JP2015174767A - Device for identifying garbage bag, and identification system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To identify the capacity and the separated content of a garbage bag having transparent, translucent, white or opaque white color.SOLUTION: On a garbage bag (1) having transparent, translucent, white or opaque white color, an identification cord (4) for identifying the capacity and the separated content of the garbage bag (1) is printed or written with a fluorescent paint. When identifying, a black light (20) is radiated to the garbage bag (1), and the identification cord (4) reacts against radiated ultraviolet ray to emit light. Since the contrast ratio between the identification cord (4) emitting light and a base material of the garbage bag (1) becomes large, the identification cord (4) can be extracted and identified by processing image data photographed with a camera (21a, b) by using processing means. Therefore, the capacity and the separated content can be identified even for the garbage bag (1) having transparent, translucent, white or opaque white color.

Description

  The present invention relates to identification of garbage bag capacity, sorting contents, and the like.

In order to reduce the amount of trash, the local governments are obliged to separate the trash and charge a processing fee according to the amount of the trash. Therefore, when collecting garbage, it is necessary to grasp the type and amount of collected garbage bags.
For example, there is a method disclosed in Patent Document 1 as a method for identifying the capacity of garbage bags, the contents of sorting, and the like. In this method, the entire surface of the bag is colored with three or more different colors, each of which is a single color and has colored portions of the same shape and dimensions. The areas of the colored portions for each color are made equal to each other. And this garbage bag is a designated garbage bag based on whether or not each partial area in the garbage bag image extracted by image processing has a color used for the designated color pattern pattern. It is to discriminate.

JP 2010-1133 A

However, the above method has a problem in that it cannot be used for garbage bags such as transparent, translucent, white or milky white because it is necessary to apply a color pattern to the entire garbage bag. This is because “transparent”, “translucent”, “white” can be used to check the contents of garbage bags designated by the local government for reasons such as separate collection, prevention of contamination with recyclable materials, and ensuring safety during collection. This is because “white” is adopted.
Even if the identification pattern is provided on a part of the surface of the trash bag, the trash bag is handled in a random manner, so that it is not always photographed in the same posture. As a result, if the trash bag is transparent, translucent, white or milky white, the contents of the transparent bag will be photographed simultaneously with the pattern provided on a part of the surface. If it does so, the problem which becomes difficult to distinguish both easily by image processing from the image | photographed image also generate | occur | produces.

  Accordingly, an object of the present invention is to make it possible to identify the capacity of a garbage bag such as transparent, translucent, white or milky white, and the contents of separation.

  In order to solve the above problems, in the present invention, a transparent, translucent, white or milky white garbage bag having an identification code printed or filled with a fluorescent paint on the surface, and an ultraviolet inspection light (hereinafter referred to as a black light) that illuminates the garbage bag. ), A camera for photographing the garbage bag irradiated with the black light, and a processing means for processing the image data of the photographed camera and extracting a light emitting portion.

  By adopting such a configuration, when a black, light, or semi-transparent, white or milky white garbage bag printed or filled with an identification code with a fluorescent paint is irradiated with black light, the identification code reacts to the irradiated ultraviolet light. Fluoresce. Therefore, the emitted identification code is photographed by a camera, and the image data of the photographed camera is processed to extract a light emitting portion. At this time, since the contrast ratio between the transparent or translucent, white or milky white garbage bag base or contents and the emitted identification code increases, the identification code can be easily extracted. As described above, since the identification code can be easily extracted by using light emission, identification by image processing is also easy.

  At this time, it is possible to adopt a configuration in which the illumination composed of the black light and the camera are integrated and accommodated in a case to form an identification unit.

  By adopting such a configuration, by integrating the illumination and camera, if the camera's shooting position is determined according to the illumination area and installed in advance, the illumination area and the shooting area By avoiding traps, recognition errors can be reduced. Moreover, the lighting and camera can be handled easily.

  A configuration in which a frame-shaped identification gate is provided at the input port of the garbage collection vehicle for loading the garbage bag, and an illumination unit composed of a black light and a camera or an identification unit in which the illumination and the camera are integrated is arranged on the frame-shaped identification gate. Can be adopted.

  By adopting such a configuration, the garbage bag can be made to read the identification code only by being thrown into the garbage truck through the identification gate.

  It is possible to adopt a configuration in which a passage sensor for detecting the passage of the garbage bag and controlling the black light of the identification gate and the camera is provided at a position before and after the garbage bag passes the camera of the identification gate.

  By adopting such a configuration, when the garbage bag is put into the identification gate, the passage sensor detects it, and the illumination and the camera can be operated to recognize the identification code of the garbage bag. On the other hand, when the thrown garbage bag passes through the identification gate, the passage sensor detects it and stops the illumination and the camera. In this way, it is possible to reduce misrecognition by controlling to recognize only when a garbage bag is inserted.

  Moreover, the structure which formed the identification code printing part which hardened the bag at the said garbage bag at this time is employable.

  By adopting such a configuration, a groundwork suitable for printing and filling has been formed, so it is easy to print or fill in the identification code on the trash bag, and even if trash is put in the trash bag, the printed part can be deformed. It can suppress and improve the recognition rate.

  At this time, an identification code is printed or filled with fluorescent paint on the surface of the garbage bag, and the garbage bag on which the identification code is printed or filled is irradiated with black light and photographed with a camera. A method of extracting the fluorescent part by processing and managing the garbage bag based on the extracted identification code can be adopted.

  By adopting such a method, when the emitted identification code is photographed with a camera and extracted, the identification code can be extracted and identified.

  Since the present invention is configured as described above, the garbage bags can be identified and managed.

Perspective view of an embodiment (A) Perspective view of garbage bag, (b) Identification code table Block diagram of garbage bag identification device Perspective view of identification gate Front view of identification unit (A) Action explanation diagram of identification gate, (b) Action explanation diagram of identification gate (A) Front view of the passage sensor (b) Side view of the passage sensor Control box block diagram (A) Action illustration, (b) Action illustration Flow chart of embodiment Action diagram Flow chart of embodiment (A) Action illustration, (b) Action illustration (A) Action illustration, (b) Action illustration

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.
As shown in FIG. 1, the garbage identification system of the present application includes a garbage bag 1 with an identification code 4 and a garbage bag identification device 2, and the garbage bag identification device 2 is attached to a garbage collection vehicle (packer vehicle) 3. Is provided.
In this embodiment, the garbage bag identification device 2 is described as being installed in the garbage truck 3, but the present invention is not limited to this. Other than this, for example, it can be installed in a treatment facility such as a garbage incineration plant.

The garbage bag 1 is a transparent, translucent, white, milky white plastic bag designated by the local government, and the transparent, translucent, white, milky white garbage bag 1 is printed with an identification code 4 with a fluorescent paint. is there.
In this embodiment, the identification code 4 can be easily printed on the garbage bag 1 by forming a cured printing portion 5 on a part of the garbage bag 1.
For example, as shown in FIG. 2A, the printing unit 5 is formed by applying a hardened paint (ink) to the approximately 1/3 portion (hatched line) of the garbage bag 1 by transparent silk printing. Silk printing is used in this way because silk printing requires less printing pressure, and can print even on curved surfaces, and can increase the amount of ink, so the effect of covering the ground completely can be expected. is there.
In this embodiment, silk printing is used for the printing unit 5, but the printing unit 5 may be formed by other methods. For example, a coating material for curing (for example, acrylic) may be applied to the back surface, or a film may be attached (increased in thickness) instead of these coatings and cured. In this way, the garbage bag 1 is stretched to facilitate the printing of the identification code 4. Then, the recognition rate of the identification code 4 is improved and the deformation of the garbage bag 1 when dust is put is prevented to improve the reading accuracy and the identification accuracy.
In this case, the fluorescent paint is an oil-based fluorescent light-emitting paint that is quickly dried, so that the identification code is hardly affected (flowed or smeared) even when wet with rain.
The identification code 4 is a combination of numbers to indicate the capacity of the garbage bag 1 or the type of garbage. Here, a combination of two-digit numbers is used as shown in FIG. 2 (b). doing.
And this identification code 4 is printed on the printing part 5 of the garbage bag 1 over the perimeter of the garbage bag 1 at equal intervals. For this printing, for example, a fluorescent paint previously printed with a printer or the like may be prepared, and when the printed material is lost, it can be written by hand.

  As shown in FIG. 3, the garbage bag identification device 2 includes an identification gate 10, a control box 11, an operation box 12, and an in-vehicle management terminal 13, and the identification gate 10, the operation box 12, and the in-vehicle management terminal 13. Is connected to the control box 11 by a cable.

As shown in FIG. 4, the identification gate 10 includes a frame body 14, identification units 15 a and 15 b attached to the frame body 14, and passage sensors 16 a, b, 17 a and b. The frame body 14 is, for example, a rectangular parallelepiped frame formed from lightweight steel. In this embodiment, the two rectangular frames are a front frame 10a and a rear frame 10b, and are arranged in parallel at a distance from each other. The four corners are connected by a frame material. The rectangular frame 10b on the rear side of the frame body 14 is attached so as to face the garbage input port 6a of the garbage truck 3. Further, here, a dividing frame 10c is provided at the center of the rectangular frame of the frame body 14, and is divided into two right and left identification areas.
Further, in this embodiment, in order to attach the passage sensors 16a, b and 17a, b as will be described later, recesses are provided at both ends of the rectangular frame before and after the frame body 14. In other words, the rectangular frame has a configuration in which the concave portions are provided in the vertical frames at both ends in the width direction. By doing so, as will be described later, the garbage bag 1 passing through the front and rear of the cameras 21a, 21b of the identification units 15a, 15b is detected.

As shown in FIG. 5, the identification units 15a and 15b are composed of an illumination 20 and two cameras 21a and 21b. The illumination 20 is called an ultraviolet flaw detection lamp (hereinafter referred to as a black light). Here, a plurality of ultraviolet LEDs having a wavelength of 375 nm are arranged concentrically as shown in FIG. 5 and have a half-value angle of about 30 degrees. It has directivity.
Cameras 21a and 21b are CCD color video cameras, not for ultraviolet photography but for visible light photography. The cameras 21a and 21b have a wide angle (fisheye) lens with a wide angle of view and a short focal length.
The black light 20 and the two cameras 21a and 21b have the black light 20 at the center and the cameras 21a and b arranged on both sides thereof. The cameras 21a and 21b are respectively shown in FIG. 6 (b). As shown, the case is housed integrally in the case at an angle so as to face slightly inside.
Further, the case containing the cameras 21a, 21b and the black light 20 is attached to each side of the frame body 14 by one unit 15a, 15b with the cameras 20a, 20b up and down (vertical).
Then, by arranging the identification units 15a and 15b in this way, imaging (recognition) areas as shown in FIGS. 6A and 6B are formed in accordance with the shape of the frame body 14. FIG.
As described above, since the positions of the cameras 21a and 21b are determined in advance according to the illumination area of the black light 20 and attached integrally, it is possible to eliminate the difference between the illumination area and the shooting (recognition) area. Therefore, a recognition error due to an attachment error can be avoided, and the handling can be simplified.

As shown in FIGS. 7A and 7B, the passage sensors 16a, b, 17a, b are obtained by arranging optical sensors 18a, 18b in a rod-shaped case, and the rod-shaped case is a frame of the identification gate 10 described above. It is formed in a shape that fits into the recesses at both ends of the body 14. In addition, here, reflection type photo interrupters are used for the optical sensors 18a and 18b, and they are arranged at two locations on the longitudinal side of the rod-like case.
Then, when this rod-shaped case is attached to the frame body 14, the identification gate 10 has reflectors 19a, b as shown in FIG. 4 in the central divided frame 10c facing the photo interrupter of the case. And the garbage bag 1 thrown into the identification gate 10 can be detected by reflecting the detection light from the photo interrupter.

As shown in FIG. 1, the control box 11 and the operation box 12 are attached to the side portion of the hopper cover 6 of the packer vehicle 3.
As shown in FIG. 8, the control box 11 includes a DSP 30, an I / O interface 31, and a CPU (one-chip CPU) 32, and the CPU 32 receives the identification unit 15 a, via the DSP 30 and the I / O interface 31. b, the passage sensors 16a, b, 17a, b, the in-vehicle management terminal 13 and the operation box 12 are connected.
The DSP (digital signal processor) 30 is a processor provided for image processing, and is connected to the cameras 21a and 21b of the identification units 15a and 15b.
The I / O interface 31 includes a sensor interface 33, a light lighting interface 34, an external communication interface 35, and an input / output interface 36.
The sensor interface 33 connects the passage sensors 16a, b, 17a, b and the CPU 32, and inputs the outputs of the passage sensors 16a, b, 17a, b to the CPU 32.
The light lighting interface 34 is for connecting the black light 20 of the identification units 15a and 15b and the CPU 32, and the black light 20 is turned on and off by the output of the CPU 32.
The external communication interface 35 is an interface (for example, RS232C / USB conversion) for connecting the CPU 32 and the in-vehicle management terminal 13 and is responsible for data transmission between the CPU 32 and the in-vehicle management terminal 13.
The input / output interface 36 connects the CPU 32 and the operation box 12, inputs an operation of the operation box 12 to the CPU 32, and inputs a display (lighting) output from the CPU 32 to the operation box 12.

  As shown in FIG. 3, the operation box 12 is input to an operation switch 37b for controlling the operation of the packer (loading hydraulic device) of the collection vehicle 3, an abnormal stop switch 37a for emergency stop of the operation, and a gate. A recognition indicator lamp 38 is provided to notify that the garbage bag has been recognized.

The in-vehicle management terminal 13 includes an in-vehicle personal computer 39 and a display device (display) 40, and the display device 40 is connected to the personal computer 39 and installed in the driver's seat.
As described above, the in-vehicle personal computer 39 is connected to the identification units 15a, 15b and the passage sensors 16a, b, 17a, b of the identification gate 10 through the control box 11. The identification units 15 a, b and the passage sensors 16 a, b, 17 a, b exchange data with the vehicle-mounted personal computer 39 via the control box 11.
The in-vehicle personal computer 39 has an application for collecting and managing garbage bags, records the collection history and collected data of the garbage bags 1 based on the data from the control box 11, and records the recorded data on the display device 40. indicate. Furthermore, the in-vehicle personal computer 39 has a navigation application and map data, and is provided with a GPS receiver so that it can guide the garbage collection course of the day. In the case of this form, the display device 40 is a touch panel and can be input.
In this case, the I / O interface 31 as described above is used for connection with an external device, but it goes without saying that a LAN may be used in addition to this.

This configuration is configured as described above, and a garbage bag 1 on which code information of “capacity” or “type of garbage” is printed or prepared in advance is distributed or distributed to a garbage collection destination. . Then, at the garbage collection destination, the garbage is sorted based on the type of the identification code 4 printed on the garbage bag 1 and put in the bag, and is taken out to the designated garbage storage place on the designated date.
On the other hand, the garbage truck 3 touches the “navigation screen” button on the menu screen 50 displayed on the driver's seat display device 40 as shown in FIG. 9A, for example, as shown in FIG. 9B. Then, the screen is switched to the collection navigation screen 51. Then, a map clearly showing the collection location corresponding to today's schedule is displayed. By following the navigation screen 51, it is possible to carry out garbage collection work.

  When the user arrives at the garbage storage area, the navigation screen 51 is switched to the menu screen 50 and the “collection work start” button is touched. Then, the garbage bag identification device 2 is activated, and the identification of the garbage bag 1 becomes standby, and the collection of the garbage bag 1 can be started. In the same manner as in the prior art, after the operator operates the operation switch 37b of the operation box 12, the trash bag 1 is inserted into the trash input 6a of the trash collection vehicle 3. Through.

Hereinafter, the recognition process will be described based on the flowcharts of FIGS. 10 and 12.
That is, the passage sensors 16a and 16b of the identification gate 10 are in a standby state by polling as shown in the process 100 of the flowchart of FIG. Therefore, when the garbage bag 1 blocks the passage sensors 16 a and 16 b attached to the front frame 10 a of the identification gate 10, the signal is sent to the CPU 32 of the control box 12 through the sensor interface 33. Then, CPU32 which received the signal starts identification unit 15a, b, and starts recognition processing.

In the recognition process, the CPU 32 turns on the black light 20 of the identification units 15a and 15b via the light lighting interface 34 and operates the DSP 30 to capture the image data of the cameras 21a and 21b.
That is, in the process 200, as shown in FIG. 11, the black light 20 is turned on (irradiated), and the garbage bag 1 is photographed with the cameras 21a and 21b. If it does in this way, in response to the ultraviolet rays with which the identification code 4 of the printing part 5 formed around the garbage bag 1 was irradiated, fluorescence is emitted. Therefore, the emitted identification code 4 is photographed by the cameras 21a and 21b, and the image data of the photographed cameras 21a and 21b is processed to extract a light emitting portion. In particular, in the dark at the time of garbage collection such as night or dawn, for example, the base of the transparent, translucent, white or milky white garbage bag 1 irradiated with the black light 20 is colored violet. On the other hand, the identification code 4 printed with the fluorescent paint emits white light, and the contrast ratio increases, so that the identification code 4 can be easily extracted. In this way, the identification code 4 is emitted to increase the contrast ratio with the base of the garbage bag 1 so that the garbage bag 1 is transparent, translucent, white, milky white. Recognized without being affected by the contents.

At this time, the identification code 4 is extracted, for example, by dividing the identification code 4 of the images captured by the cameras 21a and 21b into numbers. Next, the divided numbers are divided, and the number of intersections and ends of the line segments for each divided block is calculated as shown in FIG. And the number is recognized by comparing the calculated number of intersections and ends with a database in which the number of intersections and ends for each number is calculated in advance.
In addition, this process is performed on a plurality of continuous captured images so as to improve the recognition rate. For example, it is considered that the recognition accuracy can be improved by calculating the recognition results of a plurality of captured images and determining the code from the majority vote.
At that time, a method of determining the number of captures in advance or a method of performing until the garbage bag 1 passes through the passage sensors 17a and 17b on the frame on the rear side of the identification gate 10 can be considered. In this embodiment, as in the process 200 of FIG. 10, the number of captures is determined in advance and a register 60 corresponding to the number is provided. In either case, when it is detected that the garbage bag 1 has passed through the passage sensors 16a, b of the front frame 10a and has passed (shielded) through the passage sensors (exit side) 17a, b of the rear frame 10b. (Processing 250) The captured data is stored in the storage means in the personal computer 39, the recognition result is displayed on the display device 40 of the in-vehicle management terminal 13, and the recognition indicator lamp 38 of the operation box 12 is turned on. Sound a buzzer to inform the worker. The recognition result is processed by the personal computer 39, for example, and a list or a totaled result can be extracted as data (processing 300).

By the way, this recognition system also copes with the case where the garbage bag 1 thrown into the identification gate 10 stays in the identification gate 10.
For example, in the process 400, when the garbage bag 1 is detected by the passage sensors 16a and 16b of the frame 10a on the front side of the identification gate 10, an internal timer is activated to measure the time during which the sensors 16a and 16b are shielded from light. . In this way, when the light shielding time exceeds the specified value, it is determined that the garbage bag 1 is caught on the frame 10a on the front side of the identification gate 10. Therefore, “system abnormality” is displayed on the display device 40 of the in-vehicle management terminal 13 and the indicator lamp 38 of the operation box 12 is flashed in red. In addition, an alarm buzzer is sounded to notify the worker. The worker who has received the notification can operate the abnormal stop switch 37a of the operation box 12 to stop the packer, and then reinsert the garbage bag 1 to continue the collection operation.

  Further, in the process 500, when the garbage bag 1 is detected by the passage sensors 17a, b of the frame 10b on the rear side of the identification gate 10, an internal timer is operated to measure the time during which the sensors 17a, b are shielded from light. . In this way, when the light shielding time exceeds the specified value, it is determined that the garbage bag 1 is caught by the frame 10b on the rear side of the identification gate 10. Therefore, “system abnormality” is displayed on the display device 40 of the in-vehicle management terminal 13 to reset the recognition result, and the indicator lamp 38 of the operation box 12 is blinked in red. The operator can continue the collection work by operating the abnormal stop switch 37a of the operation box 12 to stop the packer and then reinserting the garbage bag 1.

  Further, in the process 600, when the garbage bag 1 passes the passage sensors 16a and 16b of the front frame 10a of the identification gate 10, the timer is activated and the passage sensors 16a and 16b of the front frame 10a are shielded within a specified time. Detect whether or not At this time, if the passage sensors 16a and 16b are shielded from light, it is determined that the garbage bag 1 is staying because it is in the identification gate 10. Therefore, “system abnormality” is displayed on the display device 40 of the in-vehicle management terminal 13 to reset the recognition result, and the indicator lamp 38 of the operation box 12 is blinked in red. The worker operates the abnormal stop switch 37a of the operation box 12 to stop the packer, and then inserts the garbage bag 1 again to continue the collection work.

On the other hand, in the process 700, misrecognition due to the rebound of the garbage bag 1 is also dealt with.
For example, if the garbage bag 1 passes the passage sensors 17a, b of the frame 10b on the rear side of the identification gate 10, the timer is activated to check whether the passage sensors 17a, b of the rear frame 10b are shielded within a specified time. Is detected. At this time, if the passage sensor 17a, b is once shielded and then the light shielding is canceled within a specified time, if the dust bag 1 is not detected by the passage sensor 16a, b of the front frame 10a, FIG. As indicated by reference numerals (ii) to (iv), it is determined that the garbage bag 1 has bounced back and returned into the hopper so that the collection operation can be continued.
In this way, erroneous recognition can be reduced by performing control so as to recognize only when the garbage bag 1 is inserted.

Furthermore, in this recognition system, even when a plurality of garbage bags 1 are thrown into the identification gate 10 by photographing the garbage bags 1 with the two cameras 21a and 21b arranged above and below the identification units 15a and 15b. I can do it.
That is, the two cameras of the identification units 15a and 15b are arranged with the lens inclined inward toward the central black light 20 as shown in FIG. 6B. Therefore, the shooting areas (recognition areas) of the two cameras 21a and 21b are the same in the horizontal direction and slightly shifted in the vertical direction as shown in FIGS. 6 (a) and 6 (b).
This is because the height of the plurality of garbage bags 1 thrown in at the same time is different. For example, as shown in FIG. Since the portion of the garbage bag 1 on the other side where the garbage bag 1 overlaps cannot be seen from the image of the camera 21a on the stand, there is a possibility that it is regarded as one garbage bag 1. Therefore, as shown in FIG. 13B, when captured by the two upper and lower cameras 21a and 21b and the captured images are compared, for example, the areas of the overlapping portions of the captured images are different, and the garbage bag 1 is located on the other side. I know that there is. Therefore, if the identification code 4 is recognized, the other side garbage bag 1 hidden behind the front garbage bag 1 can be recognized.
In this way, if two images captured at the same timing are used, the overlapping garbage bags 1 can be identified and identified as a plurality of garbage bags 1.

When the collection of the garbage bags 1 is completed in this way, the “end” button on the screen of the driver's seat display device 40 is touched to stop the packer device. When the “collection history” button is touched, the screen is switched to the collection screens 52 and 53 as shown in FIGS. 14A and 14B, and a history list is displayed. Further, this list can be saved in a memory means connected to the USB port by touching the “collected data saving” button.
In this way, the garbage bag 1 can be identified and managed.

DESCRIPTION OF SYMBOLS 1 Garbage bag 2 Garbage bag identification apparatus 3 Garbage collection vehicle 4 Identification code 5 Printing part 10 Identification gate 15a Identification unit 15b Identification unit 16a Passing sensor 16b Passing sensor 17a Passing sensor 17b Passing sensor 20 Black light 21a Camera 21b Camera

Claims (6)

  Illumination consisting of a transparent, translucent, white or milky white trash bag with an identification code printed or written with fluorescent paint on the surface, an ultraviolet flaw detection lamp (hereinafter referred to as black light) that illuminates the trash bag, and the black light is irradiated A garbage bag identification device comprising a camera for photographing a garbage bag and a processing means for processing image data of the photographed camera and extracting a fluorescent portion.   2. The garbage bag identification device according to claim 1, wherein the illumination unit comprising the black light and the camera are integrated into an identification unit accommodated in a case.   A frame-shaped identification gate is provided at an inlet of a garbage collection vehicle for introducing the garbage bag, and illumination and a camera or an identification unit made of black light are arranged at the identification gate provided at the inlet. The garbage bag identification device according to 1 or 2.   4. The passage sensor for detecting the passage of the garbage bag and controlling the black light of the identification gate and the camera at a position before and after the garbage bag passes the camera of the identification gate. The garbage bag identification device described.   The garbage bag identification device according to any one of claims 1 to 4, wherein a printing unit for printing or entering an identification code obtained by curing the bag on the garbage bag is formed.   Print or fill in an identification code with fluorescent paint on the surface of the garbage bag, illuminate the garbage bag with the identification code printed or filled in with a black light, shoot with the camera, process the captured image data, and select the fluorescent part And a garbage bag management system for managing garbage bags based on the extracted identification code.

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