CN109765153A - Atmospheric dust based on GPS monitors system - Google Patents
Atmospheric dust based on GPS monitors system Download PDFInfo
- Publication number
- CN109765153A CN109765153A CN201811635547.3A CN201811635547A CN109765153A CN 109765153 A CN109765153 A CN 109765153A CN 201811635547 A CN201811635547 A CN 201811635547A CN 109765153 A CN109765153 A CN 109765153A
- Authority
- CN
- China
- Prior art keywords
- voltage
- resistance
- capacitor
- inductance
- frequency
- 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.)
- Granted
Links
Landscapes
- Amplifiers (AREA)
Abstract
The invention discloses the atmospheric dusts based on GPS to monitor system, the 200-1000Hz frequency signal that the sensor of dust concentration RS485 interface of model GCG1000 exports is entered operational amplifier AR1 after the first bandpass filter filters out alien frequencies interference by the bandpass filtering amplifying circuit, resistance R1- resistance R5, capacitor C4- capacitor C6, second bandpass filter of Transient Suppression Diode VD1 composition is 600Hz to centre frequency, bandwidth is that the pulse signal of the frequency component of 400Hz amplifies, enter frequency-voltage conversion circuit later and is converted to the 3V-15V voltage signal linear with frequency, finally enter voltage-stabilizing output circuit, pass through triode Q1, Q2, the voltage regulator circuit of voltage-stabiliser tube TL431 composition, export stable 3V- 15V voltage, the output matching circuit that inductance L4- inductance L6, capacitor C10, resistance R14 are formed are matched with Serial Port Line, the zero-decrement RS232 interface for transferring signals to GPRS communication module.Effective solution monitoring central server receives the problem of signal is inaccurate and the specific location of the indefinite signal that receives.
Description
Technical field
The present invention relates to coal mines, atmospheric dust monitoring technical field, monitor system more particularly to the atmospheric dust based on GPS
System.
Background technique
A large amount of dust can be generated in coal production, dust not only brings the safety problems such as dust explosion also to coal production
The health problem (causing respiratory disease, pneumoconiosis etc.) of strong influence coal miner, therefore dust is measured, is supervised
It surveys, and then the dust-proof control of progress is very necessary, at present the main sensor of dust concentration collection of coal mine for using model GCG1000
The prompting message of atmospheric dust concentration, by RS485 Serial Port Line enter data conversion device conversion after (A/D conversion equipment or
RS232 etc. is converted to corresponding communication module or computer energy received signal) it is connected to corresponding GPRS communication module, electricity in a serial fashion
On brain RS232 serial ports, monitoring central server is transmitted to remotely to be monitored with GPRS network or Internet, however
This data conversion device is logical in the presence of RS232 is unsatisfactory for vulnerable to the interference of extraneous frequency signal, converted signals when receiving signal
Requirement of the communication interface to signal amplitude (+3V ~+15V), the signal for receiving monitoring central server is inaccurate, in addition monitors
It is multiple regions in a coal mine, the monitoring signals of multiple coal mines that central server is often received, and monitoring central server needs
The specific location of the signal clearly received.
So the present invention provides the new scheme of one kind to solve the problems, such as this.
Summary of the invention
For above situation, for the defect for overcoming the prior art, purpose of the present invention is to provide the atmosphere powder based on GPS
Dirt monitors system, have be skillfully constructed, the characteristic of human oriented design, effective solution monitoring central server receives signal not
The problem of specific location of enough accurate and indefinite signals received.
Its technical solution solved is, including sensor of dust concentration, GPS positioning module, GPRS communication module, in monitoring
Central server, the coal mine atmospheric dust concentration information of the sensor of dust concentration acquisition and the dust of GPS positioning module positioning
Concentration sensor location information is connected to GPRS communication module by serial ports, and GPRS communication module is sent to monitoring by GPRS network
Central server, which is characterized in that bandpass filtering amplification electricity is connected between sensor of dust concentration and GPRS communication module
Road, frequency-voltage conversion circuit, voltage-stabilizing output circuit, the bandpass filtering amplifying circuit are dense by the dust of model GCG1000
The 200-1000Hz frequency signal of sensor RS485 interface output is spent through capacitor C1, capacitor C2, inductance L1 and inductance L2, inductance
First bandpass filter of L3, capacitor C3 composition enters operational amplifier AR1, resistance R1- resistance R5, electricity after filtering out alien frequencies interference
The second bandpass filter for holding C4- capacitor C6, Transient Suppression Diode VD1 composition is 600Hz to centre frequency, and bandwidth is
The pulse signal of the frequency component of 400Hz amplifies, later enter voltage to frequency conversion chip U1, resistance R6- resistance R11,
Capacitor C7- capacitor C9, potentiometer RP1 component frequency voltage conversion circuit are converted to the 3V-15V voltage letter linear with frequency
Number, voltage-stabilizing output circuit is finally entered, the voltage regulator circuit being made up of triode Q1, Q2, voltage-stabiliser tube TL431, output is surely
Fixed 3V-15V voltage, inductance L4- inductance L6, capacitor C10, the output matching circuit of resistance R14 composition and Serial Port Line progress
Match, the zero-decrement RS232 interface for transferring signals to GPRS communication module.
Due to the use of above technical scheme, the present invention has the following advantages that compared with prior art；
1, the 200-1000Hz frequency signal of sensor of dust concentration output filters out alien frequencies interference through the first bandpass filter, later
It is 600Hz to centre frequency into the second bandpass filter, bandwidth is that the pulse signal of the frequency component of 400Hz amplifies
(making pulse signal in+2V ~+6V range) avoids the problem of being interfered by extraneous frequency signal, through frequency-voltage conversion circuit
The 3V-15V voltage signal linear with frequency is converted to, the voltage formed finally by triode Q1, Q2, voltage-stabiliser tube TL431
It adjusts circuit and carries out pressure stabilizing, inductance L4- inductance L6, capacitor C10, the output matching circuit of resistance R14 composition and Serial Port Line carry out
Impedance matching, the zero-decrement RS232 interface for transferring signals to GPRS communication module guarantee that signal meets RS232 communication and connects
Requirement of the mouth to signal amplitude (+3V ~+15V), improves the precision that monitoring central server receives signal；
2, the sensor of dust concentration location information of GPS positioning module positioning is connected to GPRS communication module by serial ports, and GPRS is logical
It interrogates module and monitoring central server is sent to by GPRS network, monitoring central server can specify the specific of received information
Position is more advantageous to and is analyzed, for processing.
Detailed description of the invention
Fig. 1 is circuit module figure of the invention.
Fig. 2 is circuit diagram of the invention.
Fig. 3 is voltage-stabilizing output circuit signal flow figure of the invention.
Specific embodiment
For the present invention aforementioned and other technology contents, feature and effect, in following cooperation with reference to figures 1 through attached drawing 3
To in the detailed description of embodiment, can clearly present.The structure content being previously mentioned in following embodiment is with specification
Attached drawing is reference.
Each exemplary embodiment of the invention is described below with reference to accompanying drawings.
Embodiment one, atmospheric dust based on GPS monitor system, including sensor of dust concentration, GPS positioning module,
GPRS communication module, monitoring central server, the coal mine atmospheric dust concentration information and GPS of the sensor of dust concentration acquisition
The sensor of dust concentration location information of locating module positioning, which is connected to GPRS communication module by serial ports, (may be selected positioning and communication
The GSM+GPRS+GPS module of the model SKC111 of one), GPRS communication module is sent to monitoring center by GPRS network
Server can be specified the specific location of received information by monitoring central server, be more advantageous to using database software etc.
The some region of atmospheric dust concentration information of place coal mine is analyzed accordingly, provides foundation for processing for depositing dust,
The damage of coal mine working environmental security and atmospheric dust to personnel health is reduced, is communicated in sensor of dust concentration and GPRS
Bandpass filtering amplifying circuit, frequency-voltage conversion circuit, voltage-stabilizing output circuit, the bandpass filtering amplification are connected between module
The 200-1000Hz frequency signal that circuit exports the sensor of dust concentration RS485 interface of model GCG1000 through capacitor C1,
Capacitor C2, inductance L1 and inductance L2, inductance L3, capacitor C3 composition the first bandpass filter filter out alien frequencies interference, avoid by
The problem of extraneous frequency signal interferes enters operational amplifier AR1, resistance R1- resistance R5, capacitor C4- capacitor C6, transient state later
Inhibiting the second bandpass filter of diode VD1 composition is 600Hz to centre frequency, and bandwidth is the arteries and veins of the frequency component of 400Hz
It rushes signal to amplify, wherein resistance R2- resistance R4, capacitor C4- capacitor C6, metal-oxide-semiconductor T1, electrolytic capacitor E1, voltage-stabiliser tube Z1, steady
The double-T shaped bandpass filter with feedback of pressure pipe Z2 composition, adjusts the frequency of the value adjustable center frequency of any resistance or capacitor
Rate component, the impedance structure that operational amplifier AR1, resistance R1, resistance R5 and the double-T shaped bandpass filter in parallel with resistance R5 generate
At amplifier, only make centre frequency 600Hz, bandwidth amplifies for the pulse signal of 400Hz frequency component (makes pulse signal
In+2V ~+6V range), Transient Suppression Diode VD1 enters voltage to frequency conversion chip for inhibiting electromagnetic interference later
U1, resistance R6- resistance R11, capacitor C7- capacitor C9, potentiometer RP1 component frequency voltage conversion circuit are converted to frequency into line
Property 3V-15V voltage signal, finally enter voltage-stabilizing output circuit, pass through triode Q1, Q2, voltage-stabiliser tube TL431 composition voltage
It adjusts circuit and carries out pressure stabilizing, wherein triode Q1, Q2 is compound adjustment pipe, since the reference pole of voltage-stabiliser tube TL431 is connected through electricity
Hinder the output signal of the voltage regulator circuit of the bleeder circuit acquisition of R13, potentiometer RP2 composition, the output of voltage regulator circuit
When signal intensity, the cathode regulation value of voltage-stabiliser tube TL431 changes, and is added to triode Q2 base stage, makes the BE of compound adjustment pipe
Junction voltage changes, so make compound adjustment pipe CE junction voltage and then change, export stable 3V-15V voltage, after pass through
Inductance L4- inductance L6, capacitor C10, the output matching circuit of resistance R14 composition and Serial Port Line carry out impedance matching, zero-decrement
The RS232 interface for transferring signals to GPRS communication module, guarantee signal meet RS232 communication interface to signal amplitude (+3V ~+
Requirement 15V) improves the precision that monitoring central server receives signal.
Embodiment two, on the basis of example 1, the frequency-voltage conversion circuit receive bandpass filtering amplifying circuit
Output filters out alien frequencies signal, amplified pulse signal, can be LM331 by voltage to frequency conversion chip U1(model),
Resistance R6- resistance R11, capacitor C7- capacitor C9, potentiometer RP1 component frequency voltage conversion circuit is converted to and 200-1000Hz
The pin 8 of the linear 3V-15V voltage signal of frequency, including voltage to frequency conversion chip U1, voltage to frequency conversion chip U1 connects
Power supply+20V, pin 3, the connection of pin 4 ground of voltage to frequency conversion chip U1 are met, the pin 5 of voltage to frequency conversion chip U1 divides
Not Lian Jie one end of ground capacity C9, resistance R10 one end, the pin 7 of voltage to frequency conversion chip U1 is separately connected ground connection electricity
One end of R7, one end of resistance R8 are hindered, the pin 6 of voltage to frequency conversion chip U1 is separately connected one end of capacitor C7, resistance R6
One end, the other end of resistance R10, the other end of resistance R8, resistance R6 the other end be all connected with power supply+20V, capacitor C7's is another
One end connects the output end of operational amplifier AR1, and the pin 2 of voltage to frequency conversion chip U1 connects one end of resistance R9, resistance
The other end of R9 is separately connected the upper end and adjustable end of potentiometer RP1, and the lower end of potentiometer RP1 connects ground, voltage to frequency conversion
The pin 1 of chip U1 is separately connected one end of one end of ground resistance R11, ground capacity C8, voltage to frequency conversion chip U1's
Pin 1 is the output signal of frequency-voltage conversion circuit；
The voltage-stabilizing output circuit receives the 3V-15V voltage signal of frequency-voltage conversion circuit output, into triode Q1, Q2,
The voltage regulator circuit of voltage-stabiliser tube TL431 composition, wherein triode Q1, Q2 is compound adjustment pipe, due to the ginseng of voltage-stabiliser tube TL431
Examine the output signal of the voltage regulator circuit for the bleeder circuit acquisition that pole connection is formed through resistance R13, potentiometer RP2, voltage tune
When the output signal variation on economize on electricity road, the cathode regulation value of voltage-stabiliser tube TL431 changes, and is added to triode Q2 base stage, makes multiple
The BE junction voltage for closing adjustment pipe changes, and then changes the CE junction voltage of compound adjustment pipe and then, exports stable 3V-
15V voltage, after through inductance L4- inductance L6, capacitor C10, resistance R14 composition output matching circuit and Serial Port Line progress
Match, the zero-decrement RS232 interface for transferring signals to GPRS communication module, including triode Q1, triode Q2, resistance R12,
The collector of triode Q1, the collector of triode Q2, resistance R12 one end be all connected with the pin of voltage to frequency conversion chip U1
1, the emitter of triode Q1 is separately connected one end of one end of resistance R13, inductance L4, and the other end of resistance R13 is separately connected
The reference pole of the upper end of potentiometer RP2 and adjustable end, voltage-stabiliser tube TL431, the lower end of potentiometer RP2 and the sun of voltage-stabiliser tube TL431
Pole connection ground, the cathode of voltage-stabiliser tube TL431 are separately connected the base stage of the other end of resistance R12, triode Q2, the hair of triode Q2
The base stage of emitter-base bandgap grading connecting triode Q1, the other end of inductance L4 are separately connected the left end of inductance L5, one end of capacitor C10, capacitor
One end of C11, the right end of inductance L5 are separately connected the upper end of the other end of capacitor C11, resistance R14, the lower end connection of resistance R14
The right end of inductance L6, the other end of capacitor C10, the left end of inductance L6 are all connected with ground, and the right end of inductance L5 is voltage-stabilizing output circuit
Output signal.
Embodiment three, on the basis of example 2, the bandpass filtering amplifying circuit receive the powder of model GCG1000
Its bug dust concentration that underground coal mine air is detected using light scattering principle of dust concentration sensors X 1(, measurement error≤±
10%) the 200-1000Hz frequency signal of RS485 interface output, passes through capacitor C1, capacitor C2, inductance L1 and inductance L2, inductance
First bandpass filter of L3, capacitor C3 composition filters out alien frequencies interference, the height that specific capacitor C1, capacitor C2, inductance L1 are formed
The low-pass filter circuit that bandpass filter circuit series inductance L2, inductance L3, capacitor C3 are formed constitutes the first bandpass filter, only allows
The frequency component of 200-1000Hz frequency signal passes through, other frequency components is prevented to pass through, and it is adjustable to adjust any inductance, capacitance
Section allow by range of frequency components, filtered out interference signal, improved anti-interference ability, later enter operational amplifier
The second bandpass filter that AR1, resistance R1- resistance R5, capacitor C4- capacitor C6, Transient Suppression Diode VD1 are formed is to center frequency
Rate is 600Hz, and bandwidth is that the frequency signal of 400Hz amplifies, wherein resistance R2- resistance R4, capacitor C4- capacitor C6, metal-oxide-semiconductor
The double-T shaped bandpass filter with feedback that T1, electrolytic capacitor E1, voltage-stabiliser tube Z1, voltage-stabiliser tube Z2 are formed, adjusts any resistance or electricity
The frequency component of the value adjustable center frequency of appearance, operational amplifier AR1, resistance R1, resistance R5 and the double Ts in parallel with resistance R5
The impedance that type bandpass filter generates constitutes amplifier, only makes centre frequency 600Hz, and bandwidth is the arteries and veins of 400Hz frequency component
Signal is rushed to amplify and (make pulse signal in+2V ~+6V range), Transient Suppression Diode VD1 is used to inhibit electromagnetic interference,
The pin 1 of sensor of dust concentration X1 including model GCG1000, sensor of dust concentration X1 are connected with one end of capacitor C1
The pin 3 of power supply+24V, sensor of dust concentration X1 connect ground, the pin of sensor of dust concentration X1 with the other end of capacitor C1
The cathode of 2 connection capacitor C1, the anode of capacitor C1 are separately connected the cathode of one end of inductance L1, capacitor C2, the anode of capacitor C2
One end of inductance L2 is connected, the other end of inductance L2 is separately connected one end of one end of inductance L3, capacitor C3, inductance L1's
The other end, capacitor C3 the other end be all connected with ground, the other end of inductance L3 is separately connected the homophase input of operational amplifier AR1
End, one end of capacitor C4, one end of resistance R4, one end of resistance R5, Transient Suppression Diode VD1 left end, capacitor C4's is another
One end is separately connected one end of one end of ground resistance R2, capacitor C6, and the other end of resistance R4 is separately connected ground capacity C5's
One end, resistance R3 one end, the other end of resistance R3 be separately connected the other end of resistance R5, the other end of capacitor C6, transient state suppression
The output end of the right end of diode VD1 processed, operational amplifier AR1, the inverting input terminal of operational amplifier AR1 are connected by resistance R1
Ground connection, the output end of operational amplifier AR1 are the output signal of bandpass filtering amplifying circuit.
When the present invention is specifically used, the coal mine atmospheric dust concentration information and GPS of the sensor of dust concentration acquisition are fixed
The sensor of dust concentration location information of position module positioning is connected to GPRS communication module by serial ports and (positioning and communication one may be selected
The GSM+GPRS+GPS module of the model SKC111 of body), GPRS communication module is sent to monitoring center by GPRS network and takes
Business device, the specific location of received information can be specified by monitoring central server, is more advantageous to using database software etc. pair
The some region of atmospheric dust concentration information of place coal mine is analyzed accordingly, is provided foundation for processing for depositing dust, is dropped
The damage of low coal mine working environmental security and atmospheric dust to personnel health, for solve data conversion device conversion in vulnerable to
Extraneous frequency signal interference, converted signals, which exist, is unsatisfactory for requirement of the RS232 communication interface to signal amplitude (+3V ~+15V)
It is topic, bandpass filtering amplifying circuit, voltage to frequency conversion is connected between sensor of dust concentration and GPRS communication module
Circuit, voltage-stabilizing output circuit, the bandpass filtering amplifying circuit meet the sensor of dust concentration RS485 of model GCG1000
The 200-1000Hz frequency signal of mouth output is formed through capacitor C1, capacitor C2, inductance L1 and inductance L2, inductance L3, capacitor C3
First bandpass filter filters out alien frequencies interference, avoids the problem of being interfered by extraneous frequency signal, enters operational amplifier later
The second bandpass filter that AR1, resistance R1- resistance R5, capacitor C4- capacitor C6, Transient Suppression Diode VD1 are formed is to center frequency
Rate is 600Hz, and bandwidth is that the pulse signal of the frequency component of 400Hz amplifies, wherein resistance R2- resistance R4, capacitor C4- electricity
The double-T shaped bandpass filter with feedback for holding C6, metal-oxide-semiconductor T1, electrolytic capacitor E1, voltage-stabiliser tube Z1, voltage-stabiliser tube Z2 composition, adjusts and appoints
The frequency component of the value adjustable center frequency of one resistance or capacitor, operational amplifier AR1, resistance R1, resistance R5 and and resistance
The impedance that the double-T shaped bandpass filter of R5 parallel connection generates constitutes amplifier, only makes centre frequency 600Hz, and bandwidth is 400Hz frequency
The pulse signal of rate component amplifies and (makes pulse signal in+2V ~+6V range), and Transient Suppression Diode VD1 is for inhibiting
Electromagnetic interference enters voltage to frequency conversion chip U1, resistance R6- resistance R11, capacitor C7- capacitor C9, potentiometer RP1 group later
The 3V-15V voltage signal linear with frequency is converted at frequency-voltage conversion circuit, finally enters voltage-stabilizing output circuit, is led to
The voltage regulator circuit for crossing triode Q1, Q2, voltage-stabiliser tube TL431 composition carries out pressure stabilizing, and wherein triode Q1, Q2 is compound adjustment
Pipe, due to the voltage adjusting for the bleeder circuit acquisition that the reference pole connection of voltage-stabiliser tube TL431 is formed through resistance R13, potentiometer RP2
The output signal of circuit, when the output signal of voltage regulator circuit changes, the cathode regulation value of voltage-stabiliser tube TL431 changes,
Be added to triode Q2 base stage, the BE junction voltage of compound adjustment pipe made to change, so make the CE junction voltage of compound adjustment pipe with
Variation, export stable 3V-15V voltage, after through inductance L4- inductance L6, capacitor C10, resistance R14 composition output match
Circuit and Serial Port Line carry out impedance matching, and the zero-decrement RS232 interface for transferring signals to GPRS communication module guarantees signal
Meet requirement of the RS232 communication interface to signal amplitude (+3V ~+15V), improves the essence that monitoring central server receives signal
Degree.
Claims (3)
1. atmospheric dust based on GPS monitors system, including sensor of dust concentration, GPS positioning module, GPRS communication module,
Monitoring central server, the coal mine atmospheric dust concentration information of the sensor of dust concentration acquisition and GPS positioning module positioning
Sensor of dust concentration location information GPRS communication module is connected to by serial ports, GPRS communication module passes through GPRS network and sends
To monitoring central server, which is characterized in that be connected with bandpass filtering between sensor of dust concentration and GPRS communication module
Amplifying circuit, frequency-voltage conversion circuit, voltage-stabilizing output circuit, the bandpass filtering amplifying circuit is by model GCG1000's
The 200-1000Hz frequency signal of sensor of dust concentration RS485 interface output is through capacitor C1, capacitor C2, inductance L1 and inductance
The first bandpass filter that L2, inductance L3, capacitor C3 are formed enters operational amplifier AR1, resistance R1- electricity after filtering out alien frequencies interference
The second bandpass filter for hindering R5, capacitor C4- capacitor C6, Transient Suppression Diode VD1 composition is 600Hz, band to centre frequency
Width is that the pulse signal of the frequency component of 400Hz amplifies, and enters voltage to frequency conversion chip U1, resistance R6- resistance later
R11, capacitor C7- capacitor C9, potentiometer RP1 component frequency voltage conversion circuit are converted to the 3V-15V voltage linear with frequency
Signal finally enters voltage-stabilizing output circuit, the voltage regulator circuit being made up of triode Q1, Q2, voltage-stabiliser tube TL431, output
Stable 3V-15V voltage, inductance L4- inductance L6, capacitor C10, the output matching circuit of resistance R14 composition and Serial Port Line carry out
Matching, the zero-decrement RS232 interface for transferring signals to GPRS communication module.
2. the atmospheric dust based on GPS monitors system as described in claim 1, which is characterized in that the voltage to frequency conversion electricity
Road includes voltage to frequency conversion chip U1, and the pin 8 of voltage to frequency conversion chip U1 connects power supply+20V, and voltage to frequency converts core
Pin 3, the connection of pin 4 ground of piece U1, the pin 5 of voltage to frequency conversion chip U1 are separately connected one end of ground capacity C9, electricity
One end of R10 is hindered, the pin 7 of voltage to frequency conversion chip U1 is separately connected one end of one end of ground resistance R7, resistance R8, frequency
The pin 6 of rate voltage conversion chip U1 is separately connected one end of one end of capacitor C7, resistance R6, the other end, the resistance of resistance R10
The other end of R8, the other end of resistance R6 are all connected with power supply+20V, the output of the other end connection operational amplifier AR1 of capacitor C7
End, the pin 2 of voltage to frequency conversion chip U1 connect one end of resistance R9, and the other end of resistance R9 is separately connected potentiometer RP1
Upper end and adjustable end, the lower end of potentiometer RP1 connects ground, and the pin 1 of voltage to frequency conversion chip U1 is separately connected ground connection electricity
One end of R11, one end of ground capacity C8 are hindered, the pin 1 of voltage to frequency conversion chip U1 is the defeated of frequency-voltage conversion circuit
Signal out；
The voltage-stabilizing output circuit includes triode Q1, triode Q2, resistance R12, the collector of triode Q1, triode Q2
Collector, resistance R12 one end be all connected with the pin 1 of voltage to frequency conversion chip U1, the emitter of triode Q1 is separately connected
One end of resistance R13, inductance L4 one end, the other end of resistance R13 is separately connected the upper end of potentiometer RP2 and adjustable end, steady
The reference pole of pressure pipe TL431, the lower end of potentiometer RP2 connect ground, the cathode of voltage-stabiliser tube TL431 with the anode of voltage-stabiliser tube TL431
It is separately connected the other end of resistance R12, the base stage of triode Q2, the base stage of the emitter connecting triode Q1 of triode Q2, electricity
Sense L4 the other end be separately connected the left end of inductance L5, one end of capacitor C10, capacitor C11 one end, inductance L5 right end difference
The other end of capacitor C11, the upper end of resistance R14 are connected, the right end of the lower end connection inductance L6 of resistance R14, capacitor C10's is another
End, inductance L6 left end be all connected with ground, the right end of inductance L5 is the output signal of voltage-stabilizing output circuit.
3. the atmospheric dust based on GPS monitors system as described in claim 1, which is characterized in that the bandpass filtering amplification electricity
Road includes the sensor of dust concentration X1 of model GCG1000, and the pin 1 of sensor of dust concentration X1 and one end of capacitor C1 connect
Power supply+24V is met, the pin 3 of sensor of dust concentration X1 connects ground with the other end of capacitor C1, and sensor of dust concentration X1's draws
Foot 2 connects the cathode of capacitor C1, and the anode of capacitor C1 is separately connected the cathode of one end of inductance L1, capacitor C2, and capacitor C2 is just
Pole connects one end of inductance L2, and the other end of inductance L2 is separately connected one end of one end of inductance L3, capacitor C3, inductance L1
The other end, capacitor C3 the other end be all connected with ground, the other end of inductance L3 is separately connected the same mutually defeated of operational amplifier AR1
Enter end, one end of capacitor C4, one end of resistance R4, one end of resistance R5, Transient Suppression Diode VD1 left end, capacitor C4's
The other end is separately connected one end of one end of ground resistance R2, capacitor C6, and the other end of resistance R4 is separately connected ground capacity C5
One end, resistance R3 one end, the other end of resistance R3 is separately connected the other end of resistance R5, the other end of capacitor C6, transient state
Inhibit the right end of diode VD1, the output end of operational amplifier AR1, the inverting input terminal of operational amplifier AR1 passes through resistance R1
Connection ground, the output end of operational amplifier AR1 are the output signal of bandpass filtering amplifying circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811635547.3A CN109765153B (en) | 2018-12-29 | 2018-12-29 | Atmosphere dust monitoring system based on GPS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811635547.3A CN109765153B (en) | 2018-12-29 | 2018-12-29 | Atmosphere dust monitoring system based on GPS |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109765153A true CN109765153A (en) | 2019-05-17 |
| CN109765153B CN109765153B (en) | 2020-06-05 |
Family
ID=66453016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811635547.3A Active CN109765153B (en) | 2018-12-29 | 2018-12-29 | Atmosphere dust monitoring system based on GPS |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109765153B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040052219A1 (en) * | 2002-09-18 | 2004-03-18 | Icp Electronics Inc. | Gate controller for controlling digital asynchronized half-duplex serial transmission between multi-interfaces and method for controlling the same |
| CN202998070U (en) * | 2013-01-16 | 2013-06-12 | 王坚 | Digital frequency voltage conversion circuit |
| CN104345021A (en) * | 2014-10-29 | 2015-02-11 | 苏州市职业大学 | PM2.5 monitoring and pollution source area positioning system based on urban road network |
| CN204313869U (en) * | 2015-01-12 | 2015-05-06 | 郑州航空工业管理学院 | A kind of Collection device |
| CN205140185U (en) * | 2015-11-05 | 2016-04-06 | 中环天仪股份有限公司 | Calorimeter concentrator of integrated GPRS module |
| KR20170057597A (en) * | 2015-11-17 | 2017-05-25 | 주식회사 오픈잇 | System for providing air quality |
| CN206378392U (en) * | 2016-11-11 | 2017-08-04 | 深圳市美信创景技术有限公司 | Air atom Acquisition Instrument and air discharge remote real-time video monitoring system |
| CN206990400U (en) * | 2017-07-20 | 2018-02-09 | 广东北斗翔晨科技有限公司 | Atmosphere quality monitoring device |
| CN207690249U (en) * | 2017-12-28 | 2018-08-03 | 河南理工大学 | A kind of electrical fire safety monitoring device |
-
2018
- 2018-12-29 CN CN201811635547.3A patent/CN109765153B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040052219A1 (en) * | 2002-09-18 | 2004-03-18 | Icp Electronics Inc. | Gate controller for controlling digital asynchronized half-duplex serial transmission between multi-interfaces and method for controlling the same |
| CN202998070U (en) * | 2013-01-16 | 2013-06-12 | 王坚 | Digital frequency voltage conversion circuit |
| CN104345021A (en) * | 2014-10-29 | 2015-02-11 | 苏州市职业大学 | PM2.5 monitoring and pollution source area positioning system based on urban road network |
| CN204313869U (en) * | 2015-01-12 | 2015-05-06 | 郑州航空工业管理学院 | A kind of Collection device |
| CN205140185U (en) * | 2015-11-05 | 2016-04-06 | 中环天仪股份有限公司 | Calorimeter concentrator of integrated GPRS module |
| KR20170057597A (en) * | 2015-11-17 | 2017-05-25 | 주식회사 오픈잇 | System for providing air quality |
| CN206378392U (en) * | 2016-11-11 | 2017-08-04 | 深圳市美信创景技术有限公司 | Air atom Acquisition Instrument and air discharge remote real-time video monitoring system |
| CN206990400U (en) * | 2017-07-20 | 2018-02-09 | 广东北斗翔晨科技有限公司 | Atmosphere quality monitoring device |
| CN207690249U (en) * | 2017-12-28 | 2018-08-03 | 河南理工大学 | A kind of electrical fire safety monitoring device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109765153B (en) | 2020-06-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110085019A (en) | Wisdom chemical industry ground construction environment signal acquisition emitter | |
| CN109596483A (en) | A kind of operating environment detection system | |
| CN110136423A (en) | Intelligent site construction environmental detection set | |
| CN203241817U (en) | On-line intelligent analysis and control system for operation parameters of oil pumping machine | |
| CN104192687B (en) | Cage monitoring device | |
| CN111179529A (en) | Power cable prevents destroying early warning system | |
| CN109743057A (en) | A kind of data transmission of internet of things calibration equipment | |
| CN204212809U (en) | A kind of novel intelligent safety for tunnel engineering monitoring system | |
| CN104343463B (en) | A kind of spray precipitation method for underground coal mine flow automatic regulation | |
| CN110380744B (en) | Building site fire safety management system based on thing networking | |
| CN204065423U (en) | Field discrete earthquake digital recording equipment | |
| CN109765153A (en) | Atmospheric dust based on GPS monitors system | |
| CN109632592A (en) | Atmospheric dust monitoring signals data conversion device | |
| CN109512400B (en) | Monitoring device for feeding back body indexes of special operating personnel in real time | |
| CN111504868B (en) | Building construction raise dust monitoring system based on big data | |
| CN104840201A (en) | Main flow type breathing flow real-time monitoring device and method | |
| CN107340431A (en) | A kind of earth resistance tester | |
| CN204185082U (en) | A kind of cage control monitor unit | |
| CN109443520A (en) | A kind of noise testing real-time data transmission device | |
| CN209591060U (en) | A kind of turning machine accident warning device | |
| CN104101900A (en) | Field discrete type seismic digital recording instrument | |
| CN210669998U (en) | Tower crane gradient monitoring devices | |
| CN211237053U (en) | Power cable prevents destroying early warning system | |
| CN211089677U (en) | Groundwater environment monitoring system based on thing networking | |
| CN204374162U (en) | A kind of boats and ships oil gas detects embedded explosion-proof safety protection device in real time |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |