Load warning device, load warning method, and load warning program

Abstract

To provide a load warning device, a load warning method, and a load warning program that can output a warning about a load.SOLUTION: A load warning device comprises: a plurality of pressure sensors each including a sensor unit that measures pressure and generates pressure information, and a sensor communication unit that transmits the pressure information containing identification information of an own device; an acquisition unit that acquires the pressure information including the identification information from each of the plurality of pressure sensors; a specification unit that specifies, based on the pressure information acquired by the acquisition unit, a pressure sensor that has measured a pressure that is equal to or greater than a first threshold value among the plurality of pressures; and a warning control unit that performs control to output a warning in a first mode in which the pressure sensor specified by the specification unit is identified.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to a load warning device, a load warning method, and a load warning program. [Background technology]

[0002] Conventionally, there is a device that measures the force applied to the hands of employees working in production sites, etc. The device comprises a glove equipped with multiple sensing units and a case including a band that is worn around the arm and that houses a storage device that receives and records signals measured by the sensing units (see Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Special table number 2008-523387 Summary of the Invention [Problem to be solved by the invention]

[0004] The technology described in Patent Document 1 calculates and displays an average value for each sensing unit. Incidentally, among the work of employees, there is a task in which multiple employees carry a single component. In this case, if the weight of the component is uneven, one side may be relatively heavy and the other side may be relatively light, and the weight of the component may be placed on only some of the multiple workers. The technology described in Patent Document 1 cannot check the work status from the perspective of weight when multiple employees are working together.

[0005] The present disclosure provides a load warning device, a load warning method, and a load warning program that can output a warning about a load. [Means for solving the problem]

[0006] One embodiment of the load warning device comprises a plurality of pressure sensors, each including a sensor unit that measures pressure and generates pressure information, and a sensor communication unit that transmits the pressure information together with the device's own identification information; an acquisition unit that acquires pressure information including the identification information from each of the plurality of pressure sensors; an identification unit that identifies, based on the pressure information acquired by the acquisition unit, a pressure sensor that measures a pressure among the plurality of pressures that is equal to or greater than a first threshold value; and an alarm control unit that controls the pressure sensor identified by the identification unit to output an alarm in a first manner that identifies the pressure sensor identified. [Effects of the Invention]

[0007] The load warning device, the load warning method, and the load warning program of the present disclosure can output a warning about a load. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a first diagram for explaining a load warning device according to an embodiment. [Figure 2] FIG. 1 is a first diagram (block diagram) for explaining a pressure-sensitive sensor according to an embodiment. [Figure 3] 2A and 2B are second diagrams for explaining a pressure-sensitive sensor according to an embodiment, in which (A) shows an example of the palm side of a glove worn on the right hand, and (B) shows an example of the back side of a glove worn on the right hand. [Figure 4] FIG. 1 is a block diagram illustrating an information processing device according to an embodiment. [Figure 5] FIG. 2 is a second diagram for explaining a load warning device according to an embodiment. [Figure 6] 1 is a flowchart illustrating a load warning method according to an embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0009] An embodiment will be described below.

[0010] [Overview of Load Alarm Device 1] First, an overview of a load warning device 1 according to an embodiment will be described. FIG. 1 is a first diagram for explaining a load warning device 1 according to an embodiment. FIG. 2 is a first diagram (block diagram) for explaining a pressure-sensitive sensor 100 according to an embodiment. Fig. 3 is a second diagram for explaining the pressure sensor 100 according to one embodiment. Fig. 3(A) is a diagram showing an example of the palm side of a glove 301 worn on the right hand, and Fig. 3(B) is a diagram showing an example of the back side of a glove 301 worn on the right hand.

[0011] As shown in FIG. 1, the load warning device 1 includes a pressure sensor 100. There may be multiple pressure sensors 100. The pressure sensor 100 may be provided in each of a pair of gloves 300 (multiple gloves 301), one on each side. There may also be multiple pairs of gloves 301 each provided with a pressure sensor 100. In other words, there may be multiple gloves 300 (301). As an example, when multiple workers carry a single item (e.g., luggage, transported goods, etc.), each worker may wear a glove 301 and carry the item. In such a case, the pressure sensor 100 disposed in the glove 301 measures the pressure applied to the worker's hand, i.e., the weight of the item. In this disclosure, "pressure" may include concepts such as "load" and "weight."

[0012] 2, each of the pressure-sensitive sensors 100 includes a sensor unit 110, a sensor communication unit 131, a sensor control unit 120, a sensor display unit 132, and a sensor speaker unit 133. The sensor display unit 132 and the sensor speaker unit 133 may be an embodiment of the alarm output unit.

[0013] The sensor unit 110 measures pressure, load, and the like to generate pressure information. That is, the sensor unit 110 may be a pressure sensor. When pressure (load) is applied to the sensor unit 110, the sensor unit 110 generates a voltage having a value corresponding to the magnitude of the pressure (load). The sensor unit 110 may use the voltage as pressure information. The sensor unit 110 may measure the pressure constantly or at predetermined intervals, for example. The predetermined interval may be various intervals such as 1 second, 3 seconds, 5 seconds, 30 seconds, 1 minute, 3 minutes, 5 minutes, 10 minutes, 15 minutes, 20 minutes, 30 minutes, 1 hour, 6 hours, 12 hours, and 24 hours. Furthermore, the sensor unit 110 may measure the pressure after a predetermined timing, for example. The "predetermined timing" here may be when the sensor unit 110 receives information (load information transmission instruction) from the information processing device 200 (described later) instructing the sensor unit 110 to transmit the pressure (load) to the information processing device 200.

[0014] As an example, the sensor unit 110 may be a sheet-type pressure sensor 100, or may have a layered structure in the order of the worker's hand (inside), glove 301, pressure sensor 100 (sensor unit 110), cushion (not shown), and outside. As shown in FIG. 3(A), the sensor unit 110 may be disposed in various parts including, for example, the palm part of the glove 301 and the finger parts of the glove 301.

[0015] The sensor communication unit 131 may be disposed, for example, on the back of the glove 301. The sensor communication unit 131 is capable of communicating with the sensor unit 110. That is, the sensor communication unit 131 may communicate with the sensor unit 110 via a wired or wireless connection. The sensor communication unit 131 acquires pressure information from the sensor unit 110 and transmits the pressure information to an external device. In this case, the sensor communication unit 131 may transmit pressure information that includes its own identification information. The identification information may be, for example, information for identifying the pressure sensor 100. The external device may be, for example, the information processing device 200 described below. The sensor communication unit 131 may communicate using short-range wireless communication such as Bluetooth (registered trademark) and Wi-Fi (registered trademark), or may communicate using other communication methods.

[0016] The sensor control unit 120 (for example, an arithmetic processing unit, etc.) controls the pressure-sensitive sensor 100. That is, the sensor control unit 120 may control the sensor unit 110, the sensor communication unit 131, the sensor display unit 132, the sensor speaker unit 133, etc.

[0017] The sensor display unit 132 is, for example, a display capable of displaying various characters, symbols, images, etc. In the present disclosure, the sensor display unit 132 may also be conceptually a light-emitting unit including one or more light-emitting diodes or light-emitting lamps.

[0018] The sensor speaker unit 133 is a speaker that outputs sounds and voices.

[0019] The pressure-sensitive sensor 100 may be provided with at least one selected from the group consisting of a sensor display unit 132 and a sensor speaker unit 133.

[0020] As shown in FIG. 3(B), the sensor control unit 120, the sensor communication unit 131, the sensor display unit 132, and the sensor speaker unit 133 may be, for example, arranged as a single unit (housed in a single housing 140) on the back of the glove 301.

[0021] The load warning device 1 includes an information processing device (computer) 200. The information processing device 200 may be mounted on the pressure sensor 100, or may be disposed independently outside the pressure sensor 100. For example, when the information processing device 200 is independently disposed outside the pressure sensor 100, it may be a portable terminal such as a laptop, tablet, or smartphone, or may be a stationary terminal such as a server or desktop. Next, the information processing device 200 will be described.

[0022] [Details of the information processing device 200] (A) When the information processing device 200 is independently disposed outside the pressure-sensitive sensor 100 First, a case where the information processing device 200 is independently disposed outside the pressure-sensitive sensor 100 will be described (see FIG. 1).

[0023] Next, the information processing device 200 according to an embodiment will be described in detail. FIG. 4 is a block diagram illustrating an information processing device 200 according to an embodiment.

[0024] The information processing device 200 includes, for example, a communication unit 221, a storage unit 222, a display unit 223, a speaker unit 224, and a control unit 210. The communication unit 221, the storage unit 222, and the display unit 223 may be an embodiment of an output unit. The control unit 210 includes, for example, an acquisition unit 211, an identification unit 212, and an alarm control unit 213. The control unit 210 may be configured, for example, by an arithmetic processing unit of the information processing device 200. The control unit 210 (for example, an arithmetic processing unit) may realize the functions of each unit (for example, the acquisition unit 211, the identification unit 212, and the alarm control unit 213) by, for example, appropriately reading and executing various programs stored in the storage unit 222.

[0025] The communication unit 221 is, for example, a communication interface capable of transmitting and receiving various information to and from a device (external device) external to the information processing device 200. The external device may be, for example, the pressure sensor 100. The communication unit 221 may perform communication using short-range wireless communication such as Bluetooth (registered trademark) and Wi-Fi (registered trademark), or may perform communication using other communication methods.

[0026] The communication unit 221 may perform pairing for communication with one or more pressure-sensitive sensors 100 under the control of the control unit 210, and may communicate with the pressure-sensitive sensors 100 after the pairing.

[0027] The storage unit 222 may store, for example, various information and programs. Examples of the storage unit 222 may be a memory, a solid state drive, a hard disk drive, etc. Note that the storage unit 222 may be, for example, a storage area or a server on a cloud.

[0028] The display unit 223 is, for example, a display capable of displaying various characters, symbols, images, etc. In the present disclosure, the display unit 223 may also be a concept including one or more "light-emitting units" such as light-emitting diodes or light-emitting lamps.

[0029] The speaker unit 224 may be, for example, a speaker that outputs various sounds and voices.

[0030] The acquisition unit 211 acquires pressure information from each of one or more pressure sensors 100, for example, via the communication unit 221. That is, the acquisition unit 211 acquires pressure information including identification information from each of one or more pressure sensors 100, for example.

[0031] Based on the pressure information acquired by the acquisition unit 211, the identification unit 212 identifies the pressure sensor 100 that measured a pressure equal to or greater than the first threshold value among the multiple pressures. That is, the identification unit 212 determines whether the pressure based on the pressure information generated by each of one or more pressure sensors 100, i.e., whether each pressure, is equal to or greater than the first threshold. The identification unit 212 identifies the pressure sensor 100 that measured the pressure that is equal to or greater than the first threshold, based on the pressure information (identification information).

[0032] For example, when there is a plurality of pieces of pressure information, the first threshold value may be calculated by calculating the average (or median) of the pressures based on the plurality of pieces of pressure information, and multiplying the average (or median) by a predetermined percentage (first predetermined percentage), i.e., a pressure value that is a predetermined percentage higher than the average (or median). Alternatively, the identification unit 212 may calculate the average pressure of the pressures measured by each of the plurality of pressure sensors 100 based on the pressure information, set a pressure that is higher than the average pressure by a first pressure value as the first threshold, and identify the pressure sensor 100 that measured a pressure that is equal to or higher than the first threshold. The predetermined percentage and the first pressure value here may be various values ​​(for example, preset values, appropriately set values, etc.). Alternatively, the first threshold value may be, for example, a pressure value per unit area calculated based on the weight of the above-mentioned member (member carried in hand) multiplied by a predetermined ratio (second predetermined ratio), i.e., a pressure value that is a predetermined ratio larger than the pressure per unit area. The predetermined ratio here may be various values ​​(for example, a preset value, a value set as appropriate, etc.). Alternatively, the first threshold value is not limited to the example described above, and may be a pressure value that is set by various methods.

[0033] The identification unit 212 may, for example, regard the pressure (load) measured on a pair of gloves 300 (one pair of gloves) based on the identification information as the pressure (load) applied to the person wearing the gloves 301, and calculate the average value of the pressure (load) per person.

[0034] Furthermore, the threshold is not limited to the above-mentioned first threshold, and multiple thresholds may be set. When multiple thresholds are set, two thresholds, a first threshold and a second threshold (first threshold > second threshold), may be set. In this case, the identifying unit 212 may identify, based on the pressure information, the pressure sensor 100 that measures a pressure that is less than the first threshold value and equal to or greater than a second threshold value that is lower than the first threshold value, among the multiple pressures.

[0035] The second threshold can be set in the same manner as the first threshold. That is, for example, when there is a plurality of pieces of pressure information, the second threshold value may be calculated by calculating the average (or median) of the pressures based on the plurality of pieces of pressure information, and multiplying the average (or median) by a predetermined ratio (third predetermined ratio (first predetermined ratio > third predetermined ratio)), i.e., a pressure value that is a predetermined ratio greater than the average (or median). Furthermore, the identification unit 212 may calculate the average pressure of the pressures measured by each of the plurality of pressure sensors 100 based on the pressure information, and when setting a second pressure value that is lower than the first pressure value, may set a pressure that is two pressure values ​​higher than the average pressure as the second threshold value, and identify the pressure sensor 100 that measured a pressure that is equal to or greater than the second threshold. The predetermined ratio and the second pressure value (first pressure value > second pressure value) here may be various values ​​(for example, preset values, appropriately set values, etc.). Alternatively, the second threshold value may be, for example, a pressure value per unit area calculated based on the weight of the above-mentioned member (member carried in hand) multiplied by a predetermined ratio (fourth predetermined ratio (second predetermined ratio > fourth predetermined ratio)), i.e., a pressure value that is a predetermined ratio greater than the pressure per unit area. The predetermined ratio here may be various values ​​(for example, a preset value, a value that is set as appropriate, etc.). Alternatively, the second threshold value is not limited to the above example, and may be a pressure value that is set by various methods.

[0036] The alarm control unit 213 controls the output unit to output an alarm in a first manner that identifies the pressure sensor 100 identified by the identification unit 212. In other words, the alarm control unit 213 controls to output an alarm in a first manner that can identify the pressure sensor that measured a pressure equal to or greater than the first threshold value. The alarm control unit 213 may control the display unit 223 to display, as an alarm output, characters, symbols, and images indicating the alarm, and characters, symbols, and images identifying the pressure sensor that measured a pressure equal to or greater than the first threshold (or to emit light indicating the alarm). The alarm control unit 213 may control the speaker unit 224 to output, as an alarm output, a sound and voice indicating the alarm, and a sound and voice identifying the pressure sensor that measured a pressure equal to or greater than the first threshold. Furthermore, the alarm control unit 213 may control the communication unit 221 to transmit alarm information (first alarm information) to a pressure sensor that measures a pressure equal to or greater than a first threshold as an alarm output. That is, the alarm control unit 213 may transmit alarm information to a pressure sensor 100 identified by the identification unit 212, and control an alarm output unit disposed in that pressure sensor 100 to output a predetermined alarm in a first manner. In this case, the pressure sensor 100 (sensor control unit 120) that has received the alarm information may control the sensor speaker unit 133 (alarm output unit) to output sounds and voices indicating an alarm based on the alarm information, or may control the sensor display unit 132 (alarm output unit) to display letters, symbols, and images indicating an alarm (or to emit light indicating an alarm). Furthermore, the alarm control unit 213 may control the storage unit 222 to store a history (log) of alarm outputs as alarm outputs. The first aspect will be described later.

[0037] After controlling to output an alarm as described above, the alarm control unit 213 may control to stop the alarm when the pressure measured by the pressure sensor 100 identified by the identification unit 212 becomes less than the first threshold. In other words, the alarm control unit 213 may control the output unit (alarm output unit) to stop the alarm when the pressure sensor 100 that measured a pressure equal to or greater than the first threshold subsequently measures a pressure that becomes less than the first threshold.

[0038] The alarm control unit 213 may perform control to output an alarm in a second manner different from the first manner, which identifies the pressure sensor 100 identified by the identification unit 212. In other words, the alarm control unit 213 performs control to output an alarm in the second manner, which can identify the pressure sensor that measured a pressure that is less than the first threshold and equal to or greater than the second threshold. The alarm control unit 213 may control the display unit 223 to display, as an alarm output, characters, symbols, and images indicating the alarm, and characters, symbols, and images identifying the pressure sensor that measured a pressure that is less than the first threshold value and greater than or equal to the second threshold value (or to emit light indicating the alarm). The alarm control unit 213 may control the speaker unit 224 to output, as an alarm output, a sound and voice indicating an alarm and a sound and voice identifying a pressure sensor that measured a pressure that is less than the first threshold value and greater than or equal to the second threshold value. The alarm control unit 213 may also control the communication unit 221 to transmit alarm information (second alarm information) to a pressure sensor that measures a pressure that is less than the first threshold and greater than or equal to the second threshold as an alarm output. That is, the alarm control unit 213 may transmit alarm information to a pressure sensor 100 identified by the identification unit 212, and control the alarm output unit disposed in that pressure sensor 100 to output a predetermined alarm in a second manner different from the first manner. In this case, the pressure sensor 100 (sensor control unit 120) that has received the alarm information may control the sensor speaker unit 133 (alarm output unit) to output sound and voice indicating an alarm based on the alarm information, or may control the sensor display unit 132 (alarm output unit) to display letters, symbols, and images indicating an alarm (or to emit light indicating an alarm). Furthermore, when an alarm is output, the alarm control unit 213 may control the storage unit 222 to store a history (log) of the alarm output.

[0039] Here, the above-mentioned first mode may be, for example, a preset mode indicating an alarm. The first alarm information may be information for performing output in the first mode. The second manner may be, for example, a preset manner indicating a caution, and may be a caution manner different from the warning manner. The second warning information may be information for performing output in the second manner. For example, when displaying an alarm on the display unit 223 (and the sensor display unit 132), the alarm control unit 213 may control the display (light emission) to mainly use red in the first mode, and to mainly use yellow in the second mode. Note that the colors are not limited to red and yellow. For example, when outputting an alarm from the speaker unit 224 (sensor speaker unit 133), the alarm control unit 213 may control the speaker unit 224 to output a relatively louder, more shrill sound and alarm voice in the first mode, and to output a relatively quieter, more shrill sound and warning voice in the second mode. Furthermore, for example, when storing a history (log) of alarm output, the alarm control unit 213 may perform control so that in a first mode, the alarm and the recorded history are stored, and in a second mode, the warning and the recorded history are stored.

[0040] After controlling to output an alarm in the second mode as described above, the alarm control unit 213 may control to stop the alarm when the pressure measured by the pressure sensor 100 identified by the identification unit 212 becomes less than the second threshold. In other words, the alarm control unit 213 may control the output unit (alarm output unit) to stop the alarm when the pressure sensor 100 that measured a pressure equal to or greater than the second threshold subsequently measures a pressure that becomes less than the second threshold.

[0041] After controlling to output an alarm in the second manner as described above, the alarm control unit 213 may control the output unit to output an alarm in the first manner that identifies the pressure sensor 100 identified by the identification unit 212 when the pressure measured by the pressure sensor 100 identified by the identification unit 212 becomes equal to or greater than the first threshold. In other words, the alarm control unit 213 controls to output an alarm in the first manner that can identify the pressure sensor that measured the pressure that becomes equal to or greater than the first threshold.

[0042] (B) When the information processing device 200 is mounted inside the pressure-sensitive sensor 100 Next, a case where the information processing device 200 is installed inside the pressure-sensitive sensor 100 will be described (see FIG. 5). FIG. 5 is a second diagram for explaining the load warning device 1 according to one embodiment.

[0043] The information processing device 200 may be provided in each of the multiple pressure-sensitive sensors 100, or may be provided in some of the multiple pressure-sensitive sensors 100. In this case, the information processing device 200 may be provided, for example, as a single unit (housed in a single housing 140) on the back of the glove 301 together with the sensor communication unit 131, sensor control unit 120, sensor display unit 132, and sensor speaker unit 133, as in the case shown in Fig. 3(B). Note that the communication unit 221, display unit 223, and speaker unit 224 of the information processing device 200 may be configured as having the same functions (each as a single functional block) as the sensor communication unit 131, sensor display unit 132, and sensor speaker unit 133 of the pressure-sensitive sensor 100, respectively.

[0044] When an information processing device 200 is provided for each of the multiple pressure sensors 100, one of the multiple pressure sensors 100 may function as a parent device, and the other pressure sensors 100 may function as child devices. In this case, when the pressure sensors 100 are provided in gloves 301, one of the multiple gloves 301 may function as a parent glove 301a, and the other gloves of the multiple gloves 301 different from the parent glove 301a may function as child glove 301b. The pressure sensor 100 serving as the master may be configured to realize the functions of the information processing device 200 (e.g., the control unit 210, etc.) described above by being set as the master. That is, the pressure sensor 100 disposed in the master glove 301a may realize the functions of the acquisition unit 211, the identification unit 212, and the alarm control unit 213 by the information processing device 200, for example. Furthermore, the pressure sensor 100 serving as the slave device may not implement the functions of the above-described information processing device 200. In other words, the pressure sensor 100 disposed in the slave glove 301b may not implement the functions of the acquisition unit 211, the identification unit 212, and the alarm control unit 213 of the information processing device 200, for example. The information processing device 200 here may have the same functions as the information processing device 200 described above in (A).

[0045] Furthermore, when an information processing device 200 is provided in some (for example, one) of the multiple pressure sensors 100, the pressure sensor 100 in which the information processing device 200 is provided may function as a parent device, and the pressure sensor 100 in which the information processing device 200 is not provided may function as a child device. That is, one of the multiple gloves 301 (a glove having a pressure sensor 100 including the information processing device 200) may function as a parent glove 301a, and another glove of the multiple gloves 301 different from the parent glove 301a (a glove having a pressure sensor 100 not including the information processing device 200) may function as a child glove 301b. The pressure sensor 100 provided in the parent glove 301a realizes the functions of the acquisition unit 211, the identification unit 212, and the alarm control unit 213 by the information processing device 200, for example. The information processing device 200 here may have the same functions as the information processing device 200 described above in (A).

[0046] [Load alarm method] Next, a load warning method according to an embodiment will be described. FIG. 6 is a flowchart illustrating a load warning method according to an embodiment.

[0047] In step ST101, the acquisition unit 211 acquires pressure information including identification information from each of one or more pressure-sensitive sensors 100, for example. In this case, each of the multiple pressure sensors 100 may measure pressure, load, etc. using the sensor unit 110 to generate pressure information, and the sensor communication unit 131 may include the device's own identification information in the pressure information and transmit it to the information processing device 200 (parent device).

[0048] In step ST102, the identification unit 212 identifies the pressure sensor 100 that measured a pressure equal to or greater than a first threshold value among the multiple pressures based on the pressure information acquired in step ST101. In this case, the identification unit 212 may calculate an average pressure of the pressures measured by each of the multiple pressure sensors 100 based on the pressure information, set a pressure that is one pressure value higher than the average pressure as the first threshold value, and identify the pressure sensor 100 that measured a pressure equal to or greater than the first threshold value (step ST102-1). Furthermore, the identification unit 212 may identify, based on the pressure information, a pressure sensor 100 that measures a pressure from among the multiple pressures that is less than the first threshold value and equal to or greater than a second threshold value that is lower than the first threshold value. In this case, the identification unit 212 may calculate, based on the pressure information, an average pressure of the pressures measured by each of the multiple pressure sensors 100, and when setting a second pressure value that is lower than the first pressure value, set a pressure that is higher than the average pressure by a second pressure value as the second threshold value, and identify the pressure sensor 100 that measured a pressure that is equal to or greater than the second threshold value (step ST102-2).

[0049] In step ST103, the alarm control unit 213 controls the output unit to output an alarm in a first manner that identifies the pressure sensor 100 identified in step ST102 (step ST102-1). That is, the alarm control unit 213 controls to output an alarm in a first manner that can identify the pressure sensor that measured a pressure equal to or greater than the first threshold value. The alarm control unit 213 may also perform control to identify the pressure-sensitive sensor 100 specified in step ST102 (step ST102-2) and output an alarm in a second manner different from the first manner. When outputting an alarm in the first or second manner described above, the alarm control unit 213 may transmit alarm information to the pressure sensor 100 identified in step ST102 (step ST102-1 or step ST102-2), and control the alarm output unit arranged in the pressure sensor 100 to output a different predetermined alarm in the first and second manners.

[0050] After controlling to output an alarm as described above, the alarm control unit 213 may control to stop the alarm if the pressure measured by the pressure sensor 100 identified in step ST102 (step ST102-1) becomes less than the first threshold value. In addition, after controlling the alarm to be output in the second manner as described above, the alarm control unit 213 may control the alarm to be stopped when the pressure measured by the pressure sensor 100 identified in step ST102 (step ST102-2) becomes less than the second threshold value. In addition, after controlling to output an alarm in the first or second manner as described above, the alarm control unit 213 may control to stop the alarm when the pressure measured by the pressure sensor 100 identified in step ST102 (step ST102-1 and step ST102-2) becomes less than the second threshold value.

[0051] Next, a more specific example of a load warning method will be described.

[0052] (1) The pressure sensor 100 and the information processing device 200 are powered on. (2) Wireless pairing of the communication unit 221 and the sensor communication unit 131 is performed. (3) The parent device (information processing device 200) transmits a transmission instruction for the pressure (load) measured by the sensor unit 110 to the child device (pressure sensor 100). (4) Upon receiving the transmission instruction, the child device (pressure sensor 100) transmits pressure information (load information) related to the pressure measured by the sensor unit 110 to the parent device (information processing device 200). (5) The parent device (information processing device 200) calculates the pressure (load) based on the received pressure information (load information), i.e., the average value of the pressure (load) measured by the multiple pressure sensors 100, and identifies the one or more pressure sensors 100. (6) The parent device (information processing device 200) transmits a warning output instruction (alarm instruction) (warning information) to the identified pressure sensor 100. When the information processing device 200 is placed in the glove 301 (parent device glove case), if the parent glove measures a pressure (load) that is 2 kg (threshold) or more higher than the average value, the parent device does not transmit a warning output instruction to the parent device, but instead outputs a warning (alarm) as described below. (7) When the slave unit (pressure sensor 100) receives the warning output instruction, it outputs a warning (alarm). The warning (alarm) allows the type and volume of sound (audio) to be set, and by dividing the type and volume of sound (audio) according to the calculation result of the average value in (5) above and the threshold values ​​(first threshold, second threshold, etc.), it becomes possible to set optimal settings for various situations. (8) Repeat steps (3) to (7) above. (9) When the pressure sensor 100 and the information processing device 200 are powered off, the process ends.

[0053] [Variations] Next, a modified example will be described.

[0054] In the above-described embodiment, an example has been described in which the pressure-sensitive sensor 100 (and the information processing device 200) is disposed in the glove 301. The present embodiment is not limited to this example, and the pressure-sensitive sensor 100 (and the information processing device 200) may not be disposed in the glove 301. As an example, the pressure-sensitive sensor 100 (and the information processing device 200) may be used to check the balance of loads applied to the contact surface when members of various shapes (for example, complex shapes) are placed on the contact surface.

[0055] [Functions and circuits] Next, the functions and circuits of the information processing device 200 will be described. Each unit of the information processing device 200 may be realized as a function of a computer's arithmetic processing unit, etc. That is, the acquisition unit 211, identification unit 212, and alarm control unit 213 (control unit 210) of the information processing device 200 may be realized as an acquisition function, an identification function, and an alarm control function (control function) by a computer's arithmetic processing unit, etc. The information processing program can cause a computer to realize each of the above-mentioned functions. The information processing program may be recorded on a computer-readable non-transitory storage medium, such as a memory, a solid-state drive, a hard disk drive, or an optical disk. The storage medium may also be referred to as a non-transitory computer-readable medium that stores the information processing program. The information processing program may also be transmitted online. Furthermore, as described above, each unit of the information processing device 200 may be realized by an arithmetic processing unit of a computer or the like. The arithmetic processing unit or the like is configured by, for example, an integrated circuit or the like. Therefore, each unit of the information processing device 200 may be realized as a circuit that constitutes the arithmetic processing unit or the like. In other words, the acquisition unit 211, identification unit 212, and alarm control unit 213 (control unit 210) of the information processing device 200 may be realized as an acquisition circuit, identification circuit, and alarm control circuit (control circuit) that constitute the arithmetic processing unit of a computer or the like. The communication unit 221, the storage unit 222, the display unit 223, and the speaker unit 224 (output unit) of the information processing device 200 may be realized as, for example, a communication function, a storage function, a display function, and a speaker function (output function) including the functions of an arithmetic processing device or the like. The communication unit 221, the storage unit 222, the display unit 223, and the speaker unit 224 (output unit) of the information processing device 200 may be realized as, for example, a communication circuit, a storage circuit, a display circuit, and a speaker circuit (output circuit) by being configured with an integrated circuit or the like. The communication unit 221, the storage unit 222, the display unit 223, and the speaker unit 224 (output unit) of the information processing device 200 may be realized as, for example, a communication device, a storage device, a display device, and a speaker device (output device) by being configured with a plurality of devices.

[0056] The load warning device 1 can be configured by combining one or any combination of the above-described multiple units. In this disclosure, the term "information" is used, but the term "information" can be replaced with "data" and the term "data" can be replaced with "information."

[0057] [Aspects and Effects of the Present Embodiment] Next, one aspect of this embodiment and the effects of each aspect will be described. Note that each aspect described below is an example at the time of filing, and this embodiment is not limited to the aspects described below. In other words, this embodiment is not limited to the aspects described below, and may be realized by appropriately combining the above-mentioned parts. Furthermore, a lower-level aspect may be able to cite any of the higher-level aspects. The effects described below are merely examples, and the effects of each aspect are not limited to those described below. Each aspect may, for example, achieve at least one of the effects described below.

[0058] (Aspect 1) One embodiment of the load warning device comprises a plurality of pressure sensors, each including a sensor unit that measures pressure and generates pressure information, and a sensor communication unit that transmits the pressure information together with the device's own identification information; an acquisition unit that acquires pressure information including the identification information from each of the plurality of pressure sensors; an identification unit that identifies, based on the pressure information acquired by the acquisition unit, a pressure sensor that measures a pressure among the plurality of pressures that is equal to or greater than a first threshold value; and an alarm control unit that controls the pressure sensor identified by the identification unit to output an alarm in a first manner that identifies the pressure sensor identified. This allows the load warning device to output a warning about the load. When a single component is being carried by multiple workers, if the pressure reaches or exceeds the first threshold and the load warning device outputs a warning, the load warning device can increase the number of workers carrying the component or change the positions of the workers, thereby preventing the burden from being placed on only some of the multiple workers. In other words, the load warning device can ensure that the transportation work when multiple workers are carrying a single component is in an appropriate state.

[0059] In the past, when multiple people carried a heavy object, the center of gravity could shift due to the tilt of the object during transport, causing the load to be concentrated on one person. Until now, there was no way to measure such a load concentrated on one person. Furthermore, when working together, even if only one person is under a heavy load, if they do not realize this, they may feel that they "do not want to cause trouble to those around them" and continue to carry the object even if it means pushing themselves too hard. As a result, workers may be unable to withstand the load and lose their balance, which could lead to an accident. For this reason, a system was needed that would allow all co-workers to be aware of the load situation. In this embodiment, the load warning device outputs a warning to notify all workers at the work site in real time that someone is carrying an excessive load while transporting components (a condition in which it is impossible to transport components). In response to this warning, the load warning device can suspend work and change the transport system (response) to avoid the excessive load, thereby ensuring work safety.

[0060] (Aspect 2) In one aspect of the load warning device, the warning control unit can perform control to stop the warning when the pressure measured by the pressure sensor identified by the identification unit becomes less than the first threshold value. The load warning device can stop the warning when the pressure measured by the pressure sensor becomes equal to or greater than a first threshold and then becomes less than the first threshold. Furthermore, when the pressure is less than the first threshold, the load warning device can estimate that the number of workers transporting one component is appropriate and that the positions of the workers relative to the component are appropriate. In other words, the load warning device can put the transporting work when multiple workers are transporting one component into an appropriate state.

[0061] (Aspect 3) In one embodiment of the load warning device, the identification unit identifies, based on the pressure information, a pressure sensor among multiple pressures that measures a pressure that is less than a first threshold value and greater than or equal to a second threshold value that is lower than the first threshold value, and the warning control unit may control the device to output a warning in a second mode different from the first mode, in which the pressure sensor identified by the identification unit is known. For example, the load warning device can output a warning as a mode of warning output (second mode) when the pressure is equal to or greater than the second threshold and less than the first threshold. This allows the load warning device to put a transportation operation in an appropriate state when multiple workers are carrying one member, similar to the mode described above.

[0062] As a specific example, the load warning device may set the first threshold to 10 kg and the second threshold to 5 kg, output a warning when the pressure (load) measured by the sensor unit is equal to or greater than the second threshold and less than the first threshold, and output a warning when the pressure (load) measured by the sensor unit is equal to or greater than the first threshold. Note that the values ​​of the first threshold and the second threshold are not limited to the above-mentioned values.

[0063] (Aspect 4) In one embodiment of the load warning device, the identification unit may calculate an average pressure of the pressures measured by each of the multiple pressure sensors based on the pressure information, set a pressure that is a first pressure value higher than the average pressure as a first threshold, and identify the pressure sensor that measured a pressure that is equal to or greater than the first threshold. As a result, when multiple workers are carrying one component, the load warning device calculates the average pressure by averaging the pressure applied to each worker, thereby preventing the burden from being placed on only some of the workers. In other words, the load warning device can ensure that the transportation work when multiple workers are carrying one component is in an appropriate state.

[0064] (Aspect 5) In one embodiment of the load warning device, the identification unit calculates the average pressure of the pressures measured by each of the multiple pressure sensors based on the pressure information, and when setting a second pressure value lower than the first pressure value, sets a pressure that is second pressure value higher than the average pressure as a second threshold, and identifies the pressure sensor that measured a pressure that is equal to or higher than the second threshold. As a result, when multiple workers are carrying one component, the load warning device calculates the average pressure by averaging the pressure applied to each worker, thereby preventing the burden from being placed on only some of the workers. In other words, the load warning device can ensure that the transportation work when multiple workers are carrying one component is in an appropriate state.

[0065] (Aspect 6) In one aspect of the load warning device, the warning control unit may perform control to stop the warning when the pressure measured by the pressure sensor identified by the identification unit becomes less than a second threshold value. As a result, when the pressure is less than the first threshold, the load warning device can estimate that the number of workers transporting one component is appropriate and that the positions of the workers relative to the component are appropriate. In other words, the load warning device can put the transporting work when multiple workers are carrying one component into an appropriate state.

[0066] (Aspect 7) In one embodiment of the load warning device, the warning control unit may transmit warning information to a pressure sensor identified by the identification unit, and control the warning output unit arranged in the pressure sensor to output a predetermined warning that differs between the first embodiment and the second embodiment. This allows the load warning device to output a warning in a first manner and a second manner, depending on whether some of the workers among a plurality of workers are under a heavier load or whether some of the workers are under a heavier load.

[0067] (Aspect 8) In one embodiment of the load warning device, a plurality of pressure sensors are arranged in each of a pair of left and right gloves, there are a plurality of gloves, one of the plurality of gloves functions as a parent glove, and the other of the plurality of gloves different from the parent glove functions as a child glove, and the parent glove may realize the functions of an acquisition unit, an identification unit, and an alarm control unit. When multiple workers carry a single component, each worker often carries the component by hand. In this case, by equipping the gloves worn by the workers with pressure sensors, the load warning device can measure the pressure applied to each of the multiple workers. Furthermore, by providing a master unit and a slave unit in multiple gloves, the system configuration of the load warning device can be made relatively smaller compared to when an information processing device is provided outside the gloves. This reduces the amount of equipment that workers need to carry when carrying the component, making the load warning device easier to use. The load warning device can also calculate the average value of the pressure measured on a pair of gloves (one set of gloves) and output an alarm for each set of gloves (one set of gloves). That is, the load warning device can output an alarm based on the load borne by one person. In this case, the load warning device can, for example, interpret the pressure (load) measured on a pair of gloves (one set of gloves) based on the identification information as the pressure (load) applied to the person wearing the gloves, and calculate the average value of the pressure (load) per person. Furthermore, the load warning device can identify the parent and child gloves whose pressures are greater than the average by a threshold or more, and output an alarm based on the identification result.

[0068] (Aspect 9) In one embodiment of the load warning method, a computer capable of communicating with each of a plurality of pressure sensors, which includes a sensor unit that measures pressure and generates pressure information, and a sensor communication unit that includes its own device's identification information in the pressure information and transmits it, performs an acquisition step of acquiring pressure information including the identification information from each of the plurality of pressure sensors, an identification step of identifying a pressure sensor among the plurality of pressures that measures a pressure that is equal to or greater than a first threshold value based on the pressure information acquired by the acquisition step, and an alarm control step of controlling the pressure sensor identified by the identification step to output an alarm in a first manner that identifies the pressure sensor. As a result, the load warning method can achieve the same effects as the load warning device of the above-described aspect.

[0069] (Aspect 10) One embodiment of the load warning program implements, in a computer capable of communicating with multiple pressure sensors, an acquisition function that acquires pressure information including identification information from each of the multiple pressure sensors, a determination function that identifies a pressure sensor among the multiple pressures that measures a pressure that is equal to or greater than a first threshold value based on the pressure information acquired by the acquisition function, and an alarm control function that controls the pressure sensor identified by the determination function to output an alarm in a first embodiment that identifies the pressure sensor identified by the determination function. As a result, the load warning program can achieve the same effect as the load warning device of the above-described aspect. [Explanation of symbols]

[0070] 1 Load alarm device 100 Pressure Sensor 110 Sensor unit 120 Sensor control unit 131 Sensor communication unit 132 Sensor display unit (alarm output unit) 133 Sensor speaker unit (alarm output unit) 200 Information processing device 210 Control Unit 211 Acquisition Department 212 Specific section 213 Alarm control section 221 Communication unit (output unit) 222 Memory unit (output unit) 223 Display unit (output unit) 224 Speaker section 300 Pair of gloves 301 Gloves 301a Parent Gloves 301b Handset gloves

Claims

1. a plurality of pressure-sensitive sensors, each including a sensor unit that measures pressure and generates pressure information, and a sensor communication unit that includes identification information of the device itself in the pressure information and transmits the information; an acquisition unit that acquires pressure information including identification information from each of the plurality of pressure sensors; an identification unit that identifies a pressure sensor that measured a pressure equal to or greater than a first threshold value among the plurality of pressures based on the pressure information acquired by the acquisition unit; an alarm control unit that controls the pressure sensor identified by the identification unit to output an alarm in a first mode that identifies the pressure sensor; A load warning device comprising:

2. The alarm control unit controls to stop the alarm when the pressure measured by the pressure sensor identified by the identification unit is less than a first threshold value. The load warning device according to claim 1 .

3. the identifying unit identifies, based on the pressure information, a pressure sensor that measures a pressure that is less than a first threshold value and equal to or greater than a second threshold value that is lower than the first threshold value, among the plurality of pressures; The alarm control unit controls the pressure sensor identified by the identification unit to output an alarm in a second manner different from the first manner. The load warning device according to claim 1 .

4. The identification unit calculates an average pressure of pressures measured by each of the plurality of pressure-sensitive sensors based on the pressure information, sets a pressure that is higher than the average pressure by a first pressure value as a first threshold, and identifies the pressure-sensitive sensor that measured a pressure that is equal to or higher than the first threshold. The load warning device according to claim 3.

5. The identification unit calculates an average pressure of pressures measured by each of the plurality of pressure-sensitive sensors based on the pressure information, and when setting a second pressure value lower than the first pressure value, sets a pressure higher than the average pressure by a second pressure value as a second threshold, and identifies the pressure-sensitive sensor that measured a pressure equal to or higher than the second threshold.

5. The load warning device according to claim 4.

6. The alarm control unit controls to stop the alarm when the pressure measured by the pressure sensor identified by the identification unit becomes less than a second threshold value. The load warning device according to claim 3.

7. The alarm control unit transmits alarm information to the pressure sensor identified by the identification unit, and controls the alarm output unit disposed in the pressure sensor to output different predetermined alarms in the first mode and the second mode. The load warning device according to claim 3.

8. The pressure sensors are arranged in each of a pair of left and right gloves, There are a plurality of gloves, One of the plurality of gloves functions as a parent glove, and the other of the plurality of gloves different from the parent glove functions as a child glove; The parent glove realizes the functions of the acquisition unit, the identification unit, and the alarm control unit. The load warning device according to claim 1 .

9. a computer capable of communicating with each of a plurality of pressure-sensitive sensors, the computer including a sensor unit that measures pressure and generates pressure information, and a sensor communication unit that includes its own device's identification information in the pressure information and transmits it; an acquisition step of acquiring pressure information including identification information from each of the plurality of pressure sensors; a step of identifying a pressure sensor that measured a pressure equal to or greater than a first threshold value among the plurality of pressures based on the pressure information acquired by the acquisition step; an alarm control step of controlling the pressure-sensitive sensor identified by the identifying step to output an alarm in a first mode that identifies the pressure-sensitive sensor; A load warning method is performed.

10. a sensor unit that measures pressure and generates pressure information; and a sensor communication unit that includes the pressure information and transmits the pressure information together with its own device identification information. an acquisition function for acquiring pressure information including identification information from each of the plurality of pressure sensors; a specifying function for specifying a pressure sensor that measures a pressure equal to or greater than a first threshold value among the plurality of pressures based on the pressure information acquired by the acquiring function; an alarm control function that controls the pressure-sensitive sensor identified by the identification function to output an alarm in a first mode that identifies the pressure-sensitive sensor; A load warning program that realizes this.

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