CN205720695U - A kind of many rotor flyings formula nucleic detection identifier - Google Patents
A kind of many rotor flyings formula nucleic detection identifier Download PDFInfo
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- CN205720695U CN205720695U CN201620006325.5U CN201620006325U CN205720695U CN 205720695 U CN205720695 U CN 205720695U CN 201620006325 U CN201620006325 U CN 201620006325U CN 205720695 U CN205720695 U CN 205720695U
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Abstract
The utility model discloses a kind of many rotor flyings formula nucleic detection identifier, this identifier includes: nuclear radiation spectrometer unit, many rotor flyings unit and terrestrial contr；Described terrestrial contr wirelessly connects described nuclear radiation spectrometer unit；Described nuclear radiation spectrometer unit includes nuclide identification detector, front end reading circuit and numeral multichannel pulse scope-analyzer, laser altimeter and spectrometer data wireless transmission unit；Described nuclide identification detector is grid structure formula cadmium-zinc-teiluride nuclear radiation detector altogether；This cadmium-zinc-teiluride nuclear radiation detector has two passive electrodes, and by charge sensitive amplifier, two electrode differential signal outputs is connected to numeral multichannel pulse scope-analyzer；Described laser altimeter is connected with described numeral multichannel pulse scope-analyzer；In described many rotor flyings unit, multi-rotor aerocraft is built-in with GP S receptor.
Description
Technical field
This utility model relates to nucleic detection identifier, particularly relates to a kind of many rotor flyings formula nucleic detection identifier.
Background technology
Quick-moving type nuclear radiation measurement technology, from the difference of actinometry carrier, can be divided into fixed-wing formula (helicopter) spoke
Penetrate measurement, ground on-vehicle spectral measurement, machine carriage actinometry, unmanned plane actinometry, the measurement of many rotor unmanned aircrafts.
1, wherein fixed-wing formula (helicopter) actinometry generally uses fixed-wing formula aircraft or helicopter to carry substantially
Long-pending NaI (Tl) crystal and high-resolution HpGe are as detector, and this metering system is mainly in order to wide area measurement, flight speed
Degree is fast, and spatial resolution is relatively low, and NaI (Tl) crystal energy resolution is low, nuclide identification weak effect, and especially centering, mental retardation are penetrated
The measurement effect of line is very poor (such as131I,137CS), although and high purity germanium detector energy resolution is high, but because of small volume, visit
Survey efficiency is low, and cannot working and room temperature for a long time, cost is the highest (to be measured occasion for nuclear emergency and typically requires ten million yuan
Level).Fixed-wing each flight measurement of helicopter be required for proposing aviation application, each flight cost is high, therefore conduct
It is high that daily nuclear power station monitoring runs the cost brought, and feasibility is little, currently mainly has the PICO company of the U.S., France
RMD and domestic Chengdu University of Technology, Hebei aerial survey Remote sensing centre, China Aero Geophysical Survey & Remote Sensing Center for Land and Resources can provide
Pertinent instruments, is therefore unsatisfactory for the demand that the daily monitoring of nuclear facilities of nationwide from now on runs.
2, ground on-vehicle spectral measurement mode is generally provided with NaI (TL) detector of 1-2 bar 4L, energy at offroad vehicle top
Amount resolution is low, and nuclide identification effect is undesirable, and is easily blocked by the building in surrounding, therefore is less compliant in multiple
Carry out actinometry under heterocycle border, and offroad vehicle volume is bigger under complex environment, it is also possible to cannot be introduced into, when the core spoke revealed
Penetrate the top being present in facility, around have shielding of building then ground on-vehicle energy disperse spectroscopy helpless.Currently mainly have external
SAIC company, domestic Xibei Nuclear Techn Inst, China Atomic Energy Research Institute, Chengdu University of Technology have Related product.
3, machine carriage metering system.Although machine carriage small volume can enter some complex environments, but can not do district
The actinometry in territory, is relatively more suitable for entering interior of building and measures, and cruising time is shorter, mechanical arm, walking mechanism
Design have high requirement, otherwise cannot tackle the complex environment of interior of building, and robot car is generally only lift-launch
Easy radiation dose measurement device, less lift-launch can realize the actinometry unit of nuclide identification, mainly in order to radioactive source
Dispose, therefore price low often seventy or eighty ten thousand, height is the most millions of, and its maintenance cost is the highest, is only used for the spoke of simple function
Penetrate measurement occasion.
4, unmanned plane actinometry mode.There are corresponding measurement system in the current U.S. of which, Japan with China.Unmanned
Although the loading capacity of machine is not so good as fixed wing airplane and helicopter, but because of can be unattended, reduces the danger of measurement, and can
With the longer time that works, currently mainly in order to rainbow-3 unmanned plane aviation of resource exploration such as China Geological Survey Bureau exploitation
Measurement system, this system is equipped with the measurement apparatus such as Airborne Radioactivity, electromagnetism, gravity, flies primarily to make up fixed-wing formula
The deficiency that row is measured, improves safety, improves the time measured continuously, but also sacrifices loading capacity, makes detection efficient drop
Low, but also as flown in fixed-wing, with high costs, it is impossible to measurement of hovering for a long time.
5, many rotor unmanned aircrafts are measured.This metering system can arbitrarily hover over surrounding and the overhead of nuclear facilities, i.e.
Can realize targetedly summit measure, it is also possible to feasible region patrol survey.The usual small volume of many rotor unmanned aircrafts is only
For 60cm*60cm*25cm, compact, it is convenient for carrying, the monitoring of three-dimensional radioactivity can be constituted with vehicle-mounted survey monitor complementation,
The most alternative robot enters the environment of some circumstance complications and quickly determines position and the rank of nuclear accident.Search carrying out radioactive source
Suo Shi, vehicle-mounted energy disperse spectroscopy is often because volume is big, and radiation detector cannot depart from body movement, and there is more blind spot,
Search for the inefficient of radioactive source, and coordinate upper many rotor unmanned aircrafts, then can realize all standing formula and measure, there is excellence
Measurement effect.Main contrast is as follows:
Summary of the invention
For solving above-mentioned technical problem, the purpose of this utility model is to provide the detection of a kind of many rotor flyings formula nucleic and identifies
Instrument.
The purpose of this utility model is realized by following technical scheme:
A kind of many rotor flyings formula nucleic detection identifier, including: nuclear radiation spectrometer unit, many rotor flyings unit and ground
Face control unit；Described terrestrial contr wirelessly connects described nuclear radiation spectrometer unit；
Described nuclear radiation spectrometer unit includes that nuclide identification detector, front end reading circuit divide with numeral multichannel pulse scope
Parser, laser altimeter and spectrometer data wireless transmission unit；
Described nuclide identification detector is grid structure formula cadmium-zinc-teiluride nuclear radiation detector altogether；This cadmium-zinc-teiluride nuclear radiation detection
Utensil has two passive electrodes, and by charge sensitive amplifier, two electrode differential signal outputs is connected to digital many autolytes
Rush amplitude analyzer；
Described laser altimeter is connected with described numeral multichannel pulse scope-analyzer；
In described many rotor flyings unit, multi-rotor aerocraft is built-in with gps receiver.
Compared with prior art, one or more embodiment of the present utility model can have the advantage that
1, by the combination of multi-rotor aerocraft Yu nuclide identification instrument, complete low latitude radioactive nucleus emergence measuring body is built
System.
2, solving the deficiency of existing mobile radioactive liquid monitoring technology, the achievement of this problem can be with existing multiple radioactivity
Measuring method forms complementation, constitutes the radioactivity monitoring of three-dimensional non-blind area.
3, solve current various city, street, complicated Environment near Nuclear Facilities lack the quickest radiometry method
Problem.
4, the problem solving to lack nuclear emergency low latitude radiometry technological means with instrument and equipment.
5, the radioactivity plume solving the leakage of current nuclear facilities is measured inaccurate, especially middle low energy ray and the spy of nucleic
Survey the problem that identification ability is weak.
Accompanying drawing explanation
Fig. 1 is that many rotor flyings formula nucleic detects identifier structural representation；
Fig. 2 is nuclide identification and charting software module structure schematic diagram.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with embodiment and accompanying drawing pair
This utility model embodiment is described in further detail.
It is illustrated in figure 1 many rotor flyings formula nucleic detection identifier structure, including: nuclear radiation spectrometer unit, many rotors
Flying unit and terrestrial contr；Described terrestrial contr wirelessly connects described nuclear radiation spectrometer unit；
Described nuclear radiation spectrometer unit includes that nuclide identification detector, front end reading circuit divide with numeral multichannel pulse scope
Parser, laser altimeter and spectrometer data wireless transmission unit；
Described nuclide identification detector is grid structure formula cadmium-zinc-teiluride nuclear radiation detector altogether；This cadmium-zinc-teiluride nuclear radiation detection
Utensil has two passive electrodes, and by charge sensitive amplifier, two electrode differential signal outputs is connected to digital many autolytes
Rush amplitude analyzer；
Described laser altimeter is connected with described numeral multichannel pulse scope-analyzer；
In described many rotor flyings unit, multi-rotor aerocraft is built-in with gps receiver.
Nuclear radiation spectrometer unit is low-power consumption lightweight nuclear radiation spectrometer unit: wherein, nuclide identification detector parts: adopt
With cadmium-zinc-teiluride, lanthanum bromide and three kinds of nuclear radiation detectors of bromination cerium as the sensitive detection parts of spectrometer units.Wherein cadmium-zinc-teiluride
Compound semi-conducting material has the ratio higher energy resolution of NaI (Tl) scintillator and higher detection efficient, its energy resolution
Rate up to 0.1-3.0%, is only second to HpGe semiconductor detector for (0.662MeV of 137Cs), detects under same volume
Efficiency is 245% relative to NaI scintillator, is directly ionized into electron hole pair, directly electricity inside detector due to detected ray
Lotus is collected, therefore quantum efficiency is far above NaI scintillator, belongs to Direct-type detector.But the hole current-carrying due to Cdl-x_Znx_Te
Sub-life-span mobility is relatively low, there is hole smearing, therefore cannot ensure energy resolution during large volume, therefore the present invention uses altogether
The tellurium-zinc-cadmium detector of grid structure, can overcome hole smearing, it is ensured that under 1 cubic centimeter volume, energy resolution can
It is better than 3.0%.The present invention also can match the detector such as lanthanum bromide, bromination cerium, in order to be suitable for the design of flight formula nuclide identification instrument
Need, have employed array SiPM device and substitute traditional photomultiplier tube realization to lanthanum bromide, the optical signal of bromination cerium scintillator
Detection.
Front end reading circuit is with numeral multichannel pulse scope-analyzer: flat grate formula tellurium-zinc-cadmium detector has two collections altogether
Electrode, therefore poor designs fraction charge sensitive amplifier of the present invention outputs signals to numeral after the electric charge difference of two electrodes being collected
Multichannel pulse scope-analyzer.Numeral multichannel pulse scope-analyzer will be put before differential charge after output signal pre-amplification by a high speed
Analog-digital converter is discrete for digital quantity, and nuclear radiation spectrometer element circuit is integrated in fpga chip, and arranges in fpga chip
Numeral is had to rise time discriminator.By two-channel digital trapezoidal shaping wave filter shaping filter inside fpga chip, lead to soon
Road signal is as time-base signal, and slow channel signal is as range signal, and digit pulse amplitude can accurately estimate and deduct numeral base
Line, and obtain pulse amplitude size.In order to overcome hole smearing, the above-mentioned FPGA indoor design numeral rise time screens
Device, is obtained the relation curve of rise-time value and speed channel amplitude ratio, is stored in FPGA internal storage by test experiment,
Then transfer this parameter value when real time execution, thus screen in the numeral rise time can be realized, thus improve cadmium-zinc-teiluride further
The energy resolution of detector.SiPM coupled modes conversion light letter is have employed for lanthanum bromide and bromination cerium detector this patent
Number, and use single pass charge sensitive amplifier that the current pulse signal amplification of SiPM is converted to voltage pulse signal.
Low pressure and high voltage power supply: be converted to the different size of low-tension supply of multichannel by battery supply and spectrometer units electricity is provided
Road works, and the grid bias power supply using HF switch boosting mode to obtain about 2500V provides tellurium-zinc-cadmium detector, lanthanum bromide, bromine
Change the required bias of the nuclear radiation detectors such as cerium.
Miniaturization laser altimeter: choose mini legerity type laser altimeter conventional on unmanned plane and realize accurate height
Measure.In order to realize high accuracy three-dimensional radioactive dosage scattergram, Nuclear analysis figure, it is desirable to have three-dimensional position letter accurately
Breath, wherein X, Y coordinate information can be obtained by the built-in GPS of multi-rotor aerocraft, and the elevation information error of GPS is relatively big, therefore choosing
Select laser altimeter and realize elevation carrection.
Spectrometer data wireless transmission unit designs: in order to not affect the radio communication of multi-rotor aerocraft self, uses solely
Vertical low-power consumption 2.4G communication technology realizes issuing and ground control centre control command of nuclear radiation spectrometer unit gamma-spectrometric data
Upload.
Above-mentioned many rotor flyings unit includes flight assembly and peripheral cell assembly；Described flight assembly comprises six axle flights
Skeleton, brushless electric machine, electricity mode transfer block and fly control module；Described peripheral cell comprise GPS, minisize pick-up head, five groups regard
Feel avoiding obstacles by supersonic wave parts and wireless communication unit；
Described terrestrial contr includes wireless receiving transmitter, many rotor flyings TT & C software module, nuclear radiation spectrometer
Software model and nuclide identification and charting software module.
Wireless receiving transmitter design: owing to multi-rotor aerocraft and spectrometer units each use independent radio communication,
Therefore terrestrial contr is provided with the wireless receiving transmitter that two sets are independent, uses 2.4G High Bit-rate Wireless Data Communication mode,
Highest communication distance is up to 1-2 kilometer, and highest communication speed is up to 54Mbps, it is achieved quasi real time obtain video image information and core
Radiation spectrometer spectral line data.
Many rotor flyings TT & C software module designs: this software module realizes various the most distant to multi-rotor aerocraft
Control, and realize obtaining in real time the three dimensional local information of multi-rotor aerocraft, video image information etc..
Nuclear radiation spectrometer software model designs: this software module realizes realizing aerial nuclear radiation spectrometer unit far
Journey manipulates, and realizes the real-time download of spectral line.
Nuclide identification and charting Software Module Design: according to the nuclide identification standard of International Atomic Energy Agency, at software mould
The internal built-in 4 kinds of nuclide library of block, 30 kinds of nucleic altogether, and design perfect nuclide identification algorithm, first warp according to this international standard
After crossing the pretreatment (smooth, peak-seeking) of spectrum curve, it is achieved nuclide identification.Except nuclide identification, the present invention also needs to identify
Nucleic, the radioactive dosage information detected and three-dimensional coordinate information, the spectral line data issued by aerial spectrometer units are with three-dimensional
Coordinate information, surface structures material object picture combine composition five dimension figures (as shown in Figure 2), quickly dispose for Nuclear Accident Emergency
The most favourable technical support is provided.
Although the embodiment disclosed by this utility model is as above, but described content is only to facilitate understand this practicality
Novel and the embodiment that uses, is not limited to this utility model.Skill in any this utility model art
Art personnel, on the premise of without departing from the spirit and scope disclosed by this utility model, can be in the formal and details implemented
On make any amendment and change, but scope of patent protection of the present utility model, still must be defined with appending claims
In the range of standard.
Claims (2)
1. the nucleic of rotor flying formula more than kind detection identifier, it is characterised in that described identifier includes: nuclear radiation spectrometer list
First, many rotor flyings unit and terrestrial contr；Described terrestrial contr wirelessly connects described nuclear spectrum
Instrument unit；
Described nuclear radiation spectrometer unit includes nuclide identification detector, front end reading circuit and numeral multichannel pulse amplitude analysis
Device, laser altimeter and spectrometer data wireless transmission unit；
Described nuclide identification detector is grid structure formula cadmium-zinc-teiluride nuclear radiation detector altogether；This cadmium-zinc-teiluride nuclear radiation detection utensil
There are two passive electrodes, and by charge sensitive amplifier, two electrode differential signal outputs are connected to numeral multiple tracks pulse width
Degree analyzer；
Described laser altimeter is connected with described numeral multichannel pulse scope-analyzer；
In described many rotor flyings unit, multi-rotor aerocraft is built-in with gps receiver.
Many rotor flyings formula nucleic the most as claimed in claim 1 detection identifier, it is characterised in that described nuclear radiation spectrometer list
Unit's circuit is integrated in fpga chip, and is provided with numeral rising time discriminator in fpga chip.
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| CN201620006325.5U CN205720695U (en) | 2016-01-05 | 2016-01-05 | A kind of many rotor flyings formula nucleic detection identifier |
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| CN201620006325.5U CN205720695U (en) | 2016-01-05 | 2016-01-05 | A kind of many rotor flyings formula nucleic detection identifier |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108169788A (en) * | 2017-11-27 | 2018-06-15 | 中核控制系统工程有限公司 | A kind of multipurpose gamma ray spectrometer based on Radio Transmission Technology |
| CN108226990A (en) * | 2016-12-12 | 2018-06-29 | 林桦 | A kind of radioactive detection methods based on multi-rotor aerocraft |
| CN108267769A (en) * | 2017-01-03 | 2018-07-10 | 日之阳（北京）仪器制造有限公司 | A kind of radiological measuring system based on multi-rotor aerocraft |
| CN108267771A (en) * | 2016-12-30 | 2018-07-10 | 日之阳（北京）仪器制造有限公司 | A kind of radiological measuring system based on multi-rotor aerocraft |
| CN108267772A (en) * | 2016-12-30 | 2018-07-10 | 日之阳（北京）仪器制造有限公司 | A kind of radiological measuring system based on multi-rotor aerocraft |
| CN109490942A (en) * | 2018-12-03 | 2019-03-19 | 天津华放科技有限责任公司 | One kind being based on multi-rotor unmanned aerial vehicle flight formula nuclide identification survey meter |
| CN109581458A (en) * | 2018-12-14 | 2019-04-05 | 中国人民解放军第二军医大学 | Nuclear radiation based on unmanned plane sources system |
| CN110210739A (en) * | 2019-05-22 | 2019-09-06 | 雷恩友力数据科技南京有限公司 | A kind of nuclear radiation detection method and system based on artificial intelligence |
| CN110488341A (en) * | 2019-09-06 | 2019-11-22 | 江西核工业测绘院 | A kind of integrated laser surveys high unmanned plane spectral measurement system |
| CN110554422A (en) * | 2019-09-29 | 2019-12-10 | 中国医学科学院放射医学研究所 | full artificial intelligence system based on many rotor unmanned aerial vehicle flight type nuclide identification appearance |
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2016
- 2016-01-05 CN CN201620006325.5U patent/CN205720695U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108226990A (en) * | 2016-12-12 | 2018-06-29 | 林桦 | A kind of radioactive detection methods based on multi-rotor aerocraft |
| CN108267771A (en) * | 2016-12-30 | 2018-07-10 | 日之阳（北京）仪器制造有限公司 | A kind of radiological measuring system based on multi-rotor aerocraft |
| CN108267772A (en) * | 2016-12-30 | 2018-07-10 | 日之阳（北京）仪器制造有限公司 | A kind of radiological measuring system based on multi-rotor aerocraft |
| CN108267769A (en) * | 2017-01-03 | 2018-07-10 | 日之阳（北京）仪器制造有限公司 | A kind of radiological measuring system based on multi-rotor aerocraft |
| CN108169788A (en) * | 2017-11-27 | 2018-06-15 | 中核控制系统工程有限公司 | A kind of multipurpose gamma ray spectrometer based on Radio Transmission Technology |
| CN109490942A (en) * | 2018-12-03 | 2019-03-19 | 天津华放科技有限责任公司 | One kind being based on multi-rotor unmanned aerial vehicle flight formula nuclide identification survey meter |
| CN109581458A (en) * | 2018-12-14 | 2019-04-05 | 中国人民解放军第二军医大学 | Nuclear radiation based on unmanned plane sources system |
| CN110210739A (en) * | 2019-05-22 | 2019-09-06 | 雷恩友力数据科技南京有限公司 | A kind of nuclear radiation detection method and system based on artificial intelligence |
| CN110210739B (en) * | 2019-05-22 | 2021-10-19 | 雷恩友力数据科技南京有限公司 | Nuclear radiation detection method and system based on artificial intelligence |
| CN110488341A (en) * | 2019-09-06 | 2019-11-22 | 江西核工业测绘院 | A kind of integrated laser surveys high unmanned plane spectral measurement system |
| CN110554422A (en) * | 2019-09-29 | 2019-12-10 | 中国医学科学院放射医学研究所 | full artificial intelligence system based on many rotor unmanned aerial vehicle flight type nuclide identification appearance |
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