CN205449908U - Online ambient air quality automatic monitoring basic station and network system in succession - Google Patents
Online ambient air quality automatic monitoring basic station and network system in succession Download PDFInfo
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- CN205449908U CN205449908U CN201521102826.5U CN201521102826U CN205449908U CN 205449908 U CN205449908 U CN 205449908U CN 201521102826 U CN201521102826 U CN 201521102826U CN 205449908 U CN205449908 U CN 205449908U
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Abstract
The utility model discloses the basic station of online ambient air quality automatic monitoring basic station in succession and a plurality of source net settings again and the automatic monitoring network system of data processing center constitution. Automation that the basic station is connected by the data transmission module is sampled module, sensor module and meteorology monitoring module and is constituteed, the monitoring network system's that says data processing center install the database, the nature data, meteorological diffusion model. The sample event in the basic station of protection zone in case take place because the air quality worsens for this system configuration, and data processing center press the meteorological diffusion model of real -time data operation, calculates the emergence source that the control district probably influences the protection zone, starts the basic station sampling that sets up in near emergence source, carries out the fingerprint assay of gaseous sample and compare the technological similarity of fingerprint the quick gaseous phase electronics nose of sample utilization of collection, traces to the source according to the similarity. This system has precision height, analysis speed and picks sky gas sample article soon, in real time, and the location provides the sample guarantee in order to trace to the source.
Description
Technical field
This utility model relates to a kind of on-line continuous atmosphere quality automatic monitor system, the air abnormal flavour source of the gas location traceability system further relating to fingerprint analysis comparison after a kind of combination diffusion model arranges sampling automatically and the method utilizing this system to carry out tracing to the source.
Background technology
For sake of convenience, this specification uses title as follows:
Abnormal flavour: to people uncomfortable feel bad sensation abnormal smells from the patient；Stench: serious stink, belongs to abnormal flavour；The most strictly distinguish the usage of this title.Abnormal flavour/foul gas occurring source refers to the emission source of release abnormal flavour/foul gas such as some production unit, landfill yards etc..Protection zone refers to that residential block, dense population areas etc. need the region protecting air quality, typically leaves corresponding monitored space, and once monitored space generation abnormal flavour, foul gas discharge, influence whether protection zone；Monitored space Zhi industrial park, landfill yard etc. may produce affects the region of protection zone air quality, belongs to region to be monitored in this utility model.There occurs in monitored space that abnormal flavour foul gas discharges, the local of this discharge is referred to as emission source, also referred to as generating region or occurring source.Occurring source lays particular emphasis on naturally-occurring, and emission source lays particular emphasis on actively discharge, from the angle of monitoring, is all abnormal flavour or the foul gas occurring source affecting air quality.Base station, the apparatus of monitoring network arranged in this utility model, complete to monitor air abnormal flavour, weather information, the package unit of supply of electric power etc., the chamber installation can being mounted on shelf or a cabin, can leak informaton rainproof.
Due to industrial discharge, pollute environment day by day serious, the health of infringement people.Environmental air pollution, the discharge event of gas with foreign flavor, particularly foul gas discharge event occurs often, have especially multiple it may happen that in the presence of gas with foreign flavor particularly foul gas emission source in a region, utilize prior art to be often difficult to position concrete stench occurring source/emission source, to early warning, administer, enforce the law and bring difficulty.
In prior art, the most so build on-line continuous atmosphere quality automatic monitor system: gridding arranges monitoring base station (or the site in a network), the Monitoring Data of monitoring base station is uploaded to server or referred to as data processing centre, data processing centre determines, according to Monitoring Data distribution, the site that monitor value is high, determines 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 meteorological and stench data and the historical data of Network records, calculate the position of generation/emission source.
In such site, stench mensuration is generally directed to stench mark and measures, but
1) when there is stench, i.e. people experiences stench or unpleasant or uncomfortable, and its specific stench marker concentration is the highest；2) stench mark is measured, many owing to having the occurring source of identical mark, in this case, it is difficult to distinguish the source/stench generation point of stench；3) discharge is through after a period of time, only only has the read-record of sensor when discharge occurs, and air sample was retained the most at that time, equally location occurring source is brought uncertainty, it more difficult to administer according to this and enforce the law.
In recent years, Electronic Nose or Electronic Nose is used to be used in combination with electrochemical sensor etc., such as, in " feature based pollutant and Electronic Nose double mode air abnormal flavour monitoring and warning system " (CN204667597U) of the present inventor, it is made up of with data processing centre sensor assembly, meteorological module, data transmission module.Wherein in sensor assembly, select selective sensor to representative malodor 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 by Electronic Nose, the gas with abnormal flavour is monitored.Wherein, Electronic Nose used such as France A Mosi (AlphaMOS, France) metal oxide electron nose, the most optionally equipped with 3 or more, such as 16 for the different sensor of all kinds of gas sensitization degree, determine the relation of the stench felt with people according to its response value or the collection of illustrative plates that has response characteristic to be formed, can preferably solve the sensation of people and the relation of measurement value sensor.
According to this technical scheme, it is monitored and early warning, and respectively generation source point physical distance dispersion less at gas with foreign flavor generation source point, it is also possible to trace to the source.But, due to resolution/limited precision, complicated to occurring source, intensive in physical distance, the Electronic Nose of the type is just difficult to differentiate between occurring source, and giving traces to the source brings difficulty.
Another Electronic Nose based on gas chromatogram, the chromatographic column that two kinds of polarity is different is had in machine, after air sample gas enters chromatograph, difference due to polarity, composition in the air retention time in two kinds of chromatographic columns respectively is different, form distinctive two width spectrograms (being also called for short two dimension spectrogram, finger printing), two width collection of illustrative plates are carried out information process-, source gas can be carried out fingerprinted sign and compose.Its representative products is the quick gas phase Electronic Nose such as HARACLE of France A Mosi, it can quickly measure sign gaseous sample, analysis time is that each gaseous sample is the longest 5 minutes qualitatively, also it is prefixed the two-dimentional finger printing of tens thousand of kinds of compounds in instrument and carries out the software of finger printing comparison, finger printing can be carried out various statistical analysis, such as principal component analysis (PCA), Assessing parameters analysis (DFA), calculate the similarity between finger printing.Separating retention time on a column due to gas componant the most variant, the retention time of record forms collection of illustrative plates with Abundances, characterizes as fingerprint so that it is resolution is greatly improved.
nullThe visible Chinese patent application of its application: " a kind of method utilizing quick gas phase Electronic Nose to differentiate liquor brand " (CN104267134A)," monitoring method of a kind of liquor grade " (CN102980948A)," a kind of assay method of " stable taste " bad flavor material in red wine " (CN104007194A)," a kind of method utilizing fast gas chromatography type Electronic Nose fingerprint analysis system to differentiate age of Chinese rice wine " (CN102645502A)，And paper " the geographical sign rice place of production based on Electronic Nose Technology trace to the source research " (processing of farm products，2014(12)，Doi:10.3969/jissn.1671-9646 (X) .2014.12.041)，" Electronic Nose gas monitoring system based on gas chromatogram " (technology and creative management，The 6th phases of volume 2011 the 32nd，687-690).Show that this quick gas phase Electronic Nose available efficiently differentiates and analyze object with qualitative these.
The present inventor, research and develop through prolonged application with keen determination, abnormal flavour monitoring and warning system formerly is carried out upgrading, discovery takes technological means to couple automatic sampling system, and air plllutant model calculates, technological means in conjunction with quick gas phase Electronic Nose, can be with real-time sampling, quick fingerprinted comparison, can accurately trace to the source: trigger automatic sample event when site, protection zone measured value reaches preset value, air quality distribution is calculated according to diffusion model, find out in monitored space it may happen that sample automatically in source region site, by automatically sampling, the sample obtained carries out quick gas phase Electronic Nose analysis, obtain sample fingerprint, carry out fingerprint comparison, determine that stench is originated.Overcome stench in prior art when occurring, be difficult to take in time air sample and analyze 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 further Analysis and Identification.Set automatic sampling system can also be met an urgent need sampling analysis.
Summary of the invention
This utility model provides a kind of on-line continuous auto-monitor of surrounding air quality to meet an urgent need automatic sampling system, it is further provided a kind of method carrying out emergent sampling automatically according to Real-time Monitoring Data, the air abnormal flavour of quick fingerprint comparison traces to the source monitoring network system and using this network system to carry out tracing to the source.
First this utility model provides a kind of on-line continuous auto-monitor of surrounding air quality to meet an urgent need automatic sampling system
Automatically sampling module 1, is arranged to connect the data transmission module 2 and carry out sampling action according to data transmission module 2 instruction；Data transmission module 2, has multiple data exchange interface, is arranged to and external communication exchange data and instruction, connects sensor assembly 3, accepts sensor assembly 3 signal, instruct automatic sampling module 1；
Sensor assembly 3, this module includes the sensor group having response to air smell component, is arranged to be connected with data transmission module 2, and data transmission module 2 reads sensor assembly 3 data.(Fig. 1)
The second, this utility model provides a kind of on-line continuous auto-monitor of surrounding air quality base station 20, including with lower module:
Automatically sampling module 1, is arranged to connect the data transmission module 2 and carry out sampling action according to data transmission module 2 instruction；Data transmission module 2, there is multiple data exchange interface, be arranged to and external communication exchange data and instruction, connect sensor assembly 3, accept sensor assembly 3 signal, connect weather monitoring module 4, accept weather monitoring module 4 information, instruct automatic sampling module 1；
Sensor assembly 3, this module includes the sensor group having response to air smell component, is arranged to be connected with data transmission module 2, and data transmission module 2 reads sensor assembly 3 data；
Weather monitoring module 4, is arranged to monitor this local, region, base station weather information.(Fig. 2)
3rd, this utility model further provide a kind of automatically sample according to Real-time Monitoring Data, the on-line continuous auto-monitor of surrounding air quality network system of quick fingerprint comparison, data processing centre 5, the gridding of source, face the above-mentioned on-line continuous auto-monitor of surrounding air quality base station 20 arranged forms.(Fig. 3)
Certainly, the parts needing electric power in whole device are required for configuring electric power, electric power supply system can configure according to prior art, it can be civil power, it can also be battery, especially in conjunction with solar energy, wind energy, and the self-supporting power system of electrical power storage function is preferably, it is also possible to power being equipped with the civil power combination with self-contained unit.The earlier application (CN204667597U) of the present inventor is discussed in detail.
The described sensor assembly 3 having response to air smell component, can select can the sensitive Electronic Nose of air abnormal flavour, specific foul gas such as hydrogen sulfide (H2S), ammonia (NH3) etc., the sensor of the air-polluting material such as total volatile organism (TVOC) one or several combine, sensitive sensor can be selected preferably according to the practical situation of discharge gas.This module generally provides signal condition and data output interface, and convenient and other equipment carry out data exchange, read data by other equipment.
Can be directly consistent with the sensation abnormal flavour degree of people in order to reach the output result of sensor assembly, to sensor, particularly there is preferable signal condition and process the sensor of function, Electronic Nose, can manually smell and distinguish assignment.Such as France's A Mosi oxidation physical property Electronic Nose RQBOX can be carried out abnormal flavour malodorous grades assignment according to following manner so that output data are exactly into the most manually smelling the malodorous grades value distinguishing domestication:
Set automatic sampling condition, automatic collection site air sample；
To the air sample gathered, measure record by Electronic Nose, allow and smell the person of debating and use scene to smell to distinguish that instrument is smelt and distinguish and provide malodorous grades value, distinguish that the malodorous grades value provided is assigned to measured value corresponding to Electronic Nose (one group of respective value) smelling；
By the respective value of acquisition to the fitting software of Electronic Nose, it is thus achieved that the regression parameter of Electronic Nose response；
Regression parameter is applied to Electronic Nose response model, and during mensuration, Electronic Nose directly exports malodorous grades numerical value.
Certainly, in order to obtain accurate regression parameter, the sample size that needs gather more than at least 6, and the scope of the concentration of sample energy overlay measurement respectively, the most manually stochastical sampling, it is difficult to collect the sample sets that sample concentration is evenly distributed.Therefore, use automatic sampling system, it is possible to the measured value arranging sensor particularly Electronic Nose reaches to sample during certain value, such as, for stench value, set 1,2,4,6,10,20,40,60,80 is equivalent, carries out systematic sampling, in order to tame sensor particularly Electronic Nose.
Described automatic sampling module 1, is mainly made up of sampling container, air pump, electrodynamic valve, baroceptor and control system, and sampling container therein typically has sampling air bag and sampling gas cylinder.When using air bag, pump can be used to be connected with air bag, during sampling, be pumped directly into air sample.In order to avoid the impact of the gas of remaining in air bag, use passive sampling preferably, air bag is i.e. set in a container (air bag containing cavity), is arranged between air bag and air bag containing cavity when, after air bag containing cavity evacuation, producing negative pressure state between air bag and air bag containing cavity.Or directly use gas sampling bottle, such as Soviet Union's agate tank, coordinates evacuation stand-by with control valve and air pump.When receive sampling instruction time, control system opens sampling valve so that air due to sampling container negative pressure and automatically into sampling container.Certainly, air bag containing cavity can refuse evacuation in advance, when receiving sampling instruction, restarts air pump evacuation.
Specifically, automatic sampling module 1 is configured to:
The sampling container 12 being placed in chamber resettling 11, chamber resettling 11 is connected with air pump 14 pipeline by the first control valve 13, and chamber resettling 11 pipeline connects pressure transducer 15, and sampling container 12 is connected with surrounding air by the second control valve 16 pipeline；Pressure transducer 15 signal is connected to controller 17, and controller 17 connects first control valve the 13, second control valve 16, air pump 14.(Fig. 4)
When normality is in standby, the first control valve 13 is closed with the second control valve 16.
During operation, can carry out in two ways, the first is by chamber resettling 11 forvacuum, it may be assumed that
When pressure transducer 15 perception chamber resettling 11 vacuum declines, controller 17 is opened air pump 14 and opens the first control valve 13 and carry out evacuation, keeps the vacuum of chamber resettling 11；When receiving sampling instruction, the second control valve 16 opened by controller 17, and surrounding air enters sampler bag；When sampling complete, controller 17 cuts out the second control valve 16, arranges the complete state of sampling to data transmission module 2.
Or, by the second way, i.e. chamber resettling 11 not forvacuum, evacuation when receiving sampling instruction, it may be assumed that
When receiving sampling instruction, air pump (14) opened by controller (17) and the first control valve (13) carries out evacuation chamber resettling (11), opens the second control valve (16), surrounding air entrance sampler bag；When sampling complete, controller (17) cuts out the second control valve (16), air pump (14) and the first control valve (13), sends the complete signal of sampling to data transmission module 2.
The second way and first kind of way, effect is identical, it is also possible to avoid the leakage of the trace under long-time vacuum state to mix.
Alternatively, it is also possible to use sampling container 12 to sample for Soviet Union's agate tank, Soviet Union's agate tank evacuation state the most in advance, so can save the pumpdown time, at this moment, automatic sampling module 1 is:
The sampling container 12 of forvacuum, is connected with air pump 14 through the first control valve 13 by pipeline, is connected with pressure transducer 15 through pipeline, be connected with surrounding air through control valve 16；Pressure transducer 15 signal is connected to controller 17, and controller 17 connects first control valve the 13, second control valve 16, air pump 14 (Fig. 5)；
Carrying out practically mode is: when pressure transducer 15 perception sampling container 12 vacuum declines, and air pump 14 opened by controller 17 and the first control valve 13 carries out evacuation, keeps the vacuum of sampling container 12；When receiving sampling instruction, the second control valve 16 opened by controller 17, and surrounding air enters sampling container 12；When sampling complete, controller 17 cuts out the second control valve 16, arranges the complete state of sampling to data transmission module 2.
For convenience, sampler bag and gas circuit be connected by removably connect.The general connector that can keep not leaking.
The sample storage device of automatic sampler can configure more than 1 or 1, configures more than 1 and can work as sampling time interval in short-term preferably, can the most uninterruptedly sample.
Described automatic sampling module 1 can be arranged in parallel 2 to 4, be parallel-connected to (Fig. 6) on data transmission module 2 by controller 17；
Described automatic sampling module 1 can also be configured 2 to 4, it is set to air pump 14 and the controller 17 sharing in automatic sampling module 1, controller 17 signal connects first control valve the 13, second control valve 16 in air pump 14 and each automatic sampler module, pressure transducer 15, and air pump 14 is connected with the control valve 13 in each automatic sampling module.(Fig. 7,8)) it is to say, the pump 14 in sampler 1 is removed shared with controller 17, remaining part 10 arrange multiple be parallel to air pump 14 with on controller 17, the so beneficially saving in space, the miniaturization of equipment.
Its composition of gaseous sample generally gathered is easily varied, and brings difficulty to accurate measurements.Therefore, its container gathering gaseous sample needs to use avoids the absorption of gas sample constituents, the container such as E-switch board foil laminated film gas sampling bag (2L) of change and ENTECH company Su Ma tank, the inwall of such sampler bag or Soviet Union's agate tank has all carried out special handling so that air sample can preserve the long period and not change；On the other hand, sample needs instant analysis, it is to avoid preserve for a long time, and this is accomplished by fast analyser, and therefore, quick gas phase Electronic Nose is well to select.Especially when gaseous sample quantity to be measured is more, its advantage is the most obvious.
Described data transmission module 2, connects and has sensor assembly 3, automatic sampling module 1, meteorological module 4, and is connected with data processing centre 5 by network.
Described data transmission module 2, according to default form and time interval, by base station monitors data, it is uploaded to data processing centre including sensing data, simultaneously according to following three kinds of situations, send, to automatic sampling module 1, instruction of automatically sampling, and this event be uploaded to data processing centre:
1) when sensing data arrives setting value；Or
2) when sensing data is beyond apparatus quality control marginal value (SQC)；Or
3) when receiving the sampling instruction that data processing centre sends.
Described default form refers to the form used when data are transmitted, there are industry standard or national standard or international standard, its standard can be used, any convenience and saving, the mode of quickly transmission can also be used, it is typically transmission of packing, described time interval, can determine according to demands such as tracking or the precision analyzing needs, can sample tens seconds is spaced practical to a few minutes, such as 30 seconds to 2 minutes.
Described when sensor arrives setting value, setting value therein, could be arranged to 1 value, it is possible to the multiple setting value of subsection setup, for the data of monitoring sensor, sample.
When sensing data controls marginal value data (SQC) beyond sensor mass, because SQC have recorded instrument properly functioning time fluctuation range, when reading is beyond normal fluctuation range, indicate exception, if reading represents that air abnormal flavour concentration is beyond the upper limit, it may be possible to air abnormal flavour occurs；If reading is abnormal low, it may be possible to instrument and equipment is out of order.
Described subsection setup, such as, trigger the first sample event when beyond the SQC upper limit, triggers the second sample event, and the 3rd event when higher setting value.Several setting value can be set previously according to needs and sampler bag quantity.Both can preset, it is also possible to set according to data processing centre's instruction.
Described when receiving the sampling instruction that data processing centre sends, i.e. data processing centre can send instruction as required and samples；Especially when running into accident emergency condition, specific base station can be instructed neatly and carry out indwelling of sampling.
Data transmission module 2 and the connection (Fig. 3, Fig. 9) of data processing centre 5, can be that wired or wireless network connects, can connect to use GPRS mode, 3G, 4G mode, exchange data with data processing centre, send and accept instruction.The data of monitoring base station are transmitted to data processing centre by data transmission module 2.
Carry out gridding in the region (hereinafter referred to as monitored space) and possible affected area (hereinafter referred to as protection zone) needing monitoring base station, site is set; it is connected with data processing centre by the data transmission module 2 of each base station; co-operating, forms monitoring network system.
Described source, face gridding arranges base station, refers at monitored space it may happen that source (emission source) arranges multiple monitoring base station in the way of segmentation or encirclement, arranges at least 1 monitoring base station in protection zone.Size according to protection zone can arrange multiple monitoring base station covering protection district.(Figure 10)
Described protection zone, refers to need to protect the region of its air quality, generally residential block or populated area; once this protection zone there occurs that air quality deteriorates; such as abnormal flavour, stench allow people feel uncomfortable, at this time, it may be necessary to review the source of these abnormal flavour, foul gas---i.e. trace to the source.
The monitoring of prior art; once there occurs the air abnormal flavour of protection zone, stench event; although the site according to monitoring region have recorded and concentration dependent sensing data; but; these sensing datas are the common sensations of a kind of people's olfactory sensation; the gas componant of which part (site) that cannot distinguish between gas componant and the monitored space of the abnormal flavour of protection zone, stench is similar, it is difficult to trace to the source.
Described data processing centre 5, includes DBM, gas phase diffusion model module, calculation process instruction module；DBM record therein includes each base station monitors data, includes each automatic sampling system information, air mass sensor module data, meteorological data, each base station geographic position data, and record has and comprises monitored space and the terrain data in region, protection zone；Terrain data has had the free terrain data of commercialization edible, and it is used by diffusion model that the terrain data import tool that the terrain data in this utility model has air plllutant model to carry imports public terrain data；Data processing centre, real-time reception record is from the data of each site base station data transport module 2.Intervals pressed by diffusion model, calculates the distribution of air gas with foreign flavor concentration according to meteorological data, sensing data, each base station geographic position data, terrain data, and according to setting, is sent to display terminal.Certain time interval, can be determined by amount of calculation and demand, usually calculates by the several minutes time interval of such as 2 minutes to 10 minutes, i.e. can get the continuous transformation scattergram of practical precision.When automatically gathering sample event and occurring, can be with instant computing.
According to having the on-line continuous auto-monitor of surrounding air quality network system of automatic sampling apparatus above, in conjunction with the analysis fingerprint comparison of quick gas phase Electronic Nose, this utility model provides a kind of air abnormal flavour occurring source source tracing method based on retention indices.
The method is realized in tracing to the source:
When protection zone network aware air quality occurs abnormal, trigger automatic sample event (protection zone gaseous sample), and sample event information is uploaded to data processing centre 5；
Data processing centre 5; the distribution of air gas with foreign flavor concentration is calculated according to meteorological data, sensing data, each base station geographic position data, terrain data; calculate occurring source scope a that protection zone may be produced impact accordingly, occurring source scope a Intranet point base stations is sent instruction of automatically sampling；Send and carry out the instruction of quick gas phase Electronic Nose analysis task；(Figure 10)
Quickly gas phase Electronic Nose completes the fingerprint analysis sign of sample；
Quickly each sample finger printing of the sample finger printing of protection zone with monitored space is compared by gas phase Electronic Nose fingerprint comparison software, calculates the similarity of monitored space each sample and protection zone sample；
According to similarity, determine occurring source position.
The diffusion profile of described calculating, wherein contains it may happen that site, source is to protection zone abnormal flavour, the contribution degree tentative data of stench, and have certain contribution degree to protection zone is occurring source scope a that possible produce impact.
The similarity comparison of finger printing is to complete in the comparison software that quick gas phase Electronic Nose carries, and the finger printing of monitoring can be compared by software, provides similarity data.
Assuming that the base station in the range of occurring source has 3, carried out automatic sampling and obtained finger printing A, B, C, the finger printing of the sample of protection zone is D, then can by A, B, C respectively with D comparison, discharge similarity size come.Similarity is the biggest, then more determine the occurring source being to affect protection zone, completes to trace to the source.
The wherein explanation guide of so-called fingerprint comparison, detailed principle and operation its equipment visible, finger printing comparison method can be PCA PCA or Assessing parameters analysis (DFA), can provide the similarity of definition.
On-line continuous auto-monitor of surrounding air quality base station of the present utility model constitutes a site of this utility model monitoring network, can layout according to practical situation in one network, preferably layout into grid, so due to the rule layouted, offer convenience to data operation etc., for effective monitoring and possible emission source of tracing to the source, when to monitor one and may have the occurring source of abnormal flavour or foul gas to airborne release, due to geographical position, the obstacles such as building, it is difficult to occur point to layout by grid at it, the most uneconomical, it is typically (surrounding) about, adjacent it may happen that the boundary (segmentation) in source or carry out setting of layouting in certain intervals.
Each base station trigger condition of automatically sampling can set as required.When typically running, the sampling automatically of the base station being arranged on monitored space triggers when being traditionally arranged to be the instruction receiving data processing centre 5, and the triggering of sampling automatically of the base station being arranged on protection zone is traditionally arranged to be sensor reading and exceedes certain threshold value.
Quick gas phase Electronic Nose used in this utility model, can be arranged directly on site, the online mode being set together with automatic sampling system, it is connected by air valve with sampling container, when obtaining sampling and completing to be analyzed, starts instrument, when instrument enters analysis state, open the air valve importing sampling quick gas phase Electronic Nose of entrance to be analyzed, obtain sample finger printing, upload data processing centre；Off-line test mode can also be taked, when receiving after data processing centre carries out fingerprint analysis instruction, sample is collected, carry out quick gas phase Electronic Nose fingerprint analysis and obtain the fingerprint chromatogram of each sample and characterize, upload data processing centre.In view of price and the operating cost of quick gas phase Electronic Nose, online and that off-line combines mode can be used；Offline mode may be used without vehicle-mounted mobile mode, more can shorten analysis time.
Described gas phase swift electron nose, market has had supply, and France A Mosi is produced, and has had several model supply, fast compact, such as HARACLE.Its principle is, gas phase swift electron intranasal has the chromatographic column that two kinds of polarity is different, after air sample gas enters chromatograph, difference due to polarity, retention time in two kinds of chromatographic columns is different, through monitoring record retention time and Abundances, and forming distinctive two width spectrograms after information standardization process, this two width collection of illustrative plates is referred to as finger printing.The gas of separate sources, the gas that composition is different, its finger printing is different, accordingly, can carry out fingerprint comparison.So-called finger printing, can use right-angle coordinate representation, it is also possible to polar coordinate representation, when polar coordinate mode represents, show as nebula figure.Typically testing for two emission sources for one, as in Figure 11, the finger printing comparison of factory A (solid line) and factory B (dotted line) is found to have significantly difference, the retention time on two root chromatogram columns is different with abundance.
Test multiple occurring source (emission source), carry out statistical analysis, a typical case of the present utility model, for 3 factory testings of occurring source, after principal component analysis, it can be seen that the method can distinguish the characteristic of 3 (AG, AB, AM) emission sources significantly.(Figure 12)
Air plllutant model therein, has had based on various hypothesis and theoretical model, and ultimate principle is, main base area graphic data, the air pressure of air, temperature, humidity, wind speed, wind direction, calculates certain material spatial and temporal distributions in an atmosphere.The information such as finer model has compound to decay under meteorological condition with compound database, record, sedimentation.Such diffusion model, can report by common document, also business is had to provide, such as, France's Plum ' AIRDispersionmodelling software, this software is based on Lagrangian model, according to the meteorology (wind speed, wind direction, humidity, air pressure, temperature, rainfall, solar radiation) uploaded, source of the gas position and intensity and geographic factor, simulation different chemical gas and the spread condition of stench, provide distribution, and be expressed as scattergram, calculate distribution by intervals and superposition forms dispersion ability scattergram.According to this calculating, measurable gas carrys out source range and coverage and each pollution source point contribution degree for neighboring area.
In this utility model; when the automatic sample event in protection zone occurs; calculating the distribution of air gas with foreign flavor concentration according to meteorological data, sensing data, each base station geographic position data, terrain data, according to preset value, calculating may involved area scope and it may happen that source region scope (Figure 10).
Data processing centre according to this range data give in the range of site send instruction of automatically sampling.
For the little Polluted area in big region, this zonule can carry out grid and layout or enclosed is layouted, same system and method can be used, comparison goes out equivalent data (air quality abnormal flavour time of origin, abnormal flavour value, abnormal flavour fingerprint), this equivalent data is used to represent this source, pollution face, zonule, can be as Local Area Network more significantly a point (equivalence site), so can increase the expansivity of network, the specific aim layouted, reaches emphasis monitoring and takes into account the effect of cost savings.
Further, when collecting the sample of each possible emission source, it is possible to directly the sample fingerprint of protection zone and its comparison, provide similarity, be directly traceable to possible emission source.
Or, on the basis of above-mentioned tracing comparison, carry out the finger printing comparison of protection zone sample finger printing and occurring source simultaneously.
If the direct and finger printing comparison of occurring source, wherein there is the occurring source that similarity is high, result of tracing to the source can be immediately arrived at, if not reaching the comparison result that similarity is high, the finger printing of occurring source that may be original there occurs change, such as, change production technology, formula, and product etc. makes to discharge gas ingredients and there occurs change, now, still should be preferential with monitoring base station finger printing comparison result.
The sample finger printing of the possible emission source (also referred to as occurring source) of monitored space, can have several ways to obtain:
The first is directly to gather air sample at its floss hole, and quick gas phase Electronic Nose is analyzed its finger printing, is stored in data processing centre for future reference；
The second is, when the sample of emission source can not be directly obtained, and can be when occurring protection zone automatically to sample; the base station being traceable to, according to meteorological data at that time, particularly wind direction and wind speed; occurring source, accumulated history data can be specific to, can be monitored the emission source sample fingerprint in district；
The third is, the base station sets directly arranged at emission source gathers sample threshold value automatically, gathers sample, analyze finger printing, accumulate according to meteorological data during abnormal flavour concentration height near this base station, can obtain the sample finger printing of emission source near this base station.
By above method, carry out accumulating data, the fingerprint databases of monitored space emission source can be built up.Certainly, this fingerprint databases also can time to time change, utilize automatic sampling system of the present utility model can follow the tracks of update monitored space emission source fingerprint databases, for future reference for being directly traceable to emission source.
In sum, this utility model, on the basis of existing on-line continuous auto-monitor of surrounding air quality network system, it is provided with automatic sampling system in base station, the heart has coupled air plllutant model in data handling, energy real-time Simulation monitored space is distributed with the air abnormal flavour concentration of protection zone, the impact on protection zone is produced once there is severe air quality problems the most serious abnormal flavour stench, timely automated collection sample, data processing centre is according to the estimation of diffusion model, sample automatically in the base station of occurring source possible in instruction monitored space, quick fingerprinted analysis by quick gas phase (chromatograph) Electronic Nose, comparison, occurring source can be accurately determined i.e. trace to the source.Have the technical effect that significantly.Network have recorded data, indwelling air sample simultaneously, can be used for subsequent analysis needs.
Accompanying drawing explanation
Fig. 1 on-line continuous auto-monitor of surrounding air quality automatic sampling system schematic diagram, is made up of automatic sampling module 1, data transmission module 2 and sensor assembly 3.
Fig. 2 on-line continuous auto-monitor of surrounding air quality base station constitutes schematic diagram, adds meteorological module 4 in the system of Fig. 1.
Fig. 3 on-line continuous auto-monitor of surrounding air quality base station is connected to long-range data processing centre 5, can exchange data, accept instruction schematic diagram.
Fig. 4 on-line continuous auto-monitor of surrounding air quality automatic sampling system schematic diagram, the composition of automatic sampling module 1 therein, sample-holding container is sampler bag.
Fig. 5 on-line continuous auto-monitor of surrounding air quality automatic sampling system schematic diagram, the composition of automatic sampling module therein, sample-holding container is Soviet Union's agate tank.
Fig. 6 on-line continuous auto-monitor of surrounding air quality automatic sampling system schematic diagram, has the composition of the automatic sampling module of multiple unit 10 that keeps sample.
Fig. 7 on-line continuous auto-monitor of surrounding air quality automatic sampling system schematic diagram, have multiple unit 10 that keeps sample the composition of automatic sampling module, sample-holding container is sampler bag.
Fig. 8 on-line continuous auto-monitor of surrounding air quality automatic sampling system schematic diagram, have multiple unit that keeps sample the composition of automatic sampling module, sample-holding container is Soviet Union's agate tank.
Fig. 9 multiple on-line continuous auto-monitor of surrounding air quality base station 20 forms monitoring network diagram with the connection of data processing centre 5.
Figure 10 on-line continuous auto-monitor of surrounding air quality network arrangement and sample event trigger schematic diagram, and equal pitch contour therein represents the real-time concentration distribution calculated by diffusion model.The indicated concentration of equal pitch contour more inner ring is the highest.Monitoring region 200, protection zone 300.When protection zone triggers sample event, in monitored space, scope a more than finite concentration is it may happen that source region.201 is the base station 20 being arranged on monitored space, and 202 is occurring source, and 301 is the base station 20 being arranged on protection zone.
Figure 11 quick gas phase Electronic Nose is analyzed two occurring source gases and is analyzed finger printing alignment similarity (A factory: solid line；B factory: dotted line) schematic diagram.
The two dimension that Figure 12 obtains after the finger printing of swift electron three occurring source of nose analysis is carried out main composition (PLA) identifies collection of illustrative plates schematic diagram, can clearly distinguish the feature of three factories (AG, AB, AM) from figure.
Detailed description of the invention
This utility model content is more specifically described in detail below by way of concrete system configuration and step of tracing to the source, do not constitute restriction of the present utility model, the displacement that those skilled in the art is carried out according to this utility model is revised, and the application process of the expansion of this utility model system is in scope of the present utility model.
Automatically the configuration of sampling module:
The sampling container 12 being placed in forvacuum chamber resettling 11, forvacuum cavity volume room 11 is connected with air pump 14 pipeline by the first control valve 13, forvacuum cavity volume room 11 pipeline connects pressure transducer 15, and sampling container 12 is connected with surrounding air by the second control valve 16 pipeline；Pressure transducer 15 signal is connected to controller 17, and controller 17 connects first control valve the 13, second control valve 16, air pump 14；When pressure transducer 15 perception vacuum declines, controller 17 is opened air pump 14 and opens the first control valve 13 and carry out evacuation, keeps the vacuum of forvacuum air chamber；When receiving sampling instruction, the second control valve 16 opened by controller 17, and surrounding air enters sampler bag；When sampling complete, controller 17 cuts out the second control valve 16, arranges the complete state of sampling 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.When controller 17 declines according to pressure transducer 15 signal sensing vacuum, send startup air pump 14, open the first control valve 13, improve the vacuum of forvacuum chamber resettling 11, when pressure transducer 5 signal sensing vacuum reaches predetermined value, the signal send and close the first control valve 13, stopping air pump 14；When controller 17 receives the automatic sampled signal from data transmission module 2, sending and open the second control valve 16, surrounding air enters sampling container 12, sends closedown the second control valve 16 signal afterwards, sends the complete signal of sampling to data transmission module 2.
When using sampling container 12 for Soviet Union's agate tank, the sampling Soviet Union agate tank of forvacuum, it is connected with air pump 14 through the first control valve 13 by pipeline, is connected with pressure transducer 15 through pipeline, be connected with surrounding air through control valve 16；Pressure transducer 15 signal is connected to controller 17, and controller 17 connects first control valve the 13, second control valve 16, air pump 14；When pressure transducer 15 perception vacuum declines, controller 17 is opened air pump 14 and opens the first control valve 13 and carry out evacuation, keeps the vacuum of sampling Soviet Union agate tank；When receiving sampling instruction, the second control valve 16 opened by controller 17, and surrounding air enters sampling Soviet Union agate tank；When sampling complete, controller 17 cuts out the second control valve 16, arranges the complete state of sampling to data transmission module 2 (Fig. 4).
When pressure transducer 15 perception vacuum declines, controller 17 is opened air pump 14 and opens the first control valve 13 and carry out evacuation, keeps the vacuum of forvacuum air chamber；When receiving sampling instruction, the second control valve 16 opened by controller 17, and surrounding air enters sampler bag；When sampling complete, controller 17 cuts out the second control valve 16, arranges the complete state of sampling to data transmission module 2.
For convenience, sampler bag and gas circuit be connected by removably connect.The general connector that can keep not leaking.
As required, sampling unit can arrange 1 or more than 1, typically arranges 1-4 individual preferably, and practical i.e. repeats to arrange the sampling unit of parallel connection in automatic sampling module 1 (Fig. 5, Fig. 7) for 1-3.
Concrete components and parts are configured to
Sampler bag 12: paper tinsel composite membrane gas sampling bag, E-switch board, 2L；
Vacuum chamber resettling is self-control, according to sampler bag specification can place sampler bag can the chamber of folding evacuation, be provided with the interface being connected for sampler bag and the pipeline being connected with pump and pressure transducer with pipeline.
Control valve 13, control valve 16:SMC type vacuum solenoid VT307,24VDC, Ya De visitor
Pressure transducer 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 up of multiple monitoring base stations 20 and data processing centre 5；
The monitoring base station of system is constituted:
Sensor assembly 3, weather monitoring module 4, automatic sampling module 1 and data transmission module 2 it is provided with in each monitoring base station 20；
Sensor assembly 3 is mainly made up of electric nasus system, and electric nasus system uses the RQBOX of ALPHAM.O.S company of France, is mainly made up of gas sensor array, Signal Pretreatment and simulation pretreatment and pattern recognition three part.This Electronic Nose by carrying out the olfactory system of simulating human to the monitoring of one or more odoring substances.Debate instrument be fitted domestication by smelling the person of debating and smelling, can direct delivery air abnormal flavour level read.
Weather monitoring module 4 uses Germany LUFFTWS600 integral type weather station (https://www.instrument.com.cn/netshow/SH101632/C123396.htm), can measure aerial temperature and humidity, air pressure, wind speed and direction and precipitation guide line.Relative humidity of atomsphere is measured by capacitance type sensor；Utilize a NTC module mensuration atmospheric temperature accurately；Ultrasonic wave principle is utilized to be measured wind speed and direction；The Doppler radar utilizing 24GHz measures the dropleting speed that each rain/snow drips, thus calculates the precipitation guide line such as precipitation intensity, type of precipitation and precipitation.All index integration are in a sensor, non-maintaining.
Monitoring Data is uploaded to data processing centre 5 through RS485 transmission to data transmission module 2, data transmission module 2 packing with weather monitoring module 4 by sensor assembly 3.
Data transmission module 2 uses the high accuracy module of 16, and often group data are all to be that a unit carries out on-the-spot storage, and data of uploading onto the server for every 1 minute with 30 seconds.Data transmission uses 3G communication technology that the data of collection are uploaded to the server of data center, and accepts instruction from data processing centre 5, operates base station equipment, carries out live data analysis.3G technology refers to the cellular mobile telecommunications technology of high speed data transfer.3G service can transmit sound and data message simultaneously, and speed is typically at hundreds of more than kbps.
Data transmission module 2 controls automatic sampling module 1 according to Three models and samples.1. pre-set threshold value, if 3 values of sensor assembly are beyond threshold value；2. sensor assembly 3 the data obtained is analyzed via SQC statistical quality, if data are not within normal range, then send sampled signal；3., after receiving the sampled signal that data center 5 is sent, send sampled signal to automatic sampling module 1.
After gridding monitoring system layout completes, all data are stored, analyze and issue via 3G transmission to data processing centre 5, data processing centre 5, and provide response suggestion according to analysis result by all data.
Data processing centre 5, by obtained Monitoring Data, uses diffusion model software, simulating pollution gas and stench spread condition.Pollute occur time, by diffusion model software counter trace back pollution may source and the contribution degree of each point, and the automatic sampling module 1 sending polluter that sampled signal to distance extrapolates nearest by data center 5 samples.
Diffusion model software uses France's Plum ' AIRDispersionmodelling software, this software is based on Lagrangian model, according to the meteorology (wind speed, wind direction, humidity, air pressure, temperature, rainfall, solar radiation) uploaded, source of the gas position and intensity and geographic factor, simulation different chemical gas and the spread condition of stench, provide distribution, and be expressed as scattergram, calculate distribution by intervals and superposition forms dispersion ability scattergram.
Automatically the taken sample of sampling module 1, quick gas phase Electronic Nose is utilized to be analyzed, it is respective stench fingerprint with the monolithic chromatogram figure of each sample, similarity according to principal component analysis (PCA) with Assessing parameters analysis (DFA) comparison each polluter sample with the stench fingerprint of neighboring area, to carry out Source Tracing, such as Figure 11.
Quickly gas phase Electronic Nose uses the HERACLE of ALPHAM.O.S company of France, can carry out volatility, semi-volatile organic matter monitoring, pollutant emission, the judgement monitoring of polluter, Work places safety monitoring and analysis, stench in volatility in the quick emergency monitoring of toxic and harmful, water, semi-volatile organic matter monitoring, soil and monitor and analyze.
1) powerful Electronic Nose easy to use, has the multi-functional characteristic of uniqueness
2) two double FID monitors of parallel opposed polarity metal capillary chromatography column twin columns
3) built-in cold-trap-can pre-concentration/desorption
Can obtain:
1) the characteristic description-Electronic Nose function that abnormal smells from the patient profile chart is relevant to sense organ
2) carry out the separation of compound according to gas chromatogram principle, identify and quantitatively-fast chromatographic analyzer function.
Do not lose the quick analysis of resolution
1. high-speed temperature programmed: reach 600 DEG C/min；
2. analytical cycle is short: 5min
High sensitivity
Semiconductor refrigerating adsorption trap: can realize pre-concentration desorption analysis, increases the sensitivity (pg) of high volatile samples
Good repeatability
1. retention time RSD < 0.3%；
2. peak area RSD < 3%
The software that friendly interface & is powerful
(1) easy unique function
1. multivariate statistics software kit: easy data analysis
The most kinds of spectrum elucidation instruments: product entirety local flavor contrasts
(2) individuation data handling implement
1. qualitative model: the contrast between product quality, the place of production, supplier, batch
2. Quality Control model: homogeneity of product analysis
3. quantitative model: local flavor/stench intensity, the prediction of compound concentration
(3) good repeatability
1. retention time RSD < 0.3%
2. peak area RSD < 3%
Arochembase:Kovats retention index information bank
1. comprise the compound identification of organoleptic attribute；
2. it is grouped by application or compound characteristics；
3. more than 230000 entries, 44000 kinds of compounds；
4. comprise NIST data base；
Spec characteristic
(1) sample introduction pattern & sampling method
1. liquid & headspace sampling pattern (SPME/SPDE/ITEX)；
2. manual & auto injection；
3. can choose internal pump, by direct sample in sampler bag or air, built-in adsorption trap, temperature regulating range (0-260 DEG C)
(2) chromatographic column & furnace temperature
1.2 metal capillary posts (10m-0.18mm)；
2. carrier gas: hydrogen or helium
3. operation temperature: 35 DEG C-300 DEG C
4. high-speed heating speed: up to 600 DEG C/min, 10 DEG C/s
(3) the double flame ion of monitor
1. monitor (FID), software controls automatic FID igniting；
2. operation temperature: up to 300 DEG C
3.FID sensitivity: 10-9to10-12A/mV；
The 4.FID range of linearity > 108
5. monitoring frequency: 100Hz
(4) characteristic
1.15min interior startup；
2. retention time RSD < 0.3%, peak area RSD < 3%；
3. monitoring limit nC12 < 100pg；
4. analytical cycle: 5min；
(5) safeguard
1. software overall monitor (FID lights a fire, pressure, flow set, and heating schedule sets)
2. regular maintenance (replacing of sample introduction pad)
(6) basic feature
1. dimensions: 230x320x440mm (LxHxP)
2. weight: 16kg
3. voltage: 100/115/230VAC
4. computer connects: USB
5. operating condition: temperature 0 DEG C-30 DEG C, humidity 0-90%
6. storage condition :-20 DEG C-60 DEG C
(7) software
The most perfect data processing software: chromatogram, fingerprint image (radar map, Quality Control figure, principal component analysis figure, it determines factorial analysis figure, soft Independent modeling analysis chart)；
The most multilingual interface: Chinese, English, French, Spanish, German, Japanese, Korean.
Claims (7)
1. an on-line continuous auto-monitor of surrounding air quality base station, including with lower module:
Sensor assembly (3), this module includes the sensor group having response to air smell component, is arranged to be connected with data transmission module (2), and data transmission module (2) reads sensor assembly (3) data；
Weather monitoring module (4), is arranged to monitor this local, region, base station weather information；
It is characterized in that, also include with lower module:
Automatically sampling module (1), is arranged to connect the data transmission module (2) and carry out sampling action according to data transmission module (2) instruction；
Data transmission module (2), there is multiple data exchange interface, it is arranged to and external communication exchange data and instruction, connect sensor assembly (3), accept sensor assembly (3) signal, connect weather monitoring module (4), accept weather monitoring module (4) information, instruct automatic sampling module (1).
2. an on-line continuous auto-monitor of surrounding air quality base station according to claim 1, is characterized in that described automatic sampling module (1) is:
The sampling container (12) being placed in chamber resettling (11), chamber resettling (11) is connected with air pump (14) pipeline by the first control valve (13), chamber resettling (11) pipeline connects pressure transducer (15), and sampling container (12) passes through the second control valve (16) pipeline JA(junction ambient) air；Pressure transducer (15) signal is connected to controller (17), and controller (17) connects the first control valve (13), the second control valve (16), air pump (14).
3. an on-line continuous auto-monitor of surrounding air quality base station according to claim 1, is characterized in that described automatic sampling module (1) is:
The sampling container (12) of forvacuum, it is connected with air pump (14) through the first control valve (13) by pipeline, it is connected with pressure transducer (15) through pipeline, is connected with surrounding air through control valve (16)；Pressure transducer (15) signal is connected to controller (17), controller (17) connects the first control valve (13), the second control valve (16), air pump (14), and wherein sampling container (12) is Soviet Union's agate tank.
4. an on-line continuous auto-monitor of surrounding air quality base station according to claim 1, is characterized in that, described sensor assembly (3) is selected from the TVOC sensor included for monitoring TVOC concentration, for monitoring H2The H of S concentration2Sensor and be used for monitoring NH3The NH of concentration3Sensor, for monitoring the combination of one or more of Electronic Nose of air abnormal flavour.
5. an on-line continuous auto-monitor of surrounding air quality base station according to claim 1, it is characterized in that, described weather monitoring module (4) includes the sensor composition monitoring air themperature, humidity, air pressure, wind speed, wind direction, is arranged to local, monitoring base station region meteorological data.
6. an on-line continuous auto-monitor of surrounding air quality network system, data processing centre (5), the gridding of source, face arbitrary described on-line continuous auto-monitor of surrounding air quality base station (20) of the multiple claim 1 to 5 arranged forms.
7. an on-line continuous auto-monitor of surrounding air quality network system according to claim 6, is characterized in that,
Described source gridding is set to arrange multiple monitoring base station (20) in monitored space segmentation or encirclement occurring source and arrange at least 1 monitoring base station (20) composition network in protection zone,
Described monitoring base station (20) connects described data processing centre (5) by data transmission module (2) network of monitoring base station, and described data processing centre (5) includes server, is provided with in server:
DBM, be arranged to record include each base station send come sensing data, meteorological data, automatic sampling module data, record has terrain data, each base station geographic position data；
Air plllutant model module, by intervals, calculates the distribution of air gas with foreign flavor concentration according to meteorological data, sensing data, terrain data；
Operational order module, including according to base station data, air quality distributed data, sample automatically in instruction base station.
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| CN105424840A (en) * | 2015-12-28 | 2016-03-23 | 周俊杰 | On-line continuous environmental air quality automatic monitoring system and peculiar smell source tracing method |
| CN106841436A (en) * | 2017-01-18 | 2017-06-13 | 上海市环境监测中心 | A kind of automatic monitoring and warning traceability systems of Industrial Area Atmospheric VOCs and its method |
| CN109857976A (en) * | 2019-01-16 | 2019-06-07 | 北京英视睿达科技有限公司 | Control station transmission influences method for establishing model, device, equipment and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105424840A (en) * | 2015-12-28 | 2016-03-23 | 周俊杰 | On-line continuous environmental air quality automatic monitoring system and peculiar smell source tracing method |
| CN105424840B (en) * | 2015-12-28 | 2018-08-28 | 周俊杰 | On-line continuous atmosphere quality automatic monitor system and peculiar smell air source source tracing method |
| CN106841436A (en) * | 2017-01-18 | 2017-06-13 | 上海市环境监测中心 | A kind of automatic monitoring and warning traceability systems of Industrial Area Atmospheric VOCs and its method |
| CN110620804A (en) * | 2018-12-25 | 2019-12-27 | 中国环境监测总站 | Environment monitoring system and method thereof |
| CN109857976A (en) * | 2019-01-16 | 2019-06-07 | 北京英视睿达科技有限公司 | Control station transmission influences method for establishing model, device, equipment and storage medium |
| CN109857976B (en) * | 2019-01-16 | 2023-10-31 | 北京英视睿达科技股份有限公司 | Control station transmission influence model establishment method, device, equipment and storage medium |
| CN110043320A (en) * | 2019-05-28 | 2019-07-23 | 中电建路桥集团有限公司 | A kind of tunnel construction environment monitoring method |
| CN110043320B (en) * | 2019-05-28 | 2020-06-12 | 中电建路桥集团有限公司 | Tunnel construction environment monitoring method |
| CN112540148A (en) * | 2019-09-20 | 2021-03-23 | 中国石油化工股份有限公司 | Method for constructing refinery enterprise atmospheric pollutant monitoring, early warning and tracing system |
| CN112540148B (en) * | 2019-09-20 | 2023-10-20 | 中国石油化工股份有限公司 | Construction method of atmospheric pollutant monitoring, early warning and traceability system of refining enterprise |
| CN112649569A (en) * | 2020-12-10 | 2021-04-13 | 南京长距科技有限公司 | Chemical industry park air multipoint sampling monitoring and tracing system and method |
| CN113484204A (en) * | 2021-06-02 | 2021-10-08 | 济南东之林智能软件有限公司 | Atmospheric pollution tracing method and device, electronic equipment and computer readable medium |
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