CN106873045A - A kind of remote passive type Terahertz safety check imaging system - Google Patents
A kind of remote passive type Terahertz safety check imaging system Download PDFInfo
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- CN106873045A CN106873045A CN201611147192.4A CN201611147192A CN106873045A CN 106873045 A CN106873045 A CN 106873045A CN 201611147192 A CN201611147192 A CN 201611147192A CN 106873045 A CN106873045 A CN 106873045A
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- 238000003384 imaging method Methods 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 13
- 230000008569 process Effects 0.000 claims description 10
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 6
- 229920001903 high density polyethylene Polymers 0.000 claims description 5
- 239000004700 high-density polyethylene Substances 0.000 claims description 5
- 230000001154 acute effect Effects 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000011084 recovery Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 7
- 230000036541 health Effects 0.000 abstract description 4
- 230000005855 radiation Effects 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 239000002360 explosive Substances 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000013100 final test Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V8/00—Prospecting or detecting by optical means
- G01V8/10—Detecting, e.g. by using light barriers
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Abstract
The invention provides a kind of remote passive type Terahertz safety check imaging system, safety check imaging system includes：Scanning subsystem, focusing subsystem, feed array received subsystem, Signal acquiring and processing subsystem, image display subsystem and control subsystem, scanning subsystem, focusing subsystem, feed array received subsystem, Signal acquiring and processing subsystem and image display subsystem are sequentially connected, control subsystem is connected with scanning subsystem, feed array received subsystem and Signal acquiring and processing subsystem respectively, scanning subsystem includes non-parallel double mirror, wherein, non-parallel double mirror is used to be scanned target.It can be seen that, remote passive type Terahertz safety check imaging system can penetrate human body clothing, detect contraband of the concealment in clothing, and health will not be caused harm, and image taking speed is fast, and detection range is remote, reduces the working strength of safety check staff.
Description
Technical field
The present invention relates to public safety technical field, more particularly to a kind of remote passive type Terahertz safety check imaging system
System.
Background technology
Whether the content of safety inspection is mainly in inspection passenger and luggage and articles carry gun, ammunition, inflammable, explosive
Etc. dangerous goods, to ensure the safety of passenger.
Current human body safety check relies primarily on metal detector gate and hand-held safety check instrument to complete.X-ray transmission-type/back of the body dissipates formula safety check
, there is ionising radiation in instrument, the threat certain to the healthy composition of people, and be imaged excessively clearly, easily invade personal hidden
It is private.Moreover, traditional rays safety detection apparatus substantially closely complete the static safety check imaging to human body, and visual field is smaller, can only
Closely human body is imaged, is obscured or can not be imaged for slightly remote target imaging.And hand-held safety check instrument is in safety check
Cheng Zhonghui increases security staff's working strength.
It can be seen that, existing two kinds traditional security actions can only detect metal contraband, and false drop rate and loss are higher,
In the presence of the privacy for easily invading tested personnel, the problems such as can not play a part of safety check for remote human body.
The content of the invention
The invention provides a kind of remote passive type Terahertz safety check imaging system, to solve to be deposited during existing safety check
For remote human body can not play safety check effect problem.
In order to solve the above problems, the invention discloses a kind of remote passive type Terahertz safety check imaging system, including：
The safety check imaging system includes：Scanning subsystem, focusing subsystem, feed array received subsystem, Signal acquiring and processing
Subsystem, image display subsystem and control subsystem；The scanning subsystem, focusing subsystem, feed array received
System, Signal acquiring and processing subsystem and image display subsystem are sequentially connected；The control subsystem connects including three
Mouthful, three interfaces connect with the scanning subsystem, feed array received subsystem and Signal acquiring and processing subsystem respectively
Connect；The scanning subsystem includes non-parallel double mirror, wherein, the non-parallel double mirror is used to carry out target
Scanning.
Preferably, the non-parallel double mirror is made up of two metal covering speculums；Described two metal covering reflections
The angle of mirror is acute angle.
Preferably, the non-parallel double mirror carries out biserial scanning in scanning process to target；And it is described non-flat
Row double mirror is rotated in scanning process.
Preferably, described two metal covering mirror shapes are rectangle.
Preferably, the scanning subsystem is scanned to target, the THz wave of target emanation is reflexed to described poly-
Burnt subsystem；The focusing subsystem is used to for the THz wave of the target emanation to focus on feed array received subsystem；
The feed array received subsystem is used to receive the THz wave of the target emanation, the Terahertz of the target emanation that will be received
Ripple is changed and processed；The Signal acquiring and processing subsystem is used to gather the signal after receiving conversion and treatment, goes forward side by side
Row signal transacting, carries out the recovery and reconstruct of image；Described image display subsystem is used to show the image after final process.
Preferably, the condenser lens of the focusing subsystem is：Polytetrafluoroethylene (PTFE) condenser lens or high density polyethylene (HDPE)
Condenser lens.
Preferably, alarm module is included in the Signal acquiring and processing subsystem；When the letter for detecting suspicious violated thing
Number when, alarm signal is sent to the display terminal with the remote passive type Terahertz safety check imaging device, PC ends or hand
The mobile terminals such as machine.
Compared with prior art, the present invention has advantages below：
Remote passive type Terahertz safety check imaging system provided in an embodiment of the present invention, including scanning subsystem, focusing
Subsystem, feed array received subsystem, Signal acquiring and processing subsystem, image display subsystem and control subsystem,
Scanning subsystem, focusing subsystem, feed array received subsystem, Signal acquiring and processing subsystem and image display subsystem
System is sequentially connected, and control subsystem includes three interfaces, three interfaces respectively with scanning subsystem, feed array received subsystem
And Signal acquiring and processing subsystem is connected, scanning subsystem includes non-parallel double mirror, wherein, it is non-parallel two-sided anti-
Mirror is penetrated for being scanned to target.It can be seen that, a kind of remote passive type Terahertz safety check imaging provided in an embodiment of the present invention
System, can penetrate human body clothing, detect contraband of the concealment in clothing, due to being passive type Terahertz human testing,
The electromagnetic-radiation-free during safety check, will not cause harm to health, and using non-parallel double mirror to target
Be scanned, image taking speed is fast, detection range is remote, a kind of remote passive type Terahertz provided in an embodiment of the present invention safety check into
As system is intelligent checking system, reduce the working strength of safety check staff.
Brief description of the drawings
Fig. 1 is a kind of structured flowchart of remote passive type Terahertz safety check imaging system of the invention；
Fig. 2 is a kind of showing for the non-parallel double mirror of remote passive type Terahertz safety check imaging system of the invention
It is intended to.
Specific embodiment
It is below in conjunction with the accompanying drawings and specific real to enable the above objects, features and advantages of the present invention more obvious understandable
The present invention is further detailed explanation to apply mode.
Embodiment one
Reference picture 1, shows a kind of structured flowchart of remote passive type Terahertz safety check imaging system of the present invention.
Remote passive type Terahertz safety check imaging system provided in an embodiment of the present invention includes：It is scanning subsystem 101, poly-
Burnt subsystem 102, feed array received subsystem 103, Signal acquiring and processing subsystem 104, image display subsystem 105 with
And control subsystem 106, scanning subsystem 101, focusing subsystem 102, feed array received subsystem 103, signal acquisition with
Processing subsystem 104 and image display subsystem 105 are sequentially connected, and control subsystem 106 includes three interfaces, three interfaces
It is connected with scanning subsystem 101, feed array received subsystem 103 and Signal acquiring and processing subsystem 104 respectively, is scanned
Subsystem 101 includes non-parallel double mirror, as shown in Fig. 2 wherein, non-parallel double mirror is used to sweep target
Retouch.
When there is target to need to be scanned, the non-parallel Double sided mirror in scanning subsystem is scanned to visual field target,
By in the reflection of electromagnetic wave of target emanation to focusing subsystem, after focusing subsystem receives signal, by visual field target emanation
THz wave is assembled and is sent to feed array received subsystem, and feed array received subsystem is examined the electromagnetic wave of reception
The treatment such as ripple, then the signal after treatment is sent to Signal acquiring and processing subsystem carries out signal acquisition and image and recover and weight
The treatment such as structure, the image result for most detecting at last is displayed in image display subsystem.
During implementing, THz wave refers to electromagnetic wave of the frequency in 0.1THz to 10THz scopes, and wavelength is general
In the range of 0.03 to 3mm, between microwave and it is infrared between, it is and harmless, so safe ready in use.
Because the THz wave intensity of any object radiation is distinguishing, therefore, hide metal in human body clothing,
The contrabands such as ceramics, drugs, explosive liquid are imaged has obvious intensity contrast with human body imaging, so as to can recognize that violated thing
Product.
Remote passive type Terahertz safety check imaging system provided in an embodiment of the present invention, including scanning subsystem, focusing
Subsystem, feed array received subsystem, Signal acquiring and processing subsystem, image display subsystem and control subsystem,
Scanning subsystem, focusing subsystem, feed array received subsystem, Signal acquiring and processing subsystem and image display subsystem
System is sequentially connected, and control subsystem includes three interfaces, three interfaces respectively with scanning subsystem, feed array received subsystem
And Signal acquiring and processing subsystem is connected, scanning subsystem includes non-parallel double mirror, wherein, it is non-parallel two-sided anti-
Mirror is penetrated for being scanned to target.It can be seen that, a kind of remote passive type Terahertz safety check imaging provided in an embodiment of the present invention
System, can penetrate human body clothing, detect contraband of the concealment in clothing, be detected by being then based on passive type Terahertz,
The electromagnetic-radiation-free during safety check, will not cause harm to health, and using non-parallel double mirror to target
Be scanned, image taking speed is fast, detection range is remote, a kind of remote passive type Terahertz provided in an embodiment of the present invention safety check into
As system is intelligent checking system, reduce the working strength of safety check staff.
Embodiment two
Still reference picture 1, shows a kind of structured flowchart of remote passive type Terahertz safety check imaging system of the present invention.
Remote passive type Terahertz safety check imaging system provided in an embodiment of the present invention includes：It is scanning subsystem 101, poly-
Burnt subsystem 102, feed array received subsystem 103, Signal acquiring and processing subsystem 104, image display subsystem 105 with
And control subsystem 106, scanning subsystem 101, focusing subsystem 102, feed array received subsystem 103, signal acquisition with
Processing subsystem 104 and image display subsystem 105 are sequentially connected, and control subsystem 106 includes three interfaces, three interfaces
It is connected with scanning subsystem 101, feed array received subsystem 103 and Signal acquiring and processing subsystem 104 respectively, is scanned
Subsystem 101 includes non-parallel double mirror, wherein, non-parallel double mirror is used to be scanned target.And it is non-flat
Row double mirror is made up of two metal covering speculums, and the angle of two metal covering speculums is acute angle, and two metal coverings are anti-
Penetrate mirror shape and be rectangle, the condenser lens of focusing subsystem can be：Polytetrafluoroethylene (PTFE) condenser lens or high-density polyethylene
Alkene condenser lens.
The schematic diagram of non-parallel double mirror is illustrated in figure 2,1011 is the first speculum, 1012 is the second reflection
Mirror.First speculum and the second speculum form an acute angle of θ.
It should be noted that those skilled in the art can according to actual conditions to two angles of metal covering speculum with
And shape is selected, θ angles could be arranged to 10 °, 15 ° etc., and shape could be arranged to circle, rectangle etc..This is not made have
Body is limited.
In specific operation process, non-parallel double mirror carries out biserial scanning in scanning process to target, and non-
Pinacoid speculum is rotated in scanning process.
Non-parallel double mirror scan pattern in scanning system to rotate at a high speed, and it is unconventional swing up and down, and
And rotate a circle can complete target to be scanned biserial scanning, can not only improve sweep speed, at the same improve scanning utilize
Rate, and in the absence of moving horizontally in scanning process, mechanical structure is stable.
During implementing, scanning subsystem is scanned to target, and non-parallel double mirror is used to scan mesh
The THz wave of radiation is marked, the THz wave of target emanation is reflexed into focusing subsystem；Focusing subsystem is used for target spoke
The THz wave penetrated focuses on feed array received subsystem；Feed array received subsystem is used to receive the terahertz of target emanation
Hereby ripple, conversion is carried out with detection treatment by the electromagnetic wave of reception；Signal acquiring and processing subsystem is used for the signal after detection
It is acquired and recovers and reconstruction processing with further image；Image display subsystem is used to be shown final testing result
Show, when the signal of suspicious violated thing is detected, send alarm signal to remote passive type Terahertz safety check imaging device
Mobile terminal with data communication connection, points out security staff.
It should be noted that those skilled in the art can be selected mobile terminal according to actual conditions, Ke Yiwei
Mobile phone, PC ends etc., are not particularly limited to this.
Remote passive type Terahertz safety check imaging system provided in an embodiment of the present invention, including scanning subsystem, focusing
Subsystem, feed array received subsystem, Signal acquiring and processing subsystem, image display subsystem and control subsystem,
Scanning subsystem, focusing subsystem, feed array received subsystem, Signal acquiring and processing subsystem and image display subsystem
System is sequentially connected, and control subsystem includes three interfaces, three interfaces respectively with scanning subsystem, feed array received subsystem
And Signal acquiring and processing subsystem is connected, scanning subsystem includes non-parallel double mirror, wherein, it is non-parallel two-sided anti-
Mirror is penetrated for being scanned to target.It can be seen that, a kind of remote passive type Terahertz safety check imaging provided in an embodiment of the present invention
System, can penetrate human body clothing, detect contraband of the concealment in clothing, be examined by being then based on passive type THz wave
Survey, the electromagnetic-radiation-free during safety check will not cause harm to health, and using non-parallel double mirror to mesh
Mark is scanned, and image taking speed is fast, and detection range is remote, a kind of remote passive type Terahertz safety check provided in an embodiment of the present invention
Imaging system is intelligent checking system, reduces the working strength of safety check staff.
Each embodiment in this specification is described by the way of progressive, what each embodiment was stressed be with
The difference of other embodiment, between each embodiment identical similar part mutually referring to.For system embodiment
For, because it is substantially similar to embodiment of the method, so description is fairly simple, referring to the portion of embodiment of the method in place of correlation
Defend oneself bright.
Above to a kind of remote passive type Terahertz safety check imaging system provided by the present invention, detailed Jie has been carried out
Continue, specific case used herein is set forth to principle of the invention and implementation method, the explanation of above example is only
It is to be used to help understand the method for the present invention and its core concept, simultaneously for those of ordinary skill in the art, according to this hair
Bright thought, be will change in specific embodiments and applications, and in sum, this specification content should not be managed
It is limitation of the present invention to solve.
Claims (7)
1. a kind of remote passive type Terahertz safety check imaging system, it is characterised in that the safety check imaging system includes：Scanning
Subsystem, focusing subsystem, feed array received subsystem, Signal acquiring and processing subsystem, image display subsystem and
Control subsystem；
The scanning subsystem, focusing subsystem, feed array received subsystem, Signal acquiring and processing subsystem and image
Display subsystem is sequentially connected；
The control subsystem includes three interfaces, three interfaces respectively with the scanning subsystem, feed array received subsystem
System and the connection of Signal acquiring and processing subsystem；
The scanning subsystem includes non-parallel double mirror, wherein, the non-parallel double mirror is used to enter target
Row scanning.
2. remote passive type Terahertz safety check imaging system according to claim 1, it is characterised in that described non-parallel
Double mirror is made up of two metal covering speculums；
The angle of described two metal covering speculums is acute angle.
3. remote passive type Terahertz safety check imaging system according to claim 1, the non-parallel double mirror
Biserial scanning is carried out to target in scanning process；
And the non-parallel double mirror is rotated in scanning process.
4. remote passive type Terahertz safety check imaging system according to claim 2, it is characterised in that：
Described two metal covering mirror shapes are rectangle.
5. remote passive type Terahertz safety check imaging system according to claim 1, it is characterised in that：
The scanning subsystem is scanned to target, and the THz wave of target emanation is reflexed into the focusing subsystem；
The focusing subsystem is used to for the THz wave of the target emanation to focus on feed array received subsystem；
The feed array received subsystem is used to receive the THz wave of the target emanation, and the target emanation that will be received is too
Hertz wave is changed and processed；
The Signal acquiring and processing subsystem is used to gather the signal after receiving conversion and treatment, and carries out signal transacting, enters
The recovery of row image and reconstruct；
Described image display subsystem is used to show the image after final process.
6. remote passive type Terahertz safety check imaging system according to claim 1, it is characterised in that the focuson
The condenser lens of system is：Polytetrafluoroethylene (PTFE) condenser lens or high density polyethylene (HDPE) condenser lens.
7. remote passive type Terahertz safety check imaging system according to claim 1, it is characterised in that the signal is adopted
Alarm module is included in collection and processing subsystem；
When the signal of suspicious violated thing is detected, by alarm signal send to remote passive type Terahertz safety check into
As the display terminal of device, the mobile terminal such as PC ends or mobile phone.
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| CN201611147192.4A CN106873045B (en) | 2016-12-13 | 2016-12-13 | A kind of remote passive type Terahertz safety check imaging system |
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| CN201611147192.4A CN106873045B (en) | 2016-12-13 | 2016-12-13 | A kind of remote passive type Terahertz safety check imaging system |
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| CN106873045B CN106873045B (en) | 2019-07-12 |
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Cited By (4)
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| CN109031448A (en) * | 2018-10-29 | 2018-12-18 | 苏州耶拿微电子有限公司 | Using the passive superconduction Terahertz human body safety check instrument of WR4 waveguide |
| CN109239795A (en) * | 2018-07-31 | 2019-01-18 | 苏州奥腾电子科技有限公司 | Safety check automated induction systems and its bootstrap technique |
| CN110031907A (en) * | 2019-04-18 | 2019-07-19 | 西安天和防务技术股份有限公司 | Optical mechaical scanning imaging system |
| CN117192636A (en) * | 2023-09-13 | 2023-12-08 | 国擎(山东)信息科技有限公司 | Handheld security inspection device and security inspection method based on terahertz technology |
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| CN117192636A (en) * | 2023-09-13 | 2023-12-08 | 国擎(山东)信息科技有限公司 | Handheld security inspection device and security inspection method based on terahertz technology |
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| CN106873045B (en) | 2019-07-12 |
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Denomination of invention: A Long Range Passive Terahertz Security Imaging System Effective date of registration: 20230519 Granted publication date: 20190712 Pledgee: CHINA ACADEMY OF AEROSPACE AERODYNAMICS Pledgor: BEIJING AEROSPACE YILIAN SCIENCE AND TECHNOLOGY DEVELOPMENT Co.,Ltd. Registration number: Y2023980041196 |
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Granted publication date: 20190712 Pledgee: CHINA ACADEMY OF AEROSPACE AERODYNAMICS Pledgor: BEIJING AEROSPACE YILIAN SCIENCE AND TECHNOLOGY DEVELOPMENT Co.,Ltd. Registration number: Y2023980041196 |