Pavement construction system

Abstract

The present invention addresses the problem of performing asphalt paving at consistent quality and properly retaining the distance separating an asphalt finisher and a rolling roller. The present invention comprises a first control unit (18) provided to an asphalt finisher (14), and a second control unit (32) provided to a rolling roller (16). The first control unit (18) and the second control unit (32) can communicate information back and forth. The second control unit (32) automatically controls the speed of the rolling roller (16), on the basis of, inter alia, vehicle information that pertains to the asphalt finisher as transmitted from the first control unit (18), so that the rolling roller (16) can complete rolling in a preset prescribed number of rolling cycles at a preset prescribed temperature or higher.

Description

Pavement Construction System

[0001] The present invention relates to a paving system that includes an asphalt finisher that spreads and levels paving material and a compaction roller that compacts the spread and leveled paving material.

[0002] For example, Patent Document 1 discloses a method for using a controller to determine the feed rate of an asphalt mixture supplied from an asphalt mixture plant to a paving job site, as well as the travel speeds of multiple paving machines.

[0003] In Patent Document 1, the speed of at least one of the multiple paving machines is determined based on the supply speed of the asphalt mixture.

[0004] U.S. Pat. No. 1,048,0131

[0005] The asphalt finisher spreads and smooths the asphalt mixture on the pavement surface at a constant speed corresponding to the amount of asphalt mixture supplied from the transport truck. The compaction roller follows behind the asphalt finisher, traveling back and forth a predetermined distance a predetermined number of times to compact the asphalt mixture that has been smoothed on the pavement surface.

[0006] In this case, if the rolling roller is unable to complete the rolling in time, the temperature of the spread asphalt mixture may drop below the specified temperature, and it may not be possible to roll the specified number of times at a temperature above the specified temperature.

[0007] Furthermore, if the distance between the asphalt finisher and the compaction roller behind it becomes too close, there is a risk that the two may come into contact with each other.

[0008] The present invention has been made in consideration of the above points, and aims to provide a paving construction system that can perform asphalt paving with stable quality and maintain an appropriate distance between the asphalt finisher and the compaction roller.

[0009] In order to achieve the above-mentioned object, the present invention comprises an asphalt finisher that spreads and levels paving material, a compaction roller that compacts the spread and leveled paving material, a first control unit provided on the asphalt finisher, and a second control unit provided on the compaction roller, wherein the first control unit and the second control unit are capable of communicating information with each other, and the second control unit automatically controls the speed of the compaction roller based on at least one piece of information: leveling speed information calculated from the amount of paving material shipped from the paving material plant and the paving material transportation time, and vehicle information of the asphalt finisher transmitted from the first control unit, so that the compaction roller can complete a predetermined number of compactions at a predetermined temperature or higher.

[0010] As a result, in the present invention, the second control unit automatically controls the speed of the compaction roller based on vehicle information, etc. transmitted from the first control unit, thereby enabling asphalt paving to be performed with stable quality and the distance between the asphalt finisher and the compaction roller to be maintained appropriately.

[0011] The present invention also provides an asphalt finisher that spreads and levels paving material, a compaction roller that compacts the spread and leveled paving material, a first control unit provided in the asphalt finisher, and a second control unit provided in the compaction roller, wherein the first control unit and the second control unit are capable of communicating with each other, and the first control unit receives feedback from the second control unit about the compaction work of the compaction roller, and the first control unit automatically controls the spreading and leveling speed of the asphalt finisher so that the compaction roller can complete the compaction work with paving material that is at or above a predetermined temperature.

[0012] As a result, in the present invention, the first control unit automatically controls the spreading speed of the asphalt finisher based on the compaction work information fed back from the second control unit, thereby enabling asphalt paving to be performed with stable quality and the distance between the asphalt finisher and the compaction roller to be maintained appropriately.

[0013] Furthermore, the present invention comprises an asphalt finisher that spreads and levels paving material, a compaction roller that compacts the spread and leveled paving material, a first control unit provided on the asphalt finisher, and a second control unit provided on the compaction roller, wherein the first control unit and the second control unit are capable of communicating information with each other, and the second control unit automatically controls the speed of the compaction roller based on at least one of information: spreading and leveling speed information calculated from the amount of paving material shipped from a paving material plant and the paving material transportation time, and vehicle information of the asphalt finisher transmitted from the first control unit, so that the compaction roller can complete a predetermined number of compactions at a predetermined temperature or above, and the first control unit receives feedback from the second control unit about the compaction work of the compaction roller, and the first control unit automatically controls the spreading and leveling speed of the asphalt finisher so that the compaction roller can complete the compaction work with paving material that is at a predetermined temperature or above.

[0014] As a result, in the present invention, the second control unit automatically controls the speed of the compaction roller based on vehicle information, etc. sent from the first control unit, and the first control unit automatically controls the spreading speed of the asphalt finisher based on compaction work information fed back from the second control unit, thereby making it possible to perform asphalt paving with stable quality and maintain an appropriate distance between the asphalt finisher and the compaction roller.

[0015] Furthermore, the present invention comprises an asphalt finisher that spreads and levels paving material, a compaction roller that compacts the spread and leveled paving material, a first control unit provided on the asphalt finisher, a second control unit provided on the compaction roller, and a third control unit other than the first control unit and the second control unit, wherein the first control unit, the second control unit, and the third control unit are capable of communicating information with each other, and the third control unit automatically controls the speed of the compaction roller based on at least one of information: spreading and leveling speed information calculated from the amount of paving material shipped from a paving material plant and the paving material transportation time, and vehicle information of the asphalt finisher transmitted from the first control unit, so that the compaction roller can complete a predetermined number of compactions at or above a predetermined temperature, or automatically controls the speed of the compaction roller based on an input value input to the third control unit.

[0016] As a result, in the present invention, a third control unit is provided that can communicate information with the first control unit and the second control unit, and the speed of the compaction roller is automatically controlled, thereby making it possible to perform asphalt paving with stable quality and to maintain an appropriate distance between the asphalt finisher and the compaction roller.

[0017] Furthermore, the present invention comprises an asphalt finisher that spreads and levels paving material, a compaction roller that compacts the spread and leveled paving material, a first control unit provided on the asphalt finisher, a second control unit provided on the compaction roller, and a third control unit other than the first control unit and the second control unit, wherein the first control unit, the second control unit, and the third control unit are capable of communicating information with each other, and the third control unit receives feedback from the second control unit about the compaction work of the compaction roller, and the third control unit automatically controls the spreading and leveling speed of the asphalt finisher so that the compaction roller can complete the compaction work with paving material that is at or above a predetermined temperature, or automatically controls the spreading and leveling speed of the asphalt finisher based on an input value input to the third control unit.

[0018] As a result, in the present invention, a third control unit is provided that can communicate information with the first control unit and the second control unit, and the leveling speed of the asphalt finisher is automatically controlled, thereby making it possible to perform asphalt paving with stable quality and maintain an appropriate distance between the asphalt finisher and the compaction roller.

[0019] Furthermore, the present invention provides a system comprising an asphalt finisher that spreads and levels paving material, a compaction roller that compacts the spread and leveled paving material, a first control unit provided in the asphalt finisher, a second control unit provided in the compaction roller, and a third control unit other than the first control unit and the second control unit, wherein the first control unit, the second control unit, and the third control unit are capable of communicating information with each other, and the third control unit controls the speed of the compaction roller based on at least one of information on the amount of paving material shipped from a paving material plant and the time required to transport the paving material, and vehicle information on the asphalt finisher transmitted from the first control unit. The third control unit automatically controls the speed of the compaction roller so that a predetermined number of compactions can be completed at a predetermined temperature or higher, or automatically controls the speed of the compaction roller based on an input value input to the third control unit, and compaction work information of the compaction roller is fed back to the third control unit from the second control unit, and the third control unit automatically controls the spreading speed of the asphalt finisher so that the compaction roller can complete the compaction work on paving material at a temperature above a predetermined temperature, or automatically controls the spreading speed of the asphalt finisher based on an input value input to the third control unit.

[0020] As a result, in the present invention, a third control unit is provided that can communicate information with the first control unit and the second control unit, and automatically controls the speed of the compaction roller and the leveling speed of the asphalt finisher based on the compaction work information, thereby making it possible to perform asphalt paving with stable quality and maintain an appropriate distance between the asphalt finisher and the compaction roller.

[0021] According to the present invention, a paving system can be obtained that can perform asphalt paving with stable quality and can properly maintain the distance between the asphalt finisher and the compaction roller.

[0022] FIG. 1 is a schematic plan view of a pavement construction system according to an embodiment of the present invention, showing a state in which vehicle information is transmitted from the first control unit to the second control unit. FIG. 2 is a schematic plan view of a pavement construction system according to an embodiment of the present invention, showing a state in which compaction work information is transmitted from the second control unit to the first control unit. FIG. 3 is a schematic plan view of a pavement construction system according to an embodiment of the present invention, showing a state in which vehicle information is transmitted from the first control unit to the second control unit, and compaction work information is transmitted from the second control unit to the first control unit. FIG. 4 is a schematic plan view of a pavement construction system according to a modified example of FIG. 4, showing a state in which a cloud is interposed between the first control unit and the second control unit and instructions are transmitted via the cloud. FIG. 5 is a block diagram showing the structures of an asphalt finisher and a compaction roller.

[0023] Next, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

[0024] As shown in FIG. 1 , a pavement construction system 10 according to an embodiment of the present invention includes an asphalt finisher 14 that spreads and levels an asphalt mixture on a pavement surface 12, and a compaction roller 16 that is positioned behind the vehicle relative to the asphalt finisher 14 and that compacts the asphalt mixture that has been spread and leveled on the pavement surface 12.

[0025] The asphalt finisher 14 is mainly composed of a tractor unit, a hopper unit, a screed unit, a first control unit 18, and the like.

[0026] The tractor unit is a mechanism for propelling the asphalt finisher 14. This tractor unit is composed of, for example, a rear-wheel drive hydraulic motor that drives the rear wheels to rotate, and a front-wheel drive hydraulic motor that drives the front wheels to rotate.

[0027] The hopper is a mechanism for receiving the asphalt mixture. The hopper is located in front of the tractor and can be opened and closed in the vehicle width direction by a hopper cylinder (not shown). When the hopper is held fully open, it can receive the asphalt mixture (paving material) from the bed of a transport dump truck (not shown).

[0028] The screed is a mechanism that spreads the asphalt mixture across the width of the vehicle. The screed can be fixed or extendable.

[0029] 6, the first control unit 18 of the asphalt finisher 14 has a first wireless communication device 20, a first position measurement device 22, a first calculation device 24, a first vehicle controller 26, a first speed sensor 28, and a temperature sensor 30. The first control unit 18 may also include an input unit (such as an operation panel), a display unit (such as a monitor), and a storage unit (such as various types of memory).

[0030] The first wireless communication device 20 wirelessly communicates with a second control unit 32 (second wireless communication device 34) of the compaction roller 16, which will be described later, and transmits vehicle information (AF information), which will be described later, to the second control unit 32 provided in the compaction roller 16. The first position measurement device 22 includes a GPS (Global Positioning System) and identifies the position of the target object (asphalt finisher 14) using artificial satellites. The first calculation device 24 calculates various information related to the asphalt finisher 14 based on control signals from the first vehicle controller 26.

[0031] The first vehicle controller 26 controls the traveling function of the asphalt finisher 14 and the function of spreading and leveling the asphalt mixture on the pavement surface 12. The first speed sensor 28 detects the traveling speed of the asphalt finisher 14. The temperature sensor 30 detects the temperature of the asphalt mixture.

[0032] The first control unit 18 (first wireless communication device 20) transmits vehicle information (AF information) to a second control unit 32 (second wireless communication device 34) (described later) of the compaction roller 16. This vehicle information includes, for example, information such as the position of the asphalt finisher 14, the spreading speed of the asphalt finisher 14, the temperature of the asphalt mixture (paving material), the spreading thickness of the asphalt mixture (applied thickness, applied surface height), the degree of compaction, the application width, the traveling direction of the asphalt finisher 14, and the traveling posture of the asphalt finisher 14. Note that the "vehicle information" may include at least one of these pieces of information.

[0033] The compaction roller 16 includes a body frame, a roller rotatably supported by the body frame, a rotation drive unit (e.g., an engine or motor) that is provided on the body frame and drives the roller to rotate, and a second control unit 32. Although only a single compaction roller 16 is shown in Figures 1 to 3, this is not limiting and multiple compaction rollers 16 may be arranged. Furthermore, the term "compaction roller" includes, for example, a tandem roller, a combined roller, a tire roller, a macadam roller, etc.

[0034] 6, the second control unit 32 of the compaction roller 16 has a second wireless communication device 34, a second position measurement device 36, a second calculation device 38, a second vehicle controller 40, a second speed sensor 42, a compaction management device 44, and a temperature sensor 46. The second control unit 32 may also be configured to include an input unit (such as an operation panel), a display unit (such as a monitor), and a storage unit (such as various types of memory).

[0035] The second wireless communication device 34 is a device that wirelessly communicates with the first wireless communication device 20 of the asphalt finisher 14. The second positioning device 36 includes a GPS and identifies the position of the target object (the compaction roller 16) using artificial satellites. The second calculation device 38 calculates various information related to the compaction roller 16 based on control signals from the second vehicle controller 40.

[0036] The second vehicle controller 40 controls the traveling function, compaction function, etc. of the compaction roller 16. The second speed sensor 42 detects the traveling speed of the compaction roller 16. The compaction management device 44 manages information on the area under construction (e.g., area A, area B, area C), the completion rate of the area under construction, the thickness of the compacted pavement layer, the degree of compaction, etc.

[0037] The second control unit 32 (second wireless communication device 34) transmits compaction work information (roller information) of the compaction roller 16 to the first control unit 18 (first wireless communication device 20) of the asphalt finisher 14. This compaction work information includes, for example, information such as the position of the compaction roller 16, the running speed of the compaction roller 16, the compaction range, the progress rate of the compaction work, the degree of compaction, the compaction width, the direction of travel of the compaction roller 16, the moving posture, and temperature information of the asphalt mixture during compaction. Note that the "compaction work information" may include at least one of these pieces of information.

[0038] The pavement construction system 10 according to this embodiment is basically configured as described above, and its effects will now be described.

[0039] As shown in Figure 1, the second control unit 32 (second wireless communication device 34) of the compaction roller 16 communicates wirelessly with the first wireless communication device 20 of the asphalt finisher 14 and receives vehicle information (AF information) from the first control unit 18 of the asphalt finisher 14.

[0040] That is, the second control unit 32 of the compaction roller 16 automatically controls the running speed of the compaction roller 16 based on at least one of the following information: spreading speed information calculated from the amount of paving material shipped from the paving material plant and the paving material transportation time, and vehicle information (AF information) of the asphalt finisher 14 transmitted from the first control unit 18 of the asphalt finisher 14, while avoiding contact between the asphalt finisher 14 and the compaction roller 16 so that the compaction roller 16 can complete a predetermined number of compactions at a predetermined temperature or higher.

[0041] This allows the compaction roller 16 to complete the compaction work by maintaining the asphalt mixture at a predetermined temperature or higher, a predetermined number of compactions, and a predetermined degree of compaction. Furthermore, in this embodiment, asphalt paving can be performed with stable quality, and the distance (positional relationship) between the asphalt finisher 14 and the compaction roller 16 can be maintained appropriately.

[0042] In order to ensure the quality of compaction of the pavement surface 12 by the compaction roller 16, threshold values ​​such as an upper limit speed, a lower limit speed, and acceleration / deceleration may be set in the control range of the running speed of the compaction roller 16. Furthermore, it is not necessary to set all of these threshold values ​​in the control range of the running speed of the compaction roller 16; it is sufficient to set at least one threshold value.

[0043] 2, the first control unit 18 (first wireless communication device 20) of the asphalt finisher 14 communicates wirelessly with the second control unit 32 (second wireless communication device 34) of the compaction roller 16, and compaction work information is fed back from the second control unit (second wireless communication device) of the compaction roller 16. Based on the received compaction work information, the first control unit 18 of the asphalt finisher 14 automatically controls the spreading speed of the asphalt finisher 14 so that the compaction roller 16 can complete the compaction work on paving material that is at or above a predetermined temperature, while avoiding contact between the asphalt finisher 14 and the compaction roller 16.

[0044] This allows the distance (positional relationship) between the asphalt finisher 14 and the compaction roller 16 to be maintained at an appropriate level so that the compaction roller 16 can complete the compaction work on the asphalt mixture at a predetermined temperature or higher.

[0045] In order to ensure the quality of the paving mix laid by the asphalt finisher 14, thresholds such as an upper limit speed, a lower limit speed, and acceleration / deceleration may be set in the control range of the laying and leveling speed of the asphalt finisher 14. It is not necessary to set all of these thresholds in the control range of the laying and leveling speed of the asphalt finisher; it is sufficient to set at least one threshold.

[0046] FIG. 3 shows a state in which vehicle information (AF information) (see FIG. 1) and compaction work information (see FIG. 2) are wirelessly communicated between the asphalt finisher and the compaction roller.

[0047] That is, as shown in FIG. 3, the second control unit 32 of the compaction roller 16 automatically controls the running speed of the compaction roller 16 based on at least one of the following information: spreading speed information calculated from the amount of paving material shipped from the paving material plant and the paving material transportation time; and vehicle information (AF information) of the asphalt finisher 14 transmitted from the first control unit 18 of the asphalt finisher 14, so that the compaction roller 16 can complete a predetermined number of compactions at a predetermined temperature or higher.

[0048] 3, the first control unit 18 (first wireless communication device 20) of the asphalt finisher 14 communicates wirelessly with the second control unit 32 (second wireless communication device 34) of the compaction roller 16, and compaction work information is fed back from the second control unit 32 (second wireless communication device 34) of the compaction roller 16. At the same time as the second control unit of the compaction roller automatically controls the running speed of the compaction roller, the first control unit 18 of the asphalt finisher 14 automatically controls the spreading speed of the asphalt finisher 14 based on the received compaction work information so that the compaction roller 16 can complete the compaction work on paving material that is at or above a predetermined temperature.

[0049] This allows asphalt paving to be performed with consistent quality, while maintaining an appropriate distance between the asphalt finisher 14 and the compaction roller 16. In other words, the problems of the present invention can be solved in either the configuration of Figure 1 or the configuration of Figure 2, but more precise control can be achieved by sharing vehicle information (AF information) and compaction work information between the asphalt finisher 14 and the compaction roller 16, as in the configuration of Figure 3.

[0050] Next, a pavement construction system 10a according to another embodiment of the present invention will be described below. Note that the same components as those in the above embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.

[0051] As shown in Figure 4, a paving construction system 10a according to another embodiment differs from the above embodiment in that it includes a management unit 50 in addition to the asphalt finisher 14 and the compaction roller 16. The management unit 50 is a component that can control and manage the asphalt finisher 14 and the compaction roller 16 on-site or remotely. The management unit 50 can be operated, for example, by a supervisor at the paving work site or an operator of various paving machines.

[0052] The management unit 50 has a third control unit 52 in addition to the first control unit 18 and the second control unit 32. This third control unit 52 is arranged to be able to communicate information with the first control unit 18 of the asphalt finisher 14 and the second control unit 32 of the compaction roller 16. The third control unit 52 is configured to include, for example, a calculation unit (CPU (Central Processing Unit) or the like), an input unit (operation panel or the like), a display unit (monitor or the like), a storage unit (various memories or the like), and a communication unit (wireless communication device or the like).

[0053] The third control unit 52 can automatically control the speed of the compaction roller 16 based on at least one of the following information: the paving speed information calculated from the amount of paving material shipped from the paving material plant and the paving material transportation time, and the vehicle information of the asphalt finisher 14 transmitted from the first control unit 18, so that the compaction roller 16 can complete a predetermined number of compactions at a predetermined temperature or higher.

[0054] In addition, the third control unit 52 can also automatically control the speed of the compaction roller 16 by instructing the second control unit 32 on the speed of the compaction roller 16 based on input values ​​entered into the third control unit 52 by a third party such as a supervisor at the paving work site or an operator of various paving machines.

[0055] Additionally, the third control unit 52 receives feedback from the second control unit 32 regarding the compaction work of the compaction roller 16. This enables the third control unit 52 to automatically control the spreading speed of the asphalt finisher 14 so that the compaction roller 16 can complete the compaction work on paving material that is at or above a predetermined temperature.

[0056] In addition, the third control unit 52 can also automatically control the spreading speed of the asphalt finisher 14 by instructing the first control unit 18 on the spreading speed of the asphalt finisher 14 based on input values ​​entered into the third control unit 52 by a third party such as a supervisor at the paving work site or an operator of various paving machines.

[0057] Thus, in the pavement construction system 10a according to another embodiment, as in the embodiment shown in FIG. 3, vehicle information (AF information) and compaction work information are shared via the management unit 50, enabling more accurate control. Furthermore, because a third party can directly input instruction values ​​into the management unit 50, fine adjustments can be easily made on-site. Furthermore, the inclusion of the management unit 50 allows various pieces of information about the asphalt finisher 14 and the compaction roller 16 to be acquired and stored, thereby managing the data of the asphalt finisher 14 and the compaction roller 16. Furthermore, this acquired data can be trained using machine learning to obtain optimal instruction values.

[0058] Although not specifically shown, in another embodiment, similar to the embodiment shown in Fig. 1, the management unit 50 may acquire vehicle information (AF information) of the asphalt finisher 14, and the management unit 50 may instruct the compaction roller 16 on the traveling speed. Also, in another embodiment, similar to the embodiment shown in Fig. 2, the management unit 50 may acquire compaction work information of the compaction roller 16, and the management unit 50 may instruct the asphalt finisher 14 on the spreading and leveling speed.

[0059] Furthermore, in the present invention, the first control unit 18, the second control unit 32, and the third control unit 52 share the compaction work information of the compaction roller 16 and the vehicle information of the asphalt finisher 14 that they have each acquired, and can automatically control the spreading speed of the asphalt finisher 14 and the speed of the compaction roller 16 so that the asphalt finisher 14 and the compaction roller 16 can complete optimal construction with an emphasis on their respective construction quality.

[0060] As a result, the present invention can perform asphalt paving with stable quality and can maintain an appropriate distance between the asphalt finisher 14 and the compaction roller 16.

[0061] 5 shows a modified example of the pavement construction system 10a according to another embodiment. This modification differs in that a cloud (cloud computing) 60 is interposed between the first control unit 18 of the asphalt finisher 14, the second control unit 32 of the compaction roller 16, and the third control unit 52 of the management unit 50.

[0062] By using the cloud 60, high security is ensured while external access is possible, making information management easier.

[0063] Although the embodiments of the present invention have been described above, appropriate design changes are possible within the scope of the present invention.

[0064] 10, 10a Pavement construction system 14 Asphalt finisher 16 Compaction roller 18 First control unit 32 Second control unit 50 Management unit 52 Third control unit

Claims

1. A paving construction system comprising: an asphalt finisher for spreading paving material at a uniform level; a compaction roller for compacting the spread paving material; a first control unit provided in the asphalt finisher; and a second control unit provided in the compaction roller, wherein the first control unit and the second control unit are capable of communicating information with each other, and the second control unit automatically controls the speed of the compaction roller based on at least one of the following information: spreading speed information calculated from the amount of paving material shipped from a paving material plant and the transportation time of the paving material, and vehicle information of the asphalt finisher transmitted from the first control unit, so that the compaction roller can complete a predetermined number of compactions at or above a predetermined temperature.

2. A paving construction system comprising: an asphalt finisher for spreading paving material evenly; a compaction roller for compacting the spread paving material; a first control unit provided in the asphalt finisher; and a second control unit provided in the compaction roller, wherein the first control unit and the second control unit are capable of communicating information with each other, the first control unit receives compaction work information of the compaction roller from the second control unit, and the first control unit automatically controls the spreading speed of the asphalt finisher so that the compaction roller can complete the compaction work with paving material that is at or above a predetermined temperature.

3. A paving construction system comprising: an asphalt finisher for spreading and leveling paving material; a compaction roller for compacting the spread and leveled paving material; a first control unit provided in the asphalt finisher; and a second control unit provided in the compaction roller, wherein the first control unit and the second control unit are capable of communicating information with each other, and the second control unit automatically controls the speed of the compaction roller based on at least one of the following information: spreading and leveling speed information calculated from the amount of paving material shipped from a paving material plant and the paving material transportation time, and vehicle information of the asphalt finisher transmitted from the first control unit so that the compaction roller can complete a predetermined number of compactions at a predetermined temperature or higher, and wherein compaction work information of the compaction roller is fed back to the first control unit from the second control unit, and the first control unit automatically controls the spreading and leveling speed of the asphalt finisher so that the compaction roller can complete the compaction work with paving material that is at a predetermined temperature or higher.

4. A pavement construction system comprising: an asphalt finisher for spreading paving material at a uniform level; a compaction roller for compacting the spread paving material; a first control unit provided on the asphalt finisher; a second control unit provided on the compaction roller; and a third control unit other than the first control unit and the second control unit, wherein the first control unit, the second control unit and the third control unit are capable of communicating information with each other, and the third control unit automatically controls the speed of the compaction roller based on at least one of information: spreading speed information calculated from the amount of paving material shipped from a paving material plant and the paving material transportation time, and vehicle information of the asphalt finisher transmitted from the first control unit, so that the compaction roller can complete a predetermined number of compactions at or above a predetermined temperature, or automatically controls the speed of the compaction roller based on an input value input to the third control unit.

5. A pavement construction system comprising: an asphalt finisher for spreading paving material evenly; a compaction roller for compacting the spread and leveled paving material; a first control unit provided on the asphalt finisher; a second control unit provided on the compaction roller; and a third control unit other than the first control unit and the second control unit, wherein the first control unit, the second control unit and the third control unit are capable of communicating information with each other, the second control unit feeds back information about the compaction work of the compaction roller to the third control unit, and the third control unit automatically controls the spreading and leveling speed of the asphalt finisher so that the compaction roller can complete the compaction work with paving material that is at or above a predetermined temperature that is set in advance, or automatically controls the spreading and leveling speed of the asphalt finisher based on an input value input to the third control unit.

6. An asphalt finisher for spreading paving material, a compaction roller for compacting the spread paving material, a first control unit provided on the asphalt finisher, a second control unit provided on the compaction roller, and a third control unit other than the first control unit and the second control unit, wherein the first control unit, the second control unit and the third control unit are capable of communicating information with each other, and the third control unit automatically controls the speed of the compaction roller based on at least one of information on spreading speed calculated from the amount of paving material shipped from a paving material plant and the paving material transportation time, and vehicle information of the asphalt finisher transmitted from the first control unit so that the compaction roller can complete a predetermined number of compactions at a predetermined temperature or higher, or automatically controls the speed of the compaction roller based on an input value input to the third control unit, and the third control unit receives compaction work information of the compaction roller fed back from the second control unit, A pavement construction system characterized in that the third control unit automatically controls the spreading and leveling speed of the asphalt finisher so that the compaction roller can complete compaction work with pavement material that is at or above a predetermined temperature that has been set in advance, or automatically controls the spreading and leveling speed of the asphalt finisher based on an input value input to the third control unit.

7. A pavement construction system according to any one of claims 1, 3 and 4, characterized in that the vehicle information includes at least one of the position of the asphalt finisher, the spreading speed of the asphalt finisher, the temperature of the pavement material, the spreading thickness, the degree of compaction, the construction width, the direction of travel and the attitude.

8. A pavement construction system as claimed in any one of claims 2, 3 and 4, characterized in that the compaction work information of the compaction roller includes at least one of the position of the compaction roller, the speed of the compaction roller, the construction area, the progress rate, the degree of compaction, the construction width, the direction of travel and the posture.

9. A pavement construction system according to any one of claims 1, 3 and 4, characterized in that the control range of the speed of the compaction roller includes at least one upper limit speed, a lower limit speed and a threshold value for acceleration / deceleration.

10. A pavement construction system according to any one of claims 2, 3 and 4, characterized in that the control range of the spreading speed of the asphalt finisher includes at least one upper speed limit, a lower speed limit and an acceleration / deceleration threshold value.

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