CN103197353A - Vertical mechanical microwave scanning active imaging personnel security inspection system - Google Patents
Vertical mechanical microwave scanning active imaging personnel security inspection system Download PDFInfo
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- CN103197353A CN103197353A CN2013101303596A CN201310130359A CN103197353A CN 103197353 A CN103197353 A CN 103197353A CN 2013101303596 A CN2013101303596 A CN 2013101303596A CN 201310130359 A CN201310130359 A CN 201310130359A CN 103197353 A CN103197353 A CN 103197353A
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Abstract
The invention belongs to the technical filed of security inspection and relates to a vertical mechanical microwave scanning active imaging personnel security inspection system. By means of creative design and through adoption of a pair of horizontal detection arrays which are separately arranged in parallel on two sides or the front side and the back side of an inspected person in a vertical mode, vertical scanning imaging for the inspected person is conducted. Each detection array is in a shape of a straight array or a bow shape with two inwards folded heads or an arc shape or the like. Compared with an existing adopted vertical detection array active imaging personnel security inspection system, the vertical mechanical microwave scanning active imaging personnel security inspection system has the advantages that the number of transmit-receive components of the detection arrays can be reduced greatly and a system structure is simplified. Not only is convenience brought to storage, transportation, installation and usage but also system cost can be reduced.
Description
Technical field
The invention belongs to the safety check technical field, relate to a kind of personnel's scanning imagery safe examination system.
Background technology
The present invention utilizes human body safety, penetrable normal material clothes but can be carried out scanning imagery to personnel by the micro-microwave (such as millimeter wave) that other higher density objects anti-(loosing) penetrates, obtain the image of article on human body surface and the body surface, the imaging inspection personal effects is realized personnel's contactless " perspective " safety check purpose.
At present, this type of imaging safe examination system all adopts the vertical sounding array to carry out the mechanical scanning of horizontal direction circular arc or phased array antenna front to carry out electricity and sweep, and system takes up room greatly, storage, transportation, inconvenience is installed, and is with high costs.
Summary of the invention
For addressing the above problem, the present invention utilizes the design of innovation, and the level detection array by adopting relative vertical sounding array much shorter carries out vertical scanning imaging up and down to tested personnel, can simplied system structure, reduce manufacturing cost and use cost.
The technical scheme that head it off of the present invention adopts is:
System is by the detection array unit, the signal acquisition process unit, image forming process unit, the control display unit, scanning servo unit and power supply unit etc. are partly formed, it is in place and send scan instruction that the operator sends scan instruction or the automatic detection personnel of system by the control display unit, realize the 360 degree scannings of the tested personnel whole body are covered by the vertical up-or-down movement of a pair of level detection array of scanning servo unit drives, the faint microwave signal of detection array emission particular modulation also receives echoed signal, through signal acquisition process, imaging processing, steps such as demonstration output realize the imaging to human body surface, demonstrate body surface and object on one's body
Clothes does not show.System has multiple privacy protection function, comprises only showing human body contour outline and the grading authorized management of subject image, privacy station diagram picture on one's body and special image form etc.
Wherein, after a pair of level detection array horizontal parallel placed the saturating ripple riser in system both sides, vertical movement scanned up and down under servo control mechanism drives.
Wherein, level detection array vertical scanning servo control mechanism adopts traction-type lifter or hydraulic up-down machine.
Wherein, detection array is shapes such as arc or arc in upright arrangement, two invagination.
Wherein, tested personnel stand in the middle scanning area of two level detection arrays, and the center of detection array and people's standpoint center are in perpendicular to craspedodrome and enter in the vertical plane of detector gate direction.
Wherein, for each transmitting-receiving subassembly antenna main lobe of making detection array in standing on detector gate by the scanning staff, transmitting-receiving subassembly according to its on detection array the position and make its antenna over against towards being installed by the scanning staff with respective angles, the transmitting-receiving subassembly antenna at middle part perpendicular to the riser forward facing to stand in the detector gate center by the scanning staff, transmitting-receiving subassembly from the middle part away from more more tilts to install to scanning staff's direction, guarantee that each antenna is over against tested personnel, obtain best main lobe echoed signal, but will draw back necessary interval to prevent from blocking between adjacent block the main lobe signal and to obtain with respect to the big as far as possible incident angle of human body surface to obtain more reflection echo away from the main lobe of the transmitting-receiving subassembly antenna at detection array center.
Wherein, disturb for preventing intermodule transmitting-receiving, control each transmitting-receiving subassembly and carry out quick timesharing and work at interval.
Wherein, the bottom of both sides detection array running space and top mounting shock absorber, the impact when the alleviation scanning array stops.
Wherein, safety governor is established in top or bottom, prevents from rushing to summit or sitting the end.
Wherein, scanning servo unit, signal acquisition process unit, image forming process unit and power supply unit place system top or side, and the control display unit can place near system side, or far put.
Wherein, the bottom pedal adopts the rigidity nonmetallic materials to make, and the position guarantees that a little more than vertical plates on both sides detection array can be to foot's imaging of people in the bottom.
Wherein, the wallboard material in the sweep limit of both sides is the electromagnetic wave transparent material of corresponding microwave section.
Wherein, the detection array housing is rigid material, the part-structure intensity that contact with vibroshock at two ends is up and down suitably strengthened assurance detection array shell rigidity when adapting to cushion at collision and slow down, and is unlikely to make because of sex change probe assembly impaired or reduction serviceable life and the reliability of carrying.
Wherein, in order to differentiate small objects, system can suitably increase emissive power as required in safe range, improve signal to noise ratio (S/N ratio) in order higher resolution to be provided; The Systems Operator can be converted to system more high-energy and high definition level temporarily when imaging was clear inadequately under normal configuration, and can switch back normal energy and sharpness level at any time.
Wherein, be the protection privacy, system arranges multiple privacy protection function.The acquiescence display mode is that human body contour outline adds the object image pattern: show at body configuration's profile and detect object image.Outside the system default pattern, also have two kinds of other mode of operations: survey auxiliary interpretation pattern and artificial interpretation pattern automatically.All show human body and subject image strictly according to the facts under these two kinds of patterns, do not have automatic detection alarm under the artificial interpretation pattern, find and judgement by artificial fully; Automatically surveying has face, chest and following private parts privacy position to hide or beat secret protections such as mosaic under the auxiliary judgment pattern, system to the object of imaging discovery by image and audible alarm; Health privacy position is as reporting to the police, and required the other side to take out and rechecked by on-the-spot security inspection person, or can check image through system manager scene or remote authorization; Under the default mode, also can change other patterns over to through system manager's mandate and check image.When the long-range installation of control display operation platform, small-sized touch screen flat panel computer can be joined in the scanning scene, basic functions such as switching on and shutting down, calibration, scanning and the safety check of system default pattern are provided, on-the-spot security inspection person can confirm the suspicious situation of discovery with the operator communication contact of Long-distance Control display operation platform, and carries out relevant safety check work according to indication.For strengthening secret protection, the user can be arranged to and face image can't be shown, have only producer just can authorize the tested personnel's that demonstration stored face image according to judicial needs; The not automatic memory scanning image of system, memory image need obtain system manager's mandate; Image adopts custom-designed special format document, can't not show on other have the computing machine of this special image software.
Wherein, for reducing the on-the-spot security inspection personnel, system can establish monitoring camera, loudspeaker and microphone, instructs tested personnel to cooperate safety check by remote system operator according to monitoring image operating system scanner uni, or instructs on-the-spot security inspection person to handle.The video monitoring picture is made appropriate Fuzzy Processing, and assurance can't be seen facial and body surface details clearly, or uses recognition of face software automatically to processing such as the people's face that enters detector gate hide, protects tested personnel's privacy.
Wherein, for reducing the safety check time, the tested person enters can not do in the detector gate and turns to, directly stand in forward on the left and right sides footprint forwards that the appropriateness of demarcating on the base plate separates, both hands upwards lift or open downwards and keep motionless, in order to check inboard arm and underarm region, after finishing, system scan leaves under safety inspector or the remote system operator indication at the scene.
Wherein, for reducing the quantity of transmitting-receiving subassembly on the detection array, reduce system cost, guarantee the front and back image quality, reduce the detector gate width, the tested person enters detector gate inner rotary member 90 degree towards a side detection array, stand on the left and right sides footprint forwards that the appropriateness of demarcating on the base plate separates, both hands upwards lift or open downwards and keep motionless, in order to check inboard arm and underarm region, safety inspector, remote system operator or system are left under the indication automatically at the scene after system scan is finished.
Wherein, system can establish the automatic speech prompting function, in when establishing sensor and finding to have the people to enter, send by inner loudspeaker and to have kept posture to accept the indication of scanning; After scanning was finished, system informed that by inner loudspeaker tested personnel leave away automatically.
As a preferred embodiment of the present invention, adopt pair of right and left to the arc level detection array of invagination and the traction-type lifter scanning servo mechanism that places the detector gate top.
Wherein, signal acquisition process unit and image forming process unit place the system top.
Wherein, power supply unit places the system side.
Wherein, the control display unit is installed on scanning device and exports a side.
Wherein, a pair of level detection array horizontal parallel hangs in system's vertical plates on both sides case, and vertical movement scans up and down under the servo control mechanism traction.
Wherein, the riser case is nonmetallic materials, and the riser of personnel's one side is used at system and adopted the electromagnetic wave transparent material of microwave section to make in the detector gate.
Wherein, scanning servo mechanism is made up of controller, traction machine, hoist ropes, angle sheave etc.
Wherein, detection array is the arc of middle part array, two invagination, and the middle part is longer, surpasses normal human's width, is used for the scanning imagery to the human body front and back; The both sides flap section is shorter, and the angled tested personnel that stand in the center in detector gate that slope inwardly are used for the scanning imagery to the human body both sides; The center of detection array and people's standpoint center are in the vertical plane perpendicular to vertical plates on both sides.
Wherein, wherein, for each transmitting-receiving subassembly antenna main lobe of making detection array in standing on detector gate by the scanning staff, transmitting-receiving subassembly according to its on detection array the position and make its antenna over against towards being installed by the scanning staff with respective angles, the transmitting-receiving subassembly antenna at middle part perpendicular to the riser forward facing to stand in the detector gate center by the scanning staff, the transmitting-receiving subassembly sky alignment scanning staff direction of detection array two ends flap section tilts to install, guarantee that each antenna is over against tested personnel, obtain best main lobe echoed signal, but will draw back necessary interval to prevent the blocking main lobe signal between adjacent block.
Wherein, traction machine connects the both sides detection array through angle sheave by hoist ropes, and the output torque of traction machine sends detection array to by hoist ropes, and driving force produces by the friction force between hoist ropes and the traction sheave.
Wherein, the both sides detection array lays respectively at top and bottom when not scanning, hoist ropes two head suspension detection array centre of gravity places, the middle part is wrapped on the traction sheave of traction machine, both sides gravity is in a basic balance, the weight differential of both sides hoist ropes and trailing cable can be ignored, and traction machine only needs very that miniwatt output can drive.
Wherein, the power supply of detection array and signal cable one end are suspended on the riser top, reserve the most enough excess length, hang on the detection array outside, and it is enough long to guarantee that detection array moves to lowermost end, the same elevator of configuration mode.
Wherein, both sides of the edge mounting guide rail in the riser case, the detection array two ends are led boots by slip or tumbling-type and are embedded guide rail, and the level detection array is moved up and down along vertical guide rail.
Wherein, vertical plates on both sides case bottom and top mounting shock absorber, the impact when the alleviation scanning array stops.
Wherein, safety governor is established in top or bottom, prevents from rushing to summit or sitting the end.
Wherein, the bottom pedal adopts the rigidity nonmetallic materials to make, and the position guarantees that a little more than vertical plates on both sides detection array can be to foot's imaging of people in the bottom.
Wherein, the detection array housing is rigid material, the part-structure intensity that contact with vibroshock at two ends is up and down suitably strengthened assurance detection array shell rigidity when adapting to cushion at collision and slow down, and is unlikely to make because of sex change probe assembly impaired or reduction serviceable life and the reliability of carrying.
Wherein, be the protection privacy, system arranges multiple privacy protection function.System provides default mode, two kinds of mode of operations of former chart-pattern, and uses particular image form and former figure to call the authority classification management mode.Outline mode: namely system surveys object on one's body automatically, only shows that human body contour outline and its go up the mode of operation of subject image and the directing object position of reporting to the police, and system detects the report to the police on-the-spot hand inspection in back or require the other side to take out the back reinspection of object.System also provides former chart-pattern, there is not automatic detection alarm under this pattern, find and judgement by artificial fully, but the user can't oneself control and show face image, and user's STOCHASTIC CONTROL display end can not use former chart-pattern, have only to authorize through the system manager just can to change former chart-pattern at the Long-distance Control display terminal and check image, and have only producer just can interim disposable authorized user to show certain the tested personnel's who has stored face scan image according to judicial needs; The not automatic memory scanning image of system, memory image need obtain system manager's mandate; Image adopts custom-designed special format document, can't not show on other have the computing machine of this special image software.
Wherein, for reducing the quantity of transmitting-receiving subassembly on the detection array, reduce system cost, guarantee the front and back image quality, reduce the detector gate width, the tested person enters detector gate inner rotary member 90 degree towards a side detection array, stand on the left and right sides footprint forwards that the appropriateness of demarcating on the base plate separates, both hands upwards lift or open downwards and keep motionless, in order to check inboard arm and underarm region, leave under safety inspector or the remote system operator indication at the scene after system scan is finished.
The invention has the beneficial effects as follows: by structural design and the multiple secret protection scheme of innovation; not only reduced manufacturing cost; each link such as transportation, storage, installation, use, maintenance is all more convenient; also reduced relevant cost; overcome existing Active Imaging rays safety detection apparatus take up an area of big, structure is heavy, transportation storage and shortcomings such as inconvenience are installed, and adapts to the application demand of personnel at all levels's imaging safety check.
The invention provides the Active Imaging safe examination system of present occupation of land minimum, help to solve most of safety check site spaces and be not enough to guarantee to have now the problem that this type of imaging rays safety detection apparatus is installed needs in batches, the upgrading of convenient existing non-imaging personnel safe examination system, imaging safety check technology is applied in personnel's safety check work, to stop only depending on metal detector gate and hand-held metal detector that personnel are carried out the huge potential safety hazard that safety check was brought at present, also made things convenient for imaging safety check technology to be widely used in the anti-smuggling drug law enforcement of frontier defense customs and antitheft other applications that waits of business unit.For the safety check of the big airport of flow of the people, frontier defense customs, communal facility, large-scale activity, because keeping the security check passage of sufficient amount to guarantee enough percent of pass at limited entrance space, native system is significant with the advantage that existing other imaging rays safety detection apparatus are compared on occupation of land is little, has solved a main bottleneck problem that upgrades to the imaging rays safety detection apparatus from existing metal detector gate.Simultaneously, because system architecture is simple, the transmitting-receiving subassembly quantity of system cost accounting maximum is less than the horizontal sweep system of existing orthogonal array greatly, has reduced relevant cost, help to solve imaging rays safety detection apparatus this key issue with high costs, be convenient to applying of imaging safe examination system.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is overall construction drawing of the present invention;
Fig. 2 is detection array and the transmitting-receiving subassembly synoptic diagram thereof of several common shape.
Embodiment
Provide the preferable case study on implementation of the present invention below in conjunction with accompanying drawing, to describe technical scheme of the present invention in detail.
As shown in Figure 1, a kind of millimeter wave mechanical scanning human body imaging rays safety detection apparatus, use the vertical movement of a pair of level detection array to scan, system partly is made up of a pair of detection array 1 in upright arrangement, signal acquisition process unit 2, image forming process unit 3, control display unit 4, scanning element 5 (comprising parts such as servocontrol 6, traction machine 7, hoist ropes 8, angle sheave 10) and power supply unit 9 etc.Tested personnel enter detector gate, stand facing the direction of travel in assigned address and lift arm and keep motionless, the operator sends scan instruction by the control display unit, drive left and right sides detection array by scanning servo mechanism and scan the 360 degree scanning coverings of the realization whole body up and down fast, the faint millimeter-wave signal of detection array emission particular modulation also receives echoed signal, realize to human body surface and the imaging of object on one's body that through steps such as signal acquisition process, imaging processing, demonstration outputs clothes does not show.
Be the protection privacy, system arranges multiple privacy protection function.Default mode is that human body contour outline adds the object image pattern: show the mode of operation that detects object image at body configuration's profile.Outside the system default pattern, also has artificial interpretation pattern.Do not have automatic detection alarm under the artificial interpretation pattern, show human body and object image (only face does not show or hides) fully, find and judgement by artificial.Under the default mode, also can change artificial mode over to through system manager's mandate and check image.When the long-range installation of control display operation platform, small-sized touch screen flat panel computer is joined at the scanning scene, basic functions such as switching on and shutting down, calibration, scanning and the safety check of system default pattern are provided, on-the-spot security inspection person can confirm the suspicious situation of discovery with the operator communication contact of Long-distance Control display operation platform, and carries out relevant safety check work according to indication.For strengthening secret protection, the system manager also can't remove face's secret protection covering or mosaic etc. and show face image, has only producer just can authorize according to judicial needs and shows the tested personnel's of memory image face image; The not automatic memory scanning image of system, memory image need obtain system manager's mandate; Image adopts custom-designed special format document, can't normally not show on other have the computing machine of this special image software.
Under the normal safety check program, tested personnel take out with other luggage and articles article in the clothes by the X-ray machine inspection before safety check, should not have clothing other things outward on one's body.During safety check, under safety inspector's indication, on the left and right sides footprint that the appropriateness that it is fixed that the tested person stands the base plate subscript is separated, both hands upwards lift or open downwards and keep posture motionless, and the operator starts scanning.Left and right sides detection array vertical movement is up or down respectively finished human body all scanning from top to bottom, and through signal acquisition process and imaging, image outputs to display terminal after treatment for operator's interpretation or system's automatic interpretation.As no problem, the tested person leaves the safety check zone; As find that suspicious item, operator indicate on-the-spot security inspection person to carry out hand inspection or require the tested person to take out being checked, require the tested person to carry out the imaging safety check again till unusual circumstance no longer (preventing also having other article under the article of top layer) then.
Claims (10)
1. vertical mechanical scanning microwave Active Imaging personnel safe examination system adopts a pair of level detection array mechanic scanning mode in the vertical direction, realizes the whole body of human body scanning imagery.
2. vertical mechanical scanning microwave Active Imaging personnel safe examination system according to claim 1, it is characterized in that system partly is made up of detection array unit, signal acquisition process unit, image forming process unit, control display unit, scanning servo unit and power supply unit etc.
3. vertical mechanical scanning microwave Active Imaging personnel safe examination system according to claim 2 is characterized in that the scanning servo unit is made up of controller, traction machine, hoist ropes, angle sheave etc.
4. vertical mechanical scanning microwave Active Imaging personnel safe examination system according to claim 3 is characterized in that a pair of level detection array horizontal parallel hangs in the saturating ripple riser casing of system both sides, each other counterweight; The power supply of detection array and signal cable one end are suspended on the riser top, reserve enough excess length, and the other end hangs on the detection array outside, and it is enough long to guarantee that detection array moves to lowermost end; The both sides detection array lays respectively at top and bottom when not scanning, hoist ropes two head suspension detection array centre of gravity places, the middle part is wrapped on the traction sheave of traction machine, both sides gravity is in a basic balance, the weight differential of both sides hoist ropes and trailing cable can be ignored, traction machine only need very miniwatt output can drive under the servo control mechanism traction up and down vertical movement scans.
5. vertical mechanical scanning microwave Active Imaging personnel safe examination system according to claim 1, it is characterized in that, the level detection array can be arc or arc in upright arrangement, the two ends invagination, and the center of detection array and people's standpoint center are in the vertical plane perpendicular to system's vertical plates on both sides.
6. vertical mechanical scanning microwave Active Imaging personnel safe examination system according to claim 3 is characterized in that, both sides of the edge mounting guide rail in the riser case, and the detection array two ends are embedded on the guide rail, and the level detection array is moved up and down along vertical guide rail.
7. vertical mechanical scanning microwave Active Imaging personnel safe examination system according to claim 3, it is characterized in that servo unit dress safety governor, vertical plates on both sides bottom and top mounting shock absorber, impact when the alleviation scanning array stops prevents from rushing to summit or sitting the end.
8. vertical mechanical scanning microwave Active Imaging personnel safe examination system according to claim 1, it is characterized in that, for reducing the safety check time, under safety inspector's indication, the tested person enters can not do in the system and turns to, and directly stands in forward on the left and right sides footprint forwards that the appropriateness of demarcating on the base plate separates.
9. vertical mechanical scanning microwave Active Imaging personnel safe examination system according to claim 2, it is characterized in that, for each transceiver module aerial signal main lobe of making detection array in standing on detector gate by the scanning staff, transceiver module according to its on detection array the position and with respective angles over against towards being installed by the scanning staff, the transceiver module at middle part perpendicular to the riser forward facing to stand in the detector gate center by the scanning staff, transceiver module from the middle part away from more more tilts to install to scanning staff's direction, guarantee that each antenna is over against towards tested personnel, obtain best main lobe echoed signal, thereby namely transceiver module or antenna to be installed in and guarantee on the detection array that each antenna main lobe scans target over against it according to the angle of its relative target in position with corresponding angle; But draw back the necessary interval between adjacent block, to prevent the blocking main lobe signal between adjacent block.
10. vertical mechanical scanning microwave Active Imaging personnel safe examination system according to claim 1; it is characterized in that; system takes differentiated control, image to adopt professional format to show storage, have only producer just can authorize multiple secret protection measures such as showing face image according to judicial needs, guarantees that tested personnel's privacy is protected.
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Application publication date: 20130710 |