Information processing device, road surface paving system, road machine, and program

Abstract

The invention provides an information processing device, a road surface paving system, a road machine and a program, which can determine construction objects of the road machine with high precision. The information processing device is provided with: a determination unit configured so as to determine, on the basis of information relating to the operating speed of the road machine, a range excluded from the construction objects of the road machine due to a change in shape of the end of the road surface, which is the construction object of the road machine; and a correction unit configured to correct the range of the road surface, which is the construction object, on the basis of the range specified by the specification unit.

Description

[0001] This application claims priority based on Japanese Patent Application No. 2023-200847 filed on November 28, 2023. The entire content of the Japanese application is incorporated herein by reference. Technical Field

[0002] The present invention relates to an information processing device, a road paving system, a road machine, and a program. Background Art

[0003] Conventionally, an asphalt paver is known, which includes: a tractor; a hopper provided on the front side of the tractor for receiving paving material; a conveyor for conveying the paving material in the hopper to the rear side of the tractor; a screw for spreading the paving material conveyed by the conveyor and scattered on the road surface in the vehicle width direction at the rear side of the tractor; and a finisher for leveling the paving material spread by the screw at the rear side of the screw.

[0004] For example, Patent Document 1 describes an asphalt paver including a control device that generates a target line based on changes in above-ground objects within a specified range on the ground of a construction target and controls the tractor based on the target line.

[0005] Patent Document 1: Japanese Unexamined Patent Application Publication No. 2023-154940

[0006] However, depending on the shape of the road surface as a construction target, there may be a range where it is difficult to perform construction with a road machine. Summary of the Invention

[0007] An object of one aspect of the present invention is to accurately determine a construction target of a road machine.

[0008] An information processing device according to one aspect of the present invention includes: a determination unit configured to determine a range excluded from the construction target of a road machine due to a change in the shape of the end of a road surface, which is the construction target of the road machine, based on information related to the operating speed of the road machine; and a correction unit configured to correct the range of the road surface, which is the construction target, based on the range determined by the determination unit.

[0009] Advantages of the Invention

[0010] According to one aspect of the present invention, it is possible to accurately determine a construction target of a road machine. Brief Description of the Drawings

[0011] Figure 1 It is a schematic diagram showing an example of the overall structure of a road paving system according to the first embodiment.

[0012] Figure 2 It is a side view showing an example of an asphalt paver according to the first embodiment.

[0013] Figure 3 It is a top view showing an example of an asphalt rolling machine according to the first embodiment.

[0014] Figure 4 It is a rear view showing an example of an asphalt rolling machine according to the first embodiment.

[0015] Figure 5 It is a block diagram showing an example of the hardware structure of a remote management device according to the first embodiment.

[0016] Figure 6 It is a block diagram showing an example of the functional structure of a road paving system according to the first embodiment.

[0017] Figure 7 It is a diagram showing an example of design data before correction according to the first embodiment.

[0018] Figure 8 It is a diagram showing an example of design data after correction according to the first embodiment.

[0019] Figure 9 It is a timing chart showing an example of correction processing according to the first embodiment.

[0020] Figure 10 It is a block diagram showing an example of the functional structure of an asphalt rolling machine according to the second embodiment.

[0021] Figure 11 It is a block diagram showing an example of the functional structure of a road paving system according to the third embodiment.

[0022] Figure 12 It is a flowchart showing an example of re - correction processing according to the third embodiment.

[0023] In the figure: 1 - tractor, 2 - hopper, 3 - leveling machine, 46 - measuring device, 47 - traveling speed sensor, 48 - auxiliary storage device, 50 - controller, 51 - imaging device, 53 - communication device, 54 - drive system controller, 55 - leveling machine control device, 100 - asphalt rolling machine, 101 - communication control section, 102 - acquisition section, 103 - movement control section, 104 - leveling machine control section, 200 - communication terminal, 300 - remote management device, 301 - design data storage section, 302 - machine data storage section, 303 - acquisition section, 304 - determination section, 305 - correction section, 306 - storage control section, 307 - communication control section, 308 - display control section, CV - conveyor, SC - screw, SYS - road paving system. Detailed implementation manners

[0024] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. Note that the embodiments described below are illustrative rather than restrictive, and all features and combinations thereof described in the embodiments are not necessarily essential to the invention. In addition, in each of the drawings, the same or corresponding reference numerals may be assigned to the same or corresponding structures, and the description thereof may be omitted.

[0025] [First Embodiment]

[0026] The first embodiment of the present invention is a road paving system for paving a road surface using an asphalt paver. The asphalt paver according to this embodiment has an automatic paving function for automatically paving the road surface while automatically controlling the tractor and automatically extending and retracting the screed.

[0027] In the automatic paving function of the asphalt paver, design data representing the scope of the road surface to be constructed, i.e., the construction object, is used. The design data includes linear data representing the shape of the road and cross-sectional shape data. The controller of the asphalt paver extracts the travel path and the shape of the road surface end from the design data. Then, while correcting the errors between the detection results of the vehicle state and vehicle position and the extracted information, the controller of the asphalt paver controls the operation of the tractor and the extension and retraction of the screed, etc., thereby realizing the automatic paving function.

[0028] However, in the shape of the end of a normal road, there are areas that are difficult to construct with an asphalt paver. For example, if there is a protruding part such as a stormwater well provided on the curb that protrudes toward the road side, areas that are difficult to construct with an asphalt paver are formed on the front side and the inner side with respect to the vehicle travel direction. Moreover, such difficult-to-construct areas are sometimes not reflected in the design data. Therefore, a function for correcting the design data into a shape that can be constructed with an asphalt paver is required.

[0029] <Overall Structure of the Road Paving System>

[0030] Refer to Figure 1 , and the overall structure of the road paving system SYS according to the first embodiment will be described. Figure 1 is a schematic diagram showing an example of the overall structure of the road paving system according to the first embodiment.

[0031] As Figure 1 shown, the road paving system SYS according to the first embodiment includes an asphalt paver 100, a communication terminal 200, and a remote management device 300. The asphalt paver 100 and the remote management device 300 are connected via a public network NT.

[0032] Further, for example, the road surface paving system SYS can perform various settings related to the control of the asphalt paver 100 in the communication terminal 200 according to an input from a user or automatically, and send them to the asphalt paver 100. Thereby, various operations of the asphalt paver 100 can be controlled or monitored from the communication terminal 200.

[0033] Further, the asphalt paver 100 can also send information indicating the current status to any one or more of the communication terminal 200 and the remote management device 300. Moreover, the asphalt paver 100 can send log information indicating the paving result of the road surface to any one or more of the communication terminal 200 and the remote management device 300.

[0034] The remote management device 300 is set as a terminal provided for remote management of the work site. For example, the remote management device 300 manages the construction status by storing the log information sent from the asphalt paver 100.

[0035] The communication terminal 200 is, for example, set as a terminal held by a user who manages work at the work site or a user who performs work at the work site. In the present embodiment, the communication terminal 200 is a portable information terminal such as a smart phone or a tablet terminal. The communication terminal 200 receives image information indicating the current construction state of the asphalt paver 100 from the asphalt paver 100 and displays it on a display device (for example, a liquid crystal panel). Thereby, the user who manages work at the work site can recognize the current construction state of the asphalt paver 100.

[0036] The number of communication terminals 200 included in the road surface paving system SYS can be one or more. Thereby, the road surface paving system SYS can provide information related to the asphalt paver 100 to a plurality of users who use them respectively through the plurality of communication terminals 200.

[0037] The number of asphalt pavers 100 included in the road surface paving system SYS can be one or more. Thereby, the road surface paving system SYS can perform data collection on the asphalt paver 100, provide information to users based on the collected data, perform settings related to the control of the asphalt paver 100, and the like.

[0038] <Summary of the asphalt paver>

[0039] Reference Figures 2 to 4 , the summary of the asphalt paver 100 as an example of the road machinery according to the first embodiment will be described. Figure 2 is a side view showing an example of the asphalt paver according to the first embodiment. Figure 3 is a top view showing an example of the asphalt paver according to the first embodiment. Figure 4It is a rear view showing an example of the asphalt leveling machine according to the first embodiment.

[0040] The asphalt leveling machine 100 mainly consists of a tractor 1, a hopper 2, and a leveling machine 3.

[0041] The tractor 1 is a device for moving the asphalt leveling machine 100 and also pulls the leveling machine 3. In this embodiment, the tractor 1 uses a hydraulic motor for traveling to rotate two or four wheels to move the asphalt leveling machine 100. The hydraulic motor for traveling receives the supply of working oil from a hydraulic pump driven by an engine such as a diesel engine and rotates. A driver's seat 1S and an operation panel 65 are arranged on the upper part of the tractor 1.

[0042] A camera device 51 is installed on the tractor 1. The camera device 51 includes a right camera 51R installed on the right side, a left camera 51L installed on the left side, and a front camera 51F installed on the front. A display device 52 is provided at a position where it is easily visually recognizable to the driver sitting on the driver's seat 1S. In this embodiment, the direction of the hopper 2 observed from the tractor 1 is set as the front (+X direction), and the direction of the leveling machine 3 observed from the tractor 1 is set as the rear (-X direction). The +Y direction corresponds to the left direction, and the -Y direction corresponds to the right direction.

[0043] The hopper 2 is a mechanism for receiving paving materials (for example, asphalt mixture). The working device is a device for supplying paving materials to the front of the leveling machine 3. In this embodiment, the hopper 2 is configured to be able to open and close in the vehicle width direction by a hydraulic cylinder. The asphalt leveling machine 100 usually keeps the hopper 2 in a fully open state to receive paving materials from the carriage of a dump truck. Moreover, when the paving materials in the hopper 2 decrease, the hopper 2 is closed, and the paving materials near the inner wall of the hopper 2 are concentrated to the central part of the hopper 2, so that the conveyor CV can convey the paving materials to the leveling machine 3.

[0044] The conveyor CV is driven by a hydraulic motor that receives the supply of working oil from a hydraulic pump. In this embodiment, the conveyor CV is configured to convey the paving materials in the hopper 2 to the rear side of the tractor 1 via a conveying passage. The conveying passage is a substantially rectangular parallelepiped-shaped space formed inside the tractor 1, and has a substantially rectangular inlet opening into the hopper 2 on the front surface of the tractor 1.

[0045] The screw SC is driven by a hydraulic motor that receives the supply of working oil from a hydraulic pump. In this embodiment, the screw SC includes a central screw (not shown), a left screw, and a right screw. The central screw is provided within the width of the tractor 1. The left screw is arranged to be connected to the left end of the central screw and protrude from the width of the tractor 1 to the left side. The right screw is arranged to be connected to the right end of the central screw and protrude from the width of the tractor 1 to the right side.

[0046] The screed 3 is a mechanism for evenly spreading the paving material. In the present embodiment, the screed 3 is configured to be able to be raised and lowered in the vertical direction and to be able to be extended and retracted in the vehicle width direction by means of a hydraulic cylinder. The width of the screed 3 is greater than the width of the tractor 1 when it is extended in the vehicle width direction. In the present embodiment, the screed 3 includes a main screed 30, a left telescopic screed 31L, and a right telescopic screed 31R. The left telescopic screed 31L and the right telescopic screed 31R are configured to be able to be extended and retracted in the vehicle width direction (Y-axis direction). Moreover, the left telescopic screed 31L and the right telescopic screed 31R that can be extended and retracted in the vehicle width direction are offset from each other in the traveling direction (X-axis direction). Therefore, it is possible to have a longer width (length in the vehicle width direction) than when it is not offset, and it is possible to further extend in the vehicle width direction, so that a wider new paving body can be constructed.

[0047] The controller 50 is a control unit for controlling the asphalt roller 100. The controller 50 is, for example, a computer including a CPU (Central Processing Unit), a volatile memory, a non-volatile memory, etc. The controller 50 is a computer including a CPU and a RAM (Random Access Memory), and is mounted on the tractor 1. Various functions of the controller 50 are realized by, for example, the CPU executing a program stored in the auxiliary storage device 48.

[0048] The auxiliary storage device 48 is a device for storing various information. In the present embodiment, the auxiliary storage device 48 is a nonvolatile memory and is incorporated in the controller 50. However, the auxiliary storage device 48 may be arranged outside the controller 50 as a structure different from the controller 50.

[0049] The tractor 1 is equipped with a camera 51. The camera 51 is configured to obtain information related to the space around the asphalt roller 100, and can output the obtained information to the controller 50. In the present embodiment, the camera 51 includes a front camera 51F, a left camera 51L, and a right camera 51R. The camera 51 can be installed at a position other than the right side, the left side, and the front of the tractor 1 (for example, the rear). The camera 51 can be installed on a wide-angle lens or a fisheye lens. The camera 51 can be installed on the hopper 2 or on the leveler 3.

[0050] The imaging device 51 according to this embodiment is, for example, a camera equipped with an imaging element such as a CCD (Charge Coupled Device) or a CMOS (Complementary Metal-Oxide-Semiconductor). The imaging device 51 only needs to be a space recognition device that can recognize the space based on the asphalt paver 100. For example, LiDAR (Light Detection and Ranging) can be used.

[0051] As Figure 2 and Figure 3 shown, the front camera 51F is installed at the upper front part of the tractor 1, and is installed such that its optical axis 51FX extends forward in the traveling direction, and forms an angle α with the road surface in a side view. As Figures 2 to 4 shown, the left camera 51L is installed at the upper left part of the tractor 1, and is installed such that its optical axis 51LX forms an angle β with the left side surface of the tractor 1 in a top view, and forms an angle γ with the road surface in a rear view. Regarding the right camera 51R, the left and right are reversed, and it is installed in the same manner as the left camera 51L.

[0052] Figure 3 The area 51FA surrounded by the dashed line of Figure 3 represents the imaging range of the front camera 51F, the area 51LA surrounded by the dash-dotted line represents the imaging range of the left camera 51L, and the area 51RA surrounded by the dash-dotted line represents the imaging range of the right camera 51R.

[0053] The imaging device 51 is installed on the asphalt paver 100 via, for example, a bracket, a strut, a rod, etc. In this embodiment, the imaging device 51 is installed on the tractor 1 via the mounting strut. However, the imaging device 51 can be directly installed on the tractor 1 without passing through the mounting strut, or can be buried in the tractor 1.

[0054] In this embodiment, the imaging device 51 outputs the acquired input image to the controller 50. When an input image is acquired using a fish-eye lens or a wide-angle lens, the imaging device 51 can output the corrected input image, which has corrected the appearance distortion or skew generated by using these lenses, to the controller 50. Alternatively, the input image without correcting the appearance distortion or skew can be output to the controller 50 as it is. At this time, the appearance distortion or skew is corrected by the controller 50.

[0055] The display device 52 is a device for displaying various information. In this embodiment, the display device 52 is a liquid crystal display provided on the operation panel 65, and displays various images output by the controller 50.

[0056] The fixing plate 70 is a plate-shaped member for preventing the paving material sent in the vehicle width direction by the screw SC from scattering in front of the screw SC so that the paving material is accurately sent in the vehicle width direction by the screw SC.

[0057] The side plate 71 is also installed at the distal end of the shaping plate 72. The shaping plate 72 is a member for adjusting the amount of the paving material staying in front of the left telescopic leveling machine 31L and the right telescopic leveling machine 31R among the paving materials spread by the screw SC, and is configured to be able to expand and contract in the vehicle width direction together with the left telescopic leveling machine 31L and the right telescopic leveling machine 31R.

[0058] <Computer>

[0059] The controller 50 of the asphalt rolling machine 100, the communication terminal 200, and the remote management device 300 are realized by a computer, for example. Figure 5 It is a block diagram showing an example of the hardware configuration of the computer according to the first embodiment.

[0060] As Figure 5 shown, the computer 500 has a CPU (Central Processing Unit) 501, a ROM (Read Only Memory), a RAM (Random Access Memory) 503, an HDD (Hard Disk Drive) 504, an input device 505, a display device 506, a communication I / F (Interface) 507, and an external I / F 508. The CPU 501, the ROM 502, and the RAM 503 form a so-called computer. Each hardware of the computer 500 is interconnected via a bus 509. In addition, the input device 505 and the display device 506 may also be connected to the external I / F 508 for use.

[0061] The CPU 501 is an arithmetic device that realizes the overall control or functions of the computer 500 by reading programs or data from storage devices such as the ROM 502 or the HDD 504 onto the RAM 503 and executing processing. In addition to or instead of the CPU 501, the computer 500 may have a GPU (Graphics Processing Unit).

[0062] ROM502 is an example of a non-volatile semiconductor memory (storage device) that can store programs or data even when the power is turned off. ROM502 functions as a main storage device that stores various programs, data, etc. required for the CPU501 to execute various programs installed in the HDD504. Specifically, in ROM502, there are stored boot programs such as BIOS (Basic Input / Output System) and EFI (Extensible Firmware Interface) that are executed when the computer 500 starts up, as well as data such as OS (Operating System) settings and network settings.

[0063] RAM503 is an example of a volatile semiconductor memory (storage device) in which programs or data are deleted when the power is turned off. RAM503 is, for example, DRAM (Dynamic Random Access Memory) or SRAM (Static Random Access Memory). RAM503 provides a working area that is expanded when the CPU501 executes various programs installed in the HDD504.

[0064] HDD504 is an example of a non-volatile storage device that stores programs or data. Among the programs or data stored in the HDD504 are an OS, which is basic software for controlling the entire computer 500, and applications that provide various functions on the OS. In addition, the computer 500 can also use a storage device (such as an SSD: Solid State Drive) that uses a flash memory as a storage medium instead of the HDD504.

[0065] The input device 505 is a touch panel, operation keys or buttons, a keyboard or mouse, a microphone that inputs voice data such as various signals for user input.

[0066] The display device 506 is composed of a display such as a liquid crystal or an organic EL (Electro-Luminescence) that displays a screen, a speaker that outputs voice data such as voice, etc.

[0067] The communication I / F 507 is an interface that connects to a communication network and is used for the computer 500 to perform data communication.

[0068] The external I / F 508 is an interface to an external device. Among the external devices is a drive device 510, etc.

[0069] The drive device 510 is a device for setting the recording medium 511. Among the recording media 511 mentioned here, there are media that optically, electrically, or magnetically record information, such as CD-ROMs, floppy disks, magneto-optical disks, etc. Also, among the recording media 511, there may be semiconductor memories, such as ROMs and flash memories, that electrically record information. Thus, the computer 500 can read and / or write to the recording medium 511 via the external I / F 508.

[0070] In addition, various programs installed in the HDD 504 are installed, for example, by setting the distributed recording medium 511 in the drive device 510 connected to the external I / F 508 and having the drive device 510 read the various programs recorded in the recording medium 511. Or, various programs installed in the HDD 504 can be installed by downloading them via the communication I / F 507 from another network different from the communication network.

[0071] <Functional Structure of Road Pavement System>

[0072] Reference Figure 6 , the functional structure of the road pavement system SYS will be described. Figure 6 is a block diagram showing an example of the functional structure of the road pavement system according to the first embodiment.

[0073] <<Remote Management Device>>

[0074] As Figure 6 shown, the remote management device 300 includes a design data storage unit 301, a mechanical data storage unit 302, an acquisition unit 303, a determination unit 304, a correction unit 305, a storage control unit 306, a communication control unit 307, and a display control unit 308.

[0075] In the design data storage unit 301, design data indicating the range of the road surface, which is the construction object of the asphalt paver 100, is stored. The design data includes linear data indicating the shape of the road and cross-sectional shape data. In other words, the shape of the end of the road surface, which is the construction object, is shown in the design data.

[0076] In the mechanical data storage unit 302, mechanical data related to the asphalt paver 100 is stored. The mechanical data can be prepared for each body of the asphalt paver 100 or for each model of the asphalt paver 100. In the present embodiment, the mechanical data includes information related to the operating speed of the asphalt paver 100 and information related to the shape of the asphalt paver 100. The information related to the operating speed includes the traveling speed of the asphalt paver 100 and the telescopic speed of the finisher. The information related to the shape includes the shape of the finisher. The traveling speed of the asphalt paver 100 is the speed when the asphalt paver 100 travels while paving the road surface through the automatic paving function.

[0077] The design data and the mechanical data may be data that is transmitted through a wired or wireless interface from design data and mechanical data previously generated by an external device to the remote management device 300 and stored. Also, the design data and the mechanical data may be data that is read from a portable storage medium into the remote management device 300 and stored.

[0078] The acquisition unit 303 acquires the design data and the mechanical data. In the present embodiment, the acquisition unit 303 reads the design data from the design data storage unit 301. Also, the acquisition unit 303 reads the mechanical data from the mechanical data storage unit 302.

[0079] The determination unit 304 determines a range to be excluded from the construction target of the asphalt paver 100 (hereinafter referred to as "construction exclusion range") based on the design data and the mechanical data acquired by the acquisition unit 303. In the present embodiment, the determination unit 304 determines, based on the shape change of the end portion of the road surface represented by the design data, the range of the road surface that is difficult to be constructed by the asphalt paver 100 as the construction exclusion range.

[0080] Specifically, the determination unit 304 determines the construction exclusion range based on the shape of the end portion of the road surface, the traveling speed of the asphalt paver 100, and the telescopic speed of the leveling machine 3. In addition, the traveling speed of the asphalt paver 100 may vary depending on the state of the road surface, which is the construction target. Therefore, the determination unit 304 may adjust the traveling speed of the asphalt paver 100 according to the road surface of the construction target represented by the design data.

[0081] More specifically, the determination unit 304 determines a portion where the speed of change of the shape of the end portion of the road surface in the left-right direction is greater than the telescopic speed of the leveling machine 3. Figure 7 is a diagram showing an example of the design data before correction. As Figure 7 shown, in the design data before correction, the road surface 600, which is the construction target, is shown. The road surface 600 is a range sandwiched between the left end portion 601 and the right end portion 602. The shape of the left end portion 601 is defined by passing points P11 to P16. Similarly, the shape of the right end portion 602 is defined by passing points P21 to P24.

[0082] In Figure 7 the example shown, a stormwater well 603 is provided on the road curb of the road surface 600. Since the stormwater well 603 protrudes toward the road side, the left end portion 601 changes significantly in the left-right direction with respect to the traveling direction of the asphalt paver 100 at the passing points P12, P13, P14, and P15. In order to construct the road surface 600 having such a left end portion 601, it is necessary to reduce the left telescopic leveling machine 31L to the passing point P13 at the position of the passing point P12 and extend the left telescopic leveling machine 31L to the passing point P15 at the position of the passing point P14.

[0083] However, the asphalt rolling machine 100 stopping during construction will affect the construction quality, so it is not preferred. Also, since the telescoping speed of the leveling machine 3 is limited, it is difficult to instantaneously telescope at the position passing through point P12 or point P14. Therefore, in Figure 7 the design data shown, it is necessary to set construction exclusion ranges R1 and R2 in the front side and the inner side of the manhole 603.

[0084] The construction exclusion range R1 is the range where the left telescoping leveling machine 31L does not evenly spread the paving material (i.e., does not construct) when the left telescoping leveling machine 31L is telescoped in to complete the reduction at the passing point P13. Similarly, the construction exclusion range R2 is the range where the left telescoping leveling machine 31L does not evenly spread the paving material (i.e., does not construct) when the left telescoping leveling machine 31L starts to extend at the passing point P14.

[0085] In addition, since the construction exclusion ranges R1 and R2 are not constructed by the asphalt rolling machine 100, it is necessary for the workers at the job site to construct manually. When constructing manually, the paving material in the hopper 2 of the asphalt rolling machine 100 or around the screw SC is used. Therefore, as long as the design data indicating the construction exclusion range can be confirmed at the job site, the workers can wait in advance at the position of manual construction, or the user giving instructions at the job site can give appropriate instructions at the job site. Also, the range constructed manually tends to be easily damaged, so if the design data indicating the construction exclusion range is stored and managed for future reference, it is useful for quality control or maintenance management.

[0086] The correction unit 305 corrects the design data acquired by the acquisition unit 303 according to the construction exclusion range determined by the determination unit 304. Hereinafter, the design data corrected by the correction unit 305 is also referred to as "corrected data". In the present embodiment, the correction unit 305 generates the corrected data by excluding the construction exclusion range from the construction object represented by the design data.

[0087] Figure 8 is a diagram showing an example of the corrected design data. As Figure 8As shown, in the corrected design data, the passing point P12 where a large shape change occurs at the left end 601 due to the rainwater well 603 is corrected to the front side with respect to the traveling direction, and the passing point P15 is corrected to the inner side with respect to the traveling direction. In the corrected design data, the reduction of the left telescopic leveling machine 31L starts at the passing point P12, and the elongation of the left telescopic leveling machine 31L starts at the passing point P14. In other words, the correction unit 305 determines the points at which the left telescopic leveling machine 31L starts to expand and contract in order to exclude the construction exclusion ranges R1 and R2 from the construction range. As a result, the front construction exclusion range R1 and the inner construction exclusion range R2 of the rainwater well 603 are excluded from the construction target of the asphalt rolling machine 100.

[0088] The storage control unit 306 stores the corrected completed data corrected by the correction unit 305 in the design data storage unit 301. The storage control unit 306 stores the completed correction data together with the design data before correction acquired by the acquisition unit 303 in the design data storage unit 301. Further, the storage control unit 306 associates the date and time information with the completed correction data and stores it in the storage control unit 306 in chronological order. The date and time information can be, for example, information indicating the date and time when the completed correction data is generated, or information indicating the date and time when the construction is completed using the completed correction data. That is, the storage control unit 306 stores the completed correction data in the storage control unit 306. Thus, when referring to past design data, the user of the road paving system SYS can easily confirm the range excluded from the construction target (i.e., the range where construction has been carried out manually).

[0089] The communication control unit 307 sends the corrected completed data corrected by the correction unit 305 to the asphalt rolling machine 100. In the asphalt rolling machine 100, the communication control unit 101 of the controller 50 receives the completed correction data via the communication device 53 and stores the received completed correction data in the auxiliary storage device 48.

[0090] Further, the communication control unit 307 sends the corrected completed data corrected by the correction unit 305 to the communication terminal 200. The communication terminal 200 displays the completed correction data received from the remote management device 300 on the display device 506. In the present embodiment, the communication terminal 200 displays a map showing the construction target represented by the completed correction data (i.e., the construction target excluding the range determined by the determination unit 304) on the display device 506 of the communication terminal 200. Thus, the user of the communication terminal 200 can easily confirm the range excluded from the construction target.

[0091] The display control unit 308 displays the corrected data corrected by the correction unit 305 on the display device 506 according to the user's operation. In the present embodiment, the display control unit 308 displays a map showing the construction objects indicated by the corrected data (i.e., the construction objects excluding the range determined by the determination unit 304) on the display device 506 of the remote management device 300. Thus, the user of the remote management device 300 can easily confirm the range excluded from the construction objects.

[0092] <<Asphalt roller controller>>

[0093] like Figure 6 As shown, the controller 50 is connected to a measuring device 46 , a travel speed sensor 47 , an auxiliary storage device 48 , a camera device 51 , a communication device 53 , a drive system controller 54 and a leveling machine control device 55 .

[0094] The measuring device 46 receives a signal including time information from a positioning satellite and measures the current position of the asphalt roller 100. For example, the measuring device 46 receives position information indicating a two-dimensional or three-dimensional positioning result based on GPS (Global Positioning System) or GNSS (Global Navigation Satellite System). The position information includes information indicating the position of the asphalt roller 100 in terms of latitude and longitude. In addition, in the present embodiment, GPS is used as a method for obtaining position information, but the method for obtaining position information is not limited, and other known methods may also be used.

[0095] The travel speed sensor 47 is configured to detect the travel speed of the asphalt roller 100. For example, the travel speed sensor 47 is an encoder that detects the angular velocity of the rotation shaft of the rear wheel travel motor that drives the rear wheels of the tractor 1. The travel speed sensor 47 may be configured by a non-contact switch that detects a slit formed in a rotating plate.

[0096] Design data is stored in the auxiliary storage device 48. The design data stored in the auxiliary storage device 48 is corrected data corrected by the remote management device 300.

[0097] The communication device 53 wirelessly communicates with devices around the asphalt roller 100 or a server managing the work site. For example, the communication device 53 wirelessly communicates using one or more of Wi-Fi (registered trademark), wireless LAN, and Bluetooth (registered trademark) as wireless communication standards.

[0098] The drive system controller 54 controls the tractor 1 according to the control instructions. For example, the drive system controller 54 performs rotational control (speed control) of the rear-wheel travel motor of the tractor 1 and steering angle control of the front wheels (an example of drive wheels) of the tractor 1 based on the steering angle and speed indicated by the control instructions.

[0099] The finisher control device 55 is configured to control the expansion and contraction amounts of the left telescopic finisher 31L and the right telescopic finisher 31R. For example, the finisher control device 55 controls the flow rate of the working oil flowing into the finisher expansion and contraction cylinders (not shown) that expand and contract the left telescopic finisher 31L and the right telescopic finisher 31R respectively. The finisher control device 55 switches the connection to communicate or cut off the pipes between the rod side oil chamber of the finisher expansion and contraction cylinder and the hydraulic pump according to the control instructions from the controller 50. Thereby, the expansion and contraction of the left telescopic finisher 31L and the right telescopic finisher 31R can be achieved.

[0100] More specifically, the controller 50 has a communication control unit 101, an acquisition unit 102, a movement control unit 103, and a finisher control unit 104 as functional blocks constituted by software, hardware, or a combination thereof.

[0101] The communication control unit 101 controls the transmission and reception of information between the external device using the communication device 53. In the present embodiment, the communication control unit 101 transmits and receives information between the communication terminal 200 or the remote management device 300. In the present embodiment, the communication control unit 101 receives the calibration completed data from the remote management device 300. The communication control unit 101 stores the calibration completed data received from the remote management device 300 in the auxiliary storage device 48.

[0102] The acquisition unit 102 acquires the detection information from various sensors provided in the asphalt finisher 100. For example, the acquisition unit 102 acquires the image information captured by the imaging devices 51 (front camera 51F, left camera 51L, and right camera 51R). And, the acquisition unit 102 acquires the position information obtained by the positioning of the measuring device 46. And, the acquisition unit 102 acquires the detection information (for example, including the speed of the asphalt finisher 100) detected by the travel speed sensor 47. Moreover, the acquisition unit 102 reads the calibration completed data from the auxiliary storage device 48.

[0103] The movement control unit 103 outputs a control instruction for controlling the operation of the tractor 1 to the drive system controller 54. In the present embodiment, the movement control unit 103 extracts the travel path from the calibration completed data acquired by the acquisition unit 102 and outputs a control instruction indicating the steering angle and speed to the drive system controller 54 to move along the extracted travel path. Thereby, the controller 50 performs automatic movement control of the tractor 1 to perform the paving process along the travel path indicated by the calibration completed data.

[0104] The leveling machine control unit 104 outputs a control command for controlling the operation of the leveling machine 3 to the leveling machine control device 55. In the present embodiment, the leveling machine control device 55 extracts the shape of the end portion of the road surface from the calibration-completed data acquired by the acquisition unit 102, and outputs a control command indicating the expansion / contraction amounts of the left telescopic leveling machine 31L and the right telescopic leveling machine 31R to the leveling machine control device 55 so as to match the extracted shape of the end portion. Thereby, the controller 50 performs automatic expansion / contraction control of the leveling machine 3 to perform the paving process corresponding to the shape of the end portion of the road surface represented by the calibration-completed data.

[0105] <Calibration process>

[0106] Reference Figure 9 , the calibration process executed by the remote management device 300 will be described. Figure 9 is a timing chart showing an example of the calibration process according to the first embodiment. The calibration process is a process for calibrating design data.

[0107] In step S1, the acquisition unit 303 of the remote management device 300 reads the design data to be calibrated from the design data storage unit 301. The acquisition unit 303 can read the design data specified by the user, or can automatically select and read the uncalibrated design data. The acquisition unit 303 sends the read design data to the determination unit 304.

[0108] In step S2, the acquisition unit 303 of the remote management device 300 reads the mechanical data from the mechanical data storage unit 302. The acquisition unit 303 can read the mechanical data of the machine type or the machine body specified by the user, or can read the mechanical data of the asphalt rolling machine 100 used at the work site represented by the design data read in step S1. The acquisition unit 303 sends the read mechanical data to the determination unit 304.

[0109] In step S3, the determination unit 304 of the remote management device 300 receives the design data and the mechanical data from the acquisition unit 303. Then, the determination unit 304 determines the construction exclusion range based on the received design data and mechanical data. Moreover, the determination unit 304 sends the information indicating the design data and the construction exclusion range to the calibration unit 305. The information indicating the construction exclusion range is information capable of determining the position and shape of the construction exclusion range. For example, the information indicating the construction exclusion range is position information (such as latitude and longitude, etc.) defining the construction exclusion range.

[0110] In step S4, the calibration unit 305 of the remote management device 300 receives information indicating the construction exclusion range from the determination unit 304. Next, the calibration unit 305 calibrates the design data based on the information indicating the construction exclusion range to exclude the construction exclusion range from the construction object. Further, the calibration unit 305 sends the calibrated data to the storage control unit 306 and the communication control unit 307.

[0111] In step S5, the storage control unit 306 of the remote management device 300 receives the calibrated data from the calibration unit 305. Next, the storage control unit 306 stores the received calibrated data together with the design data read in step S1 in the design data storage unit 301. For example, after the design data read in step S1 is backed up, the calibrated data generated in step S4 is stored in the design data storage unit 301. Thus, both the design data representing the construction object before calibration and the calibrated data representing the construction exclusion range are stored in the design data storage unit 301.

[0112] In step S6, the communication control unit 307 of the remote management device 300 receives the calibrated data from the calibration unit 305. Next, the communication control unit 307 sends the received calibrated data to the asphalt paver 100.

[0113] In step S7, the communication control unit 101 of the controller 50 receives the calibrated data from the remote management device 300 through the communication device 53. Next, the communication control unit 101 stores the received calibrated data in the auxiliary storage device 48. When other design data (or calibrated data) is already stored in the auxiliary storage device 48, it can be overwritten with the received calibrated data, or the calibrated data can be stored after the original design data, etc. are backed up.

[0114] In step S8, the controller 50 starts the automatic paving control. Specifically, the acquisition unit 102 of the controller 50 reads the calibrated data from the auxiliary storage device 48. Next, the acquisition unit 102 acquires the detection results of various sensors. Then, the controller 50 performs automatic movement control of the movement control unit 103 and automatic telescopic control of the leveling machine control unit 104 based on the detection results of various sensors to perform construction on the range of the construction object (in other words, the range of the road surface excluding the construction exclusion range) represented by the calibrated data. Thus, the asphalt paver 100 can automatically pave the range of the road surface of the construction object excluding the construction exclusion range.

[0115] <Effect of the First Embodiment>

[0116] The remote management device 300 according to the present embodiment determines a range excluded from the construction object of the road machinery due to the shape change of the end portion of the road surface, which is the construction object of the road machinery, based on information related to the operating speed of the road machinery, and corrects the range of the construction object, that is, the road surface, according to the determined range. In one aspect, according to the present embodiment, the construction object of the road machinery can be determined with high accuracy.

[0117] The road machinery is equipped with a leveling machine that spreads the paving material scattered on the road surface evenly and is telescopic in the vehicle width direction. The remote management device 300 determines the range excluded from the construction object based on the shape of the end portion of the road surface, the traveling speed of the road machinery, the telescopic speed of the leveling machine, and the shape of the leveling machine. Therefore, according to the present embodiment, the range that is difficult to spread evenly by the leveling machine can be excluded from the construction object.

[0118] The remote management device 300 determines the position to start the telescoping of the leveling machine based on the range excluded from the construction object. Therefore, according to the present embodiment, the telescoping of the leveling machine can be controlled to exclude the range that is difficult to spread evenly by the leveling machine from the construction object.

[0119] The remote management device 300 displays the corrected data on the display device 506. The remote management device 300 displays a map indicating the range excluded from the construction object on the display device 506. Therefore, according to the present embodiment, the range excluded from the construction object by the user who remotely manages the job site can be easily confirmed.

[0120] The remote management device 300 displays the corrected data on the display device 506 of the communication terminal 200, which is a portable information terminal. Therefore, according to the present embodiment, the range excluded from the construction object by the user who manages the job at the job site can be easily confirmed.

[0121] The remote management device 300 stores the corrected data in the storage device. Therefore, according to the present embodiment, when the user refers to past design data, the range excluded from the construction object can be easily confirmed.

[0122] In addition, in the present embodiment, although an example in which the design data is corrected by executing the correction process by the remote management device 300 has been described, the device that executes the correction process may also be a device other than the remote management device 300. For example, the correction process may be executed by the communication terminal 200, or may be executed by another device different from the communication terminal 200 and the remote management device 300.

[0123] [Second Embodiment]

[0124] In the first embodiment, the remote management device 300 corrects the design data, and the asphalt roller 100 paves the road surface according to the corrected data. Here, the controller 50 of the asphalt roller 100 can be configured to correct the design data. In the second embodiment, the asphalt roller 100 corrects the design data, and paves the road surface according to the corrected data.

[0125] Hereinafter, the asphalt roller 100 according to the second embodiment will be described mainly focusing on the differences from the first embodiment.

[0126] <Functional structure of asphalt roller>

[0127] refer to Figure 10 , the functional structure of the asphalt roller 100 involved in this embodiment is demonstrated. Figure 10 This is a block diagram showing an example of the functional configuration of the asphalt roller according to the second embodiment.

[0128] like Figure 10 As shown, similarly to the first embodiment, a measuring device 46, a travel speed sensor 47, an auxiliary storage device 48, a camera device 51, a communication device 53, a drive system controller 54 and a leveling machine control device 55 are connected to the controller 50 involved in the second embodiment.

[0129] The auxiliary storage device 48 according to the second embodiment includes a design data storage unit 48a and a mechanical data storage unit 48b. The data stored in the design data storage unit 48a and the mechanical data storage unit 48b are the same as the design data storage unit 301 and the mechanical data storage unit 302 according to the first embodiment. However, in the mechanical data storage unit 48b according to the second embodiment, only mechanical data related to the asphalt roller 100 having the controller 50 may be stored.

[0130] More specifically, the controller 50 according to the second embodiment includes a communication control unit 101, an acquisition unit 102, a movement control unit 103, a leveler control unit 104, a determination unit 304, and a correction unit 305 as function blocks composed of software, hardware, or a combination thereof. That is, the controller 50 according to the second embodiment is different from the first embodiment in that it also includes a determination unit 304 and a correction unit 305.

[0131] In addition to acquiring the image information captured by the imaging device 51, the detection information detected by the traveling speed sensor 47, and the position information obtained by the positioning of the measuring device 46, the acquisition unit 102 according to the second embodiment further acquires the design data and mechanical data to be corrected. The acquisition unit 102 reads the design data from the design data storage unit 48a. Further, the acquisition unit 102 reads the mechanical data from the mechanical data storage unit 48b.

[0132] Based on the design data and mechanical data acquired by the acquisition unit 303, the determination unit 304 determines the construction exclusion range. The method for determining the construction exclusion range is the same as that of the first embodiment.

[0133] Based on the construction exclusion range determined by the determination unit 304, the correction unit 305 corrects the design data acquired by the acquisition unit 303. The method for correcting the design data is the same as that of the first embodiment.

[0134] Based on the corrected data generated by the correction unit 305, the movement control unit 103 outputs a control command for controlling the operation of the tractor 1 to the drive system controller 54. Thereby, the controller 50 performs automatic movement control of the tractor 1 to perform the paving process along the traveling path indicated by the corrected data.

[0135] Based on the corrected data generated by the correction unit 305, the finisher control unit 104 outputs a control command for controlling the operation of the finisher 3 to the finisher control device 55. Thereby, the controller 50 performs automatic expansion and contraction control of the finisher 3 to perform the paving process corresponding to the shape of the end of the road surface indicated by the corrected data.

[0136] The communication control unit 101 sends the corrected data corrected by the correction unit 305 to the communication terminal 200. The communication terminal 200 displays the corrected data received from the controller 50 on the display device 506.

[0137] In addition, the communication control unit 101 sends the corrected data corrected by the correction unit 305 to the remote management device 300. The remote management device 300 stores the corrected data received from the controller 50 in a storage device such as the HDD 504 of the remote management device 300. The remote management device 300 displays the corrected data stored in the storage device on the display device 506 of the remote management device 300 according to the operation of the user.

[0138] <Effect of the Second Embodiment>

[0139] The asphalt paver 100 according to this embodiment determines the range excluded from the construction object of the asphalt paver 100, i.e., the road surface, due to the shape change of the end of the road surface which is the construction object of the asphalt paver 100, based on the information related to the operating speed of the asphalt paver 100. It corrects the range of the construction object, i.e., the road surface, according to the determined range, and performs construction within the corrected range of the construction object, i.e., the road surface. In one aspect, according to this embodiment, it is possible to accurately construct a road surface whose end shape has changed.

[0140] The asphalt paver 100 has a function of automatically paving the road surface according to the corrected data. Therefore, according to this embodiment, it is possible to efficiently pave a road surface whose end shape has changed.

[0141] [Embodiment 3]

[0142] In the first embodiment, the construction exclusion range is determined based on the design data and the machine data, and the design data is corrected to exclude the construction exclusion range from the construction object. Here, since the design data is made at a place different from the work site, there may be a difference from the actual road surface at the work site. In the third embodiment, a structure for further correcting the corrected data based on the detection result of the road surface detected at the work site will be described.

[0143] Hereinafter, the pavement paving system SYS according to the third embodiment will be described centering on the differences from the first embodiment. Here, an example of applying the structure of the third embodiment to the first embodiment will be described, but the structure of the third embodiment can also be applied to the second embodiment in the same manner.

[0144] <Functional Structure of Pavement Paving System>

[0145] Refer to Figure 11 , and the functional structure of the pavement paving system SYS according to this embodiment will be described. Figure 11 is a block diagram showing an example of the functional structure of the pavement paving system according to the third embodiment.

[0146] <<Controller of Asphalt Paver>>

[0147] As Figure 10 shown, similarly to the first embodiment, a measuring device 46, a traveling speed sensor 47, an auxiliary storage device 48, a camera device 51, a communication device 53, a drive system controller 54, and a screed control device 55 are connected to the controller 50 according to the third embodiment.

[0148] More specifically, the controller 50 according to the third embodiment includes a communication control unit 101, an acquisition unit 102, a movement control unit 103, a leveling machine control unit 104, and a road surface detection unit 105 as functional blocks constituted by software, hardware, or a combination thereof. That is, the controller 50 according to the third embodiment is different from the first embodiment in that it further includes a road surface detection unit 105.

[0149] The road surface detection unit 105 detects the road surface, which is the construction object of the asphalt paver 100, based on the image information captured by the imaging device 51. In the present embodiment, the road surface detection unit 105 detects the shapes of the left and right ends of the road surface in the traveling direction of the asphalt paver 100. In other words, the road surface detection unit 105 detects the shapes of the ends of the road surface before construction by the asphalt paver 100.

[0150] The communication control unit 101 according to the third embodiment transmits the road surface detection result detected by the road surface detection unit 105 to the remote management device 300. The remote management device 300 temporarily stores the road surface detection result received from the controller 50 in a storage device such as the HDD 504 of the remote management device 300.

[0151] <<Remote Management Device>>

[0152] As Figure 11 shown, the remote management device 300 according to the third embodiment includes a design data storage unit 301, a machine data storage unit 302, an acquisition unit 303, a determination unit 304, a correction unit 305, a storage control unit 306, a communication control unit 307, and a display control unit 308. That is, the remote management device 300 according to the third embodiment includes the same processing units as those in the first embodiment.

[0153] The acquisition unit 303 according to the third embodiment acquires the road surface detection result that detects the road surface as the construction object. The road surface detection result shows the shape of the end of the road surface detected at the work site. In the present embodiment, the acquisition unit 303 acquires the road surface detection result by reading from the storage device the road surface detection result detected by the asphalt paver 100 and transmitted to the remote management device 300.

[0154] However, the road surface detection result may also be the result of detecting the road surface by an external device other than the asphalt paver 100. The external device may be, for example, a dump truck that supplies paving materials to the asphalt paver 100. And, for example, the external device may be an unmanned aircraft also known as a drone or the like.

[0155] The calibration unit 305 according to the third embodiment further calibrates the calibrated data based on the road surface detection result obtained by the acquisition unit 303. Hereinafter, the design data further calibrated by the calibration unit 305 is also referred to as "re-calibrated completed data". Specifically, the calibration unit 305 calibrates the shape of the end portion of the construction object represented by the calibrated data (that is, the construction object excluding the range determined by the determination unit 304) to match the shape of the end portion represented by the road surface detection result. And when calibrating the shape of the end portion of the road surface represented by the calibrated data, the calibration unit 305 calibrates the construction exclusion range to match the shape of the calibrated road surface end portion.

[0156] The storage control unit 306 according to the third embodiment stores the re-calibrated completed data generated by the calibration unit 305 in the design data storage unit 301. The storage control unit 306 can overwrite the calibrated data generated by the calibration unit 305 with the re-calibrated data, or can store the re-calibrated data and the calibrated data together in the design data storage unit 301.

[0157] <Re-calibration process>

[0158] Reference Figure 12 , the re-calibration process performed by the remote management device 300 will be described. Figure 12 is a timing chart showing an example of the re-calibration process according to the third embodiment. The re-calibration process is a process of re-calibrating the calibrated data based on the road surface detection result.

[0159] In step S21, the acquisition unit 102 of the controller 50 acquires the image information captured by the imaging device 51. Then, the acquisition unit 102 sends the acquired image information to the road surface detection unit 105. The road surface detection unit 105 detects the road surface, which is the construction object of the asphalt paver 100, based on the image information received from the acquisition unit 102.

[0160] In step S22, the road surface detection unit 105 of the controller 50 sends the road surface detection result of the road surface detected in step S21 to the communication control unit 101. The communication control unit 101 sends the road surface detection result received from the road surface detection unit 105 to the remote management device 300.

[0161] In step S23, the acquisition unit 303 of the remote management device 300 receives the road surface detection result from the controller 50. Then, the acquisition unit 303 stores the received road surface detection result in the storage device.

[0162] In step S24, the acquisition unit 303 of the remote management device 300 reads the road surface detection result from the storage device. Next, the acquisition unit 303 reads the calibrated completed data to be recorrected from the design data storage unit 301. The calibrated completed data to be recorrected is the calibrated completed data with the road surface indicated by the road surface detection result as the construction object. Moreover, the acquisition unit 303 sends the road surface detection result and the calibrated completed data to the calibration unit 305.

[0163] In step S25, the calibration unit 305 of the remote management device 300 receives the road surface detection result and the calibrated completed data from the acquisition unit 303. Next, the calibration unit 305 further calibrates the calibrated completed data according to the road surface detection result. Moreover, the calibration unit 305 sends the recalibrated completed data to the storage control unit 306 and the communication control unit 307.

[0164] In step S26, the storage control unit 306 of the remote management device 300 receives the recalibrated completed data from the calibration unit 305. Next, the storage control unit 306 stores the received recalibrated completed data together with the calibrated completed data read in step S24 in the design data storage unit 301.

[0165] In step S27, the communication control unit 307 of the remote management device 300 receives the recalibrated completed data from the calibration unit 305. Next, the communication control unit 307 sends the received recalibrated completed data to the asphalt paver 100.

[0166] In step S28, the communication control unit 101 of the controller 50 receives the recalibrated completed data from the remote management device 300 through the communication device 53. Next, the communication control unit 101 stores the received recalibrated completed data in the auxiliary storage device 48.

[0167] In step S29, the controller 50 starts automatic paving control. Thereby, the asphalt paver 100 can automatically pave the range of the road surface of the construction object reflecting the road surface detection result.

[0168] <Effect of the Third Embodiment>

[0169] The remote management device 300 according to the present embodiment acquires a detection result that detects the shape of the end portion of the road surface, and further corrects the calibrated completed data according to the detection result. In one aspect, according to the present embodiment, it is possible to accurately determine the construction object of the road machinery while reflecting the shape of the end portion of the actual road surface.

[0170] As described above, the embodiments of the information processing apparatus, the road surface paving system, the road machinery, and the program according to the present invention have been described. However, the present invention is not limited to the above-described embodiments and the like. Various changes, corrections, substitutions, additions, deletions, and combinations can be made within the scope described in the technical solution. Of course, these also belong to the technical scope of the present invention.

Claims

1. An information processing device comprising: a determination unit configured to determine, based on information related to an operation speed of the road machine, a range excluded from the construction target of the road machine due to a change in shape of an end portion of a road surface that is a construction target of the road machine; and The correction unit is configured to correct the range of the road surface being the construction target based on the range determined by the determination unit.

2. The information processing device according to claim 1, wherein: The apparatus further comprises an acquisition unit configured to acquire design data indicating a range of the road surface as the construction object, The correction unit is configured to correct the range of the road surface as the construction target indicated by the design data based on the range determined by the determination unit.

3. The information processing device according to claim 2, wherein: The acquisition unit is configured to acquire a detection result of detecting the shape of the end portion of the road surface. The correction unit is configured to correct the range of the road surface, which is the construction target, indicated by the design data, based on the range determined by the determination unit and the detection result.

4. The information processing device according to claim 1, wherein: The device further comprises an acquisition unit configured to acquire a detection result of detecting the shape of the end portion of the road surface. The correction unit is configured to correct the range of the road surface being the construction target, based on the range determined by the determination unit and the detection result.

5. The information processing device according to claim 1, wherein: The road machine includes a screed machine that evenly spreads the paving material scattered on the road surface and is retractable in the vehicle width direction. The determination unit is configured to determine the range based on a shape of an end portion of the road surface, a traveling speed of the road machine, an extension and retraction speed of the screed machine, and a shape of the screed machine.

6. The information processing device according to claim 5, wherein: The correction unit is configured to determine a position at which extension and retraction of the leveler is to be started, based on the range determined by the determination unit.

7. The information processing device according to any one of claims 1 to 6, wherein: The device further includes a display control unit configured to display, on a display device, design data indicating the range of the road surface as the construction target corrected by the correction unit.

8. The information processing device according to claim 7, wherein: The display control unit is configured to display a map showing the range specified by the specifying unit within the range of the road surface as the construction object corrected by the correction unit.

9. The information processing device according to claim 7, wherein: The display control unit displays design data indicating the range of the road surface as the construction target corrected by the correction unit on the display device of the portable information terminal.

10. The information processing device according to any one of claims 1 to 6, wherein: The device further includes a storage control unit configured to store design data indicating the range of the road surface as the construction target corrected by the correction unit in a storage device.

11. A road paving system, wherein a road machine and an information processing device can communicate via a network, wherein: The information processing device comprises: a determination unit configured to determine, based on information related to the operating speed of the road machine, a range excluded from the construction target of the road machine due to a change in shape of an end portion of a road surface that is a construction target of the road machine; and a correction unit configured to correct the range of the road surface being the construction object based on the range determined by the determination unit, The road machine is configured to perform construction within the range of the road surface being the construction target corrected by the correction unit.

12. A road machine comprising: a determination unit configured to determine, based on information related to the operating speed of the road machine, a range excluded from the construction target of the road machine due to a change in shape of an end portion of a road surface that is a construction target of the road machine; and a correction unit configured to correct the range of the road surface being the construction object based on the range determined by the determination unit, The road machine is configured to perform construction within the range of the road surface being the construction target corrected by the correction unit.

13. The road machine according to claim 12, wherein: The device has a function of automatically paving the area of ​​the road surface, which is the construction object, corrected by the correction unit.

14. A program for causing a computer to execute the following steps: determining, based on information related to the operating speed of the road machine, a range excluded from the construction target of the road machine due to a change in shape of an end portion of a road surface that is a construction target of the road machine; and The range of the road surface, which is the construction object, is corrected based on the range determined in the determining step.

Images