CN103984310A - Chemical industry park environment pollution detection method and device based on multi-source remote sensing data - Google Patents
Chemical industry park environment pollution detection method and device based on multi-source remote sensing data Download PDFInfo
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Abstract
The invention provides a chemical industry park environmental pollution detection method and device based on multi-source remote sensing data. The method mainly includes the steps that the multi-source remote sensing data of a detection region in a chemical industry park environment are obtained through a sensor or an earth observation satellite or others; pollution information is extracted from the multi-source remote sensing data, and whether a pollution accident happens on the detection region or not is judged according to the numerical value of the extracted pollution information and a preset pollutant judgment threshold value; according to a multi-source remote sensing image of the detection region where the pollution accident has already happened, smog floating analysis is performed on the detection region to generate a pollution accident substance diffusion model, and the position of an accident source is obtained according to the pollution accident substance diffusion model. The portable chemical industry park environmental pollution detection device integrates multi-source remote sensing data collection, pollution accident and accident source position judging, emergency processing and other functions, and rapidness, efficiency and standardization of environmental pollution sudden accident emergency rescue in a dangerous chemical industry park are achieved.
Description
Technical field
The present invention relates to pollution detection technical field, relate in particular to a kind of chemical industrial park environment pollution detection method and apparatus based on RS data.
Background technology
Public safety is the foundation stone of national security and social stability, and chemical industry is safely the important component part in public safety, is also the core in production safety field.The safety problem of hazardous chemical is that the various countries that make of the problem that countries in the world are extremely paid close attention to, especially some particularly serious accidents more and more pay attention to the safety problem of hazardous chemical.As there is the pernicious intoxication accident that methyl isocyanate leaks in India's Bhopal suburbs insecticide factory in 1984, have people more than 2500 to be poisoned to death, more than 20 ten thousand people poisoning injured and wherein most people lose the sight of both eyes to disable, 670,000 people are subject to the impact of Residual toxic gases.In recent years, along with the high speed development of China's chemical industry, petrochemical industry, hazardous chemical accident is in multiple situation.Since 2004, there is successively Tianyuan Chemical Plant, Chongqing " 416 " chlorine leakage explosion accident, Beijing-Shanghai high speed " 329 " Liquid Chlorine Leakage Accident, Jilin Chemical Shuan Ben factory of PetroChina Company Limited. " 1113 " and fired the particularly serious accident of the hazardous chemicals such as leakage accident, caused huge casualties and property loss.Because hazardous chemical accident has more sudden, complicacy and calamity compared with other types accident, easily jeopardize the public and Environmental security, therefore, carry out the emergent preparation of hazardous chemical accident, the emergent rescue capability of raising accident, to reducing harm, the reduction causality loss of hazardous chemical accident, tool is of great significance.
Chemical industry security incident is typical unconventional accident, and derivative, secondary Frequent Accidents, is easy to cause Environment Pollution Event etc.Once inflammable, explosive, toxic gas leaks in production, transport, use procedure, will cause poisoning, even explosion accident of fire, the serious harm people's safety of life and property.Due to the diffusivity of danger oxidizing gases existence itself; after leaking, under the effect of external wind and inner concentration gradient, gas can spread along ground surface; in chemical industry or on-the-spot combustion explosion or the murder by poisoning explosive area of forming of industrial park burst accident, expand hazard area.After chemical leakage accident occurs, accident handling will be around sample detecting, determine warning region, organize the masses in hazardous location to withdraw, rescue the aspects such as poisoning personnel, leak stopping, decontamination launches.First aspect of disposing should be to utilize dangerization product emergency monitoring equipment, emergency rescue scene image wireless transmission equipment; Rapid Establishment emergent monitoring system; rapidly accurate identified leakage gaseous species, gas leakage concentration and on-the-spot wind direction and wind velocity; and pass live video image back, provide foundation for determining evacuating personnel scope and evacuating path.
At present, the portable detection equipment for danger product gas concentration inspect of the prior art, function ratio is more single; what have can only carry out gas detection; what have can only carry out emergency system application commander, between various device, cannot automatically realize effective association, is difficult to collaborative work.Accident also cannot promptly and accurately be obtained the relevant information of the scene of the accident after occurring, and cannot accurately judge the position in accident source, has a strong impact on carrying out smoothly of emergency management and rescue work, easily causes the heavy losses of property and personnel casualty accidents.
Summary of the invention
Embodiments of the invention provide a kind of chemical industrial park environment pollution detection method and apparatus based on RS data, with rapid, the high efficiency and the standardization that improve that dangerous chemical industrial park environment burst accident emergency management and rescue dispose.
The invention provides following scheme:
A chemical industrial park environment pollution detection method based on RS data, comprising:
Obtain the RS data of the surveyed area in the environment of chemical industrial park by sensor or earth observation satellite;
Described RS data is carried out to polluted information extraction, according to the numerical value of the polluted information extracting and predefined pollutant judgment threshold, judge whether described surveyed area contamination accident has occurred;
According to the multi-source Remote Sensing Images having occurred in the RS data of surveyed area of contamination accident, the described surveyed area that contamination accident has occurred is carried out to the analysis of waving property of smog, generate contamination accident material diffusion model, obtain the position in accident source according to described contamination accident material diffusion model.
Described sensor or the earth observation satellite of passing through, obtains the RS data of the surveyed area in the environment of chemical industrial park, comprising:
Surveyed area by each appointment in the environment of chemical industrial park of portable chemical industrial park environment pollution detection device is maked an inspection tour, and obtains the multi-source remote sensing satellite data of surveyed area in multiple sensors corresponding to surveyed area that described chemical industrial park environment pollution detection device arranges from the environment of chemical industrial park; Or described chemical industrial park environment pollution detection device obtains the RS data of described surveyed area from various earth observation satellites;
Described RS data comprises multi-source remote sensing satellite image, and described RS data is carried out to pre-service, and pretreated RS data is stored.
Described carries out pre-service to described RS data, comprising: the multi-source Remote Sensing Images in described RS data is carried out to radiant correction, geometry correction and remote sensing image fusion processing.
Described carries out polluted information extraction to RS data, according to the numerical value of the polluted information extracting and predefined pollutant judgment threshold, judges that whether described surveyed area contamination accident has occurred, and comprising:
Polluted information corresponding to each surveyed area under normal circumstances obtaining is in advance stored in polluted information database, and described polluted information comprises title and the judgment threshold of pollutant;
RS data through pretreated each surveyed area is carried out to polluted information extraction, the polluted information of storing this surveyed area in the polluted information of the surveyed area extracting and described polluted information database is compared, judge whether that the soiling value of any one pollutant extracting is greater than the judgment threshold of this pollutant of storage, if so, judge that contamination accident has occurred described surveyed area; Otherwise, judge that contamination accident does not occur described surveyed area.
Described according to the multi-source Remote Sensing Images having occurred in the RS data of described surveyed area of contamination accident, the described surveyed area that contamination accident has occurred is carried out to the analysis of waving property of smog, generate contamination accident material diffusion model, the position that obtains accident source according to described contamination accident material diffusion model, comprising:
The multiple multi-source Remote Sensing Images that occurred in the RS data of surveyed area of contamination accident are carried out to the analysis of waving property of smog, generate contamination accident material diffusion polar plot, utilize the physical condition of the position scene of described accident material diffusion polar plot and the described surveyed area that contamination accident has occurred to set up contamination accident material diffusion model;
Utilize neural network ensemble optimized algorithm dynamically to adjust the initial conditions of described contamination accident material diffusion model, make described initial conditions reach consistent with described contamination accident material diffusion polar plot, complete the optimization process to described contamination accident material diffusion model;
Utilize numerical value side to solve indirect problem to the contamination accident material diffusion model after optimizing, determine the position in the accident source of described contamination accident according to solving result.
A chemical industrial park environment pollution detection device based on RS data, comprising:
RS data acquiring unit, for by sensor or earth observation satellite, obtains the RS data of the surveyed area in the environment of chemical industrial park;
Contamination accident judging unit, carry out polluted information extraction for the RS data that described RS data acquiring unit is obtained, according to the numerical value of the polluted information extracting and predefined pollutant judgment threshold, judge whether described surveyed area contamination accident has occurred;
Accident source position determining unit, for the described surveyed area that contamination accident has occurred being carried out to the analysis of waving property of smog according to the multi-source Remote Sensing Images of RS data of the surveyed area that contamination accident has occurred, generate contamination accident material diffusion model, obtain the position in accident source according to described contamination accident material diffusion model.
Described RS data acquiring unit, specifically for making an inspection tour by the surveyed area of portable chemical industrial park environment pollution detection device each appointment in the environment of chemical industrial park, in multiple sensors corresponding to the surveyed area that utilizes described chemical industrial park environment pollution detection device to arrange, obtain the RS data of surveyed area from the environment of chemical industrial park; Or, utilize described chemical industrial park environment pollution detection device to obtain the RS data of described surveyed area from various earth observation satellites, described RS data comprises multi-source Remote Sensing Images.
Described device also comprises:
RS data pretreatment unit, for described RS data is carried out to pre-service, pretreated RS data is stored, and described pre-service comprises: the multi-source Remote Sensing Images in described RS data is carried out to radiant correction, geometry correction and remote sensing image fusion processing.
Described contamination accident judging unit, specifically for polluted information corresponding to each surveyed area under normal circumstances obtaining is in advance stored in polluted information database, described polluted information comprises title and the judgment threshold of pollutant;
RS data through pretreated each surveyed area is carried out to polluted information extraction, the polluted information of storing this surveyed area in the polluted information of the surveyed area extracting and described polluted information database is compared, judge whether that the soiling value of any one pollutant extracting is greater than the judgment threshold of this pollutant of storage, if so, judge that contamination accident has occurred described surveyed area; Otherwise, judge that contamination accident does not occur described surveyed area.
Described accident source position determining unit, specifically for the multiple multi-source Remote Sensing Images in the RS data of the surveyed area that contamination accident has occurred are carried out to the analysis of waving property of smog, generate contamination accident material diffusion polar plot, utilize the physical condition of the position scene of described accident material diffusion polar plot and the described surveyed area that contamination accident has occurred to set up contamination accident material diffusion model;
Utilize neural network ensemble optimized algorithm dynamically to adjust the initial conditions of described contamination accident material diffusion model, make described initial conditions reach consistent with described contamination accident material diffusion polar plot, complete the optimization process to described contamination accident material diffusion model;
Utilize numerical value side to solve indirect problem to the contamination accident material diffusion model after optimizing, determine the position in the accident source of described contamination accident according to solving result.
The technical scheme being provided by the embodiment of the invention described above can be found out, the embodiment of the present invention is from the active demand of hazardous chemical burst accident emergency management and rescue, taking RS data as basis, develop the collection of a kind of set RS data, contamination accident and the judgement of accident source position, and the various functions such as emergency processing are in the portable chemical industrial park of one environment pollution detection device, realize the rapid of dangerous chemical industrial park environment burst accident emergency management and rescue disposal, high efficiency and standardization, solve the collection of field data in the environment burst accident office process of dangerous chemical industrial park, emergency system is supported, RS (remote sensing), many high-tech of GIS (Geographic Information System) technical standpoint promotes dangerization product environmental monitoring and contingency procedure efficiency.
Brief description of the drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The processing flow chart of a kind of chemical industrial park environment pollution detection method based on RS data that Fig. 1 provides for the embodiment of the present invention one;
The structural drawing of a kind of portable chemical industrial park environment pollution detection device based on RS data that Fig. 2 provides for the embodiment of the present invention two, in figure, RS data acquiring unit 21, RS data pretreatment unit 22, contamination accident judging unit 23, accident source position determining unit 24, emergency processing unit 25.
Embodiment
For ease of the understanding to the embodiment of the present invention, be further explained explanation below in conjunction with accompanying drawing as an example of several specific embodiments example, and each embodiment does not form the restriction to the embodiment of the present invention.
Embodiment mono-
In dangerization product environment burst accident office process, what clerical workforce needed is a kind of comprehensive integration equipment that can effectively collect field data, obtain the emergent support of on-site working and can effectively carry out communication with clerical workforce backstage relevant information system.
The embodiment of the present invention has proposed a kind of portable chemical industrial park environment pollution detection device based on RS data, and returning apparatus comprises RS data acquiring unit, RS data pretreatment unit, contamination accident judging unit, accident source position determining unit and emergency processing unit.
Based on said apparatus, the treatment scheme of a kind of chemical industrial park environment pollution detection method based on RS data that this embodiment provides as shown in Figure 1, comprises following treatment step:
Step S110, by the multiple sensors or the various earth observation satellite that arrange in the environment of chemical industrial park, obtain the RS data of surveyed area.
RS data refers to the remote sensing images of the same area that multiple sensors obtain or the same sensor remote sensing image data at the same area not obtaining in the same time.The complementary information in the different pieces of information source of Multi-source Information Fusion energy enrichment the same area, reduces the inexactness of data, reduces the blur level of data, makes classification more accurately and reliable, to form, the complete consistent information of target area is described.
In embodiments of the present invention, testing staff need to carry the above-mentioned portable chemical industrial park environment pollution detection device based on RS data, in the environment of chemical industrial park, the surveyed area of each appointment is maked an inspection tour, and the RS data acquiring unit in device obtains the RS data of each surveyed area.
In multiple sensors corresponding to surveyed area that above-mentioned RS data acquiring unit can arrange from the environment of chemical industrial park, obtain the RS data of surveyed area.
Along with the development of modern Remote Sensing Technical, various earth observation satellites can provide the remote sensing images of different spatial resolution, temporal resolution and spectral resolution continuously, and these remote sensing images are exactly RS data.Therefore, above-mentioned RS data acquiring unit can also obtain from various earth observation satellites the RS data of surveyed area.
Above-mentioned RS data mainly comprises multi-source Remote Sensing Images.
Step S120, RS data pretreatment unit carry out pre-service to RS data.
RS data pretreatment unit to above-mentioned RS data carry out real-time calling, Fast Correction, image registration, inlay, the pre-service such as fusion, mainly comprise the radiant correction of multi-source Remote Sensing Images and geometry correction are provided, and the processing such as remote sensing image fusion.
Remote sensing images radiant correction: due to absorption, scattering and the impact of other enchancement factors of sensor response characteristic and atmosphere, cause image blurring distortion, cause decline relative with contrast of resolution of image, these all need to restore by radiant correction, and the process that is attached to the various distortions in radiance in elimination remote sensing image data is radiant correction.
Image correction in remote sensing: the geometry correction of remote sensing digital image has two kinds: the one, according to satellite orbit formula by the position of satellite, attitude, track, the earth curve form and scanning feature are calculated the coordinate of pixel on every sweep trace as the function of time, this correction often makes to proofread and correct rear image because the position to remote sensor and attitude measurement accuracy are not high and still has no small error.So be called again thick geometry correction, slightly proofread and correct generally by the remotely-sensed data producer, as satellite remote sensing land station or remote sensing company are responsible for carrying out; The 2nd, to carrying out smart geometry correction through thick geometry correction image, this correction need to be by ground control point, and the calibration model such as polynomial expression carries out.In general, remote sensing satellite uses location technology more accurately, and attitude keeps quite stable, change the geometric error causing less, but the geometric error that in imaging process, atmospheric disturbance causes is larger by the attitude of satellite; And airborne remote sensing aircraft, particularly aeromodelling airplane, its attitude changes the geometric error causing can not be ignored, sometimes also quite large.Geometry correction utilizes reference mark to carry out, it is the geometric distortion process of carrying out approximate description remote sensing images by a kind of mathematical model, and utilize this geometric distortion model of some corresponding point (being reference mark) ball between remote sensing images and the standard map of distortion, then utilize time model to carry out the correction of geometric distortion, the concrete reason of distortion is not considered in this correction, and only considers how to utilize distortion model to carry out correcting image.
Remote sensing image fusion: image fusion technology is the information fusion taking image as research object, its is the multiple image that same target or scene are obtained by different sensors, or the different images obtaining with different imaging modes or at different imaging times with sensor of the same race, be fused to piece image, in this width fused images, can reflect the information of multiple original image, to reach the comprehensive description to target and atural object.
RS data pretreatment unit provides the procedure between RS data, integrated, mass pretreatment process, realizes the robotization of RS data processing.Pretreated RS data is transferred to contamination accident judging unit by RS data pretreatment unit.
Step S130, contamination accident judging unit, to carrying out polluted information extraction through pretreated RS data, judge according to polluted information whether surveyed area contamination accident has occurred.
The embodiment of the present invention need to be obtained polluted information corresponding to each surveyed area under normal condition (situation about not polluting) in advance, storage polluted information corresponding to each surveyed area under normal circumstances in polluted information database in contamination accident judging unit, this polluted information comprises title and the judgment threshold of pollutant.The particular content such as title, emission standard of polluted information can be participated in country or area or industry standard definition, such as referring to country of People's Republic of China (PRC) discharge standard of air pollutants.Above-mentioned polluted information can be sulphuric dioxide, oxides of nitrogen, hydrogen fluoride, mist of chromic acid, sulfuric acid mist and fluoride etc., in the time that the diameter of aiutage is 15m, the highest permission drainage rate (kg/h) of sulphuric dioxide is one-level: 1.6, and secondary: 3.0, three grades: 4.1.
Contamination accident judging unit carries out polluted information extraction to the RS data through pretreated each surveyed area, the polluted information of storing this surveyed area in the polluted information of the surveyed area extracting and described polluted information database is compared, judge whether that the soiling value of any pollutant extracting is greater than the judgment threshold of this pollutant of storage, if so, judge that contamination accident has occurred described surveyed area; Otherwise, judge that contamination accident does not occur described surveyed area.
There is contamination accident when judging, performed step S140; Not there is contamination accident when judging, perform step S160.
Above-mentioned RS data acquiring unit, RS data pretreatment unit, contamination accident judging unit, ambient zone, chemical industrial park dynamic monitoring system based on RS data provides the dynamic monitoring function to ambient zone, chemical industrial park, comprehensive utilization RS data, on the basis of fast process disposal system and accident sensor information extraction system, realize the Remote Sensing Dynamic Monitoring to ambient zone, chemical industrial park.
Step S140, multiple multi-source Remote Sensing Images of surveyed area are carried out to the analysis of waving property of smog, generate contamination accident material diffusion model, contamination accident material diffusion model is solved indirect problem and obtained the position in accident source.
Occur after contamination accident when judging surveyed area, need to carry out identification to the accident source of the contamination accident of surveyed area.
Accident source identification unit carries out the analysis of waving property of smog to the multiple multi-source Remote Sensing Images that occurred in the RS data of surveyed area of contamination accident, generates contamination accident material diffusion polar plot.The physical condition that recycles this accident material diffusion polar plot and the position scene of the surveyed area of contamination accident occurred is set up contamination accident material diffusion model, dynamically adjust the initial conditions of contamination accident material diffusion model in conjunction with neural network ensemble optimized algorithm, make initial conditions reach consistent or approximate consistent with above-mentioned contamination accident material diffusion polar plot, complete the optimization process to contamination accident material diffusion model.The process that generates contamination accident material diffusion polar plot is mainly to utilize the remote sensing images contrast of different time to generate the diffusion of contamination accident material, then utilizes the buffer technology of geographic information system technology to carry out describing of contamination polar plot.
Air pollution model: under research DIFFERENT METEOROLOGICAL CONDITIONS, the object of atmospheric pollutant dispersion rule is: 1. according to local meteorological condition, provide scientific basis to industrial programming and distribution, the atmospheric pollution that prevention may cause; 2. according to local Atmospheric diffusion ability and environmental health standards, emission standard (discharge capacity and height of release) is proposed; 3. carry out air pollution forecasting, in a planned way take emergency measures, prevent the deterioration (long-term) of environmental quality and prevent contingent contamination accident (short-term).Diffusion theory has two kinds of approach to the research of air pollution diffusion process: one is experimental technique, be exactly for given emission source, measure the CONCENTRATION DISTRIBUTION of pollutant, and find out the relation that same time of CONCENTRATION DISTRIBUTION, space and meteorological condition change, explore its rule.This method also can be implemented in the method for the indoor wind tunnel simulation of experiment.Another kind is theoretical method, uses the theory of turbulent flow exchange to set up the pattern (seeing air pollution model) of describing air pollution diffusion dilution, finds out the relation of CONCENTRATION DISTRIBUTION and meteorologic parameter.
The main theory system of DIFFUSION IN TURBULENCE has two kinds: 1. gradient-Conveying Theory: start with from mean field, utilize turbulent flow semiempirical theory (being linear between flux and gradient) can release DIFFUSION IN TURBULENCE equation, under certain initial conditions and boundary condition, can obtain the solution of equation.But theoretical result and actual result of deriving often has a tremendous difference.2. statistical theory: start with from studying indivedual fluid fine particle motions, and accordingly to determine the characteristic quantity that represents diffusion.Describe diffusion parameter with the statistical characteristic value of field of turbulent flow, and express these statistical characteristic values by the meteorologic parameter that can survey, and then find out diffusion parameter and can survey contacting directly of meteorological condition.
Then, utilize numerical value side to solve indirect problem to the contamination accident material diffusion model after optimizing, determine the position in the accident source of above-mentioned contamination accident according to solving result.
Step S150, emergency processing unit, according to position and the polluted information in the accident source monitoring, provide on-site emergency disposal.
Displaying scene environmental information directly perceived and multi-source Remote Sensing Images on the display screen of emergency processing unit, and live video, aid decision making software in emergency processing unit, according to information such as the chemicals physicochemical properties in position and the polluted information in the accident source monitoring, provides on-site emergency disposal information.
According to field data and contamination accident material diffusion model, calculate source of leaks intensity, determine evacuation scope, and on GIS, demonstrate the distribution situation of evacuating path and emergency management and rescue strength, for on-the-spot emergency management and rescue commander provides decision support.
Step S160, flow process finish.
Embodiment bis-
This embodiment provides a kind of portable chemical industrial park environment pollution detection device based on RS data, and its specific implementation structure as shown in Figure 2, specifically can comprise following module:
RS data acquiring unit 21, for by sensor or earth observation satellite, obtains the RS data of the surveyed area in the environment of chemical industrial park;
RS data pretreatment unit 22, for described RS data is carried out to pre-service, pretreated RS data is stored, and described pre-service comprises: the multi-source Remote Sensing Images in described RS data is carried out to radiant correction, geometry correction and remote sensing image fusion processing.
Contamination accident judging unit 23, carry out polluted information extraction for the RS data that described RS data acquiring unit is obtained, according to the numerical value of the polluted information extracting and predefined pollutant judgment threshold, judge whether described surveyed area contamination accident has occurred;
Accident source position determining unit 24, for the described surveyed area that contamination accident has occurred being carried out to the analysis of waving property of smog according to the multi-source Remote Sensing Images of RS data of the surveyed area that contamination accident has occurred, generate contamination accident material diffusion model, obtain the position in accident source according to described contamination accident material diffusion model.
Further, described RS data acquiring unit 21, specifically for making an inspection tour by the surveyed area of portable chemical industrial park environment pollution detection device each appointment in the environment of chemical industrial park, in multiple sensors corresponding to the surveyed area that utilizes described chemical industrial park environment pollution detection device to arrange, obtain the RS data of surveyed area from the environment of chemical industrial park; Or, utilize described chemical industrial park environment pollution detection device to obtain the RS data of described surveyed area from various earth observation satellites, described RS data comprises multi-source Remote Sensing Images.
Further, described contamination accident judging unit 23, specifically for polluted information corresponding to each surveyed area under normal circumstances obtaining is in advance stored in polluted information database, described polluted information comprises title and the judgment threshold of pollutant;
RS data through pretreated each surveyed area is carried out to polluted information extraction, the polluted information of storing this surveyed area in the polluted information of the surveyed area extracting and described polluted information database is compared, judge whether that the soiling value of any pollutant extracting is greater than the judgment threshold of this pollutant of storage, if so, judge that contamination accident has occurred described surveyed area; Otherwise, judge that contamination accident does not occur described surveyed area.
Further, described accident source position determining unit 24, specifically for the multiple multi-source Remote Sensing Images in the RS data of the surveyed area that contamination accident has occurred are carried out to the analysis of waving property of smog, generate contamination accident material diffusion polar plot, utilize the physical condition of the position scene of described accident material diffusion polar plot and the described surveyed area that contamination accident has occurred to set up contamination accident material diffusion model;
Utilize neural network ensemble optimized algorithm dynamically to adjust the initial conditions of described contamination accident material diffusion model, make described initial conditions reach consistent with described contamination accident material diffusion polar plot, complete the optimization process to described contamination accident material diffusion model;
Utilize numerical value side to solve indirect problem to the contamination accident material diffusion model after optimizing, determine the position in the accident source of described contamination accident according to solving result.
Further, described device can also comprise:
Emergency processing unit 25, for according to position and the polluted information in the accident source monitoring, provides on-site emergency disposal.Displaying scene environmental information directly perceived and multi-source Remote Sensing Images on the display screen of emergency processing unit, and live video, aid decision making software in emergency processing unit, according to information such as the chemicals physicochemical properties in position and the polluted information in the accident source monitoring, provides on-site emergency disposal information.
According to field data and contamination accident material diffusion model, calculate source of leaks intensity, determine evacuation scope, and on GIS, demonstrate the distribution situation of evacuating path and emergency management and rescue strength, for on-the-spot emergency management and rescue commander provides decision support.
The detailed process and the preceding method embodiment that carry out the chemical industrial park environment pollution detection based on RS data with the device of the embodiment of the present invention are similar, repeat no more herein.
In sum, the embodiment of the present invention is from the active demand of hazardous chemical burst accident emergency management and rescue, taking RS data as basis, develop the collection of a kind of set RS data, contamination accident and the judgement of accident source position, and the various functions such as emergency processing are in the portable chemical industrial park of one environment pollution detection device, realize the rapid of dangerous chemical industrial park environment burst accident emergency management and rescue disposal, high efficiency and standardization, solve the collection of field data in the environment burst accident office process of dangerous chemical industrial park, emergency system is supported, RS, many high-tech of GIS technical standpoint promotes monitoring and the contingency procedure efficiency of dangerous chemical industrial park environment.
The embodiment of the present invention has occurred after contamination accident in judgement, can carry out fast emergency management and rescue work, avoids causing the heavy losses of property and personnel casualty accidents.
One of ordinary skill in the art will appreciate that: accompanying drawing is the schematic diagram of an embodiment, the module in accompanying drawing or flow process might not be that enforcement the present invention is necessary.
As seen through the above description of the embodiments, those skilled in the art can be well understood to the mode that the present invention can add essential general hardware platform by software and realizes.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product can be stored in storage medium, as ROM/RAM, magnetic disc, CD etc., comprise that some instructions (can be personal computers in order to make a computer equipment, server, or the network equipment etc.) carry out the method described in some part of each embodiment of the present invention or embodiment.
Each embodiment in this instructions all adopts the mode of going forward one by one to describe, between each embodiment identical similar part mutually referring to, what each embodiment stressed is and the difference of other embodiment.Especially,, for device or system embodiment, because it is substantially similar in appearance to embodiment of the method, so describe fairly simplely, relevant part is referring to the part explanation of embodiment of the method.Apparatus and system embodiment described above is only schematic, the wherein said unit as separating component explanation can or can not be also physically to separate, the parts that show as unit can be or can not be also physical locations, can be positioned at a place, or also can be distributed in multiple network element.Can select according to the actual needs some or all of module wherein to realize the object of the present embodiment scheme.Those of ordinary skill in the art, in the situation that not paying creative work, are appreciated that and implement.
The above; only for preferably embodiment of the present invention, but protection scope of the present invention is not limited to this, is anyly familiar with in technical scope that those skilled in the art disclose in the present invention; the variation that can expect easily or replacement, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (10)
1. the chemical industrial park environment pollution detection method based on RS data, is characterized in that, comprising:
Obtain the RS data of the surveyed area in the environment of chemical industrial park by sensor or earth observation satellite;
Described RS data is carried out to polluted information extraction, according to the numerical value of the polluted information extracting and predefined pollutant judgment threshold, judge whether described surveyed area contamination accident has occurred;
According to the multi-source Remote Sensing Images having occurred in the RS data of surveyed area of contamination accident, the described surveyed area that contamination accident has occurred is carried out to the analysis of waving property of smog, generate contamination accident material diffusion model, obtain the position in accident source according to described contamination accident material diffusion model.
2. the chemical industrial park environment pollution detection method based on RS data according to claim 1, is characterized in that, described sensor or the earth observation satellite of passing through obtains the RS data of the surveyed area in the environment of chemical industrial park, comprising:
Surveyed area by each appointment in the environment of chemical industrial park of portable chemical industrial park environment pollution detection device is maked an inspection tour, and obtains the multi-source remote sensing satellite data of surveyed area in multiple sensors corresponding to surveyed area that described chemical industrial park environment pollution detection device arranges from the environment of chemical industrial park; Or described chemical industrial park environment pollution detection device obtains the RS data of described surveyed area from various earth observation satellites;
Described RS data comprises multi-source remote sensing satellite image, and described RS data is carried out to pre-service, and pretreated RS data is stored.
3. the chemical industrial park environment pollution detection method based on RS data according to claim 2, it is characterized in that, described carries out pre-service to described RS data, comprising: the multi-source Remote Sensing Images in described RS data is carried out to radiant correction, geometry correction and remote sensing image fusion processing.
4. the chemical industrial park environment pollution detection method based on RS data according to claim 2, it is characterized in that, described carries out polluted information extraction to RS data, according to the numerical value of the polluted information extracting and predefined pollutant judgment threshold, judge that whether described surveyed area contamination accident has occurred, and comprising:
Polluted information corresponding to each surveyed area under normal circumstances obtaining is in advance stored in polluted information database, and described polluted information comprises title and the judgment threshold of pollutant;
RS data through pretreated each surveyed area is carried out to polluted information extraction, the polluted information of storing this surveyed area in the polluted information of the surveyed area extracting and described polluted information database is compared, judge whether that the soiling value of any one pollutant extracting is greater than the judgment threshold of this pollutant of storage, if so, judge that contamination accident has occurred described surveyed area; Otherwise, judge that contamination accident does not occur described surveyed area.
5. according to the chemical industrial park environment pollution detection method based on RS data described in claim 1 to 4 any one, it is characterized in that, described according to the multi-source Remote Sensing Images having occurred in the RS data of described surveyed area of contamination accident, the described surveyed area that contamination accident has occurred is carried out to the analysis of waving property of smog, generate contamination accident material diffusion model, the position that obtains accident source according to described contamination accident material diffusion model, comprising:
The multiple multi-source Remote Sensing Images that occurred in the RS data of surveyed area of contamination accident are carried out to the analysis of waving property of smog, generate contamination accident material diffusion polar plot, utilize the physical condition of the position scene of described accident material diffusion polar plot and the described surveyed area that contamination accident has occurred to set up contamination accident material diffusion model;
Utilize neural network ensemble optimized algorithm dynamically to adjust the initial conditions of described contamination accident material diffusion model, make described initial conditions reach consistent with described contamination accident material diffusion polar plot, complete the optimization process to described contamination accident material diffusion model;
Utilize numerical value side to solve indirect problem to the contamination accident material diffusion model after optimizing, determine the position in the accident source of described contamination accident according to solving result.
6. the chemical industrial park environment pollution detection device based on RS data, is characterized in that, comprising:
RS data acquiring unit, for by sensor or earth observation satellite, obtains the RS data of the surveyed area in the environment of chemical industrial park;
Contamination accident judging unit, carry out polluted information extraction for the RS data that described RS data acquiring unit is obtained, according to the numerical value of the polluted information extracting and predefined pollutant judgment threshold, judge whether described surveyed area contamination accident has occurred;
Accident source position determining unit, for the described surveyed area that contamination accident has occurred being carried out to the analysis of waving property of smog according to the multi-source Remote Sensing Images of RS data of the surveyed area that contamination accident has occurred, generate contamination accident material diffusion model, obtain the position in accident source according to described contamination accident material diffusion model.
7. the chemical industrial park environment pollution detection device based on RS data according to claim 6, is characterized in that:
Described RS data acquiring unit, specifically for making an inspection tour by the surveyed area of portable chemical industrial park environment pollution detection device each appointment in the environment of chemical industrial park, in multiple sensors corresponding to the surveyed area that utilizes described chemical industrial park environment pollution detection device to arrange, obtain the RS data of surveyed area from the environment of chemical industrial park; Or, utilize described chemical industrial park environment pollution detection device to obtain the RS data of described surveyed area from various earth observation satellites, described RS data comprises multi-source Remote Sensing Images.
8. according to the chemical industrial park environment pollution detection device based on RS data described in claim 6 or 7, it is characterized in that, described device also comprises:
RS data pretreatment unit, for described RS data is carried out to pre-service, pretreated RS data is stored, and described pre-service comprises: the multi-source Remote Sensing Images in described RS data is carried out to radiant correction, geometry correction and remote sensing image fusion processing.
9. the chemical industrial park environment pollution detection device based on RS data according to claim 8, is characterized in that:
Described contamination accident judging unit, specifically for polluted information corresponding to each surveyed area under normal circumstances obtaining is in advance stored in polluted information database, described polluted information comprises title and the judgment threshold of pollutant;
RS data through pretreated each surveyed area is carried out to polluted information extraction, the polluted information of storing this surveyed area in the polluted information of the surveyed area extracting and described polluted information database is compared, judge whether that the soiling value of any one pollutant extracting is greater than the judgment threshold of this pollutant of storage, if so, judge that contamination accident has occurred described surveyed area; Otherwise, judge that contamination accident does not occur described surveyed area.
10. the chemical industrial park environment pollution detection device based on RS data according to claim 9, is characterized in that:
Described accident source position determining unit, specifically for the multiple multi-source Remote Sensing Images in the RS data of the surveyed area that contamination accident has occurred are carried out to the analysis of waving property of smog, generate contamination accident material diffusion polar plot, utilize the physical condition of the position scene of described accident material diffusion polar plot and the described surveyed area that contamination accident has occurred to set up contamination accident material diffusion model;
Utilize neural network ensemble optimized algorithm dynamically to adjust the initial conditions of described contamination accident material diffusion model, make described initial conditions reach consistent with described contamination accident material diffusion polar plot, complete the optimization process to described contamination accident material diffusion model;
Utilize numerical value side to solve indirect problem to the contamination accident material diffusion model after optimizing, determine the position in the accident source of described contamination accident according to solving result.
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