JP7072459B2 - Location management system and location management method - Google Patents

Description

The present invention relates to a position management system and a position management method for managing the positions of at least one of a person and materials and equipment at a construction site.

Conventionally, various position management systems have been known for managing the positions of at least one of people and materials and equipment at a construction site. Japanese Unexamined Patent Publication No. 2007-73017 describes a work vehicle management system at a construction site on a high floor. The work vehicle management system includes a transmission device and a floor gate transmission device installed on each floor of the building, and a server installed on the first floor of the building. A work vehicle is movable on each floor of the building, and the floor gate transmission device on each floor transmits an identification ID that can identify the floor gate transmission device to the work vehicle. The work vehicle transmits the received identification ID to the server, and the server acquires the moving state of the work vehicle from the received identification ID.

Japanese Unexamined Patent Publication No. 2017-46085 describes a position management system for managing the positions of workers and materials / equipment in a tunnel mine. In this position management system, RF tags are attached to each of the workers and materials and equipment, and an RF tag compatible communication device is provided in the tunnel pit. The RF tag compatible communication device is installed in the battery loco mounted on the rail in the tunnel mine, and the position management identifier that identifies each of the worker and the equipment is obtained from the RFID tag. Further, the RF tag compatible communication device transmits the acquired position management identifier to the management device, and the management device stores the position management identifier so that the positions of the worker and the equipment can be grasped.

Japanese Unexamined Patent Publication No. 2004-171127 describes a method for supporting on-site work. In the on-site work support method, a management center server that manages workers who work on-site and a mobile terminal carried by the workers are used. The mobile terminal transmits the worker information including the worker's position information to the management center server at regular intervals. In addition, the on-site equipment placed at the site transmits the on-site equipment information including the position information and the status information of the on-site equipment to the management center server. The management center server acquires information on workers and on-site equipment at the site by receiving worker information and on-site equipment information.

Japanese Patent Application Laid-Open No. 2002-105989 describes a construction site management system. In the construction site management system, each of the multiple construction machines and material transport vehicles placed at the construction site has a position measurement device by GPS (Global Positioning System) and a wireless communication device by satellite communication using communication satellites. It is installed. The position measuring device detects the position information of each construction machine, and the detected position information is transmitted to the database management center by the wireless communication device. The location information transmitted to the database management center is displayed on the terminal equipment owned by each of the contractor and the material supplier.

Japanese Patent No. 3685090 describes a system for managing the number of operating machines of construction machinery. The operating unit management system includes an operating information detection device mounted on a hydraulic excavator as a construction machine, an operating information communication device capable of communicating with the operating information detection device, and an operating information communication device via a communication satellite and a base station. It is equipped with an operation information management device that can communicate with. The operation information detection device includes a GPS antenna and a positioning device, and the positioning device measures the position of the hydraulic excavator based on the transmission data from the GPS antenna. The operation information management device acquires the positions of a plurality of hydraulic excavators from the operation information communication device, and displays the number of hydraulic excavators by color-coded display or shaded pattern on the map.

Japanese Unexamined Patent Publication No. 2007-73017 Japanese Unexamined Patent Publication No. 2017-46085 Japanese Unexamined Patent Publication No. 2004-171127 Japanese Unexamined Patent Publication No. 2002-105989 Japanese Patent No. 3685090

By the way, as described above, when the position information of a person and materials / equipment is acquired by using GPS, the GPS radio wave may not reach the inside of the building at the construction site. Therefore, due to the weak GPS radio wave, it may not be possible to acquire the position information of a person or equipment existing inside the building with high accuracy. In addition, the above-mentioned work vehicle management system, position management system, and site work support method are all intended for the inside of the construction site, and the positions of people or materials and equipment located outside the construction site are acquired. You can't.

That is, with the above-mentioned work vehicle management system, position management system, and on-site work support method, it is not possible to acquire the position of a person or equipment heading to the construction site from a remote location, and the person or equipment inside the construction site. Only the position of can be displayed. Therefore, the current situation is that the position information of people or materials and equipment inside and outside the building at the construction site cannot be sufficiently displayed, and the position of people or materials and equipment cannot be managed accurately.

INDUSTRIAL APPLICABILITY The present invention can acquire at least one position of a person and materials and equipment located inside and outside the construction site, and can manage at least one position of a person and materials and equipment with high accuracy. The purpose is to provide a management system and a location management method.

The position management system according to the present invention is a position management system that manages at least one position of people and materials and equipment inside and outside the building at a construction site, and is a position management system that manages at least one position of people and materials and equipment inside the building. The indoor position acquisition unit that acquires at least one of the positions of people and materials and equipment outdoors in the building, and the outdoor position acquisition unit that acquires at least one of the positions of people and materials and equipment acquired by the indoor position acquisition unit. , And a display control unit that displays both the position of at least one of the person and the equipment acquired by the outdoor position acquisition unit.

This position management system includes an outdoor position acquisition unit that acquires the position of at least one of people and materials and equipment outdoors of the building at the construction site. Therefore, it is possible to acquire at least one of the positions of people and materials / equipment located outside the construction site. Further, in addition to the outdoor position acquisition unit, this position management system includes an indoor position acquisition unit that acquires at least one of the positions of people and materials / equipment inside the building. Therefore, even if GPS is not used, the indoor position acquisition unit acquires the position of at least one of the indoor people and materials and equipment, so that the position information of at least one of the people and materials and equipment existing inside the building can be obtained. It can be acquired with high accuracy. In addition, this position management system includes a display control unit that displays at least one of the position information of a person and equipment, and the display control unit is at least one of the person and equipment acquired by the indoor position acquisition unit. Both the position and the position of at least one of the person and the equipment acquired by the outdoor position acquisition unit are displayed. Therefore, at least one of the positions of people and materials and equipment inside the building can be displayed with high accuracy, and at least one of the positions of people and materials and equipment at a remote location outside the construction site and heading for the construction site. Can be displayed. Therefore, it is possible to sufficiently display the position information of at least one of the people and the materials and equipment inside and outside the building at the construction site, and it is possible to manage the position of at least one of the people and the materials and equipment with high accuracy. ..

Further, the indoor position acquisition unit may be provided on each of a plurality of floors of the building, and the display control unit may have a floor switching unit for switching and displaying each of the plurality of floors. In this case, an indoor position acquisition unit is provided on each of the plurality of floors of the building. Therefore, since at least one position of the person and the equipment can be acquired on each of the plurality of floors, at least one position of the person and the equipment can be displayed with higher accuracy. Further, since the display control unit has a floor switching unit for switching and displaying floors, it is possible to display at least one of the positions of people and materials and equipment for each floor of the building with high accuracy.

Further, the indoor position acquisition unit includes a transmitter for transmitting radio waves and a receiver for receiving radio waves transmitted from the transmitter, and the transmitter is attached to at least one of humans and materials and equipment. The receiver may be attached to the building. In this case, by attaching many receivers to the building, it is possible to reliably receive radio waves from a transmitter attached to at least one of humans and materials and equipment. Therefore, it is possible to acquire the position of at least one of the person and the equipment in the room of the building with higher accuracy.

The receiver may also be mounted adjacent to the lighting that illuminates the interior of the building. Generally, at the construction site, the lighting is placed in a position that does not interfere with the work. Therefore, by mounting the receiver at a position adjacent to the lighting, the receiver can be kept out of the way of work. Further, by connecting the power cable extending from the receiver to the power cable adjacent to the power cable extending from the lighting, it is possible to efficiently supply power to the receiver.

Further, the display control unit may display an icon corresponding to at least one of a person and a material / equipment. In this case, since at least one of the positions of the person and the equipment is displayed as an identifiable icon, at least one of the person and the equipment can be displayed more clearly. Therefore, it is possible to improve the visibility of at least one of the positions of people and materials and equipment.

The position management method according to the present invention is a position management method for managing the position of at least one of people and materials and equipment inside and outside the building at a construction site, and is at least one of people and materials and equipment located inside the building. The process of installing the transmitter in the building, the process of installing the receiver in the building, the process of the receiver receiving the radio waves transmitted from the transmitter, and the process of calculating the position of the transmitter from the radio waves received by the receiver. The process comprises and comprises a step of displaying at least one of the positions of people and equipment based on the calculated position of the transmitter, and in the step of displaying, at least one of the person and equipment inside the building. Both the location and the location of at least one of the people and equipment outside the building are displayed.

In this position management method, a transmitter is installed in at least one of people and materials / equipment located inside the building, and the receiver receives radio waves from the transmitter to calculate the position of the transmitter in the building. It is possible to obtain the position of at least one of the person and the equipment in the room. Therefore, since it is possible to acquire the position of at least one of the indoor person and the equipment without using GPS, the position information of at least one of the person and the equipment existing inside the building can be acquired with high accuracy. can do. In addition, at least one position of people and materials and equipment inside the building and at least one position of people and materials and equipment outside the building are displayed together. Therefore, at least one of the positions of people and materials and equipment inside the building can be displayed with high accuracy, and at least one of the positions of people and materials and equipment at a remote location outside the construction site and heading for the construction site. Can be displayed. Therefore, it is possible to sufficiently display the position information of at least one of the people and the materials and equipment inside and outside the building at the construction site, and it is possible to manage the position of at least one of the people and the materials and equipment with high accuracy. .. Further, in this position management method, the transmitter is installed in at least one of people and materials and equipment, and the receiver is installed in the building. Therefore, many receivers can be attached to the building, and radio waves from the transmitter can be reliably received, so that the position acquisition of at least one of the person and the equipment inside the building can be performed with higher accuracy. be able to.

According to the present invention, it is possible to acquire at least one of the positions of people and materials / equipment located inside and outside the construction site, and to manage at least one of the positions of people and materials / equipment with high accuracy. can.

FIG. 1 is a block diagram showing a position management system according to an embodiment. FIG. 2 is a diagram showing an example of a person and materials / equipment displayed by the position management system of FIG. FIG. 3 is a diagram showing an example in which information on people and materials / equipment is displayed while enlarging FIG. 2. FIG. 4 is a diagram schematically showing a transmitter and a receiver of the position management system of FIG. FIG. 5 is a perspective view showing an example of the arrangement of the transmitter of FIG. FIG. 6 is a perspective view showing another example of the arrangement of the transmitter of FIG. FIG. 7 is a perspective view showing an example of the arrangement of the receiver of FIG. FIG. 8 is an enlarged perspective view of the receiver of FIG. 7. FIG. 9 is a diagram showing an example of the locus display function of the position management system of FIG. FIG. 10 is a diagram showing another example of the locus display function of the position management system of FIG. FIG. 11 is a diagram showing an example of the heat map display function of the position management system of FIG. FIG. 12 is a diagram showing an example of the parking prohibited area display function of the position management system of FIG. 1. FIG. 13 is a diagram showing an example of the on-site display function of the position management system of FIG. FIG. 14 is a flowchart showing an example of the process of the position management method according to the embodiment.

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

At the construction site, it is important to properly manage people including workers and materials and equipment. In the present specification, "management" means to let another person grasp the position or state of a person or equipment, for example, the position of the person or equipment is displayed on the screen and the person or equipment is displayed. It includes letting others know the position of. At the construction site, the current situation is that information on people and materials and equipment is not converted into data, so for example, it takes time to find a foreman, or unused materials and equipment are left in the basement. The current situation is that people and materials and equipment are not properly managed.

The position management system and the position management method according to the present embodiment can improve the efficiency of site management at the construction site and management of people and materials and equipment, and specifically, visualization of people and materials and equipment. (Visualization) is possible. That is, in the position management system and the position management method according to the present embodiment, it is possible to grasp at a glance where people and materials / equipment are located both inside and outside the construction site. For example, it is easy to see if people are gathering in a specific place, if there are people working in dangerous places, and if materials and equipment are left in place. Contributes to the efficiency of staffing, reduction of loss of materials and equipment, and cost reduction.

FIG. 1 is a block diagram showing a position management system 1 according to the present embodiment. FIG. 2 is a diagram showing an example of a map G displayed on a display 30 described later in the position management system 1. As shown in FIGS. 1 and 2, the position management system 1 includes an indoor position acquisition unit 11 for acquiring the positions of the indoor person M and the equipment E in the building C of the construction site A, and an outdoor person in the building C. It includes an outdoor position acquisition unit 12 that acquires the positions of M and the equipment E, a control unit 20 that controls the position management system 1, and a display 30 that displays the position information of the person M and the material E.

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

Each functional element of the server of the control unit 20 is realized by having a processor or a main storage unit read a predetermined software and execute the software. The processor operates the communication control unit, the input device, or the output device described above according to the software, and reads and writes data in the main storage unit or the auxiliary storage unit. The data or database required for server processing is stored in the main storage or auxiliary storage. The display 30 includes a display of an information terminal such as a personal computer or a notebook computer, and a display of a mobile terminal such as a mobile phone or a tablet. Further, the control unit 20 has a display control unit 21 that controls the position display of the person M and the equipment E on the display device 30.

FIG. 3 shows an example of a screen W showing information on the person M and the equipment E at the construction site A displayed on the display 30 by the display control unit 21. FIG. 3 shows a map G which is an enlargement of the map G of FIG. As shown in FIGS. 1 to 3, the display control unit 21 includes the position information G1 of the person M and the equipment E acquired by the indoor position acquisition unit 11, the person M acquired by the outdoor position acquisition unit 12, and the person M. Both the position information G2 of the equipment E and the position information G2 are displayed. The scales of the position information G1 and G2 of the map G can be freely changed.

The display 30 includes a display 32 provided at the construction site A, and the display 32 is visually recognized by a person M at the construction site A. The same information as the screen W is displayed on the display 32. By arranging the display 32 at the construction site A in this way, the positions of the person M and the equipment E at the construction site A can be grasped at the construction site A, and the work at a remote location away from the construction site A can be grasped. The positions of the vehicle (materials and equipment E) and the worker (person M) can be grasped in the construction site A.

In the present specification, "displaying together" means a state in which the plurality of information can be visually recognized at the same time by displaying the plurality of information together on the screen. For example, the plurality of information are displayed on the same screen. Includes doing. "Materials and equipment" indicates materials and equipment used inside and outside the construction site A, for example, work vehicles such as aerial work platforms, bogies, stepladders such as standing horses, forklifts, hand pallets, assembly tables, and ladders. And camera B are included. "Person" includes workers, foremen and employees.

The display control unit 21 updates the position information G1 acquired by the indoor position acquisition unit 11 and the position information G2 acquired by the outdoor position acquisition unit 12 at regular time intervals (for example, 5 seconds or more and 10 seconds or less). do. In this way, the display control unit 21 updates the position information G1 and G2 at regular time intervals to display the positions of the person M and the equipment E in real time, so that the locations of the person M and the equipment E can be seen digitally. This will improve the efficiency of management of construction site A and prevent the loss of materials and equipment E.

The display control unit 21 displays the icon D1 corresponding to each of the person M and the material / equipment E as the position information G1 and G2 of the person M and the material / equipment E. The icon D1 is an icon indicating the types of the person M and the equipment E. In the example shown in FIG. 3, the icon D1 includes a forklift icon which is a kind of equipment E, a dolly icon which is a kind of equipment E, and a person M icon.

The display control unit 21 further displays a table D including information on the person M and the equipment E displayed on the map G. Table D displays a column displaying the icon D1 indicating the types of the person M and the material / equipment E, a column displaying the name D2 of the person M and the material / equipment E, and an area D3 in which the person M and the material / equipment E exist. Has a row and. The name D2 of the person M and the material / equipment E includes the name of the material / equipment E such as a forklift and a trolley, and the name of the person M. The area D3 indicates the floor (number of floors) where the person M or the equipment E exists inside the building C, and indicates a predetermined place name (for example, "Tokyo") outside the building C.

The display control unit 21 has a floor switching unit 22 that switches the floor of the building C to be displayed on the display 30. The floor switching unit 22 displays, for example, a floor switching button 31 capable of switching the floor to be displayed on the display 30. The floor switching button 31 is displayed as many as the number of floors of the building C, and in the example of FIG. 3, it corresponds to each of the first floor (1F), the second floor (2F) ... the 10th floor (10F) and the rooftop (RF). 11 floor switching buttons 31 are displayed. When the floor switching button 31 is pressed, the person M and the equipment E existing on the designated floor are displayed. As a specific example, when the floor switching button 31 on the 7th floor is pressed, the floor switching unit 22 switches the position information G1 to the position information of the person M and the equipment E on the 7th floor of the building C.

The outdoor position acquisition unit 12 includes, for example, a GPS transmitter provided in the material / equipment E including a mobile terminal or a work vehicle owned by the person M. In this case, the outdoor position acquisition unit 12 acquires the self-position information of each of the person M and the material / equipment E by receiving the radio wave from the satellite. The outdoor position acquisition unit 12 transmits the self-position information of the person M and the material / equipment E obtained by GPS to the control unit 20.

Next, the indoor position acquisition unit 11 of the position management system 1 will be described with reference to FIG. As shown in FIG. 4, the indoor position acquisition unit 11 includes a transmitter 13 attached to each of the person M to be managed and the equipment E, a plurality of receivers 14 attached to a plurality of locations in the building C, and a plurality of receivers 14. A router 15 capable of communicating with each of the plurality of receivers 14 is provided. The router 15 may be, for example, a Wifi router mounted on each floor of the building C, and the type and arrangement mode of the router 15 can be appropriately changed.

The transmitter 13 transmits radio waves at regular intervals, for example, and the receiver 14 receives the radio waves transmitted by the transmitter 13. As an example, the three receivers 14 receive the radio waves from the transmitter 13, and the control unit 20 further acquires the radio waves received by the three receivers 14 via the router 15. Then, the control unit 20 calculates the position information of the transmitter 13 from the strength of the radio wave received by each of the three receivers 14, and uses the calculated position information of the transmitter 13 as the position of the person M or the equipment E. The display control unit 21 displays on the display 30. That is, the control unit 20 calculates the position of the person M or the material / equipment E by triangulation and displays the position.

The transmitter 13 is, for example, a beacon installed in each of the person M and the material / equipment E. Since the transmitter 13 is a beacon, the size of the transmitter 13 and the battery consumption of the transmitter 13 can be reduced as compared with other transmitters. The transmitter 13 transmits, for example, identification information (ID information) that can identify the transmitter 13 by BLT (Bluetooth (registered trademark) Low Energy) at regular intervals.

In the case of a beacon, the transmitter 13 has only a function of transmitting identification information, so that the configuration can be simplified. As an example, the range in which the radio wave of the transmitter 13 can be transmitted is 400 m or more and 500 m or less, but it can be changed as appropriate. The transmitter 13 may be a device other than a beacon, and is, for example, a remote IC card (Integrated Circuit Card) capable of long-distance communication of several meters or more using a microwave frequency band. It may be an RFID tag or an RFID tag, as long as the above-mentioned identification information can be transmitted to the receiver 14.

5 and 6 show an example of a transmitter 13 attached to a connected assembly table E1 which is a kind of equipment E and a transmitter 13 attached to a person M, respectively. As shown in FIG. 5, the transmitter 13 is attached between the rib portions E11 regularly arranged on the surface of the articulated assembly table E1 and is installed so as not to protrude from the articulated assembly table E1. The rule. By installing the transmitter 13 in a portion where the material / equipment E does not protrude or on the back side of the material / equipment E in this way, it is possible to suppress a situation in which an object collides with the transmitter 13 and the transmitter 13 is detached from the material / equipment E. It is possible.

As shown in FIG. 6, the transmitter 13 may be attached to the edge H1 of the helmet H worn on the person M via the clip K. In this case, the transmitter 13 is attached to the edge H1 by fixing the transmitter 13 and sandwiching the edge H1 of the helmet H in the clip K extending from the transmitter 13. By attaching the transmitter 13 to the edge H1 of the helmet H in this way, the transmitter 13 can be easily attached and detached, and the transmitter 13 can be kept out of the way during work or the like. ..

FIG. 7 is a diagram showing an example of a receiver 14 mounted on the building C. FIG. 8 is an enlarged view of the receiver 14 of FIG. The receiver 14 is a device that receives radio waves from the transmitter 13, and is attached to each floor of the building C. The receiver 14 is suspended from the ceiling C3 of the building C, for example. The receiver 14 is attached, for example, at a position adjacent to the illumination C1 that illuminates the interior of the building C.

Specifically, the power cable 14a of the receiver 14 is connected to the power cable C2 extending together with the power cable that supplies power to the lighting C1, and the receiver 14 is attached in a suspended state. By mounting the receiver 14 in a state of being suspended at a position adjacent to the illumination C1 in this way, the receiver 14 can be easily attached to and detached from the building C, and the receiver 14 is not disturbed. Can be. The attached receiver 14 may be provided with waterproof measures or dustproof measures.

Further, with the construction of the building C, the receiver 14 is attached to each floor. At this time, the receiver 14 may be attached to the floor to be newly constructed by removing the receiver 14 from the floor where the construction is completed. In this way, the installation of the plurality of receivers 14 in the building C may be replaced with a new floor each time the floor is constructed. In this case, the number of receivers 14 installed in the building C can be reduced.

As shown in FIGS. 1, 9 and 10, the display control unit 21 further includes a locus display unit 23 that displays the locus T of the person M and the material / equipment E that have moved in a certain time. The locus display unit 23 displays the locus T from the positions of the person M and the equipment E acquired by the indoor position acquisition unit 11 and the positions of the person M and the equipment E acquired by the outdoor position acquisition unit 12. The locus display unit 23 may display, for example, the locus T of the designated person M and the material / equipment E, or may display the locus T of all the displayed people M and the material / equipment E. In this way, by displaying the locus T of the person M and the material / equipment E inside and outside the construction site A on the display 30, whether the person M and the material / equipment E are moving properly and the material / equipment E is used appropriately. It is possible to grasp whether or not it has been done.

As shown in FIGS. 1 and 11, the display control unit 21 further includes a heat map display unit 24 that displays a heat map P indicating the ease of gathering of the person M and the equipment E. The heat map display unit 24 displays, for example, the ease of gathering of the person M and the equipment E at each part of the construction site A on the display 30 by changing the color. In the example shown in FIG. 11, the darker the color, the easier it is for the person M and the equipment E to gather, and the lighter the color, the more difficult it is for the person M and the equipment E to gather. In this way, by displaying the ease of gathering of the person M and the material / equipment E on the heat map P by the heat map display unit 24, it is possible to easily grasp the place where the person M and the material / equipment E are likely to gather.

As shown in FIGS. 1 and 12, the display control unit 21 further includes a parking prohibited area display unit 25 that displays a preset parking prohibited area R on the display 30. The parking prohibited area display unit 25 displays the parking prohibited area R superimposed on the position information G2 of the person M and the equipment E displayed by the display control unit 21.

Further, the control unit 20 includes a parking prohibition determination unit 27 that determines whether or not the work vehicle is parked in the parking prohibition area R for a certain period of time or longer. The parking prohibition determination unit 27 determines whether or not there is a work vehicle V that has been parked in the parking prohibition area R for a certain period of time or more among the plurality of work vehicles V displayed on the display 30.

The parking prohibition determination unit 27 warns when it is determined that there is a work vehicle V parked in the parking prohibition area R for a certain period of time or longer. The parking prohibition determination unit 27 may output the alert display D4 to the display 30 or may output a voice as the warning. Further, the parking prohibition determination unit 27 may send an e-mail to the mobile terminal of the user of the work vehicle V as the warning. By issuing the warning by the parking prohibition determination unit 27 in this way, it is possible to urge the parking prohibition of the work vehicle V in the parking prohibition area R.

As shown in FIGS. 1 and 13, the display control unit 21 includes a site display unit 26 that displays a real-time image F of the construction site A. A plurality of cameras B are arranged at the construction site A, and the site display unit 26 displays the real-time image F of the construction site A taken by the camera B on the display 30. The camera B is, for example, an omnidirectional network camera, and shoots in a 360 ° direction. In this way, the site display unit 26 can directly visually recognize the construction site A by displaying the real-time images F of the plurality of cameras B.

Further, the control unit 20 may include an arrival time prediction unit 28 that predicts the arrival time of the work vehicle V to the construction site A. The arrival time prediction unit 28 predicts the time when the work vehicle V arrives at the construction site A from the position and time of the work vehicle V acquired by the outdoor position acquisition unit 12, for example. The arrival time prediction unit 28 displays the predicted arrival time of the work vehicle V on the display 30. In this way, the arrival time prediction unit 28 predicts and displays the arrival time of the work vehicle V, so that the worker or the like of the construction site A can grasp the arrival prediction time of the work vehicle V. ..

Next, the position management method according to the present embodiment will be described with reference to the flowchart of FIG. Hereinafter, a method of managing the person M and the equipment E inside and outside the building C by using the position management system 1 will be described. First, the transmitter 13 is installed in the person M and the equipment E (step S1). For example, the transmitter 13 is attached to the non-protruding portion of the material / equipment E or the back side of the material / equipment E, and the transmitter 13 is attached to the edge H1 of the helmet H of the person M by the clip K.

Further, a plurality of receivers 14 are attached to each floor of the building C (step S2). For example, the receiver 14 is installed in the building C by suspending the receiver 14 from the ceiling C3 of the building C at a position adjacent to the lighting C1 and connecting the power cable 14a of the receiver 14 to the power cable C2. The installation of the transmitter 13 in step S1 and the installation of the receiver 14 in step S2 may be performed at the same time, for example, and the order of steps S1 and S2 is not particularly limited.

After the installation of the transmitter 13 and the installation of the receiver 14 are completed, the person M performs various operations using the materials and equipment E at the construction site A. For example, at the construction site A, construction work for constructing the building C is executed by a plurality of people M. At this time, radio waves are transmitted from the transmitters 13 attached to each of the person M and the equipment E (step S3), and the plurality of receivers 14 receive the radio waves (step S4).

The radio waves from the transmitter 13 received by each of the plurality of receivers 14 are output to the control unit 20 via the router 15. The control unit 20 calculates the position information of the transmitter 13 from the strength of the radio wave from the transmitter 13 received by each of the plurality of receivers 14 (step S5). After the position information of the transmitter 13 is calculated by the control unit 20, the positions of the person M and the equipment E based on the calculated position information are displayed as the icon D1 by the control unit 21 on the display 30 (step S6). .. Steps S3 to S6 are repeated at regular intervals (for example, every 5 to 10 seconds), and the positions of the person M and the equipment E are updated at regular intervals. After that, a series of steps is completed.

Next, the action and effect obtained from the position management system 1 and the position management method according to the present embodiment will be described in detail. As shown in FIGS. 1 and 2, the position management system 1 and the position management method include an outdoor position acquisition unit 12 that acquires the positions of the person M and the equipment E outdoors in the building C of the construction site A. Therefore, it is possible to acquire the positions of the person M and the equipment E located outside the construction site A. Further, the position management system 1 includes an indoor position acquisition unit 11 for acquiring the positions of the person M and the equipment E inside the building C, in addition to the outdoor position acquisition unit 12. Therefore, even if the GPS is not used, the indoor position acquisition unit 11 acquires the indoor person M and the material / equipment E, so that the position information of the person M and the material / equipment E existing indoors in the building C can be acquired with high accuracy. can do.

Further, the position management system 1 includes a display control unit 21 that displays the position information of the person M and the material / equipment E, and the display control unit 21 includes the person M and the material / equipment E acquired by the indoor position acquisition unit 11. And the positions of the person M and the equipment E acquired by the outdoor position acquisition unit 12 are both displayed. Therefore, the positions of the person M and the material / equipment E inside the building C can be displayed with high accuracy, and the positions of the person M and the material / equipment E who are in a remote place outside the construction site A and head toward the construction site A can be displayed. Can be displayed. Therefore, the position information of the person M and the material / equipment E inside and outside the building C of the construction site A can be sufficiently displayed, and the positions of the person M and the material / equipment E can be managed with high accuracy.

Further, the indoor position acquisition unit 11 is provided on each of the plurality of floors of the building C, and as shown in FIGS. 1 and 3, the display control unit 21 switches and displays each of the plurality of floors. It has a part 22. An indoor position acquisition unit 11 is provided on each of the plurality of floors of the building C, and the positions of the person M and the material / equipment E can be acquired on each of the plurality of floors. It can be displayed with higher accuracy. Further, since the display control unit 21 has the floor switching unit 22 for switching and displaying the floor, the positions of the person M and the equipment E can be displayed for each floor of the building C.

Further, as shown in FIG. 4, the indoor position acquisition unit 11 includes a transmitter 13 for transmitting radio waves and a receiver 14 for receiving radio waves transmitted from the transmitter 13. Is attached to the person M and the equipment E, and the receiver 14 is attached to the building C. Therefore, by attaching many receivers 14 to the building C, it is possible to reliably receive the radio waves from the transmitters 13 attached to the person M and the equipment E. Therefore, it is possible to acquire the positions of the person M and the equipment E indoors of the building C with high accuracy.

Further, as shown in FIG. 7, the receiver 14 is attached at a position adjacent to the illumination C1 that illuminates the interior of the building C. Generally, at the construction site A, the lighting C1 is arranged at a position that does not interfere with the work. Therefore, by mounting the receiver 14 at a position adjacent to the illumination C1, the receiver 14 can be kept out of the way of work. Further, by connecting the power cable 14a extending from the receiver 14 to the power cable C2 extending along the power cable extending from the lighting C1, the power can be efficiently supplied to the receiver 14.

Further, as shown in FIG. 3, the display control unit 21 displays the icon D1 corresponding to each of the person M and the material / equipment E. Therefore, since the positions of the person M and the material / equipment E are displayed as the icon D1 that can identify the person M and the material / equipment E, the person M and the material / equipment E can be displayed more clearly. Therefore, the visibility of the position display of the person M and the material / equipment E can be improved.

Although the embodiment of the position management system and the position management method according to the present invention has been described above, the present invention is not limited to the above-described embodiment and is modified to the extent that the gist described in each claim is not changed. , Or it may be applied to other things. That is, the configuration of each part of the position management system and the content and order of each step of the position management method can be variously modified without changing the gist of each claim.

For example, in the above-described embodiment, the indoor position acquisition unit 11 acquires the positions of the indoor person M and the equipment E using the transmitter 13 and the receiver 14, and the outdoor position acquisition unit 12 uses the GPS to acquire the positions of the person M. And an example of acquiring the position of the material / equipment E was explained. However, the method in which the indoor position acquisition unit and the outdoor position acquisition unit acquire the positions of the person M and the material / equipment E is not limited to the above example, and can be appropriately changed. For example, the outdoor position acquisition unit may acquire the positions of the person M and the equipment E outdoors by using the transmitter and the receiver. As described above, the technique used by the indoor position acquisition unit 11 and the technique used by the outdoor position acquisition unit 12 may be the same as each other or may be different from each other.

Further, in the above-described embodiment, an example in which the receiver 14 is installed in a manner of being suspended from the ceiling C3 at a position adjacent to the illumination C1 has been described. However, the installation location, installation means, installation method, and installation mode of the receiver 14 in the building C can be appropriately changed. The installation location, installation means, installation method, and installation mode of the transmitter 13 for the person M and the material / equipment E can be changed as appropriate.

Further, in the above-described embodiment, the floor switching unit 22, the locus display unit 23, the heat map display unit 24, the display control unit 21 having the parking prohibited area display unit 25 and the site display unit 26, the parking prohibition determination unit 27, and the parking prohibition determination unit 27. The control unit 20 including the arrival time prediction unit 28 has been described. However, in the display control unit, at least one of the functions of the floor switching unit 22, the locus display unit 23, the heat map display unit 24, the parking prohibited area display unit 25, and the site display unit 26 may be omitted, or the control unit may be omitted. Then, at least one of the parking prohibition determination unit 27 and the arrival time prediction unit 28 may be omitted. In this way, the configuration of the control unit can be changed as appropriate.

Further, in the above-described embodiment, an example in which the icon D1, the name D2, and the area D3 are displayed on the display 30 as a table D has been described. However, the information in the table displayed on the display 30 can be changed as appropriate, and the content of the information displayed on the display 30 and the layout of the display on the display 30 can be changed as appropriate.

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

Further, in the above-described embodiment, the position management system 1 that manages the person M and the equipment E has been described. However, the position management system and the position management method according to the present invention may be those that manage only people or those that manage only materials and equipment. That is, the display control unit may display only the position of a person or may display only the position of materials and equipment.

1 ... location management system, 11 ... indoor position acquisition unit, 12 ... outdoor position acquisition unit, 13 ... transmitter, 14 ... receiver, 14a ... power cable, 15 ... router, 20 ... control unit, 21 ... display control unit, 22 ... Floor switching unit, 23 ... Trajectory display unit, 24 ... Heat map display unit, 25 ... Parking prohibited area display unit, 26 ... Site display unit, 27 ... Parking prohibition determination unit, 28 ... Arrival time prediction unit, 30 ... Display Vessel, 31 ... Floor switching button, 32 ... Display, A ... Construction site, B ... Camera, C ... Building, C1 ... Lighting, C2 ... Power cable, C3 ... Ceiling, D ... Table, D1 ... Icon, D2 ... Name, D3 ... area, D4 ... alert display, E ... equipment, E1 ... articulated assembly table, E11 ... rib part, F ... real-time image, G ... map, G1, G2 ... position information, H ... helmet, H1 ... edge, K ... Clip, M ... People, P ... Heat map, R ... Parking prohibited area, T ... Trajectory, V ... Work vehicle, W ... Screen.

Claims (4)

It is a position management system that manages the position of materials and equipment inside and outside the building at the construction site.
An indoor position acquisition unit that acquires the position of the materials and equipment inside the building,
An outdoor position acquisition unit that acquires the position of the materials and equipment outdoors in the building,
A display control unit that displays both the position of the material / equipment acquired by the indoor position acquisition unit and the position of the material / equipment acquired by the outdoor position acquisition unit.
Equipped with
The indoor position acquisition unit includes a transmitter that transmits radio waves and a receiver that receives radio waves transmitted from the transmitter.
The transmitter is installed on the material and equipment so as not to protrude from the material and equipment.
The display control unit further includes a heat map display unit that displays a heat map indicating the ease of gathering of the materials and equipment.
Location management system. The indoor position acquisition unit is provided on each of a plurality of floors of the building.
The display control unit has a floor switching unit that switches and displays each of the plurality of floors.
The position management system according to claim 1. It is a position management method that manages the position of materials and equipment inside and outside the building at the construction site.
The process of installing the transmitter on the materials and equipment located inside the building,
The process of installing the receiver in the building and
The process in which the receiver receives the radio waves transmitted from the transmitter, and
The process of calculating the position of the transmitter from the radio waves received by the receiver, and
The process of displaying the position of the material and equipment based on the calculated position of the transmitter, and
Equipped with
In the display step, the positions of the materials and equipment inside the building and the positions of the materials and equipment outside the building are both displayed.
In the process of installing the transmitter, the transmitter is installed on the material and equipment so as not to protrude from the material and equipment .
In the process of displaying, a heat map showing the ease of gathering of the materials and equipment is displayed.
Location management method. In the process of installing the receiver in the building, every time the floor of the building is constructed , the installation of the plurality of receivers in the building is replaced with a new floor.
The position management method according to claim 3 .

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