WO2022229431A1 - Système de balayage de sécurité et procédé de balayage d'un article - Google Patents

Système de balayage de sécurité et procédé de balayage d'un article Download PDF

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Publication number
WO2022229431A1
WO2022229431A1 PCT/EP2022/061568 EP2022061568W WO2022229431A1 WO 2022229431 A1 WO2022229431 A1 WO 2022229431A1 EP 2022061568 W EP2022061568 W EP 2022061568W WO 2022229431 A1 WO2022229431 A1 WO 2022229431A1
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WO
WIPO (PCT)
Prior art keywords
door
entrance
exit
zone
item
Prior art date
Application number
PCT/EP2022/061568
Other languages
English (en)
Inventor
Rasmus Thygesen
Original Assignee
Exruptive A/S
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Exruptive A/S filed Critical Exruptive A/S
Priority to EP22726657.4A priority Critical patent/EP4330734A1/fr
Publication of WO2022229431A1 publication Critical patent/WO2022229431A1/fr

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V5/00—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity
    • G01V5/20—Detecting prohibited goods, e.g. weapons, explosives, hazardous substances, contraband or smuggled objects
    • G01V5/22—Active interrogation, i.e. by irradiating objects or goods using external radiation sources, e.g. using gamma rays or cosmic rays

Definitions

  • the present invention relates to a security scanning system, and a method of scanning an item, such as a carry-on item, in particular scanning by use of at least one radiation source, such as X-ray.
  • carry-on items follow the person to whom they belong. Often a plurality of carry-on items is transported by the person on a small cart/trolley, e.g., together with the person's coat, scarf, etc.
  • carry-on items including coats and the like, are scanned one after the other by arranging each carry-on item on a conveyor system or in a screening bin on the conveyor.
  • the person is temporarily delivering the carry-on items to the checking facility, and the person waits until checking of the carry-on items are completed. Then the person may collect his/her items, arranged them on a small cart or trolley, and may continue to his/her destination. This is time consuming, and the items may be at risk of being damaged, especially if they do not fit into the screening bins.
  • carry-on items are moved through a scanning area on a conveyor unit where the scanning area is shielded by a curtain comprising a plurality of layers, such as three, four, five, or even more layers.
  • the plurality of layers is necessary to achieve sufficient shielding as some of the layers are moved in different directions when the items pass the curtain. Not all of the layers return to their initial position, when the item has passed. Thus, shielding may be insufficient, and items may be damaged due to collision between the item and the plurality of layers of the curtain.
  • an item or parts hereof may be removed from a screening bin when the screening bin with the item passes the curtain.
  • Prior art document US 2007/165777 discloses an inspection system for inspection of cargo containers.
  • a scanning tunnel has an entrance and an exit, a plurality of scanning entrance doors, each having an open position and a closed position, a plurality of scanning exit doors, each having an open position and a closed position.
  • a scanner is adapted to scan the contents of a container inside the scanning tunnel when at least one of the plurality of scanning entrance doors is in the closed position and at least one of the plurality of scanning exit doors is in the closed position.
  • a carrier carries the container through the tunnel.
  • US 2016/282319 discloses a scanning system for trace detection.
  • the scanning system includes a main body enclosing a scanning chamber, the main body including a chamber inlet; a transport system configured to move an article through the scanning chamber along a scanning path; and a door mechanism provided along the scanning path.
  • the door mechanism includes: a door frame mounted about the scanning path; at least one door panel movable relative to the door frame and being made of a radiation-shielding material; and a trace detector integrated into the at least one door panel.
  • a method for trace involves using trace detectors integrated into the door mechanism for trace detection while the object is moving along a scanning path passing through a scanning chamber of a scanning system.
  • JP H09 127021 discloses an X-ray inspection chamber surrounding a part of a conveyor. Shielding doors which shield the X-rays strongly and which are opened and shut freely and shielding curtains which shield the X-rays weakly are installed at opening parts.
  • the cargo inspected with low-energy X-rays is shielded from the X-rays weakly by the curtains, and it can be inspected quickly.
  • the cargo inspected a high-energy X-rays is shielded from the X- rays strongly by the shielding doors to prevent them from being leaked to the outside.
  • US 2013/112899 discloses a radiation protective slat arrangement comprising a guide and several radiation protective slats movably arranged along the guide.
  • the arrangement can be converted from an open state into a closed state by displacing and rotating the slats.
  • Adjacent slats are arranged to overlap each other and are articulated to each other.
  • US 3,980,889 discloses an article transfer and inspection apparatus comprising chamber defining means, substantially impermeable to x-rays; and x-ray source for directing x-rays to a first portion of said chamber; feed and extraction conveyor systems individually having at least a portion thereof outside the chamber and respectively serving to introduce and remove an article into and from the chamber, the feed conveyor system being operable at a first speed; an inspection conveyor system located between the feed and extraction conveyor systems and at least partly disposed at the chamber first portion, the inspection conveyor system being operable at a second speed at least equal to the first speed and serving to carry the article through the chamber first portion.
  • the invention provides a security scanning system configured to scan an item, the security scanning system comprising a scanning zone, an entrance into the scanning zone, an exit out of the scanning zone, at least one radiation source arranged to emit radiation towards the item in the scanning zone, at least one detector arranged to detect radiation through the item or reflected from the item in the scanning zone, and a transport structure configured to move the item in a transport direction through the entrance into the scanning zone and out of the scanning zone through the exit, the entrance comprising a first entrance door and a second entrance door, the exit comprising a first exit door and a second exit door, wherein the first entrance door is arranged at an entrance distance from the second entrance door thereby forming an entrance zone between the first and second entrance doors, and wherein the first exit door is arranged at an exit distance from the second exit door thereby forming an exit zone between the first and second exit doors, the security scanning system further comprising a controller configured to control the first and second entrance doors and the first and second exit doors so that one of the first and second entrance doors
  • the security scanning system comprises a scanning zone, in which at least one item, such as a carry-on item can be scanned.
  • the item may be single carry-on item or may be a trolley or cart on which one or more elements, such as one or more bags, a coat, an umbrella, and/or other personal belongings are arranged.
  • the system comprises at least one radiation source arranged to emit radiation towards the item in the scanning zone, and at least one detector arranged to detect radiation through the item or reflected from the item in the scanning zone to thereby perform a security scan of the at least one item.
  • the at least one radiation source comprise an X- ray source
  • the at least one detector may be configured to conduct e.g., transmission contrast radiography generating image data of the scanned items.
  • the system comprises an entrance into the scanning zone, and an exit out of the scanning zone. The entrance and the exit may be arranged to ensure complete blocking of radiation or at least considerably reducing the risk of emitted radiation, such as X-ray, escaping out of the entrance and the exit, respectively.
  • a transport structure is configured to move the at least one item in a transport direction through the entrance into the scanning zone, through the scanning zone, and out of the scanning zone through the exit.
  • the at least one item may be transported, such as conveyed, through the scanning zone on a cart/trolley which may save time for the person having his/her item(s) security scanned, as the person may position a cart/trolley with bag(s) and/or other belongings on the transport structure without moving the item(s) to a scanning bin. After scanning, the person may pick up the cart/trolley and move on.
  • the transport structure may comprise a conveyor, a belt structure, a track structure, or similar transport structure.
  • the transport structure may comprise a movable rack structure, e.g., attached to a track structure at the ceiling.
  • the item When hanging the item at the rack structure/attaching the item to the rack structure, the item may be moved through the entrance into the scanning zone and out of the scanning zone through the exit.
  • the entrance comprises a first entrance door and a second entrance door, which first and second entrance doors may be arranged transverse to the transport direction, when in a closed configuration. Furthermore, the first entrance door is arranged at an entrance distance from the second entrance door thereby forming an entrance zone between the first and second entrance doors.
  • the entrance zone may be of a size large enough to accommodate the trolley including one or more carry-on items.
  • the entrance distance in the transport direction may be larger than the size of the trolley to thereby provide an entrance zone large enough to accommodate a trolley with one or more carry-on items and e.g., a coat, an umbrella, and/or other items.
  • the exit comprises likewise a first exit door and a second exit door, preferably arranged transverse to the transport direction, when in a closed configuration, where the first exit door is arranged at an exit distance from the second exit door thereby forming an exit zone between the first and second exit doors.
  • the exit distance in the transport direction may likewise be larger than the size of a trolley to thereby provide an exit zone large enough to accommodate a trolley with one or more carry-on items and additional items.
  • the second entrance door and the first exit door being closer to the scanning zone than the first entrance door and the second exit door may be made of a radiation absorbing material such as, lead, stainless steel, or similar.
  • the first entrance door and the second exit door may likewise be made of a radiation absorbing material.
  • the security scanning system further comprises a controller configured to control the first and second entrance doors and the first and second exit doors so that one of the first and second entrance doors shields the entrance when the other one of the first and second entrance doors is at least partly open, and so that one of the first and second exit doors shields the exit when the other one of the first and second exit doors is at least partly open. Consequently, one of the entrance doors and one of the exits doors may always shield the entrance/ exit, respectively, when the other entrance door and other exit door is at least partly open, whereby it is not necessary to turn off the radiation source during use of the system.
  • items may continuously be moved through the entrance into the scanning zone, where it may be scanned, and out via the exit without turning off the radiation source as the controller controls the doors so that one of the first and second entrance doors shields the entrance when the other one of the first and second entrance doors is at least partly open, and so that one of the first and second exit doors shields the exit when the other one of the first and second exit doors is at least partly open.
  • the first and second entrance doors may be individually controlled to allow non-synchronous rotation of the first and second entrance doors.
  • the first and second exit door may likewise be individually controlled.
  • the first and second entrance doors, and the first and second exit doors may all be individually controlled. It should be understood, that all doors may be fully closed at the same time dependent on the control of the doors.
  • one of the first and second entrance/ exit door is at least 95%, such as 96%, such as 97%, such as 98%, such as 99%, such as 100% closed to thereby avoid or at least considerably reduce the risk of emitted radiation, such as X-ray, escaping out of the entrance/ exit, where 100% closed correspond to a fully closed door.
  • the entrance door When an entrance door is fully closed; i.e. 100% closed, the entrance door may be arranged in a position where entrance door spans across the transport structure transverse to the transport direction.
  • an exit door be arranged in a position where exit door spans across the transport structure transverse to the transport direction in the fully closed configuration.
  • each of the entrance and exit doors comprises a set of door blades comprising a right door blade and a left door blade, where a left door blade and a right door blade together may extend transverse to the transport direction in a closed configuration.
  • a right part of a left door blade of the first entrance door and left part of a right door blade of the first entrance door when seen in the transport direction, may be arranged adjacent to each other or with an overlapping section to thereby close the first entrance door.
  • the second entrance door and the first and second exit door may be closed in the same way.
  • a left door blade and a corresponding right door blade may together span across the transport structure transverse to the transport direction.
  • the left door blade and the right door blade may each span at least 50% of the spanning distance.
  • an overlap may be provided by the left and right door blades.
  • each of the door blades are rotatable arranged around a rotation axis to enable opening and closing of the first and second entrance doors and the first and second exit doors by rotation of the respective door blades.
  • the rotation axes of each set of door blades are substantially vertical and are arranged on opposite sides of the transport structure to facilitate rotation of each of the door blades allowing a 360 degrees rotation of each of the door blades.
  • opening and closing of an entrance door and of an exit door is achieved by rotation of the door blades.
  • the right and left door blades of the first entrance door span across the transport structure.
  • This position may be set as a rotation angle of 0 degrees.
  • the first entrance door may open more and more, until fully open.
  • the first entrance door may be closed again. After a rotation of 180 degrees, the first entrance door is closed, and the right and left door blade span across the transport structure.
  • the right and left door blades are rotated from 180 degrees to 270 degrees, the first entrance door may open more and more, until fully open.
  • the first entrance door When rotating the right and left door blades further from 270 degrees to 360 degrees, the first entrance door may be closed again.
  • a continuous opening and closing of the first entrance door may be achieved by continuously rotating the left and right door blades of the first entrance door.
  • the second entrance door and the first and second exit doors may be continuously opened and closed in the same way by continuously rotation of the respective right and left door blades.
  • a right door blade and a left door blade of an entrance door and of an exit door may advantageously be rotated at the same angle around the rotation axis, but with a direction of rotation opposite to each other, e.g., so that a right door blade is rotated clockwise, while the corresponding left door blade is rotated anti-clockwise or oppositely.
  • Each door blade may comprise a first and a second part, where the first and second parts may be positioned on opposite sides of the rotation axis.
  • the above example correspond to an embodiment where the door blades comprise a first and a second part positioned on opposite sides of the rotation axis.
  • the doors when the rotation axis is arranged also an edge of the door blade, the doors may only be closed at a rotation angle of 0 degree and 360 degrees, and not at an angle of 180 degrees.
  • first part and second part of a door blade may each be a single element, where the first part is arranged on one side of the rotation axis and where the second part is arranged on the opposite side of the rotation axis.
  • a rotation rod may be arranged in an opening in a transition part between the first and second part of the door blade, and subsequently attached to the transition part.
  • the first and second parts are two separate elements joined at a rotation section, where the rotation section is arranged for rotation around the rotation axis.
  • the first and second parts are attached to a rotation rod to allow rotation of the door blade around the rotation axis by rotation of the rotation rod.
  • each set of door blades are arranged on opposite sides of the transport structure to facilitate rotation of each of the door blades allowing a 360 degrees rotation of each of the door blades
  • opening and closing of the entrance doors and of the exits doors may be achieved by rotation of the door blades, while the first and second parts of the door blades on opposite sides of the rotation axis alternatingly are in a position transverse to the transport structure.
  • a right door blade and a left door blade may in a closed configuration overlap each other in a direction transverse to the transport direction. Consequently, it may be achieved that the zone at which the right and left door blade are arranged is still shielded when opening of the door is initiated, as the overlap may ensure shielding for a time period after initiating opening of the door.
  • Each of the door blades may be arranged for rotation at a substantially constant rotational speed.
  • the rotational speed may be controlled independently for each door blade to thereby allow non-synchronous rotation of at least some of the door blades.
  • each of the door blades may be arranged for rotation at substantially equal speed.
  • the door blades may rotate synchronously or non-synchronously at equal speed.
  • the transport structure may be configured to move the item at a transport speed being substantially constant.
  • the transport structure may further be configured for deceleration and/or acceleration to thereby change the transport speed.
  • the transport speed may be controlled by a separate transport controller.
  • the transport controller may form part of a control system for the security scanning system.
  • the controller configured to control the first and second entrance doors and the first and second exit doors may likewise form part of this control system.
  • the transport controller may as an example reduce the transport speed if it is detected that an item will collide with one of the first and second entrance doors or one the first and second exit doors if the speed of the transport structure is not reduced.
  • the security system may comprise a surveillance sensor arranged upstream the first entrance door relative to the transport direction, wherein the surveillance sensor is arranged to detect a distance between the item and the first entrance door.
  • the surveillance sensor may be in communication with the transport controller which may accelerate or decelerate the transport structure in case it is detected that the distance between the item and the first entrance door does not fit with the rotational speed of the door blades to thereby avoid a collision between the item and the door blades.
  • the security system may comprise a plurality of surveillance sensors, such as a surveillance sensor arranged upstream each of the first entrance door and first exit door or arranged upstream each of the first and second entrance doors and each of the first and second exit doors, where each of the surveillance sensors may be arranged for detection of a distance relative to one of the doors.
  • the surveillance sensor may be arranged in communication with an adjustment structure, where the adjustment structure may be arranged to adjust a position of the item on the transport structure.
  • the adjustment structure may comprise a gripper structure configured to engage the item and move the item to another position on the transport structure to thereby avoid collision between the item and one of the doors.
  • a periphery rotational speed of the right and left door blades may be substantially equal to the transport speed. It should be understood that a transport controller may additionally be arranged to allow deceleration and/or acceleration of the transport structure, and that the controller may additionally or alternatively change the rotational speed of the door blades.
  • Each of the door blades may form a substantially plate-shape element, such as a square shaped element extending from the floor to the ceiling, and transverse to the transport structure in the closed configuration.
  • each of the door blades may at opposite edges forms a first arch-shaped edge section and a second arch-shaped edge section.
  • the arch-shaped sections may be arranged to form an overlap between a right door blade and a left door blade.
  • each of the door blades may form a section of a cylinder, such as a half cylinder. It should by understood, that door blades in the form of plate-shaped elements and half cylinder elements may be combined, e.g., by providing the first and second entrance doors as plate-shaped element, and by providing the first and second exit doors as half cylinder elements.
  • Each of the entrance zone and the exit zone may form a zone area being larger than an item area, where the item area is an area of an item when projected onto the transport structure, whereby the entrance zone can accommodate the item when the first and second entrance doors are closed and whereby the exit zone can accommodate the item when the first and second exit doors are closed.
  • the zone area may be of a size large enough to accommodate a trolley with such typical items. For security reasons, the zone area may be larger than the item area, such as 10% larger, 15% larger, 20% larger, or even larger.
  • a size sensor may be arranged upstream the first entrance door.
  • the size sensor may be configured to detect the size of an item being moved towards the entrance zone. If the item is of a size too large to fit into the entrance zone, e.g., due to an umbrella being arranged transverse to a trolley, the size sensor may transmit a size signal to an size controller which may activate a removal structure to remove the item from the transport structure.
  • the size controller may form part of an overall control system for the security scanning system. Alternatively, the size controller may stop or decelerate the transport structure, e.g., to allow for manual removal of the specific item.
  • the security system may further comprise at least one monitoring sensor, where the at least one monitoring sensor may be arranged in at least one of the entrance zone, the scanning zone, and the exit zone.
  • a monitoring sensor may be arranged in each of the entrance zone, the scanning zone, and the exit zone.
  • the invention provides a method of security scanning an item by a security scanning system according to the first aspect, the method comprising the steps of:
  • each of the entrance doors and each of the exit doors comprises a right and a left door blade, which door blades are rotatable arranged around a rotation axis to enable opening and closing of the first and second entrance doors and the first and second exit doors by rotation of the respective door blades.
  • the step of opening a door and the step of closing a door may comprise as step of rotation the right and left door blade of the respective door.
  • each set of door blades are arranged on opposite sides of the transport structure to facilitate rotation of each of the door blades allowing a 360 degrees rotation of each of the door blades.
  • opening and closing of an entrance door and of an exit door is achieved by rotation of the door blades.
  • the first and second entrances doors and the first and second exit doors may be continuously rotated during operation to thereby continuously shield the scanning zone, as the controller controls the first and second entrance doors and the first and second exit doors so that one of the first and second entrance doors shields the entrance when the other one of the first and second entrance doors is at least partly open, and so that one of the first and second exit doors shields the exit when the other one of the first and second exit doors is at least partly open.
  • the scanning zone may be continuously shielded during operation to thereby allow continuous emission of radiation from the radiation source.
  • Fig. 1 illustrates an embodiment of a security scanning system
  • Fig. 2 illustrates parts of an embodiment of a security scanning system
  • Fig. 3 illustrates parts of an embodiment of a security scanning system
  • Fig. 4 illustrates the embodiment of Fig. 3 having the doors in a different position
  • Fig. 5 illustrates the embodiment of Figs. 3 and 4 in another view
  • Fig. 6 illustrates parts of an embodiment of a security scanning system
  • Fig. 7 illustrates parts an embodiment of a security scanning system
  • Fig. 8 illustrates a different view of the embodiment of Fig. 7
  • Fig. 9 illustrates the embodiment of Figs. 7 and 8 in another view.
  • Fig. 1 illustrates a security scanning system 1 comprises a scanning zone 2, in which scanning zone 2 at least one item 3, such as a carry-on item can be scanned.
  • the at least one item 3 is depicted as a trolley.
  • the system 1 comprises at least one radiation source 4 (schematically illustrated) which is arranged to emit radiation towards the item 3 in the scanning zone 2, and at least one detector 5 (schematically illustrated) which is arranged to detect radiation through the item 3 or reflected from the item 3 in the scanning zone 2 to thereby perform a security scan of the at least one item 3.
  • at least one radiation source 4 (schematically illustrated) which is arranged to emit radiation towards the item 3 in the scanning zone 2
  • at least one detector 5 (schematically illustrated) which is arranged to detect radiation through the item 3 or reflected from the item 3 in the scanning zone 2 to thereby perform a security scan of the at least one item 3.
  • the system 1 comprises an entrance 6 into the scanning zone 2, and an exit 7 out of the scanning zone 2.
  • the system further comprises a transport structure 8 which is configured to move the at least one item 5 in a transport direction indicated by the arrow A through the entrance 6 into the scanning zone 2 and out of the scanning zone 2 through the exit 7.
  • the transport structure 8 By use of the transport structure 8, the at least one item 3 can be moved into and out of the scanning zone 2 on a cart/trolley which may save time for the person having his/her item(s) security scanned.
  • the entrance 6 comprises a first entrance door 9 and a second entrance door 10, which first and second entrance doors 9, 10 are arranged transverse to the transport direction A in a closed configuration. Furthermore, the first entrance door 9 is arranged at an entrance distance indicated by the arrow XI from the second entrance door 10 thereby forming an entrance zone 6' between the first and second entrance doors 9,10.
  • the entrance zone 6' is of a size large enough to accommodate the trolley 3 including one or more carry-on items, such as a coat, an umbrella, or other items (not shown).
  • the exit 7 likewise comprises a first exit door 11 and a second exit door 12, preferably arranged transverse to the transport direction A, when in a closed configuration, where the first exit door 11 is arranged at an exit distance X2 from the second exit door 12 thereby forming an exit zone 7' between the first and second exit doors 11, 12.
  • the security scanning system 1 further comprises a controller 13 configured to control the first and second entrance doors 9, 10 and the first and second exit doors 11, 12 so that one of the first and second entrance doors 9, 10 shields the entrance 6 when the other one of the first and second entrance doors 9, 10 is at least partly open, and so that one of the first and second exit doors 11, 12 shields the exit 7 when the other one of the first and second exit doors 11, 12 is at least partly open.
  • a controller 13 configured to control the first and second entrance doors 9, 10 and the first and second exit doors 11, 12 so that one of the first and second entrance doors 9, 10 shields the entrance 6 when the other one of the first and second entrance doors 9, 10 is at least partly open, and so that one of the first and second exit doors 11, 12 shields the exit 7 when the other one of the first and second exit doors 11, 12 is at least partly open.
  • all door 9, 10, 11, 12 are closed; i.e. are in a closed configuration.
  • Each of the entrance and exit doors 9, 10, 11, 12 comprises a set of door blades comprising a right door blade 9A, 10A, 11A, 12A and a left door blade 9B, 10B, 11B, 12B (see also Fig. 2), where right and left are defined relative to the transport direction A.
  • each of the door blades 9A, 9B, 10A, 10B, 11A, 11B, 12A, 12B are rotatable arranged around a rotation axis R to enable opening and closing of the first and second entrance doors 9, 10 and the first and second exit doors 11, 12 by rotation of the respective door blades.
  • the rotation axes R of each set of door blades 9A, 9B, 10A, 10B, 11A, 11B, 12A, 12B are arranged on opposite sides of the transport structure 8 in the transport direction A to facilitate rotation of each of the door blades individually allowing a 360 degrees rotation of each of the door blades.
  • the right and left door blades 9A, 9B span the transport structure 8. This position may be set as a rotation angle of 0 degrees.
  • the first entrance door 9 opens more and more, until fully open.
  • rotating the right and left door blades 9A, 9D further from 90 degrees to 180 degrees the first entrance door 9 is closed again.
  • the first entrance door 9 After a rotation of 180 degrees, the first entrance door 9 is closed, and the right and left door blades 9A, 9B span the transport structure 8.
  • the first entrance door 9 again opens more and more, until fully open.
  • the first entrance door 9 is closed again.
  • a continuous opening and closing of the first entrance door 9 is achieved by continuously rotating the left and right door blades 9A, 9B of the first entrance door 9.
  • the second entrance door 10 and the first and second exit doors 11, 12 can continuously opened and closed in the same way by continuously rotation of the respective right and left door blades.
  • the right door blade 9A and the left door blade 9B may advantageous be rotated at the same angle but opposite to each other, so that the right door blade 9A is rotated clockwise, whereas the left door blade 9B is rotated anti-clockwise, or oppositely.
  • Each of the door blades 9A, 9B, 10A, 10B, 11A, 11B, 12A, 12B are arranged for rotation at a substantially constant rotational speed around the rotation axes R, where the speed for each of the door blades is substantially equal. Consequently, the door blades can be arranged for synchronously rotation. It should be understood, that each of the doors 9, 10, 11, 12 may be individually controlled allowing non-synchronous rotation of at least some of the doors. This provides a flexible opening and closing of the zones, as e.g., the first entrances doors 9A, 9B may be kept shut, while the second entrance doors 10A, 10B rotates.
  • the transport structure 8 is configured to move the items/trolleys 3 with a transport speed being substantially constant.
  • the left and right door blades 9A, 9B, 10A, 10B, 11A, 11B, 12A, 12B with a periphery speed being substantially equal to the transport speed, the items/trolleys 3 can automatically be conveyed through the entrance zone into the scanning zone and into and out of the exit zone without touching the door blades, when arranged at a traveling distance on the transport structure, where the traveling distance is adjusted to the transport speed.
  • a surveillance sensor 20 is arranged upstream the first entrance door 9 relative to the transport direction A to detect a distance between the item 3 and the first entrance door 9.
  • the surveillance sensor 20 is in communication with the controller 13 which may accelerate or decelerate the transport structure 8 to avoid a collision between the item 3 and the door blades 9A, 9B.
  • the security scanning system further comprises three monitoring sensors 22.
  • a monitoring sensor 22 is arranged in each of the entrance zone 6', the scanning zone 2, and the exit zone 7' to allowing monitoring of each of the zones individually.
  • Fig. 2 illustrates parts of an embodiment of a security scanning system 1.
  • the entrance 6 and the exit 7 are identical, whereby the parts illustrated in Fig. 2 illustrate both an entrance 6, and an exit 7.
  • Each of the entrance and exit doors 9, 10, 11, 12 comprises a set of door blades comprising a right door blade 9A, 10A, 11A, 12A and a left door blade 9B, 10B, 11B, 12B, where each of the door blades are rotatable arranged around a rotation axis R to enable opening and closing of the first and second entrance doors 9, 10 and the first and second exit doors 11, 12 by a 360 degrees rotation of the door blades.
  • each of the door blades 9A, 9B, 10A, 10B, 11A, 11B, 12A, 12B forms a substantially plate-shape element of a size where a right door blade 9A, 10A, 11A, 12A and a left door blade 9B, 10B, 11B, 12B abut each other at a middle portion of the transport structure 8 without an overlap in the closed configuration.
  • Figs. 3 and 4 illustrate parts of an alternative embodiment of a security scanning system 1.
  • the entrance 6 and the exit 7 are identical, whereby the parts illustrated in Figs. 3 and 4 illustrate both an entrance 6, and an exit 7.
  • Each of the entrance and exit doors 9, 10, 11, 12 comprises a set of door blades comprising a right door blade 9A, 10A, 11A, 12A and a left door blade 9B, 10B, 11B, 12B, where each of the door blades are rotatable arranged around a rotation axis R to enable opening and closing of the first and second entrance doors 9, 10 and the first and second exit doors 11, 12.
  • each of the door blades 9A, 9B, 10A, 10B, 11A, 11B, 12A, 12B forms a substantially plate-shape element forming at opposite edges arch-shaped edge sections 15.
  • the first entrance/exit door 9/11 is in the fully closed configuration, whereas the second entrance/exit door 10/12 is in a process of opening. Due to the overlap between the right door blade 10A, 12A and the left door blade 10B, 12B the entrance/exit 6/7 is still shielded.
  • the right door blade 10A, 12A and the left door blade 10B, 12B are rotated at the same angle but with a direction of rotation opposite to each other, so that the right door blade 10A, 12A is rotated clockwise, whereas the left door blade 10B, 12B is rotated anti-clockwise.
  • Fig. 4 the second entrance/exit door 10/12 has been opened further, whereas the first entrance/exit door 9/11 is in a process of closing.
  • the right door blade 9A, 11A is rotated clockwise, whereas the left door blade 9B, 11B is rotated anti-clockwise.
  • Fig. 5 illustrates the embodiment of Figs. 3 and 4 in another view.
  • the entrance and exit doors 9, 10, 11, 12 are all closed.
  • Fig. 6 illustrates parts of a further alternative embodiment of a security scanning system 1.
  • the security system 1 comprises the same elements and is similar to the security system illustrated in Figs. 1 and 2 with the exception, that the rotation axes R are positioned closer to the transport structure 8.
  • Figs. 7, 8, and 9 illustrate different view of parts an alternative embodiment of a security scanning system 1.
  • the entrance 6 and the exit 7 are identical, whereby the parts illustrated in Figs. 7, 8, and 9 illustrate both an entrance 6, and an exit 7.
  • Each of the entrance and exit doors 9, 10, 11, 12 comprises a set of door blades comprising a right door blade 9A, 10A, 11A, 12A and a left door blade 9B, 10B, 11B, 12B, where each of the door blades are rotatable arranged around a rotation axis R to enable opening and closing of the first and second entrance doors 9, 10 and the first and second exit doors 11, 12.
  • each of the door blades 9A, 9B, 10A, 10B, 11A, 11B, 12A, 12B is arch-shaped.
  • Each door blade is formed substantially as a section of a cylinder being of a size where a right door blade 9A, 10A, 11A, 12A and a left door blade 9B, 10B, 11B, 12B abut at a middle portion of the transport structure 8 without an overlap in the closed configuration.

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  • Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Power-Operated Mechanisms For Wings (AREA)

Abstract

La présente invention concerne un système de balayage de sécurité configuré pour balayer un article. Le système de balayage de sécurité comprend une zone de balayage, une entrée vers l'intérieur de la zone de balayage, une sortie vers l'extérieur de la zone de balayage, et une structure de transport configurée pour déplacer l'article vers l'intérieur de la zone de balayage, ainsi qu'à travers et vers l'extérieur de cette dernière. L'entrée comprend une première porte d'entrée et une seconde porte d'entrée, et la sortie comprend une première porte de sortie et une seconde porte de sortie. Le système de balayage de sécurité comprend en outre un dispositif de commande configuré pour commander les première et seconde portes d'entrée et les première et seconde portes de sortie de telle sorte que l'une des première et seconde portes d'entrée bloque l'entrée lorsque l'autre des première et seconde portes d'entrée est au moins partiellement ouverte, et de telle sorte que l'une des première et seconde portes de sortie bloque la sortie lorsque l'autre des première et seconde portes de sortie est au moins partiellement ouverte.
PCT/EP2022/061568 2021-04-29 2022-04-29 Système de balayage de sécurité et procédé de balayage d'un article WO2022229431A1 (fr)

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EP21171235.1 2021-04-29

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3980889A (en) 1974-04-08 1976-09-14 North American Philips Corporation Article transfer and inspection apparatus
JPH09127021A (ja) 1995-11-06 1997-05-16 Ishikawajima Harima Heavy Ind Co Ltd Ｘ線検査装置
US20070165777A1 (en) 2004-12-03 2007-07-19 Eg&G Middle East Container inspection system
US20130112899A1 (en) 2009-11-17 2013-05-09 Mavig Gmbh Radiation protective slat arrangement
US20160282319A1 (en) 2013-11-08 2016-09-29 Voti Inc. Scanning system for trace detection

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3980889A (en) 1974-04-08 1976-09-14 North American Philips Corporation Article transfer and inspection apparatus
JPH09127021A (ja) 1995-11-06 1997-05-16 Ishikawajima Harima Heavy Ind Co Ltd Ｘ線検査装置
US20070165777A1 (en) 2004-12-03 2007-07-19 Eg&G Middle East Container inspection system
US20130112899A1 (en) 2009-11-17 2013-05-09 Mavig Gmbh Radiation protective slat arrangement
US20160282319A1 (en) 2013-11-08 2016-09-29 Voti Inc. Scanning system for trace detection

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Publication number Publication date
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