Management device, management system, management method, and management program

Abstract

To provide a new technology for more appropriately managing tools and toolboxes used at a construction site. [Solution] A management device attached to a tool or tool box, the management device includes a receiving unit, a measuring unit, and an alarm unit; the receiving unit receives worker terminal radio waves transmitted from a worker terminal held by a worker and construction site device radio waves transmitted from a construction site device installed at a construction site, The measurement unit measures the radio wave intensity of the worker terminal radio wave and the construction site device radio wave, The alarm unit performs alarm control based on the result of the measurement.

Description

[Technical Field]

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

[0002] Conventionally, there exists a technique for measuring the position of a worker at a construction site.

[0003] For example, Patent Document 1 discloses a technique for measuring the position of a worker at a construction site by using a plurality of radio waves received by a receiver carried by the worker. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2025-040800 Summary of the Invention [Problem to be solved by the invention]

[0005] Incidentally, there is a demand not only for managing the positions of workers at a construction site, but also for managing the tools used at the construction site and the toolboxes containing those tools.

[0006] However, the technology of Patent Document 1 does not anticipate the management of tools used at construction sites or their toolboxes to prevent theft, and therefore is unable to properly manage the tools and toolboxes used by workers at construction sites.

[0007] The present invention has been made in consideration of the circumstances described above, and aims to solve the problem of providing a new technology for more appropriately managing tools and toolboxes used at construction sites. [Means for solving the problem]

[0008] [1] A management device attached to a tool or tool box, the management device includes a receiving unit, a measuring unit, and an alarm unit; the receiving unit receives worker terminal radio waves transmitted from a worker terminal held by a worker and construction site device radio waves transmitted from a construction site device installed at a construction site, The measurement unit measures the radio wave intensity of the worker terminal radio wave and the construction site device radio wave, The alarm unit performs alarm control based on the result of the measurement. Management device.

[0009] [7] A management method performed by a management device attached to a tool or a tool box, the management device includes a receiving unit, a measuring unit, and an alarm unit; a step in which the receiving unit receives a worker terminal radio wave transmitted from a worker terminal held by a worker and a construction site device radio wave transmitted from a construction site device installed at a construction site; The measuring unit measures the radio wave intensity of the worker terminal radio wave and the construction site device radio wave; The alarm unit controls an alarm based on the result of the measurement. Management method.

[0010] [8] A management program attached to a tool or toolbox, The computer functions as a receiving unit, a measuring unit, and an alarm unit; the receiving unit receives worker terminal radio waves transmitted from a worker terminal held by a worker and construction site device radio waves transmitted from a construction site device installed at a construction site, The measurement unit measures the radio wave intensity of the worker terminal radio wave and the construction site device radio wave, The alarm unit performs alarm control based on the result of the measurement. Management program.

[0011] With this configuration, it becomes possible to measure the radio wave strength received by the management device attached to the tool or toolbox from the worker terminal and construction site device, and the measured radio wave strength can be used to properly manage the tools and toolboxes used at the construction site.

[0012] If alarm control is performed based solely on the results of measuring the radio wave intensity received from the construction site device, it will be difficult for the owner of the tool or toolbox to take the tool or toolbox away from the construction site.

[0013] On the other hand, if alarm control is performed using the results of radio wave intensity measurements received from the worker terminal, the owner of a tool or toolbox that has a worker terminal can, for example, carry the worker terminal along with the management device, and the alarm on the management device will not sound, making it easier to take the tool or toolbox to a location away from the construction site.

[0014] [2] The management device stores a worker terminal ID related to the worker terminal; the measurement unit measures the radio wave intensity of the worker terminal radio wave corresponding to the worker terminal ID and the construction site device radio wave, The alarm unit performs the alarm control when the radio wave intensity of the worker terminal radio wave of the worker terminal ID and the construction site device radio wave is equal to or less than a predetermined threshold based on the measurement result. The management device according to [1].

[0015] This configuration makes it possible to control alarms in response to receiving radio waves transmitted from a pre-registered worker terminal, allowing for more appropriate management of tools and toolboxes used at construction sites.

[0016] [3] The management device includes a registration unit, the registration unit accepts registration of one or more worker terminal IDs and stores the one or more worker terminal IDs accepted in the registration. The management device according to [1] or [2].

[0017] This configuration allows the management device to freely register worker terminals from which radio waves should be received, allowing for more appropriate management of tools and toolboxes used at construction sites.

[0018] [4] A management system comprising a plurality of management devices according to [3], one or more worker terminals, and one or more construction site devices, the management device includes a transmission unit; The transmitter transmits a management device radio wave, the receiving unit receives radio waves from other management devices other than the management device itself; The measurement unit measures radio waves from the other management device, The alarm unit sounds an alarm when the radio wave intensity of the worker terminal radio wave of the worker terminal ID, the construction site device radio wave, and the other management device radio wave is equal to or less than a predetermined threshold based on the result of the measurement, The transmitting unit transmits the location information of the management device itself when the radio wave intensity of the worker terminal radio wave of the worker terminal ID, the construction site device radio wave, and the other management device radio wave is equal to or less than a predetermined threshold based on the result of the measurement. Management system.

[0019] With this configuration, it is possible to sound an alarm using radio waves transmitted from other management devices, allowing for more appropriate management of tools and toolboxes used at construction sites.

[0020] [5] The alarm unit sounds an alarm corresponding to the value of the radio wave intensity based on the result of the measurement. The management device according to any one of [1] to [3].

[0021] This configuration makes it possible to sound an appropriate alarm depending on the situation, allowing for more appropriate management of tools and toolboxes used at construction sites.

[0022] [6] The management device includes a storage unit and a transmission unit; the storage unit stores a worker terminal ID related to the worker terminal; the measurement unit measures the radio wave intensity of the worker terminal radio wave corresponding to the worker terminal ID and the construction site device radio wave, The transmitting unit transmits the location information of the management device itself when the radio wave intensity of the worker terminal radio wave of the worker terminal ID and the construction site device radio wave is equal to or less than a predetermined threshold based on the result of the measurement. The management device according to any one of [1] to [3] and [5].

[0023] This configuration allows the management device to transmit its own location information in certain situations, allowing for more appropriate management of tools and toolboxes used at construction sites.

[0024] [9] A management method for managing tools or toolboxes, attaching a management device to the tool or tool box; and taking the tool or tool box including the management device to a location where the tool or tool box including the management device cannot receive construction site device radio waves transmitted from the construction site device. When the management device receives a construction site device radio wave transmitted from a construction site device or a worker terminal radio wave of a predetermined worker terminal ID, the management device does not sound an alarm, In the taking-out step, the management device sounds an alarm if it cannot receive a worker terminal radio wave of a predetermined worker terminal ID. Management method.

[0025] This configuration makes it possible to not sound an alarm if a specific radio wave is received, and to sound an alarm if the specific radio wave is not received, allowing for more appropriate management of tools and toolboxes used on construction sites. [Effects of the Invention]

[0026] According to the present invention, a new technique can be provided for more appropriately managing tools and toolboxes used at construction sites. [Brief explanation of the drawings]

[0027] [Figure 1] FIG. 2 is a schematic diagram illustrating an example of a construction site and workers according to the present embodiment. [Figure 2] FIG. 2 is a schematic diagram illustrating an example of a construction site and workers according to the present embodiment. [Figure 3] FIG. 2 is a schematic diagram illustrating an example of a construction site and workers according to the present embodiment. [Figure 4] FIG. 2 is a schematic diagram illustrating an example of a construction site and workers according to the present embodiment. [Figure 5] FIG. 1 is a block diagram showing the configuration of a management system according to an embodiment of the present invention. [Figure 6] FIG. 2 is a diagram showing the hardware configuration according to the present embodiment. [Figure 7] FIG. 2 is a block diagram showing functional components in the present embodiment. [Figure 8] 3 shows an example of a data configuration stored in a storage unit in this embodiment. [Figure 9] 3 shows an example of a data configuration stored in a storage unit in this embodiment. [Figure 10] 4 is a flowchart of alarm control in the present embodiment. [Figure 11] 10 is an example of a management screen for managing a management device according to the present embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0028] The management system of the present invention will be described below with reference to the drawings. The drawings show preferred embodiments. However, the present invention may be embodied in many different forms and is not limited to the embodiments set forth herein.

[0029] For example, although the configuration, operation, etc. of the management system are described in this embodiment, similar effects can be achieved by the executed method (steps), device, computer program, etc. The program in this embodiment may be provided as a non-transitory computer-readable recording medium, or may be provided so as to be downloadable from an external server, or the program may be started on an external computer to implement its functions on a client terminal (so-called cloud computing).

[0030] In addition, in this embodiment, the term "unit" may include, for example, a combination of hardware resources implemented by a circuit in the broad sense and software information processing that can be specifically realized by these hardware resources. In this embodiment, "information" is represented by, for example, the physical value of a signal value representing voltage or current, the high or low value of a signal value as a binary bit set consisting of 0 or 1, or quantum superposition (so-called quantum bits), and communication and calculation can be performed on a circuit in the broad sense.

[0031] A circuit in the broad sense is a circuit realized by appropriately combining a circuit, circuitry, processor, memory, etc. That is, it includes a CPU (Central Processing Unit), a GPU (Graphics Processing Unit), an LSI (Large Scale Integration), an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array), etc.

[0032] <Schematic image of the construction site and workers> 1 to 4 are examples of schematic image diagrams of a construction site and workers in this embodiment. In Fig. 1 to 4, four construction site devices 3 (3a to 3d) are installed at a construction site C.

[0033] Each construction site device 3 transmits construction site device radio waves. The management device 1 attached to a tool or tool box controls an alarm according to the radio wave intensity of the construction site device radio waves received by a receiving unit 12 described below. In Figures 1 to 4, for example, the management device 1 can receive construction site device radio waves transmitted by the construction site device 3 if it is within range R (dashed line).

[0034] 1 to 4, by installing a plurality of construction site devices 3 at the construction site C, the management device 1 can receive construction site device radio waves at the construction site C. On the other hand, since the management device 1 cannot receive construction site device radio waves at a location away from the construction site C, alarm control can be performed according to the radio wave intensity of the construction site device radio waves received by the management device 1.

[0035] For example, in order to prevent tools or toolboxes from being taken out of the construction site C, if the management device 1 attached to the tool or toolbox cannot receive the construction site device radio waves, the management device 1 may sound an alarm.

[0036] As shown in FIG. 1, when the management device 1 attached to the tool T is within a range R in which it can receive construction site device radio waves (for example, when the radio wave strength of the construction site device radio waves measured by a measurement unit 13 described later is equal to or greater than a predetermined threshold), the management device 1 does not sound an alarm. On the other hand, as shown in FIG. 2, when the management device 1 attached to the tool T is outside a range R in which it can receive construction site device radio waves (for example, when the radio wave strength of the construction site device radio waves measured by a measurement unit 13 described later is equal to or less than a predetermined threshold), the management device 1 sounds an alarm. This prevents thieves from trying to take tools and toolboxes out of the construction site.

[0037] On the other hand, if alarm control is performed using only radio waves from the construction site device, the alarm will sound even when the owner of the tools or toolbox takes the tools or toolbox out of the construction site, which is inconvenient.

[0038] Furthermore, even within a construction site, there may be areas where the radio waves from the construction site device are difficult to reach, and if alarm control is performed using only the radio waves from the construction site device, the alarm will sound even when workers are working in such areas, which is inconvenient.

[0039] Therefore, rather than performing alarm control based solely on the radio wave strength of the construction site device radio waves, the management device 1 may perform alarm control by receiving not only the construction site device radio waves but also the worker terminal radio waves transmitted from the worker terminal 2 held by the worker.

[0040] As shown in Figure 3, even if the management device 1 attached to the tool T is outside the range R in which it can receive construction site device radio waves (for example, when the radio wave strength of the construction site device radio waves measured by the measurement unit 13 described below is below a predetermined threshold), the management device 1 will not sound an alarm if it is within the range r (dotted line) in which it can receive worker terminal radio waves (for example, when the radio wave strength of the worker terminal radio waves measured by the measurement unit 13 described below is above a predetermined threshold).

[0041] As shown in Figure 4, if the management device 1 attached to the tool T is outside the range r in which it can receive the worker terminal radio waves (for example, if the radio wave strength of the worker terminal radio waves measured by the measurement unit 13 described below is below a predetermined threshold), and if it is also outside the range R in which it can receive the construction site equipment radio waves (for example, if the radio wave strength of the construction site equipment radio waves measured by the measurement unit 13 described below is below a predetermined threshold), the management device 1 will sound an alarm.

[0042] By having the management device 1 control the alarm using the radio wave strength of the worker terminal radio waves and the construction site device radio waves, as shown in Figure 3, even if the management device 1 attached to the tool T is outside the range where it can receive the construction site device radio waves, no alarm will sound, reducing inconvenience to the owner.

[0043] <System Overview> Fig. 5 is a block diagram showing the configuration of a management system in this embodiment. As shown in Fig. 5, the management system 0 includes a management device 1, a worker terminal 2, and a construction site device 3. The management device 1 is configured to be able to communicate with the worker terminal 2, the construction site device 3, and an administrator device 4 via a network NW.

[0044] The management device 1 serves as a receiver that receives radio waves from the worker terminal 2 and the construction site device 3. The management device 1 may also serve as a transmitter that transmits radio waves to other management devices, etc., and transmits its own location information.

[0045] The management device 1 receives worker terminal radio waves transmitted from the worker terminal 2, construction site device radio waves transmitted from the construction site device 3, and management device radio waves transmitted from other management devices 1. The management device 1 converts, for example, unique identification information for each management device 1 into a bit string, modulates it into radio waves, and transmits it as management device radio waves.

[0046] The management device 1 performs wireless communication using Bluetooth (registered trademark), ZigBee (registered trademark), Wi-Fi (registered trademark), or the like. The management device 1 is a wireless tag such as a BLE (Bluetooth Low Energy) tag, and is attached to a tool or a tool box. The management device 1 may be attached to a tool or a tool box either later or as a built-in device, and any method of attachment is acceptable. One or more management devices 1 may be attached to one tool or tool box.

[0047] The management device 1 may include a vibration sensor. For example, the management device 1 may be turned on, enter sleep mode, or turn off based on vibrations detected by the vibration sensor. For example, if the vibration sensor does not detect any vibrations for a certain period of time, the management device 1 enters sleep mode to prevent the battery from running down.

[0048] The worker terminal 2 is a terminal held by the worker, and transmits radio waves that can be received by the management device 1. For example, the worker terminal 2 converts unique identification information for each worker terminal 2 into a bit string, modulates it into radio waves, and transmits them as worker terminal radio waves.

[0049] A terminal device such as a smartphone or a tablet terminal can be used as the worker terminal 2. The number of worker terminals 2 may be one or more.

[0050] The construction site device 3 is a device installed at a construction site, and transmits radio waves that can be received by the management device 1. For example, the construction site device 3 converts unique identification information for each construction site device 3 into a bit string, modulates it into radio waves, and transmits the radio waves as the construction site device radio waves.

[0051] One or more construction site devices 3 are installed at a construction site. It is preferable to install multiple construction site devices 3 at a construction site so that there are no areas at the construction site where radio waves emitted from the construction site devices 3 cannot be received. The radio wave strength of the construction site device radio waves emitted by the multiple construction site devices 3 installed at a construction site may all be the same or may be different from each other. For example, by varying the radio wave strength of each construction site device radio wave at a construction site, the range of radio wave strength corresponding to each construction site can be adjusted appropriately for each construction site.

[0052] The construction site device 3 may be a terminal device such as a smartphone or tablet terminal.

[0053] The administrator device 4 is a device for managing the management device 1. The administrator device 4 is used to manage the status of the management device 1 (for example, the status of the remaining battery power of the management device 1, etc.).

[0054] A general-purpose server computer, a personal computer, or the like can be used as the administrator device 4. It is also possible to configure the administrator device 4 using multiple computers. Alternatively, the administrator device 4 may be a smartphone, a tablet terminal, or the like.

[0055] In this embodiment, the network NW is an IP (Internet Protocol) network, but there is no limitation on the type of communication protocol, and there is also no limitation on the type and scale of the network.

[0056] <Hardware configuration> Fig. 6 is a hardware configuration diagram. As shown in Fig. 6(a), the information processing device 10 (administrator device 4) has a control unit 101, a storage unit 102, and a communication unit 103, which are used to perform the functions of each unit and each process.

[0057] The control unit 101 includes one or more processors such as a CPU (Central Processing Unit), and controls the overall operation and processing of the information processing device 10 by executing the management program of the present invention, the OS (Operating System), browser software, and other applications.

[0058] The storage unit 102 is a hard disk drive (HDD), a solid state drive (SSD), a read only memory (ROM), a random access memory (RAM), or the like, and stores the management program according to the present invention and data used when the control unit 101 executes processing based on the program. The control unit 101 executes processing based on the management program stored in the storage unit 102, thereby realizing the functional configuration described below.

[0059] The communication unit 103 controls communication with the network NW, and performs inputs required to operate the information processing device 10 and outputs related to the operation results.

[0060] As shown in FIG. 6(b), the terminal device 9 (operator terminal 2) has a control unit 91, a storage unit 92, a communication unit 93, an input unit 94, and an output unit 95, and is used to perform the functions of each unit and each process.

[0061] The control unit 91 of the terminal device 9 includes one or more processors such as a CPU, and controls the overall operation and processing of the terminal device 9. The storage unit 92 of the terminal device 9 is an HDD, SSD, ROM, RAM, or the like, and stores the above-mentioned applications and data used when the control unit 91 executes processing based on a program.

[0062] A communication unit 93 of the terminal device 9 controls communication with the network NW. An input unit 94 of the terminal device 9 is a mouse, keyboard, etc., and inputs operation requests from the user / provider to the control unit 91. An output unit 95 of the terminal device 9 is a display, etc., and displays the results of processing by the control unit 91, etc.

[0063] <Functional components> 7, the management device 1 includes a registration unit 11, a receiving unit 12, a measurement unit 13, an alarm unit 14, a transmission unit 15, and a storage unit 16. The administrator device 4 includes a receiving unit 41, a display processing unit 42, a setting unit 43, a collating unit 44, a detection unit 45, and a storage unit 46.

[0064] The arrangement of these functional components is one example, and it is also possible to implement these functional components on multiple computers to configure the management system 0. For example, part of the functional components of the administrator device 4 may be arranged in one or more devices configured to be able to communicate with the management device 1, worker terminal 2, construction site device 3, and administrator device 4.

[0065] <Data structure> 8 and 9 show examples of data configurations stored in the storage unit in this embodiment. The storage unit 16 of the management device 1 stores alarm control information, worker terminal information (worker terminal ID) that has been registered for takeout, which will be described later, and the like. The storage unit 46 of the administrator device 4 stores worker information, device information, and the like.

[0066] The arrangement of each data is an example, and some or all of the data stored in the memory unit of the administrator device 4 may be stored in one or more devices configured to communicate with the management device 1, worker terminal 2, construction site device 3, and administrator device 4.

[0067] The worker terminal information is unique identification information that each worker terminal has, and may be a worker terminal ID as shown in Fig. 8(a). The storage unit 16 of the management device 1 may store one or more worker terminal IDs as worker terminal information by carrying out registration.

[0068] The memory unit 16 of the management device 1 attached to a tool or toolbox stores the worker terminal ID, making it possible to link a worker terminal 2 to each management device 1, and the alarm unit 14 of the management device 1 can control the alarm according to the radio wave intensity from the worker terminal ID stored in the memory unit 16.

[0069] As shown in Figure 8(a), the worker terminal ID is composed of the type of device (for example, information for identifying whether it is a management device 1, a worker terminal 2, a construction site device 3, etc.), a construction (work) site group number (for example, information for identifying the site or team), a serial number of the device within the construction site, an operation flag, an identification code for identifying the device, a reserved area, etc.

[0070] For example, in the worker terminal ID "02-01-01-10-BA-00" in Figure 8(a), the first "02" represents the type of equipment, the second "01" represents the construction (work) site group number, the third "01" represents the serial number of the equipment within the construction site, the fourth "10" represents the operation flag, the fifth "BA" represents an identification code for identifying the equipment, and the sixth "00" represents a reserved area.

[0071] The alarm control information is information for controlling the alarm, and is information relating to alarm control for a range of radio wave strength (RSSI (Received Signal Strength Indicator)), as shown in Fig. 8(b). For example, the alarm control information includes an alarm interval corresponding to the range of radio wave strength (e.g., control to sound an alarm every 30 seconds, control to sound an alarm until the battery of the management device 1 runs out, etc.), a type of alarm sound (e.g., a loud alarm sound, etc.), etc.

[0072] The memory unit 16 of the management device 1 attached to a tool or toolbox stores alarm control information, so that the alarm unit 14 of the management device 1 can perform alarm control based on the radio wave intensity received by the receiving unit 12.

[0073] The worker information is information about the worker, and is information about the worker, as shown in Fig. 8(c). For example, the worker information includes the worker's name, address, telephone number, information about the worker terminal owned by the worker (worker terminal ID), etc.

[0074] The device information is information for managing devices at a construction site (e.g., management device 1, worker terminal 2, construction site device 3, etc.), and is managed by device ID as shown in Fig. 9(d). The device information differs depending on the type of device, and for example, in the case of management device 1, it includes the worker terminal ID associated with it, RSSI received by management device 1, location information (e.g., last location information, etc.), alarm status, communication time (e.g., last communication time, etc.), remaining battery power, etc.

[0075] <Processing flowchart> FIG. 10 is a flowchart of alarm control in this embodiment.

[0076] <Registering various information> In step S1001, the worker registers the taking-out of the tool T. The registration unit 11 registers one or more worker terminal IDs. The registration unit 11 accepts the registration of one or more worker terminal IDs and stores the one or more worker terminal IDs accepted in the registration. The registration unit 11 stores the worker terminal IDs in the memory unit 16.

[0077] In this way, the management device 1 stores the worker terminal ID related to the worker terminal, and the measurement unit 13, which will be described later, can identify the worker terminal radio waves of the worker terminal ID stored in the storage unit 16. The worker terminal ID may be registered via the administrator device 4. By registering via the administrator device 4, an administrator or the like can manage the relationship between the worker and the tools or toolboxes to which the management device 1 is attached.

[0078] Furthermore, the same worker terminal ID may be stored in the storage units 16 of multiple management devices 1 within the same construction site. In this way, multiple management devices 1 can be linked to a worker.

[0079] The registration unit 11 may automatically delete the worker terminal ID stored in the storage unit 16 according to a predetermined condition, such as after a certain period of time has elapsed. In this way, the tool or toolbox to which the management device 1 is attached can be released from the take-out state after it is no longer necessary to take the tool or toolbox outside the work site.

[0080] <Radio wave reception> In step S1002, the receiving unit 12 receives worker terminal radio waves transmitted from the worker terminal 2 held by the worker and construction site device radio waves transmitted from the construction site device 3 installed at the construction site.

[0081] The worker terminal 2 held by the worker transmits radio waves that can be received by the management device 1. The worker terminal 2 may transmit radio waves constantly or periodically (at predetermined intervals (e.g., every few seconds)).

[0082] The construction site device 3 installed at the construction site transmits radio waves that can be received by the management device 1. The construction site device 3 may transmit radio waves constantly, or may transmit periodically (at predetermined intervals (for example, every few seconds)). The construction site device 3 may be installed within or near the construction site, and the number of devices to be installed is not limited.

[0083] <Radio wave measurement> In step S1003, the measurement unit 13 measures the radio wave strength of the worker terminal radio waves and the construction site device radio waves. The measurement unit 13 measures the radio wave strength of the worker terminal radio waves and the construction site device radio waves corresponding to the worker terminal ID.

[0084] The measurement unit 13 measures whether or not radio waves from the worker terminal and the construction site device are being received. The measurement unit 13 measures the RSSI of the received radio waves from the worker terminal and the construction site device.

[0085] <Alarm control> In step S1004, the alarm unit 14 performs alarm control based on the measurement result of the measurement unit 13. Specifically, the alarm unit 14 performs alarm control based on the measurement result when the radio wave intensity of the worker terminal radio waves of the worker terminal ID and the construction site device radio waves is equal to or less than a predetermined threshold.

[0086] For example, the alarm unit 14 controls the alarm based on alarm control information (such as information linking alarm intervals and alarm sounds to radio wave strength ranges) stored in the memory unit 16. The alarm unit 14 controls the alarm intervals and type of alarm sound based on the measured radio wave strength and radio wave strength range. Based on the measurement results of the measurement unit 13, the alarm unit 14 sounds an alarm corresponding to the values ​​of the radio waves from the worker terminal and the radio waves from the construction site device.

[0087] Alarm unit 14 does not sound an alarm when receiver 12 is receiving worker terminal radio waves (measurer 13 can measure the radio wave intensity of the worker terminal radio waves). Specifically, alarm unit 14 does not sound an alarm when receiver 12 is receiving worker terminal radio waves corresponding to a worker terminal ID stored in memory 16 (measurer 13 can measure the radio wave intensity of the worker terminal radio waves corresponding to a worker terminal ID stored in memory 16).

[0088] When the receiving unit 12 is not receiving the worker terminal radio waves (when the measuring unit 13 is not able to measure the radio wave strength of the worker terminal radio waves), the alarm unit 14 performs alarm control based on the radio wave strength of the construction site device radio waves. Specifically, when the receiving unit 12 is not receiving the worker terminal radio waves (when the measuring unit 13 is not able to measure the radio wave strength of the worker terminal radio waves), the alarm unit 14 changes the interval at which the alarm sounds or the type of alarm sound to be sounded based on the measured radio wave strength of the construction site device radio waves.

[0089] For example, if the receiving unit 12 does not receive the worker terminal radio waves and the received construction site device radio waves are equal to or greater than a predetermined value (e.g., -60 dBm), the alarm unit 14 does not sound an alarm. If the receiving unit 12 does not receive the worker terminal radio waves and the received construction site device radio waves are within a predetermined range (e.g., -80 to -60 dBm), the alarm unit 14 sounds an alarm at predetermined intervals (e.g., every 30 seconds).

[0090] If the receiving unit 12 does not receive the worker terminal radio waves and the received construction site device radio waves are within a predetermined range (for example, -100 to -80 dBm), the alarm unit 14 sounds an alarm at predetermined intervals (for example, every 10 seconds). For example, the weaker the construction site device radio waves received by the receiving unit 12, the shorter the intervals at which the alarm unit 14 sounds the alarm.

[0091] In this way, by changing the alarm interval and type of alarm sound according to the level of radio wave strength of the radio waves received by the management device 1, it is possible to issue a level-appropriate warning to anyone who takes a tool or toolbox to which the management device 1 is attached outside the work site without registering it.

[0092] The alarm unit 14 sounds a continuous alarm (always sounds an alarm) when the receiving unit 12 does not receive the worker terminal radio waves and the received construction site device radio waves are -100 dBm or less. Also, the alarm unit 14 sounds a continuous alarm (always sounds an alarm) when the receiving unit 12 does not receive the worker terminal radio waves and the construction site device radio waves (the measuring unit 13 cannot measure the radio wave strength of the worker terminal radio waves and the construction site device radio waves).

[0093] In such a case, since it is highly likely that the tool or toolbox to which the management device 1 is attached has been moved far away from the construction site, the alarm unit 14 sounds a continuous alarm, assuming that the tool or toolbox has been stolen. In this way, the tool or toolbox to which the management device 1 is attached can be properly managed.

[0094] Additionally, the alarm unit 14 may not sound an alarm when the received worker terminal radio waves and construction site device radio waves are equal to or greater than a predetermined value (e.g., -60 dBm). The alarm unit 14 may sound an alarm at predetermined intervals (e.g., every 30 seconds) when the received worker terminal radio waves and construction site device radio waves are within a predetermined range (e.g., -80 to -60 dBm).

[0095] The alarm unit 14 may sound an alarm at predetermined intervals (for example, every 10 seconds) when the received worker terminal radio waves and construction site device radio waves are within a predetermined range (for example, -100 to -80 dBm).The alarm unit 14 may sound a continuous alarm (or may sound an alarm constantly) when the received worker terminal radio waves and construction site device radio waves are below a predetermined value (for example, -100 dBm).

[0096] <Sending location information> The transmitter 15 transmits the location information of the management device itself. The transmitter 15 may transmit the location information regardless of the measurement result of the measurement unit 13. Alternatively, the transmitter 15 may transmit the location information based on the measurement result of the measurement unit 13.

[0097] For example, based on the measurement results of the measurement unit 13, if the radio wave strength of the worker terminal radio waves of the worker terminal ID and the construction site device radio waves is below a predetermined threshold (if there is a high possibility that they have been taken away by a thief, etc.), the transmission unit 15 may transition to a location information transmission mode and transmit the location information of the management device itself.

[0098] When the radio wave strength of the worker terminal radio waves of the worker terminal ID and the construction site equipment radio waves is below a predetermined threshold, a terminal such as a smartphone present on the infrastructure network is responsible for uploading (transmitting) the identification information of the management device 1 (e.g., the management device ID, etc.) to the cloud network.

[0099] Specifically, the management device 1 receives its own identification information sent by a terminal such as a smartphone on the infrastructure network, and the smartphone adds location information and uploads (transmits) that information (identification information, location information, etc.) to the cloud network.

[0100] If a smartphone on the network has downloaded a dedicated app or program, it may receive information transmitted by the management device 1. Also, even if a smartphone on the network has not downloaded a dedicated app or program, it may receive information transmitted by the management device 1.

[0101] Furthermore, when the management device 1 is receiving the worker terminal radio waves, the management device 1 and the worker terminal 2 can communicate with each other, so the worker terminal 2 may transmit the location information transmitted by the management device 1 to the administrator device 4, etc. Furthermore, when the management device 1 is receiving the construction site device radio waves, the management device 1 and the construction site device 3 can communicate with each other, so the construction site device 3 may transmit the location information transmitted by the management device 1 to the administrator device 4, etc.

[0102] The transmitting unit 15 may transmit the location information in conjunction with alarm control by the alarm unit 14. Specifically, the transmitting unit 15 transmits the location information at the timing when the alarm unit 14 sounds the alarm. For example, if the alarm unit 14 sounds the alarm every 30 seconds, the transmitting unit 15 transmits the location information at every 30 seconds.

[0103] The transmitter 15 may transmit the status of alarm control based on the measurement result of the measurement unit 13. For example, when the alarm unit 14 is sounding an alarm, the transmitter 15 transmits information indicating that the alarm is sounding.

[0104] By transmitting information indicating that the worker terminal 2, construction site device 3, smartphone on the infrastructure network, etc. is sounding the alarm transmitted by the management device 1 to the administrator device 4, etc., the administrator, etc. can quickly become aware that the tool or toolbox to which the management device 1 is attached may have been stolen.

[0105] <Intercommunication between management devices> The transmitter 15 may transmit a management device radio wave. Specifically, the transmitter 15 transmits identification information of the management device itself (for example, a management device ID, etc.) as the management device radio wave.

[0106] The receiver 12 receives management device radio waves transmitted from management devices other than the receiver 12. The measurement unit 13 measures management device radio waves transmitted from devices other than the receiver 12.

[0107] The alarm unit 14 may perform alarm control based on the measurement result of the radio wave intensity of the management device radio waves. The alarm unit 14 may sound an alarm when the radio wave intensity of the management device radio waves transmitted from a device other than itself is equal to or lower than a predetermined threshold based on the measurement result of the measurement unit 13.

[0108] It is conceivable that there are multiple tools or toolboxes at a construction site. Therefore, if the receiver 12 receives the management device radio waves from a management device 1 attached to another tool or toolbox, it is considered that the management device 1 is located within or near the construction site.

[0109] The alarm unit 14 may sound an alarm when the radio wave strength of the worker terminal radio waves of the worker terminal ID, the construction site device radio waves, and the management device radio waves transmitted from a device other than itself is below a predetermined threshold based on the measurement result of the measurement unit 13. In this way, it is possible to perform alarm control using multiple radio wave strengths, and to manage tools or toolboxes more appropriately.

[0110] The transmitter 15 may transmit the location information of the management device itself based on the result of the radio wave strength of the management device's radio waves. The transmitter 15 may also transmit the location information of the management device itself based on the result of measurement by the measurement unit 13 when the radio wave strength of the management device's radio waves transmitted from a device other than the transmitter 15 itself is equal to or less than a predetermined threshold.

[0111] Based on the measurement results of the measurement unit 13, the transmission unit 15 may transmit the location information of the management device itself if the radio wave intensity of the worker terminal radio waves of the worker terminal ID, the construction site device radio waves, and the management device radio waves transmitted from sources other than itself is below a predetermined threshold.

[0112] The receiver 12 of the management device 1 that stores the worker terminal ID in the memory 16 does not need to receive management device radio waves transmitted from management devices other than itself. In this way, the management device 1 linked to the worker terminal ID can control alarms using only the worker terminal radio waves and the construction site device radio waves.

[0113] In addition, the memory unit 16 may store a management device ID other than its own, and the alarm unit 14 may perform alarm control based on the results of measuring the radio wave intensity of the management device radio waves received from the management device 1 of the management device ID stored in the memory unit 16.

[0114] <Device status display process> The receiving unit 41 of the administrator device 4 receives information directly or indirectly from the management device 1, the worker terminal 2, and the construction site device 3. The display processing unit 42 displays information about the devices based on the information received from the management device 1, the worker terminal 2, and the construction site device 3. The receiving unit 41 stores the information received from the worker terminal 2 and the construction site device 3 in the memory unit 46.

[0115] Fig. 11 is an example of a management screen for managing the management device in this embodiment. As shown in Fig. 11, the display processing unit 42 displays the information received by the receiving unit 41. In this way, a manager or the like can collectively manage the status of the management device 1, the worker terminal 2, and the construction site device 3.

[0116] The receiving unit 41 receives identification information (management device ID, worker terminal ID, construction site device 3), position information, etc. from the management device 1, worker terminal 2, and construction site device 3.

[0117] For example, in the device ID "01-10-02-00-AA-00" in Figure 11, the first "01" represents the type of device ("01" represents management device 1, "02" represents worker terminal 2, and "03" represents construction site device 3), the second "10" represents the construction (work) site group number, the third "02" represents the serial number of the device within the construction site, the fourth "00" represents the operation flag, the fifth "AA" represents an identification code for identifying the device, and the sixth "00" represents a reserved area.

[0118] The display processing unit 42 displays the device type and group name based on the received device ID. For example, the storage unit 46 stores information related to the device type and the corresponding number, information related to the group name and the corresponding number, etc., so that the display processing unit 42 can display the group name and type based on the device ID as shown in FIG. 11.

[0119] Furthermore, by storing the worker information in the storage unit 46, the display processing unit 42 can display the worker ID based on the received device ID and worker information, as shown in Fig. 11. Alternatively, the receiving unit 41 may receive the battery status and alarm control status of the management device 1, and the display processing unit 42 may display the same as shown in Fig. 11.

[0120] The receiving unit 41 may receive the received RSSI received by the management device 1 from the management device 1, and the display processing unit 42 may perform display processing as shown in Fig. 11. The management device 1 may periodically transmit its own location information to the administrator device 4. The administrator device 4 stores the received location information in the storage unit 46 together with the time of reception.

[0121] <Settings by administrator device> The management device 1 may store the worker terminal ID corresponding to the worker terminal 2 via the administrator device 4. Specifically, the setting unit 43 stores the worker terminal ID corresponding to the worker terminal in the management device 1.

[0122] Furthermore, a group of construction sites where the management device 1 is used may be registered via the administrator device 4. Specifically, the setting unit 43 registers a group of construction sites where the management device 1 is used.

[0123] The management device 1 may store alarm control information via the administrator device 4. Specifically, the setting unit 43 stores the alarm interval, alarm sound, etc. for a specific radio wave intensity (RSSI) range in the management device 1. The setting unit 43 may also store all the RSSI ranges of the management devices 1 attached to tools or toolboxes used by a group at the same construction site.

[0124] <Alarm control by administrator device> The administrator device 4 may compare the location information received from the management device 1 and perform alarm control based on the result of the comparison. Specifically, the comparison unit 44 may compare the location information of multiple management devices 1, and if multiple management devices 1 are moving along the same (similar) movement route, control the management device 1 to sound an alarm (for example, send an instruction to have the management device 1 sound an alarm, etc.).

[0125] For example, the comparison unit 44 may compare the location information of multiple management devices 1, and if the location information of specific multiple management devices 1 is identical (similar) multiple times, control the management device 1 to sound an alarm (for example, send an instruction to the management device 1 to sound an alarm).

[0126] Additionally, if the latest location information of multiple management devices 1 is identical (similar), the collation unit 44 may collate the past location information of those management devices 1. The collation unit 44 may also collate the past location information of those management devices 1, and if the location information is also identical (similar), control the management device 1 to sound an alarm (for example, send an instruction to have the management device 1 sound an alarm).

[0127] Furthermore, when the detection unit 45 detects that the reception of information from a plurality of management devices 1 has stopped simultaneously (at close timing), the detection unit 45 may control the management devices 1 to sound an alarm (for example, by transmitting an instruction to the management devices 1 to sound an alarm). Specifically, when the detection unit 45 does not receive information from the management devices 1 for a certain period of time, it determines that the reception of information has stopped.

[0128] If the administrator device 4 detects that the reception of information from multiple management devices 1 is stopped simultaneously (at close timing) and that the location information of those management devices 1 is moving simultaneously in the vicinity before the reception of information is stopped, the administrator device 4 may control the management device 1 to sound an alarm (for example, by sending an instruction to the management device 1 to sound an alarm).

[0129] The administrator device 4 may itself sound an alarm, instead of controlling the management device 1 to sound an alarm (for example, by sending an instruction to the management device 1 to sound an alarm).

[0130] As described above, the configuration of the present invention can provide a new technique for more appropriately managing tools and toolboxes used at a construction site. [Explanation of symbols]

[0131] 0 Management System 1 Management device 11 Registration Department 12 Receiving section 13 Measuring part 14 Alarm section 15 Transmitter 16 Memory section 2. Worker terminal 3 Construction site equipment 4 Administrator device 41 Receiving unit 42 Display processing section 43 Setting section 44 Matching unit 45 Detection unit 46 Memory section NW Network

Claims

1. A management system including a plurality of management devices attached to tools or tool boxes, one or more worker terminals, and one or more construction site devices, the management device includes a receiving unit, a measuring unit, an alarm unit, a registration unit, and a transmitting unit; the management device stores a worker terminal ID related to the worker terminal; the registration unit accepts registration of one or more worker terminal IDs and stores the one or more worker terminal IDs accepted in the registration; The transmitter transmits a management device radio wave, The receiving unit receives worker terminal radio waves transmitted from a worker terminal held by a worker, construction site device radio waves transmitted from a construction site device installed at a construction site, and other management device radio waves transmitted from other management devices other than itself, The measurement unit measures the radio wave intensity of the worker terminal radio wave corresponding to the worker terminal ID, the construction site device radio wave, and the other management device radio wave, The alarm unit sounds an alarm when the radio wave intensity of the worker terminal radio wave of the worker terminal ID, the construction site device radio wave, and the other management device radio wave is equal to or less than a predetermined threshold based on the measurement result, The transmitting unit transmits the location information of the management device itself when the radio wave intensity of the worker terminal radio wave of the worker terminal ID, the construction site device radio wave, and the other management device radio wave is equal to or less than a predetermined threshold based on the result of the measurement. Management system.

2. The alarm unit sounds an alarm corresponding to the value of the radio wave intensity based on the result of the measurement. The management system according to claim 1 .

3. A management method performed by a management device attached to a tool or a tool box, the management device includes a receiving unit, a measuring unit, an alarm unit, a registration unit, and a transmitting unit; the management device storing a worker terminal ID relating to the worker terminal; the registration unit accepting registration of one or more worker terminal IDs and storing the one or more worker terminal IDs accepted in the registration; a step of transmitting a management device radio wave by the transmitting unit; The receiving unit receives worker terminal radio waves transmitted from a worker terminal held by a worker, construction site device radio waves transmitted from a construction site device installed at a construction site, and other management device radio waves transmitted from other management devices other than itself; The measurement unit measures the radio wave intensity of the radio wave from the worker terminal corresponding to the worker terminal ID, the radio wave from the construction site device, and the radio wave from the other management device; The alarm unit sounds an alarm when the radio wave intensity of the worker terminal radio wave of the worker terminal ID, the construction site device radio wave, and the other management device radio wave is equal to or less than a predetermined threshold based on the result of the measurement; The transmitting unit transmits location information of the management device itself when the radio wave intensity of the worker terminal radio wave of the worker terminal ID, the construction site device radio wave, and the other management device radio wave is equal to or less than a predetermined threshold based on the result of the measurement. Management method.

4. A management program attached to a tool or tool box, causing the computer to function as a receiving unit, a measuring unit, an alarm unit, a registering unit, and a transmitting unit; The management device stores a worker terminal ID related to the worker terminal; the registration unit accepts registration of one or more worker terminal IDs and stores the one or more worker terminal IDs accepted in the registration; The transmitter transmits a management device radio wave, The receiving unit receives worker terminal radio waves transmitted from a worker terminal held by a worker, construction site device radio waves transmitted from a construction site device installed at a construction site, and other management device radio waves transmitted from other management devices other than itself, The measurement unit measures the radio wave intensity of the worker terminal radio wave corresponding to the worker terminal ID, the construction site device radio wave, and the other management device radio wave, The alarm unit sounds an alarm when the radio wave intensity of the worker terminal radio wave of the worker terminal ID, the construction site device radio wave, and the other management device radio wave is equal to or less than a predetermined threshold based on the measurement result, The transmitting unit transmits the location information of the management device itself when the radio wave intensity of the worker terminal radio wave of the worker terminal ID, the construction site device radio wave, and the other management device radio wave is equal to or less than a predetermined threshold based on the result of the measurement. Management program.

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