN controller（40）Respectively with the processor（30）With the CAN drivers（50）Connection, at the place
Manage device（30）With the CAN drivers（50）Between protocol conversion to the CAN data；
The CAN drivers（50）With the CAN controller（40）Connection, for receiving and sending the CAN data.
2. arrowband power line according to claim 1 and CAN converter, it is characterised in that also include and the electricity
The line of force is connected to the power-switching circuit for direct current by AC conversion（60）, and for the narrow-band power line carrier
Controller（20）, processor（30）, CAN controller（40）With CAN drivers（50）Power supply.
3. arrowband power line according to claim 1 and CAN converter, it is characterised in that the arrowband power line
Interface circuit（10）Including the power line interface being connected with the power line（11）, power line protection circuit（12）, bandpass filtering
Device（13）, amplitude limiter circuit（14）And signal transformer（15）.
4. power line narrow band carrier communication module according to claim 3, it is characterised in that the arrowband power line interface
Circuit（10）Also include and the power line interface（11）And the narrow-band power line carrier controller（20）It is connected to detect
The zero cross detection circuit of the power line zero crossing（16）.
5. arrowband power line according to claim 1 and CAN converter, it is characterised in that also include and the CAN
Driver（50）The CAN protection circuits connected with the CAN（70）, the CAN protection circuits（70）For common mode disturbances
Filtering and antistatic treatment.
6. arrowband power line according to claim 1 and CAN converter, it is characterised in that also include respectively with institute
State processor（30）It is connected to indicate the first indicator lamp of the narrowband carrier data mode（31）, for indicating CAN
Second indicator lamp of data mode（32）And the 3rd indicator lamp for indicating operating status（33）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710947616.3A CN107645318A (en) | 2017-10-12 | 2017-10-12 | Arrowband power line and CAN converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710947616.3A CN107645318A (en) | 2017-10-12 | 2017-10-12 | Arrowband power line and CAN converter |
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| Publication Number | Publication Date |
|---|---|
| CN107645318A true CN107645318A (en) | 2018-01-30 |
Family
ID=61123089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710947616.3A Pending CN107645318A (en) | 2017-10-12 | 2017-10-12 | Arrowband power line and CAN converter |
Country Status (1)
| Country | Link |
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| CN (1) | CN107645318A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102118184A (en) * | 2009-12-30 | 2011-07-06 | 比亚迪股份有限公司 | Device and method for power line carrier communication |
| CN205265685U (en) * | 2015-12-25 | 2016-05-25 | 浙江水利水电学院 | Power line carrier communication device |
| CN106209170A (en) * | 2016-08-29 | 2016-12-07 | 新开普电子股份有限公司 | Double frequency-band power line carrier communication unit |
| CN106301470A (en) * | 2015-05-19 | 2017-01-04 | 深圳友讯达科技股份有限公司 | A kind of power wire broadband carrier communication module |
-
2017
- 2017-10-12 CN CN201710947616.3A patent/CN107645318A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102118184A (en) * | 2009-12-30 | 2011-07-06 | 比亚迪股份有限公司 | Device and method for power line carrier communication |
| CN106301470A (en) * | 2015-05-19 | 2017-01-04 | 深圳友讯达科技股份有限公司 | A kind of power wire broadband carrier communication module |
| CN205265685U (en) * | 2015-12-25 | 2016-05-25 | 浙江水利水电学院 | Power line carrier communication device |
| CN106209170A (en) * | 2016-08-29 | 2016-12-07 | 新开普电子股份有限公司 | Double frequency-band power line carrier communication unit |
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