A vehicle-road cooperative perception assisted driving system and method of using the same

Abstract

The application relates to the field of road lanes, in particular to a vehicle-road cooperative perception auxiliary driving system of a magnetic variable lane and a use method thereof; a first auxiliary control module and a second auxiliary control module arranged in a third lane are used to output first magnetic signals and second magnetic signals according to waiting vehicle data in each lane, so that a vehicle terminal can output a direction indicating sign of the third lane when the signals are received; the first auxiliary control module and the second auxiliary control module are respectively formed by two direct current coils and two current commutators; the magnetic poles of the first electromagnetic signals and the second electromagnetic signals can be quickly changed by changing the flowing direction of the current, so that two modes of magnetic field signals can be emitted, and the magnetic poles of the magnetic field signals are opposite; the problem that the current driver is easy to ignore or misread the indicating direction transmitted by the variable lane in a passive mode, thereby causing vehicle traffic errors, is solved.

Description

Technical Field

[0001] This invention relates to the field of road lanes, specifically to a vehicle-road cooperative perception-assisted driving system with magnetic variable lanes and its usage method. Background Technology

[0002] A reversible lane is a lane whose direction can be changed at any time according to traffic flow. It is mainly set up at intersections and can flexibly adjust the flow of traffic according to the characteristics of traffic flow at different times, changing the direction of travel in the lane to alleviate traffic pressure. It is especially suitable for intersections that require time-based traffic management measures. Reversible lanes usually have a single direction of traffic flow at fixed times and cannot adjust their direction of travel at any time with changes in traffic flow. Some reversible lanes indicate their direction of travel through electronic displays, but drivers need to passively receive information while driving, which is easy for drivers to ignore or misread, thus causing vehicles to make mistakes. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a vehicle-road cooperative perception-assisted driving system and its usage method for magnetic variable lanes. This solves the problem that the current method of drivers passively receiving directional instructions from variable lanes is easily overlooked or misinterpreted by drivers, leading to vehicle errors.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] A magnetic variable lane vehicle-road cooperative perception-assisted driving system includes a first lane set on the ground, a second lane with different directional signs from the first lane, a third lane between the first lane and the second lane, and a lane control module for controlling changes in directional signs set in the road surface.

[0006] The lane control module includes a variable lane marker set on the third lane, a first auxiliary control module embedded in the road surface for transmitting a first magnetic signal, a second auxiliary control module embedded in the road surface for transmitting a second magnetic signal, and a signal receiving module installed in the vehicle for receiving the first and second magnetic signals. The first magnetic signal is used to control the direction indicator in the third lane to be the same as and remain unchanged from the first lane, and the second magnetic signal is used to control the direction indicator in the third lane to be the same as and remain unchanged from the second lane.

[0007] Preferably, the first auxiliary control module and the second auxiliary control module have the same structure. The first auxiliary control module includes two DC coils buried in the third lane and two current commutators that supply power to the two DC coils respectively.

[0008] Preferably, the direction of the magnetic field generated by the DC coil from the N pole to the S pole is perpendicular to the ground, and the DC coil is flat.

[0009] Preferably, the signal receiving module is an on-board gaussmeter or Hall magnetic field detector installed in the vehicle.

[0010] Preferably, the first auxiliary control module and the second auxiliary control module are located at the markings on both sides of the third lane.

[0011] Preferably, the first auxiliary control module and the second auxiliary control module are set at a certain interval along the direction of the third lane, and the laying length of the first auxiliary control module and the second auxiliary control module is greater than the length of the solid line of the third lane at the intersection.

[0012] The present invention also provides a method for using a vehicle-road cooperative perception-assisted driving system with variable lanes, specifically including the following steps:

[0013] S1. The background process retrieves waiting vehicles in the first, second, and third lanes.

[0014] S2. Based on the waiting vehicle data of the first lane, the second lane and the third lane, the background generates a first control signal for the lane control module to change the direction indicator to ensure that the waiting vehicles in the first lane, the second lane and the third lane are balanced within a unit of time.

[0015] S3. The lane control module sends the corresponding first magnetic signal and second magnetic signal to the signal receiving module of the vehicle in the second lane according to the first control signal.

[0016] S4. The vehicle's signal receiving module receives the first magnetic signal and the second magnetic signal, and sends the first magnetic signal and the second magnetic signal to the vehicle terminal for processing, and then outputs the direction indicator sign information of the third lane.

[0017] Compared with the prior art, the present invention provides a vehicle-road cooperative perception-assisted driving system and its usage method with magnetic variable lanes, which has the following beneficial effects:

[0018] 1. By setting up a first auxiliary control module and a second auxiliary control module on the road surface of the third lane, the first magnetic signal and the second magnetic signal are output according to the waiting vehicle data in each lane, so that when the vehicle terminal receives the signal, it can output the direction indicator sign of the third lane, thereby enabling the driver to obtain the direction indicator sign information of the third lane.

[0019] 2. The present invention uses a first auxiliary control module and a second auxiliary control module, which are respectively composed of two DC coils and two current commutators. By changing the direction of current flow, the magnetic poles of the first electromagnetic signal and the second electromagnetic signal can be quickly changed, thereby generating two types of magnetic field signals with opposite magnetic poles. The signals are simple and stable.

[0020] 3. This invention can adjust the direction of variable lanes in a timely and rapid manner according to the traffic flow distribution of different lanes on the road, realizing real-time control and diversion of each lane. Traditional variable lanes allocate traffic flow direction according to time period. This invention overcomes the problem that the untimely adjustment of traditional variable lanes easily causes traffic congestion.

[0021] 4. This invention can store traffic information of variable lanes through the lane control module, and use the first and second magnetic signals emitted by the lane control module to guide vehicles traveling in different directions at different times, under different road conditions, and with different traffic flow densities to enter the third lane. This changes the traditional driving behavior of drivers passively receiving road information and then driving the vehicle to choose a lane. This method actively guides vehicles to enter the variable lane as needed through magnetic signals, avoiding the problems of passive, easily overlooked, and misreading traditional guidance methods. Attached Figure Description

[0022] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0023] Figure 1 This is a structural block diagram of the vehicle-road cooperative perception-assisted driving system with magnetic variable lanes of the present invention;

[0024] Figure 2 This is a schematic diagram of the variable lane vehicle-road cooperative perception-assisted driving system of the present invention.

[0025] Figure 3 This is a schematic diagram of the first auxiliary control module of the present invention;

[0026] Figure 4 This is a flowchart illustrating the usage method of the variable lane vehicle-road cooperative perception-assisted driving system of the present invention.

[0027] In the diagram: 1. First lane; 2. Second lane; 3. Third lane; 4. Lane control module; 41. Variable lane marker; 42. First auxiliary control module; 421. DC coil; 422. Current commutator; 43. Second auxiliary control module; 44. Signal receiving module. Detailed Implementation

[0028] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. This will allow for a full understanding and implementation of how the present application uses technical means to solve technical problems and achieve technical effects.

[0029] Those skilled in the art will understand that all or part of the steps in the methods of the following embodiments can be implemented by a program instructing related hardware. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Moreover, this application can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0030] The development of driver assistance technology has become one of the important strategic directions in my country's transportation sector. By continuously enhancing the intelligence of the transportation system, a road traffic system that matches modern transportation needs can be created. Currently, the storage and transmission of road traffic information through magnetic coding units can effectively assist in the autonomous driving of vehicles. However, traditionally, magnetic materials (such as neodymium magnets) are embedded in the road surface to guide vehicles. However, the magnetic poles of these magnets are fixed, meaning that the magnetic signal they carry is single and unchangeable. This makes them unsuitable for storing and transmitting traffic information in multi-functional, multi-directional lanes, and also unsuitable for effectively guiding vehicles on these roads. Therefore, an invention has been made to improve this technology and enable its use in variable lanes.

[0031] To address the problem that current methods of passively receiving directional instructions from variable lanes can easily lead to drivers ignoring or misinterpreting them, resulting in vehicle errors, this invention provides a vehicle-road cooperative perception-assisted driving system with magnetic variable lanes. The system includes a first lane 1 positioned on the ground, a second lane 2 with different directional markings from the first lane 1, and a third lane 3 positioned between the first lane 1 and the second lane 2. A lane control module 4 is installed within the road surface to control changes in the directional markings. The following description uses the first lane 1 as a left-turn lane and the third lane 3 as a right-turn lane as an example.

[0032] Lane control module 4 includes a variable lane marking 41 installed on the third lane 3. The variable lane marking 41 is installed on the road surface, for example, changing the markings on the third lane 3 to a sawtooth pattern to remind the driver that they have entered a variable lane. A first auxiliary control module 42 for emitting a first magnetic signal is embedded in the road surface, and a second auxiliary control module 43 for emitting a second magnetic signal is also embedded in the road surface. A signal receiving module 44 for receiving the first and second magnetic signals is installed in the vehicle, so that the vehicle actively receives the directional indicator of the third lane 3 and displays it on the instrument panel area inside the vehicle, thereby selecting the lane to enter as needed. The first magnetic signal is used to control the directional indicator in the third lane 3 to be the same as or remain unchanged with the first lane 1. The second magnetic signal is used to control the directional indicator in the third lane 3 to be the same as or remain unchanged with the second lane 2. For example, when the first lane 1 is a left-turn lane and there are many waiting vehicles in it, the first magnetic signal controls the directional indicator in the third lane 3 to be the same as the first lane 1, that is, both become left-turn lanes. Similarly, the second magnetic signal can also control the directional indicator in the third lane 3 to be the same as or remain unchanged with the second lane 2, that is, become a right-turn lane. The second lane 2 itself can realize arbitrary switching of the directional indicator to go straight, right-turn and left-turn.

[0033] Since the first auxiliary control module 42 and the second auxiliary control module 43 are buried in the ground, their reliability is extremely important, ensuring that they can always actively transmit the first and second magnetic signals during years of use. A simple and reliable structure for the first auxiliary control module 42 and the second auxiliary control module 43 is provided below. The structures of the first auxiliary control module 42 and the second auxiliary control module 43 are identical. The first auxiliary control module 42 includes two DC coils 421 buried in the second lane 2, and two current commutators 422 supplying power to the two DC coils 421 respectively. By changing the direction of the current in the DC coils 421 through the current commutators 422, the magnetic field at both ends of the DC coils 421 can be changed to either the N pole or the S pole. That is, the two DC coils 421 can exhibit three magnetic pole combinations: NN, NS, and SS, corresponding to the direction indicator signs for straight ahead, left turn, or right turn, thereby enabling the vehicle to output information that the third lane 3 is a straight-ahead lane, a left-turn lane, or a right-turn lane.

[0034] The magnetic poles generated on both sides of the DC coil 421 are opposite. In order to ensure the stability of the signal receiving module 44 when detecting the magnetic poles, the magnetic poles that need to be detected by the DC coil 421 need to be as close as possible to the signal receiving module 44. Therefore, the direction of the magnetic field generated by the DC coil 421 from the N pole to the S pole is perpendicular to the ground, and the DC coil 421 is flat. This ensures the accuracy of the signal receiving module 44 in detecting the magnetic poles of the DC coil 421. It is buried between the upper layer and the middle layer. Compared with the traditional spring-shaped DC coil 421, it is not easily damaged under vehicle load and will not affect the road performance of the road surface.

[0035] The signal receiving module 44 is used to detect the magnetic pole at one end of the DC coil 421. To achieve this function, the signal receiving module 44 is an on-board gaussmeter or Hall magnetic field detector installed in the vehicle. After processing the detected signal, the signal receiving module 44 outputs information on whether the current third lane 3 is a straight lane, a left-turn lane, or a right-turn lane.

[0036] In order to ensure that the first magnetic signal and the second magnetic signal output by the first auxiliary control module 42 and the second auxiliary control module 43 can be received by vehicles in the third lane 3, and can also be received by vehicles in adjacent lanes as much as possible, so that adjacent lanes know the driving direction of vehicles in the third lane 3 and ensure driving safety, the first auxiliary control module 42 and the second auxiliary control module 43 are respectively located at the markings on both sides of the third lane 3, that is, buried in the road surface at the markings on both sides of the third lane 3.

[0037] To ensure that vehicles can receive the first and second magnetic signals emitted by the first auxiliary control module 42 and the second auxiliary control module 43 along the third lane 3 in a timely manner, and thus select the corresponding lane for lane changing, while ensuring the continuity of the first and second magnetic signals, the first auxiliary control module 42 and the second auxiliary control module 43 are set at a certain interval along the direction of the third lane 3. This interval is generally within the range of 2m-5m. The laying length of the first auxiliary control module 42 and the second auxiliary control module 43 is greater than the length of the solid line of the third lane 3 at the intersection, and is generally within the range of 50m-100m from the intersection.

[0038] The present invention also provides a method for using a variable lane vehicle-road cooperative perception-assisted driving system, which specifically includes the following steps:

[0039] S1. The background process retrieves waiting vehicles in the first, second, and third lanes.

[0040] S2. Based on the waiting vehicle data of the first lane, the second lane and the third lane, the background generates a first control signal for the lane control module to change the direction indicator to ensure that the waiting vehicles in the first lane, the second lane and the third lane are balanced within a unit of time.

[0041] S3. The lane control module sends the corresponding first magnetic signal and second magnetic signal to the signal receiving module of the vehicle in the second lane according to the first control signal.

[0042] S4. The vehicle's signal receiving module receives the first magnetic signal and the second magnetic signal, and sends the first magnetic signal and the second magnetic signal to the vehicle terminal for processing, and then outputs the direction indicator sign information of the third lane.

[0043] The above embodiments provide a detailed description of the present invention. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A method of using a vehicle-road cooperative perception-assisted driving system with a magnetic variable lane, comprising a first lane (1) set on the ground, and a second lane (2) with a different direction indicator sign from the first lane (1), and a third lane (3) set between the first lane (1) and the second lane (2), and a lane control module (4) for controlling the change of direction indicator sign is set in the road surface. The lane control module (4) includes a variable lane marker (41) set on the third lane (3), a first auxiliary control module (42) for transmitting a first magnetic signal is embedded in the road surface, a second auxiliary control module (43) for transmitting a second magnetic signal is also embedded in the road surface, and a signal receiving module (44) for receiving the first magnetic signal and the second magnetic signal is installed in the vehicle. The first magnetic signal is used to control the direction indicator in the third lane (3) to be the same as and remain unchanged from the first lane (1), and the second magnetic signal is used to control the direction indicator in the third lane (3) to be the same as and remain unchanged from the second lane (2). The first auxiliary control module (42) and the second auxiliary control module (43) have the same structure. The first auxiliary control module (42) includes two DC coils (421) buried in the third lane (3) and two current commutators (422) that supply power to the two DC coils (421) respectively. By changing the direction of the current in the DC coils (421) through the current commutators (422), the magnetic field at both ends of the DC coils (421) is changed to be either N pole or S pole, so that the two DC coils (421) have three magnetic pole combination modes of NN, NS and SS, which correspond to the direction indicator signs for straight, left turn and right turn. Specifically, the steps include the following: S1. The background system obtains the traffic flow of the first lane, the second lane, and the third lane; S2. Based on the waiting vehicle data of the first lane, the second lane and the third lane, the background generates a first control signal for the lane control module to change the direction indicator to ensure the balance of traffic flow in the first lane, the second lane and the third lane. S3. The lane control module sends the corresponding first magnetic signal and second magnetic signal to the signal receiving module of the vehicle in the second lane according to the first control signal. S4. The vehicle's signal receiving module receives the first magnetic signal and the second magnetic signal, and sends the first magnetic signal and the second magnetic signal to the vehicle terminal for processing, and then outputs the direction indicator sign information of the third lane.

2. The method of using the driver assistance system according to claim 1, characterized in that, The direction of the magnetic field generated by the DC coil (421) from the N pole to the S pole is perpendicular to the ground, and the DC coil is flat.

3. The method of using the driver assistance system according to claim 1, characterized in that, The signal receiving module (44) is an on-board gaussmeter or Hall magnetic field detector installed in the vehicle.

4. The method of using the driver assistance system according to claim 1, characterized in that, The first auxiliary control module (42) and the second auxiliary control module (43) are located at the markings on both sides of the third lane (3).

5. The method of using the driver assistance system according to claim 1, characterized in that, The first auxiliary control module (42) and the second auxiliary control module (43) are set at a certain interval along the direction of the third lane (3), and the laying length of the first auxiliary control module (42) and the second auxiliary control module (43) is greater than the length of the solid line of the third lane (3) at the intersection.

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