CN206865454U - A kind of electric line carrier communication control system - Google Patents
A kind of electric line carrier communication control system Download PDFInfo
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- CN206865454U CN206865454U CN201720249318.2U CN201720249318U CN206865454U CN 206865454 U CN206865454 U CN 206865454U CN 201720249318 U CN201720249318 U CN 201720249318U CN 206865454 U CN206865454 U CN 206865454U
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Abstract
A kind of electric line carrier communication control system of the utility model, including：Control main frame and multiple terminal control units.Its exterior power network delivers the power to internal powerline power by control main frame, is supplied to multiple terminal control units and the electrical appliance controlled.The carrier signal of control instruction is coupled on electrical bus by control main frame, and electrical bus uploads transmission of electricity can be with the mixed signal of carrier signal；Terminal control unit receives and response control instruction, completes the action specified, and carry out communication instruction passback on demand.Especially suitable for needing the intelligence control system of centrally connected power supply, such as indicate building, the Landscape Lighting at scenic spot, the occasion such as intelligent road-lamp, stadium lighting, airfield runway dedicated illumination, the illumination of stage special efficacy, reading intelligent agriculture, Industry Control.
Description
Technical field
A kind of electric line carrier communication control system of the utility model, more particularly to needs the intelligent control of centrally connected power supply to use
Electric system.
Background technology
Power line carrier, PLC (Power Line Communication, PLC) is to be used as information transfer matchmaker by the use of power line
Be situated between a kind of specific communication mode carried out data transmission.The sharpest edges of the technology are to rely on power line network, it is not necessary to again
Wiring, have the characteristics that construction, operating cost are low.
Electric line carrier communication has apparent advantage, but for many years except power network meter reading, telephone network, part road
The not large-scale application outside having applied such as lamp.Reason is a lot, and technical sophistication cost is high, network environment serious interference,
System is unreliable, and only controlled network has involved, power network meter reading described above still also not popularization.
The content of the invention
It is to provide a kind of simple and reliable electricity with the high deficiency of cost, the purpose of this utility model for prior art is complicated
Line of force carrier communication control system, to solve application specific integrated circuit cost height, technical sophistication, the problems such as Difficulty.
A kind of electric line carrier communication control system described in the utility model, it is characterised in that including：Control main frame and
Multiple terminal control units.Control main frame is connected with its exterior power network, and electric power is provided for internal system equipment.Carrier signal modulation
It is output to after control instruction by control main frame on internal powerline power, the mixed signal of control main frame output electric energy and carrier signal.
Terminal control unit receives carrier signal and demodulates control instruction, completes command function.Terminal control unit replys communication if desired
Data-modulated carrier signal, it is sent on internal powerline power and returns to control main frame, the passback of control main frame receiving terminal controller
Carrier signal, obtained after demodulation reply data command.
The control instruction carrier signal that control main frame is sent is the signal of (ASK) amplitude modulation(PAM).Terminal control unit is sent back
It is (FSK) warbled signal to pass communication signal.
Low-power consumption choke circuit is used in system, to reduce the decay to communicating carrier wave, realizing is not increasing excessive electricity
Power reaches highly reliable communication, the purpose of far distance controlled in the case of consuming.
In order to reduce the decay that terminal control unit sends control data, terminal control unit only is needing to send carrier data
Moment connects power line, and communication disconnects after terminating.
Frequency range of the communication carrier wave selection of control main frame and terminal control unit 20 to 500KHz, it is desirable to communication speed
The high carrier frequency of fast selection, the communication line of long range can select to compare low carrier frequency, and communication carrier frequency is according to need
Ask compromise to select, control main frame and the preferred identical carrier frequency of terminal control unit, can also select different carrier frequencies according to demand
Rate.
The amplitude-modulated carrier signal amplitude that control main frame is sent in 5V between 50V, preferably 24V.
The fm carrier signal amplitude 3V to 12V that terminal control unit is sent, preferably using 3.3V or 5V, emission current one
As be no more than 500mA.The communication signal can that prior art control main frame receives millivolt level reliably receives demodulation, but is no lack of
Circuit can be optimized so as to reach higher performance.
Effect of the present utility model is that the control system can realize half-duplex, full duplex using two-way carrier signal
Transmission of control signals, system communication distance reach 2 kilometers, and terminal control unit quantity can reach hundreds of in bus, terminal control
Device quiescent dissipation processed can accomplish milliwatt.
Brief description of the drawings
Specific embodiment of the utility model is shown in the drawings, and it is specific to combine preferred embodiment in the description that follows
Explanation.
Fig. 1 shows a kind of electric line carrier communication control system connection diagram of the utility model.
Fig. 2 shows control main frame theory diagram of the present utility model.
Fig. 3 shows terminal control unit theory diagram of the present utility model.
Fig. 4 shows control main frame electrical schematic diagram of the present utility model.
Fig. 5 shows terminal control unit electrical schematic diagram of the present utility model.
Embodiment
Fig. 1 is shown using a kind of electric line carrier communication control system connection diagram of the utility model：Including control
Main frame and several terminal control units being connected on electrical bus, its exterior power network are delivered the power to by control main frame
Internal powerline power is supplied to multiple terminal control units and the electrical appliance controlled.
Fig. 2 shows control main frame theory diagram of the present utility model：Control main frame includes its exterior power network 1, main frame
Trap 2, equipment blocking power supply 3, amplitude modulation radiating circuit 4, FM reception circuit 5, host microcontroller 6, communication interface 7.
Fig. 3 shows terminal control unit theory diagram of the present utility model：Terminal control unit include AM receiving circuitry 8,
It is FM transmission switch 9, modulating emission circuit 10, terminal control unit power supply 11, terminal microcontroller 12, terminal trap 13, logical
Communication interface 14, electrical appliance 15.
The connection its exterior of control main frame shown in Fig. 2 power network 1, equipment blocking power supply 3 connects electricity before main frame trap 2
Net, power supply is provided for other circuits in equipment, amplitude modulation radiating circuit 4 and FM reception electricity are accessed after main frame trap 2
Road 5, host microcontroller 6 are communicated by communication interface 7 and Upper system, and host microcontroller 6 controls amplitude modulation transmitting electricity
Road 4, the carrier signal through ovennodulation is exported when needing to send control instruction, host microcontroller 6 connects from FM reception circuit 5
Receive the data-signal after demodulation.
Terminal control unit is connected on internal powerline power shown in Fig. 3, is connected and is adjusted after internal powerline power access terminal controller
Width receiving circuit 8, the carrier signal transmitted in bus is received, sends terminal microcontroller 12 after demodulation to.Terminal microcontroller
12 control FM transmission switches 9 and modulating emission circuit 10；Modulating emission circuit 10 is total by the access electric power of FM transmission switch 9
Line.When needing to launch fm carrier signal, microcontroller 12 first opens FM transmission switch 9, then controls modulating emission circuit
10, electrical bus is sent to after the data modulation that will be sent, after data are sent completely, disconnects FM transmission switch 9.Internal electricity
The line of force is by the output power of terminal trap 13 to electrical appliance 15.Terminal supplying power 11 be connected to terminal trap and electrical appliance it
Between, the voltage of electrical bus is transformed into other circuit required voltages.Microcontroller 12 passes through logical according to the instruction received
Communication interface 14 controls electrical appliance 15 to complete corresponding function.
Control main frame electrical schematic diagram shown in Fig. 4, its exterior power network after LC traps by accessing internal powerline power.Frequency
Generator produces the fundamental frequency signal of amplitude-modulated signal, and signal amplification driver is controlled by host microcontroller, the fundamental frequency signal is put
By transformer coupled on internal powerline power after big.LC bandpass filterings are passed through by the fm carrier signal that terminal control unit is sent
Device and isolation coupling transformer, couple a signal to FM reception circuit, and control instruction transmission is parsed into by FM reception circuit
Parsed to host microcontroller.Upload control network is connected the complete control system of composition by communication interface with host microcontroller
System.
Terminal control unit electrical schematic diagram shown in Fig. 5, it will believe by electric capacity after internal system power line access terminal control unit
Number be coupled to and to receive LC wave filters, after filtering after signal enter AM receiving circuitry, the instruction after parsing sends terminal to
Microcontroller, terminal control unit analysis instruction content is sent to electrical appliance or directly control electrical appliance completes corresponding actions.If
Needing passback to communicate, be first turned on frequency modulation output switch, control controlled frequency generator sends FM signal according to passback instruction,
By signal amplification driver, export to coupling transformer, couple a signal to internal powerline power.Internal powerline power passes through wave arrestment
Device exports electric energy and used to electrical appliance.
A kind of embodiment of electric line carrier communication control system of the utility model is described in detail above, ability
Field technique personnel should be understood that the circuit signal of the embodiment description and principle are not all possible side of the present utility model
Formula, in the case of without departing substantially from the utility model purport, those skilled in the art can make some modifications and change to the present embodiment
Enter, these modification and improvement also fall into the scope of the utility model claims.To described in utility model be used for illustrate this
The change of the FMAM circuit of control system is replaced and is no more than the scope of protection of the utility model.
Claims (6)
- A kind of 1. electric line carrier communication control system, it is characterised in that including：Control main frame and multiple terminal control units；Described control main frame includes external electrical network input, main frame trap, equipment blocking power supply, amplitude modulation radiating circuit, frequency modulation Receiving circuit, host microcontroller and communication interface；Described terminal control unit includes AM receiving circuitry, FM transmission switch, modulating emission circuit, terminal control unit electricity Source, terminal microcontroller, terminal trap, communication interface and electrical appliance；Described control main frame output electric energy and carrier wave mixed signal, terminal control unit reception carrier signal demodulate control and referred to Order；Terminal control unit replys communication data modulation carrier signal, is sent on internal powerline power and returns to control main frame, control master The carrier signal of machine receiving terminal controller passback.
- A kind of 2. electric line carrier communication control system according to claim 1, it is characterised in that described control system It is connected with external electrical network by trap.
- A kind of 3. electric line carrier communication control system according to claim 1, it is characterised in that described terminal control Device is connected with electrical appliance by trap.
- A kind of 4. electric line carrier communication control system according to claim 1, it is characterised in that described control main frame The control instruction carrier signal of transmission is amplitude modulation(PAM) (ASK) signal.
- A kind of 5. electric line carrier communication control system according to claim 1, it is characterised in that described terminal control Device sends the signal that passback communication signal is frequency modulation(PFM) (FSK).
- A kind of 6. electric line carrier communication control system according to claim 1, it is characterised in that described control main frame With the communication carrier frequency of terminal control unit 20KHz to 500KHz scope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720249318.2U CN206865454U (en) | 2017-03-10 | 2017-03-10 | A kind of electric line carrier communication control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720249318.2U CN206865454U (en) | 2017-03-10 | 2017-03-10 | A kind of electric line carrier communication control system |
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| Publication Number | Publication Date |
|---|---|
| CN206865454U true CN206865454U (en) | 2018-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720249318.2U Expired - Fee Related CN206865454U (en) | 2017-03-10 | 2017-03-10 | A kind of electric line carrier communication control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114844529A (en) * | 2022-04-12 | 2022-08-02 | 鼎隆航空科技有限公司 | Power line communication circuit and system based on solid-state power controller |
-
2017
- 2017-03-10 CN CN201720249318.2U patent/CN206865454U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114844529A (en) * | 2022-04-12 | 2022-08-02 | 鼎隆航空科技有限公司 | Power line communication circuit and system based on solid-state power controller |
| CN114844529B (en) * | 2022-04-12 | 2024-02-23 | 鼎隆航空科技有限公司 | Power line communication circuit and system based on solid-state power controller |
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| 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: 20180109 |