Baggage monitoring device and program

Abstract

To enable accurate detection of cargo shifting and the risk of having cargo shifting.SOLUTION: A floor of a cargo compartment of a vehicle is divided into a plurality of areas that are two-dimensionally arranged in a longitudinal and lateral directions of the vehicle, and a weight distribution of parcels in the cargo compartment is continuously measured according to measurement results of a load sensor provided in each of the areas.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a luggage monitoring device and a program. [Background technology]

[0002] Patent Document 1 discloses a truck safe driving system. This truck safe driving system includes a plurality of load sensors that detect loads disposed at least at the front-rear and left-right ends of the truck bed along the traveling direction, and a bed load measuring means that calculates the load distribution and total load of the bed from the detected load signals from the load sensors. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2001-97072 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the invention described in Patent Document 1, the load sensors are provided in only four places, and it is not possible to accurately detect the occurrence or risk of cargo collapse.

[0005] The present invention has been made in consideration of the above circumstances, and has an object to provide a luggage monitoring device and program that can accurately detect the occurrence of luggage collapse or the risk of luggage collapse. [Means for solving the problem]

[0006] A luggage monitoring device according to one embodiment of the present invention comprises a plurality of load sensors arranged at predetermined intervals on the floor surface of a luggage compartment of a vehicle, a measurement unit that continuously measures the weight distribution of luggage arranged in the luggage compartment based on the measurement results of the load sensors, and an output unit that outputs the measurement results of the measurement unit, wherein the plurality of load sensors divide the floor surface into a plurality of areas arranged two-dimensionally in the fore-aft and left-right directions of the vehicle, and one load sensor is arranged in each of the areas.

[0007] Another aspect of the present invention provides a program that causes a computer to function as a measurement unit that continuously measures the weight distribution of luggage in the luggage compartment based on the measurement results of a plurality of load sensors provided at predetermined intervals on the floor of a luggage compartment of a vehicle, dividing the floor into a plurality of areas arranged two-dimensionally in the fore-aft and left-right directions of the vehicle, and an output unit that outputs the measurement results of the measurement unit.

[0008] In any of the above aspects of the present invention, the floor surface of the luggage compartment of the vehicle is divided into a plurality of areas arranged two-dimensionally in the front-rear and left-right directions of the vehicle, and the weight distribution of the luggage placed in the luggage compartment is continuously measured based on the measurement results of the load sensors provided in each of the areas. This makes it possible to know the detailed weight distribution, and as a result, it is possible to accurately detect the occurrence or risk of the occurrence of the luggage collapse.

[0009] The measuring unit may detect whether or not a load has shifted based on the weight distribution, and the output unit may output information about the load shift or the risk of load shifting. This makes it possible to immediately inform a driver of the load shift or the risk of load shifting.

[0010] The measurement unit may acquire measurement results from the load sensors at regular intervals from the start of travel of the vehicle, and may detect the occurrence or risk of cargo shifting when the measurement results of two or more of the load sensors change beyond a threshold value with respect to the measurement results of the load sensors at the start of travel. This makes it possible to accurately and directly know that cargo shifting has occurred or that there is a risk of cargo shifting.

[0011] The threshold value may be different depending on the location of the area, which allows for detailed monitoring settings, such as focusing on monitoring for cargo collapse in the center of the luggage compartment.

[0012] The area may be a rectangle with each side having a length of approximately 500 mm or less, thereby making it possible to obtain a detailed and more accurate weight distribution in the luggage compartment. Effect of the Invention

[0013] According to the present invention, it is possible to accurately detect the occurrence of cargo collapse or the risk of cargo collapse. [Brief description of the drawings]

[0014] [Figure 1] 1 is a block diagram showing an example of the overall configuration of a baggage monitoring device 1 according to an embodiment of the present invention. [Diagram 2] FIG. 2 is a diagram showing a schematic arrangement of a load sensor 21. [Diagram 3] 1 is a block diagram illustrating an example of a hardware configuration of a baggage monitoring device 1. FIG. [Figure 4] 4 is a flowchart showing an example of a process flow performed by the baggage monitoring device 1. [Diagram 5] 1A and 1B are diagrams showing an example of weight distribution in a luggage compartment 32, in which (A) shows the weight distribution when a vehicle 30 starts to move, and (B) shows the weight distribution at a certain point in time after the vehicle starts to move. [Figure 6] 13 is a display example of the display device 3 when the output unit 12 outputs information on the risk of cargo collapse to the display device 3. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] Hereinafter, an embodiment of the present invention (hereinafter, referred to as "the present embodiment") will be described in detail with reference to the accompanying drawings. In the description, the same elements or elements having the same functions will be denoted by the same reference numerals, and duplicated descriptions will be omitted.

[0016] 1 is a block diagram showing an example of the overall configuration of a baggage monitoring device 1 according to this embodiment. The baggage monitoring device 1 is a device that monitors the status of baggage provided inside a baggage compartment 32 (see FIG. 3) of a vehicle 30.

[0017] The baggage monitoring device 1 mainly includes a control unit 10 having a measurement unit 11 and an output unit 12, and a load sensor 21. The baggage monitoring device 1 is configured to be capable of communicating with a terminal device 2, a display device 3, etc. via a communication network such as a mobile communication network or a wireless communication network.

[0018] The measuring unit 11 continuously measures the weight distribution of the luggage placed in the luggage compartment 32 based on the measurement results of the load sensor 21, for example. The measuring unit 11 also detects the occurrence or risk of luggage collapse based on the weight distribution. The processing performed by the measuring unit 11 will be described in detail later.

[0019] The output unit 12 outputs the measurement results from the measurement unit 11. The output unit 12 also outputs information about the occurrence of cargo collapse or the possibility of cargo collapse. The output destination to which the output unit 12 outputs the information is the terminal device 2 or the display device 3.

[0020] The load sensor 21 is, for example, a strain gauge type load sensor. The load sensor 21 has a plurality of load sensors 21a1, 21a2..., 21b1, 21b2..., 21c1..., 21d1.... In the present embodiment, the load sensor 21 has 100 load sensors 21a1..., but the number of the load sensors 21a1... is not limited to this.

[0021] FIG. 2 is a diagram showing a schematic arrangement of the load sensors 21 (21a1, 21a2...). The baggage monitoring device 1 is provided in a vehicle 30, which mainly has a driver's cab 31 and a luggage compartment 32. A floor surface 33 of the luggage compartment 32 is divided into a plurality of areas 33a1, 33a2... arranged two-dimensionally in the front-rear direction (left-right direction in FIG. 2) and left-right direction (up-down direction in FIG. 2) of the vehicle 30. One load sensor 211a1, 21a2... is provided for each of the areas 33a1, 33a2.... Note that the areas 33a1, 33a2... are virtual areas, and the floor surface 33 is not actually divided.

[0022] In this embodiment, floor surface 33 has a length of 10,020 mm in the front-rear direction and a length of 2,410 mm in the left-right direction. If the size of areas 33a1, 33a2,... is approximately 500 mm square, floor surface 33 is divided into 20 areas in the front-rear direction and 5 areas in the left-right direction, for a total of 100 areas 33a1, 33a2,...

[0023] In this embodiment, the size of the regions 33a1, 33a2... is approximately 500 mm square, but the size of the regions 33a1, 33a2... is not limited to this and may be approximately 500 mm or less. Considering the size of the load sensors 21a1, 21a2..., it is preferable that the size of the regions 33a1, 33a2... is approximately 100 mm to approximately 500 mm.

[0024] Load sensors 21a1, 21a2... are provided in each of the areas 33a1, 33a2.... In this embodiment, since there are 100 areas 33a1, 33a2..., 100 load sensors 21a1, 21a2... are used. By providing the load sensors 21a1, 21a2... inside (for example, approximately at the center of) the areas 33a1, 33a2..., the load sensors 21 are provided at predetermined intervals on the floor surface 33.

[0025] Returning to the description of Fig. 1, the terminal device 2 is a computer device or an information processing device having a CPU, a memory, a storage, a communication IF (interface), etc. The terminal device 2 may be a portable information processing device such as a smartphone, a mobile phone, or a tablet terminal.

[0026] The display device 3 is, for example, a monitor provided in the driver's cab 31 (see FIG. 3) of the vehicle 30, and displays information on the occurrence of cargo collapse or the possibility of cargo collapse output from the output unit 12. Note that the display device 3 may be configured as, for example, a touch panel including a touch sensor performing an input function and a display performing a display function.

[0027] 3 is a block diagram showing an example of a hardware configuration of the baggage monitoring device 1. The baggage monitoring device 1 includes a control device 50, a communication device 52, and a storage device 54. The control device 50 mainly includes a CPU (Central Processing Unit) 56 and a memory 58.

[0028] The control device 50 functions as various functional units by the CPU 56 executing a predetermined program stored in the storage device 54, the memory 58, or the like.

[0029] The communication device 52 is configured with a communication interface for communicating with an external device, etc. The communication device 52 transmits and receives various information to and from the terminal device 2, etc.

[0030] The storage device 54 is configured with a hard disk, etc. This storage device 54 stores various programs and various information required for executing the processes in the control device 50, and information on the results of the processes.

[0031] The baggage monitoring device 1 can be realized using a dedicated or general-purpose server computer, etc. The baggage monitoring device 1 can be configured with a single server computer, etc. Even if it is a system that is distributed over a communication network, it may be composed of multiple servers, computers, etc. Also, the embodiment shown in FIG. 3 The main hardware of the baggage monitoring device 1 is The baggage monitoring device 1 is a system in which a server, computer, etc. Other configurations may be provided that are advantageously provided.

[0032] Next, an example of the flow of processing by the baggage monitoring device 1 will be described with reference to Fig. 4. Fig. 4 is a flow chart showing an example of the flow of processing by the baggage monitoring device 1. Note that the order of the following steps can be changed as appropriate.

[0033] The control unit 10 determines whether the vehicle 30 has started to run (step S10). For example, the control unit 10 may determine whether the vehicle 30 has started to run by acquiring information indicating whether the vehicle 30 has started to run from a control device (not shown) that controls each part of the vehicle 30. If the vehicle 30 has not started to run (NO in step S10), the control unit 10 repeats the process of step S10 again.

[0034] When the vehicle 30 starts traveling (YES in step S10), the measurement unit 11 acquires measurement results from the load sensors 21a1, 21a2, . . . (step S11), and measures the weight distribution of the luggage placed in the luggage compartment 32 (step S12).

[0035] 5 is a diagram showing an example of weight distribution in the luggage compartment 32, where (A) shows the weight distribution when the vehicle 30 starts to move, and (B) shows the weight distribution at a certain point in time after the vehicle starts to move. The units of values ​​in FIG. 5 are kg.

[0036] The measurement unit 11 determines the weight distribution by arranging the measured values ​​of the load sensors 21a1, 21a2... according to the positions of the areas 33a1, 33a2... in which the load sensors 21a1, 21a2... are provided. For example, the measurement unit 11 arranges the value of the load sensor 21a1 provided in the area 33a1 at the front left corner. The measurement unit 11 also arranges the value of the load sensor 21a2 provided in the area 33a2 to the right of the value of the load sensor 21a1. Since one load sensor 21 is provided for each of the areas 33a1, 33a2..., it is possible to measure the weight distribution in detail.

[0037] Then, the measuring unit 11 detects whether or not the load has collapsed or there is a risk of the load collapse based on the weight distribution (step S13). For example, the measuring unit 11 detects whether or not the load has collapsed or there is a risk of the load collapse by comparing the weight distribution at the start of travel (see FIG. 5(A)) with the latest weight distribution, i.e., the weight distribution in the most recently performed step S12 (see FIG. 5(B)). In this embodiment, the measuring unit 11 detects whether or not the load has collapsed or there is a risk of the load collapse when the measurement results of two or more load sensors 21a1, 21a2,... change beyond a threshold value (e.g., 5 kg).

[0038] In the example shown in Fig. 5, a weight change of 5 kg or more, which is the threshold value, occurs with respect to the value in Fig. 5(A) in the area surrounded by the dotted line in Fig. 5(B). Therefore, the measuring unit 11 detects that the load has collapsed or there is a risk of the load collapsing.

[0039] Returning to the explanation of Fig. 4, if the measurement unit 11 detects in step S13 that a cargo collapse has occurred or is likely to occur (YES in step S14), the measurement unit 11 outputs to the output unit 12 that a cargo collapse has occurred or is likely to occur, and the output unit 12 outputs information about the occurrence or risk of a cargo collapse to the terminal device 2 or the display device 3 (step S15).

[0040] 6 is an example of the display on the display device 3 when the output unit 12 outputs information about the possibility of cargo collapse to the display device 3. The display device 3 has a display unit 3a that displays text information, and the text information "There is a risk of cargo collapse. Please check" is displayed on the display unit 3a, which is information about the possibility of cargo collapse. Then, the control unit 10 ends the process.

[0041] Returning to the description of FIG. 4, if the measurement unit 11 does not detect the occurrence or risk of cargo collapse in step S13 (NO in step S14), the measurement unit 11 waits for a certain period of time (e.g., 30 seconds) (step S16). That is, if the certain period of time has not elapsed after the processing of step S14 (NO in step S16), the measurement unit 11 repeats the processing of step S16, and if the certain period of time has elapsed after the processing of step S14 (YES in step S16), the measurement unit 11 returns the processing to step S11 and acquires the measurement result from the load sensor 21. In other words, the baggage monitoring device 1 repeatedly and continuously performs the processing of steps S11 to S16. This processing is repeated, for example, until the engine of the vehicle 30 is stopped.

[0042] As described above, according to this embodiment, the load sensors 21a1... are provided for each of the areas 33a1..., and the occurrence or risk of cargo collapse is detected based on the measurement results of the load sensors 21a1..., so that it is possible to obtain detailed weight distribution of the cargo placed in the luggage compartment 32. Then, by knowing the detailed weight distribution, it is possible to accurately detect the occurrence or risk of cargo collapse.

[0043] Furthermore, according to this embodiment, when the measurement results from two or more load sensors 21a1, 21a2, etc. change beyond a threshold value, it is possible to accurately detect the occurrence or risk of cargo collapse, by detecting the occurrence or risk of cargo collapse.

[0044] For example, in the conventional technology of installing load sensors at the four corners of the luggage compartment, there is a possibility that partial cargo collapse cannot be detected. In the present embodiment, however, by laying multiple load sensors 21 over the entire surface of the floor surface 33, the accuracy of detecting the occurrence of cargo collapse or the possibility of cargo collapse is improved.

[0045] Furthermore, according to this embodiment, the luggage compartment 32 is divided into rectangular regions with each side being approximately 500 mm or less in length, and a load sensor 21 is provided for each of the regions, making it possible to obtain a more detailed and accurate weight distribution in the luggage compartment 32.

[0046] Furthermore, according to this embodiment, measurement results are obtained from the load sensor 21 at regular intervals from the time the vehicle 30 starts traveling, and the measurement unit 11 obtains the weight distribution in the luggage compartment 32, making it possible to know in real time whether cargo has shifted or there is a risk of cargo shifting.

[0047] Furthermore, according to this embodiment, the output unit 12 outputs information about the occurrence of cargo collapse or information about the risk of cargo collapse to the display device 3, etc., so that the driver can be instantly informed of the occurrence or risk of cargo collapse.

[0048] In this embodiment, the measuring unit 11 detects that a load collapse has occurred or is likely to occur when the measurement results from two or more load sensors 21a1, 21a2... have changed beyond a threshold value (e.g., 5 kg), but the threshold value may be different for cases where a load collapse has occurred and cases where a load collapse is likely to occur. For example, the measuring unit 11 may detect that a load collapse is likely to occur when the measurement results from two or more load sensors 21a1, 21a2... have changed beyond a first threshold value (e.g., 5 kg), and the measuring unit 11 may detect that a load collapse has occurred when the measurement results from two or more load sensors 21a1, 21a2... have changed beyond a second threshold value (e.g., 10 kg).

[0049] Also, for example, the measurement unit 11 may detect that there is a risk of cargo collapse when the measurement results from two or more load sensors 21a1, 21a2, etc. change beyond a threshold value, and may detect that cargo collapse has occurred when the measurement results from a number greater than two (for example, three) or more load sensors 21a1, 21a2, etc. change beyond a threshold value.

[0050] In this embodiment, the measurement unit 11 detects the occurrence or possibility of cargo collapse when the measurement results from two or more load sensors 21a1, 21a2, etc. change beyond the threshold value, but the threshold value may be different depending on the position of the load sensors 21a1, 21a2, etc. (areas 33a1, 33a2, etc.). For example, the threshold value of the load sensor 21 provided in the area located near the center of the floor surface 33 (for example, the load sensors 21j3, 21k3 provided in areas 33j3, 33k3 and adjacent areas thereto, see FIG. 2) may be smaller than the threshold value of other areas. This enables detailed monitoring settings such as focusing on monitoring cargo collapse in the center of the luggage compartment 32.

[0051] In addition, in this embodiment, the output unit 12 outputs information about the possibility of cargo collapse to the display device 3 based on the information acquired from the measurement unit 11, but the output form of the output unit 12 is not limited to this. For example, the output unit 12 may output information about the occurrence or possibility of cargo collapse as a voice or a warning sound from a speaker (not shown) or the like.

[0052] Also, for example, when the measuring unit 11 detects the occurrence of cargo collapse and the possibility of cargo collapse, the measuring unit 11 may output information about the occurrence of cargo collapse or information about the possibility of cargo collapse to the display device 3 or the like via the output unit 12 based on the detection result. In this case, for example, when the measuring unit 11 detects that cargo collapse has occurred, text information about the occurrence of cargo collapse, such as "Cargo has collapsed. Please check immediately," is displayed on the display unit 3a.

[0053] Also, for example, the output unit 12 may obtain load value information (weight distribution in the luggage compartment 32 as shown in FIG. 5) and information on changes in weight distribution from the measurement unit 11, and output load value information at the start of travel or during travel (see FIG. 5) as information on the occurrence of cargo collapse or information on the possibility of cargo collapse, and information on the position where the weight distribution has changed (enclosed by a dotted line in FIG. 5(B)) to the terminal device 2 or the display device 3. For example, the output unit 12 may send the load value information at the start of travel or during travel by email to an operations manager, etc., or may output a list of the load value information at the start of travel or during travel to the terminal device 2, etc., or may output the load value information in real time to a mobile terminal, etc. during loading and unloading work. In this way, various services can be developed using the present invention.

[0054] In addition, in this embodiment, the measuring unit 11 detects whether or not a load collapse has occurred or is likely to occur, and the output unit 12 outputs information about the occurrence of a load collapse or information about the risk of a load collapse to the display device 3, etc., but the process in which the measuring unit 11 detects whether or not a load collapse has occurred or is likely to occur is not essential. For example, the measuring unit 11 may continuously measure the weight distribution of the loads placed in the load compartment 32, and the output unit 12 may continuously output the load value information. In this case, the load value information as shown in FIG. 5 is displayed on the terminal device 2 or the display device 3.

[0055] Furthermore, in this embodiment, the size of the regions 33a1... is approximately 500 mm square, but the size and shape of the regions 33a1... are not limited to this.

[0056] Although the embodiment of the present invention has been described above in detail with reference to the drawings, the specific configuration is not limited to this embodiment, and design changes within the scope of the gist of the present invention are also included. For example, the above example has been described in detail to clearly explain the present invention, and is not necessarily limited to those having all of the configurations described. In addition, it is possible to replace a part of the configuration of the embodiment with the configuration of another embodiment, and it is also possible to add, delete, or replace other configurations to the configuration of the embodiment. [Explanation of symbols]

[0057] 1: Baggage monitoring device 2: Terminal device 3:Display device 3a: Display section 10: Control section 11: Measurement section 12: Output section 21, 21a1, 21a2...: Load sensor 30: Vehicle 31: Driver's cab 32: Luggage compartment 33: Floor 33a1, 33a2...33j3, 33k3...: area 50: Control device 52: Communication equipment 54: Storage device 56 :CPU 58: Memory

Claims

1. A plurality of load sensors are provided at predetermined intervals on a floor surface of a luggage compartment of the vehicle; a measuring unit that continuously measures a weight distribution of the luggage placed in the luggage compartment based on a measurement result by the load sensor and detects whether or not the luggage has collapsed or there is a risk of the luggage having collapsed based on the weight distribution; an output unit that outputs a measurement result of the measurement unit; Equipped with The plurality of load sensors are provided in each of a plurality of regions that divide the floor surface into a two-dimensional array in a front-rear direction and a left-right direction of the vehicle, The measurement unit detects a risk of cargo collapse when a measurement result of the load sensor changes beyond a first threshold, and detects that cargo collapse has occurred when the measurement result changes beyond a second threshold, The output unit outputs information regarding the occurrence of a load collapse or the possibility of a load collapse. A luggage monitoring device.

2. The measurement unit acquires measurement results from the load sensor at regular intervals from when the vehicle starts traveling, The measurement unit detects that a load has shifted or is likely to shift when the measurement results of two or more of the load sensors at the start of the travel have changed beyond a threshold value.

2. The baggage monitoring device according to claim 1.

3. The threshold value varies depending on the position of the region.

3. The luggage monitoring device according to claim 2.

4. The region has a rectangular shape with each side having a length of approximately 500 mm or less.

4. A luggage monitoring device according to claim 1.

5. Computer, a measurement unit which comprises a plurality of load sensors provided at predetermined intervals on a floor surface of a luggage compartment of a vehicle, the measurement unit dividing the floor surface into a plurality of areas arranged two-dimensionally in the front-rear and left-right directions of the vehicle, and which continuously measures the weight distribution of luggage provided in the luggage compartment based on the measurement results of the load sensors provided in each of the areas, and which detects whether or not the luggage has collapsed or there is a risk of the luggage having collapsed based on the weight distribution; an output unit that outputs the measurement result of the measurement unit; A program for causing the device to function as a The measurement unit detects a risk of cargo collapse when a measurement result of the load sensor changes beyond a first threshold, and detects that cargo collapse has occurred when the measurement result changes beyond a second threshold, The output unit outputs information regarding the occurrence of a load collapse or the possibility of a load collapse. A program characterized by:

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