CN206410281U - Carrier communication unit for fan coil controller - Google Patents
Carrier communication unit for fan coil controller Download PDFInfo
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- CN206410281U CN206410281U CN201621421987.5U CN201621421987U CN206410281U CN 206410281 U CN206410281 U CN 206410281U CN 201621421987 U CN201621421987 U CN 201621421987U CN 206410281 U CN206410281 U CN 206410281U
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Abstract
The utility model is a kind of carrier communication unit for fan coil controller, and its structure includes modem section, storage part, receiving portion, transmitting portion and filter-coupler circuit；It is characterized in that the first signal input/output terminal of described modem section is connected with the first signal input/output terminal of processing unit, the secondary signal input/output terminal of modem section is connected with storing the signal input/output terminal of part, the signal output part of modem section is connected with the signal input part of receiving portion, and the signal input part of modem section is connected with the signal output part of transmitting portion；The signal output part of receiving portion is connected with the signal input part of filter-coupler circuit；The signal output part of filter-coupler part is connected with the signal input part of transmitting portion；The power line interface of filter-coupler circuit is connected with low-voltage power line.Advantage：1）Remote control can be realized；2）Substantially reduce is influenceed by bursty interference；3）Really realize remote control and energy-saving and emission-reduction.
Description
Technical field
The utility model relates to a kind of carrier communication unit for fan coil controller, belong to Industry Control neck
Domain.
Background technology
The fan coil control panel of water-cooled central air-conditioning, be primarily adapted for use in the market main flow two pipe two-wire systems, two
Pipe three-wire system, four pipe two-wire system fan coils；Central air-conditioning is generally used for the fields such as Industry Control and common application, is large-scale
Application scenario, power and power consumption ratio be larger, cause enterprise and public service industry with electric energy consumption also than larger；Traditional
Controller of central air-conditioning fan coil, which is adopted, manually to be operated, and central air-conditioning temperature control human factor is relatively more,
Indoor temperature can not accomplish effective control, it is impossible to real effect for realizing energy-saving and emission-reduction.
Power-line carrier communication refers to use number using a kind of communication mode of power line transmission data, bandwidth carrier
Word multicarrier frequency multiplexing technique, multiple subcarriers are divided into by wider carrier frequency band, and mutually orthogonal height is loaded respectively
Frequency carrier wave is modulated to data, realizes multicarrier parallel communications, is greatly improved the speed of communication and the distance of communication, is
The preferred communication modes of water cooled central air conditioner control panel.
Utility model content
The utility model proposes a kind of carrier communication unit for fan coil controller, the purpose is to by electric power
Line width band carrier wave communication technology is applied in controller of central air-conditioning fan coil so that central air-conditioning realizes remote monitoring, very
Just realize energy-saving and emission-reduction.
Technical solution of the present utility model：A kind of carrier communication unit for fan coil controller, its structure
Including modem section, storage part, receiving portion, transmitting portion and filter-coupler circuit；It is characterized in that described modulation
First signal input/output terminal of demodulation part is connected with the first signal input/output terminal of processing unit, modem section
Secondary signal input/output terminal with store part signal input/output terminal be connected, the signal output part of modem section
It is connected with the signal input part of receiving portion, the signal input part of modem section and the signal output part phase of transmitting portion
Even；The signal output part of receiving portion is connected with the signal input part of filter-coupler circuit；The signal output of filter-coupler part
End is connected with the signal input part of transmitting portion；The power line interface of filter-coupler circuit is connected with low-voltage power line.
Advantage of the present utility model：
1）Power wire broadband carrier mechanics of communication is applied in controller of central air-conditioning fan coil, centering can be realized
Entreat the remote control of coil pipe of air-conditioner blower controller；
2）Bandwidth carrier traffic rate is high, and the transmission of data can be completed within the extremely short time, incident can be substantially reduced
Influenceed by bursty interference, even if a communication failure, can also be retransmitted rapidly, it is ensured that data are reliable；
3）By the relay function of bandwidth carrier mechanics of communication, the transmission distance of fan coil controller can be greatly improved
From really realizing remote control and energy-saving and emission-reduction.
Brief description of the drawings
Accompanying drawing 1 is the structural representation of the fan coil controller based on power wire broadband carrier mechanics of communication.
Accompanying drawing 2 is carrier communication unit and processing unit associated diagram.
Accompanying drawing 3 is processing unit and control unit associated diagram.
Accompanying drawing 4 is carrier communication cellular system block diagram.
Accompanying drawing 5 is bandpass filter and its amplitude limiter circuit.
Accompanying drawing 6 is filter-coupler circuit.
Embodiment
A kind of fan coil controller based on power wire broadband carrier mechanics of communication, its structure includes power subsystem, control
Unit processed, processing unit, carrier communication unit, man-machine interaction unit；Wherein, the first output end and control unit of power subsystem
Power input be connected, the second output end of power subsystem is connected with the power input of processing unit, the of power subsystem
Three output ends are connected with the power input of carrier communication unit；First signal input/output terminal of processing unit is led to carrier wave
The the first signal input/output terminal for interrogating unit is connected, the secondary signal input/output terminal of processing unit and man-machine interaction unit
Signal input/output terminal is connected, and the signal output part of processing unit is connected with the signal input part of control unit.
Described power subsystem includes ACDC Power converts and its interlock circuit, and ACDC is become using isolation flyback power supply
Change, ac input voltage scope is 176V-264V；DC output voltages are 12V, and output current is 250mA；ACDC it is primary with it is secondary every
Ionization voltage is 2500V.
The signal input part of described control unit includes HT input ports, CL input ports, HF input ports, MF inputs
Port, LF input ports, HT input ports, CL input ports, HF input ports, MF input ports, LF input ports respectively with
HT output ports, CL output ports, HF output ports, MF output ports, LF output ports on processing unit signal output part
Correspondence connects；The HT input ports, CL input ports, HF input ports, MF input ports, LF input ports are distributed in control
In 5 control relays in unit, the folding of 5 control relays is controlled in real time by processing unit, 5 control relays
The output state that device is controlled includes freezing, heat, high speed winds, middling speed wind and low velocity wind etc., is embodied in central air conditioner fan disk
The output state of tube controller mainly includes freezing, heat, high speed winds, middling speed wind and low velocity wind etc..
Also include peripheral circuit in described control unit.
Described processing unit includes main MCU and its peripheral circuit, as shown in Figures 2 and 3, the signal output of processing unit
The signal input with control unit is held to be connected；First signal input/output terminal of processing unit and the signal of carrier communication unit
Input/output terminal is connected；The environmental variances such as the main collecting temperature of processing unit, by carrier communication unit be sent to concentrator and
Main software, main software and concentrator can set corresponding control parameter, then issue control command by carrier communication unit
To processing unit, processing unit is finally controlled to control unit again, so as to realize the refrigeration to central air-conditioning, heat and wind
The control functions such as speed.
Described man-machine interaction unit includes the man-machine interactive components, liquid crystal display panel side such as liquid crystal display panel, button
Just the parameter such as user's real time inspection temperature, wind speed and pattern, button ensure that user also can carry out one to liquid crystal display panel
The relatively low parameter setting of a little priority ratios.
Described carrier communication unit includes modem section, storage part, receiving portion, transmitting portion and filtering coupling
Close circuit；Wherein, the first signal input/output terminal of modem section and the first signal input/output terminal of processing unit
It is connected, the secondary signal input/output terminal of modem section is connected with storing the signal input/output terminal of part, modulatedemodulate
The signal output part of part is adjusted to be connected with the signal input part of receiving portion, the signal input part and sending part of modem section
The signal output part divided is connected；The signal output part of receiving portion is connected with the signal input part of filter-coupler circuit；Filter coupling
The signal output part for closing circuit is connected with the signal input part of transmitting portion；The power line interface and low tension of filter-coupler circuit
The line of force is connected.
First signal input/output terminal of the modem section includes RXD output ports, TXD input ports, RST
Input port, EVENT input ports；Wherein RXD output ports and RXD in processing unit the first signal input/output terminal is defeated
Inbound port is connected, and TXD input ports are connected with the TXD output ports in processing unit the first signal input/output terminal, and RST is defeated
Inbound port is connected with the RST output ports in processing unit the first signal input/output terminal, and EVENT input ports are single with processing
EVENT output ports in first first signal input/output terminal are connected.
The modem section frequency bandwidth is 2M-12MHZ, using the DMT modulation systems based on OFDM, different from passing
The OFDM modulation systems of system, the signal to noise ratio of all subchannels is instantaneously calculated using adaptive carrier algorithm, according to its result dynamic
Add and load for each channel, while flashy noise is distributed and voluntarily study power network interference budgetary estimate, effectively rule under prediction
Interference is kept away, optimizes carrier-quality, and fundamentally reduce the power consumption of bandwidth carrier chip.
The storage part point includes storage chip and its peripheral circuit, is mainly used to storage system software and partial data.
The transmitting portion includes circuit driving amplifier and its peripheral circuit is constituted, and is put using the driving of THS6214 circuits
Big device.
The receiving portion includes bandpass filter and amplitude limiter circuit, and bandpass filter only allows useful bandwidth carrier to believe
Number pass through, amplitude limiter circuit filtering external overvoltage signal prevents external disturbance from causing to damage to modem module.
The bandpass filter and its amplitude limiter circuit are as shown in figure 5, bandwidth carrier receiving circuit is by the difference of outside input
Signal, by bandpass filter, the AFE(analog front end) for being input to MCU is modulated demodulation；The input pin of chip adds double guarantors
Protect diode circuit D10 diodes and D14 diodes, C1 electric capacity, C2 electric capacity and chip internal composition high-pass filter；Broadband is carried
Ripple receiving circuit is 2M-12M bandpass filter, wherein being 5 rank 2M high-pass filter, 3 rank 12M low pass filter.
The filter-coupler circuit includes filter circuit, termination power, signal transformer, high-pass filter, protection circuit
And power line interface, filter-coupler circuit is as shown in fig. 6, filter-coupler circuit is used for low-voltage power line and transmitting portion and reception
Signal transmission between part, power line interface, which is received, passes sequentially through protection circuit, high-pass filter, signal transformation after signal
Device, protection circuit filtering external overvoltage signal.The filter-coupler circuit of compares figure 6, C11 electric capacity is Y1,4.7nF safety electricity
Hold, form high-pass filter, high-pass filter is to the barriers of low-voltage power line 50Hz signals and allows broadband carrier signal double
To passing through；TVS pipe D1 is protected, to the high impulse interference on suppression circuit line；T1 signal transformers, the curve of frequency response exists
0.5MHZ to 12MHZ frequency band attenuation is less than 1dB, T1 signal transformer transmitting portion interfaces and receiving portion interface and signal
Transformer, which is connected, carries out the transmitting-receiving of signal and data.
A kind of fan coil controller based on power wire broadband carrier mechanics of communication is communicated by power wire broadband carrier
Technology so that controller of central air-conditioning fan coil realizes remote control function, and power wire broadband carrier communication can be in electricity
High-speed transfer data signal in the line of force, is easy to collection signal data and process signal data；Power wire broadband carrier communication has
Multilevel relay function, can greatly improve the communication distance of carrier wave, really realize remote control, in a word, by one kind based on electricity
The fan coil controller of power line bandwidth carrier mechanics of communication realizes effect of energy-saving and emission-reduction.
Claims (6)
1. for the carrier communication unit of fan coil controller, it is characterized in that including modem section, storage part, receiving
Partly, transmitting portion and filter-coupler circuit；It is characterized in that the first signal input/output terminal of described modem section with
First signal input/output terminal of processing unit is connected, secondary signal input/output terminal and the storage part of modem section
Signal input/output terminal be connected, the signal output part of modem section is connected with the signal input part of receiving portion, modulate
The signal input part of demodulation part is connected with the signal output part of transmitting portion；The signal output part and filter-coupler of receiving portion
The signal input part of circuit is connected；The signal output part of filter-coupler part is connected with the signal input part of transmitting portion；Filtering
The power line interface of termination power is connected with low-voltage power line.
2. the carrier communication unit according to claim 1 for fan coil controller, it is characterized in that the modulatedemodulate
Adjusting the first signal input/output terminal of part includes RXD output ports, TXD input ports, RST input ports, EVENT inputs
Port；Wherein RXD output ports are connected with the RXD input ports in processing unit the first signal input/output terminal, TXD inputs
Port is connected with the TXD output ports in processing unit the first signal input/output terminal, RST input ports and processing unit the
RST output ports in one signal input/output terminal are connected, EVENT input ports and processing unit the first signal input/output
EVENT output ports in end are connected.
3. the carrier communication unit according to claim 1 for fan coil controller, it is characterized in that the acceptance division
Dividing includes bandpass filter and amplitude limiter circuit, and bandpass filter only allows useful broadband carrier signal to pass through, amplitude limiter circuit mistake
The outside over-pressed signal of filter, prevents external disturbance from causing to damage to modem module.
4. the carrier communication unit according to claim 1 for fan coil controller, it is characterized in that described filtering
Termination power includes filter circuit, termination power, signal transformer, high-pass filter, protection circuit and power line interface；Filtering
The signal transmission that termination power is used between low-voltage power line and transmitting portion and receiving portion, power line interface receives signal
After pass sequentially through protection circuit, high-pass filter, signal transformer, protection circuit filtering external overvoltage signal, high-pass filter
Low-voltage power line 50Hz signals are obstructed and broadband carrier signal is passed through with two-way, transmitting portion interface is tapped with acceptance division
Mouth is connected with signal transformer carries out the transmitting-receiving of signal and data.
5. the carrier communication unit according to claim 3 for fan coil controller, it is characterized in that described band logical
Bandwidth carrier receiving circuit in wave filter and its amplitude limiter circuit is defeated by bandpass filter by the differential signal of outside input
The AFE(analog front end) entered to MCU is modulated demodulation；The input pin of chip adds double protection diode circuits, double poles of protection two
D10 diodes and D14 diodes in pipe circuit, C1 electric capacity, C2 electric capacity and chip internal composition high-pass filter；Bandwidth carrier
Receiving circuit is 2M-12M bandpass filter, wherein being 5 rank 2M high-pass filter, 3 rank 12M low pass filter.
6. the carrier communication unit according to claim 4 for fan coil controller, it is characterized in that described filtering
The signal transmission that termination power is used between low-voltage power line and transmitting portion and receiving portion, power line interface receives signal
After pass sequentially through protection circuit, high-pass filter, signal transformer, protection circuit filtering external overvoltage signal；Filter-coupler electricity
C11 electric capacity in road is Y1, and 4.7nF safety electric capacity forms high-pass filter, and high-pass filter is believed low-voltage power line 50Hz
Number barrier and make broadband carrier signal is two-way to pass through；D1 protection TVS pipes in protection circuit, to the height on suppression circuit line
Impulse disturbances；T1 signal transformers in signal transformer, the frequency band attenuation of the curve of frequency response in 0.5MHZ to 12MHZ
Less than 1dB, T1 signal transformer transmitting portion interfaces are connected with receiving portion interface with signal transformer carries out signal and data
Transmitting-receiving.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621421987.5U CN206410281U (en) | 2016-12-23 | 2016-12-23 | Carrier communication unit for fan coil controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621421987.5U CN206410281U (en) | 2016-12-23 | 2016-12-23 | Carrier communication unit for fan coil controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206410281U true CN206410281U (en) | 2017-08-15 |
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ID=59551484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621421987.5U Active CN206410281U (en) | 2016-12-23 | 2016-12-23 | Carrier communication unit for fan coil controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206410281U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108426326A (en) * | 2018-05-14 | 2018-08-21 | 北方工业大学 | Communication circuit of thing networking photocatalyst air purification device |
| CN112751574A (en) * | 2019-10-31 | 2021-05-04 | 上海汽车集团股份有限公司 | Differential signal communication isolation circuit and system |
-
2016
- 2016-12-23 CN CN201621421987.5U patent/CN206410281U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108426326A (en) * | 2018-05-14 | 2018-08-21 | 北方工业大学 | Communication circuit of thing networking photocatalyst air purification device |
| CN112751574A (en) * | 2019-10-31 | 2021-05-04 | 上海汽车集团股份有限公司 | Differential signal communication isolation circuit and system |
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