CN105424840B

CN105424840B - On-line continuous atmosphere quality automatic monitor system and peculiar smell air source source tracing method

Info

Publication number: CN105424840B
Application number: CN201510995364.2A
Authority: CN
Inventors: 周俊杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-12-28
Filing date: 2015-12-28
Publication date: 2018-08-28
Anticipated expiration: 2035-12-28
Also published as: CN105424840A

Abstract

The present invention discloses a kind of on-line continuous auto-monitor of surrounding air quality base station and the again Auto-supervisory Measurement Network System of the base station of multiple face sources gridding setting and data processing centre composition and the method traced to the source using the system.Automatic sampling module that the base station is connected by data transmission module, sensor assembly and meteorological monitoring modular form, the data processing centre of described monitoring network system be equipped with database, property data, air plllutant model.The system is arranged once occurs sample event in the base station of protection zone since air quality deteriorates; data processing centre runs air plllutant model by real time data; the occurring source of protection zone may be influenced by calculating monitored space; start the base station sampling being arranged near occurring source; the fingerprint map analyzing of gaseous sample is carried out using quick gas phase electronic nose to the sample of acquisition and compares fingerprint pattern technology similarity, is traced to the source according to similarity.This method and method are high with precision, analyze speed is fast, capture air sample in real time, and sample guarantee is provided for positioning of tracing to the source.

Description

On-line continuous atmosphere quality automatic monitor system and peculiar smell air source source tracing method

Technical field

The present invention relates to a kind of on-line continuous atmosphere quality automatic monitor systems, further relate to a kind of combination expansion Dissipate the air peculiar smell air source positioning traceability system and trace back using the system that fingerprint analysis compares after model setting samples automatically The method in source.

Background technology

For sake of convenience, as follows using title in this specification：

Peculiar smell：Give people the uncomfortable smell for feeling bad feeling；Stench：Serious stink, belongs to peculiar smell；The name is not distinguished strictly The usage of title.Peculiar smell/foul gas occurring source refers to the emission source of the release peculiar smell/foul gas such as some production units, landfill yard. Protection zone refers to residential block, dense population areas etc. and needs the region for protecting air quality, generally to leave corresponding monitoring Area influences whether protection zone once peculiar smell, foul gas discharge occur for monitored space；The industrial parks monitored space Zhi, landfill yard etc. There may be the regions for influencing protection zone air quality, belong to the region to be monitored in the present invention.It is had occurred in monitored space different Taste foul gas discharges, and the part of the discharge is known as emission source, also referred to as generating region or occurring source.Occurring source lays particular emphasis on nature hair Raw, emission source, which is laid particular emphasis on, actively to be discharged, and is all the peculiar smell or foul gas occurring source for influencing air quality from the angle of monitoring. Base station, the apparatus for the monitoring network being arranged in of the invention complete monitoring air peculiar smell, weather information, supply of electric power etc. Package unit, the chamber installation or a cabin that can be mounted on shelf, can leak informaton rain-proof.

Due to industrial discharge, environment getting worse is polluted, damages people's health.Environmental air pollution, gas with foreign flavor Discharge event, particularly foul gas discharge event occur often, and especially having in a region multiple may occur gas with foreign flavor Especially in the presence of foul gas emission source, it is often difficult to position specific stench occurring source/emission source using the prior art, gives Early warning, improvement, law enforcement bring difficulty.

In the prior art, on-line continuous atmosphere quality automatic monitor system is usually built in this way：Gridding setting prison Survey base station（Or the site in a network）, the monitoring data of monitoring base station are uploaded to server or referred to as Data processing The heart, data processing centre are distributed the site for determining that monitor value is high according to monitoring data, determine the approximate region of malodor source.

Monitoring base station is commonly provided with meteorology（Air pressure, temperature, humidity, wind direction, wind speed）And stench monitoring instrument.According to gas As and stench data and Network records historical data, to calculate the position of generation/emission source.

In such site, stench measurement is measured generally directed to stench marker, still

1）When stench occurs, i.e. people experiences that stench is either unpleasant or uncomfortable, and specific stench marker concentration is not It is certain high；2）Stench marker is measured, since the occurring source with identical marker is more, in this case, it is difficult to distinguish stench Source/stench occur point；3）Discharge after a period of time, only only has the read-record of sensor, does not have when discharge occurs There is air sample retention at that time, uncertainty equally is brought to positioning occurring source, it more difficult to be administered and be enforced the law according to this.

In recent years it, is used in combination using electronic nose or electronic nose and electrochemical sensor etc., for example, the present inventor's " is based on Characteristic contamination and electronic nose double mode air peculiar smell monitoring and warning system "（CN204667597U）In, by sensor assembly, gas As module, data transmission module and data processing centre form.Wherein in sensor assembly, select selective sensor to typical case Foul gas such as hydrogen sulfide（H2S and sulfhydryl compound, thiophenes）, hydrogen chloride（HCl）, amine gas（NH3 And amino-compound）And total volatile organism（TVOC）, and with electronic nose the gas with peculiar smell is monitored.Its In, electronic nose used such as France A Mosi（Alpha MOS, France）Metal oxide electron nose, wherein alternative Ground equipped with 3 or more, such as 16 for the different sensor of all kinds of gas sensitization degree, according to its response or have The collection of illustrative plates that response characteristic is formed determines the relationship for the stench felt with people, can preferably solve the feeling and sensor of people The relationship of measured value.

It according to the technical solution, is monitored and early warning, it is less and source point physics respectively occurs that source point occurs in gas with foreign flavor Distance dispersion, can also trace to the source.It is close in physical distance to occurring source complexity but since resolution ratio/precision is limited Collection, the electronic nose of the type are just difficult to differentiate between occurring source, difficulty are brought to tracing to the source.

Another electronic nose based on gas-chromatography, the interior chromatographic column different there are two types of polarity of machine, works as air sample After gas enters chromatography, due to polar difference, the retention time in two kinds of chromatographic columns is different respectively for the ingredient in air, shape At distinctive two width spectrogram（Also referred to as two-dimentional spectrogram, finger-print）, information process- is carried out to two width collection of illustrative plates, it can be to source Gas carries out fingerprinted characterization spectrum.Its representative products is the quick gas phase electronic nose such as HARACLE of French A Mosi, it can be fast Speed measures characterization gaseous sample, and qualitative analysis time is each gaseous sample longest 5 minutes, and tens thousand of kinds are also prefixed in instrument The two-dimentional finger-print of compound and the software for carrying out finger-print comparison can carry out various statisticals to finger-print Analysis, such as principal component analysis（PCA）, Assessing parameters analysis（DFA）, calculate the similarity between finger-print.Due to gas Ingredient detaches that retention time is all variant on a column, and retention time and the Abundances of record form collection of illustrative plates, as fingerprint into Row characterization, makes its resolution ratio greatly improve.

It applies visible Chinese patent application：" a method of differentiating liquor brand using quick gas phase electronic nose " (CN 104267134 A), " a kind of monitoring method of liquor grade " (102980948 A of CN), a kind of " " stable in red wine Taste " bad flavor substance assay method " (104007194 A of CN), " it is a kind of utilize fast gas chromatography type electronic nose The method that fingerprint analysis system differentiates age of Chinese rice wine " (102645502 A of CN) and the paper " ground based on Electronic Nose Technology The reason mark rice place of production is traced to the source research " (processing of farm products, 2014（12）, doi：10.3969/jissn.1671- 9646（X） .2014.12.041), " the electronic nose gas monitoring system based on gas-chromatography "（Technology and creative management, volume 2011 the 32nd the 6th Phase, 687-690）.Show that the quick gas phase electronic nose can be used to efficiently differentiate and these qualitative analysis objects.

The present inventor researchs and develops by prolonged application with keen determination, and carrying out upgrading to first peculiar smell monitoring and warning system changes It makes, discovery takes technological means coupling automatic sampling system and air plllutant model to calculate, in conjunction with quick gas phase electronic nose Technological means, can with real-time sampling, quickly it is fingerprinted compare, can accurately be traced to the source：When protection zone site, measured value reaches pre- If triggering automatic sample event when value, air quality distribution is calculated according to diffusion model, source region may be occurred by finding out in monitored space Domain site is sampled automatically, and the sample that automatic sampling obtains, which is carried out quick gas phase electronic nose, to be analyzed, and sample fingerprint is obtained, into Row fingerprint comparison determines stench source.When overcoming stench generation in the prior art, it is difficult to take air sample in time and divides Analysis is not in time and the not high enough defect of precision of tracing to the source so that process of tracing to the source is quick, accurately；The sample of indwelling can be also used for into One step analyzes and identifies.Set automatic sampling system can also meet an urgent need sampling analysis.

Invention content

The present invention provides a kind of emergent automatic sampling system of on-line continuous auto-monitor of surrounding air quality, it is further provided It is a kind of emergent automatic sampling is carried out according to Real-time Monitoring Data, the air peculiar smell of quick fingerprint comparison trace to the source monitoring network system and Its method traced to the source using the network system.

Present invention firstly provides a kind of emergent automatic sampling systems of on-line continuous auto-monitor of surrounding air quality

Automatic sampling module 1 is arranged to connect the data transmission module and 2 and be adopted according to the instruction of data transmission module 2 Sample acts；

Data transmission module 2 has multiple data exchange interfaces, is arranged to exchange data and instruction with external communication, Connection sensor assembly 3 receives 3 signal of sensor assembly, instructs automatic sampling module 1；

Sensor assembly 3, the module include the sensor group for having response to air smell component, are arranged to and data Transmission module 2 connects, and data transmission module 2 reads 3 data of sensor assembly.（Fig. 1）

The second, the present invention provides a kind of on-line continuous auto-monitor of surrounding air quality base station 20, comprises the following modules：

Data transmission module 2 has multiple data exchange interfaces, is arranged to exchange data and instruction with external communication, Connection sensor assembly 3 receives 3 signal of sensor assembly, and connection weather monitoring module 4 receives 4 information of weather monitoring module, Instruct automatic sampling module 1；

Sensor assembly 3, the module include the sensor group for having response to air smell component, are arranged to and data Transmission module 2 connects, and data transmission module 2 reads 3 data of sensor assembly；

Weather monitoring module 4 is arranged to monitor the base station region part weather information.（Fig. 2）

Third, the present invention further provide it is a kind of according to Real-time Monitoring Data carry out automatically sampling, quick fingerprint comparison On-line continuous auto-monitor of surrounding air quality network system, by data processing centre 5, the gridding of face source be arranged it is above-mentioned On-line continuous auto-monitor of surrounding air quality base station 20 form.（Fig. 3）

Unquestionably, the component of electric power is needed to be required for configuration electric power in whole device, electric power supply system can basis The prior art is configured, and can be alternating current, can also be battery, and work(is stored especially in conjunction with solar energy, wind energy and electric energy The self-supporting power system of energy preferably, can also will be equipped with alternating current and the combination of self-contained unit is powered.In the first Shen of the present inventor Please（CN204667597U）In be discussed in detail.

The sensor assembly 3 for having response to air smell component can select the electronics of the sensitive air peculiar smell of energy Nose, specific foul gas such as hydrogen sulfide（H₂S）, ammonia（NH₃）Deng, total volatile organism（TVOC）Deng the object of pollution air The one or several kinds of the sensor of matter are composed, can according to the actual conditions of discharge gas, select sensitive sensor for It is good.The module generally provides signal condition and data output interface, convenient to carry out data exchange with other equipment, is set by other It is standby to read data.

Output result in order to reach sensor assembly can be directly consistent with the feeling peculiar smell degree of people, to sensing Device, the especially sensor with preferable signal condition processing function, electronic nose can manually be smelt and distinguish assignment.Such as Peculiar smell malodorous grades assignment can be carried out according to such as under type to French A Mosi oxidation physical property electronic noses RQBOX so that output Data are exactly into manually smelling the malodorous grades value for distinguishing domestication excessively：

Set automatic sampling condition, automatic collection scene air sample；

It to the air sample of acquisition, is measured and is recorded with electronic nose, allowed smell the person's of debating use site and smell and distinguish that instrument is smelt and distinguish and provide stench Grade point distinguishes that the malodorous grades value provided is assigned to the corresponding measured value of electronic nose smelling（One group of respective value）；

By the fitting software of the respective value electron nose of acquisition, the regression parameter of electronic nose response is obtained；

Regression parameter is applied to electronic nose response model, electronic nose directly exports malodorous grades numerical value when measurement.

Certainly, accurate regression parameter in order to obtain, needs sample size at least six acquired or more, and sample Concentration respectively can overlay measurement range, usual artificial stochastical sampling, it is difficult to collect the sample that sample concentration is evenly distributed Group.Therefore, using automatic sampling system, so that it may which the measured value sensor especially electronic nose is arranged carries out when reaching certain value Sampling, such as stench value, setting 1,2,4,6,10,20,40,60,80 is equivalent, carries out systematic sampling, is passed to tame Sensor especially electronic nose.

The automatic sampling module 1, mainly by sampling container, air pump, motor-driven valve, baroceptor and control system group At sampling container therein generally has sampling air bag and sampling gas cylinder.When using air bag, pump may be used and connect with air bag, Air sample is pumped directly into when sampling.In order to avoid the influence of gas remaining in air bag, preferably using passive sampling, that is, it is arranged Air bag is in a container（Air bag accommodating cavity）It is interior, it is arranged between air bag and air bag accommodating cavity after air bag accommodating cavity vacuumizes, Negative pressure state is generated between air bag and air bag accommodating cavity.Or directly use gas sampling bottle, such as Soviet Union agate tank, with control valve and Air pump cooperation vacuumizes for use.When being connected to sampling instruction, control system opens sampling valve so that air is due to sampling container Negative pressure and automatically into sampling container.Certainly, air bag accommodating cavity can be vacuumized not in advance, when being connected to sampling instruction, then Booster air pump vacuumizes.

Specifically, automatic sampling module 1 is configured to：

The sampling container 12 being placed in chamber resettling 11, chamber resettling 11 pass through the first control valve 13 and 14 pipeline of aspiration pump Connection, 11 pipeline of chamber resettling are connected with pressure sensor 15, and sampling container 12 is empty by 16 pipeline of the second control valve and environment Gas connects；15 signal of pressure sensor is connected to controller 17, controller 17 connect the first control valve 13, the second control valve 16, Aspiration pump 14, the sampling container 12 are sampler bag（Fig. 4）

When normality is in standby, the first control valve 13 is closed with the second control valve 16.

It when operation, can carry out in two ways, by 11 forvacuum of chamber resettling, i.e., the first is：

When pressure sensor 15, which perceives 11 vacuum degree of chamber resettling, to be declined, controller 17 opens air pump 14 and opens first Control valve 13 is vacuumized, and the vacuum degree of chamber resettling 11 is kept；When receiving sampling instruction, controller 17 opens second Control valve 16, surrounding air enters sampler bag；When sampling finishes, controller 17 closes the second control valve 16, and setting has sampled Finish state to data transmission module 2.

Alternatively, pressing the second way, i.e. 11 not forvacuum of chamber resettling vacuumizes, i.e., when being connected to sampling instruction：

When receiving sampling instruction, controller 17 opens air pump 14 and the first control valve 13 carries out vacuumizing chamber resettling 11, open the second control valve 16, surrounding air enters sampler bag；When sampling finishes, second control valve 16 of the closing of controller 17, Air pump 14 and the first control valve 13, send out sampling to data transmission module 2 and finish signal.

The second way and first way, effect is identical, and can also avoid under long-time vacuum state micro lets out Leakage mixes.

Alternatively, it is also possible to be sampled using sampling Soviet Union agate tank 121, sampling Soviet Union agate tank 121 typically vacuumizes shape in advance State, it can save the pumpdown time in this way, at this moment, automatic sampling module 1 is：

The sampling Soviet Union agate tank 121 of forvacuum, is connect by pipeline with pressure sensor 15, by pipeline by the first control Valve 13 processed is connect with air pump 14, is connect with surrounding air by control valve 16；15 signal of pressure sensor is connected to controller 17, Controller 17 connects the first control valve 13, the second control valve 16, aspiration pump 14（Fig. 5）；

Carrying out practically mode is：When pressure sensor 15, which perceives 121 vacuum degree of sampling Soviet Union agate tank, to be declined, controller 17 is opened It opens air pump 14 and the first control valve 13 is vacuumized, keep the vacuum degree of sampling Soviet Union agate tank 121；It is instructed when receiving sampling When, controller 17 opens the second control valve 16, and surrounding air enters sampling Soviet Union agate tank 121；When sampling finishes, controller 17 closes The second control valve 16 is closed, setting sampling finishes state to data transmission module 2.

For convenience, the connection of sampler bag and gas circuit is used and is detachably connected.Can generally the connector not leaked be kept i.e. It can.

The sample storage device of automatic sampler can configure 1 or 1 or more, and configuration 1 or more preferably, can work as and adopt Sample time interval in short-term, continuously can be sampled uninterruptedly.

The automatic sampling module 1 can be arranged in parallel 2 to 4, being parallel-connected to data by controller 17 passes In defeated module 2（Fig. 6）；

The automatic sampling module 1 can also be configured 2 to 4, be set as sharing the air pump in automatic sampling module 1 14 connect the first control valve 13, second control in air pump 14 and each automatic sampler module with controller 17,17 signal of controller Valve 16 processed, pressure sensor 15, air pump 14 are connect with the control valve 13 in each automatic sampling module.（Fig. 7,8））That is, Pump 14 and controller 17 removal in sampler 1 is shared, remaining part 10, which is arranged, multiple is parallel to air pump 14 and controller On 17, it is conducive to the saving in space, the miniaturization of equipment in this way.

Its ingredient of the gaseous sample usually acquired is easily varied, and difficulty is brought to accurate measurements.Therefore, gas sample is acquired The container of product needs the container such as E-switch boards foil laminated film gas using absorption, the variation for avoiding gas sample constituents Sampler bag（2L）And ENTECH companies Su Ma tanks, the inner wall of such sampler bag or Soviet Union's agate tank have all carried out specially treated, have made The long period can be preserved without changing by obtaining air sample；On the other hand, sample needs instant analysis, avoids preserving for a long time, this Fast analyser is just needed, therefore, quick gas phase electronic nose is to select well.Especially when under test gas sample size is more When, advantage is with regard to apparent.

The data transmission module 2 is connected with sensor assembly 3, automatic sampling module 1, meteorological module 4, and passes through Network is connect with data processing centre 5.

The data transmission module 2, according to preset format and time interval, by base station monitors data, including sensing Device data are uploaded to data processing centre, while according to following three kinds of situations, send out automatic sampling to automatic sampling module 1 and refer to It enables, and the event is uploaded to data processing centre：

1) when sensing data reaches setting value；Or

2) when sensing data exceeds apparatus quality control critical value（SQC）When；Or

3) when receiving the sampling instruction that data processing centre sends out.

The format that the preset format uses when referring to data transmission, there is professional standard or national standard or international standard , its standard may be used, can also typically be packaged transmission by the way of any convenience and saving, quickly transmitting, it is described Time interval, can be determined according to the demands such as precision that tracking or analysis need, tens seconds can be sampled between a few minutes Every practical, such as 30 seconds to 2 minutes.

Described when sensor reaches setting value, setting value therein could be provided as 1 value, also sectional setting Multiple setting values are used for the data of monitoring sensor, are sampled.

When sensing data controls critical Value Data beyond sensor mass（SQC）When, because to have recorded instrument normal by SQC Fluctuation range when operation indicates exception when reading is beyond normal fluctuation range, if reading indicates that air peculiar smell is dense Degree exceeds the upper limit, it may be possible to which air peculiar smell occurs；If reading is abnormal low, it may be possible to which instrument and equipment is out of order.

The subsection setup, such as the first sample event is triggered when beyond the SQC upper limits, it is triggered in higher setting value Second sample event and third event.Can several setting values be set previously according to needs and sampler bag quantity.It both can be pre- It is set if can also be instructed according to data processing centre.

It is described when receiving the sampling instruction that data processing centre sends out, i.e., data processing centre can send out as needed Go out instruction to be sampled；Especially when encountering accident emergency condition, specific base station can be neatly instructed to be sampled Indwelling.

The connection of data transmission module 2 and data processing centre 5（Fig. 3, Fig. 9）, can be that wired or wireless network connects It connects, GPRS modes may be used, 3G, 4G mode connect, data, transmission are exchanged with data processing centre and receives instruction.Data Transmission module 2 transmits the data of monitoring base station to data processing centre.

In the region that needs monitor（Hereinafter referred to as monitored space）With possible affected area（Hereinafter referred to as protection zone）Carry out gridding Site base station is set, is connected with data processing centre by the data transmission module 2 of each base station, co-operating forms monitoring net Network system.

The face source gridding setting base station refers in monitored space to possible occurring source（Emission source）To divide or wrap Multiple monitoring base stations are arranged in the mode enclosed, and at least one monitoring base station is arranged in protection zone.It can be set according to the size of protection zone Set multiple monitoring base station covering protections area.（Figure 10）

The protection zone refers to needing to protect the region of its air quality, generally residential block or populated area, Once air quality deterioration has occurred in the protection zone, such as peculiar smell, stench allow people to feel uncomfortable, at this time, it may be necessary to trace The source of these peculiar smell, foul gas --- trace to the source.

The monitoring of the prior art, once the air peculiar smell of protection zone, stench event has occurred, according to the site of monitoring area Although have recorded with concentration dependent sensing data, these sensing datas are a kind of common sensations of people's smell, no Peculiar smell, the gas componant of stench and which part of monitored space in energy distinguishing protection area（Site）Gas componant it is similar, it is difficult to It traces to the source.

The data processing centre 5, includes database module, gas phase diffusion model module, and calculation process instructs mould Block；Database module record therein includes each base station monitors data including each automatic sampling system information, air quality sensing Device module data, meteorological data, each base station geographic position data, and record have the landform comprising monitored space and protection region Data；Terrain data has had commercial free terrain data edible, and the terrain data in the present invention has air plllutant mould It is used in diffusion model that the included terrain data import tool of type, which imports common terrain data,；Data processing centre connects in real time Receive data of the record from each site base station data transmission module 2.Diffusion model press intervals, according to meteorological data, Sensing data, each base station geographic position data, terrain data calculate air gas with foreign flavor concentration distribution, and according to setting, hair Give display terminal.Certain time interval can be determined by calculation amount and demand, be arrived usually by several minutes such as 2 minutes 10 minutes time intervals calculate, you can obtain the continuous transformation distribution map of practical precision.Occur in automatic collection sample event When, it can be with instant computing.

According to the above on-line continuous auto-monitor of surrounding air quality network system with automatic sampling apparatus, in conjunction with fast The analysis fingerprint comparison of fast gas phase electron nose, the present invention provide a kind of air peculiar smell occurring source based on retention indices and trace to the source Method.

This method, which is realized in, traces to the source：

When network aware air quality is abnormal when protection zone, automatic sample event is triggered（Protection zone gaseous sample）, And sample event information is uploaded to data processing centre 5；

Data processing centre 5 calculates according to meteorological data, sensing data, each base station geographic position data, terrain data Air gas with foreign flavor concentration distribution is calculated accordingly on protection zone there may be the generation source range a of influence, to source range occurs A Intranet point base stations send out automatic sampling instruction；It sends out and carries out quick gas phase electronic nose analysis task instruction；（Figure 10）

Quick gas phase electronic nose completes the fingerprint analysis characterization of sample；

Quick gas phase electronic nose fingerprint comparison software is by each sample fingerprint of the sample finger-print of protection zone and monitored space Collection of illustrative plates is compared, and calculates the similarity of monitored space each sample and protection zone sample；

According to similarity, determines and source position occurs.

The diffusion profile of the calculating, may contribution of the occurring source site to protection zone peculiar smell, stench wherein containing Spend tentative data, on protection zone have certain contribution degree be there may be the generation source range a of influence.

The similarity of finger-print, which compares, to be completed in the comparison software that quick gas phase electronic nose carries, and software can incite somebody to action The finger-print of monitoring is compared, and provides similar degrees of data.

Assuming that the base station occurred in source range there are 3, carries out automatic sampling and obtained finger-print A, B, C, protection zone The finger-print of sample is D, then can compare A, B, C with D respectively, the size that similarity is discharged is come.Similarity is bigger, that More determining is the occurring source for influencing protection zone, completes to trace to the source.

Wherein so-called fingerprint comparison, detailed principle and its visible equipment of operation illustrate that guide, finger-print compare other side Method can be Principal Component Analysis PCA or Assessing parameters analysis（DFA）, the similarity of definition can be provided.

The on-line continuous auto-monitor of surrounding air quality base station of the present invention constitutes a site of monitoring network of the present invention, It can be layouted in one network according to actual conditions, preferably layout into grid, in this way due to the rule layouted, to number It offers convenience according to operation etc., for effective monitoring and possible emission source of tracing to the source, has when to monitor one and may be discharged to air When the occurring source of peculiar smell or foul gas, due to obstacles such as geographical location, buildings, it is difficult to it layouts in its generation point by grid, Also uneconomical, typically around it（It surrounds）, adjacent possible occurring source boundary（Segmentation）Or cloth is carried out in certain intervals Point setting.

Each base station samples trigger condition and can be set as needed automatically.When general operation, it is arranged in the base station of monitored space Automatic sampling triggering when being traditionally arranged to be the instruction for receiving data processing centre 5, be arranged in the automatic of the base station of protection zone It is more than certain threshold value that sampling triggering, which is traditionally arranged to be sensor reading,.

Quick gas phase electronic nose used in the present invention, can be arranged directly on site, be arranged with automatic sampling system Online mode together is connect with sampling container by air valve, when obtain sampling complete analyzed when, start instrument, when When instrument enters analysis state, opens air valve importing sampling and analyzed into quick gas phase electronic nose, obtain sample fingerprint image Spectrum uploads data processing centre；Off-line test mode can also be taken, is referred to when receiving data processing centre's progress fingerprint analysis After order, sample is collected, the fingerprint chromatogram characterization that quick gas phase electronic nose fingerprint analysis obtains each sample is carried out, uploads number According to processing center.In view of the price and operating cost of quick gas phase electronic nose, the online and offline side being combined can be used Formula；Vehicle-mounted mobile mode can also be used in offline mode, more can shorten analysis time.

The gas phase swift electron nose, has there is supply in the market, what French A Mosi was produced, has there is several models Supply, fast compact, such as HARACLE.Its principle is the intranasal chromatographic column different there are two types of polarity of gas phase swift electron, when After air sample gas enters chromatography, due to polar difference, the retention time in two kinds of chromatographic columns is different, remembers by monitoring Retention time and Abundances are recorded, and distinctive two width spectrogram is formed after information standardization processing, which is referred to as fingerprint Collection of illustrative plates.The gas of separate sources, the different gas of ingredient, finger-print is different, accordingly, can carry out fingerprint comparison.It is so-called Finger-print can use right-angle coordinate representation, can also show as star when polar coordinate mode indicates with polar coordinate representation Cloud atlas.One is typically tested two emission sources, such as factory A in Figure 11（Solid line）With factory B（Dotted line）Fingerprint Collection of illustrative plates, which compares, finds there is apparent difference, the retention time on two root chromatogram columns and abundance difference.

Test multiple occurring sources（Emission source）, a typical case for statistical analysis, of the invention, for occurring source 3 Family's factory testing, after principal component analysis, it can be seen that this method can significantly distinguish 3（AG、AB、AM）The characteristic of emission source. （Figure 12）

Air plllutant model therein has had based on various hypothesis and theoretical model, and basic principle is main basis Terrain data, the air pressure of air, temperature, humidity, wind speed, wind direction calculate the spatial and temporal distributions of certain substance in an atmosphere.It is more smart Thin model carries compound database, and record has compound to decay under meteorological condition, the information such as sedimentation.Such diffusion mould Type, can common document report, also there is business to provide, for example, France Plum ' AIR Dispersion modelling softwares, this Software is based on Lagrangian model, according to the meteorology of upload（Wind speed, wind direction, humidity, air pressure, temperature, rainfall, solar radiation）, Air source position and intensity and geographic factor, simulate the spread condition of different chemical gas and stench, provide distribution, and indicate For distribution map, is calculated by intervals and be distributed and be superimposed to form dispersion ability distribution map.According to the calculating, gas can be predicted Carry out the contribution degree of source range and coverage and each pollution source point for neighboring area.

In the present invention, when protection zone, automatic sample event occurs, according to meteorological data, sensing data, each base station Geographic position data, terrain data calculate air gas with foreign flavor concentration distribution, according to preset value, calculate possible involved area Range and possible occurring source regional extent（Figure 10）.

Data processing centre sends out automatic sampling instruction according to the range data to the site in range.

For the small Polluted area in big region, which can carry out that grid is layouted or enclosed is layouted, Ke Yiyong Same system and method, compare out equivalent data（Air quality peculiar smell time of origin, peculiar smell value, peculiar smell fingerprint）, use is such Effect data represent zonule pollution face source, can be as a point of Local Area Network more significantly（Equivalent site）, in this way can be with Increase the expansivity of network, the specific aim layouted achievees the effect that emphasis monitoring takes into account cost savings.

Further, when collecting the sample of each possible emission source, so that it may with directly the sample fingerprint of protection zone It is compared with it, provides similarity, be directly traceable to possible emission source.

Alternatively, on the basis of above-mentioned tracing comparison, it is carried out at the same time the fingerprint of protection zone sample finger-print and occurring source Collection of illustrative plates compares.

If directly compared with the finger-print of occurring source, wherein the occurring source for being had similarity high, it can be direct It obtains and traces to the source as a result, if not reaching the high comparison result of similarity, the finger-print of possible original occurring source is become Change, such as change production technology, formula, product etc. so that discharge gas composition is changed, at this point, still should be with prison It is preferential to survey base station finger-print comparison result.

The possibility emission source of monitored space（Also referred to as occurring source）Sample finger-print, can have several ways acquisition：

The first is directly to acquire air sample in its floss hole, and quick gas phase electronic nose analyzes its finger-print, stores The heart is for future reference in data handling；

Second is that, when that cannot directly obtain the sample of emission source, can trace to the source when generation protection zone samples automatically The base station arrived can be specific to occurring source, accumulated history data can according to meteorological data at that time, especially wind direction and wind speed To obtain the emission source sample fingerprint in monitored space；

The third is the base station sets automatic collection sample threshold value being directly arranged in emission source, different near the base station Taste concentration acquires sample when high, analyze finger-print, accumulated according to meteorological data, can obtain the emission source near the base station Sample finger-print.

By above method, accumulation data are carried out, the fingerprint databases of monitored space emission source can be built up.Certainly, this refers to Line spectrum library also can time to time change, using the present invention automatic sampling system can track update monitored space emission source finger Line spectrum library, it is for future reference to be directly traceable to emission source.

In conclusion it is of the invention, on the basis of existing on-line continuous auto-monitor of surrounding air quality network system, Be provided with automatic sampling system in base station, the heart has coupled air plllutant model in data handling, can in real time simulation monitoring area with The air peculiar smell concentration distribution of protection zone generates once severe air quality problems, that is, serious peculiar smell stench occurs to protection zone When influence, timely automated acquisition sample, data processing centre instructs possible generation in monitored space according to the estimation of diffusion model The base station in source samples automatically, by quick gas phase（Chromatography）Quick fingerprinted analysis, the comparison of electronic nose, can be accurately determined Occurring source is traced to the source.It has the technical effect that apparent.Network simultaneously has recorded data, indwelling air sample, can be used for subsequently point Analysis needs.

Description of the drawings

Fig. 1 on-line continuous auto-monitor of surrounding air quality automatic sampling system schematic diagram, by automatic sampling module 1, Data transmission module 2 and sensor assembly 3 form.

Fig. 2 on-line continuous auto-monitor of surrounding air quality base station constitutes schematic diagram, and gas is increased in the system of Fig. 1 As module 4.

Fig. 3 on-line continuous auto-monitor of surrounding air quality base station is connected to long-range data processing centre 5, Ke Yijiao It changes data, receive instruction schematic diagram.

Fig. 4 on-line continuous auto-monitor of surrounding air quality automatic sampling system schematic diagram, automatic sampling mould therein The composition of block 1, sample-holding container are sampler bag.

Fig. 5 on-line continuous auto-monitor of surrounding air quality automatic sampling system schematic diagram, automatic sampling mould therein The composition of block, sample-holding container are Soviet Union's agate tank.

Fig. 6 on-line continuous auto-monitor of surrounding air quality automatic sampling system schematic diagram has multiple units that keep sample The composition of 10 automatic sampling module.

Fig. 7 on-line continuous auto-monitor of surrounding air quality automatic sampling system schematic diagram has multiple units that keep sample The composition of 10 automatic sampling module, sample-holding container are sampler bag.

Fig. 8 on-line continuous auto-monitor of surrounding air quality automatic sampling system schematic diagram has multiple units that keep sample Automatic sampling module composition, sample-holding container be Soviet Union agate tank.

Fig. 9 multiple on-line continuous auto-monitor of surrounding air quality base station 20 and the connection composition of data processing centre 5 are supervised Survey network diagram.

Figure 10 on-line continuous auto-monitor of surrounding air quality network arrangements and sample event trigger schematic diagram, therein Contour indicates to be distributed by the real-time concentration that diffusion model calculates.The expression concentration of contour more inner ring is higher.Monitoring area 200, protection zone 300.When protection zone triggers sample event, in monitored space, the range a more than a certain concentration is that possible send out Source of students region.201 be that be arranged in the base station of monitored space 20,202 be occurring source, and 301 be to be arranged in the base station 20 of protection zone.

The quick gas phase electronic noses of Figure 11 analyze two and source gas analysis finger-print alignment similarity occur（A factories： Solid line；B factories：Dotted line）Schematic diagram.

The finger-print that Figure 12 analyzes swift electron nose three occurring sources carries out main composition（PLA）The two dimension obtained afterwards It identifies collection of illustrative plates schematic diagram, can understand from figure and distinguish three factories（AG、AB、AM）Feature.

Specific implementation mode

Carry out more specific the present invention will be described in detail content below by way of specific system configuration and step of tracing to the source, does not constitute to this The limitation of invention, the displacement modification and the expansion of present system that those skilled in the art carries out according to the present invention are answered It is in the scope of the present invention with method.

The configuration of automatic sampling module：

The sampling container 12 being placed in forvacuum chamber resettling 11, forvacuum vessel room 11 pass through the first control valve 13 It is connect with 14 pipeline of aspiration pump, 11 pipeline of forvacuum vessel room is connected with pressure sensor 15, and sampling container 12 passes through second 16 pipeline of control valve is connect with surrounding air；15 signal of pressure sensor is connected to controller 17, first control of the connection of controller 17 Valve 13 processed, the second control valve 16, aspiration pump 14；When pressure sensor 15, which perceives vacuum degree, to be declined, controller 17 opens air pump It 14 and opens the first control valve 13 and is vacuumized, keep the vacuum degree of forvacuum gas chamber；When receiving sampling instruction, control Device 17 processed opens the second control valve 16, and surrounding air enters sampler bag；When sampling finishes, controller 17 closes the second control valve 16, setting sampling finishes state to data transmission module 2（Fig. 2）.

When normality is in standby, the first control valve 13 is closed with the second control valve 16.Controller 17 is according to pressure It when 15 signal of force snesor perceives vacuum degree decline, sends out and starts aspiration pump 14, open the first control valve 13, improve forvacuum The vacuum degree of chamber resettling 11 sends out when 5 signal of pressure sensor perception vacuum degree reaches predetermined value and closes the first control valve 13, stop the signal of aspiration pump 14；When controller 17 receives the automatic sampled signal from data transmission module 2, send out The second control valve 16 is opened, surrounding air enters sampling container 12, sends out close 16 signal of the second control valve later, is passed to data Defeated module 2 sends out sampling and finishes signal.

When using sampling Soviet Union agate tank 121, the sampling Soviet Union agate tank 121 of forvacuum passes through pipeline and pressure sensor 15 connects It connects, is connect with air pump 14 by the first control valve 13 by pipeline, connect with surrounding air by control valve 16；Pressure sensor 15 signals are connected to controller 17, and controller 17 connects the first control valve 13, the second control valve 16, aspiration pump 14；When pressure passes When sensor 15 perceives vacuum degree decline, controller 17 opens air pump 14 and opens the first control valve 13 and vacuumized, and keeps adopting The vacuum degree of sample Soviet Union agate tank 121；When receiving sampling instruction, controller 17 opens the second control valve 16, and surrounding air enters Sampling Soviet Union agate tank 121；When sampling finishes, controller 17 closes the second control valve 16, and setting sampling finishes state and passed to data Defeated module 2（Fig. 4）.

When pressure sensor 15 perceive vacuum degree decline when, controller 17 open air pump 14 and open the first control valve 13 into Row vacuumizes, and keeps the vacuum degree of forvacuum gas chamber；When receiving sampling instruction, controller 17 opens the second control valve 16, surrounding air enters sampler bag；When sampling finishes, controller 17 closes the second control valve 16, and setting sampling finishes state To data transmission module 2.

As needed, sampling unit can be arranged 1 or 1 or more, general to be arranged 1-4 preferably, practical for 1-3 It is a to repeat to be arranged sampling unit in parallel in automatic sampling module 1 (Fig. 5, Fig. 7).

Specific component is configured to

Sampler bag 12：Foil composite membrane gas sampling bag, E-switch boards, 2L；

Vacuum chamber resettling is self-control, and the retractable chamber vacuumized of sampler bag can be placed according to sampler bag specification, The pipeline for being provided with the interface being connect with pipeline for sampler bag and being connect with pump and pressure sensor.

Control valve 13, control valve 16：SMC type vacuum solenoids VT307,24VDC, Ya De visitor

Pressure sensor 15：Micro electric minor vacuum pressure switch, Taiwan KITA, KP102-R6

Controller 17：SIEMENS PLC, S7-200

On-line continuous atmosphere quality automatic monitor system：

It is made of multiple monitoring base stations 20 and data processing centre 5；

The monitoring base station of system is constituted：

It is provided with sensor assembly 3, weather monitoring module 4, automatic sampling module 1 and data in each monitoring base station 20 Transmission module 2；

Sensor assembly 3 is mainly made of electric nasus system, and electric nasus system is using ALPHA M.O.S companies of France RQ BOX are mainly made of gas sensor array, Signal Pretreatment and simulation pretreatment and pattern-recognition three parts.The electronics Nose to the monitoring of one or more odoring substances by simulating the olfactory system of the mankind.It debates instrument by smelling the person of debating and smelling and is intended Domestication is closed, it can direct delivery air peculiar smell level read.

Weather monitoring module 4 is using Germany LUFFT WS600 integral types weather station（ http:// www.instrument.com.cn/netshow/SH101632/C123396.htm）, aerial temperature and humidity, air pressure, wind can be measured Fast wind direction and precipitation guide line.Relative humidity of atomsphere is measured by capacitance type sensor；Using one accurately NTC modules measure it is big Temperature degree；It is measured wind speed and direction using ultrasonic wave principle；Each drop rain/snow is measured using the Doppler radar of 24GHz to drip Dropleting speed, to calculate the precipitation guide lines such as precipitation intensity, type of precipitation and precipitation.All index integrations are passed at one It is non-maintaining in sensor.

Monitoring data are transmitted to data transmission module 2 by sensor assembly 3 with weather monitoring module 4 through RS485, and data pass The packing of defeated module 2 is uploaded to data processing centre 5.

For data transmission module 2 using 16 high-precision modules, every group of data were carried out for a unit with 30 seconds Scene storage, and a data of uploading onto the server for every 1 minute.Data transmission will be in the data of acquisition using the 3G communication technologys The server of data center is reached, and receives instruction from data processing centre 5, base station equipment is operated, carries out live number According to analysis.3G technology refers to the cellular mobile telecommunications technology for supporting high speed data transfer.3G services can transmit simultaneously sound and Data information, rate is generally in hundreds of kbps or more.

Data transmission module 2 controls automatic sampling module 1 according to Three models and is sampled.1. pre-setting threshold value, such as 3 values of fruit sensor assembly exceed threshold value；2. 3 the data obtained of sensor assembly is analyzed via SQC statistical qualities, if Data then send sampled signal not in normal range (NR)；3. after receiving the sampled signal that data center 5 is sent out, to automatic Sampling module 1 sends sampled signal.

After the completion of gridding monitoring system layout, all data are transmitted to data processing centre 5, Data processing via 3G All data are stored, analyzed and issued by the heart 5, and provide response opinion according to analysis result.

Data processing centre 5 is by obtained monitoring data, using diffusion model software, simulating pollution gas and stench Spread condition.When polluting generation, by the possible source of the anti-pollution of tracing back of diffusion model software and the contribution degree of each point, and pass through The automatic sampling module 1 of the pollution sources that transmission sampled signal to the distance of data center 5 is extrapolated recently is sampled.

Diffusion model software is based on glug using France's Plum ' AIR Dispersion modelling softwares, the software Bright day model, according to the meteorology of upload（Wind speed, wind direction, humidity, air pressure, temperature, rainfall, solar radiation）, air source position with it is strong Degree and geographic factor, simulate the spread condition of different chemical gas and stench, provide distribution, and be expressed as distribution map, press Intervals, which calculate, to be distributed and is superimposed to form dispersion ability distribution map.

1 samples taken of automatic sampling module, is analyzed using quick gas phase electronic nose, with the monolithic chromatogram figure of each sample For respective stench fingerprint, according to principal component analysis（PCA）It is analyzed with Assessing parameters（DFA）Compare each pollution sources sample and periphery The similarity of the stench fingerprint in region, to carry out Source Tracing, such as Figure 11.

It is fast can to carry out toxic and harmful gas using the HERACLE of ALPHA M.O.S companies of France for quick gas phase electronic nose Volatility, semi-volatile organic matter monitoring, pollution in volatility, semi-volatile organic matter monitoring, soil in fast emergency monitoring, water Object discharge, the judgement monitoring of pollution sources, Work places safety monitoring and analysis, stench monitoring and analysis.

1）The powerful electronic nose using simplicity has unique multi-functional characteristic

2）The double FID monitors of two parallel opposed polarity metal capillary chromatography column twin columns

3）Built-in cold-trap-can pre-concentration/desorption

It can get：

1）Smell explosion views and the relevant characteristic description-electronic nose function of sense organ

2）The separation, identification and quantitative-fast chromatographic analyzer function of compound are carried out according to gas-chromatography principle.

The quick analysis of resolution ratio is not lost

1. high-speed temperature programmed：Up to 600 DEG C/min；

2. analytical cycle is short：5 min

It is highly sensitive

Semiconductor refrigerating adsorption trap：Pre-concentration desorption analysis can be achieved, increase the sensitivity (pg) of high volatile sample

Good reproducibility

1. retention time RSD<0.3%；

2. peak area RSD<3%

Software powerful friendly interface ＆

（One）Easy unique function

1. multivariate statistics software package：Easy data analysis

More than 2. kinds of spectrum elucidation tool：Product entirety flavor compares

（Two）Individuation data handling implement

1. qualitative model：Comparison between product quality, the place of production, supplier, batch

2. Quality Control model：Homogeneity of product is analyzed

3. quantitative model：The prediction of flavor/stench intensity, compound concentration

（Three）Good reproducibility

1. retention time RSD<0.3%

2. peak area RSD<3%

Arochembase：Kovats retention index data bank

1. including the compound identification of organoleptic attribute；

2. being grouped by application field or compound characteristics；

3. more than 230 000 entries, 44 000 kinds of compounds；

4. including NIST databases；

Spec characteristic

（One）Sample introduction pattern ＆ sampling methods

1. liquid ＆ headspace samplings pattern (SPME/SPDE/ITEX)；

2. manual ＆ automatic samplings；

3. internal pump can be chosen, by direct sample in sampler bag or air, built-in adsorption trap, temperature regulating range (0- 260℃ )

（Two）Chromatographic column ＆ furnace temperature

1.2 metal capillary columns (10m -0.18mm)；

2. carrier gas：Hydrogen or helium

3. operation temperature： 35℃ - 300℃

4. high-speed heating rate：Reachable 600 DEG C/min, 10 DEG C/s

（Three）The double flame ions of monitor

1. monitor (FID), software controls automatic FID igniting；

2. operation temperature：Up to 300 DEG C

3.FID sensitivity：10-9 to 10-12 A/mV；

The 4.FID ranges of linearity> 108

5. monitoring frequency：100Hz

（Four）Characteristic

Start in 1.15 min；

2. retention time RSD<0.3%, peak area RSD< 3%；

3. monitoring limit nC12< 100 pg；

4. analytical cycle：5 min；

（Five）It safeguards

1. software overall monitor（FID lights a fire, pressure, flow set, temperature program setting）

2. daily maintenance（Sample introduction pad is replaced）

（Six）Essential characteristic

1. dimensions：230 x 320 x 440mm (LxHxP)

2. weight：16 kg

3. voltage：100 / 115 / 230 VAC

4. computer connects：USB

5. operating condition：0 DEG C -30 DEG C of temperature, humidity 0-90%

6. storage condition：-20℃ - 60℃

（Seven）Software

1. perfect data processing software：Chromatogram, fingerprint image（Radar map, Quality Control figure, principal component analysis figure, differentiate because Sub- analysis chart, soft Independent modeling analysis chart）；

2. multilingual interface：Chinese, English, French is Spanish, German, Japanese, Korean.

Claims

1. a kind of air peculiar smell source tracing method based on on-line continuous auto-monitor of surrounding air quality network system, feature For：

When the automatic sample event of protection zone at least one site base station triggers, protection zone gaseous sample is acquired, and sample event is believed Breath is uploaded to data processing centre（5）Afterwards；

Data processing centre（5）It is calculated according to meteorological data, sensing data, each base station geographic position data, terrain data empty Gas gas with foreign flavor concentration distribution is calculated accordingly on protection zone there may be the generation source range of influence, to occurring in source range Monitoring base station（20）Send out automatic sampling instruction；It sends out and carries out quick gas phase electronic nose analysis task instruction；

Quick gas phase electronic nose completes the fingerprint analysis characterization of sample；Quick gas phase electronic nose fingerprint comparison software will be protected The sample finger-print in area is compared with each sample finger-print of monitored space, calculates monitored space each sample and protection zone sample The similarity of product；According to similarity, determines and source position occurs；

The on-line continuous auto-monitor of surrounding air quality network system, by data processing centre（5）, the gridding of face source sets The multiple on-line continuous auto-monitor of surrounding air quality base station set（20）Composition, wherein face source gridding is set as supervising Control, which is distinguished, cuts or surrounds the multiple monitoring base stations of occurring source setting（20）And at least one monitoring base station is set in protection zone（20）Structure At network, the monitoring base station（20）Pass through the data transmission module of monitoring base station（2）Data processing centre described in network connection （5）, on-line continuous auto-monitor of surrounding air quality base station（20）It comprises the following modules：

Automatic sampling module（1）, there is sampling container, be arranged to connect the data transmission module（2）And according to data transmission mould Block（2）Instruction carries out sampling action, and the sampling action is that surrounding air is allowed to enter sampling container storage；

Data transmission module（2）, there are multiple data exchange interfaces, be arranged to exchange data and instruction with external communication, even Connect sensor assembly（3）, receive sensor assembly（3）Signal connects weather monitoring module（4）, receive weather monitoring module（4） Information instructs automatic sampling module（1）；

Sensor assembly（3）, which includes the sensor group for having response to air smell component, is arranged to pass with data Defeated module（2）Connection, data transmission module（2）Read sensor assembly（3）Data；

Weather monitoring module（4）, it is arranged to monitor the base station region part weather information；

The data processing centre（5）Including server, it is equipped in server：

Database module, it includes each monitoring base station to be arranged to record（20）It is the sensing data that sends, meteorological data, automatic Sampling module data, record have terrain data, each base station geographic position data；

Air plllutant model module, by intervals, according to meteorological data, sensing data, each base station geographic position number Air gas with foreign flavor concentration distribution is calculated according to, terrain data；

Operational order module, including according to base station data, air gas with foreign flavor concentration distribution, instruction base station samples automatically.

2. a kind of air peculiar smell side of tracing to the source of on-line continuous auto-monitor of surrounding air quality network system according to claim 1 Method, wherein being set in quick gas phase electronic nose, there are two types of the different gas chromatographic columns of polarity；The finger-print be gaseous sample into After entering the quick gas phase electronic nose, the two kinds of chromatograms provided, the fingerprint comparison includes carrying out principal component to gas fingerprint Analysis, Assessing parameters analysis, provide the fingerprint similarity of protection zone base station gaseous sample and the gaseous sample of monitored space base station, into Row Source Tracing.

3. a kind of air of any on-line continuous auto-monitor of surrounding air quality network system according to claims 1 or 2 is different Taste source tracing method, when there are the finger-print of monitored space air peculiar smell occurring source, also simultaneously protection zone base station sample fingerprint Spectrogram is compared with occurring source finger-print, provides fingerprint similarity.

4. a kind of air peculiar smell side of tracing to the source of on-line continuous auto-monitor of surrounding air quality network system according to claim 3 Method, the air peculiar smell occurring source fingerprint, by directly in the acquisition of air peculiar smell occurring source sampling analysis, monitoring analysis data Accumulation obtains.

5. a kind of air peculiar smell according to claim 1 based on on-line continuous auto-monitor of surrounding air quality network system traces back Source method, wherein automatic sampling module（1）For：

It is placed in chamber resettling（11）Interior sampling container（12）, chamber resettling（11）Pass through the first control valve（13）With aspiration pump （14）Pipeline connects, chamber resettling（11）Pipeline is connected with pressure sensor（15）, sampling container（12）Pass through the second control valve （16）Pipeline JA(junction ambient) air；Pressure sensor（15）Signal is connected to controller（17）, controller（17）The first control of connection Valve processed（13）, the second control valve（16）, aspiration pump（14）, the sampling container（12）For sampler bag；

It runs as follows：

Work as pressure sensor（15）Perceive chamber resettling（11）Vacuum degree decline when, controller（17）Open air pump（14）With One control valve（13）It is vacuumized, keeps chamber resettling（11）Vacuum degree；When receiving sampling instruction, controller（17） Open the second control valve（16）, surrounding air enters sampler bag；When sampling finishes, controller（17）Close the second control valve （16）, sampling is set and finishes state to data transmission module（2）；

Or it runs as follows：

When receiving sampling instruction, controller（17）Open air pump（14）With the first control valve（13）It carries out vacuumizing accommodating cavity Room（11）, open the second control valve（16）, surrounding air enter sampler bag；When sampling finishes, controller（17）Close second Control valve（16）, air pump（14）With the first control valve（13）, sampling is set and finishes state to data transmission module（2）；

Alternatively, wherein automatic sampling module（1）For：

The sampling container is sampling Soviet Union agate tank, the sampling Soviet Union agate tank of forvacuum（121）, pass through pipeline and pressure sensor （15）Connection passes through the first control valve by pipeline（13）With air pump（14）Connection, by control valve（16）Connect with surrounding air It connects；Pressure sensor（15）Signal is connected to controller（17）, controller（17）Connect the first control valve（13）, the second control valve （16）, aspiration pump（14）；

It runs as follows：

Work as pressure sensor（15）Perception Soviet Union agate tank（121）When vacuum degree declines, controller（17）Open air pump（14）With it is open-minded First control valve（13）It is vacuumized, keeps sampling Soviet Union agate tank（121）Vacuum degree；When receiving sampling instruction, control Device（17）Open the second control valve（16）, surrounding air, which enters, samples Soviet Union's agate tank（121）；When sampling finishes, controller（17） Close the second control valve（16）, sampling is set and finishes state to data transmission module（2）.

6. a kind of air peculiar smell according to claim 1 based on on-line continuous auto-monitor of surrounding air quality network system traces back Source method, wherein sensor assembly（3）Selected from including for monitoring the TVOC sensors of TVOC concentration, for monitoring H₂S concentration H₂Sensor and for monitoring NH₃The NH of concentration₃Sensor, electronic nose for monitoring air peculiar smell it is one or more Combination.

7. a kind of air peculiar smell according to claim 1 based on on-line continuous auto-monitor of surrounding air quality network system traces back Source method, weather monitoring module therein（4）Sensor including monitoring air themperature, humidity, air pressure, wind speed, wind direction forms, It is arranged to monitoring base station region part meteorological data.