JP7181983B1 - Pavement management support system - Google Patents

Abstract

A pavement management support system capable of improving the reliability and quality of finished products after asphalt pavement and enabling easy and accurate record management.
A pavement management support system includes a position specifying means 15A for specifying a position where an asphalt paving machine 12 is paving asphalt mixture using a positioning signal from a positioning satellite 13, and an asphalt paving machine. Construction information acquisition means 15B for acquiring information at the time of paving the asphalt mixture in 12, and the position where the asphalt mixture is paving specified by the position specifying means 15A and the asphalt acquired by the construction information acquisition means 15B and an image data generation means 15C for generating image data representing a construction history associated with information at the time of construction of the pavement machine 12.
[Selection drawing] Fig. 1

Description

Article 30, paragraph 2 of the Patent Act applies Disclosure of inventions through exhibition at exhibitions, Exhibition date: October 6th to October 7th, 2021, Exhibition name and venue: “Highway Techno Fair 2021” Tokyo International Exhibition Hall West Halls 3 and 4 (3-11-1 Ariake, Koto-ku, Tokyo), Publisher: Kashima Road Co., Ltd.

Application of Article 30, Paragraph 2 of the Patent Act Publication of the invention through exhibition at a meeting, exhibition date: November 4-5, 2021, meeting name and venue: "34th Japan Road Conference" City Center Hall (2-4-1 Hirakawa-cho, Chiyoda-ku, Tokyo), Publisher: Kashima Road Co., Ltd.

Article 30, paragraph 2 of the Patent Act applies Disclosure of inventions through exhibition at exhibitions, Exhibition date: November 25-November 26, 3rd year of Reiwa, Exhibition name and venue: “Construction Fair Shikoku 2021 in Tokushima” Asty Tokushima (1-1 Higashihama Hinashi, Yamashiro-cho, Tokushima-shi, Tokushima), Publisher: Kashima Road Co., Ltd.

The present invention relates to a pavement management support system, and more specifically, automatically records a construction history that associates the position where asphalt mixture is paved by an asphalt paving machine with information at the time of pavement construction. It relates to a pavement management support system that supports management.

Conventionally, the flow of asphalt pavement and record management at the time of construction generally follows the flow shown in the block diagram of FIG. 7, for example. The following management is performed in each block (A) to (H).
(1) Management at the time of manufacture and shipment: Record the temperature of the asphalt mixture loaded on the truck (dump truck) at the time of shipment of the asphalt mixture (A).
(2) Management of transportation and arrival: Records of the site (position) where the truck brought the asphalt mixture (B), the time of waiting at the site (C), and the asphalt paving machine (asphalt finisher) Time and temperature recordings of the asphalt mixture at delivery, i.e., feeding the asphalt mixture to the asphalt finisher (D).
(3) Leveling management: Recording of the site (position) where the asphalt mixture is spread evenly using an asphalt paving machine (asphalt finisher) and the leveling thickness at that site and the temperature of the asphalt mixture (E).
(4) Management of primary rolling compaction: Recording of primary rolling compaction position and number of times (the number of times the same position is moved back and forth) by the asphalt paving machine (road roller) and rolling temperature at that time (F).
(5) Management of secondary compaction: record the location and number of times of secondary compaction by the asphalt pavement machine (tire roller) (the number of times the same position is reciprocated) and the temperature of the compaction at that time (G).
(6) Finished shape and quality control: Record of finished shape and quality after pavement (H).
etc. are being carried out.

In addition, in each management of (1) to (6) above, each temperature measurement of asphalt mixture, finished shape measurement, quality confirmation, etc. are individually confirmed manually and recorded manually each time. ing. In other words, among the temperature measurement of asphalt mixture, the temperature of the asphalt mixture on the truck is actually measured by a thermometer while a person climbs onto the bed of the truck. A person climbs on the surface of the road and actually measures it with a thermometer, and records each measurement value manually. In addition, for finished shape and quality control, humans measure the finished shape with a tape measure, level, total station, and terrestrial laser scanner, or conduct quality confirmation tests with a non-destructive density meter. Confirmed and manually recorded.

In addition, the conventional construction management is time-consuming because individual checks are performed manually. Furthermore, there is a risk of erroneous input or omission of entry. In general, measurements are taken at several locations in a large construction area, and the measured values are managed as overall representative values, and the quality of locations other than the actually measured locations is handled as an assumption.

As described above, conventional pavement and construction management and recording are done manually. Therefore, there is a problem that a great deal of time is required for measurement and recording. In addition, because it takes a lot of time to measure and record, the measured values at several locations in a large construction area are managed as overall representative values, and the quality of locations other than the actually measured locations is treated as an assumption. In addition, erroneous entries or omissions may occur. Therefore, there was a problem in reliability in terms of quality control for the finished products after asphalt pavement.

Therefore, it should be solved to provide a pavement management support system that can improve the reliability and quality of the finished product after asphalt pavement, and can easily and accurately manage the record. A technical problem arises and the present invention aims to solve this problem.

SUMMARY OF THE INVENTION The present invention has been proposed to achieve the above objects. Position specifying means for specifying using positioning signals from satellites, construction information acquisition means for acquiring information during construction of paving the asphalt mixture with the asphalt paving machine, and the specified by the position specifying means an image data generation means for generating image data representing a construction history in which the position where the asphalt mixture is paving and the information at the time of construction of the asphalt paving machine acquired by the construction information acquisition means are associated with each other; , the position specifying means includes a receiving antenna mounted on the asphalt paving machine for receiving the positioning signal from the positioning satellite, and a vehicle for carrying the asphalt mixture into the asphalt paving machine, A vehicle-side thermometer that detects the temperature of the asphalt mixture loaded on the loading platform in a non-contact manner, and a vehicle-side thermometer that is mounted on the asphalt paving machine and detects the temperature of the asphalt mixture in the area paved by the asphalt paving machine in a non-contact manner. and a pavement machine-side thermometer that detects a temperature drop in the asphalt mixture based on the position information of the asphalt pavement machine when the vehicle-side thermometer detects a temperature drop in the asphalt mixture. Provided is a pavement management support system for specifying the spreading range of the asphalt mixture delivered by the vehicle to the asphalt paving machine .

According to this configuration, the record of the position of the construction site where the asphalt mixture is paved by the asphalt paving machine is recorded by the position specifying means, for example, a satellite that measures the current position using an artificial satellite such as GPS or GNSS. It can be determined using positioning signals from positioning satellites in positioning systems (also known as navigation satellite systems). In addition, the image data representing the construction history in which the position where the asphalt mixture is paving specified by the position specifying means and the information at the time of construction of the asphalt paving machine acquired by the construction information acquisition means are associated with each other is imaged. Data generation means (for example, dedicated software) enables automatic recording.

Furthermore , from the temperature drop information obtained by the vehicle-side thermometer mounted on the vehicle and the position information of the asphalt paving machine, the position where the vehicle handed over to the asphalt paving machine, the position where the asphalt mixture started to spread and It is possible to easily specify the spreading range, and to automatically measure the temperature of the asphalt mixture during spreading without human power.

The invention according to claim 2 is the structure according to claim 1 , wherein the asphalt paving machine spreads and levels the asphalt mixture carried by each vehicle, performs primary rolling compaction, secondary The image data generating means generates the temperature of the asphalt mixture during the leveling in the pavement range paved by the asphalt paving machine, and the asphalt during the primary rolling compaction. Provided is a pavement management support system that generates the image data including the temperature of the mixture and the temperature of the asphalt mixture during the secondary compaction.

According to this configuration, the spread temperature of the asphalt mixture in the pavement range paved by the asphalt paving machine, the primary rolling temperature, the secondary rolling temperature, and the number of primary rolling It is possible to automatically leave image data that represents the construction history, including the number of times the pavement has been performed), the number of times of secondary compaction (the number of times that the same position in the pavement range has been moved back and forth, as in the case of the primary compaction), etc. .

According to a third aspect of the present invention, in the configuration of the second aspect, the image data generating means divides the paved range of the asphalt mixture for each vehicle into a plurality of pixels in a grid pattern in the image data. Provide a pavement management support system that divides.

According to this configuration, the paving range of the asphalt mixture brought in and laid for each vehicle is divided into a plurality of pixels in a grid pattern, and the asphalt mixture is spread for each of the divided pixels. The image data representing the construction history including the leveling temperature, the rolling temperature, and the number of times of rolling can be automatically generated by the image data generation means without human power and left automatically.

According to a fourth aspect of the present invention, in the configuration according to the third aspect, the image data generation means uses at least one pixel among the plurality of divided pixels as a representative pixel, and the representative pixel provides a pavement management support system that generates the image data that associates the positions in the pixels of and the information at the time of construction.

According to this configuration, it is possible to create image data representing the construction history by associating the position of the representative pixel among the divided pixels with the information at the time of construction. As a result, it is possible to always compare information at the time of construction in the same pixel without comparing different locations each time, and an accurate construction history can be obtained.

The invention according to claim 5 is the structure according to claim 1 , wherein the asphalt paving machine spreads and levels the asphalt mixture carried by each vehicle, performs primary rolling compaction, secondary The image data generation means is the number of times the asphalt paving machine travels within the pavement range during the primary rolling compaction, and the number of times of the primary rolling compaction, and during the secondary compaction. The pavement management support system generates the image data including the number of times of the secondary compaction, which is the number of times the asphalt paving machine travels back and forth within the pavement range.

According to this configuration, the spreading temperature of the asphalt mixture in the pavement range paved by the asphalt paving machine, the temperature of the primary rolling compaction, the number of times of the primary rolling compaction, and the temperature of the secondary rolling compaction and the secondary rolling compaction Image data representing the construction history, including the number of times of

The invention according to claim 6 is the configuration according to claim 5 , wherein the image data generating means divides the asphalt mixture paving range for each vehicle into a plurality of pixels in a grid pattern. Pavement management support system.

According to this configuration, the paving range of the asphalt mixture brought in by each vehicle and paved by the asphalt paving machine is divided into a plurality of pixels in a grid pattern, and the asphalt mixture for each of the divided pixels is divided into Image data representing the construction history including the spreading temperature, the temperature of the primary compaction and the number of times of the primary compaction, and the temperature of the secondary compaction and the number of times of the secondary compaction are automatically recorded as a record. can be left.

According to the present invention, the position specifying means records the position of the construction site where the asphalt mixture is paving by the asphalt paving machine, and the position specifying means measures the current position using artificial satellites such as GPS and GNSS. It can be identified using positioning signals from positioning satellites in the system. In addition, the image data representing the construction history in which the position where the asphalt mixture is paving specified by the position specifying means and the information at the time of construction of the asphalt paving machine acquired by the construction information acquisition means are associated with each other is imaged. Data generation means (for example, dedicated software) enables automatic recording. As a result, manpower can be saved, and work efficiency can be improved. At the same time, since it is possible to easily review the finished product after asphalt paving, an improvement in reliability and an improvement in quality can be expected.

1 is a block diagram showing a schematic configuration of a pavement management support system shown as an example according to an embodiment of the present invention; FIG. An example of operation processing of a vehicle and an asphalt paving machine is shown. (A) shows the time-series flow of vehicles and the asphalt paving machine, from transporting the asphalt mixture to the asphalt paving site by the vehicle to delivering it to the asphalt finisher. FIG. 10B is a diagram showing temperature changes of the mixed material, and FIG. 1B is a diagram showing an example of the flow of work from leveling the asphalt mixed material on site, rolling compaction, finished shape measurement, and quality confirmation. An example of dividing the area leveled by the asphalt finisher at the asphalt paving site into a grid, and displaying the temperatures during the leveling of the asphalt mixture measured for each divided pixel in different colors. It is a diagram. FIG. 10 is a diagram showing an example in which a range in which a road roller has been compacted at an asphalt paving site is divided into grids, and temperatures during compaction measured for each divided pixel are displayed in different colors. FIG. 10 is a diagram showing an example in which a range in which a road roller rolls down an asphalt pavement site is divided into grids, and the number of rolling rolls measured for each divided pixel is displayed in different colors. FIG. 4 is a diagram showing an example of image data in which digital data is converted into a form for each predetermined management item; FIG. 3 is a block diagram illustrating an example of a construction record during conventional asphalt paving.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a pavement management support system capable of improving the reliability and quality of a finished product after asphalt pavement, and enabling easy and accurate record management. A pavement management support system for achieving a Construction information acquisition means for acquiring information at the time of construction of paving the asphalt mixture, a position where the asphalt mixture is paving specified by the position specifying means, and the asphalt acquired by the construction information acquisition means and an image data generating means for generating image data representing the construction history associated with the information at the time of construction of the pavement machine.

An example according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings. In the following examples, when referring to the number, numerical value, amount, range, etc. of constituent elements, unless otherwise specified or clearly limited to a specific number in principle, the specific number It is not limited, and may be more than or less than a specific number.

In addition, when referring to the shape or positional relationship of components, etc., unless otherwise specified or in principle clearly considered otherwise, etc. include.

In addition, the drawings may exaggerate characteristic parts by enlarging them in order to make the characteristics easier to understand. In addition, in cross-sectional views, hatching of some components may be omitted in order to facilitate understanding of the cross-sectional structure of the components.

Also, in the following description, expressions indicating directions such as up, down, left, and right are not absolute, and are appropriate when each part of the asphalt paving machine of the present invention is depicted. If there is a change in the position, it should be interpreted according to the change in posture. Also, the same reference numerals are given to the same elements throughout the description of the embodiments.

FIG. 1 is a block diagram showing a schematic configuration of a pavement management support system according to the present invention. The pavement management support system shown in FIG. 1 includes a vehicle 11 that receives asphalt mixture at a plant, which is an asphalt mixing station, and carries it to a construction site, and an asphalt paving machine that paves the asphalt mixture brought by the vehicle 11 to the construction site. 12, a positioning satellite 13, a positioning signal receiving antenna 14 for receiving a positioning signal (positional signal) from the positioning satellite 13, and various types of information are processed in a predetermined procedure, and the asphalt paving machine 12 processes the asphalt mixture. Automatically record the construction history that associates the paving position with information on pavement construction (for example, construction time, leveling thickness, number of times of rolling compaction, etc.). A control unit 15 that generates image data representing a history, a data storage device 16 that stores data processed by the control unit 15 in a readable and writable manner, a communication network 17 that interconnects these, a keyboard, a display, a printer, etc. It is composed of an input/output terminal device 21 having a The communication network 17 includes communication networks capable of transmitting and receiving digital signals to and from each other, such as the Internet network, telephone lines, and data lines. Here, the positioning satellite 13 is, for example, a positioning satellite in a satellite positioning system (also known as navigation satellite systems) that measures the current position using artificial satellites such as GPS and GNSS. sends location information and time.

The control unit 15 is, for example, a computer, and part of the position specifying means 15A, the construction information acquiring means 15B, and the image data generating means 15C is configured as programmed dedicated software (application software, etc.). A part of the dedicated software in the control unit 15 may be installed in the asphalt paving machine 12 or the input/output terminal device 21, or may be integrated and provided on the cloud.

Position specifying means 15A in the control unit 15 uses the positioning signal (position signal) received from the positioning satellite 13 by the positioning signal receiving antenna 14 to specify the position where the asphalt paving machine 12 is paving the asphalt mixture. . The construction information acquisition means 15B in the control unit 15 acquires information at the time of construction when the asphalt mixture is paved by the asphalt paving machine 12 (for example, the spread thickness of the asphalt mixture in the paving range constructed by the asphalt paving machine 12, the spread leveling temperature, surface temperature at the time of primary compaction, number of times of primary compaction, surface temperature at the time of secondary compaction, information on the number of times of secondary compaction, etc.). The image data generating means 15C in the control unit 15 associates the paving position of the asphalt mixture specified by the position specifying means 15A with the information at the time of construction of the asphalt paving machine 12 acquired by the construction information acquiring means 15B. Image data representing the attached construction history is generated.

More specifically, the vehicle 11 is, for example, a dump truck or the like, which receives the asphalt mixture at an asphalt mixing station (plant), loads the received asphalt mixture on a loading platform, and transports it to the construction site. The vehicle 11 is provided with a vehicle-side thermometer 11A such as an infrared radiation thermometer capable of automatically measuring the temperature of the asphalt mixture loaded on the loading platform.

The result of the temperature measurement of the asphalt mixture measured by the vehicle-side thermometer 11A is input to the position specifying means 15A and the construction information acquisition means 15B using a communication network 17 such as a smartphone or a PC (personal computer). . The position of the vehicle 11 is also input to the position specifying means 15A and the construction information acquisition means 15B via the communication network 17 in the same way as the temperature information of the asphalt mixture. The vehicle 11 may also be provided with the positioning signal receiving antenna 14 and the positioning means 15A so that the positioning signal from the positioning satellite 13 can be received and the position information of the vehicle 11 can be acquired.

The asphalt paving machine 12 travels between the asphalt finisher 12A that evenly spreads the asphalt mixture carried by the vehicle 11 over the construction position and the paving range spread evenly by the asphalt finisher 12A to compact the asphalt mixture. The road roller 12B performs primary rolling compaction (initial rolling compaction) with the road roller 12B, and after completing the primary rolling compaction with the road roller 12B, as in the case of the primary rolling compaction, over the pavement range compacted by the primary rolling compaction. It includes tire rollers 12C and the like that move back and forth to perform secondary compaction. Note that vibrating rollers may be used for the primary roller compaction and the secondary roller compaction. Therefore, in the following description, the asphalt paving machine 12 will be described, except when it is necessary to distinguish between the asphalt finisher 12A, the road roller 12B, and the tire roller 12C.

As for the temperature (shipment temperature) of the asphalt mixture transported from the plant by the vehicle 11, for example, the target temperature is 178±7°C and the arrival temperature is 170±10°C. Furthermore, in general, the temperature during the spreading operation with the asphalt finisher 12A is 165±10° C., the temperature during the initial rolling operation with the road roller 12B is 155±10° C., and the secondary temperature with the tire roller 12C is 165±10° C. The rolling temperature is 110±10°C.

Further, the asphalt finisher 12A, the road roller 12B, and the tire roller 12C are provided with a positioning signal receiving antenna 14 for specifying each position of the asphalt finisher 12A, the road roller 12B, and the tire roller 12C as position specifying means 15A. A paving machine side thermometer 19 made of a thermometer or the like is installed. The positioning signal receiving antenna 14 receives positioning signals from the positioning satellites 13 to accurately grasp the current positions of the asphalt finisher 12A, the road rollers 12B, and the tire rollers 12C.

The pavement machine side thermometer 19 measures the temperature (temperature of the pavement surface) at the site where the asphalt finisher 12A, the road roller 12B, and the tire roller 12C are respectively working from above each asphalt pavement machine 12 in a non-contact manner. , the measurement result is output to the image data generating means 15C via the position identifying means 15A and the construction information acquiring means 15B.

The image data generation means 15C receives data such as temperature information from the vehicle-side thermometer 11A, position information from the position specifying means 15A in the asphalt pavement machine 12, and temperature information from the pavement-side thermometer 19. In association with the information at the time of construction of the asphalt paving machine 12, as image data representing the construction history, predetermined management items (for example, vehicle number, time, temperature at the beginning of paving, maximum temperature, minimum temperature, average temperature, compaction temperature, number of times of compaction, etc.). The image data generated by the image data generating means 15C can be browsed through the control section 15 by anyone who is authorized using the input/output terminal device 21 such as a personal computer.

The data storage device 16 is storage means for storing the data converted into image data by the control section 15 in a readable and writable manner. Part of the data storage device 16 and part of the program of the control unit 15 may be placed on the cloud.

Next, an operation example of the pavement management support system shown in FIG. 1 will be described. In the operation example, the image data generating means 15C in the control section 15 prepares geographic/topographical information of the construction site prepared in advance with position information stamped by the position specifying means 15A. In addition, as shown in FIGS. 3 to 5, for example, the entire geography and topography of the construction site is divided into a plurality of unit squares (grid), and the construction data is managed for each divided point, and the predetermined management is performed. Image data for each item. In addition, the reference numeral 22 shown in FIG. 3 is a grid line running at equal intervals in the x-axis and y-axis directions, and the reference numeral 23 is one divided portion surrounded by the grid line 22 (hereinafter referred to as “pixel 23”). be. In this embodiment, the size of each pixel 23 is divided into 50 cm long and 50 cm wide. However, this size may be arbitrary.

FIG. 2 shows an example of the operation of the vehicle 11 and the asphalt paving machine 12. (A) shows the operation of the vehicle 11 from the plant to the asphalt paving site until it is delivered to the asphalt finisher 12A. It is a diagram showing the time-series flow (time T) and the general change in temperature measured by the vehicle-side thermometer 11A. It is a figure which shows an example of a flow to confirmation of measurement and quality. The horizontal axis (x-axis) in FIG. 2B is the elapsed time T, and the vertical axis (y-axis) is the temperature ° C. of the asphalt mixture loaded on the loading platform indicated by the vehicle-side thermometer 11A. .

First, changes in the temperature of the asphalt mixture loaded on the loading platform of the vehicle 11 will be described with reference to the behavior of the vehicle 11 using FIG. When the loading platform of the vehicle 11 is empty and the asphalt mixture is not loaded, the temperature measured by the vehicle-side thermometer 11A is low, about 20 to 30°C. From this, it can be seen that the asphalt mixture has not yet been loaded onto the loading platform of the vehicle 11 . Then, when the asphalt mixture is loaded onto the loading platform of the vehicle 11 at the plant (asphalt mixing station), the temperature measured by the vehicle-side thermometer 11A suddenly rises from 20 to 30°C just before the measurement to about 180°C. (Step ST1: Loading materials at the plant), the place and time when the asphalt mixture was loaded onto the loading platform of the vehicle 11 can be known.

Then, the vehicle 11 with the asphalt mixture placed on the loading platform goes to the pavement site as it is, and while waiting at the pavement site, the temperature is maintained at about 150 ° C. (Step ST2: Transportation from the plant to the site, step ST3: Standby on site).

Next, when the vehicle 11 delivers the asphalt mixture to the hopper of the asphalt finisher (spreading machine) 12A, the temperature of the vehicle-side thermometer 11A rapidly drops from about 150°C to 20-30°C (temperature drop). (Step ST4: supply material to asphalt paving machine). In addition, the cargo bed of the unloaded vehicle 11 is returned from the pavement site to the plant while the temperature remains lowered to about 20 to 30° C. (Step ST5: return to the plant). Between step ST1 and step ST4, the temperature change measured by the vehicle-side thermometer 11A is transmitted through the communication network 17, along with the time and position information, to the position specifying means 15A of the control unit 15 and the construction information. They are respectively input to the obtaining means 15B. Moreover, the vehicle 11 repeats the same operation as necessary.

On the other hand, on the asphalt finisher 12A side, when the asphalt mixture is received from the vehicle 11 in the hopper, the temperature of the pavement machine side thermometer 19 on the asphalt finisher 12A, for example, was about 20 to 30° C. until just before. The temperature rapidly rises to 140° C., and temperature information at this time is input to the position specifying means 15A and the construction information acquiring means 15B of the control section 15 . As a result, the position specifying means 15A on the control unit 15 side recognizes that the asphalt finisher 12A has received the asphalt mixture. The position received by the finisher 12A, the time of reception, the temperature at the time of reception (arrival temperature), etc. are sent to the image data generation means 15C of the control section 15 via the construction information acquisition means 15B.

Next, at the site, the asphalt paving machine 12 (asphalt finisher 12A) starts spreading the asphalt mixture evenly. First, the current position of the asphalt finisher 12A is stamped on a construction site map (geographical/topographical information) in which the positional information obtained by the positioning signal receiving antenna 14 is prepared and recorded in the control unit 15 in advance. . In addition, the control unit 15 here divides the pavement range spread with the asphalt mixture of one vehicle into a plurality of pixels 23 in a grid (square) shape, and various information at the time of construction, Each of the plurality of divided pixels 23 is divided into predetermined management items and managed.

The asphalt finisher 12A that receives the asphalt mixture from the vehicle 11 spreads the asphalt mixture for one vehicle on the site, and the movement position (pavement range) of the asphalt finisher 12A obtained from the positioning signal receiving antenna 14 and , the temperature of the asphalt mixture on the construction surface spread evenly by the asphalt finisher 12A during movement is read for each pixel 23 divided by the thermometer 19 on the pavement machine side, and the temperature and position information for each divided pixel 23 and the spread evenness are obtained. The thickness is output to the image data generation means 15C of the control unit 15 via the position specifying means 15A and the construction information acquisition means along with the time at the time of measurement.

On the other hand, on the side of the image data generation means 15C of the control unit 15 which receives the signal from the asphalt finisher 12A, the position and thickness of each pixel 23 where the asphalt mixture from the asphalt finisher 12A is evenly spread, and the spread Image data representing the construction history is generated for each pixel 23 divided into a grid of the time and the temperature of the construction surface at that time. It is divided into images of series number, temperature at the beginning of leveling, maximum temperature, minimum temperature, average temperature, etc.) and saved. FIG. 3 is an example of a heat map in which the image data generation means 15C expresses the construction history of the pixels 23 in the leveling range (pavement range) as image data. In the heat map in FIG. 3, the pavement temperature obtained by the pavement machine thermometer 19 is color-coded according to the pavement temperature and stored for each divided pixel 23 .

Further, when the asphalt finisher 12A finishes spreading the asphalt mixture carried by the first vehicle 11 (the first vehicle 11), it receives the asphalt mixture from the second vehicle 11, The asphalt finisher 12A spreads the asphalt mixture from the second vehicle 11 evenly. Then, in the control unit 15, the position, time, temperature, etc., at which the asphalt mixture carried by the second vehicle 11 is spread evenly by the asphalt finisher 12A are measured by the position specifying means 15A. Information is stamped at the position of each corresponding divided portion by the construction information acquisition means 15B. In this case, even if the asphalt mixture is received from the second vehicle 11, the asphalt finisher 12A received from the first vehicle 11 will not be stored in the asphalt finisher 12A when the asphalt mixture is delivered. A mixture remains. The remaining amount usually disappears when the moving direction is approximately 8 meters (this varies depending on the asphalt finisher 12A) from the position where the delivery was received. Therefore, the start position of the new pavement range will be the new start position of the asphalt mixture delivered from the second machine when the asphalt finisher 12A has advanced about 8 meters from the position where the asphalt mixture was delivered. do. This management is repeated thereafter.

On the other hand, when the asphalt finisher 12A has finished spreading the asphalt mixture for one vehicle 11, i.e., after finishing the work for spreading the asphalt mixture for one vehicle 11, the asphalt finisher 12A is applied. An initial rolling compaction (primary rolling compaction) work is performed in which the road roller 12B moves back and forth while tracing the leveling range (paved range). The initial rolling compaction by the road rollers 12B is performed when the temperature of the asphalt mixture is 116-140.degree. At the time of the initial rolling work by the road roller 12B, the movement position of the road roller 12B obtained from the positioning signal receiving antenna 14 mounted on the road roller 12B and the asphalt mixture on the construction surface rolled at each position during movement are read by the pavement machine side thermometer 19, and predetermined data such as temperature, position information, and time at that time are sent from the road roller 12B through the communication network 17 to the position specifying means 15A and the construction information acquisition means 15B. to the image data generation means 15C.

On the other hand, on the control unit 15 side, based on the information from the position specifying unit 15A and the construction information acquisition unit 15B, the image data generation unit 15C calculates the position to which the road roller 12B applied the initial rolling pressure and the construction time. Then, the image data of the surface temperature on the construction surface at that time is created for each grid-divided pixel 23, and further classified by predetermined control items (for example, the temperature at the time of primary compaction, the maximum temperature, the minimum temperature , average temperature, etc.), added to the image data obtained by the asphalt finisher 12A, and stored as image data representing the construction history. At the same time, the number of times the primary rolling was applied (the number of times the same pixel 23 divided by the grid line 22 was crossed for the primary rolling) is detected from the mapped pixels 23 and converted into an image. Data is stored as image data representing the construction history for each predetermined management item. FIG. 4 shows an example of a heat map in which digital data is added to each pixel 23 divided into a plurality of grids when the load roller 12B applies primary rolling pressure (initial rolling pressure). In FIG. 4, the temperatures obtained by the pavement machine side thermometer 19 of the road roller 12B are color-coded on each pixel 23 divided into a grid according to the pavement temperature when the primary rolling compaction is applied. This is an example of saving 5, the image data generating means 15C of the control unit 15 generates image data for each of the pixels 23 divided into a plurality of grids, and stamps the number of times of rolling by the load roller 12B on the corresponding pixel 23. In this example, each pixel 23 is color-coded and stored according to the number of times the road roller 12B has moved and applied rolling pressure to each pixel 23 .

After the initial rolling compaction work for one vehicle by the road roller 12B is completed, the tire roller 12C moves back and forth in the form of tracing the pavement range to which the road roller 12B applies the primary rolling compaction. The work of secondary rolling compaction of the roller 12C is started. The secondary rolling pressure by the tire roller 12C is obtained from the movement position obtained from the positioning signal receiving antenna 14 mounted on the tire roller 12C and from the paving machine side thermometer 19 of the tire roller 12C when the tire roller 12C is moved. , surface temperature of the construction surface to which the secondary rolling is applied, and predetermined data such as time are generated from the tire roller 12C through the communication network 17 and the position specifying means 15A and the construction information acquisition means 15B to generate image data. Output to means 15C.

On the other hand, on the control unit 15 side, based on the information from the position specifying unit 15A and the construction information acquisition unit 15B, the image data generation unit 15C generates the position where the tire roller 12C applied the secondary rolling pressure and the position at the time of construction. Time and image data of the surface temperature of the construction surface at that time are created for each pixel 23 divided into a plurality of grids, and the image data are displayed on the map shown in FIG. 4 recorded by the road roller 12B. are added, sorted by predetermined management items (for example, temperature and time during secondary compaction, number of times of secondary compaction, etc.) and stored as image data representing construction history. At the same time, the number of times the secondary rolling compaction was applied (the number of times and the time of traveling over the same pixel 23 for rolling compaction) is also added to the map shown in FIG. 5 recorded by the road roller 12B. , save as image data representing the construction history.

In addition, when the secondary compaction work is completed, for example, the finished shape measurement using a laser scanner and the quality confirmation test using a non-destructive density meter are carried out. The data are output as image data to the control unit 15 via the communication network 17, and are stored and managed by the control unit 15 according to management items.

In the pavement management support system configured in this way, the control unit 15 automatically records from the shipment of the asphalt mixture to the time of asphalt paving (construction), and the finished shape measurement and quality confirmation management after paving. , indicates the construction history in which the position (paving range) where the asphalt mixture is paved specified by the position specifying means 15A is associated with the information at the time of construction of the asphalt paving machine 12 acquired by the construction information acquiring means 15B. As image data, it can be documented and stored in the data storage device 16 . During or after construction, anyone who has obtained permission can use a personal computer or the like to activate the control unit 15 to view the record of the construction. Sometimes you can easily see the information you need. That is, data can be shared. FIG. 6 shows an example of a temperature management form automatically created by the pavement management support system.

Therefore, according to the pavement management support system according to this embodiment, the position of the site where the asphalt mixture is being laid by the asphalt paving machine 12 is recorded by the positioning means 15A using the positioning signal from the positioning satellite 13. can be specified. Furthermore, the control unit 15 can classify the construction records at the specified site according to predetermined management items into image data, convert the image data into forms, and automatically record them, thereby saving manpower. Efficiency can be improved. At the same time, since it is possible to easily review the finished product after asphalt paving, an improvement in reliability and an improvement in quality can be expected.

In the above embodiment, the control unit 15 divides the paving range of the asphalt mixture brought in by each of a plurality of vehicles into a plurality of pixels 23 in a grid pattern, and divides the plurality of pixels 23 The case where all construction control values are converted into data and saved has been explained. However, without digitizing the construction management values of all of the plurality of divided pixels 23, some representative pixels 23 among the plurality of pixels 23 are automatically determined, and the determined representative pixels 23 You may make it manage by converting the construction control value in data into data. In this way, when the construction control value of the representative pixel 23 among the pixels 23 divided into a plurality of pixels 23 is converted into data and managed, the construction control value of the same pixel 23 is always maintained without comparing different locations each time. Time information can be compared and an accurate construction history can be obtained. Also, the processing time can be shortened and the display can be simplified.

In addition, the present invention can be modified in various ways without departing from the spirit of the invention, and the present invention naturally extends to such modifications.

11: Vehicle 11A: Vehicle side thermometer 12: Asphalt pavement machine 12A: Asphalt finisher 12B: Road roller 12C: Tire roller 13: Positioning satellite 14: Positioning signal receiving antenna 15: Control unit 15A: Position specifying means 15B: Construction information acquisition Means 15C: Image data generating means 16: Data storage device 17: Communication network 19: Paving machine side thermometer 21: Input/output terminal device 22: Grid line 23: Pixel (place)

Claims (6)

A pavement management support system,
A position specifying means for specifying a position where the asphalt paving machine is paving the asphalt mixture using a positioning signal from a positioning satellite;
Construction information acquisition means for acquiring information during construction of paving the asphalt mixture with the asphalt paving machine;
Generate image data representing a construction history in which the location of paving the asphalt mixture specified by the position specifying means and the information at the time of construction of the asphalt paving machine acquired by the construction information acquiring means are associated with each other. an image data generating means for
with
The locating means is
a receiving antenna mounted on the asphalt paving machine for receiving the positioning signal from the positioning satellite;
A vehicle-side thermometer that is mounted on a vehicle that carries the asphalt mixture to the asphalt paving machine and that detects the temperature of the asphalt mixture loaded on the loading platform of the vehicle without contact;
a paving machine-side thermometer mounted on the asphalt paving machine for detecting the temperature of the asphalt mixture in a portion paved by the asphalt paving machine in a non-contact manner;
with
The image data generating means generates the asphalt mixture delivered by the vehicle to the asphalt paving machine based on the position information of the asphalt paving machine when the vehicle-side thermometer detects a temperature drop of the asphalt mixture. A pavement management support system characterized by specifying a leveling range of . The asphalt paving machine evenly spreads the asphalt mixture carried by each vehicle, and performs pavement in the order of primary rolling compaction and secondary rolling compaction,
The image data generation means generates the temperature of the asphalt mixture during the leveling, the temperature of the asphalt mixture during the primary rolling compaction, and the secondary rolling in the paved range paved by the asphalt paving machine. 2. The pavement management support system according to claim 1 , wherein the image data including the temperature of the asphalt mixture during compaction is generated. 3. The pavement management support system according to claim 2 , wherein said image data generating means divides the pavement range of asphalt mixture for each vehicle into a plurality of pixels in a grid pattern in said image data. . The image data generating means defines at least one of the divided pixels as a representative pixel, and associates the position of the representative pixel with the construction information. 4. The pavement management support system according to claim 3 , which generates data. The asphalt paving machine evenly spreads the asphalt mixture carried by each vehicle, and performs pavement in the order of primary rolling compaction and secondary rolling compaction,
The image data generating means includes the number of times the asphalt paving machine travels back and forth within the pavement range during the primary rolling compaction, and the number of times the asphalt paving machine moves back and forth within the pavement range during the secondary rolling compaction. 2. The pavement management support system according to claim 1 , wherein said image data including the number of times said secondary compaction is performed is generated. 6. The pavement management support system according to claim 5 , wherein said image data generating means divides the asphalt mixture paving range for each vehicle into a plurality of pixels in a grid.

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