CN207490958U - Broadband power line and CAN bus converter - Google Patents
Broadband power line and CAN bus converter Download PDFInfo
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- CN207490958U CN207490958U CN201721313923.8U CN201721313923U CN207490958U CN 207490958 U CN207490958 U CN 207490958U CN 201721313923 U CN201721313923 U CN 201721313923U CN 207490958 U CN207490958 U CN 207490958U
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- power line
- broadband power
- broadband
- controller
- bus
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Abstract
The utility model is related to broadband power line and CAN bus converter, including broadband power interface circuit, power-line carrier controller, processor, CAN controller and CAN drivers.The utility model broadband power line is with CAN bus converter by the way that the carrier signal on power line is transmitted after broadband power interface circuit, power-line carrier controller, processor, CAN controller, CAN drivers and CAN protect circuit by CAN bus; realize the conversion of bandwidth carrier data and CAN bus data; convert it is convenient and efficient so that power-line carrier communication is able to larger range of popularization and application.
Description
Technical field
The utility model is related to power line carrier technology fields, total more specifically to a kind of broadband 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 transmission is carried out as information transmitting medium.The sharpest edges of the technology
It is to rely on power line network, does not need to rewiring, has the characteristics that construction, operating cost are low.
But due to power line be not be specifically used to transmission 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,
Can be there are 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
It needs to have 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 complicated application, 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 bus it
Between carry out data conversion, be applied in home energy source system, and it is excessively high to re-establish communication network cost again.
Invention content
The purpose of this utility model is to provide one kind for broadband power line and CAN bus converter, solve existing
In technology broadband power line cannot carry out data conversion between CAN bus the problem of.
The utility model technical scheme applied to solve the technical problem is：A kind of broadband power line and CAN bus are provided
Converter, including broadband power interface circuit, broadband power line carrier controller, processing（30）, CAN controller and CAN drive
Dynamic device；The broadband power interface circuit is connect with power line, for sending and receiving bandpass filtering, interface protection, isolation
Transformation and signal coupling；The broadband power line carrier controller respectively with the broadband power interface circuit and the processing
Device connects, and for receiving bandwidth carrier data from the broadband power interface circuit, it is demodulated and is sent to the processing
Device；And for being modulated to the data received from the processor and power amplification and being sent to the broadband power line and connect
Mouth circuit；The processor is used to control the converting transmission of the bandwidth carrier data transmission and CAN bus data；
The CAN controller is connect respectively with the processor and the CAN drivers, in the processor and institute
State the protocol conversion to the CAN bus data between CAN drivers；The CAN drivers are connect with the CAN controller,
For sending and receiving CAN bus data.
Preferably, the converter further include connect with the power line for by AC conversion be direct current power supply
Conversion circuit, and for powering to the broadband power line carrier controller, processor, CAN controller and CAN drivers.
Preferably, the broadband power interface circuit includes the power line interface, the power line that are connect with the power line
Protect circuit, bandpass filter, amplitude limiter circuit and signal transformer.
Preferably, it further includes and is connect with the power line interface and the broadband power line carrier controller for detecting
State the zero cross detection circuit of power line zero crossing.
Preferably, the CAN protection circuits being connect with the CAN drivers and CAN bus, the CAN protections electricity are further included
Road is filtered for common mode interference and antistatic treatment.
Preferably, it further includes and is connected to the processor the be used to indicate the bandwidth carrier data mode first finger respectively
Show lamp, be used to indicate the second indicator light of CAN bus data mode and be used to indicate the third indicator light of working condition.
Implement the utility model broadband power line and CAN bus converter, have the advantages that or advantage：Broadband electricity
The line of force passes through the bandwidth carrier data on power line are electric by broadband power interface circuit, broadband with CAN bus converter
It is transmitted, realized wide by CAN bus after line of force carrier controller, processor, CAN controller, CAN drivers and CAN protection circuits
Conversion with carrier data Yu CAN bus data, conversion is convenient and efficient, so that power-line carrier communication is able to bigger
The popularization and application of range.
Description of the drawings
It is required in being described below to embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
The attached drawing used is briefly described, it is therefore apparent that and the accompanying drawings in the following description is only some embodiments of the utility model,
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings
Other attached drawings, in attached drawing：
Fig. 1 is the structure diagram of the utility model broadband power line and CAN bus converter；
Fig. 2 is the schematic diagram of the utility model broadband power line and the broadband power interface circuit of CAN bus converter.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, what be will be described below is various
Embodiment will refer to corresponding attached drawing, these attached drawings constitute a part for embodiment, and which describe realize that this practicality is new
The various embodiments that type 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 of the utility model and essence.
The utility model provides a kind of broadband power line and CAN bus converter embodiment.As shown in Figure 1, broadband power
Line and CAN bus converter, including broadband power interface circuit 10, broadband power line carrier controller 20, processor 30,
CAN controller 40, CAN drivers 50 and power-switching circuit 60.
Specifically, broadband power 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；This field may be used in broadband power interface circuit
Various power line interface circuits well known to technical staff, such as including transformer, capacitance and the resistance in parallel with capacitance.
Preferably, broadband power interface circuit 10 includes the power line interface 11 being connect with power line, power line protection circuit 12, band
Bandpass filter 13, amplitude limiter circuit 14, signal transformer 15 and zero cross detection circuit 16.Specifically, protect circuit using power line
12 prevent the entrance of the over-pressed signal on power line, and bandpass filter 13 realizes the barrier to power line 50Hz signals and makes broadband
Carrier signal two-way can pass through, and signal transformer 15 connect to receive and dispatch bandwidth carrier with broadband power line carrier controller 20
Data realize the complete physical isolation of power line and broadband power line carrier controller 20.
Broadband power interface circuit 10 is further included to be connect with power line interface 11 and broadband 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 to acquire the zero passage letter of 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 out, by the way of light-coupled isolation, broadband power line carrier controller 20 with power line is isolated, prevents electric power
Interference of the various interference to broadband power line carrier controller 20 on line improves the stabilization of broadband 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 all can be information transmission medium.Broadband electricity
The line of force refer to limited bandwidth between 2-30MHz, traffic rate more than 1Mbps power line carrier communication.Broadband 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
The abbreviation of Network（Hereinafter referred to as CAN）, be ISO International standardizations serial communication protocol.Fieldbus is nowadays automatic
One of hot spot of field technology development is known as the computer LAN of automatic field.Its appearance is distributed AC servo system system
Real-time, reliable data communication provides strong technical support between system realizes each node.CAN bus is that have communication speed
Rate is high, a kind of fieldbus for having formed the international standard easy to implement and various features such as cost performance height.
Broadband power line carrier controller 20 is connect respectively with broadband power interface circuit 10 and processor 30, for from
Broadband power interface circuit 10 receives bandwidth carrier data, it is demodulated and is sent to processor 30；And for from
The data that reason device 30 receives are modulated and power amplification and are sent to broadband power interface circuit 10；Broadband power line carrier
20 major function of controller is to carry out the modulation and demodulation of signal, and any mould that can complete modulation /demodulation function may be used
Block is realized, it is preferable that broadband power line carrier controller 20 can be developed at present for each of power line carrier communication
Carrier chip known in those skilled in the art, such as STMicw Electronics's public affairs may be used in the powerful carrier chip of kind
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 to control the converting transmission of the bandwidth carrier data transmission and CAN bus data；Play data
Exchange and control action.The processor 30 connection is used to indicate the first indicator light 31 of bandwidth carrier data mode, is used to indicate
Second indicator light 32 of CAN bus data mode and the third indicator light 33 for being used to indicate working condition.
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 bus data between device 50；On the one hand the data for receiving processor 3 are sent to CAN drivers 50, a side
The data that face receives CAN drivers 50 are sent to processor 30.It is public that those skilled in the art institute may be used in the CAN controller 40
The controller chip known, such as MCP2551, MCP2510 controller chip of SJA1000, Microchip company of NXP companies.
CAN drivers 50 are connect with CAN controller 40, for sending and receiving CAN bus data；For CAN controller 40
Interface is provided, it is differential to CAN bus to send and receive function.Grace intelligence Pu semiconductor may be used in it（NXP
Semiconductors, the separate semiconductor company set up by Philip）CAN drivers TJA1050, TJA1042 of exploitation etc..
It is direct current, and for broadband power line by AC conversion that power-switching circuit 60 is connect with 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 circuit 70 for common mode interference filtering, antistatic treatment, CAN protection circuit 70 respectively with CAN drivers
40 connect with CAN bus.It protects circuit 70 that can reduce interference by CAN, improves the Electro Magnetic Compatibility of CAN bus.
The utility model passes through the bandwidth carrier data on power line are electric by broadband power interface circuit 1, broadband
Line of force carrier controller, processor, CAN controller, CAN drivers and CAN protection circuits 7 are transmitted by CAN bus, realize broadband
The conversion of carrier data and CAN bus data, conversion is convenient and efficient, so that power-line carrier communication is able to bigger model
The popularization and application enclosed.
The above is only the preferred embodiment of the utility model only, and those skilled in the art know, is not departing from this
In the case of the spirit and scope of utility model, various changes or equivalent replacement can be carried out to these features and embodiment.Separately
Outside, it under the introduction of the utility model, can modify to adapt to particular situation and material to these features and embodiment
Without departing from the spirit and scope of the utility model.Therefore, the utility model is not by specific embodiment disclosed herein
Limitation, the embodiment fallen in the range of claims hereof belong to the scope of protection of the utility model.
Claims (6)
1. a kind of broadband power line and CAN bus converter, which is characterized in that including broadband power interface circuit（10）, it is wide
Band power-line carrier controller（20）, processor（30）, CAN controller（40）With CAN drivers（50）；
The broadband power interface circuit（10）Connect with power line, for send and receive bandpass filtering, interface protection, every
It is coupled from transformation and signal；
The broadband power line carrier controller（20）Respectively with the broadband power interface circuit（10）With the processor
（30）Connection, for from the broadband power interface circuit（10）Bandwidth carrier data are received, it is demodulated and is sent to institute
State processor（30）；And for from the processor（30）The data of reception are modulated and power amplification and are sent to institute
State broadband power interface circuit（10）；
The processor（30）For controlling the converting transmission of the bandwidth carrier data transmission and CAN bus 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 bus data；
The CAN drivers（50）With the CAN controller（40）Connection, for sending and receiving the CAN bus data.
2. broadband power line according to claim 1 and CAN bus converter, which is characterized in that further include and the electricity
The line of force connection for by AC conversion be direct current power-switching circuit（60）, and for the broadband power line carrier
Controller（20）, processor（30）, CAN controller（40）With CAN drivers（50）Power supply.
3. broadband power line according to claim 1 and CAN bus converter, which is characterized in that the broadband power line
Interface circuit（10）Including the power line interface being connect with the power line（11）, power line protection circuit（12）, bandpass filtering
Device（13）, amplitude limiter circuit（14）And signal transformer（15）.
4. broadband power line according to claim 3 and CAN bus converter power line width band carrier communication module, special
Sign is, the broadband power interface circuit（10）It further includes and the power line interface（11）And the broadband power line carries
Wave controller（20）Connect the zero cross detection circuit for detecting the power line zero crossing（16）.
5. broadband power line according to claim 1 and CAN bus converter, which is characterized in that further include and the CAN
Driver（50）The CAN protection circuits connected with the CAN bus（70）, the CAN protections circuit（70）For common mode interference
Filtering and antistatic treatment.
6. broadband power line according to claim 1 and CAN bus converter, which is characterized in that further include respectively with institute
State processor（30）Connection is used to indicate the first indicator light of bandwidth carrier data mode（31）, be used to indicate CAN bus data
Second indicator light of state（32）And it is used to indicate the third indicator light of working condition（33）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721313923.8U CN207490958U (en) | 2017-10-12 | 2017-10-12 | Broadband power line and CAN bus converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721313923.8U CN207490958U (en) | 2017-10-12 | 2017-10-12 | Broadband power line and CAN bus converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207490958U true CN207490958U (en) | 2018-06-12 |
Family
ID=62480093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721313923.8U Expired - Fee Related CN207490958U (en) | 2017-10-12 | 2017-10-12 | Broadband power line and CAN bus converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207490958U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111430008A (en) * | 2020-02-25 | 2020-07-17 | 广州七乐康药业连锁有限公司 | Medical data processing method and medical data processing system based on cloud platform |
-
2017
- 2017-10-12 CN CN201721313923.8U patent/CN207490958U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111430008A (en) * | 2020-02-25 | 2020-07-17 | 广州七乐康药业连锁有限公司 | Medical data processing method and medical data processing system based on cloud platform |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180612 Termination date: 20201012 |