Concrete placing management system and concrete placing management method

Abstract

To provide a concrete placing management system 10 and a concrete placing management method for supporting progress management of concrete placing work.SOLUTION: Provided is a concrete placing management system 10, including: a transmitter 41 arranged in a placing section 67a in which concrete is to be placed; a receiver 42 arranged outside the placing section 67a; determination means for determining a state of the transmitter 41 arranged in the placing section 67a; and output means for outputting response information based on a determination result obtained by the determination means. The transmitter 41 and the receiver 42 are configured to perform wireless communication using electric waves in a frequency band that attenuates as the water content is larger. The determination means determines that, when the receiver 42 in a situation of receiving an identifier 41a of the transmitter 41 is not receiving the identifier 41a, the transmitter 41 arranged in the placing section 67a is in a state buried in concrete.SELECTED DRAWING: Figure 10

Description

[Technical field]

[0001] The present invention relates to a concrete pouring management system and a concrete pouring management method that, for example, judges the concrete pouring status and supports progress management of concrete pouring work. [Background technology]

[0002] Conventionally, at concrete construction sites, concrete (fresh concrete) transported by an agitator truck (also called a mixer truck) is poured into a formwork using a concrete pump truck or the like.

[0003] At the time, at the concrete construction site, for example, in order to prevent the occurrence of cold joints, it was necessary to carry out the concrete pouring work in a planned and efficient manner. Therefore, a concrete pouring management system has been proposed to manage the concrete pouring status.

[0004] For example, in Patent Document 1, each cell of design data created using a spreadsheet software is treated as a pouring area that divides the concrete construction area, and the progress of the pouring work is managed by inputting various information such as the pouring start time into each cell.

[0005] However, in the technology of Patent Document 1, users involved in concrete pouring work need to input various information for each cell of the design data, which is a time-consuming task for the users. For this reason, there has been a need for an easier way to manage the progress of concrete pouring work at concrete construction sites. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] JP 2020-20103 A Summary of the Invention [Problem to be solved by the invention]

[0007] In view of the above-mentioned problems, the present invention aims to provide a concrete pouring management system and a concrete pouring management method that support progress management of concrete pouring work. [Means for solving the problem]

[0008] This invention is a concrete pouring management system that assists in managing the progress of concrete pouring work, and is equipped with a transmitter and a receiver, one of which is placed in the pouring area where the concrete is poured, and the other of which is placed outside the pouring area, a judgment means for judging the status of the transmitter or receiver placed in the pouring area, and an output means for outputting output information based on the judgment result by the judgment means, wherein the transmitter and the receiver are configured to wirelessly communicate using radio waves in a frequency band that is attenuated or absorbed by moisture the more moisture there is, and the judgment means is characterized in that when the receiver, which is in a position to receive information transmitted from the transmitter, does not receive the transmitted information, it judges that the transmitter or receiver placed in the pouring area is buried in the concrete.

[0009] The present invention also provides a concrete pouring management method for supporting progress management of concrete pouring work, and is characterized by comprising the following steps: a transmitting step in which a transmitter located in either the pouring area where the concrete is poured or outside the pouring area transmits transmission information to a receiver located in the other area; a receiving step in which the receiver receives the transmission information from the transmitter using radio waves in a frequency band that attenuates the more moisture there is or is absorbed by moisture; a determination step in which a determination means determines that the transmitter or receiver located in the pouring area is buried in the concrete if the receiver, which is in a position to receive the transmission information from the transmitter, does not receive the transmission information; and an output step in which an output means outputs output information based on the determination result from the determination step.

[0010] The above-mentioned pouring section refers to a section of a predetermined size that divides the construction area where concrete is poured. "Placed within the pouring section" means that the transmitter is inserted inside the concrete poured into the pouring section, or is placed in advance in the pouring section before the concrete is poured.

[0011] The transmitter refers to a transmitter that transmits radio waves of a specific frequency, or an RF tag used in a contactless IC card, or the like. The above-mentioned determination means refers to a means for determining, when the receiver receives the transmission information, that the transmitter or receiver arranged in the pouring section is not buried in concrete.

[0012] The output information includes, for example, information on the compaction state of the concrete, information on the pouring height of the concrete, information on the filling state of the concrete, and the like. The output means refers to a means for outputting output information via a communication line, a means for storing output information, a means for displaying output information, a means for notifying by sounding or lighting, or a means for printing output information.

[0013] The transmission information may be information indicating an identifier unique to each transmitter, information indicating the location of the transmitter, or the radio waves themselves transmitted by the transmitter. A case where a receiver that is in a position to receive the transmitted information from the transmitter is not receiving the transmitted information refers to a case where a receiver that would receive the transmitted information from the transmitter if there was nothing obstructing its reception is not receiving the transmitted information due to radio wave blocking, or where the transmitted information is not being received stably due to a significant drop in radio wave strength.

[0014] According to this invention, progress management of concrete pouring work can be assisted by cooperation between a transmitter and a receiver that wirelessly communicate using radio waves in a frequency band that is attenuated or absorbed by moisture the greater the moisture content.

[0015] Specifically, the receiver receives the information transmitted by the transmitter using radio waves in a frequency band that is attenuated or absorbed by moisture the more moisture there is, so that, for example, if no concrete is being poured in the pouring area where the transmitter is located, a receiver placed outside the pouring area can receive the information transmitted by the transmitter.

[0016] On the other hand, when concrete is poured in the pouring area where the transmitter is located, the radio waves are significantly attenuated or absorbed by the moisture in the concrete, so that a receiver placed outside the pouring area cannot receive the information transmitted by the transmitter, or cannot stably receive the transmitted information due to a significant decrease in radio wave strength.

[0017] Therefore, if the receiver does not receive transmission information from the transmitter, the concrete pouring management system can determine that the transmitter or receiver placed in the pouring area is buried in concrete. This allows the concrete pouring management system to know the concrete pouring status.

[0018] For example, if a transmitter or receiver placed in the pouring section is fixed to a vibrator, the concrete pouring management system can identify a state in which the transmitter or receiver is buried in the concrete as indicating that compaction work is underway. Alternatively, if multiple transmitters are arranged vertically in the pouring area in advance, the concrete pouring management system can identify the position of the transmitter buried in the concrete as the pouring height of the concrete poured into the pouring area.

[0019] Furthermore, by using the output means to output information based on the judgment result by the judgment means, the concrete pouring management system can inform a user who manages the progress of the pouring work, for example, of the concrete pouring status, thereby assisting in the progress management of the concrete pouring work.

[0020] As an aspect of the present invention, the transmitter and the receiver may be configured to wirelessly communicate at a frequency in the 2.4 GHz band. According to this configuration, existing devices that are compatible with the short-range wireless communication standard using frequencies in the 2.4 GHz band or the wireless LAN communication standard can be used as the transmitter and receiver.

[0021] Furthermore, because wireless signals in the 2.4 GHz frequency band are attenuated or absorbed by moisture in concrete, the concrete pouring management system can help manage the progress of pouring work using existing equipment.

[0022] In another aspect of the present invention, the transmitter is fixed to a member that is inserted and removed from the concrete poured into the pouring section, and the device may be provided with a failure determination means for determining that the transmitter or receiver is malfunctioning if the receiver does not receive the transmission information from the transmitter that has been pulled out of the buried concrete, and an alarm means for notifying the malfunction of the transmitter or receiver if the failure determination means determines that the transmitter or receiver is malfunctioning.

[0023] According to this configuration, a malfunction of the transmitter or receiver can be easily notified to the user. Therefore, the concrete pouring management system can prevent the concrete pouring status from being erroneously determined due to a malfunction of the transmitter or receiver. This enables the concrete pouring management system to accurately assist in managing the progress of pouring work.

[0024] As a further aspect of the present invention, the transmitter may be detachably fixed to a vibrator used for compacting the concrete. According to this configuration, the concrete compaction work can be determined based on the state of burial of the transmitter in the concrete.

[0025] This enables the concrete pouring management system to manage the compaction of concrete. In addition, because the transmitter is removably fixed to the vibrator, the concrete pouring control system can use existing vibrators and can easily replace or repair the transmitter.

[0026] In another aspect of the present invention, an acceleration sensor is provided which detects vibrations of the vibrator, and the determination means may be configured to determine that the state in which the transmitter is embedded in the concrete is normal when the acceleration sensor detects vibrations of the vibrator and the receiver has not received the transmission information for a predetermined period of time.

[0027] According to this configuration, the time when the receiver does not receive the transmission information can be regarded as the time when the concrete compaction work is being performed. Therefore, when the receiver does not receive the transmission information for a predetermined period of time, the concrete pouring management system can determine that the concrete compaction has been performed normally.

[0028] This allows the concrete pouring management system to easily obtain the time spent on compaction and accurately determine the compaction state, thereby enabling reliable management of concrete compaction.

[0029] As a further aspect of the present invention, the output means may be configured to output at least a period of time during which the receiver is not receiving the transmission information in association with the output information. According to this configuration, the compaction time can be output in association with the compaction state, so that the compaction of concrete can be managed with greater precision.

[0030] Another aspect of the invention includes a memory means for storing drawing data showing a plan view of the construction area where the concrete is to be poured, a camera for imaging the construction area at fixed points and outputting the imaging information, a tip detection means for detecting the position of the tip of the tubular body in the imaging information based on the characteristics of the tubular body transporting the concrete, a coordinate conversion means for converting tip position information indicating the position of the tip into pouring coordinate information indicating position coordinates in the plan view of the construction area, and a mapping means for associating the pouring coordinate information indicating the position of the tip with the drawing data as a pouring completion position when the judgment result by the judgment means is that compaction is normal, and the output means may be configured to output the drawing data with which the pouring completion position is associated as the output information.

[0031] The above-mentioned image information refers to moving images or still images of the construction area captured at a predetermined time interval. The characteristic of the tubular body refers to at least one of the shape, color, and movement.

[0032] With this configuration, pouring sections where compaction has been completed successfully can be sequentially mapped onto drawing data as pouring completion positions. As a result, the concrete pouring management system can manage the progress of pouring work without requiring users involved in the pouring work to input the completion position of pouring. Therefore, the concrete pouring management system can assist in managing the progress of pouring work while determining the compaction state of the concrete poured into the pouring area. Effect of the Invention

[0033] The present invention makes it possible to provide a concrete pouring management system and a concrete pouring management method that assist in managing the progress of concrete pouring work. [Brief description of the drawings]

[0034] [Figure 1] Schematic diagram of a concrete construction site. [Diagram 2]FIG. 1 is a diagram showing the configuration of a concrete pouring management system. [Diagram 3] FIG. 2 is a block diagram showing the internal configuration of a concrete pouring management system. [Figure 4] FIG. 2 is an explanatory diagram illustrating an outline of a compaction detection sensor. [Diagram 5] FIG. 13 is an explanatory diagram illustrating the communication state of the compaction detection sensor. [Figure 6] FIG. 2 is an explanatory diagram for explaining an outline of drawing data. [Figure 7] FIG. 1 is an explanatory diagram for explaining an outline of a learning model. [Figure 8] FIG. 1 is a sequence diagram showing the processing operation of a concrete pouring management system. [Figure 9] 11 is a flowchart showing the processing operation of progress management processing. [Figure 10] 11 is a flowchart showing the processing operation of a concrete pouring determination process. [Figure 11] FIG. 13 is an explanatory diagram illustrating an outline of a progress management screen. [Figure 12] An explanatory diagram outlining the concrete pouring completion section screen. [Figure 13] FIG. 13 is an explanatory diagram for explaining an outline of a detailed information screen. [Figure 14] FIG. 13 is an explanatory diagram illustrating an outline of a transmitter and a receiver according to another embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0035] An embodiment of the present invention will now be described with reference to the drawings. In this embodiment, a concrete pouring management system 10 that supports progress management of concrete pouring work will be described with reference to Figs. 1 to 7.

[0036] Note that Figure 1 shows a schematic diagram of a concrete construction site, Figure 2 shows a configuration diagram of the concrete pouring management system 10, Figure 3 shows a block diagram of the concrete pouring management system 10, and Figure 4 shows an explanatory diagram outlining the compaction detection sensor 40.

[0037] Furthermore, Figure 5 is an explanatory diagram explaining the communication state of the compaction detection sensor 40, where Figure 5(a) shows an explanatory diagram explaining the communication state in a state of insufficient compaction, and Figure 5(b) shows an explanatory diagram explaining the communication state in a normal compaction state.

[0038] In addition, Figure 6 shows an explanatory diagram outlining the drawing data 67, Figure 7 is an explanatory diagram outlining the learning models, Figure 7(a) shows an explanatory diagram outlining the first learning model 65, and Figure 7(b) shows an explanatory diagram outlining the second learning model 66.

[0039] First, as shown in FIG. 1, in the concrete pouring work, an agitator truck (not shown) transports fresh concrete (hereinafter referred to as concrete) to a construction site, and a concrete pump truck 1 pumps the transported concrete to the desired pouring location.

[0040] The concrete pump truck 1 pumps concrete through a tubular body (symbol omitted) consisting of a hose 3 extending from a boom 2 and a nozzle 4 that serves as a discharge outlet at the end of the hose 3.

[0041] At this time, among a plurality of workers M engaged in various tasks at the construction site, a nozzle worker M1 holds the nozzle 4 and moves it to pour concrete at a desired location. Furthermore, another worker M2 is proceeding with the pouring work while using a vibrator 5 to vibrate the concrete poured into the pouring area to compact it.

[0042] The concrete pouring management system 10, which supports progress management of such concrete pouring work, includes a camera 20, a wearable terminal 30, and a compaction detection sensor 40 arranged at the construction site, as well as a user terminal 50 and a server 60 arranged at a location away from the construction site, as shown in Figure 2.

[0043] First, the camera 20 is fixed in a state in which it can capture an image of a construction area where concrete is poured at a fixed point at a construction site, as shown in Fig. 1. The camera 20 is connected to a server 60 via a communication line 11.

[0044] 2, the wearable terminal 30 is a wristwatch-type terminal worn by a worker M at a construction site. The wearable terminal 30 is connected to a server 60 via a communication line 11.

[0045] As shown in Fig. 2, the compaction detection sensor 40 is composed of a transmitter 41 and a receiver 42, and the receiver 42 is connected to the server 60 via the communication line 11. The transmitter 41 is fixed to the vibrator 5 at the construction site (see Fig. 4).

[0046] 1 and 2, the user terminal 50 is a terminal located in, for example, a management office 6 away from the construction site, and is connected to the server 60 via a communication line 11. This user terminal 50 is used by a site manager who gives instructions to a worker M according to the progress of the concrete pouring work, for example.

[0047] In addition, as shown in Figure 2, the server 60 is placed, for example, in a remote location away from the construction site, and is communicatively connected to the camera 20, the wearable terminal 30, the compaction detection sensor 40, and the user terminal 50 via a communication line 11.

[0048] This server 60 has the function of transmitting and receiving various information between the camera 20, the wearable terminal 30, the compaction detection sensor 40, and the user terminal 50, as well as the function of processing various information to support pouring management.

[0049] In detail, as shown in FIG. 3, the camera 20 includes a camera body 21 that captures images of the construction site and acquires color moving images, a line connection unit 22 that wirelessly or wiredly connects the camera body 21 to the communication line 11, and a control unit (not shown) that controls the operation of these units.

[0050] This camera 20 is configured to be able to start and stop imaging based on a signal from server 60 via communication line 11, and is also configured to be able to output captured video images to server 60 via communication line 11.

[0051] As shown in FIG. 3, the wearable terminal 30 includes a line connection unit 31 that wirelessly connects to the communication line 11, a GNSS receiving unit 32, an acceleration sensor 33, and a memory unit and a control unit (not shown).

[0052] Specifically, the GNSS receiver 32 of the wearable terminal 30 has a function of receiving signals from a Global Navigation Satellite System and acquiring location information indicating the current location of the wearable terminal 30. Examples of global navigation satellite systems include the Global Positioning System and the quasi-zenith satellite system.

[0053] Meanwhile, the acceleration sensor 33 of the wearable device 30 has a function of measuring the acceleration of vibrations applied to the worker M or vibrations caused by the movements of the worker M, and a function of acquiring the measured acceleration as acceleration information.

[0054] When the wearable terminal 30 is powered on, it associates the position information and acceleration information with terminal identification information unique to each wearable terminal 30, and transmits the associated position information, acceleration information, and terminal identification information to the server 60 at predetermined time intervals.

[0055] As shown in FIG. 3, the compaction detection sensor 40 is composed of a transmitter 41 and a receiver 42 that wirelessly communicate at a frequency in the 2.4 GHz band used in short-range wireless communication standards and wireless LAN communication standards.

[0056] In addition, radio waves in the 2.4 GHz frequency band have the characteristic of being attenuated or absorbed by moisture depending on the amount of moisture. Specifically, as shown in FIG. 3, the transmitter 41 is a terminal to which a unique identifier 41a is assigned, and is configured to be capable of transmitting at least the identifier 41a at predetermined time intervals.

[0057] This transmitter 41 is detachably fixed near the tip of the vibrator 5 buried in concrete (see FIG. 4). For example, the transmitter 41 is packed in a waterproof packing material and fixed to the vibrator 5 using wire and waterproof adhesive tape.

[0058] On the other hand, the receiver 42 is fixed at an appropriate position around the construction area so as to be able to communicate with the transmitter 41, as shown in FIG.

[0059] This receiver 42 has at least the function of receiving the identifier 41a of the transmitter 41 at a predetermined time interval, the function of measuring the radio wave strength between the transmitter 41, and the function of transmitting identifier information indicating the identifier 41a and radio wave strength information indicating the radio wave strength to the server 60 via the communication line 11 at a predetermined time interval.

[0060] In the compaction detection sensor 40 having such a configuration, when the transmitter 41 is not buried in the concrete C, as shown in FIG. 4, a good communication state is established between the transmitter 41 and the receiver 42.

[0061] On the other hand, when concrete with a high moisture content is present between the transmitter 41 and the receiver 42, the compaction detection sensor 40 experiences a change in communication state because the radio wave strength is attenuated by the moisture contained in the concrete.

[0062] Specifically, when the concrete between the transmitter 41 and the receiver 42 is thin, the compaction detection sensor 40 establishes a communication state in which the radio wave strength between the transmitter 41 and the receiver 42 is reduced.

[0063] For example, as shown in Figure 5(a), when a gap S is formed around the transmitter 41 buried in the concrete C, or when the transmitter 41 is buried in a position close to the surface of the concrete C, the compaction detection sensor 40 establishes a communication state with reduced radio wave strength between the transmitter 41 and the receiver 42.

[0064] On the other hand, as shown in Figure 5 (b), when the transmitter 41 is completely covered by a sufficient thickness of concrete C, the radio waves of the compaction detection sensor 40 are absorbed by the moisture contained in the concrete C, and wireless communication between the transmitter 41 and the receiver 42 is blocked. Furthermore, if concrete C having a thickness sufficient to reliably absorb radio waves is interposed between the transmitter 41 and the receiver 42, wireless communication between the transmitter 41 and the receiver 42 will be blocked even if the transmitter 41 is not completely covered by the concrete C.

[0065] The user terminal 50 is a terminal that is operated by a user, such as a site manager, to register project data 64 (described later) and to check the progress of concrete pouring work.

[0066] As shown in FIG. 3, the user terminal 50 includes an operation reception unit 51 that receives various operations from the user, a display unit 52 that displays various information, a terminal memory unit 53 that stores various information, a line connection unit 54 that connects to the communication line 11, and a terminal control unit 55 that controls the operations of these units.

[0067] Specifically, the operation receiving unit 51 of the user terminal 50 is composed of, for example, a keyboard 51a and a mouse 51b, as shown in FIG. 2, and has a function of receiving input operations by the user and a function of outputting information indicating the received input content to the terminal control unit 55.

[0068] As shown in FIG. 2, the display unit 52 of the user terminal 50 is configured with, for example, a liquid crystal display, and has a function of displaying various information in response to a control signal from the terminal control unit 55.

[0069] The terminal storage unit 53 of the user terminal 50 is composed of a hard disk or a non-volatile memory, and has a function of writing and storing various information, and a function of reading out various information. The terminal storage unit 53 stores a client program (not shown) that cooperates with the server 60 to process various information.

[0070] The line connection unit 54 of the user terminal 50 is formed, for example, from a wired LAN board, and has a function of connecting to the communication line 11 and a function of transmitting and receiving various information via the communication line 11.

[0071] Furthermore, the terminal control unit 55 of the user terminal 50 is composed of hardware such as a CPU and a memory, and software such as a control program. This terminal control unit 55 has a processing function related to the exchange of various information with the server 60, a processing function related to the exchange of various signals with the operation reception unit 51, the display unit 52, the terminal memory unit 53 and the line connection unit 54, and a function to control the operation of each unit connected via a specified bus.

[0072] As shown in FIG. 3, the server 60 includes a line connection unit 61 that connects to the communication line 11, a server storage unit 62 that stores various information, and a server control unit 63 that controls the operations of these units.

[0073] Specifically, the line connection unit 61 of the server 60 is composed of, for example, a wired LAN board, and has a function of connecting to the communication line 11 and a function of transmitting and receiving various information via the communication line 11.

[0074] The server storage unit 62 of the server 60 is composed of a hard disk or a non-volatile memory, and has the function of writing and storing various information, and the function of reading out various information. The server storage unit 62 stores a server program (not shown) that cooperates with the user terminal 50 to process various types of information.

[0075] Furthermore, as shown in FIG. 3, the server memory unit 62 stores project data 64 set and registered for each construction site, a first learning model 65 that analyzes moving images to identify the nozzle 4 and the hose 3, and a second learning model 66 that analyzes moving images to identify the worker M.

[0076] More specifically, the project data 64 is a data group in which a plan view of the construction area, drawing data 67 consisting of a pouring section 67a, and various information indicating the planned start date and time of pouring, the planned end date and time of pouring, and the completion date and time of pouring for the completed pouring section 67b are associated with information indicating the project name.

[0077] Of these, the drawing data 67 is a plan view of the construction range E generated by arranging a plurality of pouring sections 67a of a predetermined size side by side as shown in Fig. 6. In this drawing data 67, among the plurality of pouring sections 67a, the pouring sections 67a in which pouring of concrete has been completed are illustrated in color as pouring completed sections 67b.

[0078] In addition, the first learning model 65 and the second learning model 66 are estimation algorithms using neural networks consisting of, for example, input layers 65a, 66a to which input information is input, intermediate layers 65b, 66b, and output layers 65c, 66c to which output information is output, as shown in Figure 7.

[0079] Of these, the first learning model 65 is constructed so that, as shown in Figure 7(a), a moving image acquired from the camera 20 is used as input information, and as output information in response to the input information, nozzle position information indicating the position coordinates of the nozzle 4 in the moving image, and hose position information indicating the position coordinates of the hose 3 in the moving image are obtained.

[0080] Such a first learning model 65 is constructed by repeatedly learning information indicating the characteristics of the nozzle 4 and information indicating the characteristics of the hose 3 as training data T1 for the input information. At this time, the first learning model 65 learns by repeatedly adjusting the weighting and the judgment threshold based on the teacher data T1 so that the output information for the input information becomes the nozzle position information and the hose position information.

[0081] The information indicating the characteristics of the nozzle 4 is information indicating the shape of the nozzle 4, the color of the nozzle 4, and the relative position and movement of the nozzle 4 during concrete pouring operations obtained in past concrete pouring operations. Furthermore, the information indicating the characteristics of the hose 3 is information indicating the shape of the hose 3, the color of the hose 3, and the relative position and movement of the hose 3 during concrete pouring operations obtained in past concrete pouring operations.

[0082] On the other hand, the second learning model 66 is constructed so that, as shown in Figure 7(b), input information is the moving image acquired from the camera 20 and the position information and acceleration information acquired from the wearable terminal 30, and worker position information indicating the position coordinates of worker M in the moving image is obtained as output information in response to the input information.

[0083] Such a second learning model 66 is constructed by repeatedly learning information indicating the characteristics of the worker M as training data T2 for the input information. At this time, the second learning model 66 learns by repeatedly adjusting the weighting and the judgment threshold based on the teacher data T2 so that the output information for the input information becomes worker position information.

[0084] The information indicating the characteristics of worker M is information indicating the shape of the marker attached to the helmet worn by worker M, the color of the marker, and the relative position and movement of worker M during concrete pouring work obtained from past concrete pouring work.

[0085] Further, the server control unit 63 of the server 60 is composed of hardware such as a CPU and a memory, and software such as a control program.

[0086] This server control unit 63 has processing functions related to the exchange of various information with the camera 20, wearable terminal 30, compaction detection sensor 40, and user terminal 50, processing functions related to the exchange of various signals with the line connection unit 61 and server memory unit 62, and a function to control the operation of each part connected via a specified bus.

[0087] Next, in the above-mentioned concrete pouring management system 10 in which the project data 64 is registered in advance, the processing operation of the server 60 when the current date and time becomes the scheduled pouring start date and time will be described with reference to Figs. 8 to 13.

[0088] FIG. 8 shows a sequence diagram of the processing operation of the concrete pouring management system 10, FIG. 9 shows a flowchart of the progress management process, and FIG. 10 shows a flowchart of the pouring determination process.

[0089] Furthermore, Figure 11 shows an explanatory diagram outlining the progress management screen 200, Figure 12 shows an explanatory diagram outlining the pouring completion section screen 210, and Figure 13 shows an explanatory diagram outlining the detailed information screen 220. In FIG. 8, in order to clarify the illustration, the user terminal 50 is omitted.

[0090] First, when the project data 64 is registered, the server control unit 63 determines whether or not the current date and time is the scheduled concrete pouring start date and time registered in the project data 64, as shown in FIG. 8 (step S101). At this time, the server control unit 63 compares the current time with a time that is a predetermined time earlier than the scheduled pouring start time registered in the project data 64.

[0091] If the current date and time is not the scheduled concrete pouring start date and time registered in the project data 64 (step S101: No), the server control unit 63 waits for processing until the current date and time becomes the scheduled concrete pouring start date and time.

[0092] On the other hand, if the current date and time is the scheduled concrete pouring start date and time registered in the project data 64 (step S101: Yes), the server control unit 63 starts a progress management process that supports progress management of the concrete pouring work (step S102).

[0093] After starting the progress management process, the server control unit 63 transmits an imaging signal for starting imaging of the construction site to the camera 20 via the communication line 11, as shown in FIG. 9 (step S111).

[0094] At this time, the camera 20 that has acquired the imaging signal transmits a moving image of the construction site to the server 60 via the communication line 11, as shown in FIG. 8 (step S103). The camera 20 continues capturing images of the construction site and transmitting the captured video images until it receives a signal from the server 60 instructing it to stop capturing images of the construction site.

[0095] Returning to step S111 in FIG. 9, when acquisition of moving images from the camera 20 begins, the server control unit 63 starts communication with the wearable terminal 30 (step S112) and acquires the position information and acceleration information transmitted by the wearable terminal 30.

[0096] As shown in FIG. 8, the position information and acceleration information are constantly transmitted from the wearable device 30 in a power-on state to the server 60 via the communication line 11 (step S104). As described above, the position information and acceleration information are associated with terminal identification information unique to each wearable terminal 30.

[0097] Returning to step S112 in Figure 9, when communication with the wearable terminal 30 is started, the server control unit 63 starts communication with the receiver 42 of the compaction detection sensor 40 (step S113) and acquires the identifier information and radio wave intensity information transmitted by the receiver 42.

[0098] At this time, the receiver 42, which is powered on, receives the identifier 41a transmitted from the transmitter 41, as shown in FIG. 8, and associates the identifier information indicating the received identifier 41a with radio wave strength information indicating the radio wave strength and transmits the associated information to the server 60 (step S105).

[0099] Returning to step S113 in FIG. 9, when communication with the receiver 42 is started, the server control unit 63 starts an image analysis process for identifying the nozzle 4 and the worker M in the video image by using a learning model (step S114).

[0100] At this time, as shown in Figure 9, the server control unit 63 performs in parallel a nozzle detection process (step S115) for identifying the nozzle 4 and the hose 3 using the first learning model 65, and a moving object detection process (step S116) for identifying the worker M using the second learning model 66.

[0101] Specifically, in the nozzle detection process (step S115 in FIG. 9), the server control unit 63 inputs the video image acquired from the camera 20 as input information to the input layer 65a of the first learning model 65 read from the server memory unit 62.

[0102] At this time, the first learning model 65 passes input information from the input layer 65a to the intermediate layer 65b, and from the intermediate layer 65b to the output layer 65c, while comparing the input information with pre-learned weights and thresholds to identify the nozzle 4 and the hose 3 in the moving image.

[0103] After that, the first learning model 65 outputs, as output information, nozzle position information indicating the position coordinates of the nozzle 4 and hose position information indicating the position coordinates of the hose 3 in the moving image (see FIG. 7(a)).

[0104] More specifically, the first learning model 65 identifies, as the nozzle 4 in the moving image, an object that is similar to at least one piece of information indicating the characteristics of the nozzle 4, which is also the training data T1, such as the shape of the nozzle 4, the color of the nozzle 4, or the movement of the nozzle 4 during pouring work.

[0105] At this time, the first learning model 65 identifies the nozzle 4 in the video image with a rectangular frame (not shown) of a predetermined size, and detects the position coordinates of the rectangular frame as nozzle position information indicating the position coordinates of the nozzle 4.

[0106] Furthermore, the first learning model 65 identifies, as the hose 3 in the video, an object that is similar to at least one piece of information indicating the characteristics of the hose 3, which is also the training data T1, such as the shape of the hose 3, the color of the hose 3, or the movement of the hose 3 during concrete pouring work.

[0107] At this time, the first learning model 65 identifies the hose 3 in the video image with a rectangular frame (not shown) of a predetermined size, and detects the position coordinates of the rectangular frame as hose position information indicating the position coordinates of the hose 3.

[0108] On the other hand, in the moving object detection process (step S116 in FIG. 9), the server control unit 63 inputs the moving images acquired from the camera 20 and the position information and acceleration information acquired from the wearable terminal 30 as input information to the input layer 66a of the second learning model 66 read from the server memory unit 62.

[0109] At this time, the second learning model 66 passes the input information from the input layer 66a to the intermediate layer 66b, and from the intermediate layer 66b to the output layer 66c, while comparing the input information with pre-learned weights and thresholds to identify the worker M in the video. After that, the second learning model 66 outputs the worker position information indicating the position coordinates of the worker M as output information (see FIG. 7(b)).

[0110] More specifically, the second learning model 66 identifies, as worker M, an object in the video that is similar to at least one piece of information indicating the characteristics of worker M, which is also the training data T2, such as the shape of the marker attached to the helmet worn by worker M, the color of the marker, and the movements of worker M during concrete pouring work.

[0111] Furthermore, the second learning model 66 corrects the identified position of the worker M based on at least one of the position information of the wearable terminal 30, the movement speed of the worker M calculated from the position information, and the staying time that the worker M stays in the location.

[0112] In addition, the second learning model 66 identifies the worker M2 holding the vibrator 5 from among the identified workers M, based on the acceleration information of the wearable device 30 associated with the position information.

[0113] At this time, the second learning model 66 identifies the worker M in the video image with a rectangular frame (not shown) of a predetermined size, and detects the position coordinates of the rectangular frame as worker position information indicating the position coordinates of the worker M. In addition, the multiple workers M in the video are individually identified by the second learning model 66.

[0114] When the image analysis process is completed, the server control unit 63 starts a correction process for correcting the nozzle position information acquired in the above-mentioned step S115 with the worker position information acquired in step S116 (step S117).

[0115] At this time, the server control unit 63 determines the average value of the position coordinates of the rectangular frame indicating the nozzle 4, the position coordinates of the rectangular frame indicating the hose 3, and the position coordinates of the rectangular frame indicating the worker M as the corrected position coordinates of the nozzle 4.

[0116] For example, if among multiple workers M, a worker M2 holding a vibrator 5 is located within a predetermined radius range centered on the nozzle 4 and the workers M are relatively densely packed together, the server control unit 63 corrects the position of the nozzle 4 indicated by the nozzle position information using the position of the worker M indicated by the worker position information and the position of the hose 3 indicated by the hose position information.

[0117] Alternatively, when the workers M are not crowded around the worker M2 holding the vibrator 5, the server control unit 63 corrects the position of the nozzle 4 indicated by the nozzle position information with the position of the hose 3 indicated by the hose position information.

[0118] Alternatively, when workers M are crowded around worker M2 holding vibrator 5 and only the position of nozzle 4 is detected, the server control unit 63 corrects the position of nozzle 4 indicated by the nozzle position information with the position of worker M indicated by the worker position information.

[0119] Furthermore, when only the position of the hose 3 is detected, or when the positions of both the nozzle 4 and the hose 3 cannot be detected, the server control unit 63 estimates the position of the nozzle 4 based on the position of the worker M indicated by multiple worker position information.

[0120] When the correction process is completed, the server control unit 63 starts a pouring determination process for determining completion of pouring of concrete in cooperation with the compaction detection sensor 40 as shown in FIG. 9 (step S118). It is preferable that the concrete pouring judgment process be performed in parallel with the image analysis process (step S114 in FIG. 9).

[0121] In detail, the server control unit 63, which has started the concrete pouring determination process, determines whether the acceleration indicated by the acceleration information obtained from the wearable terminal 30 of the worker M2 holding the vibrator 5 identified in the moving object detection process (step S116 in FIG. 9) is equal to or greater than an acceleration threshold indicating the acceleration when the vibrator 5 is operating, as shown in FIG. 10 (step S131).

[0122] If the acceleration indicated by the acceleration information is less than the acceleration threshold value (step S131: No), the server control unit 63 terminates the pouring determination process because the vibrator 5 is not operating, as shown in FIG. 10, and proceeds to step S119 in FIG. 9.

[0123] On the other hand, if the acceleration indicated by the acceleration information is equal to or greater than the acceleration threshold value (step S131: Yes), the server control unit 63 determines whether the radio wave strength indicated by the radio wave strength information acquired from the receiver 42 is less than the radio wave threshold value indicating the lower limit of radio wave strength in a good reception state with the transmitter 41, as shown in FIG. 10 (step S132).

[0124] If the radio wave strength indicated by the radio wave strength information acquired from the receiver 42 is equal to or greater than the radio wave threshold (step S132: No), the server control unit 63 terminates the pouring determination process because the vibrator 5 has not been inserted into the concrete, and proceeds to step S119 in Figure 9.

[0125] On the other hand, if the radio wave intensity indicated by the radio wave intensity information acquired from the receiver 42 is less than the radio wave threshold (step S132: Yes), the server control unit 63 determines that the vibrator 5 is inserted into the concrete, as shown in FIG. 10, and determines whether the compaction time is equal to or greater than the compaction judgment time indicating the time required for compaction, using the time during which the identifier information is not acquired as the compaction time (step S133). In other words, the server control unit 63 judges whether the time during which communication between the transmitter 41 and the receiver 42 is interrupted (compaction time) is equal to or longer than the compaction judgment time.

[0126] If the time during which communication was lost between the transmitter 41 and the receiver 42 (compaction time) is longer than or equal to the compaction judgment time (step S133: Yes), the server control unit 63 determines that compaction of the pouring section 67a has been performed normally (step S134).

[0127] Thereafter, the server control unit 63 starts a mapping process for mapping the nozzle position information acquired in step S117 of FIG. 9 onto the drawing data 67, as shown in FIG. 10 (step S135).

[0128] Specifically, the server control unit 63 converts the nozzle position information acquired in step S117 into position coordinates corresponding to the drawing data 67, and sets the converted position coordinates as pouring coordinate information indicating the position coordinates of the pouring position.

[0129] Furthermore, the server control unit 63 changes the pouring section 67a of the drawing data 67 corresponding to the pouring coordinate information to a pouring completed section 67b, and associates the pouring completed section 67b with the current time and stores it in the server memory unit 62.

[0130] At this time, the server control unit 63 associates the time when no identifier information was obtained from the receiver 42 with the pouring completion section 67b and stores it in the server memory unit 62, and proceeds to step S138.

[0131] Also, in step S133, if the time during which communication was lost between the transmitter 41 and the receiver 42 (compaction time) is less than the compaction judgment time (step S133: No), the server control unit 63 determines that the time spent on compaction is short and therefore compaction of the pouring section 67a is insufficient (step S136).

[0132] Thereafter, the server control unit 63 starts a compaction notification process for mapping the nozzle position information acquired in step S117 in FIG. 9 onto the drawing data 67 and notifying of insufficient compaction, as shown in FIG. 10 (step S137).

[0133] Specifically, the server control unit 63 converts the nozzle position information acquired in step S117 into position coordinates corresponding to the drawing data 67, and sets the converted position coordinates as pouring coordinate information indicating the position coordinates of the pouring position.

[0134] Furthermore, the server control unit 63 changes the pouring section 67a of the drawing data 67 corresponding to the pouring coordinate information to a compaction insufficient section 67c (see Figure 12) indicating insufficient compaction, and associates the current time with the compaction insufficient section 67c and stores it in the server memory unit 62.

[0135] At this time, the server control unit 63 stores the time when the identifier information was not acquired from the receiver 42 in the server storage unit 62 in association with the undercompaction section 67c, and proceeds to step S138.

[0136] After mapping the nozzle position information acquired in step S117 onto the drawing data 67, the server control unit 63 determines whether or not wireless communication between the transmitter 41 and the receiver 42 has been restored. Specifically, as shown in FIG. 10, the server control unit 63 acquires radio wave intensity information from the receiver 42, and determines whether the radio wave intensity indicated by the acquired radio wave intensity information is equal to or greater than the radio wave threshold (step S138).

[0137] If the radio wave strength indicated by the radio wave strength information is greater than or equal to the radio wave threshold (step S138: Yes), the server control unit 63 terminates the pouring determination process because the transmitter 41 has been pulled out of the concrete and is operating normally, and proceeds to step S119 in Figure 9.

[0138] On the other hand, if the radio wave strength indicated by the radio wave strength information is less than the radio wave threshold (step S138: No), the server control unit 63 determines whether the time during which the identifier information was not acquired at the time of step S138 (the time during which communication between the transmitter 41 and the receiver 42 was interrupted) has elapsed the failure determination time (step S139). The failure determination time is a time interval that is longer than the compaction determination time in step S133 described above and that takes into account the time required to pull out the transmitter 41 from the concrete.

[0139] If the time during which the identifier information has not been acquired has not elapsed the failure judgment time (step S139: No), the server control unit 63 may be in the process of pulling the transmitter 41 out of the concrete, so returns to step S138 and determines again whether the radio wave strength indicated by the radio wave strength information is equal to or greater than the radio wave threshold.

[0140] On the other hand, if the time during which identifier information has not been acquired has exceeded the failure determination time (step S139: Yes), the server control unit 63 generates and temporarily stores failure notification information indicating a failure of the transmitter 41 or the receiver 42, because the transmitter 41 pulled out of the concrete has failed or the receiver 42 has failed (step S140).

[0141] After that, the server control unit 63 ends the pouring determination process, and advances the process to step S119 in FIG. Returning to step S118 in FIG. 9, when the concrete pouring judgment process is completed, the server control unit 63 generates progress information indicating the progress of the concrete pouring work, as shown in FIG. 9 (step S119).

[0142] At this time, the server control unit 63 calculates the progress rate of the concrete pouring work, calculates the expected completion time of concrete pouring, and determines cold joints in parallel. Specifically, the server control unit 63 calculates the ratio of the number of pouring completed sections 67b to the total number of pouring sections 67a as the progress rate.

[0143] Furthermore, the server control unit 63 calculates the ratio of the number of completed pouring sections 67b to the time elapsed from the scheduled pouring start time as the pouring speed, and calculates the time when the pouring work is advanced to a progress rate of 100% while maintaining the calculated pouring speed as the expected pouring completion time.

[0144] Furthermore, as a cold joint determination, the server control unit 63 determines whether there is a concrete pouring completed section 67b that exceeds the allowable pouring time based on the concrete pouring time associated with the concrete pouring completed section 67b and the current time.

[0145] Then, if there is a pouring completed section 67b that exceeds the allowable pouring time, the server control unit 63 generates drawing data 67 that associates the pouring completed section 67b that exceeds the allowable pouring time with a warning section (not shown) of a different color than the pouring completed section 67b.

[0146] After generating the progress information, the server control unit 63 generates response information to be transmitted in response to a request from the user terminal 50, as shown in FIG. 9 (step S120). It should be noted that the server control unit 63 transmits the response information to the user terminal 50 via the communication line 11 every time the server control unit 63 is requested to transmit response information from the user terminal 50 .

[0147] Specifically, the server control unit 63 generates response information by associating the progress rate of the concrete pouring work and the expected completion time of the concrete pouring work calculated in step S119 with drawing data 67 including the concrete pouring completed area 67b, the compaction insufficient area 67c, and the warning area. When the malfunction notification information is temporarily stored in step S139 in FIG. 10, the server control unit 63 generates response information associated with the malfunction notification information.

[0148] After that, the server control unit 63 determines whether or not the current progress rate calculated in step S119 is 100% (step S121). If the current progress rate is not 100% (step S121: No), server control unit 63 repeats the processes from step S114 to step S121 at a predetermined time interval until the progress rate reaches 100%.

[0149] On the other hand, if the current progress rate is 100% (Step S121: Yes), the server control unit 63 terminates the progress management processing corresponding to the project name and sends a signal to the camera 20 via the communication line 11 indicating that imaging of the construction site will be stopped.

[0150] Next, an example of a screen that is displayed on the display unit 52 when a user, such as a site worker who checks the progress of the concrete pouring work after concrete pouring has started, operates the user terminal 50 will be described.

[0151] In addition, the user can select and press the name of a registered project by following the instructions on the menu screen (not shown) displayed on the display unit 52 of the user terminal 50 to display a screen for checking the progress of the concrete pouring work.

[0152] At this time, the terminal control unit 55 of the user terminal 50 transmits to the server 60 a video of the construction site and request information requesting transmission of response information, and obtains the video and the response information from the server 60 (see FIG. 8). Then, the terminal control unit 55 of the user terminal 50 that has acquired the video and the response information starts a display process for causing the display unit 52 to display the progress management screen 200.

[0153] As shown in FIG. 11, this progress management screen 200 displays the project name at the top of the screen, and below that are a pouring completion section button 201, a pouring completion forecast button 202, a pouring pace warning button 203, a cold joint warning button 204, and a back button 205 for returning to the menu screen.

[0154] Specifically, the pouring completed section button 201 is a button that the user presses when checking the drawing data 67 that illustrates the pouring completed section 67b and the insufficient compaction section 67c on a plan view of the construction area, and a video image of the construction site.

[0155] Further, the concrete pouring completion expected button 202 is a button that the user presses when checking the progress rate of the concrete pouring work, the expected time of completion of concrete pouring, and a video image of the construction site. In addition, the concrete pouring pace warning button 203 is a button that the user presses when checking the concrete pouring pace of the concrete pouring work and whether or not there is a delay in the concrete pouring pace. In addition, the cold joint warning button 204 is a button that the user presses when checking the pouring completion section 67b (warning section) where there is a possibility of a cold joint.

[0156] For example, when the pouring completion section button 201 is pressed, the terminal control unit 55 of the user terminal 50 displays the pouring completion section screen 210 on the display unit 52 based on the response information and video image obtained from the server 60, as shown in Figure 12.

[0157] As shown in FIG. 12, this casting completion section screen 210 displays the title "casting completion section" at the top of the screen, and below that on the left side is a drawing display field 211 that displays drawing data 67.

[0158] In addition, the drawing display field 211 displays drawing data 67 including the pouring completed section 67b changed in step S135 of the pouring judgment process described above, and the compaction insufficient section 67c changed in step S137.

[0159] Furthermore, on the concrete pouring completion section screen 210, a detailed information button 212 that displays detailed information for each concrete pouring section 67a is displayed below the drawing display field 211. In addition, on the pouring completion section screen 210, to the right of the drawing display field 211, there is displayed an image display field 213 that displays moving images of the construction site obtained via the server 60, and a back button 214 for returning to the progress management screen 200.

[0160] When the detailed information button 212 is pressed on this pouring completion section screen 210, the terminal control unit 55 of the user terminal 50 displays the detailed information screen 220 on the display unit 52 based on the response information obtained from the server 60, as shown in Figure 13.

[0161] As shown in FIG. 13, on this detailed information screen 220, a title "detailed information" is displayed at the top of the screen, and below that, a drawing display field 221 for displaying drawing data 67 is displayed.

[0162] Furthermore, on the detailed information screen 220, a detail display field 222 that displays detailed information for each pouring section 67a is displayed below the drawing display field 221, and a back button 223 for returning to the pouring completion section screen 210 is displayed on the right side of the detail display field 222.

[0163] In addition, the detailed display field 222 displays, for each casting section 67a, the pouring start time and pouring completion time, the compaction time calculated based on the time when no identifier information was obtained from the receiver 42, and the compaction status judgment result.

[0164] In this way, the concrete pouring management system 10 of this embodiment judges the compaction of the concrete and notifies site personnel, etc. of the insufficiently compacted pouring section 67a based on the judgment results of the insufficiently compacted section 67c displayed on the user terminal 50 and the detailed display field 222.

[0165] Furthermore, the concrete pouring management system 10 provides information indicating the progress of the pouring work to the user terminal 50 based on various information obtained from the camera 20, the wearable terminal 30, and the compaction detection sensor 40.

[0166] The concrete pouring management system 10 then enables the user to operate the user terminal 50 to check various information provided by the server 60, thereby assisting in the management of the progress of pouring work.

[0167] As described above, the concrete pouring management system 10 of this embodiment, which supports progress management of concrete pouring work, is equipped with a transmitter 41 that is placed in the pouring area 67a where concrete is poured and transmits a unique identifier 41a, and a receiver 42 that is placed outside the pouring area 67a and receives the identifier 41a of the transmitter 41.

[0168] In addition, the concrete pouring management system 10 is equipped with a determination means (server control unit 63) for determining the status of the transmitter 41 placed in the pouring section 67a, and an output means (server control unit 63) for outputting response information based on the determination result by the determination means.

[0169] Furthermore, the transmitter 41 and the receiver 42 are configured to wirelessly communicate using radio waves in a frequency band that is attenuated or absorbed by moisture as the moisture content increases. The determination means is configured to determine that the transmitter 41 arranged in the pouring section 67a is buried in concrete if the receiver 42, which is in a position to receive the identifier 41a of the transmitter 41, does not receive the identifier 41a.

[0170] In addition, the concrete pouring management method of this embodiment, which supports progress management of concrete pouring work, includes a transmission process (step S105) in which a transmitter 41 arranged in the pouring section 67a where concrete is poured transmits a unique identifier 41a to a receiver 42.

[0171] Furthermore, the concrete pouring management method includes a receiving process (step S105) in which a receiver 42 arranged outside the pouring section 67a receives the identifier 41a of the transmitter 41 using radio waves in a frequency band that is attenuated or absorbed by moisture as the moisture content increases.

[0172] Thereafter, the concrete pouring management method performs a determination process (step S132) in which, if the receiver 42, which is in a position to receive the identifier 41a of the transmitter 41, does not receive the identifier 41a, the determination means (server control unit 63) determines that the transmitter 41 placed in the pouring section 67a is buried in concrete.

[0173] The concrete pouring management method then performs an output step (step S120) in which the output means (server control unit 63) outputs response information based on the determination result from the determination step.

[0174] According to this configuration, the progress management of concrete pouring work can be assisted by cooperation between transmitter 41 and receiver 42, which communicate wirelessly using radio waves in a frequency band that is attenuated or absorbed by moisture as the moisture content increases.

[0175] Specifically, the receiver 42 receives the identifier 41a of the transmitter 41 using radio waves in a frequency band that is attenuated or absorbed by moisture the more moisture there is, so when no concrete is being poured in the pouring section 67a in which the transmitter 41 is located, the receiver 42 placed outside the pouring section 67a can receive the identifier 41a of the transmitter 41.

[0176] On the other hand, when concrete is poured in the pouring section 67a in which the transmitter 41 is located, the radio waves are significantly attenuated or absorbed by the moisture in the concrete, so that the receiver 42 located outside the pouring section 67a cannot receive the identifier 41a of the transmitter 41, or cannot stably receive the identifier 41a due to a significant decrease in radio wave strength.

[0177] Therefore, if the receiver 42 does not receive the identifier 41a of the transmitter 41, the concrete pouring management system 10 can determine that the transmitter 41 arranged in the pouring section 67a is buried in concrete. This allows the concrete pouring management system 10 to know the concrete pouring status.

[0178] More specifically, since the transmitter 41 placed in the pouring section 67a is fixed to the vibrator 5, the concrete pouring management system 10 can identify the state in which the transmitter 41 is buried in the concrete as indicating that compaction work is in progress.

[0179] Furthermore, by using an output means that outputs response information based on the judgment result by the judgment means, the concrete pouring management system 10 can, for example, inform a user who manages the progress of the pouring work of the concrete pouring status, thereby assisting in the progress management of the concrete pouring work.

[0180] Moreover, the transmitter 41 and the receiver 42 are configured to perform wireless communication at a frequency in the 2.4 GHz band. According to this configuration, existing devices that comply with the communication standard for short-range wireless communication using frequencies in the 2.4 GHz band or the communication standard for wireless LAN can be used as the transmitter 41 and the receiver 42.

[0181] Furthermore, since wireless signals in the 2.4 GHz frequency band are attenuated or absorbed by moisture in concrete, the concrete pouring management system 10 can assist in managing the progress of pouring work using existing equipment.

[0182] The transmitter 41 is fixed to a vibrator 5 that is inserted into and removed from the concrete poured in the concrete pouring section 67a. Furthermore, the concrete pouring management system 10 is equipped with a failure determination means (server control unit 63) that determines that there is a failure in the transmitter 41 or receiver 42 if the receiver 42 does not receive the identifier 41a of the transmitter 41 that has been pulled out of the buried concrete.

[0183] In addition, the concrete pouring management system 10 is equipped with an alarm means (display unit 52 of the user terminal 50) that alarms a malfunction of the transmitter 41 or receiver 42 when the malfunction determination means determines that the transmitter 41 or receiver 42 is malfunctioning.

[0184] According to this configuration, it is possible to easily notify the user of a failure of the transmitter 41 or the receiver 42. Therefore, the concrete pouring management system 10 can prevent the concrete pouring status from being erroneously determined due to a failed transmitter 41 or receiver 42. This enables the concrete pouring management system 10 to accurately assist in managing the progress of pouring work.

[0185] In addition, since the transmitter 41 is removably fixed to the vibrator 5 used for compacting the concrete, the concrete pouring management system 10 can determine the concrete compaction work based on the state of immersion of the transmitter 41 in the concrete.

[0186] This allows the concrete pouring management system 10 to manage the compaction of concrete. In addition, since the transmitter 41 is fixed to the vibrator 5 in a manner that allows it to be freely attached and detached, the concrete pouring management system 10 can use existing vibrators 5 and can easily replace or repair the transmitter 41.

[0187] In addition, the concrete pouring management system 10 is equipped with an acceleration sensor 33 that detects the vibration of the vibrator 5. The determination means (server control unit 63) is configured to determine that the state in which the transmitter 41 is embedded in the concrete is normal compaction when the acceleration sensor 33 detects vibration of the vibrator 5 and the receiver 42 has not received the identifier 41a for the compaction determination time.

[0188] According to this configuration, the time when the receiver 42 does not receive the identifier 41a can be regarded as the time when the concrete compaction work is being performed. Therefore, when the receiver 42 does not receive the identifier 41a for the compaction determination time, the concrete pouring management system 10 can determine that the concrete compaction has been performed normally.

[0189] As a result, the concrete pouring management system 10 can easily obtain the time spent on compaction and can accurately determine the compaction state, thereby enabling the compaction of concrete to be reliably managed.

[0190] Moreover, the output means (server control unit 63) is configured to output at least the time during which the receiver 42 has not received the identifier 41a in association with the response information. According to this configuration, the compaction time can be output in association with the compaction state, so that the compaction of concrete can be managed with greater precision.

[0191] In addition, the concrete pouring management system 10 is equipped with a server memory unit 62 that stores drawing data 67 showing a plan view of the construction area where concrete is to be poured, and a camera 20 that captures images of the construction area at fixed points and outputs the image information.

[0192] Furthermore, the concrete pouring management system 10 is equipped with a nozzle detection means (first learning model 65) that detects the position of the nozzle 4 in the image information based on the characteristics of the tubular body (hose 3 and nozzle 4) that transports the concrete.

[0193] Furthermore, the concrete pouring management system 10 is equipped with a coordinate conversion means (server control unit 63) that converts nozzle position information indicating the position of the nozzle 4 into pouring coordinate information indicating position coordinates in a plan view of the construction area.

[0194] In addition, the concrete pouring management system 10 is equipped with a mapping means (server control unit 63) that associates pouring coordinate information indicating the position of the nozzle 4 with the drawing data 67 as a pouring completion section 67b when the judgment result by the judgment means is that compaction is normal. The output means (server control unit 63) is configured to output the drawing data 67 associated with the pouring completion section 67b as response information.

[0195] According to this configuration, the pouring section 67a in which compaction has been normally completed can be sequentially mapped onto the drawing data 67 as the pouring completed section 67b. As a result, the concrete pouring management system 10 can manage the progress of the pouring work without requiring the user involved in the pouring work to input data into the pouring completion section 67b.

[0196] Therefore, the concrete pouring management system 10 can assist in managing the progress of pouring work while determining the compaction state of the concrete poured into the pouring section 67a.

[0197] In the configuration of the present invention and the correspondence with the above-mentioned embodiment, The determination means, output means, fault determination means, coordinate conversion means and mapping means of the present invention correspond to the server control unit 63 of the embodiment. Similarly, The transmission information corresponds to the identifier 41a, The output information corresponds to the response information, The component that is inserted into and removed from the concrete corresponds to the vibrator 5, The notification means corresponds to the display unit 52. The storage means corresponds to the server storage unit 62; The tubular body corresponds to the hose 3 and the nozzle 4. The nozzle detection means corresponds to the first learning model 65; The transmitting step and the receiving step correspond to step S105. The determination step corresponds to step S132. The output step corresponds to step S120. The present invention is not limited to the configurations of the above-described embodiments, and many other embodiments can be obtained.

[0198] For example, in the above-described embodiment, the camera 20 transmits moving images of the construction site to the server 60, but this is not limited to this, and the camera may also transmit still images of the construction site to the server 60 at a predetermined time interval.

[0199] In addition, although the camera 20 captures images of the construction site based on a signal from the server 60, this is not limited to this, and the camera may be one that constantly captures images of the construction site and transmits video images to the server 60 while the power is on.

[0200] In addition, although a wristwatch-type wearable terminal 30 has been described, this is not limited to this, and any suitable terminal that can be worn by worker M may be used, such as a terminal that can be attached to a belt on work clothes or a ring-type wearable terminal.

[0201] In addition, although the position information and acceleration information are acquired by the wearable device 30, this is not limiting, and the position information may be acquired by a GNSS receiver, and the acceleration information may be acquired by an acceleration sensor separate from the GNSS receiver.

[0202] In addition, the concrete pouring management system 10 is composed of a camera 20, a wearable terminal 30, a compaction detection sensor 40, a user terminal 50 and a server 60 connected via a communication line 11, but is not limited to this.

[0203] For example, the system may be a concrete pouring management system in which the camera 20, the wearable terminal 30, and the compaction detection sensor 40 are connected to the user terminal 50 by wire or wirelessly. In this case, the various processing operations performed by the server 60 are performed by the user terminal 50.

[0204] In addition, the server control unit 63 is used as a means for outputting the judgment result of the concrete filling state (compaction state) as output information, but this is not limited to this, and any appropriate configuration may be used as long as it is capable of outputting the judgment result as output information.

[0205] For example, the output means may be the server storage unit 62 that stores the determination result as response information, the display unit 52 of the user terminal 50 that displays the response information, or a printer (not shown) that prints the response information.

[0206] In addition, when the compaction of the concrete is normal, the pouring section 67a is changed to the pouring completion section 67b based on the nozzle position information indicating the position of the nozzle 4, but the above-mentioned embodiment is one example and is not limited to this.

[0207] For example, in a transmitter that transmits location information in addition to the identifier 41a, if communication with the transmitter 41 is interrupted for longer than the compaction judgment time, the server control unit 63 may be configured to change the pouring section 67a indicated by the transmitter's location information acquired immediately before communication was interrupted to the pouring completion section 67b.

[0208] In addition, the transmitter 41 is arranged in the pouring section 67a where concrete is poured, and the receiver 42 is arranged outside the pouring section 67a, but this is not limited to this, and the receiver 42 may be arranged in the pouring section 67a and the transmitter 41 may be arranged outside the pouring section 67a. More specifically, the receiver 42 may be fixed to the vibrator 5, and the transmitter 41 may be fixed to an appropriate position outside the casting section 67a so as to be able to communicate with the receiver 42.

[0209] In addition, although the compaction detection sensor 40 has been described as working in cooperation with the server 60, this is not limited to this, and the compaction detection sensor 40 may operate alone, with the receiver 42 alerting the worker to normal compaction by issuing an alarm, sounding, or lighting up.

[0210] In addition, the transmitter 41 and the receiver 42 have been described as a compaction detection sensor 40 for determining the compaction of concrete, but this is not limited to this and may be of any suitable configuration as long as it functions as a sensor for detecting the filling state of concrete poured into the pouring section.

[0211] For example, as shown in FIG. 14 which illustrates an explanatory diagram of a transmitter 71 and a receiver 72 in another embodiment, a plurality of transmitters 71 and one receiver 72 may be used as a sensor for detecting the pouring height of concrete C.

[0212] 14, the transmitters 71 are arranged and fixed at a predetermined interval to posts 8 erected inside the formwork 7. The receiver 72 is configured to be able to identify the transmitters 71 based on the identifier. At this time, the receiver 72 may report the pouring height of the concrete C or notify a terminal connected to the receiver 72 every time the receiver 72 detects a transmitter 71 from which communication has been cut off.

[0213] According to this configuration, the position of the transmitter 71 buried in the concrete can be determined as the pouring height of the concrete poured into the formwork 7, so that the concrete pouring status can be monitored, for example, from a remote location.

[0214] In addition, in step S133 of Figure 10, if the compaction time during which communication was lost between the transmitter 41 and the receiver 42 is equal to or longer than the compaction judgment time, it is judged to be normal compaction, but this is not limited to this, and the compaction state may also be judged based on the radio wave intensity.

[0215] For example, a threshold may be set to a radio wave intensity at which the identifier 41a cannot stably receive radio waves or at which the reliability of communication cannot be ensured, and the current radio wave intensity may be determined to be equal to or lower than the threshold. Furthermore, the current radio wave intensity may be determined to be equal to or lower than the threshold and the time that the current radio wave intensity is equal to or lower than the threshold may be determined to be equal to or higher than a predetermined time.

[0216] In addition, in step S139 of FIG. 10, it is determined whether the time during which identifier information has not been acquired has exceeded the fault judgment time, but this is not limited to this, and it may be determined, for example, whether the time elapsed since completion of the mapping process in step S135 or the compaction notification process in step S137 has exceeded the fault judgment time. In this case, the failure determination time may be the same as or different from the failure determination time in step S139.

[0217] Furthermore, the transmitter 41 and the receiver 42 are not limited to the above-described embodiment, and may be an RFID consisting of an RF tag as a transmitter and a reader as a receiver. In this case, the RF tag may be any of a passive tag, an active tag, and a semi-active tag.

[0218] For example, if the RF tag is a passive tag, the reader's radio waves are attenuated or absorbed by the concrete poured into the casting area, so the RF tag placed inside the casting area does not emit radio waves. Therefore, if a reader that is in a position to receive radio waves from an RF tag does not receive the radio waves from the RF tag, it can be determined that the RF tag placed in the casting area is buried in concrete.

[0219] Although the transmitter 41 and the receiver 42 are configured to wirelessly communicate at a frequency in the 2.4 GHz band, the present invention is not limited to this, and may be configured to wirelessly communicate at any suitable frequency as long as the frequency is attenuated as the moisture content increases or absorbed by moisture. For example, the transmitter 41 and the receiver 42 may be configured to wirelessly communicate at a frequency in the 1 GHz to 200 GHz band. [Explanation of symbols]

[0220] 3…Hose 4...Tip tip 5. Vibrator 10...Concrete pouring management system 20…Camera 33…Accelerometer 41...Transmitter 41a…Identifier 42…Receiver 52...Display section 62…Server memory section 63...Server control unit 65…First Learning Model 67...Drawing data 67a...Pouring area 67b…Complete pouring section

Claims

1. A concrete pouring management system that supports progress management of concrete pouring work, A transmitter and a receiver, one of which is disposed in a pouring section where the concrete is poured, and the other of which is disposed outside the pouring section; A determination means for determining the state of the transmitter or the receiver arranged in the casting section; an output unit that outputs output information based on a result of the determination by the determination unit, The transmitter and the receiver include: The wireless communication is performed using radio waves in a frequency band that is attenuated or absorbed by moisture as the moisture content increases, The determination means is When the receiver, which is in a state of receiving the transmission information of the transmitter, does not receive the transmission information, it is determined that the transmitter or the receiver arranged in the concrete pouring section is buried in the concrete. Concrete pouring management system.

2. The transmitter and the receiver are configured to wirelessly communicate at a frequency in the 2.4 GHz band. The concrete pouring management system according to claim 1.

3. The transmitter includes: The structure is fixed to a member that is inserted into and removed from the concrete poured into the casting section, a failure determination means for determining that the transmitter or the receiver is malfunctioning when the receiver does not receive the transmission information from the transmitter that has been pulled out from the buried concrete; and a notification means for notifying a failure of the transmitter or the receiver when the failure determination means determines that the transmitter or the receiver is malfunctioning. The concrete pouring management system according to claim 1.

4. The transmitter includes: A vibrator used for compacting the concrete is detachably fixed to the vibrator. The concrete pouring management system according to claim 1.

5. An acceleration sensor is provided to detect the vibration of the vibrator, The determination means is When the acceleration sensor detects the vibration of the vibrator and the receiver does not receive the transmission information for a predetermined period of time, the transmitter is determined to be embedded in the concrete as being normally compacted. The concrete pouring management system according to claim 4.

6. The output means includes: The configuration is such that at least the time when the receiver is not receiving the transmission information is associated with the output information and output. The concrete pouring management system according to claim 4.

7. A storage means for storing drawing data showing a plan view of a construction area in which the concrete is poured; A camera that captures an image of the construction range at a fixed point and outputs image information; a tube tip detection means for detecting a position of the tube tip of the tubular body in the image information based on characteristics of the tubular body transporting the concrete; A coordinate conversion means for converting nozzle position information indicating the position of the nozzle into pouring coordinate information indicating position coordinates in the plan view of the construction range; When the judgment result by the judgment means is that the compaction is normal, a mapping means is provided for associating the pouring coordinate information indicating the position of the nozzle tip with the drawing data as a pouring completion position, The output means includes: The drawing data associated with the pouring completion position is output as the output information. A concrete pouring management system according to any one of claims 1 to 6.

8. A concrete pouring management method for supporting progress management of concrete pouring work, comprising: A transmitting step in which a transmitter arranged in one of a pouring section where the concrete is poured or the outside of the pouring section transmits transmission information to a receiver arranged in the other section; a receiving step in which the receiver receives the transmitted information from the transmitter using radio waves in a frequency band that is attenuated or absorbed by moisture as the moisture content increases; A determination step in which, when the receiver, which is in a state of receiving the transmission information of the transmitter, does not receive the transmission information, the determination means determines that the transmitter or the receiver arranged in the casting section is buried in the concrete; An output step is performed in which an output means outputs output information based on the determination result in the determination step. How to manage concrete pouring.

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