CN104113359A - WiFi-PLC (wireless fidelity-power line carrier) communication module - Google Patents
WiFi-PLC (wireless fidelity-power line carrier) communication module Download PDFInfo
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- CN104113359A CN104113359A CN201410359066.XA CN201410359066A CN104113359A CN 104113359 A CN104113359 A CN 104113359A CN 201410359066 A CN201410359066 A CN 201410359066A CN 104113359 A CN104113359 A CN 104113359A
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- line carrier
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Abstract
The invention discloses a WiFi-PLC communication module and relates to communication module technology. Due to the fact that WiFi and power line carrier are based on two different protocols, a WiFi terminal device cannot communicated with a PLC device, and in control devices in the field of smart household devices, WiFi controllers and PLC controls have various problems. The WiFi-PLC communication module integrates a WiFi chip and a PLC chip, provides fusion of the Internet and PLC communication, achieves conversion from WiFi signals to PLC signals and enables a user to conveniently transmit control signals to power lines at home through a handheld device and further to control smart household devices. When applied to the smart household devices, the WiFi-PLC communication module can solve the problems of cable laying as well as space limitation.
Description
Technical field
The present invention relates to communication module technology, be specifically related to a kind of WiFi-PLC communication module.
Background technology
At present, in Smart Home field, be that a hundred flowers blossom, its object is to control fitment.Home equipment state is roughly divided into two kinds: one is wireless, and another kind is wired.Wired can have 485 modes, 232 modes, ModBus coaxial circuit, power line.Except this mode of power line, other wired cable laying that all needs, general being difficult to realized.Power line is most widely used in the family, and each electric equipment all needs electric power, is mode the most easily, but after the trial of each side, because a variety of causes (as hardware, software) is all without obtaining effective breakthrough.Another kind of wireless mode, as 315MHZ, 433MHZ frequency band, Zigbee, WIFI mode, because they use wireless mode, cannot complete communication or cannot, across the communication in room, have equally its limitation the electrical equipment in a lot of iron sheets.
For solving the problem existing in Smart Home application, my company is according to " the power line carrier communication design software based on automatic routing technology " (soft work is stepped on font size No. 0738779) theory, WiFi-PLC communication module has been made in special research and development, solve the problem that Smart Home uses power line carrier communication and the pattern of handheld device (mobile phone, flat board, computer) control for Smart Home exists, therefrom also used Cloud Server (large data) to realize the complete a set of control system of Smart Home.
Summary of the invention
Object of the present invention: utilize a kind of WiFi-PLC communication module, solve the control existing in Smart Home field nowadays loaded down with trivial details, realize all kinds of problems such as difficulty.
A kind of WiFi-PLC communication module, it comprises antenna, coupling circuit, zero cross detection circuit, power amplification circuit, power supply; It is characterized in that also comprising WiFi chip and power line carrier communication chip; The fusion of Internet and PLC power line carrier communication is provided, WiFi signal can have been converted to power line carrier signal, user can easily control signal is transferred on the power line of family and then be controlled Smart Home by handheld device.
Described WiFi chip, it is built-in with data protocol management conversion program, make chip except the AP/STA function program of operation standard, also moving protocol conversion hypervisor, be responsible for the two-way transparent transmission that the data on WiFi network and power line network are carried out to the coordinating and unifying, and communication data is filtered and flow to control; When handheld device and WiFi chip set up be connected after, handheld device sends after packet to WiFi chip, first WiFi chip filters data by protocol conversion hypervisor, when judge the data that receive be while meeting the legal data that protocol of power line carrier communication requires by data penetration transmission in power line carrier chip; Otherwise in the time that intelligent home device sends data on power line carrier chip, power line carrier chip is by data penetration transmission to WiFi chip, protocol conversion hypervisor, by after data processing conversion, sends to the handheld device being connected with WiFi chip.
Described WiFi chip, wherein built-in access point management function of while, user can set the fixing MAC information of WiFi network interface card in own handheld device, the break-make situation awareness user of WiFi chip by monitoring access point MAC whether at home, thereby send the corresponding intelligent safety and defence system of setting up defences and withdrawing a garrison in signal controlling man.
Described power line carrier chip, based on " the power line carrier communication design software based on automatic routing technology " theory, the Data Modulation that receives serial ports can be become to dpsk signal, then after power amplification, be coupled to power line, transmit data by power line, and then home appliance is controlled; Otherwise the power line carrier signal of home appliance passback, can, through the demodulation function of chip, demodulate serial data by signal and send from serial ports.
Described WiFi-PLC communication module, converts WiFi signal to power line carrier signal, has adopted the data penetration transmission mode of WiFi chip (MCU) to power line carrier chip (MCU); When WiFi-PLC communication module receives after the control signal of handheld device (mobile phone, flat board, computer) in Intranet or outer net, first WiFi chip filters data by protocol conversion hypervisor, while meeting the legal data that protocol of power line carrier communication requires when judging the data that receive, the TXD of WiFi chip passes through 47 pin RX of power line carrier chip by R-30, through the processing of power line carrier chip, modulation becomes dpsk signal, after power amplification, be coupled to power line, arrive the control of home appliance device by power line; Otherwise, when the return path signal of household electrical appliances, after power line, by the demodulation of power line carrier chip, be transparent to handheld device through chip 48 pin TX, R-29 and WiFi chip RXD, thereby realize two-way communication.
Beneficial effect of the present invention is: WiFi-PLC module comprises WiFi chip and power line carrier communication chip, there is AP/STA function, the fusion of Internet and PLC power line carrier communication is provided, WiFi signal can be converted to power line carrier signal, user can easily control signal is transferred on the power line of family and then be controlled Smart Home by handheld device.
Brief description of the drawings
Fig. 1 is the theory diagram of a kind of WiFi-PLC communication module of the present invention.
Fig. 2 is the schematic diagram of a kind of WiFi-PLC communication module of the present invention.
Fig. 3 is the power supply circuit figure of a kind of WiFi-PLC communication module of the present invention.
Fig. 4 is the power amplification circuit figure of a kind of WiFi-PLC communication module of the present invention.
Fig. 5 is the coupling circuit figure of a kind of WiFi-PLC communication module of the present invention.
Fig. 6 is the zero cross detection circuit figure of a kind of WiFi-PLC communication module of the present invention.
Fig. 7 is the concrete application example figure of a kind of WiFi-PLC communication module of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
A kind of WiFi-PLC communication module of the present invention, as shown in Figure 1, it comprises antenna, WiFi chip, power line carrier chip, coupling circuit, zero cross detection circuit, power amplification circuit, power supply.WiFi-PLC communication module provides the fusion of Internet and PLC power line carrier communication, adopt the data penetration transmission mode of WiFi chip (MCU) to power line carrier chip (MCU), convert WiFi signal to power line carrier signal, user can easily control signal is transferred on the power line of family and then be controlled Smart Home by handheld device.
As shown in Figure 2, when WiFi-PLC communication module receives after the control signal of handheld device (mobile phone, flat board, formula computer) in Intranet or outer net, WiFi built-in chip type has data protocol management conversion program, be responsible for the two-way transparent transmission that the data on WiFi network and power line network are carried out to the coordinating and unifying, and communication data is filtered and flow to control.First by protocol conversion hypervisor, data are filtered, while meeting the legal data that protocol of power line carrier communication requires when judging the data that receive, the TXD of WiFi chip passes through 47 pin RX of power line carrier chip by R-30, through the processing of power line carrier chip, modulation becomes dpsk signal, after power amplification, be coupled to power line, arrive the control of home appliance device by power line; Otherwise, when the return path signal of household electrical appliances, after power line, by the demodulation of power line carrier chip, be transparent to handheld device through chip 48 pin TX, R-29 and WiFi chip RXD, thereby realize two-way communication.
Described WiFi chip, built-in access point management function, user can set the fixing MAC information of WiFi network interface card in own handheld device, the break-make situation awareness user of WiFi chip by monitoring access point MAC whether at home, thereby send the corresponding intelligent safety and defence system of setting up defences and withdrawing a garrison in signal controlling man.
As shown in Figure 3,220V voltage is through D42 halfwave rectifier, by Q1, Q2, D43, D44 and ZD1, T1 exchange, obtain 12V DC power supply through D45 rectification, for power amplifier, 12V is again through HT7150H, and HT7133 supplies respectively power line carrier chip and WiFi chip power.
When handheld device and WiFi chip set up be connected after, handheld device sends after packet to WiFi chip, first WiFi chip filters data by protocol conversion hypervisor, while meeting the legal data that protocol of power line carrier communication requires when judging the data that receive, the TXD of WiFi chip passes through 47 pin RX of power line carrier chip by R-30, through the processing of power line carrier chip, modulation becomes dpsk signal.
As shown in Figure 4, dpsk signal is through power amplification, and R8, R26, R10, VT1, VT2 form power amplifier switch, and power line carrier chip is not in the time that TX has transmitted signal, and power circuit quits work, and makes its power save mode; The composition such as VT3, VT4, VT5 and U5, U6 AB class power amplifier; Regulate the size of R19 resistance, carry out the adjusting of multiplication factor; The value of regulating resistance R17 and R18 resistance, the symmetry of adjustment output signal, reduces to disturb in addition; After power line carrier chip signal output is amplified, be coupled to power line.
Coupling circuit can be isolated light current and forceful electric power, and signal transmits in the mode of coupling; As shown in Figure 5, D pipe plays to eliminate and suppresses electrical network reverse coupled surge voltage percussion, protection internal circuit; Coupling coil utilizes the coupling transformer of 1:1, and this coupling transformer selects place carrier wave frequency range to have the magnetic core of good response; Dielectric strength test reaches 4000V, does not puncture (f=50Hz, t=60s, leakage current 1mA); Receive bandwidth-limited circuit and form second order bandwidth-limited circuit by L1, L2, C14, C17, constrain operating frequency band in addition and disturb outward, wherein R1, for protection current limliting use, gets 560 Europe; D1 diode plays the effect of input voltage amplitude limit.
In power line except 50Hz power supply and carrier communication signal, also have various interference, as shown in Figure 6, in our carrier communication design, during with 50Hz AC signal zero crossing, noise signal is relatively little, in the time of zero passage, start power line carrier chip transmitted signal, diode VD2 and resistance R 33, the effect of R34 is to charge to capacitor C 27 in the time of the positive half cycle of power frequency, press steady diode VD4 that capacitor C 27 both end voltage are stabilized in to 5.1V, at power frequency negative half period, VT6 triggering and conducting, drive optocoupler D5 conducting, optocoupler D5 adopts kind logical optocoupler, play photoelectricity buffer action, isolation forceful electric power and weakness, the accuracy of crossover point signal directly affects the effect of tdm communication, and the accuracy of zero cross detection circuit depends on the precision of device, and the device precision of this partial circuit is more high better.
Signal amplifies and is coupled to power line through above-mentioned steps, then arrives the control of home appliance device by power line.
Otherwise, when the return path signal of household electrical appliances, after power line, by the demodulation of power line carrier chip, be transparent to handheld device (mobile phone, flat board, computer) through chip 48 pin TX, R-29 and WiFi chip RXD, thereby realize two-way communication.
The concrete application example of WiFi-PLC communication module, as shown in Figure 7.
User sends control command by handheld device to intelligent home device, and control command is by the inner wifi router of family or deliver to WiFi-PLC module by Internet.
WiFi-PLC module is modulated to control command on power line after processing.
Intelligent home device is being received restituted signal after signal, and makes respective response according to the control command demodulating.
User can arrange safety protection function, by client connect wifi state automatic decision user whether at home, in the time that user is away from home, Smart Home enters the state of setting up defences automatically.
Cloud server is being monitored the ruuning situation of each equipment in real time, and in the time abnormal conditions being detected, it will start warning function, send alarm by modes such as notes to user and security department.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, any be familiar with those skilled in the art the present invention disclose technical scope in; can expect easily changing or replacing, within all should being encompassed in protection scope of the present invention.
Claims (5)
1. a WiFi-PLC communication module, it comprises antenna, coupling circuit, zero cross detection circuit, power amplification circuit, power supply; It is characterized in that also comprising WiFi chip and power line carrier communication chip, the fusion of Internet and PLC power line carrier communication is provided, WiFi signal can be converted to power line carrier signal, user can easily control signal is transferred on the power line of family and then be controlled Smart Home by handheld device.
2. WiFi-PLC communication module according to claim 1, it is characterized in that: described WiFi chip, be built-in with data protocol management conversion program, be responsible for the two-way transparent transmission that the data on WiFi network and power line network are carried out to the coordinating and unifying, and communication data is filtered and flow to control.
3. WiFi-PLC communication module according to claim 1, it is characterized in that: described WiFi chip, built-in access point management function, user can set the fixing MAC information of WiFi network interface card in own handheld device, the break-make situation awareness user of WiFi chip by monitoring access point MAC whether at home, thereby send the corresponding intelligent safety and defence system of setting up defences and withdrawing a garrison in signal controlling man.
4. WiFi-PLC communication module according to claim 1, is characterized in that: described WiFi signal converts power line carrier signal to, has adopted the data penetration transmission mode of WiFi chip (MCU) to power line carrier chip (MCU).
5. WiFi-PLC communication module according to claim 1, it is characterized in that: described power line carrier chip, based on " the power line carrier communication design software based on automatic routing technology " theory, the Data Modulation that receives serial ports can be become to dpsk signal, then after power amplification, be coupled to power line, transmit data by power line, and then home appliance is controlled; Otherwise the power line carrier signal of home appliance passback, can, through the demodulation function of chip, demodulate serial data by signal and send from serial ports.
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| CN201410359066.XA CN104113359A (en) | 2014-07-25 | 2014-07-25 | WiFi-PLC (wireless fidelity-power line carrier) communication module |
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| CN201410359066.XA CN104113359A (en) | 2014-07-25 | 2014-07-25 | WiFi-PLC (wireless fidelity-power line carrier) communication module |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104836709A (en) * | 2014-12-26 | 2015-08-12 | 苏州市职业大学 | Intelligent household system based on power carrier |
| CN104950792A (en) * | 2015-07-01 | 2015-09-30 | 重庆邮电大学 | Modbus protocol based hybrid networking method and industrial terminal equipment |
| CN105629942A (en) * | 2016-03-09 | 2016-06-01 | 江苏科技大学 | Android embedded platform-based intelligent household control system |
| CN105635166A (en) * | 2016-01-22 | 2016-06-01 | 北京京东世纪贸易有限公司 | Information transmission method, apparatus and system |
| CN106027346A (en) * | 2016-07-11 | 2016-10-12 | 南京航空航天大学 | Indoor electric appliance management system and control method thereof |
| CN106205103A (en) * | 2016-07-11 | 2016-12-07 | 南京航空航天大学 | A kind of indoor electric appliance management system |
| CN106302034A (en) * | 2015-05-25 | 2017-01-04 | 四川长虹电器股份有限公司 | A kind of method and system realizing the wireless local control of home appliance based on WIFI |
| CN106992799A (en) * | 2016-12-23 | 2017-07-28 | 中国人民解放军信息工程大学 | A kind of visible light communication system with WIFI communication functions |
| CN107205010A (en) * | 2016-03-18 | 2017-09-26 | 北京京东尚科信息技术有限公司 | Intelligent control device and its automatic identification method |
| CN107231274A (en) * | 2016-03-25 | 2017-10-03 | 北京京东尚科信息技术有限公司 | Information carrying means and its exchange method with server |
| CN108011765A (en) * | 2017-12-08 | 2018-05-08 | 深圳市共进电子股份有限公司 | Communication equipment and its optimization method |
| CN108092696A (en) * | 2018-01-25 | 2018-05-29 | 常州全橙智能科技有限公司 | Five phase intelligent power line carrier communications control managing device |
| CN111385674A (en) * | 2020-03-06 | 2020-07-07 | 深圳市新威尔电子有限公司 | Many equipment serial ports loading system based on WIFI |
| CN113873691A (en) * | 2021-10-08 | 2021-12-31 | 深圳市力合微电子股份有限公司 | PLBUS intelligent home gateway |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104836709A (en) * | 2014-12-26 | 2015-08-12 | 苏州市职业大学 | Intelligent household system based on power carrier |
| CN106302034A (en) * | 2015-05-25 | 2017-01-04 | 四川长虹电器股份有限公司 | A kind of method and system realizing the wireless local control of home appliance based on WIFI |
| CN104950792A (en) * | 2015-07-01 | 2015-09-30 | 重庆邮电大学 | Modbus protocol based hybrid networking method and industrial terminal equipment |
| CN105635166A (en) * | 2016-01-22 | 2016-06-01 | 北京京东世纪贸易有限公司 | Information transmission method, apparatus and system |
| CN105629942A (en) * | 2016-03-09 | 2016-06-01 | 江苏科技大学 | Android embedded platform-based intelligent household control system |
| CN107205010A (en) * | 2016-03-18 | 2017-09-26 | 北京京东尚科信息技术有限公司 | Intelligent control device and its automatic identification method |
| CN107231274A (en) * | 2016-03-25 | 2017-10-03 | 北京京东尚科信息技术有限公司 | Information carrying means and its exchange method with server |
| CN106027346A (en) * | 2016-07-11 | 2016-10-12 | 南京航空航天大学 | Indoor electric appliance management system and control method thereof |
| CN106205103A (en) * | 2016-07-11 | 2016-12-07 | 南京航空航天大学 | A kind of indoor electric appliance management system |
| CN106992799A (en) * | 2016-12-23 | 2017-07-28 | 中国人民解放军信息工程大学 | A kind of visible light communication system with WIFI communication functions |
| CN108011765A (en) * | 2017-12-08 | 2018-05-08 | 深圳市共进电子股份有限公司 | Communication equipment and its optimization method |
| CN108092696A (en) * | 2018-01-25 | 2018-05-29 | 常州全橙智能科技有限公司 | Five phase intelligent power line carrier communications control managing device |
| CN111385674A (en) * | 2020-03-06 | 2020-07-07 | 深圳市新威尔电子有限公司 | Many equipment serial ports loading system based on WIFI |
| CN113873691A (en) * | 2021-10-08 | 2021-12-31 | 深圳市力合微电子股份有限公司 | PLBUS intelligent home gateway |
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Application publication date: 20141022 |