Measurement system

Abstract

To improve working efficiency in ground support force measurement.SOLUTION: A measurement system (100) includes a support force measurement device (20) used in measurement of ground support force, and a terminal (10) wirelessly communicable with the support force measurement device. The terminal receives measurement data measured by the support force measurement device from the support force measurement device by wireless communication, and displays the received measurement data on a display part.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to measurement systems. [Background technology]

[0002] Conventionally, simple portable bearing capacity measuring devices have been known that directly measure the compaction state of reclaimed land, roadbeds, and other ground on site (for example, Patent Document 1). Such bearing capacity measuring devices are connected to a processing unit by a cable, and various numerical analyses of the measurement results can be performed on site. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 4491674 Summary of the Invention [Problem to be solved by the invention]

[0004] When measuring using a bearing capacity measuring device, five measurements are generally taken per measurement point. Therefore, workers are required to check the measurement data for five measurements. However, the bearing capacity measuring device described in Patent Document 1 can only display the measurement data for one measurement at a time, so workers must repeatedly switch display screens to check the measurement data. As such, the bearing capacity measuring device described in Patent Document 1 has problems with the visibility of measurement data, and there is room for improvement in terms of work efficiency.

[0005] One aspect of the present disclosure aims to improve work efficiency in measuring ground bearing capacity. [Means for solving the problem]

[0006] In order to solve the above problems, a measurement system according to one embodiment of the present disclosure is a measurement system including a bearing capacity measuring instrument used to measure the bearing capacity of the ground, and a terminal capable of wireless communication with the bearing capacity measuring instrument, wherein the terminal receives measurement data measured by the bearing capacity measuring instrument from the bearing capacity measuring instrument via wireless communication and displays the received measurement data on a display unit. [Effects of the Invention]

[0007] According to one aspect of the present disclosure, it is possible to improve work efficiency in measuring ground bearing capacity. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a diagram illustrating an overview of a measurement system according to an embodiment of the present invention. [Figure 2] FIG. 2 is a block diagram showing an example of a hardware configuration of a terminal according to the present embodiment. [Figure 3] 10 is a flowchart illustrating an example of processing executed by the measurement system according to the present embodiment. [Figure 4] FIG. 10 is a diagram showing an example of an application screen displayed on a display of the terminal according to the embodiment. [Figure 5] FIG. 10 is a diagram showing an example of an application screen displayed on a display of the terminal according to the embodiment. [Figure 6] FIG. 10 is a diagram showing an example of an application screen displayed on a display of the terminal according to the embodiment. [Figure 7] FIG. 10 is a diagram showing an example of an application screen displayed on a display of the terminal according to the embodiment. [Figure 8] FIG. 10 is a diagram showing an example of an application screen displayed on a display of the terminal according to the embodiment. [Figure 9] FIG. 10 is a diagram showing an example of an application screen displayed on a display of the terminal according to the embodiment. [Figure 10] FIG. 10 is a diagram showing an example of an application screen displayed on a display of the terminal according to the embodiment. [Figure 11]FIG. 10 is a diagram showing an example of an application screen displayed on a display of the terminal according to the embodiment. [Figure 12] FIG. 10 is a diagram showing an example of an application screen displayed on a display of the terminal according to the embodiment. [Figure 13] FIG. 10 is a diagram showing an example of an application screen displayed on a display of the terminal according to the embodiment. [Figure 14] FIG. 1 is a diagram showing a conventional bearing capacity measuring instrument. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings. In the description of the drawings, identical or substantially identical components are designated by the same reference numerals, and description thereof will be omitted.

[0010] (Overview of measurement system 100) FIG. 1 is a diagram illustrating an overview of a measurement system 100 according to this embodiment. As shown in FIG. 1, the measurement system 100 includes a bearing capacity measuring instrument 20 and a terminal 10 configured to be able to wirelessly communicate with the bearing capacity measuring instrument 20. A worker M measures various data related to the bearing capacity of the ground using the terminal 10 and the bearing capacity measuring instrument 20. The terminal 10 may be any portable device. For example, the terminal 10 may be a smartphone, a tablet terminal, a laptop PC, or a wearable terminal. In the following, the terminal 10 will be described as a smartphone as an example.

[0011] The bearing capacity measuring device 20 is a tripod-shaped measuring device that can evaluate various data related to the bearing capacity of the ground in real time. The bearing capacity measuring device 20 is simple and easy to operate, reduces personal error, and does not require a reaction force, so it can be used in narrow spaces and mountainous areas.

[0012] The measurement principle of the bearing capacity measuring device 20 is to drop a rammer 23 equipped with an accelerometer onto the ground, and use the correlation between the impact acceleration (Ia value: Impact acceleration) obtained upon impact and the ground constants to calculate the strength constants required to calculate the bearing capacity of the foundation ground for a structure, etc. The bearing capacity measuring device 20 is capable of measuring (converting from the impact acceleration) the adhesion force (c), shear resistance angle (Φ), subgrade soil bearing capacity ratio (CBR: California Bearing Ratio), cone index (qc), subgrade reaction coefficient (K30), etc. These values ​​can be calculated as follows:

[0013] c(kN / m 2 ) can be calculated using Equation 1.

[0014] c = Ia × 7.073 + 0.785 (1)

[0015] Φ(°) can be calculated using Equation 2.

[0016] Φ=Ia×0.974+15.18 (2)

[0017] CBR (%) can be calculated by Equation 3.

[0018] CBR = Ia × 1.615 - 4.945 (3)

[0019] K30(MN / m 3 ) can be calculated using Equation 4.

[0020] K30=Ia×8.554-37.58 (4)

[0021] qc(kN / m 2 ) can be calculated using Equation 5.

[0022] qc=Ia×124.3−354.1 (5)

[0023] If necessary, please refer to the information published by the Ministry of Land, Infrastructure, Transport and Tourism's Kinki Regional Development Bureau and Kinki Technical Office (https: / / www.kkr.mlit.go.jp / kingi / kensetsu / gijutusien / sokuteiki.html).

[0024] The type of wireless communication between the terminal 10 and the bearing capacity measuring device 20 is not particularly limited, and any well-known wireless communication method can be adopted.

[0025] The lifting handle 21 is used to lift the rammer 23. A battery that serves as a power source for communications is set in the battery box 22. There are no particular restrictions on the battery used, but a rechargeable nickel-metal hydride battery, for example, may be used.

[0026] (Hardware configuration of terminal 10) Next, an example of the hardware configuration of the terminal 10 will be described with reference to Fig. 2. Fig. 2 is a block diagram showing an example of the hardware configuration of the terminal 10.

[0027] 2, the terminal 10 includes a processor 11, a memory 12, a storage device 13, a communication I / F 14, a display 15, and a GPS receiver 16. These components are connected to each other via a bus 17 so as to be able to communicate with each other.

[0028] The memory 12 is composed of a ROM (Read Only Memory), a RAM (Random Access Memory), etc., and stores programs executed by the processor 11, information used by the programs, etc. The processor 11 has a CPU (Central Processing Unit) that performs arithmetic processing, reads programs from the ROM, and executes the programs using the RAM as a working area. Although one processor 11 is shown in FIG. 2, this is not limiting, and multiple processors 11 may be provided. Furthermore, the computer-readable recording medium is not limited to ROM and RAM, and may include an EPROM (Erasable Programmable ROM), an EEPROM (registered trademark), etc.

[0029] The storage device 13 is configured with a hard disk drive (HDD), a solid state drive (SSD), a flash memory, or the like, and stores various programs and various data. The storage device 13 stores a dedicated application 131 (hereinafter simply referred to as the app 131) that functions as an interface for setting a measurement mode for the measurement target and displaying measurement data measured by the bearing capacity measuring device 20.

[0030] The communication I / F 14 is implemented as hardware such as a network adapter, various communication software, or a combination of these, and is configured to be able to realize wireless communication with the bearing capacity measuring device 20.

[0031] The display 15 is configured with a liquid crystal display, an organic EL display, or the like, and displays various information. The display 15 also includes a capacitance type touch sensor, and functions as an input device that accepts touch operations by the worker M as input operations.

[0032] The GPS receiver 16 receives radio waves from artificial satellites to obtain information about the location of the terminal 10 on the ground.

[0033] (Processing flow) Next, the flow of processing executed by the measurement system 100 will be described with reference to Fig. 3. Fig. 3 is a flowchart showing an example of processing executed by the measurement system 100.

[0034] In step S101, the terminal 10 determines whether a wireless communication connection with the bearing capacity measuring device 20 has been completed. Here, an operation performed by the worker M before the processing of step S101 will be described. Prior to the processing of step S101, the worker M presses the power button of the bearing capacity measuring device 20 to turn on the power of the bearing capacity measuring device 20. Subsequently, the worker M presses the power button of the terminal 10 to turn on the power of the terminal 10. Note that it does not matter which of the bearing capacity measuring device 20 and the terminal 10 is turned on first. The worker M operates the terminal 10 to launch the app 131 pre-installed on the terminal 10. When the app 131 is launched, a dedicated screen is displayed on the display 15 of the terminal 10, and a wireless communication connection is automatically initiated. Note that hereinafter, the dedicated screen displayed on the display 15 when the app 131 is launched may be simply referred to as the "app screen." When the wireless communication connection with the bearing capacity measuring device 20 is completed, an icon indicating that the connection has been completed is displayed on the app screen.

[0035] FIG. 4 shows an example of the application screen displayed on the display 15 when the wireless communication connection is complete. As shown in FIG. 4, the application screen displays an area 151 showing the current menu, an area 152 indicating that the wireless communication connection is complete, an area 153 showing the serial number of the rammer used in the bearing capacity measuring device 20, the remaining battery charge in the battery box 22 of the bearing capacity measuring device 20, and an icon indicating that the wireless communication connection is complete, an area 154 indicating the calibration deadline, an area 155 accepting the measurement mode selection in a pull-down menu, an area 156 indicating the "site name" (the name of the measurement point), an area 157 indicating the measurement point number and the number of measurements, an area 158 indicating measurement data information, an area 159 indicating the "measurement" menu item, an area 160 indicating the "measurement data" menu item, and an area 161 indicating the "settings" menu item. The "calibration deadline" here refers to the deadline by which certification must be obtained. For details on calibration, please refer to the aforementioned URL. Furthermore, the site name can be freely chosen by the worker M. For example, by assigning a site name that allows the measurement point to be identified at a glance, measurement data can be managed efficiently. Alternatively, the site name may be assigned automatically based on the location information acquired by the GPS receiver 16. In this manner, an appropriate site name is automatically assigned without the need for the worker M to input the site name himself, thereby reducing the burden on the worker M and improving work efficiency.

[0036] Tapping "Measurement" in area 159 switches to a "Measurement Screen" related to measurement. Tapping "Measurement Data" in area 160 switches to a "Measurement Data Display Screen" that displays measurement data. Tapping "Settings" in area 161 switches to a "Settings Screen" related to various settings. When worker M first launches app 131, the screen displayed on display 15 is not limited to these three screens. For example, it may be set to display a "Measurement Screen" as shown in FIG. 4.

[0037] If the processing result of step S101 is YES, the process proceeds to step S102. If the processing result of step S101 is NO, the process is repeatedly executed until the processing result becomes YES.

[0038] If it is determined in step S102 that the wireless communication connection with the bearing capacity measuring instrument 20 has been completed, the terminal 10 accepts the selection of a measurement mode by the worker M. The worker M can select any measurement mode by tapping the pull-down box in area 155 (see FIG. 4). As shown in FIG. 4, there are seven measurement modes that the worker M can select. Specifically, these seven modes are "c," "Φ," "CBR," "K30," "qc," "qa (sandy soil)," and "qa (clay soil)." However, of these seven measurement modes, "qa (sandy soil)" and "qa (clay soil)" cannot be selected unless the conditions described below are set. In step S102, it is assumed that the worker M selects "CBR" as the measurement mode.

[0039] When the worker M taps "Measurement" in area 159 to open the measurement screen, the worker M can also preset the mode to be displayed in the measurement mode in area 155. As a setting method, the worker M taps "Settings" in area 161 to open the setting screen, and sets the desired measurement mode in the item "Default setting mode" (see FIG. 11).

[0040] After selecting the measurement mode, the worker M starts measuring the ground using the bearing capacity measuring instrument 20. Specifically, the worker M uses the lifting handle 21 to pull up the rammer 23 and operates the rammer drop lever to drop the rammer 23. As described above, the rammer 23 has a built-in accelerometer, and the impact acceleration (Ia value) is obtained from the impact of the drop. The application 131 measures the target data (here, CBR) based on the measurement mode selected in the processing of step S102.

[0041] In step S103, the first measurement data is displayed in the center of the app screen. In this embodiment, the ground measurements are performed five times in total, but this is not limited to five times. An example of how the first measurement data is displayed is shown in FIG. 5. As shown in FIG. 5, when worker M performs the first measurement, area 157 on the app screen displays that the Ia value in the first measurement was "30.3" and that the CBR for the measurement mode selected by worker M was "44.0." If worker M confirms the first measurement data and finds no problems, he or she taps the OK button to start the second measurement. Note that worker M can perform the second measurement without tapping the OK button. Tapping the OK button switches the app screen display to a state where the second measurement is possible, and the time and measurement data of the first measurement are displayed in area 158. Note that "Point 0001" in area 157 indicates the first measurement point on a given measurement date. The numbers 1 and 2 following "Point 0001" indicate the number of measurements at that point. In other words, "Point 0001-1" indicates the first measurement at the first measurement point on a certain measurement day, and "Point 0001-2" indicates the second measurement at the first measurement point on a certain measurement day.

[0042] Worker M repeatedly performs the second, third, fourth, and fifth measurements at the same measurement point, leaving measurement intervals (usually about 20 cm) between each measurement. As shown in Figure 6, the button displayed in area 157 is the "OK button" until the fourth measurement, but when the fifth measurement is completed, the button displayed in area 157 changes to "Next Point." When worker M taps the "Next Point" button, the five measurement data at point 0001 are saved. Ground measurements are usually performed by selecting five locations on a circle for each measurement point. Furthermore, measurement points are usually selected in flat locations. If it is difficult to find a flat location, the ground surface can be shaped to a degree that does not disturb the surface, or a thin layer of standard sand can be spread to create a flat finish.

[0043] If the terminal 10 is turned off before five measurements are taken for one measurement point, the measurement data for that measurement point will not be saved. That is, once measurements have been taken a predetermined number of times (here, five times) (YES in step S104), the process proceeds to step S105, and the application 131 saves the five pieces of measurement data for that measurement point.

[0044] The processing flow in the flowchart shown in FIG. 3 is an example, and steps may be deleted, new steps may be added, or the processing order may be changed within the scope of the gist of the invention.

[0045] (Measurement data display screen) FIG. 7 is a diagram illustrating a "measurement data display screen," an example of an application screen displayed on the display 15 of the terminal 10. As described above, when "measurement data" shown in area 160 is tapped, the "measurement data display screen" shown in FIG. 7 is displayed. The measurement data display screen displays a list of measurement dates and measurement point histories. Specifically, area 162 displays a list of measurement dates and site names. In the example shown in FIG. 7, the histories for six measurement dates are displayed. By tapping the printer icon shown in area 163, the worker M can print the target measurement data. By tapping the trash can icon shown in area 164, the worker M can delete the target measurement data. By tapping the button shown in area 165, the worker M can delete all measurement data. By tapping the button shown in area 166, the worker M can print all measurement data.

[0046] As shown in FIG. 7, the history of measurement dates and measurement points is displayed in a list on one screen, allowing the worker M to check the history of measurement dates and measurement points at once. With a conventional bearing capacity measuring instrument 90 (see FIG. 14), the display screen is small, so the worker M was unable to check such measurement history at once. According to this embodiment, it is possible to provide a display of measurement history that is easy to view. This improves the work efficiency related to ground measurement.

[0047] (Daily measurement data list) In FIG. 7, by tapping on the date or site name of the target in the measurement history shown in area 162, worker M can open a list of measurement data for that day as shown in area 167. The measurement data list displays the "site name," "measurement time," "measurement mode," "average value," etc., and this measurement data can also be printed from the list. The "average value" here refers to the average value of five measurement data sets. By tapping on the date or site name again, worker M can close the measurement data list. Furthermore, by tapping on the measurement data column shown in area 168 on the list, worker M can open a "measurement data details screen" that displays details of the measurement data. Details of the "measurement data details screen" will be explained with reference to FIG. 8.

[0048] (Measurement data details screen) 8 is a diagram showing an example of a "measurement data details screen" showing details of the measurement data. On the measurement data details screen, as shown in area 172, the measurement points, measurement times, Ia values, and five CBR measurement data are displayed in a list. Also, as shown in area 173, the average value of the five Ia values, the maximum value of the five measurements, and the minimum value of the five measurements are displayed. Also, as shown in area 174, the average value of the five CBR values, the maximum value of the five measurements, and the minimum value of the five measurements are displayed.

[0049] The measurement data details screen also displays an area 170 for displaying the previous measurement data, an area 171 for displaying the next measurement data, an area 175 for printing the measurement data, an area 176 for outputting the measurement data in a predetermined file format, and an area 177 for deleting the measurement data. The "predetermined file format" here is not particularly limited, but may be, for example, a CSV file format. Worker M can connect terminal 10 to a personal computer and output the CSV file, allowing him to edit the CSV file on the personal computer.

[0050] As shown in Fig. 8, five sets of measurement data are displayed on one screen, allowing worker M to check all five sets of measurement data at once. With a conventional bearing capacity measuring instrument 90 (see Fig. 14), the display screen is small and so only one set of measurement data can be displayed, and in order to check all five sets of measurement data, worker M must switch the display screen multiple times. According to this embodiment, five sets of measurement data can be checked at once without switching the display screen as in the conventional method, thereby improving work efficiency.

[0051] FIG. 8 shows an example in which CBR is displayed as the measurement data, but it is possible to switch the measurement data to other measurement data, i.e., c, Φ, K30, or qc. FIGS. 9 and 10 are diagrams explaining a method for switching the measurement data to other measurement data and the app screen after switching. As shown in FIG. 9, operator M can tap the pull-down menu in area 172 to select the measurement data he or she wants to check. Here, it is assumed that operator M selects "qc." In this case, as shown in FIG. 10, the measurement data displayed in the list changes from "CBR" to "qc." At this time, five qc measurement data are displayed in the list in area 172. Furthermore, as shown in area 174, the average value of the five qc measurements, the maximum value of the five measurements, and the minimum value of the five measurements are displayed.

[0052] As shown in FIGS. 9 and 10, according to this embodiment, worker M can instantly switch from one measurement data item to another and immediately check the other measurement data. With a conventional bearing capacity measuring instrument 90 (see FIG. 14), only one piece of pre-specified measurement data could be displayed. Therefore, when checking other measurement data with a conventional bearing capacity measuring instrument 90, it is necessary to extract the measurement data from the bearing capacity measuring instrument 90, import the extracted measurement data into a computer or the like, and process it. This type of work is time-consuming and labor-intensive. In contrast, according to this embodiment, other measurement data can be checked immediately on the spot without the need to transfer data as in the conventional method, thereby improving work efficiency.

[0053] (Settings screen) FIG. 11 is a diagram illustrating a "settings screen," which is an example of an application screen, displayed on the display 15 of the terminal 10. As described above, when "settings" shown in area 161 is tapped, the "settings screen" shown in FIG. 11 is displayed. The settings screen displays an area 180 for setting the conditions for qa bearing strength (sandy soil), an area 181 for setting the conditions for qa bearing strength (clay soil), and the like. Other items include printer settings and theme color settings, but these are well known and will not be described here.

[0054] (Allowable bearing capacity) This section explains the qa bearing capacity (sandy soil) and qa bearing capacity (clay soil). These two indices are referred to as "allowable bearing capacity." A known method is to calculate the shear resistance angle (Φ) and cohesion (c) using a relational equation based on the impact acceleration measured by a bearing capacity measuring device 20, and then calculate the allowable bearing capacity of the ground from the calculated shear resistance angle (Φ) and cohesion (c). Specifically, the "Ultimate Bearing Capacity Calculation Formula" in Ministry of Land, Infrastructure, Transport and Tourism Notification No. 1113, Guidelines for the Design of Building Foundations, can be used to calculate the allowable bearing capacity of the ground. However, because it is difficult to use a single formula to calculate the allowable bearing capacity for soils ranging from sandy to cohesive, various calculation methods have been proposed depending on the type of ground. Detailed formulas are omitted here, but if necessary, please refer to the aforementioned URL.

[0055] Calculation of the allowable bearing capacity of sandy soil (qa bearing capacity (sandy soil)) requires certain conditions. The certain conditions will be explained with reference to Fig. 12. Fig. 12 is an application screen that is switched to when the area 180 shown in Fig. 11 is tapped. As shown in Fig. 12, the conditions required for calculation of the qa bearing capacity (sandy soil) are "shape of the sandy soil ground," "short side (m) of the rectangle of the sandy soil ground," "long side (m) of the rectangle of the sandy soil ground," and "unit volume weight of the bearing ground (kN / m 3)" and "Minimum width of the foundation bottom surface (m)." Worker M taps the pull-down box in area 190 to select the shape of the sandy soil ground from "Continuous," "Square," "Rectangle," and "Circle." Worker M also taps the input fields shown in areas 190 to 194 to input values. After completing the input, worker M taps the confirm button shown in area 195 to set the conditions. Once these conditions are set, it becomes possible to select "qa (sandy soil)" as the measurement mode (see Figure 4).

[0056] Calculation of the allowable bearing capacity of clayey soil (qa bearing capacity (clayey soil)) also requires certain conditions, as with sandy soil. These certain conditions will be explained with reference to FIG. 13. FIG. 13 shows an application screen that switches when area 181 shown in FIG. 11 is tapped. As shown in FIG. 13, the conditions required for calculating the qa bearing capacity (clayey soil) are the "shape of the clayey soil ground," the "short side (m) of the clayey soil ground rectangle," and the "long side (m) of the clayey soil ground rectangle." Operator M taps the pull-down box in area 200 to select the shape of the clayey soil ground from "continuous," "square," "rectangle," and "circle." Operator M also taps the input fields shown in areas 201 and 202 to input values. After completing the input, operator M taps the confirm button shown in area 203 to set the conditions. Once these conditions are set, operator M can select "qa (clayey soil)" as the measurement mode (see FIG. 4).

[0057] A conventional bearing capacity measuring device 90 (see FIG. 14) does not have a function for accepting the conditions necessary for calculating the allowable bearing capacity. Therefore, when checking the allowable bearing capacity (sandy soil and / or clayey soil) with a conventional bearing capacity measuring device 90, it is necessary to extract measurement data from the bearing capacity measuring device 90, import the extracted measurement data into a computer or the like, enter the necessary conditions, and then process the measurement data. This type of work is time-consuming and labor-intensive. In contrast, according to this embodiment, it is possible to automatically measure the allowable bearing capacity (sandy soil and / or clayey soil) simply by setting the conditions in advance. Therefore, according to this embodiment, the time and labor required in the conventional method is eliminated, thereby improving work efficiency.

[0058] (Action and effect) As described above, according to this embodiment, the following advantageous effects can be obtained.

[0059] The measurement system 100 includes a bearing capacity measuring instrument 20 used to measure the bearing capacity of the ground, and a terminal 10 capable of wireless communication with the bearing capacity measuring instrument 20. The terminal 10 receives measurement data measured by the bearing capacity measuring instrument 20 from the bearing capacity measuring instrument 20 via wireless communication, and displays the received measurement data on a display unit (for example, a display 15).

[0060] According to the above configuration, for example, the display 15 of the terminal 10 displays a list of measurement dates and measurement point histories on one screen, allowing the worker M to check the measurement history at once (see FIG. 7). With a conventional bearing capacity measuring instrument 90 (see FIG. 14), the display screen is small, so the worker M could not check such measurement history at once. According to the above configuration, it is possible to provide a display of the measurement history that is easy to see at a glance. This improves the work efficiency related to ground measurement.

[0061] Furthermore, in conventional bearing capacity measuring devices 90, the memory capacity was small and the number of measurement data that could be stored was small, but with the above configuration, by adopting a terminal 10 equipped with a large-capacity storage medium such as a smartphone or tablet terminal, the number of measurement data that can be stored can be significantly increased.

[0062] Furthermore, when processing measurement data with a conventional bearing capacity measuring device 90, it is necessary to use an external storage medium such as a USB memory to extract the measurement data from the bearing capacity measuring device 90 and import the measurement data into a personal computer, etc. In contrast, with the above configuration, by directly connecting the terminal 10 (for example, a smartphone) to a personal computer, etc., it is possible to easily import the measurement data into a personal computer, etc. without using an external storage medium such as a USB memory, thereby improving work efficiency.

[0063] Furthermore, with the conventional bearing capacity measuring device 90, it is necessary to carry a heavy arithmetic processing device in addition to the bearing capacity measuring device 90. In contrast, with the above configuration, it is sufficient to carry a lightweight terminal 10 (for example, a smartphone), so there is no need to carry a heavy arithmetic processing device. This reduces the burden on the worker M and improves work efficiency.

[0064] The terminal 10 may also accept an operation to select a measurement mode to be measured and display measurement data related to the measurement mode on the display unit. Here, "accepting an operation to select a measurement mode" refers to a process of accepting the selection of the measurement mode shown in area 155 of FIG. 4 in a pull-down format.

[0065] The interface on the terminal 10 for selecting the optimum measurement mode depending on the type and condition of the ground is intuitive and easy to use for the worker M (see Figure 4). Such an interface improves the adaptability of measurements and work efficiency.

[0066] Furthermore, the terminal 10 may display all of the measurement data measured a predetermined number of times at the same measurement point on a single screen on the display unit, where an example of the predetermined number of times is five times.

[0067] According to the above configuration, measurement data for a predetermined number of times (five times) is displayed on one screen, allowing worker M to check all five sets of measurement data at once (see FIG. 8). With conventional bearing capacity measuring devices 90, the display screen is small and so only one set of measurement data can be displayed, and in order to check all five sets of measurement data, worker M must switch the display screen multiple times. According to the above configuration, measurement data for five sets of measurement data can be checked at once without switching the display screen as in the conventional case, improving work efficiency.

[0068] Furthermore, the terminal 10 may accept an operation to switch the measurement mode on a screen that displays all of the measurement data measured a predetermined number of times, and display all of the measurement data related to the measurement mode after the switch as a single screen on the display unit. Here, "accepting an operation to switch the measurement mode" refers to a process of accepting a switch of the measurement mode in a pull-down format, as shown in area 172 in Fig. 9.

[0069] According to the above configuration, the worker M can instantly switch from one measurement data item to another and immediately check the other measurement data (see FIGS. 9 and 10). With a conventional bearing capacity measuring instrument 90, only one piece of pre-specified measurement data could be displayed. Therefore, when checking other measurement data with a conventional bearing capacity measuring instrument 90, it is necessary to extract the measurement data from the bearing capacity measuring instrument 90, import the extracted measurement data into a computer or the like, and process it. This type of work is time-consuming and labor-intensive. In contrast, according to the above configuration, the other measurement data can be checked immediately on the spot without having to transfer data as in the past, thereby improving work efficiency.

[0070] The terminal 10 may also accept input of conditions for calculating the allowable bearing capacity according to the type of ground, and display measurement data measured based on the conditions on the display unit. Here, "accepting input of conditions for calculating the allowable bearing capacity" refers to the process of accepting input of each condition described in Figure 12 and / or Figure 13.

[0071] Conventional bearing capacity measuring devices 90 do not have a function for accepting the conditions necessary for calculating the allowable bearing capacity. Therefore, when checking the allowable bearing capacity (sandy soil and / or clayey soil) using a conventional bearing capacity measuring device 90, it is necessary to extract measurement data from the bearing capacity measuring device 90, import the extracted measurement data into a computer or the like, enter the necessary conditions, and then process the measurement data. This type of work is time-consuming and labor-intensive. In contrast, with the above configuration, it is possible to automatically measure the allowable bearing capacity (sandy soil and / or clayey soil) simply by setting the conditions in advance. Therefore, with the above configuration, the time and labor required in the conventional method is eliminated, improving work efficiency.

[0072] Furthermore, the bearing capacity measuring device 20 is configured to be able to communicate with the terminal 10 using a battery set in the battery box 22. With this configuration, even if the battery runs out, measurement can be continued by switching to a spare battery, improving work efficiency.

[0073] It should be noted that a GPS receiver may be provided in the bearing capacity measuring device 20. For example, when the bearing capacity measuring device 20 is transported by a drone or the like and the ground is measured at the destination, if the bearing capacity measuring device 20 is provided with a GPS receiver, the measurement point can be identified, allowing the worker M to measure the ground remotely. With such a configuration, it becomes possible to perform measurements even in dangerous locations, and the worker M does not need to go to the site, thereby improving work efficiency.

[0074] [Software implementation example] The function of the terminal 10 (hereinafter referred to as a control device) can be realized by a program for making a computer function as a control device, and by a program for making a computer function as each control block of the control device.

[0075] In this case, the control device includes a computer having at least one device (e.g., a processor) and at least one storage device (e.g., a memory) as hardware for executing the program. The computer executes the program to realize each function described in the above embodiment.

[0076] The program may be stored non-transitory on one or more computer-readable storage media. The storage media may or may not be included in the control device. In the latter case, the program may be supplied to the control device via any wired or wireless transmission medium.

[0077] In addition, some or all of the functions of each control block can be realized by a logic circuit. For example, an integrated circuit in which a logic circuit that functions as each control block is formed is also included in the scope of the present disclosure. In addition, the functions of each control block can also be realized by, for example, a quantum computer.

[0078] The present disclosure is not limited to the above-described embodiments, and various modifications are possible within the scope of the claims. [Explanation of symbols]

[0079] 100 Measurement System 10 devices 20 Bearing force measuring device

Claims

1. A measurement system including a bearing capacity measuring instrument used to measure the bearing capacity of the ground and a terminal capable of wireless communication with the bearing capacity measuring instrument, The terminal receiving measurement data measured by the bearing capacity measuring device from the bearing capacity measuring device via wireless communication; The received measurement data is displayed on a display unit. Measurement system.

2. The terminal Accepts the operation to select the measurement mode to be measured, and displaying measurement data relating to the measurement mode on the display unit. The measurement system of claim 1 .

3. the terminal displays all of the measurement data measured a predetermined number of times at the same measurement point on one screen on the display unit; The measurement system of claim 2 .

4. The terminal accepting an operation to switch the measurement mode on a screen displaying all of the measurement data measured the predetermined number of times; all measurement data relating to the measurement mode after switching are displayed on one screen on the display unit; The measurement system of claim 3 .

5. The terminal Accepting input of conditions for calculating the allowable bearing capacity according to the type of ground; and displaying the measurement data measured based on the conditions on the display unit. The measurement system according to any one of claims 1 to 4.

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