JP2019131327A - Work managing device, work managing method, and computer program - Google Patents

Abstract

To provide a work managing device for managing a work of a forklift in a warehouse.SOLUTION: A work managing device generates determination result information by determining that ID of each print code included in images photographed from a forklift belongs to which of a fork code, a floor code and a load code, and determines the working state of the forklift by using at least one of ID of the fork code, ID of the floor code and ID of the lode code included in the generated determination information.SELECTED DRAWING: Figure 3

Description

  The present disclosure relates to an apparatus, a method, and a computer program for managing forklift work in a warehouse.

  In order to improve the efficiency of work such as loading and unloading of luggage in a warehouse, it is necessary to grasp the status of the work. A method of using a forklift for carrying a load is known for grasping the work situation.

  For example, Patent Document 1 discloses the following. When the forklift starts to move, the camera equipped with the forklift starts to capture and store an image, and then continues to capture and store until the movement of the pallet is completed. Confirm that the forklift has moved and moved to the location where the pallet is picked using a marker or the like. When the forklift approaches the pallet, the barcode on the front side of the pallet can be recognized, so barcode reading is started. Next, when picking the pallet, the sensor recognizes that the fork of the forklift has been lowered, and starts detecting fork height information. In the state where the pallet is being transported, the bar code reading is continued, and the height of the fork is kept high in order to transport the pallet. When arriving at the place where the pallet is set, the fork is lowered to recognize the arrival at the predetermined place by a marker or the like and set the pallet. When the pallet is set and the forklift moves away from the pallet, the barcode of the pallet cannot be read. When a marker or the like is detected after setting the pallet, the series of operations ends, and the forklift transmits the stored information to the pallet management apparatus. Thus, the image taken while the forklift is transporting the pallet and the barcode of the pallet are stored in the management device, so that the management device can grasp the position where the pallet was last set.

Japanese Patent Laying-Open No. 2015-84139

  However, in the above-mentioned Patent Document 1, it is necessary to provide the forklift with a sensor for detecting the height information of the fork, and to provide a marker detection unit and a memory for storing the captured image in the camera. Invite.

  An object of the present disclosure is to provide a work management apparatus, a method, and a computer program that can manage the work of a forklift in a warehouse at a low cost.

  A work management apparatus according to an aspect of the present disclosure is a work management apparatus that manages work of a forklift, and each fork included in an image photographed from the forklift is attached to a fork of the forklift A code determination unit for determining whether the code is a code, a floor code affixed to a floor surface, or a luggage code affixed to a package; and the fork code, the floor code, and the luggage code A working state determination unit that determines the working state of the forklift using at least one of them.

  Note that these comprehensive or specific aspects may be realized by an apparatus, a method, an integrated circuit, a computer program, or a recording medium. Any of the system, the apparatus, the method, the integrated circuit, the computer program, and the recording medium may be used. It may be realized by various combinations.

  According to the present disclosure, work in a warehouse can be managed at a relatively low cost.

The figure which shows an example of the forklift with which the camera apparatus which concerns on this Embodiment is installed The figure which shows an example of the camera image image | photographed from the camera apparatus. The figure which shows an example of a structure of the work management system which concerns on this Embodiment The figure which shows the modification of a structure of the work management system which concerns on this Embodiment The figure which shows an example of the movement and operation of a forklift in a warehouse The figure which shows an example of the relationship between the working state of a forklift and the detection of a printing code The figure which shows an example of judgment result information Diagram showing an example of the work management screen 1 is a block diagram illustrating an example of a hardware configuration of a work management device according to the present disclosure

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings as appropriate. However, more detailed description than necessary may be omitted. For example, detailed descriptions of already well-known matters and repeated descriptions for substantially the same configuration may be omitted. This is to avoid the following description from becoming unnecessarily redundant and to facilitate understanding by those skilled in the art.

  The accompanying drawings and the following description are provided to enable those skilled in the art to fully understand the present disclosure, and are not intended to limit the subject matter described in the claims.

<Outline of the present embodiment>
First, an outline according to the present embodiment will be described with reference to FIGS. 1 and 2.

  As shown in FIG. 1, the forklift 1 is provided with at least one camera device 20a. As shown in FIG. 2, the camera device 20 a includes a print code (hereinafter referred to as “fork code”) 12 attached to the fork 2 and a print code (hereinafter referred to as “floor code”) attached to the floor surface 3. ) 13 and a print code (hereinafter referred to as “package code”) 14 attached to the package 4 are installed at positions where imaging can be performed. That is, the camera device 20a is installed at a position on the forklift 1 where an image as shown in FIG. 2 can be taken. Hereinafter, an image photographed by the camera device 20a is referred to as a camera image 100.

  If it is difficult to fit these three print codes 12, 13, and 14 within the angle of view of one camera device 20a, two camera devices with different shooting directions are installed as shown in FIG. The photographing of the three print codes 12, 13, and 14 may be shared. For example, one camera device 20a may be installed at a position and an angle where the fork cord 12 and the floor cord 13 can be photographed, and another camera device 20b may be installed at a position and an angle where the luggage code 14 can be photographed. .

  The print codes 12, 13, and 14 are, for example, a three-dimensional code (QR code (registered trademark)) or a two-dimensional code (bar code) printed on paper. Note that the amount of information included in the print code, the recognition rate, and the error correction level may differ depending on the object to be pasted. For example, since the fork code 12 is affixed to the fork 2 which is a relatively small area, the fork code 12 may be a QR code having a relatively high recognition rate (and a correspondingly small amount of information). Further, since the floor code 13 is affixed to the floor surface 3 that is relatively dirty, it may be a QR code having a relatively high error correction level. The package code 14 may be a QR code having a relatively large amount of information because the number of packages is large. Note that the print codes 12, 13, and 14 are not limited to this, and may be, for example, numbers printed on paper, characters, or combinations thereof.

  The fork cord 12 is attached to the tip of the fork 2 of the forklift 1. Thereby, the camera device 20a can photograph the fork cord 12 when the fork 2 is not inserted into the pallet 5, and cannot photograph the fork cord 12 when the fork 2 is inserted into the pallet 5. Therefore, it is determined whether or not the pallet 5 (package 4) is placed on the fork 2 or is placed on the fork 2 depending on whether or not the fork code 12 is included in the camera image 100. it can.

  When managing a plurality of forklifts 1, the fork cords 12 attached to different forklifts 1 may have different IDs. Thereby, a plurality of forklifts 1 can be identified using the ID of the fork code 12.

  The floor cord 13 is affixed to a plurality of different locations on the floor 3 of the warehouse. Moreover, the floor cords 13 attached to different places have different IDs. Accordingly, the floor codes 13 having different IDs are included in the plurality of camera images 100 captured by the camera device 20a at predetermined time intervals while the forklift 1 is moving. The plurality of camera images 100 captured by the camera device 20a at predetermined time intervals while the forklift 1 is stopped include a floor code 13 having a common ID. Therefore, whether the forklift 1 is moving depending on whether the floor codes 13 with different IDs or the floor codes 13 with common IDs are included in the plurality of camera images 100 taken at predetermined time intervals. Or it can be determined whether it is stopped.

  Furthermore, the position of the forklift 1 is specified from the ID of the floor code 13 included in the camera image 100 by managing the ID of the floor code 13 and the location where the floor code 13 is pasted in advance in association with each other. it can. Further, by arranging the IDs of the floor codes 13 extracted from the plurality of camera images 100 in the order of the photographing times of the camera images 100, the moving path of the forklift 1 can be specified.

  The luggage code 14 is affixed to the front surface of the luggage 4 (the surface facing when the forklift 1 loads the luggage). The package code 14 has a different ID for each package 4. Thereby, when the forklift 1 loads, transports, and unloads the luggage 4, the camera device 20a can photograph the luggage code 14. Therefore, the forklift 1 can be obtained from the ID of the baggage code 14 included in the camera image 100 by managing the ID of the baggage code 14 and information related to the baggage 4 (hereinafter referred to as “baggage information”) in advance. Can identify packages being loaded, transported and unloaded.

  The package information may include the weight of the package 4 and the type, name, and number of the products packed in the package 4. Furthermore, when the product packed in the package 4 is food, the package information may include the expiration date of the food.

<System configuration example>
Next, a configuration example of the work management system 10 according to the present embodiment will be described with reference to FIG.

  The work management system 10 includes a camera device 20a and a work management device 30. The camera device 20a and the work management device 30 are connected by wireless communication. Examples of wireless communication are WiFi (registered trademark), Bluetooth (registered trademark), LTE, or 5G. However, the camera device 20a and the work management device 30 may be connected by wired communication.

  First, the camera device 20a will be described. The camera device 20 a includes an imaging unit 21, a code detection unit 22, and a transmission unit 23.

  The imaging unit 21 captures the camera image 100 at a predetermined time interval. The format of the camera image 100 is, for example, JPEG or JPEG2000. The camera image 100 captured by the imaging unit 21 is, for example, H.264. H.264 or H.264 It may be a moving image such as H.265.

  The code detection unit 22 detects the ID of the print code from the camera image 100 captured by the imaging unit 21. When a plurality of print codes are included in one camera image 100, the code detection unit 22 detects the IDs of all these print codes. The code detection unit 22 does not need to detect anything when no print code is included in one camera image 100.

  The transmission unit 23 associates the photographing time of the camera image 100 with the ID of the print code detected by the code detection unit 22, and transmits the association to the work management apparatus 30 via wireless communication. If nothing is detected by the code detection unit 22, the transmission unit 23 may transmit only the shooting time of the camera image 100. Hereinafter, information that is associated with the shooting time and the ID of the print code and is transmitted from the transmission unit 23 is referred to as “detection information”.

  According to the above configuration, the camera device 20a can transmit the photographing time and the ID of the print code included in the camera image 100 photographed at the photographing time to the work management device 30 at predetermined time intervals.

  Next, the work management apparatus 30 will be described. The work management device 30 includes a receiving unit 31, a code determination unit 32, a work state determination unit 33, a position specification unit 34, a package specification unit 35, and a screen generation unit 36. These elements 31 to 36 may be a computer program executed by the CPU 2103 (see FIG. 9) provided in the work management apparatus 30.

  The receiving unit 31 receives detection information from the camera device 20a via wireless communication (or wired communication).

  The code determination unit 32 determines whether the ID of each print code included in the detection information received by the reception unit 31 belongs to the fork code 12, the floor code 13, or the package code 14. It should be noted that which ID belongs to may be defined in advance based on a predetermined condition. For example, an ID starting from “A” may be defined as a fork code 12, an ID starting from “B” as a floor code 13, and an ID starting from “C” as a package code 14. The code determination unit 32 registers the shooting time included in the detection information and the determination result in the determination result information 110 in association with each other. The determination result information 110 may be held in the RAM 2105 and / or the storage device 2106 (see FIG. 9) included in the work management apparatus. Details of the determination result information 110 will be described later (see FIG. 7).

  The work state determination unit 33 determines the work state of the forklift 1 using the ID of the fork code 12, the ID of the floor code 13, and / or the ID of the luggage code 14 included in the determination result information 110. The working state of the forklift 1 is, for example, when the pallet 5 (cargo 4) is not placed on the fork 2 while it is stopped (hereinafter simply referred to as “moving”), and the pallet 5 (cargo 4) is placed on the fork 2. During loading, the pallet 5 (cargo 4) is placed on the fork 2 and moving (hereinafter referred to as “transporting”), and the pallet 5 (cargo 4) is being unloaded from the fork 2. A method for determining the working state will be described later.

  The position specifying unit 34 specifies the position and movement path of the forklift 1 using the ID of the floor code 13 registered in association with each photographing time in the determination result information 110.

  The baggage specifying unit 35 uses the ID of the baggage code 14 registered in the determination result information 110 to specify the baggage information of the baggage that the forklift 1 is loading, transporting, or unloading.

  The screen generation unit 36 determines the work state of the forklift 1 by the work state determination unit 33, the result of specifying the position of the forklift 1 by the position specifying unit 34, and the specification of the load on which the forklift 1 is working by the load specifying unit 35. Based on the result, a work management screen is generated and displayed. Details of the screen generator 36 will be described later (see FIG. 8).

  According to the above configuration, the work management device 30 can specify the work state, position, and movement path of the forklift 1, and the work management device 30 can load the forklift 1 being loaded, transported, or unloaded. 4 can be specified.

<Modification of system configuration>
In FIG. 3, the code detection unit 22 provided in the camera device 20a may be provided on the work management device 30 side as shown in FIG. In this case, the code detection unit 22 may be a computer program executed by the CPU 2103 (see FIG. 9) provided in the work management device 30.

  In this case, in the camera device 20a, the transmission unit 23 transmits the camera image 100 captured by the imaging unit 21 at a predetermined time interval to the work management device 30 via wireless communication.

  In the work management apparatus 30, the reception unit 31 receives the camera image 100 via wireless communication, and the code detection unit 22 receives the ID of the print code from the camera image 100 as in the case of FIG. 3. To detect.

  In the case of the system configuration of FIG. 3, the amount of detection information transmitted from the camera device 20a is relatively small, so that wireless traffic can be suppressed. On the other hand, in the case of the system configuration of FIG. 4, since it is not necessary to mount the code detection unit 22 in the camera device 20a, the manufacturing cost and processing load of the camera device 20a can be suppressed.

  3 and 4, the camera device 20a may transmit the camera image 100 to the work management device 30, and the work management device 30 may record the received camera image 100.

<Determination of work status>
Next, a method for determining the working state of the forklift 1 will be described with reference to FIGS. 5, 6, and 7. FIG. 5 is a diagram illustrating an example of movement and work of the forklift 1 in a warehouse. FIG. 6 is a diagram for explaining how each print code is detected when the forklift 1 performs the movement and work shown in FIG. FIG. 7 is an example of the determination result information 110 generated when the forklift 1 performs the movement and work shown in FIG.

<Judgment result information>
First, the configuration of the determination result information 110 will be described with reference to FIG.

  The determination result information 110 includes an item in which shooting time is registered (hereinafter referred to as “shooting time item”), an item in which ID of the fork code 12 is registered (hereinafter referred to as “fork ID item”), and an ID of the floor code 13. Is registered (hereinafter referred to as “floor ID item”) and an item for registering the ID of the package code 14 (hereinafter referred to as “package ID item”).

  In the case of the system configuration of FIG. 3, the shooting time included in the detection information transmitted from the camera device 20a is registered in the shooting time item. In the case of the system configuration of FIG. 4, the shooting time of the camera image 100 transmitted from the camera device 20a is registered in the shooting time item.

  In the fork ID item, an ID determined as the fork code 12 by the code determination unit 32 is registered. In the floor ID item, an ID determined as the floor code 13 by the code determination unit 32 is registered. In the package ID item, an ID determined as the package code 14 by the code determination unit 32 is registered.

<< Information registered in judgment result information during movement >>
Next, as shown in FIGS. 5 and 6, the forklift 1 does not place a load on the fork 2 during the period from the time “10:00:00” to the time “10:05:00”, and passes the route R1. An example of information registered in the determination result information 110 when moved is described.

  For example, at the time “10:00:00” when the forklift 1 corresponding to the ID “A10” of the fork code 12 passes the position of the ID “B101” of the floor code 13, the camera device 20 a takes the camera image 100. In this case, the detection information includes the following information. That is, since no load is placed on the fork 2, the detection information includes the shooting time “10:00: 00” of the camera image 100 and the IDs “A10” and “ B101 ".

  In this case, based on the received detection information, the code determination unit 32 of the work management apparatus 30 registers “10:00: 00” in the shooting time item as shown in the row 401 of FIG. 7, and the ID “A10”. Is determined as the fork code 12 and registered in the fork ID item, the ID “B101” is determined as the floor code 13 and registered in the floor ID item, and nothing is registered in the package ID item.

  For example, at the time “10:01:00” when the forklift 1 corresponding to the ID “A10” of the fork code 12 passes the position of the ID “B102” of the floor code 13, the camera device 20 a takes the camera image 100. In this case, the detection information includes the following information. That is, since no load is placed on the fork 2, the detection information includes the shooting time “10:01:00” of the camera image 100 and the IDs “A10” and “A” detected from the camera image 100. B102 ".

  In this case, the code determination unit 32 of the work management apparatus 30 registers “10:01:00” in the shooting time item based on the received detection information, and the ID “A10” as illustrated in the row 402 of FIG. Is determined as the fork code 12 and registered in the fork ID item, the ID “B102” is determined as the floor code 13 and registered in the floor ID item, and nothing is registered in the package ID item.

  The same applies when the forklift 1 corresponding to the ID “A10” of the fork cord 12 passes the positions of the IDs “B103” and “B104” of the floor cord 13.

<< Information registered in judgment result information during loading >>
Next, as shown in FIG. 5 and FIG. 6, the forklift 1 corresponding to the ID “A10” of the fork code 12 is in the period and position from the time “10:05:00” to the time “10:10:00”. An example of information registered in the determination result information 100 when the package G is loaded in R2 will be described.

  For example, when the camera device 20a captures the camera image 100 at the time “10:05:00” when the forklift 1 corresponding to the ID “A10” of the fork code 12 starts loading at the position R2, the detection information includes The following information is included: That is, since the luggage G is not yet placed on the fork 2, the detection information includes the shooting time “10:05:00” of the camera image 100 and the ID “A10” detected from the camera image 100. And “B104”.

  In this case, based on the received detection information, the code determination unit 32 of the work management apparatus 30 registers “10:05:00” in the shooting time item as shown in the row 403 in FIG. 7, and the ID “A10”. Is determined as the fork code 12 and registered in the fork ID item, the ID “B104” is determined as the floor code 13 and registered in the floor ID item, and nothing is registered in the package ID item.

  For example, when the camera device 20a captures the camera image 100 at a time “10:06:00” a little after the start of the stacking operation, the detection information includes the following information. That is, since the luggage G has already been placed on the fork 2, the detection information includes the shooting time “10:06:00” of the camera image 100 and the ID “B104” detected from the camera image 100. And “C1000”.

  In this case, based on the received detection information, the code determination unit 32 of the work management apparatus 30 registers “10:06:00” in the shooting time item as shown in the row 404 of FIG. No is registered, the ID “B104” is determined as the floor code 13 and registered in the floor ID item, and the ID “C1000” is determined as the package code 14 and registered in the package ID item.

<< Information registered in judgment result information during transportation >>
Next, as shown in FIGS. 5 and 6, the forklift 1 corresponding to the ID “A10” of the fork cord 12 is in the period from time “10:10:00” to time “10:15:00”. An example of information registered in the determination result information 110 when the package G is placed on 2 and moved along the route R3 will be described.

  For example, at the time “10:10:00” when the forklift 1 corresponding to the ID “A10” of the fork code 12 passes the position of the ID “B105” of the floor code 13, the camera device 20 a takes the camera image 100. In this case, the detection information includes the following information. That is, since the luggage G is placed on the fork 2, the detection information includes the shooting time “10:10:00” of the camera image 100, the ID “B105” detected from the camera image 100, and “C1000”.

  In this case, based on the received detection information, the code determination unit 32 of the work management apparatus 30 registers “10:10:00” in the shooting time item and sets the fork ID item as shown in the row 405 of FIG. No is registered, the ID “B105” is determined as the floor code 13 and registered in the floor ID item, and the ID “C1000” is determined as the package code 14 and registered in the package ID item.

  For example, when the forklift 1 corresponding to the ID “A10” of the fork code 12 passes the position of the print code ID “B106” at the time “10:11:00”, the camera device 20a captures the camera image 100. The detection information includes the following information. That is, since the luggage G is placed on the fork 2, the detection information includes the photographing time “10:11:00” of the camera image 100, the ID “B106” detected from the camera image 100, and “C1000”.

  In this case, based on the received detection information, the code determination unit 32 of the work management apparatus 30 registers “10:11:00” in the shooting time item and sets the fork ID item as shown in the row 406 in FIG. No is registered, the ID “B106” is determined as the floor code 13 and registered in the floor ID item, and the ID “C1000” is determined as the package code 14 and registered in the package ID item.

  The same applies when the forklift 1 corresponding to the ID “A10” of the fork cord 12 passes the position of the ID “B107” of the floor cord 13.

<< Information registered as judgment result information during withdrawal >>
Next, as shown in FIG. 5 and FIG. 6, the forklift 1 corresponding to the ID “A10” of the fork code 12 is in the period and position from the time “10:15:00” to the time “10:20:00”. An example of information registered in the determination result information 110 when the package G is removed in R4 will be described.

  For example, when the camera device 20a captures the camera image 100 at the time “10:15:00” when the forklift 1 corresponding to the ID “A10” of the fork code 12 starts the withdrawal at the position R4, the detection information includes The following information is included: That is, since the luggage G is still placed on the fork 2, the detection information includes the shooting time “10:15:00” of the camera image 100 and the ID “B107” detected from the camera image 100. And “C1000”.

  In this case, the code determination unit 32 of the work management apparatus 30 registers “10:15:00” in the shooting time item based on the received detection information, and sets the shooting time item in the fork ID item. No is registered, the ID “B107” is determined as the floor code 13 and registered in the floor ID item, and the ID “C1000” is determined as the package code 14 and registered in the package ID item.

  For example, when the camera device 20a captures the camera image 100 at a time “10:16:00”, which is a little after the start of withdrawal, the detection information includes the following information. That is, since the luggage G is not placed on the fork 2, the detection information includes the shooting time “10:16:00” of the camera image 100, the ID “A10” detected from the camera image 100, “B107” and “C1000” are included.

  In this case, the code determination unit 32 of the work management apparatus 30 registers “10:16:00” in the shooting time item based on the received detection information, as shown in the row 408 of FIG. 7, and the ID “A10”. Is determined as the fork code 12 and registered in the fork ID item, the ID “B104” is determined as the floor code 13 and registered in the floor ID item, and the ID “C1000” is determined as the package code 14 and stored in the package ID item. sign up.

  Thus, as shown in FIGS. 5 and 6, when the forklift 1 corresponding to the ID “A10” of the fork cord 12 moves, loads, transports and unloads, as shown in FIG. 7. Determination result information 110 is generated.

<Method of determining work status from determination result information>
Next, a method for determining the working state of the forklift 1 from the determination result information 110 will be described with reference to FIG.

  The work state determination unit 33 uses the at least one ID registered in the fork ID item, the floor ID item, and the package ID item in the determination result information 110 for a certain period, for example, as follows. 1 working state is determined.

<< Judgment method while moving >>
If a common ID is registered in the fork ID item and a different ID is registered in the floor ID item in a certain period of the determination result information 110, the work state determination unit 33 operates in the period Is determined to be “moving”.

  For example, in the case of the determination result information 110 in FIG. 7, the common ID “A10” is registered in the fork ID item and the floor ID item is registered in the period “10:00 to 10:05:00”. Since different IDs “B101” and “B102” are registered, the work state determination unit 33 determines that the work state of the period is “moving”.

  In addition, the position specifying unit 34 determines the ID of the forklift 1 corresponding to the ID “A10” registered in the fork ID item from the IDs “B101” and “B102” registered in the floor ID item of the determination result information 110. Identify travel routes.

<< Judgment method during loading >>
When the fork ID item changes from registered to unregistered and a common ID is registered in the floor ID item in a certain period of the determination result information 110, the work state determination unit 33 performs the work state of the period. Is determined to be “loading”.

  For example, in the case of the determination result information 110 in FIG. 7, the ID “A10” registered in the fork ID item changes to unregistered in the period “10:05:00 to 10:10:00” and the floor Since the common ID “B104” is registered in the ID item, the work state determination unit 33 determines that the work state of the period is “being loaded”.

  If the fork ID item changes from registered to unregistered and the package ID item changes from unregistered to registered in a certain period of the determination result information 110, the work state determining unit 33 May be determined as “loading”.

  In addition, the work state determination unit 33 changes the fork ID item from registered to unregistered in a certain period of the determination result information 110, the common ID is registered in the floor ID item, and the item of the package ID May change from unregistered to registered, the working state of the period may be determined as “loading”.

  Further, the position specifying unit 34 causes the forklift 1 corresponding to the ID “A10” registered in the fork ID item to pick up from the ID “B104” registered in the floor ID item of the determination result information 110. You may specify the position.

  In addition, the luggage identification unit 35 loads the forklift 1 corresponding to the ID “A10” registered in the fork ID item from the ID “C1000” registered in the luggage ID item of the determination result information 110. Information may be specified.

<< Judgment method during transportation >>
If the ID is not registered in the fork ID item and a different ID is registered in the floor ID item in a certain period of the determination result information 110, the work state determination unit 33 displays the work state of the period. , Judge as “Transporting”.

  For example, in the case of the determination result information 110 in FIG. 7, in the period “10:10:00 to 10:15:00”, no ID is registered in the fork ID item, and a different ID “B105” is assigned to the floor ID item. ”,“ B106 ”, and the like are registered, the work state determination unit 33 determines that the work state of the period is“ transporting ”.

  Note that the work state determination unit 33 does not register the fork ID item for a certain period of the determination result information 110, registers a different ID for the floor ID item, and uses a common ID for the package ID item. May be determined as “in transit”.

  Further, the position specifying unit 34 determines the ID of the forklift 1 corresponding to the ID “A10” registered in the fork ID item from the IDs “B105” and “B106” registered in the floor ID item of the determination result information 110. A transportation route may be specified.

  In addition, the luggage specifying unit 35 loads the luggage 4 being transported by the forklift 1 corresponding to the ID “A10” registered in the fork ID item from the ID “C1000” registered in the luggage ID item of the determination result information 110. You may specify your luggage information.

<< Judgment method during withdrawal >>
If the fork ID item changes from unregistered to registered in a certain period of the determination result information 110, and the common ID is registered in the floor ID item, the work state determination unit 33 performs the work state of the period. Is determined to be “withdrawing”.

  For example, in the case of the determination result information 110 in FIG. 7, the fork ID item changes from unregistered to registered with the ID “A10” in the period “10:15:00 to 10:20:00”, and the floor ID item Since the common ID “B107” is registered, the work state determination unit 33 determines that the work state of the period is “withdrawing”.

  If the fork ID item changes from unregistered to registered and the package ID item changes from registered to unregistered in a certain period of the determination result information 110, the work state determining unit 33 It may be determined that the work state is “withdrawing”.

  Alternatively, the work state determination unit 33 changes the fork ID item from unregistered to registered in a certain period of the determination result information 110, the common ID is registered in the floor ID item, and the package ID item is When the status changes from registered to unregistered, the work state in the period may be determined as “withdrawing”.

  Further, the position specifying unit 34 removes the forklift 1 corresponding to the ID “A10” registered in the fork ID item from the ID “B107” registered in the floor ID item of the determination result information 110. You may specify the position.

  Further, the luggage specifying unit 35 removes the luggage that the forklift 1 corresponding to the ID “A10” registered in the fork ID item from the ID “C1000” registered in the luggage ID item of the determination result information 110 is taking off. Four pieces of package information may be specified.

<Work management screen>
Next, an example of a work management screen will be described with reference to FIG.

  For example, as illustrated in FIG. 8, the screen generation unit 36 superimposes a forklift icon on the position of each forklift 1 specified by the position specifying unit 34 on the image obtained by overlooking the warehouse from above. Is generated and displayed. Thereby, the work manager can easily grasp the position where each forklift 1 exists in the warehouse from the work management screen 500.

  Further, the screen generation unit 36 displays the icons of the respective forklifts in different modes for each work state determined by the work state determination unit 33. For example, as shown in FIG. 8, the screen generation unit 36 displays the white icon 501 indicating no load for the moving forklift 1 and the gray icon 502 indicating no load for the forklift 1 being loaded. The forklift 1 being transported is displayed with a white icon 503 with luggage, and the forklift 1 being withdrawn is displayed with a gray icon 504 with luggage. Thereby, the work manager can easily grasp the work state of each forklift from the work management screen 500.

  Although not shown in FIGS. 2 and 3, the work management device 30 may have a function for transmitting an instruction from the work manager to each forklift 1 via wireless communication. Good. For example, when the work manager selects an icon of a forklift to which an instruction is to be transmitted from the work management screen 500 and speaks to a microphone, the work management apparatus 30 performs wireless communication with the forklift 1 corresponding to the selected icon. Audio data may be transmitted through the network. Thereby, the work manager can transmit an appropriate instruction to the driver of the forklift 1 while grasping the position and work state of the forklift 1.

<Effects of the present embodiment>
In the present embodiment, the work management device 30 uses the fork code 12, the floor code 13, and the luggage code for the ID of each print code included in the camera image 100 photographed by the camera device 20a provided in the forklift 1. 14, the determination result information 110 is generated, and at least one of the ID of the fork code 12, the ID of the floor code 13, and the ID of the package code 14 included in the determination result information 110 is used. The working state of the forklift 1 is determined.

  According to the present embodiment, the working state of the forklift 1 can be managed only by providing the forklift 1 with the camera device 20a capable of wireless communication. Therefore, the working state of the forklift 1 in the warehouse can be managed at a relatively low cost. Moreover, according to this Embodiment, the position of the forklift 1 can be specified, and the load which the forklift 1 is working can be specified.

  The embodiment according to the present disclosure has been described above.

  The functions of the work management device 30 described above can be realized by a computer program.

  FIG. 9 is a diagram illustrating a hardware configuration of a computer that realizes the function of the work management apparatus 30 by a program. The computer 2100 includes an input device 2101 such as a keyboard or mouse, a touch pad, an output device 2102 such as a display or a speaker, a CPU (Central Processing Unit) 2103, a ROM (Read Only Memory) 2104, a RAM (Random Access Memory) 2105, A storage device 2106 such as a hard disk device or SSD (Solid State Drive), a reading device 2107 that reads information from a recording medium such as a DVD-ROM (Digital Versatile Disk Read Only Memory) or a USB (Universal Serial Bus) memory, via a network A transmission / reception device 2108 that performs communication is provided, and each unit is connected by a bus 2109.

  Then, the reading device 2107 reads the program from a recording medium on which a program for realizing the function of each device is recorded, and stores the program in the storage device 2106. Alternatively, the transmission / reception device 2108 communicates with the server device connected to the network, and stores the program for realizing the function of the work management device 30 downloaded from the server device in the storage device 2106.

  Then, the CPU 2103 copies the program stored in the storage device 2106 to the RAM 2105, and sequentially reads out and executes instructions included in the program from the RAM 2105, thereby realizing the function of the work management device 30.

  Each functional block used in the description of the above embodiment is typically realized as an LSI which is an integrated circuit. These may be individually made into one chip, or may be made into one chip so as to include a part or all of them. The name used here is LSI, but it may also be called IC, system LSI, super LSI, or ultra LSI depending on the degree of integration.

  Further, the method of circuit integration is not limited to LSI's, and implementation using dedicated circuitry or general purpose processors is also possible. An FPGA (Field Programmable Gate Array) that can be programmed after manufacturing the LSI or a reconfigurable processor that can reconfigure the connection and setting of circuit cells inside the LSI may be used.

  Furthermore, if integrated circuit technology comes out to replace LSI's as a result of the advancement of semiconductor technology or a derivative other technology, it is naturally also possible to carry out function block integration using this technology. Biotechnology can be applied.

  In the present disclosure, the camera device 20a and the work management device 30 have been described as separate devices, but the work management device 30 and the camera device 20a may be an integrated device. For example, the camera device 20a may be configured to have each function of the work management device 30 described above.

  The present disclosure is useful for managing work in a warehouse.

DESCRIPTION OF SYMBOLS 1 Forklift 2 Fork 10 Work management system 12 Fork code 13 Floor code 14 Luggage code 20a, 20b Camera apparatus 21 Imaging part 22 Code detection part 23 Transmission part 30 Work management apparatus 31 Reception part 32 Code determination part 33 Work state determination part 34 Position Identification part 35 Package identification part 36 Screen generation part 100 Camera image 110 Determination result information

A work management apparatus according to an aspect of the present disclosure is a work management apparatus that manages work of a forklift, and each code image included in an image taken from the forklift is attached to a fork of the forklift. using the determined code judging unit which one of the floor code pasted on the fork code and the floor, the fork code and the floor code that is determined by the code determination section, of the forklift A work state determination unit that determines the work state.

The print codes 12, 13, and 14 are, for example, a two- dimensional code (QR code (registered trademark)) printed on a paper surface or a one- dimensional code (bar code). Note that the amount of information included in the print code, the recognition rate, and the error correction level may differ depending on the object to be pasted. For example, since the fork code 12 is affixed to the fork 2 which is a relatively small area, the fork code 12 may be a QR code having a relatively high recognition rate (and a correspondingly small amount of information). Further, since the floor code 13 is affixed to the floor surface 3 that is relatively dirty, it may be a QR code having a relatively high error correction level. The package code 14 may be a QR code having a relatively large amount of information because the number of packages is large. Note that the print codes 12, 13, and 14 are not limited to this, and may be, for example, numbers printed on paper, characters, or combinations thereof.

Claims (10)

A work management device for managing the work of a forklift,
For each code included in the image photographed from the forklift, a fork code affixed to the fork of the forklift, a floor code affixed to the floor, and a luggage code affixed to the luggage A code determination unit for determining which is,
Using at least one of the fork cord, the floor cord, and the luggage code, a working state determination unit that determines a working state of the forklift;
A work management apparatus comprising: The code determination unit associates the determination result with the shooting time of the image,
The work state determination unit uses at least one of the fork cord, the floor cord, and the luggage code associated with each of a plurality of shooting times within a certain period, Determining the working state of the forklift;
The work management apparatus according to claim 1. When the fork code is associated with a plurality of shooting times within the period and the floor code is associated with at least two different floor codes, the working state determination unit Determining that the working state is moving without carrying a load,
The work management apparatus according to claim 2. The working state determination unit is associated with a plurality of photographing times within the period until the middle photographing time, and the fork code is not associated with the photographing time after the middle, And, when the common floor code is associated, the working state of the forklift in the period is determined as a state during loading,
The work management apparatus according to claim 2. When the fork code is not associated with a plurality of photographing times within the period and at least two different floor codes are associated with the work state determination unit, the forklift in the period The working state of
The work management apparatus according to claim 2. The work state determination unit is not associated with a plurality of photographing times within the period until the middle photographing time, and the fork code is associated with the photographing time after the middle, And, when the common floor code is associated, the working state of the forklift in the period is determined as a state of being withdrawn.
The work management apparatus according to claim 2. A baggage specifying unit that specifies a baggage in operation using the baggage code associated with at least one shooting time within the period;
The work management apparatus according to claim 2. A position specifying unit for specifying at least one of the position of the forklift and the movement path using the floor code associated with a plurality of shooting times within the period;
The work management apparatus according to claim 2. A work management method for managing work of a forklift, wherein for each code image included in an image photographed from the forklift, a fork code attached to a fork of the forklift, a floor code attached to a floor surface , And determine which of the package codes affixed to the package,
Using at least one of the fork cord, the floor cord, and the luggage code to determine a working state of the forklift;
Work management method. A computer program for managing the work of a forklift,
For each code image included in the image photographed from the forklift, the fork code affixed to the fork of the forklift, the floor code affixed to the floor, and the luggage code affixed to the luggage To determine which one is
Using at least one of the fork cord, the floor cord, and the luggage code to determine a working state of the forklift;
Let the computer do that,
Computer program.

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