CN108107017B - Method based on the distribution of terahertz detection high-risk chemical - Google Patents
Method based on the distribution of terahertz detection high-risk chemical Download PDFInfo
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- 238000004590 computer program Methods 0.000 claims description 2
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- 239000007787 solid Substances 0.000 abstract description 2
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- 238000012544 monitoring process Methods 0.000 description 2
- 239000004071 soot Substances 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 238000001328 terahertz time-domain spectroscopy Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
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- 241001269238 Data Species 0.000 description 1
- 238000005033 Fourier transform infrared spectroscopy Methods 0.000 description 1
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- G—PHYSICS
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- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
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- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
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- G01N21/3581—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using far infrared light; using Terahertz radiation
- G01N21/3586—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using far infrared light; using Terahertz radiation by Terahertz time domain spectroscopy [THz-TDS]
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/3504—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis
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Abstract
The present invention relates to a kind of methods of terahertz detection atmosphere high-risk chemical distribution: the concentration distribution information of the atmosphere high-risk chemical of current detecting location is obtained by detection device；Target acquisition position is obtained according to the concentration distribution information, and driving detection device marches to the target acquisition position；The atmosphere high-risk chemical concentration distribution information for obtaining the target acquisition position again obtains the atmosphere high-risk chemical concentration distribution information of multiple groups detecting location；It is needing to make the complex environment judged rapidly by the invention it is possible to realize, more elements such as atmosphere high-risk chemical composition, concentration, trend can be subjected to solid and showed；It realizes and the originally discrete obtained concentration data that measures is subjected to continuous treatment, crowd evacuation measure and malicious source suppressing method can quickly and effectively be made in atmosphere high-risk chemical leak scene by realizing.
Description
Technical field
The present invention relates to Environmental security field, more particularly to a kind of based on the distribution of terahertz detection high-risk chemical
Method.
Background technique
Usually, at explosion or attack of terrorism scene, it is high-risk often to there is the indefinite atmosphere of one or several kinds of ingredients
Chemicals.But due to the complexity of site environment, people are often difficult to determine that the ingredient of atmosphere high-risk chemical, atmosphere are high
The source of danger chemicals and the propagation path of atmosphere high-risk chemical, therefore can not quickly and effectively make crowd and dredge
The measure of dissipating and malicious source suppressing method, great loss is caused safely to the people's lives and property, and is the high-risk chemistry of atmosphere
The tracking and inhibition in product source eliminate work and bring many difficulties.
Existing gas detecting system is only limitted to demarcate atmosphere high-risk chemical type and its concentration, measure, and
Composite measurement cannot be carried out to the distribution situation of the atmosphere high-risk chemical leakage information in leakage region and intuitively showed, it is difficult
To help commanding to formulate the Restrain measurement and crowd evacuation scheme of gas leakage source rapidly.
Summary of the invention
Based on this, it is necessary to it is directed in traditional technology, it cannot be to the atmosphere high-risk chemical leakage information in leak area
Distribution situation composite measurement and intuitively show, it is difficult to formulate rapidly atmosphere high-risk chemical source of leaks Restrain measurement with
The problem of formulating crowd evacuation scheme provides a kind of flexible, intuitive probe gas spatial distribution method.
A method of based on terahertz detection high-risk chemical, which comprises
The concentration distribution information of the atmosphere high-risk chemical of current detecting location is obtained by detection device；
According to the atmosphere high-risk chemical concentration distribution acquisition of information target acquisition position, detection device is driven to advance
To the target acquisition position；
The atmosphere high-risk chemical concentration distribution information of the target acquisition position is obtained again；
Next target acquisition position is obtained according to the atmosphere high-risk chemical concentration distribution information of the target acquisition position
It sets, until the coordinate of next target acquisition position is overlapped with the coordinate of any detecting location before, obtains multiple groups detection position
The atmosphere high-risk chemical concentration distribution information set；
The Gas concentration distribution information of the multiple groups detecting location is sent to data processing system to handle, is obtained
Atmosphere high-risk chemical spatial distribution image information.
The detection device is terahertz time-domain system in one of the embodiments,.
The terahertz time-domain system is transmission-type terahertz time-domain system in one of the embodiments,.
The acquisition methods of next target acquisition position include: in one of the embodiments,
All concentration distribution information acquired in three-dimensional coordinate are ranked up, concentration highest in three-dimensional coordinate is obtained
The direction of point is the direction of travel of the driving device；
The driving device marches to next target acquisition position along the direction of travel.
It is described to all concentration distribution information acquired in the three-dimensional space of current location in one of the embodiments,
Be ranked up, including by Bubble Sort Algorithm to all concentration distribution information acquired in the three-dimensional space of current location into
Row sequence.
It is described in one of the embodiments, to be visited according to the atmosphere high-risk chemical concentration distribution information acquisition target
Location is set, and detection device is driven to march to the target acquisition position further include:
To the concentration information averaged in the different height of current location, obtaining the highest height of mean concentration is mesh
Absolute altitude degree；
The concentration of different angle in the highest height of the mean concentration is ranked up, the mean concentration is obtained
The highest angle of concentration is the target angle of the driving device in highest height；
The detection device is driven to march to the target acquisition position according to the object height and target angle.
The concentration information by multiple groups a certain kind atmosphere high-risk chemical distribution transmits in one of the embodiments,
The step of being handled to data processing system, obtaining atmosphere high-risk chemical spatial distribution image information include:
Numerical value is sent by the concentration information that multiple groups a certain kind atmosphere high-risk chemical is distributed relative to three-dimensional coordinate
Fitting system carries out numerical fitting, obtains a certain atmosphere high-risk chemical concentration letter continuously distributed relative to three-dimensional coordinate
Breath；
The concentration information continuously distributed relative to three-dimensional coordinate is identified, a certain atmosphere high-riskization is obtained
Product spatial distribution map；
In one of the embodiments, the atmosphere high-risk chemical concentration distribution information according to the current location,
The atmosphere high-risk chemical concentration distribution information of the target acquisition position, obtains atmosphere high-risk chemical spatial distribution image
Later further include:
Different types of atmosphere high-risk chemical is detected respectively by multiple detection devices, is obtained a variety of
The gas compartment distributed image of variety classes gas；
Different types of atmosphere high-risk chemical distributed image is overlapped processing, obtains variety classes atmosphere
High-risk chemical spatial distribution superimposed image, and the variety classes atmosphere high-risk chemical spatial distribution superimposed image is defeated
Out.
The concentration information continuously distributed relative to three-dimensional coordinate is subjected to color mark in one of the embodiments,
Know.
A kind of computer readable storage medium, is stored thereon with computer program, which can when being executed by processor
The step of realizing any of the above embodiment.
Detailed description of the invention
Fig. 1 is the reflexive feedback system of Terahertz for the atmosphere high-risk chemical detection that one embodiment provides；
Fig. 2 is the structure chart of telescope support and cantilever that one embodiment provides；
Fig. 3 is the transmission-type terahertz time-domain system that one embodiment provides；
Fig. 4 is the method flow diagram for the terahertz detection atmosphere high-risk chemical concentration distribution that one embodiment provides；
Fig. 5 is the method flow diagram for the single high-risk chemical source of leakage of terahertz detection that one embodiment provides；
Fig. 6 is the method flow diagram that the judgement detection device that one embodiment provides reaches source of leaks；
Fig. 7 is multiple high-risk chemical source of leaks detection method flow charts that one embodiment provides；
Fig. 8 provides for one embodiment when detection tri- kinds of atmosphere high-risk chemicals of a, b, c, sets specific rotating shaft
Rotate the method flow diagram of the wicking height of angle and telescope support；
Fig. 9 is a certain atmosphere high-risk chemical concentration detection result distribution map that one embodiment provides；
Figure 10 is that a variety of atmosphere high-risk chemical concentration detection results that one embodiment provides are distributed stacking chart.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, right with reference to the accompanying drawings and embodiments
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, and
It is not used in the restriction present invention.
Referring to Fig. 1, providing a kind of reflexive feedback system of Terahertz of atmosphere high-risk chemical detection in one embodiment
1000, described device includes:
Detection device 100, the detection device 100 are used for atmospheric sounding high-risk chemical information.
Specifically, detection device 100 is and to obtain the high-risk chemistry of atmosphere for sampling to atmosphere high-risk chemical
The device of product Terahertz feature, atmosphere high-risk chemical information specifically includes atmosphere high-risk chemical concentration information and atmosphere is high
Danger chemical race category information.
Mechanic adjustment unit 110, the mechanic adjustment unit 110 is connect with the detection device 100, for adjusting
The height and orientation of detection device 100 are stated, to obtain the atmosphere high-risk chemical information of different height and orientation.
Mechanic adjustment unit 110 carries out pair the position of detection device 100 according to the instruction of processor by mechanical structure
It should adjust, including adjusting the height and orientation of detection device 100, be sat to change the three-dimensional of 100 stop places of detection device
It marks (x, y, z), including abscissa x, ordinate y and vertical coordinate z.Specifically, mechanic adjustment unit adjusts detection device 100
Three-dimensional coordinate, to obtain in three-dimensional space the atmosphere high-risk chemical concentration distribution under different three-dimensional coordinates, obtain (n, a,
B, c), including atmosphere high-risk chemical concentration n, abscissa a, ordinate b and vertical coordinate c.When detection device 100
In (x1,y1,z1) detect atmosphere high-risk chemical concentration distribution coordinate (n1,a1,b1,c1) when, then there is x1=a1,y1=b1,z1
=c1。
Moving bearing device 120, the moving bearing device 120 carries the mechanic adjustment unit 110, and drives institute
It states detection device 100 to move in space, to obtain the atmosphere high-risk chemical information of different location.
Wherein moving bearing device 120 can be mechanically connected with mechanic adjustment unit 110, and mechanic adjustment unit 110 is settable
In on moving bearing device 120, moved with the movement of moving bearing device 120.It is similar, mechanic adjustment unit 110 with
Detection device 100 is mechanically connected, and is moved with the movement of moving bearing device 120.Moving bearing device 120 passes through shifting
Dynamic mechanic adjustment unit 110 is carried out movement detector 100 and is moved in space, and moving bearing device 120 is for detection device
100 movement can be to move horizontally；Meanwhile mechanic adjustment unit 110 can adjust the height and orientation of detection device 100 simultaneously.
Processor 130, the processor 130 is for handling the high-risk chemistry of atmosphere that the detection device 100 is detected
Product information, and according to the processing result of atmosphere high-risk chemical information feedback, control the mechanic adjustment unit adjust it is high
Degree, orientation and the moving bearing device are mobile, and handle the atmosphere high-risk chemical information.
Processor 130 be information receive center, Information Analysis Center, feedback information generate center, information dispatching centre with
And control centre, it is the device for realizing the detection accuracy of atmosphere high-risk chemical detection system.
The moving bearing device includes cabinet 121 in one of the embodiments,；The mechanic adjustment unit installation
On the moving bearing device, the processor 130 is located in the cabinet 121.Specifically, mechanic adjustment unit can lead to
It crosses shaft 113 to connect with moving bearing device, shaft can rotate 360 °, so that mechanic adjustment unit be driven to carry out
360 ° of rotations.For example, shaft can rotate 360 ° in the horizontal direction, so that detection device 100 can be located
In different orientation, i.e., different (x, y) coordinates.Processor is placed in cabinet 121 in one of the embodiments, to processing
Device has protective effect.Specifically, the move mode of mobile bearing mode is unlimited, and moving bearing device 120 may include universal wheel
126, pulley and other device or method that moving bearing device movement may be implemented all may be used.
The processor 130 may include data processing module and control module, the number in one of the embodiments,
Operation according to processing module progress includes that sort operation, the source of leakage for carrying out to the atmosphere high-risk chemical information are sentenced
Disconnected operation, data fitting operation, image superposition operation, coordinate coincidence judge operation, and the control module is used for according to the number
The atmosphere high-risk chemical spatial distribution detection device 100 is issued according to the operation result of processing module and is instructed, and drives institute
Atmosphere high-risk chemical spatial distribution detection device 100 is stated to be moved.
In one embodiment, the reflexive feedback system detection device 100 of Terahertz of atmosphere high-risk chemical detection is terahertz
Hereby time domain system, including atmosphere high-risk chemical sampling room 1021.
In addition, Terahertz atmosphere high-risk chemical detection system 1000 further includes feedback and instruction transmission electric wire 122, use
In the detection result of reception detection device 100, and detection result is transmitted to processor 130, and processor 130 is exported
Control instruction passes to moving bearing device and mechanic adjustment unit, and to control, moving bearing device is mobile, adjusts mechanical adjustment
Device, such as the height of telescoping shoring column 113 etc..
Meanwhile Terahertz atmosphere high-risk chemical detection system 1000 may also include power device 124, the power dress
Setting 124 may be disposed in moving bearing device 120；The power device 124 can be battery, be Terahertz atmosphere high-riskization
Product detection system provides power.
The detection device 100 may include terahertz time-domain system, further, detection device 100 may include transmission-type too
Hertz time domain system, for being detected by THz wave to object.
Referring to Figure 2 together, the mechanic adjustment unit 110 includes telescope support 114 in one of the embodiments,
With cantilever 112, telescope support 114 has card slot 1141, and card slot 1141 is used to cantilever 112 being fixed on telescope support 114；
Spring 1142 is provided in card slot 1141, spring 1142 is changed by the vertical height that self-deformation controls cantilever, and then is controlled
Detection device height change.The telescope support is connect with the moving bearing device；It is stretched with described described 112 one end of cantilever
The connection of contracting bracket, the other end are connect with the detection device 100.
Optionally, the connection type of telescope support and cantilever is not limited to spring card slot connection, other can be realized flexible branch
Frame controls the connection type that cantilever carries out height change.
Also referring to Fig. 3, a kind of terahertz time-domain system of atmosphere high-risk chemical, the time domain system are provided
It include: laser generator 301, for generating pumping pulse and direct impulse；Delayer 307, for receiving laser generator
The 301 pumping pulse laser generated, and adjust the pumping pulse of the generation of laser generator 301 and the time delay of direct impulse.
Signal generator 302, for emitting terahertz signal；Terahertz detection device 303, for atmosphere high-riskization in environment
Product sampling detection；Signal receiver 304, for finishing receiving atmosphere high-risk chemical in high-risk chemical sampling room 1021
The terahertz signal of information detection；Signal processor 305 is obtained for being analyzed and processed to the terahertz signal received
Atmosphere high-risk chemical information.
In one embodiment, the laser generator 301 includes femtosecond laser 3011 and beam splitter 3012；The letter
Number generator 302 includes lens, for generating terahertz signal；The terahertz detection device 303 is high-risk to carry atmosphere
Sample chemicals 3031, the first off axis paraboloidal mirror 3032, the second off axis paraboloidal mirror 3033, third off axis paraboloidal mirror
3034, the 4th off axis paraboloidal mirror 3035.Wherein, first off axis paraboloidal mirror 3032 and the second off axis paraboloidal mirror
3033 are oppositely arranged, and the third off axis paraboloidal mirror 3034 is oppositely arranged with the 4th off axis paraboloidal mirror 3035.The signal
Receiver 304 includes lens, for receiving terahertz signal；The signal processor 305 includes lock-in amplifier 3051 and letter
Number processing unit 3052；
The femtosecond laser 3011 that femto-second laser issues in one of the embodiments, is divided into two beams by beam splitter 3012
Pulse, respectively pumping pulse and direct impulse.Wherein pumping pulse arrival delayer 307 enters after delayer 307
It is mapped in lock-in amplifier 3051；The terahertz pulse that wherein direct impulse and signal generator 302 generate successively through third from
Axis paraboloidal mirror 3034, the first off axis paraboloidal mirror 3032 are incident on atmosphere high-risk chemical sample 3031, high-risk to atmosphere
Sample chemicals 3031 are detected, and obtain detection result signal, then throw off axis through the second off axis paraboloidal mirror the 3033, the 4th
3035 arriving signal receiver 304 of object plane mirror.Delayer 307 adjusts the time delay between pumping pulse and direct impulse, from
And change the time that detection light reaches terahertz detector.Utilize different detection light arrival times, Terahertz electric field strength
The amount of changing with time can be measured.Signal processing apparatus 3052 carries out the Terahertz electric field strength amount of changing with time
Analysis and processing, such as Fourier transformation is carried out, transmission spectrum is obtained, gained transmission spectrum is analyzed to obtain atmosphere height
The type and concentration information of danger chemicals；
Atmosphere high-risk chemical sample 3031 is placed in atmosphere high-risk chemical sampling room in one of the embodiments,
In 1021 (not marking in figure), the atmosphere high-risk chemical sampling room 1021 in the terahertz time-domain system is in communication with the outside,
The terahertz time-domain system is used for the atmosphere high-risk chemical sample 3031 to atmosphere high-risk chemical sampling room 1021
It is detected, obtains the atmosphere high-risk chemical information.In traditional technology, by atmosphere high-risk chemical be placed in gas chamber into
Row test, but during being detected by gas chamber, will cause certain loss of THz wave, while the material of gas chamber
It also will cause certain property delayed of spectrum, to keep detection result inaccurate.
In toxic gas leakage scene or explosion scene, it is often not easy to gas chamber sampling, and needs to obtain real-time, true
Live atmosphere high-risk chemical type and concentration levels, carried out then detector is then needed to be placed directly in atmospheric environment
The measurement of contact.
Air humidity tester is also installed on the terahertz time-domain system probe in one of the embodiments,.Due to
Vapor is very strong for the absorption of Terahertz, therefore can choose use " making poor method " and eliminate vapor to detection result
Influence, detection gained Terahertz map is subtracted into the Terahertz map of the vapor of existing same concentration in database, from
And the Terahertz profile information of corresponding atmosphere high-risk chemical to be measured is obtained, and then judge high-risk atmosphere high-risk chemical
Type and concentration information.
Testing time 20ps is chosen in one of the embodiments, and the Terahertz of 1-2THz wave band surveys atmosphere
Examination, obtains map；By Terahertz pop one's head on subsidiary air humidity tester atmospheric humidity is tested, obtain air
Relative humidity is 5%；For relative air humidity when being respectively 20ps in 5%, sampling time, water is in 1~3THz in called data library
The absorption peak map of wave band；The map of measurement is subtracted into database map, characteristic peak map can be obtained；To characteristic peak map
In frequency and the peak height of fingerprint peaks carry out database and compare and calculate, the high-risk substance of atmosphere under real time environment can be obtained
Type and concentration.
Referring to Figure 4 together, a kind of high-risk chemical source of leaks detection method based on Terahertz, which comprises
S402 obtains the atmosphere high-risk chemical concentration distribution information of current location by detection device；
S404 according to the atmosphere high-risk chemical concentration distribution information acquisition target acquisition position, and drives detection to fill
It sets and marches to the target acquisition position；
S406 obtains the atmosphere high-risk chemical concentration distribution information of the target acquisition position again；According to the mesh
The atmosphere high-risk chemical concentration distribution information of mark detecting location obtains next target acquisition position；Obtain multiple groups detection position
The atmosphere high-risk chemical concentration distribution information set；
The atmosphere high-risk chemical concentration distribution information of multiple groups detecting location is sent at processing system by S408
Reason；Export atmosphere high-risk chemical spatial distribution image information.
The detection device is terahertz time-domain system and device in one of the embodiments,.
Specifically, THz wave is electromagnetic wave of the frequency in 0.l~10THz (wavelength is 3mm~30 μm) range.Too
With many special materials sufficiently effect can occur for hertz, therefore in terms of environmental monitoring, Terahertz is suitable for solid, liquid
The research of the electricity, acoustic properties of the media such as body, atmosphere high-risk chemical and fluid, it can also be used to pollutant monitoring, biology and
The quality of detection and the food industry of chemical substance controls.
THz wave has broadband property, and the frequency band of single terahertz-wave pulse can cover the terahertz from several hertz to tens
Hereby, detection device can by fourier transform infrared spectroscopy, microwave spectrum, far-infrared laser, non-linear frequency mixing technology,
The method of far red light grating spectrum and equally energy atmospheric sounding high-risk chemical information, detects detected object.Specifically
, the light source of terahertz time-domain spectroscopy is terahertz pulse of the pulsewidth in picosecond level, and temporal resolution can achieve skin
Second；Terahertz time-domain spectroscopy measurement is measured for the electric field to terahertz pulse, belongs to coherent measurement, not only includes vibration
The information of width, while including the information of phase, the refractive index of sample can be directly obtained；In addition, for some macromolecular atmosphere
High-risk chemical, the absorption peak obtained using the spectral line that THz wave obtains is more sharp, and line style overlapping is less, so that greatly
The discrimination of gas high-risk chemical is more easier.Particularly, many atmosphere high-risk chemicals have uniqueness in THz wave spectral coverage
Absorption line, can use terahertz time-domain spectroscopic technology and ingredient, the concentration etc. of atmosphere high-risk chemical measured；
Meanwhile terahertz light spectral technology can be used for measuring the absorption of heterogeneity in hybrid atmospheric high-risk chemical, and measure mixed
Close the chemical composition of atmosphere high-risk chemical and the concentration of each component, accuracy with higher.
Specifically, THz wave has good compared to other detection means in many dielectric materials and nonpolar liquid
Good penetrability, therefore THz wave can carry out perspective imaging to opaque object.Further, since the typical case of Terahertz
Wavelength much larger than the soot dust granule in air scale, these soot dust granules to suspend to the scattering of THz wave much smaller than pair
The scattering of other electromagnetic waves, therefore detection means can be made in more complicated site environment.
Specifically, THz wave has fingerprint spectrality, has absorption peak and the reflection of different frequency to different substances
Peak can efficiently and accurately demarcate the type of atmosphere high-risk chemical substance according to the existing finger print information of database；It simultaneously can
To judge the concentration of atmosphere high-risk chemical according to the feature of vibration amplitude.Optionally, judged according to the feature of vibration amplitude
The method of atmosphere high-risk chemical concentration include the size according to characteristic peak, the highest point according to characteristic peak amplitude it
Than being equal to the ratio between atmosphere high-risk chemical concentration or and other are able to reflect vibration amplitude and atmosphere high-risk chemical concentration is closed
The method of system.
Specifically, terahertz emission belongs to the scope of submillimeter wave, and photon energy and characteristic temperature are very low.One frequency
The energy for the photon that rate is 1THz is 4.1MeV, corresponds to 33 wave beams, characteristic temperature 48K, lower than various chemical bonds
Bond energy, and photon energy required for ionized biological tissue will usually reach 16eV, therefore far from making biological tissue or cell
Ionization, therefore harmful ionization reaction will not be caused, suitable for the occasion that explosive is diffused He the crowd is dense.
The terahertz time-domain system is transmission-type terahertz time-domain system in one of the embodiments,.Optionally too
Hertz time domain system is not limited to transmission-type, can also select reflective, differential type, ellipse inclined formula and can atmospheric sounding it is high
Other time domain systems of danger chemicals and high-risk substance probe.
The acquisition methods of target acquisition position described in step S404 include: in one of the embodiments,
All concentration distribution information acquired in three-dimensional coordinate are ranked up, concentration highest in three-dimensional coordinate is obtained
The direction of point is the direction of travel of the detection device；
The driving detection device marches to the target acquisition position along the direction of travel.
Specifically, the target acquisition position refers to, detection device determines next according to the detection result of current location
Walk the position that will be detected.Three-dimensional coordinate includes abscissa x, ordinate y and vertical coordinate z.It is described to institute in three-dimensional coordinate
All concentration distribution information obtained are ranked up, and are carried out from big to small to all concentration acquired in three-dimensional coordinate
Sequence, obtains the coordinate of the maximum point of concentration, i.e. the coordinate (x ', y ', z ') of target acquisition position.
It is described to all concentration distribution information acquired in the three-dimensional space of current location in one of the embodiments,
Be ranked up, including by Bubble Sort Algorithm to all concentration distribution information acquired in the three-dimensional space of current location into
Row sequence.
Specifically, described according to the atmosphere high-risk chemical concentration distribution information acquisition target acquisition position, and drive
Detection device marches to the target acquisition position, comprising:
S4041 is ranked up all concentration distribution information acquired in the three-dimensional space of current location, obtains three-dimensional
The direction of peak concentration in space, the direction of travel as the detection device；
S4042 drives the detection device to march to the target acquisition position to the direction of travel.
It is described to all concentration distribution information acquired in the three-dimensional space of current location in one of the embodiments,
Be ranked up, including by Bubble Sort Algorithm to all concentration distribution information acquired in the three-dimensional space of current location into
Row sequence.Optionally, the method being ranked up to all concentration distribution information acquired in the three-dimensional space of current location is unlimited
It further include simple selection sequence, Straight Insertion Sort, Shell sorting, heapsort, merger sequence, quicksort in bubble sort
And other can be realized the algorithm of sequence.
It is described in one of the embodiments, to be visited according to the atmosphere high-risk chemical concentration distribution information acquisition target
Location is set, and is driven detection device to march to the target acquisition position and be may also include that
S4041 ' equals the atmosphere high-risk chemical concentration information averaged in the different height of current location
The equal highest height of concentration is the object height z that detection device is advanced；
S4042 ' is ranked up the concentration of the different angle in the highest height of the mean concentration, obtains described flat
The highest angle of concentration is the target angle of the driving device in the highest height of equal concentration；
S4043 ' drives the detection device to march to the target acquisition according to the object height and target angle
Position.Specifically, the target angle is in a horizontal plane, it is reference with former direction of advance using detection device as origin
(i.e. using the vector angle of former direction of advance as 0 °), origin be directed toward target acquisition position vector and former direction of advance institute at
Angle.
In one of the embodiments, in step S408, multiple groups a certain kind atmosphere high-risk chemical can be distributed
Concentration information be sent to data processing system and handled.
In one of the embodiments, according to the atmosphere high-risk chemical concentration of the current location point in step S408
Cloth information, the atmosphere high-risk chemical concentration distribution information of the target acquisition position, output atmosphere high-risk chemical space point
The step of cloth image information atmosphere high-risk chemical includes:
S4081 sends the concentration information that multiple groups a certain kind atmosphere high-risk chemical is distributed relative to three-dimensional coordinate
Numerical fitting is carried out to numerical fitting system, it is continuously distributed relative to three-dimensional coordinate to obtain a certain atmosphere high-risk chemical
Concentration information；
The concentration information continuously distributed relative to three-dimensional coordinate is identified, obtains a certain atmosphere by S4082
High-risk chemical spatial distribution map.
In one of the embodiments, in step S4122, by the concentration continuously distributed relative to three-dimensional coordinate
Information carries out color identifier, such as high concentration region is identified with light colour, and low concentration region is indicated with dark colour, alternatively, with
Blue indicates a kind of atmosphere high-risk chemical, indicates another atmosphere high-risk chemical with red.
Optionally, the concentration information continuously distributed relative to three-dimensional coordinate is not limited to carry out color identifier, also
Can carry out words identification, picture identification and other be able to reflect the identification method of atmosphere high-risk chemical concentration information.
In one of the embodiments, the atmosphere high-risk chemical concentration distribution information according to the current location,
The atmosphere high-risk chemical concentration distribution information of the target acquisition position, obtains atmosphere high-risk chemical spatial distribution image
Later further include:
S4083 respectively detects different types of atmosphere high-risk chemical by multiple detection devices, obtains
To the spatial distribution image of a variety of variety classes atmosphere high-risk chemicals；
Different types of atmosphere high-risk chemical distributed image is overlapped processing, obtained not of the same race by S4084
Class atmosphere high-risk chemical spatial distribution superimposed image, and the variety classes atmosphere high-risk chemical spatial distribution is superimposed
Image output.
A kind of computer readable storage medium is also provided in one of the embodiments, is stored thereon with computer journey
Sequence, wherein when the program is executed by processor, it can be achieved that in any of the above-described embodiment the step of method.
Please refer to fig. 5, a kind of single high-risk chemical source of leaks detection method based on Terahertz, the method
Include:
S502 obtains the atmosphere high-risk chemical concentration distribution information of current location by detection device；
S504 according to the atmosphere high-risk chemical concentration distribution information acquisition target acquisition position, and drives detection to fill
It sets and marches to the target acquisition position；
S506 obtains the atmosphere high-risk chemical concentration distribution information of the target acquisition position, according to the mesh again
The atmosphere high-risk chemical concentration distribution information of mark detecting location obtains next target acquisition position, until next target
The atmosphere high-risk chemical concentration of detecting location is peak value, reaches S508 at atmosphere high-risk chemical source of leaks, is worked as according to described
Atmosphere high-risk chemical concentration distribution information, the concentration distribution information of the target acquisition position of front position, obtain atmosphere height
Danger chemicals spatial distribution image information.
It is wherein step S502, step S504, step S508 and S402, S404, S408, essentially identical, it is no longer superfluous herein
It states.
Particularly, S506 in one of the embodiments, when the atmosphere high-risk chemical of next target acquisition position is dense
When degree is peak value, reach at atmosphere high-risk chemical source of leaks.
The atmosphere high-risk chemical source of leaks is the position in a region, can set the phase of the detection of detection device
The distance of adjacent two detecting locations is a step-length.
In one embodiment, when the atmosphere high-risk chemical peak concentration point judgment method using the S4041,
When the method for S4042, atmosphere high-risk chemical source of leaks is using detection gained atmosphere high-risk chemical peak concentration point as origin
Using a step-length as the sphere of radius.
In one embodiment, described in being used when the judgment method of the atmosphere high-risk chemical peak concentration point
S4041 ', S4042 ' method when, atmosphere high-risk chemical source of leaks is that the gas concentration peak point in corresponding height is origin
Using a step-length as the border circular areas of radius.Optionally, atmosphere high-risk chemical leakage source region selection mode be not limited to
Upper two kinds, in varied situations, it can flexibly use multiple choices mode.
Please with reference to Fig. 6, a kind of single atmosphere high-risk chemical source of leaks detection method based on Terahertz is described
Method includes:
S602 obtains the atmosphere high-risk chemical concentration distribution information and peak value of current location by detection device；
S604 according to the atmosphere high-risk chemical concentration distribution information acquisition target acquisition position, and drives detection to fill
It sets and marches to the target acquisition position；
S606 obtains the atmosphere high-risk chemical concentration distribution information and peak value of the target acquisition position again, according to
The atmosphere high-risk chemical concentration distribution information and peak value of the target acquisition position obtain next target acquisition position, and
Driving detection device marches to next target acquisition position again；
S608, if the size relation between the peak value of multiple target acquisition positions meets preset condition, according to more
The peak value of a target acquisition position obtains the location information of atmosphere high-risk chemical source of leaks；
S610, according to the atmosphere high-risk chemical concentration distribution information of the current location, the target acquisition position
Atmosphere high-risk chemical concentration distribution information obtains atmosphere high-risk chemical spatial distribution image information.
Wherein S602, S604, S606, S610, with S502, S504 in specification, S506, S510, essentially identical, herein
It repeats no more；
Particularly, if the size relation between the peak value of multiple target acquisition positions in one of the embodiments,
Meet preset condition, then the position of atmosphere high-risk chemical source of leaks is obtained according to the peak value of multiple target acquisition positions
Information specifically includes:
The atmosphere for comparing continuous two target acquisition positions after the current location and the current location is high-risk
The peak value of chemical concentration；
If the peak value of the atmosphere high-risk chemical concentration of continuous two target acquisition positions is small after the current location
In the peak value of the atmosphere high-risk chemical concentration of the current location, then judge the current location for atmosphere high-riskization
Product source of leaks.
If the size relation in one of the embodiments, between the peak value of multiple target acquisition positions meets pre-
If condition, then had according to the location information that the peak value of multiple target acquisition positions obtains atmosphere high-risk chemical source of leaks
Body further include:
If the peak value of the atmosphere high-risk chemical concentration of the first aim detecting location after the current location is less than
The peak value of the atmosphere high-risk chemical concentration of the current location, and the second target after the current location detects position
The atmosphere high-risk chemical peak concentration set is greater than the atmosphere high-risk chemical peak concentration of the current location, then continues to compare
The peak value of the atmosphere high-risk chemical concentration of third target acquisition position after the current location and the present bit
Set the size of atmosphere high-risk chemical concentration；
If the peak value of the atmosphere high-risk chemical concentration of the third target acquisition position after the current location is less than
The peak value of the atmosphere high-risk chemical concentration of the current location, then the current location is that the atmosphere high-risk chemical is let out
Drain-source.
Referring to Figure 7 together, a method of multiple high-risk chemicals based on Terahertz reveal source detection, the side
Method includes:
S702 obtains the concentration distribution information of the high-risk chemical of current detecting location by detection device；
S704 obtains target acquisition position according to the high-risk chemical concentration distribution information, and driving detection device is advanced
To the target acquisition position；
S706 obtains the concentration distribution information of the target acquisition position again,
Next target acquisition position is obtained according to the high-risk chemical concentration distribution information of the target acquisition position,
When the detection device obtains all source of leaks of a certain high-risk chemical in search coverage, multiple groups detecting location is obtained
High-risk chemical concentration distribution information；
The Gas concentration distribution information of the multiple groups detecting location is sent to data processing system and handled by S708,
Obtain high-risk chemical spatial distribution image information.Step S602, S604 in wherein S702, S704, S708 and specification,
S608 corresponding steps are essentially identical, and details are not described herein.
Particularly, in one of the embodiments, when atmosphere high-risk chemical space exploration imaging method detection obtains
When obtaining all source of leaks of a certain atmosphere high-risk chemical in search coverage, the coordinate where the detection device is described
Terminal point coordinate.
Judge that the detection device obtains the high-risk chemistry of a certain atmosphere in search coverage in one of the embodiments,
The method of all source of leaks of product includes: to be obtained according to the atmosphere high-risk chemical concentration distribution information of the target acquisition position
To next target acquisition position, until the coordinate of the coordinate of next target acquisition position and any detecting location before
It is overlapped, then judges that the detection device obtains all source of leaks of a certain atmosphere high-risk chemical in search coverage.
In one of the embodiments, also referring to Fig. 8, it is described until the coordinate of next target acquisition position with
The coordinate of any detecting location before is overlapped, then it is high to judge that the detection device obtains a certain atmosphere in search coverage
The method of all source of leaks of chemicals of endangering includes:
It obtains the coordinate of each target acquisition position and stores in the processing system；
Processing system carries out data analysis to the coordinate of each target acquisition position got；
Target acquisition position before the coordinate for next target acquisition position that processing system detects and any one
When the coordinate set is overlapped；
Halt instruction is issued to detection device；
The detection device stops detection.
Also referring to Fig. 8, additionally provide in one of the embodiments a kind of based on terahertz detection toxic gas
Method includes:
S802, detection device 100 demarcate gas componant, determine tri- kinds of toxic gases of a, b, c in marked gas；
S804 measures the concentration of toxic gas a；
S8061 adjusts mechanic adjustment unit, and the runing rest for connecting shaft is made to rotate 0 °, 90 °, 180 °, 270 ° respectively；
S8062 makes telescope support increase 1m, 10m, 20m, 30m height respectively；
S808 measures the concentration data under different coordinates；Concentration data is ranked up by S809, determines detecting devices row
Into direction and height；
If processor issues halt instruction；All concentration datas are carried out numerical fitting relative to coordinate by S812；S814,
Continuous concentration data is transmitted back to headquarter and is imaged.
If processor does not issue halt instruction, repeatedly step S802, S804, S8061, S8062, S808, S809.
The step of repeating S802, S804, S8061, S8062, S808, S809, S810, S812, S814 measures toxic gas
B and c, measurement obtain toxic gas b, c concentration distribution information, then the concentration distribution matrix of toxic gas a, b, c is as follows:
By the respective concentration of toxic gas a, b, c according to sorting from large to small, as a23 > a13 > a33 > a43 > ... > a22 >
A12 > a32 > a42, it is known that somewhere concentration axyMiddle x represents certain height, and y represents certain angle direction, so that it is determined that 2 → 3 direction of coordinate
For the most fast direction of atmosphere high-risk chemical a increasing concen-trations, height 2 is the maximum height of toxic gas a concentration, and coordinate 4 is to have
The smallest height of poisonous gas a concentration；By feeding back electric wire 122, issues and instruct to universal wheel 126, make universal wheel along increasing concen-trations
Most fast direction, i.e., opposite -135 ° of directions are advanced.All data are collected, by processor 130, by discrete concentration
Numerical fitting is carried out relative to coordinate, to obtain gas a, b, c relative to the continuous concentration distribution of three-dimensional coordinate；
Also referring to Fig. 9, Fig. 9 is the concentration detection result distribution map of poison gas a, by that can be clearly seen than vitta,
Dark color indicates low concentration atmosphere high-risk chemical, and light color indicates high concentration atmosphere high-risk chemical, therefore light color aggregation position is
The higher position of poison gas a concentration is judged as the leakage source position of poison gas a, it is proposed that inhibits position for poison gas emphasis.Light color is to deeply
Color extending direction is judged as poison gas a descending concentrations direction, it is proposed that is crowd's escape route；Dark color is sentenced to light extending direction
Break as the concentration sharp increase direction of poison gas a, it is proposed that evade route for crowd's emphasis.
Also referring to Figure 10, the case where Figure 10 a, b two kind poison gas are distributed in space, as seen from the figure, poison gas b points
Cloth is in high-altitude, and for poison gas a in low latitude, situations such as this is to the density of gas itself and same day wind-force is related.According to different types of gas
The sprinkling of corresponding chemical treatment medicament can be effectively performed in the space distribution situation of body.Since low latitude poison gas is to people's
Life security influence is big compared with high-altitude poison gas, and judges that poison gas a concentration is big relative to poison gas b, therefore Ying You from shade
First handle the leakage of poison gas a.
It can be with the leakage situation of accurate judgement poison gas a and poison gas b, to help by intuitively showing for Fig. 9 and Figure 10
Poison gas Restrain measurement and crowd evacuation scheme are made in commanding.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to of the invention
Protection scope.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (7)
1. a kind of method based on the distribution of terahertz detection high-risk chemical, which is characterized in that the described method includes: passing through detection
Device obtains the atmosphere high-risk chemical concentration distribution information of current detecting location；
According to the atmosphere high-risk chemical concentration distribution acquisition of information target acquisition position, detection device is driven to march to described
Target acquisition position includes:
To the concentration information averaged in the different height of current location, obtaining the highest height of mean concentration is that target is high
Degree；
The concentration of different angle in the highest height of the mean concentration is ranked up, it is highest to obtain the mean concentration
The highest angle of concentration is the target angle of the detection device in height；
The detection device is driven to march to the target acquisition position according to the object height and target angle；It obtains again
The atmosphere high-risk chemical concentration distribution information of the target acquisition position；
Next target acquisition position is obtained according to the atmosphere high-risk chemical concentration distribution information of the target acquisition position, directly
Coordinate to next target acquisition position is overlapped with the coordinate of any detecting location before, obtains the big of multiple groups detecting location
Gas high-risk chemical concentration distribution information；
The Gas concentration distribution information of the multiple groups detecting location is sent to data processing system to handle, obtains atmosphere height
Danger chemicals spatial distribution image information.
2. the method according to claim 1, wherein the detection device is terahertz time-domain system.
3. according to the method described in claim 2, it is characterized in that, the terahertz time-domain system is transmission-type terahertz time-domain
System.
4. the method according to claim 1, wherein by multiple groups a certain kind atmosphere high-risk chemical distribution
The step of concentration information is sent to data processing system and is handled, and obtains atmosphere high-risk chemical spatial distribution image information packet
It includes:
Numerical fitting is sent by the concentration information that multiple groups a certain kind atmosphere high-risk chemical is distributed relative to three-dimensional coordinate
System carries out numerical fitting, obtains a certain atmosphere high-risk chemical concentration information continuously distributed relative to three-dimensional coordinate；
The concentration information continuously distributed relative to three-dimensional coordinate is identified, it is empty to obtain a certain atmosphere high-risk chemical
Between distribution map.
5. according to the method described in claim 4, it is characterized in that, the atmosphere high-risk chemical according to the current location
Concentration distribution information, the atmosphere high-risk chemical concentration distribution information of the target acquisition position, obtain atmosphere high-risk chemical
After spatial distribution image further include:
Different types of atmosphere high-risk chemical is detected respectively by multiple detection devices, is obtained a variety of not of the same race
The gas compartment distributed image of class gas；
Different types of atmosphere high-risk chemical distributed image is overlapped processing, obtains variety classes atmosphere high-riskization
Product spatial distribution superimposed image, and the variety classes atmosphere high-risk chemical spatial distribution superimposed image is exported.
6. according to the method described in claim 4, it is characterized in that, the concentration continuously distributed relative to three-dimensional coordinate is believed
Breath carries out color identifier.
7. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the program is held by processor
The step of any one of claim 1-6 the method is able to achieve when row.
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| PCT/CN2018/092436 WO2019114239A1 (en) | 2017-12-13 | 2018-06-22 | Terahertz detection method and system for highly hazardous chemical in atmosphere |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104280789A (en) * | 2014-10-29 | 2015-01-14 | 清华大学 | Locating method, locating device, treatment device and system for chemical leakage source |
| CN105300912A (en) * | 2015-09-16 | 2016-02-03 | 上海安允科技有限公司 | System for monitoring a variety of dangerous gases based on absorption spectrum remote sensing technology |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103575675A (en) * | 2013-10-30 | 2014-02-12 | 中国科学院安徽光学精密机械研究所 | Onboard multi-angle region pollution distribution scanning detection device |
| CN106338484A (en) * | 2015-07-09 | 2017-01-18 | 王霆 | Apparatus for monitoring environment gas information by unmanned plane infrared remote sensing and application thereof |
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| CN105300912A (en) * | 2015-09-16 | 2016-02-03 | 上海安允科技有限公司 | System for monitoring a variety of dangerous gases based on absorption spectrum remote sensing technology |
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