CN108345242A - Ripple control receiving circuit and remote-control system - Google Patents
Ripple control receiving circuit and remote-control system Download PDFInfo
- Publication number
- CN108345242A CN108345242A CN201810030617.6A CN201810030617A CN108345242A CN 108345242 A CN108345242 A CN 108345242A CN 201810030617 A CN201810030617 A CN 201810030617A CN 108345242 A CN108345242 A CN 108345242A
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- China
- Prior art keywords
- ripple control
- unit
- control signals
- receiving circuit
- ripple
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
Abstract
The present invention provides a kind of ripple control receiving circuit and remote-control systems, wherein ripple control receiving circuit includes：Partial pressure unit couples external power, for dividing external reference voltages, generates voltage division signal；Crystal oscillation unit, for generating ripple control signals；Power supply unit, for setting power supply as operating mode；Filter, couple partial pressure unit, crystal oscillation unit and power supply unit, filter is set to be in the track-bound of ripple control signals work for receiving voltage division signal, simultaneously, the ripple control signals of receiving crystal oscillating unit, under the operating mode of power supply unit, exported after ripple control signals are converted.The present invention captures the ripple control signals of specific frequency using ripple control receiving circuit, has many advantages, such as that data grabber speed is fast, communication success rate is high, strong antijamming capability.Meanwhile because of release microcontroller calculation resources, to keep system overall operation more reliable.
Description
Technical field
The present invention relates to power electronics field of communication technology, more particularly to a kind of ripple control receiving circuit and ripple control
System.
Background technology
Remote-control system (Ripple Control Centre) mainly has deployment to make in Europe and some African countries
With, be mainly used for company of power office to ammeter rate switch control, the Street lamps control in entire city, residential households water heater
The occasions such as control.For example, when hydroelectric generation and diesel generation, the cost of power generation is again different, and electricity price is also different, it is also desirable to
It is switched over by remote-control system.The time span on the daytime in summer and the daytime in winter is different, passes through ripple control
System carries out corresponding control to the street lamp of whole city.
Ripple control reception technique principle is at present：Network voltage is depressured and filters by front end modulate circuit, is input to
Chip Microcomputer A/D nozzle.Microcontroller captures the signal of specific frequency by FFT software algorithms.And the microcontroller in ammeter needs reality
It now measures, local RS232 communications and protocol analysis, LCD display controls, data storage control, on-off model input and output control
The functions such as system, along with the software function of operation crawl ripple signal, whole system is in critical condition, according to existing ripple
Technology is controlled and received, is easy to that ripple signal crawl is caused to lose and electric quantity metering loss.
Invention content
A kind of ripple control receiving circuit of present invention offer and remote-control system, solve the problems, such as existing above-mentioned.
To solve the above problems, the embodiment of the present invention provides a kind of ripple control receiving circuit, including
Partial pressure unit couples external power, for dividing external reference voltages, generates voltage division signal；
Crystal oscillation unit, for generating ripple control signals；
Power supply unit, for setting power supply as operating mode；
Filter, coupling partial pressure unit, crystal oscillation unit and power supply unit, makes filter for receiving voltage division signal
In track-bound in ripple control signals work, meanwhile, the ripple control signals of receiving crystal oscillating unit, in power supply list
Under the operating mode of member, exported after ripple control signals are converted.
As an implementation, further include the harmonic filtration unit being set between partial pressure unit and filter, it is described humorous
Wave filter element includes：
4 subharmonic filtering modules, the voltage division signal for receiving partial pressure unit carry out voltage division signal the mistake of 4 subharmonic
Filter；
5 subharmonic filtering modules, the voltage division signal for receiving partial pressure unit carry out voltage division signal the mistake of 5 subharmonic
Filter；And
The spuious harmonic filtration module of high frequency, the voltage division signal for receiving partial pressure unit carry out spuious height to voltage division signal
Frequency harmonic filtration.
As an implementation, further include the isolation coupling unit being set between harmonic filtration unit and filter.
As an implementation, further include ripple control signals amplitude adjusting elements, filter is coupled, for adjusting line
The amplitude of wave control signal.
As an implementation, further include reference voltage signal unit, the reference voltage signal unit is set to filtering
Between device and microcontroller, a reference voltage signal is generated for dividing, to make ripple control signals input microcontroller.
As an implementation, the model LTC1060CN of the filter, using 4 rank bandpass filtering patterns.
The embodiment of the present invention also provides a kind of remote-control system, including central control equipment, local control device, transmission
Machine, injection device and receiver, the receiver includes the ripple control receiving circuit described in above-mentioned any one, in
It entreats control device to generate control encoded signal, power frequency is injected by transmitter and injection device again by the amplification of local control device
On power grid, the ripple control receiving circuit of receiver is filtered the full range signal of power grid from common frequency power network, to extract
The ripple control signals for going out specific frequency issue microcontroller and are decoded processing.
The advantageous effect of the present invention compared with the prior art is：The ripple control of specific frequency is captured using hardware circuit
Signal processed has many advantages, such as that data grabber speed is fast, communication success rate is high, strong antijamming capability.Meanwhile because release microcontroller
Calculation resources, to keep system overall operation more reliable.
Description of the drawings
Fig. 1 is the module connection figure of the ripple control receiving circuit of the present invention；
Fig. 2 is the circuit diagram of the ripple control receiving circuit of the present invention；
Fig. 3 is the module connection figure of the remote-control system of the present invention.
Attached drawing marks：1, partial pressure unit；2, crystal oscillation unit；3, power supply unit；4, filter；5, harmonic filtration list
Member；51,4 subharmonic filtering module；52,5 subharmonic filtering module；53, the spuious harmonic filtration module of high frequency；6, isolation coupling list
Member；7, signal amplitude adjusts unit；8, reference voltage signal unit；9, microcontroller；10, central control equipment；11, local control
Equipment；12, transmitter；13, injection device；14, receiver.
Specific implementation mode
Below in conjunction with attached drawing, the technical characteristic and advantage above-mentioned and other to the present invention are clearly and completely described,
Obviously, described embodiment is only the section Example of the present invention, rather than whole embodiments.
As shown in Figure 1, a kind of ripple control receiving circuit, mainly extracts ripple control signals from power grid full frequency band
Out, and the progress protocol analysis of microcontroller 9 is sent to.Mainly include partial pressure unit 1, crystal oscillation unit 2, power supply unit 3 with
And filter 4, partial pressure unit 1 couple external power, for dividing external reference voltages, generate voltage division signal；Crystal oscillation
Unit 2, for generating ripple control signals；Power supply unit 3, for setting power supply as operating mode；Filter 4, coupling
Partial pressure unit 1, crystal oscillation unit 2 and power supply unit 3 make filter 4 be in ripple control letter for receiving voltage division signal
Number work track-bound in, meanwhile, the ripple control signals of receiving crystal oscillating unit 2, in the operating mode of power supply unit 3
Under, it is exported after ripple control signals are converted.
As shown in Fig. 2, specifically, in the present embodiment, partial pressure unit 1 includes the resistance R1-R7 being sequentially connected in series, and in electricity
Voltage division signal is generated between resistance R5 and resistance R6, external power is alternating current 220V, and voltage division signal 16.5V is mainly in view of communication
Effect, the effect of partial pressure unit 1 are to try to that ripple control signals is allowed to be operated in bandwidth-limited circuit track to track-bound, to the greatest extent
Amount reduces the decaying of ripple control signals.
In the present embodiment, the model LTC1060CN of filter 4, using 4 rank bandpass filtering patterns.Crystal oscillation list
Member 2 couples the 10th pin and the 11st pin of filter 4, and power supply unit 3 couples the 12nd pin of filter 4.Crystal oscillation list
Member 2 generates the ripple control signals that 21.66KHZ is sine wave, and it is 100 that power supply unit 3, which selects 1/2 power supply,:1 pattern.
The centre frequency that filter 4 exports is the 1/100 of CLOCK IN, that is, 216.66HZ.Gain amplification factor is in centre frequency
Place is maximum, decays rapidly after frequency shift (FS) central point, can prevent 5 order harmonic components (250Hz) to sampled signal in this way
Influence, and meet standard and require frequency when be more than ± 15%, receiver akinesia.
In another embodiment, further include the harmonic filtration unit 5 being set between partial pressure unit 1 and filter 4, harmonic wave mistake
It filters unit 5 and includes 4 subharmonic filtering modules 51,5 subharmonic filtering modules 52 and the spuious harmonic filtration module 53 of high frequency, because
The ripple control signals frequency that be finally transmitted to microcontroller 9 is 216.66HZ, with 4 subharmonic 200HZ and 5 subharmonic 250HZ
Very close to therefore, 4 subharmonic filtering modules 51 carry out voltage division signal the filtering of 4 subharmonic, and 5 subharmonic filtering modules 52 are right
Voltage division signal carries out the filtering of 5 subharmonic and the spuious harmonic filtration module 53 of high frequency carries out spuious harmonic high frequency to voltage division signal
Wave filters.4 subharmonic filtering modules 51,5 subharmonic filtering modules 52 and the spuious harmonic filtration module of high frequency 53 are all made of electricity
Appearance is filtered, respectively capacitance C1, capacitance C2, capacitance C3.
In another embodiment, further include the isolation coupling unit 6 being set between harmonic filtration unit 5 and filter 4.Every
It is capacitance C4 from coupling unit 6, mainly plays separated by direct communication coupling, and prevents front end AC circuit and DC filtering electricity
Road influences each other.Capacitance C4 is CBB electric capacity, nonpolarity.
In another embodiment, further include ripple control signals amplitude adjusting elements 7, filter 4 is coupled, for adjusting line
The amplitude of wave control signal, so as to controlling filter 4 output voltage 4 output end peripheral circuit of filter working range it
It is interior.Ripple control signals amplitude adjusting elements 7 are resistance R8.
4 output end of filter further includes reference voltage signal unit 8, and reference voltage signal unit 8 is set to filter 4 and list
Between piece machine 9, a reference voltage signal is generated for dividing, to make ripple control signals input microcontroller 9.In this implementation
In example, reference voltage signal unit 8 couples the 3.3V voltage signals of external power, and the benchmark of 1.24V is generated by resistance R18-R21
Voltage signal is conducive to the integrality of ripple control signals, reduces the distortion of waveform.
As shown in figure 3, a kind of remote-control system, including central control equipment 10, local control device 11, transmitter
12, injection device 13 and receiver 14, receiver 14 include above-mentioned ripple control receiving circuit, pass through central control equipment
10 generate control encoded signal, inject power frequency electric by transmitter 12 and injection device 13 again by the amplification of local control device 11
On the net, the ripple control receiving circuit of receiver 14 is filtered the full range signal of power grid from common frequency power network, to extract
The ripple control signals for going out specific frequency issue microcontroller 9 and are decoded processing.
The present invention captures the ripple control signals of specific frequency using hardware circuit, has data grabber speed fast, logical
The advantages that letter success rate is high, strong antijamming capability.216.66HZ ripple control signals are sent to fracture in 9 external hardware of microcontroller
Afterwards, microcontroller 9 need to capture rising edge or failing edge down trigger, greatly alleviate the task of microcontroller 9.Therefore,
9 calculation resources of microcontroller are discharged, to keep system overall operation more reliable.
Particular embodiments described above has carried out further the purpose of the present invention, technical solution and advantageous effect
It is described in detail, it should be understood that the above is only a specific embodiment of the present invention, the protection being not intended to limit the present invention
Range.It particularly points out, to those skilled in the art, all within the spirits and principles of the present invention, that is done any repaiies
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of ripple control receiving circuit, which is characterized in that including：
Partial pressure unit couples external power, for dividing external reference voltages, generates voltage division signal；
Crystal oscillation unit, for generating ripple control signals；
Power supply unit, for setting power supply as operating mode；
Filter, coupling partial pressure unit, crystal oscillation unit and power supply unit, makes filter be in for receiving voltage division signal
In the track-bound of ripple control signals work, meanwhile, the ripple control signals of receiving crystal oscillating unit, in power supply unit
Under operating mode, exported after ripple control signals are converted.
2. ripple control receiving circuit according to claim 1, which is characterized in that further include being set to partial pressure unit and filtering
Harmonic filtration unit between device, the harmonic filtration unit include：
4 subharmonic filtering modules, the voltage division signal for receiving partial pressure unit carry out voltage division signal the filtering of 4 subharmonic；
5 subharmonic filtering modules, the voltage division signal for receiving partial pressure unit carry out voltage division signal the filtering of 5 subharmonic；With
And
The spuious harmonic filtration module of high frequency, the voltage division signal for receiving partial pressure unit carry out spuious harmonic high frequency to voltage division signal
Wave filters.
3. ripple control receiving circuit according to claim 2, which is characterized in that further include be set to harmonic filtration unit and
Isolation coupling unit between filter.
4. ripple control receiving circuit according to claim 2, which is characterized in that further include ripple control signals amplitude tune
Unit is saved, filter, the amplitude for adjusting ripple control signals are coupled.
5. ripple control receiving circuit according to claim 1, which is characterized in that further include reference voltage signal unit,
The reference voltage signal unit is set between filter and microcontroller, and a reference voltage signal is generated for dividing, to
Ripple control signals are made to input microcontroller.
6. ripple control receiving circuit according to claim 1, which is characterized in that the model of the filter
LTC1060CN, using 4 rank bandpass filtering patterns.
7. a kind of remote-control system, which is characterized in that set including central control equipment, local control device, transmitter, injection
Standby and receiver, the receiver include the ripple control receiving circuit described in the claims 1-6 any one, are passed through
Central control equipment generates control encoded signal, injects work by transmitter and injection device again by the amplification of local control device
On frequency power grid, the ripple control receiving circuit of receiver is filtered the full range signal of power grid from common frequency power network, to carry
The ripple control signals of taking-up specific frequency issue microcontroller and are decoded processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810030617.6A CN108345242A (en) | 2018-01-12 | 2018-01-12 | Ripple control receiving circuit and remote-control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810030617.6A CN108345242A (en) | 2018-01-12 | 2018-01-12 | Ripple control receiving circuit and remote-control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108345242A true CN108345242A (en) | 2018-07-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810030617.6A Pending CN108345242A (en) | 2018-01-12 | 2018-01-12 | Ripple control receiving circuit and remote-control system |
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Citations (7)
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| CN201765311U (en) * | 2010-03-29 | 2011-03-16 | 深圳睿立方智能科技有限公司 | Battery monitoring device |
| CN202178762U (en) * | 2011-07-21 | 2012-03-28 | 中国电力科学研究院 | Cross area multipath parallel power frequency communication user terminal apparatus |
| CN103916207A (en) * | 2014-04-11 | 2014-07-09 | 北京理工大学 | Active device and method for interfering multi-frequency-band power line communication |
| CN204362013U (en) * | 2015-02-09 | 2015-05-27 | 广西师范大学 | The digital filter apparatus of high-frequency resonant soft switch transducer measuring circuit |
| CN204856884U (en) * | 2015-08-20 | 2015-12-09 | 杭州意聚电子技术有限公司 | Electricity measuring equipment's ripple receiving circuit |
| US20160294331A1 (en) * | 2015-03-31 | 2016-10-06 | Analog Devices, Inc. | Apparatus and methods for chopping ripple reduction in amplifiers |
| CN107493119A (en) * | 2017-08-31 | 2017-12-19 | 鲁东大学 | A kind of dc bus carrier communication system that power supply ripple is utilized based on VPPM |
-
2018
- 2018-01-12 CN CN201810030617.6A patent/CN108345242A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201765311U (en) * | 2010-03-29 | 2011-03-16 | 深圳睿立方智能科技有限公司 | Battery monitoring device |
| CN202178762U (en) * | 2011-07-21 | 2012-03-28 | 中国电力科学研究院 | Cross area multipath parallel power frequency communication user terminal apparatus |
| CN103916207A (en) * | 2014-04-11 | 2014-07-09 | 北京理工大学 | Active device and method for interfering multi-frequency-band power line communication |
| CN204362013U (en) * | 2015-02-09 | 2015-05-27 | 广西师范大学 | The digital filter apparatus of high-frequency resonant soft switch transducer measuring circuit |
| US20160294331A1 (en) * | 2015-03-31 | 2016-10-06 | Analog Devices, Inc. | Apparatus and methods for chopping ripple reduction in amplifiers |
| CN204856884U (en) * | 2015-08-20 | 2015-12-09 | 杭州意聚电子技术有限公司 | Electricity measuring equipment's ripple receiving circuit |
| CN107493119A (en) * | 2017-08-31 | 2017-12-19 | 鲁东大学 | A kind of dc bus carrier communication system that power supply ripple is utilized based on VPPM |
Non-Patent Citations (1)
| Title |
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Application publication date: 20180731 |
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