CN208984974U - A kind of indoor environment intelligent monitor system based on LabVIEW - Google Patents
A kind of indoor environment intelligent monitor system based on LabVIEW Download PDFInfo
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Abstract
A kind of indoor environment intelligent monitor system based on LabVIEW.Its composition includes: STM32F103 single-chip microcontroller (7), the STM32F103 single-chip microcontroller (7) connects CC2530 ZigBee communication module (12) simultaneously, DS18B20 temperature sensor (1), DHT22 humidity sensor (2), A/D converter (6), SD card circuit (8), SIM900A communication module (11), device control module (9), voltage detecting circuit (10), SIM900A communication module (11) the connection short message receives (13) and LABVIEW host computer (14), the LABVIEW host computer (14) connects data processing (15), data processing (15) connection display data (16), the A/D converter ( 6) amplifying circuit (5) are connected, the amplifying circuit (5) connects DART formaldehyde examination sensor (3) and MQ-2 smoke sensor device (4), and the utility model is monitored for indoor environment.
Description
Technical field:
The utility model relates to a kind of indoor environment intelligent monitor system based on LabVIEW.
Background technique:
Also become with continuous improvement of people's living standards, the requirement about environmental quality with the continuous development of science and technology
Must be higher and higher, under this tendency of the day, various enviromental monitoring equipments become the product of era development.In recent years, ecological
Environment is greatly developing work relevant to environmental protection simultaneously by more serious destruction, China, environment measuring technology
Achieve huge achievement.It is increasingly mature with computer and intelligent equipment, the drawbacks of traditional environment detection device increasingly
Obviously, traditional environmental detection set need to manually be read, and there are error and labor intensives for reading, due to being artificial reading so not
It can timely reflect the variation etc. of data.In order to effectively detect environmental quality, need to collect enough accurate datas, and
It manually can no longer meet these conditions.
Traditional environmental gas detection device can only react the measurement data at a certain moment, cannot be to data in a period of time
Variation carry out processing analysis, therefore, user wishes to occur a kind of device that can analyze processing a period of time gas data.
Traditional data detection device precision is not high enough, can not detect if the concentration of gas in environment is very low, and it is long when
Between can cause huge damage under this environment to human body, therefore the device that measurement accuracy is high, accuracy is good just meet the tendency of and
It is raw.
Summary of the invention:
Many index in air is detected using multiple sensors the purpose of the utility model is to provide a kind of, in
The STM32F103 single-chip microcontroller set can send the data to PC machine and mobile phone by SIM900A communication module, soft by LabVIEW
Part analysis is handled and is shown；One kind that STM32F103 single-chip microcontroller can control alarm equipment alarm when data are excessively high is based on
The indoor environment intelligent monitor system of LabVIEW.
Above-mentioned purpose is realized by following technical scheme:
A kind of indoor environment intelligent monitor system based on LabVIEW, composition includes: STM32F103 single-chip microcontroller (7),
The STM32F103 single-chip microcontroller (7) connects CC2530ZigBee communication module (12), DS18B20 temperature sensor simultaneously
(1), DHT22 humidity sensor (2), A/D converter (6), SD card circuit (8), SIM900A communication module (11), equipment control
Module (9), voltage detecting circuit (10), SIM900A communication module (11) the connection short message receive (13) and LABVIEW
Host computer (14), the LABVIEW host computer (14) connect data processing (15), and the data processing (15) connection is aobvious
Registration connects amplifying circuit (5) according to (16), the A/D converter (6), and the amplifying circuit (5) connects the inspection of DART formaldehyde
Survey sensor (3) and MQ-2 smoke sensor device (4).
A kind of indoor environment intelligent monitor system based on LabVIEW, the SIM900A communication module
(11) the connection DS18B20 temperature sensor (1), the DHT22 humidity sensor (2), the DART formaldehyde inspection
Survey sensor (3), the MQ-2 smoke sensor device (4).
A kind of indoor environment intelligent monitor system based on LabVIEW, the DS18B20 temperature sensor
No. 2 pins connect resistance R1, the DHT22 humidity sensor described in the resistance R1 connection, the resistance R1 connection can
Power transformation hinders VR1, variable resistance VR1 connection the capacitor C1, described capacitor C1 connection integrated circuit U1, LTC1049, institute
Integrated circuit LTC1049 connection the resistance R2, the resistance R2 connection diode D1 and capacitor C2 stated, the integrated electricity
Road U1, LTC1049 connect transistor Q1.
A kind of indoor environment intelligent monitor system based on LabVIEW, transistor Q1 and integrated circuit U1A
Between connected by resistance R3, the transistor Q1 connection resistance R4, the integrated circuit U1A connection is described
Variable resistance RV1, the variable resistance RV1 connection resistance R2, the resistance R2 connection MQ-2 smog sensing
Device, the described MQ-2 smoke sensor device connection resistance R1, the transistor Q1 connection integrated circuit U1B, institute
The integrated circuit U1B connection diode D1 stated, the diode D1 connection resistance R5, the resistance R5 connection diode
D2, diode D2 connection signal the generator P1, resistance R5 the connection capacitor C1 and capacitor C2.
A kind of indoor environment intelligent monitor system based on LabVIEW, the resistance R1 connection diode D1,
Diode D1 connection capacitor C1, the capacitor C1 connection resistance R2, the capacitor C1 connection combined aural and visual alarm
Emitter BG1, the emitter BG2 connection capacitor C2 of the combined aural and visual alarm, capacitor C3, diode D2, resistance R3, it is described
Diode D2 connection resistance R4, the resistance R3 connection capacitor C2, the described capacitor C3 connection resistance R6 are described
Resistance R6 connection resistance R7 and capacitor C4, resistance R6 connecting triode Q3, the triode Q3 connection resistance R5,
Resistance R5 connection the limit switch LS1, the triode Q3 connecting triode Q4.
A kind of indoor environment intelligent monitor system based on LabVIEW, the resistance R1 connection host computer, institute
The resistance R1 connection resistance R3 stated, the described resistance R1 connection integrated circuit U, the described integrated circuit U connection resistance R2 are described
Resistance R2 connection integrated circuit U2, resistance R2 connection diode D1, the diode D1 connection diode D2,
The described resistance R2 connection resistance R4, the described resistance R4 connection resistance R5, the resistance R3 connection resistance R6, the electricity
Hinder R5 connection integrated circuit U3, integrated circuit U3 connection the resistance R7, the resistance R7 connection resistance R9 and capacitor
C2, the described resistance R9 connection capacitor C1, the resistance R9 connection integrated circuit UA, the integrated circuit UA connection resistance
R8, the resistance R8 connection resistance R10, the connection, the integrated circuit UA connection capacitor C1.
A kind of indoor environment intelligent monitor system based on LabVIEW, the capacitor C1 connection SD card circuit,
Capacitor C1 connection the integrated circuit U1, the integrated circuit U1 connection resistance R1 and resistance R2, the resistance R1 with
Resistance R2 connection the capacitor C2, capacitor C2 the shunt capacitance C3, the capacitor C3 parallel resistance R3.
A kind of indoor environment intelligent monitor system based on LabVIEW, the resistance R1 connection capacitor C1, institute
Capacitor C1 connection the resistance R2, the resistance R1 stated connect integrated circuit U1, the integrated circuit with the resistance R2
U1 connection capacitor C2, resistance R3, capacitor C5, capacitor C6, inductance L1, capacitor C5 connection the resistance R5, the resistance R3
Connect diode D1, diode D1 connection the capacitor C4, capacitor C4 connection the resistance R4, the resistance R4 and
The inductance L1 is all connected with capacitor C3.
The utility model has the advantages that
1. the utility model uses STM32F103 single-chip microcontroller as controller and SD card Extended RAM；It is single with 51
Piece machine is compared, and the operational capability of STM32F103 single-chip microcontroller is stronger, and storage volume is bigger, and modularization is stronger, is more suitable this system
For the function of collection and the processing of data.
2. the utility model includes multiple sensors, sensor can detect indices in air, enable users to
Enough fully understand the concentration of various gases in air.
3. the STM32F103 single-chip microcontroller built in the utility model can be sent to PC machine by SIM900A communication module data
With mobile phone, when the interior space is larger, wire transmission not only limits the measurement range of sensor, also reduces whole system
The above problem can be effectively avoided in flexibility and aesthetics, wireless transmission.
4. the utility model realizes the detection multiple positions in space by CC2530ZigBee communication module.
5. the utility model passes through LabVIEW software analyzing and processing data and shows, novel environment monitoring equipment
The concentration for not only needing to detect gas in environment with greater need for the Data Analysis Services measured, therefore passes through LABVIEW software
Analyzing and processing data is able to use family and makes finer understanding to indoor environment.
6. the utility model STM32F103 single-chip microcontroller can data be more than limit value control alarm equipment alarm, when in environment go out
When existing poisonous gas or temperature and humidity are more than limit value, user is easier to find the problem and makes corresponding measure.
Detailed description of the invention:
Attached drawing 1 is structural schematic diagram of this product based on LabVIEW indoor environment intelligent monitor system.
Attached drawing 2 is DS18B20 temperature sensor circuit figure.
Attached drawing 3 is DHT22 humidity sensor circuit figure.
Attached drawing 4 is DART formaldehyde examination sensor circuit figure.
Attached drawing 5 is the adjustable smog sensor circuit figure of MQ-2 sensitivity.
Attached drawing 6 is sound and light alarm circuit figure.
Attached drawing 7 is alternating voltage sampling circuit figure.
Attached drawing 8 is the interface circuit of SD card.
Attached drawing 9 is the power supply circuit of SIM900A communication module.
Attached drawing 10 is CC2530ZigBee communication module power circuit diagram.
Attached drawing 11 is the sensor institute measured data that LabVIEW host computer shows indoor different location.
Attached drawing 12 is the indoor each sensing data variation line chart of LabVIEW host computer display.
Specific embodiment:
Below in conjunction with the attached drawing of the utility model, the technical scheme in the embodiment of the utility model is carried out clear, complete
Site preparation description.
Embodiment 1:
A kind of indoor environment intelligent monitor system based on LabVIEW, composition includes: STM32F103 single-chip microcontroller (7),
The STM32F103 single-chip microcontroller (7) connects CC2530ZigBee communication module (12), DS18B20 temperature sensor simultaneously
(1), DHT22 humidity sensor (2), A/D converter (6), SD card circuit (8), SIM900A communication module (11), equipment control
Module (9), voltage detecting circuit (10), SIM900A communication module (11) the connection short message receive (13) and LABVIEW
Host computer (14), the LABVIEW host computer (14) connect data processing (15), and the data processing (15) connection is aobvious
Registration connects amplifying circuit (5) according to (16), the A/D converter (6), and the amplifying circuit (5) connects the inspection of DART formaldehyde
Survey sensor (3) and MQ-2 smoke sensor device (4).
SIM900A communication module (11) connection DS18B20 temperature sensor (1), the DHT22 are wet
Spend sensor (2), the DART formaldehyde examination sensor (3), the MQ-2 smoke sensor device (4).
Embodiment 2:
A kind of indoor environment intelligent monitor system based on LabVIEW described in embodiment 1, the DS18B20 temperature
No. 2 pins of sensor connect resistance R1, the resistance R1 connection DHT22 humidity sensor, the resistance R1
Connection variable resistance VR1, variable resistance VR1 connection the capacitor C1, the capacitor C1 connection integrated circuit U1,
LTC1049, integrated circuit LTC1049 connection the resistance R2, the resistance R2 connection diode D1 and capacitor C2, it is described
Integrated circuit U1, LTC1049 connect transistor Q1.
Embodiment 3:
A kind of indoor environment intelligent monitor system based on LabVIEW described in embodiment 1, transistor Q1 and integrated
It is connected between circuit U 1A by resistance R3, the transistor Q1 connection resistance R4, the integrated circuit U1A connection
The described variable resistance RV1, the variable resistance RV1 connection resistance R2, the resistance R2 connection MQ-2 cigarette
Mist sensor, the MQ-2 smoke sensor device connection resistance R1, the transistor Q1 connection integrated circuit
U1B, the described integrated circuit U1B connection diode D1, the diode D1 connection resistance R5, the resistance R5 connection two
Pole pipe D2, diode D2 connection signal the generator P1, resistance R5 the connection capacitor C1 and capacitor C2.
Embodiment 4:
A kind of indoor environment intelligent monitor system based on LabVIEW described in embodiment 3, the resistance R1 connection two
Pole pipe D1, the described diode D1 connection capacitor C1, the capacitor C1 connection resistance R2, the capacitor C1 connection acousto-optic report
The emitter BG1, emitter BG2 connection capacitor C2, the capacitor C3, diode D2, resistance of the combined aural and visual alarm of alert device
R3, the diode D2 connection resistance R4, the resistance R3 connection capacitor C2, the capacitor C3 connection resistance
R6, the resistance R6 connection resistance R7 and capacitor C4, the resistance R6 connecting triode Q3, the triode Q3 connection
Resistance R5, resistance R5 connection the limit switch LS1, the triode Q3 connecting triode Q4.
Embodiment 5:
A kind of indoor environment intelligent monitor system based on LabVIEW described in embodiment 3, in the resistance R1 connection
Position machine, the described resistance R1 connection resistance R3, the resistance R1 connection integrated circuit U, the integrated circuit U connection resistance
R2, the described resistance R2 connection integrated circuit U2, the resistance R2 connection diode D1, two pole of diode D1 connection
Pipe D2, the described resistance R2 connection resistance R4, the described resistance R4 connection resistance R5, the resistance R3 connection resistance R6, institute
The resistance R5 connection integrated circuit U3, integrated circuit U3 connection the resistance R7, the resistance R7 connection resistance R9 that state and
Capacitor C2, the described resistance R9 connection capacitor C1, the described resistance R9 connection integrated circuit UA, the integrated circuit UA connect
Connecting resistance R8, the resistance R8 connection resistance R10, the connection, the integrated circuit UA connection capacitor
C1。
Embodiment 6:
A kind of indoor environment intelligent monitor system based on LabVIEW as described in example 2, the capacitor C1 connection SD
Card circuit, capacitor C1 connection the integrated circuit U1, the integrated circuit U1 connection resistance R1 and resistance R2, the electricity
Resistance R1 connect capacitor C2, capacitor C2 the shunt capacitance C3, the capacitor C3 parallel resistance R3 with the resistance R2.
Embodiment 7:
A kind of indoor environment intelligent monitor system based on LabVIEW described in embodiment 5, the resistance R1 connection electricity
Hold C1, capacitor C1 connection the resistance R2, the resistance R1 connect integrated circuit U1, the collection with the resistance R2
Capacitor C2, resistance R3, capacitor C5, capacitor C6, inductance L1 are connected at circuit U 1, and the described capacitor C5 connection resistance R5 is described
Resistance R3 connection diode D1, the described diode D1 connection capacitor C4, the capacitor C4 connection resistance R4, the resistance
R4 and the inductance L1 are all connected with capacitor C3.
Embodiment 8:
A kind of indoor environment intelligent monitor system based on LabVIEW described in embodiment 1, DS18B20 temperature sensor
(1), DHT22 humidity sensor (2), DART formaldehyde examination sensor (3), MQ-2 smoke sensor device (4), amplifying circuit (5), A/
D converter (6), STM32F103 single-chip microcontroller (7), SD card circuit (8), device control module (9), voltage detecting circuit (10),
SIM900A communication module (11), CC2530ZigBee communication module (12), short message receive (13), LABVIEW host computer (14),
Data processing (15), display data (16).
The DART formaldehyde detector passes through A/D converter and STM32F103 single-chip microcontroller phase by amplifying circuit respectively
Even, DS18B20 temperature sensor, DHT22 humidity sensor, MQ-2 smoke sensor device are directly connected with STM32F103 single-chip microcontroller.
The DS18B20 temperature sensor, DHT22 humidity sensor, DART formaldehyde detector, MQ-2 smoke sensor device
Temperature, humidity, concentration of formaldehyde, the smokescope in room air are detected respectively, and the data that will test pass through
Serial ports is transmitted to be saved in the STM32F103 single-chip microcontroller of SD card Extended RAM.
The light, voice guard are connected with STM32F103 single-chip microcontroller, and are more than limit value in sensor data measured
Alarm.
The STM32F103 single-chip microcontroller transmits information to PC machine and mobile phone by SIM900A communication module.
The LabVIEW software handles PC machine and the data that mobile phone receives, and shows.
There are multiple the sensors to be located at indoor different location, passes through CC2530ZigBee communication module and STM32F103
Single-chip microcontroller is connected, and then detects entire indoor environment.
Novel environment measuring equipment is gradually appeared, novel equipment is compared with traditional equipment, in automation, intelligence
Have with networking degree compared with quantum jump, novel equipment being capable of real-time accurate detection environmental data.
Embodiment 9:
A kind of indoor environment intelligent monitor system based on LabVIEW described in embodiment 1, including DS18B20 temperature pass
Sensor, DHT22 humidity sensor, DART formaldehyde examination sensor, MQ-2 smoke sensor device, amplifying circuit, A/D converter,
STM32F103 single-chip microcontroller, device control module, voltage detecting circuit, SIM900A communication module, CC2530 ZigBee communicate mould
Block, short message reception, LabVIEW host computer, data processing, display data.Sensor in system includes DS18B20 temperature sensing
Device, DHT22 humidity sensor, DART formaldehyde examination sensor, MQ-2 smoke sensor device, function are in detection indoor environment
Temperature, humidity, formaldehyde and smokescope.STM32F103 single-chip microcontroller in system by serial ports connect sensor to data into
Row operation simultaneously controls alarm sounding when data are more than limit value.It, will in order to increase the measurement range and accuracy of device systems
DS18B20 temperature sensor, DHT22 humidity sensor, DART formaldehyde examination sensor, MQ-2 smoke sensor device each three be put in
Different location, then sent data on STM32F103 single-chip microcontroller by CC2530ZigBee communication module respectively,
STM32F103 single-chip microcontroller connects SIM900A communication module by serial ports, sends data to PC machine and mobile phone.Equipment controls mould
Block is voice guard and visual alarm, and function is that cooperation STM32F103 single-chip microcontroller makes whistle, light flash etc. instead
It answers；LabVIEW software data are analyzed and processed and will analysis treated that data are supplied to user.
Embodiment 10:
A kind of indoor environment intelligent monitor system based on LabVIEW described in embodiment 1, including DS18B20 temperature pass
Sensor, DHT22 humidity sensor, DART formaldehyde examination sensor, MQ-2 smoke sensor device, amplifying circuit, A/D converter,
STM32F103 single-chip microcontroller, device control module, voltage detecting circuit, SIM900A communication module, CC2530 ZigBee communicate mould
Block, short message reception, LabVIEW host computer, data processing, display data.
This system is characterized in that detecting temperature with DS18B20 temperature sensor, since DS18B20 temperature sensor can
With output digit signals, so not needing amplifying circuit and A/D converter.When DS18B20 temperature sensor is supplied in external power supply
When electric, the VDD pin of DS18B20 introduces working power, does not need strong pull-up I/O line at this time, and source current is sufficient, conversion essence
Degree is enough.
Humidity is detected with DHT22 humidity sensor, since DHT22 humidity sensor can be with output digit signals, so not
Need amplifying circuit and A/D converter.DHT22 humidity sensor can transmit 40bit data, wherein high 16bit is humidity number
According to.
This system detects concentration of formaldehyde with DART formaldehyde examination sensor, as LTC1049 is operation amplifier in Fig. 4 circuit
Device, voltage-stabiliser tube D1 stablize anode voltage in 5V or so, and R1 and the hand adjustment resistance RV1 adduction for being connected into circuit part are feedback electricity
Resistance, function is the amplification factor for controlling operational amplifier, by adjusting amplification factor, that is, adjustable DART of operational amplifier
Formaldehyde examination sensor.In order to increase circuit accuracy, C1, C2 capacitor of filter function are increased.
This system detects smokescope with MQ-2 smoke sensor device, since MQ-2 smoke sensor device exports analog quantity, so
Additional amplifying circuit and A/D converter is needed to convert digital quantity for data, such as resistance inside MQ-2 smoke sensor device in Fig. 5 circuit
Value and the expression formula of gas concentration C are that wherein constant m is that sensitivity changes with gas concentration to Log R=mlog C+n
Value, n are related with gas detection sensitivity；When smokescope increases, the voltage between sensor 4,6 feet is increased, through oversampling circuit
Two voltage values of DOUT and AOUT are exported afterwards, and wherein AOUT plays corrective action, as DOUT ≠ AOUT, becomes by adjusting sliding
Device RV1 is hindered to change amplifying circuit output valve, until DOUT=AOUT.
The device control module of this system includes combined aural and visual alarm；As Fig. 6 combined aural and visual alarm internal low-frequency Sasser by
BG1, BG2 composition, low frequency oscillation wave are disconnected to BG3 base stage by capacitor C3 resistance R6；When BG2 pipe cut-off when, BG2 collector by
Low level is increased to high level, this positive pulse increases BG3 positive bias, and sound frequency increases.Conversely, BG2 exports negative arteries and veins
Punching, sound frequency reduce, and when positive negative pulse stuffing alternate transport, alarm will issue continuous alarm sound.
This system voltage detecting circuit is used to detect supply voltage, it is therefore an objective to prevent circuit when overtension from damaging, electricity
The size of supply voltage can be monitored in real time in pressure detection circuit, since supply voltage is 220V alternating current, so voltage detecting is electric
Road needs signal adjustment circuit, and detected signal peak-peak value is controlled within 3.3V；Design circuit as shown in Figure 7,
Middle R1 is high-power current-limiting resistance, and UH1 is model ZMPT100, no-load voltage ratioCurrent transformer, specified input is for electric current
2mA, effect are transmitting current signals and are isolated from voltage out electric current；U1 follows for voltage order one, and function is by mutual inductance
The current signal of device output is converted into voltage signal, and when input resistance is very big, output resistance is smaller, therefore late-class circuit is to letter
Number generate influence very little, can be ignored, U2, U3 can by U1 export voltage signal be converted into steamed bun wave；U4 is played
Filter function prevents the noise jamming other than cutoff frequency；Finally add the diode with clamper defencive function.
Current transformer voltage rating position 2mA, the sine wave that nominal input voltage is 311 volts of peak value, current-limiting resistance R1=
220V/2mA≈100K；It can be obtained by circuit:
Uout=2 × U2
Since the STM32 single-chip microcontroller nominal input voltage selected is 3.3V, foregoing circuit input voltage is less than 3.3V,
Can choose R2 is 1K ohm.
This system DART formaldehyde detector, MQ-2 smoke sensor device by amplifying circuit pass through respectively A/D converter with
STM32F103 single-chip microcontroller is connected；The DS18B20 temperature sensor, DHT22 humidity sensor directly with STM32F103 monolithic
Machine is connected.
Since electric current is smaller between sensor and A/D converter, in order to increase accuracy of measurement, smoke sensor device MQ-2 with
Increase an amplifying circuit between A/D converter and be used to amplify electric current, electric current leads to converter by amplification again and is converted into counting
Font number.
This system passes through DS18B20 temperature sensor, DHT22 humidity sensor, DART formaldehyde detector, MQ-2 smog
The number that sensor is detected to temperature, humidity, concentration of formaldehyde, the smokescope in room air respectively, and be will test
It is saved according to being transmitted in STM32F103 single-chip microcontroller by serial ports；Need to increase SD card extension STM32F103 since data are more
Single-chip microcontroller memory, connection type are shown in such as Fig. 8.
The wireless transmission function and PC machine and mobile phone that the STM32F103 single-chip microcontroller of this system passes through SIM900A communication module
It is connected.As shown in figure 9, the power supply line of the external 5V of SIM900A communication module, inside is turned 5V voltage by power supply input circuit
It is added on chip again after changing 4V voltage into, this circuit is realized using linear voltage regulator, VBAT is output voltage, in input voltage value
It changes when there is a big difference with output voltage into switching regulator.
This system adds additional above-mentioned DS18B20 temperature sensor, DHT22 humidity sensor, DART formaldehyde examination
Device, every kind of MQ-2 smoke sensor device each three；The sensor of these four different function and a CC2530ZigBee communication module
A set of measuring device is constituted by serial ports, this system transmits data using the hub-and-spoke configuration of three coordinators, one terminal, i.e., and three
It covers above-mentioned measuring device and is distributed in indoor different location, pass through the CC2530ZigBee communication module on STM32F103 single-chip microcontroller
Realize the wireless transmission between STM32F103 single-chip microcontroller and measuring device；When using this system, by CC2530ZigBee communication module
External 12V power supply, voltage is down to after 5V by internal MP1583 voltage conversion circuit is supplied to inside chip, as shown in Figure 10.
The alarm of this system is connected with STM32F103 single-chip microcontroller, and in the excessively high alarm of sensor data measured.When out
When existing epidemic disaster, methane smokescope are more than limit value, the pin that STM32F103 single-chip microcontroller is connected with warning circuit exports high
Level, warning circuit alarm.
This system is handled the data that PC machine receives by LabVIEW software, and is shown.
Embodiment 11:
A kind of indoor environment intelligent monitor system based on LabVIEW described in embodiment 1, composition include DS18B20
Temperature sensor, DHT22 humidity sensor, DART formaldehyde examination sensor, MQ-2 smoke sensor device, amplifying circuit, A/D conversion
Device, device control module, STM32F103 single-chip microcontroller, voltage detecting circuit, SIM900A communication module, CC2530ZigBee are logical
Interrogate module, short message reception, LabVIEW host computer, data processing, display data.DS18B20 temperature sensor built in it is used for
Detect indoor temperature and humidity, built in DHT22 humidity sensor for detecting indoor humidity, built in DART formaldehyde sensing
Device for detecting indoor formaldehyde concentration, built in MQ-2 smoke sensor device for detecting indoor smokescope.
The performance of system can be enhanced in its internal voltage detecting circuit, amplifying circuit.The voltage detecting circuit can be with
The size of real-time monitoring supply voltage, since supply voltage is 220V alternating current, so voltage detecting circuit needs signal to adjust
Circuit controls detected signal peak-peak value within 3.3V.
When temperature, humidity, concentration of formaldehyde, the smokescope in air are more than limit value, STM32F103 single-chip microcontroller can be controlled
Alarm equipment alarm processed.
With having the plastic shell of air hole for DS18B20 temperature sensor, DHT22 humidity sensor, DART formaldehyde examination
Sensor, MQ-2 smoke sensor device, the protection of CC2530ZigBee communication module are in inside.Multiple above-mentioned apparatuses are placed on room
Interior multiple positions that need to be detected analyze entire indoor gaseous environment by the measurement of multiple positions.
User can choose mobile phone or PC machine as portable equipment, wherein the LabVIEW software of PC machine can to data into
Row analysis is handled and is shown.Such as device described in embodiment 4 is respectively set in four corners of house roof of cuboid,
The data measured are sent to PC machine or mobile phone by four devices, and the LabVIEW in PC can do following analysis 1, show respectively
Temperature, humidity, concentration of formaldehyde, the smokescope that four devices measure.2, four devices is taken to take the detection data of same substance
Value of the average value as this data in environment, and line chart is drawn, the temperature as measured by four devices is averaged, and is drawn
Temperature line chart out.It should be temperature and humidity measured by aforementioned four device, gas concentration at last LabVIEW host computer interface,
And four line charts.
Claims (8)
1. a kind of indoor environment intelligent monitor system based on LabVIEW, composition includes: STM32F103 single-chip microcontroller (7),
It is characterized in: the STM32F103 single-chip microcontroller (7) while connects CC2530 ZigBee communication module (12), DS18B20 temperature
Sensor (1), A/D converter (6), SD card circuit (8), SIM900A communication module (11), is set DHT22 humidity sensor (2)
Standby control module (9), voltage detecting circuit (10), SIM900A communication module (11) the connection short message receive (13) and
LABVIEW host computer (14), the LABVIEW host computer (14) connect data processing (15), the data processing (15)
Connection display data (16), the A/D converter (6) connect amplifying circuit (5), and the amplifying circuit (5) connects DART
Formaldehyde examination sensor (3) and MQ-2 smoke sensor device (4).
2. a kind of indoor environment intelligent monitor system based on LabVIEW according to claim 1, it is characterized in that: described
SIM900A communication module (11) the connection DS18B20 temperature sensor (1), the DHT22 humidity sensor (2),
The DART formaldehyde examination sensor (3), the MQ-2 smoke sensor device (4).
3. a kind of indoor environment intelligent monitor system based on LabVIEW according to claim 1, it is characterized in that: described
No. 2 pins of DS18B20 temperature sensor connect resistance R1, the DHT22 humidity sensor described in the resistance R1 connection,
The described resistance R1 connection variable resistance VR1, the variable resistance VR1 connection capacitor C1, the capacitor C1 connection are integrated
Circuit U 1, LTC1049, integrated circuit LTC1049 connection the resistance R2, the resistance R2 connection diode D1 and capacitor
C2, described integrated circuit U1, LTC1049 connect transistor Q1.
4. a kind of indoor environment intelligent monitor system based on LabVIEW according to claim 1, it is characterized in that: crystal
It is connected between triode Q1 and integrated circuit U1A by resistance R3, the transistor Q1 connection resistance R4, the collection
At the variable resistance RV1 described in circuit U 1A connection, the variable resistance RV1 connection resistance R2, the resistance R2 connection institute
The MQ-2 smoke sensor device stated, the MQ-2 smoke sensor device connection resistance R1, the transistor Q1 company
Meet integrated circuit U1B, the described integrated circuit U1B connection diode D1, the diode D1 connection resistance R5, the electricity
Hinder R5 connection diode D2, diode D2 connection signal the generator P1, the resistance R5 connection capacitor C1 and capacitor
C2。
5. a kind of indoor environment intelligent monitor system based on LabVIEW according to claim 4, it is characterized in that: described
Resistance R1 connection diode D1, the described diode D1 connection capacitor C1, the capacitor C1 connection resistance R2, the electricity
Hold the emitter BG1, emitter BG2 connection capacitor C2, the capacitor C3, two of the combined aural and visual alarm of C1 connection combined aural and visual alarm
Pole pipe D2, resistance R3, the diode D2 connection resistance R4, the resistance R3 connection capacitor C2, the electricity
Hold C3 connection resistance R6, the resistance R6 connection resistance R7 and capacitor C4, the described resistance R6 connecting triode Q3 is described
Triode Q3 connection resistance R5, resistance R5 connection the limit switch LS1, the triode Q3 connecting triode Q4.
6. a kind of indoor environment intelligent monitor system based on LabVIEW according to claim 4, it is characterized in that: described
Resistance R1 connection host computer, the described resistance R1 connection resistance R3, the resistance R1 connection integrated circuit U, the collection
Resistance R2, the described resistance R2 connection integrated circuit U2 are connected at circuit U, and the described resistance R2 connection diode D1 is described
Diode D1 connection diode D2, the described resistance R2 connection resistance R4, the resistance R4 connection resistance R5, the resistance
R3 connection resistance R6, the described resistance R5 connection integrated circuit U3, the integrated circuit U3 connection resistance R7, the resistance
R7 connection resistance R9 and capacitor C2, the described resistance R9 connection capacitor C1, the described resistance R9 connection integrated circuit UA are described
Integrated circuit UA connection resistance R8, the resistance R8 connection resistance R10, the connection, the integrated circuit UA connection
The capacitor C1.
7. a kind of indoor environment intelligent monitor system based on LabVIEW according to claim 3, it is characterized in that: described
Capacitor C1 connection SD card circuit, capacitor C1 connection the integrated circuit U1, the integrated circuit U1 connection resistance R1 and
Resistance R2, the resistance R1 and the resistance R2 connect capacitor C2, the capacitor C2 shunt capacitance C3, the capacitor
C3 parallel resistance R3.
8. a kind of indoor environment intelligent monitor system based on LabVIEW according to claim 6, it is characterized in that: described
Resistance R1 connection capacitor C1, capacitor C1 connection the resistance R2, the resistance R1 and the resistance R2 connect integrated
Circuit U 1, the integrated circuit U1 connection capacitor C2, resistance R3, capacitor C5, capacitor C6, inductance L1, the capacitor C5 company
Connecting resistance R5, the described resistance R3 connection diode D1, the diode D1 connection capacitor C4, the capacitor C4 connection electricity
Resistance R4, the resistance R4 and the inductance L1 are all connected with capacitor C3.
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| CN201821725778.9U CN208984974U (en) | 2018-10-24 | 2018-10-24 | A kind of indoor environment intelligent monitor system based on LabVIEW |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110736506A (en) * | 2019-10-29 | 2020-01-31 | 青岛四方思锐智能技术有限公司 | Remote environment monitoring system and method |
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2018
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110736506A (en) * | 2019-10-29 | 2020-01-31 | 青岛四方思锐智能技术有限公司 | Remote environment monitoring system and method |
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