CN104836080A - Smart home socket based on RF433 technology transmission - Google Patents

Smart home socket based on RF433 technology transmission Download PDF

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Publication number
CN104836080A
CN104836080A CN201510227618.6A CN201510227618A CN104836080A CN 104836080 A CN104836080 A CN 104836080A CN 201510227618 A CN201510227618 A CN 201510227618A CN 104836080 A CN104836080 A CN 104836080A
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CN
China
Prior art keywords
power
electric capacity
circuit
connects
resistance
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CN201510227618.6A
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Chinese (zh)
Inventor
赵鹏
李禹翔
王安然
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CHINA DOMESTIC ELECTRICAL EQUIPMENT INST
ANHUI ZHONGJIA ZHIRUI TECHNOLOGY Co Ltd
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CHINA DOMESTIC ELECTRICAL EQUIPMENT INST
ANHUI ZHONGJIA ZHIRUI TECHNOLOGY Co Ltd
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Priority to CN201510227618.6A priority Critical patent/CN104836080A/en
Publication of CN104836080A publication Critical patent/CN104836080A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66Structural association with built-in electrical component
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66Structural association with built-in electrical component
    • H01R13/665Structural association with built-in electrical component with built-in electronic circuit
    • H01R13/6675Structural association with built-in electrical component with built-in electronic circuit with built-in power supply

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

The invention discloses a smart home socket based on RF433 technology transmission. The smart home socket comprises a box body. The box body is provided internally with a power supply conversion module, a power acquisition module and a radio frequency communication module. The power supply conversion module is connected externally with a 220V AC power supply. The power supply conversion module and the power acquisition module are connected and provide a +5 DC power supply for the power acquisition module. The power supply conversion module is connected with the radio frequency communication module and provides a +5V DC power supply for the radio frequency communication module. The power acquisition module and the radio frequency communication module are connected, the acquired electricity information is transmitted to the radio frequency communication module by the power acquisition module, and the electricity information is transmitted to an external device by the radio frequency communication module. According to the invention, the smart home socket based on the RF433 technology transmission has the advantages of real-time acquisition of voltage and current values during the work of an electricity device in real time, calculation of the electricity quantity and other data, real-time monitoring of the electrical parameters of the electricity device, easy knowledge of the electricity information of the electricity device by consumers, and so forth.

Description

Based on the domestic intelligent socket of RF433 technical transmission
Technical field
The present invention relates to a kind of socket, especially a kind of can the domestic intelligent socket based on RF433 (RadioFrequency, radio frequency) technical transmission of Real-time Collection equipment power information.
Background technology
Along with socioeconomic development, the living standard of people is also more and more higher, and domestic electric appliance miscellaneous also constantly emerges, come into huge numbers of families, such as refrigerator, washing machine, air-conditioning, microwave oven etc., for the life of people offers convenience, improve the quality of life of people.Along with increasing of household electrical appliance, the electric cost expenditure of user also significantly increases, and consumes the electricity charge of hundreds of unit every month all unawares.
At present, the usual power consumption that himself is only described in model identification of existing electric equipment, or with the number of the mode representation unit power consumption of energy consumption grade, and do not have the electricity consumption situation of special metering module to household electrical appliance to measure, consumer also cannot obtain the power information of household electrical appliance, and user can not be allowed to understand the power consumption condition of each electric equipment intuitively, in real time.User can only by total ammeter understand total electricity consumption number, and cannot know the power consumption of each household electrical appliance number, be unfavorable for electrical energy saving.
Summary of the invention
The present invention is for avoiding the weak point that exists in above-mentioned prior art, providing a kind of domestic intelligent socket based on RF433 technical transmission, to monitor, to be convenient to the power information that consumer knows household electrical appliance to the electrical quantity of household electrical appliance.
The present invention be technical solution problem by the following technical solutions.
Based on the domestic intelligent socket of RF433 technical transmission, its design feature comprises box body, is provided with power transfer module, electric energy collection module and radio-frequency communication module within described box body; The external 220V AC power of described power transfer module also exports 220V alternating current, and power transfer module is connected with electric energy collection module and provides+5V DC power supply for electric energy collection module; Described power transfer module is connected with described radio-frequency communication module and provides+5V DC power supply for radio-frequency communication module; Described electric energy collection module is connected with radio-frequency communication module, by electric energy collection module, gathered power information is sent to radio-frequency communication module, sends power information to external equipment by radio-frequency communication module.
The design feature of the domestic intelligent socket based on RF433 technical transmission of the present invention is also:
Described power transfer module comprises transformer B, rectifier bridge BR, electric capacity C30-C33 and voltage stabilizing chip U10; The primary winding N1 of described transformer B connects 220V AC power, and the secondary coil N2 of described transformer B connects described voltage stabilizing chip U10 by described rectifier bridge BR; The positive pole of described electric capacity C30 connects the terminal Vin of voltage stabilizing chip U10, and the negative pole of described electric capacity C30 connects the terminal GND of voltage stabilizing chip U10; One end of described electric capacity C31 connects the terminal Vin of voltage stabilizing chip U10, and the other end of described electric capacity C31 connects the terminal GND of voltage stabilizing chip U10;
The positive pole of described electric capacity C32 connects the terminal Vout of voltage stabilizing chip U10, and the negative pole of described electric capacity C32 connects the terminal GND of voltage stabilizing chip U10; One end of described electric capacity C33 connects the terminal Vout of voltage stabilizing chip U10, and the other end of described electric capacity C33 connects the terminal GND of voltage stabilizing chip U10.
Described radio-frequency communication module comprises UHF transceiver U11, resistance R40, electric capacity C41-C415, inductance L 40 ~ L43, crystal oscillator Y40.
Described electric energy collection module comprises power-switching circuit, microcontroller U1, signal acquisition circuit and telecommunication circuit; Described power-switching circuit, signal acquisition circuit and telecommunication circuit are all connected with described microcontroller U1; Described power-switching circuit is used for AC power being converted to direct current, for described signal acquisition circuit, microcontroller U1 and telecommunication circuit provide power supply; Described signal acquisition circuit carries out voltage, current sample to the power supply signal of household electrical appliance; Described microcontroller U1, the voltage sample value sent for Received signal strength Acquisition Circuit and current sampling data, calculating voltage effective value, current effective value, energy value, active power, reactive power and power factor, and result of calculation is sent to telecommunication circuit; Described telecommunication circuit is used for result of calculation regularly to send to described radio-frequency communication module.
Described power-switching circuit comprises power supply chip U4, current rectifying and wave filtering circuit and voltage stabilizing circuit; The input of described current rectifying and wave filtering circuit is connected with external power source, and the output of described current rectifying and wave filtering circuit is connected with described power supply chip U4, and described power supply chip U4 is connected with described voltage stabilizing circuit; Described current rectifying and wave filtering circuit comprises diode D4, resistance R20 and electric capacity EC2; Described voltage stabilizing circuit comprises electric capacity EC1, diode D1, diode D1 ~ D3, diode D5 ~ D6, electric capacity C1 ~ C2, electric capacity C20 ~ C21, electric capacity E1, inductance L 1 and chip VR1.
Described signal acquisition circuit comprises manganese copper diverter U2, resistance R11 ~ R16, resistance R11 ~ R16, resistance R22, resistance R27 ~ R28, resistance R30 ~ R31, piezo-resistance RV2, electric capacity C12 ~ C19, splicing ear P1, splicing ear P3 and splicing ear J4.
Described telecommunication circuit comprises optocoupler U3, resistance R32 ~ R33; The pin 4 of described optocoupler U3 connects power vd D by resistance R32, pin 3 ground connection of described optocoupler U3; The pin 1 of described optocoupler U3 connects power supply M_VDD by resistance R33.
Compared with the prior art, beneficial effect of the present invention is embodied in:
Domestic intelligent socket based on RF433 technical transmission of the present invention, forms primarily of RF433 technology communication module, electric energy collection module, power transfer module and blanket socket box body.RF433 technology communication module uses carrier frequency 433MHz, without the need to demand frequency, receives sending function unification, received and dispatched interrupt identification; Electric energy collection module comprises power-switching circuit, signal acquisition circuit, microcontroller and telecommunication circuit; Power transfer module can transfer 220V alternating current to 5V direct current.Based on the domestic intelligent socket of RF433 technical transmission, can monitor the electrical quantity of household electrical appliance and be sent to receiving terminal by RF433 technology, be convenient to the power information that consumer knows household electrical appliance.
The signal acquisition circuit of electric energy collection module carries out voltage, current sample to the power supply signal of household electrical appliance.The voltage sample value that microcontroller Received signal strength Acquisition Circuit sends and current sampling data, calculating voltage effective value, current effective value, energy value, active power, reactive power and power factor, and result of calculation is sent to telecommunication circuit; Described telecommunication circuit is used for result of calculation regularly to send to described radio-frequency communication module, is then transferred to the receiving terminal of setting; User can obtain the power information of household electrical appliance by receiving terminal, thus can know the power consumption of each power consumption equipment very exactly, and then carrys out saves energy by the power consumption controlling power consumption equipment.
Domestic intelligent socket based on RF433 technical transmission of the present invention, have can the work of Real-time Collection power consumption equipment time voltage, current value calculate power consumption, active power, reactive power and power factor, the electrical quantity of power consumption equipment is monitored in real time, is convenient to consumer and knows the advantages such as the power information of power consumption equipment.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the domestic intelligent socket based on RF433 technical transmission of the present invention.
Fig. 2 is the structured flowchart of the electric energy collection module of the domestic intelligent socket based on RF433 technical transmission of the present invention.
Fig. 3 is the circuit diagram of the power transfer module of the domestic intelligent socket based on RF433 technical transmission of the present invention.
Fig. 4 is the structured flowchart of the radio-frequency communication module of the domestic intelligent socket based on RF433 technical transmission of the present invention.
Fig. 5 is the circuit diagram of the power-switching circuit of the electric energy collection module of Fig. 2.
Fig. 6 is the signal acquisition circuit of the electric energy collection module of Fig. 2 and the circuit diagram of microcontroller.
Fig. 7 is the circuit diagram of the telecommunication circuit of the electric energy collection module of Fig. 2.
Fig. 8 is the circuit diagram of the Acquisition Circuit in Fig. 6.
Fig. 9 is the circuit diagram of the microcontroller in Fig. 6.
Below by way of embodiment, and the invention will be further described by reference to the accompanying drawings.
Embodiment
See Fig. 1, the domestic intelligent socket based on RF433 technical transmission of the present invention, comprises box body, is provided with power transfer module, electric energy collection module and radio-frequency communication module within described box body; The external 220V AC power of described power transfer module also exports 220V alternating current, and power transfer module is connected with electric energy collection module and provides+5V DC power supply for electric energy collection module; Described power transfer module is connected with described radio-frequency communication module and provides+5V DC power supply for radio-frequency communication module; Described electric energy collection module is connected with radio-frequency communication module, by electric energy collection module, gathered power information is sent to radio-frequency communication module, sends power information to external equipment by radio-frequency communication module.
As Fig. 1, the domestic intelligent socket based on RF433 technical transmission of the present invention, primarily of the radio-frequency communication module of RF433 radio-frequency technique, electric energy collection module, power transfer module and blanket socket box body composition.Radio-frequency communication module uses carrier frequency 433MHz, without the need to demand frequency, receives sending function unification, has received and dispatched interrupt identification.Electric energy collection module comprises power-switching circuit, signal acquisition circuit, microcontroller and telecommunication circuit; Power transfer module adopts ultra-small volume power module, can realize alternating voltage 220V and turn direct current 5V.Box body is blanket socket box body, uses box at the bottom of the bright dress of the general PVC of 86 type.
Electric energy collection module comprises power-switching circuit, signal acquisition circuit, microcontroller and telecommunication circuit; Power transfer module can transfer 220V alternating current to 5V direct current.Based on the domestic intelligent socket of RF433 technical transmission, can monitor the electrical quantity of household electrical appliance and be sent to receiving terminal by RF433 radio-frequency technique, be convenient to the power information that consumer knows household electrical appliance.
Described power transfer module comprises transformer B, rectifier bridge BR, electric capacity C30-C33 and voltage stabilizing chip U10; The primary winding N1 of described transformer B connects 220V AC power, and the secondary coil N2 of described transformer B connects described voltage stabilizing chip U10 by described rectifier bridge BR; The positive pole of described electric capacity C30 connects the terminal Vin of voltage stabilizing chip U10, and the negative pole of described electric capacity C30 connects the terminal GND of voltage stabilizing chip U10; One end of described electric capacity C31 connects the terminal Vin of voltage stabilizing chip U10, and the other end of described electric capacity C31 connects the terminal GND of voltage stabilizing chip U10;
The positive pole of described electric capacity C32 connects the terminal Vout of voltage stabilizing chip U10, and the negative pole of described electric capacity C32 connects the terminal GND of voltage stabilizing chip U10; One end of described electric capacity C33 connects the terminal Vout of voltage stabilizing chip U10, and the other end of described electric capacity C33 connects the terminal GND of voltage stabilizing chip U10.
Accompanying drawing 3 is circuit diagrams of the power transfer module of domestic intelligent socket based on RF433 technical transmission, after input 220V alternating voltage, 220V alternating voltage is converted to 8V alternating voltage by transformer, through bridge rectifier, alternating voltage is become unidirectional pulsating voltage, become the direct voltage with AC ripple composition by pulsating voltage unidirectional after filtering, then become stable 5V direct voltage output after linear voltage regulator 7805 voltage stabilizing.
Voltage stabilizing chip U10 is circuit of three-terminal voltage-stabilizing integrated LM7805.Terminal Vin connects rectifier bridge, and terminal Vout exports+5V direct voltage.The peripheral cell formed needed for stabilized voltage power supply with lm78/lm79 series three-terminal voltage-stabilizing IC is few, and inside circuit also has the protective circuit of overcurrent, overheated and Correctional tube, and it is reliable, convenient to use, and low price.
Described radio-frequency communication module comprises UHF transceiver U11, resistance R40, electric capacity C41-C415, inductance L 40 ~ L43, crystal oscillator Y40.
The model of UHF transceiver U11 is CC1100.CC110 is the UHF transceiver of the real monolithic of a kind of low cost, for low-consumption wireless application and design.Main circuit will be set as the ISM (industry in 315,433,868 and 915MHz, science and medical science) and SRD (short-range device) frequency band, also easily can be set to other frequencies of 300-348MHz, 400-464MHz and 800-928MHz.RF transceiver is integrated with a highly configurable modulator-demodulator.Different modulation formats supported by this modulator-demodulator, and its data transmission rate can reach 500kbps.By opening the forward error recovery option be integrated on modulator-demodulator, performance can be made to get a promotion.CC1100 is processing data packets, data buffering, burst transfers of data, clear channel estimating, quality of connection instruction and electromagnetic wave excites hardware supports is widely provided.The main operating parameters of CC1100 and 64 transmission/reception FIFO (FIFO stack) are by SPI Interface Controller.In a canonical system, CC1150 uses together with a microcontroller and some passive devices.
Accompanying drawing 4 is RF433 technical communication module circuit diagrams of the domestic intelligent socket based on RF433 technical transmission, described RF433 technical communication module is communicated by the telecommunication circuit of UART port with described electric energy collection module, then the data received are transferred to the receiving terminal of user by RF433.
As Fig. 4, the one end after electric capacity C41 with C42 is parallel with one another is connected with the pin 5 of UHF transceiver U11, other end ground connection; One end of electric capacity C43 is connected with the pin 18 of UHF transceiver U11 and is connected+5V power supply, other end ground connection; One end of resistance R40 is connected with the pin 17 of UHF transceiver U11, other end ground connection; One end of electric capacity C44 is connected with the pin 15 of UHF transceiver U11 and is connected+5V power supply, other end ground connection; One end of electric capacity C45 is connected with the pin 14 of UHF transceiver U11 and is connected+5V power supply, other end ground connection;
One end of electric capacity C48 is connected with the pin 13 of UHF transceiver U11 and one end of inductance L 41, the other end ground connection of electric capacity C48; The other end of inductance L 41 is connected with the pin 12 of UHF transceiver U11 by electric capacity C415; One end of inductance L 43 is connected with the pin 12 of UHF transceiver U11, and the other end of inductance L 43 is by electric capacity C411 ground connection; One end of electric capacity C410 is connected with the pin 11 of UHF transceiver U11 and is connected+5V power supply, other end ground connection;
One end of inductance L 42 is connected between inductance L 41 and electric capacity C415, and the other end of inductance L 42 is connected communication antenna by inductance L 40 with electric capacity C46 successively; One end of electric capacity C47 is connected between inductance L 40 and electric capacity C46, other end ground connection; One end of electric capacity C49 is connected between inductance L 40 and inductance L 42, other end ground connection; One end of electric capacity C412 is connected with the pin 9 of UHF transceiver U11 and is connected+5V power supply, other end ground connection;
The two ends of crystal oscillator connect pin 8 and the pin 10 of UHF transceiver U11 respectively; One end of electric capacity C413 is connected with the pin 8 of UHF transceiver U11, other end ground connection; One end of electric capacity C414 is connected with the pin 10 of UHF transceiver U11, other end ground connection.
Described electric energy collection module comprises power-switching circuit, microcontroller U1, signal acquisition circuit and telecommunication circuit; Described power-switching circuit, signal acquisition circuit and telecommunication circuit are all connected with described microcontroller U1; Described power-switching circuit is used for AC power being converted to direct current, for described signal acquisition circuit, microcontroller U1 and telecommunication circuit provide power supply; Described signal acquisition circuit carries out voltage, current sample to the power supply signal of household electrical appliance; Described microcontroller U1, the voltage sample value sent for Received signal strength Acquisition Circuit and current sampling data, calculating voltage effective value, current effective value, energy value, active power, reactive power and power factor, and result of calculation is sent to telecommunication circuit; Described telecommunication circuit is used for result of calculation regularly to send to described radio-frequency communication module.
As Fig. 2, described power-switching circuit and signal acquisition circuit are all connected with described microcontroller, for AC power is converted to direct current, for described signal acquisition circuit, microcontroller and telecommunication circuit provide power supply.。Signal acquisition circuit carries out voltage, current sample to the power supply signal of household electrical appliance.The voltage sample value that microcontroller Received signal strength Acquisition Circuit sends and current sampling data, calculating voltage effective value, current effective value, energy value, active power, reactive power and power factor, and result of calculation is sent to telecommunication circuit; Described telecommunication circuit is used for result of calculation regularly to send to described radio-frequency communication module, and then radio-frequency communication module is transferred to the receiving terminal of setting; User can obtain the power information of household electrical appliance by receiving terminal, thus can know the power consumption of each power consumption equipment very exactly, and then carrys out saves energy by the power consumption controlling power consumption equipment.Power transfer module can transfer 220V alternating current to 5V direct current.
The voltage when function of described electric energy collection module is Real-time Collection household electric appliance operation, current value, through algorithm process, regularly send result to destination object.The data that described module sends comprise 6 parts, electricity, voltage, electric current, power factor, active power, reactive power respectively, wherein voltage, electric current are for directly to gather gained, and electricity, active power, reactive power, power factor are the later stage calculate gained.
Described power-switching circuit comprises power supply chip U4, current rectifying and wave filtering circuit and voltage stabilizing circuit; The input of described current rectifying and wave filtering circuit is connected with external power source, and the output of described current rectifying and wave filtering circuit is connected with described power supply chip U4, and described power supply chip U4 is connected with described voltage stabilizing circuit; Described current rectifying and wave filtering circuit comprises diode D4, resistance R20 and electric capacity EC2; Described voltage stabilizing circuit comprises electric capacity EC1, diode D1, diode D1 ~ D3, diode D5 ~ D6, electric capacity C1 ~ C2, electric capacity C20 ~ C21, electric capacity E1, inductance L 1 and chip VR1.
As the circuit diagram that Fig. 5 is power-switching circuit, the VIPer12A that chip VR1 adopts ST Microelectronics (ST) to produce.VIPer12A is a low-power consumption Off-line switched-mode power supply chip, encapsulates VIPower M0-3 high pressure patented technology, can simplify board design during design, reduces module cost.
The negative pole of described diode D4 is connected with the pin 5-pin 8 of power supply chip U4 by described resistance R20, and the positive pole of described electric capacity EC2 is connected between described resistance R20 and power supply chip U4, the minus earth of described electric capacity EC2; The negative pole of described diode D1, the positive pole of electric capacity EC1 are all connected with the pin 4 of power supply chip U4; The positive pole of the cathode connecting diode D2 of described diode D1 and the negative pole of diode D6, the plus earth of diode D6, the negative pole of diode D2 connects the negative pole of diode D3, and the positive pole of diode D3 is connected with the pin 3 of power supply chip U4; One end of electric capacity C20 connects the positive pole of diode D3, and the other end of electric capacity C20 connects the negative pole of electric capacity EC1 and is connected with pin 2 with the pin 1 of power supply chip U4; The negative pole of described diode D5 connects the negative pole of electric capacity EC1, the plus earth of diode D5; One end of inductance L 1 is connected with pin 2 with the pin 1 of power supply chip U4, and the other end of inductance L 1 connects the terminal Vin of chip VR1, and the positive pole of electric capacity E1 connects the terminal Vin of chip VR1, the minus earth of electric capacity E1; The positive pole of electric capacity C1 connects the terminal Vout of chip VR1, the minus earth of electric capacity C1; One end of electric capacity C2 connects the terminal Vout of chip VR1, the other end ground connection of electric capacity C2.
Described signal acquisition circuit comprises manganese copper diverter U2, resistance R11 ~ R16, resistance R11 ~ R16, resistance R22, resistance R27 ~ R28, resistance R30 ~ R31, piezo-resistance RV2, electric capacity C12 ~ C19, splicing ear P1, splicing ear P3 and splicing ear J4.
Accompanying drawing 6 is the signal acquisition circuit of described electric energy collection module and the circuit diagram of microcontroller U1, and the function of signal acquisition circuit carries out voltage, current sample to the power supply signal of household electrical appliance, and circuit design is as shown in the first half of Fig. 6 or Fig. 8.Power supply signal, by transferring to the analog acquisition port of microcontroller U1 after step-down rectifying circuit, realizes voltage sample; By transferring to the analog acquisition port of controller module after manganese copper diverter and step-down rectifying circuit, realize current sample.
Microcontroller U1 function receives sampled value, by algorithm process, and calculating voltage effective value, current effective value, energy value, active power, reactive power, power factor, and result of calculation is sent to telecommunication circuit.The D78F8053 type integrated circuit that microcontroller selects Renesas Electronics Corporation (Renesas Electronics Company) to produce.This chip has 64 pins, and inside is integrated with function and the peripheral hardwares such as serial line interface, Timer/Counter, A/D such as house dog, general purpose I/O, two UART.D78F8053 chip internal comprises 10bit successive approximation A/D converter, 24bit Δ Σ type A/D converter and power calculation circuit, quality of power supply measuring circuit and digital frequency conversion circuit, calculates the active power of measured signal, reactive power and the parameter such as electric current, voltage effective value by the inner related register of control program configuring chip.D78F8053 chip provides the data space of 64KB, comprising the writing of the general register of 32Byte and 32KB, erasable FLASH memory space, is mainly used to store correction parameter, electric energy accumulated value etc.
Described microprocessor U1 is connected with electric capacity C3-C7, resistance R1, resistance R2, resistance R4, resistance R99, crystal oscillator Y1, electric capacity C9 and C10, the connection of each components and parts is as the latter half of Fig. 6 or Fig. 9.
Piezo-resistance RV2, splicing ear J4, splicing ear P3 are all connected with the pin 1 of described manganese copper diverter U2, described splicing ear P1 is connected with the pin 2 of described manganese copper diverter U2, the terminal I+ of manganese copper diverter U2 connects the pin 11 of microcontroller U1 by resistance R31, the terminal I-of manganese copper diverter U2 connects the pin 12 of microcontroller U1 by resistance R30; One end of electric capacity C18 connects the pin 11 of microcontroller U1, the other end ground connection of electric capacity C18; One end of described electric capacity C19 connects the pin 12 of microcontroller U1, the other end ground connection of electric capacity C19; One end of resistance R27 connects the pin 8 of microcontroller U1, the other end ground connection of resistance R27; One end of resistance R28 connects the pin 9 of microcontroller U1, the other end ground connection of resistance R28; One end after electric capacity C16 is parallel with one another with electric capacity C17 is connected the pin 10 of microcontroller U1, the other end ground connection after electric capacity C16 and electric capacity C17 is parallel with one another; Electric capacity C13 is connected the pin 5 of microcontroller U1 with the one end after electric capacity 14 parallel connection, the other end ground connection after electric capacity C13 and electric capacity 14 parallel connection; Electric capacity C12 is connected the pin 6 of microcontroller U1 with the one end after resistance R16 parallel connection, the other end ground connection after electric capacity C12 and resistance R16 parallel connection; One end of resistance R11 is connected the pin 7 of microcontroller U1 successively with resistance R15 by resistance R12, resistance R13, resistance R14; Electric capacity C15 is connected the pin 7 of microcontroller U1 with the one end after resistance R22 parallel connection, the other end ground connection after electric capacity C15 and resistance R22 parallel connection.
Described telecommunication circuit comprises optocoupler U3, resistance R32 ~ R33; The pin 4 of described optocoupler U3 connects power vd D by resistance R32, pin 3 ground connection of described optocoupler U3; The pin 1 of described optocoupler U3 connects power supply M_VDD by resistance R33.
Fig. 7 is the circuit diagram of telecommunication circuit, UART (Universal AsynchronousReceiver/Transmitter supported by D78F8053 microcontroller, Universal Asynchronous Receive/dispensing device) communication, can utilize use generally, RS-232 interface easily, realize the communication with destination object (as household electrical appliance master control borad).In the design, in order to eliminate the crosstalk between analog loopback and digital loop, avoiding communication to have an impact to measurement, taking circuit quarantine measures at communication interface place.
Domestic intelligent socket based on RF433 technical transmission of the present invention, is embedded in power transfer module, electric energy collection module and radio-frequency communication module at universal socket box.In the process that user uses, after 220V alternating current is linked into the domestic intelligent socket based on RF433 technical transmission, through described power transfer module, 220V alternating current is converted to 5V direct current and 220V alternating current, 5V direct current is that described electric energy collection module and described radio-frequency communication module are powered; 220V alternating current is powered for institute's survey household electrical appliance.Described electric energy collection module collection survey voltage, the current value calculate power consumption, active power, reactive power and power factor etc. that household electrical appliance use, transfer data to described RF433 radio-frequency communication module afterwards.Finally, RF433 radio-frequency communication module by surveyed transfer of data to user's receiving terminal.
Domestic intelligent socket based on RF433 technical transmission of the present invention, a kind of based on electric flux survey technology, microelectric technique, the novel low-cost domestic intelligent socket of digital communication technology exploitation, be applicable to air conditioner, microwave oven, washing machine, the all types of household appliances such as refrigerator, can Real-time Collection power consumption equipment work time voltage, current value, through algorithm process, calculate voltage effective value, current effective value, accumulative power consumption, active power, reactive power and power factor, and according to user's request, data are sent to receiving terminal in real time by RF433 technology communication module, sample frequency can reach once per second.
The present invention is directed to the present situation of current most of household appliances energy valid flag confusion, applicable family installs and uses, and is convenient to the power information that consumer knows household electrical appliances; The present invention also solves general character, the key technology difficult problem of household electrical appliances list product electric quantity metering, for the fusion of Smart Home and intelligent grid from now on lays the foundation.
Domestic intelligent socket based on RF433 technical transmission of the present invention, have can the work of Real-time Collection power consumption equipment time voltage, current value calculate power consumption, active power, reactive power and power factor, the electrical quantity of power consumption equipment is monitored in real time, is convenient to consumer and knows the advantages such as the power information of power consumption equipment.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present invention or essential characteristic, the present invention can be realized in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present invention is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the present invention.Any Reference numeral in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this specification is described according to execution mode, but not each execution mode only comprises an independently technical scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should by specification integrally, and the technical scheme in each embodiment also through appropriately combined, can form other execution modes that it will be appreciated by those skilled in the art that.

Claims (7)

1. based on the domestic intelligent socket of RF433 technical transmission, it is characterized in that, comprise box body, within described box body, be provided with power transfer module, electric energy collection module and radio-frequency communication module; The external 220V AC power of described power transfer module also exports 220V alternating current, and power transfer module is connected with electric energy collection module and provides+5V DC power supply for electric energy collection module; Described power transfer module is connected with described radio-frequency communication module and provides+5V DC power supply for radio-frequency communication module; Described electric energy collection module is connected with radio-frequency communication module, by electric energy collection module, gathered power information is sent to radio-frequency communication module, sends power information to external equipment by radio-frequency communication module.
2. the domestic intelligent socket based on RF433 technical transmission according to claim 1, is characterized in that, described power transfer module comprises transformer B, rectifier bridge BR, electric capacity C30-C33 and voltage stabilizing chip U10; The primary winding N1 of described transformer B connects 220V AC power, and the secondary coil N2 of described transformer B connects described voltage stabilizing chip U10 by described rectifier bridge BR; The positive pole of described electric capacity C30 connects the terminal Vin of voltage stabilizing chip U10, and the negative pole of described electric capacity C30 connects the terminal GND of voltage stabilizing chip U10; One end of described electric capacity C31 connects the terminal Vin of voltage stabilizing chip U10, and the other end of described electric capacity C31 connects the terminal GND of voltage stabilizing chip U10;
The positive pole of described electric capacity C32 connects the terminal Vout of voltage stabilizing chip U10, and the negative pole of described electric capacity C32 connects the terminal GND of voltage stabilizing chip U10; One end of described electric capacity C33 connects the terminal Vout of voltage stabilizing chip U10, and the other end of described electric capacity C33 connects the terminal GND of voltage stabilizing chip U10.
3. the domestic intelligent socket based on RF433 technical transmission according to claim 1, is characterized in that, described radio-frequency communication module comprises UHF transceiver U11, resistance R40, electric capacity C41-C415, inductance L 40 ~ L43, crystal oscillator Y40.
4. the domestic intelligent socket based on RF433 technical transmission according to claim 1, is characterized in that, described electric energy collection module comprises power-switching circuit, microcontroller U1, signal acquisition circuit and telecommunication circuit; Described power-switching circuit, signal acquisition circuit and telecommunication circuit are all connected with described microcontroller U1; Described power-switching circuit is used for AC power being converted to direct current, for described signal acquisition circuit, microcontroller U1 and telecommunication circuit provide power supply; Described signal acquisition circuit carries out voltage, current sample to the power supply signal of household electrical appliance; Described microcontroller U1, the voltage sample value sent for Received signal strength Acquisition Circuit and current sampling data, calculating voltage effective value, current effective value, energy value, active power, reactive power and power factor, and result of calculation is sent to telecommunication circuit; Described telecommunication circuit is used for result of calculation regularly to send to described radio-frequency communication module.
5. the domestic intelligent socket based on RF433 technical transmission according to claim 4, it is characterized in that, described power-switching circuit comprises power supply chip U4, current rectifying and wave filtering circuit and voltage stabilizing circuit; The input of described current rectifying and wave filtering circuit is connected with external power source, and the output of described current rectifying and wave filtering circuit is connected with described power supply chip U4, and described power supply chip U4 is connected with described voltage stabilizing circuit; Described current rectifying and wave filtering circuit comprises diode D4, resistance R20 and electric capacity EC2; Described voltage stabilizing circuit comprises electric capacity EC1, diode D1, diode D1 ~ D3, diode D5 ~ D6, electric capacity C1 ~ C2, electric capacity C20 ~ C21, electric capacity E1, inductance L 1 and chip VR1.
6. the domestic intelligent socket based on RF433 technical transmission according to claim 4, it is characterized in that, described signal acquisition circuit comprises manganese copper diverter U2, resistance R11 ~ R16, resistance R11 ~ R16, resistance R22, resistance R27 ~ R28, resistance R30 ~ R31, piezo-resistance RV2, electric capacity C12 ~ C19, splicing ear P1, splicing ear P3 and splicing ear J4.
7. the domestic intelligent socket based on RF433 technical transmission according to claim 4, is characterized in that, described telecommunication circuit comprises optocoupler U3, resistance R32 ~ R33; The pin 4 of described optocoupler U3 connects power vd D by resistance R32, pin 3 ground connection of described optocoupler U3; The pin 1 of described optocoupler U3 connects power supply M_VDD by resistance R33.
CN201510227618.6A 2015-05-06 2015-05-06 Smart home socket based on RF433 technology transmission Pending CN104836080A (en)

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