An intelligent traffic management system for construction roads

Abstract

The invention provides an intelligent traffic management system for a construction road, which is applied to a narrow road surface, wherein a plurality of avoidance places are arranged on one side of the construction road, and comprises: a vehicle positioning system, a dispatching algorithm, a control system, a traffic signal lamp, and a data transmission system; the vehicle positioning system comprises: an on-board locator installed on the vehicle, and a positioning base station installed in a temporary construction road, wherein the on-board locator can input static information of the vehicle, and the positioning base station can receive a signal transmitted from the on-board locator and identify dynamic information of the vehicle in the temporary construction road; the traffic signal lamps are arranged at both ends of the avoidance place of the construction road, and the invention belongs to the field of intelligent traffic management technology, effectively solves the traffic diversion problem of a single-lane temporary construction road, avoids traffic congestion and even traffic accidents caused by visual errors of drivers, ensures the driving safety of vehicles, and improves the traffic efficiency of vehicles.

Description

Technical Field

[0001] The present invention relates to an intelligent traffic management system for construction roads and does not limit the present invention. Background Art

[0002] During the construction process, it is usually necessary to open temporary construction roads that are not part of the main project to ensure the smooth progress of the construction. Temporary construction roads under special geographical conditions such as high mountains and steep slopes, or temporary traffic tunnels over long distances, are difficult to construct and costly. According to general rules, the narrower the traffic road surface, the lower the construction cost. Therefore, under the condition of meeting the vehicle traffic, the construction cost of a single-lane temporary construction road with a reasonable arrangement of avoidance is the lowest. At the same time, during the construction process, the number of vehicles passing through the road is relatively fixed but there are many types, and the number of vehicles and the direction of driving are extremely random. Relying solely on manual scheduling will lead to low vehicle traffic efficiency and seriously affect construction efficiency. In order to effectively solve the pain points of construction cost, traffic efficiency, and traffic safety, the present invention discloses a temporary construction road intelligent traffic management system. The system can ensure the smoothness and safety of traffic on a single-lane temporary construction road with a reasonable arrangement of avoidances, which not only improves the vehicle traffic efficiency, but also more effectively reduces the construction cost. Summary of the invention

[0003] In order to solve the problem that manual scheduling on temporary construction roads leads to low vehicle traffic efficiency and seriously affects construction efficiency, the present invention provides an intelligent traffic management system for construction roads.

[0004] In order to achieve the above-mentioned object, the present invention adopts the following technical scheme: an intelligent traffic management system for a construction road, the system is applied to a narrow road surface, and a plurality of avoidance places are arranged on one side of the construction road, including: a vehicle positioning system, a scheduling algorithm, a control system, a traffic signal light, and a data transmission system;

[0005] The vehicle positioning system includes: a vehicle-mounted locator installed on the vehicle and a positioning base station installed in the temporary construction road. The vehicle-mounted locator can record the static information of the vehicle, and the positioning base station can receive the signal transmitted by the vehicle-mounted locator and identify the dynamic information of the vehicle in the temporary construction road;

[0006] The traffic lights are arranged at both ends of the avoidance area of ​​the construction road, and the traffic lights control the display of the traffic lights after receiving the signal from the control system;

[0007] The control system receives control condition information from the vehicle positioning system and controls the traffic lights according to the scheduling algorithm;

[0008] The scheduling algorithm includes:

[0009] Enter driving information;

[0010] Calculate the meeting interval;

[0011] If the traffic light is outside the meeting zone, the output result is: the color of the traffic light is green;

[0012] If the traffic light is located within the passing zone, the number of vehicles on the road must be determined;

[0013] According to the capacity of the avoidance area and the number of passing vehicles, it is divided into the following three situations:

[0014] Case 1: The number of vehicles coming from both directions is less than or equal to the capacity of the avoidance area. The vehicle that arrives at the avoidance area first will be shown a green light, while the vehicle that arrives at the avoidance area later will be shown a red light.

[0015] Case 2: The number of vehicles coming from one direction is greater than the capacity of the avoidance area, while the number of vehicles coming from the other direction is less than or equal to the capacity of the avoidance area. The traffic light in the direction where the number of vehicles is greater than the capacity of the avoidance area is green, and the traffic light in the other direction is red.

[0016] In case 3, the number of vehicles coming from both directions is greater than the capacity of the avoidance area. The vehicle that arrives at the avoidance area first will have a green light, while the vehicle that arrives at the avoidance area later will have a red light.

[0017] The data transmission system is composed of optical fiber, switches, network cables and optical terminals.

[0018] As a further description of the above technical solution:

[0019] The static information of the vehicle includes the vehicle model, license plate number, vehicle height, and vehicle length; the dynamic information of the vehicle includes the vehicle position, quantity, category, driving speed, and driving direction; and the vehicle-mounted locator has a one-button alarm function.

[0020] As a further description of the above technical solution:

[0021] There are multiple positioning base stations, which are evenly distributed. The positioning accuracy of the positioning base stations for the vehicle-mounted locator is less than 3m.

[0022] As a further description of the above technical solution:

[0023] The data transmission system uses wired and / or wireless methods to perform real-time communication between systems.

[0024] As a further description of the above technical solution:

[0025] The traffic signal light comprises a red light, a green light and a lamp control module. The lamp control module receives a control instruction from a control system and controls the red light or the green light to light up.

[0026] As a further description of the above technical solution:

[0027] The lamp control module has a fault self-detection subsystem, which detects whether the red light or the green light is on according to the control information, and feeds back the detected information to the control system.

[0028] As a further description of the above technical solution:

[0029] The control system has a manual control mode and an automatic control mode.

[0030] As a further description of the above technical solution:

[0031] The control condition information includes dynamic information and static information.

[0032] The beneficial effects of the present invention are as follows: the problem of traffic diversion on a single-lane temporary construction road is effectively solved, traffic congestion and even traffic accidents caused by visual errors of drivers are avoided, the driving safety of vehicles is ensured, and the traffic efficiency of vehicles is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate an intelligent traffic management system for construction roads, the following drawings are shown;

[0034] Figure 1 is a system layout diagram of the present invention;

[0035] Figure 2 is an operational flow chart of the present invention;

[0036] Figure 3 This is a flow chart of the scheduling algorithm of the present invention.

[0037] The reference numerals in the accompanying drawings:

[0038] 1-avoidance point; 2-positioning base station; 3-vehicle locator; 4-host computer; 5-optical terminal; 6-switch; 7-traffic signal light; 8-construction road; 9-passing section; 10-optical fiber; 11-network cable; S1-1: vehicle positioning system; S1-2: control system; S1-2-1: manual control mode; S1-2-2: automatic control mode; S1-3: traffic signal light; S2-1: input driving information; S2-2: calculate passing section; S2 -3: Determine the position of the traffic light; S2-4: Determine the number of vehicles; Q2-1: Case 1, the number of vehicles coming from both directions is less than or equal to the capacity of the avoidance area; Q2-2: Case 2, the number of vehicles coming from one direction is greater than the capacity of the avoidance area, and the number of vehicles coming from the other direction is less than or equal to the capacity of the avoidance area; Q2-3: Case 3, the number of vehicles coming from both directions is greater than the capacity of the avoidance area; R2-1: Output result 1; R2-2: Output result 2; R2-3: Output result 3; R2-4: Output result 4. DETAILED DESCRIPTION

[0039] Please refer to the attached Figure 1-3 The present invention provides an intelligent traffic management system in a temporary construction road, including: a vehicle positioning system S1-1, a scheduling algorithm, a control system S1-2, a traffic signal light S1-3, and a data transmission system.

[0040] Vehicle positioning system S1-1: It consists of a locator 3 installed on the vehicle and a positioning base station 2 installed in the temporary construction road. Among them, the vehicle-mounted locator 3 can record the static information of the vehicle, such as the vehicle model, license plate number, height and length, etc. At the same time, the vehicle-mounted locator 3 has a one-key alarm function. When the vehicle encounters a driving failure, the distress signal can be transmitted to the control system S1-2 through the one-key alarm function to obtain timely rescue; the positioning base station can receive the signal transmitted from the vehicle-mounted locator 3 and identify the dynamic information of the vehicle in the temporary construction road 8, such as the location, number, category, driving speed and driving direction of the vehicle. In order to accurately identify the dynamic information of the vehicle, the positioning base station 2 needs to be evenly arranged along the road, and the positioning accuracy is less than 3m. At the same time, it is recommended that the installation height is 3 to 8m and the installation position is kept about 30cm away from the wall.

[0041] Scheduling algorithm: The scheduling algorithm follows the principle of first come first served and efficiency first. Vehicles closer to the avoidance point 1 in the driving direction have higher right of way. Vehicles in the opposite direction need to enter the designated avoidance point 1 and wait until all vehicles with the right of way have passed before they can continue to pass.

[0042] The scheduling algorithm includes 4 steps and can output 4 results for different situations.

[0043] like Figure 3As shown, the process of the scheduling algorithm is: first input the driving information step S2-1, the driving information includes the location, number, type, speed, and driving direction of the vehicle. Then calculate the vehicle's meeting interval step S2-2. The meeting interval 9 is a virtual mark that will continuously adjust its position as the driving information changes, but it should include two avoidance areas such as A2 and A3. Then determine the positional relationship between the traffic light 7 and the meeting interval step S2-3. If the traffic light 7 is outside the meeting interval 9, the result 1R2-1 is output. Vehicles outside the meeting interval have the right of way, and the color of the traffic light 7 is green; if the traffic light 7 is within the meeting interval 9, it is necessary to determine the number of vehicles step S2-4. According to the capacity of the avoidance area 1 and the number of passing vehicles, there are three situations after executing step S2-4. Case 1Q2-1: The number of vehicles coming from both directions is less than or equal to the capacity of the avoidance area; Case 2Q2-2: The number of vehicles coming from one direction is greater than the capacity of the avoidance area and the number of vehicles coming from the other direction is less than or equal to the capacity; Case 3Q2-3: The number of vehicles coming from both directions is greater than the capacity of the avoidance area. If it is case 1Q2-1, the output result is 2R2-2. The vehicle that arrives at the avoidance area 1 first passes first, and the vehicle that arrives at the avoidance area 1 later enters the avoidance area to avoid the vehicle. Example: Figure 1 In the example, two convoys are traveling in opposite directions and the passing interval is 9. If the left vehicle arrives at the avoidance point A2 first, the left vehicle has the right of way and the traffic lights B3 and B5 in that direction are green. The right vehicle does not have the right of way and needs to enter the avoidance point A3 to avoid, and the traffic lights B4 and B6 are red. If it is situation 2Q2-2, the output result is 3R2-3. The vehicle in the direction with a number of vehicles greater than the capacity of the avoidance point passes first, and the vehicle in the direction with a number of vehicles less than or equal to the capacity of the avoidance point enters the avoidance point to avoid. Example: Figure 1 In the example, two convoys are driving in opposite directions and the passing interval is 9. If the number of vehicles on the left is greater than the capacity of the avoidance point 1, the vehicles on the left have the right of way and the traffic lights B3 and B5 in that direction are green. The vehicles on the right do not have the right of way and need to enter the avoidance point A3 to avoid, and the traffic lights B4 and B6 are red. If it is situation 3Q2-3, the output result is 4R2-4. The vehicles that arrive at the avoidance point first pass through, and the vehicles that arrive at the avoidance point later enter the avoidance point in a dispersed manner to avoid. Example: Figure 1 The two convoys are running in opposite directions and the passing interval is 9. In addition, the number of vehicles in the two convoys is greater than the capacity of the avoidance point 1. Assume that the number of vehicles in the convoys in both directions is 4, and the capacity of the avoidance point 1 is 3. If the left vehicle arrives at the avoidance point A2 first, the left vehicle has the right of way and the traffic lights B3 and B5 in this direction are green. The right vehicle does not have the right of way and needs to disperse into the avoidance points A3 and A4 to avoid, and the traffic lights B4, B6, and B7 are red.

[0044] Control system S1-2: It consists of a host computer 4, a control program and a display screen. The control system S1-2 receives signals from the vehicle positioning system and the traffic lights 7, and displays the position, quantity, type, driving speed, driving direction, status of each traffic light and lamp failure of the vehicle in real time on the display screen. It can also record the driving trajectory of the vehicle and has functions such as query, output and alarm prompts; the control program determines the right of way of the moving vehicle based on the received vehicle information and the scheduling algorithm, determines the color of the traffic lights 7 and transmits instructions, and schedules the vehicle to travel according to the color of the traffic lights; the control system S1-2 also has a manual control mode S1-2-1, and human intervention can be performed as needed.

[0045] Traffic lights 7: arranged at the entrance and exit of the temporary construction road 8 and at both ends of the avoidance 1, and composed of a red light, a green light and a lamp control module. After receiving the signal from the control system S1-2, the lamp control module controls the display of the traffic lights, and can also realize the self-check of lamp faults and feedback to the control system S1-2. The red light is on, indicating that vehicles in this direction need to enter the avoidance 1 and wait, and the green light is on, indicating that vehicles in this direction can pass normally.

[0046] Data transmission system: It is composed of optical fiber 10, switch 6, network cable 11 and optical terminal 5. Local real-time communication between systems can also be carried out in wired or wireless manner.

[0047] like Figure 2 , 3 As shown, the operation process of the present invention is:

[0048] The vehicle positioning system S1-1 obtains the static and dynamic information of the vehicle through the vehicle-mounted locator 3 and the positioning base station 2, and transmits it to the control system S1-2 through the data transmission system. The control system S1-2 receives the signal from the vehicle positioning system S1-1 and determines the right of way of the passing vehicle through the control program, and then transmits the result to the lamp control module of the traffic light 7 through the data transmission system, thereby controlling the display of the traffic light. When encountering an emergency, such as when the vehicle needs to pass in one direction or two-way traffic is prohibited, the manual control mode S1-2-1 in the control system is started to send the command to all traffic lights 7 through the data transmission system. The traffic light 7 displays the red and green lights according to the received command. When the lamp fails, the fault information is transmitted to the control system S1-2 through the data transmission system. The lamp failure includes: the lamp cannot work, and the lamp display color is different from the command color. The control system communicates with the vehicle positioning system S1-1 and the traffic light 7 in real time through the data transmission system. After receiving the signal, the host computer 4 displays the relevant information of the vehicle, the display status of the traffic light 7, the lamp failure status and the one-key alarm information on the display screen.

[0049] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and practicing the disclosure of the invention herein. This application is intended to cover any variations, uses or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art that are not disclosed by the present invention. The specification and examples are to be considered exemplary only, and the true scope and spirit of the present invention are indicated by the following claims.

[0050] It should be understood that relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. The present invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. An intelligent traffic management system for a construction road, the system is applied to a narrow road surface, a plurality of avoidance areas (1) are arranged on one side of the construction road (8), and the system is characterized in that: include: Vehicle positioning system (S1-1), dispatching algorithm, control system (S1-2), traffic lights (S1-3), data transmission system; The vehicle positioning system (S1-1) comprises: an on-board positioning device (3) installed on the vehicle and a positioning base station (2) installed in a temporary construction road, wherein the on-board positioning device (3) can record static information of the vehicle, and the positioning base station (2) can receive a signal transmitted from the on-board positioning device (3) and identify dynamic information of the vehicle in the temporary construction road; The traffic lights (S1-3) are arranged at both ends of the avoidance point (1) of the construction road, and the traffic lights (S1-3) control the display of the traffic lights (S1-3) after receiving the signal from the control system (S1-2); The control system (S1-2) receives control condition information from the vehicle positioning system (S1-1) and controls the traffic light (S1-3) according to the scheduling algorithm; The scheduling algorithm includes: Input driving information (S2-1); Calculate the meeting section (S2-2); If the traffic light (S1-3) is outside the meeting zone (9), the output result is: the color of the traffic light (S1-3) is all green; If the traffic light (S1-3) is within the meeting zone (9), the number of vehicles on the road needs to be determined; According to the capacity of the avoidance point (1) and the number of vehicles passing through, it is implemented in the following three situations: Case 1: The number of vehicles coming from both directions is less than or equal to the capacity of the avoidance area. The vehicle that arrives at the avoidance area (1) first will have a green light, while the vehicle that arrives at the avoidance area (1) later will have a red light. Case 2: The number of vehicles coming from one direction is greater than the capacity of the avoidance area, while the number of vehicles coming from the other direction is less than or equal to the capacity of the avoidance area. The traffic light in the direction where the number of vehicles is greater than the capacity of the avoidance area is green, and the traffic light in the other direction is red. Case 3: The number of vehicles coming from both directions is greater than the capacity of the avoidance area. The vehicle that arrives at the avoidance area (1) first will have a green light, while the vehicle that arrives at the avoidance area (1) later will have a red light. The data transmission system is composed of optical fiber, switches, network cables and optical terminals.

2. The intelligent traffic management system for construction roads according to claim 1 is characterized by: The static information of the vehicle includes the vehicle model, license plate number, vehicle height and vehicle length; the dynamic information of the vehicle includes the vehicle position, quantity, type, driving speed and driving direction; and the vehicle-mounted locator (3) has a one-button alarm function.

3. The intelligent traffic management system for construction roads according to claim 1 is characterized by: The number of the positioning base stations (2) is multiple and they are evenly distributed. The positioning accuracy of the positioning base stations (2) for the vehicle-mounted locator (3) is less than 3m.

4. The intelligent traffic management system for construction roads according to claim 1 is characterized by: The data transmission system uses wired and / or wireless methods to perform real-time communication between systems.

5. The intelligent traffic management system for construction roads according to claim 1 is characterized by: The traffic signal light comprises a red light, a green light and a lamp control module. The lamp control module receives a control instruction from a control system and controls the red light or the green light to light up.

6. The intelligent traffic management system for construction roads according to claim 5, characterized in that: The lamp control module has a fault self-detection subsystem, which detects whether the red light or the green light is on according to the control information, and feeds back the detected information to the control system.

7. The intelligent traffic management system for construction roads according to claim 6, characterized in that: The control system (S1-2) has a manual control mode (S1-2-1) and an automatic control mode (S1-2-2).

8. The intelligent traffic management system for construction roads according to claim 1 is characterized by: The control condition information includes dynamic information and static information.

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