Dynamic guiding system and method based on novel pavement spike matrix

Abstract

The invention discloses a dynamic guidance system and method based on a novel pavement spike matrix, and relates to the technical field of intelligent traffic technologies. The invention provides a dynamic guidance system based on a novel pavement spike matrix. The dynamic guidance system comprises a roadside unit module, a data processing module and a pavement spike module, the road side unit module comprises a radar unit, a video unit and a communication unit; the road surface spike module comprises a roadside spike module and an in-road spike matrix module, and the roadside spike module and the in-road spike matrix module each comprise a light module and a communication module. Therefore, by adopting the dynamic guidance system and method based on the novel road spike matrix, the dynamic guidance of vehicles in the diversion and convergence areas can be realized, the passing efficiency and the driving safety are improved, and the dynamic guidance system and method are suitable for various traffic conditions.

Description

Technical Field

[0001] The present invention relates to the field of intelligent transportation technology, and in particular to a dynamic guidance system and method based on a novel road spike matrix. Background Art

[0002] Traffic guidance facilities on traditional roads include roadside traffic signs, markings, sight guidance facilities, traffic lights and other facilities that guide traffic in an orderly manner. However, traditional guidance facilities with fixed content are difficult to dynamically guide vehicles for optimal road network traffic based on the overall traffic operation status of the road section.

[0003] In recent years, relying on key technologies such as artificial intelligence, big data, and the Internet of Things, intelligent traffic guidance facilities have developed rapidly. Existing research at home and abroad has mainly focused on the intelligent upgrade of roadside guidance facilities. Through a variety of roadside guidance facilities such as smart street lights, traffic electronic signs, and traffic signals, travelers are provided with comprehensive road conditions and anti-collision warning information in real time, thereby realizing traffic guidance functions and effectively reducing the accident rate. However, the visibility of roadside traffic guidance facilities is poor in adverse weather conditions (such as rain and fog), and in the case of heavy traffic, large vehicles have a shielding effect on the recognition of roadside guidance information by the driver of the inner passenger car.

[0004] Therefore, it is necessary to develop a dynamic guidance system and method based on a new type of road spike matrix to provide a reference for intelligent traffic guidance. Summary of the invention

[0005] The purpose of the present invention is to provide a dynamic guidance system and method based on a novel road spike matrix, which can realize dynamic guidance according to different traffic conditions, effectively guide driving vehicles to comply with traffic regulations, and improve road traffic efficiency and driving safety.

[0006] To achieve the above object, the present invention provides a dynamic guidance system based on a novel road spike matrix, comprising:

[0007] The roadside unit module collects and processes road section information and transmits it to the data processing module;

[0008] The data processing module determines the congestion level of the road section based on the road section information, formulates guidance strategies, and transmits instructions to the road spike module;

[0009] The road spike module guides the direction and speed of driving vehicles on the road section according to the transmitted instructions.

[0010] Preferably, the roadside unit module includes a radar unit, a video unit and a communication unit;

[0011] Among them, the radar unit detects the speed of the vehicle by transmitting and receiving electromagnetic waves;

[0012] The video unit captures continuous video images through a high-definition camera and extracts the characteristic information of the vehicle;

[0013] The communication unit is used to establish a communication connection between the radar unit, the video unit and the data processing module.

[0014] Preferably, the road spike module includes a roadside spike module and a road spike matrix module, and both the roadside spike module and the road spike matrix module include a lighting module and a communication module;

[0015] Among them, the lighting module turns on the lights, changes the colors, and changes the combinations according to the instructions transmitted by the data processing module; the communication module is used to communicate with the data processing module.

[0016] Preferably, the roadside road stud module adopts rectangular protruding road studs, including red and yellow colors, and the road studs are connected by wires; the road stud matrix module adopts circular buried road studs, including red and green colors, and the road studs are connected by wires.

[0017] A dynamic guidance method based on a novel road spike matrix comprises the following steps:

[0018] S1. Install a roadside unit module on the road, calculate the speed of vehicles passing through the road section through the radar unit and the video unit in the roadside unit module, extract the characteristic information of the vehicles, and transmit the obtained data to the data processing module through the communication unit;

[0019] S2, the data processing module calculates the instantaneous speed of the road section according to the received vehicle speed and characteristic information, and determines the congestion degree of the road section, and then transmits instructions to the road spike matrix module to control the color and sign style of the road spike matrix;

[0020] S3. The road stud matrix module in the road section at the junction and merging area is green in color and has a directional arrow style regardless of congestion. The roadside stud module and the road stud matrix module in the middle of the road section are dynamically guided according to the transmitted instructions.

[0021] Therefore, the present invention adopts the above-mentioned dynamic guidance system and method based on the new road spike matrix, which has the following technical effects:

[0022] (1) Safety guidance, which can ensure visibility and realize customized traffic information guidance, and play a role in supplementing and enhancing the guidance information of traditional facilities and roadside intelligent facilities;

[0023] (2) Direction guidance, which is used to guide vehicle trajectories in diverging and merging areas and mark lane contours to guide driving vehicles to maintain the correct driving trajectory;

[0024] (3) Speed ​​guidance: guiding drivers to slow down, especially when approaching intersections or congested roads.

[0025] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a flow chart of a dynamic guidance system and method based on a novel road spike matrix of the present invention;

[0027] Figure 2 It is a guide sign diagram of a road spike matrix in an embodiment of a dynamic guidance system and method based on a new road spike matrix of the present invention. Figure 2 (a) is straight ahead. Figure 2 (b) is a right turn. Figure 2 (c) means go straight and turn right. Figure 2 Middle (d) is for left or right turn;

[0028] Figure 3 It is a speed limit and no-travel sign diagram of a road spike matrix in an embodiment of a dynamic guidance system and method based on a new road spike matrix of the present invention. Figure 3 (a) is a sign for a speed limit of 10 km / h. Figure 3 (b) is a sign for a speed limit of 20 km / h. Figure 3 (c) in the middle is a speed limit sign of 30km / h. Figure 3 (d) is a no-entry sign. DETAILED DESCRIPTION

[0029] The present invention can be explained in more detail by the following examples. The purpose of disclosing the present invention is to protect all changes and improvements within the scope of the present invention. The present invention is not limited to the following examples.

[0030] See also Figure 1 The present invention provides a dynamic guidance system based on a novel road spike matrix, including a roadside unit module, which is used to collect and process road section information and transmit it to a data processing module; the data processing module determines the degree of road section congestion according to the road section information, formulates a guidance strategy, and transmits instructions to the road spike module; the road spike module guides the direction and speed of driving vehicles on the road section according to the transmitted instructions.

[0031] The roadside unit module includes a radar unit, a video unit and a communication unit. The radar unit is used to transmit and receive electromagnetic waves to detect the speed of the vehicle; the video unit is used to capture continuous video images through a high-definition camera and extract the vehicle's characteristic information, such as the license plate; the communication unit is used to realize the communication between the radar unit, the video unit and the data processing module.

[0032] The road stud module includes a roadside stud module and a road stud matrix module, and both the roadside stud module and the road stud matrix module include a lighting module and a communication module. The lighting module turns on the light, changes the color, and changes the combination according to the instructions transmitted by the data processing module; the communication module is used to communicate with the data processing module.

[0033] In this embodiment, the roadside stud module uses a 10 cm rectangular protruding stud with yellow and red colors, which can realize five working modes: yellow constant light, yellow flashing (fast / slow) and red flashing (fast / slow). Among them, the slow flashing frequency is 30 times / minute, the fast flashing frequency is 70 times / minute, and each stud is connected by wire.

[0034] The road spike matrix module uses 12cm diameter circular underground road spikes in green and red colors, with an arrangement of 12 (horizontally) × 9 (vertically). The horizontal spacing (center spacing of the spikes) should be 24cm, and the vertical spacing should be 72.5cm. The error should be less than ±5mm, and each spike is connected by wire.

[0035] Based on the above system, dynamic guidance effects can be achieved according to different traffic conditions, such as different colors, different flashing frequencies, and the display of different road signs. Among them, road signs include but are not limited to guide arrows, speed limit signs (numbers), warning signs (letters), etc., so as to effectively guide driving vehicles to comply with traffic rules and improve road traffic efficiency and driving safety.

[0036] The application method of the above-mentioned dynamic guidance system based on the new road spike matrix is ​​as follows:

[0037] S1. In a roadside unit module installed on the road, the radar unit and the video unit in the roadside unit module work to calculate the speed of vehicles passing through the road section, extract the characteristic information of the vehicles, and transmit the obtained data to the data processing module through the communication unit.

[0038] S2. In the data processing module, the instantaneous speed of the road section is calculated based on the received vehicle speed and characteristic information, and the congestion level of the road section is judged by the average travel speed of the section. Then, according to the congestion level, instructions are transmitted to the road spike matrix module to control the color and logo style of the road spike matrix, so as to provide guidance for the vehicle quickly.

[0039] According to the "Road Traffic Congestion Evaluation Method" (GA / T 115-2020), the corresponding relationship between the average travel speed and traffic congestion degree of urban main roads and secondary roads is shown in Table 1.

[0040] Table 1 The corresponding relationship between the average travel speed and traffic congestion degree of urban trunk roads and secondary trunk roads

[0041]

[0042] S3. The road stud matrix module in the road section at the junction and merging area is green in color and has a guide arrow style regardless of whether it is congested. The roadside stud module and the road stud matrix module in the middle of the road section dynamically guide the vehicle according to the transmitted instructions. The specific guidance scheme is shown in Table 2.

[0043] See also Figure 2 and Figure 3 When the road stud matrix is ​​green, a directional arrow sign is displayed; when the road stud matrix is ​​red, a speed limit sign or a no-entry sign is displayed.

[0044] Table 2 Guidance scheme of roadside stud module and roadside stud matrix module in the middle of the road section

[0045] Traffic congestion Roadside stud module Road stud matrix module in the middle of the road section Smooth Yellow, constant light Turn off the lights Mild congestion Yellow, flashing (30 times / min) Red, showing speed limit 30 sign Moderate congestion Red, flashing (30 times / min) Red, showing speed limit 20 sign Severe congestion Red, strobe (70 times / min) Red, showing speed limit 10 sign

[0046] Therefore, the present invention adopts the above-mentioned dynamic guidance system and method based on the new road spike matrix, which can guide vehicles to slow down or maintain the correct driving trajectory, supplement and enhance traditional facilities and roadside intelligent facilities, and realize fast and safe dynamic guidance of vehicles in the diverging and merging areas.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solution of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the present invention.

Claims

1. A dynamic guidance system based on a new road spike matrix, characterized in that: include: The roadside unit module collects and processes road section information and transmits it to the data processing module; The data processing module determines the congestion level of the road section based on the road section information, formulates guidance strategies, and transmits instructions to the road spike module; The road spike module guides the direction and speed of driving vehicles on the road section according to the transmitted instructions.

2. A dynamic guidance system based on a new road spike matrix according to claim 1, characterized in that: The roadside unit module includes a radar unit, a video unit and a communication unit; Among them, the radar unit detects the speed of the vehicle by transmitting and receiving electromagnetic waves; The video unit captures continuous video images through a high-definition camera and extracts the characteristic information of the vehicle; The communication unit is used to establish a communication connection between the radar unit, the video unit and the data processing module.

3. A dynamic guidance system based on a new road spike matrix according to claim 1, characterized in that: The road spike module includes a roadside spike module and a road spike matrix module, and both the roadside spike module and the road spike matrix module include a lighting module and a communication module; Among them, the lighting module turns on the lights, changes the colors, and changes the combinations according to the instructions transmitted by the data processing module; the communication module is used to communicate with the data processing module.

4. A dynamic guidance system based on a new road spike matrix according to claim 3, characterized in that: The roadside road stud module uses rectangular protruding road studs, including red and yellow colors, and the road studs are connected by wires; the road stud matrix module uses circular buried road studs, including red and green colors, and the road studs are connected by wires.

5. A dynamic guidance method based on a new road spike matrix, characterized in that: The following steps are involved: S1. Install a roadside unit module on the road, calculate the speed of vehicles passing through the road section through the radar unit and the video unit in the roadside unit module, extract the characteristic information of the vehicles, and transmit the obtained data to the data processing module through the communication unit; S2, the data processing module calculates the instantaneous speed of the road section according to the received vehicle speed and characteristic information, and determines the congestion degree of the road section, and then transmits instructions to the road spike matrix module to control the color and sign style of the road spike matrix; S3. The road stud matrix module in the road section at the junction and merging area is green in color and has a directional arrow style regardless of congestion. The roadside stud module and the road stud matrix module in the middle of the road section are dynamically guided according to the transmitted instructions.

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