Information processing device

Abstract

To provide an information processing device that enables accurate construction progress management. [Solution] The construction management device 50 includes a measurement data collection unit 501 that collects measurement data transmitted from a measurement device 20 that measures the terrain of the work site, a terrain information generation unit 502 that generates terrain information based on point cloud data in the measurement data collected by the measurement data collection unit 501, and a terrain information update unit 504 that updates the terrain information of the work site based on the terrain information generated by the terrain information generation unit 502. The terrain information generation unit 502 generates terrain information for the area based on point cloud data in the measurement data collected by the measurement data collection unit 501 each time the measurement data collection unit 501 collects measurement data. The terrain information update unit 504 updates the terrain information of the work site each time the terrain information generation unit 502 generates terrain information for the area.

Description

Technical Field

[0001] The present invention relates to an information processing device for managing the as-built shape at a work site such as a civil engineering work.

Background Art

[0002] Conventionally, there is known a technique for performing as-built shape management at a work site using point cloud data obtained by measuring the terrain of an excavation surface after excavation work is performed by a work machine. For example, in Patent Document 1, a backhoe (hydraulic excavator) is equipped with a laser sensor, and the point cloud data obtained by scanning an excavation target area with the laser light emitted from the laser sensor is transmitted to an as-built shape management device installed at a location different from the backhoe, and the difference between the point cloud data received by the as-built shape management device and the design data is compared to perform as-built shape management.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Since the terrain of the work site changes moment by moment according to the progress of the work, in order to achieve accurate as-built shape management, it is necessary to grasp the terrain of the work site in real time by reflecting the point cloud data measured at the work site without delay. However, in the system described in Patent Document 1, since the timing of transmitting the point cloud data acquired by the laser sensor to the as-built shape management device is not considered, there is a possibility that accurate as-built shape management cannot be achieved.

[0005] The present invention has been made in view of the above points, and an object thereof is to provide an information processing device capable of performing accurate as-built shape management.

Means for Solving the Problems

[0006] The information processing apparatus according to the present invention comprises: a measurement data collection unit that collects measurement data transmitted from a measuring device for measuring the terrain of a work site, the measurement data including point cloud data representing the coordinate values ​​of each measurement point on a surface to be measured in the terrain; a terrain information generation unit that generates terrain information for a region including the surface to be measured based on the point cloud data in the measurement data collected by the measurement data collection unit; and a terrain information update unit that updates the terrain information of the work site based on the terrain information of the region generated by the terrain information generation unit. The terrain information generation unit generates terrain information for the region based on the point cloud data in the collected measurement data each time the measurement data collection unit collects the measurement data, and the terrain information update unit updates the terrain information of the work site each time the terrain information generation unit generates terrain information for the region. [Effects of the Invention]

[0007] According to the present invention, it is possible to provide an information processing device that can perform accurate construction progress management.

[0008] Further features related to the present invention will become apparent from the description herein and the accompanying drawings. Problems, configurations, and effects other than those described above will be clarified by the following description of embodiments. [Brief explanation of the drawing]

[0009] [Figure 1] A diagram showing an example of a construction management system including a construction management device according to one embodiment of the present invention. [Figure 2] A diagram showing the hardware configuration of the construction management system. [Figure 3] This figure shows an example screen displaying terrain information stored in a construction management device. [Figure 4] An external view of a hydraulic excavator, an example of a piece of machinery used on a construction site. [Figure 5]A flowchart showing the processing flow performed when collecting and generating terrain information in a construction management device according to one embodiment of the present invention. [Figure 6] A flowchart showing the processing flow executed when creating a construction progress report in a construction management device according to one embodiment of the present invention. [Modes for carrying out the invention]

[0010] Figure 1 shows an example of a construction management system including a construction management device 50 according to one embodiment of the present invention. The construction management system shown in Figure 1 is configured such that a measuring device 20, an in-vehicle monitor 30, a management terminal 40, and the construction management device 50 communicate with each other via a public communication line 60.

[0011] The measuring device 20 is used at construction sites for civil engineering works and other projects to measure the topography of the construction site. The measuring device 20 is configured, for example, using LiDAR (Light Detection and Ranging), and can measure the distance to the target surface by scanning a laser beam across the target surface in the topography of the construction site and detecting the reflected wave. Alternatively, the distance to the target surface may be measured using, for example, a stereo camera. The measurement result of the distance to the target surface by the measuring device 20 is transmitted from the measuring device 20 to the construction management device 50 via a public communication line 60 including wireless communication, as measurement data including, for example, point cloud data representing the coordinate values ​​of multiple measurement points set at predetermined intervals on the target surface.

[0012] The vehicle-mounted monitor 30 is a device that is installed on a work machine used at a work site and displays various information on its screen to the operator of the work machine while the machine is in operation at the work site. The vehicle-mounted monitor 30 has a wireless communication function and can display any information on its screen by receiving display information transmitted from the construction management device 50 via the public communication line 60. The vehicle-mounted monitor 30 can be configured using, for example, a tablet computer.

[0013] The management terminal 40 is an information terminal for use by site supervisors and other managers at the work site. For example, a PC (Personal Computer) installed in the site office or a smartphone owned by the manager can be used as the management terminal 40. The management terminal 40 has wireless or wired communication capabilities and communicates with the construction management device 50 via the public communication line 60. This allows the management terminal 40 to issue operational instructions to the construction management device 50 in response to the manager's actions, and to display and provide the manager with topographic information of the work site stored in the construction management device 50.

[0014] The construction management device 50 has the following functional blocks: a measurement data collection unit 501, a terrain information generation unit 502, a terrain comparison unit 503, a terrain information update unit 504, a warning unit 505, a construction progress report creation unit 506, a user interface unit 507, and a data storage unit 510.

[0015] The measurement data acquisition unit 501 collects measurement data transmitted from the measurement device 20. The measurement data acquisition unit 501 collects measurement data at predetermined collection intervals (e.g., every 10 minutes). Details of the measurement data acquisition method by the measurement data acquisition unit 501 will be described later.

[0016] The terrain information generation unit 502 generates terrain information of the work site based on the point cloud data included in the measurement data collected by the measurement data collection unit 501. Here, it generates terrain information for the area of ​​the entire work site from which measurement data was acquired by the measurement device 20, that is, the area designated as the measurement target surface at the time of measurement data acquisition.

[0017] The terrain comparison unit 503 compares the terrain information generated by the terrain information generation unit 502 with the design data of a predetermined work site. The comparison results from the terrain comparison unit 503 are used in the processing performed by the terrain information update unit 504, the warning unit 505, and the construction progress report creation unit 506, respectively.

[0018] The terrain information update unit 504 updates the terrain information of the entire work site based on the terrain information generated by the terrain information generation unit 502 and the comparison result by the terrain comparison unit 503. Specifically, among the existing terrain information stored in the construction management device 50, the portion of the area where new terrain information has been generated by the terrain information generation unit 502 is replaced with the generated terrain information. Then, the update of the terrain information is performed by determining the display form of the terrain information after replacement based on the comparison result by the terrain comparison unit 503. However, for the terrain information corresponding to the lock range described later, even if the terrain information is generated by the terrain information generation unit 502, it is excluded from the update target by the terrain information update unit 504 so as not to be updated.

[0019] The warning unit 505 issues a warning to the operator of the work machine and the manager of the work site based on the comparison result by the terrain comparison unit 503. Specifically, based on the comparison result between the terrain information and the design data by the terrain comparison unit 503, the presence or absence of an area where the excavation amount is too large (hereinafter referred to as "excessive excavation area") with respect to a predetermined design value in the area where excavation work has been performed within the work site is judged, and a warning is issued when it is judged that there is an excessive excavation area. When a warning is issued by the warning unit 505, warning information representing the content is transmitted from the construction management device 50 to the in-vehicle monitor 30 and the management terminal 40. The in-vehicle monitor 30 and the management terminal 40 prompt the operator and the manager to pay attention by displaying a warning screen corresponding to the content and outputting a warning sound when receiving the warning information from the construction management device 50. Note that the warning target of the warning unit 505 is not limited to the excessive excavation area. For example, the warning unit 505 may also issue a warning when there is an area where the excavation amount is too small with respect to a predetermined design value.

[0020] Based on the comparison result by the terrain comparison unit 503, the as-built drawing creation unit 506 creates an as-built drawing for the output range designated by the manager within the work site using the terrain information stored in the construction management device 50. The as-built drawing is a form in a specified format used for the as-built management of the work site, representing the confirmation result that the terrain after construction is as designed. The as-built drawing creation unit 506 can create and save data representing the as-built drawing for the output range arbitrarily designated by the manager within the work site.

[0021] The user interface unit 507 is a part that accepts the user's input operations and provides information to the user. The terrain information stored in the construction management device 50, the as-built drawing created by the as-built drawing creation unit 506, etc. can be transmitted by this user interface unit 507 to the management terminal 40 via the public communication line 60 and provided to the manager of the work site, who is the user of the construction management device 50, via the management terminal 40. In addition, a person other than the manager of the work site, such as the supervisor or designer of the manager, may be able to access the construction management device 50 using an arbitrary information terminal, and the user interface unit 507 may provide various information to the information terminal in response to an instruction from the information terminal. Also, the user's input operations may be accepted and information may be provided to the user using a mouse, keyboard, display, etc. connected to the construction management device 50. In this case, in the construction management device 50, the user interface unit 507 performs reception processing of input signals from the mouse and keyboard and transmission processing of output signals to the display.

[0022] The data storage unit 510 is a part that stores and retains various data necessary for the operation of the construction management device 50. For example, the data storage unit 510 stores data such as the measurement data 511 collected by the measurement data collection unit 501 from the measuring device 20, the design data 512 of the preset work site, the terrain information data 513 representing the terrain information of the entire work site, and the as-built drawing data 514 representing the as-built drawing created by the as-built drawing creation unit 506.

[0023] Figure 2 shows the hardware configuration of the construction management device 50.

[0024] The construction management device 50 is implemented using a general information processing device such as a PC or server. As shown in Figure 2, for example, the construction management device 50 includes a processor 51, memory 52, external storage device 53, communication interface (communication IF) 54, input / output device 55, and a communication bus 56 connecting these parts.

[0025] The processor 51 controls various parts of the construction management device 50 and performs calculations related to various processes carried out by the construction management device 50. The processor 51 is configured using, for example, a CPU (Central Processing Unit) or a GPU (Graphics Processing Unit), and by executing programs stored in the memory 52, it can realize the various functional blocks of the construction management device 50 shown in Figure 1, including the measurement data acquisition unit 501, the terrain information generation unit 502, the terrain comparison unit 503, the terrain information update unit 504, the warning unit 505, and the completed report creation unit 506. The memory 52 is a semiconductor memory device such as RAM (Random Access Memory), and temporarily stores programs loaded from the external memory device 53 and executed by the processor 51, as well as necessary work data.

[0026] The external storage device 53 is, for example, a large-capacity non-temporary magnetic storage device or semiconductor storage device such as an HDD (Hard Disk Drive) or SSD (Solid State Drive), and stores programs executed by the processor 51 and data used for processing by the processor 51. As described above, some or all of these programs and data may be stored in the external storage device 53 in advance, or they may be introduced from the outside as needed. The data storage unit 510 in Figure 1 is realized by the external storage device 53.

[0027] The communication IF 54 operates in accordance with the control of the processor 51 and performs interface processing for sending and receiving various information via the public communication line 60 between the measuring device 20, the in-vehicle monitor 30, and the management terminal 40. The input / output device 55 is a device that receives operation input from the administrator and outputs information to be presented to the administrator. The administrator can perform operation input to the construction management device 50 using, for example, a mouse or keyboard. In addition, information provided by the construction management device 50 can be presented to the administrator using, for example, a display or printer. The communication IF 54 and the input / output device 55 realize the user interface unit 507 shown in Figure 1.

[0028] Figure 3 shows an example screen displaying terrain information stored in the construction management device 50. The construction management device 50 can display terrain information, which represents the terrain of the work site as a 3D model, based on terrain information data 513 stored in the data storage unit 510. In the example screen in Figure 3, a grid (mesh) 31 is set by dividing the 3D model of the terrain of the work site into predetermined intervals, and the terrain information of the work site is represented by color-coding each grid 31 according to the construction status (amount of terrain deviation from the design value) of each grid 31. Note that Figure 3 is just one example of a screen displaying terrain information, and terrain information may be displayed in other representation formats.

[0029] Figure 4 is an external view of a hydraulic excavator, an example of a work machine used at a construction site. The hydraulic excavator 100, a work machine, comprises a traveling body 3 with a pair of left and right tracks 1 and 2, a slewing body 4 rotatably mounted on the traveling body 3, a boom 5 rotatably connected to one end of the slewing body 4, an arm 6 rotatably connected to one end of the boom 5, and a bucket 7 rotatably connected to one end of the arm 6. The traveling body 3 and the slewing body 4 constitute the body of the hydraulic excavator 100.

[0030] The slewing body 4 is equipped with a driver's cab 8, a machine room 9 housing the engine and hydraulic pump, and a counterweight 10. The running body 3 is equipped with running motors 11 and 12 that drive the tracks 1 and 2 respectively, and a slewing motor (not shown) that drives the slewing body 4.

[0031] The hydraulic excavator 100 is equipped with a pair of left and right boom cylinders 13 and 14 that drive the boom 5, an arm cylinder 15 that drives the arm 6, and a bucket cylinder 16 that drives the bucket 7. In other words, the hydraulic excavator 100 has a working arm mechanism consisting of the boom 5, arm 6, and bucket 7, and the posture of this working arm mechanism is determined by the extension and retraction of the boom cylinders 13 and 14, the arm cylinder 15, and the bucket cylinder 16, respectively.

[0032] A measuring device 20 is installed at a predetermined position on the rotating body 4 via a mounting member 21. The measuring device 20 is a device for measuring the surface to be measured in the terrain around the hydraulic excavator 100 during or after work at a work site where the hydraulic excavator 100 performs excavation or leveling work. The surface to be measured is the ground or slope that the hydraulic excavator 100 is working on. The measuring device 20 is held by a mounting member 21 fixed to the rotating body 4, but it may be used detached from the mounting member 21.

[0033] Figure 4 shows an example where the measuring device 20 is mounted on the counterweight 10 in the slewing body 4, but the mounting position of the measuring device 20 is not limited to this. The measuring device 20 can be mounted on the slewing body 4 in any position or orientation as long as the mounting member 21 can be securely fixed and the surface to be measured at the work site can be reliably measured while the measuring device 20 is mounted on the slewing body 4. Furthermore, the measuring device 20 may be mounted in a location other than the slewing body 4 on the body of the hydraulic excavator 100. Moreover, the number of measuring devices 20 mounted on the slewing body 4 is not limited to one, and multiple measuring devices 20 may be mounted.

[0034] Figure 5 is a flowchart showing the processing flow performed when collecting and generating terrain information in a construction management device 50 according to one embodiment of the present invention. The construction management device 50 performs the processing shown in the flowchart of Figure 5, for example, at predetermined processing cycles.

[0035] In step S10, the measurement data collection unit 501 collects the measurement data transmitted from the measurement device 20. Here, for example, the period during which the measurement device 20 transmits measurement data to the construction management device 50 is set to the same value (e.g., 10 minutes) as the measurement data collection period of the measurement data collection unit 501. This allows the measurement data collection unit 501 to collect the measurement data transmitted from the measurement device 20 at predetermined collection intervals. Alternatively, for example, the measurement device 20 may continuously transmit measurement data to the construction management device 50, and the measurement data collection unit 501 may collect the measurement data already received by the construction management device 50 in batches at predetermined collection intervals. In either case, the measurement data collected by the measurement data collection unit 501 from the measurement device 20 is stored in the data storage unit 510 as collected measurement data 511.

[0036] In step S20, the measurement data collected in step S10 is sorted. Here, the measurement data collection unit 501 performs the following processing before storing the collected measurement data 511 in the data storage unit 510. The measurement data is sorted by excluding measurement data that is unnecessary for generating terrain information from the collected measurement data. For example, measurement data where the coordinate values ​​represented by the point cloud data differ significantly from other measurement data, or duplicate measurement data that represents essentially the same coordinate values ​​as other measurement data, can be excluded as unnecessary measurement data, thereby sorting the measurement data. Note that this sorting of measurement data may be performed on the measurement device 20 side rather than the construction management device 50. In this case, it is possible to reduce the amount of data transmitted from the measurement device 20 to the construction management device 50 by thinning out unnecessary measurement data. Also, the processing in step S20 may be omitted.

[0037] In step S30, the terrain information generation unit 502 generates terrain information based on the measurement data collected in step S10 and further selected in step S20. Here, for the area of ​​the entire work site represented by the collected measurement data, the terrain of that area is represented as a 3D model, as shown in the screen of Figure 3, for example, and each grid 31 is color-coded according to its construction status, thereby generating terrain information.

[0038] In step S40, it is determined whether the terrain information generated in step S30 includes the locked range stored in the terrain information data 513. The locked range is the range in which the terrain information update unit 504 is prohibited from updating the terrain information, and is set by the process shown in Figure 6, which will be described later. For example, the range in which progress reports have already been created at the work site, or a range arbitrarily specified by the user, can be set as the locked range. If the result of the determination in step S40 includes the locked range, the process proceeds to step S50; otherwise, step S50 is skipped and the process proceeds to step S60.

[0039] In step S50, the terrain information within the locked area generated in step S30 is excluded from subsequent processing. As a result, the area corresponding to the locked area at the work site is excluded from the terrain information update, and the existing terrain information is retained. In the following explanation, the processing from step S60 onward will be described excluding the terrain information excluded in step S50.

[0040] In step S60, the terrain comparison unit 503 compares the terrain information generated in step S30 with the design data 512 stored in the data storage unit 510. Here, the terrain of the work site after construction, as represented by the design data 512, is compared with the generated terrain information, and the difference between them (degree of excess or deficiency in excavation volume) is calculated.

[0041] In step S70, the display format of each grid 31 in the terrain information generated in step S30 is set based on the comparison results of step S60. Specifically, as illustrated in Figure 3, for example, the color coding of each grid 31 is set according to the difference value calculated in step S60. In this case, it is preferable to set different colors when the amount of excavation is insufficient, i.e., when the current terrain has not reached the terrain indicated by the design value (when the difference in terrain information from the design value is on the positive side), and when the amount of excavation is excessive, i.e., when the current terrain has been excavated beyond the terrain indicated by the design value (when the difference in terrain information from the design value is on the negative side).

[0042] In step S80, the terrain information update unit 504 updates the terrain information data. Here, the terrain information data 513 stored in the data storage unit 510 is updated by replacing the portion of the terrain information created by the terrain information generation unit 502 in step S30 and linking it with the other portions. At this time, the display format of each grid 31 in the replaced portion is set to the display format set in step S70.

[0043] As described above, in the construction management device 50, the measurement data collection unit 501, the terrain information generation unit 502, the terrain comparison unit 503, and the terrain information update unit 504 execute the processes of steps S10 to S80 at predetermined processing cycles (e.g., every 10 minutes). As a result, each time the measurement data collection unit 501 collects measurement data, the terrain information generation unit 502 can generate terrain information for the area including the measurement target surface based on the point cloud data in the collected measurement data. Furthermore, each time the terrain information generation unit 502 generates terrain information for that area, the terrain information update unit 504 can update the terrain information for the entire work site. In this way, when measurement data is collected periodically in the construction management device 50, the terrain information data 513 representing the terrain information of the entire work site can be updated in real time by immediately reflecting the terrain information represented by that measurement data.

[0044] In step S90, the warning unit 505 determines, based on the comparison results from step S60, whether or not there is a grid subject to warning in the terrain information generated in step S30. Here, it is determined whether or not there is a grid where the negative excavation amount is greater than or equal to a predetermined value among the differences between the terrain information calculated for each grid in step S60 and the design value. If, as a result, there is a grid where the negative excavation amount is greater than or equal to a predetermined value, i.e., the degree of over-excavation relative to the design value is greater than or equal to a predetermined value, then that grid corresponds to the aforementioned over-excavation area, and it is determined that there is a grid subject to warning, and the process proceeds to step S100. On the other hand, if there are no grids where the negative excavation amount is greater than or equal to a predetermined value, it is determined that there is no grid subject to warning, and the process shown in the flowchart of Figure 5 is terminated.

[0045] In step S100, the warning unit 505 outputs a warning to the user for the warning target grid identified in step S90. As mentioned above, the warning is issued to the operator or manager, for example, by displaying a predetermined warning screen or outputting a warning sound on the in-vehicle monitor 30 or management terminal 40. At this time, the warning in step S100 may be issued when the hydraulic excavator 100 that performed excavation work in the warning target grid, which is an area of ​​excessive excavation, moves more than a predetermined distance away from the warning target grid. In this way, it is possible to effectively prevent areas of excessive excavation from being left unattended at the work site. After outputting the warning in step S100, the process shown in the flowchart of Figure 5 is terminated.

[0046] Figure 6 is a flowchart showing the processing flow executed when creating a construction progress report in a construction management device 50 according to one embodiment of the present invention. The construction management device 50 executes the processing shown in the flowchart of Figure 6, for example, at predetermined processing cycles.

[0047] In step S110, it is determined whether or not there is a request for output of the completion report. If the administrator has not instructed the construction management device 50 to create the completion report using the management terminal 40 or input / output device 55, it is determined that there is no request for output of the completion report and the process remains at step S110. If the administrator has instructed the creation of the completion report, it is determined that there is a request for output of the completion report and the process proceeds to step S120.

[0048] In step S120, the user interface unit 507 accepts the administrator's specification of the output range for the completion report. The administrator can specify any range within the work site as the output range for the completion report by operating the management terminal 40 or the input / output device 55. Once the administrator has specified the output range for the completion report, the process proceeds to the next step S130.

[0049] In step S130, the completion report creation unit 506 creates a completion report for the output range specified by the administrator in step S120. Here, for example, the unit reads the terrain information for the specified output range from the terrain information data 513 stored in the data storage unit 510, and obtains the comparison result of the terrain comparison unit 503 for that terrain information. Then, by compiling this information into a prescribed format, the completion report can be created. The information of the completion report created in step S130 is stored in the data storage unit 510 as completion report data 514 and can be read at any time according to the administrator's instructions.

[0050] In step S140, the output range specified by the administrator in step S120 and from which the completion report was created in step S130 is set as the aforementioned lock range. The information of the lock range set here is stored in the data storage unit 510 as part of the terrain information data 513 and is used for the determination in step S40 in Figure 5. Once the lock range is set in step S140, the process shown in the flowchart of Figure 6 is terminated.

[0051] According to the embodiments of the present invention described above, the following effects and advantages are achieved.

[0052] (1) The construction management device 50 includes: a measurement data collection unit 501 that collects measurement data transmitted from a measurement device 20 that measures the terrain of the work site, which includes point cloud data representing the coordinate values ​​of each measurement point on the measurement target surface in the terrain; a terrain information generation unit 502 that generates terrain information for an area including the measurement target surface based on the point cloud data in the measurement data collected by the measurement data collection unit 501; and a terrain information update unit 504 that updates the terrain information of the work site based on the terrain information for the area generated by the terrain information generation unit 502. The terrain information generation unit 502 generates terrain information for the area based on the point cloud data in the collected measurement data each time the measurement data collection unit 501 collects measurement data (step S30). The terrain information update unit 504 updates the terrain information of the work site each time the terrain information generation unit 502 generates terrain information for the area (step S80). In this way, each time measurement data is collected, the terrain information of the work site can be updated immediately to reflect the terrain information represented by that measurement data. Therefore, managers can grasp the terrain of the work site in real time and perform accurate progress management.

[0053] (2) The measuring device 20 can transmit measurement data at a predetermined collection cycle. In this case, the measurement data collection unit 501 can collect measurement data at predetermined collection cycles by receiving the measurement data transmitted from the measuring device 20 at that collection cycle. Alternatively, the measuring device 20 can transmit measurement data continuously. In this case, the measurement data collection unit 501 can collect the measurement data transmitted continuously from the measuring device 20 in batches at predetermined collection cycles. In either case, the construction management device 50 can collect measurement data at predetermined collection cycles, for example, every 10 minutes.

[0054] (3) The construction management device 50 includes a construction progress report creation unit 506 that creates a progress report for any output range within the work site based on the topographic information of the work site. The topographic information update unit 504 determines that the output range for which a progress report has been created by the construction progress report creation unit 506 is a locked range (step S40) and excludes it from subsequent topographic information updates (step S50). In this way, it is possible to prevent the topographic information from being mistakenly updated for completed areas at the work site for which a progress report has already been created.

[0055] (4) In addition, the terrain information update unit 504 also excludes the lock range specified by the user within the work site from subsequent terrain information updates (step S50). This prevents the terrain information from being mistakenly updated in an area arbitrarily specified by the user within the work site.

[0056] (5) The construction management device 50 includes a terrain comparison unit 503 that compares terrain information of the area generated by the terrain information generation unit 502 with predetermined design data of the work site, and a warning unit 505 that issues a warning to at least one of the operators of the work machinery operating at the work site and the site manager based on the results of the comparison by the terrain comparison unit 503. Specifically, the warning unit 505 determines whether there is an area of ​​excessive excavation at the work site based on the results of the comparison by the terrain comparison unit 503 (step S90), and issues a warning if it determines that an area of ​​excessive excavation exists (step S100). In this way, if there is an area of ​​excessive excavation that is problematic in civil engineering work, the operators of the work machinery and the site manager can be alerted.

[0057] (6) If the warning unit 505 determines that there is an area of ​​excessive excavation (step S90: Yes), it may be configured in step S100 to issue a warning when the work machine has moved a predetermined distance or more away from the area of ​​excessive excavation. This can effectively prevent areas of excessive excavation at the work site from being left unattended.

[0058] In the above embodiment, a hydraulic excavator 100 was described as an example of a work machine that operates at a work site and is equipped with the measuring device 20, but other work machines may also be used. The measuring device 20 can be mounted and used on any work machine used at a work site. Alternatively, the measuring device 20 may be used without being mounted on a work machine.

[0059] Although embodiments of the present invention have been described in detail above, the present invention is not limited to the embodiments described above, and various design modifications can be made without departing from the spirit of the invention as described in the claims. For example, the embodiments described above are described in detail in order to explain the present invention in an easy-to-understand manner, and are not necessarily limited to those having all the configurations described. Furthermore, it is possible to replace a part of the configuration of one embodiment with the configuration of another embodiment, and it is also possible to add a configuration of another embodiment to the configuration of one embodiment. Moreover, it is possible to add, delete, or replace a part of the configuration of each embodiment with other configurations. [Explanation of Symbols]

[0060] 20: Measuring device 30: In-car monitor 40: Management terminal 50: Construction management device 60: Public communication lines 100: Hydraulic excavator 501: Measurement Data Collection Department 502: Terrain information generation section 503: Topography Comparison Section 504: Terrain information update department 505: Warning section 506: Department for Creating Progress Reports 507: User Interface Department 510: Data storage unit 511: Measurement data 512: Design data 513: Topographic information data 514: Progress report data

Claims

1. A measurement data collection unit collects measurement data transmitted from a measuring device that measures the terrain of a work site, which includes point cloud data representing the coordinate values ​​of each measurement point on the surface to be measured in the terrain. A topographic information generation unit generates topographic information for a region including the measurement target surface based on the point cloud data in the measurement data collected by the measurement data collection unit, The system includes a terrain information updating unit that updates the terrain information of the work site based on the terrain information of the area generated by the terrain information generation unit, The terrain information generation unit generates terrain information for the region based on the point cloud data in the collected measurement data each time the measurement data collection unit collects the measurement data. The terrain information update unit updates the terrain information of the work site each time the terrain information generation unit generates terrain information for the area. An information processing device characterized by the following:

2. In the information processing apparatus according to claim 1, The measurement data acquisition unit receives the measurement data transmitted from the measurement device at a predetermined acquisition cycle, and acquires the measurement data at each acquisition cycle. An information processing device characterized by the following:

3. In the information processing apparatus according to claim 1, The measurement data acquisition unit collects the measurement data transmitted continuously from the measurement device in batches at predetermined collection cycles. An information processing device characterized by the following:

4. In the information processing apparatus according to claim 1, The system includes a construction progress report creation unit that creates a construction progress report for an arbitrary output range within the work site based on the topographic information of the work site, The terrain information update unit excludes the output range for which the construction report has been created by the construction report creation unit from subsequent terrain information updates. An information processing device characterized by the following:

5. In the information processing apparatus according to claim 1, The terrain information update unit excludes the lock range specified by the user within the work site from subsequent terrain information updates. An information processing device characterized by the following:

6. In the information processing apparatus according to claim 1, A terrain comparison unit that compares the terrain information of the aforementioned area with the design data of the predetermined work site, The system includes a warning unit that, based on the results of the comparison by the terrain comparison unit, issues a warning to at least one of the operators of the work machinery operating at the work site and the manager of the work site. An information processing device characterized by the following:

7. In the information processing apparatus described in claim 6, The warning unit determines, based on the results of the comparison, whether or not there is an area of ​​excessive excavation at the work site, and issues the warning if it determines that such an area of ​​excessive excavation exists. An information processing device characterized by the following:

8. In the information processing apparatus according to claim 7, The warning unit, when it determines that an area of ​​excessive excavation exists, issues a warning when the work machine moves a predetermined distance or more away from the area of ​​excessive excavation. An information processing device characterized by the following:

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