Single-lane tunnel two-way passage intelligent control system and control method thereof

Abstract

The invention belongs to the field of narrow tunnel traffic under high flow, and particularly relates to a single-lane tunnel two-way traffic intelligent control system and a control method thereof. In the system, a first controller and a first traffic light for indicating traffic are arranged at a first port of a tunnel, a first barrier gate is arranged at an entrance position, and a second barrier gate is arranged at an exit position; the first controller is used for controlling the opening and closing of the first barrier gate and the second barrier gate and controlling the respective display of a green light and a red light in the first traffic light for indicating traffic; a second controller and a second traffic light for indicating traffic are arranged at a second port of the tunnel, a fourth barrier gate is arranged at an entrance position, and a third barrier gate is arranged at an exit position; and the second controller is used for controlling the opening and closing of the third barrier gate and the fourth barrier gate and controlling the respective display of a green light and a red light in the second traffic light for indicating traffic. According to the invention, the problem of two-way traffic difficulty caused by narrow tunnel is effectively solved, and the traffic efficiency and safety level of the tunnel are greatly improved.

Description

Technical Field

[0001] The present invention belongs to the field of narrow tunnel traffic under high traffic conditions, and in particular relates to an intelligent control system for two-way traffic in a single-lane tunnel and a control method thereof. Background Art

[0002] As an important passage connecting towns and construction sites, the Shuihutu Tunnel carries a large number of vehicles every day, including many construction vehicles, management vehicles, private cars, government vehicles, and agricultural vehicles. Due to the relatively closed space and limited vision of the tunnel, the passing of construction vehicles in the tunnel can easily cause traffic accidents, seriously threatening road safety and the lives of drivers and passengers.

[0003] The current solution is to arrange management personnel at both ends of the tunnel to manage traffic. Only when vehicles in one direction have completely passed through the tunnel can vehicles in the other direction be released.

[0004] However, the current solutions do not fundamentally solve the problems of difficulty in two-way traffic and congestion in two-way traffic caused by narrow tunnels. Summary of the invention

[0005] The purpose of the present invention is to provide an intelligent control system for two-way traffic in a single-lane tunnel and a control method thereof, which can realize automatic control of traffic lights for one-way traffic in the tunnel, effectively solve the difficulty of two-way traffic caused by the narrow tunnel, greatly improve the traffic efficiency and safety level of the tunnel, and effectively alleviate the congestion problem of two-way traffic.

[0006] The technical solution to achieve the purpose of the present invention is:

[0007] The present invention provides an intelligent control system for two-way traffic in a single-lane tunnel, the control system comprising a first barrier gate control unit and a second barrier gate control unit, the first barrier gate control unit is arranged at a first port of the tunnel, and the second barrier gate control unit is arranged at a second port of the tunnel; the first barrier gate control unit comprises a first controller and a first traffic light indicating traffic, the first controller and the first traffic light indicating traffic are arranged at the first port of the tunnel, the first barrier gate is arranged at the entrance position, and the second barrier gate is arranged at the exit position; the first controller is connected with the first barrier gate and the second barrier gate to control the opening and closing of the first barrier gate and the second barrier gate; the first controller is connected with the first traffic light indicating traffic to control the respective display of the green light and the red light; the second barrier gate control unit comprises a second controller and a second traffic light indicating traffic, the second controller and the second traffic light indicating traffic are arranged at the second port of the tunnel, a fourth barrier gate is arranged at the entrance position, and a third barrier gate is arranged at the exit position; the second controller is connected with the third barrier gate and the fourth barrier gate to control the opening and closing of the third barrier gate and the fourth barrier gate; the second controller is connected with the second traffic light indicating traffic to control the respective display of the green light and the red light.

[0008] Furthermore, the first barrier gate control unit also includes a first ground sensing coil and a first ground sensing coil controller. The first ground sensing coil is arranged at the front end of the first barrier gate, the first ground sensing coil is connected to the first ground sensing coil controller to detect vehicle signals, and the output of the first ground sensing coil controller is connected to the first controller; the output of the first controller is connected to the opening control input ports of the first barrier gate and the second barrier gate, and can control the opening and closing of the first barrier gate and the second barrier gate; the second barrier gate control unit also includes a fourth ground sensing coil and a fourth ground sensing coil controller. The fourth ground sensing coil is arranged at the front end of the fourth barrier gate, the fourth ground sensing coil is connected to the fourth ground sensing coil controller to detect vehicle signals, and the output of the fourth ground sensing coil controller is connected to the second controller; the output of the second controller is connected to the opening control input ports of the third barrier gate and the fourth barrier gate, and can control the opening and closing of the third barrier gate and the fourth barrier gate.

[0009] Furthermore, the first controller is connected to the second controller via a 485 bus; the first controller is set as a master controller, responsible for setting the traffic light time, and sending the traffic light status to the second controller via the 485 bus; the second controller is a slave controller, receiving the traffic light status sent by the first controller, and sending the vehicle waiting situation at the second port of the tunnel to the first controller.

[0010] Furthermore, the first gate is provided with a first license plate recognition system, and the control output of the first license plate recognition system is connected to the input port of the first controller; the fourth gate is provided with a second license plate recognition system, and the control output of the second license plate recognition system is connected to the input port of the second controller.

[0011] Furthermore, the first barrier gate control unit also includes a second ground sensing coil and a second ground sensing coil controller. The second ground sensing coil is arranged at the exit position of the first end face, and the second ground sensing coil is connected to the second ground sensing coil controller to detect vehicle signals. The output of the second ground sensing coil controller is connected to the first controller to count the vehicles exiting the first end face; the second barrier gate control unit also includes a third ground sensing coil and a third ground sensing coil controller. The third ground sensing coil is arranged at the exit position of the second end face, and the third ground sensing coil is connected to the third ground sensing coil controller to detect vehicle signals. The output of the third ground sensing coil controller is connected to the second controller to count the vehicles exiting the second end face.

[0012] Furthermore, the control system also includes a liquid crystal screen with a touch function, which is connected to the first controller and is used to display the traffic conditions of the tunnel and set the interval time of the traffic lights.

[0013] The present invention also provides a method for intelligent control of two-way traffic in a single-lane tunnel. The method comprises:

[0014] Step 1: Control the first gate:

[0015] The first gate is opened when the following conditions are met simultaneously: (a) the first traffic light is currently green; (b) the first ground sensor coil detects that there is a waiting vehicle;

[0016] Step 2: Control the fourth gate:

[0017] The fourth gate is opened only when the following conditions are met: (a) the second traffic light is currently green; (b) the second ground sensor coil detects that there is a waiting vehicle;

[0018] Step 3: Dynamically adjust traffic light time:

[0019] The traffic light time is dynamically adjusted based on a fixed time: (a) When there is no vehicle in the green light direction but there is a waiting vehicle in the red light direction, the traffic light can be switched; (b) When the green light direction of the first port is during peak hours, the green light time can be increased while the green light time of the second port is shortened; When the green light direction of the second port is during peak hours, the green light time can be increased while the green light time of the first port is shortened.

[0020] The present invention also provides a method for intelligent control of two-way traffic in a single-lane tunnel. The method comprises:

[0021] Step 1: Control the first gate:

[0022] The first gate can be opened only when the following conditions are met: (a) the first traffic light is currently green; (b) the first license plate recognition system outputs a gate opening signal, and the first controller detects the signal and controls the first gate to open, or the management personnel checks the vehicle and confirms that the vehicle can pass, and then remotely opens the first gate;

[0023] Step 2: Control the fourth gate:

[0024] The fourth gate is opened when the following conditions are met simultaneously: (a) the second traffic light is currently green and in the pass state; (b) the second license plate recognition system outputs a gate opening signal, and the second controller controls the fourth gate to open after detecting the signal, or the management personnel checks the vehicle and confirms that the vehicle can pass, and remotely opens the fourth gate;

[0025] Step 3: Dynamically adjust traffic light time:

[0026] The traffic light time is dynamically adjusted based on a fixed time: (a) When there is no vehicle in the green light direction but there is a waiting vehicle in the red light direction, the traffic light can be switched; (b) When the green light direction of the first port is during peak hours, the green light time can be increased while the green light time of the second port is shortened; When the green light direction of the second port is during peak hours, the green light time can be increased while the green light time of the first port is shortened.

[0027] Furthermore, in the control method, controlling the vehicle travel time includes:

[0028] Step 1: Use a fixed travel time rotation method to control the traffic of vehicles in two directions;

[0029] Step 2: At the entrance of the first end face, when the first traffic light is green, a timer is set for each vehicle entering; when the green time of the first traffic light ends, the first controller outputs a control to close the first gate, and the first traffic light switches to red. The second controller is notified to output a control to open the fourth gate, and the second traffic light switches to green, until the timing of the last vehicle reaches the time threshold T.

[0030] Step 3, at the entrance of the second end face, when the second traffic light is green, a timer is started for each vehicle that enters; when the green time of the second traffic light ends, the second controller outputs a control to close the fourth gate, and the second traffic light switches to red. The second controller waits until the timing of the last vehicle reaches the time threshold T before notifying the first controller output to control the first gate to open and the first traffic light switches to green.

[0031] Furthermore, in the control method, controlling the vehicle travel time includes:

[0032] Step 1: Use a fixed travel time rotation method to control the traffic of vehicles in two directions;

[0033] Step 2: At the entrance of the first end face, when the first traffic light is green, the count is added for each vehicle entering, and at the exit of the second end face, the count is subtracted for each vehicle leaving; when the green time of the first traffic light ends, the first controller outputs a control to close the first gate, and the first traffic light switches to red, and waits until the count value of the vehicle is zero before notifying the second controller to output a control to open the fourth gate, and the second traffic light switches to green;

[0034] Step 3, at the entrance of the second end face, when the second traffic light is green, the count is added for each vehicle entering, and at the exit of the first end face, the count is subtracted for each vehicle leaving; when the green light time of the second traffic light ends, the second control output controls the fourth gate to close, the second traffic light switches to red, and waits until the count value of the vehicle is zero before notifying the first controller output to control the first gate to open and the first traffic light switches to green.

[0035] The beneficial technical effects of the present invention are:

[0036] 1. The present invention provides a single-lane tunnel two-way traffic intelligent control system and control method, which can realize automatic control of one-way traffic lights in the tunnel, effectively solve the two-way traffic difficulties caused by the narrow tunnel, greatly improve the traffic efficiency and safety level of the tunnel, and effectively alleviate the congestion problem of two-way traffic.

[0037] 2. The present invention provides a two-way traffic intelligent control system for a single lane tunnel, which adopts computer control technology to switch traffic in two directions by means of traffic lights.

[0038] 3. The present invention provides a two-way traffic intelligent control system for a single-lane tunnel, which realizes intelligent control of the two-way traffic time by intelligently detecting waiting vehicles.

[0039] 4. The present invention provides a single-lane tunnel two-way traffic intelligent control system, which realizes the automatic release of registered vehicles and the restricted passage of unauthorized vehicles by integrating the license plate recognition barrier.

[0040] 5. The single-lane tunnel two-way traffic intelligent control system and control method provided by the present invention are highly practical, safe and reliable, and have high economic benefits.

[0041] 6. The present invention provides a single-lane tunnel two-way traffic intelligent control system and control method. At present, the Jinqimen Nuclear Power Plant has only the Shuihutu Tunnel as the only entrance and exit channel to the nuclear power plant site. This greatly improves the on-site operation efficiency and makes a significant contribution to ensuring that the nuclear power plant construction is completed on schedule. At the same time, it effectively improves the information level of the smart site of the Jinqimen Nuclear Power Plant, effectively improves the operation efficiency of the site, and brings huge indirect economic benefits.

[0042] 7. The intelligent control system for two-way traffic in a single-lane tunnel provided by the present invention, as an effective control system for two-way traffic in a single-lane tunnel, has broad application prospects and can effectively improve road traffic efficiency during similar tunnel or road construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1This is a schematic diagram of a two-way traffic intelligent control system for a single lane tunnel provided by the present invention. DETAILED DESCRIPTION

[0044] The present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0045] like Figure 1 As shown, the present invention provides a single-lane tunnel two-way traffic intelligent control system, in which a first gate control unit and a second gate control unit are arranged at both ends of the tunnel, wherein the first gate control unit is arranged at the first port of the tunnel, and the second gate control unit is arranged at the second port of the tunnel.

[0046] The first barrier control unit includes a first controller and a first traffic light indicating traffic. The first controller and the first traffic light indicating traffic are arranged at the first port of the tunnel, the first barrier is arranged at the entrance position, and the second barrier is arranged at the exit position; the first controller is connected with the first barrier and the second barrier to control the opening and closing of the first barrier and the second barrier; the first controller is connected with the first traffic light indicating traffic to control the display of green light and red light respectively.

[0047] The second barrier control unit includes a second controller and a second traffic light indicating traffic. The second controller and the second traffic light indicating traffic are arranged at the second port of the tunnel, a fourth barrier is arranged at the entrance, and a third barrier is arranged at the exit; the second controller is connected with the third barrier and the fourth barrier to control the opening and closing of the third barrier and the fourth barrier; the second controller is connected with the second traffic light indicating traffic to control the display of green light and red light respectively.

[0048] In a specific embodiment, the first barrier control unit also includes a first ground sensing coil and a first ground sensing coil controller. The first ground sensing coil is arranged at the front end of the first barrier. The first ground sensing coil is connected to the first ground sensing coil controller to detect vehicle signals. The output of the first ground sensing coil controller is connected to the first controller; the output of the first controller is connected to the opening control input port of the first barrier and the second barrier, and can control the opening and closing of the first barrier and the second barrier.

[0049] In another specific embodiment, the second barrier control unit also includes a fourth ground sensor coil and a fourth ground sensor coil controller. The fourth ground sensor coil is arranged at the front end of the fourth barrier. The fourth ground sensor coil is connected to the fourth ground sensor coil controller to detect vehicle signals. The output of the fourth ground sensor coil controller is connected to the second controller; the output of the second controller is connected to the opening control input port of the third barrier and the fourth barrier, and can control the opening and closing of the third barrier and the fourth barrier.

[0050] In another specific embodiment, the first controller and the second controller are connected via a 485 bus; the first controller is set as a master controller, responsible for setting the traffic light time, and sending the traffic light status to the second controller via the 485 bus; the second controller is a slave controller, receiving the traffic light status sent by the first controller, and sending the vehicle waiting situation at the second port of the tunnel to the first controller.

[0051] In another specific embodiment, the first gate may be provided with a first license plate recognition system, and the control output of the first license plate recognition system is connected to the input port of the first controller; the fourth gate may be provided with a second license plate recognition system, and the control output of the second license plate recognition system is connected to the input port of the second controller.

[0052] In another specific embodiment, a second ground sensing coil is arranged at the exit position of the first end face, the second ground sensing coil is connected to a second ground sensing coil controller to detect vehicle signals, the output of the second ground sensing coil controller is connected to the first controller, and the number of vehicles exiting the first end face is counted; a third ground sensing coil is arranged at the exit position of the second end face, the third ground sensing coil is connected to a third ground sensing coil controller to detect vehicle signals, the output of the third ground sensing coil controller is connected to the second controller, and the number of vehicles exiting the second end face is counted.

[0053] In another specific embodiment, the control system of the present invention includes a liquid crystal screen with a touch function, which is connected to the first controller and is used to display the traffic conditions of the tunnel and set the interval time of the traffic lights.

[0054] In another specific embodiment, the control system of the present invention includes a control box, which includes a construction site control box and an urban area control box. The construction site control box has no operation and display functions, and the urban area control box can perform manual and automatic switching and touch screen operation, and observe system power-on and fault problems.

[0055] (1) Before powering on the system, make sure that: the control box on the construction site is powered on first; and the knob of the control box on the city side is in manual mode.

[0056] (2) Open the control box door on the city side, turn on the air switch to power on the system, and then observe the status of the indicator lights on the door. Normally, the power and manual lights are on, and the automatic and fault lights are off.

[0057] (3) Observe the indicator lights on the construction site and the urban area. The normal state is that the light on the construction site is green and the light on the urban area is red.

[0058] (4) After confirming that there are no vehicles in the tunnel, the machine can be switched to automatic mode. At this time, the manual indicator light on the door goes out and the automatic indicator light comes on.

[0059] (5) If the fault light on the door comes on, switch to manual mode immediately and check the fault description to troubleshoot.

[0060] In another specific implementation, the LCD screen includes three interfaces: a main interface, an operator interface, and a time correction interface.

[0061] (1) Monitoring content

[0062] In this interface, the tunnel traffic situation can be monitored. In the main interface, the left side is the construction site side, and the right side is the urban side. The corresponding traffic lights indicate the traffic status. When there are no cars in the tunnel, the construction site side is red and the urban side is green. When the pole is in the horizontal direction, it means that traffic is prohibited; when it is in the vertical direction, it means that traffic is allowed. If there is a car passing on one side and a car waiting on the other side, the vehicle will be displayed on the corresponding side and the estimated remaining waiting time will be displayed above.

[0063] (2) Operation (Note: All operations require operator authority or above)

[0064] In manual mode, click the corresponding gate or indicator light, and a switch will pop up to control the gate or indicator light separately, or click it again to make it disappear. When operating for the first time, a window will pop up to ask for identity login and authentication.

[0065] In manual mode, click the "Beicen" icon in the upper left corner to enter the operator interface.

[0066] This interface can set the start and end times of morning and evening peaks and normal periods, as well as the maximum waiting time on each side during the period, and the maximum time in both directions for one-way traffic.

[0067] Click the corresponding box and a number box will pop up to ask you to enter a new setting value. Click "OK" to check the parameter setting and save it. If the parameter setting is incorrect (such as the start time is less than the end time), a corresponding warning will pop up, the parameters cannot be saved, and you are required to re-enter. If the parameters are correct, the new time will be saved and return to the main interface; click "Cancel" to not save the parameters and return to the main interface.

[0068] In manual mode, click the time in the upper right corner of the main interface to enter the time correction interface (operator authority or above is required).

[0069] The left box contains the current date and time. You can click the right box to correct the time (according to the date and time requirements, the input value must be within a reasonable range). After setting, click OK to change the current time to the corrected time and return to the main interface. You can also click "Return" to cancel the revision and return to the main interface.

[0070] In another specific implementation, when the communication indicator light flashes, it means that there is a communication problem. Please switch to manual mode first, and then check whether the 485 ports on the PLC on the construction site and the city side are loose. After troubleshooting, it is recommended to turn off the power of the control boxes on both sides, wait for 10 seconds, then turn on the power of both sides and check whether the communication is normal.

[0071] In another specific implementation, when an error warning appears in the touch screen parameter setting, please check whether the parameter setting is correct. The morning rush hour can only be set to 0-11 o'clock, the evening rush hour can only be set to 12-23 o'clock, the maximum waiting time in minutes can only be set to 2-10 minutes, the maximum number of minutes for one-way passage can only be set to 0-4 minutes, and other minutes or seconds can only be set to 0-59.

[0072] In a specific embodiment, a method for controlling vehicle traffic using a single-lane tunnel bidirectional traffic intelligent control system provided by the present invention includes the following steps:

[0073] Step 1: Control the first gate:

[0074] The first gate is opened when the following conditions are met simultaneously: (a) the first traffic light is currently green; (b) the first ground sensor coil detects that there is a waiting vehicle;

[0075] Step 2: Control the fourth gate:

[0076] The fourth gate is opened only when the following conditions are met: (a) the second traffic light is currently green; (b) the second ground sensor coil detects that there is a waiting vehicle;

[0077] Step 3: Dynamically adjust traffic light time:

[0078] The traffic light time is dynamically adjusted based on a fixed time: (a) When there is no vehicle in the green light direction but there is a waiting vehicle in the red light direction, the traffic light can be switched; (b) When the green light direction of the first port is during peak hours, the green light time can be increased while the green light time of the second port is shortened; When the green light direction of the second port is during peak hours, the green light time can be increased while the green light time of the first port is shortened.

[0079] In another specific embodiment, a method for controlling vehicle traffic using a single-lane tunnel bidirectional traffic intelligent control system provided by the present invention includes the following steps:

[0080] Step 1: Control the first gate:

[0081] The first gate can be opened only when the following conditions are met: (a) the first traffic light is currently green; (b) the first license plate recognition system outputs a gate opening signal, and the first controller detects the signal and controls the first gate to open, or the management personnel checks the vehicle and confirms that the vehicle can pass, and then remotely opens the first gate;

[0082] Step 2: Control the fourth gate:

[0083] The fourth gate is opened when the following conditions are met simultaneously: (a) the second traffic light is currently green and in the pass state; (b) the second license plate recognition system outputs a gate opening signal, and the second controller controls the fourth gate to open after detecting the signal, or the management personnel checks the vehicle and confirms that the vehicle can pass, and remotely opens the fourth gate;

[0084] Step 3: Dynamically adjust traffic light time:

[0085] The traffic light time is dynamically adjusted based on a fixed time: (a) When there is no vehicle in the green light direction but there is a waiting vehicle in the red light direction, the traffic light can be switched; (b) When the green light direction of the first port is during peak hours, the green light time can be increased while the green light time of the second port is shortened; When the green light direction of the second port is during peak hours, the green light time can be increased while the green light time of the first port is shortened.

[0086] In a specific embodiment, a method for controlling vehicle passage time (green light time) using a single-lane tunnel two-way traffic intelligent control system provided by the present invention includes the following steps:

[0087] Step 1: Use a fixed travel time rotation method to control the traffic of vehicles in two directions;

[0088] Step 2: At the entrance of the first end face, when the first traffic light is green, a timer is set for each vehicle entering; when the green time of the first traffic light ends, the first controller outputs a control to close the first gate, and the first traffic light switches to red. The second controller is notified to output a control to open the fourth gate, and the second traffic light switches to green, until the timing of the last vehicle reaches the time threshold T.

[0089] Step 3, at the entrance of the second end face, when the second traffic light is green, a timer is started for each vehicle that enters; when the green time of the second traffic light ends, the second controller outputs a control to close the fourth gate, and the second traffic light switches to red. The second controller waits until the timing of the last vehicle reaches the time threshold T before notifying the first controller output to control the first gate to open and the first traffic light switches to green.

[0090] In another specific embodiment, a method for controlling vehicle passage time (green light time) using a single-lane tunnel two-way traffic intelligent control system provided by the present invention comprises the following steps:

[0091] Step 1: Use a fixed travel time rotation method to control the traffic of vehicles in two directions;

[0092] Step 2: At the entrance of the first end face, when the first traffic light is green, the count is added for each vehicle entering, and at the exit of the second end face, the count is subtracted for each vehicle leaving; when the green time of the first traffic light ends, the first controller outputs a control to close the first gate, and the first traffic light switches to red, and waits until the count value of the vehicle is zero before notifying the second controller to output a control to open the fourth gate, and the second traffic light switches to green;

[0093] Step 3, at the entrance of the second end face, when the second traffic light is green, the count is added for each vehicle entering, and at the exit of the first end face, the count is subtracted for each vehicle leaving; when the green light time of the second traffic light ends, the second control output controls the fourth gate to close, the second traffic light switches to red, and waits until the count value of the vehicle is zero before notifying the first controller output to control the first gate to open and the first traffic light switches to green.

[0094] Embodiment 1:

[0095] The system controls three gates through a control box on each side of the tunnel. The specific process is as follows:

[0096] (1) When there are no vehicles in the tunnel, the traffic light on the city side is green and the traffic light on the construction site side is red. When a vehicle is sensed to have reached the corresponding gate (the traffic light on the construction site side turns green), the barrier is automatically lifted to allow the vehicle to pass (the traffic light on the construction site side automatically turns red after the vehicle is allowed to pass), and the light on the opposite side turns red at the same time. After the set passage time, both sides return to their original state.

[0097] (2) If a vehicle is passing in a certain direction and a vehicle enters the same side, the time will be reset and the status of the traffic lights and gates on the other side will remain unchanged;

[0098] (3) When a vehicle is passing in a certain direction, the barrier on the other side senses the arrival of a vehicle and keeps the barrier in a horizontal no-passing state. At the same time, the timer starts. When the waiting time reaches the set value, the traffic light on the current passing side turns red, and the green light on the other side is turned on to allow passage.

[0099] In manual mode, all gates and traffic lights are in manual switch mode and are completely controlled manually.

[0100] The present invention is described in detail above with reference to the accompanying drawings and embodiments, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of ordinary technicians in the field without departing from the purpose of the present invention. The contents not described in detail in the present invention can adopt the existing technology.

Claims

1. An intelligent control system for two-way traffic in a single-lane tunnel, characterized in that: The control system includes a first barrier gate control unit and a second barrier gate control unit, the first barrier gate control unit is arranged at the first port of the tunnel, and the second barrier gate control unit is arranged at the second port of the tunnel; the first barrier gate control unit includes a first controller and a first traffic light indicating traffic, the first controller and the first traffic light indicating traffic are arranged at the first port of the tunnel, the first barrier gate is arranged at the entrance position, and the second barrier gate is arranged at the exit position; the first controller is connected to the first barrier gate and the second barrier gate to control the opening and closing of the first barrier gate and the second barrier gate; the first controller is connected to the first traffic light indicating traffic to control the display of green light and red light respectively; the second barrier gate control unit includes a second controller and a second traffic light indicating traffic, the second controller and the second traffic light indicating traffic are arranged at the second port of the tunnel, a fourth barrier gate is arranged at the entrance position, and a third barrier gate is arranged at the exit position; The second controller is connected with the third gate and the fourth gate to control the opening and closing of the third gate and the fourth gate; the second controller is connected with the second traffic light indicating traffic to control the display of the green light and the red light respectively.

2. The intelligent control system for two-way traffic in a single-lane tunnel according to claim 1, characterized in that: The first barrier gate control unit also includes a first ground sensing coil and a first ground sensing coil controller. The first ground sensing coil is arranged at the front end of the first barrier gate, and the first ground sensing coil is connected to the first ground sensing coil controller to detect vehicle signals, and the output of the first ground sensing coil controller is connected to the first controller; the output of the first controller is connected to the opening control input ports of the first barrier gate and the second barrier gate, and can control the opening and closing of the first barrier gate and the second barrier gate; the second barrier gate control unit also includes a fourth ground sensing coil and a fourth ground sensing coil controller. The fourth ground sensing coil is arranged at the front end of the fourth barrier gate, and the fourth ground sensing coil is connected to the fourth ground sensing coil controller to detect vehicle signals, and the output of the fourth ground sensing coil controller is connected to the second controller; the output of the second controller is connected to the opening control input ports of the third barrier gate and the fourth barrier gate, and can control the opening and closing of the third barrier gate and the fourth barrier gate.

3. The intelligent control system for two-way traffic in a single-lane tunnel according to claim 1 is characterized in that: The first controller is connected to the second controller via a 485 bus; the first controller is set as the master controller, responsible for setting the traffic light time, and sending the traffic light status to the second controller via the 485 bus; the second controller is a slave controller, receiving the traffic light status sent by the first controller, and sending the vehicle waiting situation at the second port of the tunnel to the first controller.

4. The intelligent control system for two-way traffic in a single-lane tunnel according to claim 1 is characterized in that: The first gate is provided with a first license plate recognition system, and the control output of the first license plate recognition system is connected to the input port of the first controller; the fourth gate is provided with a second license plate recognition system, and the control output of the second license plate recognition system is connected to the input port of the second controller.

5. The intelligent control system for two-way traffic in a single-lane tunnel according to claim 1 is characterized in that: The first barrier control unit also includes a second ground sensing coil and a second ground sensing coil controller. The second ground sensing coil is arranged at the exit of the first end face. The second ground sensing coil is connected to the second ground sensing coil controller to detect vehicle signals. The output of the second ground sensing coil controller is connected to the first controller to count the vehicles exiting the first end face. The second barrier control unit also includes a third ground sensing coil and a third ground sensing coil controller. The third ground sensing coil is arranged at the exit of the second end face. The third ground sensing coil is connected to the third ground sensing coil controller to detect vehicle signals. The output of the third ground sensing coil controller is connected to the second controller to count the vehicles exiting the second end face.

6. The intelligent control system for two-way traffic in a single-lane tunnel according to claim 1, characterized in that: The control system also includes a liquid crystal screen with a touch function, which is connected to the first controller and is used to display the traffic conditions of the tunnel and set the interval time of the traffic lights.

7. A method for intelligent control of two-way traffic in a single-lane tunnel, using the intelligent control system for two-way traffic in a single-lane tunnel according to claim 1, characterized in that: The method comprises: Step 1: Control the first gate: The first gate is opened when the following conditions are met simultaneously: (a) the first traffic light is currently green; (b) the first ground sensor coil detects that there is a waiting vehicle; Step 2: Control the fourth gate: The fourth gate is opened only when the following conditions are met: (a) the second traffic light is currently green; (b) the second ground sensor coil detects that there is a waiting vehicle; Step 3: Dynamically adjust traffic light time: The traffic light time is dynamically adjusted based on a fixed time: (a) When there is no vehicle in the green light direction but there is a waiting vehicle in the red light direction, the traffic light can be switched; (b) When the green light direction of the first port is during peak hours, the green light time can be increased while the green light time of the second port is shortened; When the green light direction of the second port is during peak hours, the green light time can be increased while the green light time of the first port is shortened.

8. A method for intelligent control of two-way traffic in a single-lane tunnel, using the intelligent control system for two-way traffic in a single-lane tunnel according to claim 1, characterized in that: The method comprises: Step 1: Control the first gate: The first gate can be opened only when the following conditions are met: (a) the first traffic light is currently green; (b) the first license plate recognition system outputs a gate opening signal, and the first controller detects the signal and controls the first gate to open, or the management personnel checks the vehicle and confirms that the vehicle can pass, and then remotely opens the first gate; Step 2: Control the fourth gate: The fourth gate is opened when the following conditions are met simultaneously: (a) the second traffic light is currently green and in the pass state; (b) the second license plate recognition system outputs a gate opening signal, and the second controller controls the fourth gate to open after detecting the signal, or the management personnel checks the vehicle and confirms that the vehicle can pass, and remotely opens the fourth gate; Step 3: Dynamically adjust traffic light time: The traffic light time is dynamically adjusted based on a fixed time: (a) When there is no vehicle in the green light direction but there is a waiting vehicle in the red light direction, the traffic light can be switched; (b) When the green light direction of the first port is during peak hours, the green light time can be increased while the green light time of the second port is shortened; When the green light direction of the second port is during peak hours, the green light time can be increased while the green light time of the first port is shortened.

9. A method for intelligent control of two-way traffic in a single-lane tunnel according to any one of claims 7 or 8, characterized in that: The control method for controlling the vehicle travel time includes: Step 1: Use a fixed travel time rotation method to control the traffic of vehicles in two directions; Step 2: At the entrance of the first end face, when the first traffic light is green, a timer is set for each vehicle entering; when the green time of the first traffic light ends, the first controller outputs a control to close the first gate, and the first traffic light switches to red. The second controller is notified to output a control to open the fourth gate, and the second traffic light switches to green, until the timing of the last vehicle reaches the time threshold T. Step 3, at the entrance of the second end face, when the second traffic light is green, a timer is started for each vehicle that enters; when the green time of the second traffic light ends, the second controller outputs a control to close the fourth gate, and the second traffic light switches to red. The second controller waits until the timing of the last vehicle reaches the time threshold T before notifying the first controller output to control the first gate to open and the first traffic light switches to green.

10. A method for controlling two-way traffic in a single-lane tunnel according to any one of claims 7 or 8, characterized in that: The control method for controlling the vehicle travel time includes: Step 1: Use a fixed travel time rotation method to control the traffic of vehicles in two directions; Step 2: At the entrance of the first end face, when the first traffic light is green, the count is added for each vehicle entering, and at the exit of the second end face, the count is subtracted for each vehicle leaving; when the green time of the first traffic light ends, the first controller outputs a control to close the first gate, and the first traffic light switches to red, and waits until the count value of the vehicle is zero before notifying the second controller to output a control to open the fourth gate, and the second traffic light switches to green; Step 3, at the entrance of the second end face, when the second traffic light is green, the count is added for each vehicle entering, and at the exit of the first end face, the count is subtracted for each vehicle leaving; when the green light time of the second traffic light ends, the second control output controls the fourth gate to close, the second traffic light switches to red, and waits until the count value of the vehicle is zero before notifying the first controller output to control the first gate to open and the first traffic light switches to green.

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