CN108593841A - A kind of air quality detection system based on NB-IOT Internet of Things - Google Patents
A kind of air quality detection system based on NB-IOT Internet of Things Download PDFInfo
- Publication number
- CN108593841A CN108593841A CN201810230442.3A CN201810230442A CN108593841A CN 108593841 A CN108593841 A CN 108593841A CN 201810230442 A CN201810230442 A CN 201810230442A CN 108593841 A CN108593841 A CN 108593841A
- Authority
- CN
- China
- Prior art keywords
- feet
- chip
- resistance
- connector
- capacitance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Automation & Control Theory (AREA)
- Medical Informatics (AREA)
- Combustion & Propulsion (AREA)
- Computing Systems (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention discloses a kind of air quality detection systems based on NB IOT Internet of Things, including CPU module, communication module, Liquid Crystal Module, key-press module, SIM card module, power module, detection of air quality module, clock module, Liquid Crystal Module, key-press module, communication module, detection of air quality module, clock module connect CPU module, communication module connects SIM card module, and power module provides power supply for each module.It has the following advantages：Can be compatible with any intelligent domestic system based on NB IOT standards structure, small external form volume design is easy for installation, can be compatible with the M35 modules for moving remote communication GSM/GPRS series；Fast response time, strong antijamming capability, service life is long, and noise is small, extremely low power dissipation.
Description
Technical field
The present invention relates to a kind of air quality detection systems based on NB-IOT Internet of Things, belong to electron detection device technology
Field.
Background technology
Air refers to being enclosed in atmosphere, it maintains the existence of the mankind and biology.Clean atmosphere is the mankind
One of the necessary condition of Lai Yu existence, a people does not have a meal within five weeks or does not drink water in 5 days, can still sustain life, but
More than 5 minutes no breathing air, will be dead, and human body needs the air of 10-12 cubic metres of sucking daily.Air have it is certain from
I is removed by self purification process of air from air, because natural process etc. enters the pollutant of air to maintain detergent power
Clean atmosphere.
But as industry and the continuous development of transportation, a large amount of harmful substance are discharged into air, change
The normal composition of air, makes air quality degenerate, health will be by shadow among we live in the air being contaminated
It rings, this just needs to detect air quality in time, to take measures in time to the air of pollution.
Current air quality detection system has the following problems：
1, volume is big, installs and uses inconvenience, and low-response can not be compatible with the M35 modules for moving remote communication GSM/GPRS series；
2, the reaction time is long, poor anti jamming capability, and power consumption is big；
3, sensitivity is low, and accuracy of detection is low, and stability is poor.
4, clocking capability output stability is low, and output error is big, less reliable.
Invention content
The problem to be solved in the present invention is to provide a kind of air based on NB-IOT Internet of Things for original technically deficiency
Quality detecting system, can be compatible with any intelligent domestic system based on NB-IOT standards structure, small external form volume design, peace
Dress is convenient, can be compatible with the M35 modules for moving remote communication GSM/GPRS series；Fast response time, strong antijamming capability, service life
Long, noise is small, extremely low power dissipation；High sensitivity, high-resolution, remarkable linear convergent rate, accuracy of detection is high, and stability is good；Normal
User intervention, the high-precision of full-automatic, full power environment compensation, highly reliable clocking capability are not required in temperature and wide temperature range.
To solve the above-mentioned problems, the present invention uses following technical scheme：
A kind of air quality detection system based on NB-IOT Internet of Things, including CPU module, communication module, Liquid Crystal Module, button
Module, SIM card module, power module, detection of air quality module, clock module, Liquid Crystal Module, key-press module, communication mould
Block, detection of air quality module, clock module connect CPU module, and communication module connects SIM card module, and power module is each mould
Block provides power supply.
Further, the CPU module includes chip U1,3 feet of the model STM8L052R8T6 of chip U1, chip U1
It is connected with the one end crystal oscillator Y1 and the one end capacitance C14,4 feet of chip U3 are connected with the crystal oscillator Y1 other ends and the one end capacitance C15, capacitance
The C14 other ends and capacitance C15 other ends ground connection；
1 foot of the chip U3 is connected with 2 feet of connector J3, and 1 foot of connector J3 accesses power supply+3.3V, and the 3 of connector J3
Foot is grounded, and 2 feet of chip U3 are connected with 4 feet of connector J3, the external internet ISP of connector J3.
Further, the liquid crystal display circuit includes triode Q1, and the base stage of triode Q1 is connected with the one end resistance R1
With the one end resistance R2, another termination+3.3V power supplys of resistance R2, the resistance R1 other ends connect 14 feet of chip U1, triode Q1's
The collector of emitter access+3.3V power supplys, triode Q1 is connected with 20 feet of connector J2, and the external LCD of connector J2 are patched
1 foot of part J2 is grounded, the 2 foot access+3.3V power supplys of connector J2,26 feet of the 4 feet connection chip U1 of connector J2, connector
27 feet of the 5 feet connection chip U1 of J2,28 feet of the 6 feet connection chip U1 of connector J2, the 7 feet connection chip U1 of connector J2
31 feet, 32 feet of the 8 feet connection chip U1 of connector J2,33 feet of the 9 feet connection chip U1 of connector J2, connector J2's
10 feet connect 34 feet of chip U1,35 feet of the 11 feet connection chip U1 of connector J2, the 12 feet connection chip U1 of connector J2
36 feet, 37 feet of the 13 feet connection chip U1 of connector J2,38 feet of the 14 feet connection chip U1 of connector J2, connector J2
15 feet connection chip U1 39 feet, 40 feet of the 16 feet connection chip U1 of connector J2,17 feet of connector J2 connect chip
41 feet of U1,42 feet of the 18 feet connection chip U1 of connector J2, connect between 3 feet of connector J2 and 19 feet of connector J2
There is swept resistance W1.
Further, the communication module includes chip U3A, and the model BC95 of chip U3A, chip U3A are wireless NB
Chip, 15 feet of chip U3A are connected with the collector of triode Q2, and the base stage of triode Q2 is connected with the one end resistance R30 and electricity
The one end R24 is hindered, the resistance R30 other ends connect 52 feet of chip U1, emitter and the resistance R24 other ends ground connection of triode Q2；
53 feet of chip U3A are connected with 1 foot of antenna J1, the 2 feet ground connection of antenna J1；45 feet of chip U3A and the connection access of 46 feet
45 feet of VBAT voltage sources, chip U3A are connected with the one end capacitance EC3, the one end capacitance C12, the one end capacitance C13, capacitance C3 mono-
End, the capacitance EC3 other ends, the capacitance C12 other ends, the capacitance C13 other ends, capacitance C3 other ends ground connection；The 30 of the chip U3A
Foot is connected with the one end resistance R3, the one end resistance R33, and the resistance R3 other ends are connected with 57 feet of chip U1, and the resistance R33 other ends connect
2 feet of connector J6 are connected to, 29 feet of chip U3A are connected with the one end resistance R4, the one end resistance R32, the connection of the resistance R4 other ends
There are 58 feet of chip U1, the resistance R32 other ends to be connected with 3 feet of connector J6, the 4 foot access+3.3V of connector J4, connector
1 foot of J6 is grounded, the external COM of connector J6.
Further, the SIM card module includes chip U4 and chip U5, the model ESDA6V8AV5 of chip U4, core
1 foot of the model MICROSIM clamshells of piece U5, chip U5 is connected with the one end capacitance C17 and the one end resistance R29, capacitance C17
The other end is grounded, and the resistance R29 other ends are connected with 40 feet of chip U3A；3 feet of chip U5 are connected with 42 feet of chip U3A；Core
4 feet of piece U5 are connected with the one end capacitance C18 and the one end resistance R28, capacitance C18 other ends ground connection, and the resistance R28 other ends are connected with
41 feet of chip U3A；5 feet of chip U5 are connected with the one end capacitance C19 and the one end resistance R27, capacitance C19 other ends ground connection, electricity
The resistance R27 other ends are connected with 30 feet of chip U3A；6 feet of chip U5 are connected with the one end capacitance C16, the one end capacitance C20 and chip
38 feet of U3A, the capacitance C16 other ends connect 42 feet of chip U3A, capacitance C20 other ends ground connection；
1 foot of the 1 foot connection chip U4 of the chip U5,3 feet of the 5 feet connection chip U4 of chip U5, the 4 feet connection of chip U5
5 feet of chip U4,4 feet of the 6 feet connection chip U4 of chip U5, the 2 feet ground connection of chip U4.
Further, the clock module includes chip U6, the 1 foot connection of the model SD3078 of chip U6, chip U6
Have the one end resistance R20, chip U1 45 feet, resistance R20 other end access+3.3V power supplys, 2 feet of chip U6 are connected with resistance
3 feet of the one end R19, resistance R19 other end access+3.3V power supplys, chip U6 are connected with the one end capacitance C9, the one end capacitance C22, and
Access+3.3V power supplys, the capacitance C9 other ends, capacitance C22 other ends ground connection, 5 feet of chip U6 are connected with the one end power supply BT1 and electricity
Hold the one end C23, the power supply BT1 other ends, capacitance C23 other ends ground connection, 7 feet of chip U6 are connected with the one end resistance R11, resistance
The one end R31,2 feet of another chip termination U1 of resistance R11, another termination+3.3V power supplys of resistance R31,8 feet of chip U6 are connected with
43 feet of the one end resistance R21 and chip U1, resistance R21 other end access+3.3V power supplys.
Further, the power module includes chip U2, and 2 feet of the model MIC29302 of chip U2, chip U2 connect
1 foot of chip U2 is connect, 2 feet of chip U2 are connected with the one end capacitance C1, the one end capacitance EC1, and access+5V power supplys, and+5V power supplys connect
It is connected to connector J4, connector J4 is used for external power supply, the capacitance C1 other ends, capacitance EC1 other ends ground connection, 3 feet of chip U2
Ground connection, 4 feet of chip U2 are connected with the one end resistance R22, the one end resistance R25, the one end capacitance EC2 and the one end capacitance C2, and export
VBAT voltage sources, the resistance R22 other ends are connected with the one end resistance R23, and connect 5 feet of chip U2, another terminations of resistance R23
Ground, the resistance R25 other ends are connected with the one end light emitting diode L1, and the other end of light emitting diode L1 is grounded, and capacitance EC2 is another
End, capacitance C2 other ends ground connection.
Further, the power module further includes voltage-stablizer Q3, the model MCP33 of voltage-stablizer Q3, the 3 of voltage-stablizer Q3
Foot accesses VBAT voltage sources, and 3 feet of voltage-stablizer Q3 are connected with the one end capacitance C21, capacitance C21 other ends ground connection, voltage-stablizer Q3
2 feet ground connection, the 1 foot output+3.3V voltages of voltage-stablizer Q3,1 foot of voltage-stablizer Q1 is connected with the one end capacitance C8, and capacitance C8 is another
End ground connection.
Further, the key-press module includes connector J5, and connector J5 is used for external connection keyboard KEY, and the 1 of connector J5
Foot is connected with the one end resistance R5 and the one end resistance R13, and the resistance R5 other ends are connected with 46 feet of chip U1, the resistance R13 other ends
+ 3.3V power supplys are connect, 2 feet of connector J5 are connected with the one end resistance R6 and the one end resistance R14, and the resistance R6 other ends are connected with chip
3 feet of 47 feet of U1, another termination+3.3V power supplys of resistance R14, connector J5 are connected with the one end resistance R7 and the one end resistance R15,
The resistance R7 other ends are connected with 48 feet of chip U1, another termination+3.3V power supplys of resistance R15, and 4 feet of connector J5 are connected with electricity
The one end R8 and the one end resistance R16 are hindered, the resistance R8 other ends are connected with 51 feet of chip U1, another termination+3.3V electricity of resistance R16
5 feet in source, connector J5 are connected with the one end resistance R9 and the one end resistance R17, and the resistance R9 other ends are connected with 49 feet of chip U1,
6 feet of another termination+3.3V power supplys of resistance R17, connector J5 are connected with the one end resistance R10 and the one end resistance R18, resistance R10
The other end is connected with 50 feet of chip U1, another termination+3.3V power supplys of resistance R18.
Further, the detection of air quality module includes connector J7, and 1 foot of connector J7 connects+5V power supplys, connects
2 feet of plug-in unit J7 are grounded, and 4 feet of connector J7 are connected with 22 feet of chip U1, and 5 feet of connector J7 are connected with the 23 of chip U1
6 feet of foot, connector J7 are connected with 60 feet of chip U1, and connector J7 is used for one gas of the six directions of external model PTQS-1005
Constitution quantity detection sensor, PTQS-1005 be used to measure the humiture of air, content of formaldehyde, VOC content, PM2.5 contents and
CO2 contents.
The present invention is had the following technical effect that compared with prior art using above technical scheme：
1, air quality detection system of the present invention can be simultaneous with any intelligent domestic system based on NB-IOT standards structure
Hold, small external form volume design is easy for installation；Fast response time, strong antijamming capability, service life is long, and noise is small, extremely low work(
Consumption；High sensitivity, high-resolution, remarkable linear convergent rate, accuracy of detection is high, and stability is good；
2, the CPU module long-term working stability is high, is hardly damaged, failure rate is low.
3, the clock module stable output signal is high, and for control errors in 0.2%, reliability is high, realize in room temperature and
User intervention, the high-precision of full-automatic, full power environment compensation, highly reliable clocking capability are not required in wide temperature range, according to different
Voltage be switched to VBAT from VDD automatically or be switched to VDD from VBAT.
The present invention is described in detail with reference to the accompanying drawings and examples.
Description of the drawings
Attached drawing 1 is the circuit diagram of CPU module in the embodiment of the present invention；
Attached drawing 2 is the circuit diagram of communication module in the embodiment of the present invention；
Attached drawing 3 is the circuit diagram of SIM card module in the embodiment of the present invention；
Attached drawing 4 is the circuit diagram of clock module in the embodiment of the present invention；
Attached drawing 5 is the circuit diagram of detection of air quality module in the embodiment of the present invention；
Attached drawing 6 is the circuit diagram of power module in the embodiment of the present invention；
Attached drawing 7 is the circuit diagram of Liquid Crystal Module in the embodiment of the present invention；
Attached drawing 8 is the circuit diagram of key-press module in the embodiment of the present invention.
Specific implementation mode
Embodiment 1, as shown in Figures 1 to 8, a kind of air quality detection system based on NB-IOT Internet of Things, including CPU
Module, communication module, Liquid Crystal Module, key-press module, SIM card module, power module, detection of air quality module, clock module,
Liquid Crystal Module, key-press module, communication module, detection of air quality module, clock module connect CPU module, communication module connection
SIM card module, power module provide power supply for each module.
The CPU module includes chip U1, and 3 feet of the model STM8L052R8T6 of chip U1, chip U1 are connected with crystalline substance
Shake the one end Y1 and the one end capacitance C14, and 4 feet of chip U3 are connected with the crystal oscillator Y1 other ends and the one end capacitance C15, and capacitance C14 is another
End and capacitance C15 other ends ground connection.
1 foot of the chip U3 is connected with 2 feet of connector J3, and 1 foot of connector J3 accesses power supply+3.3V, connector
3 feet of J3 are grounded, and 2 feet of chip U3 are connected with 4 feet of connector J3, the external internet ISP of connector J3.
The CPU module long-term working stability is high, it can be achieved that continuous 2-3 the operation is stable, fast response time, when corresponding
Between be less than 1 second；Strong antijamming capability is hardly damaged, and failure rate is low, and more current CPU module failure rate reduces by 35% or more.
The liquid crystal display circuit includes triode Q1, and the base stage of triode Q1 is connected with the one end resistance R1 and resistance R12
One end, another termination+3.3V power supplys of resistance R12, the resistance R1 other ends connect 14 feet of chip U1, and the emitter of triode Q1 connects
Entering+3.3V power supplys, the collector of triode Q1 is connected with 20 feet of connector J2, connector J2 external LCD, and the 1 of connector J2
Foot is grounded, the 2 foot access+3.3V power supplys of connector J2,26 feet of the 4 feet connection chip U1 of connector J2,5 feet of connector J2
27 feet of chip U1,28 feet of the 6 feet connection chip U1 of connector J2 are connected, 7 feet of connector J2 connect 31 feet of chip U1,
32 feet of the 8 feet connection chip U1 of connector J2,33 feet of the 9 feet connection chip U1 of connector J2,10 feet of connector J2 connect
34 feet of chip U1,35 feet of the 11 feet connection chip U1 of connector J2 are connect, 12 feet of connector J2 connect 36 feet of chip U1,
37 feet of the 13 feet connection chip U1 of connector J2,38 feet of the 14 feet connection chip U1 of connector J2,15 feet of connector J2
39 feet of chip U1,40 feet of the 16 feet connection chip U1 of connector J2 are connected, 17 feet of connector J2 connect the 41 of chip U1
Foot, 42 feet of the 18 feet connection chip U1 of connector J2, sliding is connected between 3 feet of connector J2 and 19 feet of connector J2
Resistance W1.
The communication module includes chip U3A, and the model BC95 of chip U3A, chip U3A are wireless NB chips, chip
15 feet of U3A are connected with the collector of triode Q2, and the base stage of triode Q2 is connected with the one end resistance R30 and the one end resistance R24,
The resistance R30 other ends connect 52 feet of chip U1, emitter and the resistance R24 other ends ground connection of triode Q2；The 53 of chip U3A
Foot is connected with 1 foot of antenna J1, the 2 feet ground connection of antenna J1；45 feet of chip U3A and 46 feet connection access VBAT voltage sources,
45 feet of chip U3A are connected with the one end capacitance EC3, the one end capacitance C12, the one end capacitance C13, the one end capacitance C3, and capacitance EC3 is another
End, the capacitance C12 other ends, the capacitance C13 other ends, the capacitance C3 other ends ground connection；30 feet of the chip U3A are connected with resistance R3
One end, the one end resistance R33, the resistance R3 other ends are connected with 57 feet of chip U1, and the resistance R33 other ends are connected with connector J6's
29 feet of 2 feet, chip U3A are connected with the one end resistance R4, the one end resistance R32, and the resistance R4 other ends are connected with 58 feet of chip U1,
The resistance R32 other ends are connected with 3 feet of connector J6, and the 1 foot ground connection of 4 the foot access+3.3V, connector J6 of connector J4 connects
The external COM of plug-in unit J6.
Long-time stability of the communication module with high reliability with brilliance, super low-power consumption, hypersensitivity are micro-
Small external form volume design, easy for installation, fast response time, strong antijamming capability；Terminal device can be met to the maximum extent to small
The demand of size module product simultaneously effective reduces air detection system size and optimizes production cost, can be compatible with shifting
The M35 modules of remote communication GSM/GPRS series.
The SIM card module includes chip U4 and chip U5, the model ESDA6V8AV5 of chip U4, the model of chip U5
1 foot for MICROSIM clamshells, chip U5 is connected with the one end capacitance C17 and the one end resistance R29, and the capacitance C17 other ends are grounded,
The resistance R29 other ends are connected with 40 feet of chip U3A；3 feet of chip U5 are connected with 42 feet of chip U3A；4 feet of chip U5 connect
It is connected to the one end capacitance C18 and the one end resistance R28, capacitance C18 other ends ground connection, the resistance R28 other ends are connected with the 41 of chip U3A
Foot；5 feet of chip U5 are connected with the one end capacitance C19 and the one end resistance R27, capacitance C19 other ends ground connection, the resistance R27 other ends
It is connected with 30 feet of chip U3A；6 feet of chip U5 are connected with 38 feet of the one end capacitance C16, the one end capacitance C20 and chip U3A,
The capacitance C16 other ends connect 42 feet of chip U3A, capacitance C20 other ends ground connection.
1 foot of the 1 foot connection chip U4 of the chip U5,3 feet of the 5 feet connection chip U4 of chip U5,4 feet of chip U5
Connect 5 feet of chip U4,4 feet of the 6 feet connection chip U4 of chip U5, the 2 feet ground connection of chip U4.
The clock module includes chip U6, and 1 foot of the model SD3078 of chip U6, chip U6 are connected with resistance R20
One end, chip U1 45 feet, resistance R20 other end access+3.3V power supplys, 2 feet of chip U6 are connected with the one end resistance R19, electricity
R19 other end access+3.3V power supplys are hindered, 3 feet of chip U6 are connected with the one end capacitance C9, the one end capacitance C22, and access+3.3V
Power supply, the capacitance C9 other ends, capacitance C22 other ends ground connection, 5 feet of chip U6 are connected with the one end power supply BT1 and capacitance C23 mono-
End, the power supply BT1 other ends, capacitance C23 other ends ground connection, 7 feet of chip U6 are connected with the one end resistance R11, the one end resistance R31,
2 feet of another chip termination U1 of resistance R11, another termination+3.3V power supplys of resistance R31,8 feet of chip U6 are connected with resistance R21
43 feet of one end and chip U1, resistance R21 other end access+3.3V power supplys.
The clock module stable output signal is high, and for control errors in 0.2%, reliability is high, realizes in room temperature and width
User intervention, the high-precision of full-automatic, full power environment compensation, highly reliable clocking capability are not required in warm range, according to different
Voltage is switched to VBAT from VDD automatically or is switched to VDD from VBAT.
The power module includes chip U2, the 2 feet connection chip U2's of the model MIC29302 of chip U2, chip U2
2 feet of 1 foot, chip U2 are connected with the one end capacitance C1, the one end capacitance EC1, and access+5V power supplys, and+5V power supplys are connected with connector
J4, connector J4 are used for external power supply, the capacitance C1 other ends, capacitance EC1 other ends ground connection, the 3 feet ground connection of chip U2, chip U2
4 feet be connected with the one end resistance R22, the one end resistance R25, the one end capacitance EC2 and the one end capacitance C2, and export VBAT voltages electricity
Source, the resistance R22 other ends are connected with the one end resistance R23, and connect 5 feet of chip U2, resistance R23 other ends ground connection, resistance R25
The other end is connected with the one end light emitting diode L1, and the other end ground connection of light emitting diode L1, the capacitance EC2 other ends, capacitance C2 are another
One end is grounded.
The power module further includes voltage-stablizer Q3, the 3 feet access of the model MCP33 of voltage-stablizer Q3, voltage-stablizer Q3
3 feet of VBAT voltage sources, voltage-stablizer Q3 are connected with the one end capacitance C21, capacitance C21 other ends ground connection, and 2 feet of voltage-stablizer Q3 connect
1 foot on ground, the 1 foot output+3.3V voltages of voltage-stablizer Q3, voltage-stablizer Q1 is connected with the one end capacitance C8, capacitance C8 other ends ground connection.
The power module output is stablized, and the different voltages that exportable each module needs, control errors are in 0.2%, reliably
Property it is high, service life is long.
The key-press module includes connector J5, and connector J5 is used for external connection keyboard KEY, and 1 foot of connector J5 is connected with
The one end resistance R5 and the one end resistance R13, the resistance R5 other ends are connected with 46 feet of chip U1, another termination+3.3V electricity of resistance R13
2 feet in source, connector J5 are connected with the one end resistance R6 and the one end resistance R14, and the resistance R6 other ends are connected with 47 feet of chip U1,
3 feet of another termination+3.3V power supplys of resistance R14, connector J5 are connected with the one end resistance R7 and the one end resistance R15, and resistance R7 is another
One end is connected with 48 feet of chip U1, and 4 feet of another termination+3.3V power supplys of resistance R15, connector J5 are connected with the one end resistance R8
With the one end resistance R16, the resistance R8 other ends are connected with 51 feet of chip U1, another termination+3.3V power supplys of resistance R16, connector
5 feet of J5 are connected with the one end resistance R9 and the one end resistance R17, and the resistance R9 other ends are connected with 49 feet of chip U1, and resistance R17 is another
6 feet of one termination+3.3V power supplys, connector J5 are connected with the one end resistance R10 and the one end resistance R18, the connection of the resistance R10 other ends
There are 50 feet of chip U1, another termination+3.3V power supplys of resistance R18.
The detection of air quality module includes connector J7, and 1 foot of connector J7 connects+5V power supplys, and the 2 of connector J7
Foot is grounded, and 4 feet of connector J7 are connected with 22 feet of chip U1, and 5 feet of connector J7 are connected with 23 feet of chip U1, connector
6 feet of J7 are connected with 60 feet of chip U1, and the six directions one gaseous masses of the connector J7 for external model PTQS-1005 detects
Sensor, PTQS-1005 are used to measure humiture, content of formaldehyde, VOC content, PM2.5 contents and the CO2 contents of air.
The detection of air quality module fast response time, strong antijamming capability, service life is long, and noise is small；Extremely low work(
Consumption, highly sensitive, high-resolution, accuracy of detection is high, remarkable linear convergent rate, and stability is good.
This air quality detection system can answer air quality monitoring, fresh air system, smart home, school, hospital, do extensively
Thing hall, railway station etc. need to detect the field and place of air quality.
This air quality detection system can be compatible with any intelligent domestic system based on NB-IOT standards structure, small outer
Type volume designs, easy for installation；Fast response time, strong antijamming capability, service life is long, and noise is small；Extremely low power dissipation, it is highly sensitive
Degree, high-resolution, remarkable linear convergent rate, accuracy of detection is high, and stability is good.
The above is the citing of best mode for carrying out the invention, wherein the part that do not address in detail is that this field is common
The common knowledge of technical staff.Protection scope of the present invention is based on the contents of the claims, any technology based on the present invention
The equivalent transformation of enlightenment and progress, also within protection scope of the present invention.
Claims (10)
1. a kind of air quality detection system based on NB-IOT Internet of Things, it is characterised in that：Including CPU module, communication module,
Liquid Crystal Module, key-press module, SIM card module, power module, detection of air quality module, clock module, Liquid Crystal Module, button
Module, communication module, detection of air quality module, clock module connect CPU module, and communication module connects SIM card module, power supply
Module provides power supply for each module.
2. a kind of air quality detection system based on NB-IOT Internet of Things as described in claim 1, it is characterised in that：It is described
CPU module includes chip U1, and 3 feet of the model STM8L052R8T6 of chip U1, chip U1 are connected with the one end crystal oscillator Y1 and electricity
Hold the one end C14,4 feet of chip U3 are connected with the crystal oscillator Y1 other ends and the one end capacitance C15, and the capacitance C14 other ends and capacitance C15 are another
One end is grounded；
1 foot of the chip U3 is connected with 2 feet of connector J3, and 1 foot of connector J3 accesses power supply+3.3V, and the 3 of connector J3
Foot is grounded, and 2 feet of chip U3 are connected with 4 feet of connector J3, the external internet ISP of connector J3.
3. a kind of air quality detection system based on NB-IOT Internet of Things as described in claim 1, it is characterised in that：It is described
Liquid crystal display circuit includes triode Q1, and the base stage of triode Q1 is connected with the one end resistance R1 and the one end resistance R12, resistance R12
Another termination+3.3V power supplys, 14 feet of resistance R1 other ends connection chip U1, the emitter access+3.3V power supplys of triode Q1,
The collector of triode Q1 is connected with 20 feet of connector J2, the 1 foot ground connection of connector J2 external LCD, connector J2, connector
The 2 foot access+3.3V power supplys of J2,26 feet of the 4 feet connection chip U1 of connector J2, the 5 feet connection chip U1's of connector J2
27 feet, 28 feet of the 6 feet connection chip U1 of connector J2,31 feet of the 7 feet connection chip U1 of connector J2, the 8 of connector J2
Foot connects 32 feet of chip U1,33 feet of the 9 feet connection chip U1 of connector J2, and 10 feet of connector J2 connect the 34 of chip U1
Foot, 35 feet of the 11 feet connection chip U1 of connector J2,36 feet of the 12 feet connection chip U1 of connector J2, the 13 of connector J2
Foot connects 37 feet of chip U1,38 feet of the 14 feet connection chip U1 of connector J2, and 15 feet of connector J2 connect chip U1's
39 feet, 40 feet of the 16 feet connection chip U1 of connector J2,41 feet of the 17 feet connection chip U1 of connector J2, connector J2's
18 feet connect 42 feet of chip U1, and swept resistance W1 is connected between 3 feet of connector J2 and 19 feet of connector J2.
4. a kind of air quality detection system based on NB-IOT Internet of Things as described in claim 1, it is characterised in that：It is described
Communication module includes chip U3A, and the model BC95 of chip U3A, chip U3A are wireless NB chips, the 15 feet connection of chip U3A
There are the collector of triode Q2, the base stage of triode Q2 to be connected with the one end resistance R30 and the one end resistance R24, the resistance R30 other ends
Connect 52 feet of chip U1, emitter and the resistance R24 other ends ground connection of triode Q2；53 feet of chip U3A are connected with antenna
1 foot of J1, the 2 feet ground connection of antenna J1；45 feet of chip U3A and 46 feet connection access VBAT voltage sources, 45 feet of chip U3A
It is connected with the one end capacitance EC3, the one end capacitance C12, the one end capacitance C13, the one end capacitance C3, the capacitance EC3 other ends, capacitance C12 are another
One end, the capacitance C13 other ends, capacitance C3 other ends ground connection；30 feet of the chip U3A are connected with the one end resistance R3, resistance R33
One end, the resistance R3 other ends are connected with 57 feet of chip U1, and the resistance R33 other ends are connected with 2 feet of connector J6, chip U3A
29 feet be connected with the one end resistance R4, the one end resistance R32, the resistance R4 other ends are connected with 58 feet of chip U1, and resistance R32 is another
End is connected with 3 feet of connector J6, and 1 foot of 4 the foot access+3.3V, connector J6 of connector J4 is grounded, and connector J6 is external
COM。
5. a kind of air quality detection system based on NB-IOT Internet of Things as described in claim 1, it is characterised in that：It is described
SIM card module includes chip U4 and chip U5, and the model MICROSIM of the model ESDA6V8AV5 of chip U4, chip U5 are turned over
1 foot of lid formula, chip U5 is connected with the one end capacitance C17 and the one end resistance R29, and the capacitance C17 other ends are grounded, and resistance R29 is another
End is connected with 40 feet of chip U3A；3 feet of chip U5 are connected with 42 feet of chip U3A；4 feet of chip U5 are connected with capacitance C18
One end and the one end resistance R28, capacitance C18 other ends ground connection, the resistance R28 other ends are connected with 41 feet of chip U3A；Chip U5's
5 feet are connected with the one end capacitance C19 and the one end resistance R27, capacitance C19 other ends ground connection, and the resistance R27 other ends are connected with chip
30 feet of U3A；6 feet of chip U5 are connected with 38 feet of the one end capacitance C16, the one end capacitance C20 and chip U3A, and capacitance C16 is another
42 feet of end connection chip U3A, capacitance C20 other ends ground connection；
1 foot of the 1 foot connection chip U4 of the chip U5,3 feet of the 5 feet connection chip U4 of chip U5, the 4 feet connection of chip U5
5 feet of chip U4,4 feet of the 6 feet connection chip U4 of chip U5, the 2 feet ground connection of chip U4.
6. a kind of air quality detection system based on NB-IOT Internet of Things as described in claim 1, it is characterised in that：It is described
Clock module includes chip U6, and 1 foot of the model SD3078 of chip U6, chip U6 is connected with the one end resistance R20, chip U1
45 feet, resistance R20 other end access+3.3V power supplys, 2 feet of chip U6 are connected with the one end resistance R19, another terminations of resistance R19
Enter+3.3V power supplys, 3 feet of chip U6 are connected with the one end capacitance C9, the one end capacitance C22, and access+3.3V power supplys, and capacitance C9 is another
One end, capacitance C22 other ends ground connection, 5 feet of chip U6 are connected with the one end power supply BT1 and the one end capacitance C23, and power supply BT1 is another
End, capacitance C23 other ends ground connection, 7 feet of chip U6 are connected with the one end resistance R11, the one end resistance R31, another terminations of resistance R11
2 feet of chip U1, another termination+3.3V power supplys of resistance R31,8 feet of chip U6 are connected with the 43 of the one end resistance R21 and chip U1
Foot, resistance R21 other end access+3.3V power supplys.
7. a kind of air quality detection system based on NB-IOT Internet of Things as described in claim 1, it is characterised in that：It is described
Power module includes chip U2, and 2 feet of the model MIC29302 of chip U2, chip U2 connect 1 foot of chip U2, chip U2's
2 feet are connected with the one end capacitance C1, the one end capacitance EC1, and access+5V power supplys, and+5V power supplys are connected with connector J4, connector J4
For external power supply, the capacitance C1 other ends, capacitance EC1 other ends ground connection, 3 feet of chip U2 are grounded, and 4 feet of chip U2 are connected with
The one end resistance R22, the one end resistance R25, the one end capacitance EC2 and the one end capacitance C2, and VBAT voltage sources are exported, resistance R22 is another
One end is connected with the one end resistance R23, and connects 5 feet of chip U2, and resistance R23 other ends ground connection, the resistance R25 other ends are connected with
The one end light emitting diode L1, the other end ground connection of light emitting diode L1, the capacitance EC2 other ends, capacitance C2 other ends ground connection.
8. a kind of air quality detection system based on NB-IOT Internet of Things as described in claim 1, it is characterised in that：It is described
Power module further includes voltage-stablizer Q3, and 3 feet of the model MCP33 of voltage-stablizer Q3, voltage-stablizer Q3 access VBAT voltage sources, surely
3 feet of depressor Q3 are connected with the one end capacitance C21, and 2 feet of capacitance C21 other ends ground connection, voltage-stablizer Q3 are grounded, and the 1 of voltage-stablizer Q3
1 foot of foot output+3.3V voltages, voltage-stablizer Q1 is connected with the one end capacitance C8, capacitance C8 other ends ground connection.
9. a kind of air quality detection system based on NB-IOT Internet of Things as described in claim 1, it is characterised in that：It is described
Key-press module includes connector J5, and connector J5 is used for external connection keyboard KEY, 1 foot of connector J5 be connected with the one end resistance R5 and
The one end resistance R13, the resistance R5 other ends are connected with 46 feet of chip U1, another termination+3.3V power supplys of resistance R13, connector J5
2 feet be connected with the one end resistance R6 and the one end resistance R14, the resistance R6 other ends are connected with 47 feet of chip U1, and resistance R14 is another
3 feet of termination+3.3V power supplys, connector J5 are connected with the one end resistance R7 and the one end resistance R15, and the resistance R7 other ends are connected with core
48 feet of piece U1, another termination+3.3V power supplys of resistance R15,4 feet of connector J5 are connected with the one end resistance R8 and resistance R16 mono-
End, the resistance R8 other ends are connected with 51 feet of chip U1, another termination+3.3V power supplys of resistance R16, the 5 feet connection of connector J5
There are the one end resistance R9 and the one end resistance R17, the resistance R9 other ends to be connected with 49 feet of chip U1, another termination+3.3V of resistance R17
6 feet of power supply, connector J5 are connected with the one end resistance R10 and the one end resistance R18, and the resistance R10 other ends are connected with chip U1's
50 feet, another termination+3.3V power supplys of resistance R18.
10. a kind of air quality detection system based on NB-IOT Internet of Things as described in claim 1, it is characterised in that：Institute
It includes connector J7 to state detection of air quality module, and 1 foot of connector J7 connects+5V power supplys, and the 2 feet ground connection of connector J7 patches
4 feet of part J7 are connected with 22 feet of chip U1, and 5 feet of connector J7 are connected with 23 feet of chip U1, the 6 feet connection of connector J7
There are 60 feet of chip U1, connector J7 to be used for the one gaseous mass detection sensor of the six directions of external model PTQS-1005,
PTQS-1005 is used to measure humiture, content of formaldehyde, VOC content, PM2.5 contents and the CO2 contents of air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810230442.3A CN108593841A (en) | 2018-03-20 | 2018-03-20 | A kind of air quality detection system based on NB-IOT Internet of Things |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810230442.3A CN108593841A (en) | 2018-03-20 | 2018-03-20 | A kind of air quality detection system based on NB-IOT Internet of Things |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108593841A true CN108593841A (en) | 2018-09-28 |
Family
ID=63626867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810230442.3A Pending CN108593841A (en) | 2018-03-20 | 2018-03-20 | A kind of air quality detection system based on NB-IOT Internet of Things |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108593841A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111397656A (en) * | 2019-01-03 | 2020-07-10 | 上海电机学院 | Air quality detection device based on narrowband thing networking |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103105469A (en) * | 2013-02-05 | 2013-05-15 | 贝谷科技股份有限公司 | Online monitoring device for automobile interior air quality monitoring |
| CN203385442U (en) * | 2013-05-13 | 2014-01-08 | 河南圣玛斯光电科技有限公司 | Indoor air quality monitor |
| CN204347452U (en) * | 2014-12-26 | 2015-05-20 | 福建省大宏实业开发有限公司 | A kind of clock with Detection of Air Quality and video call function |
| CN106018711A (en) * | 2016-08-03 | 2016-10-12 | 合肥奇也信息科技有限公司 | Air environmental quality monitoring system |
| CN207115711U (en) * | 2017-09-04 | 2018-03-16 | 福建溢资物联网科技有限公司 | A kind of methane detection warning device based on NB IoT technologies |
-
2018
- 2018-03-20 CN CN201810230442.3A patent/CN108593841A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103105469A (en) * | 2013-02-05 | 2013-05-15 | 贝谷科技股份有限公司 | Online monitoring device for automobile interior air quality monitoring |
| CN203385442U (en) * | 2013-05-13 | 2014-01-08 | 河南圣玛斯光电科技有限公司 | Indoor air quality monitor |
| CN204347452U (en) * | 2014-12-26 | 2015-05-20 | 福建省大宏实业开发有限公司 | A kind of clock with Detection of Air Quality and video call function |
| CN106018711A (en) * | 2016-08-03 | 2016-10-12 | 合肥奇也信息科技有限公司 | Air environmental quality monitoring system |
| CN207115711U (en) * | 2017-09-04 | 2018-03-16 | 福建溢资物联网科技有限公司 | A kind of methane detection warning device based on NB IoT technologies |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111397656A (en) * | 2019-01-03 | 2020-07-10 | 上海电机学院 | Air quality detection device based on narrowband thing networking |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207197576U (en) | Home environment quality monitoring device based on WIFI communications | |
| CN1786978A (en) | Handheld data acquiring terminal | |
| CN108760989A (en) | A kind of air-quality monitoring system and its monitoring method | |
| CN201417180Y (en) | Temperature and humidity detection alarm | |
| CN108593841A (en) | A kind of air quality detection system based on NB-IOT Internet of Things | |
| CN108872476A (en) | A kind of air quality detection system of the linear convergent rate brilliance based on NB-IOT Internet of Things | |
| CN209182299U (en) | A kind of air quality detection system that the accuracy of measurement based on NB-IOT Internet of Things is high | |
| CN207066485U (en) | Vegetables temperature canopy monitoring system based on Internet of Things | |
| CN207557152U (en) | A kind of novel pH value intelligent measure circuit | |
| CN207675600U (en) | A kind of intelligence high-precision dust sensor | |
| CN110545298A (en) | Exhibition hall multi-information acquisition system | |
| CN209642667U (en) | A kind of bluetooth module | |
| CN208805913U (en) | A kind of highly-safe fuel gas detection system based on NB-IOT Internet of Things | |
| CN208225265U (en) | A kind of fuel gas detection system that the flexibility based on NB-IOT Internet of Things is good | |
| CN208383839U (en) | A kind of air-quality monitoring system | |
| CN2919374Y (en) | Hand-hold data collecting terminal | |
| CN207099905U (en) | Grape greenhouse indoor environment remote supervision system | |
| Zou et al. | Design of an intelligent control system for greenhouse | |
| CN202652544U (en) | Small wind power field low power consumption wind measurement data collection system | |
| CN206649654U (en) | A kind of wireless sensing haze monitoring node | |
| Eze et al. | A Critical Assessment of Data Loggers for Farm Monitoring: Addressing Limitations and Advancing Towards Enhanced Weather Monitoring Systems | |
| CN208721658U (en) | Building prefabricated components based on physical message integration technology transport carbon emission monitoring circuit | |
| CN108597192A (en) | A kind of versatile fuel gas detecting system based on NB-IOT Internet of Things | |
| CN219871829U (en) | Portable meteorological data monitoring system | |
| CN205826053U (en) | A kind of Internet of Things gas meter, flow meter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180928 |