CN205720716U - Sweep mechanism and there is the safety check instrument of this sweep mechanism - Google Patents
Sweep mechanism and there is the safety check instrument of this sweep mechanism Download PDFInfo
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- CN205720716U CN205720716U CN201620359265.5U CN201620359265U CN205720716U CN 205720716 U CN205720716 U CN 205720716U CN 201620359265 U CN201620359265 U CN 201620359265U CN 205720716 U CN205720716 U CN 205720716U
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- millimeter wave
- wave transceiving
- anneta module
- scanning area
- predetermined scanning
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Abstract
This utility model belongs to rays safety detection apparatus field, particularly relates to sweep mechanism and has the safety check instrument of this sweep mechanism.Millimeter wave transceiving Anneta module arranges dustproof membrane, the signal end seal isolation of millimeter wave transceiving antenna element is realized dust-proof, compared with whole millimeter wave transceiving Anneta module is sealed by this sweep mechanism and existing safety check instrument configuration arc lucite, simple in construction, the maintenance of safety check instrument, more convenient when safeguarding, cost reduces.Millimeter wave transceiving antenna element launch millimeter wave with when receiving millimeter wave, millimeter wave need not move through lucite and through dustproof membrane, less to millimeter-wave signal decay, improve safety check instrument three-dimensional imaging effect.
Description
Technical field
This utility model belongs to rays safety detection apparatus field, particularly relates to sweep mechanism and has the peace of this sweep mechanism
Inspection instrument.
Background technology
The frequency of millimeter wave is 30GHz to 300GHz (wavelength is from 1mm to 10mm), at Practical Project
In application, often the low end frequency of millimeter wave is dropped to 26GHz.In electromagnetic spectrum, the position of millimeter-wave frequency
Put between infrared and microwave.Compared with infrared, millimeter wave has the ability of all weather operations and can use
Under the adverse circumstances such as flue dust, cloud and mist.Compared with microwave, wavelength is short, bandwidth, has the most wide profit
It is the typical feature of millimeter wave by space and propagation characteristic in an atmosphere.
Millimeter wave mainly has a following feature specifically:
1. precision is high, and millimetre-wave radar is easier to obtain narrow wave beam and big absolute bandwidth, millimetre-wave radar
System Anti-amyloid-β antibody ability is higher.
2., in Doppler radar, the Doppler frequency resolution of millimeter wave is high.
3., in millimeter wave imaging system, millimeter wave is sensitive to the shape and structure of target, difference metal target and
The ability of background environment is strong.The image resolution ratio obtained is high, therefore can improve the identification to target and detection energy
Power.
4. millimeter wave can penetrate plasma.
5., compared with iraser, millimeter wave is affected little by extreme natural environment.
6. millimeter-wave systems volume is little, lightweight, compares with microwave circuit, and millimetre-wave circuit size wants little very
Many, therefore, millimeter-wave systems is more easy of integration.
The character of these uniquenesses imparts the wide application prospect of millimeter-wave technology just.Especially in lossless inspection
Survey and field of safety check.
In the mm-wave imaging early stage of development, millimeter wave imaging system all uses single pass mechanical scanning system,
This imaging system simple in construction, but sweep time is long.In order to shorten sweep time, Millivision
Company have developed Veta125 imager, this imager except have transmitting scanning system in addition to, the also array of 8 × 8
Reception mechanism.Trex company still further developed a set of PMC-2 imaging system, the antenna list in this imaging system
Unit have employed the technology of 3mm phased array antenna.It is 84GHz that PMC-2 imaging system have employed mid frequency
Millimeter wave.Lockheed Martin company also have developed a set of focal-plane imaging array imaging system, and it is adopted
The mid frequency of millimeter wave be 94GHz.TRW Ltd. (US) One Space Park, Redondo Beach CA 90278 U.S.A. have developed a set of passive mm-wave imaging system
System, the mid frequency of the millimeter wave that this cover system uses is 89GHz.Present stage in mm-wave imaging field,
Mm-wave imaging achievement in research is concentrated mainly on northwest Pacific laboratory (Pacific Northwest National
Laboratory).Mc Makin in this laboratory et al., develops a set of 3D hologram image scanning system,
The scan mechanism of this set imaging system is to scan based on cylinder, and this cover system has been realized in millimeter wave
Commercialization as system.This imaging system uses Active Imaging mechanism, is obtained by Holographic Algorithm inverting
The three-dimensional millimeter-wave image of target.Technique has authorized L-3Communications and Save View
Company limited.Current northwest Pacific laboratory is just being devoted to the exploitation of the millimeter wave imaging system of higher frequency
Develop.In addition to laboratory presented hereinbefore and company, in the country such as Britain, the U.S., also there is a lot of scientific researches
Institutes and enterprise take part in the research of mm-wave imaging technology.Naval of ground force Air Force Research Laboratory such as the U.S.
With the universities such as company and Delaware, Arizona such as naval coastal base, the Reading university of Britain,
Durham university and Farran company etc..In addition to Great Britain and America state, the microwave of Germany and Radar Research Establishment
(Microwave and Radar Institute) and the Aviation Center (German Aerospace Center) of Germany
Also there is the research participating in mm-wave imaging technology.The ICT center of Australia, the NEC Corporation etc. of Japan
There is the report of relevant mm-wave imaging achievement in research.
Mm-wave imaging system is broadly divided into millimeter wave Active Imaging and millimeter wave imaging and passive imaging.This passive milli
The advantage of metric wave imaging system is relatively simple for structure, it is achieved cost is relatively low, shortcoming be exactly imaging time too
Long, poor imaging resolution.Along with raising and the development of millimetric wave device technology of millimetric wave device level,
Millimeter wave Active Imaging starts more and more to be paid attention to.In millimeter wave Active Imaging, actively synthesize hole
Footpath imaging and actively holographic imaging are main imaging systems.The method of millimeter wave holographic imaging is derived from optics
Holographic method, millimeter wave holographic imaging utilizes the relevant principle of electromagnetic wave, first launches antenna height to be launched
Stable millimeter-wave signal, reception antenna accepts the transmitting signal of each point in target and by echo-signal with high
The reference signal that degree is concerned with carries out Coherent processing, extracts amplitude and the phase information of echo-signal, thus obtains
Emission characteristics on impact point, finally can be obtained by scene by the method for data and image procossing
Target millimeter-wave image.The millimeter-wave image good resolution that millimeter wave actively holographic imaging obtains, then with machine
Tool scanning matches and is substantially shorter imaging time, can realize through engineering approaches, so millimeter wave holographic imaging is special
It is suitable for millimeter wave short range Active Imaging.
Along with International Terrorism form is severe, millimeter wave active circular scan 3D hologram imaging human body safety check instrument
With features such as its penetrance, noncontact, fanout free region, detection speed are fast, be applied to the most abroad airport,
The artificial abortion compact districts such as railway station, it is achieved the article under covering human body medicated clothing realize non-undressing, contactless three
Dimension holographic imaging detection；It can realize detection to metal and non-metal article, including gun, cutter, drugs,
Liquid, chip etc..
The three-dimensionals using millimeter wave active cylindrical array rotation sweep become imaging skill entirely the most in the world
Art, i.e. use the millimeter wave of array to launch, reception antenna module to obtain body scans information, its millimeter
Ripple dual-mode antenna module is numerous, and involves great expense, it is necessary to it is carried out proofing dust and protecting, to avoid dust accumulation
Precise part is caused damage.Referring to Fig. 1, safety check instrument of the prior art, by millimeter wave transceiving antenna
Module 300 entirety is positioned over one and seals in space, and this sealing space is by lucite 303 thick for 3mm
Enclose with other frame for movements and form, millimeter wave transceiving Anneta module 300 seal isolation is realized dust-proof.?
When millimeter wave launched by transmitting antenna 301, reception antenna 302 receives millimeter wave, millimeter wave all needs through 3mm
Thick lucite 303, owing to this lucite is blocked up, has stronger to millimeter wave transmitting, reception signal
Decay, and pmma material is special, arc lucite difficult processing, expensive, thus add instrument
Device development & production cycle and cost.Lucite area big (high 210mm, wide 130mm), mounting structure
Complexity, when human body safety check instrument maintenance maintenance, need to dismantle lucite, and operation is loaded down with trivial details, inconvenient.
Utility model content
The purpose of this utility model is to provide a kind of sweep mechanism, it is intended to solve the millimeter in existing safety check instrument
Ripple dual-mode antenna module uses lucite and other frame for movement seal isolation to cause millimeter-wave signal passing through
During lucite, decay is big, the lucite difficult processing of arc and mounting or dismounting are loaded down with trivial details, the technology that is not easy to safeguard is asked
Topic.
This utility model is achieved in that sweep mechanism, including to be imaged in scanning predetermined scanning area
The millimeter wave transceiving Anneta module of thing, described millimeter wave transceiving Anneta module includes millimeter wave transceiving antenna element,
The signal end of described millimeter wave transceiving antenna element also includes towards described predetermined scanning area, described sweep mechanism
It is covered in the dustproof membrane on described signal end.
Further, also include for driving described millimeter wave transceiving Anneta module to move along desired trajectory so that
Described millimeter wave transceiving Anneta module scans the actuator of described predetermined scanning area.
Further, the quantity of described millimeter wave transceiving Anneta module is two, two described millimeter wave transceiving skies
Wire module Relative distribution, described predetermined scanning area between two described millimeter wave transceiving Anneta modules, two
Individual described millimeter wave transceiving Anneta module uses a connection piece to connect, and described connector is driven by described actuator
Mobile.
Further, described millimeter wave transceiving antenna element in each described millimeter wave transceiving Anneta module
Quantity is at least two, and the millimeter wave that all described millimeter wave transceiving antenna elements are launched successively is through described dust-proof
Film also exposes to described thing to be imaged, described thing to be imaged the millimeter wave being reflected back is through described dustproof membrane also
Received successively by described millimeter wave transceiving antenna element.
Further, all described millimeter wave transceiving antenna list in each described millimeter wave transceiving Anneta module
Unit is distributed in column-shaped.
Further, described millimeter wave transceiving antenna element includes launching antenna and adjacent to described transmitting antenna
The reception antenna arranged；Or, described millimeter wave transceiving antenna element is transceiver antenna.
Further, also include being connected on described millimeter wave transceiving Anneta module and along described millimeter wave transceiving
The desired trajectory of Anneta module makees the preventer of stretching motion.
Further, on the direction of described desired trajectory, described millimeter wave transceiving Anneta module have back to
First sidepiece of distribution and the second sidepiece, described desired trajectory has the first end close to described first sidepiece
And the second end close to described second sidepiece；The quantity of described desired trajectory is at least one, each described pre-
Fixed track two described preventers of configuration, the of described desired trajectory be located at by one of them described preventer
Between one end and described first sidepiece, the second end of described desired trajectory is located at by preventer described in another one
And between described second sidepiece.
Further, the quantity of described millimeter wave transceiving Anneta module is two, two described millimeter wave transceiving skies
Wire module Relative distribution, described predetermined scanning area between two described millimeter wave transceiving Anneta modules, two
Individual described millimeter wave transceiving Anneta module rotates around same plumb line to scan described predetermined scanning area；
Or, the quantity of described millimeter wave transceiving Anneta module is two, two described millimeter wave transceiving antenna moulds
Block Relative distribution, described predetermined scanning area between two described millimeter wave transceiving Anneta modules, two institutes
State millimeter wave transceiving Anneta module to move along same level direction to scan described predetermined scanning area；
Or, the quantity of described millimeter wave transceiving Anneta module is two, two described millimeter wave transceiving antenna moulds
Block Relative distribution, described predetermined scanning area between two described millimeter wave transceiving Anneta modules, two institutes
State millimeter wave transceiving Anneta module vertically to move to scan described predetermined scanning area；
Or, the quantity of described millimeter wave transceiving Anneta module is one, and described predetermined scanning area is positioned at described letter
Number end front side, described millimeter wave transceiving Anneta module around one plumb line rotate to scan described predetermined scanning area；
Or, the quantity of described millimeter wave transceiving Anneta module is one, and described predetermined scanning area is positioned at described letter
Number end front side, described millimeter wave transceiving Anneta module in the horizontal direction move to scan described predetermined scanning area；
Or, the quantity of described millimeter wave transceiving Anneta module is one, and described predetermined scanning area is positioned at described letter
Number end front side, described millimeter wave transceiving Anneta module vertically move to scan described predetermined scanning area.
Further, described dustproof membrane be poly tetrafluoroethylene, polystyrene film, polyvinyl acetate film,
Polyimides adipose membrane or polyethylene film.
Another object of the present utility model is to provide a kind of safety check instrument, including sweep mechanism and with described scanning
Mechanism electrically connects and forms the three of thing to be imaged for the detection signal according to described millimeter wave transceiving Anneta module
The image processing apparatus of dimension image.
Further, also including the framework with an inner chamber, described framework has and entering that described inner chamber communicates
Mouth and outlet, described predetermined scanning area is formed in described framework, and described sweep mechanism is installed on described framework
On.
This utility model having the technical effect that relative to prior art, is arranged on millimeter wave transceiving Anneta module
Dustproof membrane, realizes dust-proof to the signal end seal isolation of millimeter wave transceiving antenna element, and this sweep mechanism is with existing
Have safety check instrument configuration arc lucite that whole millimeter wave transceiving Anneta module is sealed to compare, simple in construction,
The maintenance of safety check instrument, more convenient when safeguarding, cost reduces.Millimeter wave transceiving antenna element launch millimeter wave with
When receiving millimeter wave, millimeter wave needs not move through lucite and through dustproof membrane, decays millimeter-wave signal relatively
Little, improve safety check instrument three-dimensional imaging effect.
Accompanying drawing explanation
Fig. 1 is the operating diagram of the safety check instrument that prior art provides；
Fig. 2 is the structural representation of the safety check instrument that this utility model first embodiment provides；
Fig. 3 is the top view of the safety check instrument of Fig. 2；
Fig. 4 is the operating diagram of the safety check instrument of Fig. 2；
Fig. 5 is the installation diagram of millimeter wave transceiving Anneta module and the preventer applied in the safety check instrument of Fig. 2；
Fig. 6 is the structural representation of the safety check instrument that this utility model the second embodiment provides.
Sweep mechanism 100 dustproof membrane 20 framework 200
Millimeter wave transceiving Anneta module 10 actuator 30 entrance 201
First sidepiece 10a connector 31 exports 202
Second sidepiece 10b preventer 40 millimeter wave transceiving Anneta module 300
Millimeter wave transceiving antenna element 11 predetermined scanning area S launches antenna 301
Launch antenna 111 desired trajectory T reception antenna 302
Reception antenna 112 first end A lucite 303
Mounting seat 12 second end B
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing
And embodiment, this utility model is further elaborated.Should be appreciated that described herein specifically
Embodiment, only in order to explain this utility model, is not used to limit this utility model.
Referring to Fig. 2 to Fig. 5, the sweep mechanism 100 that this utility model embodiment provides, including for scanning
The millimeter wave transceiving Anneta module 10 of thing to be imaged, millimeter wave transceiving Anneta module 10 in predetermined scanning area S
Including millimeter wave transceiving antenna element 11, the signal end of millimeter wave transceiving antenna element 11 is towards predetermined scanning
District S, sweep mechanism 100 also includes the dustproof membrane 20 being covered on signal end.
Millimeter wave transceiving Anneta module 10 arranges dustproof membrane 20, to millimeter wave transceiving antenna element 11
Signal end seal isolation realizes dust-proof, and this sweep mechanism 100 configures arc lucite pair with existing safety check instrument
Whole millimeter wave transceiving Anneta module seals and compares, simple in construction, the maintenance of safety check instrument, more convenient when safeguarding,
Cost reduces.Millimeter wave transceiving antenna element 11 launch millimeter wave with receive millimeter wave time, millimeter wave without
Through lucite through dustproof membrane 20, less to millimeter-wave signal decay, improve safety check instrument three-dimensional imaging
Effect.
Specifically, sweep mechanism 100 is applied to active millimeter wave three-dimensional imaging human body safety check instrument.Scanner unit
Structure 100 can also be applied to other needs and be treated as thing makees the occasion of three-dimensional imaging.
Further, millimeter wave transceiving Anneta module 10 also includes for installing millimeter wave transceiving antenna element
The mounting seat 12 of 11.Millimeter wave transceiving antenna element 11 is installed on by bonding or other mechanical connection manner
In mounting seat 12.The shape of mounting seat 12 is arranged according to the arrangement mode of millimeter wave transceiving antenna element 11.
Specifically, millimeter wave transceiving antenna element 11 is arranged in column-shaped, and correspondingly, mounting seat 12 extends in bar shaped.
It is to be appreciated that can also be without arranging mounting seat, the millimeter wave in each millimeter wave transceiving Anneta module 10 is received
Send out antenna element 11 to be connected by bonding or other mechanical connection manner.
Further, also include for drive millimeter wave transceiving Anneta module 10 along desired trajectory T move with
Millimeter wave transceiving Anneta module 10 is made to scan the actuator 30 of predetermined scanning area S.Actuator 30 is used for driving
Millimeter wave transceiving Anneta module 10 moves.Desired trajectory T can be vertical curve, horizontal line or camber line etc..
When using different desired trajectory T, have respective algorithms to the detection signal of millimeter wave transceiving Anneta module 10 at
Reason realizes three-dimensional imaging.Actuator 30 can be rotating drive part, linear drives part, rotating drive part and biography
The combination of motivation structure, linear drives part and the combination of drive mechanism, specifically arrange according to desired trajectory T.Turn
Dynamic actuator can be motor, hydraulic motor etc., and linear drives part can be electricity cylinder, hydraulic cylinder etc..
In the present embodiment, actuator is servomotor, and servomotor can be precisely controlled millimeter wave transceiving Anneta module
The speed of 10 and position.It is to be appreciated that millimeter wave transceiving Anneta module can also be without configuration driven part, adopt
Use manually implemented movement.
Further, the quantity of millimeter wave transceiving Anneta module 10 is two, two millimeter wave transceiving Anneta modules
10 Relative distribution, predetermined scanning area S between two millimeter wave transceiving Anneta modules 10, two millimeters
Ripple dual-mode antenna module 10 uses a connection piece 31 to connect, and connector 31 is driven movement by actuator 30.
When actuator 30 drive connection part 31 moves, actuator 30 is used to simultaneously drive two millimeter wave transceiving skies
Wire module 10, is treated as the both sides of thing are scanned simultaneously, and sweep time shortens.Specifically, connector 31
Being to be located at the cantilever above predetermined scanning area S, two millimeter wave transceiving Anneta modules 10 are connected to hang
Arm two ends, actuator 30 is rotating drive part, and rotating drive part 30 drives cantilever to rotate, and cantilever drives two
Individual millimeter wave transceiving Anneta module 10 rotates a predetermined angular (such as 120 °), can be treated as the both sides as thing
Scan simultaneously.It addition, the quantity of millimeter wave transceiving Anneta module 10 does not limits with moving range, the most on-demand
Configuration.
Further, the number of the millimeter wave transceiving antenna element 11 in each millimeter wave transceiving Anneta module 10
Amount at least two, the millimeter wave that all millimeter wave transceiving antenna elements 11 are launched successively is through dustproof membrane 20 also
Expose to thing to be imaged, thing to be imaged the millimeter wave being reflected back is through dustproof membrane 20 and by millimeter wave transceiving sky
Line unit 11 receives successively.This configuration structure is compact, uses less millimeter wave transceiving Anneta module 10 edge
Desired trajectory T moves, and can scan predetermined scanning area S.Specifically, a millimeter wave transceiving Anneta module
10 have 192 millimeter wave transceiving antenna elements 11, allow predetermined scanning area S be maintained in predetermined altitude range.
The on-demand configuration of quantity of millimeter wave transceiving antenna element 11.
Further, all millimeter wave transceiving antenna elements 11 are distributed in column-shaped.This compact conformation, along predetermined
Track T moves, and can scan predetermined scanning area S.Preferably, millimeter wave transceiving antenna element 11 column-shaped
Arrangement, arragement direction is perpendicular with the tangential direction of the desired trajectory T of millimeter wave transceiving Anneta module 10,
Use minimum millimeter wave transceiving antenna element 11 that predetermined scanning area S is scanned.It is to be appreciated that multiple millis
Metric wave dual-mode antenna unit 11 whole arrangement of all right two dimension, directly scans predetermined scanning area S, the program
Need more millimeter wave transceiving antenna element 11.Or, millimeter wave transceiving antenna element 11 can also be by advance
Determine curve distribution, move along desired trajectory T, predetermined scanning area S can be scanned.
Further, millimeter wave transceiving antenna element 11 includes launching antenna 111 and adjacent to launching antenna
111 reception antennas 112 arranged.Millimeter wave launches antenna 111, millimeter wave reception antenna 112 is frequency respectively
Rate is 26GHz to 300GHz electromagnetic wave transmitting antenna and reception antenna.Launch antenna 111 signal end with
The signal end of reception antenna 112 is all towards predetermined scanning area S.In all millimeter wave transceiving antenna elements 11
The millimeter wave that transmitting antenna 111 is launched successively through dustproof membrane 20 and exposes to thing to be imaged, by thing to be imaged
The millimeter wave being reflected back connects successively through dustproof membrane 20 and by the reception antenna 112 corresponding to transmitting antenna 111
Receive.Preferably, in each millimeter wave transceiving Anneta module 10, in each millimeter wave transceiving antenna element 11
Transmitting antenna 111 arrange with reception antenna 112 column-shaped successively, this compact conformation, it is simple to predetermined scanning
District S scans.It is to be appreciated that in each millimeter wave transceiving Anneta module 10, each millimeter wave transceiving antenna
Transmitting antenna in unit 11 111 and reception antenna 112 can also stagger arrangement, and this configuration also can be to making a reservation for
Scanning area S scans.Or, millimeter wave transceiving antenna element 11 is transceiver antenna.This compact conformation,
Easily assembling.Millimeter wave transceiving single antenna be frequency be 26GHz to 300GHz electromagnetic wave transceiver sky
Line.Dustproof membrane 20 is adhered to all millimeter wave transceiving antenna elements on same millimeter wave transceiving Anneta module 10
The signal end of 11, this structure easy assembling disassembling, to signal end sealing and dustproof.
Further, also include being connected on millimeter wave transceiving Anneta module 10 and along millimeter wave transceiving antenna mould
The desired trajectory T of block 10 makees the preventer 40 of stretching motion.When millimeter wave transceiving Anneta module 10 is along in advance
When moving on fixed track T, preventer 40 is followed millimeter wave transceiving Anneta module 10 and is made stretching motion, anti-
Protection unit 40 plays barrier action, to reach to prevent foreign body from falling into or human body entrance millimeter wave transceiving Anneta module
10 effects running track.Specifically, preventer 40 is sliding door, Folding curtain or other collapsible knot
Structure, Collapsible structure.It addition, be configured with the track for installing preventer 40 on framework 200, for anti-
Protection unit 40 makees stretching motion on desired trajectory T.
Further, refer to Fig. 3, Fig. 5, millimeter wave transceiving antenna mould on the direction of desired trajectory T
The first sidepiece 10a and the second sidepiece 10b, desired trajectory T that block 10 has back to distribution have close to the
The first end A of one sidepiece 10a and the second end B close to the second sidepiece 10b；The quantity of desired trajectory T
At least one, each desired trajectory T configures two preventers 40, and one of them preventer 40 is located at
Between the first end A and the first sidepiece 10a of desired trajectory T, another one preventer 40 is located at predetermined
Between the second end B and the second sidepiece 10b of track T.Millimeter wave transceiving Anneta module 10 in bar shaped
Both sides respectively arrange a preventer 40, and a side of preventer 40 is fixed on the first of desired trajectory T
Hold A or the second end B, and another side of this preventer 40 is fixed on millimeter wave transceiving Anneta module 10
One of them sidepiece.When millimeter wave transceiving Anneta module 10 moves on desired trajectory T, two protection
Device 40 is followed millimeter wave transceiving Anneta module 10 and is made telescopic moving.
Further, the quantity of millimeter wave transceiving Anneta module 10 is two, two millimeter wave transceiving Anneta modules
10 Relative distribution, predetermined scanning area S between two millimeter wave transceiving Anneta modules 10, two millimeters
Ripple dual-mode antenna module 10 rotates around same plumb line to scan predetermined scanning area S.The program can realize cylinder
Rotation sweep, people stands in predetermined scanning area S, as long as run-down can complete the 3-D scanning of human body.
Or, the quantity of millimeter wave transceiving Anneta module 10 is two, two millimeter wave transceiving Anneta modules 10
Relative distribution, predetermined scanning area S is between two millimeter wave transceiving Anneta modules 10, and two millimeter waves are received
Send out Anneta module 10 to move along same level direction to scan predetermined scanning area S.It is horizontal that the program can realize bilateral
To scanning, people stands in predetermined scanning area S, as long as run-down can complete the 3-D scanning of human body.
Or, the quantity of millimeter wave transceiving Anneta module 10 is two, two millimeter wave transceiving Anneta modules 10
Relative distribution, predetermined scanning area S is between two millimeter wave transceiving Anneta modules 10, and two millimeter waves are received
Send out Anneta module 10 vertically to move to scan predetermined scanning area S.The program can realize bilateral and longitudinally sweep
Retouching, people stands in predetermined scanning area S, as long as run-down can complete the 3-D scanning of human body.
Or, the quantity of millimeter wave transceiving Anneta module 10 is one, before predetermined scanning area S is positioned at signal end
Side, millimeter wave transceiving Anneta module 10 rotates around a plumb line to scan predetermined scanning area S.The program can be real
Current situation portion rotation sweep or cylinder rotation sweep.The such as rotation angle range of millimeter wave transceiving Anneta module 10
Being 120 °, people stands in predetermined scanning area S, and before and after people, both sides are respectively for millimeter wave transceiving Anneta module 10,
Scan the 3-D scanning that can complete human body twice.Or, the anglec of rotation of millimeter wave transceiving Anneta module 10
Scope is 300 °, and people stands in predetermined scanning area S, and run-down can complete the 3-D scanning of human body.
Or, the quantity of millimeter wave transceiving Anneta module 10 is one, before predetermined scanning area S is positioned at signal end
Side, millimeter wave transceiving Anneta module 10 moves in the horizontal direction to scan predetermined scanning area S.The program can be real
Existing unilateral transversal scanning, people stands in predetermined scanning area S, and before and after people, both sides are respectively for millimeter wave transceiving sky
Wire module 10, scans the 3-D scanning that can complete human body twice.
Or, the quantity of millimeter wave transceiving Anneta module 10 is one, before predetermined scanning area S is positioned at signal end
Side, millimeter wave transceiving Anneta module 10 vertically moves to scan predetermined scanning area S.The program can be real
Existing unilateral longitudinal scanning, people stands in predetermined scanning area S, and before and after people, both sides are respectively for millimeter wave transceiving sky
Wire module 10, scans the 3-D scanning that can complete human body twice.
It is to be appreciated that millimeter wave transceiving Anneta module 10 can also use other arrangement, sweep predetermined
Retouch district S to be scanned.
Further, dustproof membrane 20 is poly tetrafluoroethylene, polystyrene film, polyvinyl acetate film, gathers
Imines adipose membrane or polyethylene film or other dustproof membrane.Above-mentioned dustproof membrane 20 all can be to launching antenna 111 and receiving
Antenna 112 sealing and dustproof, and the dielectric constant of dustproof membrane 20 is lower than the dielectric constant of lucite, to milli
Metric wave has high transmittance, little to Attenuation.The thickness range of dustproof membrane 20 is 0.01 to 1mm,
Dustproof membrane in this thickness range is little to Attenuation.Preferably, the thickness of dustproof membrane is 0.05mm, should
Dustproof membrane saves materials, and assembling is stable, and its thickness is only the 1/60 of lucite thickness (3mm), reduces
The dustproof membrane decay to millimeter wave transceiving aerial signal, thus improve safety check instrument three-dimensional imaging effect.Dust-proof
The domestic easy purchase of film, and price many about 200 yuan (specification: wide 50mm, thick about 0.05mm,
Long 100m), and the sealing infrastructure cost of existing employing lucite and other frame for movements all 10,000 yuan with
On, greatly reduce cost by contrast.
Refer to Fig. 2 to Fig. 5, the safety check instrument that this utility model first embodiment provides, sweep including above-mentioned
Retouch mechanism 100 and electrically connect with sweep mechanism 100 and for the detection according to millimeter wave transceiving Anneta module 10
Signal forms the image processing apparatus (not shown) of the 3-D view of thing to be imaged.In the present embodiment, safety check
During instrument work, rotating drive part 30 drive connection part 31, and drive two millimeter wave transceiving Anneta modules 10
Carry out 120 ° of cylinder rotation sweeps.Multiple transmitting antennas 111 launch millimeter-wave signal successively through dustproof membrane 20
Exposing to human body, the millimeter-wave signal that human body is reflected back is again through dustproof membrane 20 by multiple reception antennas 112 successively
Receive, and carry out three-dimensional imaging detection by image processing apparatus.The selection of actuator 30, millimeter wave transceiving
The quantity of Anneta module 10 and moving range, the on-demand configuration of quantity of millimeter wave transceiving antenna element 11.
Further, also including the framework 200 with an inner chamber, framework 200 has entering of communicating with inner chamber
Mouth 201 and outlet 202, predetermined scanning area S is formed in framework 200, and sweep mechanism 100 is installed on frame
On frame 200.Framework 200 is as the carrier installing the various parts such as sweep mechanism 100, actuator 30.Enter
Mouth 201 is oppositely arranged with outlet 202, and people enters predetermined scanning area S by entrance 201, by outlet 202
Leave predetermined scanning area S.
Referring to Fig. 6, the safety check instrument that this utility model the second embodiment provides, with first embodiment offer
Safety check instrument is roughly the same, and unlike first embodiment, the quantity of millimeter wave transceiving Anneta module 10 is two,
Two millimeter wave transceiving Anneta module 10 Relative distribution, predetermined scanning area S is positioned at two millimeter wave transceiving antennas
Between module 10, two millimeter wave transceiving Anneta modules 10 vertically move to scan predetermined scanning area
S.The program can realize bilateral longitudinal scanning, and people stands in predetermined scanning area S, if run-down
Complete the 3-D scanning of human body.
Further, the both sides at the millimeter wave transceiving Anneta module 10 of bar shaped respectively arrange a preventer
40, a side of preventer 40 is fixed on wherein one end of desired trajectory T, and this preventer 40
Another side is fixed on one of them sidepiece of millimeter wave transceiving Anneta module 10.Millimeter wave transceiving Anneta module
10 when moving on desired trajectory T, and two preventers 40 are followed millimeter wave transceiving Anneta module 10 and stretched
Contracting is mobile.Preventer 40 plays barrier action, to reach to prevent foreign body from falling into or human body entrance millimeter wave receipts
Send out Anneta module 10 and run the effect of track.
It is to be appreciated that millimeter wave transceiving Anneta module 10 can also use whole Surface scan, bilateral transversal scanning,
Locally rotation sweep, unilateral transversal scanning, unilateral longitudinal scanning or other arrangement, to predetermined scanning area
S is scanned.
These are only preferred embodiment of the present utility model, not in order to limit this utility model, all
Any amendment, equivalent and the improvement etc. made within spirit of the present utility model and principle, all should comprise
Within protection domain of the present utility model.
Claims (12)
1. sweep mechanism, it is characterised in that include the millimeter wave of thing to be imaged in scanning predetermined scanning area
Dual-mode antenna module, described millimeter wave transceiving Anneta module includes millimeter wave transceiving antenna element, described millimeter
The signal end of ripple dual-mode antenna unit is towards described predetermined scanning area, and described sweep mechanism also includes being covered in institute
State the dustproof membrane on signal end.
2. sweep mechanism as claimed in claim 1, it is characterised in that also include for driving described millimeter
Ripple dual-mode antenna module moves along desired trajectory so that described the making a reservation for of described millimeter wave transceiving Anneta module scanning is swept
Retouch the actuator in district.
3. sweep mechanism as claimed in claim 2, it is characterised in that described millimeter wave transceiving Anneta module
Quantity be two, two described millimeter wave transceiving Anneta module Relative distribution, described predetermined scanning area is positioned at two
Between individual described millimeter wave transceiving Anneta module, two described millimeter wave transceiving Anneta modules use a connection piece
Connecting, described connector is driven mobile by described actuator.
4. sweep mechanism as claimed in claim 1, it is characterised in that each described millimeter wave transceiving antenna
The quantity of the described millimeter wave transceiving antenna element in module is at least two, all described millimeter wave transceiving antennas
The millimeter wave that unit is launched successively is through described dustproof membrane and exposes to described thing to be imaged, by described to be imaged
The millimeter wave that thing is reflected back receives successively through described dustproof membrane and by described millimeter wave transceiving antenna element.
5. sweep mechanism as claimed in claim 4, it is characterised in that each described millimeter wave transceiving antenna
All described millimeter wave transceiving antenna element in module is column-shaped distribution.
6. sweep mechanism as claimed in claim 1, it is characterised in that described millimeter wave transceiving antenna element
Including launching antenna and the reception antenna arranged adjacent to described transmitting antenna；Or, described millimeter wave transceiving
Antenna element is transceiver antenna.
7. the sweep mechanism as described in any one of claim 1 to 6, it is characterised in that also include being connected to
Flexible fortune is made on described millimeter wave transceiving Anneta module and along the desired trajectory of described millimeter wave transceiving Anneta module
Dynamic preventer.
8. sweep mechanism as claimed in claim 7, it is characterised in that on the direction of described desired trajectory,
Described millimeter wave transceiving Anneta module has the first sidepiece back to distribution and the second sidepiece, described desired trajectory
There is the first end close to described first sidepiece and the second end close to described second sidepiece；Described predetermined
The quantity of track is at least one, and each described desired trajectory configures two described preventers, one of them institute
State preventer to be located between the first end of described desired trajectory and described first sidepiece, anti-described in another one
Protection unit is located between the second end of described desired trajectory and described second sidepiece.
9. the sweep mechanism as described in any one of claim 1,2,4 to 6, it is characterised in that described milli
The quantity of metric wave dual-mode antenna module is two, two described millimeter wave transceiving Anneta module Relative distribution, described
Predetermined scanning area between two described millimeter wave transceiving Anneta modules, two described millimeter wave transceiving antennas
Module rotates around same plumb line to scan described predetermined scanning area；
Or, the quantity of described millimeter wave transceiving Anneta module is two, two described millimeter wave transceiving antenna moulds
Block Relative distribution, described predetermined scanning area between two described millimeter wave transceiving Anneta modules, two institutes
State millimeter wave transceiving Anneta module to move along same level direction to scan described predetermined scanning area；
Or, the quantity of described millimeter wave transceiving Anneta module is two, two described millimeter wave transceiving antenna moulds
Block Relative distribution, described predetermined scanning area between two described millimeter wave transceiving Anneta modules, two institutes
State millimeter wave transceiving Anneta module vertically to move to scan described predetermined scanning area；
Or, the quantity of described millimeter wave transceiving Anneta module is one, and described predetermined scanning area is positioned at described letter
Number end front side, described millimeter wave transceiving Anneta module around one plumb line rotate to scan described predetermined scanning area；
Or, the quantity of described millimeter wave transceiving Anneta module is one, and described predetermined scanning area is positioned at described letter
Number end front side, described millimeter wave transceiving Anneta module in the horizontal direction move to scan described predetermined scanning area；
Or, the quantity of described millimeter wave transceiving Anneta module is one, and described predetermined scanning area is positioned at described letter
Number end front side, described millimeter wave transceiving Anneta module vertically move to scan described predetermined scanning area.
10. the sweep mechanism as described in any one of claim 1 to 6, it is characterised in that described dustproof membrane
For poly tetrafluoroethylene, polystyrene film, polyvinyl acetate film, polyimides adipose membrane or polyethylene film.
11. safety check instrument, it is characterised in that include the sweep mechanism as described in any one of claim 1 to 10
And electrically connect with described sweep mechanism and formed for the detection signal according to described millimeter wave transceiving Anneta module
The image processing apparatus of the 3-D view of thing to be imaged.
12. safety check instrument as claimed in claim 11, it is characterised in that also include the framework with an inner chamber,
Described framework has the entrance and outlet communicated with described inner chamber, and described predetermined scanning area is formed at described framework
In, described sweep mechanism is installed on described framework.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620359265.5U CN205720716U (en) | 2016-04-26 | 2016-04-26 | Sweep mechanism and there is the safety check instrument of this sweep mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620359265.5U CN205720716U (en) | 2016-04-26 | 2016-04-26 | Sweep mechanism and there is the safety check instrument of this sweep mechanism |
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| Publication Number | Publication Date |
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| CN205720716U true CN205720716U (en) | 2016-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620359265.5U Active CN205720716U (en) | 2016-04-26 | 2016-04-26 | Sweep mechanism and there is the safety check instrument of this sweep mechanism |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105759315A (en) * | 2016-04-26 | 2016-07-13 | 深圳市无牙太赫兹科技有限公司 | Scanning mechanism and safety inspection instrument possessing the scanning mechanism |
| CN111650665A (en) * | 2020-05-20 | 2020-09-11 | 北京遥测技术研究所 | Security inspection imaging system with motion compensation and using method thereof |
-
2016
- 2016-04-26 CN CN201620359265.5U patent/CN205720716U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105759315A (en) * | 2016-04-26 | 2016-07-13 | 深圳市无牙太赫兹科技有限公司 | Scanning mechanism and safety inspection instrument possessing the scanning mechanism |
| WO2017186032A1 (en) * | 2016-04-26 | 2017-11-02 | 华讯方舟科技有限公司 | Scanning mechanism and security check device having the scanning mechanism |
| US10795015B2 (en) | 2016-04-26 | 2020-10-06 | Shenzhen Cct Thz Technology Co., Ltd. | Scanning apparatus and security-inspection device with the same |
| CN111650665A (en) * | 2020-05-20 | 2020-09-11 | 北京遥测技术研究所 | Security inspection imaging system with motion compensation and using method thereof |
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