Concrete placing management device, and concrete placing management method

Abstract

To provide a concrete placing management device capable of creating concrete placing information with high accuracy throughout the entire concrete placing area.SOLUTION: A concrete placing management device 1 comprises: a GNSS receiver 10 and a terminal device 20 attached to a worker H; beacon transmitters 30A to 30D arranged around a concrete placing area A; and a management terminal device 40. The terminal device 20 is capable of detecting position information of the GNSS receiver 10 and receiving a beacon signal. When the number of satellites captured by the GNSS receiver 10 is equal to or greater than a reference number, the management terminal device 40 displays concrete placing information on a display portion 42 based on the position information of the GNSS receiver 10, and when the number of satellites captured by the GNSS receiver 10 is less than the reference number, the management terminal device 40 displays concrete placing information on the display portion 42 based on identification information of the beacon transmitters 30A to 30D.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a concrete pouring management device and a concrete pouring management method. [Background technology]

[0002] In the construction of a concrete structure, a worker holds a concrete discharge cylinder attached to the end of a concrete supply hose and pours concrete from the concrete discharge cylinder into a concrete pouring area, while another worker holds a vibrator and inserts the vibrating part of the vibrator into the concrete in the concrete pouring area to compact the concrete. Conventionally, one method for managing concrete pouring is to attach a GNSS receiver to a vibrator and display the compaction status of the concrete on the display unit of a management terminal device based on the vibrator's position information and operating time (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 5998817 Summary of the Invention [Problem to be solved by the invention]

[0004] The above-mentioned concrete pouring management method has a problem in that when the number of satellites captured by the GNSS receiver decreases due to the influence of existing structures and retaining steel materials inside and outside the concrete pouring area, it becomes difficult to detect the vibrator's position information. The present invention aims to solve the above-mentioned problems and provide a concrete pouring management device and a concrete pouring management method that can accurately create concrete pouring information throughout the entire concrete pouring area and accurately manage concrete pouring. [Means for solving the problem]

[0005] In order to solve the above problem, the first invention is a concrete pouring management device, comprising a GNSS receiver and a terminal device attached to a worker holding a concrete discharge cylinder or a vibrator, beacon transmitters arranged around a concrete pouring area, and a management terminal device having a display unit that displays concrete pouring information within the concrete pouring area. The terminal device detects position information of the GNSS receiver based on satellite signals received by the GNSS receiver, and can receive beacon signals transmitted by the beacon transmitters. When the number of satellites captured by the GNSS receiver is equal to or greater than a reference number, the management terminal device displays the concrete pouring information on the display unit based on the position information of the GNSS receiver, and when the number of satellites captured by the GNSS receiver is less than the reference number, displays the concrete pouring information on the display unit based on identification information of the beacon transmitter that transmits the beacon signal received by the terminal device.

[0006] In order to solve the above-mentioned problem, a second invention is a concrete pouring management method, comprising the steps of placing beacon transmitters around a concrete pouring area and attaching a GNSS receiver and a terminal device that receives beacon signals to a worker holding a concrete discharge cylinder or vibrator placed within the concrete pouring area; and, if the number of satellites captured by the GNSS receiver is equal to or greater than a reference number, displaying concrete pouring information within the concrete pouring area on a display unit of the management terminal device based on position information of the GNSS receiver, and, if the number of satellites captured by the GNSS receiver is less than the reference number, displaying the concrete pouring information on the display unit based on identification information of the beacon transmitter that is emitting the beacon signal received by the terminal device.

[0007] In the present invention, when the number of satellites captured by the GNSS receiver is sufficient to create position information, concrete pouring information is created based on the position information by GNSS. Also, in the present invention, when the number of satellites captured by the GNSS receiver is insufficient to create position information, the position of the worker is detected based on the position information of the beacon transmitter to create concrete pouring information. In this way, in the present invention, when a worker moves into an area where the accuracy of position detection using GNSS decreases, position detection is switched to using beacon signals, making it possible to create accurate concrete pouring information for the entire concrete pouring area. In addition, concrete pouring information can be obtained by detecting the position information of the concrete discharge cylinder or vibrator based on the position information of the GNSS receiver, and adding the operating time of the concrete pump or vibrator to that position information, thereby showing the progress of concrete pouring.

[0008] In the above-mentioned concrete pouring management device, when multiple beacon transmitters are placed around the concrete pouring area, the management terminal device displays the concrete pouring information on the display unit based on the identification information of the beacon transmitter that is emitting the beacon signal with the greatest radio wave strength among the multiple beacon signals received by the terminal device. With this configuration, the beacon transmitter closest to the worker is detected based on the radio wave strength of the beacon signal, so that the worker's position can be detected by the beacon transmitter even if multiple beacon transmitters are placed around the concrete pouring area.

[0009] In the above-described concrete pouring management device, it is preferable that the management terminal device divides the concrete pouring area into a grid and displays it on the display unit, and displays the concrete pouring information for each square of the grid. In this way, concrete pouring information within the concrete pouring area can be obtained in detail.

[0010] In the above-mentioned concrete pouring management device, it is preferable that the GNSS receiver is attached to each of the worker's shoulders, and the management terminal device detects the position and orientation of the worker from the position information of the two GNSS receivers, and detects the position information of the concrete discharge cylinder or the vibrator based on the detection results. In this way, by detecting the position information of the concrete discharge cylinder or the vibrator, concrete pouring information can be created with high accuracy. Effect of the Invention

[0011] The concrete pouring management device and concrete pouring management method of the present invention can switch between position detection using GNSS and position detection using beacon signals depending on the number of satellites captured by the GNSS receiver, thereby making it possible to create accurate concrete pouring information for the entire concrete pouring area, thereby enabling accurate management of concrete pouring. [Brief description of the drawings]

[0012] [Figure 1] FIG. 1 is a perspective view showing a concrete pouring management device according to an embodiment of the present invention. [Diagram 2] 1 is a block diagram showing a concrete pouring management device according to an embodiment of the present invention. [Diagram 3] 1 is a diagram showing a display unit of a concrete pouring management device according to an embodiment of the present invention. FIG. [Figure 4] 1 is a plan view showing a state in which the number of satellites captured by a GNSS receiver is equal to or greater than a reference number in a concrete pouring management device according to an embodiment of the present invention. FIG. [Diagram 5] 1 is a plan view showing a state in which the number of satellites captured by a GNSS receiver is less than a reference number in a concrete pouring management device according to an embodiment of the present invention. FIG. [Figure 6] 1 is a flowchart showing a concrete pouring management method according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a perspective view showing a concrete pouring management device according to an embodiment of the present invention. As shown in FIG. 1, a concrete pouring management device 1 of this embodiment is used when pouring concrete in the construction of a concrete structure. When pouring concrete into concrete pouring area A, worker H holds the concrete discharge cylinder 2 attached to the tip of the concrete supply hose 2a, and pours concrete from the concrete discharge cylinder 2 into the concrete pouring area A. Another worker H holds a vibrator 3 and inserts the vibration part of the vibrator 3 into the concrete in the concrete pouring area A to compact the concrete.

[0014] FIG. 2 is a block diagram showing a concrete pouring management device according to an embodiment of the present invention. The concrete pouring management device 1 of this embodiment includes a GNSS receiver 10 and a terminal device 20 attached to a worker H, a plurality of beacon transmitters 30A to 30D arranged around the concrete pouring area A, and a management terminal device 40 (see Figure 2). The GNSS receiver 10 is a receiver used for position detection by the Global Navigation Satellite System (GNSS). The GNSS receiver 10 has an antenna for receiving satellite signals from a plurality of artificial satellites. In this embodiment, the GNSS receiver 10 is attached to each of the shoulders of the worker H, and each of the GNSS receivers 10 has unique identification information.

[0015] FIG. 4 is a plan view showing a state in which the number of satellites captured by the GNSS receiver is equal to or greater than a reference number in the concrete pouring management device according to the embodiment of the present invention. The beacon transmitters 30A to 30D transmit a beacon signal at predetermined time intervals. The beacon signal includes identification information for identifying the beacon transmitter 30A to 30D that transmitted the beacon signal. 4, in this embodiment, the beacon transmitters 30A to 30D are arranged outside the four corners of the concrete pouring area A. The four corners of the concrete pouring area A are areas where the number of satellites captured by the GNSS receiver 10 is reduced due to the influence of members such as retaining steel materials and struts.

[0016] The terminal device 20 is a portable terminal such as a smartphone or a tablet, and is carried by the worker H. A calculation unit 21 of the terminal device 20 acquires satellite signals received by the GNSS receiver 10 and detects position information of the GNSS receiver 10. The terminal device 20 also receives the beacon signals transmitted by the beacon transmitters 30A to 30D. Furthermore, the calculation unit 21 of the terminal device 20 detects the beacon signal with the maximum radio wave intensity from among the multiple received beacon signals, and detects the identification information of the beacon transmitters 30A to 30D that transmit the beacon signal.

[0017] 2 is a computer equipped with a CPU, RAM, ROM, a display unit 42, etc. Each process of the management terminal device 40 is realized by the CPU executing a program stored in the ROM, etc. The display unit 42 is a display that displays concrete pouring information. The calculation unit 41 of the management terminal device 40 acquires position information from the GNSS receiver 10, and determines whether or not the number of satellites used to detect the position information is equal to or greater than a preset reference number.

[0018] When the number of satellites captured by the GNSS receiver 10 is equal to or greater than the reference number and is sufficient to create position information of the GNSS receiver 10, the calculation unit 41 detects the orientation of the worker H based on the identification numbers of the two GNSS receivers 10, 10 attached to both shoulders of the worker H. The calculation unit 41 also detects position information of the concrete discharge cylinder 2 or the vibrator 3 based on the positional relationship between both shoulders of the worker H and the concrete discharge cylinder 2 or the vibrator 3. The positional relationship between both shoulders of the worker H and the concrete discharge cylinder 2 or the vibrator 3 is stored in advance in the memory unit of the management terminal device 40.

[0019] In addition, the management terminal device 40 acquires the operating times of the concrete pump and the vibrator 3, and creates concrete pouring information showing the progress of concrete pouring by adding the operating times of the concrete pump and the vibrator 3 to the position information of the concrete discharge cylinder 2 or the vibrator 3.

[0020] When the number of satellites captured by the GNSS receiver 10 is less than the reference number and is insufficient to generate the position information of the GNSS receiver 10, the management terminal device 40 generates concrete pouring information based on the identification information of the beacon transmitter 30A-30D that is transmitting the beacon signal with the highest radio wave strength. At this time, the worker H is located near the beacon transmitter 30A-30D that is transmitting the beacon signal with the highest radio wave strength. The calculation unit 41 of the management terminal device 40 detects the identification information included in the beacon signal with the maximum radio wave intensity. The storage unit of the management terminal device 40 stores location information corresponding to each of the beacon transmitters 30A to 30D for each identification information. The location information corresponding to the beacon transmitters 30A to 30D may be the location coordinates of the beacon transmitters 30A to 30D themselves, or may be the location coordinates of an area in the concrete pouring area A away from the beacon transmitters 30A to 30D. Then, the calculation unit 41 detects the beacon transmitters 30A to 30D that are closest to the worker H based on the identification information of the beacon signals, and obtains the position information corresponding to the beacon transmitters 30A to 30D. In this manner, the calculation unit 41 estimates the position information of the worker H based on the position information corresponding to the beacon transmitters 30A to 30D. The calculation unit 41 may calculate the distance from the beacon transmitters 30A to 30D to the worker H based on the radio wave intensity of the beacon signal. In this case, the calculation unit 41 estimates the position information of the worker H based on the position information corresponding to the beacon transmitters 30A to 30D and the radio wave intensity of the beacon signal.

[0021] Furthermore, the calculation unit 41 of the management terminal device 40 detects the operation times of the concrete pump and the vibrator 3, and adds the operation times of the concrete pump and the vibrator 3 to the position information of the worker H to create concrete pouring information.

[0022] FIG. 3 is a diagram showing a display unit of the concrete pouring management device according to the embodiment of the present invention. 3, the calculation unit 41 of the management terminal device 40 divides the concrete pouring area A into a grid and displays it on the display unit 42, and displays the concrete pouring information corresponding to each square of the grid. For example, in the concrete pouring information, squares where concrete pouring has been completed are displayed in a dark color.

[0023] Next, a concrete pouring control method using the above-mentioned concrete pouring control device 1 will be described. FIG. 6 is a flowchart showing a concrete pouring management method according to an embodiment of the present invention, and in the following description, the flowchart in FIG. 6 will be referred to as appropriate. First, as shown in FIG. 4, beacon transmitters 30A to 30D are placed at the four corners of a concrete pouring area A, respectively, and a GNSS receiver 10 and a terminal device 20 are attached to a worker H.

[0024] The GNSS receiver 10 constantly receives satellite signals (step S11). The terminal device 20 acquires the satellite signals received by the GNSS receiver 10 and detects the position information of the GNSS receiver 10 based on the satellite signals (step S12). The terminal device 20 then determines whether the number of satellites captured by the GNSS receiver 10 is equal to or greater than a reference number (step S13). The terminal device 20 constantly receives beacon signals (step S21). The terminal device 20 detects the beacon signal with the highest radio wave intensity among the multiple beacon signals it receives (step S22). Furthermore, the terminal device 20 detects identification information included in the beacon signal with the highest radio wave intensity (step S23).

[0025] If the terminal device 20 determines that the number of satellites captured by the GNSS receiver 10 is equal to or greater than the reference number (YES in step S13, state in Figure 4), the management terminal device 40 acquires the location information of the GNSS receiver 10 from the terminal device 20. Furthermore, the management terminal device 40 detects the position information of the concrete discharge cylinder 2 or the vibrator 3 based on the position information of the GNSS receiver 10 (step S14). The management terminal device 40 generates concrete pouring information by adding the operating times of the concrete pump and the vibrator 3 to the position information of the concrete discharge cylinder 2 or the vibrator 3, and displays the concrete pouring information on the display unit 42 (step S15).

[0026] FIG. 5 is a plan view showing a state in which the number of satellites captured by the GNSS receiver is less than a reference number in the concrete pouring management device according to the embodiment of the present invention. If the terminal device 20 determines that the number of satellites captured by the GNSS receiver 10 is less than the reference number (NO in step S13, state in Figure 5), the management terminal device 40 obtains from the terminal device 20 the identification information of the beacon signal with the maximum radio wave strength. The calculation unit 41 of the management terminal device 40 identifies the beacon transmitter 30A-30D that is transmitting the beacon signal with the maximum radio wave intensity based on the identification information of the beacon signal, and extracts the position information previously associated with the beacon transmitter 30A-30D from a storage unit (not shown) of the management terminal device 40. Then, the calculation unit 41 creates the position information of the worker H based on the position information corresponding to the beacon transmitters 30A-30D (step S24). In this embodiment, the "location information corresponding to the beacon transmitters 30A to 30D" is associated with at least one square displayed on the display unit 42. For example, the beacon transmitter 30A is associated with three squares 4a in FIG. 3. Similarly, the beacon transmitters 30B, 30C, and 30D are associated with three squares 4b, 4c, and 4d in FIG. 3, respectively. The squares 4a to 4d correspond to areas where the number of satellites captured by the GNSS receiver 10 is less than a reference number. The squares (location information) corresponding to each of the beacon transmitters 30A to 30D are determined before concrete is poured. The position and number of the corresponding squares may be changed based on the radio wave intensity of the beacon signal.

[0027] The management terminal device 40 creates concrete pouring information by adding the operating times of the concrete pump and the vibrator 3 to the position information of the worker H, and displays the concrete pouring information on the display unit 42 (step S25). That is, when the number of satellites captured by the GNSS receiver 10 is less than the reference number, it is assumed that the worker H is working in a square corresponding to the beacon transmitter 30A-30D that is emitting a beacon signal with the maximum radio wave strength, and the concrete pouring information is displayed in that square.

[0028] In the concrete pouring management device 1 and concrete pouring management method described above, the position is usually detected with high accuracy by GNSS, as shown in Fig. 4. Then, when the worker H moves to an area where the accuracy of position detection by GNSS decreases, position detection is switched to beacon signals, as shown in Fig. 5. This makes it possible to create concrete pouring information with high accuracy over the entire concrete pouring area A, thereby enabling concrete pouring to be appropriately managed. In addition, in the concrete pouring management device 1 of this embodiment, as shown in Figure 1, the position information of the concrete discharge cylinder 2 or the vibrator 3 is detected based on the position information of the GNSS receiver 10 attached to both shoulders of the worker H, so that concrete pouring information can be created with high accuracy. Furthermore, in the concrete pouring management device 1 of this embodiment, as shown in Figure 3, the display unit 42 of the management terminal device 40 displays concrete pouring information by dividing the concrete pouring area A into a grid, so that the concrete pouring information can be grasped in detail.

[0029] In the concrete pouring management device 1 of this embodiment, the beacon transmitter 30A-30D closest to the worker H is detected based on the radio wave strength of the beacon signal, so that even if multiple beacon transmitters 30A-30D are placed around the concrete pouring area A, the position of the worker H can be detected from the beacon transmitters 30A-30D.

[0030] Although the embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and can be appropriately modified without departing from the spirit of the present invention. In the concrete pouring management device 1 of this embodiment, as shown in FIG. 1, a GNSS receiver 10 is attached to each shoulder of a worker H, but a single GNSS receiver 10 may be attached to the worker H. In the concrete pouring management device 1 of this embodiment, concrete pouring information is created by adding the operating times of the concrete pump and vibrator 3 to the position information of the concrete discharge cylinder 2 or the vibrator 3 and the position information of the worker H, but concrete pouring information may also be created using position information alone. [Explanation of symbols]

[0031] 1. Concrete pouring management device 2 Concrete discharge cylinder 2a Concrete supply hose 3. Vibrator 10 GNSS receiver 20 Terminal Equipment 21 Arithmetic section 30A~30D Beacon transmitter 40 Management terminal 41 Arithmetic section 42 Display section A Concrete pouring area H worker

Claims

1. A GNSS receiver and a terminal device attached to a worker holding a concrete discharge cylinder or a vibrator; A beacon transmitter disposed around a concrete pouring area; A management terminal device having a display unit that displays concrete pouring information in the concrete pouring area, The terminal device The GNSS receiver detects position information of the GNSS receiver based on a satellite signal received by the GNSS receiver, and is capable of receiving a beacon signal transmitted by the beacon transmitter; The management terminal device When the number of satellites captured by the GNSS receiver is equal to or greater than a reference number, The concrete pouring information is displayed on the display unit based on the position information of the GNSS receiver, If the number of satellites captured by the GNSS receiver is less than the reference number, A concrete pouring management device characterized in that the concrete pouring information is displayed on the display unit based on the identification information of the beacon transmitter that is emitting the beacon signal received by the terminal device.

2. A plurality of the beacon transmitters are arranged around the concrete pouring area, The management terminal device The concrete pouring management device described in claim 1, characterized in that the concrete pouring information is displayed on the display unit based on the identification information of the beacon transmitter that emits the beacon signal with the greatest radio wave strength among the multiple beacon signals received by the terminal device.

3. The management terminal device The concrete pouring management device according to claim 1, characterized in that the concrete pouring area is divided into a grid and displayed on the display unit, and the concrete pouring information is displayed for each square of the grid.

4. The GNSS receiver is attached to each of the worker's shoulders, The management terminal device The concrete pouring management device described in claim 1, characterized in that the position and orientation of the worker are detected from the position information of both GNSS receivers, and the position information of the concrete discharge cylinder or the vibrator is detected based on the detection result.

5. A step of disposing beacon transmitters around a concrete pouring area and attaching a GNSS receiver and a terminal device for receiving beacon signals to a worker holding a concrete discharge cylinder or a vibrator disposed within the concrete pouring area; When the number of satellites captured by the GNSS receiver is equal to or greater than a reference number, concrete pouring information within the concrete pouring area is displayed on a display unit of a management terminal device based on position information of the GNSS receiver; When the number of satellites captured by the GNSS receiver is less than the reference number, the concrete pouring information is displayed on the display unit based on identification information of the beacon transmitter that transmits the beacon signal received by the terminal device. A concrete pouring management method comprising:

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