Concrete pouring management system

Abstract

To provide a concrete placing management system capable of reducing a labor cost, improving the reliability of management, and improving the rapidity of management work.SOLUTION: The concrete placing management system that manages the placing situation of concrete at a placing site is provided with distance sensors 13 and 14 installed around a concrete unloading place to measure the distance to a concrete carrier W, determination means 11 to determine whether or not the concrete carrier W has entered the unloading place based on the measured values of the distance sensors 13 and 14, measurement means 12 that counts the number of concrete carriers W when it is determined by the determination means 11 that there is a concrete carrier W entering the unloading place, and a display device 20 that can display the result measured by the measurement means 12.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a concrete pouring management system. [Background technology]

[0002] A conventional system for managing the concrete pouring status at a concrete pouring site is disclosed in Patent Document 1. The management system in Patent Document 1 includes a host computer equipped with a database and multiple communication devices that transmit data to the database and check the contents of the database. The management system in Patent Document 1 allows ready-mixed concrete manufacturing companies, construction companies, sales companies, etc. to check information on the number of concrete trucks being used for concrete pouring as needed. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2018-1658 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the management system in Patent Document 1 requires on-site workers to manually confirm the number of concrete trucks being used for concrete pouring and input the delivery volume, etc. This increases personnel costs and poses many problems in terms of the reliability of management and the speed of management work. In particular, when there are multiple pouring areas at a pouring site, it becomes more complicated to check the number of concrete transport trucks and input the delivery volume, etc., so there was a demand to improve this.

[0005] The present invention aims to solve the above-mentioned problems, and has as its object to propose a concrete pouring management system that can reduce human costs, improve the reliability of management, and increase the speed of management work. [Means for solving the problem]

[0006] In order to solve such problems, the present invention provides a concrete pouring management system for managing the concrete pouring status at a pouring site. The concrete pouring management system is installed around a concrete unloading site, and the system monitors the distance to a concrete transport vehicle. and the height of the concrete transport vehicle a determination means for determining whether or not a concrete transport vehicle has entered the unloading area based on the measurement value of the distance sensor; a measurement means for counting the number of concrete transport vehicles when the determination means determines that a concrete transport vehicle has entered the unloading area; and a display device capable of displaying the results measured by the measurement means. The determination means is preset with a distance threshold for determining whether the concrete transport vehicle is present or not, and a height threshold for distinguishing between the concrete transport vehicle and at least a site worker. The determination means determines that the concrete transport vehicle has entered the unloading location when the measured distance value is smaller than the distance threshold for a predetermined period of time and the measured height value is greater than the height threshold.

[0007] In the present invention, the presence or absence of a concrete transport vehicle that has entered the unloading area (such as around the hopper of a concrete pump vehicle) can be automatically determined by the determination means based on the measurement values ​​of the distance sensor. Therefore, there is no need for a site worker to wait near the unloading area and visually check and record the presence or absence of a concrete transport vehicle. In addition, the number of concrete transport vehicles is counted by the measuring means and the results are displayed on the display device, which makes management more reliable and quicker. Furthermore, the display device allows not only on-site workers but also ready-mixed concrete manufacturers, construction companies, sales companies, etc. to conveniently share the pouring status.

[0008] It is also desirable that the measuring means be capable of measuring the amount of concrete poured.

[0009] By configuring it in this way, the progress of pouring can be accurately and easily grasped.

[0010] In addition, the unloading location is located at the same location as the concrete pouring site. number distribution When the distance sensor, the determining means, and the measuring means are preferably provided in correspondence with each of the unloading locations, the results of measurements by each of the measuring means are preferably displayed together on the display device.

[0011] This configuration allows the concrete pouring status to be displayed on the display device in a consolidated manner even when there are multiple areas where concrete is to be unloaded at the pouring site. This allows for reliable management and rapid management work to be performed even at large-scale pouring sites. [Effects of the Invention]

[0012] According to the concrete pouring management system of the present invention, it is possible to reduce personnel costs, improve the reliability of management, and increase the speed of management work. [Brief explanation of the drawings]

[0013] [Figure 1] FIG. 1 is a control block diagram showing a concrete pouring management system according to an embodiment of the present invention. [Figure 2] 1 is a block diagram illustrating a concrete pouring management system according to an embodiment of the present invention. [Figure 3] 1 is a plan view schematically showing a pouring structure as a pouring site to which a concrete pouring management system according to an embodiment of the present invention is applied. FIG. [Figure 4] 1 is a schematic plan view showing a state in which an agitator vehicle is located behind a hopper of a concrete pump vehicle in a concrete pouring management system according to an embodiment of the present invention. FIG. [Figure 5] 1 is a schematic side view showing a state in which an agitator vehicle is located behind a hopper of a concrete pump vehicle in a concrete pouring management system according to an embodiment of the present invention. FIG. [Figure 6]FIG. 10 is a schematic plan view showing the inclination adjustment of a distance sensor in a concrete pouring management system according to an embodiment of the present invention. [Figure 7] FIG. 1 is an explanatory diagram showing the display contents of a display device applied to a concrete pouring management system according to an embodiment of the present invention. [Figure 8A] 1 is a flowchart showing the processing of operation control related to the concrete pouring management system according to an embodiment of the present invention. [Figure 8B] 1 is a flowchart showing the processing of operation control related to the concrete pouring management system according to an embodiment of the present invention. [Figure 9] 10 is a schematic plan view showing another installation mode of a distance sensor applied to a concrete pouring management system according to an embodiment of the present invention. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0014] Hereinafter, an embodiment of the present invention will be described with reference to the drawings as appropriate. In the following, a concrete pouring management system will be described for a pouring structure (pouring site) K having multiple pouring areas A to F as shown in Figure 3. However, the number of pouring areas A to F is not limited, and the system can also be applied to a pouring site having a single pouring area.

[0015] The concrete pouring management system of this embodiment counts the number of agitator vehicles W, which are concrete transport vehicles, that have arrived at the multiple concrete pump trucks P1 to P6 stationed at the pouring site K, and displays the progress of pouring in each of the pouring areas A to F on a display device 20 (see FIG. 8). The concrete pump trucks P1 to P6 are equipped with hoppers H (see FIG. 4) that receive concrete, and in this embodiment, hoppers H are the locations where the concrete is unloaded.

[0016] The concrete pouring management system includes a management control unit 10 as shown in FIG. 1. The management control unit 10 is provided individually for each concrete pump vehicle (hereinafter referred to as each pump vehicle) P1 to P6. The management control unit 10 may be implemented in each pump vehicle P1 to P6, or may be provided separately from each pump vehicle P1 to P6. Furthermore, part of the configuration may be equipped in each pump vehicle P1 to P6. Below, a description will be given of the management control unit 10 implemented in each pump vehicle P1 to P6. It is assumed that power for the management control unit 10 is supplied from each pump vehicle P1 to P6.

[0017] In this embodiment, pump vehicles P1 to P6 are arranged corresponding to pouring areas A to F. Information obtained by each management control unit 10 of each pump vehicle P1 to P6 is displayed on each display device 20 provided on each pump vehicle P1 to P6. Meanwhile, information obtained by each management control unit 10 is also stored on a server (not shown) on the Internet, as shown in FIG. 2. Each management control unit 10 acquires information on other pouring areas stored on the server from the server, and aggregates and sends this information together with the information on the relevant pouring area to the display device 20. This allows each display device 20 to aggregate and display the pouring information for all pouring areas A to F (see FIG. 7). The information for all pouring areas A to F stored on the server can be displayed via the Internet on mobile devices (display devices) such as smartphones carried by area workers, personal computers (display devices) in site offices, and tablets (display devices) carried by shipping personnel at ready-mixed concrete plants. Since the management control units 10 have the same configuration, the management control unit 10 installed in the pump vehicle P1 will be described below as an example.

[0018] The management control unit 10 includes a determination means 11, a measurement means 12, and a pouring completion determination means 19. Two sensors, a left distance sensor 13 and a right distance sensor 14, are connected to the management control unit 10. A display device 20 is also connected to the management control unit 10.

[0019] The left distance sensor 13 and the right distance sensor 14 are sensors that utilize known optical means. In this embodiment, a laser is used as the light source for projection. As shown in Figures 4 and 5, the left distance sensor 13 and the right distance sensor 14 are supported via hinge portions 16a and support arms 16, 16 on a support column 15 that is erected at the rear of the pump vehicle P1 (around the hopper H). The positions of the left distance sensor 13 and the right distance sensor 14 can be adjusted in the front-rear and left-right directions by the support arms 16, 16. 6, the left distance sensor 13 and the right distance sensor 14 can be tilted left and right and up and down (not shown) around the tip support part 17 of the support arm 16. This allows for more accurate measurement of the distance to the agitator wheel W.

[0020] As shown in Figure 4, the left distance sensor 13 measures the distance from the left rear of the pump vehicle P1 to the agitator vehicle W approaching the hopper H. The right distance sensor 14 measures the distance from the right rear of the pump vehicle P1 to the agitator vehicle W approaching the hopper H. The left distance sensor 13 and the right distance sensor 14 can also measure the height of the agitator vehicle W. By measuring the height, it is possible to avoid mistakenly measuring a field worker or the like approaching the hopper H of the pump vehicle P1 as the agitator vehicle W. The measured values ​​of the left distance sensor 13 and the right distance sensor 14 are sent to the determining means 11 of the management control unit 10.

[0021] The determination means 11 acquires the measurement values ​​of the left distance sensor 13 and the right distance sensor 14, and determines, based on the measurement values, whether or not an agitator vehicle W has entered a predetermined position to the left rear of the hopper H of the pump vehicle P1 or to the right rear of the hopper H. The determination means 11 is preset with a distance threshold for determining whether or not an agitator vehicle W is present at a predetermined position. The distance threshold is preferably set to, for example, 250 to 350 cm. In this embodiment, it is set to 300 cm. The determination means 11 also has preset a height threshold for distinguishing between an agitator vehicle W and a site worker or the like. The height threshold is set to, for example, 250 cm.

[0022] The determination means 11 then compares the distance threshold value with the measured value, and if the measured value remains smaller than the distance threshold value for a predetermined time, and compares the height measurement value with a height threshold value, and if the height measurement value is greater than the height threshold value, determines that the agitator vehicle W has entered a predetermined position behind the hopper H. This determination is made independently for each of the left distance sensor 13 and the right distance sensor 14. In other words, the determination means 11 can individually determine that the agitator vehicle W has entered the left rear or right rear of the hopper H. The predetermined time is set to, for example, 10 seconds. When the determining means 11 determines that the agitator vehicle W has entered the rear of the hopper H, it sends the determination result to the measuring means 12.

[0023] On the other hand, the determining means 11 compares the distance threshold value with the measured value, and determines that the agitator vehicle W is not located behind the hopper H if the measured value is greater than the distance threshold value. The determination means 11 may be configured to set a threshold value for standby determination that is greater than the distance threshold value, and to detect that the agitator vehicle W is waiting at a predetermined standby position behind the hopper H. By configuring in this way, pouring management becomes clearer.

[0024] Furthermore, the determination means 11 determines that the agitator vehicle W has left the rear of the hopper H when the measured value becomes greater than the distance threshold value after determining that the agitator vehicle W has entered the rear of the hopper H.

[0025] When the determination means 11 determines that an agitator vehicle W has entered the rear of the hopper H, the measurement means 12 receives the determination result and counts (integrates) the number of agitator vehicles W. Furthermore, the measuring means 12 calculates the amount of concrete poured based on the count value of the number of agitator vehicles W. The volume of ready-mixed concrete per agitator vehicle W can be changed by input on the display device 20 side.

[0026] The measuring means 12 sends information on the number of counted agitator vehicles W and information on the accumulated amount of concrete poured to the display device 20. Meanwhile, the measuring means 12 transmits the information to a server on the Internet via a communication device (not shown) provided in the management control unit 10. As a result, information corresponding to the pump vehicle P1 is stored in the server on the Internet. Similarly, information relating to the other pouring areas B to F is also stored in the server on the Internet.

[0027] The management control unit 10 acquires information on the other pouring areas B to F stored on a server on the Internet via a communication device (not shown), consolidates the acquired information, and sends it to the display device 20.

[0028] The concrete pouring completion determination means 19 determines whether or not concrete pouring has been completed in the concrete pouring area A. Specifically, the concrete pouring completion determination means 19 determines that concrete pouring has been completed when the value of the number of pump trucks P1 counted by the measurement means 12 reaches the value of the predetermined number of pump trucks to be poured in the concrete pouring area A.

[0029] The display device 20 has a display screen as shown in Fig. 7. The display screen displays information on each of the pouring areas A to F and other information in an aggregated manner. The display screen has three divided display regions R1 to R3. Each piece of information is displayed in a simplified format on the display screen. Display area R1 on the left side of the display screen is a main area that displays information related to the pouring area A of the pump vehicle P1. Information on the number of agitator vehicles W and information on the pouring amount of concrete input from the measurement means 12 is displayed in display area R1. Specifically, the pouring area "Area A" is displayed in the frame indicated by reference numeral 21a in the figure, and the current number of agitator vehicles W and the positions where the agitator vehicles W have entered are displayed in the frame indicated by reference numeral 21b. In this case, if a triangle mark is displayed to the left of the number of vehicles, it indicates that an agitator vehicle W is located to the left of the hopper H, and if a triangle mark is displayed on the right, it indicates that an agitator vehicle W has entered the right of the hopper H.

[0030] The box indicated by reference numeral 21c in the figure displays the total pouring volume, which is the sum of the amount of concrete poured, and the box indicated by reference numeral 21d displays the progress of pouring. The box indicated by reference numeral 21e in the figure displays the volume of ready-mixed concrete in the agitator vehicle W. This volume is a pre-registered default value, but can be changed manually each time. The total pouring volume is calculated based on the volume of ready-mixed concrete in the agitator vehicle W. The box indicated by reference numeral 21f in the figure displays the number of concrete pours planned for Area A.

[0031] The display area R2 on the right side of the display screen is a sub-area that displays the progress of the entire area and information about the concrete pouring areas B to F other than the concrete pouring area A. The information about the other concrete pouring areas B to F is obtained from a server on the Internet via the communication device of the management control unit 10. Specifically, the progress of the entire area is displayed in the frame indicated by reference numeral 22a in the figure, and the number of agitator vehicles W, the positions of the agitator vehicles W, and the progress of the concrete pouring areas B to F are displayed in the frame indicated by reference numeral 22b in the figure.

[0032] A display area R3 at the bottom of the display screen is an area for displaying other information and settings. Specifically, the concrete pouring history for three vehicles in area A is displayed within the frame indicated by reference numeral 23a in the figure. The information displayed includes the position of the agitator vehicle W, the volume of ready-mixed concrete, the IN time (arrival time of the agitator vehicle W), the OUT time (departure time of the agitator vehicle W), the elapsed time since pouring, and a delete button. The IN time is the time when the determination means 11 of the management control unit 10 determines that the agitator vehicle W has entered the rear of the hopper H. The OUT time is the time when the determination means 11 determines that the agitator vehicle W has departed. If the volume of ready-mixed concrete is changed, it can be changed by touching the volume field in the frame 23a. The changed information is reflected in the information on the cumulative pouring volume.

[0033] Other information is displayed in the frame indicated by the reference symbol 23b in the display area R3. The subframe 24a of the frame 23b displays information on the measured distance of the left distance sensor 13 and the right distance sensor 14, the detected distance (threshold distance), the number of seconds elapsed (elapsed time), and the number of seconds detected (predetermined time: threshold of the elapsed time at which the detected distance is reached). The subframe 24b also displays information on the date and time and the elapsed time since the start of pouring. The subframe 24c is an operation field for acquiring information, and a touch operation starts acquiring information on the entire area. It is also possible to set the information to be updated in real time. The subframe 24c displays the communication status (radio wave strength) of the communication device.

[0034] Next, the operation control process of the concrete pouring management system of this embodiment will be described. 8A and 8B are flowcharts showing the operation control process. 8A, when the operation control process is started, various settings are input in step ST1. In step ST1, the management control unit 10 receives input of various settings related to pouring management, such as data on the detection distance (threshold distance) stored in advance in a storage unit or the like (not shown), data on the number of seconds for detection (predetermined time), data on the height of the agitator vehicle W, data on the volume of ready-mixed concrete in the agitator vehicle W, and data on the number of vehicles planned to be poured.

[0035] In step ST2, the left distance sensor 13 and the right distance sensor 14 start measuring the left rear and right rear of the pump vehicle P1. The following steps ST3 to ST12 are operation control processing based on the measurement value of the left distance sensor 13. In step ST3, the determination means 11 of the management and control unit 10 compares the measurement value of the left distance sensor 13 with the distance threshold value and determines whether the measurement value of the left distance sensor 13 is smaller than the distance threshold value. If the measurement value of the left distance sensor 13 is larger than the distance threshold value, that is, if the agitator vehicle is not in the predetermined position to the left rear of the hopper H (if there is nothing within the distance threshold value), the determination is No in step ST3 and the process proceeds to step ST9. In step ST9, the determination means 11 determines the state of the left rear based on the presence or absence of a flag. In this case, the determination means 11 determines whether the state of the left rear is a "non-detection" state with no flag set, a "provisional detection" flag set, or a "detection" flag set (detection in progress). In this case, the state is determined to be a "non-detection" state with no flag set, and the process proceeds to step ST13 (see FIG. 8B).

[0036] On the other hand, in step ST3, if the measurement value of the left distance sensor 13 is smaller than the distance threshold, that is, if the agitator vehicle W has entered a predetermined position to the left rear of the pump vehicle P1, the result of step ST3 is judged as Yes and the process proceeds to step ST4.

[0037] In step ST4, the determination means 11 determines the state of the left rear. In this case, the determination means 11 determines whether the state of the left rear is the initial value of "non-detection," a "provisional detection" state before it is confirmed that the agitator wheel W has entered, or a "detection" state after it is confirmed that the agitator wheel W has entered. In this case, since it is the first time that the agitator wheel W has been detected as having entered, it is determined to be in the "non-detection" state, and the process proceeds to step ST5. In step ST5, the determination means 11 sets a "provisional detection" flag for the left rear state, starts counting the detection time of "provisional detection," and proceeds to step ST13. Then, the process proceeds to step ST2 via steps ST13 to ST27, which will be described later, and the following steps are repeated.

[0038] If the determination in step ST3 of this repetition is again Yes, the process proceeds to step ST4, where it is determined that the state is "tentative detection", and the process proceeds to step ST6. In step ST6, the determination means 11 starts counting the detection time of "tentative detection", and determines whether the detection time has passed a preset number of seconds. If the detection time has not passed the preset number of seconds, the determination in step ST6 is No, and the process proceeds to step ST13. Then, the process proceeds to step ST2 via steps ST13 to ST27 described below, and the following is repeated. On the other hand, if the detection time has passed the preset number of seconds in step ST6, the determination in step ST6 is Yes, and the process proceeds to step ST7.

[0039] In step ST7, the determination means 11 determines that the agitator vehicle W has entered the left rear of the hopper H, that is, that ready-mixed concrete can be poured into the hopper H of the pump vehicle P1, and sets a "detection" flag. The time when the "detection" flag is set becomes the "IN time" of the agitator vehicle W.

[0040] In step ST8, the measuring means 12 counts (integrates) the number of agitator vehicles W.

[0041] On the other hand, if the "provisional detection" flag is set and then the determination in the repeated step ST3 is "No," the process proceeds to step ST9, where it is determined that the "provisional detection" flag was set, and the process proceeds to step ST10. In step ST10, the determination means 11 cancels the "provisional detection" flag for the left rear state and changes the left rear state to the "non-detection" state. This prevents the counting of vehicles and agitator vehicles W that temporarily come within the threshold distance to the left rear.

[0042] Furthermore, if the determination in the repeated step ST3 is No after the "detection" flag is set, the process proceeds to step ST9, where it is determined that the "detection" flag was set, and the process proceeds to step ST11. In step ST11, the determination means 11 starts counting the detection time of "non-detection" and determines whether the detection time has elapsed a preset number of seconds. If the detection time has not elapsed a preset number of seconds, the determination in step ST11 is No, and the process proceeds to step ST13. Then, the process proceeds to step ST2 via steps ST13 to ST27 described below, and the following is repeated. On the other hand, if the detection time has elapsed a preset number of seconds in step ST11, the determination in step ST11 is Yes, and the process proceeds to step ST12.

[0043] In step ST12, the determination means 11 determines that the agitator vehicle W has left the left rear of the hopper H, cancels the "detection" flag, and changes the state of the left rear to "non-detection." The time when the "detection" flag is canceled becomes the "OUT time" of the agitator vehicle W.

[0044] Next, the operation control process based on the measurement value of the right distance sensor 14 will be described with reference to steps ST13 to ST22 shown in Fig. 8B. The operation control process related to the right distance sensor 14 is similar to steps ST3 to ST12 of the operation control process based on the measurement value of the left distance sensor 13 described above. That is, in step ST13, the determination means 11 compares the measurement value of the right distance sensor 14 with the distance threshold value and determines whether the measurement value of the right distance sensor 14 is smaller than the distance threshold value. If the measurement value of the right distance sensor 14 is larger than the distance threshold value, that is, if the agitator vehicle is not in the predetermined position to the right rear of the hopper H (if there is nothing within the distance threshold value), the determination is No in step ST13 and the process proceeds to step ST19. In step ST19, the determination means 11 determines the state of the right rear based on the presence or absence of a flag. In this case, the determination means 11 determines whether the state of the right rear is a "non-detection" state where no flag is set, a "provisional detection" flag is set, or a "detection" flag is set (detection in progress). In this case, the state is determined to be a "non-detection" state where no flag is set, and the process proceeds to step ST23.

[0045] On the other hand, in step ST13, if the measurement value of the right distance sensor 14 is smaller than the distance threshold, that is, if the agitator vehicle W has entered a predetermined position to the right rear of the pump vehicle P1, the result of step ST13 is judged as Yes and the process proceeds to step ST14.

[0046] In step ST14, the determination means 11 determines the state of the right rear. In this case, the determination means 11 determines whether the state of the right rear is the initial value of "non-detection," a "provisional detection" state before it is confirmed that the agitator wheel W has entered, or a "detection" state after it is confirmed that the agitator wheel W has entered. In this case, since it is the first time that the agitator wheel W has been detected as entering, it is determined to be in the "non-detection" state, and the process proceeds to step ST15. In step ST15, the determination means 11 sets a "provisional detection" flag for the right rear state, starts counting the detection time of "provisional detection," and proceeds to step ST23. Then, the process proceeds to step ST2 via steps ST23 to ST27, which will be described later, and the following steps are repeated.

[0047] If the determination in step ST13 of this repetition is again Yes, the process proceeds to step ST14, where it is determined that the state is "tentative detection", and the process proceeds to step ST16. In step ST16, the determination means 11 starts counting the detection time of "tentative detection", and determines whether the detection time has passed a preset number of seconds. If the detection time has not passed the preset number of seconds, the determination in step ST16 is No, and the process proceeds to step ST23. Then, the process proceeds to step ST2 via steps ST23 to ST27 described below, and the following is repeated. On the other hand, if the detection time has passed the preset number of seconds in step ST16, the determination in step ST16 is Yes, and the process proceeds to step ST17.

[0048] In step ST17, the determination means 11 determines that the agitator vehicle W has entered the rear right of the hopper H, that is, that ready-mixed concrete can be poured into the hopper H of the pump vehicle P1, and sets a "detection" flag.

[0049] In step ST18, the measuring means 12 counts (integrates) the number of agitator vehicles W.

[0050] On the other hand, if the "provisional detection" flag is set for the right rear state and then the determination in the repeated step ST13 is "No," the process proceeds to step ST19, where it is determined that the "provisional detection" flag was set, and the process proceeds to step ST20. In step ST20, the determination means 11 cancels the "provisional detection" flag for the right rear state and changes the right rear state to a "non-detection" state. This prevents a vehicle or an agitator vehicle W that temporarily enters within the threshold distance for the right rear from being counted.

[0051] Furthermore, if the "detection" flag is set for the state of the right rear and then the determination is No in the repeated step ST13, the process proceeds to step ST19, where it is determined that the "detection" flag was set, and the process proceeds to step ST21. In step ST21, the determination means 11 starts counting the detection time of "non-detection" and determines whether the detection time has elapsed a preset number of seconds. If the detection time has not elapsed the preset number of seconds, the determination is No in step ST21 and the process proceeds to step ST23. Then, the process proceeds to step ST2 via steps ST23 to ST27 described below, and the following is repeated. On the other hand, if the detection time has elapsed the preset number of seconds in step ST21, the determination is Yes in step ST21 and the process proceeds to step ST22.

[0052] In step ST22, the determination means 11 determines that the agitator vehicle W has left the right rear of the hopper H, cancels the "detected" flag, and changes the state of the right rear to "not detected."

[0053] Next, the operation control process after determining the left rear and right rear states will be described with reference to steps ST23 to ST27. In step ST23, the measuring means 12 calculates the cumulative pouring amount based on the data on the volume of ready-mixed concrete in the agitator vehicle W input in step ST1. In this case, the cumulative pouring amount is calculated only when the "detection" flag is set, and is not calculated when the "non-detection" state or the "provisional detection" flag is set.

[0054] Then, in step ST24, the measuring means 12 calculates the concrete pouring progress based on the data of the planned number of concrete pouring vehicles input in step ST1 and the cumulative number of agitator vehicles W calculated in steps ST8 and ST18. In this case too, the concrete pouring progress is calculated only when the "detection" flag is set, and the concrete pouring progress is not calculated when the "non-detection" state or the "provisional detection" flag is set.

[0055] In step ST25, the management control unit 10 sends information on the number of agitator vehicles W counted by the measuring means 12, information on the accumulated pouring amount calculated by the measuring means 12, and information on the progress of pouring to the display device 20. The management control unit 10 also receives information on other pouring areas B to F from a server on the Internet via a communication device (not shown), consolidates this information, and sends it to the display device 20.

[0056] Thereafter, in step ST26, the display device 20 aggregates the received information on pouring area A and the information on the other pouring areas B to F and displays them on the display screen. In this case, the information on pouring area A is displayed in display area R1 on the display screen, and the progress of the entire area and information on pouring areas B to F are displayed in display area R2. In addition, other information and setting contents are displayed in display area R3.

[0057] In step ST27, the pouring completion determination means 19 compares the number of agitator vehicles W counted by the measurement means 12 with the number of agitator vehicles W to be poured that was input in step ST1, and determines whether the number of agitator vehicles W is equal to or greater than the number of agitator vehicles W to be poured. If the number of agitator vehicles W is smaller than the number of agitator vehicles W to be poured, i.e., if the number of agitator vehicles W is less than the number of agitator vehicles W to be poured, the determination in step ST27 is No, and the process proceeds to step ST2. Then, step ST3 is repeated. On the other hand, if the number of agitator vehicles W is equal to or greater than the number of agitator vehicles W to be poured, i.e., if the number of agitator vehicles W has reached the number of agitator vehicles W to be poured, the determination in step ST27 is Yes, and the process ends. Information on the completion of processing in the pouring area A is stored and shared on a server on the Internet via the communication device of the management and control unit 10.

[0058] According to the concrete pouring management system of this embodiment described above, the determination means 11 can automatically determine whether or not an agitator vehicle W has entered the rear of the hopper H of the pump vehicles P1 to P6 based on the measured values ​​of the left distance sensor 13 and the right distance sensor 14. Therefore, it is no longer necessary for a field worker to wait near the pump vehicles P1 to P6 to visually confirm and record the presence or absence of the agitator vehicle W.

[0059] Furthermore, the measuring means 12 counts (accumulates) the number of agitator vehicles W, and the results are displayed on the display device 20, resulting in excellent reliability of management and excellent speed of management work. Furthermore, the display device 20 allows not only on-site workers but also ready-mixed concrete manufacturers, construction companies, sales companies, etc. to conveniently share the pouring status. This allows ready-mixed concrete manufacturers to efficiently ship ready-mixed concrete, making it possible to pour concrete without interruption. Furthermore, it is easy to order additional quantities to make up for any shortfalls, and the amount of surplus ready-mixed concrete can be reduced.

[0060] Furthermore, since the measuring means 12 can measure the amount of concrete poured, the degree of progress (progress status) of pouring can be accurately and easily grasped.

[0061] Furthermore, even when there are multiple areas where concrete is poured at a concrete pouring site, the pouring status can be aggregated and displayed on the display device 20. Therefore, even at large-scale concrete pouring sites, it is possible to achieve management that is highly reliable and management work that is highly swift.

[0062] Although the embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and each component can be appropriately modified within the scope of the invention. For example, in the above embodiment, the left distance sensor 13 and the right distance sensor 14 are provided on each of the pump vehicles P1 to P6, but this is not limiting and they may be arranged using stands 18, 18 as shown in Fig. 9. In this case as well, the distance to the agitator vehicle W can be suitably measured.

[0063] Furthermore, the left distance sensor 13 and the right distance sensor 14 use lasers as light sources for projection, but this is not limiting and other optical means may be used. Also, a single distance sensor may be provided.

[0064] Furthermore, the determination means 11 does not necessarily have to have a height threshold, and may determine that the agitator vehicle W has entered the unloading area based only on a distance threshold.

[0065] The layout of the display areas R1 to R3 shown in the embodiment is merely an example and can be changed as appropriate. Display items can also be selected as appropriate.

[0066] Furthermore, in the above embodiment, a description has been given of a case where a plurality of pump vehicles P1 to P6 are arranged, but the present invention is not limited to this, and can also be applied to a concrete pouring site where only one pump vehicle P1 is arranged.

[0067] Furthermore, in the above embodiment, an agitator vehicle W is used as an example of a concrete transport vehicle, but the present invention is not limited to this, and a transport vehicle using a bucket may also be configured to measure distance using a distance sensor. [Explanation of symbols]

[0068] 10 Management and Control Unit 11 Judgment means 12 Measurement methods 13 Left distance sensor (distance sensor) 14 Right distance sensor (distance sensor) 20 Display device H Hopper (unloading location) P1~P6 Agitator vehicle (concrete transport vehicle) W pump truck

Claims

1. A concrete pouring management system that manages the pouring status of concrete at a pouring site, distance sensors installed around the concrete unloading area for measuring the distance to the concrete transport vehicle and the height of the concrete transport vehicle; a determination means for determining whether or not the concrete transport vehicle has entered the unloading location based on the measurement value of the distance sensor; a measuring means for counting the number of concrete transport vehicles when the determining means determines that the concrete transport vehicles have entered the unloading location; a display device capable of displaying the results measured by the measuring means, The determination means is preset with a distance threshold for determining whether or not the concrete transport vehicle is present, and a height threshold for distinguishing between the concrete transport vehicle and at least a site worker, A concrete pouring management system characterized in that the judgment means determines that the concrete transport vehicle has entered the unloading location when the measured distance value remains smaller than the distance threshold value for a predetermined period of time and the measured height value is greater than the height threshold value.

2. 2. The concrete pouring management system according to claim 1, wherein the measuring means is capable of measuring the amount of concrete poured.

3. The unloading locations are arranged in plurality at the concrete pouring site, the distance sensor, the determination means, and the measurement means are provided corresponding to each of the unloading locations; 3. A concrete pouring management system according to claim 1, wherein the results measured by each of the measuring means are collectively displayed on each of the display devices.

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