CN105116808B - A kind of electrical appliance safety intelligent device based on Internet of Things - Google Patents
A kind of electrical appliance safety intelligent device based on Internet of Things Download PDFInfo
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- CN105116808B CN105116808B CN201510570701.3A CN201510570701A CN105116808B CN 105116808 B CN105116808 B CN 105116808B CN 201510570701 A CN201510570701 A CN 201510570701A CN 105116808 B CN105116808 B CN 105116808B
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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
- G05B19/0425—Safety, monitoring
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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
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25314—Modular structure, modules
Abstract
The invention discloses a kind of electrical appliance safety intelligent device based on Internet of Things, including CPU, current transformer, sensor, network interface card, bluetooth and display screen；By the current waveform data of current transformer collection electrical appliance, CPU is AD converted after collecting current data, and computing identification is carried out after quantization；CPU receives the data sent by humiture, PM2.5, noise transducer successively, and is calculated as standard atmosphere, PM2.5, noise data unit；The above-mentioned data of display screen real-time display；These other data can also be uploaded onto the server in real time by network interface card, so that user is checked at any time by computer browser or cell phone application；Bluetooth is used to pass through control of the mobile phone to electrical appliance；It is of the invention safe condition and to be alarmed in Control Room in real time or make emergency processing automatically.
Description
Technical field
The invention belongs to electronic communication field, and in particular to a kind of electrical appliance safety intelligent device based on Internet of Things.
Background technology
The maximum potential safety hazard of indoor electric is electrical fire, the main reason for electrical fire occurs have electric leakage, short circuit and
Overload etc., the generation of these phenomenons can be all caused using high-power violation electrical equipment, electric wire aging generation fault electric arc etc..For big
Power amplifier identifies and arc-detection, has had some correlation techniques both at home and abroad, such as the Duffing oscillators in failure arc-detection
Signal detection, wavelet transformation and power analysis in Electrical Testing violating the regulations, wavelet analysis etc..Although identified now with many electrical equipment
The technology related to fault electric arc detection, but the few of practice is really committed to, electrical appliance identification and fault electric arc inspection
The product of survey is also few in number, and some only products are also only limitted to the transient state monitoring to electric current, and transient state characteristic presence is very strong
Randomness and contingency, there is a possibility that erroneous judgement is very big.So develop the electrical appliance that a kind of security is good, reliability is high
Safety control becomes very urgent.
The content of the invention
The present invention devises a kind of electrical appliance safe and intelligent dress based on Internet of Things for existing product and the deficiency of technology
Put, including the function such as electrical appliance identification, arc-detection, environmental monitoring and remote monitoring.The present invention adopts the following technical scheme that
Realize goal of the invention：
(1) electrical appliance intelligent identification technology
The present invention is entered by the use of the local space mode identification technology using the Fourier space of load current as characteristic value
The identification of row electrical appliance.Except reference model identification result in addition to, have also combined electrical appliance some other information such as power,
Digital filter etc. carries out the comprehensive identification of multidimensional information, to improve the accuracy rate of identification.It is divided into three steps to be identified, the first step
The primary current Wave data of electrical appliance is subjected to Fourier space computing, the sample data of operation result and each electrical appliance is entered
Row matching, draws the first similarity；Raw current data is carried out digital filtering by second step, and filtered waveform is similar to first
Degree is matched more than the sample data of the electrical equipment of certain value, draws the second similarity；3rd step calculates the work(of electrical appliance to be measured
Rate, and the performance number is met that the sample data of a range of electrical equipment is compared with the second similarity, and draw identification knot
Fruit.
(2) arc-detection technology
The arc-detection mode of the present invention uses the much information combination technology based on fuzzy logic, by the current wave of collection
Graphic data first carries out characteristic value combination, calculates its autoregression model coefficient, then in conjunction with the average value in data statistical approach and
Maximum carries out detection judgement.Autoregression model is established to current sampling data first, utilizes three rank maximum entropy spectrum algorithm (Burg
Algorithm) calculate Parameters of Autoregressive Models；Then the Parameters of Autoregressive Models by normal waveform in database and electric current to be measured
The Parameters of Autoregressive Models of signal calculates Euclidean distance square value, one of input that the result is combined as decision level, meter
When calculating and being worth the maximum difference with maximum, because each electrical appliance size of current has larger difference, so singly seeing that the difference is big
Small is difficult to judge, definition and the maximum difference of value and the average value of two cycles and value are used for maximum and value difference value ratio, press
The same manner calculates peak-peak difference ratio, and the two differences are used for the input of decision level combination；Finally by this three
Individual input association, carry out decision level combination according to certain rule and obtain judged result.
(3) environmental monitoring technology
The present invention can be in comprehensive monitoring room the environmental data such as temperature, humidity, PM2.5 indexes and noise.Using single total
Line digital hygro sensor DHT11 detects indoor PM2.5 as temperature and humidity acquisition module using the GP2Y1010AU0F of Sharp
Index, room noise intensity is monitored using high sensitivity Electret condenser microphone and Simulation scale-up circuit.
(4) technology of Internet of things
It is used to realize remote monitoring function, including ethernet technology and Bluetooth technology invention introduces technology of Internet of things,
Single-chip Fast Ethernet mac controller DM9000 and 2.4GHz low-power Bluetooth system single-chip CC2540 has been respectively adopted.
Beneficial effect：The present invention provides a good scheme to solve indoor electric disaster hidden-trouble.It can be comprehensive
Close and gather the environmental informations such as power information and humiture, PM2.5, noise such as indoor appliance type, arc fault, in real time monitoring
Indoor security situation is simultaneously alarmed or makes emergency processing automatically.Make user anywhere, as long as there is network, it is possible to logical
Cross computer browser or electrical appliance information, environmental information and fault electric arc information in cell phone application real time inspection room.
Brief description of the drawings
Fig. 1 is the circuit structure diagram of the present invention；
Fig. 2 (a) is the one-chip computer module circuit theory diagrams of the present invention；
Fig. 2 (b) is the single-chip microcomputer crystal oscillating circuit schematic diagram of the present invention；
Fig. 2 (c) is the single-chip microcomputer jtag interface circuit theory diagrams of the present invention；
Fig. 2 (d) is the reset circuit of SCM schematic diagram of the present invention；
Fig. 3 is the ethernet module circuit theory diagrams of the present invention；
Fig. 4 is the module circuit schematic of bluetooth 4.0 of the present invention；
Fig. 5 is the Temperature Humidity Sensor circuit theory diagrams of the present invention；
Fig. 6 is the noise detection module circuit theory diagrams of the present invention；
Fig. 7 is the PM2.5 sensor circuit schematic diagrams of the present invention；
Fig. 8 is the current transformer module circuit theory diagrams of the present invention；
Fig. 9 (a) is 5V the and 3.3V power module circuit schematics of the present invention；
Fig. 9 (b) is the A/D switching reference voltages circuit theory diagrams of the present invention；
Figure 10 is the TFT LCD module circuit schematic diagrams of the present invention；
Figure 11 is the software flow pattern of the present invention.
Embodiment
Below in conjunction with the accompanying drawings to the further detailed description of the present invention.
As shown in figure 1, a kind of electrical appliance safety intelligent device based on Internet of Things, including CPU, current transformer, sensing
Device, network interface card, bluetooth and display screen；The current waveform data of electrical appliance is gathered by current transformer, after CPU collects current data
It is AD converted, computing identification is carried out after quantization.CPU receives the data sent by humiture, PM2.5, noise transducer successively,
And it is calculated as standard atmosphere, PM2.5, noise data unit.The above-mentioned data of display screen real-time display.These other data also can
Uploaded onto the server in real time by network interface card, so that user is checked at any time by computer browser or cell phone application；Bluetooth is used to pass through
Control of the mobile phone to electrical appliance, such as switch of power supply etc..
Described CPU module circuit includes one-chip computer module circuit, single-chip microcomputer crystal oscillating circuit, single-chip microcomputer jtag interface circuit
And reset circuit of SCM；The wherein model STM32F103VET6 of single-chip microcomputer；
As shown in Fig. 2 (a), described one-chip computer module circuit includes single-chip microcomputer U1, six filter capacitors and a button
Battery.Single-chip microcomputer U1 the 10th, 19,20,27,37,49,74,94,99 pin all be grounded, single-chip microcomputer U1 the 11st, 28,50,
75th, 100 pin whole 3.3V power supplys, single-chip microcomputer U1 the 6th pin are connected with button cell BAT1 positive pole, and button cell BAT1's is negative
Pole is grounded, and single-chip microcomputer U1 the 21st pin is connected with the first filter capacitor C9 one end and meets VREF+, and the first filter capacitor C9's is another
One end is connected with single-chip microcomputer U1 the 27th pin, and the second filter capacitor C10 one end is connected and connect with single-chip microcomputer U1 the 22nd pin
VDDA, the second filter capacitor C10 other end are connected with single-chip microcomputer U1 the 27th pin, the 3rd filter capacitor C12 one end and list
Piece machine U1 the 28th pin connection, the 3rd filter capacitor C12 other end ground connection, the 4th filter capacitor C13 one end and single-chip microcomputer
U1 the 50th pin connection, the 4th filter capacitor C13 other end ground connection, the 5th filter capacitor C11 one end is with single-chip microcomputer U1's
75th pin connects, the 5th filter capacitor C11 other end ground connection, the 6th filter capacitor C5 one end and the 100th of single-chip microcomputer U1 the
Pin connects, the 6th filter capacitor C5 other end ground connection, single-chip microcomputer U1 1-5,7,18,23,24,52-54,60,63,64,
70th, 71,73,79,80,83,84,87,91-93,95-98 pin are hanging.
As shown in Fig. 2 (b), described single-chip microcomputer crystal oscillating circuit include 32.768KHz the first crystal oscillator Y1, one
8MHz the second crystal oscillator Y2 and 4 load capacitances；
First crystal oscillator Y1 one end is connected with single-chip microcomputer U1 the 8th pin, the first load capacitance C1 one end, the first crystal oscillator Y1
The other end be connected with single-chip microcomputer U1 the 9th pin, the second load capacitance C3 one end, the first load capacitance C1 other end and
Two load capacitance C3 other end ground connection, the second crystal oscillator Y2 one end and single-chip microcomputer U1 the 12nd pin, the 3rd load capacitance C2
One end is connected, and the second crystal oscillator Y2 other end is connected with single-chip microcomputer U1 the 13rd pin, the 4th load capacitance C4 one end, and the 3rd is negative
The other end of the other end and the 4th load capacitance C4 that carry electric capacity C2 is grounded.
As shown in Fig. 2 (c), described single-chip microcomputer jtag interface circuit includes four pull-up resistors and a connector；Connect
The model JTAG-20 of plug-in unit.
Connector J2 the 1st, 2 pin connect 3.3V power supplys, connector J2 the 19th pin connects 5V power supplys, connector J2 the 4th, 6,
8th, 10,12,14,16,18,20 pin are grounded, and connector J2 the 3rd pin is connected with single-chip microcomputer U1 the 90th pin, and the 5th of connector J2 the
Pin is connected with single-chip microcomputer U1 the 77th pin, and connector J2 the 7th pin is connected with single-chip microcomputer U1 the 72nd pin, connector J2 the 9th,
11 pin are connected with single-chip microcomputer U1 the 76th pin, and JTAG connectors J2 the 13rd pin is connected with single-chip microcomputer U1 the 89th pin, connector
J2 the 15th pin is connected with single-chip microcomputer U1 the 14th pin, and the first pull-up resistor R1 one end is connected with connector J2 the 3rd pin, the
One pull-up resistor R1 another termination 3.3V power supplys, the second pull-up resistor R2 one end are connected with connector J2 the 5th pin, and second
Pull-up resistor R2 another termination 3.3V power supplys, the 3rd pull-up resistor R3 one end is connected with connector J2 the 7th pin, on the 3rd
Pull-up resistor R3 another termination 3.3V power supplys, the 4th pull-up resistor R4 one end is connected with connector J2 the 13rd pin, on the 4th
Pull-up resistor R4 another termination 3.3V power supplys, connector J2 the 17th pin are hanging.
As shown in Fig. 2 (d), described reset circuit of SCM includes a resistance, a filter capacitor and a button.
A 5th pull-up resistor R5 termination 3.3V power supplys, the 5th pull-up resistor R5 other end and single-chip microcomputer U1 the 14th pin, the 7th
Filter capacitor C6 one end, button S2 one end connection, the 7th filter capacitor C6 other end and button S2 other end ground connection.
As shown in figure 3, described ethernet module circuit include network card chip, network transformer HR911105A, one
25MHz crystal oscillators Y3, two load capacitances, three filter capacitors and four current-limiting resistances；Network card chip model DM9000AE, net
Network transformer model HR911105A,
3rd crystal oscillator Y3 one end is connected with network card chip U6 the 43rd pin, the 3rd crystal oscillator the Y3 other end and network card chip
U6 the 44th pin connection, the 3rd crystal oscillator Y3 one end is connected with the 5th load capacitance C17 one end, the crystal oscillator Y3 other end and the
Six load capacitance C19 one end connection, the 5th load capacitance C17 other end and the 6th load capacitance C19 other end are grounded,
8th filter capacitor C20 one end is connected with the 2nd of network card chip U6 the, 9 pin, the 8th filter capacitor C20 other end ground connection, the
A nine filter capacitor C21 termination 3.3V power supplys, the 9th filter capacitor C21 other end ground connection, the one of the tenth filter capacitor C22
Terminate 3.3V power supplys, the tenth filter capacitor C22 other end ground connection, network transformer J4 the 1st pin and the 7th of network card chip U6 the
Pin is connected, and network transformer J4 the 2nd pin is connected with network card chip U6 the 8th pin, network transformer J4 the 3rd pin and network interface card core
Piece U6 the 3rd pin connection, network transformer J4 the 4th, 5 pin meet VCC2.5, network transformer J4 the 6th pin and network card chip U6
The connection of the 4th pin, network transformer J4 the 8th, 13,14 pin ground connection, the first current-limiting resistance R12 one end and network transformer J4
The connection of the 9th pin, the first current-limiting resistance R12 another termination 3.3V power supplys, the second current-limiting resistance R13 one end and network transformation
Device J4 the 12nd pin connection, the second current-limiting resistance R13 another termination 3.3V power supplys, network transformer J4 the 10th pin and network interface card
Chip U6 the 38th pin connection, network transformer J4 the 11st pin are connected with network card chip U6 the 39th pin, the 3rd current-limiting resistance
R18 one end is connected with network card chip U6 the 1st pin, the 3rd current-limiting resistance R18 other end ground connection, the 4th current-limiting resistance R15
One end be connected with network card chip U6 the 20th pin, the 4th current-limiting resistance R15 another termination 3.3V power supplys, network card chip U6's
5th, 6,15,33,41,45,47,48 pin ground connection, network card chip U6 the 18th, 17,16,14,13,12,11,10,31,29,28,
27th, 26,25,24,22 pin successively with single-chip microcomputer U1 the 61st, 62,81,82,38,39,40,41,42,43,44,45,46,55,
56th, 57 connection, the 23rd, 30, the 42 of network card chip U6 connects 3.3V power supplys, network card chip U6 the 19th, 46 pin it is hanging.
As shown in figure 4, the described modular circuit of bluetooth 4.0 includes Bluetooth chip M1, a filter capacitor, a current limliting electricity
Resistance and a light emitting diode；Bluetooth chip M1 model BLE HM-10；
Bluetooth chip M1 the 1st pin is connected with single-chip microcomputer U1 the 26th pin, and Bluetooth chip M1 the 2nd pin is with single-chip microcomputer U1's
25th pin connects, and Bluetooth chip M1 the 12nd pin connects 3.3V power supplys, Bluetooth chip M1 the 13rd, 14,21,22 pin ground connection, bluetooth
Chip M1 3-11,15-20,23,25-34 pin it is hanging, the tenth filter capacitor C18 one end and Bluetooth chip M1 the 12nd pin
Connection, the tenth filter capacitor C18 other end ground connection, the 5th current-limiting resistance R16 one end connects with Bluetooth chip M1 the 24th pin
Connect, the 5th current-limiting resistance R16 other end is connected with light emitting diode D2 one end, light emitting diode D2 other end ground connection.
Described sensor module circuitry includes Temperature Humidity Sensor circuit, noise detecting circuit, PM2.5 sensors electricity
Road.
As shown in figure 5, described Temperature Humidity Sensor circuit includes a digital hygro sensor and a pull-up electricity
Resistance；Digital hygro sensor model DHT11；
Digital hygro sensor U8 the 1st pin meets 5V power supplys, digital hygro sensor U8 the 2nd pin and single-chip microcomputer U1
The connection of the 51st pin, digital hygro sensor U8 the 3rd pin is hanging, digital hygro sensor U8 the 4th pin ground connection, the 6th
Pull-up resistor R20 one end is connected with digital hygro sensor U8 the 2nd pin, the 6th pull-up resistor R20 another termination 5V
Power supply.
As shown in fig. 6, described noise detecting circuit includes an integrated transporting discharging U7, an Electret condenser microphone, a limit
Leakage resistance, five filter capacitors, a polar capacitor, a switching diode and a potentiometer；Wherein integrated transporting discharging U7's
Model LM386；
Electret condenser microphone MK1 one end and the 11st filter capacitor C28 one end, the 6th current-limiting resistance R21 one end, the
12 filter capacitor C25 one end is connected, the Electret condenser microphone MK1 other end and the 11st filter capacitor C28 another termination
Ground, current-limiting resistance R21 another termination 5V power supplys, the 12nd filter capacitor C25 other end connect with integrated transporting discharging U7 the 3rd pin
Connect, integrated transporting discharging U7 the 2nd, 4 pin ground connection, integrated transporting discharging U7 the 6th pin connects 5V power supplys, the 13rd filter capacitor C23 one end
It is connected with integrated transporting discharging U7 the 1st pin, the 13rd filter capacitor C23 other end is connected with integrated transporting discharging U7 the 8th pin, and the tenth
A four filter capacitor C29 termination 5V power supplys, the 14th filter capacitor C29 other end ground connection, the 15th filter capacitor C26's
One end is connected with integrated transporting discharging U7 the 5th pin, the 15th filter capacitor C26 other end and switching diode D6 negative electrode, electricity
Position device RJ1 fixing end connection, switching diode D6 anode, potentiometer RJ1 another fixing end ground connection, potentiometer
RJ1 movable end is connected with single-chip microcomputer U1 the 17th pin, and the first polar capacitor C24 positive pole connects with integrated transporting discharging U7 the 7th pin
Connect, the first polar capacitor C24 negative pole ground connection.
As shown in fig. 7, described PM2.5 sensor circuits include a dust granules sensor J7, a polar capacitor
With a current-limiting resistance；Dust granules sensor J7 model GP2Y1010AU0F；
1st pin of the 7th current-limiting resistance R19 one end, the second polar capacitor C27 positive pole and dust granules sensor J7
Connection, current-limiting resistance R19 another termination 5V power supplys, the second polar capacitor C27 negative pole ground connection, dust granules sensor J7's
2nd, 4 pin are grounded, and dust granules sensor J7 the 6th pin meets 5V power supplys, dust granules sensor J7 the 3rd pin and single-chip microcomputer U1
The connection of the 48th pin, dust granules sensor J7 the 5th pin is connected with single-chip microcomputer U1 the 16th pin.
As shown in figure 8, described current transformer circuit include Hall current transformer U5, a relay, one three
Pole pipe, two binding posts, a commutation diode, two current-limiting resistances and a filter capacitor.
；Wherein Hall current transformer U5 model BJHCS-LSP3；Relay M2 model SRD-5VDC-SL-
A；
Hall current transformer U5 the 3rd pin is connected with single-chip microcomputer U1 the 15th pin, Hall current transformer U5 the 2nd pin
Ground connection, Hall current transformer U5 the 1st pin, the 16th filter capacitor C16 one end and Hall current transformer U5 1 pin connect
Connect and connect 3.3V power supplys, the 16th filter capacitor C16 other end is grounded, relay M2 the 3rd pin and triode Q1 current collection
Pole, commutation diode D4 anode connection, relay M2 the 2nd pin, commutation diode D4 negative electrode meet 5V power supplys, relay M2
The 1st pin be connected with the first binding post J5 the 1st pin, relay M2 the 4th pin and the second binding post J6 the 2nd pin connect
Connect, the first binding post J5 the 2nd pin and the second binding post J6 the 1st pin pass through Hall current transformer by a wire
U5 is connected, and triode Q1 grounded emitter, triode Q1 base stage is connected with the 8th current-limiting resistance R24 one end, the
The eight current-limiting resistance R24 other end is connected with single-chip microcomputer U1 the 65th pin；
Described power module includes 5V and 3.3V power modules, A/D switching reference voltages circuits.
As shown in Fig. 9 (a), described 5V and 3.3V power modules include voltage stabilizing chip, a microswitch, a power supply
Socket and two filter capacitors；Voltage stabilizing chip U12 model AMS1117；
Voltage stabilizing chip U2 the 1st pin is connected and connect with one end of the first filter capacitor C7 one end, the second filter capacitor C8
Ground, voltage stabilizing chip U2 the 2nd pin and the second filter capacitor C8 another termination 3.3V power supplys, voltage stabilizing chip U2 the 3rd pin and
One filter capacitor C7 another termination 5V power supplys, microswitch S1 the 1st pin and the 19th pin of connector connect, microswitch S1
The 2nd pin connect 5V power supplys, microswitch S1 the 3rd pin is connected with power outlet J1 the 1st pin, and power outlet J1 the 2nd pin connects
Ground.
As shown in Fig. 9 (b), described A/D switching reference voltages circuit include an inductance, two filter capacitors, three
Current-limiting resistance and a controllable accurate constant pressure source TL431；
An inductance L1 termination 3.3V power supplys, the inductance L1 other end, the 19th filter capacitor C14 one end and single-chip microcomputer
U1 the 22nd pin connection, the 19th filter capacitor C14 other end ground connection, constant pressure source U4 the 1st pin, the 20th filter capacitor
C15 one end, first resistor R11 one end ground connection, constant pressure source U4 the 3rd pin and the 9th current-limiting resistance R11 other end, the tenth
Current-limiting resistance R10 one end connection, the tenth current-limiting resistance R10 other end, the 20th filter capacitor C15 other end, the tenth
One current-limiting resistance R9 one end, constant pressure source U4 the 2nd pin are connected with single-chip microcomputer U1 the 21st pin, the 31st current-limiting resistance R9's
Another termination 5V power supplys.
As shown in Figure 10, described display panel module uses TFT-40 display screens J3.Display screen J3 the 1st pin ground connection, shows
Display screen J3 the 2nd pin connects 5V power supplys, and display screen J3 the 19th pin connects 3.3V power supplys, and display screen J3 the 4th pin is with single-chip microcomputer U1's
58th pin is connected, and display screen J3 the 5th pin is connected with single-chip microcomputer U1 the 86th pin, and display screen J3 the 6th pin is with single-chip microcomputer U1's
85th pin connects, and display screen J3 the 15th pin is connected with single-chip microcomputer U1 the 88th pin, display screen J3 21-28,7-14 pin according to
It is secondary with single-chip microcomputer U1 the 61st, 62,81,82,38-46,55,56,57 be connected, the of display screen J3 the 17th pin and single-chip microcomputer U1
34 pin connect, display screen J3 29-31,33,34 the 30th, 29,32,31,33 being connected successively with single-chip microcomputer U1.
As shown in figure 11, the course of work of the electrical appliance safety intelligent device based on Internet of Things is as follows：After upper electricity,
The module electricity such as STM32F103VET6 single-chip microcomputers initialization network interface card, FSMC buses, serial ports, bluetooth 4.0, A/D conversions, TFT liquid crystal
Road, allow them to normal work；The current waveform of electrical appliance is gathered by current transformer, after single-chip microcomputer collects current data
It is AD converted, computing identification is carried out after quantization；The voltage signal of PM2.5 modules collection passes to the A/D conversion ports of single-chip microcomputer,
After being converted into digital quantity, it is fitted with the characteristic curve of PM2.5 sensors, standard PM2.5 indexes is calculated after fitting；Noise
Signal through Electret condenser microphone is converted into faint voltage signal and is input to LM386 amplifiers being amplified, and is passed to single-chip microcomputer afterwards
A/D modular converters, after being converted into digital quantity, accurate noise figure is calculated as by certain algorithm；After having read above-mentioned data,
These data are written in TFT liquid crystal and shown by single-chip microcomputer by certain instruction sequences；Single-chip microcomputer judges that current network connects afterwards
State is connect, if network connection is normal, just these data are packed, then uploaded onto the server through DM9000AE network interface cards, is serviced
Device provides user's query interface, and user can check that current power, environment etc. are believed safely by computer browser or cell phone application
Breath；Electrical appliance control button is provided on TFT liquid crystal, user is given the button a slight press with felt pen, you can realize electrical appliance opening and
Close, the state of other electrical appliances in Bluetooth control room can also be passed through.
Described above is not the limitation to invention, and the present invention is also not limited to the example above, the common skill of the art
The variations, modifications, additions or substitutions that art personnel are made in the essential scope of the present invention, fall within the protection model of the present invention
Enclose.
Claims (1)
1. a kind of electrical appliance safety intelligent device based on Internet of Things, including CPU module circuit, current transformer module circuit,
Sensor module circuitry, ethernet module circuit, the modular circuit of bluetooth 4.0 and display panel module；By current transformer module electricity
Road gathers the current waveform data of electrical appliance, and CPU module circuit is AD converted after collecting current data, transported after quantization
Calculate identification；CPU module circuit receives the data sent by humiture, PM2.5, noise transducer successively, and is calculated as standard temperature
Humidity, PM2.5, noise data unit；The above-mentioned data of display panel module real-time display；These other data can also pass through Ethernet
Modular circuit uploads onto the server in real time, so that user is checked at any time by computer browser or cell phone application；The module of bluetooth 4.0
Circuit is used to pass through control of the mobile phone to electrical appliance；
It is characterized in that：Described CPU module circuit includes one-chip computer module circuit, single-chip microcomputer crystal oscillating circuit, single-chip microcomputer JTAG
Interface circuit and reset circuit of SCM；
Described one-chip computer module circuit includes single-chip microcomputer U1, six filter capacitors and a button cell；Wherein single-chip microcomputer
Model STM32F103VET6；Single-chip microcomputer U1 the 10th, 19,20,27,37,49,74,94,99 pin all be grounded, single-chip microcomputer U1
The 11st, 28,50,75,100 pin whole 3.3V power supplys, single-chip microcomputer U1 the 6th pin is connected with button cell BAT1 positive pole, knob
Battery BAT1 negative pole ground connection is detained, single-chip microcomputer U1 the 21st pin is connected with the first filter capacitor C9 one end and meets VREF+, and first
The filter capacitor C9 other end is connected with single-chip microcomputer U1 the 27th pin, and the of the second filter capacitor C10 one end and single-chip microcomputer U1
22 pin are connected and meet VDDA, and the second filter capacitor C10 other end is connected with single-chip microcomputer U1 the 27th pin, the 3rd filter capacitor
C12 one end is connected with single-chip microcomputer U1 the 28th pin, the 3rd filter capacitor C12 other end ground connection, the 4th filter capacitor C13's
One end is connected with single-chip microcomputer U1 the 50th pin, the 4th filter capacitor C13 other end ground connection, the 5th filter capacitor C11 one end
It is connected with single-chip microcomputer U1 the 75th pin, the 5th filter capacitor C11 other end ground connection, the 6th filter capacitor C5 one end and monolithic
Machine U1 the 100th pin connection, the 6th filter capacitor C5 other end ground connection, single-chip microcomputer U1 1-5,7,18,23,24,52-
54th, 60,63,64,70,71,73,79,80,83,84,87,91-93,95-98 pin are hanging；
Described single-chip microcomputer crystal oscillating circuit includes 32.768KHz the first crystal oscillator Y1,8MHz the second crystal oscillator Y2 and 4
Individual load capacitance；
First crystal oscillator Y1 one end is connected with single-chip microcomputer U1 the 8th pin, the first load capacitance C1 one end, and the first crystal oscillator Y1's is another
One end is connected with single-chip microcomputer U1 the 9th pin, the second load capacitance C3 one end, the first load capacitance C1 other end and second negative
Carry electric capacity C3 other end ground connection, the second crystal oscillator Y2 one end and single-chip microcomputer U1 the 12nd pin, the 3rd load capacitance C2 one end
Connection, the second crystal oscillator Y2 other end are connected with single-chip microcomputer U1 the 13rd pin, the 4th load capacitance C4 one end, the 3rd load electricity
The other end of the other end and the 4th load capacitance C4 that hold C2 is grounded；
Described single-chip microcomputer jtag interface circuit includes four pull-up resistors and a connector；The model JTAG- of connector
20；
Connector J2 the 1st, 2 pin connect 3.3V power supplys, connector J2 the 19th pin connects 5V power supplys, connector J2 the 4th, 6,8,
10th, 12,14,16,18,20 pin are grounded, and connector J2 the 3rd pin is connected with single-chip microcomputer U1 the 90th pin, connector J2 the 5th pin
It is connected with single-chip microcomputer U1 the 77th pin, connector J2 the 7th pin is connected with single-chip microcomputer U1 the 72nd pin, and the 9th, the 11 of connector J2
Pin is connected with single-chip microcomputer U1 the 76th pin, and JTAG connectors J2 the 13rd pin is connected with single-chip microcomputer U1 the 89th pin, connector J2
The 15th pin be connected with single-chip microcomputer U1 the 14th pin, the first pull-up resistor R1 one end is connected with connector J2 the 3rd pin, first
Pull-up resistor R1 another termination 3.3V power supplys, the second pull-up resistor R2 one end is connected with connector J2 the 5th pin, on second
Pull-up resistor R2 another termination 3.3V power supplys, the 3rd pull-up resistor R3 one end are connected with connector J2 the 7th pin, the 3rd pull-up
Resistance R3 another termination 3.3V power supplys, the 4th pull-up resistor R4 one end are connected with connector J2 the 13rd pin, the 4th pull-up
Resistance R4 another termination 3.3V power supplys, connector J2 the 17th pin are hanging；
Described reset circuit of SCM includes a resistance, a filter capacitor and a button；5th pull-up resistor R5's
One termination 3.3V power supplys, the 5th pull-up resistor R5 other end and single-chip microcomputer U1 the 14th pin, the 7th filter capacitor C6 one end,
Button S2 one end connection, the 7th filter capacitor C6 other end and button S2 other end ground connection；
Described ethernet module circuit include network card chip, network transformer HR911105A, a 25MHz crystal oscillators Y3, two
Load capacitance, three filter capacitors and four current-limiting resistances；Network card chip model DM9000AE, network transformer model
HR911105A,
3rd crystal oscillator Y3 one end is connected with network card chip U6 the 43rd pin, and the 3rd crystal oscillator Y3 other end is with network card chip U6's
44th pin connects, and the 3rd crystal oscillator Y3 one end is connected with the 5th load capacitance C17 one end, the crystal oscillator Y3 other end and the 6th negative
Electric capacity C19 one end connection is carried, the 5th load capacitance C17 other end and the 6th load capacitance C19 other end are grounded, and the 8th
Filter capacitor C20 one end and network card chip U6 the 2nd, 9 pin be connected, the 8th filter capacitor C20 other end ground connection, the 9th filter
A ripple electric capacity C21 termination 3.3V power supplys, the 9th filter capacitor C21 other end ground connection, a tenth filter capacitor C22 termination
3.3V power supplys, the tenth filter capacitor C22 other end ground connection, network transformer J4 the 1st pin connect with network card chip U6 the 7th pin
Connect, network transformer J4 the 2nd pin is connected with network card chip U6 the 8th pin, network transformer J4 the 3rd pin and network card chip U6
The connection of the 3rd pin, network transformer J4 the 4th, 5 pin meet VCC2.5, the of network transformer J4 the 6th pin and network card chip U6
4 pin connect, network transformer J4 the 8th, 13,14 pin ground connection, the of the first current-limiting resistance R12 one end and network transformer J4
9 pin connect, the first current-limiting resistance R12 another termination 3.3V power supplys, the second current-limiting resistance R13 one end and network transformer J4
The 12nd pin connection, the second current-limiting resistance R13 another termination 3.3V power supplys, network transformer J4 the 10th pin and network card chip
U6 the 38th pin connection, network transformer J4 the 11st pin are connected with network card chip U6 the 39th pin, the 3rd current-limiting resistance R18's
One end is connected with network card chip U6 the 1st pin, the 3rd current-limiting resistance R18 other end ground connection, the 4th current-limiting resistance R15 one end
Be connected with network card chip U6 the 20th pin, the 4th current-limiting resistance R15 another termination 3.3V power supplys, network card chip U6 the 5th, 6,
15th, 33,41,45,47,48 pin be grounded, network card chip U6 the 18th, 17,16,14,13,12,11,10,31,29,28,27,26,
25th, 24,22 pin successively with single-chip microcomputer U1 the 61st, 62,81,82,38,39,40,41,42,43,44,45,46,55,56,57 connect
Connect, the 23rd, 30, the 42 of network card chip U6 connects 3.3V power supplys, network card chip U6 the 19th, 46 pin it is hanging；
The described modular circuit of bluetooth 4.0 includes Bluetooth chip M1, a filter capacitor, a current-limiting resistance and one luminous two
Pole pipe；Bluetooth chip M1 model BLE HM-10；
Bluetooth chip M1 the 1st pin is connected with single-chip microcomputer U1 the 26th pin, Bluetooth chip M1 the 2nd pin and the 25th of single-chip microcomputer U1 the
Pin connects, and Bluetooth chip M1 the 12nd pin connects 3.3V power supplys, Bluetooth chip M1 the 13rd, 14,21,22 pin ground connection, Bluetooth chip
M1 3-11,15-20,23,25-34 pin it is hanging, the tenth filter capacitor C18 one end and Bluetooth chip M1 the 12nd pin connect
Connecing, the tenth filter capacitor C18 other end ground connection, the 5th current-limiting resistance R16 one end is connected with Bluetooth chip M1 the 24th pin,
The 5th current-limiting resistance R16 other end is connected with light emitting diode D2 one end, light emitting diode D2 other end ground connection；
Sensor module circuitry includes Temperature Humidity Sensor circuit, noise detecting circuit, PM2.5 sensor circuits；
Described Temperature Humidity Sensor circuit includes a digital hygro sensor and a pull-up resistor；Digital humiture passes
Sensor model DHT11；
Digital hygro sensor U8 the 1st pin connects 5V power supplys, and the of digital hygro sensor U8 the 2nd pin and single-chip microcomputer U1
51 pin connect, and digital hygro sensor U8 the 3rd pin is hanging, digital hygro sensor U8 the 4th pin ground connection, the 6th pull-up
Resistance R20 one end is connected with digital hygro sensor U8 the 2nd pin, the 6th pull-up resistor R20 another termination 5V power supplys；
Described noise detecting circuit includes an integrated transporting discharging U7, an Electret condenser microphone, a current-limiting resistance, five filtering
Electric capacity, a polar capacitor, a switching diode and a potentiometer；Wherein integrated transporting discharging U7 model LM386；
Electret condenser microphone MK1 one end and the 11st filter capacitor C28 one end, the 6th current-limiting resistance R21 one end, the 12nd
Filter capacitor C25 one end is connected, the Electret condenser microphone MK1 other end and the 11st filter capacitor C28 other end ground connection, limit
Leakage resistance R21 another termination 5V power supplys, the 12nd filter capacitor C25 other end are connected with integrated transporting discharging U7 the 3rd pin, collection
Into amplifier U7 the 2nd, 4 pin ground connection, integrated transporting discharging U7 the 6th pin connects 5V power supplys, the 13rd filter capacitor C23 one end with it is integrated
Amplifier U7 the 1st pin connection, the 13rd filter capacitor C23 other end are connected with integrated transporting discharging U7 the 8th pin, the 14th filtering
Electric capacity C29 one termination 5V power supplys, the 14th filter capacitor C29 the other end ground connection, the 15th filter capacitor C26 one end with
Integrated transporting discharging U7 the 5th pin connection, the 15th filter capacitor C26 other end and switching diode D6 negative electrode, potentiometer RJ1
The connection of a fixing end, switching diode D6 anode, potentiometer RJ1 another fixing end ground connection, potentiometer RJ1 work
Moved end is connected with single-chip microcomputer U1 the 17th pin, and the first polar capacitor C24 positive pole is connected with integrated transporting discharging U7 the 7th pin, and first
Polar capacitor C24 negative pole ground connection；
Described PM2.5 sensor circuits include a dust granules sensor J7, a polar capacitor and a current-limiting resistance；
Dust granules sensor J7 model GP2Y1010AU0F；
7th current-limiting resistance R19 one end, the second polar capacitor C27 positive pole are connected with dust granules sensor J7 the 1st pin,
Current-limiting resistance R19 another termination 5V power supplys, the second polar capacitor C27 negative pole ground connection, the 2nd, the 4 of dust granules sensor J7
Pin is grounded, and dust granules sensor J7 the 6th pin connects 5V power supplys, and the of dust granules sensor J7 the 3rd pin and single-chip microcomputer U1
48 pin are connected, and dust granules sensor J7 the 5th pin is connected with single-chip microcomputer U1 the 16th pin；
Current transformer circuit includes Hall current transformer U5, a relay, a triode, two binding posts, one
Individual commutation diode, two current-limiting resistances and a filter capacitor；
Wherein Hall current transformer U5 model BJHCS-LSP3；Relay M2 model SRD-5VDC-SL-A；
Hall current transformer U5 the 3rd pin is connected with single-chip microcomputer U1 the 15th pin, and Hall current transformer U5 the 2nd pin connects
Ground, Hall current transformer U5 the 1st pin, the 16th filter capacitor C16 one end are connected with Hall current transformer U5 1 pin
And 3.3V power supplys are connect, the 16th filter capacitor C16 other end ground connection, relay M2 the 3rd pin and triode Q1 colelctor electrode,
Commutation diode D4 anode connection, relay M2 the 2nd pin, commutation diode D4 negative electrode connect 5V power supplys, relay M2's
1st pin is connected with the first binding post J5 the 1st pin, and relay M2 the 4th pin is connected with the second binding post J6 the 2nd pin,
First binding post J5 the 2nd pin and the second binding post J6 the 1st pin pass through Hall current transformer U5 by a wire
Connecting, triode Q1 grounded emitter, triode Q1 base stage is connected with the 8th current-limiting resistance R24 one end, and the 8th
The current-limiting resistance R24 other end is connected with single-chip microcomputer U1 the 65th pin；
Power module includes 5V and 3.3V power modules, A/D switching reference voltages circuits；
Described 5V and 3.3V power modules include voltage stabilizing chip, a microswitch, a power outlet and two filtered electricals
Hold；Voltage stabilizing chip U2 model AMS1117；
Voltage stabilizing chip U2 the 1st pin is connected and is grounded with one end of the first filter capacitor C7 one end, the second filter capacitor C8, surely
Press chip U2 the 2nd pin and the second filter capacitor C8 another termination 3.3V power supplys, voltage stabilizing chip U2 the 3rd pin and the first filtering
Electric capacity C7 another termination 5V power supplys, microswitch S1 the 1st pin and the 19th pin of connector connect, and the 2nd of microswitch S1 the
Pin connects 5V power supplys, and microswitch S1 the 3rd pin is connected with power outlet J1 the 1st pin, power outlet J1 the 2nd pin ground connection；
It is controllable that described A/D switching reference voltages circuit includes an inductance, two filter capacitors, three current-limiting resistances and one
Accurate constant pressure source TL431；
An inductance L1 termination 3.3V power supplys, the inductance L1 other end, the 19th filter capacitor C14 one end are with single-chip microcomputer U1's
22nd pin connects, the 19th filter capacitor C14 other end ground connection, constant pressure source U4 the 1st pin, the 20th filter capacitor C15
One end, first resistor R11 one end ground connection, constant pressure source U4 the 3rd pin and the 9th current-limiting resistance the R11 other end, the tenth current limliting
Resistance R10 one end connection, the tenth current-limiting resistance R10 other end, the 20th filter capacitor C15 other end, the 11st limit
Leakage resistance R9 one end, constant pressure source U4 the 2nd pin are connected with single-chip microcomputer U1 the 21st pin, the 11st current-limiting resistance R9 other end
Connect 5V power supplys；
Described display panel module uses TFT-40 display screens J3；Display screen J3 the 1st pin ground connection, display screen J3 the 2nd pin connect
5V power supplys, display screen J3 the 19th pin connect 3.3V power supplys, and display screen J3 the 4th pin is connected with single-chip microcomputer U1 the 58th pin, display
Screen J3 the 5th pin is connected with single-chip microcomputer U1 the 86th pin, and display screen J3 the 6th pin is connected with single-chip microcomputer U1 the 85th pin, display
Screen J3 the 15th pin is connected with single-chip microcomputer U1 the 88th pin, display screen J3 21-28,7-14 pin successively with single-chip microcomputer U1 the
61st, 62,81,82,38-46,55,56,57 are connected, and display screen J3 the 17th pin is connected with single-chip microcomputer U1 the 34th pin, display screen
J3 29-31,33,34 the 30th, 29,32,31,33 being connected successively with single-chip microcomputer U1.
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| CN105552657A (en) * | 2016-02-23 | 2016-05-04 | 南京长江都市建筑设计股份有限公司 | Electric socket with anti-haze control function for residential building |
| WO2017214867A1 (en) * | 2016-06-15 | 2017-12-21 | 深圳市赛亿科技开发有限公司 | Electric safety management service system |
| CN106205020A (en) * | 2016-08-01 | 2016-12-07 | 安徽贝莱电子科技有限公司 | A kind of on and off switch based on Internet of Things |
| CN206281899U (en) * | 2016-12-29 | 2017-06-27 | 珠海奥释科技有限公司 | A kind of generating data acquisition Internet of Things uploads circuit and system |
| CN109062072A (en) * | 2018-09-19 | 2018-12-21 | 杭州华炳电子科技有限公司 | A kind of smart home monitor control system based on Internet of Things |
| CN109343386B (en) * | 2018-09-29 | 2024-02-09 | 杭州电子科技大学 | Three-phase circuit power monitoring device based on Internet of things |
| CN111391891A (en) * | 2019-01-02 | 2020-07-10 | 北京城建智控科技有限公司 | Turnout fault early warning method and device |
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| CN203310911U (en) * | 2013-06-20 | 2013-11-27 | 四川理工学院 | Multifunctional intelligent ammeter system based on Internet of Things |
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| CN104133411A (en) * | 2014-08-12 | 2014-11-05 | 江苏艾倍科科技有限公司 | Portable data acquisition instrument |
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Application publication date: 20151202 Assignee: HANGZHOU HUABING ELECTRONIC TECHNOLOGY Co.,Ltd. Assignor: HANGZHOU DIANZI University Contract record no.: X2020330000072 Denomination of invention: An intelligent device for electrical safety based on Internet of things Granted publication date: 20180223 License type: Common License Record date: 20200927 |
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