Loading rate calculation system

Abstract

To provide a loading rate calculation system that can easily and accurately measure the loading rate of luggage placed on a loading platform and contribute to efficient transportation of luggage. [Solution] The loading rate management device 20 in the loading rate calculation system 1 detects the area of ​​the loading rate platform 1, the area of ​​the luggage 2, and the area of ​​the pallet 3 from image information containing images of the loading rate platform 1, the area of ​​the luggage 2, and the area of ​​the pallet 3, and calculates the proportion of the area of ​​the loading rate platform 1 that is occupied by the luggage 2, thereby calculating the loading rate of the luggage 2 on the loading rate platform 1, recording the time the truck enters and leaves the truck berth, and recording the temporal fluctuation in the loading rate of the luggage 2 from the time of entry to the time of departure.

Description

[Technical Field]

[0001] The present invention relates to a luggage loading rate calculation technique for calculating the loading rate of luggage loaded on a loading platform. [Background technology]

[0002] Conventionally, methods for calculating the load factor of a vehicle equipped with a loading platform have been proposed for the purpose of efficient cargo transportation. Recently, with the reduction in working hours of vehicle drivers, it is expected that the number of vehicles capable of transporting cargo will decrease, and further improvement of the load factor is required. Therefore, a technology that can accurately grasp the load factor is desired.

[0003] For example, Patent Document 1 proposes a loading rate estimation device that estimates the loading rate of luggage in a trunk of a vehicle using a camera installed inside or outside the trunk. The loading rate of luggage in the trunk of a vehicle can be accurately estimated by detecting objects other than people and luggage using a camera installed inside or outside the trunk. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2022-148169 Summary of the Invention [Problem to be solved by the invention]

[0005] Here, the above-described technology for estimating the load factor of luggage in a vehicle's luggage compartment using cameras installed inside or outside the luggage compartment requires installing multiple cameras on the vehicle transporting the luggage in addition to the berth where the load factor is estimated, which results in a problem of a complex device configuration for estimating the load factor.There is a demand for technology that can easily and accurately measure the load factor of luggage in a vehicle transporting luggage, thereby contributing to the efficient transportation of luggage.

[0006] The present invention has been made to solve the above problems, and aims to provide a loading rate calculation system that can easily and accurately measure the loading rate of luggage placed on a loading platform, thereby contributing to the efficient transportation of luggage. [Means for solving the problem]

[0007] In order to solve the above-described problems, the loading rate calculation system of the present invention is a loading rate calculation system for calculating a loading rate of a cargo loaded on a bed of a truck, the loading rate calculation system comprising: The loading rate calculation device is provided with an imaging device that is installed at a predetermined position on the truck berth and that acquires image information including an image of the truck, an entry / exit detection unit that detects the entry and exit of the truck into the truck berth based on the image information, a loading platform detection unit that detects the area of ​​the loading platform from the image information, a luggage detection unit that detects the area of ​​the luggage from the image information, and a loading rate calculation unit that calculates the loading rate of the luggage on the loading platform, wherein the entry / exit detection unit records the entry time and exit time of the truck into the truck berth, and the loading rate calculation unit records the temporal fluctuations in the loading rate from the entry time to the exit time. [Effects of the Invention]

[0008] According to the present invention, it is possible to provide a loading ratio management device that can easily and accurately measure the loading ratio of luggage placed on a loading platform and contribute to efficient transportation of luggage. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 shows an example of a system configuration including a loading ratio management device according to an embodiment of the present invention. [Figure 2] FIG. 2 is an example of a functional block diagram of the loading ratio management device according to the embodiment of the present invention. [Figure 3] FIG. 3 is a diagram for explaining an example of calculation of the cargo loading rate in the embodiment of the present invention. [Figure 4]FIG. 4 is a diagram for explaining detected images of the loading platform area and the luggage area in the embodiment of the present invention. [Figure 5] FIG. 5 is a diagram illustrating a detected image of the palette area in the embodiment of the present invention. [Figure 6] FIG. 6 is a diagram for explaining a detected image of a luggage area for each pallet in the embodiment of the present invention. [Figure 7] FIG. 7 is a diagram for explaining the calculation result of the loading rate in the embodiment of the present invention. [Figure 8] FIG. 8 is a diagram for explaining the calculation result of the loading ratio in the embodiment of the present invention. [Figure 9] FIG. 9 shows an example of an operation flow of the loading rate calculation method according to the embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention can be embodied in various embodiments and is not limited to the embodiments of the invention described below.

[0011] <Configuration of the luggage loading ratio calculation system> Fig. 1 shows an example of a system configuration including a loading ratio management device according to an embodiment of the present invention. The loading ratio management system shown in Fig. 1 includes a fixed camera 10 installed on a truck berth that captures image information of the loading ratio 1 and the luggage 2 placed on the pallet 3, and a loading ratio management device 20 that calculates the loading ratio of the luggage 2 on the loading ratio 1 using the captured image information.

[0012] In this embodiment, a fixed camera 10 installed on a truck berth is used to capture an image of a loading platform 1 loaded with pallets 3 on which cargo 2 is placed, with the left and right wings of a transport vehicle (wing vehicle) open, and the loading rate of the cargo 2 and pallets 3 on the loading platform 1 is calculated using the detection results of the area of ​​the loading platform 1, the cargo 2, and the pallets 3 in the captured image information. The loading rate of the cargo 2 and the pallets 3 can be calculated using the proportion of the area of ​​the cargo 2 and the pallets 3 in the acquired area of ​​the loading platform 1. In the following explanation, the proportion of the area of ​​the cargo 2 and the pallets 3 in the area of ​​the loading platform 1 may be referred to as the loading rate of the cargo 2.

[0013] In the loading ratio management device 20 of this embodiment, it is possible to easily and accurately measure the loading ratio of the luggage 2 loaded on the loading platform 1 using image information acquired by a fixed camera 10 installed on the truck berth.

[0014] The loading rate management device 20 in this embodiment calculates the loading rate of the luggage 2 on the loading platform 1, and records changes over time in the luggage 2 loaded on the loading platform 1. By understanding the changes over time in the loading rate of the luggage 2 in addition to the loading rate on the loading platform 1, it is possible to visualize the work time and work efficiency of loading and unloading, which can contribute to improving the efficiency of the loading and unloading work preparation process in a warehouse, the placement position of luggage, etc.

[0015] Furthermore, by configuring the system to grasp the loading rate of each piece of luggage 2 for each pallet in addition to the overall loading rate on the loading platform 1, it becomes possible to improve the efficiency of the entire luggage transportation work by changing the transport vehicle that transports the luggage for each piece of luggage placed on the pallet 3, reloading the luggage, changing the transportation route, reducing the number of trips, etc. According to this embodiment, it is possible to provide a loading rate management device that can improve the loading efficiency of luggage and contribute to the efficient transportation of luggage.

[0016] <Configuration of the loading rate management device> 2 shows an example of functional blocks of a loading rate management device according to an embodiment of the present invention. The loading rate management device 20 includes a central processing unit 21 that calculates the loading rate of the cargo 2 and pallets 3 on the loading rate management device 1 using the detection results of the areas of the loading platform 1, the cargo 2, and the pallets 3 in image information acquired by a fixed camera 10 installed on a truck berth, a memory unit 22 for storing various information such as the captured image information and the calculated loading rate, an input unit 23 for inputting information to the loading rate management device 20, a display unit 24 for displaying the calculation status of the cargo loading rate, and a wireless unit 25 for transmitting and receiving information to and from the fixed camera 10. The detection of the areas of the pallets 3 is used to calculate the loading rate of the cargo 2 for each pallet.

[0017] The central processing unit 21 functions as a loading platform detection unit 21-1 that detects the area of ​​the loading platform 1 from image information acquired by a fixed camera 10 installed on the truck berth, a luggage detection unit 21-2 that detects the area of ​​the luggage 2 on the loading platform 1 from image information acquired by the fixed camera 10, a pallet detection unit 21-3 that detects the area of ​​the pallet 3 on the loading platform 1 from image information acquired by the fixed camera 10, and a loading rate calculation unit 21-4 that calculates the loading rate of the luggage 2 and pallet 3 on the loading platform 1 using the detection results of the area of ​​the loading platform 1, the area of ​​the luggage 2 and the area of ​​the pallet 3 in the image information.

[0018] The luggage detection unit 21-2 and the pallet detection unit 21-3 detect the area of ​​luggage 2 and the area of ​​pallet 3, respectively, by comparing the image information acquired by the fixed camera 10 with the image information of luggage 2 and the image information of pallet 3 that have been stored in advance.

[0019] The memory unit 22 stores the acquired image information of the loading platform 1, the luggage 2, and the pallet 3, as well as the calculated information on the loading rate of the luggage 2 and the pallet 3 on the loading platform 1. The memory unit 22 also stores image information of the luggage 2 and the pallet 3 in advance, and uses this information to detect the areas of the luggage 2 and the pallet 3 from the image of the loading platform 1 acquired by the fixed camera 10.

[0020] For example, the area of ​​the luggage 2 or pallet 3 can be detected by checking whether or not features such as shape and color match between pre-stored image information of the luggage 2 or pallet 3 and image information of the loading platform 1 acquired by the fixed camera 10.

[0021] A general-purpose RGB camera can be used as the fixed camera 10, but it has a function of controlling zooming in and out, etc., according to a control signal transmitted from the loading ratio management device 20. The loading ratio management device 20 can be configured by a computer equipped with a CPU, memory, and an interface for connecting to external devices.

[0022] <Calculating the cargo loading rate on the loading platform> Fig. 3 is a diagram for explaining an example of calculation of the load factor of a load in an embodiment of the present invention. In the example of Fig. 3, the platform 1 of the transport vehicle has a structure divided into two sections, left and right, and each of the left and right sections has a depth equivalent to that of one pallet.

[0023] In the case of a transport vehicle platform 1 having a structure divided into two sections, left and right, as shown in Figure 3, it is possible to grasp the loading rate of the entire platform by calculating the loading rate using images acquired from the outside of each of the left and right platforms.

[0024] <Detection of loading platform area and luggage area> FIG. 4 is a diagram for explaining detected images of the loading platform area and the luggage area in the embodiment of the present invention.

[0025] The loading ratio management device 20's loading platform detection unit 21-1 detects the area of ​​the loading platform 1 from the image information acquired by the fixed camera 10. Specifically, the loading platform detection unit 21-1 detects the area of ​​the loading platform 1 by comparing the image information acquired by the fixed camera 10 with image information of the loading platform 1 that has been stored in advance.

[0026] The luggage detection unit 21-2 of the loading ratio management device 20 detects the area of ​​the luggage 2 from the image information acquired by the fixed camera 10. Specifically, the luggage detection unit 21-2 detects the area of ​​the luggage 2 by comparing the image information acquired by the fixed camera 10 with image information of the luggage 2 stored in advance.

[0027] Image information of the loading platform 1 and luggage 2 is stored in advance in the memory unit 22, and this information is used to detect the area of ​​luggage 2 and the area of ​​luggage 2 from the image of the loading platform 1 acquired by the fixed camera 10. The areas of the loading platform 1 and luggage 2 can be detected based on whether features such as shape and color match between the pre-stored image information of the loading platform 1 and luggage 2 and the image information of the loading platform 1 and luggage 2 acquired by the fixed camera 10. The pre-stored image information of the luggage 2 and luggage 2 can be formed by learning the images of the loading platform 1 and luggage 2.

[0028] In the example of the detection result in Figure 4, area 4 of loading platform 1 and area 5 of luggage 2 on loading platform 1 are detected. In the example in Figure 4, area 5 of luggage 2 includes pallet 3, and area 5 of luggage 2 is detected as a single area. By calculating the proportion of area 5 of luggage 2 in area 4 of loading platform 1, the loading rate of luggage 2 on loading platform 1 can be calculated.

[0029] <Palette area detection> FIG. 5 is a diagram illustrating a detected image of the palette area in the embodiment of the present invention.

[0030] The pallet detection unit 21-3 of the loading ratio management device 20 detects the area of ​​the pallet 3 from the image information acquired by the fixed camera 10. Specifically, the pallet detection unit 21-3 detects the area of ​​the pallet 3 by comparing the image information acquired by the fixed camera 10 with image information of the pallet 3 stored in advance.

[0031] Image information of the pallets 3 is stored in advance in the memory unit 22, and this information is used to detect the area of ​​the pallets 3 from the image of the loading platform 1 acquired by the fixed camera 10. The area of ​​the pallets 3 can be detected based on whether features such as shape and color match between the pre-stored image information of the pallets 3 and the image information acquired by the fixed camera 10. The pre-stored image information of the pallets 3 can be formed by learning the images of the pallets 3.

[0032] In the example of the detection result in Fig. 5, an area 6 of a pallet 3 on a loading platform 1 is detected. In the example in Fig. 6, an area 6 of a plurality of pallets 3 on which cargo 2 is placed is detected. The detection results of the areas 6 of these pallets 3 are used to calculate the loading rate of cargo 2 for each pallet.

[0033] <Detection of cargo area for each pallet> FIG. 6 is a diagram for explaining a detected image of a luggage area for each pallet in the embodiment of the present invention.

[0034] The luggage detection unit 21-2 of the loading ratio management device 20 uses the detection result of the area of ​​the pallet 3 detected by the pallet detection unit 21-3 to detect the area of ​​the luggage 2 for each pallet from the image information acquired by the fixed camera 10. Specifically, the luggage detection unit 21-2 detects the area of ​​the luggage 2 for each pallet by comparing the image information acquired by the fixed camera 10 with image information of the luggage 2 stored in advance.

[0035] Image information of the luggage 2 is stored in advance in the memory unit 22, and this information is used to detect the area of ​​the luggage 2 for each pallet from the image of the loading platform 1 acquired by the fixed camera 10. The area of ​​the luggage 2 can be detected based on whether or not features such as shape and color match between the pre-stored image information of the luggage 2 and the image information of the luggage 2 acquired by the fixed camera 10. The pre-stored image information of the luggage 2 can be formed by learning images of the loading platform 1 and the luggage 2.

[0036] In the example of the detection results in Figure 6, an area 7 of luggage 2 for each pallet is detected. In the example in Figure 7, the area 7 of luggage 2 includes the pallet 3, and the area 7 of luggage 2 is detected as an area including the pallet 3. By calculating the proportion of the area 7 of luggage 2 in the area 4 of the loading platform 1, the loading rate of luggage 2 for each pallet on the loading platform 1 can be calculated.

[0037] <Loading rate calculation results> Fig. 7 is a diagram for explaining the calculation result of the loading rate in the embodiment of the present invention. As explained in Fig. 3, in the case of the loading platform 1 of the wing truck having a structure divided into two sections, left and right, the loading rate of the entire loading platform can be grasped by calculating the loading rate using images acquired from the outside of each of the left and right platforms.

[0038] The loading rate management device 20 in this embodiment calculates the loading rate of the luggage 2 on the loading platform 1 and records changes over time in the loading rate of the luggage 2 loaded on the loading platform 1. By understanding the changes over time in the loading rate of the luggage 2, it is possible to visualize the work time and efficiency of loading and unloading, which can contribute to improving the efficiency of the preparation process for loading and unloading work in a warehouse and the placement position of luggage in a warehouse.

[0039] In the example of Figure 7, the loading area 4 of loading area 1 and the loading area 5 of loading area 2 are detected on each of the left and right loading areas of the winged vehicle, and the loading rate of loading area 2 is calculated from the proportion of loading area 5 of loading area 1 that is occupied by loading area 4 of loading area 1. Furthermore, the change in the loading rate over time from entry to departure is recorded. The loading rate of the left loading area of ​​the winged vehicle when leaving is 49.5%, and the loading rate of the right loading area of ​​the winged vehicle when leaving is 58.9%.

[0040] Fig. 8 is a diagram for explaining the calculation results of the loading rate in the embodiment of the present invention. In the example of the detection results in Fig. 8, the loading rate of the luggage 2 in each of the loading platforms on the left wing side and the right wing side of the wing vehicle and their total value are calculated. The loading rate of the entire wing vehicle can be calculated using the loading rates on the left wing side and the right wing side of the wing vehicle.

[0041] In the example of Fig. 8, when a truck enters a truck berth, the time of entry of the truck and the loading rate at the time of entry are recorded in association with the entered vehicle information and the truck route information. In the example of Fig. 8, the truck enters with no cargo 2 loaded on loading platform 1, and the loading rate at the time of entry is 0%.

[0042] At the truck berth, the loading and unloading of cargo 2 onto the loading platform 1 is carried out, and the temporal changes in the cargo 2 on the loading platform 1 are recorded. When the departure of a truck from the truck berth is detected, the departure time and the work time from entry to departure are recorded, and the loading rate at the time of departure is also recorded. In the example of FIG. 8, the loading rate at the time of departure is 54.2%.

[0043] 7 and 8, the entire area 5 of the luggage 2 in the area 4 of the loading platform 1 is detected to calculate the loading rate of the loading platform 1, but the loading rate of the luggage 2 on the loading platform 1 may be calculated by calculating the loading rate of the luggage 2 for each pallet and adding up the loading rates of the luggage 2 for each pallet. Also, the loading rate of the luggage 2 on the loading platform 1 can be verified using the loading rate of the luggage 2 for each pallet on the loading platform 1.

[0044] By knowing the loading rate of the cargo 2 for each pallet in addition to the overall loading rate on the loading platform 1, it becomes possible to change the transport vehicle that transports the cargo for each cargo placed on the pallet 3, reload the cargo, change the transport route, reduce the number of trips, etc., thereby improving the loading efficiency of the cargo and providing a loading rate management device that can contribute to the efficient transportation of cargo.

[0045] <Loading rate management device operation flow> The operation of the loading ratio calculation method executed in the loading ratio management device 20 will be described with reference to Fig. 9. Fig. 9 shows an example of the operation flow of the loading ratio calculation method according to the embodiment of the present invention.

[0046] The loading ratio management device 20 detects the entry of a truck into a truck berth based on image information acquired by the fixed camera 10 (S1-1). When detecting the entry into the warehouse, the loading ratio management device 20 acquires image information including images of the loading platform 1, the baggage 2, and the pallet 3 from the fixed camera 10 (S1-2).

[0047] The loading platform detection unit 21-1 of the loading ratio management device 20 extracts the area of ​​the loading platform 1 from the image information acquired by the fixed camera 10 (S1-3).

[0048] The luggage detection unit 21-2 of the loading ratio management device 20 detects the area of ​​the luggage 2 from the image information acquired by the fixed camera 10. Specifically, the area of ​​the luggage 2 is detected by comparing the image information acquired by the fixed camera 10 with image information of the luggage 2 stored in advance (S1-4).

[0049] The loading rate calculation unit 21-4 of the loading rate management device 20 calculates the loading rate of the luggage 2 on the loading rate platform 1 using the detection results of the area of ​​the loading rate platform 1 and the area of ​​the luggage 2 in the image information. Specifically, the loading rate of the luggage 2 on the loading rate platform 1 is calculated by calculating the proportion of the area of ​​the luggage 2 in the area of ​​the loading rate platform 1 (S1-5).

[0050] When the loading ratio management device 20 detects the departure of a truck from the truck berth based on the image information acquired by the fixed camera 10 (S1-6: YES), it outputs the calculation result of the loading ratio (S1-7).

[0051] The loading ratio management device 20 of this embodiment detects the area of ​​the loading platform 1, the area of ​​the luggage 2, and the area of ​​the pallet 3 from image information containing images of the loading platform 1, the luggage 2, and the pallet 3, and calculates the loading ratio of the luggage 2 on the loading platform 1 by calculating the proportion of the area of ​​the luggage 2 in the area of ​​the loading platform 1.

[0052] The loading rate management device 20 of this embodiment can visualize the loading and unloading work time and work efficiency by grasping the loading rate on the loading platform 1 as well as the change over time in the loading rate of the luggage 2, and can contribute to improving the efficiency of the loading and unloading work preparation process in the warehouse and the placement position of the luggage.

[0053] Furthermore, by grasping the loading rate of each piece of luggage 2 for each pallet in addition to the overall loading rate on the loading platform 1, it becomes possible to change the transport vehicle that transports the luggage for each piece of luggage placed on the pallet 3, reload the luggage, change the transport route, reduce the number of trips, etc., thereby improving the loading efficiency of luggage and providing a loading rate management device that can contribute to the efficient transportation of luggage. [Explanation of symbols]

[0054] 1...loading platform, 2...luggage, 3...pallet, 4...loading platform area, 5...luggage area (loading platform), 6...pallet area, 7...luggage area, 10...fixed camera, 20...loading ratio management device, 21...central processing unit, 21-1...loading platform detection unit, 21-2...luggage detection unit, 21-3...pallet detection unit, 21-4...loading ratio calculation unit, 22...memory unit, 23...input unit, 24...display unit, 25...wireless unit

Claims

1. A loading rate calculation system for calculating a loading rate of a bed of a truck for cargo placed on a pallet loaded on the bed, comprising: an imaging device that is installed at a predetermined position on the truck berth and that acquires image information including an image of the truck; an entry / exit detection unit that detects entry and exit of the truck into and from the truck berth based on the image information; a loading platform detection unit that detects the area of ​​the loading platform from the image information; a luggage detection unit that detects the area of ​​the luggage from the image information; and a loading rate calculation unit that calculates the loading rate of the luggage on the loading platform. A loading rate calculation device including: The entry / exit detection unit records the entry time and the exit time of the truck from the truck berth, The loading rate calculation unit records a temporal change in the loading rate from the entry time to the departure time. Load factor calculation system.

2. a palette detection unit that detects the palette from the image information, The luggage detection unit For each of the pallets detected by the pallet detection unit, an area of ​​the cargo placed on the pallet is detected from the image information; The loading rate calculation unit The loading rate of the cargo placed on the pallet on the loading platform is calculated for each pallet, and the loading rates calculated for each pallet are summed to calculate the loading rate of the cargo on the loading platform. The loading ratio calculation system according to claim 1 .

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