Vehicle-road collaborative perception auxiliary driving system of magnetic variable lane and use method

Abstract

The invention relates to the field of road lanes, in particular to a vehicle-road collaborative perception auxiliary driving system of a magnetic variable lane and a use method. Through a first auxiliary control module and a second auxiliary control module which are arranged in the road surface of a third lane, a first magnetic signal and a second magnetic signal are output according to waiting vehicle data in each lane, so that a vehicle terminal can output a direction indication sign of the third lane when receiving the signals; through a first auxiliary control module and a second auxiliary control module which are respectively formed by two direct-current coils and two current commutators, the magnetic poles of a first electromagnetic signal and a second electromagnetic signal can be quickly changed by changing the flowing direction of current, so that magnetic field signals in two modes can be emitted, and the magnetic poles of the magnetic field signals are opposite; the problem that at present, the mode that a driver passively receives the indication direction transmitted by the variable lane is prone to being neglected or misread by the driver, and consequently vehicle passing errors are caused is solved.

Description

Technical Field

[0001] The present invention relates to the field of road lanes, and in particular to a vehicle-road cooperative perception assisted driving system with a magnetic variable lane and a use method thereof. Background Art

[0002] A variable lane refers to a lane that can change its direction at any time according to traffic flow. It is mainly set up at intersections and can flexibly control the flow direction according to the characteristics of vehicle flow in different time periods, change the lane's driving direction, and relieve traffic pressure. It is especially suitable for intersections that need to take time-based traffic management measures. Variable lanes usually have a single traffic direction at a fixed time period and cannot adjust their direction at any time as traffic changes. Some variable lanes indicate their direction through electronic display screens, but they require the driver to passively receive information during driving, which can easily be ignored or misread by the driver, thus causing vehicle traffic errors. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a magnetic variable lane vehicle-road cooperative perception assisted driving system and a method of use, which solves the problem that the current method of drivers passively accepting the indicated direction transmitted by the variable lane is easily ignored or misread by the driver, thus causing the vehicle to pass incorrectly.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A magnetic variable lane vehicle-road cooperative perception assisted driving system, comprising a first lane arranged on the ground, a second lane with a different direction indicator sign from the first lane, a third lane arranged between the first lane and the second lane, and a lane control module for controlling the change of the direction indicator sign arranged in the road surface;

[0006] The lane control module includes a variable lane marking arranged on the third lane, a first auxiliary control module for emitting a first magnetic signal is buried in the road surface, a second auxiliary control module for emitting a second magnetic signal is also buried in the road surface, and a signal receiving module for receiving the first magnetic signal and the second magnetic signal is arranged in the vehicle, the first magnetic signal is used to control the direction indication sign in the third lane to be the same as and remain unchanged with the first lane, and the second magnetic signal is used to control the direction indication sign in the third lane to be the same as and remain unchanged with the second lane.

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

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

[0009] Preferably, the signal receiving module is a vehicle-mounted Gauss meter or a Hall magnetic field identification instrument installed in the vehicle.

[0010] Preferably, the first auxiliary control module and the second auxiliary control module are respectively 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 arranged 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 solid line length of the third lane at the intersection.

[0012] 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:

[0013] S1, the background obtains waiting vehicles in the first lane, the second lane and the third lane;

[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 indication sign to ensure that the waiting vehicles in the first lane, the second lane and the third lane are balanced within a unit 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 signal receiving module of the vehicle receives the first magnetic signal and the second magnetic signal, sends the first magnetic signal and the second magnetic signal to the vehicle terminal for processing, and then outputs the direction indication sign information of the third lane.

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

[0018] 1. By setting the first auxiliary control module and the second auxiliary control module in 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 the vehicle terminal can output the direction indication sign of the third lane when receiving the signal, so that the driver can obtain the direction indication sign information of the third lane.

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

[0020] 3. The present invention can timely and quickly adjust the lane direction of the variable lane according to the traffic distribution of different lanes on the road surface, thereby realizing real-time control and diversion of each lane. The traditional variable lane allocates the driving direction of the traffic according to time periods. The present invention overcomes the problem that the traditional variable lane is not adjusted in time and easily causes traffic congestion.

[0021] 4. The present invention can store the traffic information of the variable lane through the lane control module, and use the first magnetic signal and the second magnetic signal emitted by the lane control module to guide vehicles of different driving directions under different time periods, different road conditions, and different traffic density conditions to enter the third lane for passage. This changes the traditional driving behavior of drivers passively accepting road information and then driving the vehicle to select a lane for passage. The method actively guides the vehicle to enter the variable lane as needed through magnetic signals, avoiding the problems of traditional guidance methods being passive, easy to be ignored, and misread. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present 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 A schematic diagram of a lane-changing vehicle-road cooperative perception assisted driving system according to the present invention;

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

[0026] Figure 4 The present invention is a flow chart of a method for using the variable lane vehicle-road cooperative perception assisted driving system.

[0027] In the figure: 1, first lane; 2, second lane; 3, third lane; 4, lane control module; 41, variable lane marking; 42, first auxiliary control module; 421, DC coil; 422, current commutator; 43, second auxiliary control module; 44, signal receiving module. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0029] Those skilled in the art can understand that all or part of the steps in the following embodiments can be completed by instructing the relevant hardware through a program, so the present application can be in the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present application can be in 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 codes.

[0030] The development of assisted driving technology has become one of the important strategic directions in my country's transportation field. By continuously enhancing the intelligence of the transportation system and creating a road traffic system that matches modern transportation needs, the magnetic coding unit is now used to store and transmit road traffic information, which can effectively assist the automatic driving of vehicles. However, traditionally, magnetic materials (neodymium magnets, etc.) are usually buried in the road surface to serve as magnetic units to guide vehicles. However, the magnetic poles of these magnets are fixed, that is, the magnetic numbers they carry are single and cannot be changed. They cannot be used for the storage and transmission of traffic information with multi-functional and multi-directional lanes, nor can they effectively guide vehicles on these roads. Therefore, the invention improves them so that they can be used for variable lanes.

[0031] In order to solve the problem that the current method of passively accepting the direction indication transmitted by the variable lane by the driver is easily ignored or misread by the driver, thereby causing the vehicle to pass incorrectly, the present invention provides a magnetic variable lane vehicle-road cooperative perception assisted driving system, including a first lane 1 arranged on the ground, and also including a second lane 2 with a direction indication sign different from the first lane 1, and a third lane 3 is also arranged between the first lane 1 and the second lane 2. A lane control module 4 for controlling the change of the direction indication sign is arranged in the road surface. The following description takes the first lane 1 as a left turn lane and the third lane 3 as a right turn lane as an example;

[0032] The lane control module 4 includes a variable lane marker 41 arranged on the third lane 3. The variable lane marker 41 is arranged on the road surface. For example, the marking on the third lane 3 is changed to a zigzag marking to remind the driver that he has entered the variable lane. A first auxiliary control module 42 for emitting a first magnetic signal is buried in the road surface. A second auxiliary control module 43 for emitting a second magnetic signal is also buried in the road surface. A signal receiving module 44 for receiving the first magnetic signal and the second magnetic signal is arranged in the vehicle, so that the vehicle actively receives the direction indication sign of the third lane 3 and displays it through the instrument panel area in the vehicle, so as to select the lane to enter according to the demand. The first magnetic signal is used to control the direction indicator sign in the third lane 3 to be the same as that in the first lane 1 and remain unchanged, and the second magnetic signal is used to control the direction indicator sign in the third lane 3 to be the same as that in the second lane 2 and remain unchanged. For example, when the first lane 1 is a left-turn lane and there are many waiting vehicles therein, the first magnetic signal controls the direction indicator sign in the third lane 3 to be the same as that in the first lane 1, that is, both become left-turn lanes. Similarly, the second magnetic signal can also control the direction indicator sign in the third lane 3 to be the same as that in the second lane 2 and remain unchanged, that is, it becomes a right turn. The second lane 2 itself can realize arbitrary switching of the direction indicator sign to go straight, turn right and turn left.

[0033] Since the first auxiliary control module 42 and the second auxiliary control module 43 are buried in the ground, the reliability of the first auxiliary control module 42 and the second auxiliary control module 43 is extremely important, so that they can always complete the active sending of the first magnetic signal and the second magnetic signal during the years of use. The following provides a simple and reliable structure of the first auxiliary control module 42 and the second auxiliary control module 43. 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 second lane 2, and two current commutators 422 that respectively supply power to the two DC coils 421, so that the current direction in the DC coil 421 is changed by the current commutator 422, and the magnetic field at both ends of the DC coil 421 can be changed to the N pole or the S pole, that is, the two DC coils 421 can have three magnetic pole combinations of NN, NS and SS, and correspond to the direction indication signs of straight, left turn or right turn, so that the vehicle outputs the information that the third lane 3 is a straight 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 distance between the magnetic poles to be detected by the DC coil 421 and the signal receiving module 44 is made short. Therefore, the direction from the N pole to the S pole of the magnetic field generated by the DC coil 421 is perpendicular to the ground, and the DC coil 421 is flat in shape, thereby ensuring the accuracy of the signal receiving module 44 when 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 the action of 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 a vehicle-mounted Gaussmeter or Hall magnetic field identification instrument installed in the vehicle. The signal receiving module 44 processes the detected signal and 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 the vehicles in the third lane 3 while also being received by the vehicles in the adjacent lanes as much as possible, so that the adjacent lanes know the driving direction of the 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] In order to ensure that the vehicle can timely receive the first magnetic signal and the second magnetic signal emitted by the first auxiliary control module 42 and the second auxiliary control module 43 along the third lane 3, thereby selecting the corresponding lane for lane change, while ensuring the continuity of the first magnetic signal and the second magnetic signal, the first auxiliary control module 42 and the second auxiliary control module 43 are arranged at a certain distance along the direction of the third lane 3, and the distance 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 solid line length of the third lane 3 at the intersection, 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 obtains waiting vehicles in the first lane, the second lane and the third lane;

[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 indication sign to ensure that the waiting vehicles in the first lane, the second lane and the third lane are balanced within a unit 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 signal receiving module of the vehicle receives the first magnetic signal and the second magnetic signal, sends the first magnetic signal and the second magnetic signal to the vehicle terminal for processing, and then outputs the direction indication sign information of the third lane.

[0043] The above implementation methods have been described in detail. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A magnetic variable lane vehicle-road cooperative perception assisted driving system, comprising a first lane (1) arranged on the ground, and a second lane (2) having a direction indicator different from that in the first lane (1), characterized in that: A third lane (3) is also provided between the first lane (1) and the second lane (2), and a lane control module (4) for controlling the change of the direction indication sign is provided in the road surface; The lane control module (4) comprises a variable lane mark (41) arranged on the third lane (3), a first auxiliary control module (42) for emitting a first magnetic signal is buried in the road surface, a second auxiliary control module (43) for emitting a second magnetic signal is also buried in the road surface, and a signal receiving module (44) for receiving the first magnetic signal and the second magnetic signal is arranged in the vehicle, the first magnetic signal is used to control the direction indication sign in the third lane (3) to be the same as and remain unchanged with the first lane (1), and the second magnetic signal is used to control the direction indication sign in the third lane (3) to be the same as and remain unchanged with the second lane (2).

2. The driving assistance system according to claim 1, characterized in that: The first auxiliary control module (42) and the second auxiliary control module (43) have the same structure. The first auxiliary control module (42) comprises two DC coils (421) buried in the third lane (3), and two current commutators (422) for respectively supplying power to the two DC coils (421).

3. The driving assistance system according to claim 2, characterized in that: The direction from the N pole to the S pole of the magnetic field generated by the DC coil (421) is perpendicular to the ground, and the DC coil is in a flat shape.

4. The driving assistance system according to claim 1, characterized in that: The signal receiving module (44) is a vehicle-mounted Gauss meter or a Hall magnetic field identification instrument installed in the vehicle.

5. The driving assistance system according to claim 1, characterized in that: 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).

6. The driving assistance system according to claim 1, characterized in that: The first auxiliary control module (42) and the second auxiliary control module (43) are arranged at a certain distance 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 solid line length of the third lane (3) at the intersection.

7. A method for using the assisted driving system according to any one of claims 1 to 6, characterized in that: The specific steps include: S1, the background obtains the traffic volume 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 indication sign to ensure the balance of vehicle 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 signal receiving module of the vehicle receives the first magnetic signal and the second magnetic signal, sends the first magnetic signal and the second magnetic signal to the vehicle terminal for processing, and then outputs the direction indication sign information of the third lane.

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