Narrow road meeting prompting system and meeting prompting method

Abstract

The invention discloses a narrow road meeting prompting system and method, and the system comprises a vehicle detection module which is configured to obtain vehicle information, and the vehicle information comprises vehicle arrival time, speed, number, license plate, and vehicle type; the dynamic regulation and control module is configured to generate a passing control instruction based on the vehicle information, and the passing control instruction is used for indicating the passing right of an opposite vehicle or a vehicle in the same direction for a narrow road; and the interactive prompt module is configured to display the passing control instruction at the two ends of the narrow road based on the control instruction.

Description

Technical Field

[0001] The present invention relates to the technical field of road traffic, and particularly to a narrow-road meeting vehicle prompting system and a meeting vehicle prompting method. Background Art

[0002] In recent years, with the development of the economy, automobiles have become a standard for Chinese families, and the number of vehicles in China has increased exponentially. Especially, the ownership of automobiles in rural families has increased rapidly, which has formed a bottleneck with the current rural road traffic situation. Rural roads are basically single-lane and narrow roads for one vehicle, with long roads and lush obstacles on both sides. Coupled with the fast acceleration of current vehicles, it is very easy to cause traffic jams and safety accidents. On rugged mountain roads, the roads are generally relatively narrow and it is impossible to know oncoming vehicles from a long distance. For existing convex lenses, the images presented in the mirrors for oncoming vehicles from a long distance are very small, and it is very likely to collide at the moment of meeting. The same is true for T-junction traffic. Because the field of view is narrow, it is very difficult for drivers to judge whether there are vehicles passing through the intersecting roads, which causes great trouble to traffic safety. Every year, huge personal safety and property losses are caused by such traffic accidents. Summary of the Invention

[0003] Aiming at the above-mentioned prior art, the present invention aims to provide a narrow-road meeting vehicle prompting system and a meeting vehicle prompting method, mainly to solve the technical problems existing in the above background art.

[0004] To achieve the above object, the technical solution of the embodiment of the present invention is realized as follows:

[0005] The first aspect of the present invention discloses a narrow-road meeting vehicle prompting system, and the system includes:

[0006] A vehicle detection module, which is configured to obtain vehicle information, and the vehicle information includes vehicle arrival time, speed, quantity, license plate, and vehicle type;

[0007] A dynamic regulation module, which is configured to generate a traffic control instruction based on the vehicle information, and the traffic control instruction is used to indicate the right of way for oncoming vehicles or same-direction vehicles on a narrow road;

[0008] An interactive prompting module, which is configured to display the traffic control instruction at both ends of the narrow road based on the control instruction.

[0009] Optionally, the vehicle detection module includes an oncoming detection unit and a same-direction detection unit. The oncoming detection unit includes oncoming detection points A and B, and the same-direction detection unit includes same-direction detection points A and B. The oncoming detection point A and the same-direction detection point A are both set in front of the narrow road entrance and are at a certain distance from the narrow road. The oncoming detection point B and the same-direction detection point B are set at the narrow road exit. At least one of the following sensors is provided at the oncoming detection point A, the oncoming detection point B, the same-direction detection point A, and the same-direction detection point B: inductive loop, optoelectronic switch, infrared sensor, pressure sensor, intelligent camera.

[0010] Optionally, the interactive prompt module includes a display screen and / or a voice prompt device. The display screen is used to display the traffic control instruction, and the voice prompt device is used to play the traffic control instruction.

[0011] Optionally, the dynamic regulation module includes:

[0012] A comparison unit configured to compare the vehicle arrival times detected at the oncoming detection point A and the same-direction detection point A, and to compare the vehicle types detected at the oncoming detection point A and the same-direction detection point A;

[0013] A first traffic instruction generation unit configured to generate a first traffic control instruction based on the traffic jam situation detected by the intelligent camera at the narrow road entrance and according to the comparison result of the comparison unit.

[0014] Optionally, generating a first traffic control instruction based on the traffic jam situation detected by the intelligent camera at the narrow road entrance and according to the comparison result of the comparison unit specifically includes:

[0015] If the intelligent camera detects that the number of vehicles waiting to pass at the narrow road entrance is less than the threshold, then compare the difference in the arrival timestamps of oncoming vehicles and same-direction vehicles. If the difference in the arrival timestamps of oncoming vehicles and same-direction vehicles is greater than the preset threshold, give priority to releasing the vehicle that arrives first;

[0016] If the timestamp difference is less than or equal to the threshold, reassign the traffic order according to the vehicle size and priority.

[0017] Optionally, reassigning the traffic order according to the vehicle size and priority specifically includes: calculating the comprehensive priority according to the weight formula, and the weight formula is:

[0018]

[0019] where α and ρ are preset weight coefficients, and L is the vehicle length.

[0020] Optionally, the dynamic regulation module further includes a vehicle attribute determination unit, which has a vehicle database. Based on the vehicle database and the vehicle type identified by the vehicle detection module, the corresponding priority and vehicle length are obtained.

[0021] Optionally, when the number of consecutive passing vehicles in the same / directional lanes reaches the preset same / directional queue threshold, the entry of vehicles on this side is suspended, and the passing rights of oncoming vehicles are preferentially released.

[0022] Optionally, the dynamic regulation module further includes a second passing instruction generation unit. When the intelligent camera detects that the number of vehicles waiting to pass at the narrow road entrance is greater than the threshold, the second passing instruction generation unit generates a second passing control instruction based on the quantum annealing algorithm. The specific steps for generating the second passing control instruction based on the quantum annealing algorithm are as follows:

[0023] Establish an optimization function that minimizes the total waiting time and speed adjustment cost:

[0024]

[0025] Establish a penalty term:

[0026]

[0027] Establish constraints:

[0028]

[0029] Synthesize the Hamiltonian H cost = H1 + H2, and solve for the optimal solution X of the Hamiltonian i,t ;

[0030] where N represents the total number of queuing vehicles, ω i represents the priority weight of vehicle i, t represents the time of the timestamp, x i,t represents the timestamp of the i-th oncoming vehicle, x j,t represents the timestamp of the j-th vehicle in the same direction, V i is the current speed of the vehicle, V opt is the recommended speed for passing through the narrow road, λ is the adjustment coefficient of the speed adjustment cost, T max represents the upper limit of the optimized time range, γ represents the oncoming conflict penalty coefficient, A represents the set of oncoming vehicles, B represents the set of vehicles in the same direction, d i represents the length of the initial position of vehicle i from the narrow road entrance, d j represents the length of the initial position of vehicle j from the narrow road entrance, s safe represents the minimum safe distance between two consecutive vehicles;

[0031] Based on the optimal solution Xi,t Output the second traffic control instruction.

[0032] A second aspect of the present invention discloses a narrow-road meeting vehicle prompting method, which is applied to the narrow-road meeting vehicle prompting system described in any one of the foregoing. The method includes the following steps:

[0033] Obtain vehicle information, where the vehicle information includes vehicle arrival time, speed, quantity, license plate, and vehicle type;

[0034] If the intelligent camera detects that the number of vehicles waiting to pass at the narrow-road entrance is less than the threshold, generate a first traffic control instruction according to the comparison result of the comparison unit;

[0035] When the intelligent camera detects that the number of vehicles waiting to pass at the narrow-road entrance is greater than the threshold, generate a second traffic control instruction;

[0036] Display the first traffic control instruction / second traffic control instruction at the oncoming entrance / same-direction entrance of the narrow road.

[0037] The beneficial effects of the present invention are as follows: By accurately obtaining key information such as the arrival time, speed, quantity, license plate, and type of vehicles through the vehicle detection module, and using the dynamic regulation module to intelligently generate traffic control instructions, efficient management of narrow-road meeting vehicles is achieved. This system can not only effectively reduce the waiting time during vehicle meeting, reduce the risk of traffic conflicts, and improve road traffic efficiency, but also flexibly adjust the traffic plan in complex scenarios such as continuous arrival of multiple vehicles, priority passage of emergency vehicles, and handling of faulty vehicles to ensure smooth and safe traffic. The multi-sensor fusion technology adopted improves the accuracy and reliability of vehicle detection, further optimizes the traffic plan, and realizes global optimal control; the use of the interactive prompt module provides intuitive and real-time traffic information for drivers and enhances the driving experience. In addition, this system also has good scalability and adaptability, can be flexibly configured and upgraded according to different road environments and traffic needs, and has high practical value and broad application prospects. Description of the Drawings

[0038] Figure 1 It is a module schematic diagram of a narrow-road meeting vehicle prompting system in Embodiment 1 of the present application;

[0039] Figure 2 It is a schematic diagram of the implementation scenario in the embodiment of the present application;

[0040] Figure 3 It is a module schematic diagram of a narrow-road meeting vehicle prompting system in Embodiment 2 of the present application;

[0041] Figure 4 It is the narrow-road meeting vehicle prompting method in Embodiment 3 of the present application. Detailed Embodiments

[0042] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings of the specification and specific embodiments. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. In the following description, the expression "some embodiments" is described, which describes a subset of all possible embodiments. However, it should be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments and can be combined with each other without conflict.

[0043] In the following description, a large number of specific details are given to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present invention, some technical features well known in the art are not described.

[0044] It should be understood that the present invention can be implemented in different forms and should not be construed as limited to the embodiments presented herein. On the contrary, providing these embodiments will make the disclosure thorough and complete, and will fully convey the scope of the present invention to those skilled in the art. And the purpose of the terms used herein is only to describe specific embodiments and is not a limitation of the present invention. When used herein, the singular forms "a", "an" and "the" are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms "comprising" and / or "including", when used in this specification, determine the presence of the described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups. When used herein, the term "and / or" includes any and all combinations of the related listed items.

[0045] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "inner", "outer", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation manner.

[0046] To thoroughly understand the present invention, detailed structures will be presented in the following description to illustrate the technical solutions proposed by the present invention. The optional embodiments of the present invention are described in detail as follows. However, in addition to these detailed descriptions, the present invention may also have other implementation manners.

[0047] Embodiment 1

[0048] Please refer to the attached Figures 1 to 2 , a narrow - road meeting - vehicle prompt system is disclosed in the first aspect of the present invention. The system includes:

[0049] A vehicle detection module, which is configured to obtain vehicle information, and the vehicle information includes vehicle arrival time, speed, quantity, license plate, and vehicle type;

[0050] A dynamic regulation module, which is configured to generate a traffic control instruction based on the vehicle information, and the traffic control instruction is used to indicate the right - of - way of oncoming vehicles or same - direction vehicles for the narrow road;

[0051] An interactive prompt module, which is configured to display the traffic control instruction at both ends of the narrow road based on the control instruction.

[0052] Specifically, the vehicle detection module provided in the present application is deployed at the entrances and exits on both sides of the narrow road, and obtains vehicle information in real time through induction coils, intelligent cameras or millimeter - wave radars, including vehicle arrival time, driving speed, queuing quantity, license plate and vehicle type. For example, such as ordinary vehicles, ambulances or public transportation vehicles. The vehicle detection module transmits the data to the dynamic regulation module through wired or wireless networks to ensure the real - time and accuracy of the information;

[0053] Based on the real - time data provided by the vehicle detection module, the dynamic regulation module executes the following logic to generate a traffic control instruction:

[0054] If the arrival - time difference between oncoming vehicles and same - direction vehicles exceeds a preset threshold, give priority to releasing the party that arrives first;

[0055] If the time difference is less than the threshold, dynamically allocate the right - of - way according to the vehicle - type priority;

[0056] An interactive prompt module including an LED display screen and a voice broadcast device is set on both sides of the narrow road to display the instruction generated by the dynamic regulation module in real time. For example: when oncoming vehicles obtain the right - of - way, the display screen shows "Oncoming vehicles are passing, please wait"; if the vehicles on this side can pass, it shows "Vehicles on this side, please pass, speed limit 20 km / h", and is supplemented with voice prompts; for special vehicles such as ambulances, an additional warning message "Emergency vehicles have priority to pass" is displayed.

[0057] In some embodiments, the vehicle detection module includes an oncoming detection unit and a same-direction detection unit. The oncoming detection unit includes oncoming detection point A and oncoming detection point B, and the same-direction detection unit includes same-direction detection point A and same-direction detection point B. Both oncoming detection point A and same-direction detection point A are arranged in front of the narrow road entrance and are kept at a certain distance from the narrow road. The oncoming detection point B and the same-direction detection point B are arranged at the narrow road exit. At least one of the following sensors is provided at the oncoming detection point A, oncoming detection point B, same-direction detection point A, and same-direction detection point B: inductive loop, optoelectronic switch, infrared sensor, pressure sensor, intelligent camera.

[0058] Specifically, oncoming detection point A and same-direction detection point A are respectively arranged at a certain distance in front of the oncoming / same-direction entrance of the narrow road to detect the arrival status and driving direction of the vehicle about to enter the narrow road. The oncoming detection point B and the same-direction detection point B are arranged at the oncoming / same-direction exit of the narrow road to confirm whether the vehicle has completely left the narrow road and entered the open section. At least one sensing device such as an inductive loop, optoelectronic switch, infrared sensor, pressure sensor or intelligent camera is deployed at each detection point. Through the cooperative trigger logic of the entrance and exit detection points, the vehicle passing direction is judged. For example, oncoming vehicles need to trigger oncoming detection point A at the entrance and oncoming detection point B at the exit, and same-direction vehicles need to trigger same-direction detection point A at the entrance and same-direction detection point B at the exit, and the vehicle arrival time, speed and type information are collected in real time.

[0059] Furthermore, the interactive prompt module includes a display screen and / or a voice prompt device. The display screen is used to display the traffic control instruction, and the voice prompt device is used to play the traffic control instruction.

[0060] In some embodiments, the dynamic regulation module includes:

[0061] A comparison unit configured to compare the vehicle arrival times detected at the oncoming detection point A and the same-direction detection point A, and to compare the vehicle types detected at the oncoming detection point A and the same-direction detection point A;

[0062] A first traffic instruction generation unit configured to generate a first traffic control instruction based on the traffic jam situation detected by the intelligent camera at the narrow road entrance according to the comparison result of the comparison unit.

[0063] Specifically, the comparison unit obtains in real time the vehicle arrival time and vehicle type data detected at the oncoming detection point A and the same-direction detection point A. By comparing the arrival time differences of the vehicles on both sides, for example, if the oncoming vehicle arrives more than 5 seconds earlier than the same-direction vehicle, and the type priority, such as an ambulance taking precedence over an ordinary vehicle, combined with the traffic status at the narrow road entrance captured by the intelligent camera in real time, such as congestion length and vehicle spacing, a first traffic control instruction is generated; if the oncoming vehicle arrives early and has a high type priority, an instruction of "oncoming vehicle has priority to pass" is sent to the interactive prompt module, otherwise the same-direction vehicle is allowed to enter the narrow road. At the same time, the vehicle movement status is continuously monitored through the inductive loop or the intelligent camera to ensure that there is no oncoming conflict during the execution of the instruction; when a sudden congestion occurs at the entrance, the first traffic instruction generation unit dynamically adjusts the release strategy according to the comparison result, such as extending the oncoming traffic window or inserting a high-priority vehicle, and synchronously updates the prompt information through the display screen and voice broadcast to achieve flexible scheduling and safety control in the congestion scenario.

[0064] In some embodiments, based on the traffic jam situation detected by the intelligent camera at the narrow road entrance, a first traffic control instruction is generated according to the comparison result of the comparison unit, which specifically includes:

[0065] If the intelligent camera detects that the number of vehicles waiting to pass at the narrow road entrance is less than the threshold, the difference between the arrival timestamps of the oncoming vehicle and the same-direction vehicle is compared. If the difference between the arrival timestamps of the oncoming vehicle and the same-direction vehicle is greater than the preset threshold, the vehicle that arrives first is given priority to pass;

[0066] If the timestamp difference is less than or equal to the threshold, the passing order is reallocated according to the vehicle size and priority. Reallocating the passing order according to the vehicle size and priority specifically includes: calculating the comprehensive priority according to the weight formula, and the weight formula is:

[0067]

[0068] where α and ρ are preset weight coefficients, and L is the vehicle length.

[0069] Specifically, there are two detection points on each side of the two-way roads A and B. Road A has vehicles moving in the same direction, and road B has vehicles moving in opposite directions. The two detection points on each side of A and B are A1, A2, B1, and B2 respectively. A1 and B1 are on the outer side, and A2 and B2 are on the inner side. When a vehicle on side A passes from A1 to the control point on side B1, it indicates that the vehicle is moving from side A to side B. And when the intelligent camera detects that the number of vehicles waiting to pass at the narrow road entrance is less than the preset threshold, for example, 5 vehicles, when there is a vehicle on side A, the dynamic regulation module first compares the difference in the vehicle arrival time stamps recorded at the opposite detection point A and the same-direction detection point A. For example, if the arrival time of the oncoming vehicle is 13:00:00 and the arrival time of the same-direction vehicle is 13:00:03, the difference is 3 seconds. If the difference is greater than the preset threshold, such as 5 seconds, the vehicle that arrives first is directly given priority to pass. The display screen on side A shows the prompt "Vehicles on this side are passing, please pay attention to safety", and the electronic screen on side B shows the prompt "Please wait, there is 1 vehicle driving on the lane across". After detecting that the second vehicle passes from A1 to the control point on side B1, the vehicle count on the display screen on side B automatically increases by 1. When the vehicle moves from B2 to A2, the vehicle count on the display screen on side B automatically decreases by 1. In this way, it cycles between increasing by 1 and decreasing by 1 until it reaches 0, and then the display screen on side B shows the prompt "Vehicles on this side are passing, please pay attention to safety".

[0070] If the time stamp difference is less than or equal to the threshold, such as 3 seconds ≤ 5 seconds, then further according to vehicle attributes, such as large vehicles with a length ≥ 6 meters, medium-sized vehicles with a length of 4 - 6 meters, small vehicles with a length < 4 meters, and priority tags, such as the priority of an ambulance = 10, public transportation = 5, ordinary vehicles = 1, the comprehensive priority is calculated through the weight formula, and the vehicle with the higher comprehensive priority is selected to pass first. During this process, the system ensures that the driver clearly obtains the dynamically adjusted passing rules by updating the display screen content and voice prompts in real time.

[0071] Furthermore, the dynamic regulation module further includes a vehicle attribute determination unit. The vehicle attribute determination unit has a vehicle database, and based on the vehicle database and the vehicle type identified by the vehicle detection module, the corresponding priority and vehicle length are obtained.

[0072] Specifically, vehicle data is collected in real time by intelligent cameras, lidar, or multi-sensor fusion systems deployed at detection points. Based on pre-trained deep learning models such as YOLOv7 or ResNet-50, the intelligent camera identifies the vehicle type, which includes emergency vehicles, buses, ordinary vehicles, etc., and identifies the vehicle model. Combining with a license plate recognition system or in-vehicle RFID tags to obtain vehicle registration information, such as whether it is a special type of ambulance, fire truck, etc., and compares this data with a pre-set vehicle database in real time; the vehicle database pre-stores structured information such as the type, model, length, and priority of the vehicle. For example, if the identified vehicle is an ambulance of XX model, the length data stored for XX model in the vehicle database is X meters, and the priority of the ambulance is 10. By comparison, the corresponding priority and vehicle length can be obtained.

[0073] In some embodiments, when the number of consecutive passing vehicles in the same / opposite lane reaches a preset same / opposite lane queue threshold, the entry of vehicles on this side is suspended, and the passing permission of vehicles in the opposite direction is preferentially released. For example, when 5 vehicles pass through a narrow road in sequence in the same lane and there are multiple vehicles queuing in the opposite lane, the entry of vehicles in the same lane into the narrow road is suspended, and the passing permission of vehicles in the opposite direction is preferentially released.

[0074] Embodiment 2

[0075] See Figure 3 , in some embodiments, the dynamic regulation module further includes a second passing instruction generation unit. When the intelligent camera detects that the number of vehicles waiting to pass at the narrow road entrance is greater than the threshold, the second passing instruction generation unit generates a second passing control instruction based on the quantum annealing algorithm. The specific steps for generating the second passing control instruction based on the quantum annealing algorithm include:

[0076] Establish an optimization function that minimizes the total waiting time and speed adjustment cost:

[0077]

[0078] Establish a penalty term:

[0079]

[0080] Establish constraints:

[0081]

[0082] Synthesize the Hamiltonian H cost = H1 + H2, and solve for the optimal solution X of the Hamiltonian i,t ;

[0083] where N represents the total number of queuing vehicles, ω irepresents the priority weight of vehicle i, t represents the time of the timestamp, x i,t represents the timestamp of the i-th oncoming vehicle, x j,t represents the timestamp of the j-th vehicle in the same direction, V i is the current speed of the vehicle, V opt is the recommended speed for passing through the narrow road, λ is the adjustment coefficient of the speed adjustment cost, T max represents the upper limit of the optimized time range, γ represents the oncoming conflict penalty coefficient, A represents the set of oncoming vehicles, B represents the set of vehicles in the same direction, d i represents the length of the initial position of vehicle i from the narrow road entrance, d j represents the length of the initial position of vehicle j from the narrow road entrance, s safe represents the minimum safe distance between the front and rear vehicles;

[0084] Based on the optimal solution X i,t Output the second traffic control instruction.

[0085] Specifically, the vehicle detection module collects real-time data of queuing vehicles, including vehicle arrival time, speed, position, type and priority weight, and encodes these data into the input parameters of the optimization problem; the quantum optimization unit models the vehicle passing problem as a quadratic unconstrained binary optimization (QUBO) model, defines the binary variable x i,t represents the timestamp of the i-th vehicle, constructs the objective function H1 to minimize the total weighted waiting time and speed adjustment cost, where the weighted waiting time term is calculated according to the vehicle priority, and the speed adjustment cost term is constrained by the deviation between the current and recommended speeds of the vehicle; at the same time, establish the oncoming conflict penalty term H2, use the high penalty coefficient γ to prohibit oncoming vehicles from entering the narrow road in the same time window, and add a safety distance constraint to ensure that the distance between vehicles in the same direction is not less than s safe , synthesize the Hamiltonian H cost = H1 + H2, then solve the optimal solution X i,t , determine the best entry time window and target speed for each vehicle. For example, when there are 10 vehicles queuing oncoming, the quantum optimization unit may generate a passing sequence of "A1 → B3 → A2 → B1 →...", and send the instruction to the in-vehicle terminal and roadside display screen through the 5G communication unit, displaying a prompt message such as "Vehicle A1, please enter at 13:00:15, keep the vehicle speed at 18 km / h". This method significantly reduces the total waiting time through global optimization, while avoiding oncoming conflicts, and can still maintain the safety and efficiency of narrow road passing in peak congestion scenarios.

[0086] Embodiment 3

[0087] See Figure 4, the second aspect of the present invention discloses a narrow road passing reminder method, which is applied to the narrow road passing reminder system as described in any one of the foregoing. The method includes the following steps:

[0088] Obtain vehicle information, where the vehicle information includes vehicle arrival time, speed, quantity, license plate, and vehicle type;

[0089] If the intelligent camera detects that the number of vehicles waiting to pass at the narrow road entrance is less than the threshold, generate a first traffic control instruction according to the comparison result of the comparison unit;

[0090] When the intelligent camera detects that the number of vehicles waiting to pass at the narrow road entrance is greater than the threshold, generate a second traffic control instruction;

[0091] Display the first traffic control instruction / the second traffic control instruction at the oncoming entrance / the same - direction entrance of the narrow road.

[0092] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should be covered within the protection scope of the present invention. The protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A narrow road meeting vehicle prompt system, characterized in that, The system includes: A vehicle detection module configured to obtain vehicle information, where the vehicle information includes vehicle arrival time, speed, quantity, license plate, and vehicle type; A dynamic regulation module configured to generate a traffic control instruction based on the vehicle information, where the traffic control instruction is used to indicate the right of way for oncoming vehicles or vehicles in the same direction on a narrow road; An interactive prompt module configured to display the traffic control instruction at both ends of the narrow road based on the control instruction.

2. The narrow-road passing vehicle reminder system according to claim 1, characterized in that, The vehicle detection module includes an oncoming detection unit and a same-direction detection unit. The oncoming detection unit includes oncoming detection points A and B, and the same-direction detection unit includes same-direction detection points A and B. Both oncoming detection point A and same-direction detection point A are set in front of the narrow road entrance and maintain a certain distance from the narrow road. Oncoming detection point B and same-direction detection point B are set at the narrow road exit. At least one of the following sensors is provided at oncoming detection point A, oncoming detection point B, same-direction detection point A, and same-direction detection point B: inductive loop, optoelectronic switch, infrared sensor, pressure sensor, intelligent camera.

3. The narrow-road passing vehicle reminder system according to claim 2, wherein The interactive prompt module includes a display screen and / or a voice prompt device. The display screen is used to display the traffic control instruction, and the voice prompt device is used to play the traffic control instruction.

4. The narrow-road passing vehicle prompt system according to claim 3, characterized in that, The dynamic regulation module includes: A comparison unit configured to compare the vehicle arrival times detected at oncoming detection point A and same-direction detection point A, and to compare the vehicle types detected at oncoming detection point A and same-direction detection point A; A first traffic instruction generation unit configured to generate a first traffic control instruction based on the traffic jam situation detected by the intelligent camera at the narrow road entrance and according to the comparison result of the comparison unit.

5. The narrow-road passing vehicle prompt system according to claim 4, wherein Generating a first traffic control instruction based on the traffic jam situation detected by the intelligent camera at the narrow road entrance and according to the comparison result of the comparison unit specifically includes: If the intelligent camera detects that the number of vehicles waiting to pass at the narrow road entrance is less than the threshold, then compare the difference in arrival timestamps between oncoming vehicles and vehicles in the same direction. If the difference in arrival timestamps between oncoming vehicles and vehicles in the same direction is greater than the preset threshold, give priority to releasing the vehicle that arrives first; If the timestamp difference is less than or equal to the threshold, reallocate the traffic order according to vehicle size and priority.

6. The narrow-road passing vehicle reminder system according to claim 5, wherein Reallocating the traffic order according to vehicle size and priority specifically includes: calculating the comprehensive priority according to the weight formula, and the weight formula is: where α and ρ are preset weight coefficients, and L is the vehicle length.

7. The narrow-road passing vehicle prompt system according to claim 6, wherein The dynamic regulation module further includes a vehicle attribute determination unit, and the vehicle attribute determination unit has a vehicle database. Based on the vehicle database and the vehicle type identified by the vehicle detection module, the corresponding priority and vehicle length are obtained.

8. The narrow-road passing vehicle reminder system according to claim 7, characterized in that, When the number of continuously passing vehicles in the same-direction / oncoming lane reaches the preset same-direction / oncoming queue threshold, suspend the entry of vehicles on this side and give priority to releasing the right of way for oncoming vehicles.

9. A narrow-road passing vehicle reminder system according to any one of claims 4 or 7, characterized in that The dynamic regulation module further includes a second passage instruction generation unit. When the intelligent camera detects that the number of vehicles waiting to pass at the narrow road entrance is greater than a threshold value, the second passage instruction generation unit generates a second passage control instruction based on the quantum annealing algorithm. The specific steps of generating the second passage control instruction based on the quantum annealing algorithm include: Establish an optimization function that minimizes the total waiting time and the speed adjustment cost: Establish a penalty term: Establish constraint conditions: Synthetic Hamiltonian H cost = H1 + H2, and solve for the optimal solution X of the Hamiltonian i,t ; where N represents the total number of queuing vehicles, ω i represents the priority weight of vehicle i, t represents the time of the timestamp, x i,t represents the timestamp of the i-th vehicle in the oncoming direction, x j,t represents the timestamp of the j-th vehicle in the same direction, V i is the current speed of the vehicle, V opt is the recommended speed for passing the narrow road, λ is the adjustment coefficient of the speed adjustment cost, T max represents the upper limit of the optimized time range, γ represents the oncoming conflict penalty coefficient, A represents the set of oncoming vehicles, B represents the set of vehicles in the same direction, d i represents the length of the initial position of vehicle i from the narrow road entrance, d j represents the length of the initial position of vehicle j from the narrow road entrance, s safe represents the minimum safe distance between the front and rear vehicles; Based on the optimal solution X i,t Output the second traffic control instruction.

10. A narrow road meeting vehicle prompting method, characterized in that The method is applied to the narrow road meeting vehicle prompt system according to any one of claims 1-9, and the method includes the following steps: Obtain vehicle information, where the vehicle information includes the vehicle arrival time, speed, quantity, license plate, and vehicle type; If the intelligent camera detects that the number of vehicles waiting to pass at the narrow road entrance is less than the threshold value, generate a first passage control instruction according to the comparison result of the comparison unit; When the intelligent camera detects that the number of vehicles waiting to pass at the narrow road entrance is greater than the threshold value, generate a second passage control instruction; Display the first passage control instruction / second passage control instruction at the oncoming entrance / same-direction entrance of the narrow road.

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