CN105303778A - Dual-mode air peculiar smell monitoring and early warning system based on characteristic pollutants and electron nose - Google Patents
Dual-mode air peculiar smell monitoring and early warning system based on characteristic pollutants and electron nose Download PDFInfo
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- CN105303778A CN105303778A CN201510126202.5A CN201510126202A CN105303778A CN 105303778 A CN105303778 A CN 105303778A CN 201510126202 A CN201510126202 A CN 201510126202A CN 105303778 A CN105303778 A CN 105303778A
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Abstract
The invention discloses a dual-mode air peculiar smell monitoring and early warning system based on characteristic pollutants and an electron nose. The air monitoring and early warning device comprises a polluting substance concentration monitoring module and a peculiar smell monitoring module, wherein the polluting substance concentration monitoring module is arranged for monitoring the polluting substance concentration in the air; and the peculiar smell monitoring module is used for monitoring the peculiar smell in the air. According to the air monitoring and early warning device of the invention, the main polluting substance concentration can be measured continuously, the air peculiar smell sensing degree can be monitored quantitatively, the air peculiar smell monitoring management technical defects in the prior art are overcome, real-time, online and remote air sampling, monitoring and early warning can be carried out on the air environment, and the system of the invention can be applied to real-time remote monitoring, emergent early warning and coordinated control of an odor pollution source region, a frontier district and a surrounding sensitizing range.
Description
Technical field
The present invention relates to environmental monitoring field, particularly relate to a kind of feature based pollutant and Electronic Nose double mode air peculiar smell monitor and early warning system.
Background technology
Stench, comparatively other atmospheric pollution of the pungent air peculiar smell such as fragrance and other waste gas, it is a kind of environmental pollution causing the psychological impact of people to be principal character, under characteristic feature pollutant prolonged high concentrations exposure simultaneously in air peculiar smell, direct Harmfulness analyse can be had to the work crowd near air peculiar smell occurring source, the around population health of sensitizing range.
Odorant known at present has kind more than 4,000, common are sulfuretted hydrogen, sulphuric dioxide, mercaptan, thioether, ammonia, volatile organic compounds (VOC) class, indoles etc., they can send and be similar to unpleasant or irritating smells such as rotten egg, rotten onion, human excrement be smelly, foul gas pollutes surrounding air, and has impact to PM2.5.Further, foul gas is mostly toxic, harmful, makes people feel sick, cause a disease, have a strong impact on resident's physical and mental health after odorant entered environment air.The standard relating to foul gas detection at present mainly contains: CNS (GB/T14675-93), Unite States Standard (USS) (ASTME679-04standard), European standard (EN1375Standard), DIN (VD13940Standard).In China, at present by artificial sample, laboratory is taken back to the detection existing national standards of foul gas and carry out contrast by " distinguishing smelly teacher " and distinguish smelly.
This passive personal monitoring's mode can not manage the discharge of foul gas, prevent, control in real time; Can not also solve the environmental problem of arranging steathily, omit in printing and happening suddenly, unfavorable supervision by Timeliness coverage.And stench is large to the body & mind harm of smelling smelly teacher, is also often under suspicion in accuracy.
Therefore, there is the restrictions such as workload is large, differentiation air peculiar smell grade is coarse in personal monitoring's mode that the regular Olfactometry of the person of distinguishing is smelt in utilization at present, is difficult to adapt to surrounding resident to the supervision demand of good air quality.Scientific and effective supervision early warning means are still lacked to the problem of environmental pollution of air peculiar smell uncontrollable discharge.
In addition, due to the appreciable impact by meteorological condition and production technology, exhaust emission distributes the feature with paroxysmal, transient behavior, and therefore those skilled in the art are devoted to develop a kind of technology for air continuous real-time monitoring.
Adopt the continuous monitoring feature pollutant levels of real-time online will become local government department, environment monitoring department and the associated production technique enterprise effective tool to air smell pollution enforcement supervision such as stenches.
Summary of the invention
Because the above-mentioned defect of prior art, object of the present invention mainly overcomes air peculiar smell monitoring management technological deficiency in prior art, there is provided one both can continuous coverage major pollutants material concentration, the double mode online air peculiar smell monitor and early warning system of monitoring air peculiar smell sense organ degree can be quantized again simultaneously.
For achieving the above object, the invention provides a kind of integrated system air peculiar smell environment being carried out to gas sampling, monitoring, early warning, be applicable to the technical field of odor pollution source region, frontier district and the around real-time remote monitoring of sensitizing range, emergency advance warning and coordinated signals.
In order to realize above-mentioned double mode air peculiar smell monitor and early warning system, the invention provides a kind of air monitering prior-warning device, described air monitering prior-warning device comprises:
Pollutant concentration monitoring modular and peculiar smell monitoring modular,
Described pollutant concentration monitoring modular is arranged for the pollutant concentration in monitoring air;
Described peculiar smell monitoring modular is arranged for monitoring air peculiar smell.
Preferably, described polluter at least comprises: VOC, H
2s and NH
3.Further, described pollutant concentration monitoring modular comprises VOC sensor for monitoring VOC concentration, for monitoring H
2the H of S concentration
2sensor and for monitoring NH
3concentration NH
3sensor.
Preferably, described peculiar smell monitoring modular comprises Electronic Nose odor analyses system.Described Electronic Nose odor analyses system can adopt commercially available Electronic Nose odor analyses instrument.
Preferably, described monitoring is that real-time online is monitored continuously.
Preferably, described air monitering prior-warning device also comprises air sampling module, and air to be measured enters described air sampling module, so detect by described pollutant concentration monitoring modular.Further, described air sampling module comprises: gas sampling assembly, gas filtering component and zero gas calibration assemblies; Described gas sampling assembly comprises air pump and air chamber; Described gas filtering component comprises external filtering element and inserted filter units; Described zero gas calibration assemblies comprises Zero gas generator and dynamic gas regulator; Produce negative pressure by air pump, air enters described air chamber through external filtering element, inserted filter units and Zero gas generator and dynamic gas regulator successively, and described air chamber is constant temperature, constant humidity air chamber.
Preferably, described air monitering prior-warning device also comprises electric system, and described electric system provides power supply for described air monitering prior-warning device.Further, described electric system comprises generator unit and Storage Unit, and described generator unit comprises Wind turbines and/or electro-optical package, the generation electric energy of described generator unit, and exists in described Storage Unit.More preferably, described electric system also comprises line interface, and access electrical network provides emergency power pack for described air monitering prior-warning device.
Preferably, described air monitering prior-warning device also comprises meteorological information acquisition module, and described meteorological information acquisition module is arranged for the local weather information gathering and install described air monitering prior-warning device position.Described weather information comprises, wind speed, wind direction, temperature, humidity, air pressure etc.
Preferably, described air monitering prior-warning device also comprises video camera module, and described video camera module is arranged for monitoring visually and installs the environment of described air monitering prior-warning device position.
Preferably, described air monitering prior-warning device also comprises data processing module.Described data processing module is arranged for Treatment Analysis, storage send the data message that described pollutant concentration monitoring modular and described peculiar smell monitoring modular produce.Further, described data processing module comprises data acquisition unit, data processing unit and data transmission unit, and described data acquisition unit acquires is selected from one or more groups following data: temperature, humidity, temperature, air pressure, wind speed, wind direction, H
2s concentration, NH
3concentration, TVOC concentration and peculiar smell concentration; Described data processing unit stores once the data (preferably, n is the data of data acquisition unit acquires as described in integer (as 3,4,5,6,7,8,9) between 2-10 stores once) of described data acquisition unit acquires second every n; Described data transmission unit outwards sends a secondary data (preferably, m is 10-100 times of n, is more preferably 20-30 times) every m second.Further, the mean value that the data that described data transmission unit sends are the data that store of described data processing unit within m second.
Preferably, described air monitering prior-warning device also comprises data center's monitor supervision platform, and described data center monitor supervision platform receives the data that described data processing module (data transmission unit) sends, and Macro or mass analysis forms air detection report.More preferably, described data processing module adopts the mode of wireless transmission to described data center monitor supervision platform transmission data.
Technique effect
Air monitering prior-warning device of the present invention both can continuous coverage major pollutants material concentration, can quantize again monitoring air peculiar smell sense organ degree simultaneously, overcome air peculiar smell monitoring management technological deficiency in prior art.The sampling of real-time online remote gas, monitoring and early warning can be carried out to air ambient, be applicable to odor pollution source region, frontier district and the around real-time remote monitoring of sensitizing range, emergency advance warning and coordinated signals.And possess from maintaining electric power system and data wireless transmitting system, can field be deployed in, convenient layout.
The present invention is based on characteristic contamination concentration and the double mode monitoring of Electronic Nose peculiar smell concentration, pass through system integration, realize online sampling, certainly maintain energy supply, wireless type Remote data processing function, build a kind of feature based pollutant and Electronic Nose double mode air peculiar smell monitor and early warning system.
Be described further below with reference to the technique effect of accompanying drawing to design of the present invention, concrete structure and generation, to understand object of the present invention, characteristic sum effect fully.
Accompanying drawing explanation
Fig. 1 is the structural representation of a preferred embodiment of the present invention.
Fig. 2 is the pollutant concentration monitoring modular structural representation of a preferred embodiment of the present invention.
Fig. 3 is the air sampling modular structure schematic diagram of a preferred embodiment of the present invention.
Fig. 4 is the data processing module structural representation of a preferred embodiment of the present invention.
Embodiment
Air sampling module
Air monitering prior-warning device of the present invention comprises air sampling module, and air to be measured enters described air sampling module, so detect by described pollutant concentration monitoring modular.Further, described air sampling module comprises: gas sampling assembly, gas filtering component and zero gas calibration assemblies; Described gas sampling assembly comprises air pump and air chamber; Described gas filtering component comprises external filtering element and inserted filter units; Described zero gas calibration assemblies comprises Zero gas generator and dynamic gas regulator; Produce negative pressure by air pump, air enters described air chamber through external filtering element, inserted filter units and Zero gas generator and dynamic gas regulator successively, and described air chamber is constant temperature, constant humidity air chamber.
Gas sampling assembly produces the gas of negative pressure collection site by pump suction type, by kapillary, flowmeter, gas on-site is carried out to the control of pressure and total amount, and the air chamber of constant temperature and humidity avoids temperature, humidity to the change of gas generant reason.
Gas filtering component comprises external filtering element and inserted filter units, and external filtering element avoids on-the-spot particle having an impact to gas path pipe.Embedded filtering element adopts nanofiltration material, avoids finely ground particles to the absorption of sensing unit, reduces metrical error.
Zero gas calibration assemblies comprises Zero gas generator and dynamic gas regulator, by the transfer valve at scene, makes zero gas generating system carry out the cleaning calibration of 10-15 minute at zero point every day to gas circuit.The wherein cleaning to pipeline in first 5 minutes, 5-10 minute being preliminary to calibrating the zero point of sensor, within 10-15 minute, guaranteeing zero point stability.
Pollutant concentration monitoring modular
Air monitering prior-warning device of the present invention comprises pollutant concentration monitoring modular, carries out detection analyze the characteristic contamination in air chamber.Pollutant concentration monitoring modular comprises TVOC sensor for monitoring TVOC concentration, for monitoring H
2the H of S concentration
2sensor and for monitoring NH
3concentration NH
3sensor.
1, NH3: instrument adopts electrochemical sensing technology and microcontroller technology, and signal stabilization, precision is high, reproducible.
1.1, measurement range: 0 ~ 10PPm
1.2, resolution: 0.01ppm
1.3, repeatability :≤± 1.0%
1.4, the response time :≤20 seconds (T90)
2, H
2s: instrument adopts electrochemical sensing technology, repeatability number, response is fast, by reference instrument and mathematical model, guarantees its high precision.
2.1, measurement range: 0 ~ 4PPm
2.2, resolution: 0.02ppm
2.3, repeatability :≤± 1.0%
2.4, the response time :≤1 second
3, TVOC: adopt optical sensor technology, linear stable, precision is high.
3.1, measurement range: 0.05 ~ 50PPm
3.2, resolution: 0.05ppm
3.3, repeatability :≤± 1.0%
3.4, the response time :≤3 seconds.
Peculiar smell monitoring modular
Air monitering prior-warning device of the present invention comprises peculiar smell monitoring modular.Peculiar smell monitoring modular of the present invention comprises Electronic Nose odor analyses system.Described Electronic Nose odor analyses system can adopt commercially available Electronic Nose odor analyses instrument.
Electronic Nose mainly contains gas sensor array, Signal Pretreatment and simulation pre-service and pattern-recognition three part composition.By carrying out the olfactory system of simulating human to the monitoring of one or more odoring substances.Air peculiar smell grade needs Electronic Nose, smell the person of debating and smell and debate instrument and carry out matching domestication.
Video camera module
Air monitering prior-warning device of the present invention comprises video camera module, and described video camera module is arranged for monitoring visually and installs the environment of described air monitering prior-warning device position.
High integration 16 bit processor is adopted, extremely low power dissipation in the present invention, superpower stable.Built-in high power red outer array lamp, luminescence efficiency superelevation, light filling is even, and heat is little, and night visual range can reach 80 meters; The burnt laser lamp of more optional distribution transforming, adopts 0.9 ° of precision electric motor to drive, the level and smooth non-jitter of slow running.Use technical grade components and parts, the ball machine life-span is longer.
A. level 360 ° of infinite place continuous rotations, its velocity of rotation is from 0.01 ~ 300rad/s continuous setup; Vertical direction slewing area 0 ~ 90 °, turn up 120rad/s.
B. slow running steadily, ultra-low noise, picture non-jitter.
C.180 ° automatic turning, realizes comprehensively monitoring without blind spot, positioning precision reaches ± and 0.1 °.
Meteorological information acquisition module
Air monitering prior-warning device of the present invention comprises meteorological information acquisition module, and described meteorological information acquisition module is arranged for the local weather information gathering and install described air monitering prior-warning device position.Described weather information comprises, wind speed, wind direction, temperature, humidity, air pressure etc.
Meteorological information acquisition module of the present invention, each device parameter, is formulated as follows.
1, measuring wind speed principle: ultrasound wave; Measurement range: 0 ~ 60 meter per second; Resolution: 0.1m/s; Measuring error: 3% of ± 0.3m/s+ measured value.
2, wind direction measuring principle: ultrasound wave; Measurement range: 0 ~ 359.9 ° comprehensive, non-blind area; Resolution: 0.1 °; Measuring error: ± 3 °.
3, temperature survey principle: semiconductor; Measurement range :-40 DEG C ~+80 DEG C; Resolution: 0.1 DEG C; Measuring error: ± 0.2 DEG C of representative value; Drift: <0.04 DEG C/yr.
4, moisture measurement principle: hold formula; Measurement range: 0 ~ 100%RH; Resolution: 0.1%; Measuring accuracy: 3%RH representative value; Drift: <0.5%RH/yr.
5, barometric surveying principle: piezoelectric type; Measurement range: 10 ~ 1100hpa; Measuring error: ± 0.3hPa (25 DEG C); Resolution: 0.1hPa.
6, other parameter, power supply: DC12 ~ 30V; Power consumption: 16mA12V; Sample frequency: 15Hz; Signal exports: RS485; Degree of protection: IP65.
Data processing module
Air monitering prior-warning device of the present invention comprises data processing module.Described data processing module is arranged for Treatment Analysis, storage send the data message that described pollutant concentration monitoring modular and described peculiar smell monitoring modular produce.Further, described data processing module comprises data acquisition unit, data processing unit and data transmission unit, and described data acquisition unit acquires is selected from one or more groups following data: temperature, humidity, temperature, air pressure, wind speed, wind direction, H
2s concentration, NH
3concentration, TVOC concentration and peculiar smell concentration; Described data processing unit stores once the data (preferably, n is the data of data acquisition unit acquires as described in integer (as 3,4,5,6,7,8,9) between 2-10 stores once) of described data acquisition unit acquires second every n; Described data transmission unit outwards sends a secondary data (preferably, m is 10-100 times of n, is more preferably 20-30 times) every m second.Further, the mean value that the data that described data transmission unit sends are the data that store of described data processing unit within m second.
1, data acquisition unit
Adopt the high precision module of 16, image data can be analyzed accurately, to guarantee the accurate of data.Scene gathers 10 groups of data altogether, is respectively temperature, humidity, temperature, air pressure, wind speed, wind direction, H2S, NH3, TVOC and peculiar smell concentration.
2, data processing unit
Often organizing data is all within 5 seconds, being that a unit carries out scene and stores, and data of uploading onto the server for every 2 minutes (be the mean value of 2 minutes, this organizes data and is stored in data center's monitor supervision platform).
3, data transmission
3G is G mobile communication, refers to the cellular mobile telecommunications technology supporting high speed data transfer.3G service can transmit sound and data message simultaneously, and speed is generally at more than hundreds of kbps.
Preferably the data of collection are uploaded onto the server by 3G technology, and carry out further research on the basis of 3G technology, can the long-range operate to scene, carry out field data analysis.
Data center's monitor supervision platform
Air monitering prior-warning device of the present invention comprises data center's monitor supervision platform, and described data center monitor supervision platform receives the data that described data processing module (data transmission unit) sends, and Macro or mass analysis forms air detection report.
Data center's monitor supervision platform is on the basis of data analysis, and field data, server data, real-time weather are offered in advance and analyzed the normal of data and exceptional value.
Electric system
Air monitering prior-warning device of the present invention also comprises electric system, and described electric system provides power supply for described air monitering prior-warning device.
Preferably, in the present invention, adopt wind light mutual complementing from maintaining electric power system, and possess civil power and to meet an urgent need interface.
Embodiment 1
As shown in Figure 1, present embodiments provide a kind of air monitering prior-warning device, described air monitering prior-warning device comprises: air sampling module 1, pollutant concentration monitoring modular 2, peculiar smell monitoring modular 3, data processing module 4, meteorological information acquisition module 5, video camera module 6 and electric system 7.Described pollutant concentration monitoring modular 2 is arranged for the pollutant concentration in monitoring air; Described peculiar smell monitoring modular 3 is arranged for monitoring air peculiar smell.Described polluter at least comprises: TVOC, H
2s and NH
3.The monitoring modular of peculiar smell described in the present embodiment 3 comprises Electronic Nose odor analyses system.
As shown in Figure 2, described pollutant concentration monitoring modular 2 comprises TVOC sensor 21 for monitoring TVOC concentration, for monitoring H
2the H of S concentration
2sensor 22 and for monitoring NH
3concentration NH
3sensor 23.
Monitoring described in the present embodiment is monitored continuously for real-time online.
As shown in Figure 3, the air sampling module 1 of the prior-warning device of air monitering described in the present embodiment, air to be measured enters described air sampling module 1, so detect by described pollutant concentration monitoring modular 2.Further, described air sampling module comprises: gas sampling assembly 11, gas filtering component 12 and zero gas calibration assemblies 13; Described gas sampling assembly 11 comprises air pump and air chamber; Described gas filtering component 12 comprises external filtering element and inserted filter units; Described zero gas calibration assemblies 13 comprises Zero gas generator and dynamic gas regulator; Produce negative pressure by air pump, air enters described air chamber through external filtering element, inserted filter units, Zero gas generator and dynamic gas regulator successively, and described air chamber is constant temperature, constant humidity air chamber.
In the present embodiment, the electric system 7 of air monitering prior-warning device provides power supply for described air monitering prior-warning device.Described electric system comprises generator unit and Storage Unit, and described generator unit comprises Wind turbines and/or electro-optical package, the generation electric energy of described generator unit, and exists in described Storage Unit.Described electric system also comprises line interface, and access electrical network provides emergency power pack for described air monitering prior-warning device.
Described meteorological information acquisition module 5 is arranged for the local weather information gathering and install described air monitering prior-warning device position.Described weather information comprises, wind speed, wind direction, temperature, humidity, air pressure etc.
Described video camera module 6 is arranged for monitoring visually and installs the environment of described air monitering prior-warning device position.
Described data processing module 4 is arranged for Treatment Analysis, storage send the data message that described pollutant concentration monitoring modular 2 and described peculiar smell monitoring modular 3 produce.As shown in Figure 4, described data processing module 4 comprises data acquisition unit 41, data processing unit 42 and data transmission unit 43, and described data acquisition unit is adopted 41 collection and is selected from one or more groups following data: temperature, humidity, temperature, air pressure, wind speed, wind direction, H
2s concentration, NH
3concentration, TVOC concentration and peculiar smell concentration; Described data processing unit 42 stores once the data (preferably, n is the data that data acquisition unit 42 as described in integer (as 3,4,5,6,7,8,9) between 2-10 stores once gathers) of described data acquisition unit acquires second every n; Described data transmission unit 43 outwards sends a secondary data (preferably, m is 10-100 times of n, is more preferably 20-30 times) every m second.Further, the mean value that the data that described data transmission unit 43 sends are the data that store of described data processing unit 42 within m second.
In other embodiments, described air monitering prior-warning device also comprises data center's monitor supervision platform, described data center monitor supervision platform receives the data that described data processing module 4 (data transmission unit 43) sends, and Macro or mass analysis forms air detection report.More preferably, described data processing module adopts the mode of wireless transmission to described data center monitor supervision platform transmission data.
More than describe preferred embodiment of the present invention in detail.Should be appreciated that those of ordinary skill in the art just design according to the present invention can make many modifications and variations without the need to creative work.Therefore, all technician in the art, all should by the determined protection domain of claims under this invention's idea on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment.
Claims (10)
1. an air monitering prior-warning device, is characterized in that, described air monitering prior-warning device comprises:
Pollutant concentration monitoring modular and peculiar smell monitoring modular,
Described pollutant concentration monitoring modular is arranged for the pollutant concentration in monitoring air;
Described peculiar smell monitoring modular is arranged for monitoring air peculiar smell.
2. air monitering prior-warning device as claimed in claim 1, is characterized in that, described pollutant concentration monitoring modular comprises TVOC sensor for monitoring TVOC concentration, for monitoring H
2the H of S concentration
2sensor and for monitoring NH
3concentration NH
3sensor.
3. air monitering prior-warning device as claimed in claim 1, it is characterized in that, described peculiar smell monitoring modular comprises Electronic Nose odor analyses system.
4. air monitering prior-warning device as claimed in claim 1, it is characterized in that, described air monitering prior-warning device also comprises air sampling module, and air to be measured enters described air sampling module, and then detect by described pollutant concentration monitoring modular.
5. air monitering prior-warning device as claimed in claim 1, it is characterized in that, described air monitering prior-warning device also comprises electric system, and described electric system provides power supply for described air monitering prior-warning device.
6. air monitering prior-warning device as claimed in claim 1, it is characterized in that, described air monitering prior-warning device also comprises meteorological information acquisition module, and described meteorological information acquisition module is arranged for the local weather information gathering and install described air monitering prior-warning device position.
7. air monitering prior-warning device as claimed in claim 1, it is characterized in that, described air monitering prior-warning device also comprises video camera module, and described video camera module is arranged for monitoring visually and installs the environment of described air monitering prior-warning device position.
8. air monitering prior-warning device as claimed in claim 1, it is characterized in that, described air monitering prior-warning device also comprises data processing module; Preferably, described data processing module comprises data acquisition unit, data processing unit and data transmission unit, and described data acquisition unit acquires is selected from one or more groups following data: temperature, humidity, temperature, air pressure, wind speed, wind direction, H
2s concentration, NH
3concentration, TVOC concentration and peculiar smell concentration; Described data processing unit stores once the data (preferably, n is the data of data acquisition unit acquires as described in integer (as 3,4,5,6,7,8,9) between 2-10 stores once) of described data acquisition unit acquires second every n; Described data transmission unit outwards sends a secondary data (preferably, m is 10-100 times of n, is more preferably 20-30 times) every m second; Further, the mean value that the data that described data transmission unit sends are the data that store of described data processing unit within m second.
9. air monitering prior-warning device as claimed in claim 5, it is characterized in that, described electric system comprises generator unit and Storage Unit, and described generator unit comprises Wind turbines and/or electro-optical package, the generation electric energy of described generator unit, and exist in described Storage Unit.
10. air monitering prior-warning device as claimed in claim 1, it is characterized in that, described air monitering prior-warning device also comprises data center's monitor supervision platform, described data center monitor supervision platform receives the data that described data processing module (data transmission unit) sends, and Macro or mass analysis forms air detection report.
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