Work vehicle management system, work vehicle management method, work vehicle management program, and sensor device

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 Art

[0002] At a construction site, work vehicles such as transport vehicles for transporting materials and aerial work platforms are used. These work vehicles are shared by a plurality of 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

Patent Document 2

Patent Document 3

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in the conventional method of managing work vehicles, it has not been easy to visually understand the users who use the work vehicles and the positions of the work vehicles. Therefore, it has not been easy for users to confirm the work vehicles they use before work.

[0005] One aspect of the disclosed technology aims to display visually and easily understand which user is using a work vehicle.

Means for Solving the Problems

[0006] One aspect of the disclosed technology is exemplified by a work vehicle management system as follows. This work vehicle management system is a work vehicle management system that manages work vehicles used in 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 a pressure sensor provided 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 provided on the work vehicle, a utilization reception unit that receives a utilization registration associating the vehicle name indicating the work vehicle with the user name indicating the user who uses the work vehicle, and an output unit that outputs a floor image showing the multiple floors of the building and groups and outputs the utilization status in which the operation status, the vehicle name, and the user name of the work vehicle are associated with each other by the user name on the floor where the work vehicle is located in the output floor image.

[0007] According to such a work vehicle management system, since the utilization status of the work vehicle is displayed grouped by user name on each floor in the floor image of the building, it is easy to visually understand and display which user uses the work vehicle. Therefore, the user can easily grasp the work vehicle that he / she uses. Note that the user may be a group such as a contractor or an individual.

[0008] The disclosed technology may further have the following features. The work vehicle is an aerial work vehicle equipped with an elevating aerial work platform, and the acceleration sensor is provided on the aerial work platform. By having such a feature, the disclosed technology can detect the elevation of the aerial work platform as acceleration even when the work vehicle is not moving. Therefore, the disclosed technology can more accurately grasp the operation status of the aerial work vehicle. The operation status of the aerial work vehicle can be grasped more accurately.

[0009] Further, the disclosed technology may have the following features. A reference sensor for detecting the air pressure of the first floor of the building may be provided on the first floor of the building. Then, based on the air pressure detected by the reference sensor, the position acquisition unit calculates the air pressure corresponding to each floor of the building, and based on the detection value from the air pressure sensor provided on the work vehicle and the calculated air pressure, acquires the floor on which the work vehicle is arranged. By having such a feature, the disclosed technology can calculate the air pressure on each of the multiple floors without measuring the air pressure on each of the multiple floors.

[0010] Further, in the disclosed technology, the reference sensor operates on power supplied from an outlet installed in the building, each of the acceleration sensor and the air pressure sensor operates on power supplied from a battery, the reference sensor transmits the detected air pressure at a first interval, and each of the acceleration sensor and the air pressure sensor may transmit the detection value at a second interval longer than the first interval. By each of the acceleration sensor and the air pressure sensor transmitting the detection value at a second interval longer than the first interval, the power consumed by the acceleration sensor and the air pressure sensor can be suppressed, and thus the frequency of battery replacement can be reduced.

[0011] Further, the disclosed technology may have the following features. The position acquisition unit may acquire the floor on which the work vehicle is arranged based on the detection value of the air pressure sensor provided on the work vehicle and the detection value of the GPS sensor. By having such a feature, the disclosed technology can acquire the position of the work vehicle in the horizontal direction in addition to the height direction.

[0012] The above-disclosed technology can also be understood from the aspect of a work vehicle management method, a work vehicle management program, and a sensor device used in the above work vehicle. This sensor device is a sensor device used in a work vehicle used for work in a building having a plurality of floors, and includes an acceleration sensor that detects acceleration, a pressure sensor that detects air pressure, and a control unit that transmits the detection values detected by at least the pressure sensor at predetermined intervals. When the detection value detected by the acceleration sensor is equal to or greater than a threshold value, the control unit transmits the detection value detected by the pressure sensor and the detection value detected by the acceleration sensor. When the detection value detected by the acceleration sensor is less than the threshold value, the control unit may transmit the detection value detected by the pressure sensor. According to such a sensor device, the position of the work vehicle can be detected by the pressure sensor, and the operating state of the work vehicle can be detected by the acceleration sensor.

Effect of the Invention

[0013] According to the disclosed technology, it is possible to visually and easily display which user is using the work vehicle.

Brief Description of the Drawings

[0014]

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DETAILED DESCRIPTION OF THE INVENTION

[0015] <Embodiment> Hereinafter, embodiments will be described with reference to the drawings. The configurations of the embodiments shown below are examples, and the disclosed technology is not limited to the configurations of the embodiments. 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 for managing a work vehicle 1 used in the construction work of a 13-story building 4. The work vehicle management system 100 includes 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 a plurality of 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 for carrying an operator. The aerial work platform 11 is movable up and down according to the height of the work target. A work vehicle sensor device 12 is provided on the aerial work platform 11. The work vehicle sensor device 12 includes, for example, various sensors for detecting the operating status of the work vehicle 1 and the 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 for measuring the barometric pressure of the installed floor, and transmits the detection value by the barometric pressure sensor to the server 2 via the first wireless link N1. The first floor of the building 4 is an example of a "first floor". - transmits the detection value by the sensor to the server 2 via the first wireless link N1.

[0018] Server 2 is an information processing device. Server 2 receives and stores the detection values of sensors acquired by the work vehicle sensor devices 12 provided in each of the work vehicles 1 via the first wireless link N1. In addition, Server 2 accepts the use registration of the work vehicle 1 from the tablet terminal 3 via the second wireless link N2, and stores the use information indicating the accepted use registration. Server 2 provides the work vehicle information based on the stored sensor detection values and use information to the tablet terminal 3 via the second wireless link N2 so that it can be browsed.

[0019] The tablet terminal 3 is a portable information processing device used by an operator at a construction site. The tablet terminal 3 displays the work vehicle information provided from the server 2 on the display via the second wireless link N2. In addition, the tablet terminal 3 transmits the use registration of the work vehicle 1 to the server 2 in response to an operation by the operator.

[0020] (Hardware Configuration of Server 2) FIG. 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 storage unit 203, a first communication unit 204, and a second communication unit 205. The CPU 201, the main memory unit 202, the auxiliary storage unit 203, the first communication unit 204, and the second communication unit 205 are interconnected by a connection bus.

[0021] The CPU 201 is also called a microprocessor unit (MPU) or a processor. The CPU 201 is not limited to a single processor, and may have a multiprocessor configuration. Also, a single CPU 201 connected by a single socket may have a multi-core configuration. In Server 2, the CPU 201 expands the program stored in the auxiliary storage unit 203 into the working area of the main memory unit 202, and controls peripheral devices through the execution of the program. Thereby, Server 2 can execute processing that meets a predetermined purpose.

[0022] The main memory unit 202 is exemplified as a memory unit directly accessible from the CPU 101. The main memory unit 202 includes a Random Access Memory (RAM) and a Read Only Memory (ROM).

[0023] The auxiliary storage unit 203 reads and writes various programs and various data to a recording medium. 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. External devices, etc. include, for example, other information processing devices and external storage devices connected by a computer network or the like. Note that the auxiliary storage unit 203 may be a part of a cloud system that is a group of computers on a network, for example.

[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. Also, 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. Also, 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. The first communication unit 204 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). The second communication unit 205 communicates with the tablet terminal 3 via a second wireless link N2 realized by the wireless LAN.

[0027] Server 2 may further include an input unit that receives operation instructions and the like from a user or the like. 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] Server 2 may be provided with an output unit that outputs data processed by the CPU 201 and data stored in the main memory unit 202, for example. Examples of such an output unit include output devices such as a Cathode Ray Tube (CRT) display, a Liquid Crystal Display (LCD), a Plasma Display Panel (PDP), an Electroluminescence (EL) panel, an organic EL panel, or a printer.

[0029] (Hardware Configuration of Tablet Terminal 3) FIG. 3 is a diagram showing an example of the hardware configuration of tablet terminal 3. Tablet terminal 3 includes a CPU 201, a main memory unit 202, an auxiliary storage unit 203, a second communication unit 205, a display 301, a touch panel 302, and a camera 303. The same components as those of server 2 are denoted by the same reference numerals, and their descriptions are omitted. In 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 arranged to overlap on the display 301. The touch panel 302 detects contact by a finger and acquires the coordinate value of the contact position. The touch panel 302 notifies the CPU 201 of the acquired coordinate value of the contact position and the time information. By arranging the touch panel 302 on the display 301, the tablet terminal 3 can provide an intuitive operation to the operator.

[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. The camera 303 can capture still images and moving images.

[0033] (Hardware Configuration of the Work Vehicle Sensor Device 12) FIG. 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, a pressure sensor 1202, an acceleration sensor 1203, a battery 1204, a switch 1205, and a first communication unit 204.

[0034] The microcomputer 1201 is a microcomputer. The microcomputer 1201 is, for example, a combination of a processor and a storage unit. The microcomputer 1201 is, for example, a Microcontroller Unit (MCU), System-on-a-chip (SoC), System Large Scale Integration (LSI), chipset, etc. may be used. Note that the microcomputer 1201 includes a storage unit. In the storage unit of the microcomputer 1201, for example, the vehicle name indicating the work vehicle 1 is stored.

[0035] The pressure sensor 1202 is a sensor that detects pressure. The pressure sensor 1202 is, for example, a semiconductor piezoresistive pressure sensor. The pressure sensor 1202 detects the 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, even when the work vehicle 1 is not moving, if the aerial work platform 11 is ascending or descending, the acceleration sensor 1203 detects the acceleration of the aerial work platform 11.

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

[0038] Note that for the detection value of the acceleration sensor 1203, the microcomputer 1201 does not necessarily need to transmit it if it is less than a preset threshold value. In the work vehicle sensor device 12, for example, it may be set such that an interruption occurs when the detection value indicating the acceleration by the acceleration sensor 1203 is equal to or greater than the threshold value. Then, when an interruption occurs, the microcomputer 1201 may associate the detection value indicating the air pressure by the air pressure sensor 1202 and the detection value indicating the acceleration by the acceleration sensor 1203 with the vehicle name of the work vehicle 1 and transmit them to the server 2. Also, when no interruption occurs, the microcomputer 1201 may associate the detection value indicating the air pressure by the air pressure sensor 1202 with the vehicle name of the work vehicle 1 and transmit it to the server 2 via the first communication unit 204.

[0039] Furthermore, the microcomputer 1201 may detect the remaining amount of the battery 1204 and transmit the detected remaining amount to the server 2 together with the detection values of the pressure sensor 1202 and the acceleration sensor 1203. The work vehicle sensor device 12 transmits at a relatively long interval of 60 minutes, thereby realizing low power consumption of the work vehicle 1, that is, 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 may be set to 30 minutes, 90 minutes, etc. so that the remaining amount of the battery 1204 is maintained during the working hours of one day (for example, 1 hour) or during a predetermined period such as one week. The microcomputer 1201 is an example of a "control unit".

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

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

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

[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, at a predetermined interval (for example, every 5 seconds), the detection value indicating the atmospheric pressure obtained by the atmospheric pressure sensor 1202 to the server 2 via the first communication unit 204. Since the reference sensor device 13 receives power supply from the outlet installed in the building 4 as described above, it does not need to consider power saving. Therefore, the reference sensor device 13 can detect the atmospheric pressure at a shorter interval than the work vehicle sensor device 12 and transmit the detection value indicating the detected atmospheric pressure.

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

[0045] The management database 26 is a database that manages the correspondence relationship between the number of floors, height, and atmospheric pressure of the building 4 and the usage status of the aerial work platform 11. FIG. 7 is a diagram showing an example of the floor number - atmospheric pressure management table 261 stored in the management database 26. The floor number - atmospheric pressure management table 261 includes columns of "Floor number", "Height (mm)", and "Atmospheric pressure (Pa)". Information indicating each floor of the building 4 is stored in the "Floor number" column. Information indicating the floor height (ground height) of each floor of the building 4 measured in advance (or in design) is stored in the "Height (mm)" column. The unit is "mm (millimeter)". Information indicating the atmospheric pressure corresponding to each floor is stored in the "Atmospheric pressure (Pa)" column. The unit is "Pa (pascal)". The floor number - atmospheric pressure management table 261 associates each floor of the building 4 with the 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 items of "vehicle name", "location", "operation status", "remaining capacity", and "update date and time". In the "vehicle name", the name attached to the work vehicle 1 is stored. In the "location", information indicating the location where the work vehicle 1 exists is stored. For example, when the work vehicle 1 exists on the third floor of Building 4 three times, "third floor" is stored in the "location". In the "operation status", information indicating the operation status of the work vehicle 1 is stored. The information indicating the operation status is, for example, "operating" or "stopped". In the "remaining capacity", information indicating the remaining capacity of the battery 1204 of the work vehicle sensor device 12 mounted on the work vehicle 1 is stored. Examples of the information indicating the remaining capacity of the battery 1204 include 100 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 items of "ID", "vehicle name", "company name", "personal name", and "comment". In the "ID", an ID for identifying the usage status of each work vehicle 1 is stored. In the "vehicle name", the name of the work vehicle 1 is stored. In the "company name", the name of the company to which the worker using the work vehicle 1 belongs is stored. In the "personal name", the name of the worker using the work vehicle 1 is stored. In the "comment", comments such as information about the work vehicle 1 and information about construction work are stored. In the "comment", for example, on the day before the usage date, etc., an adjustment meeting may be held among companies or workers to determine who will use which work vehicle 1, and comments based on the decision may be registered. For example, by registering a comment such as "hoping to use from ○○ date" in the "comment", the vehicle allocation of the work vehicle 1 can be performed considering this comment in the adjustment meeting. The "personal name" is an example of the "worker name".

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

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

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

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

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

[0053] A position acquisition unit 22 acquires the position of the work vehicle 1 based on the air pressure detected by a work vehicle sensor device 12. The position acquisition unit 22 receives, from the work vehicle sensor device 12, a detection value indicating the air pressure detected by an air pressure sensor 1202. The position acquisition unit 22 refers to the floor-pressure management table 261 and acquires the floor number corresponding to the air pressure indicated by the detection value received from the work vehicle sensor device 12. The position acquisition unit 22 may set the acquired floor number as the position of the work vehicle 1. The position acquisition unit 22 stores, in a work vehicle management table 262, the floor number where the work vehicle 1 is located in association with the vehicle name of the work vehicle 1.

[0054] Note that, as described above, the work vehicle sensor device 12 is provided on the elevated work platform 11 of the work vehicle 1. Therefore, when the elevated work platform 11 is near the ceiling, it is conceivable that the air pressure indicated by the detection value received from the work vehicle sensor device 12 is closer to the air pressure corresponding to the floor above the floor where the work vehicle 1 is located. Therefore, in the floor number - air pressure management table 261, if it is determined that 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 is the floor where the work vehicle 1 is located, there is a risk of misdetecting the position of the work vehicle 1. Thus, 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 the certain floor, the position acquisition unit 22 may determine that the work vehicle 1 is present on the certain floor.

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

[0056] The reception unit 24 receives a use registration that associates the work vehicle 1 with the name of the operator who uses the work vehicle 1. For example, in response to a request from the tablet terminal 3, the use reception unit 24 transmits a use reception screen to the tablet terminal 3. FIG. 12 is a diagram showing an example of the use reception screen 241 output by the use reception unit 24. The use reception screen 241 includes a use vehicle name input field 2411, a use company name input field 2412, a user name input field 2413, a comment entry field 2414, and a registration button 2415. The use vehicle name input field 2411 is, for example, a drop-down menu, and it may be possible to select the vehicle name of the work vehicle 1 that is not being used. Information is input into each of the input fields of the use vehicle name input field 2411, the use company name input field 2412, and the user name input field 2413 of the use reception screen 241 displayed on the tablet terminal 3 by, for example, the operator who uses the work vehicle 1. That is, the vehicle name of the work vehicle 1 used by the operator is input into the use vehicle name input field 2411. The name of the company to which the operator belongs is input into the use company name input field 2412. The personal name of the operator is input into the user name input field 2413. Comments such as information about the work vehicle 1 or information about construction work are input into the comment input field 2414. When the registration button 2415 is pressed with information input into each of the input fields of the use vehicle name input field 2411, the use company name input field 2412, the user name input field 2413, and the comment input field 2414, use information including the information input into each input field is transmitted from the tablet terminal 3 to the server 2 via the second wireless link N2.

[0057] When the reception 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 reception unit 24 stores the information entered in the vehicle name input field 2411 of the usage reception screen 241 in the "vehicle name" of the usage status management table 263. The usage reception unit 24 stores the information entered in the business name input field 2412 of the usage reception screen 241 in the "business name" of the usage status management table 263. The usage reception unit 24 stores the information entered in the personal name input field 2413 of the usage reception screen 241 in the "personal name" of the usage status management table 263. The usage reception unit 24 stores the information entered in the comment input field 2414 in the "comment" of the usage status management table 263. Through such processing, the usage reception 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, it generates a usage status confirmation screen based on the information stored in the work vehicle management table 262 and the usage status management table 263. Then, the output unit 25 transmits the generated usage status confirmation screen to the tablet terminal 3.

[0059] FIG. 13 is a diagram showing an example of the 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 the building 4. In the building image 2511, a floor image 2512 that schematically shows each floor of the building 4 is shown. The output unit 25 arranges a usage status table 2513 showing the usage status of the work vehicle in the floor image 2512 showing 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 business name, and further sorted by personal name.

[0060] Sorted by the name of the business operator, a list of usage status is displayed with grouping for each business operator. Also, sorted by personal name among each business operator name, a list of usage status is displayed with grouping for each personal name within each business operator. And at the boundary of each business operator name, a boundary line 2514 is attached. By showing the boundary lines of each business operator by the boundary line 2514, it becomes easier to understand which operator uses which work vehicle 1. Note that the boundary line 2514 may be omitted.

[0061] As another example of the method of grouping and displaying by business operator, the output unit 25 may display a usage status table 2513 with the business operator name as the major item. FIG. 14 is a diagram showing a usage status confirmation screen 251 with the business operator name as the major item. The business operator name may be a major item including one or more combinations of personal name, vehicle name, and operating status. Also with such a usage status table 2513, a list of usage status can be displayed with grouping for each business operator.

[0062] Note that the output unit 25 may change the order of the information displayed on the usage status confirmation screen 251 according to the operator's operation. FIG. 15 is a diagram showing another example of the usage status confirmation screen 251. In FIG. 15, the list of usage status is sorted by personal name, and further sorted by business operator name. As a result, the order in the first layer of the usage status table 2513 is different between FIG. 13 and FIG. 15. Thus, the output unit 25 may change the priority order of the keys used for sorting according to the operator's operation.

[0063] The output unit 25 may further output a status display screen that displays the operating status of the work vehicle 1 stored in the work vehicle management table 262. FIG. 16 is a diagram showing an example of the operating status confirmation screen 252 output by the output unit 25. The operating status confirmation screen 252 includes items of "floor number", "work vehicle", and "number of units". In the "floor number", information indicating the floor number where the work vehicle 1 exists in the building 4 is displayed. In the "work vehicle 1", an operation status icon 253 that schematically shows the respective operating statuses of the work vehicle 1 is displayed. One operation status icon 253 schematically shows the operating status of one work vehicle 1. That is, the operation status icons 253 are displayed in the same number as the number of work vehicles 1 existing on each floor. In the "number of units", the total number of work vehicles 1 existing on each floor is displayed. That is, on the operation status confirmation screen 252, the operating status of the work vehicle 1 and the number of work vehicles 1 are displayed for each floor number where the work vehicle 1 exists.

[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. In the background area 2531, the vehicle name of the work vehicle 1 and the name of the contractor using the work vehicle 1 are displayed. The background area 2531 further indicates the remaining capacity of the battery 1204 of the work vehicle sensor device 12 by its background color. 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 the threshold value, or "red" if it is less than the threshold value.

[0065] Each of the operation status 2532, operation status 2533, operation status 2534, and operation status 2535 is an icon that shows the operation status of the work vehicle 1 in 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 is operating and "yellow" when it is not operating. The operation status 2532 shows the operation status of the work vehicle 1 on the current day. The operation status 2533 shows the operation status of the work vehicle 1 one day before. The operation status 2534 shows the operation status of the work vehicle 1 two days before. The operation status 2535 shows the operation status of the work vehicle 1 three days before. The operation status confirmation screen 252 can show the operation status of the work vehicle 1 over a four-day period including the current day based on 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 specified operation on the comment mark 2536, the comment stored in the usage status management table 263 is displayed in a balloon or the like. The attention mark 2537 is a mark that is displayed when detection values from the work vehicle sensor device 12 have not been received for three or more days. When the attention mark 2537 is displayed, it becomes possible to recognize the possibility of an abnormality in communication.

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

[0068] At T1, initial settings are made. In the initial settings, for example, calibration of the pressure sensor 1202 and registration of the server 2 as the destination of the detection value are performed. Details of the calibration will be described later.

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

[0070] In T4, the microcomputer 1201 determines whether 5 seconds have elapsed since the previous transmission of the detection value. If 5 seconds have elapsed (YES in T4), the process returns to T2, and the measurement of the air pressure (T2) and the transmission of the detection value (T3) are performed. If 5 seconds have not elapsed (NO in T4), the process of T4 is repeated.

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

[0072] In T11, initial settings are performed. In the initial settings, for example, calibration of the pressure sensor 1202 and the acceleration sensor 1203, and registration of the server 2 as the transmission destination of the detection value are performed. Also, a threshold value (threshold value for the detection value of the acceleration sensor 1203) for generating an interruption is set. Details of the calibration will be described later.

[0073] In T12, the pressure sensor 1202 measures the air pressure. Also, the acceleration sensor 1203 measures the acceleration. If an interruption occurs, that is, if the detection value indicating the acceleration detected in T12 is equal to or greater than the threshold value (YES in T13), the process proceeds to T14. If no interruption occurs, that is, if the detection value indicating the acceleration detected in T12 is less than the threshold value (NO in T13), the process proceeds to T15.

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

[0075] In 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] In T16, the microcomputer 1201 determines whether the switch 1205 has been pressed. If it has been pressed (YES in T16), the process returns to T12, and the measurement of the atmospheric pressure and acceleration (T12) and the transmission of the detection value (T14, T15) are performed. If it has not been pressed (NO in T16), the process proceeds to T15.

[0077] In T17, the microcomputer 1201 determines whether 60 minutes have elapsed since the previous transmission of the detection value. If 60 minutes have elapsed (YES in T17), the process returns to T12, and the measurement of the atmospheric pressure and acceleration (T12) and the transmission of the detection value (T14, T15) are performed. If 60 minutes have not elapsed (NO in T17), the process returns to T16.

[0078] (Calibration) Due to the individual differences between the work vehicle sensor device 12 and the reference sensor device 13, even when measuring the same atmospheric pressure, the detection values of the respective sensors may be different. The difference in the detection values due to such individual differences has a range of, for example, about ±30 Pa. Therefore, if such individual differences are left unaddressed during operation, the detection accuracy of the position of the work vehicle 1 by the server 2 will decrease. Therefore, sensor calibration is performed as in T1 of FIG. 18 and T11 of FIG. 19. In calibration, with the work vehicle sensor device 12 and the reference sensor device 13 arranged on the same floor (at the same height), the atmospheric pressure is measured simultaneously by each sensor. Then, calibration is performed on the detection values of each sensor so that the detection values of each sensor indicate the same atmospheric pressure. Then, each of the work vehicle sensor device 12 and the reference sensor device 13 whose detection values have been calibrated is arranged on a predetermined floor of the building 4.

[0079] (Process flow for constructing the floor number - atmospheric pressure management table 261) FIG. 20 is an example of a processing flow of the floor number and air pressure management table 261 by the server 2. Hereinafter, with reference to FIG. 20, an example of the processing flow of the floor number and air pressure management table 261 by the server 2 will be described.

[0080] In T21, the calculation unit 21 receives the registration of the height of each floor, and stores the received height of each floor in the floor number and air pressure management table 261. Further, the calculation unit 21 receives the registration of the floor number where the reference sensor device 13 is installed, and stores the received floor number in the auxiliary storage unit 203. In the present embodiment, the reference sensor device 13 is installed on the first floor of the building 4. Therefore, the calculation unit 21 stores in the auxiliary storage unit 203 information indicating that the floor where the reference sensor device 13 is installed is the first floor.

[0081] In T22, the calculation unit 21 receives a detection value indicating the air pressure from the reference sensor device 13. In T23, the calculation unit 21 stores, as the air pressure corresponding to the floor where the reference sensor device 13 is installed in the floor number and air pressure management table 261, the air pressure indicated by the detection value received in T22. 。

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

[0083] In T25, the calculation unit 21 determines whether or not a detection value has been received from the reference sensor device 13. If received (YES in T25), the process returns to T23, and detection value storage (T23), air pressure calculation and storage for each floor (T24) are performed. If not received (NO in T25), the process of T25 is repeated. That is, in the processing flow of FIG. 20, each time a detection value is received from the reference sensor device 13, the air pressure associated with each floor in the floor number and air pressure management table 261 is updated.

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

[0085] In T31, the server 2 receives a detection value indicating air pressure and a detection value indicating acceleration from the work vehicle sensor device 12 together with the vehicle name of the work vehicle 1. In T32, the position acquisition unit 22 calculates the floor number where the work vehicle 1 is arranged based on the detection value indicating air pressure received in T31 and the floor number - air pressure management table 261. The management database 26 stores the calculated floor number in association with the vehicle name received in T31 in the work vehicle management table 262.

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

[0087] In T34, the server 2 determines whether it has received a detection value from the work vehicle sensor device 12. If received (YES in T34), the process returns to T32, and the position determination of the work vehicle 1, storage (T32), the operation status determination of the work vehicle 1, and storage (T33) are performed. If not received (NO in T34), the process of T34 is repeated. That is, in the processing flow of FIG. 21, each time a detection value is received from the work vehicle sensor device 12, the position and operation status of the work vehicle 1 in the work vehicle management table 262 are updated.

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

[0089] In T41, the usage reception unit 24 receives a request for using the work vehicle 1 from the tablet terminal 3. In T42, the usage reception unit 24 transmits a usage reception screen 241 to the tablet terminal 3 that requested usage in T41. In T43, the vehicle name for use, the name of the business operator, and the name of the user are input to the usage reception screen 241 displayed on the tablet terminal 3. The usage reception unit 24 receives usage information including these pieces of information input to the usage reception screen 241 from the tablet terminal 3. In T44, the usage reception unit 24 stores the usage information received in T43 in the usage status management table 263.

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

[0091] In T51, the output unit 25 receives a usage status confirmation request from the tablet terminal 3. In T52, 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 in response to the usage status confirmation request received in T51. In T53, the output unit 25 transmits the usage status confirmation screen 251 generated in 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] (Operational effects of the embodiment) In the present embodiment, on the usage status confirmation screen 251, the usage status is output with grouping by business operator name and personal name. Therefore, according to the present embodiment, it is possible to visually and clearly display which operator is using the work vehicle 1.

[0093] In this embodiment, the work vehicle sensor device 12 is provided on the elevated work platform 11 of the work vehicle 1. Therefore, even if the work vehicle 1 is not moving, if the elevated work platform 11 is moving up and down according to the work, the acceleration sensor 1203 of the work vehicle sensor device 12 can detect the acceleration when the elevated work platform 11 is moving up and down. That is, according to this embodiment, even in a situation where the work vehicle 1 is not moving, the operating status of the work vehicle 1 can be obtained. When it is not necessary to detect the raising and lowering of the elevated work platform 11, for example, the work vehicle sensor device 12 may be provided at a location other than the elevated work platform 11 of the work vehicle 1.

[0094] In this embodiment, the reference sensor device 13 transmits a detection value indicating the air pressure to the server 2 at a high frequency of once every 5 seconds. Each time the server 2 receives a detection value from the reference sensor device 13, based on the air pressure indicated by the detection value received from the reference sensor device 13, it updates the air pressure corresponding to each floor of the building 4. Even at the same location, the air pressure varies under various conditions. According to this embodiment, following the variation of the air pressure at the location where the reference sensor device 13 is installed, the air pressure corresponding to each floor can be updated, and thus the position of the work vehicle 1 can be detected with high accuracy.

[0095] In this embodiment, the work vehicle sensor device 12 transmits a detection value indicating the air pressure and a detection value indicating the acceleration to the server 2 at a low frequency of once every 60 minutes. Therefore, compared with the case of transmitting the detection value at a high frequency, the service life of the battery 1204 of the work vehicle sensor device 12 can be extended, that is, the replacement frequency of the battery 1204 can be reduced. For example, when two AA dry batteries are used as the battery 1204, the replacement frequency of the AA dry batteries can be about once a year.

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

[0097] <Modification Example> In the embodiment, the work vehicle sensor device 12 includes two sensors, namely, an air pressure sensor 1202 and an acceleration sensor 1203. However, the sensors included in the work vehicle sensor device 12 are not limited to these, and the work vehicle sensor device 12 may include other sensors. For example, the work vehicle sensor device 12 may further include a Global Positioning System (GPS) sensor. By providing the work vehicle sensor device 12 with a GPS sensor, in addition to identifying the floor on which the work vehicle 1 is located (identifying the position in the height direction) by the air pressure sensor 1202, the server 2 can also identify the position of the work vehicle 1 on the same floor (identifying the position in the horizontal direction). The position can also be identified.

[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 number on which it is installed) may be stored in the auxiliary storage unit 203 of the server 2.

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

[0100] On the usage reception screen 241, a time zone designation column for receiving the designation of the time zone during which the work vehicle 1 is to be used may be further provided. The time zone may, for example, specifically specify the start time to the end time, or may specify morning or afternoon. When the usage reception screen 241 receives the designation of the time zone, the time zone may also be displayed on the usage status confirmation screen.

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

[0102] In the embodiment, the work vehicle sensor device 12 and the reference sensor device 13 transmit the detection values at set intervals respectively, but the timing at which the work vehicle sensor device 12 and the reference sensor device 13 transmit the detection values is not limited to the set intervals respectively. For example, the work vehicle sensor device 12 and the reference sensor device 13 may transmit the detection values in response to an instruction from the tablet terminal 3. When there is a sufficient remaining capacity in the battery 1204 provided in the work vehicle sensor device 12, there is no problem in transmitting the detection values frequently. Rather, the operating status and position of the work vehicle 1 can be confirmed at a desired timing.

[0103] In the embodiment, on the operation status confirmation screen 252, an operation status icon 253 that schematically shows the operation status of each of the work vehicles 1 is displayed. The operation status of each of the work vehicles 1 can be visually grasped by the operation status icon 253. By making it possible to grasp the operation status of the work vehicle 1, for example, it becomes possible to grasp a work vehicle 1 that is non-operational while there is a use registration, and it can also be used to alert the operator to perform appropriate use registration, such as not making more use registrations than necessary. Further, when the work vehicle 1 is non-operational while there is a use registration, the operation status icon 253 may be displayed in a manner that makes it easily understandable, for example, in a different color.

[0104] In the embodiment, the tablet terminal 3 is used, but the portable information processing device used by the operator in the work vehicle management system 100 is not limited to the tablet terminal 3. The portable information processing device used by the operator 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> An information processing program for causing a computer or other machine or device (hereinafter referred to as a computer or the like) to implement any of the above functions can be recorded on a computer-readable recording medium. Then, by causing the computer or the like to read and execute the program of this recording medium, the function can be provided. Here, a computer-readable recording medium refers to a recording medium that accumulates information such as data and programs by an electrical, magnetic, optical, mechanical, or chemical action and can be read by a computer or the like. Examples of such removable recording media from a computer or the like include flexible disks, magneto-optical disks, Compact Disc Read Only Memory (CD-ROM), Compact Disc-Recordable (CD-R), Compact Disc-ReWriterable (CD-RW), Digital Versatile Disc (DVD), Blu-ray Disc (BD), Digital Audio Tape (DAT), 8mm tapes, memory cards such as flash memories, and the like. In addition, hard disks, ROMs, and the like are examples of recording media fixed to a computer or the like.

[0107]

Explanation of reference numerals

[0108] 1 ··· Work vehicle 2 ··· Server 3 ··· Tablet terminal 4 ··· Building 11 ··· Elevated work platform 12 ··· Work vehicle sensor device 13 ··· Reference sensor device 21 ··· Calculation unit 22 ··· Position acquisition unit 23 ·· Operating status acquisition unit 24 ·· Usage reception unit 25 ·· Output unit 26 ·· Management database N1 ·· First wireless link N2 ·· Second wireless link 100 ·· Work vehicle management system 201 ·· CPU 202 ·· Main memory unit 203 ·· Auxiliary memory unit 204 ·· First communication unit 205 ·· Second communication unit 241 ·· Usage reception screen 251 ·· Usage status confirmation screen 252 ·· Operating status confirmation screen 253 ·· Operating status icon 261 ·· Floor number / air pressure management table 262 ·· Work vehicle management table 263 ·· Usage status management table 301 ·· Display 302 ·· Touch panel 303 ·· Camera 1201 ·· Microcontroller 1202 ·· Air pressure sensor 1203 ·· Acceleration sensor 1204 ·· Battery 1205 ·· Switch 2411 ·· Usage vehicle name input field 2412 ·· Usage company name input field 2413 ·· User name input field 2414 ·· Comment input field 2415 ·· Registration button 2511 ·· Building image 2512 ·· Floor image 2513 ·· Usage status table 2531 ·· Background area 2532 ·· Operating status 2533 ·· Operating status 2534 ·· Operating status 2535 ·· Operating status 2536 ·· Comment mark 2537 ·· Attention mark

Claims

1. A work vehicle management system for managing work vehicles used in work within a building having a plurality of floors, comprising: a position acquisition unit that acquires the floor on which the work vehicle is located; an operation status acquisition unit that acquires the operation status of the work vehicle; a usage reception unit that receives a usage registration associating a vehicle name indicating the work vehicle with a user name indicating a user who uses the work vehicle; an output unit that outputs a floor image indicating a plurality of floors of the building, and outputs, grouped by the user name, a usage status in which the operation status, the vehicle name, and the user name of the work vehicle are associated with the floor on which the work vehicle is located in the output floor image; A work vehicle management system.

2. The position acquisition unit acquires the floor on which the work vehicle is located based on a detection value of a pressure sensor provided on the work vehicle, and the operation status acquisition unit acquires the operation status of the work vehicle based on a detection value of an acceleration sensor provided on the work vehicle. The work vehicle management system according to Claim 1.

3. The work vehicle is an aerial work vehicle having an elevating work platform, and the acceleration sensor is provided on the aerial work platform. The work vehicle management system according to Claim 2.

4. A reference sensor for detecting the air pressure of the first floor is provided on the first floor of the building, and the position acquisition unit calculates the air pressure corresponding to each floor of the building based on the air pressure detected by the reference sensor, and acquires the floor on which the work vehicle is located based on the detection value from the pressure sensor provided on the work vehicle and the calculated air pressure. The work vehicle management system according to Claim 2 or 3.

5. The reference sensor operates with power supplied from an outlet installed in the building, each of the acceleration sensor and the pressure sensor operates with power supplied from a battery, the reference sensor transmits the detected air pressure at a first interval, and each of the acceleration sensor and the pressure sensor transmits the detection value at a second interval longer than the first interval. The work vehicle management system according to Claim 4.

6. The position acquisition unit acquires the position where the work vehicle is located based on the detection value of the pressure sensor provided on the work vehicle and the detection value of the GPS sensor. The work vehicle management system according to any one of Claims 2 to 5.

7. A work vehicle management method for managing work vehicles used in work within a building having a plurality of floors, comprising: a position acquisition process for acquiring the floor where the work vehicle is located; an operation status acquisition process for acquiring the operation status of the work vehicle; a usage reception process for receiving a usage registration for associating a vehicle name indicating the work vehicle with a user name indicating the user who uses the work vehicle; an output process in which a computer outputs a floor image showing a plurality of floors of the building, and groups and outputs, by user name, the usage status in which the operation status, the vehicle name, and the user name of the work vehicle are associated with the floor where the work vehicle is located in the output floor image; A work vehicle management method.

8. A work vehicle management program for managing work vehicles used in work within a building having a plurality of floors, comprising: a position acquisition process for acquiring the floor where the work vehicle is located; an operation status acquisition process for acquiring the operation status of the work vehicle; a usage reception process for receiving a usage registration for associating a vehicle name indicating the work vehicle with a user name indicating the user who uses the work vehicle; an output process for causing a computer to output a floor image showing a plurality of floors of the building, and group and output, by user name, the usage status in which the operation status, the vehicle name, and the user name of the work vehicle are associated with the floor where the work vehicle is located in the output floor image; A work vehicle management program.

9. A sensor device used in a work vehicle for work within a building having a plurality of floors, comprising: an acceleration sensor for detecting acceleration; a barometric pressure sensor for detecting barometric pressure; a control unit for transmitting the detection value detected by at least the barometric pressure sensor at predetermined intervals, wherein the control unit: when the detection value detected by the acceleration sensor is equal to or greater than a threshold value, transmits the detection value detected by the barometric pressure sensor and the detection value detected by the acceleration sensor; when the detection value detected by the acceleration sensor is less than the threshold value, transmits the detection value detected by the barometric pressure sensor. A sensor device.

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