A method for collaboratively guiding the hidden track pavement structure and vehicle movement in unmanned heavy-duty highway engineering

Abstract

The present invention provides a concealed track pavement structure and a method for collaborative vehicle guidance for unmanned heavy-load highway projects. An asphalt surface layer is overlaid on a graded, crushed stone, flexible base layer. Within the graded, crushed stone, a continuous array of collaborative guidance track beams is embedded along the highway's direction. 5G sensors and guidance magnetic pins are embedded in the beams along their lengths. These sensors and magnetic pins are configured to collaboratively guide vehicles positioned directly above the beams, ensuring that their wheels remain directly above them during travel. The resulting pavement structure accommodates a mix of standard and heavy-load vehicles and provides the ability to guide vehicles for automatic travel.

Description

Technical Field

[0001] The present invention relates to the technical field of heavy-load highway engineering, and in particular provides a heavy-load highway engineering concealed track pavement structure and a vehicle traveling cooperative guidance method based on the concealed track pavement structure. Background Art

[0002] my country's conventional asphalt roads have a simple pavement structure and low load-bearing capacity. When mixed with regular and heavy-loaded vehicles, heavy-loaded vehicles easily cause rutting on the road surface, severely shortening the road's service life. Furthermore, conventional asphalt roads lack the structure to guide vehicles autonomously.

[0003] At present, the common way to solve the above problems is to pave the entire road surface with heavy-duty asphalt roads. However, this method has problems such as significantly increased material costs, construction costs, and poor economic benefits. Moreover, this ordinary heavy-duty asphalt road structure itself does not have the function of guiding vehicles to move automatically, and cannot meet the needs of modern vehicle technology development. Summary of the Invention

[0004] Based on this, without the need to fully pave heavy-load asphalt roads, the present invention provides a concealed track pavement structure for heavy-load highway projects, which can meet the mixed use of unmanned driving, ordinary vehicles and heavy-loaded vehicles, avoid the rutting problem caused by heavy-loaded vehicles, and have the function of guiding unmanned vehicles to drive automatically.

[0005] In order to achieve the above-mentioned objectives, in a first aspect, the present invention provides a concealed track pavement structure for an unmanned heavy-load highway project, comprising, from bottom to top, a roadbed, a cement crushed stone stabilized base layer, a graded crushed stone flexible base layer and an asphalt surface layer; the cement crushed stone stabilized base layer is provided with a cement coarse crushed stone layer and a cement fine crushed stone layer from bottom to top, and a cement slurry layer is dispersed between the cement coarse crushed stone layer and the cement fine crushed stone layer; the asphalt surface layer is covered on the graded crushed stone flexible base layer; cooperative guide track beams made of reinforced concrete are continuously buried in the graded crushed stone flexible base layer along the direction of the highway, the bottom surface of the cooperative guide track beam is supported by the cement fine crushed stone layer, and the top surface is covered by the asphalt surface layer; 5G sensors and guide magnetic nails are buried in an array along the length direction inside the cooperative guide track beam, and the 5G sensors and guide magnetic nails are configured to cooperatively guide the vehicle located directly above the cooperative guide track beam to move, so that the vehicle keeps its wheels directly above the cooperative guide track beam during movement.

[0006] Preferably, the collaborative guide rail beam includes at least two and the spacing between adjacent collaborative guide rail beams is consistent with the wheel spacing of the vehicle. The cross-section of the collaborative guide rail beam is wide at the bottom and narrow at the top and the top surface width is greater than the wheel width of the vehicle. The 5G sensor and the guide magnetic nail are configured to collaboratively guide the vehicle located directly above the collaborative guide rail beam to move forward, so that the two wheels of the vehicle are always located directly above their corresponding collaborative guide rail beams during the movement.

[0007] Preferably, the cross-section of the cooperative guide rail beam is a convex structure, and the convex structure includes an upper step and a lower step arranged centrally above and below, the width of the upper step is greater than the wheel width of the vehicle, and the width of the lower step is greater than the width of the upper step.

[0008] Preferably, the guiding magnetic nail array is arranged in the upper step and the lower step of the cooperative guiding rail beam, and the 5G sensor is buried in the middle position of the guiding magnetic nail array.

[0009] Preferably, the 5G sensor is buried in the horizontal middle of the cooperative guide rail beam, and the guide magnetic nails are buried on both sides of the 5G sensor.

[0010] Preferably, transverse drainage pipes are arranged in an array along the direction of the highway in the graded crushed stone flexible base layer, the rear end of the transverse drainage pipe extends to near the bottom of the cooperative guide rail beam, the front end is slightly lower than the rear end and extends to the drainage ditch outside the pavement structure.

[0011] In order to achieve the above-mentioned object, in a second aspect, the present invention provides a vehicle traveling cooperative guidance method based on a concealed track pavement structure:

[0012] The vehicle receives signals from the 5G sensor and the guiding magnetic nails of the heavy-duty highway engineering concealed track pavement structure, and selects the following guidance methods based on the presence or absence of received signals:

[0013] When the 5G sensor signal and the guiding magnetic nail signal are strong enough to be received by the vehicle, the vehicle is configured to select both of them as the guiding signal or select either of them as the guiding signal to control the two wheels of the vehicle to move along the upper side of the cooperative guiding rail beam;

[0014] When one of the 5G sensor signal and the guide magnetic nail signal is weak or missing and cannot be received by the vehicle, the vehicle is configured to select the other one as the guidance signal to control the two wheels of the vehicle to move along the upper side of the coordinated guide rail beam;

[0015] When both the 5G sensor signal and the magnetic nail signal are lost, the vehicle is configured to stop moving.

[0016] The vehicle is configured to compare the strength of the 5G sensor signal and the guide magnetic nail signal in real time, and select the one with the stronger signal as the guidance signal.

[0017] The vehicle is configured to select the stronger signal between the 5G sensor signal and the guide magnetic nail signal as the guidance signal, and select the weaker signal between the 5G sensor signal and the guide magnetic nail signal as the correction signal.

[0018] The heavy-duty highway engineering concealed track pavement structure and vehicle travel coordinated guidance method provided by the present invention have at least the following technical advantages:

[0019] a. The roadbed, cement crushed stone stabilized base, graded crushed stone flexible base, and asphalt surface layer are constructed from bottom to top, providing a strong overall load-bearing capacity. A collaborative guide rail beam is embedded within the graded crushed stone flexible base. The beam's 5G sensor signals and magnetic pin signals guide heavy-loaded vehicles, ensuring they maintain their wheels above the beam during travel, preventing rutting.

[0020] b. This concealed track pavement structure has a smooth surface and no surface protrusions, making it suitable not only for heavy-load vehicles but also for ordinary vehicles. The coordinated guide rail beams are only installed in a portion of the pavement structure. Compared with a heavy-load asphalt road with the entire pavement, this structure has the advantages of low material costs and high economic value.

[0021] c. The provided vehicle collaborative guidance method based on a concealed track pavement structure can select all or one of the 5G sensor signals and the guidance magnetic nail signals for vehicle guidance based on their strength, so that the vehicle remains above the collaborative guidance track beam during travel, facilitating all-weather, all-environment automatic guidance control and improving travel safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods. The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention.

[0023] Figure 1 The diagram is a structural diagram of an embodiment of a concealed track pavement structure for a heavy-load highway project.

[0024] Figure 2 A cross-sectional view of an embodiment of a cooperative guide rail beam.

[0025] Figure 3 This is a schematic diagram of the state of a vehicle traveling on the provided concealed track pavement of a heavy-load highway project.

[0026] Figure 4The principle block diagram of the vehicle movement cooperative guidance method based on the dark track pavement structure provided.

[0027] Indicated in the figure:

[0028] 1—roadbed;

[0029] 2—cement crushed stone stabilized base, 21—cement coarse crushed stone layer, 22—cement slurry layer, 23—cement fine crushed stone layer;

[0030] 3—Graded crushed stone flexible base;

[0031] 4—cooperative guide rail beam, 41—upper step, 42—lower step, 43—5G sensor, 44—guiding magnetic nail;

[0032] 5—Asphalt surface layer;

[0033] 6—Vehicle, 61—Wheel. DETAILED DESCRIPTION

[0034] In view of the mixed use of ordinary vehicles and heavy-loaded vehicles on ordinary asphalt roads, heavy-loaded vehicles are prone to causing road rutting problems when driving on them, and the ordinary asphalt road structure itself does not have the function of guiding vehicles to drive automatically. In order to solve the above technical problems, the present invention provides a concealed track pavement structure for heavy-loaded highway projects, which includes, from bottom to top, a roadbed, a cement crushed stone stabilized base layer, a graded crushed stone flexible base layer and an asphalt surface layer. Cooperative guide track beams made of reinforced concrete are continuously buried in the graded crushed stone flexible base layer along the direction of the highway. 5G sensors and guide magnetic nails are buried in the coordinated guide track beams in an array along the length direction. During the driving process, the vehicle uses the 5G sensors and guide magnetic nails to keep the wheels directly above the coordinated guide track beams. This structure can meet the mixed use of ordinary vehicles and heavy-loaded vehicles, avoid the rutting problem caused by heavy-loaded vehicles, and has the function of guiding vehicles to drive automatically.

[0035] Preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings. It should be noted that the described embodiments are only some, and not all, of the present invention. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention, its application, or use. Furthermore, the specific structures of the various embodiments provided may be used in any combination without conflict. Example

[0036] like Figure 1 、 Figure 2 and Figure 3As shown, the present invention provides an embodiment of a concealed track pavement structure for a heavy-duty highway project, which comprises, from bottom to top, a roadbed 1, a cement crushed stone stabilized base 2, a graded crushed stone flexible base 3, and an asphalt surface layer 5; wherein the top surface rebound modulus of the roadbed is not less than 100 MPa; the cement crushed stone stabilized base 2 is provided with a 20 cm cement coarse crushed stone layer 21 and a 20 cm cement fine crushed stone layer 23 from bottom to top, and a cement slurry layer 22 is dispersed between the cement coarse crushed stone layer 21 and the cement fine crushed stone layer 23. Preferably, the dispersion amount of cement slurry in the cement slurry layer 22 is 0.6-1.0 kg / m 2 , a 4cm asphalt surface layer 5 is covered on a 40cm graded crushed stone flexible base layer 3.

[0037] Cooperative guide track beams 4 made of reinforced concrete are continuously buried in the graded gravel flexible base layer 3 along the direction of the highway. The bottom surface of the cooperative guide track beam 4 is supported by a cement fine gravel layer 23 and the top surface is covered by an asphalt surface layer 5. 5G sensors 43 and guide magnetic nails 44 are buried in an array along the length direction inside the cooperative guide track beam 4. The 5G sensors 43 and guide magnetic nails 44 are configured to cooperatively guide the vehicle 6 located directly above the cooperative guide track beam 4 to move forward, so that the wheels of the vehicle 6 are always located directly above the cooperative guide track beam 4 during the movement.

[0038] Preferably, transverse drainage pipes are arranged in an array along the direction of the highway in the graded gravel flexible base layer 3. The rear end of the transverse drainage pipe extends to near the bottom of the cooperative guide rail beam, and the front end is slightly lower than the rear end and extends to the drainage ditch outside the pavement structure, so as to be able to drain the accumulated water in the graded gravel flexible base layer 3 in time and prevent the cooperative guide rail beam 4 from being in an environment with high humidity, which is beneficial to the protection of the 5G sensor 43 and the guide magnetic nail 44.

[0039] It should be noted that in each embodiment of the specific implementation method, the vehicle that can be guided by the 5G sensor and the guide magnetic nail is equipped with a 5G signal receiver that receives the signal emitted by the 5G sensor. The vehicle is also equipped with a 5G signal strength determination unit for determining the strength of the 5G signal. At the same time, the vehicle is also equipped with a magnetic signal receiver that can receive the magnetic signal of the guide magnetic nail, and a magnetic signal strength determination unit for determining the strength of the magnetic signal. The vehicle is also equipped with a travel control system that uses the 5G sensor signal and the magnetic signal for travel guidance. Among them, the 5G sensor 43 and the guide magnetic nail 44 are products commonly used in traffic guidance technology.

[0040] The concealed track pavement structure for heavy-duty highway projects features a cement crushed stone stabilized base, a graded crushed stone flexible base, and an asphalt surface layer stacked sequentially on a high-rebound modulus roadbed. This structure boasts a strong overall load-bearing capacity, a smooth surface, and no surface protrusions, making it suitable for both heavy-duty and ordinary vehicles. Synergistic guide rail beams are embedded within the graded crushed stone flexible base. These beams' 5G sensor signals and magnetic pin signals guide heavy-duty vehicles to maintain their wheels above the beams during travel, preventing rutting. By limiting the beams to only a portion of the pavement structure, the material cost is lower, resulting in higher economic value, compared to a heavy-duty asphalt road with the entire surface. Example

[0041] like Figure 1 、 Figure 2 and Figure 3 As shown, based on the first embodiment, in this embodiment, the cooperative guide rail beam 4 includes two and the spacing between them is consistent with the wheel spacing of the vehicle 6. The cross-section of the cooperative guide rail beam 4 is wide at the bottom and narrow at the top and the top surface width is greater than the wheel width of the vehicle 6. The 5G sensor and the guide magnetic nail are configured to cooperatively guide the vehicle located directly above the cooperative guide rail beam to move forward, so that the two wheels of the vehicle are always located directly above their respective corresponding cooperative guide rail beams during the movement.

[0042] In a preferred embodiment, multiple parallel groups of cooperative guide rail beams are provided, each group includes two rails and the spacing is consistent with the wheel spacing of the vehicle, so as to allow multiple heavy-loaded vehicles to travel and effectively improve transportation efficiency.

[0043] In this embodiment, two collaborative guide rail beams are set with the same width as the wheel spacing of the vehicle and the top surface width is greater than the wheel width of vehicle 6. The vehicle simultaneously receives the two 5G sensor signals and the guide magnetic nail signals of the collaborative guide rail beams, and the wheels on both sides travel directly above the collaborative guide rail beams. This setting enables the vehicle to travel strictly in the direction of the system guide rail beam, which can not only effectively improve the accuracy of the vehicle's travel direction and position; but also, the two collaborative guide rail beams carry wheels on different sides respectively, which is convenient for load balancing; at the same time, it effectively reduces the use of collaborative guide rail beams, reduces material costs, and has good economic benefits. Example

[0044] like Figure 2 and Figure 3As shown, based on Example 1 and / or Example 2, in some preferred embodiments, the cross-section of the cooperative guide track beam 4 is a convex structure, which includes an upper step 41 and a lower step 42 arranged in the middle of the upper and lower parts. The width of the upper step 41 is greater than the wheel width of the vehicle 6, and the width of the lower step 42 is greater than the width of the upper step 41. The guide magnetic pin 44 array is arranged within the upper step 41 and the lower step 42 of the cooperative guide track beam 4, and the 5G sensor 43 is buried in the middle position of the guide magnetic pin 44 array. The 5G sensor 43 is buried in the horizontal middle of the cooperative guide track beam 4, and the guide magnetic pins 44 are buried on both sides of the 5G sensor 43. The arrangement of this cooperative guide track beam structure improves its stability within the road surface structure, can effectively increase the load-bearing capacity, and increase transportation safety. The arrangement of the guide magnetic pins and 5G sensors facilitates the reception of the guide magnetic pin signals by vehicles above, thereby increasing guidance safety. Example

[0045] like Figure 4 As shown, the present invention provides a vehicle travel cooperative guidance method based on a concealed track pavement structure, specifically comprising:

[0046] Vehicle 6 receives signals from the 5G sensor 43 and the guidance magnetic nail 44 of the heavy-duty highway engineering concealed track pavement structure, and selects the following guidance mode according to the presence or absence of the received signal:

[0047] When the signal from the 5G sensor 43 and the signal from the guide magnetic nail 44 are strong and can both be received by the vehicle 6, the vehicle 6 is configured to select both of them as the guidance signal or select either of them as the guidance signal to control the two wheels of the vehicle to move along directly above the cooperative guide rail beam 4;

[0048] When one of the signals of the 5G sensor 43 and the guide magnetic nail 44 is weak or missing and cannot be received by the vehicle 6, the vehicle 6 is configured to select the other one as the guidance signal to control the two wheels of the vehicle to move along the upper side of the cooperative guide rail beam 4;

[0049] When both the 5G sensor 43 signal and the magnetic nail signal are lost, the vehicle 6 is configured to stop moving.

[0050] The provided vehicle collaborative guidance method based on concealed track pavement structure guides vehicle movement through the coordinated action of 5G sensors and guiding magnetic nails. It can select all or one of the 5G sensor signals and guiding magnetic nail signals for vehicle guidance based on the strength of the signals, so that the vehicle remains above the collaborative guidance track beam during movement, facilitating all-weather and all-environment automatic guidance control and improving travel safety.

[0051] In a preferred embodiment, when the 5G sensor 43 signal and the guide magnetic nail 44 signal are strong and can both be received by the vehicle 6, the vehicle 6 is configured to compare the strengths of the 5G sensor 43 signal and the guide magnetic nail 44 signal in real time, and select the one with the stronger signal as the guidance signal, thereby ensuring the effective continuity of the guidance signal, ensuring the safety and continuity of travel, and reducing the impact of external factors such as weather and environment.

[0052] In a preferred embodiment, vehicle 6 is configured to select the stronger of the 5G sensor 43 and guide magnetic pin 44 signals as the guidance signal, and the weaker of the two as the correction signal. By distinguishing the strengths of the 5G sensor and guide magnetic pin signals and selecting the stronger one as the guidance signal and the weaker one as the correction signal, the guidance and correction signals work together to effectively ensure vehicle accuracy and facilitate safe travel.

[0053] The above are only embodiments of the present invention, and common knowledge such as the specific structure and / or characteristics of the scheme are not described in detail here. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several variations and improvements can be made, which should also be regarded as the scope of protection of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A concealed track pavement structure for unmanned heavy-load highway engineering, characterized by: From bottom to top, it includes roadbed (1), cement crushed stone stabilized base (2), graded crushed stone flexible base (3) and asphalt surface layer (5); The cement crushed stone stabilized base (2) is provided with a cement coarse crushed stone layer (21) and a cement fine crushed stone layer (23) from bottom to top, and a cement slurry layer (22) is interspersed between the cement coarse crushed stone layer (21) and the cement fine crushed stone layer (23); Cooperative guide rail beams (4) made of reinforced concrete are continuously buried in the graded crushed stone flexible base layer (3) along the direction of the highway, the bottom surface of the cooperative guide rail beams (4) being supported by the cement fine crushed stone layer (23) and the top surface being covered by the asphalt surface layer (5); 5G sensors (43) and guiding magnetic nails (44) are embedded in an array along the length direction inside the cooperative guide track beam (4). The 5G sensors (43) and guiding magnetic nails (44) are configured to cooperatively guide the vehicle (6) located directly above the cooperative guide track beam (4) to move forward, so that the vehicle (6) keeps its wheels directly above the cooperative guide track beam (4) during the movement.

2. The concealed track pavement structure for unmanned heavy-load highway engineering according to claim 1 is characterized in that: The cooperative guide rail beam (4) includes at least two and the spacing between adjacent cooperative guide rail beams (4) is consistent with the wheel spacing of the vehicle (6). The cross section of the cooperative guide rail beam (4) is wide at the bottom and narrow at the top, and the top surface width is greater than the wheel width of the vehicle (6). The 5G sensor (43) and the guide magnetic nail (44) are configured to cooperatively guide the vehicle (6) located directly above the cooperative guide rail beam (4) to move, so that the wheels of the vehicle (6) are always located directly above the corresponding cooperative guide rail beam (4) during the movement.

3. The concealed track pavement structure for unmanned heavy-load highway engineering according to claim 2 is characterized in that: The cross section of the cooperative guide rail beam (4) is a convex structure, and the convex structure includes an upper step (41) and a lower step (42) arranged in the middle of the upper and lower parts, the width of the upper step (41) is greater than the width of the wheel of the vehicle (6), and the width of the lower step (42) is greater than the width of the upper step (41).

4. The concealed track pavement structure for unmanned heavy-load highway engineering according to claim 3 is characterized in that: The guide magnetic nail (44) array is arranged in the upper step (41) and the lower step (42) of the cooperative guide track beam (4), and the 5G sensor (43) is buried in the middle position of the guide magnetic nail (44) array.

5. The concealed track pavement structure for unmanned heavy-load highway engineering according to claim 3 or 4, characterized in that: The 5G sensor (43) is embedded in the transverse middle of the cooperative guide track beam (4), and the guide magnetic nails (44) are embedded on both sides of the 5G sensor (43).

6. The concealed track pavement structure for unmanned heavy-load highway engineering according to claim 1 or 2, characterized in that: The top surface rebound modulus of the roadbed (1) is not less than 100 MPa.

7. The concealed track pavement structure for unmanned heavy-load highway engineering according to claim 1 or 2, characterized in that: Transverse drainage pipes are arranged in an array along the highway direction in the graded crushed stone flexible base layer (3), the rear end of the transverse drainage pipes extending to the vicinity of the bottom of the cooperative guide rail beam, the front end being lower than the rear end and extending to the drainage ditch outside the pavement structure.

8. A vehicle travel cooperative guidance method based on a concealed track pavement structure, characterized by: The vehicle (6) receives signals from the 5G sensor (43) and the guiding magnetic nail (44) of the unmanned heavy-load highway engineering concealed track pavement structure according to any one of claims 1 to 7, and selects the following guidance mode according to whether or not the signal is received: When the 5G sensor (43) signal and the guide magnetic nail (44) signal are strong and can both be received by the vehicle (6), the vehicle (6) is configured to select both of them as the guidance signal or select either one of them as the guidance signal to control the two wheels of the vehicle to travel along the upper part of the cooperative guide rail beam (4); When one of the 5G sensor (43) signal and the guide magnetic nail (44) signal is weak or missing and cannot be received by the vehicle (6), the vehicle (6) is configured to select the other one as the guidance signal to control the two wheels of the vehicle to travel along the upper part of the cooperative guide rail beam (4); When both the 5G sensor (43) signal and the magnetic nail signal are lost, the vehicle (6) is configured to stop moving.

9. The vehicle moving cooperative guidance method based on a concealed track pavement structure according to claim 8, characterized in that: The vehicle (6) is configured to compare the strength of the 5G sensor (43) signal and the guide magnetic nail (44) signal in real time, and select the one with the stronger signal as the guidance signal.

10. The vehicle moving cooperative guidance method based on a concealed track pavement structure according to claim 9, characterized in that: The vehicle (6) is configured to select the stronger signal of the 5G sensor (43) signal and the guide magnetic nail (44) signal as the guidance signal, and select the weaker signal as the correction signal.

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