CN108872476A - A kind of air quality detection system of the linear convergent rate brilliance based on NB-IOT Internet of Things - Google Patents
A kind of air quality detection system of the linear convergent rate brilliance based on NB-IOT Internet of Things Download PDFInfo
- Publication number
- CN108872476A CN108872476A CN201810231103.7A CN201810231103A CN108872476A CN 108872476 A CN108872476 A CN 108872476A CN 201810231103 A CN201810231103 A CN 201810231103A CN 108872476 A CN108872476 A CN 108872476A
- Authority
- CN
- China
- Prior art keywords
- feet
- chip
- connector
- capacitor
- resistance
- 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
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0031—General constructional details of gas analysers, e.g. portable test equipment concerning the detector comprising two or more sensors, e.g. a sensor array
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/38—Services specially adapted for particular environments, situations or purposes for collecting sensor information
Abstract
The air quality detection system for the linear convergent rate brilliance based on NB-IOT Internet of Things that the invention discloses a kind of, including CPU module, communication module, Liquid Crystal Module SIM card module, power module, detection of air quality module, CPU module includes chip U1, the model STM8L052R8T6 of chip U1；Communication module includes chip U3A, and the model BC95 of chip U3A, chip U3A are wireless NB chips；SIM card module includes chip U4 and chip U5, the model MICROSIM clamshell of the model ESDA6V8AV5 of chip U4, chip U5.It has the following advantages that：Can be compatible with any smart home system based on the building of NB-IOT standard, small external form volume design is easy for installation, can be compatible with the M35 module for moving remote communication GSM/GPRS series.
Description
Technical field
The air quality detection system for the linear convergent rate brilliance based on NB-IOT Internet of Things that the present invention relates to a kind of, belongs to electricity
Sub- detection device technical field.
Background technique
Air, which refers to, is 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 to suck daily 10-12 cubic metres of air.Atmosphere have it is certain from
I is removed by self purification process of atmosphere from atmosphere, because natural process etc. enters the pollutant of atmosphere 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, and just will receive shadow when we live in health among 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 module 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 detection accuracy is low, and stability is poor.
Summary of the invention
The problem to be solved in the present invention is provided a kind of based on the linear of NB-IOT Internet of Things for original technically deficiency
Brilliant air quality detection system is exported, can be compatible with any smart home system based on the building of NB-IOT standard, it is small
The design of external form volume, it is easy for installation, the M35 module for moving remote communication GSM/GPRS series can be compatible with；Fast response time, it is anti-interference
Ability is strong, and long service life, noise is small, extremely low power dissipation；High sensitivity, high-resolution, brilliant linear convergent rate, detection accuracy
Height, stability are good.
To solve the above-mentioned problems, the present invention uses following technical scheme：
A kind of air quality detection system of the linear convergent rate brilliance based on NB-IOT Internet of Things, including CPU module, communication mould
Block, Liquid Crystal Module SIM card module, power module, detection of air quality module, Liquid Crystal Module, communication module, air quality inspection
It surveys module and connects CPU module, communication module connects SIM card module, and power module provides power supply for each module；
The CPU module includes chip U1, the model STM8L052R8T6 of chip U1；
The communication module includes chip U3A, and the model BC95 of chip U3A, chip U3A are wireless NB chips；
The SIM card module includes chip U4 and chip U5, the model ESDA6V8AV5 of chip U4, the model of chip U5
MICROSIM clamshell；
The power module further includes voltage-stablizer Q3, the model MCP33 of voltage-stablizer Q3；
The power module includes chip U2, the model MIC29302 of chip U2.
Further, 3 feet of the chip U1 are connected with the one end crystal oscillator Y1 and the one end capacitor C14, the 4 feet connection of chip U3
There are the crystal oscillator Y1 other end and the one end capacitor C15, the capacitor C14 other end and capacitor C15 other end 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 ground connection, 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 supply of resistance R2, the resistance R1 other end connects 14 feet of chip U1, triode Q1's
Emitter access+3.3V power supply, the collector of triode Q1 are connected with 20 feet of connector J2, and the external LCD of connector J2 is 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 J2,7 feet of connector J2 connect chip U1
31 feet, connector J2 8 feet connection chip U1 32 feet, connector J2 9 feet connection chip U1 33 feet, connector J2's
10 feet connect 34 feet of chip U1,35 feet of the 11 feet connection chip U1 of connector J2, and 12 feet of connector J2 connect chip U1
36 feet, connector J2 13 feet connection chip U1 37 feet, connector J2 14 feet connection chip U1 38 feet, 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, 15 feet of the 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 the one end resistance R24, the resistance R30 other end connect 52 feet of chip U1, the emitter and resistance of triode Q2
R24 other end ground connection.
Further, 53 feet of the chip U3A are connected with 1 foot of antenna J1, the 2 feet ground connection of antenna J1；Chip U3A's
45 feet and 46 feet connection access VBAT voltage source, 45 feet of chip U3A are connected with the one end capacitor EC3, the one end capacitor C12, electricity
Hold the one end C13, the one end capacitor C3, the capacitor EC3 other end, the capacitor C12 other end, the capacitor C13 other end, another termination of capacitor C3
Ground.
Further, 30 feet of the chip U3A are connected with the one end resistance R3, the one end resistance R33, and the resistance R3 other end connects
57 feet of chip U1 are connected to, the resistance R33 other end is connected with 2 feet of connector J6, and 29 feet of chip U3A are connected with resistance R4 mono-
End, the one end resistance R32, the resistance R4 other end are connected with 58 feet of chip U1, and the resistance R32 other end is connected with the 3 of connector J6
Foot, the 1 foot ground connection of 4 the foot access+3.3V, connector J6 of connector J4, the external COM of connector J6.
Further, 1 foot of the chip U5 is connected with the one end capacitor C17 and the one end resistance R29, the capacitor C17 other end
Ground connection, the resistance R29 other end are connected with 40 feet of chip U3A；3 feet of chip U5 are connected with 42 feet of chip U3A；Chip U5's
4 feet are connected with the one end capacitor C18 and the one end resistance R28, capacitor C18 other end ground connection, and the resistance R28 other end is connected with chip
41 feet of U3A；5 feet of chip U5 are connected with the one end capacitor C19 and the one end resistance R27, capacitor C19 other end ground connection, resistance R27
The other end is connected with 30 feet of chip U3A；6 feet of chip U5 are connected with the one end capacitor C16, the one end capacitor C20 and chip U3A's
38 feet, the capacitor C16 other end connect 42 feet of chip U3A, capacitor C20 other end 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 chip U2 2 feet connection chip U2 1 foot, 2 feet of chip U2 be connected with the one end capacitor C1,
The one end capacitor EC1, and+5V power supply is accessed ,+5V power supply is connected with connector J4, and connector J4 is used for external power supply, and capacitor C1 is another
One end, capacitor EC1 other end ground connection, the 3 feet ground connection of chip U2,4 feet of chip U2 are connected with the one end resistance R22, resistance R25 mono-
End, the one end capacitor EC2 and the one end capacitor C2, and VBAT voltage source is exported, the resistance R22 other end is connected with the one end resistance R23,
And 5 feet of chip U2 are connected, resistance R23 other end ground connection, the resistance R25 other end is connected with the one end light emitting diode L1, shines
The other end of diode L1 is grounded, the capacitor EC2 other end, capacitor C2 other end ground connection.
Further, 3 feet of the voltage-stablizer Q3 access VBAT voltage source, and 3 feet of voltage-stablizer Q3 are connected with capacitor C21
One end, capacitor C21 other end ground connection, the 2 feet ground connection of voltage-stablizer Q3, the 1 foot output+3.3V voltage of voltage-stablizer Q3, voltage-stablizer Q1
1 foot be connected with the one end capacitor C8, capacitor C8 other end ground connection.
Further, the detection of air quality module includes connector J7, and 1 foot of connector J7 connects+5V power supply, 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
Foot, 6 feet of 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 temperature and humidity of air, content of formaldehyde, VOC content, PM2.5 content and
CO2 content.
The invention adopts the above technical scheme, compared with prior art, has the following technical effect that：
1, air quality detection system of the present invention can be simultaneous with any smart home system based on the building of NB-IOT standard
Hold, small external form volume design is easy for installation；Fast response time, strong antijamming capability, long service life, noise is small, extremely low function
Consumption；High sensitivity, high-resolution, brilliant linear convergent rate, detection accuracy is high, and stability is good；
2, the CPU module long-term working stability is high, is hardly damaged, failure rate is low.
The present invention is described in detail with reference to the accompanying drawings and examples.
Detailed description of the invention
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 module in the embodiment of the present invention.
Specific embodiment
Embodiment 1, as shown in Figures 1 to 8, a kind of air quality inspection of the linear convergent rate brilliance based on NB-IOT Internet of Things
Examining system, including CPU module, communication module, Liquid Crystal Module, key module, SIM card module, power module, Detection of Air Quality
Module, clock module, Liquid Crystal Module, key module, communication module, detection of air quality module, clock module connect CPU mould
Block, communication module connect SIM card module, and power module provides 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
Vibration one end Y1 and the one end capacitor C14,4 feet of chip U3 are connected with the crystal oscillator Y1 other end and the one end capacitor C15, and capacitor C14 is another
End and capacitor C15 other end 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 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 R2 mono-
End, another termination+3.3V power supply of resistance R2, the resistance R1 other end connect chip U1 14 feet, triode Q1 emitter access+
3.3V power supply, the collector of triode Q1 are connected with 20 feet of connector J2, and 1 foot of connector J2 external LCD, connector J2 connect
Ground, the 2 foot access+3.3V power supplys of connector J2,26 feet of the 4 feet connection chip U1 of connector J2, the 5 feet connection of connector J2
27 feet of chip U1,28 feet of the 6 feet connection chip U1 of connector J2,31 feet of the 7 feet connection chip U1 of connector J2 patch
32 feet of the 8 feet connection chip U1 of part J2,33 feet of the 9 feet connection chip U1 of connector J2,10 feet of connector J2 connect core
34 feet of piece U1,35 feet of the 11 feet connection chip U1 of connector J2,36 feet of the 12 feet connection chip U1 of connector J2 patch
37 feet of the 13 feet connection chip U1 of part J2,38 feet of the 14 feet connection chip U1 of connector J2, the 15 feet connection of connector J2
39 feet of chip U1,40 feet of the 16 feet connection chip U1 of connector J2,41 feet of the 17 feet connection chip U1 of connector J2 connect
42 feet of the 18 feet connection chip U1 of plug-in unit J2, are connected with swept resistance between 3 feet of connector J2 and 19 feet of connector J2
W1。
The communication module includes chip U3A, and the model BC95 of chip U3A, chip U3A are wireless NB chip, 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 end connects 52 feet of chip U1, emitter and the resistance R24 other end 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 source,
45 feet of chip U3A are connected with the one end capacitor EC3, the one end capacitor C12, the one end capacitor C13, the one end capacitor C3, and capacitor EC3 is another
End, the capacitor C12 other end, the capacitor C13 other end, the capacitor C3 other end ground connection；30 feet of the chip U3A are connected with resistance R3
One end, the one end resistance R33, the resistance R3 other end are connected with 57 feet of chip U1, and the resistance R33 other end is connected with connector J6's
2 feet, 29 feet of chip U3A are connected with the one end resistance R4, the one end resistance R32, and the resistance R4 other end is connected with 58 feet of chip U1,
The resistance R32 other end is 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.
The communication module has high reliability and brilliant long-time stability, super low-power consumption, hypersensitivity 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 module 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
For MICROSIM clamshell, 1 foot of chip U5 is connected with the one end capacitor C17 and the one end resistance R29, and the capacitor C17 other end is grounded,
The resistance R29 other 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 connect
It is connected to the one end capacitor C18 and the one end resistance R28, capacitor C18 other end ground connection, the resistance R28 other end is connected with the 41 of chip U3A
Foot；5 feet of chip U5 are connected with the one end capacitor C19 and the one end resistance R27, capacitor C19 other end ground connection, the resistance R27 other end
It is connected with 30 feet of chip U3A；6 feet of chip U5 are connected with 38 feet of the one end capacitor C16, the one end capacitor C20 and chip U3A,
The capacitor C16 other end connects 42 feet of chip U3A, capacitor C20 other end 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 supply, 2 feet of chip U6 are connected with the one end resistance R19, electricity
R19 other end access+3.3V power supply is hindered, 3 feet of chip U6 are connected with the one end capacitor C9, the one end capacitor C22, and access+3.3V
Power supply, the capacitor C9 other end, capacitor C22 other end ground connection, 5 feet of chip U6 are connected with the one end power supply BT1 and capacitor C23 mono-
End, the power supply BT1 other end, capacitor C23 other end 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 supply 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 supply.
The clock module stable output signal is high, and control errors are in 0.2%, high reliablity, 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
1 foot, 2 feet of chip U2 are connected with the one end capacitor C1, the one end capacitor EC1, and access+5V power supply, and+5V power supply is connected with connector
J4, connector J4 are used for external power supply, the capacitor C1 other end, capacitor EC1 other end 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 capacitor EC2 and the one end capacitor C2, and export VBAT voltage electricity
Source, the resistance R22 other end are connected with the one end resistance R23, and connect 5 feet of chip U2, resistance R23 other end 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 capacitor EC2 other end, capacitor C2 are another
One end ground connection.
The power module further includes voltage-stablizer Q3, the 3 feet access of the model MCP33 of voltage-stablizer Q3, voltage-stablizer Q3
VBAT voltage source, 3 feet of voltage-stablizer Q3 are connected with the one end capacitor C21, capacitor C21 other end ground connection, and 2 feet of voltage-stablizer Q3 connect
Ground, the 1 foot output+3.3V voltage of voltage-stablizer Q3,1 foot of voltage-stablizer Q1 are connected with the one end capacitor C8, capacitor C8 other end 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 high, long service life.
The key 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 end are connected with 46 feet of chip U1, another termination+3.3V electricity of resistance R13
Source, 2 feet of connector J5 are connected with the one end resistance R6 and the one end resistance R14, and the resistance R6 other end is connected with 47 feet of chip U1,
Another termination+3.3V power supply of resistance R14,3 feet of 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, another termination+3.3V power supply of resistance R15, and 4 feet of connector J5 are connected with the one end resistance R8
With the one end resistance R16, the resistance R8 other end is connected with 51 feet of chip U1, another termination+3.3V power supply 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 end is connected with 49 feet of chip U1, and resistance R17 is another
One termination+3.3V power supply, 6 feet of connector J5 are connected with the one end resistance R10 and the one end resistance R18, the connection of the resistance R10 other end
There are 50 feet of chip U1, another termination+3.3V power supply of resistance R18.
The detection of air quality module includes connector J7, and 1 foot of connector J7 connects+5V power supply, and the 2 of connector J7
Foot ground connection, 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 mass of the connector J7 for external model PTQS-1005 detects
Sensor, PTQS-1005 are used to measure temperature and humidity, content of formaldehyde, VOC content, PM2.5 content and the CO2 content of air.
The detection of air quality module fast response time, strong antijamming capability, long service life, noise are small；Extremely low function
Consumption, highly sensitive, high-resolution, detection accuracy is high, brilliant linear convergent rate, and stability is good.
This air quality detection system can answer air quality monitoring extensively, fresh air system, smart home, school, hospital, do
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 smart home system based on the building of NB-IOT standard, small outer
The design of type volume, it is easy for installation；Fast response time, strong antijamming capability, long service life, noise are small；Extremely low power dissipation, it is highly sensitive
Degree, high-resolution, brilliant linear convergent rate, detection accuracy 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 based on technology of the 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 of the linear convergent rate brilliance based on NB-IOT Internet of Things, it is characterised in that：Including CPU
Module, communication module, Liquid Crystal Module SIM card module, power module, detection of air quality module, Liquid Crystal Module, communication module,
Detection of air quality module connects CPU module, and communication module connects SIM card module, and power module provides power supply for each module；
The CPU module includes chip U1, the model STM8L052R8T6 of chip U1；
The communication module includes chip U3A, and the model BC95 of chip U3A, chip U3A are wireless NB chips；
The SIM card module includes chip U4 and chip U5, the model ESDA6V8AV5 of chip U4, the model of chip U5
MICROSIM clamshell；
The power module further includes voltage-stablizer Q3, the model MCP33 of voltage-stablizer Q3；
The power module includes chip U2, the model MIC29302 of chip U2.
2. a kind of air quality detection system of the linear convergent rate brilliance based on NB-IOT Internet of Things as described in claim 1,
It is characterized in that：3 feet of the chip U1 are connected with the one end crystal oscillator Y1 and the one end capacitor C14, and 4 feet of chip U3 are connected with crystal oscillator
The Y1 other end and the one end capacitor C15, the capacitor C14 other end and capacitor C15 other end 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 ground connection, 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 of the linear convergent rate brilliance based on NB-IOT Internet of Things as described in claim 1,
It is characterized in that：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
The one end R12, another termination+3.3V power supply of resistance R12, the resistance R1 other end connect 14 feet of chip U1, the transmitting of triode Q1
Pole access+3.3V power supply, the collector of triode Q1 are connected with 20 feet of connector J2, connector J2 external LCD, connector J2
1 foot ground connection, the 2 foot access+3.3V power supplys of connector J2, connector J2 4 feet connection chip U1 26 feet, connector J2's
5 feet connect 27 feet of chip U1,28 feet of the 6 feet connection chip U1 of connector J2, and 7 feet of connector J2 connect the 31 of chip U1
Foot, 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
34 feet of chip U1,35 feet of the 11 feet connection chip U1 of connector J2 are connected, 12 feet of connector J2 connect the 36 of chip U1
Foot, 37 feet of the 13 feet connection chip U1 of connector J2,38 feet of the 14 feet connection chip U1 of connector J2, the 15 of connector J2
Foot connects 39 feet of chip U1,40 feet of the 16 feet connection chip U1 of connector J2, and 17 feet of connector J2 connect chip U1's
41 feet, 42 feet of the 18 feet connection chip U1 of connector J2, are connected with cunning between 3 feet of connector J2 and 19 feet of connector J2
Dynamic resistance W1.
4. a kind of air quality detection system of the linear convergent rate brilliance based on NB-IOT Internet of Things as described in claim 1,
It is characterized in that：15 feet of the chip U3A are connected with the collector of triode Q2, and the base stage of triode Q2 is connected with resistance
The one end R30 and the one end resistance R24, the resistance R30 other end connect 52 feet of chip U1, the emitter and resistance R24 of triode Q2
Other end ground connection.
5. a kind of air quality detection system of the linear convergent rate brilliance based on NB-IOT Internet of Things as described in claim 1,
It is characterized in that：53 feet of the chip U3A are 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 source, 45 feet of chip U3A are connected with the one end capacitor EC3, the one end capacitor C12, capacitor C13 mono-
End, the one end capacitor C3, the capacitor EC3 other end, the capacitor C12 other end, the capacitor C13 other end, capacitor C3 other end ground connection.
6. a kind of air quality detection system of the linear convergent rate brilliance based on NB-IOT Internet of Things as described in claim 1,
It is characterized in that：30 feet of the chip U3A are connected with the one end resistance R3, the one end resistance R33, and the resistance R3 other end is connected with core
57 feet of piece U1, the resistance R33 other end are connected with 2 feet of connector J6, and 29 feet of chip U3A are connected with the one end resistance R4, electricity
The one end R32 is hindered, the resistance R4 other end is connected with 58 feet of chip U1, and the resistance R32 other end is connected with 3 feet of connector J6, connects
1 foot of 4 the foot access+3.3V, connector J6 of plug-in unit J4 is grounded, the external COM of connector J6.
7. a kind of air quality detection system of the linear convergent rate brilliance based on NB-IOT Internet of Things as described in claim 1,
It is characterized in that：1 foot of the chip U5 is connected with the one end capacitor C17 and the one end resistance R29, capacitor C17 other end ground connection, electricity
The resistance R29 other 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 connect
There are the one end capacitor C18 and the one end resistance R28, capacitor C18 other end ground connection, the resistance R28 other end is connected with the 41 of chip U3A
Foot；5 feet of chip U5 are connected with the one end capacitor C19 and the one end resistance R27, capacitor C19 other end ground connection, the resistance R27 other end
It is connected with 30 feet of chip U3A；6 feet of chip U5 are connected with 38 feet of the one end capacitor C16, the one end capacitor C20 and chip U3A,
The capacitor C16 other end connects 42 feet of chip U3A, capacitor C20 other end 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.
8. a kind of air quality detection system of the linear convergent rate brilliance based on NB-IOT Internet of Things as described in claim 1,
It is characterized in that：1 foot of the 2 feet connection chip U2 of the chip U2,2 feet of chip U2 are connected with the one end capacitor C1, capacitor EC1
One end, and+5V power supply is accessed ,+5V power supply is connected with connector J4, and connector J4 is used for external power supply, the capacitor C1 other end, electricity
Hold EC1 other end ground connection, the 3 feet ground connection of chip U2,4 feet of chip U2 are connected with the one end resistance R22, the one end resistance R25, capacitor
The one end EC2 and the one end capacitor C2, and VBAT voltage source is exported, the resistance R22 other end is connected with the one end resistance R23, and connects
5 feet of chip U2, resistance R23 other end ground connection, the resistance R25 other end are connected with the one end light emitting diode L1, light emitting diode
The other end of L1 is grounded, the capacitor EC2 other end, capacitor C2 other end ground connection.
9. a kind of air quality detection system of the linear convergent rate brilliance based on NB-IOT Internet of Things as described in claim 1,
It is characterized in that：3 feet of the voltage-stablizer Q3 access VBAT voltage source, and 3 feet of voltage-stablizer Q3 are connected with the one end capacitor C21,
Capacitor C21 other end ground connection, the 2 feet ground connection of voltage-stablizer Q3, the 1 foot output+3.3V voltage of voltage-stablizer Q3,1 foot of voltage-stablizer Q1
It is connected with the one end capacitor C8, capacitor C8 other end ground connection.
10. a kind of air quality detection system of the linear convergent rate brilliance based on NB-IOT Internet of Things as described in claim 1,
It is characterized in that：The detection of air quality module includes connector J7, and 1 foot of connector J7 meets+5V power supply, connector J7
2 feet ground connection, 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, connect
6 feet of plug-in unit J7 are connected with 60 feet of chip U1, and connector J7 is used for one gaseous mass of the six directions of external model PTQS-1005
Detection sensor, PTQS-1005 are used to measure temperature and humidity, content of formaldehyde, VOC content, PM2.5 content and the CO2 content of air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810231103.7A CN108872476A (en) | 2018-03-20 | 2018-03-20 | A kind of air quality detection system of the linear convergent rate brilliance based on NB-IOT Internet of Things |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810231103.7A CN108872476A (en) | 2018-03-20 | 2018-03-20 | A kind of air quality detection system of the linear convergent rate brilliance based on NB-IOT Internet of Things |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108872476A true CN108872476A (en) | 2018-11-23 |
Family
ID=64326073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810231103.7A Pending CN108872476A (en) | 2018-03-20 | 2018-03-20 | A kind of air quality detection system of the linear convergent rate brilliance based on NB-IOT Internet of Things |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108872476A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110568807A (en) * | 2019-11-07 | 2019-12-13 | 潍坊汇金海物联网技术有限公司 | Ultra-low power consumption control circuit based on watchdog reset and heartbeat circuit |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203416276U (en) * | 2013-08-02 | 2014-01-29 | 杭州电子科技大学 | General industrial remote monitoring terminal based on multiple communication modes |
| 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 CN201810231103.7A patent/CN108872476A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203416276U (en) * | 2013-08-02 | 2014-01-29 | 杭州电子科技大学 | General industrial remote monitoring terminal based on multiple communication modes |
| 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 |
|---|---|---|---|---|
| CN110568807A (en) * | 2019-11-07 | 2019-12-13 | 潍坊汇金海物联网技术有限公司 | Ultra-low power consumption control circuit based on watchdog reset and heartbeat circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201412183Y (en) | Real-time monitoring and early warning device for mine gas outburst | |
| CN103326739B (en) | Aquaculture wireless sensor network node device and operation method | |
| CN207197576U (en) | Home environment quality monitoring device based on WIFI communications | |
| CN108872476A (en) | A kind of air quality detection system of the linear convergent rate brilliance based on NB-IOT Internet of Things | |
| CN108593841A (en) | A kind of air quality detection system 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 | |
| CN205450670U (en) | Pollution source on -line monitoring system | |
| CN207066485U (en) | Vegetables temperature canopy monitoring system based on Internet of Things | |
| CN207557152U (en) | A kind of novel pH value intelligent measure circuit | |
| 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 | |
| CN201347757Y (en) | Oil well low power consumption wireless pressure sensor | |
| CN207099905U (en) | Grape greenhouse indoor environment remote supervision system | |
| CN202652544U (en) | Small wind power field low power consumption wind measurement data collection system | |
| Zou et al. | Design of an intelligent control system for greenhouse | |
| CN202267479U (en) | Air pressure altimeter | |
| CN208780243U (en) | A kind of Agro-ecology monitoring device | |
| CN206649654U (en) | A kind of wireless sensing haze monitoring node | |
| CN108597192A (en) | A kind of versatile fuel gas detecting system based on NB-IOT Internet of Things | |
| CN109544866A (en) | A kind of fuel gas detection system based on NB-IOT Internet of Things | |
| CN208903214U (en) | A kind of single-chip microcontroller sleep management system | |
| CN205826053U (en) | A kind of Internet of Things gas meter, flow meter | |
| CN208721658U (en) | Building prefabricated components based on physical message integration technology transport carbon emission monitoring circuit | |
| CN219871829U (en) | Portable meteorological data monitoring system | |
| CN102878981A (en) | Barometric altimeter |
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 |
Application publication date: 20181123 |
|
| RJ01 | Rejection of invention patent application after publication |