Invasive species control systems and methods for controlling them in port facilities, and cargo handling equipment for port facilities.

Abstract

This invention provides a system and method for controlling invasive species in port facilities, as well as cargo handling equipment for port facilities, that more easily prevents the establishment and spread of invasive species attached to cargo in port facilities. [Solution] The pest control system 1 for controlling invasive species A attached to cargo C handled by cargo handling equipment 10 at port facilities P comprises camera devices 2a to 2c that acquire image data D1 to D3 of cargo C during cargo handling by cargo handling equipment 10, and a computing device 3. A section capable of storing cargo C is designated as a pest control section 6. The computing device 3 performs data processing to identify invasive species A in the image data D1 to D3 based on the image data D1 to D3 acquired by the camera devices 2a to 2c, and data processing to interrupt the handling of the target cargo CA and have the cargo handling equipment 10 store the target cargo CA in the pest control section 6. In the pest control section 6, invasive species A attached to the stored target cargo CA is controlled.

Description

Technical Field

[0001] The present invention relates to a control system and method for alien species in port facilities, as well as the cargo handling equipment of port facilities. More specifically, it relates to a control system and method for alien species in port facilities that more easily prevent the establishment and external propagation of alien species attached to cargo in port facilities, as well as the cargo handling equipment of port facilities.

Background Art

[0002] Incidents have occurred one after another where alien species such as sea squirts are mixed into cargo such as containers and steel plates, invade port facilities such as container terminals, and become established and propagate. The work of checking for alien species at container terminals is carried out on containers stored in the container yard. In this checking work, for example, the doors, interiors, ventilation openings, peripheries of corner castings, outer walls, forklift pockets, etc. of the containers are mainly checked. However, it takes a great deal of effort to conduct individual checking work on a large number of containers stored in the container yard. Therefore, measures to more easily control alien species attached to cargo such as containers are desired.

[0003] As a countermeasure against insects and pests parasitizing on cargo, a system for fumigating ships (see Patent Document 1) has been proposed. The system described in this Patent Document 1 is a countermeasure for the closed cargo areas inside ships and is difficult to apply to open large-scale facilities such as port facilities. Therefore, further development is necessary to more easily prevent the establishment and external propagation of alien species attached to cargo in port facilities.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] The object of the present invention is to provide a system and method for controlling invasive species in port facilities, as well as cargo handling equipment for port facilities, that can more easily prevent the establishment of invasive species attached to cargo in port facilities and their spread to the outside. [Means for solving the problem]

[0006] The present invention provides an alien species control system for port facilities that achieves the above objectives, and is a system for controlling alien species attached to cargo handled by cargo handling equipment, comprising: a camera device that acquires image data of the cargo being handled at a predetermined location in the port facility; and a computing device, wherein a control area is designated as a section where the cargo can be stored and where the alien species attached to the cargo is controlled, and the computing device performs data processing to identify the alien species based on the image data of the cargo, and data processing to interrupt the handling of the cargo in which the alien species has been identified at the predetermined location, and to cause the cargo handling equipment to store the cargo in the control area.

[0007] The present invention relates to a method for controlling invasive species in port facilities, which controls invasive species attached to cargo handled by cargo handling equipment, comprising: a preparation step performed during cargo handling at a predetermined location in the port facility; and a control step performed in a control area located at a location different from the predetermined location, wherein in the preparation step, image data of the cargo being handled at the predetermined location by the cargo handling equipment is acquired by a camera device, the image data is processed by a computing device to identify the invasive species in the image data, the cargo handling of the cargo in which the invasive species has been identified is interrupted and the cargo is stored in the control area by the cargo handling equipment, and in the control step, the invasive species attached to the cargo is controlled.

[0008] The cargo handling equipment for port facilities of the present invention is characterized by comprising an invasive species control system for port facilities as described above. [Effects of the Invention]

[0009] According to the present invention, the presence or absence of invasive species attached to cargo can be confirmed by data processing using a computing device that utilizes image data of cargo during handling. This significantly reduces the manual work required for checking for invasive species at port facilities. Cargo that has been infected with invasive species is then stored in a designated control area, where the invasive species attached to the cargo are controlled. As a result, it is possible to effectively prevent invasive species attached to cargo from becoming established in port facilities or spreading to the outside. [Brief explanation of the drawing]

[0010] [Figure 1] This is an explanatory diagram illustrating an example of an invasive species control system and cargo handling equipment at port facilities. [Figure 2] Figure 1 is an explanatory diagram illustrating a longitudinal section of a part of the leg structure of the cargo handling equipment. [Figure 3] Figure 1 is an explanatory diagram illustrating a plan view of the pest control area. [Figure 4] This is an explanatory diagram illustrating image data of cargo. [Figure 5] This flowchart illustrates the procedure for controlling invasive species in port facilities. [Figure 6] This is an explanatory diagram illustrating a classification model. [Figure 7] This is an explanatory diagram illustrating port facilities. [Figure 8] This is an explanatory diagram illustrating the vicinity of a gate in a port facility. [Figure 9] This is an explanatory diagram illustrating another port facility. [Figure 10] Figure 9 is an explanatory diagram illustrating cargo handling equipment. [Figure 11] This is an explanatory diagram illustrating a plan view of another pest control area. [Figure 12] This is an explanatory diagram illustrating another classification model. [Modes for carrying out the invention]

[0011] Hereinafter, the foreign species control system and its control method in the port facility of the present invention, as well as the cargo handling equipment of the port facility, will be described based on the embodiments shown in the figures.

[0012] The embodiment of the control system 1 illustrated in FIG. 1 includes a plurality of camera devices 2a to 2c and an arithmetic unit 3. This control system 1 further includes a spraying device 4 and a lighting device 5. The spraying device 4 and the lighting device 5 can be optionally provided.

[0013] The embodiment of the cargo handling equipment 10 equipped with the control system 1 is handling the cargo C for the ship S docked at the port facility P illustrated in FIG. 7 described later. A plurality of camera devices 2a to 2c and a lighting device 5 are installed on the cargo handling equipment 10. Further, a control section 6 is installed on this cargo handling equipment 10, and the spraying device 4 is provided in the control section 6. The directions indicated by the X, Y, and Z arrows in FIG. 1 respectively indicate the traveling direction, the lateral direction, and the vertical direction of the cargo handling equipment 10, which are directions perpendicular to each other.

[0014] Using this control system 1, an embodiment of the foreign species control method in the port facility illustrated in FIG. 5 described later is implemented. This control method is used to control the foreign species A attached to the cargo C being handled by the cargo handling equipment 10. The foreign species A are insects, spiders, scorpions, plants, etc. that are likely to attach to the cargo C. For example, they are termites, Argentine ants, red imported fire ants, Formosan subterranean termites, black widow spiders, funnel-web spiders, emperor scorpions, yellowjackets, moss, and giant centipedes, etc.

[0015] The outline of this control method will be described. While the cargo C loaded on the ship S is being handled by the cargo handling equipment 10, image data D1 to D3 of the cargo C are acquired by the plurality of camera devices 2. Then, the foreign species A are identified by data processing of the image data D1 to D3 by the arithmetic unit 3, and the cargo C with the foreign species A attached (hereinafter referred to as the target cargo CA) is stored in the control section 6 by the cargo handling equipment 10. Finally, in the control section 6, the foreign species A attached to the target cargo CA are exterminated by the spraying device 4.

[0016] First, the cargo handling equipment 10 and the control system 1 will be described in detail.

[0017] In FIG. 7, the cargo handling equipment 10 performs cargo handling of the cargo C with respect to the ship S. The cargo C is, for example, a marine container (hereinafter referred to as a container) such as a 20-foot container, a 40-foot container, a reef container, a tank container, or a sheet-like or coil-like steel plate. The cargo C is not particularly limited and is applicable as long as it is a cargo transported by sea by the ship S. The cargo C in this embodiment is a container and has an upper surface C1, a lower surface C2, and four side surfaces C3 as illustrated in FIG. 4. This cargo C is connected to a spreader 16 described later and is cargo-handled.

[0018] In FIG. 1, the cargo handling equipment 10 can use, for example, a known gantry crane. This cargo handling equipment 10 has a girder part (boom, girders) 11, a leg structure 12, a traveling device 13, a trolley 14, a wire rope 15, a spreader 16, and a machine room 17.

[0019] The girder part 11 extends in the Y direction and is supported on the upper part of the leg structure 12, and protrudes from both sides in the Y direction of the leg structure 12. A traveling device 13 is installed at the lower end of the leg structure 12. This leg structure 12 has four legs 12a, two sill beams 12b, tie beams 12c, portal tie beams 12d, and diagonal members 12e that connect the legs. The sill beams 12b and the tie beams 12c connect the legs 12a adjacent in the X direction. The portal tie beams 12d and the diagonal members 12e connect the legs 12a adjacent in the Y direction. The trolley 14 travels along the girder part 11. The spreader 16 is lifted by a wire rope 15.

[0020] The configuration of the cargo handling equipment 10 is not particularly limited and can be appropriately changed according to the type of the cargo C to be handled and the like. For example, when the cargo C is a steel plate, a magnet lifter can be used for the spreader 16, and when the cargo C is a container, a spreader can be used.

[0021] Multiple camera devices 2a to 2c acquire image data D1 to D3 of cargo C being handled by the cargo handling equipment 10. This image data D1 to D3 will be described later. Various known camera devices can be used for the multiple camera devices 2a to 2c, and in addition to camera devices with optical lenses, infrared cameras, thermographic cameras, thermal cameras, etc., can also be used. Multiple camera devices 2a to 2c may be a combination of multiple types of camera devices, for example, multiple sets of a combination of a camera device with an optical lens and an infrared camera may be used. The image data D1 to D3 acquired by camera devices 2a to 2c may be still images or videos.

[0022] Multiple camera devices 2a to 2c are configured so that their orientation (e.g., the orientation of the optical lens) and image magnification can be adjusted by the processing unit 3. If the movement trajectory of cargo C during handling by the cargo handling equipment 10 differs for each piece of cargo C, the multiple camera devices 2a to 2c are adjusted by the processing unit 3 to have an appropriate orientation and image magnification for the cargo C being handled.

[0023] Cargo C is particularly susceptible to the attachment of invasive species A to its underside C2. Therefore, the number and locations of the multiple camera devices 2a to 2c installed on the cargo handling equipment 10 can be arbitrarily selected, within the range where image data D2 of the underside C2 can be acquired. The details of an example of each camera device 2a to 2c in this embodiment will be described below.

[0024] The camera device 2a is installed on the trolley 14 and / or the lifting device 16, and for example, its optical lens is pointed downwards. This camera device 2a acquires image data D1 including the top surface C1 of the cargo C before or after handling. There may be multiple camera devices 2a, and they may be installed on both the trolley 14 and the lifting device 16, or multiple cameras may be installed on the lifting device 16. This camera device 2a is also used when handling cargo C with the cargo handling equipment 10, such as when the lifting device 16 is lowered.

[0025] The camera device 2b is installed at the lower end of the leg structure 12, and for example, its optical lens is pointed upward. The camera device 2b acquires image data D2 including the underside C2 of the cargo C during handling. Since the underside C2 of cargo C is exposed only while cargo C is being handled by the cargo handling equipment 10, the timing at which the camera device 2b acquires image data D2 is limited to the time when cargo C is being handled.

[0026] Figure 2 shows a longitudinal section of a portion of the leg structure 12 in the YZ plane. In Figure 2, the white arrows indicate the direction in which the cargo C moves while the trolley 14 is moving horizontally, with the cargo C moving approximately horizontally from the sea side to the land side. While the trolley 14 is moving horizontally, the height of the cargo C's underside C2 from the ground is maintained at a minimum height H, and when handling a large number of cargo C loaded onto a single vessel S, this minimum height H is approximately constant. This minimum height H is greater than the height of the upper surface of the sill beam 12b from the ground and can be appropriately selected depending on the cargo handling conditions (e.g., the height of the upper deck of the vessel S). Therefore, it is preferable that the camera device 2b acquires image data D2 including the underside C2 of the cargo C at the timing when the height of the underside C2 from the ground reaches the minimum height H before and after the trolley 14 is moving horizontally, or while the height of the underside C2 from the ground is maintained at the minimum height H during the trolley 14's movement horizontally.

[0027] The camera device 2b is installed in a part lower than the minimum height H. In this embodiment, the minimum height H is brought close to the height from the ground at the upper end of the pest control section 6 so as to minimize the raising and lowering of the target cargo CA in the Z direction when the target cargo CA is stored in the pest control section 6, which will be described later. Therefore, the lower end of the leg structure 12 refers to the part lower than the upper end of the pest control section 6. Specifically, the sill beam 12b and the running device 13 correspond to the lower end, as does the part of the leg portion 12a that is lower than the minimum height H. Since the pest control section 6 is also a part lower than the minimum height H, the camera device 2b may also be installed in the pest control section 6.

[0028] Camera devices 2b can be installed one or more times at any location on the lower end of the leg structure 12. In this embodiment, camera devices 2b are positioned on the seaward side and are installed on the upper surface of the sill beam 12b that connects adjacent leg portions 12a in the X direction.

[0029] The camera device 2b is preferably installed in the center of the upper surface of the sill beam 12b in the X direction. The center indicates the part that, in a plan view, coincides with the cargo C as the trolley 14 moves horizontally. In other words, the cargo C as the trolley 14 moves horizontally passes directly over this center. Therefore, by installing the camera device 2b in the center of the upper surface of the sill beam 12b in the X direction, it becomes possible to photograph the lower surface C2 of the cargo C at a position closer to the center of the cargo C during loading and unloading. This suppresses distortion of the lower surface C2 in the image data D2 acquired by the camera device 2b.

[0030] The silbeam 12b is less likely to interfere with cargo C during loading and unloading, and provides ample space for installing the camera device 2b. In addition, the silbeam 12b is easily accessible to workers. Therefore, installing the camera device 2b on the silbeam 12b increases the flexibility of its installation location, simplifies the routing of wiring and piping, and makes maintenance of the camera device 2b easier.

[0031] Furthermore, the silbeam 12b exhibits less shaking during travel and cargo handling compared to the legs 12a of the leg structure 12 and the traveling device 13, and also has a smaller amount of structural deformation. Therefore, it is advantageous for suppressing blur in image data D2 caused by shaking and structural deformation, making the silbeam 12b suitable as the installation location for the camera device 2b. Similarly, the pest control area 6, which will be described later, is also suitable as the installation location for the camera device 2b.

[0032] The orientation of the camera device 2b can be adjusted so that the entire underside C2 of the cargo C is captured in the acquired image data D2. The orientation of the camera device 2b is not limited to the Z direction, but may be in a direction tilted from the Z direction. In this embodiment, the camera device 2b is installed so that its optical lens faces upward and outside the leg structure 12, and acquires image data D2 of the underside C2 of the cargo C before the cargo C enters the inside of the leg structure 12 while the trolley 14 is moving.

[0033] The underside C2 of cargo C during loading and unloading is in shadow even in relatively bright daylight conditions. Therefore, it is preferable to provide a lighting device 5 that illuminates the underside C2 of cargo C during loading and unloading in order to make the image data D2 acquired by the camera device 2b clearer. The lighting device 5 only needs to be able to illuminate the entire underside C2 of cargo C at the time the camera device 2b acquires the image data D2, and its installation position is not particularly limited. This lighting device 5 can also be used as lighting at night.

[0034] Camera device 2c is installed at a higher elevation than camera device 2b from the ground, for example, with its optical lens facing the center of the leg structure 12 in a plan view. This camera device 2c acquires image data D3 including the side C3 of cargo C during handling. The parts where this camera device 2c is installed include the legs 12a, portal tie beams 12d, and diagonal members 12e. Multiple camera devices 2c are installed on the leg structure 12, and it is desirable that the entire side C3 of cargo C is present in the image data D3 acquired by each of the multiple camera devices 2c.

[0035] Camera device 2c can also be substituted for camera device 2a. The image data D1 acquired by camera device 2a may contain the side C3 of cargo C. Therefore, if the entire area of ​​side C3 is present in the image data D1 acquired by multiple camera devices 2a, camera device 2c can be omitted.

[0036] The pest control area 6 is the area where the target cargo CA is stored, and it does not need to be a separate area from the loading and unloading destination of cargo C by the cargo handling equipment 10. In Figure 2, the dashed line shows the target cargo CA stored in the pest control area 6. The target cargo CA stored in the pest control area 6 may be lifted by the cargo handling equipment 10, or it may be released from the lifting device 16 and stored in the pest control area 6. By installing the pest control area 6 on the cargo handling equipment 10 that handles cargo on the ship S, for example, when unloading cargo C from the ship S to the port facility P, it becomes possible to store the target cargo CA in the pest control area 6 without ever unloading it at the port facility P.

[0037] The pest control area 6 can be installed at any point on the cargo handling equipment 10 or at any point on the port facility P, as long as it is within the cargo handling range of the cargo handling equipment 10. However, it is preferable that it be installed at an intermediate position in the cargo handling path of the cargo C being handled by the cargo handling equipment 10. In this embodiment, since the cargo C is handled between the ship S and a yard chassis (cargo handling equipment 30, described later) parked below the portion of the girder 11 that extends outwards on the land side (left side in Figure 2) (for example, the back reach), the pest control area 6 is installed above the sill beam 12b on the land side. If the cargo C is handled between the ship S and the cargo handling equipment 30 parked in the center of the leg structure 12 in a plan view, the pest control area 6 is installed above the sill beam 12b on the sea side (right side in Figure 2). In this case, the camera device 2b is preferably installed on the sea side of the pest control area 6.

[0038] Figure 3 shows an example of a control compartment 6 in plan view. This control compartment 6 is, for example, cylindrical with an open top and a closed bottom, and has a floor wall 6a and side walls 6b. The floor wall 6a and side walls 6b are made of a single plate of metal or the like, and are joined together so that there are no gaps between the walls. The area of ​​the floor wall 6a in plan view is larger than the area of ​​the bottom surface C2 of the target cargo CA. The side wall 6b surrounds the entire side surface C3 of the target cargo CA. In other words, the control compartment 6 covers the entire bottom surface C2 and side surface C3 of the target cargo CA stored inside. Covering the entire bottom surface C2 and side surface C3 of the target cargo CA in this way is advantageous in suppressing the spread of invasive species A attached to the target cargo CA. The control compartment 6 only needs to accommodate one target cargo CA, but it may also accommodate multiple target cargo CAs stacked in the Z direction or lined up horizontally (for example, in the Y direction).

[0039] The spraying device 4 is installed in the control area 6 and is controlled by the computing device 3. This spraying device 4 sprays an insecticide to eradicate invasive species A towards the target cargo CA stored inside the control area 6. The insecticide sprayed by the spraying device 4 can be arbitrarily selected depending on the invasive species A. For example, if fire ants are to be controlled as invasive species A, a known pyrethrin-based insecticide can be used. The spraying device 4 can also spray water towards the target cargo CA instead of insecticide.

[0040] The spraying device 4 includes a tank 4a, a pump 4b, piping 4c, and nozzles 4d. In the spraying device 4, the chemical stored in the tank 4a is pumped into the piping 4c by the pump 4b and sprayed from each nozzle 4d. The spraying device 4 only needs to be able to spray the chemical over the entire surface of the target cargo CA stored in the pest control area 6. In this way, by providing the spraying device 4 in the pest control area 6, the invasive species A on the target cargo CA can be effectively eradicated by the sprayed chemical. When the spraying device 4 is installed in the pest control area 6, it is desirable that the target cargo CA stored in the pest control area 6 is lifted by the cargo handling equipment 10, that is, that the lower surface C2 of the target cargo CA is separated from the floor wall 6a of the pest control area 6. This makes it possible to spread the chemical over the entire lower surface C2 where the invasive species A is likely to attach, and to eradicate the invasive species A more effectively.

[0041] Furthermore, since the spraying device 4 is installed inside the pest control area 6, the chemical sprayed from the spraying device 4 is less likely to spread to the outside. This minimizes the amount of chemical that spreads to the port facilities P and the sea. Alternatively, for example, a retractable roof could be installed over the pest control area 6, and the roof could be closed when spraying chemicals from the spraying device 4 to further suppress the spread of chemicals.

[0042] As illustrated in Figure 1, the arithmetic unit 3 is composed of a computer, and various data are input and stored, and data processing is performed using this data. Various known computers can be used for the arithmetic unit 3. The arithmetic unit 3 has an arithmetic processing unit (CPU) 7, a main memory unit (memory) 8, and an auxiliary storage unit (e.g., HDD) 9. The arithmetic unit 3 may be connected to an input unit such as a keyboard and an output unit such as a monitor that displays the results of data processing.

[0043] This computing device 3 may be installed on the cargo handling equipment 10, or it may be installed in a remote location away from the cargo handling equipment 10 (for example, the administration building T as illustrated in Figure 7, which will be described later). In this embodiment, the computing device 3 is installed in the machine room 17 of the cargo handling equipment 10 or in the operator's cabin (not shown) of the trolley 14. The computing device 3 can be used by multiple cargo handling equipment 10, and one computing device 3 can perform data processing for multiple cargo handling equipment 10 of the port facility P.

[0044] The auxiliary storage unit 9 corresponds to the storage unit of the present invention. The classification model 20, which will be described later, is pre-stored in this auxiliary storage unit 9. The auxiliary storage unit 9 also stores image data D1 to D3 acquired by the camera devices 2a to 2c.

[0045] The image data D1 to D3 illustrated in Figure 4 are acquired by camera devices 2a to 2c and stored in the auxiliary storage unit 9 of the computing unit 3. The image data D1 to D3 are linked to the identification number of cargo C during handling. The identification number of cargo C can be obtained from the control device that controls the handling operations of the handling equipment 10 or from a higher-level system that issues handling commands to the handling equipment 10. In this embodiment, image data D1 of the top surface C1 of cargo C with identification number XXXU XXXXXX X, image data D2 of the bottom surface C2, and four image data D3 of each side C3 are acquired. That is, the entire cargo C can be confirmed by the image data D1 to D3.

[0046] Next, the procedure of an embodiment of the method for controlling invasive species in port facilities illustrated in Figure 5 will be described in detail. In this procedure, the preparation step S100 and the control step S200 are carried out in order. In the preparation step S100, which is carried out before the control step S200, when cargo C is loaded and unloaded by cargo handling equipment 10 to a designated location in port facility P, image data D1 to D3 of the cargo C are acquired by camera devices 2a to 2c (S110). Then, based on the image data D1 to D3, the processing unit 3 identifies the invasive species A in the image data D1 to D3 (S120: YES). Then, the loading and unloading of the target cargo CA is interrupted, and the target cargo CA is stored in the control area 6 (S130). Then, the control step S200 is carried out. The preparation step S100 (each step S110 to S130) and the control step S200 will be described in detail below.

[0047] In step S110, camera devices 2a to 2c acquire image data D1 to D3 of the cargo C being handled by the cargo handling equipment 10. The acquired image data D1 to D3 is stored in the auxiliary storage unit 9 of the arithmetic unit 3. If the cargo handling equipment 10 is equipped with a pest control area 6, it is preferable that step S110 and step S120 (described later) be performed before the cargo C being handled reaches directly above the pest control area 6.

[0048] In step S120, the processing unit 3 performs data processing to identify invasive species A in the image data D1 to D3 based on the image data D1 to D3. Specifically, in step S120, a classification model 20 constructed by machine learning is used to classify the objects present in the image data D1 to D3 and determine whether or not they are invasive species A. If the object present in the image data D1 to D3 is identified as invasive species A, the process proceeds to step S130. If the object is identified as not being invasive species A, the subsequent steps S130 and the control process S200 are omitted. In this case, the loading and unloading of cargo C by the cargo handling equipment 10 is not interrupted, and cargo C is loaded and unloaded at the designated location in the port facility P.

[0049] The classification model 20 illustrated in Figure 6 is pre-constructed by performing machine learning using training data 21 on the computing device 3. The classification model 20 is constructed before performing the preparation step S100 and is stored in the auxiliary storage unit 9 of the computing device 3. The classification model 20 is constructed using supervised machine learning with training image data D4 of the training data 21 as explanatory variables and labels as the target variable. The classification model 20 is a type of computer program that identifies invasive species A by classifying objects present in the image data D1 to D3 based on the input image data D1 to D3. Various known classification models such as logistic regression, k-nearest neighbors, decision trees, support vector machines, and neural networks can be used in the classification model 20.

[0050] The training data 21 is stored in the auxiliary storage unit 9 of the arithmetic unit 3. The training data 21 is a collection of training image data D4 and labels for each sample (1, 2, ..., n). This training data 21 is often different for each type of invasive species A. For example, if three types of invasive species A are identified, three separate training data sets 21 suitable for each invasive species are prepared. The training image data D4 can be various image data in which invasive species A exists as an object, or various image data in which native species similar to that invasive species exist as objects. The label indicates, for example, "attached" if the object in the training image data D4 is invasive species A, and "not attached" if it is not invasive species A.

[0051] The training data 21 is not particularly limited, but it is preferable that it contains samples in the training image data D4 that include cargo C and the invasive species A attached to cargo C. A person skilled in the art who operates and manages port facilities P, or who manufactures and develops cargo handling equipment 10, will have accumulated a large amount of image data from the verification work of invasive species A carried out at port facilities P. Since this image data includes data in which cargo C and invasive species A exist as objects, this image data can be used as training data 21. In addition, image data D1 to D3 obtained in the process of implementing the control method of this embodiment and identification results using the classification model 20 as labels may be added to the training data 21. That is, each time this control method is repeated, the number of samples in the training data 21 increases, and the training data 21 is expanded.

[0052] In the constructed classification model 20, training image data D4 and labels are associated for each sample (1, 2, ..., n) in the training data 21. In other words, the features that indicate the characteristics of an object in the training image data D4 and the presence or absence of attachment based on the label are analyzed and linked. Therefore, this classification model 20 can classify the objects in the input image data D1 to D3 and identify the invasive species A attached to cargo C from among the classified objects. For example, if the invasive species A to be controlled is the reddish-brown and glossy object, the two segments at the tip of the antennae are swollen, there are no spines on the propreturbatory muscles, and there are two nodules between the thorax and abdomen. Also, since red fire ants lay more eggs and have a higher reproductive capacity than native species such as the black carpenter ant, their features include the large number of identical objects attached to cargo C, forming a colony. In addition, since fire ants are mobile, their characteristic features include the amount of movement of the object (for example, the relative movement of the object relative to cargo C).

[0053] The classification model 20, once constructed, can be used repeatedly without modification. Therefore, the classification model 20 does not need to be reconstructed each time a control method is implemented; it can be constructed in advance before the control method is implemented and stored in the auxiliary storage unit 9 of the computing device 3.

[0054] In step S120, the image data D1-D3 of the top surface C1, bottom surface C2, and side surface C3 of cargo C can be directly input into the classification model 20. Alternatively, each image data D1-D3 can be divided into multiple regions, and the enlarged image data obtained by enlarging each divided region can be input into the classification model 20. The size of invasive species A is sufficiently small compared to the size of cargo C. Therefore, inputting the enlarged image data of each image data D1-D3 into the classification model 20 is advantageous for identifying invasive species A with higher accuracy.

[0055] In step S130, the computing device 3 performs data processing to interrupt the loading of cargo C, i.e., the target cargo CA, which has been identified as an invasive species A, to a designated location, and to instruct the cargo handling equipment 10 to store the target cargo CA in the pest control area 6. Specifically, based on the identification number of the target cargo CA linked to the image data D1 to D3, the computing device 3 issues an instruction to the cargo handling equipment 10 to interrupt the loading of the target cargo CA with that identification number. Then, the computing device 3 issues an instruction to the cargo handling equipment 10 to store the target cargo CA with that identification number in the pest control area 6. For example, when cargo handling equipment 10 is loading cargo C from a ship S to a designated location, which is an in-house chassis (cargo handling equipment 30), if cargo C is identified as the target cargo CA, the target cargo CA will not be loaded onto the in-house chassis, and will be stored in the pest control area 6 by the cargo handling equipment 10. Furthermore, the computing unit 3 can actually control the cargo handling operations of the cargo handling equipment 10, allowing the cargo handling equipment 10 to store the target cargo CA in the pest control area 6.

[0056] In the pest control process S200, invasive species A attached to the target cargo CA is controlled in the control area 6. Specifically, the computing unit 3 performs data processing to direct the spraying device 4 to spray the pesticide onto the target cargo CA stored in the control area 6. In this way, controlling invasive species A in the control area 6 not only effectively controls invasive species A, but also helps to avoid contact between invasive species A and people, thereby suppressing human harm caused by invasive species A.

[0057] The pest control process S200 is not limited to the eradication of invasive species A by spraying chemicals. For example, powders or baits capable of eradicating invasive species A may be pre-sprayed in the control area 6. Alternatively, the target cargo CA may be stored in the control area 6, and then a spraying device that functions similarly to the spraying device 4 may be transported to the control area 6 by the lifting device 16 of the cargo handling equipment 10, and chemicals may be sprayed using the spraying device to eradicate invasive species A attached to the target cargo CA stored in the control area 6. Alternatively, a roof that can be opened and closed may be installed in the control area 6 to generally seal the inside of the control area 6, and a fumigant may be vaporized inside the control area 6. Alternatively, air may be blown onto the outer surface of the stored target cargo CA (outer walls, roof, corner castings, forklift pockets, etc.) to brush off invasive species A attached to the outer surface, and measures to prevent escape, such as sealing, may be applied to the target cargo CA to prevent invasive species A present inside the cargo CA from escaping to the outside.

[0058] The port facility P illustrated in Figure 7 is, for example, a container terminal or a steel plate manufacturing facility. In this embodiment, the port facility P is a container terminal and has a large number of storage lanes L, a large number of gates G, and an administration building T that manages cargo C at the container terminal. A large number of cargo handling machines 10, 30, and 40 are in operation at the container terminal. Cargo handling machines 10, 30, and 40 are of different types, and as described above, cargo handling machine 10 is used for cargo handling on ships S. Cargo handling machine 30 represents in-house chassis (transport vehicles), external chassis, etc., and transports cargo C. Cargo handling machine 40 is used for cargo handling on storage lanes L.

[0059] When cargo C loaded onto a ship S is to be loaded and unloaded into a designated location in a storage lane L of a port facility P, cargo C is loaded and unloaded from the ship S to the cargo handling equipment 30 by the cargo handling equipment 10, transported to the target storage lane L by the cargo handling equipment 30, and then loaded and unloaded from the cargo handling equipment 30 to the designated location in the storage lane L by the cargo handling equipment 40. In this embodiment, invasive species A attached to the cargo CA is controlled during the period from when cargo C is loaded from the ship S to when it is stored in a designated location in the storage lane L of the port facility P, or more specifically, during the period from when cargo C is loaded from the ship S to when it is loaded into the cargo handling equipment 30.

[0060] As described above, according to this embodiment, the presence or absence of invasive species A attached to cargo C during cargo handling by cargo handling equipment 10 can be confirmed by data processing by the calculation device 3 using image data D1 to D3 acquired by camera devices 2a to 2c. Therefore, the manual work required for checking for invasive species A at port facilities P can be significantly reduced, and human damage caused by invasive species A can be reduced. Furthermore, cargo C with invasive species A attached is not loaded and unloaded at a designated location in port facilities P, but is stored in the control area 6, after which the attached invasive species A is controlled by the control process S200. As a result, it is possible to effectively prevent invasive species A attached to cargo C from becoming established in port facilities P or from spreading outside of port facilities P.

[0061] The cargo handling equipment 10 in this embodiment is, for example, a gantry crane that handles cargo on a ship S, and serves as the seaward entrance and exit for cargo C at the port facility P. Therefore, by equipping the cargo handling equipment 10 with the control system 1, it is possible to carry out control against invasive species A as a border control measure while the cargo handling equipment 10 is still handling cargo C. This is advantageous for controlling invasive species A without unloading cargo C at the port facility P, and minimizes damage caused by invasive species A.

[0062] Furthermore, by installing a camera device 2b on the cargo handling equipment 10, image data D2 of the underside C2 of cargo C during cargo handling by the cargo handling equipment 10 can be acquired. This allows for a more accurate understanding of the condition of the underside C2 of cargo C, where invasive species A can easily hide and breed, thus enabling more reliable identification of invasive species A attached to cargo C. In addition, since the control process S200 is performed only on the target cargo CA, the environmental impact of the chemicals sprayed by the spraying device 4 can be minimized.

[0063] The multiple camera devices 2a to 2c of the pest control system 1 may be installed on any cargo handling equipment or at any location on the port facility P, and similarly, the pest control area 6 may be installed at any location on the port facility P. For example, the pest control area 6 does not have to be installed on the cargo handling equipment 10, and may be installed at any location on the port facility P. However, it is preferable that the pest control area 6 be installed on the cargo handling equipment 10, thereby making it possible to complete the pest control method of this embodiment using only the cargo handling equipment 10. Similarly, the multiple camera devices 2a to 2c may be installed at any location on the port facility P. If a large number of camera devices 2a to 2c are installed on the port facility P, image data D1 to D3 of cargo C being handled by the cargo handling equipment 10 can be acquired, but in order to obtain clearer image data D1 to D3, it is preferable that multiple camera devices 2a to 2c are installed on the cargo handling equipment 10.

[0064] While implementing control methods at cargo handling equipment 10, which is the seaward entrance / exit for cargo C, is sufficient for countermeasures against invasive species A at port facility P, it is advisable to implement the same control methods at other locations in port facility P to more reliably prevent the establishment of invasive species A at port facility P and its spread to the outside. For example, multiple camera devices 2a-2c and a control area 6 could be installed near gate G, which is the landward entrance / exit for cargo handling equipment 30, and the control methods could be implemented near gate G. Alternatively, multiple camera devices 2a-2c could be installed on cargo handling equipment 40, and a control area 6 could be located adjacent to storage lane L, and the control methods could be implemented in storage lane L. --Note that when installing camera devices 2a-2c and control area 6 at any cargo handling equipment or location in port facility P, the computing device 3 only needs to be able to communicate with the camera devices 2a-2c and the spraying device 4, and can be installed, for example, in the administration building T of port facility P. Below, we will describe an example in which camera devices 2a to 2c and a pest control area 6 are installed near gate G, and an example in which multiple camera devices 2a to 2c are provided on cargo handling equipment 40 and the pest control area 6 is located adjacent to the storage lane L.

[0065] In an example near gate G shown in Figure 8, a preparation gate G1 and a control gate G2 are installed. The dashed line in Figure 8 indicates the boundary between the port facility P and the outside. That is, the preparation gate G1 and the control gate G2 are installed inside the port facility P. The preparation gate G1 is equipped with multiple camera devices 2a and 2c. The control gate G2 is equipped with a spraying device 4. Therefore, the area occupied by this control gate G2 is the control area 6.

[0066] Camera device 2a is installed on the ceiling of the preparation gate G1 and acquires image data D1 including the top surface C1 of cargo C placed on the loading platform of the cargo handling equipment 30. Camera device 2c is installed on the inner side of the preparation gate G1 and acquires image data D3 including the side surface C3 of cargo C placed on the loading platform of the cargo handling equipment 30.

[0067] The spraying device 4 has its piping 4c and nozzle 4d installed on the inner wall of the pest control gate G2. The pest control gate G2 covers part of the top surface C1 and side surface C3 of the cargo C placed on the loading platform of the cargo handling equipment 30.

[0068] Cargo C is transported to gate G by cargo handling equipment 30, where it is processed for departure from port facility P. When transporting cargo C to gate G, cargo handling equipment 30 passes through preparation gate G1. At this time, step S110, illustrated in Figure 5 above, is performed, and image data D1 and D3 of cargo C are acquired by camera devices 2a and 2c installed at preparation gate G1. Next, step S120 is performed by the computing device 3 installed in the administration building T. If invasive species A is not identified in step S120 (S120: NO), cargo handling equipment 30 proceeds to gate G. If invasive species A is identified (S120: YES), in step S130, cargo handling equipment 30 interrupts the transport of the target cargo CA to gate G, transports the target cargo CA to the pest control gate G2, which is the pest control area 6, and stops inside the pest control gate G2. Next, the processing unit 3 performs the pest control process S200, and the pesticide is sprayed from the spraying device 4 onto the target cargo CA stored inside the pest control gate G2.

[0069] As described above, by installing a preparation gate G1 and a control gate G2 near gate G, which is the land-side entrance / exit to port facility P, it becomes possible to implement control methods near gate G, and to take measures against invasive species A at the water's edge for cargo C being shipped out of port facility P. This is advantageous in preventing invasive species A from spreading outside port facility P. Multiple camera devices 2a and 2c can also be installed at gate G or control gate G2. In this case, preparation gate G1 can be omitted.

[0070] In the example of port facility P illustrated in Figure 9, a pest control area 6 is located adjacent to the storage lane L. This pest control area 6 can be located at any location adjacent to the storage lane L. The pest control area 6 is where the target cargo CA is stored, and it is preferable that it covers the entire underside C2 and side C3 of the stored target cargo CA, as illustrated in Figures 2 and 3 above. In particular, small insects such as fire ants can enter even the smallest gaps in the ground of the port facility P and their reproduction can spread. Therefore, by having the pest control area 6 completely cover the entire underside C2 and side C3 of the stored target cargo CA without any gaps, it is advantageous to prevent invasive species A attached to the target cargo CA from escaping onto the ground of the port facility P. Multiple target cargo CA may be stored in the pest control area 6. Although sheet metal or other plate materials can be used for the floor and walls of the pest control area 6, the ground of the port facility P can also be used.

[0071] The cargo handling equipment 40 illustrated in Figure 10 is used to handle cargo C on a storage lane L. The cargo handling equipment 40 can be, for example, a known transfer crane. The cargo handling equipment 40 has a girder 41, a leg structure 42, a traveling device 43, a trolley 44, a wire rope 45, and a lifting device 46. The cargo handling equipment 40 is further equipped with camera devices 2a and 2b and a lighting device 5.

[0072] The girder section 41 is supported on the upper part of the leg structure 42 and connects adjacent leg sections 42a in the Y direction. A traveling device 43 is installed at the lower end of the leg structure 42. This leg structure 42 has four leg sections 42a and sill beams 42b that connect adjacent leg sections 42a in the X direction. The trolley 44 runs along the girder section 41. The lifting device 46 is suspended by a wire rope 45.

[0073] Camera device 2a is installed on the trolley 44 and / or lifting device 46 and acquires image data D1, D3 including the top surface C1 and / or side surface C3 of cargo C before or after loading / unloading. Camera device 2b is installed on the lower end of the leg structure 42 and acquires image data D2 including the bottom surface C2 of cargo C during loading / unloading.

[0074] In the cargo handling equipment 40, when handling cargo C, the height of the underside C2 of cargo C from the ground is raised higher than the height of the top surface of the tractor head of the cargo handling equipment 30 (in-house chassis, external chassis) from the ground (for example, about 3m to 5m). Therefore, the minimum height H of the underside C2 of cargo C from the ground during cargo handling by the cargo handling equipment 40 is higher than the height of the top surface of the sill beam 42b from the ground. The camera device 2b acquires image data D2 including the underside C2 of cargo C at the moment when the height of the underside C2 of cargo C from the ground reaches the minimum height H before and after the trolley 44 moves, or while the height of the underside C2 of cargo C from the ground is maintained at the minimum height H during the trolley 44's movement. The camera device 2b is installed in a part lower than the minimum height H. This part includes the sill beam 42b, the running gear 43, and the part of the leg 42a that is lower than the minimum height H. In this embodiment, the camera device 2b is installed on the upper surface of the central part of the sill beam 42b in the X direction.

[0075] Cargo C is transported to storage lane L by cargo handling equipment 30, and then loaded and stored in a designated location in storage lane L by cargo handling equipment 40. When cargo C is loaded from cargo handling equipment 30 to the designated location in storage lane L, step S110, illustrated in Figure 5 above, is performed, and image data D1 and D2 of cargo C are acquired by camera devices 2a and 2b installed on cargo handling equipment 30. Next, step S120 is performed by the computing device 3 installed in the management building T. If the invasive species A is not identified in step S120 (S120: NO), cargo C is stored in a designated location in storage lane L by cargo handling equipment 40. If the invasive species A is identified (S120: YES), in step S130, cargo handling equipment 40 stores the target cargo CA in a pest control area 6 adjacent to storage lane L. At this time, the target cargo CA may be stored in the pest control area 6 by both the cargo handling equipment 40 and the cargo handling equipment 30. For example, the cargo handling equipment 40 stores the target cargo CA on the loading platform of the cargo handling equipment 30, the cargo handling equipment 30 transports the target cargo CA to the pest control area 6, and the cargo handling equipment 40 stores the transported target cargo CA in the pest control area 6. Then, the pest control process S200 is performed by the computing device 3.

[0076] As described above, by installing multiple camera devices 2a and 2b on the cargo handling equipment 40 that handles cargo in the storage lane L, it becomes possible to check for invasive species A attached to cargo C even while cargo is being handled in the storage lane L. Furthermore, by arranging a control area 6 adjacent to the storage lane L, it becomes possible to quickly isolate the target cargo CA in the storage lane L. This is advantageous in preventing invasive species A from becoming established in the port facilities P.

[0077] The multiple camera devices 2b and 2c illustrated in Figure 11 are installed in the pest control area 6. Specifically, camera device 2b is installed on the floor wall 6a of the pest control area 6 and is pointed upwards. Camera devices 2c are installed on each side wall 6b of the pest control area 6 and are pointed towards the center of the pest control area 6 in a plan view. When multiple camera devices 2b and 2c are installed in the pest control area 6 in this way, the cargo handling equipment 10 and 40 temporarily store the cargo C being handled in the pest control area 6. At this time, image data D2 and D3 of the cargo C being handled are acquired by the multiple camera devices 2b and 2c. Because the cargo C being handled is temporarily stored in the pest control area 6, the time required for handling the cargo C is increased, but the distance between the cargo C and the multiple camera devices 2b and 2c becomes closer. As a result, clearer image data D2 and D3 can be acquired, which is advantageous for identifying the invasive species A attached to the cargo C. Furthermore, this pest control area 6 may be installed on the cargo handling equipment 10, or it may be located adjacent to the storage lane L.

[0078] The classification model 20A illustrated in Figure 12 is pre-built by performing machine learning using training data 21A on the computing device 3. This classification model 20A can be used in place of classification model 20 in step S120 of Figure 5 above. Classification model 20A differs from classification model 20 in that it classifies objects present in image data D1 to D3 to identify invasive species A, while classification model 20A classifies objects present in image data D1 to D3 to identify cargo C to which the objects are attached. That is, classification model 20A considers all objects attached to cargo C in image data D1 to D3 as invasive species A and identifies invasive species A.

[0079] More specifically, the training data 21A uses various image data D4 of cargo C without any objects attached, and various image data of cargo C with an invasive species A, or an object suspected to be an invasive species A, attached. The labels indicate, for example, "attached" if cargo C in the training image data D4 has other objects, including invasive species A, attached to it, and "not attached" if cargo C does not have other objects attached to it. Therefore, the constructed classification model 20A can classify the objects in the input image data D1 to D3 and identify cargo C with other objects, including invasive species A, attached to it, and cargo C without other objects, including invasive species A, attached to it, from among the classified objects.

[0080] In step S120 using this classification model 20A, unless there are no other objects attached to cargo C in the image data D1-D3, the object attached to cargo C is identified as invasive species A, or suspected to be invasive species A. This allows cargo C, which is highly likely to have invasive species A attached, to be treated as target cargo CA, which is advantageous for more reliable control of invasive species A.

[0081] In step S120, depending on the situation of cargo C, one can choose between classification model 20, as exemplified in Figure 6 above, and classification model 20A, as exemplified in Figure 12 above. When controlling fire ants as an invasive species A, for example, classification model 20A can be used for vessels S that have transported cargo C by sea from South America or port facilities where fire ants have been confirmed to be established, while classification model 20 can be used for other vessels S. This ensures the certainty of controlling invasive species A and guarantees the efficiency of cargo handling C.

[0082] After performing the pest control process S200 shown in Figure 5 above, it is advisable to acquire image data of the floor wall 6a of the control area 6 using the camera device 2a and use this image data to check for dead or remaining invasive species A. This allows for understanding the results of the pest control process S200. For example, if no dead or remaining invasive species A are found in the image data of the floor wall 6a of the control area 6 after performing the pest control process S200, it can be determined that cargo C, which underwent the pest control process S200, was not infected with invasive species A. By evaluating the results after performing the pest control process S200 in this way, cargo handling of cargo C that is not infected with invasive species A can be resumed more quickly. Furthermore, by re-inspecting cargo C that is infected with invasive species A after the pest control process S200, pest control of invasive species A can be carried out more reliably.

[0083] The embodiments described above can be applied not only to the control of invasive species A when cargo C loaded onto a ship S is unloaded at a port facility P, but also to the control of native species (invasive alien species in other countries) when cargo C stored at port facility P is loaded onto a ship S. Examples of these native species include stink bugs, spotted longhorn beetles, kudzu, and wakame seaweed. This prevents cargo C, which may be contaminated with native species designated as invasive alien species overseas, from being loaded onto a ship S.

[0084] Although embodiments of the present invention have been described above, the invasive species control system and control method for port facilities, as well as the cargo handling equipment for port facilities, are not limited to specific embodiments of the present invention, and various modifications and changes are possible within the scope of the gist of the present invention. [Explanation of symbols]

[0085] 1. Pest Control System 2a~2c Camera device 3 Computing device 4 Spraying equipment 4a Tank 4b Pump 4c piping 4D nozzle 5. Lighting equipment 6. Pest control area 6a Floor and Wall 6b side wall 7. Arithmetic Processing Unit 8 Main memory 9 Auxiliary storage 10. Material handling equipment 11 digit part 12 leg structure 12a Legs 12b Silbeam 12c Tibeam 12d Portal Tie Beam 12e Diagonal member 13. Running gear 14 Trolley 15 Wire rope 16 Hanging equipment 20, 20A Classification Model 21, 21A Training data 30. Material handling equipment 40. Material handling equipment 41 Garda 42 Leg structure 42a Legs 42b Silbeam 43. Running gear 44 Trolley 45 Wire rope 46 Hanging equipment C Cargo D1~D3 Image Data A Alien species CA-eligible cargo P Port facilities L Storage Lane G Gate G1 Preparation Gate G2 Pest Control Gate T Administration Building

Claims

1. An alien species control system at port facilities for controlling alien species attached to cargo handled by cargo handling equipment, The system includes a camera device for acquiring image data of the cargo being loaded and unloaded at a designated location in the port facility, and a computing device. A control area is defined as a compartment capable of storing the cargo, which is located in a place different from the aforementioned designated location, and where the aforementioned invasive species attached to the cargo are controlled. An alien species control system for port facilities, wherein the computing device performs data processing to identify the alien species based on the image data of the cargo, and data processing to interrupt the loading and unloading of the cargo, in which the alien species has been identified, to the predetermined location, and to cause the cargo handling equipment to store the cargo in the control area.

2. The aforementioned computing device has a memory unit in which a classification model constructed by machine learning is stored. The invasive species control system for port facilities according to claim 1, wherein the classification model is used in the data processing to identify the invasive species.

3. The port facility has a seaward entrance as an entrance to and from the outside, the seaward entrance is the cargo handling equipment used for loading and unloading cargo onto ships anchored at the port facility, and the camera device and the pest control area are installed on the cargo handling equipment, the invasive species control system in a port facility according to claim 1.

4. The port facility has a land-side entrance as an entrance to and from the outside, the land-side entrance is a gate through which cargo handling equipment traveling to and from the outside of the port facility passes, the camera device is installed at the gate, and the control area is installed near the gate, the invasive species control system in a port facility according to claim 1.

5. The invasive species control system for a port facility according to claim 1, wherein the control area is adjacent to a storage lane where the cargo is stored in the port facility, and the camera device is installed on the cargo handling equipment that handles cargo in relation to the storage lane.

6. The invasive species control system for a port facility according to claim 1, wherein the camera device is installed at the lower end of the cargo handling equipment, and the camera device acquires image data of the underside of the cargo while it is being handled by the cargo handling equipment.

7. The invasive species control system for a port facility according to claim 1, wherein the control area covers the entire circumference and bottom of the sides of the stored cargo.

8. Furthermore, the system for controlling invasive species in a port facility according to any one of claims 1 to 7, comprising a spraying device installed in the control area, wherein the computing device controls the spraying device to spray an agent for eradicating the invasive species toward the cargo stored in the control area.

9. A method for controlling invasive species in port facilities, which involves controlling invasive species attached to cargo handled by cargo handling equipment, The process includes a preparation step carried out during cargo handling at a designated location in the port facility, and a pest control step carried out in a pest control area located at a location different from the designated location. In the preparation step, image data of the cargo being loaded to the predetermined location by the cargo handling equipment is acquired by a camera device. By processing the aforementioned image data using a computing device, the invasive species in the image data is identified. The loading and unloading of the cargo in which the invasive species has been identified to the designated location is interrupted, and the cargo is stored in the pest control area using the loading and unloading equipment. A method for controlling invasive species in port facilities, wherein the control step involves controlling the invasive species attached to the cargo.

10. Cargo handling equipment for a port facility, comprising an alien species control system for port facilities according to any one of claims 1, 2, 6, or 7.

11. Cargo handling equipment for a port facility according to claim 10, comprising the aforementioned pest control area.

12. Furthermore, the cargo handling equipment for a port facility according to claim 11, comprising a spraying device installed in the pest control area, wherein the computing device controls the spraying device to spray an agent for eradicating the invasive species toward the cargo stored in the pest control area.

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