JP6441846B2 - Package shock detection device, package impact detection method, and package impact detection program - Google Patents

Description

  The present invention relates to a package impact detection device that detects an impact applied to a package that packs an object to be packed, a package impact detection method that is executed in the package impact detection device, and a package impact detection program.

  Conventionally, when storing and transporting packed items such as precision equipment, in order to protect the packed item from shocks caused by vibration, collision or dropping applied to the packed item, for example, packing the packed item such as cardboard Contain in the body. However, corrugated cardboard has a relatively high rigidity, and when it is superimposed, the deformation width does not become so large, so that when an impact is applied, the pressure due to the impact cannot be sufficiently absorbed. Therefore, when a large impact such as dropping is applied, the packaged item may be damaged.

  Usually, when the product is dropped during transportation, the package itself for packing the packaged goods is usually damaged. For example, when falling from the corner of the package, the corner is recessed. In addition, the ridge is recessed even if it falls from the ridge of the package. Therefore, even during transportation, the fact of impact can be inferred by visually observing the package.

  However, depending on how the impact is applied, the package may be hardly damaged although the packaged item is damaged. For example, it is a case where it falls from the surface of the package. In such a case, the fact of falling cannot be inferred during transportation even when the package is visually observed. Therefore, if it falls from the surface of the package, even if the packaged goods such as precision equipment are damaged at the transport destination, it is not known whether it was damaged before transport or damaged during transport. Even if it is damaged during transportation, it may be misunderstood as damaged before transportation.

  For this reason, a technique is disclosed in which the fact of an impact can be known afterwards by attaching a device for detecting and recording the impact to an object to be packed or a package. For example, it has a function to detect the fall of the device itself with a 3-axis accelerometer and record the history of acceleration from the fall to the collision. (For example, refer to Patent Document 1).

JP 2009-036782 A

  As mentioned above, when the packaged items packed in the package are dropped from the corners or ridges during transportation, the package is recessed. The fact of falling can easily be inferred.

  However, in the event that the package has been dropped from the surface of the package, since the package is hardly damaged, only the impact is estimated from the history of acceleration, and the basis for recognizing the fact that the package has dropped. There was a problem that it was scarce.

  The present invention has been made in view of the above-described actual situation, and even when the packaging body is hardly damaged, the packaging body can immediately recognize that there has been an impact such as dropping. An object of the present invention is to provide an impact detection apparatus, a package impact detection method and a package impact detection program executed in the package impact detection apparatus.

The present invention employs the following configuration in order to solve the above problems.
That is, according to one aspect of the present invention, the package impact detection device of the present invention is applied to the package body in the package impact detection device that detects an impact applied to the package body that packs an object to be packed. An impact value acquisition unit for acquiring an impact value due to the impact from a plurality of impact sensors attached to the package, and an impact applied to the package based on the impact value acquired by the impact value acquisition unit When it is determined that a surface impact is applied by any one of the surface impact determination units for determining whether the surface impact is applied to any surface constituting the package, and the surface impact is determined by the surface impact determination unit, And an impact detection output unit that outputs impact detection information indicating that it has been applied.

  In the package impact detection device of the present invention, the package has a rectangular parallelepiped shape, the plurality of impact sensors are eight impact sensors attached to corners of the rectangular parallelepiped shape, and the surface impact determination unit However, it is desirable to determine whether or not there is a surface impact based on the impact value output by each of the eight impact sensors during the elapse of a predetermined time.

  In the package impact detection device of the present invention, the eight impact sensors detect a first impact having a magnitude greater than or equal to a first threshold, and a predetermined time elapses after the first impact detection. If none of the eight impact sensors detects a second impact greater than or equal to a second threshold smaller than the first threshold, the surface impact determination unit may It is desirable to determine that the impact is a surface impact applied to any surface constituting the package.

  In the package impact detection device of the present invention, the eight impact sensors detect a first impact having a magnitude greater than or equal to a first threshold, and a predetermined time elapses after the first impact detection. When the second impact having a magnitude equal to or larger than the second threshold smaller than the first threshold is detected by seven of the eight impact sensors, the surface impact determination unit is configured to detect the first impact. It is determined that the second impact is an angular impact applied to any one of the corners of the package, and the first impact having a magnitude greater than or equal to a first threshold is detected by the eight impact sensors. A second impact having a magnitude equal to or larger than a second threshold smaller than the first threshold is detected by six of the seven impact sensors after a lapse of a predetermined time from the detection of the first impact. If detected, the surface impact determination unit performs the first time. It is desirable that the impact is determined to be any of the crest shock imparted to the ridge that constitutes the packing body.

  In the package impact detection device of the present invention, each of the eight impact sensors is an acceleration sensor that detects acceleration in three axial directions orthogonal to each other, and the acceleration sensor has an acceleration of a predetermined value or more. It is desirable to output the impact value when a time change is detected.

  Moreover, according to one aspect of the present invention, the package impact detection method of the present invention is a package impact detection that is performed in a package impact detection device that detects an impact applied to a package that packs an object to be packed. A method for obtaining an impact value due to an impact applied to the package from a plurality of impact sensors attached to the package, and applying the impact to the package based on the acquired impact value. Is a surface impact applied to any of the surfaces constituting the package, and when it is determined that the surface impact is applied, impact detection information indicating that the surface impact is applied Is output.

  Further, according to one aspect of the present invention, the package impact detection program of the present invention is a package impact detection program in a package impact detection device that detects an impact applied to a package that packs an object to be packed. Then, the computer of the package impact detection device is obtained by the impact value acquisition means, the impact value acquisition means for acquiring the impact value due to the impact applied to the package from a plurality of impact sensors attached to the package. A surface impact determination means for determining whether the impact applied to the package is a surface impact applied to any surface constituting the package based on the applied impact value, the surface impact determination When it is determined that the surface impact is applied by the means, the package impact detection program for functioning as the impact detection output means for outputting the impact detection information indicating that the surface impact is applied. It is.

  According to the present invention, when an object to be packed such as a precision instrument is damaged at a transportation destination, it is possible to immediately recognize that there has been an impact such as a drop even if the package is hardly damaged. , Has the effect.

It is a figure which shows the example of application of the package impact detection apparatus of this Embodiment. It is a figure which shows the external appearance of the package impact detection apparatus of this Embodiment. It is a functional block diagram of the package impact detection device of the present embodiment. It is a flowchart which shows the flow of the package impact detection process of this Embodiment. It is a figure for demonstrating an aspect when a package falls from the surface. It is a figure which shows the example of transition of the impact which each impact sensor detects when a package body falls from the surface. It is a figure for demonstrating a mode when a package falls from a corner. It is a figure which shows the example (the 1) of transition of the impact which each impact sensor detects when a package body falls from a corner. It is a figure which shows the example (the 2) of transition of the impact which each impact sensor detects when a package body falls from a corner. It is a figure for demonstrating an aspect when a package falls from the ridge. It is a figure which shows the example of transition of the impact which each impact sensor detects when a package body falls from a ridge.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a diagram illustrating an application example of the package impact detection apparatus according to the present embodiment.

  In FIG. 1, the package impact detection device 1 is attached to the side surface of the package 10. The attachment position may be the upper surface.

  The package 10 is a rectangular parallelepiped box member, is formed of paper such as cardboard, and accommodates an object to be packed such as a precision device (not shown). The package 10 protects the package from an impact caused by vibration, collision, or dropping applied to the package. The package 10 includes four side wall members, four lid piece members integrally provided at the upper ends of the respective side wall members, and four bottom piece members integrally provided at the lower ends of the respective side wall members. It is formed. The upper surface opening of the package 10 is formed to be freely opened and closed by a lid piece member. Moreover, the lower surface opening of the package 10 is formed to be freely opened and closed by a bottom piece member. In FIG. 1, the upper surface opening is shown in an opened state, and the lower surface opening is shown in a closed state. The impact sensor 2 is attached to eight corners of the package 10. The package impact detection device 1 and the eight impact sensors 2 are communicably connected by radio or wire.

The impact sensor 2 detects the rate of change in speed over time, that is, acceleration, which is a change in speed per unit time. The impact sensor 2 is configured to output an output signal by detecting acceleration.
The impact sensor 2 is, for example, a triaxial acceleration sensor that detects acceleration in three axial directions orthogonal to each other. The impact sensor 2 attached to the package 10 detects an acceleration that occurs when a large acceleration that causes the package 10 to fall on the ground occurs in a very short time, that is, when an impact is received.

FIG. 2 is a diagram illustrating an appearance of the package impact detection device according to the present embodiment.
In FIG. 2, the package impact detection apparatus 1 includes a control unit (not shown) inside, and includes one or both of a display unit 13A and a speaker 13B. In the package impact detection device 1, the main body housing is formed in a thin plate shape so that it does not get in the way when the package 10 is transported.

  The control unit includes a central processing unit (CPU), a random access memory (RAM), a flash disk, a communication interface, and an input / output interface, which are connected via a bus. The control unit is also an example of a computer.

  The CPU controls the overall operation of the package impact detection device 1. The RAM temporarily stores at least part of an OS (Operating System) program and application programs executed by the CPU. The RAM stores various data necessary for processing by the CPU. The flash disk stores an OS and application programs. The communication interface transmits and receives data to and from the impact sensor 2. The output interface transmits data to the display unit 13A or the speaker 13B.

  The display unit 13A outputs message information composed of characters, graphics, and the like. The speaker 13B outputs message information by voice or the like.

FIG. 3 is a functional block diagram of the package impact detection apparatus of the present embodiment.
In FIG. 3, the package impact detection device 1 is connected to a plurality of impact sensors 2, for example, 8 impact sensors 2, so as to be communicable wirelessly or by wire. The package impact detection apparatus 1 includes an impact value acquisition unit 11, a surface impact determination unit 12, and an impact detection output unit 13, and detects an impact applied to the package 10 that packages an object to be packaged.

  The impact value acquisition unit 11 acquires the impact value due to the impact applied to the packaging body 10 from the plurality of impact sensors 2 attached to the packaging body 10. For example, the plurality of impact sensors 2 are eight impact sensors 2 attached to a rectangular parallelepiped corner. Each of the eight impact sensors 2 is a triaxial acceleration sensor that detects acceleration in three axial directions orthogonal to each other, and outputs an impact value when a time change in acceleration equal to or greater than a predetermined value is detected.

  The surface impact determination unit 12 is based on the impact value acquired by the impact value acquisition unit 11, and whether the impact applied to the package 10 is a surface impact applied to any surface constituting the package 10. Determine whether or not. For example, the surface impact determination unit 12 determines whether or not the surface impact is based on the impact value output by each of the eight impact sensors 2 during the elapse of a predetermined time. More specifically, the eight impact sensors 2 detect the first impact having a magnitude greater than or equal to the first threshold, and the eight impact sensors 2 are detected after a predetermined time has elapsed since the first impact detection. When none of the second impacts having a magnitude equal to or larger than the second threshold value smaller than the first threshold value is detected, the surface impact determination unit 12 determines which one of the first impacts constitutes the packaging body 10. It is determined that the surface impact is applied to the surface. Further, the eight impact sensors 2 detect the first impact having a magnitude greater than or equal to the first threshold, and seven out of the eight impact sensors 2 after a predetermined time has elapsed since the first impact detection. When the impact sensor 2 detects a second impact having a magnitude equal to or larger than the second threshold value smaller than the first threshold value, the surface impact determination unit 12 determines whether the first impact constitutes the package 10. It is determined that the angular impact is applied to the corner. The eight impact sensors 2 detect the first impact having a magnitude greater than or equal to the first threshold, and six impact sensors 2 out of the seven impact sensors 2 after a predetermined time has elapsed since the first impact detection. 2, when the second impact having a magnitude equal to or larger than the second threshold smaller than the first threshold is detected, the surface impact determination unit 12 determines whether the first impact constitutes the package 10. It is determined that the edge impact is given to

  The impact detection output unit 13 outputs impact detection information indicating that a surface impact is applied by the surface impact determination unit 12. The impact detection output unit 13 corresponds to the display unit 13A or the speaker 13B illustrated in FIG.

Next, the flow of the package impact detection process executed by the package impact detection apparatus 1 described above will be described.
In addition, in order to make the following description easy to understand, it is assumed that the package 10 is a rectangular parallelepiped box member. The impact sensor 2 is attached to eight corners of the package 10. As shown in FIG. 1, the eight impact sensors 2 are distinguished as S1, S2, S3, and S4 in order of the corners of the joint portion between the bottom piece member and the side wall member in the clockwise direction when viewed from above (clockwise). The upper corner of S1 is identified as S5, the upper portion of S2 as S6, the upper portion of S3 as S7, and the upper portion of S4 as S8.

FIG. 4 is a flowchart showing the flow of the package impact detection process of the present embodiment.
The package impact detection device 1 is attached to the package 10 and starts executing the package impact detection process by pressing a power switch or a reset button (not shown).

First, the CPU of the package impact detection apparatus 1 determines whether or not the first impact is detected from the eight impact sensors 2 (S1 to S8) in step S401. The impact detected by the impact sensor 2 is an acceleration when a large acceleration occurs in a very short time as described above. In the impact due to free fall, the change in speed (acceleration) from when an object hits the floor or the ground until it stops is divided by the gravitational acceleration of 9.8 (m / s ² ). This division result is defined as an impact value (unit: G). If the velocity immediately before the collision is V (m / s) and the time from the collision to the stop is t (s), the impact value can be calculated as (V-0) / (t × 9.8). For example, in the case of free fall from the position of 1 (m), if the time from the collision to the stop is 0.01 (s), the impact value = ((2 × 9.8 × 1) ^1/2 −0. ) / (0.01 × 9.8) = 45.175 (G) is calculated.

  Accordingly, when an impact value of, for example, 10 (G) or more is output from each of the eight impact sensors 2, it is determined in step S401 that the first impact has been detected.

  If it is not determined that the first impact has been detected (step S401: NO), the process waits until the first impact is detected from the eight impact sensors 2.

  On the other hand, when the first impact is detected (step S401: YES), the CPU determines whether or not the second impact is detected from the impact sensor 2 in step S402. Whether or not the second impact is detected is determined from the impact sensor 2 within a predetermined time from the detection of the first impact, for example, after 0.1 (s) to 0.5 (s). For example, the determination is made based on whether or not an impact value of 5 (G) or more is output.

  If it is not determined that the second impact has been detected even after a predetermined time (for example, 0.5 (s)) has elapsed since the first impact (step S402: NO), the first time detected in step S401 Is determined to be a surface impact applied to any surface constituting the package 10.

  FIG. 5 is a diagram for explaining an aspect when the package is dropped from the surface, and FIG. 6 is a diagram illustrating an example of the transition of the impact detected by each impact sensor when the package is dropped from the surface. It is. In the graph shown in FIG. 6, the horizontal axis represents elapsed time (s) and the vertical axis represents impact value (G). S <b> 1 to S <b> 8 are impact sensors 2 attached to eight corners of the package 10. In FIG. 6, the detected first impact is shown at the position of the elapsed time 0 (s).

  As shown in FIG. 5, the package 10 that is a rectangular parallelepiped box member may fall from one of the six surfaces to the ground or the like. In such a case, the eight impact sensors 2 detect impacts of a predetermined magnitude or more almost simultaneously as shown in FIG. However, although the pressure due to dropping is absorbed by the entire falling surface and slightly bounces, a large impact is not detected thereafter. Therefore, when the impact is detected once, it can be determined that the first impact is a surface impact.

  In step S403, the CPU outputs impact detection information indicating that a surface impact has been applied to the package 10 from either or both of the display unit 13A and the speaker 13B. For example, output a message (face drop information) such as "Luggage has fallen. The box may not be damaged significantly, but the contents may be damaged." . When the impact detection information is output, the package impact detection process ends. Note that when the reset button is pressed, execution of the package impact detection process is started again.

  On the other hand, when it is determined in step S402 that the second impact has been detected (step S402: YES), the CPU determines whether or not the third impact has been detected from the impact sensor 2 in step S404. . Whether or not the third impact is detected is determined from the impact sensor 2 within a predetermined time from the detection of the second impact, for example, between 0.1 (s) and 0.5 (s). For example, the determination is made based on whether or not an impact value of 5 (G) or more is output.

  If it is determined that the third impact has been detected after a lapse of a predetermined time from the second impact (step S404: YES), the first impact detected in step S401 is the one constituting the package 10. It is determined that the angular impact is applied to the corner. The impact sensor 2 detects the impact three times because it falls from the corner of the package 10 in the first time and falls around the corner in the second time, so that the ridge between adjacent corners This is because the surface is grounded by grounding and falling around the ridge for the third time. That is, the second and third impacts are not natural falls but impacts caused by falling.

  FIG. 7 is a view for explaining an aspect in the case where the packing body falls from the corner. FIG. 8 is a diagram illustrating an example (part 1) of a transition of an impact detected by each impact sensor when the package is dropped from a corner. In the graph shown in FIG. 8, the horizontal axis represents the elapsed time (s), and the vertical axis represents the impact value (G). S <b> 1 to S <b> 8 are impact sensors 2 attached to eight corners of the package 10. In FIG. 8, the detected first impact is shown at the position of elapsed time 0 (s), and the detected second impact is shown at the position of elapsed time 0.2 (s). The third impact made is shown at the position of elapsed time 0.4 (s).

  As shown in FIG. 7, the package 10 that is a rectangular parallelepiped box member may fall to the ground or the like from any one of the eight corners. The example shown in FIG. 8 is an example in the case of dropping from the corner where the impact sensor 2 of S1 is attached. In such a case, in the first drop impact, as in the case of the face drop, the eight impact sensors 2 detect impacts of a predetermined magnitude or more almost simultaneously as shown in FIG.

  And the package 10 falls down centering | focusing on the angle | corner to which the impact sensor 2 of S1 was attached. FIG. 8 illustrates a case where the hill between the corner to which the shock sensor 2 of S1 is attached and the ridge between the corner to which the shock sensor 2 of S2 is grounded is grounded. Then, the seven impact sensors 2 of S2 to S7 excluding the impact sensor 2 of S1 detect an impact of a predetermined magnitude or more almost simultaneously as shown in the position of the elapsed time 0.2 (s) in FIG. To do. The second impact is smaller than the first impact. Further, the impact value output by the impact sensor 2 of S3 and S7 is larger than the impact value output by the impact sensor 2 of S2, S4 to S6, S8. This is because the corner where the impact sensor 2 of S3 and S7 is attached is farther from the corner where the impact sensor 2 of S1 is attached than the corner where the impact sensor 2 of S2, S4 to S6 and S8 is attached. This is because the speed immediately before hitting the ground or the like is high.

  Further, the packing body 10 falls over the ridge between the corners to which the impact sensors 2 of S1 and S2 are attached. Then, the six impact sensors 2 of S3 to S7, excluding the impact sensors 2 of S1 and S2, are subjected to an impact of a predetermined magnitude or more almost simultaneously as shown in the position of the elapsed time 0.4 (s) in FIG. Is detected. The third impact is smaller than the first impact, but may be greater or less than the second impact. This is due to the shape of the package 10. Further, the impact value output by the impact sensor 2 of S3, S4, S7, and S8 is larger than the impact value output by the impact sensor 2 of S5 and S6. This is because the angle at which the impact sensor 2 of S3, S4, S7, S8 is attached is larger than the angle at which the impact sensor 2 of S5, S6 is attached. This is because it is located at a distance far from the ridge between them, and the speed immediately before hitting the ground is high.

The speed immediately before the corner other than the corner that is the center of the fall hits due to the fall depends on the shape of the package 10, the position of the center of gravity, and the like. Although the speed may be faster or slower than the natural fall, the speed of the package 10 in which one side is around 1 (m) or less than 1 (m) is slower than the natural fall. Is normal. Even if it is assumed that it is the same as a natural fall, for example, when the vehicle falls from a height of 30 (cm), the velocity V = (2 × 9.8 × 0.3) ^1/2 immediately before the collision is obtained. If the time from the collision to the stop is 0.01 (s), the impact value = ((2 × 9.8 × 0.3) ^1/2 −0) / (0.01 × 9.8) = 24.743 (G) is calculated. For example, when an impact value of 10 (G) or more is output, it is determined in step S402 that the second impact has been detected, and in step S404, it is determined that the third impact has been detected. Therefore, when the impact is detected three times, it can be determined that the first impact is an angular impact.

  In step S405, the CPU outputs impact detection information indicating that an angular impact has been applied to the package 10 from either or both of the display unit 13A and the speaker 13B. For example, a message (corner drop information) such as “The baggage has fallen into a corner. The contents may be damaged.” Is output. When the impact detection information is output, the package impact detection process ends. Note that when the reset button is pressed, execution of the package impact detection process is started again.

  On the other hand, if it is not determined in step S404 that the third impact has been detected (step S404: NO), that is, if the impact has been detected twice, the CPU determines in step S406 that the second impact has been detected. It is determined whether or not an impact has been detected by the six impact sensors 2 (whether it has been detected by the seven impact sensors 2). The impact sensor 2 can detect two impacts in the following two modes.

  The first case is a case in which the first time drops from the corner of the package 10 and the second time the ground is touched on the surface including the corner. The second case is a case where it falls from the ridge of the packaging body 10 at the first time and is grounded on the surface including the ridge at the second time. Since the former falls around the corner, seven impact sensors 2 output impact values in the second impact. In the latter, since it falls around the ridge, six impact sensors 2 output impact values in the second impact.

  FIG. 9 is a diagram illustrating an example (part 2) of the transition of the impact detected by each impact sensor when the package is dropped from the corner. In the graph shown in FIG. 9, the horizontal axis represents the elapsed time (s), and the vertical axis represents the impact value (G). S <b> 1 to S <b> 8 are impact sensors 2 attached to eight corners of the package 10. In FIG. 9, the detected first impact is shown at the position of elapsed time 0 (s), and the detected second impact is shown at the position of elapsed time 0.2 (s). .

  The example shown in FIG. 9 is an example in the case of dropping from the corner where the impact sensor 2 of S1 is attached. In such a case, in the first drop impact, as in the case of the face drop, the eight impact sensors 2 detect impacts of a predetermined magnitude or more almost simultaneously as shown in FIG.

  And the package 10 falls down centering | focusing on the angle | corner to which the impact sensor 2 of S1 was attached. FIG. 9 exemplifies a case where the surface composed of the corners to which the impact sensors 2 of S2, S3 and S4 are grounded is grounded around the corner to which the impact sensor 2 of S1 is attached. Yes. Then, the seven impact sensors 2 of S2 to S7 excluding the impact sensor 2 of S1 detect an impact of a predetermined magnitude or more almost simultaneously as shown in the position of the elapsed time 0.2 (s) in FIG. To do. The second impact is smaller than the first impact. Further, the impact value output by the impact sensor 2 of S3 and S7 is larger than the impact value output by the impact sensor 2 of S2, S4 to S6, S8. This is because the corner where the impact sensor 2 of S3 and S7 is attached is farther from the corner where the impact sensor 2 of S1 is attached than the corner where the impact sensor 2 of S2, S4 to S6 and S8 is attached. This is because the speed immediately before hitting the ground or the like is high. Therefore, also in the above case, it can be determined that the first impact is an angular impact. That is, when it is not determined in step S406 that the second impact has been detected by the six impact sensors 2 (step S406: NO), in other words, the second impact is detected by the seven impact sensors 2. If it is detected (corresponding to the first aspect described above), the CPU gives an impact indicating that an angular impact has been applied to the package 10 from either or both of the display unit 13A and the speaker 13B in step S405. Output detection information.

  On the other hand, if it is determined in step S406 that the second impact has been detected by the six impact sensors 2 (step S406: YES) (corresponding to the second aspect described above), the second impact detected in step S401 is detected. It is determined that the first impact is a ridge impact applied to any ridge constituting the package 10.

FIG. 10 is a diagram for explaining an aspect in the case where the package has dropped from the ridge. FIG. 11 is a diagram illustrating an example of a transition of an impact detected by each impact sensor when the package is dropped from a ridge.
In the graph shown in FIG. 11, the horizontal axis represents elapsed time (s), and the vertical axis represents impact value (G). S <b> 1 to S <b> 8 are impact sensors 2 attached to eight corners of the package 10. In FIG. 11, the detected first impact is shown at the position of elapsed time 0 (s), and the detected second impact is shown at the position of elapsed time 0.2 (s). .

  As shown in FIG. 10, the packing body 10 that is a rectangular parallelepiped box member may fall to the ground or the like from any one of the eight ridges. The example shown in FIG. 11 is an example in the case of dropping from a ridge where the impact sensors 2 of S1 and S2 are attached. In such a case, in the first drop impact, as in the case of the surface drop or the corner drop, the eight impact sensors 2 detect the impact of a predetermined magnitude or more almost simultaneously as shown in FIG. To do.

  And the package 10 falls down centering | focusing on the edge between the corners where the impact sensor 2 of S1 and S2 was attached. FIG. 11 exemplifies a case where the surface is grounded by falling over the ridge between the corners to which the impact sensors 2 of S1 and S2 are attached. Then, the six impact sensors 2 of S3 to S7, excluding the impact sensors 2 of S1 and S2, are subjected to an impact of a predetermined magnitude or more almost at the same time as shown in the position of the elapsed time 0.2 (s) in FIG. Is detected. The second impact is smaller than the first impact. Further, the impact value output by the impact sensor 2 of S3, S4, S7, and S8 is larger than the impact value output by the impact sensor 2 of S5 and S6. This is because the angle at which the impact sensor 2 of S3, S4, S7, S8 is attached is larger than the angle at which the impact sensor 2 of S5, S6 is attached. This is because it is located at a distance far from the ridge between them, and the speed immediately before hitting the ground is high. Therefore, in the above case, it can be determined that the first impact is a ridge impact.

  In step S407, the CPU outputs impact detection information indicating that a ridge impact has been applied to the package 10 from either or both of the display unit 13A and the speaker 13B. For example, a message (ridge falling information) such as “the baggage has dropped on the edge. The contents may be damaged.” Is output. When the impact detection information is output, the package impact detection process ends. Note that when the reset button is pressed, execution of the package impact detection process is started again.

  The embodiments of the present invention have been described above with reference to the drawings. However, the above-described embodiments of the present invention are not limited to hardware or a DSP (Digital Signal Processor) board as a function of a package impact detection device. It can be realized by firmware or software on the CPU board.

  In addition, the package impact detection device to which the present invention is applied is not limited to the above-described embodiment as long as the function is executed, and includes a plurality of devices even if it is a single device. Needless to say, the system or the integrated device may be a system in which processing is performed via a network such as a LAN or a WAN.

  It can also be realized by a system including a CPU, a ROM or RAM memory connected to a bus, an input device, an output device, an external recording device, a medium driving device, and a network connection device. That is, a ROM or RAM memory, an external recording device, and a portable recording medium in which a software program for realizing the system of the above-described embodiment is recorded is supplied to the package impact detection device, and the package impact detection device Needless to say, this can also be achieved by the computer reading and executing the program.

  In this case, the program itself read from the portable recording medium or the like realizes the novel function of the present invention, and the portable recording medium or the like on which the program is recorded constitutes the present invention.

  Examples of portable recording media for supplying the program include flexible disks, hard disks, optical disks, magneto-optical disks, CD-ROMs, CD-Rs, DVD-ROMs, DVD-RAMs, magnetic tapes, and nonvolatile memory cards. Various recording media recorded via a network connection device (in other words, a communication line) such as a ROM card, electronic mail or personal computer communication can be used.

  The computer (information processing apparatus) executes the program read out on the memory, thereby realizing the functions of the above-described embodiment, and an OS running on the computer based on the instructions of the program. Performs part or all of the actual processing, and the functions of the above-described embodiments are also realized by the processing.

  Furthermore, a program read from a portable recording medium or a program (data) provided by a program (data) provider is stored in a memory provided in a function expansion board inserted into the computer or a function expansion unit connected to the computer. After being written, the CPU of the function expansion board or function expansion unit performs part or all of the actual processing based on the instructions of the program, and the functions of the above-described embodiments are also realized by the processing. obtain.

  That is, the present invention is not limited to the embodiment described above, and can take various configurations or shapes without departing from the gist of the present invention.

DESCRIPTION OF SYMBOLS 1 Packing body impact detection apparatus 2 Impact sensor 10 Packing body 11 Impact value acquisition part 12 Surface impact determination part 13 Impact detection output part 13A Display part 13B Speaker

Claims (7)

In the package impact detection device that detects the impact applied to the package that packs the object to be packed,
An impact value acquisition unit for acquiring impact values due to impact applied to the package from a plurality of impact sensors attached to the package;
Surface impact that determines whether or not the impact applied to the package is a surface impact applied to any surface constituting the package based on the impact value acquired by the impact value acquisition unit A determination unit;
When it is determined by the surface impact determination unit that a surface impact has been applied, an impact detection output unit that outputs impact detection information indicating that the surface impact has been applied;
A package impact detection device comprising: The packing body has a rectangular parallelepiped shape,
The plurality of impact sensors are eight impact sensors attached to corners of the rectangular parallelepiped shape,
The surface impact determination unit determines whether or not the surface impact is based on an impact value that each of the eight impact sensors outputs during a predetermined time.
The package impact detection device according to claim 1. The eight impact sensors detect a first impact having a magnitude greater than or equal to a first threshold, and after the predetermined time has elapsed since the first impact detection, any of the eight impact sensors is the first impact sensor. When the second impact having a magnitude equal to or larger than the second threshold value smaller than the first threshold value is not detected, the surface impact determination unit determines which surface the first impact constitutes the packaging body. It is determined that the surface impact is given to
The package impact detection device according to claim 2, wherein: A first impact having a magnitude equal to or greater than a first threshold is detected by the eight impact sensors, and seven of the eight impact sensors are detected after a predetermined time has elapsed since the first impact detection. When the sensor detects a second impact having a magnitude greater than or equal to a second threshold value smaller than the first threshold value, the surface impact determination unit may determine whether the first impact constitutes the package body. Is determined to be an angular impact applied to the corner of
The eight impact sensors detect a first impact having a magnitude greater than or equal to a first threshold, and six impacts of the seven impact sensors after a predetermined time has elapsed since the first impact detection. When the sensor detects a second impact having a magnitude greater than or equal to a second threshold value smaller than the first threshold value, the surface impact determination unit may determine whether the first impact constitutes the package body. It is determined that the edge impact is given to the edge of
The package impact detection device according to claim 3. Each of the eight impact sensors is an acceleration sensor that detects acceleration in three axial directions orthogonal to each other.
The acceleration sensor outputs the impact value when detecting a time change in acceleration equal to or greater than a predetermined value.
The package impact detector according to claim 4. A package impact detection method executed in a package impact detection device that detects an impact applied to a package that packs an object to be packed,
Obtaining the impact value due to the impact applied to the package from a plurality of impact sensors attached to the package,
Based on the acquired impact value, it is determined whether the impact applied to the package is a surface impact applied to any surface constituting the package,
When it is determined that the surface impact is applied, output impact detection information indicating that the surface impact is applied,
The package impact detection method characterized by the above-mentioned. A package impact detection program in a package impact detection device that detects an impact applied to a package that packs an object to be packed,
A computer of the package impact detector;
Impact value acquisition means for acquiring impact values due to impact applied to the package from a plurality of impact sensors attached to the package;
A surface impact that determines whether the impact applied to the package is a surface impact applied to any surface constituting the package based on the impact value acquired by the impact value acquisition means. Determination means,
An impact detection output means for outputting impact detection information indicating that a surface impact has been applied, when it is determined by the surface impact determination means that a surface impact has been applied;
Package impact detection program to function as

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