JP7002418B2 - Equipment management system - Google Patents

Description

The present invention relates to a material / equipment management system for managing materials / equipment at a construction site.

Conventionally, various materials and equipment management systems for managing materials and equipment at construction sites have been known. Japanese Unexamined Patent Publication No. 2013-54682 describes a management system for equipment used at a construction site. This management system manages equipment such as aerial work platforms and mobile cranes used at construction sites. Slave equipment is installed on each of the aerial platform of the aerial work platform and the jib of the mobile crane, and each slave station device can communicate with the master station device connected to the personal computer for equipment management. Each slave station device is equipped with a 3-axis acceleration sensor that detects the operating time of the device, and the personal computer described above executes determination of the operating status of the device based on the operating time.

Japanese Unexamined Patent Publication No. 2017-171480 describes a sensor device used for grasping the operating state of an aerial work platform. This sensor device has a vibration sensor that is installed on a workbench that moves up and down with respect to the aerial work platform body to measure acceleration, and a control unit that determines whether or not the aerial work platform is operating. Be prepared. The control unit releases the sleep state when the acceleration measured by the vibration sensor is equal to or higher than the first threshold value, and when the acceleration becomes higher than the second threshold value a predetermined number of times within a predetermined first time. It is determined that the vehicle is in an operating state, and when the state in which the acceleration is less than the first threshold value continues for a predetermined second time or more, it is determined that the acceleration is in a non-operating state.

Japanese Unexamined Patent Publication No. 2013-54682 Japanese Unexamined Patent Publication No. 2017-171480

As described above, there is room for improvement in the accuracy of the acceleration sensor that measures the acceleration in the method of grasping the operating status of materials and equipment such as aerial work platforms using the measured acceleration. The accelerometer detects the operation of the equipment by detecting the shaking of the equipment. For this reason, even though the materials and equipment are not actually in operation, the operation of the materials and equipment may be erroneously detected when the materials and equipment shake. Therefore, when an acceleration sensor is used, there is a problem that erroneous detection occurs and it is difficult to accurately grasp the operating status of materials and equipment.

An object of the present invention is to provide a material / equipment management system capable of accurately grasping the operating status of material / equipment.

The material / equipment management system according to the present invention is a material / equipment management system that manages materials / equipment that operates by changing the distance between one part and another part, and is a material / equipment management system that manages one part and another part. It is provided with a sensor that detects whether or not the equipment is operating by detecting the distance between the two, and a display control unit that displays the result detected by the sensor.

This material / equipment management system manages the material / equipment that operates by changing the distance between one part and the other part. Then, in the material / equipment management system, the sensor detects the distance between one part of the material / equipment and the other part, and detects whether or not the material / equipment is operating from the detected distance. Therefore, since the sensor detects whether or not the material and equipment are in operation based on the distance between one part constituting the material and equipment and the other part, it is possible to suppress erroneous detection of whether or not the material and equipment are in operation. That is, by detecting the presence or absence of operation from the distance between one part and the other part, it is possible to avoid erroneous detection of operation even if shaking or the like occurs in the non-operating materials and equipment. Therefore, it is possible to accurately grasp the operating status of materials and equipment. Further, since the material / equipment management system is provided with a display control unit that displays the result of the presence / absence of operation of the material / equipment detected by the sensor, it is possible to easily grasp the accurate operation status of the material / equipment. Therefore, it is possible to manage materials and equipment with high accuracy.

Further, the materials and equipment may be an aerial work platform. In general, a plurality of aerial work platforms are often used at a construction site, and it may be difficult to manage a plurality of aerial work platforms. Specifically, although many aerial work platforms have been introduced at the construction site, some aerial work platforms operate frequently and some do not operate very often, so the aerial work platforms are wasted at the construction site. It may have been introduced in. On the other hand, in the equipment management system, the sensor detects whether or not the aerial work platform is operating from the distance between one part of the aerial work platform and the other part, so that each aerial work platform operates. You can grasp the frequency. Therefore, it is possible to evacuate the aerial work platforms that are not in operation very often from the construction site and introduce the minimum necessary aerial work platforms, so that the management of materials and equipment including the aerial work platforms is more accurate. It can be carried out.

Further, the sensor includes a magnet fixed to one part and a detection unit fixed to the other part and detecting the magnetic force from the magnet, and the detection unit responds to the magnetic force from the detected magnet. It may be detected whether or not the materials and equipment are in operation. In this case, the magnet is fixed to one part of the material and equipment, the detection unit that detects the magnetic force from the magnet is fixed to the other part of the material and equipment, and the presence or absence of operation of the material and equipment is determined according to the magnetic force detected by the detection unit. Detect. Therefore, since the detection unit fixed to the other part of the material and equipment detects the change in the magnetic force from the magnet fixed to one part of the material and equipment, the sensor detects whether the material and equipment are operating. It is possible to detect the presence or absence of operation with higher accuracy. That is, even if vibration or the like occurs in the materials and equipment, the operating state of the materials and equipment is not detected unless the detection unit detects the change in the magnetic force, so that erroneous detection of the operation of the materials and equipment can be suppressed more reliably. Therefore, it is possible to grasp whether or not the materials and equipment are in operation with higher accuracy.

According to the present invention, it is possible to accurately grasp the operating status of materials and equipment.

FIG. 1 is a block diagram showing an example of a material / equipment management system according to an embodiment. FIG. 2 is a diagram schematically showing a sensor and a receiver of the material / equipment management system of FIG. FIG. 3 is a perspective view of a scissors-type aerial work platform showing an example of materials and equipment managed by the material and equipment management system of FIG. 4 (a) and 4 (b) are diagrams showing an example of a sensor of the material / equipment management system of FIG. FIG. 5 is a perspective view showing an example of the arrangement of the receiver of FIG. FIG. 6 is an enlarged perspective view of the receiver of FIG. FIG. 7 is a Gantt chart showing the usage status of each aerial work platform displayed by the material / equipment management system of FIG. FIG. 8 is a bar graph showing the usage status of each aerial work platform displayed by the material / equipment management system of FIG. FIG. 9 is a line graph showing the usage status of each aerial work platform displayed by the material / equipment management system of FIG. FIG. 10 is a perspective view of a standing horse showing another example of materials and equipment managed by the material and equipment management system of FIG.

Hereinafter, embodiments of the material / equipment management system according to the present invention will be described in detail with reference to the drawings. In the drawings, the same or corresponding elements are designated by the same reference numerals, and duplicate description will be omitted as appropriate. In addition, the drawings are partially simplified or exaggerated for ease of understanding, and the dimensional ratios and the like are not limited to those described in the drawings.

At the construction site, it is important to properly manage materials and equipment including aerial work platforms. In the present specification, "management" means to let another person grasp the position or state of the material and equipment. For example, the operating status of the material and equipment is displayed on the screen to display the operating status of the material and equipment. Includes getting people to understand. The "operating status of materials and equipment" indicates whether the materials and equipment are operating (whether they are in operation) or whether they are not operating (whether they are in a non-operating state). At the construction site, the information on materials and equipment is not sufficiently converted into data, so for example, the materials and equipment that are not in use are left in the warehouse, etc., and the materials and equipment cannot be utilized. be.

The material / equipment management system according to this embodiment can improve the efficiency of site management and material / equipment management at the construction site. Specifically, it visualizes (visualizes) the operating status of the material / equipment. It is possible. That is, in the material / equipment management system according to the present embodiment, it is possible to grasp at a glance how much the material / equipment is used. For example, it is possible to easily grasp whether or not the materials and equipment are left unnecessarily, which contributes to the reduction of loss of materials and equipment and the reduction of costs.

FIG. 1 is a block diagram showing a material / equipment management system 1 according to the present embodiment. FIG. 2 is a diagram schematically showing an arrangement example of the material / equipment management system 1. As shown in FIGS. 1 and 2, the material / equipment management system 1 controls the material / equipment operation status detection unit 11 for acquiring the operation status of the material / equipment E at the construction site A and the material / equipment management system 1 in an integrated manner. A unit 20 and a display 30 for displaying the operating status of the equipment E are provided.

The control unit 20 is provided in the server, for example, and is capable of communicating with the display unit 30. The server includes, for example, a processor (for example, a CPU) that executes an operating system and an application program, a main storage unit composed of a ROM and a RAM, an auxiliary storage unit composed of a hard disk or a flash memory, and a network card. Alternatively, it includes a communication control unit composed of a wireless communication module, an input device such as a keyboard or a mouse, and an output device such as a monitor.

Each functional element of the server of the control unit 20 is realized by having a processor or a main storage unit read a predetermined software and execute the software. The processor operates the communication control unit, the input device, or the output device described above according to the software, and reads and writes data in the main storage unit or the auxiliary storage unit. The data or database required for server processing is stored in the main storage or auxiliary storage.

The display 30 includes a display of an information terminal such as a personal computer or a notebook computer, and a display of a mobile terminal such as a mobile phone or a tablet. Further, the display 30 may be a display provided at the construction site A, and in this case, the person M at the construction site A can grasp the operating status of the materials / equipment E at the construction site A.

The control unit 20 has a display control unit 21 that controls various displays on the display unit 30, and the display control unit 21 displays the operating status of a plurality of materials and equipment E arranged at the construction site A on the display unit 30. do. In the present specification, "materials and equipment" refers to materials and equipment used inside and outside the construction site A, for example, work vehicles such as aerial work platforms, bogies, stepladders such as standing horses, forklifts and ladders. Includes. Further, the person M includes a worker, a foreman and an employee.

The material / equipment operation status detection unit 11 has a sensor 12 for detecting a distance D between one part E1 of the material / equipment E and another part E2 different from the one part E1, and a distance acquired by the sensor 12. It includes a plurality of receivers 13 for receiving the information of D, and a router 14 capable of communicating with each of the plurality of receivers 13. The router 14 may be, for example, a Wifi router attached to each floor of the building C of the construction site A, and the type and arrangement mode of the router 14 can be appropriately changed.

For example, the sensor 12 transmits radio waves at regular intervals, and the receiver 13 receives the radio waves transmitted by the sensor 12. As an example, the receiver 13 receives the radio wave from the sensor 12, and the control unit 20 further acquires the radio wave received by the receiver 13 via the router 14. Then, the control unit 20 calculates the operating status of the material / equipment E from the radio wave received by the receiver 13, and the display control unit 21 displays the calculated operating status of the material / equipment E on the display 30.

FIG. 3 is a diagram showing a sensor 12 attached to the aerial work platform H1 of the scissors type (vertical traveling type) which is an example of the material / equipment E. FIG. 4A is a diagram showing the sensor 12 in the aerial work platform H1 in a non-operating state. FIG. 4B is a diagram showing a sensor 12 in which the aerial work platform H1 is in an operating state. As an example, the aerial work platform H1 has a traveling body H10 that constitutes one portion E1 and can travel by a plurality of tire wheels H11, a scissor link mechanism H20 provided on the upper portion of the traveling body H10, and other portions. It is provided with a workbench H30 for worker boarding, which constitutes E2 and is supported by the scissor link mechanism H20.

The sensor 12 is, for example, a magnet sensor and includes a magnet 12a fixed to the traveling body H10 and a detection unit 12b fixed to the workbench H30. As an example, the detection unit 12b is a magnet sensor beacon that detects the magnetic force from the magnet 12a. Since the detection unit 12b is a magnet sensor beacon, the size of the detection unit 12b and the battery consumption of the detection unit 12b can be reduced as compared with other detection units.

The detection unit 12b detects that the workbench H30 has risen with respect to the traveling body H10 by the change of the magnetic force from the magnet 12a. As a specific example, the detection unit 12b has a distance D of one portion E1 and another portion E2 when the workbench H30 does not rise from the traveling body H10 (as an example, when the workbench H30 is located at the lowermost position). Detects whether it is longer than the distance between them. In this case, the detection unit 12b detects that the aerial work platform H1 is in a non-operating state when the workbench H30 is not rising from the traveling body H10, and the workingbench H30 is rising from the traveling body H10. Occasionally, it is detected that the aerial work platform H1 is in an operating state.

The detection unit 12b transmits the operation information indicating whether the aerial work platform H1 is in the operating state or the non-operating state to the receiver 13. The detection unit 12b transmits the identification information (ID information) that can identify the detection unit 12b by, for example, BLT (Bluetooth (registered trademark) Low Energy) together with the operation information at regular time intervals (for example, every 10 seconds).

The sensor 12 may be a proximity sensor other than the magnet sensor, and various sensors can be used as long as it can detect the distance D between one portion E1 and the other portion E2. For example, instead of the sensor 12, an infrared distance sensor may be provided. Further, the detection unit 12b may be a device other than the beacon, and may be any device as long as it can transmit the operation information and the identification information to the receiver 13. Further, in the above example, the magnet 12a is attached to the traveling body H10 and the detection unit 12b is attached to the workbench H30, but the attachment position, attachment method, and attachment mode of the magnet 12a and the detection portion 12b can be appropriately changed. ..

FIG. 5 is a diagram showing an example of a receiver 13 attached to the building C. FIG. 6 is an enlarged view of the receiver 13 of FIG. The receiver 13 is a device that receives radio waves from the detection unit 12b of the sensor 12, and is attached to, for example, each floor of the building C. Therefore, by attaching many receivers 13 to the building C, it is possible to reliably receive the radio waves from the detection unit 12b. Therefore, it is possible to detect the operating status of the equipment E indoors in the building C with higher accuracy.

The receiver 13 is suspended from the ceiling C3 of the building C, for example. The receiver 13 is attached, for example, at a position adjacent to the lighting C1 that illuminates the interior of the building C. Specifically, the power cable 13a of the receiver 13 is connected to the power cable C2 extending together with the cable that supplies power to the lighting C1, and the receiver 13 is attached in a suspended state. By mounting the receiver 13 in a state of being suspended at a position adjacent to the illumination C1 in this way, the receiver 13 can be easily attached to and detached from the building C, and the receiver 13 is not disturbed. Can be. The attached receiver 13 may be provided with waterproof measures or dustproof measures.

Further, with the construction of the building C, the receiver 13 is attached to each floor. At this time, the receiver 13 may be removed from the floor where the construction is completed and the receiver 13 may be attached to the newly constructed floor. In this way, the installation of the plurality of receivers 13 in the building C may be replaced with a new floor each time the floor is constructed. In this case, the number of receivers 13 installed in the building C can be reduced.

As shown in FIG. 7, the display control unit 21 displays, for example, the operating states of the aerial work platforms H1 to H9 on the display 30. As an example, the aerial work platforms H2 to H9 are aerial work platforms arranged at the construction site A, like the aerial work platforms H1. The display control unit 21 displays, for example, the operating ratios and operating hours of the aerial work platforms H1 to H9, and displays the operating time zones in chronological order.

That is, the display control unit 21 displays an operating Gantt chart that collectively shows the operating states of the aerial work platforms H1 to H9. In the example of FIG. 7, the aerial work platforms H1 to H3, H7, and H9 are not in operation during the day, and the aerial work platforms H4 and H8 start operation after 8 o'clock, and the aerial work platforms are in operation. It can be seen that the H6 started operation around 10 o'clock, and the aerial work platform H5 mainly operates in the afternoon.

For example, as shown in FIG. 8, the display control unit 21 displays the operating ratios of the aerial work platforms H1 to H9 in a fixed period on the display 30 as a bar graph. For example, the display control unit 21 displays the operating ratio and operating time of the aerial work platforms H1 to H9 per day. In the example of FIG. 8, in one day, the operating rates of the aerial work platforms H1 and H7 are 40% or more, and the operating rates of the aerial work platforms H2, H3, H5, and H6 are 20% or more and 30% or less. It can be seen that the operating rate of the aerial work platform H4 is 20% or less, which is the smallest.

Further, as shown in FIG. 9, the display control unit 21 displays the transition of the operating rates of the aerial work platforms H1 to H9 on the display 30 as a line graph. For example, the vertical axis of the graph of FIG. 9 shows the operating rate, and the horizontal axis of the graph of FIG. 9 shows the date. The display control unit 21 is not limited to the graphs of FIGS. 7 to 9 described above, and can display the operating status of the aerial work platforms H1 to H9 in various modes. As described above, in the present embodiment, the display control unit 21 displays the operating rate of the aerial work platforms H1 to H9 for a certain period on the display 30 in various aspects, so that the display 30 can be visually recognized. The operating status of the aerial work platforms H1 to H9 at the construction site A can be easily grasped.

Next, the action and effect obtained from the material and equipment management system 1 according to the present embodiment will be described in detail. As shown in FIG. 3, the material / equipment management system 1 manages the material / equipment E that operates by changing the distance D between one portion E1 and the other portion E2. Then, in the material / equipment management system 1, the sensor 12 detects the distance D between one part E1 of the material / equipment E and the other part E2, and whether or not the material / equipment E is operating from the detected distance D. Is detected. Therefore, since the sensor 12 detects whether or not the material and equipment E is operating by the distance D between one portion E1 and the other part E2 that constitute the material and equipment E, it is possible to suppress erroneous detection of whether or not the material and equipment E is operating. can.

That is, by detecting whether or not the sensor 12 is operating from the distance D between one portion E1 and the other portion E2, even if the non-operating materials and equipment E are shaken or the like, erroneous detection of operation is avoided. be able to. Therefore, it is possible to accurately grasp the operating status of the material / equipment E. Further, since the material / equipment management system 1 includes a display control unit 21 that displays the result of the presence / absence of operation of the material / equipment E detected by the sensor 12, the accurate operation status of the material / equipment E can be easily grasped. .. Therefore, the materials and equipment E can be managed with high accuracy.

Further, the material / equipment E is, for example, an aerial work platform H1. Generally, at the construction site A, a plurality of aerial work platforms such as the aerial work platforms H1 to H9 are often used, and it may be difficult to manage the plurality of aerial work platforms. Specifically, although many aerial work platforms have been introduced at construction site A, there are aerial work platforms that operate frequently and aerial work platforms that do not operate very often, so the aerial work platforms are wasted. It may have been introduced at site A.

On the other hand, in the material / equipment management system 1, the sensor 12 is each of the aerial work platforms H1 to H9 from the distance D between one portion E1 of each of the aerial work platforms H1 to H9 and the other portion E2. By detecting the presence or absence of operation, it is possible to grasp the operation frequency of the aerial work platforms H1 to H9. Therefore, among the aerial work platforms H1 to H9, the aerial work platforms that are not operating very often can be evacuated from the construction site A, and the minimum necessary aerial work platforms can be introduced. It is possible to manage the materials and equipment E including H9 with higher accuracy.

Further, the sensor 12 includes a magnet 12a fixed to one portion E1 and a detection unit 12b fixed to the other portion E2 and detecting a magnetic force from the magnet 12a, and the detection unit 12b detects. It detects whether or not the material / equipment E is operating according to the magnetic force from the magnet 12a.

That is, the magnet 12a is fixed to one part E1 of the material / equipment E, the detection unit 12b for detecting the magnetic force from the magnet 12a is fixed to the other part E2 of the material / equipment E, and the detection unit 12b responds to the detected magnetic force. Detects whether the equipment E is in operation. Therefore, the sensor 12 operates the material / equipment E by detecting the change in the magnetic force from the magnet 12a fixed to the other part E1 of the material / equipment E by the detection unit 12b fixed to the other part E2 of the material / equipment E. Since the presence / absence is detected, it is possible to detect the presence / absence of operation of the material / equipment E with higher accuracy. That is, even if vibration or the like occurs in the material / equipment E, the operating state of the material / equipment E is not detected unless the detection unit 12b detects a change in the magnetic force, so that erroneous detection of the operation of the material / equipment E is suppressed more reliably. be able to. Therefore, it is possible to grasp whether or not the material / equipment E is in operation with higher accuracy.

Further, as shown in FIGS. 5 and 6, the receiver 13 is attached at a position adjacent to the illumination C1 that illuminates the interior of the building C. Generally, at the construction site A, the lighting C1 is arranged at a position that does not interfere with the work. Therefore, by mounting the receiver 13 at a position adjacent to the illumination C1, the receiver 13 can be prevented from interfering with the work. Further, by connecting the power cable 13a extending from the receiver 13 to the power cable C2 adjacent to the power cable extending from the lighting C1, it is possible to efficiently supply power to the receiver 13.

Although the embodiment of the material / equipment management system according to the present invention has been described above, the present invention is not limited to the above-described embodiment, and the present invention is modified or otherwise modified without changing the gist described in each claim. It may be applied to the thing. That is, the configuration of each part of the material / equipment management system can be variously modified without changing the gist of each claim.

For example, in the above-described embodiment, it is detected that the aerial work platform H1 is in a non-operating state when the workbench H30 is not raised from the traveling body H10, and the workbench H30 is raised from the traveling body H10. An example of detecting that the aerial work platform H1 is in an operating state is described. However, the method for detecting whether or not the aerial work platform is in operation is not limited to the above example.

For example, the high-altitude work vehicle H1 shown in FIG. 3 is provided with a timer for measuring the time during which the workbench H30 is rising, and is in an operating state when the time measured by the timer is a certain time or longer. May be detected and it may be detected that the non-operating state is obtained when the time measured by the timer is less than a certain time.

For example, it is equipped with a load detection sensor that detects the load of the workbench H30, and detects that the workbench H30 is in an operating state when the workbench H30 is raised and the load detected by the load detection sensor is equal to or greater than the threshold value. It may be detected that the table H30 is not in operation when the table H30 is not raised or the load detected by the load detection sensor is less than the threshold value.

For example, in the state shown in FIG. 2, a transmitter such as a beacon attached to the person M and transmitting radio waves to the receiver 13, and a sensor 12 attached to the aerial work platform H1 and transmitting radio waves to the receiver 13. When the position information acquisition means for acquiring the position of the person M and the position of the aerial work platform H1 from (detection unit 12b) is provided, and the position of the person M and the position of the aerial work platform H1 coincide with each other. The operating state may be detected, and the non-operating state may be detected when the position of the person M and the position of the aerial work platform H1 do not match each other. In this way, the method of detecting the operating state and the non-operating state can be appropriately changed.

Further, in the above-described embodiment, an example in which the receiver 13 is installed in a manner of being suspended from the ceiling C3 at a position adjacent to the illumination C1 has been described. However, the installation location, installation means, installation method, and installation mode of the receiver 13 in the building C can be appropriately changed. The installation location, installation means, installation method, and installation mode of the sensor 12 for the material / equipment E can be changed as appropriate.

Further, in the above-described embodiment, the construction site A in which the building C is constructed has been described. However, the material / equipment management system according to the present invention can also be applied to a construction site where the building C is not constructed. That is, the type of construction site to which the material / equipment management system according to the present invention is applied can be changed as appropriate.

Further, in the above-described embodiment, an example in which the material / equipment management system 1 is applied to the scissors-type aerial work platform H1 has been described, but the material / equipment management system can be expanded and contracted between the traveling body and the workbench. It can also be applied to other types of aerial work platforms, such as post-type aerial work platforms equipped with posts. Further, the material / equipment management system according to the present invention can be applied to materials / equipment other than aerial work platforms.

FIG. 10 is a perspective view showing the standing horse S, which is an example of materials and equipment. The standing horse S is, for example, a foldable scaffold, and includes a top plate portion S1 and a ladder portion S2 provided in pairs with respect to the top plate portion S1 and freely bendable with respect to the top plate portion S1. .. As an example, the standing horse S may have one portion E1 to which the magnet 12a is fixed to the top plate portion S1, and another portion E2 to which the detection portion 12b is fixed to the ladder portion S2. In this case, the same effect as that of the above-described embodiment can be obtained by detecting the magnetic force from the magnet 12a by the detection unit 12b. That is, the accurate operating status of the Tachima S can be easily grasped. As described above, the material / equipment management system according to the present invention can be applied to various materials / equipment.

1 ... Equipment management system, 11 ... Equipment operation status detection unit, 12 ... Sensor, 12a ... Magnet, 12b ... Detection unit, 13 ... Receiver, 13a ... Power cable, 14 ... Router, 20 ... Control unit, 21 ... Display control unit, 30 ... Display, A ... Construction site, C ... Building, C1 ... Lighting, C2 ... Power cable, C3 ... Ceiling, D ... Distance, E ... Materials, E1 ... One part, E2 ... Other Parts, H1 to H9 ... aerial work platforms (materials and equipment), H10 ... traveling bodies, H11 ... tire wheels, H20 ... scissors link mechanism, H30 ... workbench, M ... people, S ... Tachima (materials and equipment), S1 ... Top plate part, S2 ... Ladder part.

Claims (2)

It is a material and equipment management system that manages materials and equipment that operate by changing the distance between the traveling body and the workbench .
A sensor that detects whether or not the equipment is operating by detecting the distance between the traveling body and the workbench, and
A display control unit that displays the result detected by the sensor, and
Equipped with
The materials and equipment are aerial work platforms,
The sensor detects that the aerial work platform is in a non-operating state when the workbench is not raised from the traveling body, and the height is raised when the workbench is raised from the traveling body. Detects that the aerial work platform is in operation,
Equipment management system. The sensor includes a magnet and a detection unit that detects a magnetic force from the magnet.
The detection unit detects whether or not the aerial work platform is operating according to the detected magnetic force from the magnet.
The equipment management system according to claim 1 .

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