CN207518606U - Appliance control system based on efficient modulation demodulation power-line carrier communication - Google Patents
Appliance control system based on efficient modulation demodulation power-line carrier communication Download PDFInfo
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- CN207518606U CN207518606U CN201721413826.6U CN201721413826U CN207518606U CN 207518606 U CN207518606 U CN 207518606U CN 201721413826 U CN201721413826 U CN 201721413826U CN 207518606 U CN207518606 U CN 207518606U
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Abstract
The utility model discloses a kind of appliance control systems based on efficient modulation demodulation power-line carrier communication, including several household electrical appliances being connected on power line, several household electrical appliances are connected to by household electrical appliances monitoring module on the power line, and power line communication module is also associated on the power line；The household electrical appliances monitoring module is communicated by the power line with the power line communication module.The power line communication module of the utility model is equivalent to the communication module of Internet of things node.The advantages that efficient modulation demodulation techniques ensure the data bit rate higher of communication module, and antijamming capability is stronger, communication distance seriation.The power line carrier appliance control system based on the efficient modulation demodulation communication technology of the utility model, not only it had solved the disadvantage that needs were individually laid with communication module control circuit or occupy wireless communication frequency point originally, but also has solved the insecure shortcoming of the external household electrical appliances communication module communication of original power carrier.The control of long-distance intelligent household electrical appliances is realized very well, is saved improvement cost, is effectively utilized existing domestic electric appliances controller and power line condition.
Description
Technical field
The utility model patent belongs to Internet of product technical field, and in particular to a kind of remote household electrical appliance control system.
Background technology
With the proposition of industry 4.0, industry develops from informationization to intelligent direction.And Internet of Things is intelligent
Important component.How existing household electrical appliances are linked into the ecology of Internet of Things, are those skilled in the art's direct requirement
In face of the problem of.
In present intelligent appliance access Internet of things system often, by the additional communication module with remote control come
It completes, which needs individually to be laid with the control circuit of communication module, and one side communication mode is relatively backward, on the other hand needs
Additional to set up control line and add hardware, the cost so built and safeguarded is also very high.Current also some technological means
Using the external household electrical appliances communication module by power line carrier, although this method solves the problems, such as to set up control line, but
It is the impulse disturbances easily by power line inherently, insecure problem that communicates occurs again.
Utility model content
To overcome deficiency of the prior art, the purpose of this utility model is to provide one kind based on efficient modulation demodulation electricity
The appliance control system of powerline carrier communication technology, the system can be very good to realize the control of long-distance intelligent household electrical appliances, save
Improvement cost is effectively utilized existing household electrical appliances and power line condition.
In order to solve the above technical problems, realizing above-mentioned technique effect, the utility model is achieved through the following technical solutions：
A kind of appliance control system based on efficient modulation demodulation power-line carrier communication, including being connected to power line
On several household electrical appliances, corresponding several household electrical appliances monitoring modules, for remote monitoring host computer and for mobile monitor/
Intelligent mobile terminal.Contain power line communication module in several household electrical appliances monitoring modules, several household electrical appliances lead to
It crosses the power line communication module contained in several household electrical appliances monitoring modules to be connected on the power line, described is upper
Position machine is connected to by the individual power line communication module on the power line；The household electrical appliances monitoring module passes through the electricity
The line of force and power line communication module communication communicate, and connect and be controlled by it with the host computer；The intelligent mobile terminal leads to
Wireless channel is crossed to communicate with the host computer.
The power line communication module includes a digital signal processor, and the output terminal of the digital signal processor connects
There is a modulated signal to form module, the modulated signal forms module and is connected with a power amplifier module, the power amplification mould
Block is connected with transmitting coupling network module, and the transmitting coupling network module is connected to the power line；At the digital signal
The input terminal of reason device is connected with a bandpass filtering modules block, and the bandpass filtering modules block is connected with an automatic gain module, it is described from
Dynamic gain module is connected with a frequency-selecting amplification module, and the frequency-selecting amplification module is connected with a reception coupling network module, described
It receives coupling network module and is connected to the power line.
Further, the digital signal processor is connected with sensor and/or domestic electric appliances controller.
The technical principle of the utility model is as follows：
1）Signal emits
The coded data packet that the digital signal processor will need the information sent composition prescribed form carries out more by turn
First positional phase shift keying（MPPSK）After modulation, signal shaping is carried out by modulated signal module and passes through power amplifier module
Power amplification is carried out, obtains being suitable for the signal waveform and level of power line transmission, then defeated through the transmitting coupling network module
Go out to transmitting on power line.The transmitting coupling network module is actually a bandpass filter, on the one hand by 50Hz/220V
Low-frequency high-voltage be isolated with power line communication module, on the other hand by the transmission signal of high frequency low voltage be coupled to power line upload
It is defeated.
2）Signal receives
Receive coupling network effect with transmission coupling network it is similar, for by the transmission signal of other side from power line coupling
It closes and carries out frequency-selecting amplification to the frequency-selecting amplification module of power line communication module（Bandpass filtering and amplification）.Due to power carrier channel
Reception amplifier has been carried out greatly by automatic growth control module with strong fluctuating and depth attenuation, power line communication module
Dynamic range（More than 50dB）Automatic growth control（AGC）, and it is next maximum to employ the ceramic filter that two-stage specially designs
Inhibit to limit the interference outside communication band.Finally by the analog-digital converter of digital signal processor by receiving signal digital.
Compared with prior art, the utility model has the advantages that：
The power line communication module of the utility model is equivalent to the communication module of Internet of things node.Efficient modulation demodulation techniques
The advantages that data bit rate higher of guarantee communication module, antijamming capability is stronger, communication distance seriation.
The power line carrier appliance control system based on the efficient modulation demodulation communication technology of the utility model, both solved
It originally needs individually to be laid with communication module control circuit or setting wireless sensing net node and occupies the shortcomings that wirelessly communicating frequency point,
The external household electrical appliances communication module communication of original power carrier is solved again because transmission range zooms out rear insecure shortcoming.Well
The control of long-distance intelligent household electrical appliances is realized, saves improvement cost, is effectively utilized the manual control box and electric power of existing household electrical appliances
Lines part.
The above description is merely an outline of the technical solution of the present invention, in order to better understand the skill of the utility model
Art means, and can be implemented in accordance with the contents of the specification, below on the preferred embodiment of the present invention and the accompanying drawings in detail
It describes in detail bright as after.Specific embodiment of the present utility model is shown in detail by following embodiment and its attached drawing.
Description of the drawings
Attached drawing described herein is used to provide a further understanding of the present invention, and forms the part of the application,
The illustrative embodiments and their description of the utility model are not formed for explaining the utility model to the improper of the utility model
It limits.In the accompanying drawings：
Fig. 1 is the block schematic illustration of Tthe utility model system.
Fig. 2 is the system framework figure of the power line communication module of the utility model.
Specific embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, the utility model is described in detail.Illustration is used for providing herein
The utility model is further understood, forms the part of the application, the illustrative embodiments and their description of the utility model
For explaining the utility model, the improper restriction to the utility model is not formed.
It is shown in Figure 1, a kind of appliance control system based on efficient modulation demodulation power-line carrier communication, including
Several household electrical appliances being connected on power line 2（The present embodiment uses air-conditioning）1, several household electrical appliances 1 pass through household electrical appliances monitoring module 3
It is connected on the power line 2, power line communication module 4 is also associated on the power line 2；The household electrical appliances monitoring module 3 is logical
Cross the power line 2 and the power line communication module 4 and the host computer（The present embodiment uses wall hanging type flat plate computer）6 is logical
Letter；The intelligent mobile terminal 5（The present embodiment selects smart mobile phone）Pass through wireless channel with the host computer 6（The present embodiment
Select 4G mobile communications networks）Communication.
Further, the digital signal processor 401 is connected with sensor（The present embodiment selects temperature sensor）.
Further, the digital signal processor 401 is connected with domestic electric appliances controller（The present embodiment selects hotel guest-room door
The airconditioning control and regulating switch of mouth）.
Shown in Figure 2, the power line communication module 4 includes a digital signal processor 401, at the digital signal
The output terminal of reason device 401 is connected with a modulated signal and forms module 402, and the modulated signal forms module 402 and is connected with a work(
Rate amplification module 403, the power amplifier module 403 are connected with transmitting coupling network module 404, the transmitting coupling network mould
Block 404 is connected to the power line 2；The input terminal of the digital signal processor 401 is connected with a bandpass filtering modules block 408,
The bandpass filtering modules block 408 is connected with an automatic gain module 407, and the automatic gain module 407 is connected with a frequency-selecting and puts
Big module 406, the frequency-selecting amplification module 406 are connected with a reception coupling network module 405, the reception coupling network module
405 are connected to the power line 2.
Further, the power line communication module 4 is connected with intelligent mobile terminal 5 by wireless transport module.
Further, the power line communication module 4 is connected with host computer 6 by wire transmission module.
By the programming to digital signal processor in this implementation, the two-stage digital filtering of the docking collection of letters number is completed（Band logical
And low pass）MPBPSK demodulation, data unpack, the parsing and execution of channel decoding and remote control command（Such as control air-conditioning
Open and close and temperature etc., this part constitute complete air conditioning monitoring mould along with the acquisition for temperature sensor parameter
The function of block.And in the present embodiment, be by the power line communication module 4 directly with existing manual air conditioning controller and its
Liquid crystal display panel and control button are fully integrated into the air-conditioner control box of standard, so as to constitute complete and compact intelligence
Air conditioner remote control module, i.e., household electrical appliances monitoring module described in the utility model）.
In order to evade the strong electromagnetic of power line low-frequency range, in the present embodiment the carrier frequency of modulated signal be selected in 250kHz with
Super band.Meanwhile in order to adapt to different application scenarios and user demand, the power line communication module of the present embodiment can be according to
Data bit rate and communication distance seriation（From hundreds of bps to tens kbps）And networking（I.e. any household appliance control module
Relay forwarding service is provided for other household appliance control modules, with the overall communication distance that doubles）, household appliance control module can also pass through
Different sensor/controller/wireless transceivers is replaced or added, forms more general Internet of things node.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (7)
1. a kind of appliance control system based on efficient modulation demodulation power-line carrier communication, including being connected to power line
（2）On several household electrical appliances（1）, it is characterised in that：Several household electrical appliances（1）Pass through household electrical appliances monitoring module（3）It is connected to described
Power line（2）On, the power line（2）On be also associated with power line communication module（4）；The household electrical appliances monitoring module（3）Pass through
The power line（2）With the power line communication module（4）Communication.
2. the appliance control system according to claim 1 based on efficient modulation demodulation power-line carrier communication,
It is characterized in that：The power line communication module（4）Including a digital signal processor（401）, the digital signal processor
（401）Output terminal be connected with a modulated signal formed module（402）, the modulated signal formation module（402）It is connected with one
Power amplifier module（403）, the power amplifier module（403）It is connected with transmitting coupling network module（404）, the transmitting coupling
Close network module（404）It is connected to the power line（2）；The digital signal processor（401）Input terminal be connected with a band
Pass filtering module（408）, the bandpass filtering modules block（408）It is connected with an automatic gain module（407）, the automatic gain mould
Block（407）It is connected with a frequency-selecting amplification module（406）, the frequency-selecting amplification module（406）It is connected with a reception coupling network mould
Block（405）, the reception coupling network module（405）It is connected to the power line（2）.
3. the appliance control system according to claim 2 based on efficient modulation demodulation power-line carrier communication,
It is characterized in that：The digital signal processor（401）It is connected with sensor.
4. the appliance control system according to claim 2 based on efficient modulation demodulation power-line carrier communication,
It is characterized in that：The digital signal processor（401）It is connected with domestic electric appliances controller.
5. the appliance control system according to claim 1 based on efficient modulation demodulation power-line carrier communication,
It is characterized in that：The power line communication module（4）Intelligent mobile terminal is connected with by wireless transport module（5）.
6. the appliance control system according to claim 1 based on efficient modulation demodulation power-line carrier communication,
It is characterized in that：The power line communication module（4）Host computer is connected with by wire transmission module（6）.
7. the appliance control system according to claim 1 based on efficient modulation demodulation power-line carrier communication,
It is characterized in that：The power line communication module（4）With the household electrical appliances monitoring module（3）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721413826.6U CN207518606U (en) | 2017-10-30 | 2017-10-30 | Appliance control system based on efficient modulation demodulation power-line carrier communication |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721413826.6U CN207518606U (en) | 2017-10-30 | 2017-10-30 | Appliance control system based on efficient modulation demodulation power-line carrier communication |
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| CN207518606U true CN207518606U (en) | 2018-06-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107666422A (en) * | 2017-10-30 | 2018-02-06 | 苏州东奇信息科技股份有限公司 | Appliance control system based on efficient modulation demodulation power-line carrier communication |
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2017
- 2017-10-30 CN CN201721413826.6U patent/CN207518606U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107666422A (en) * | 2017-10-30 | 2018-02-06 | 苏州东奇信息科技股份有限公司 | Appliance control system based on efficient modulation demodulation power-line carrier communication |
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