CN117645112B

CN117645112B - Object inspection systems and object tracking methods

Info

Publication number: CN117645112B
Application number: CN202311649296.5A
Authority: CN
Inventors: 王浩; 林伟智; 杨旭; 孙洪波
Original assignee: Nuctech Co Ltd
Current assignee: Nuctech Co Ltd
Priority date: 2023-12-04
Filing date: 2023-12-04
Publication date: 2026-04-24
Anticipated expiration: 2043-12-04
Also published as: CN117645112A

Abstract

This disclosure provides an object inspection system relating to the fields of object inspection, radiation scanning, security inspection, or other fields. The system includes: a transport device comprising a first transport mechanism for transporting objects, wherein a first trigger mechanism is provided in the first transport mechanism for tracking the objects; and a radiation scanning device comprising a second transport mechanism configured to transport the objects from the first transport mechanism to a radiation scanning area, and to reverse a certain distance after stopping transport of the objects; wherein the first trigger mechanism is at a first distance from the entrance of the radiation scanning device, the first distance being greater than the distance traveled by any object on the second transport mechanism during its reverse rotation. This disclosure also provides an object tracking method.

Description

Object inspection system and object tracking method

Technical Field

The present disclosure relates to the field of object inspection, radiation scanning, security inspection, or other fields, and more particularly to an object inspection system and an object tracking method.

Background

Along with the increase of the field scale of logistics, security inspection, express delivery and the like, higher requirements are put forward on the speed of object inspection. For example, in an air logistics transmission system, a transportation device is responsible for transmitting baggage, tracking baggage, transmitting baggage ID information to a security check machine and its upper management system, and opening or releasing baggage according to the conclusion of a picture judging system. The security check machine is responsible for scanning the image, binding the baggage ID with the baggage image, and issuing a conclusion of the judgment of the graph to the transportation device. The existing whole object inspection system comprises devices from various manufacturers, such as a transportation device and a security inspection machine belonging to different manufacturers, which interact at respective entrances and exits.

In the process of implementing the inventive concept of the present disclosure, the inventor found that, in practical application, due to factors such as baggage transportation peak or insufficient configuration of a diagrammer, it is necessary to temporarily stop the transportation device, and stop the baggage in front of the sorting machine to wait for the diagramming. At this time, the security inspection machine is matched with the tape stop, and if the security inspection machine scans the picture, the tape rewinding jigsaw is needed in order to ensure the integrity of the scanned image. The rewinding process may touch the respective entrance and exit light barriers of the transportation device and the security inspection machine by mistake, so that the probability of luggage tracking failure is increased, and the objects cannot be accurately tracked and efficiently inspected.

Disclosure of Invention

In view of the above, the present disclosure provides an object inspection system and an object tracking method.

In one aspect of the disclosed embodiments, an object inspection system is provided, comprising a transport device including a first transport mechanism for transporting an object, wherein a first trigger mechanism is provided at the first transport mechanism for tracking the object, a radiation scanning device including a second transport mechanism configured to transport the object from the first transport mechanism to a radiation scanning area and to reverse a distance after stopping transporting the object, wherein the first trigger mechanism has a first distance from an entrance of the radiation scanning device that is greater than a movement distance of any object on the second transport mechanism during the reverse operation.

According to an embodiment of the present disclosure, the transport device is configured to control the operation of the second transport mechanism.

According to an embodiment of the present disclosure, the radiation scanning device is configured to be provided with only a second triggering mechanism, which is located between the first radiation beam surface and the second radiation beam surface of the radiation scanning device, the second triggering mechanism being used for tracking the object.

According to an embodiment of the disclosure, the transport device comprises a third transport mechanism for transporting the object from the second transport mechanism, the third transport mechanism comprising N transport sub-mechanisms, wherein each of the transport sub-mechanisms is configured to transport the object to a next transport sub-mechanism until the object leaves the third transport mechanism, N being an integer greater than or equal to 1, wherein a first transport sub-mechanism closest to the radiation scanning device is configured to operate in synchronization with the second transport mechanism.

According to an embodiment of the disclosure, a third triggering mechanism is provided on the first transportation sub-mechanism, the third triggering mechanism being configured to issue a start-stop signal when triggered by the object and a specific condition is met, the first transportation sub-mechanism being configured to perform a stop or run according to the start-stop signal.

According to an embodiment of the present disclosure, the third trigger mechanism is located at the end of the transport path provided by the first transport sub-mechanism.

According to an embodiment of the disclosure, the second transport sub-mechanism is a next transport sub-mechanism adjacent to the first transport sub-mechanism, and a fourth trigger mechanism is provided on the second transport sub-mechanism, and is used for tracking the object.

According to an embodiment of the disclosure, a fifth triggering mechanism is provided on the second transportation sub-mechanism, the fifth triggering mechanism being further away from the first transportation sub-mechanism than the fourth triggering mechanism, the fifth triggering mechanism being configured to track the object and to issue a start-stop signal when triggered by the object and a specific condition is met.

According to an embodiment of the present disclosure, the fourth trigger mechanism is located at a head end of the transport path provided by the second transport sub-mechanism, and the fifth trigger mechanism is located at a tail end of the transport path provided by the second transport sub-mechanism.

According to an embodiment of the disclosure, at least one sixth triggering mechanism is respectively arranged on the rest of the N transporting sub-mechanisms except the first transporting sub-mechanism and the second transporting sub-mechanism, and the sixth triggering mechanism is used for tracking the object and sending a start-stop signal when the sixth triggering mechanism is triggered by the object and meets a specific condition.

According to an embodiment of the present disclosure, the sixth triggering mechanism is provided on each of the remaining transport sub-mechanisms of the N transport sub-mechanisms except the first transport sub-mechanism and the second transport sub-mechanism at least at the end of the provided transport path.

Another aspect of the disclosed embodiments provides an object tracking method for an object inspection system, wherein a transporting device and a ray scanning device in the object inspection system are provided with M1 triggering mechanisms in total, the M1 triggering mechanisms are used as M1 tracking points for tracking the object, the method comprises the steps of distributing M2 tracking points in the transporting process of the object to be inspected, wherein the transporting device and the ray scanning device are configured to transport the object, M1 and M2 are integers greater than or equal to 1, M2 is less than or equal to M1, distributing M2 time windows for the object to reach each tracking point to the M2 tracking points, the time windows indicate a time period with a specific time length, and determining that the object is tracked if the object reaches the corresponding tracking point in each time window.

According to an embodiment of the disclosure, any one of the triggering mechanisms has an associated transport mechanism on the transport device or the ray scanning device, and for any one of the time windows, the method further comprises timing the consumed time forward within the time window when the transport mechanism associated with the tracking point corresponding to the time window is operating forward, timing the consumed time backward within the time window when the transport mechanism associated with the tracking point corresponding to the time window is operating backward, and stopping timing the consumed time within the time window when the transport mechanism associated with the tracking point corresponding to the time window is not operating.

According to an embodiment of the present disclosure, the method further comprises transporting the object to an unpacking inspection channel if the object does not reach a corresponding tracking point within any of the time windows.

The one or more embodiments described above have at least the following advantages:

1) The object inspection system comprises a conveying device and a ray scanning device, wherein a first trigger mechanism at an outlet of a first conveying mechanism in the conveying device is arranged at a position with a first distance from an inlet of the ray scanning device, and even in a reverse operation process of rewinding a jigsaw by a second conveying mechanism, as the first distance is larger than the moving distance of any object on the second conveying mechanism in the reverse operation process, the first trigger mechanism can be prevented from being touched by mistake, so that the effects of accurate tracking and efficient inspection are realized.

2) The object tracking method for the object inspection system is characterized in that a plurality of tracking points are distributed to an object to be inspected, time windows reaching all the tracking points are distributed in advance, the effect of prejudging object tracking is achieved, real-time tracking is performed in the actual object transportation process based on the triggering condition of the tracking points, and the object tracking accuracy is improved.

Drawings

The foregoing and other objects, features and advantages of the disclosure will be more apparent from the following description of embodiments of the disclosure with reference to the accompanying drawings, in which:

FIG. 1 schematically illustrates an overall block diagram of a prior art object inspection system;

FIG. 2 schematically illustrates a rewinding illustration of a prior art object inspection system;

FIG. 3 schematically illustrates an application scenario diagram of an object inspection system according to an embodiment of the present disclosure;

Fig. 4 schematically illustrates a block diagram of a sorting area according to an embodiment of the present disclosure;

FIG. 5 schematically illustrates a flow chart of an object inspection method according to an embodiment of the disclosure;

FIG. 6 schematically illustrates a block diagram of a portion of an object inspection system in accordance with further embodiments of the present disclosure;

FIG. 7 schematically illustrates a block diagram of an overall object inspection system in accordance with further embodiments of the present disclosure;

FIG. 8 schematically illustrates a flow chart of an object tracking method according to an embodiment of the present disclosure, and

Fig. 9 schematically illustrates a logic channel diagram implementing an object tracking method according to an embodiment of the present disclosure.

Reference numerals related to the above figures are as follows:

100. The object inspection system comprises 110, a conveying device, 111, a first conveying mechanism, 1111, a first trigger mechanism, 112, a third conveying mechanism, 1121, a third trigger mechanism, 1122, a fourth trigger mechanism, 1123, a fifth trigger mechanism, 1124, a sixth trigger mechanism, 113, a sorting machine, 114, a release branch, 1141, a seventh trigger mechanism A, 115, a detection opening branch, 1151, a seventh trigger mechanism B, 120, a ray scanning device, 121, a second trigger mechanism, 130, a control device, 140, an identification device, 150, a picture judging device, 200, an object, 201 and luggage.

It is noted that in the drawings for describing embodiments of the present disclosure, the dimensions of the overall/partial structure or the overall/partial region may be exaggerated or reduced for clarity, i.e., the drawings are not drawn to actual scale.

Detailed Description

Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. It should be understood that the description is only exemplary and is not intended to limit the scope of the present disclosure. In the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the present disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the concepts of the present disclosure.

In order to facilitate understanding of the technical solutions of the present disclosure, the technical terms involved in some embodiments are first defined as follows:

XIS, X-ray Inspection System, X-ray inspection system;

BHS Baggage HANDLING SYSTEM, baggage handling system;

ATR Automatic Target Recognition, automatic target recognition;

BPH Bags per Hour bags per hour.

Fig. 1 schematically shows an overall construction diagram of an object inspection system in the prior art. Fig. 2 schematically shows a rewinding illustration of an object inspection system of the prior art.

As shown in fig. 1 and 2, the BHS tracks the baggage 201 to the XIS entrance where the BHS passes the ID information of the baggage 201 to the XIS. After the baggage 201 is transferred to the XIS, the XIS starts tracking the baggage 201, and after generating a scanned image of the baggage 201, the XIS binds the ID of the baggage 201 and the scanned image and transfers the bound ID to the map judging system. When the baggage 201 leaves the XIS, the XIS transmits the ID of the baggage 201 back to the BHS, which continues to track the baggage 201 to the sorting gate and proceeds with corresponding open check or pass-through processing.

In practical applications, due to factors such as baggage transportation peaks or insufficient configuration of a diagrammer, the transmission system needs to be temporarily stopped, so that the baggage is stopped in front of the sorting machine to wait for diagramming. The transmission system stops and is conducted to the XIS, which is required to cooperate with the stop band. If the XIS is scanning the image at this time, the XIS needs to rewind the puzzle in order to ensure the integrity of the scanned image, i.e. after stopping the tape, it is reversed by a distance of about 10-25cm (the XIS reversing distances at different speeds are different). In the whole BHS and XIS tracking system, once the rewinding disturbance of the XIS is added, the success rate of the BHS to the baggage tracking is affected.

If BHS and XIS belong to two different manufacturers, the BHS and XIS interact at the entrance and exit. The gateway interaction method can meet the system requirement in the normal use process, but if the disturbance factor of the XIS rewinding jigsaw exists, the probability of the tracking failure of the baggage 201 is increased. The reason is that the baggage 201 rewinding process may erroneously touch the XIS entrance barrier and the line entrance barrier, and the baggage 201 that has passed through the entrance barrier may again trigger the XIS entrance barrier or the BHS exit barrier, as well as the XIS exit barrier and the BHS entrance barrier. These 4 light barriers are important judging factors in the process of tracking the baggage 201, and if the light barriers are repeatedly triggered by mistake, the tracking success rate is reduced.

Some embodiments of the present disclosure provide an object inspection system including a transport device and a radiation scanning device, in which a first trigger mechanism of an outlet of a first transport mechanism in the transport device is disposed at a position having a first distance from an inlet of the radiation scanning device, and even in a reverse operation process of rewinding a jigsaw by a second transport mechanism, since the first distance is greater than a moving distance of any object on the second transport mechanism in the reverse operation process, the first trigger mechanism is prevented from being touched by mistake, thereby achieving effects of accurate tracking and efficient inspection.

Other embodiments of the present disclosure provide an object tracking method for an object inspection system, which achieves a pre-judgment effect on object tracking by allocating a plurality of tracking points to an object to be inspected and pre-allocating time windows reaching each tracking point, and improves tracking accuracy of the object based on triggering conditions of the tracking points in real time tracking during actual transportation of the object.

Fig. 3 schematically illustrates an application scenario diagram of an object inspection system according to an embodiment of the present disclosure. It should be noted that fig. 3 is merely an example to which embodiments of the present disclosure may be applied to assist those skilled in the art in understanding the technical content of the present disclosure, but does not mean that embodiments of the present disclosure may not have other devices, systems, or other environments and scenarios.

As shown in fig. 3, the object inspection system 100 according to this embodiment includes a transportation device 110 and a security inspection machine. The security inspection machine includes a radiation scanning device 120 and a control device 130. The transport means 110 comprises a first transport mechanism 111 and a third transport mechanism 112 for transporting the object 200, the radiation scanning means 120 comprises a second transport mechanism (not shown in the figure) configured to transport the object 200 from the first transport mechanism 111 to a radiation scanning area (not shown in the figure) and to transport the object 200 to the third transport mechanism 112, and the control means 130 is in communicative connection with the transport means 110 and the radiation scanning means 120, wherein the transport means 110, the radiation scanning means 120 and the control means 130 employ a unified communication protocol, and wherein the transport means 110 is configured to control the operation of the second transport mechanism by means of the control means 130.

For example, any one of the first transporting mechanism 111, the second transporting mechanism, and the third transporting mechanism 112 may take the form of a conveyor belt, a conveyor roller, or a rail. For example, the transfer roller may comprise a motorized drum and a plurality of follower drums, which may be driven by a servo motor, with the drums being connected by a belt. The first, second and third transporting mechanisms 111, 112 may each transport the object 200 and/or the pallet to be inspected. As shown in fig. 3, the object 200 may be moved by the entrance of the first transport mechanism 111 along the dashed arrow, routed by the ray scanning device 120 to the sorting machine 113, and sorted to the individual sorting branches.

Illustratively, the security check machine may include a control device 130, a housing, a radiation scanning device 120, and a second transport mechanism. The security inspection machine shell forms a containing space for installing and protecting each functional component therein. An inspection channel is arranged in the security inspection machine shell, and a second conveying mechanism, such as a belt conveyor, is arranged in the inspection channel. Wherein, set up the security inspection entry and the security inspection export at the both ends of intercommunication second transport mechanism both ends respectively at the both ends of security inspection machine shell. A radiation scanning device 120 is arranged in the examination path for imaging the object 200 to be examined in a radiation scanning zone by emitting an X-ray beam.

For example, the radiation scanning apparatus 120 may include one or more than one radiation source adapted to generate an X-ray beam. The radiation scanning device 120 may also include a detector. The radiation source emits radiation toward the object 200 and the detector detects the radiation after having acted on the object 200, so that an inspection of the object 200 can be completed. For example, an X-ray source emits radiation toward an object 200 being transported over an examination path, and a detector detects the radiation transmitted through the object 200 to obtain a scanned image. For another example, a plurality of radiation sources time-divisionally emit X-rays from a plurality of angles toward the object 200 and detect radiation transmitted through the object 200 each time, and a scanned image of the object 200 is formed by processing the detection signals.

In some embodiments, the control device 130 may be implemented by a PLC (Programmable Logic Controller ). The control device 130 is communicatively connected to the transport device 110 and the radiation scanning device 120 via a network. The media used by the network to provide the communications links may include various connection types, such as wired, wireless communications links, or fiber optic cables, etc. As a unified communication protocol, PPI communication protocol, MPI (multipoint interface) communication protocol, profinet communication protocol, etc. may be used. The programmable controller consists of CPU, instruction and data memory, I/O interface, power source, digital-analog conversion and other functional units, and has powerful logic operation function and capacity of adapting to industrial control environment. In other embodiments, a microprocessor, computer, server, or the like may also be employed as the control device 130.

In some embodiments, the control device 130 may issue control instructions to the transport device 110 and the radiation scanning device 120, such as controlling the start and stop of each transport mechanism, transport speed, radiation emission and reception, and the like. For example, several triggering mechanisms, such as light barriers, may be disposed on the transportation device 110 and the radiation scanning device 120 to track the object 200, and trigger the photoelectric correlation sensor included in the light barrier after the object 200 reaches the light barrier and send a triggering signal to the control device 130. The control device 130 records the current position of the object 200 after receiving the trigger signal corresponding to the light barrier. It should be noted that, the trigger signal may be directly or indirectly sent to the control device 130, and indirectly refers to that the trigger signal is collected by a control module on the transportation device 110 and then sent to the control device 130 by the control module.

By way of example, the object 200 may include a vehicle, a container, luggage 201, or other items such as in a security check scene, such as various materials in a materials analysis scene.

In the related art, in the automatic transformation of an actual goods yard, the problem that a security inspection machine manufacturer and a line body manufacturer are about whether the security inspection machine rewinds the jigsaw often generates divergence. The security inspection machine manufacturer considers package scanning image integrity, when the security inspection machine is required to stop taking, rewinding jigsaw is carried out, the line body manufacturer considers package tracking stability, the security inspection machine is hoped to avoid rewinding, and the package scanning image integrity and the line body manufacturer are difficult to reconcile. The existing solutions adopted in most sites are that a security inspection machine cancels rewinding jigsaw, and incomplete images caused by tape stopping are processed according to open inspection. However, this is not a perfect solution, and for sites with limited field conditions, which require frequent stoppages, a proportion of packages may be taken to the pick-up side.

In some embodiments, for example, the transport device 110 may send control requests to the control device 130 to control operation of the second transport mechanism, including start, stop, and acceleration and deceleration, among others. Thus, through the integrated design, the integrated control of the conveying device 110 and the conveying mechanism (namely the second conveying mechanism) of the security inspection machine can be realized, the conveying operation of the object 200 between the conveying device and the second conveying mechanism is coordinated, and the pause and delay when the two conveying mechanisms are used for conveying the object 200 are reduced. In tracking the object 200, through the integrated design, the transportation path and speed of the object 200 can be accurately controlled by continuously positioning the object 200, so that position misjudgment is reduced.

In the related art, for large-scale inspection requirements in the fields of logistics, security inspection, express delivery and the like, manual work is difficult to meet, although a scheme for carrying out system transformation by technical means of automatic code scanning, package tracking, automatic sorting, centralized picture judgment and the like exists. However, after the system is modified, the object inspection passing rate is improved greatly compared with a manual mode, but the object inspection passing rate has a plurality of problems. For example, the security check machine, the automatic code scanning system, the package tracking and sorting system and the centralized picture judging system are respectively provided by different manufacturers. Therefore, the interconnection interfaces among different systems are required to be increased, project period and cost are influenced, user cost is indirectly influenced, maintenance work is influenced, liability definition is troublesome, and a later system upgrading aspect is influenced, and related liability main body scope is increased, so that a plurality of related main bodies are required to be coordinated.

According to the embodiment of the disclosure, an integrated object inspection system 100 is provided, in which a transportation device 110, a radiation scanning device 120 and a control device 130 are connected by adopting a unified communication protocol to implement an integrated solution, and the transportation device 110 is configured to control the operation of a second transportation mechanism by the control device 130 to implement unified transportation control of an object 200 in an inspection process, so that there is no need to increase interconnection interfaces between different systems, maintenance and upgrade convenience are improved, and the mutual influence of the transportation device 110 and the radiation scanning device 120 can be avoided to implement the effects of accurate tracking and efficient inspection.

For example, in the transportation and tracking process of objects, the second transportation mechanism is started and stopped under the control of the transportation device, the second transportation mechanism is used as a part of the wire body, when the jigsaw is required to be rewound, the situation that the rewinding is controlled by the transportation device and the mutual influence can not occur is avoided, and therefore accurate tracking can be achieved, and the inspection efficiency and accuracy are improved.

In some embodiments, the object inspection system 100 further includes a graph determining device 150, where the graph determining device 150 is at least communicatively connected to the radiation scanning device 120 using a unified communication protocol, and the graph determining device 150 is configured to obtain a scanned image obtained by the radiation scanning device 120 scanning the object 200, and obtain a graph conclusion of the scanned image.

For example, in security inspection in public places such as highways, railway stations, airports, and the like, the radiation scanning device 120 obtains a scanned image of the baggage 201 in a radiation scanning area. The scanned image may then be sent directly by the radiation scanning device 120 to the image determining device 150, or the scanned image may be obtained by the control device 130 and then sent to the image determining device 150. Then, the image judging device 150 can be allocated to a security inspector for image interpretation, and the image inspector judges the X-ray image according to the X-ray image per se and by personal experience and gives an interpretation conclusion. The image judging device 150 can also call an automatic image judging system to recognize the scanned image, and automatically obtain an image judging conclusion. The decision graph includes whether contraband is contained. The graph interpretation means 150 may display scanned image information and graph interpretation results.

According to the embodiment of the disclosure, the graph judging device 150, the control device 130, the transportation device 110 and the ray scanning device 120 adopt a unified communication protocol, so that unified interfaces and protocol standardization among the devices are realized, the compatibility problem of communication among the devices is reduced, and the speed and the integrity of information obtained by the graph judging device 150 are improved.

In some embodiments, the object inspection system 100 further includes an identification device 140, the identification device 140 being disposed on the path of the first transport mechanism 111 for transporting the object 200 and communicatively coupled to at least the transport device 110 using a unified communication protocol, the identification device 140 being configured to scan the tag of the object 200 passing through its identification area to generate a second identification and to send the second identification to the transport device 110, the second identification being used to record the object 200.

For example, the object 200 may be attached with a bar code or two-dimensional code label, and the identification device 140 may generate a second identifier by scanning the label and transmit the second identifier to the transportation device 110 to facilitate tracking of the identified object. The transportation device 110 may be directly transmitted to the transportation device 110, or may be transmitted to the control device 130, where the control device 130 performs recording and data processing according to the second identifier, and generates a corresponding control instruction to the transportation device 110.

In some embodiments, the transport device 110 is configured to generate a first identifier for the object 200 and to transmit the first identifier to the radiation scanning device 120 when the object 200 triggers a second trigger mechanism 121 on the radiation scanning device 120, wherein the second trigger mechanism 121 is located between a first radiation beam and a second radiation beam of the radiation scanning device 120, and wherein the radiation scanning device 120 is configured to transmit the first identifier and a scanned image of the object 200 to the map determining device 150.

For example, the second triggering mechanism 121 includes a photoelectric correlation sensor having a transmitting end and a receiving end, wherein the transmitting end emits red light or infrared light, and the receiving end receives the red light or infrared light, and cuts off the red light or infrared light when the object 200 passes through. In this embodiment, the ray scanning device 120 may directly send the first identifier and the scanned image of the object 200 to the image determining device 150, or the control device 130 may replace the ray scanning device 120 to receive the first identifier, obtain the scanned image, and send the scanned image to the image determining device 150. Wherein the first identifier is used for the object inspection system 100 itself, such as the transporter 110 or the controller 130, to track the object 200, and the second identifier is used for the inspection site to record tracking and transportation of the object 200.

According to an embodiment of the present disclosure, the position of the second triggering mechanism 121 is selected such that the transportation device 110 and the radiation scanning device 120 interact with information, avoiding a situation in which tracking is inaccurate during rewinding.

In some embodiments, the transportation device 110 is configured to send the first identifier and the second identifier of the object 200 to the radiation scanning device 120 after receiving the second identifier sent by the identification device 140, and the radiation scanning device 120 is configured to send the first identifier, the second identifier, and the scanned image of the object 200 to the graph determining device 150. So that the image determining apparatus 150 can obtain and display the complete object 200 information.

In some embodiments, the transporter 110 further includes a sorter 113 coupled to the third transporter 112, the transporter 110 configured to obtain a first identification and map conclusion of the object 200, and control the sorter 113 to sort the object 200 based on the first identification and map conclusion of the object 200.

For example, the third transporting mechanism 112 is provided with a triggering mechanism for tracking the objects, when the objects 200 reach the sorting machine 113, the graph judging device 150 sends the objects to the control device 130, and the control device 130 generates a sorting control instruction to the transporting device 110 based on the first identification and graph judging conclusion of the objects 200, so as to drive the sorting machine 113 to perform corresponding sorting operation.

Fig. 4 schematically illustrates a block diagram of a sorting area according to an embodiment of the present disclosure.

In some embodiments, the transporting device 110 further includes at least one sorting branch connected to the sorting machine 113, the third transporting mechanism 112 is provided with a sixth triggering mechanism 1124, each sorting branch is provided with a seventh triggering mechanism, the control device 130 is configured to verify the sorting result according to a time difference of the seventh triggering mechanisms of the sixth triggering mechanism 1124 and the target sorting branch, which are triggered by the object 200 in sequence, and the target sorting branch is determined according to the first identifier and the graph conclusion of the object 200.

Referring to fig. 3 and 4, the objects 200 are transported from the third transporting mechanism 112 to the sorting machine 113, the sorting machine 113 performs sorting according to the instruction of the control device 130, if the objects 200 are safe, the objects directly enter the release branch 114, and if the objects 200 are suspicious, the objects are sorted and then transported to the unpacking branch 115 for further transportation, so that the suspicious objects 200 can be unpacked and inspected later.

For example, during an inspection of the item of baggage 201, after the item of baggage 201 has triggered the light barrier in the sixth trigger mechanism 1124, the control device 130 initiates a corresponding timing based on the first and second identifications of the item of baggage 201. If the target sorting leg is the discharge leg 114, the timing is stopped when the baggage 201 triggers the seventh triggering mechanism A-1141 thereon.

In some embodiments, the control device 130 is configured to control the sorter 113 to stop operating when the time difference exceeds a preset threshold.

For example, when the sorting machine 113 sorts the baggage 201, the baggage 201 is jammed, the operation is stopped, or the sorting is wrong, so that the baggage 201 cannot reach the target sorting branch for a long time, the time difference exceeds a preset threshold (such as 30 seconds, which is only an example), and the operation of the sorting machine 113 is stopped in time for checking reasons.

In some embodiments, the sorting leg is configured to transport the object 200 thereon to a designated location, and the control device 130 is configured to control the non-target sorting leg to stop transporting when the object 200 triggers the seventh trigger mechanism of the non-target sorting leg.

The target sorting leg of the baggage 201 is, for example, the discharge leg 114 but is sorted to the open-check leg 115, and the seventh triggering mechanism B-1151 of the open-check leg 115 is triggered. Whether or not the time difference is within the preset threshold, the open-check branch 115 is stopped to continue transporting the baggage 201, and the error is corrected in time. In addition, the operation of the sorter 113 may be stopped together so as not to cause accumulation.

Taking an airport as an example, when a package passes through the sorting machine 113, the sorting machine 113 distributes the package to the sorting branch 115 according to instructions, if the sorting machine 113 has abnormal package distribution, the sorting machine 113 may cause the sorting package to be misplaced to the release branch 114, which is a serious safety problem in an airport freight system.

According to the embodiment of the disclosure, secondary verification processing before and after package sorting is provided, so that the package is ensured to enter a correct branch. Referring to fig. 4, the package entering sorter 113 is continuously tracked and is determined whether it enters the corresponding open or clear leg 114 by the clear direction and open direction light barrier information. If the open check package enters the release leg 114, the system will immediately stop and alert the security personnel to proceed with the corresponding process.

Embodiments of the various devices in the object inspection system 100, as well as the object inspection process, are further described in conjunction with the above embodiments and fig. 3 and 4.

In some embodiments, referring to fig. 3, the transporter 110 may be a BHS, the first transporter 111 an entrance BHS, and may include 2 sections of 1 meter long conveyor belt that may perform a bag pulling function to pull the package spacing to the system required package spacing, e.g., 0.5 meter. Specifically, after detecting that one object 200 is sent out through the light barrier, waiting for a certain time to send out the next object 200 again, and realizing pulling the bag.

The identification device 140 may include an ATR automatic code scanning system located at the front end of the XIS, using the AliS system of SICK (five-sided scanning), riding on the entrance conveyor. Package barcode information (i.e., a second identifier) may be obtained and transferred via the BHS interface in response to an XIS (radiation scanning device 120) request. The BHS directly or indirectly (e.g., through the control device 130) receives the package barcode information of the ATR automatic code scanning system, tracks the package, and transmits the barcode information to the XIS at a fixed position (the position of the second trigger mechanism 121), so that the XIS can bind the package image with the package barcode information conveniently.

The XIS transmits and scans the package, transmits the X-ray image and the package bar code information to a remote graph judging system through a network, and feeds back the package bar code information and graph judging conclusion to the BHS interface.

The image determining device 150 may include a local image determining system or a remote image determining system, and is interconnected with the XIS through a network to implement functions of X-ray image distribution, storage, remote image determining, etc.

The third transport mechanism 112 serves as an exit BHS and is located at the rear end of the XIS and includes several conveyor sections (custom configured according to site requirements), a1 meter sorter 113, a turn conveyor section, and a return conveyor section (by way of example only). Packages from the XIS may be received and released and sorted according to the decision. And continuously tracking the released and checked packages to ensure that the released and checked packages are in corresponding branches.

In some embodiments, the control device 130 is communicatively coupled to the identification device 140 and the map determining device 150, and the control device 130 is configured to receive status information for each of the transport device 110, the radiation scanning device 120, and the identification device 140, and to send the status information to the map determining device 150 for processing, the status information indicating the operation of the corresponding device.

Illustratively, the line body (including the first conveying mechanism 111, the sorting machine 113, the third conveying mechanism 112 and the sorting branch), the security inspection machine and the graph judging device 150 interact with depth data, and information such as a security inspection machine state, a package tracking state, a package sorting state, a sorting machine 113 state and the like can be displayed on a display interface of the graph judging device 150. For example, the display interface of the graph determining apparatus 150 may perform security check query and device management, and display information of one or more fields, such as a bill number, a scanned image, a current location, a graph determining conclusion, a graph determining time, a sorting result, an abnormal sorting result, and a sorting status, of each baggage 201.

According to the embodiment of the disclosure, the line body, the security inspection machine and the image judging device 150 share information, so that the image judging device 150 can obtain the comprehensive information of the object inspection system 100 and the object 200, and more accurate image analysis and equipment management can be performed.

Based on the above object inspection system 100, some embodiments of the present disclosure also provide an object inspection method. Fig. 5 schematically shows a flowchart of an object inspection method according to an embodiment of the present disclosure.

In operation S510, the transporting device 110 is caused to transport the object 200, wherein the transporting device 110 includes a first transporting mechanism 111 and a third transporting mechanism 112 that transport the object 200;

In operation S520, the second transporting mechanism in the radiation scanning apparatus 120 is caused to transport the object 200 from the first transporting mechanism 111 to the radiation scanning area and transport the object 200 to the third transporting mechanism 112, and

In operation S530, the transport device 110 is caused to control the operation of the second transport mechanism by the control device 130, wherein the control device 130 is communicatively connected to the transport device 110 and the radiation scanning device 120, and the transport device 110, the radiation scanning device 120 and the control device 130 adopt a unified communication protocol.

In some embodiments, the image determining device 150 is caused to acquire a scanned image obtained by scanning the object 200 by the radiation scanning device 120, and to obtain a graph conclusion of the scanned image. The image determining device 150 is at least in communication with the radiation scanning device 120 using a unified communication protocol.

In some embodiments, the transport device 110 is caused to generate a first identifier for the object 200 and to transmit the first identifier to the radiation scanning device 120 when the object 200 triggers a second trigger mechanism 121 on the radiation scanning device 120, wherein the second trigger mechanism 121 is located between a first radiation beam and a second radiation beam of the radiation scanning device 120, and the radiation scanning device 120 is caused to transmit the first identifier and a scanned image of the object 200 to the map determining device 150.

In some embodiments, having the identification device 140 scan the tag of the object 200 passing through its identification area generates a second identification and sends the second identification to the transport device 110, which is used to record the object 200. The identification device 140 is placed on the path of the first transporting mechanism 111 for transporting the object 200, and is at least in communication connection with the transporting device 110 by adopting a unified communication protocol;

in some embodiments, the transport device 110 is caused to transmit the first and second identifications of the object 200 to the radiation scanning device 120, and the radiation scanning device 120 is caused to transmit the first, second identifications and scanned images of the object 200 to the map determining device 150.

In some embodiments, the control device 130 is communicatively connected to the identification device 140 and the image determining device 150, such that the control device 130 receives status information of each of the transport device 110, the radiation scanning device 120, and the identification device 140, and sends the status information to the image determining device 150 for processing, where the status information indicates the operation of the corresponding device.

In some embodiments, the transporter 110 further includes a sorter 113 coupled to the third transporter 112, such that the transporter 110 obtains a first identification and map conclusion of the object 200, and the sorter 113 is controlled to sort the object 200 based on the first identification and map conclusion of the object 200.

In some embodiments, the transporting device 110 further includes at least one sorting branch connected to the sorting machine 113, the third transporting mechanism 112 is provided with a sixth triggering mechanism 1124, and each sorting branch is provided with a seventh triggering mechanism, so that the control device 130 checks the sorting result according to the time difference between the sixth triggering mechanism 1124 and the seventh triggering mechanism of the target sorting branch, which is determined according to the first identifier and the graph conclusion of the object 200, triggered by the object 200.

In some embodiments, control 130 is caused to control sorter 113 to cease operation when the time difference exceeds a preset threshold.

In some embodiments, having the sorting leg transport the object 200 thereon to a designated location, the control device 130 controls the non-target sorting leg to stop transporting when the object 200 triggers the seventh trigger mechanism of the non-target sorting leg.

Fig. 6 schematically illustrates a block diagram of a portion of an object inspection system 100 in accordance with further embodiments of the present disclosure. Fig. 7 schematically illustrates a block diagram of the entirety of an object inspection system 100 according to further embodiments of the present disclosure.

In some embodiments, referring to fig. 6 and 7, the object inspection system 100 includes a transportation device 110 (i.e., BHS) and a radiation scanning device 120 (i.e., XIS). The transport device 110 includes a first transport mechanism 111 (e.g., a BHS entrance conveyor) for transporting an object 200 (e.g., a baggage 201), wherein a first trigger mechanism 1111 (i.e., a BHS entrance light barrier) is provided at the first transport mechanism 111 for tracking the object 200, the radiation scanning device 120 includes a second transport mechanism configured to transport the object 200 from the first transport mechanism 111 to a radiation scanning area and to reverse-run a distance after stopping transporting the object 200, wherein the first trigger mechanism 1111 has a first distance from an entrance of the radiation scanning device 120 that is greater than a moving distance of any object 200 thereon during the reverse-run of the second transport mechanism.

When the object 200 passes the first tracking point, the BHS may generate a first identifier, which is bound to the object 200 for subsequent tracking. The first tracking point is the closest tracking point to the XIS entry. Because it is a first distance from the XIS entrance, any object 200 being transported in reverse during rewinding will not trigger the first trigger 1111 again, eliminating duplicate tracking records for that object 200 due to false triggers.

Referring to fig. 6 and 7, the first trigger mechanism 1111 is further from the XIS entrance than the prior art shown in fig. 1 and 2. For example, if the reverse run is about 10-25cm long, and the length of the largest luggage 201 is about 1 meter, for example, the first trigger mechanism 1111 is about 1 meter or more from the XIS entrance edge, where the first tracking point is located, and the XIS rewinding is not triggered by mistake.

It will be appreciated that reversing the direction of travel a distance after the second transport mechanism in this embodiment stops transporting the object 200 corresponds to a temporary stop during inspection of the object, rather than the object inspection system 100 stopping operation entirely and no longer inspecting the object 200.

According to an embodiment of the present disclosure, there is provided an object inspection system 100 including a transporting device 110 and a radiation scanning device 120, in which a first trigger mechanism 1111 of a first transporting mechanism 111 located in the transporting device 110 is disposed at a position having a first distance from an entrance of the radiation scanning device 120, and even in a reverse operation process of rewinding a jigsaw by a second transporting mechanism, since the first distance is greater than a moving distance of any object 200 on the second transporting mechanism in the reverse operation process, the first trigger mechanism 1111 is prevented from being touched by mistake, thereby realizing an effect of accurate tracking and efficient inspection.

In some embodiments, the radiation scanning apparatus 120 is configured with only the second triggering mechanism 121 (i.e., the intermediate light barrier of the XIS beam plane), the second triggering mechanism 121 being located between the first beam plane (i.e., beam plane 1) and the second beam plane (i.e., beam plane 2) of the radiation scanning apparatus 120, the second triggering mechanism 121 being used to track the object 200.

Illustratively, the XIS includes a first radiation source and a first radiation detector that together form a first radiation beam plane, and a second radiation source and a second radiation detector that together form a second radiation beam plane, with beam plane 1 and beam plane 2 being parallel. The mutual interference of ray signals is avoided, and the detection of the detected object 200 in multiple modes and multiple angles is realized.

According to the embodiment of the disclosure, the XIS beam surface tracking point is set at the position of the second trigger mechanism 121, and the XIS entrance light barrier is eliminated, so that the problem of false triggering of the XIS entrance light barrier caused by reverse operation in the prior art can be overcome. The BHS and the XIS perform transmission of the first identifier at the object 200 through the XIS beam surface tracking point, and then the first identifier and the scanned image are combined to realize tracking, that is, the light barrier information and the scanned image information are utilized, and even if the second trigger mechanism 121 is triggered again after rewinding, false trigger disturbance in the tracking process can be filtered out because the scanned image already exists.

In some embodiments, the transport apparatus 110 includes a third transport mechanism 112 that transports the object 200 from the second transport mechanism, the third transport mechanism 112 including N transport sub-mechanisms, such as N conveyor belts. Wherein each transport sub-mechanism is configured to transport the object 200 to a next transport sub-mechanism until the object 200 leaves the third transport mechanism 112, wherein a first transport sub-mechanism closest to the radiation scanning apparatus 120 is configured to operate in synchronization with a second transport mechanism.

Referring to fig. 7, the N transport sub-mechanisms may be N conveyor belts, such as a BHS exit conveyor belt and all conveyor belts between it and sorter 113. The first transport sub-mechanism is the BHS exit conveyor. The synchronous operation indicates that the XIS conveyor (i.e., the second transport mechanism) is part of the line, facilitating the tracking of the object 200 by the BHS on each conveyor section.

In some embodiments, a third trigger mechanism 1121 is provided on the first transport sub-mechanism, the third trigger mechanism 1121 being configured to issue a start-stop signal when triggered by the object 200 and a specific condition is met, the first transport sub-mechanism being configured to perform a stop or run according to the start-stop signal. The specific condition mentioned in the disclosure is that the next transport sub-mechanism operates to send out a start signal, and the stop sub-mechanism stops operating to send out a stop signal.

In some embodiments, the third trigger mechanism 1121 is located at the end of the transport path provided by the first transport sub-mechanism.

Referring to fig. 7, a start-stop determination point is provided at the end position of the third trigger mechanism 1121, and when the first transport sub-mechanism performs stop or operation according to the start-stop signal, the second transport mechanism synchronously performs stop or operation. The third trigger mechanism 1121 is the closest trigger mechanism on the BHS to the edge of the XIS exit, and is located a second distance (e.g., about 1 meter) at the end of the BHS exit conveyor where the XIS rewind does not trigger by mistake.

In some embodiments, the second transport sub-mechanism is the next transport sub-mechanism adjacent to the first transport sub-mechanism, and a fourth trigger mechanism 1122 is disposed on the second transport sub-mechanism, the fourth trigger mechanism 1122 being used to track the object 200.

In some embodiments, a fifth trigger mechanism 1123 is provided on the second transport sub-mechanism, the fifth trigger mechanism 1123 being further from the first transport sub-mechanism than the fourth trigger mechanism 1122, the fifth trigger mechanism 1123 being configured to track the object 200 and to signal a start and stop when triggered by the object 200 and a particular condition is met. Referring to fig. 7, the second tracking point is disposed at the fourth trigger mechanism 1122. The third tracking point is disposed at the fifth trigger mechanism 1123.

In some embodiments, the fourth trigger mechanism 1122 is located at the head end of the travel path provided by the second transport sub-mechanism and the fifth trigger mechanism 1123 is located at the end of the travel path provided by the second transport sub-mechanism. The transport path includes a path of transported objects for each individual conveyor, such as the rectangular area corresponding to each conveyor in fig. 7.

According to the embodiment of the disclosure, the XIS exit side tracking point and the start-stop point are reasonably selected, and the XIS exit side start-stop light barrier and the tracking light barrier are selected separately. At the BHS exit conveyor nearest the XIS, the third trigger mechanism 1121 is selected to be the conveyor start-stop determination point only, and not the tracking point. This has the following advantages:

The BHS exit conveyor (i.e., the first transport sub-mechanism) is stopped simultaneously with the XIS conveyor (i.e., the second transport mechanism), and when the baggage 201 triggers the conveyor end light barrier, the next belt stops, the belt and the XIS conveyor also stop simultaneously. If the XIS needs to rewind the puzzle, the length of the belt is rewound synchronously with the XIS conveyor, and the light barrier is not used as a tracking point, so that even if the conveyor is started after rewinding, the baggage 201 is triggered twice, and the baggage 201 is not affected by the light barrier. The exit conveyor is synchronized with the XIS to start and stop, which facilitates accurate calculation of the time window (see subsequent fig. 8 and 9), and may more accurately track the baggage 201.

Selecting the entrance light barrier of the next belt (i.e., the second transport sub-mechanism) of the BHS exit conveyor as the tracking point (see fig. 7, second tracking point) eliminates the effect of XIS rewinding. The system is designed to stop the belt step by step from the sorting gate, and through logic processing, the BHS exit conveyor continues to transfer baggage 201 to the next belt section, which continues to transfer until it enters the sorter 113. Thus, the system does not stop as the baggage 201 passes the second tracking point while traveling from the BHS exit conveyer to the next belt.

In some embodiments, at least one sixth triggering mechanism 1124 is disposed on each of the remaining transport sub-mechanisms of the N transport sub-mechanisms except the first transport sub-mechanism and the second transport sub-mechanism, the sixth triggering mechanism 1124 being configured to track the object 200 and to signal a start and stop when triggered by the object 200 and a specific condition is met.

In some embodiments, a sixth trigger mechanism 1124 is provided on each of the N transport sub-mechanisms except the first transport sub-mechanism and the second transport sub-mechanism at least at the end of the provided transport path.

According to an embodiment of the present disclosure, referring to fig. 7, four 1 meter (by way of example only) conveyors are behind the xis. Except for the BHS exit conveyor closest to the XIS, only the light barrier is selected as the conveyor start-stop determination point, and the light barrier is installed at the end of each of the remaining conveyor sections as a trigger mechanism, except for the tracking point, the light barrier is usually used as the tracking point, and is also used as the conveyor start-stop determination point (the baggage 201 triggers the light barrier to inquire the next belt state, and if the next belt stops, the conveyor belt in which the baggage 201 is located is also stopped immediately), so that the time window can be calculated accurately, and the baggage 201 can be tracked more accurately.

It should be noted that the four-section and 1 meter parameters are only for clarity of description, and the object inspection system 100 may be modularly designed, and different module configurations may be selected according to user budget and use requirements. For example, an ATR automatic code scanning system can select a high-cost three-sided code scanning camera, wherein the system automatically scans codes, the passing rate of baggage 201 is high, and BPH is about 800 pieces/hour. The system can also select a low-cost code scanning gun, the code scanning rate is low, and the BPH is about 360 pieces/hour. For example, BHS with different configurations, such as multi-section conveyor belt BHS, can be adopted, the number of conveyor belts can be freely configured according to different site conditions, the line body realizes higher passing rate of baggage 201 through intelligent queuing logic, and the remote graph judging system can adopt a pop-up graph judging mode or a remote scroll graph judging mode.

Referring to the descriptions and embodiments of fig. 1-7, a set of integrated object inspection system is designed to solve the problem of the prior art, and the problem of the success rate of tracing luggage by the system due to the XIS rewinding jigsaw is solved. The method mainly relates to the following aspects of an XIS and BHS integrated design, wherein a conveyor belt of the XIS is used as a part of the BHS, namely, the start and stop of the XIS conveyor belt are controlled by the BHS, the middle position of two beam surfaces of the XIS is selected as a tracking point to replace the position of an entrance of the XIS as a tracking point, false triggering of a light barrier by baggage 201 during the rewinding of the XIS is avoided, the tracking point light barrier and the start and stop light barrier on the exit side of the XIS are separately selected, and false triggering of the light barrier by baggage 201 during the rewinding of the XIS is avoided.

Fig. 8 schematically illustrates a flow chart of an object tracking method according to an embodiment of the present disclosure. Fig. 9 schematically illustrates a logic channel diagram implementing an object tracking method according to an embodiment of the present disclosure.

Referring to fig. 3 to 7, the transporting device 110 and the radiation scanning device 120 in the object inspection system 100 are provided with M1 trigger mechanisms in total, and the M1 trigger mechanisms are used as M1 tracking points for tracking the object 200, as shown in fig. 8, the object tracking method in the embodiment of the disclosure includes:

In operation S810, M2 tracking points during transportation are allocated to the object 200 to be inspected, wherein the transportation device 110 and the radiation scanning device 120 are configured to transport the object 200, M1 and M2 are integers greater than or equal to 1, and M2 is less than or equal to M1;

In operation S820, M2 time windows in which the object 200 reaches each tracking point are allocated to the M2 tracking points, the time windows indicating a period of time having a specific time length;

in operation S830, if the object 200 reaches the corresponding tracking point within each time window, it is determined that the object 200 is tracked.

In some embodiments, if the object 200 does not reach the corresponding tracking point within any one of the time windows, the object 200 is transported to the unpacking inspection tunnel. Thus, it is possible to quickly identify an abnormality by reaching the tracking point within the corresponding time window, and when the abnormal baggage 201 appears, dispatch it to the screening lane.

Illustratively, each tracking point corresponds to a triggering mechanism, each triggering mechanism including a photo-correlation sensor that is triggered when baggage 201 is transported to the corresponding tracking point, and the photo-correlation sensor sends a triggering signal to the control module or control device 130 of the transporter 110 after triggering. In other embodiments, an encoder-assisted timing may be used, and the control module or control 130 of the transporter 110 may send a pulse signal to the encoder that begins counting, and upon triggering the next photoelectric correlation sensor by the baggage 201, the conveyor controller controls the encoder to stop counting until the object 200 reaches the next tracking point within the time window or beyond the time window.

For example, taking the control device 130 as an example, it checks whether the baggage 201 arrives at the corresponding tracking point within each time window comprises:

step 1, the control device 130 stores the time window of each tracking point. It will be appreciated that the time windows for the individual tracking points may be the same or different, and are flexibly determined in particular in terms of distance and speed. When one tracking point is reached, the time window for its next tracking point begins to time.

And 2, storing the count value of the corresponding encoder of the time window of each tracking point.

Step 3, for each tracking point, the luggage 201 triggers the photoelectric correlation sensor to send out photoelectric signals, and the encoder starts counting.

Step 4, the control device 130 obtains the actual count value of the encoder according to the real-time count value and the start count value of the encoder, compares the actual count value with the preset count value, if the actual count value is not exceeded, the checking result is that the luggage 201 is being transported, and if the actual count value is exceeded, the luggage 201 does not accurately reach the corresponding tracking point.

Step 5, when the luggage 201 triggers the photoelectric correlation sensor of the next tracking point to send out a photoelectric signal, the encoder stops counting the time window, and the control device 130 controls the encoder to start counting the next time window. It will be appreciated that the foregoing is exemplified by one encoder, but a corresponding encoder may be provided for each tracking point, and the disclosure is not particularly limited.

In some embodiments, referring to FIG. 9, either trigger mechanism has an associated transport mechanism on either transport 110 or radiation scanning device 120, and for either time window, further comprises counting the elapsed time forward (i.e., the conveyor belt is counting up) within the time window when the transport mechanism associated with the tracking point corresponding to the time window is operating forward, counting the elapsed time backward (i.e., the conveyor belt is counting down) within the time window when the transport mechanism associated with the tracking point corresponding to the time window is operating backward, and counting the elapsed time down (i.e., the conveyor belt is not counting down) within the time window when the transport mechanism associated with the tracking point corresponding to the time window is not operating.

With continued reference to fig. 9, each piece of luggage 201 is assigned a logic channel, and the number of logic channels is greater than the maximum number of luggage 201 that the wire can accommodate, and the logic channels can be recycled. Each logical channel is assigned a number of tracking points, for example 6 tracking points. Once the baggage 201 enters the logical channel, it is marked with a tracking ID (i.e., a first identification) and a time window for each subsequent tracking point is preconfigured. If the tracking point is reached within the time window, the tracking error of the segment is corrected and eliminated, and then the next segment is entered for tracking. Before the baggage 201 reaches the sorting port, the corresponding judgment chart conclusion information is queried in the conclusion data queue, and the baggage is subjected to corresponding open inspection or release processing.

For example, when the object 200 reaches the first tracking point, the tracking ID of the object 200 is generated as the tracking start point. And starting timing, wherein the time window for reaching the beam surface tracking point is 5 minutes, the consumed time is forward timing time, and if the beam surface tracking point is reached within a specified range, transmitting the tracking ID to the XIS, and binding the image and the ID. For any tracking point after the tracking start point, if the tracking point arrives in the corresponding time window (the specified time range), the tracking ID is transferred to the next conveyor belt, otherwise, the logic channel is closed, the tracking is stopped, and the next conveyor belt is transported to the unpacking inspection channel.

According to an embodiment of the present disclosure, an object tracking method for an object inspection system 100 is provided, by allocating a plurality of tracking points to an object 200 to be inspected and pre-allocating time windows reaching each tracking point, a pre-judging effect on object tracking is achieved, and real-time tracking is performed based on triggering conditions of the tracking points during actual transportation of the object 200, so that tracking accuracy of the object 200 is improved.

Referring to the description of fig. 1 to 9 and the embodiments, the integrated object inspection system 100 is suitable for the system integration solutions of CX100100DB-A type X-ray inspection system, ATR automatic code scanning system, BHS and remote image judging system in airport cargo station security inspection application scenarios. The front section of the security inspection machine is additionally provided with a conveyor belt for automatically pulling bags and an information acquisition system for the baggage 201, and the security inspection machine is modified by modifying a light lead door curtain to improve the passing capability of the baggage 201. The interconnection software is developed to complete the tracking of the baggage 201 by matching with the line body, and the rear section of the security inspection machine is provided with a conveying belt, an automatic sorting machine 113, a returning mechanism and a releasing mechanism. The PLC program is developed to finish the tracking and sorting of the baggage 201, and the influence of the rewinding jigsaw of the security check machine on the baggage 201 tracking is mainly solved. The sorter 113 was developed, focusing on solving the problem of insufficient sorting capability of the ordinary balance sorter 113 for the irregular baggage 201. The remote image judging system can meet the functions of image dispatch and remote image judging, integrate line body and security check machine information in the system, and facilitate security check personnel to monitor the whole airport goods station integrated object checking system 100;

in some embodiments, the object inspection system 100 operates as follows in airport terminal security checks:

Before checking the security of the single ticket baggage 201, the freight agent must check the security before starting the shipment, after the check is successful, the belt of the security check machine starts to rotate forward, the belt of the automatic code scanning machine at the entrance of the security check machine and the belt at the exit of the security check machine are linked to rotate forward, and the freight agent prepares to start loading the baggage 201 with labels attached to each piece.

Ingress BHS bag pulling process-ingress BHS receives baggage 201, and bag pulling process is performed on baggage 201, ensuring that the bag pitch is not less than 500mm (for example only).

Automatic code scanning, namely after the luggage 201 enters an ATR code scanning area, the ATR scans the code, and after the code scanning is successful, the ATR sends the luggage 201 bar code to an entrance BHS at a fixed point position (at an XIS entrance).

Baggage screening-entry BHS begins tracking baggage 201 at a fixed point location and transmits baggage 201 barcode + tracking BID code (BHS self-generation) to the XIS at a location intermediate the beam plane of the XIS. The XIS packages and transmits the luggage 201 image, the corresponding bar code and the BID code to a remote picture judging system.

Security decision, export BHS continues to transfer and track the baggage 201 during which the remote decision station decides on the received image information. After the diagramming staff makes the diagramming conclusion on the baggage 201, the remote diagramming system sends the diagramming conclusion + tracking BID code to the XIS, and after the XIS receives, it sends it to the output port BHS.

Baggage 201 is sorted, when baggage 201 is transferred to the front end location of sorter 113, the export BHS draws conclusions from the data queue based on the received conclusions + tracking BID codes, and sorts or releases the corresponding baggage 201 based on the conclusion of the map.

Unpacking and checking, namely, unpacking and checking the returned suspicious baggage 201 and re-declaring the name of the baggage by the unpacker and the freight agent in turn, and further, the suspicious baggage 201 can be continuously checked by a security check machine during the transportation and unpacking of the suspicious baggage 201.

Baggage review-baggage 201 without contraband requires review after unpacking is completed. The re-checking flow is consistent with the initial checking, if the re-checking meets the suspicious baggage 201, the suspicious baggage 201 needs to be returned again for unpacking checking until the security checking flow of the whole baggage 201 is finished after each piece of baggage 201 is processed.

The interference factor is processed during the baggage inspection process as shown in table 1 below.

TABLE 1 anti-tamper indicator conditions

Sequence number	Interference factor	Handling interference
			1	When a package passes through the binding surface, two ID numbers are generated	Opening inspection, and does not influence subsequent package
2	When scanning codes, the trailing packages are sent into the security inspection machine carelessly	Opening inspection, and does not influence subsequent package
			3	When the package passes through the binding surface, the missing package does not generate ID number	Opening inspection, and does not influence subsequent package
4	Optionally adding a package to the package team	Opening inspection, and does not influence subsequent package
			5	No collision sorting light barrier after package sorting	Alarm and display the package ID number
6	No touching releasing light barrier when parcel is released	Alarm and display the package ID number

The object inspection system 100 and the object tracking method provided by the embodiment of the disclosure enable the BHS and the XIS to be integrally designed, reasonably select information interaction points of the BHS and the XIS, reasonably design system tracking points and package start and stop points, optimize a tracking algorithm, and further improve the system tracking and sorting success rate.

Those skilled in the art will appreciate that the features recited in the various embodiments of the disclosure and/or in the claims may be provided in a variety of combinations and/or combinations, even if such combinations or combinations are not explicitly recited in the disclosure. In particular, the features recited in the various embodiments of the present disclosure and/or the claims may be variously combined and/or combined without departing from the spirit and teachings of the present disclosure. All such combinations and/or combinations fall within the scope of the present disclosure.

The embodiments of the present disclosure are described above. These examples are for illustrative purposes only and are not intended to limit the scope of the present disclosure. Although the embodiments are described above separately, this does not mean that the measures in the embodiments cannot be used advantageously in combination. The scope of the disclosure is defined by the appended claims and equivalents thereof. Various alternatives and modifications can be made by those skilled in the art without departing from the scope of the disclosure, and such alternatives and modifications are intended to fall within the scope of the disclosure.

Claims

1. An object inspection system comprising:

A transport device comprising a first transport mechanism for transporting an object, wherein a first trigger mechanism is arranged on the first transport mechanism and is used for tracking the object;

a radiation scanning device comprising a second transport mechanism configured to transport the object from the first transport mechanism to a radiation scanning area and to reverse run a distance after stopping transporting the object;

Wherein the first trigger mechanism has a first distance from the entrance of the ray scanning device, and the first distance is greater than the moving distance of any object on the second transport mechanism in the reverse operation process;

The radiation scanning device is configured to be provided with only a second triggering mechanism, which is located between the first radiation beam surface and the second radiation beam surface of the radiation scanning device, the second triggering mechanism being used for tracking the object.

2. The object inspection system of claim 1, wherein the transport device is configured to control operation of the second transport mechanism.

3. The object inspection system of claim 2, wherein the transport device includes a third transport mechanism that transports the object from the second transport mechanism, the third transport mechanism including:

N transport sub-mechanisms, wherein each of the transport sub-mechanisms is configured to transport the object to a next transport sub-mechanism until the object leaves the third transport mechanism, N being an integer greater than or equal to 1;

Wherein a first transport sub-mechanism closest to the radiation scanning apparatus is configured to operate in synchronization with the second transport mechanism.

4. The object inspection system of claim 3, wherein,

The first transportation sub-mechanism is provided with a third triggering mechanism, the third triggering mechanism is used for sending out a start-stop signal when the third triggering mechanism is triggered by the object and meets a specific condition, the first transportation sub-mechanism is configured to execute stop or operation according to the start-stop signal, the specific condition comprises that the next transportation sub-mechanism is operated to send out a start signal, and the stop operation is stopped to send out a stop signal.

5. The object inspection system of claim 4 wherein a third trigger mechanism is located at an end of a transport path provided by the first transport sub-mechanism.

6. The object inspection system of claim 4, wherein a second transport sub-mechanism is a next transport sub-mechanism adjacent to the first transport sub-mechanism,

And a fourth trigger mechanism is arranged on the second transportation sub-mechanism and is used for tracking the object.

7. The object inspection system of claim 6, wherein,

The second transportation sub-mechanism is provided with a fifth trigger mechanism, the fifth trigger mechanism is far away from the first transportation sub-mechanism compared with the fourth trigger mechanism, and the fifth trigger mechanism is used for tracking the object and sending a start-stop signal when the fifth trigger mechanism is triggered by the object and meets the specific condition.

8. The object inspection system of claim 7 wherein the fourth trigger mechanism is located at a head end of a transport path provided by the second transport sub-mechanism and the fifth trigger mechanism is located at a tail end of the transport path provided by the second transport sub-mechanism.

9. The object inspection system of claim 7, wherein,

At least one sixth triggering mechanism is arranged on each of the N transporting sub-mechanisms except the first transporting sub-mechanism and the second transporting sub-mechanism, and the sixth triggering mechanism is used for tracking the object and sending a start-stop signal when the object is triggered and the specific condition is met.

10. The object inspection system of claim 9, wherein,

The sixth triggering mechanism is arranged on each of the N transport sub-mechanisms except the first transport sub-mechanism and the second transport sub-mechanism at least at the tail end of the provided transport path.

11. An object tracking method for the object inspection system according to any one of claims 1 to 10, wherein the transport device and the radiation scanning device in the object inspection system are provided with M1 trigger mechanisms in total, and the M1 trigger mechanisms are used as M1 tracking points for tracking the object, the method comprising:

M2 tracking points in the process of transporting the object to be inspected are distributed, wherein the transporting device and the ray scanning device are configured to transport the object, M1 and M2 are integers which are larger than or equal to 1, and M2 is smaller than or equal to M1;

Assigning M2 time windows for the object to reach each tracking point to M2 of the tracking points, the time windows indicating time periods having a particular time length;

And if the object reaches the corresponding tracking point in each time window, determining that the object is tracked.

12. The method of claim 11, wherein,

Either of the triggering mechanisms has an associated transport mechanism on the transport device or the radiation scanning device, the method further comprising, for either of the time windows:

when the transport mechanism associated with the tracking point corresponding to the time window operates forward, timing the consumed time forward within the range of the time window;

when the transport mechanism associated with the tracking point corresponding to the time window runs reversely, reversely counting the consumed time within the range of the time window;

and stopping counting the consumed time within the range of the time window when the transportation mechanism associated with the tracking point corresponding to the time window stops running.

13. The method of claim 11, wherein the method further comprises:

and if the object does not reach the corresponding tracking point in any time window, transporting the object to an unpacking inspection channel.