CN109031286B - Terahertz security check instrument based on compressed sensing principle and terahertz imaging technology - Google Patents
Terahertz security check instrument based on compressed sensing principle and terahertz imaging technology Download PDFInfo
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- CN109031286B CN109031286B CN201811019365.3A CN201811019365A CN109031286B CN 109031286 B CN109031286 B CN 109031286B CN 201811019365 A CN201811019365 A CN 201811019365A CN 109031286 B CN109031286 B CN 109031286B
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- 238000005516 engineering process Methods 0.000 title claims abstract description 18
- 238000003384 imaging method Methods 0.000 title claims abstract description 15
- 238000001514 detection method Methods 0.000 claims abstract description 50
- 230000006835 compression Effects 0.000 claims abstract description 6
- 238000007906 compression Methods 0.000 claims abstract description 6
- 238000007689 inspection Methods 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 5
- 238000002955 isolation Methods 0.000 claims description 2
- 230000008447 perception Effects 0.000 claims description 2
- 230000003028 elevating effect Effects 0.000 claims 2
- 238000000926 separation method Methods 0.000 abstract description 4
- 241000282414 Homo sapiens Species 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/887—Radar or analogous systems specially adapted for specific applications for detection of concealed objects, e.g. contraband or weapons
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- General Physics & Mathematics (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention discloses a terahertz security check instrument based on a compression sensing principle and a terahertz imaging technology, which comprises a base and a support arranged above the base, wherein the front end of the support is welded with an upright post, a rear pull rod is inserted and arranged on the upright post, a front pull rod is inserted and arranged at the front end of the rear pull rod, a separation plate is fixedly arranged at the tail end of the front pull rod, a roller is fixedly arranged at the lower end of the base, and detection devices are fixedly arranged at the left end and the right end of the support. The terahertz security check instrument designed by the invention is composed of four detachable functional components, namely a base, a support, a console and a detection device, is convenient to move and transport, greatly improves the moving capacity of the device, can be temporarily transported to a place needing temporary detection by using a vehicle, improves the working range of the device, and can also effectively carry out omnibearing terahertz detection without dead angles on personnel to be detected.
Description
Technical Field
The invention relates to the technical field of design of terahertz security check instruments, in particular to a terahertz security check instrument based on a compressive sensing principle and a terahertz imaging technology.
Background
Since the terrorist attack becomes a part of the new century threatening the life safety of human beings, the arrangement of security devices in public facilities with large human traffic or importance has become a necessary means for preventing the terrorist attack. Traditional security check mainly relies on the manual work to carry out, but the manual work detects incompletely, therefore X-ray security check appearance begins to use widely gradually, but X-ray security check appearance itself has certain injury to the human body, consequently china also begins to adopt more advanced security check equipment to replace X-ray security check appearance step by step, wherein terahertz security check appearance just belongs to a safer security check equipment. The terahertz security check instrument mainly depends on a terahertz imaging technology for security check, and a large number of image signals need to be extracted in the detection process, so that the terahertz security check instrument generally adopts a compressed sensing technology for signal simplification, but the existing terahertz security check instrument also has certain defects, mainly the security check channel is generally narrow, and the existing terahertz security check instrument is mainly a passive security check instrument, so that the detection range is limited, the influence of the height can be avoided, and the existing security check channel belongs to a straight channel, so that the front area and the rear area of a user are difficult to effectively detect, a large number of detection dead angles are caused, and the detection accuracy is reduced. And current terahertz security check appearance still continues traditional integral type design, leads to the whole transport difficulty of equipment, and be not convenient for transportation and rearrangement to lead to its use place at first, be difficult to the user demand in the different emergency occasions of effectual coping.
If the novel terahertz security check which has no dead angle and is convenient to carry can be used for solving the problems, the terahertz security check instrument based on the compressed sensing principle and the terahertz imaging technology is provided for the purpose.
Disclosure of Invention
The invention aims to provide a terahertz security check instrument based on a compressed sensing principle and a terahertz imaging technology, and aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a terahertz security inspection instrument based on a compression perception principle and a terahertz imaging technology comprises a base and a support arranged above the base, wherein the front end of the support is welded and provided with a stand column, the stand column is provided with a rear pull rod in an inserting manner, the front end of the rear pull rod is provided with a front pull rod in an inserting manner, the tail end of the front pull rod is fixedly provided with a separation plate, the lower end of the base is fixedly provided with a roller, the left end and the right end of the support are fixedly provided with a detection device, the upper end and the lower end of the detection device are both fixedly provided with a concave mirror driving motor, the tail end of the concave mirror driving motor drives a concave mirror, the bottom of the detection device is fixedly provided with a lifting device, the driving tail end of the lifting device is fixedly provided with a movable base, the movable base is fixedly provided with a reflector driving motor, and the driving tail end of, and be annular array and install six at least speculums in the pivot, top terahertz signal receiver and below terahertz signal receiver are installed respectively to detection device's upper and lower both ends, and fixed mounting has terahertz signal generator on the detection device, the rear fixed mounting of support has the control cabinet, and the rear fixed mounting of control cabinet has the display, the security check appearance controller is installed to the below of control cabinet, and fixed mounting has input device on the control cabinet, the security check appearance controller respectively with input device, display, top terahertz signal receiver, below terahertz signal receiver, terahertz signal generator, concave mirror driving motor and speculum driving motor electric connection.
Preferably, the rear pull rod is provided with positioning holes at equal intervals, and the upper end of the upright post is in threaded connection with a positioning screw button matched with the positioning holes in the rear pull rod.
Preferably, the bottom of the support is hinged with an auxiliary inclined plate which is convenient for a person to be detected to move up and down at the position below the corresponding isolation plate, and an anti-skid rubber pad is arranged above the auxiliary inclined plate.
Preferably, the lifting device is a ball screw type electric push rod, and the controller of the security inspection instrument is a microcomputer.
Preferably, the input device comprises a keyboard, a mouse and a control knob, and the terahertz generator is a vacuum electronic device.
Preferably, the front end of the control console is fixedly provided with a metal detector electrically connected with the safety detector controller.
Preferably, the base, the support, the console and the detection device are fixed through bolts in a threaded mode respectively.
Compared with the prior art, the invention has the beneficial effects that: the terahertz security check instrument designed by the invention is composed of four detachable functional components, namely a base, a support, a console and a detection device, is convenient to move and transport, greatly improves the moving capacity of the device, can be temporarily transported to a place needing temporary detection by using a vehicle, improves the working range of the device, can effectively carry out omnibearing terahertz detection without dead angles on a person to be detected, can carry out passive detection, can carry out active detection by actively transmitting terahertz signals, and can be used in cooperation with other detection equipment, so that the security check range is greatly expanded, the security check strength is improved, and the terahertz security check instrument has high practical value.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a rear view of the structure of the present invention;
FIG. 3 is a schematic view of the assembly of the stand of the present invention;
FIG. 4 is an assembled view of the detecting device of the present invention.
In the figure: the device comprises a base 1, a support 2, a console 3, a detection device 4, a roller 5, a metal detector 6, a reflector driving motor 7, a concave mirror driving motor 8, a security inspection instrument controller 9, a reflector 10, a lifting device 11, an input device 12, a display 13, a separation plate 14, an auxiliary inclined plate 15, a column 16, a movable seat 17, a rear pull rod 18, a positioning screw button 19, a front pull rod 20, a concave mirror 21, a terahertz signal receiver above 22, a terahertz signal generator 23, a terahertz signal receiver below 24 and a rotating shaft 25.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art without creative efforts based on the technical solutions of the present invention belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: a terahertz security inspection instrument based on a compression sensing principle and a terahertz imaging technology comprises a base 1 and a support 2 arranged above the base 1, wherein the front end of the support 2 is welded and provided with an upright post 16, the upright post 16 is provided with a rear pull rod 18 in an inserting way, the front end of the rear pull rod 18 is provided with a front pull rod 20 in an inserting way, the tail end of the front pull rod 20 is fixedly provided with a separation plate 14, the lower end of the base 1 is fixedly provided with a roller 5, the left end and the right end of the support 2 are fixedly provided with a detection device 4, the upper end and the lower end of the detection device 4 are both fixedly provided with a concave mirror driving motor 8, the tail end of the concave mirror driving motor 8 is driven by a concave mirror 21, the bottom of the detection device 4 is fixedly provided with a lifting device 11, the driving tail end of the lifting device 11 is fixedly provided with a movable seat 17, the movable seat 17 is fixedly provided with a reflector driving motor, and at least six reflectors 10 are arranged on the rotating shaft 25 in an annular array, an upper terahertz signal receiver 22 and a lower terahertz signal receiver 24 are respectively arranged at the upper end and the lower end of the detection device 4, a terahertz signal generator 23 is fixedly arranged on the detection device 4, a control console 3 is fixedly arranged at the rear part of the support 2, a display 13 is fixedly arranged at the rear part of the control console 3, a security check instrument controller 9 is arranged below the control console 3, an input device 12 is fixedly arranged on the control console 3, and the security check instrument controller 9 is respectively and electrically connected with the input device 12, the display 13, the upper terahertz signal receiver 22, the lower terahertz signal receiver 24, the terahertz signal generator 23, the concave mirror driving motor 8 and the reflector driving motor 7.
Furthermore, positioning holes are equidistantly arranged on the rear pull rod 18, and a positioning screw button 19 matched with the positioning hole on the rear pull rod 18 is screwed on the upper end of the upright post 16.
Further, the bottom of support 2 is in the articulated supplementary hang plate 15 of installing convenient personnel of waiting to detect from top to bottom of the below department that corresponds division board 14, and the top of supplementary hang plate 15 is provided with anti-skidding rubber pad.
Further, the lifting device 11 is a ball screw type electric push rod, and the security check instrument controller 9 is a microcomputer.
Further, the input device 12 includes a keyboard, a mouse, and a control knob, and the terahertz generator 23 is a vacuum electronic device.
Further, the front end of the control console 3 is fixedly provided with a metal detector electrically connected with the safety detector controller 9.
Further, the base 1, the support 2, the console 3 and the detection device 4 are fixed through bolts in a threaded manner.
The working principle is as follows: the device comprises four functional units of base 1, support 2, control cabinet 3 and detection device 4, can unpack apart the transportation alone in the transportation to reduce the degree of difficulty of transportation, also reduced the degree of difficulty of transport, base 1 also can assist the transport in addition, thereby can make the device carry out the operation of removing temporarily, has better work flexibility. When the device is used, a person to be detected enters the support 2 along the auxiliary inclined plate 15 for detection, and under normal conditions, the person to be detected needs to rotate 180 degrees around the rear pull rod 18, so that the person to be detected can be detected in an all-around manner through the detection device 4, the reflecting mirror 10 and the concave mirror 21 can rotate and can be driven by the lifting device 11 to lift the reflecting mirror 10, a terahertz signal in a larger range can enter the upper terahertz signal receiver 22 or the lower terahertz signal receiver 24, the whole-body signal detection can be performed on the person to be detected with different heights, special accurate detection can be performed on different height positions, the device not only can passively receive the terahertz signal emitted by a human body, but also can actively generate the terahertz signal through the terahertz signal generator 23, therefore, the detection precision is improved, and meanwhile, the upper terahertz signal receiver 22 and the lower terahertz signal receiver 24 of the device both adopt a compression sensing technology to transmit detection signals, so that a large number of detection signals caused by the position change of the reflecting mirror 10 and the concave mirror 21 cannot cause overlarge influence on a transmission line after being compressed by the compression sensing technology, and the safety and the stability of the detection signal transmission process are guaranteed. The device can also be used with detection equipment such as a metal detector 6 in a synergic mode, so that the detection range is improved, the use is simple and convenient, the detection personnel do not need to be subjected to airtight detection, and meanwhile, the detection is free of dead angles, and therefore the device has high use value.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a terahertz security check appearance based on compression perception principle and terahertz imaging technique, includes base (1) and installs support (2) in base (1) top, its characterized in that: an upright post (16) is welded and mounted at the front end of the support (2), a rear pull rod (18) is installed on the upright post (16) in an inserted manner, a front pull rod (20) is installed at the front end of the rear pull rod (18) in an inserted manner, positioning holes are equidistantly formed in the rear pull rod (18), and a positioning screw button (19) matched with the positioning holes in the rear pull rod (18) is installed at the upper end of the upright post (16) in a threaded manner; the terminal fixed mounting of leading pull rod (20) has division board (14), and the lower extreme fixed mounting of base (1) has gyro wheel (5), both ends fixed mounting has detection device (4) about support (2), and the equal fixed mounting in upper and lower both ends of detection device (4) has concave mirror driving motor (8), the end drive of concave mirror driving motor (8) has concave mirror (21), and the bottom fixed mounting of detection device (4) has elevating gear (11), the terminal fixed mounting of drive of elevating gear (11) has removal seat (17), and removes and go up fixed mounting of seat (17) has speculum driving motor (7), the terminal fixed mounting of drive of speculum driving motor (7) has pivot (25), and is annular array on pivot (25) and installs six at least speculum (10), top terahertz signal receiver (22) and below terahertz signal receiver are installed respectively to the upper and lower both ends of detection device (4), and the lower extreme fixed mounting of detection device (4) has gyro wheel (5), the bottom fixed mounting of detection device (4) has The terahertz signal detection device comprises a terahertz signal receiver (24), wherein a terahertz signal generator (23) is fixedly mounted on a detection device (4), a control console (3) is fixedly mounted at the rear of a support (2), a display (13) is fixedly mounted at the rear of the control console (3), a security check instrument controller (9) is mounted below the control console (3), an input device (12) is fixedly mounted on the control console (3), and the security check instrument controller (9) is respectively electrically connected with the input device (12), the display (13), a top terahertz signal receiver (22), a lower terahertz signal receiver (24), the terahertz signal generator (23), a concave mirror driving motor (8) and a reflector driving motor (7).
2. The terahertz security inspection instrument based on the compressive sensing principle and the terahertz imaging technology as claimed in claim 1, wherein: the bottom of the support (2) is hinged with an auxiliary inclined plate (15) which is convenient for a person to be detected to move up and down at the position below the corresponding isolation plate (14), and an anti-skid rubber pad is arranged above the auxiliary inclined plate (15).
3. The terahertz security inspection instrument based on the compressive sensing principle and the terahertz imaging technology as claimed in claim 1, wherein: the lifting device (11) is a ball screw type electric push rod, and the security inspection instrument controller (9) is a microcomputer.
4. The terahertz security inspection instrument based on the compressive sensing principle and the terahertz imaging technology as claimed in claim 1, wherein: the input device (12) comprises a keyboard, a mouse and a control knob, and the terahertz generator (23) is a vacuum electronic device.
5. The terahertz security inspection instrument based on the compressive sensing principle and the terahertz imaging technology as claimed in claim 1, wherein: and a metal detector electrically connected with the safety inspection instrument controller (9) is fixedly mounted at the front end of the control console (3).
6. The terahertz security inspection instrument based on the compressive sensing principle and the terahertz imaging technology as claimed in claim 1, wherein: the base (1), the support (2), the console (3) and the detection device (4) are fixed through bolts in a screwed mode respectively.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811019365.3A CN109031286B (en) | 2018-09-03 | 2018-09-03 | Terahertz security check instrument based on compressed sensing principle and terahertz imaging technology |
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| CN201811019365.3A CN109031286B (en) | 2018-09-03 | 2018-09-03 | Terahertz security check instrument based on compressed sensing principle and terahertz imaging technology |
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| CN109031286A CN109031286A (en) | 2018-12-18 |
| CN109031286B true CN109031286B (en) | 2020-11-10 |
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| CN110554383B (en) * | 2019-09-04 | 2021-04-06 | 中国科学院电子学研究所 | MIMO annular array azimuth imaging method and device for microwave frequency band |
| CN112051215B (en) * | 2020-08-12 | 2024-03-15 | 山东闪亮智能科技有限公司 | Terahertz security inspection device |
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| CN102023144B (en) * | 2010-09-29 | 2012-07-04 | 首都师范大学 | Reflective terahertz (THz) wave real-time imaging scanning device |
| CN104932029B (en) * | 2015-06-12 | 2017-07-18 | 上海理工大学 | A kind of active Terahertz human body security check system device and method of adjustment |
| CN104914476A (en) * | 2015-07-01 | 2015-09-16 | 博康智能网络科技股份有限公司 | Rotary barrel type terahertz human body safety check scanning mechanism |
| CN205450308U (en) * | 2016-02-17 | 2016-08-10 | 长沙师范学院 | Terahertz is safety inspection image device now |
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Effective date of registration: 20200911 Address after: 215300 room 683, Xu Gong Qiao Road, Huaqiao Town, Kunshan, Suzhou, Jiangsu, 683 Applicant after: JIANGSU XINCI SUPERCONDUCTOR Co.,Ltd. Address before: 215131 No. 1 C912, Guantang Road, Xiangcheng Economic and Technological Development Zone, Suzhou City, Jiangsu Province (Caohu Science and Technology Park, Xijiao Dajiao) Applicant before: SUZHOU JENA MICROELECTRONICS Co.,Ltd. |
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