Work vehicle management system, work vehicle management method, reference sensor and atmospheric pressure sensor

Abstract

To display which user will use a service vehicle in a manner of visually easy understanding.SOLUTION: The service vehicle management system is a service vehicle management system that manages a service vehicle used in work inside an architectural structure having multiple tiers. The service vehicle management system comprises a position acquisition part that acquires a tier on which the above service vehicle is deployed based on a detection value of an atmospheric pressure sensor arranged on the above service vehicle, a utilization situation acquisition part that acquires a utilization situation of the above service vehicle based on a detection value of an acceleration sensor arranged on the above service vehicle, a use reception part that accepts a use registration that maps the vehicle name indicating the above service vehicle with a user name indicating a user who uses the above service vehicle, and an output part that outputs a tier image representing the plurality of tiers in the architectural structure then outputs a use situation where a tiers on which the above service vehicle is deployed in the above tier image with the utilization situation of the above service vehicle and the user name grouped by the above user name.SELECTED DRAWING: Figure 6

Description

[Technical Field]

[0001] The present invention relates to a work vehicle management system, a work vehicle management method, a work vehicle management program, and a sensor device. [Background technology]

[0002] At construction sites, work vehicles such as transport vehicles for transporting materials and aerial work vehicles are used. These work vehicles are shared by multiple workers. Methods for managing such work vehicles are known (see, for example, Patent Documents 1 to 3). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2019-175224 [Patent Document 2] Japanese Patent Application Publication No. 2019-179357 [Patent Document 3] Patent No. 6474948 Summary of the Invention [Problem to be solved by the invention]

[0004] However, conventional methods for managing work vehicles do not make it easy to visually understand the user who uses the work vehicle and the location of the work vehicle, making it difficult for users to check the work vehicle they will be using before starting work.

[0005] One aspect of the disclosed technology is to provide a visually easy-to-understand display of which user is using a work vehicle. [Means for solving the problem]

[0006] One aspect of the disclosed technology is exemplified by the following work vehicle management system. This work vehicle management system is a work vehicle management system that manages work vehicles used for work within a building having multiple floors. This work vehicle management system includes: a position acquisition unit that acquires the floor on which the work vehicle is located based on the detection value of an air pressure sensor installed on the work vehicle; an operation status acquisition unit that acquires the operation status of the work vehicle based on the detection value of an acceleration sensor installed on the work vehicle; a usage reception unit that accepts usage registration that associates a vehicle name indicating the work vehicle with a user name indicating a user who will use the work vehicle; and an output unit that outputs a hierarchical image showing multiple floors of the building, and outputs the usage status in which the operation status of the work vehicle, the vehicle name, and the user name are associated with the floor on which the work vehicle is located in the output hierarchical image, grouped by the user name.

[0007] According to this work vehicle management system, the usage status of work vehicles is displayed in groups by user name on each floor of the building's floor image, making it easy to visually understand which users are using the work vehicles. This allows users to easily understand which work vehicles they use. Note that users may be organizations such as contractors, or individuals.

[0008] The disclosed technology may further include the following feature: The work vehicle is an aerial work vehicle equipped with a liftable aerial work platform, and the acceleration sensor is provided on the aerial work platform. By including such a feature, the disclosed technology can detect the lifting and lowering of the aerial work platform as acceleration even when the work vehicle is not moving. Therefore, the disclosed technology can detect the lifting and lowering of the aerial work platform as acceleration even when the work vehicle is not moving. This allows for a more accurate understanding of the operating status of work vehicles.

[0009] The disclosed technology may also have the following feature. A reference sensor that detects the air pressure on the first floor of the building may be provided on the first floor. The location acquisition unit may then calculate the air pressure corresponding to each floor of the building based on the air pressure detected by the reference sensor, and acquire the floor on which the work vehicle is located based on the calculated air pressure and the detection value from an air pressure sensor provided on the work vehicle. By providing such a feature, the disclosed technology can calculate the air pressure on each of multiple floors without having to measure the air pressure on each of the multiple floors.

[0010] The disclosed technology may also be configured such that the reference sensor operates on power supplied from an outlet installed within the building, the acceleration sensor and the barometric pressure sensor each operate on power supplied from a battery, the reference sensor transmits detected barometric pressure at a first interval, and the acceleration sensor and the barometric pressure sensor each transmit the detected values ​​at a second interval longer than the first interval. By transmitting the detected values ​​at the second interval longer than the first interval, the power consumed by the acceleration sensor and the barometric pressure sensor can be reduced, thereby reducing the frequency of battery replacement.

[0011] The disclosed technology may also have the following feature: The position acquisition unit may acquire the floor on which the work vehicle is located based on detection values ​​from a barometric pressure sensor and a GPS sensor provided on the work vehicle. By having such a feature, the disclosed technology can acquire the position of the work vehicle in the horizontal direction in addition to the vertical direction.

[0012] The disclosed technology can also be understood from the aspects of a work vehicle management method, a work vehicle management program, and a sensor device used in the work vehicle. The sensor device is a sensor device used in a work vehicle used for work inside a multi-story building, and includes an acceleration sensor that detects acceleration, a barometric pressure sensor that detects barometric pressure, and a control unit that transmits at least the detected values ​​detected by the barometric pressure sensor at predetermined intervals. The control unit may transmit the detected values ​​detected by the barometric pressure sensor and the acceleration sensor when the detected value detected by the acceleration sensor is equal to or greater than a threshold, and transmit the detected value detected by the barometric pressure sensor when the detected value detected by the acceleration sensor is less than the threshold. With this sensor device, the position of the work vehicle can be detected by the barometric pressure sensor, and the operating status of the work vehicle can be detected by the acceleration sensor. [Effects of the Invention]

[0013] According to the disclosed technology, it is possible to visually display which user is using a work vehicle in an easily understandable manner. [Brief explanation of the drawings]

[0014] [Figure 1] FIG. 1 is a diagram illustrating an example of the overall configuration of a work vehicle management system according to an embodiment. [Figure 2] FIG. 2 is a diagram illustrating an example of a hardware configuration of a server. [Figure 3] FIG. 3 is a diagram illustrating an example of a hardware configuration of a tablet terminal. [Figure 4] FIG. 4 is a diagram illustrating an example of the hardware configuration of the work vehicle sensor device. [Figure 5] FIG. 5 is a diagram illustrating an example of a hardware configuration of the reference sensor device. [Figure 6] FIG. 6 is a diagram illustrating an example of a processing block of the server. [Figure 7]FIG. 7 is a diagram showing an example of a floor number / air pressure management table stored in the management database. [Figure 8] FIG. 8 is a diagram showing an example of a floor number / atmospheric pressure management table in which the atmospheric pressure indicated by the detection value received from the reference sensor device is stored. [Figure 9] FIG. 9 is a diagram showing an example of the floor number / atmospheric pressure management table after the calculation unit calculates the atmospheric pressure corresponding to each floor of a building based on the atmospheric pressure indicated by the detection value received from the reference sensor device. [Figure 10] FIG. 10 is a diagram showing an example of a work vehicle management table stored in the management database. [Figure 11] FIG. 11 is a diagram illustrating an example of a usage status management table stored in the management database. [Figure 12] FIG. 12 is a diagram showing an example of a usage acceptance screen output by the usage acceptance unit. [Figure 13] FIG. 13 is a diagram showing an example of a usage status confirmation screen output by the output unit. [Figure 14] FIG. 14 is a diagram showing a usage status confirmation screen 251 in which the company name is a major item. [Figure 15] FIG. 15 is a diagram showing another example of the usage status confirmation screen. [Figure 16] FIG. 16 is a diagram illustrating an example of an operation status confirmation screen output by the output unit. [Figure 17] FIG. 17 is an explanatory diagram of the operation status icons displayed on the operation status confirmation screen. [Figure 18] FIG. 18 is a diagram illustrating an example of a processing flow of the reference sensor device. [Figure 19] FIG. 19 is a diagram showing an example of a processing flow of the work vehicle sensor device. [Figure 20] FIG. 20 is an example of a processing flow of the process of creating a floor number / pressure management table by the server. [Figure 21] FIG. 21 shows an example of a processing flow of the work vehicle management table creation processing by the server. [Figure 22]FIG. 22 is a diagram showing an example of a processing flow for accepting registration of use of a work vehicle by a server. [Figure 23] FIG. 23 is a diagram illustrating an example of a processing flow for outputting a usage status confirmation screen by a server. DETAILED DESCRIPTION OF THE INVENTION

[0015] <Embodiment> Hereinafter, an embodiment will be described with reference to the drawings. The configuration of the embodiment shown below is an example, and the disclosed technology is not limited to the configuration of the embodiment. FIG. 1 is a diagram illustrating the overall configuration of a work vehicle management system 100 according to an embodiment. The work vehicle management system 100 is a system that manages work vehicles 1 used in construction work on a 13-story building 4. The work vehicle management system 100 comprises a work vehicle 1, a reference sensor device 13, a server 2, and a tablet terminal 3. The building 4 is an example of a "building having multiple floors."

[0016] The work vehicle 1 is a vehicle used at a construction site. The work vehicle 1 is, for example, an aerial work vehicle having an aerial work platform 11 on which a worker rides. The aerial work platform 11 can be raised and lowered freely depending on the height of the work object. The work vehicle sensor device 12 is provided on the aerial work platform 11. The work vehicle sensor device 12 includes, for example, various sensors that detect the operating status and position of the work vehicle 1, and transmits the detection values ​​detected by the sensors to the server 2 via a first wireless link N1.

[0017] The reference sensor device 13 is a sensor device installed on the first floor of the building 4. The reference sensor device 13 includes a barometric pressure sensor that measures the barometric pressure on the floor where it is installed. The detected value by the sensor is transmitted to the server 2 via the first wireless link N1. The first floor of the building 4 is an example of the "first floor."

[0018] The server 2 is an information processing device. The server 2 receives and stores sensor detection values ​​acquired by the work vehicle sensor devices 12 provided on each of the work vehicles 1 via the first wireless link N1. The server 2 also accepts usage registrations for the work vehicles 1 from the tablet terminal 3 via the second wireless link N2, and stores usage information indicating the accepted usage registrations. The server 2 provides work vehicle information based on the stored sensor detection values ​​and usage information to the tablet terminal 3 so that it can be viewed via the second wireless link N2.

[0019] The tablet terminal 3 is a portable information processing device used by workers at construction sites. The tablet terminal 3 displays on its display the work vehicle information provided by the server 2 via the second wireless link N2. The tablet terminal 3 also transmits the usage registration of the work vehicle 1 to the server 2 in response to an operation by the worker.

[0020] (Server 2 hardware configuration) 2 is a diagram showing an example of the hardware configuration of server 2. Server 2 includes a Central Processing Unit (CPU) 201, a main memory unit 202, an auxiliary memory unit 203, a first communication unit 204, and a second communication unit 205. CPU 201, main memory unit 202, auxiliary memory unit 203, first communication unit 204, and second communication unit 205 are connected to each other by a connection bus.

[0021] The CPU 201 is also called a microprocessor unit (MPU) or processor. The CPU 201 is not limited to a single processor and may have a multi-processor configuration. Furthermore, a single CPU 201 connected via a single socket may have a multi-core configuration. In the server 2, the CPU 201 loads a program stored in the auxiliary storage unit 203 into the working area of ​​the main storage unit 202, and controls peripheral devices through the execution of the program. This allows the server 2 to execute processing that meets a predetermined purpose.

[0022] The main storage unit 202 is exemplified as a storage unit that is directly accessed by the CPU 101. The main storage unit 202 includes a random access memory (RAM) and a read only memory (ROM).

[0023] The auxiliary storage unit 203 stores various programs and various data on a recording medium in a readable and writable manner. The auxiliary storage unit 203 is also called an external storage device. The auxiliary storage unit 203 stores an operating system (OS), various programs, various tables, etc. The external devices include, for example, other information processing devices and external storage devices connected via a computer network, etc. The auxiliary storage unit 203 may be, for example, part of a cloud system, which is a group of computers on a network.

[0024] The auxiliary storage unit 203 is, for example, an erasable programmable ROM (EPROM), a solid state drive (SSD), a hard disk drive (HDD), etc. Furthermore, the auxiliary storage unit 203 is, for example, a compact disc (CD) drive device, a digital versatile disc (DVD) drive device, a Blu-ray (registered trademark) disc (BD) drive device, etc. Furthermore, the auxiliary storage unit 203 may be provided by a network attached storage (NAS) or a storage area network (SAN).

[0025] The first communication unit 204 is an interface with the LTE network, and communicates with the aerial work platform 11 via a first wireless link N1 realized by the LTE network.

[0026] The second communication unit 205 is an interface with a wireless local area network (LAN) and communicates with the tablet terminal 3 via a second wireless link N2 realized by the wireless LAN.

[0027] The server 2 may further include, for example, an input unit that accepts operation instructions, etc. from a user, etc. Examples of such an input unit include input devices such as a keyboard, a pointing device, a touch panel, or a voice input device.

[0028] The server 2 may include, for example, an output unit that outputs data processed by the CPU 201 and data stored in the main memory unit 202. Examples of such an output unit include a Cathode Ray Tube (CRT) display, a Liquid Crystal Display (LCD), and a Examples of output devices include a display (LCD), a plasma display panel (PDP), an electroluminescence (EL) panel, an organic EL panel, or a printer.

[0029] (Hardware configuration of tablet device 3) 3 is a diagram showing an example of the hardware configuration of the tablet terminal 3. The tablet terminal 3 includes a CPU 201, a main memory unit 202, an auxiliary memory unit 203, a second communication unit 205, a display 301, a touch panel 302, and a camera 303. The same components as those in the server 2 are given the same reference numerals, and their description will be omitted. In the tablet terminal 3, the display 301, the touch panel 302, and the camera 303 are also connected by a connection bus.

[0030] The display 301 displays data processed by the CPU 201 and data stored in the main memory unit 202. The display 301 is, for example, a liquid crystal display (LCD), a plasma display panel (PDP), an electroluminescence (EL) panel, or an organic EL panel.

[0031] The touch panel 302 is disposed superimposed on the display 301. The touch panel 302 detects contact with a finger and acquires the coordinate values ​​of the contact position. The touch panel 302 notifies the CPU 201 of the acquired coordinate values ​​of the contact position and time information. By disposing the touch panel 302 on the display 301, the tablet terminal 3 can provide the worker with intuitive operations.

[0032] The camera 303 is a digital camera having a charge coupled device (CCD) image sensor or a complementary metal-oxide-semiconductor (CMOS) image sensor, and is capable of capturing still images and moving images.

[0033] (Hardware configuration of work vehicle sensor device 12) 4 is a diagram showing an example of the hardware configuration of the work vehicle sensor device 12. The work vehicle sensor device 12 includes a microcomputer 1201, an air pressure sensor 1202, an acceleration sensor 1203, a battery 1204, a switch 1205, and a first communication unit 204.

[0034] The microcomputer 1201 is, for example, a combination of a processor and a storage unit. The microcomputer 1201 may be a microcontroller unit (MCU), a system-on-a-chip (SoC), a system large scale integration (LSI), a chip set, etc. The microcomputer 1201 includes a memory unit. The memory unit of the microcomputer 1201 stores, for example, the vehicle name indicating the work vehicle 1.

[0035] The atmospheric pressure sensor 1202 is a sensor that detects atmospheric pressure. The atmospheric pressure sensor 1202 is, for example, a semiconductor piezo-resistance type atmospheric pressure sensor. The atmospheric pressure sensor 1202 detects the atmospheric pressure at the location where the work vehicle sensor device 12 is installed.

[0036] The acceleration sensor 1203 is a sensor that detects acceleration. The acceleration sensor 1203 detects the acceleration of the work vehicle sensor device 12. Since the acceleration sensor 1203 is installed on the aerial work platform 11 of the work vehicle 1, the acceleration sensor 1203 detects the acceleration of the aerial work platform 11 even when the work vehicle 1 is not moving, as long as the aerial work platform 11 is rising or falling.

[0037] The microcomputer 1201 associates the detected value indicating the atmospheric pressure obtained by the atmospheric pressure sensor 1202 and the detected value indicating the acceleration obtained by the acceleration sensor 1203 with the vehicle name of the work vehicle 1 and transmits them to the server 2 via the first communication unit 204 at a predetermined interval (for example, every 60 minutes).

[0038] Note that the microcomputer 1201 does not need to transmit the detection value of the acceleration sensor 1203 if it is below a preset threshold. The work vehicle sensor device 12 may be configured, for example, so that an interrupt occurs when a detection value indicating acceleration by the acceleration sensor 1203 is equal to or greater than a threshold. Then, when an interrupt occurs, the microcomputer 1201 may associate the detection value indicating atmospheric pressure by the atmospheric pressure sensor 1202 and the detection value indicating acceleration by the acceleration sensor 1203 with the vehicle name of the work vehicle 1 and transmit them to the server 2. Furthermore, when an interrupt does not occur, the microcomputer 1201 may associate the detection value indicating atmospheric pressure by the atmospheric pressure sensor 1202 with the vehicle name of the work vehicle 1 and transmit them to the server 2 via the first communication unit 204.

[0039] Furthermore, the microcomputer 1201 may detect the remaining charge of the battery 1204 and transmit the detected remaining charge to the server 2 along with the detection values ​​of the atmospheric pressure sensor 1202 and the acceleration sensor 1203. The work vehicle sensor device 12 transmits at a relatively long interval of 60 minutes, thereby reducing the power consumption of the work vehicle 1 and thereby extending the life of the battery 1204. Note that the transmission interval of the work vehicle sensor device 12 is not limited to 60 minutes, and the transmission interval may be set to 30 minutes, 90 minutes, or the like so that the remaining charge of the battery 1204 will last for the duration of one day's work (for example, one hour) or for a predetermined period of use such as one week. The microcomputer 1201 is an example of a "controller."

[0040] The battery 1204 supplies power to the microcomputer 1201, the atmospheric pressure sensor 1202, the acceleration sensor 1203, and the first communication unit 204. The battery 1204 is, for example, a dry cell.

[0041] Switch 1205 is, for example, a push-button switch. When switch 1205 is pressed, microcomputer 1201 associates the detection value indicating the atmospheric pressure obtained by atmospheric pressure sensor 1202 and the detection value indicating the acceleration obtained by acceleration sensor 1203 with the vehicle name of work vehicle 1 and transmits them to server 2 via first communication unit 204, even if 60 minutes have not yet elapsed since the previous transmission of the detection values.

[0042] (Hardware configuration of reference sensor device 13) 5 is a diagram showing an example of the hardware configuration of the reference sensor device 13. The work vehicle sensor device 13 includes a microcomputer 1201, an air pressure sensor 1202, and a first communication unit 204. The reference sensor device 13 receives power from an outlet installed in the building 4, for example, and therefore, unlike the work vehicle sensor device 12, the battery 1204 is omitted.

[0043] The atmospheric pressure sensor 1202 detects the atmospheric pressure at the location where the reference sensor device 13 is installed. The microcomputer 1201 transmits the detected value indicating the atmospheric pressure from the atmospheric pressure sensor 1202 to the server 2 via the first communication unit 204 at predetermined intervals (for example, every 5 seconds). As described above, the reference sensor device 13 receives power from an outlet installed in the building 4, so there is no need to consider power saving. Therefore, the reference sensor device 13 can detect the atmospheric pressure at shorter intervals than the work vehicle sensor device 12 and transmit the detected value indicating the atmospheric pressure.

[0044] (Server 2 processing block) 6 is a diagram showing an example of a processing block of the server 2. The server 2 includes a calculation unit 21, a position acquisition unit 22, an operation status acquisition unit 23, a usage acceptance unit 24, an output unit 25, and a management database 26. The server 2 executes the processes of each unit of the server 2, such as the calculation unit 21, the position acquisition unit 22, the operation status acquisition unit 23, the usage acceptance unit 24, the output unit 25, and the management database 26, by the CPU 201 executing a computer program deployed in an executable manner in the main memory unit 202.

[0045] The management database 26 is a database that manages the correspondence between the number of floors, height, and atmospheric pressure of the building 4, as well as the usage status of the aerial work platform 11. FIG. 7 is a diagram showing an example of a floor / atmospheric pressure management table 261 stored in the management database 26. The floor / atmospheric pressure management table 261 includes the following items: "floor," "height (mm)," and "atmospheric pressure (Pa)." "Floor" stores information indicating each floor of the building 4. "Height (mm)" stores information indicating the floor height (above ground level) of each floor of the building 4, as measured in advance (or as designed). The unit is "mm (millimeter)." "Atmospheric pressure (Pa)" stores information indicating the atmospheric pressure corresponding to each floor. The unit is "Pa (Pascal)." The floor / atmospheric pressure management table 261 associates each floor of the building 4 with atmospheric pressure.

[0046] FIG. 10 is a diagram showing an example of a work vehicle management table 262 stored in the management database 26. The work vehicle management table 262 includes the following fields: "Vehicle Name," "Location," "Operation Status," "Remaining Capacity," and "Update Date and Time." "Vehicle Name" stores the name given to the work vehicle 1. "Location" stores information indicating the location where the work vehicle 1 is located. For example, if the work vehicle 1 is located on the third floor of building 4, "third floor" is stored as "Location." "Operation Status" stores information indicating the operating status of the work vehicle 1. Examples of information indicating the operating status include "in operation" and "stopped." "Remaining Capacity" stores information indicating the remaining capacity of the battery 1204 of the work vehicle sensor device 12 mounted on the work vehicle 1. An example of information indicating the remaining capacity of the battery 1204 is a percentage (%).

[0047] FIG. 11 is a diagram showing an example of a usage status management table 263 stored in the management database 26. The usage status management table 263 includes the following items: "ID," "Vehicle name," "Contractor name," "Individual name," and "Comment." "ID" stores an ID that identifies the usage status of each work vehicle 1. "Vehicle name" stores the name of the work vehicle 1. "Contractor name" stores the name of the contractor to which the worker using the work vehicle 1 belongs. "Individual name" stores the name of the worker using the work vehicle 1. "Comment" stores comments such as information about the work vehicle 1 and information about the construction work. "Comment" is used to store information such as a decision between contractors or workers on who will use which work vehicle 1, for example, the day before the day of use. A coordination meeting may be held to decide on the date, and comments based on the decision may be registered. For example, by registering a comment such as "I would like to use it from XX date" in "Comments," the comment can be taken into consideration in the coordination meeting when dispatching the work vehicle 1. "Individual name" is an example of "Worker name."

[0048] The calculation unit 21 calculates the atmospheric pressure corresponding to each floor of the building 4. When the calculation unit 21 receives a detected value of atmospheric pressure from the reference sensor device 13, the calculation unit 21 stores the atmospheric pressure indicated by the detected value received from the reference sensor device 13 as the atmospheric pressure corresponding to the floor on which the reference sensor device 13 is installed in the floor / atmospheric pressure management table 261. The floor on which the reference sensor device 13 is installed is stored in advance in, for example, the auxiliary storage unit 203. FIG. 8 is a diagram showing an example of the floor / atmospheric pressure management table 261 in which the atmospheric pressure indicated by the detected value received from the reference sensor device 13 is stored. In this embodiment, the reference sensor device 13 is installed on the first floor of the building 4, and therefore the atmospheric pressure indicated by the detected value received from the reference sensor device 13 is stored in association with the first floor in the floor / atmospheric pressure management table 261.

[0049] The calculation unit 21 calculates the atmospheric pressure on each floor of the building 4 based on the atmospheric pressure indicated by the detection value received from the reference sensor device 13. The calculation of the atmospheric pressure can be performed using various known calculation methods, for example, using the height associated with each floor in the floor number / atmospheric pressure management table 261 and the atmospheric pressure indicated by the detection value received from the reference sensor device 13.

[0050] The following method can be used as an example of a method for calculating atmospheric pressure. The height per 1 hPa of atmospheric pressure varies depending on the altitude of the construction site where building 4 is to be constructed. For example, it is 8.3 (m / hPa) at an altitude of 0 m, 9.1 (m / hPa) at an altitude of 1000 m, 10.1 (m / hPa) at an altitude of 2000 m, and 11.2 (m / hPa) at an altitude of 3000 m. Therefore, it is preferable to select the atmospheric pressure associated with a height of 1 m depending on the altitude of the construction site where building 4 is to be constructed.

[0051] In this embodiment, 8.4 (m / hPa) is selected assuming that the elevation of the construction site where building 4 is to be constructed is between several tens of meters and several hundreds of meters. Then, the calculation unit 21 can calculate the atmospheric pressure corresponding to each floor by dividing the elevation difference (m) between the floor on which the reference sensor device 13 is installed in building 4 and each floor by 8.4 (m / hPa).

[0052] FIG. 9 is a diagram showing an example of the floor / atmospheric pressure management table 261 after the calculation unit 21 has calculated the atmospheric pressure corresponding to each floor of the building 4 based on the atmospheric pressure indicated by the detection value received from the reference sensor device 13. The calculation unit 21 calculates the atmospheric pressure corresponding to each of the second to thirteenth floors of the building 4, and each calculated atmospheric pressure is stored in the floor / atmospheric pressure management table 261. As a result of the calculation by the calculation unit 21, each floor of the building 4 is associated with an atmospheric pressure. Note that the reference sensor device 13 transmits detection values ​​at five-second intervals. Therefore, each time the calculation unit 21 receives a detection value from the reference sensor device 13, the calculation unit 21 may calculate the atmospheric pressure corresponding to each floor of the building 4 based on the atmospheric pressure indicated by the newly received detection value, and update the floor / atmospheric pressure management table 261.

[0053] The position acquisition unit 22 acquires the position of the work vehicle 1 based on the atmospheric pressure detected by the work vehicle sensor device 12. The position acquisition unit 22 receives a detection value indicating the atmospheric pressure detected by the atmospheric pressure sensor 1202 from the work vehicle sensor device 12. The position acquisition unit 22 references the floor number / atmospheric pressure management table 261 and acquires the floor number corresponding to the atmospheric pressure indicated by the detection value received from the work vehicle sensor device 12. The position acquisition unit 22 may use the acquired floor number as the position of the work vehicle 1. The position acquisition unit 22 associates the floor number on which the work vehicle 1 is located with the vehicle name of the work vehicle 1 and stores this in the work vehicle management table 262.

[0054] As described above, the work vehicle sensor device 12 is provided on the aerial work platform 11 of the work vehicle 1. Therefore, when the aerial work platform 11 is located near the ceiling, it is conceivable that the air pressure indicated by the detection value received from the work vehicle sensor device 12 will be closer to the air pressure corresponding to a floor above the floor on which the work vehicle 1 is located. Therefore, if the floor associated with the air pressure closest to the air pressure indicated by the detection value received from the work vehicle sensor device 12 in the floor number / air pressure management table 261 is determined to be the floor on which the work vehicle 1 is located, there is a risk of erroneously detecting the position of the work vehicle 1. Therefore, the position acquisition unit 22 may determine that the work vehicle 1 is located on a certain floor if the air pressure indicated by the detection value received from the work vehicle sensor device 12 is equal to or greater than the air pressure associated with a certain floor and less than the air pressure associated with the floor one floor above that certain floor.

[0055] The operating status acquisition unit 23 acquires the operating status of the work vehicle 1 based on the acceleration detected by the work vehicle sensor device 12. The operating status acquisition unit 23 receives a detection value indicating the acceleration detected by the acceleration sensor 1203 from the work vehicle sensor device 12. The operating status acquisition unit 23 determines that the work vehicle 1 is operating if the received detection value indicating the acceleration is equal to or greater than a threshold. Furthermore, the operating status acquisition unit 23 determines that the work vehicle 1 is not operating if the received detection value indicating the acceleration is less than the threshold. The operating status acquisition unit 23 stores the determined operating status in the work vehicle management table 262 in association with the vehicle name of the work vehicle 1.

[0056] The usage acceptance unit 24 accepts usage registration that associates a work vehicle 1 with the name of a worker who will use the work vehicle 1. The usage acceptance unit 24 transmits a usage acceptance screen to the tablet terminal 3, for example, in response to a request from the tablet terminal 3. FIG. 12 is a diagram showing an example of a usage acceptance screen 241 output by the usage acceptance unit 24. The usage acceptance screen 241 includes a usage vehicle name input field 2411, a usage company name input field 2412, a user name input field 2413, a comment entry field 2414, and a registration button 2415. The usage vehicle name input field 2411 is, for example, a pull-down menu, and may enable the selection of the vehicle name of an unused work vehicle 1. For example, information is entered into each of the input fields for the usage vehicle name input field 2411, the user company name input field 2412, and the user name input field 2413 of the usage acceptance screen 241 displayed on the tablet terminal 3 by the worker who will use the work vehicle 1. That is, the vehicle name of the work vehicle 1 used by the worker is input into the vehicle name input field 2411. The name of the contractor to which the worker belongs is input into the contractor name input field 2412. The worker's personal name is input into the user name input field 2413. The comment input field 2414 is used to input comments such as information about the work vehicle 1 and information about the construction work. When the register button 2415 is pressed with information entered into each of the input fields, namely, the vehicle name input field 2411, the contractor name input field 2412, the user name input field 2413, and the comment input field 2414, usage information including the information entered into each input field is transmitted from the tablet terminal 3 to the server 2 via the second wireless link N2.

[0057] When the usage acceptance unit 24 receives usage information from the tablet terminal 3, it stores the received usage information in the usage status management table 263. That is, the usage acceptance unit 24 stores the information entered in the used vehicle name input field 2411 of the usage acceptance screen 241 in the "vehicle name" field of the usage status management table 263. The usage acceptance unit 24 stores the information entered in the used business name input field 2412 of the usage acceptance screen 241 in the "business name" field of the usage status management table 263. The usage acceptance unit 24 stores the information entered in the user name input field 2413 of the usage acceptance screen 241 in the "personal name" field of the usage status management table 263. The usage acceptance unit 24 stores the information entered in the comment input field 2414 in the "comment" field of the usage status management table 263. Through these processes, the usage acceptance unit 24 stores the usage information in the usage status management table 263.

[0058] The output unit 25 outputs a usage status confirmation screen that displays the usage status stored in the usage status management table 263. For example, when the output unit 25 receives a usage status confirmation request from the tablet terminal 3, the output unit 25 outputs a usage status confirmation screen that displays the usage status stored in the work vehicle management table 262 and the usage status management table 263. The output unit 25 then generates a usage status check screen based on the information thus obtained. The output unit 25 then transmits the generated usage status check screen to the tablet terminal 3.

[0059] 13 is a diagram showing an example of a usage status confirmation screen 251 output by the output unit 25. The usage status confirmation screen 251 includes a building image 2511, a floor image 2512, and a usage status table 2513. The output unit 25 outputs a building image 2511 that schematically shows building 4. The building image 2511 shows a floor image 2512 that schematically shows each floor of building 4. The output unit 25 places a usage status table 2513 that shows the usage status of work vehicles in the floor image 2512 that shows each floor, based on the information stored in the work vehicle management table 262 and the usage status management table 263. In the usage status table 2513, the list of usage statuses is sorted by contractor name, and further sorted by individual name.

[0060] By sorting by contractor name, a list of usage statuses is displayed grouped by contractor. Furthermore, by sorting by individual name within each contractor name, a list of usage statuses is displayed grouped by individual name within each contractor. A boundary line 2514 is then added to the boundary between each contractor name. By showing the boundary line between each contractor using the boundary line 2514, it becomes easier to understand which contractor is using which work vehicle 1. Note that the boundary line 2514 may be omitted.

[0061] As another example of a method for displaying the usage status grouped by business operator, the output unit 25 may display a usage status table 2513 in which the business operator name is a major item. Fig. 14 is a diagram showing a usage status confirmation screen 251 in which the business operator name is a major item. The business operator name may be a major item that includes one or more sets of personal name, vehicle name, and operating status. Such a usage status table 2513 also makes it possible to display a list of usage status grouped by business operator.

[0062] The output unit 25 may change the order of information displayed on the usage status confirmation screen 251 in response to an operation by the worker. FIG. 15 is a diagram showing another example of the usage status confirmation screen 251. In FIG. 15, the list of usage statuses is sorted by individual name, and further sorted by vendor name. As a result, the order of sorting on the first floor of the usage status table 2513 is different between FIG. 13 and FIG. 15. In this way, the output unit 25 may change the priority of the keys used for sorting in response to an operation by the worker.

[0063] The output unit 25 may further output a status display screen that displays the operation status of the work vehicles 1 stored in the work vehicle management table 262. FIG. 16 is a diagram showing an example of the operation status confirmation screen 252 output by the output unit 25. The operation status confirmation screen 252 includes the fields "Floor," "Work Vehicle," and "Number of Vehicles." "Floor" displays information indicating the floor on which the work vehicle 1 is located in the building 4. "Work Vehicle 1" displays operation status icons 253 that schematically indicate the operation status of each work vehicle 1. One operation status icon 253 schematically indicates the operation status of one work vehicle 1. In other words, the same number of operation status icons 253 as the number of work vehicles 1 located on each floor is displayed. "Number of Vehicles" displays the total number of work vehicles 1 located on each floor. In other words, the operation status confirmation screen 252 displays the operation status of the work vehicles 1 and the number of work vehicles 1 for each floor on which the work vehicle 1 is located.

[0064] FIG. 17 is an explanatory diagram of the operation status icon 253 displayed on the operation status confirmation screen 252. The operation status icon 253 includes a background area 2531, an operation status 2532, an operation status 2533, an operation status 2534, an operation status 2535, a comment mark 2536, and a warning mark 2537. The background area 2531 displays the name of the work vehicle 1 and the name of the contractor using the work vehicle 1. The background area 2531 further displays the name of the contractor using the work vehicle 1. The background color indicates the remaining capacity of the battery 1204 of the work vehicle sensor device 12. The background color of the background area 2531 may be, for example, "light blue" if the remaining capacity of the battery 1204 is equal to or greater than a threshold, and "red" if it is less than the threshold.

[0065] Each of the operation status 2532, operation status 2533, operation status 2534, and operation status 2535 is an icon that indicates the operation status of the work vehicle 1 using a color. Each of the operation status 2532, operation status 2533, operation status 2534, and operation status 2535 may be, for example, "light blue" when the work vehicle 1 was operating, and "yellow" when it was not operating. The operation status 2532 indicates the operation status of the work vehicle 1 on the current day. The operation status 2533 indicates the operation status of the work vehicle 1 one day ago. The operation status 2534 indicates the operation status of the work vehicle 1 two days ago. The operation status 2535 indicates the operation status of the work vehicle 1 three days ago. The operation status confirmation screen 252 can show the operation status of the work vehicle 1 for four days, including the current day, using the operation status 2532, operation status 2533, operation status 2534, and operation status 2535.

[0066] The comment mark 2536 is a mark that is displayed when there is a comment associated with the work vehicle 1 in the usage status management table 263. For example, by performing a designation operation on the comment mark 2536, the comment stored in the usage status management table 263 is displayed in a speech bubble or the like. The attention mark 2537 is a mark that is displayed when no detection value has been received from the work vehicle sensor device 12 for three days or more. The display of the attention mark 2537 makes it possible to recognize that there may be an abnormality in communication.

[0067] (Processing flow of the reference sensor device 13) 18 is a diagram showing an example of a processing flow of the reference sensor device 13. Hereinafter, an example of a processing flow of the reference sensor device 13 will be described with reference to FIG.

[0068] At T1, initial settings are made. For example, the initial settings include calibration of the barometric pressure sensor 1202 and registration of the server 2 to which the detected values ​​are sent. Details of the calibration will be described later.

[0069] At T2, the atmospheric pressure sensor 1202 measures the atmospheric pressure. At T3, the microcomputer 1201 transmits the detection value indicating the atmospheric pressure measured by the atmospheric pressure sensor 1202 at T2 to the server 2 via the first communication unit 204.

[0070] At T4, the microcomputer 1201 determines whether five seconds have passed since the previous transmission of the detected value. If five seconds have passed (YES at T4), the process returns to T2, where the atmospheric pressure is measured (T2) and the detected value is transmitted (T3). If five seconds have not passed (NO at T4), the process at T4 is repeated.

[0071] (Processing flow of the work vehicle sensor device 12) 19 is a diagram showing an example of a processing flow of the work vehicle sensor device 12. Hereinafter, an example of a processing flow of the work vehicle sensor device 12 will be described with reference to FIG.

[0072] At T11, initial settings are performed. In the initial settings, for example, the barometric pressure sensor 1202 and the acceleration sensor 1203 are calibrated, and the server 2 to which the detected values ​​are sent is registered. In addition, a threshold value for generating an interrupt (a threshold value for the detected value of the acceleration sensor 1203) is also set. Details of the calibration will be described later.

[0073] At T12, the atmospheric pressure sensor 1202 measures atmospheric pressure. Furthermore, the acceleration sensor 1203 measures acceleration. If an interrupt occurs, that is, if the detected value indicating acceleration detected at T12 is equal to or greater than the threshold value (YES at T13), the process proceeds to T14. If no interrupt occurs, that is, if the detected value indicating acceleration detected at T12 is less than the threshold value (NO at T13), the process proceeds to T15.

[0074] At T14, the microcomputer 1201 transmits to the server 2 via the first communication unit 204 the detection value indicating the atmospheric pressure measured by the atmospheric pressure sensor 1202 at T12 and the detection value indicating the acceleration measured by the acceleration sensor 1203.

[0075] At T15, the detection value indicating the atmospheric pressure measured by the atmospheric pressure sensor 1202 at T12 is transmitted to the server 2 via the first communication unit 204.

[0076] At T16, the microcomputer 1201 determines whether the switch 1205 has been pressed. If the switch has been pressed (YES at T16), the process returns to T12, where the barometric pressure and acceleration are measured (T12) and the detected values ​​are transmitted (T14, T15). If the switch has not been pressed (NO at T16), the process proceeds to T15.

[0077] At T17, the microcomputer 1201 determines whether 60 minutes have passed since the previous transmission of the detection value. If 60 minutes have passed (YES at T17), the process returns to T12, where the barometric pressure and acceleration are measured (T12) and the detection values ​​are transmitted (T14, T15). If 60 minutes have not passed (NO at T17), the process returns to T16.

[0078] (calibration) Due to individual differences between the work vehicle sensor device 12 and the reference sensor device 13, the detected values ​​of each sensor may differ even when measuring the same atmospheric pressure. The difference in detected values ​​due to such individual differences can be, for example, approximately ±30 Pa. Therefore, if such individual differences are left unaddressed during operation, the accuracy with which the server 2 detects the position of the work vehicle 1 will decrease. Therefore, sensor calibration is performed, as shown at T1 in FIG. 18 and T11 in FIG. 19. During calibration, the work vehicle sensor device 12 and the reference sensor device 13 are placed on the same floor (same height), and atmospheric pressure measurements are performed simultaneously with each sensor. Then, calibration is performed on the detected values ​​of each sensor so that the detected values ​​of each sensor indicate the same atmospheric pressure. Then, the work vehicle sensor device 12 and the reference sensor device 13, whose detected values ​​have been calibrated, are placed on predetermined floors of the building 4.

[0079] (Processing flow of floor number and atmospheric pressure management table 261 construction processing) 20 shows an example of a processing flow of the creation process of the floor number / atmospheric pressure management table 261 by the server 2. Hereinafter, an example of a processing flow of the creation process of the floor number / atmospheric pressure management table 261 by the server 2 will be described with reference to FIG.

[0080] At T21, the calculation unit 21 accepts registration of the height of each floor and stores the accepted height of each floor in the floor number / air pressure management table 261. The calculation unit 21 also accepts registration of the floor number on which the reference sensor device 13 is installed and stores the accepted floor number in the auxiliary storage unit 203. In this embodiment, the reference sensor device 13 is installed on the first floor of building 4. Therefore, the calculation unit 21 stores information indicating that the floor on which the reference sensor device 13 is installed is the first floor in the auxiliary storage unit 203.

[0081] At T22, the calculation unit 21 receives a detection value indicating the atmospheric pressure from the reference sensor device 13. At T23, the calculation unit 21 stores the atmospheric pressure indicated by the detection value received at T22 in the floor number / atmospheric pressure management table 261 as the atmospheric pressure corresponding to the floor on which the reference sensor device 13 is installed. .

[0082] In T24, the calculation unit 21 calculates the atmospheric pressure on each floor of the building 4 based on the atmospheric pressure stored in T22, and stores the calculated atmospheric pressure in the floor number / atmospheric pressure management table 261.

[0083] At T25, the calculation unit 21 determines whether or not a detection value has been received from the reference sensor device 13. If a detection value has been received (YES at T25), the process returns to T23, where the detection value is stored (T23), and the atmospheric pressure for each floor is calculated and stored (T24). If no detection value has been received (NO at T25), the process of T25 is repeated. That is, in the process flow of FIG. 20, every time a detection value is received from the reference sensor device 13, the atmospheric pressure associated with each floor in the floor number / atmospheric pressure management table 261 is updated.

[0084] (Processing flow of work vehicle management table 262 construction processing) 21 shows an example of a processing flow of the process of creating the work vehicle management table 262 by the server 2. Hereinafter, an example of a processing flow of the process of creating the work vehicle management table 262 by the server 2 will be described with reference to FIG.

[0085] At T31, the server 2 receives a detected value indicating atmospheric pressure and a detected value indicating acceleration from the work vehicle sensor device 12, along with the vehicle name of the work vehicle 1. At T32, the position acquisition unit 22 calculates the floor number on which the work vehicle 1 is located based on the detected value indicating atmospheric pressure received at T31 and the floor number / atmospheric pressure management table 261. The management database 26 stores the calculated floor number in the work vehicle management table 262 in association with the vehicle name received at T31.

[0086] At T33, the operating status acquisition unit 23 determines the operating status of the work vehicle 1 based on the detection value indicating the acceleration received at T31. The operating status acquisition unit 23 stores the determined operating status in the work vehicle management table 262 in association with the vehicle name received at T31.

[0087] In T34, the server 2 determines whether or not a detection value has been received from the work vehicle sensor device 12. If a detection value has been received (YES in T34), the process returns to T32, where the position of the work vehicle 1 is determined and stored (T32), and the operating status of the work vehicle 1 is determined and stored (T33). If no detection value has been received (NO in T34), the process of T34 is repeated. That is, in the process flow of Figure 21, the position and operating status of the work vehicle 1 in the work vehicle management table 262 are updated each time a detection value is received from the work vehicle sensor device 12.

[0088] (Process flow for accepting use of work vehicle 1) 22 is a diagram showing an example of a processing flow for the server 2 to accept registration for use of the work vehicle 1. Hereinafter, an example of a processing flow for the server 2 to accept registration for use of the work vehicle 1 will be described with reference to FIG.

[0089] At T41, the usage acceptance unit 24 receives a request for use of the work vehicle 1 from the tablet terminal 3. At T42, the usage acceptance unit 24 transmits a usage acceptance screen 241 to the tablet terminal 3 that made the usage request at T41. At T43, the name of the vehicle to be used, the name of the company to be used, and the user name are entered into the usage acceptance screen 241 displayed on the tablet terminal 3. The usage acceptance unit 24 receives usage information from the tablet terminal 3, including the information entered into the usage acceptance screen 241. At T44, the usage acceptance unit 24 stores the usage information received at T43 in the usage status management table 263.

[0090] (Output flow of usage status confirmation screen 251) 23 is a diagram showing an example of a process flow for outputting the usage status confirmation screen 251 by the server 2. Hereinafter, the process for outputting the usage status confirmation screen 251 by the server 2 will be described with reference to FIG. An example of the processing flow will be described.

[0091] At T51, the output unit 25 receives a usage status confirmation request from the tablet terminal 3. At T52, in response to the usage status confirmation request received at T51, the output unit 25 generates a usage status confirmation screen 251 based on the information stored in the work vehicle management table 262 and the usage status management table 263. At T53, the output unit 25 transmits the usage status confirmation screen 251 generated at T52 to the tablet terminal 3. The tablet terminal 3 outputs the usage status confirmation screen 251 received from the server 2 to the display 301.

[0092] (Effects of the embodiment) In this embodiment, the usage status is grouped by contractor name and individual name and output on the usage status confirmation screen 251. Therefore, according to this embodiment, it is possible to visually and easily display which worker is using the work vehicle 1.

[0093] In this embodiment, the work vehicle sensor device 12 is provided on the aerial work platform 11 of the work vehicle 1. Therefore, even if the work vehicle 1 is not moving, as long as the aerial work platform 11 is raised and lowered in accordance with the work, the acceleration sensor 1203 of the work vehicle sensor device 12 can detect the acceleration of the aerial work platform 11 when it is raised and lowered. In other words, according to this embodiment, the operating status of the work vehicle 1 can be obtained even when the work vehicle 1 is not moving. Note that in cases where it is not necessary to detect the raising and lowering of the aerial work platform 11, the work vehicle sensor device 12 may be provided, for example, at a location other than the aerial work platform 11 of the work vehicle 1.

[0094] In this embodiment, the reference sensor device 13 transmits detection values ​​indicating atmospheric pressure to the server 2 at a high frequency of once every five seconds. Each time the server 2 receives a detection value from the reference sensor device 13, it updates the atmospheric pressure corresponding to each floor of the building 4 based on the atmospheric pressure indicated by the detection value received from the reference sensor device 13. Even in the same location, atmospheric pressure fluctuates under various conditions. According to this embodiment, the atmospheric pressure corresponding to each floor can be updated in accordance with fluctuations in atmospheric pressure at the location where the reference sensor device 13 is installed, thereby enabling the position of the work vehicle 1 to be detected with high accuracy.

[0095] In this embodiment, the work vehicle sensor device 12 transmits detection values ​​indicating atmospheric pressure and detection values ​​indicating acceleration to the server 2 at a low frequency of once every 60 minutes. Therefore, compared to when detection values ​​are transmitted at a high frequency, the life of the battery 1204 of the work vehicle sensor device 12 can be extended, i.e., the frequency of replacing the battery 1204 can be reduced. For example, if two AA batteries are used as the battery 1204, the frequency of replacing the AA batteries can be reduced to about once a year.

[0096] In this embodiment, the various sensors provided on the work vehicle 1 are packaged as a work vehicle sensor device 12. Therefore, according to this embodiment, by providing the work vehicle sensor device 12 on the work vehicle 1, the server 2 can obtain the operating status of the work vehicle 1 and the floor on which the work vehicle 1 is located.

[0097] <Modification> In the embodiment, the work vehicle sensor device 12 is equipped with two sensors, an atmospheric pressure sensor 1202 and an acceleration sensor 1203. However, the sensors equipped in the work vehicle sensor device 12 are not limited to these, and the work vehicle sensor device 12 may be equipped with other sensors. The work vehicle sensor device 12 may further be equipped with, for example, a Global Positioning System (GPS) sensor. By equipping the work vehicle sensor device 12 with a GPS sensor, the server 2 can, in addition to identifying the floor on which the work vehicle 1 is located (identifying the position in the vertical direction) using the atmospheric pressure sensor 1202, determine the position of the work vehicle 1 on the same floor. It is also possible to specify the position (horizontal position).

[0098] In the embodiment, the reference sensor device 13 is installed on the first floor of the building 4, but the reference sensor device 13 may be installed on a floor other than the first floor. In this case, the position of the reference sensor device 13 (the floor on which it is installed) may be stored in the auxiliary memory unit 203 of the server 2.

[0099] In the embodiment, the microcomputer 1201 of the work vehicle sensor device 12 suppresses transmission of the detection value of the acceleration sensor 1203 to the server 2 when the detection value of the acceleration sensor 1203 is below the threshold. However, the microcomputer 1201 may transmit the detection value of the acceleration sensor 1203 to the server 2 even if it is below the threshold. In this case, the server 2 may determine that the work vehicle 1 is not operating when the received detection value of the acceleration sensor 1203 (or the acceleration indicated by the detection value) is below the threshold.

[0100] The usage reception screen 241 may further be provided with a time period specification field for accepting specification of the time period for using the work vehicle 1. The time period may, for example, be a specific start time and end time, or may be specified as morning or afternoon. When the usage reception screen 241 accepts specification of the time period, the time period may also be displayed on the usage status confirmation screen.

[0101] A two-dimensional code may be used to accept use of the work vehicle 1. For example, a two-dimensional code including information indicating the vehicle name of the work vehicle 1 is attached to each work vehicle 1. Then, the tablet terminal 3 may accept use of the work vehicle 1 by using the camera 303 to photograph the two-dimensional code attached to the work vehicle 1.

[0102] In the embodiment, the work vehicle sensor device 12 and the reference sensor device 13 transmitted detection values ​​at intervals set for each, but the timing at which the work vehicle sensor device 12 and the reference sensor device 13 transmit detection values ​​is not limited to the intervals set for each. For example, the work vehicle sensor device 12 and the reference sensor device 13 may transmit detection values ​​in response to instructions from the tablet terminal 3. If the battery 1204 provided in the work vehicle sensor device 12 has sufficient remaining capacity, there is no problem with transmitting detection values ​​at a high frequency; rather, it becomes possible to check the operating status and position of the work vehicle 1 at the desired timing.

[0103] In the embodiment, the operation status confirmation screen 252 displays an operation status icon 253 that schematically indicates the operation status of each work vehicle 1. The operation status icon 253 makes it possible to visually grasp the operation status of each work vehicle 1. By making it possible to grasp the operation status of the work vehicle 1, it becomes possible to grasp, for example, a work vehicle 1 that is registered for use but is not in operation, and this can also be used to alert workers to make appropriate usage registrations, such as not registering for use more than necessary. Furthermore, when a vehicle is registered for use but is not in operation, the operation status icon 253 may be displayed in a way that makes this easily apparent, for example, by displaying it in a different color.

[0104] In the embodiment, a tablet terminal 3 is used, but the portable information processing device used by the worker in the work vehicle management system 100 is not limited to the tablet terminal 3. The portable information processing device used by the worker may be, for example, a smartphone, a mobile phone, a notebook personal computer, or a wearable terminal.

[0105] The embodiments and modifications disclosed above can be combined with each other.

[0106] <Computer-readable recording medium> A computer or other machine or device (hereinafter referred to as a computer, etc.) that performs any of the above functions. An information processing program that realizes the functions can be recorded on a recording medium that can be read by a computer, etc. Then, the program can be read and executed by a computer, etc., to provide the functions.

[0107] Here, a computer-readable recording medium refers to a recording medium that stores information such as data and programs electrically, magnetically, optically, mechanically, or chemically and that can be read by a computer. Among such recording media, those that are removable from a computer include, for example, flexible disks, magneto-optical disks, Compact Disc Read Only Memory (CD-ROM), Compact Disc Recordable (CD-R), Compact Disc Rewriteable (CD-RW), Digital Versatile Disc (DVD), Blu-ray Disc (BD), Digital Audio Tape (DAT), 8mm tape, and memory cards such as flash memory. Furthermore, examples of recording media that are fixed to a computer include hard disks and ROMs. [Explanation of symbols]

[0108] 1. Work vehicle 2. Server 3. Tablet device 4. Building 11. Aerial work platform 12. Work vehicle sensor device 13. Reference sensor device 21. Calculation section 22...Position acquisition unit 23. Operation status acquisition unit 24. Reception Desk 25 Output section 26··Administrative Database N1: First radio link N2: Second radio link 100··Work vehicle management system 201 CPU 202...Main memory 203...Auxiliary storage section 204··1st Communications Department 205··Second Communications Department 241··User registration screen 251··Usage status confirmation screen 252··Operation status confirmation screen 253··Operation status icon 261 Floor and pressure management table 262 Work vehicle management table 263 Usage Management Table 301··Display 302··Touch Panel 303··Camera 1201··Microcomputer 1202··Barometric pressure sensor 1203 Accelerometer 1204 Battery 1205 Switch 2411··Vehicle name input field 2412··Enter the name of the business 2413··User name input field 2414··Comment section 2415··Register button 2511··Building Image 2512··Layered image 2513 Usage Table 2531...Background area 2532 Operational Status 2533 Operational Status 2534 Operational Status 2535 Operational Status 2536··Comment mark 2537··Caution mark

Claims

1. A work vehicle management system for managing work vehicles used in work within a building, an operation status acquisition unit that acquires the operation status of the work vehicle; an output unit that outputs information indicating the operating status of the work vehicle on each of a plurality of past days on the same screen; Work vehicle management system.

2. The output unit outputs the information in different display modes depending on whether the work vehicle is operating. The work vehicle management system according to claim 1 .

3. The output unit outputs the information in different colors depending on the operating status of the work vehicle. The work vehicle management system according to claim 1 .

4. The building has multiple floors, The work vehicle management system further includes a location acquisition unit that acquires the floor on which the work vehicle is located, The output unit further outputs, to the same screen, a floor on which the work vehicle is arranged. The work vehicle management system according to claim 1 .

5. A work vehicle management method for managing work vehicles used in work within a building, comprising: an operation status acquisition process for acquiring an operation status of the work vehicle; an output process for outputting information indicating the operational status of the work vehicle on each of a plurality of past days on the same screen, executed by a computer; Work vehicle management methods.

6. A work vehicle management system for managing work vehicles used in work within a building having multiple floors, a location acquisition unit that acquires the floor on which the work vehicle is located; a reference sensor disposed on a first floor of the building to detect air pressure on the first floor; , and The position acquisition unit Calculating the atmospheric pressure corresponding to each floor of the building based on the atmospheric pressure detected by the reference sensor; acquiring the floor on which the work vehicle is located based on the detected value from a pressure sensor provided on the work vehicle and the calculated pressure; the reference sensor transmits the detected air pressure at a first interval; the air pressure sensor transmits the detection value at a second interval longer than the first interval; Work vehicle management system.

7. The reference sensor operates on power supplied from an outlet installed in the building, The air pressure sensor is powered by a battery. The work vehicle management system according to claim 6 .

8. When the air pressure sensor receives a transmission instruction, it transmits the detection value even if the second interval has not elapsed. The work vehicle management system according to claim 6 .

9. A work vehicle management method for managing work vehicles used in work within a building having multiple floors, comprising: a reference sensor is disposed on a first floor of the building to detect air pressure on the first floor and transmit the detected air pressure at a first interval; The work vehicle management method includes: A calculation process for calculating the atmospheric pressure corresponding to each floor of the building based on the atmospheric pressure detected by the reference sensor; a position acquisition process executed by a computer to acquire the floor on which the work vehicle is located based on the calculated atmospheric pressure and detection values ​​transmitted at second intervals longer than the first intervals from an atmospheric pressure sensor provided on the work vehicle; Work vehicle management methods.

10. A reference sensor disposed on a first floor in a building having multiple floors, a detection process for detecting the air pressure of the first layer; a transmission process of transmitting the detected atmospheric pressure at predetermined intervals; Reference sensor.

11. A barometric pressure sensor provided on a work vehicle used for work inside a building, A process of detecting the air pressure at a location where the work vehicle is installed; a transmission process for transmitting a detection value indicating the detected atmospheric pressure at predetermined intervals. Barometric pressure sensor.

12. When the atmospheric pressure sensor receives a transmission instruction, it transmits the detected value even if the predetermined interval has not elapsed. The barometric pressure sensor according to claim 11.

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