Method for preventing vehicle trailing toll evasion

Abstract

The invention discloses a method for preventing vehicle trailing fee evasion, which relates to the technical field of traffic management and comprises the following steps: step 1, a vehicle completes fee payment through a first fee payment unit and sends a first signal to a control center; the control center accumulates the number of the first signals as a first number; 2, the control center sends a second signal to the first gate, and the first gate is opened; the vehicle drives into the anti-escape channel; 3, after one vehicle passes through the first gate machine, the first gate machine is closed; 4, the first recognition unit recognizes the vehicles passing through the first gate and sends third signals to the control center, and the control center accumulates the number of the third signals as a second number; 5, if the second number is larger than the first number, the control center sends a fourth signal to the second gate, and the second gate is closed; the control center further sends a fifth signal to the alarm unit, and the alarm unit sends an alarm signal to the outside. Through the mutual cooperation of the devices, the toll evasion vehicle can be intercepted in time when the toll evasion vehicle trails.

Description

Technical Field

[0001] The invention relates to the technical field of traffic management, and in particular to a method for preventing vehicles from tailgating and evading tolls. Background Art

[0002] In order to cover the high construction and maintenance costs of highways, most highway exits are equipped with toll booths to raise and supplement funds. Similarly, parking lots also face multiple expenses including management fees and land use fees when providing parking services. Therefore, many parking lots charge a certain fee for parked vehicles. With the rapid development and widespread application of domestic information technology and automation technology, more and more parking lots and toll booths have begun to adopt self-service payment systems. After the car owner completes the payment by himself, the gate of the parking lot or toll booth can automatically control the opening and closing, realizing unattended operation around the clock, which greatly reduces management costs and labor expenses.

[0003] However, some car owners often choose to follow the car in front of them to evade payment. In fact, most gates are lift-bar mechanisms. In order to avoid accidentally hitting vehicles and causing disputes, many gates are designed to detect whether there are vehicles under the lift bar. When a vehicle is detected, the lift bar will be forced to stop even if it is falling. Those car owners who evade fees take advantage of the gap when the bar falls and the "goodwill loophole" in the design, follow the car in front of them to leave the venue, and evade fees, which ultimately causes the parking lot or highway management agency to lose their due profits. Summary of the invention

[0004] In view of the problems existing in the prior art, the present invention provides a method for preventing vehicles from tailgating and evading tolls, which can partially solve the problem of tailgating and evading tolls.

[0005] The technical solution of the present invention is achieved in this way:

[0006] A method for preventing vehicles from tailgating and evading tolls, applied to a target exit of a vehicle; a first gate is provided near the target exit; a second gate is provided at the target exit; the first gate and the second gate are both used to block and release vehicles; an anti-escape passage is formed between the first gate and the second gate; the anti-escape passage is a one-way passage and is not limited to a straight line; the second gate is normally opened;

[0007] It also includes a control center, a first payment unit, a first identification unit and an alarm unit; the first gate, the second gate, the first payment unit, the first identification unit and the alarm unit are all connected to the control center for communication;

[0008] The method comprises the following steps:

[0009] Step 1: The vehicle owner drives the vehicle to the first gate and completes payment through the first payment unit; the first payment unit sends a first signal to the control center; the control center accumulates the number of the first signals and records it as a first number;

[0010] Step 2: After receiving the first signal, the control center sends a second signal to the first gate, and the first gate opens; the vehicle enters the anti-escape channel;

[0011] Step 3: After a vehicle passes through the first gate, the first gate is closed;

[0012] Step 4: The first identification unit identifies the vehicle passing through the first gate and sends a third signal to the control center, and the control center accumulates the number of the third signals and records it as the second number;

[0013] Step 5: If the second number is greater than the first number, the control center sends a fourth signal to the second gate, and the second gate is closed; the control center also sends a fifth signal to the alarm unit, and the alarm unit sends an alarm signal to the outside world.

[0014] Under normal circumstances, the second gate is opened normally. As long as there is no phenomenon of following the vehicle to evade tolls, the user experience is basically the same as the original single gate function, and the speed of passing the gate will not be reduced due to the addition of an identification and detection device.

[0015] When the second number is greater than the first number, it indicates that there is a phenomenon of vehicles following other vehicles to evade fees. At this time, the second gate can be directly closed. At the same time, the first gate has been closed, so that the vehicles evading fees can be quickly intercepted, and relevant processing operations such as penalties can be carried out.

[0016] As a further optimization of the above solution, a second recognition unit is provided at the first gate; the second recognition unit is a camera; when a vehicle approaches the first gate, the second recognition unit takes a picture of the license plate on the front of the vehicle, obtains the picture and sends it to the control center; the control center analyzes the picture to obtain the license plate number, and determines whether the vehicle has paid the fee based on the license plate number.

[0017] As a further optimization of the above solution, the first identification unit is a gravity sensing device; the trigger weight of the gravity sensing device is 800kg-1200kg.

[0018] The gravity sensor can quickly identify whether a vehicle is passing by; the trigger weight is to identify whether it is the minimum weight of the vehicle; the trigger weight is set to avoid false triggering of the signal when low-weight creatures or objects such as pedestrians pass by. Generally speaking, the weight of a small private car is usually between 1.2 tons and 1.3 tons. For example, common mini cars such as QQ are about 0.9 tons. Compact cars are generally about 1.2 tons and mid-size cars are about 1.5 tons. Larger vehicles will only weigh more.

[0019] As a further optimization of the above solution, the gravity sensing device includes a base, a load-bearing plate and a pressure sensor;

[0020] The base is provided with slope parts at both ends along the direction of the anti-escape channel; a sunken deformation part is provided between the two slope parts; the load-bearing plate is installed in the deformation part; the deformation part has a space for the load-bearing plate to move up and down in the vertical direction; the pressure sensor and a plurality of evenly distributed buffer springs are installed between the load-bearing plate and the bottom of the deformation part;

[0021] The base is arranged in the anti-escape passage and close to the first gate;

[0022] In step 4, only when the vehicle passes through the load-bearing plate and the pressure of the load-bearing plate on the pressure sensor disappears, the first identification unit sends the third signal to the control center.

[0023] After the first gate is opened, the vehicle is in the acceleration stage; the gravity sensing device is arranged as a whole close to the first gate, and can perform detection and identification when the vehicle speed is low, and the identification accuracy is high.

[0024] As a further optimization of the above scheme, a plurality of first limit grooves are provided at the bottom of the deformation portion; a plurality of second limit grooves are provided on the lower side of the load-bearing plate; and one of the buffer springs corresponds one to one of the first limit grooves and one to the second limit groove respectively.

[0025] As a further optimization of the above solution, taking the length of a small parking space as one standard length, the length of the anti-escape passage is at least 6 standard lengths.

[0026] A gravity sensing device occupies at least one standard length; when the first recognition unit identifies a fleeing vehicle, the normal vehicle in front has traveled at least 4 standard lengths to intercept the fleeing vehicle, and when the fleeing vehicle is following closely, and at the same time, to avoid damage to any vehicle when the second gate is closed, the remaining at least two standard lengths form a deceleration area. The length of a small parking space is usually 5-6 meters.

[0027] As a further optimization of the above solution, the alarm unit is one or a combination of any multiple of a buzzer, a light unit, and a wireless signal sending device;

[0028] When the buzzer receives the fifth signal, it sends a sound alarm signal to the external environment;

[0029] When the lighting unit receives the fifth signal, it sends a red flashing light alarm signal to the external environment;

[0030] After receiving the fifth signal, the wireless signal sending device sends an alarm signal to the short-range terminal and / or the long-range terminal.

[0031] Vehicle owners or managers near the target exit can quickly learn about tailgating incidents or accidents through flashing lights and / or blasting sounds; managers can be informed of toll evasion or accidents through remote terminals / short-range terminals and handle them in a timely manner.

[0032] As a further optimization of the above solution, a movable car-stopping robot is also provided in the anti-escape channel; the width of the car-stopping robot is greater than or equal to 0.5 meters, and the height is greater than or equal to 1.5 meters;

[0033] After the second gate is closed, the car-stopping robot checks the vehicles in the anti-escape channel one by one until it stops in front of the escaped vehicle; the car-stopping robot sends a sixth signal to the control center, and the control center sends a seventh signal to the second gate;

[0034] After receiving the seventh signal, the second gate opens.

[0035] Even if there is a tailgating vehicle, in order to ensure safety, there is a distance of more than half a meter between the fleeing vehicle and the normal vehicle in front, which is enough for the intercepting robot to park. For small vehicles, the driver's line of sight is usually 1.2-1.6 meters high. After the second gate is opened, the paid vehicles in front of the fleeing vehicle can leave normally, and the intercepting robot is responsible for intercepting the fleeing vehicle.

[0036] The car-stopping robot is automatically controlled by an AI program or wirelessly controlled by a manager through a remote terminal or a short-range terminal.

[0037] As a further optimization of the above solution, a prompt information display unit is provided on the top of the car-stopping robot; when the car-stopping robot stops in front of the escaped vehicle, the prompt information display unit faces the escaped vehicle and displays payment prompt information;

[0038] The car-stopping robot is also provided with a third recognition unit; the third recognition unit is a camera; when the car-stopping robot approaches a vehicle, the third recognition unit takes a picture of the license plate on the front of the vehicle, obtains a picture and sends it to the control center; the control center analyzes the picture to obtain the license plate number, and determines whether the vehicle has paid the fee based on the license plate number;

[0039] A second payment unit is also provided in the anti-escape channel; or a second payment unit is also provided on the car-stopping robot, and the escaped vehicle pays the fee through the second payment unit; when the fee is successfully paid, the control center updates the second amount and the car-stopping robot leaves.

[0040] The third recognition unit is used to accurately identify the fleeing vehicle to avoid misidentification.

[0041] As a further optimization of the above solution, the second gate includes two states, namely, an interception state and an emergency state;

[0042] In the interception state, the second gate is closed after receiving the fourth signal;

[0043] In the emergency state, the second gate remains open.

[0044] The interception state and emergency state can be switched freely according to needs. For example, during holidays and other periods, there will be a peak in traffic flow at the highway intersection. In order to avoid the time consumption caused by dealing with toll evasion, you can choose to ignore the toll evasion phenomenon in the emergency state to ensure the normal and smooth flow of traffic.

[0045] Compared with the prior art, the present invention achieves the following beneficial effects:

[0046] The present invention provides a method for preventing vehicles from following and evading fees. By setting an anti-escape channel and a second gate, and coordinating the signal transmission of each unit and device, it can timely intercept and perform subsequent related processing operations when a vehicle that evades the fee or escapes, thereby avoiding the phenomenon of evading fees and reducing losses. The second gate is normally opened and is only temporarily closed when the phenomenon of evading fees occurs, which will not have a significant negative impact on the vehicle's passage experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 is a plan view of a target exit provided by an embodiment of the present invention;

[0048] Figure 2 is a schematic diagram of the overall structure of a first identification unit provided in an embodiment of the present invention;

[0049] Figure 3 yes Figure 2 Schematic cross-section diagram of

[0050] Figure 4 2 is a simplified diagram of a car-stopping robot provided in an embodiment of the present invention.

[0051] Reference numerals:

[0052] 1. Target export;

[0053] 2. Vehicles;

[0054] 3. First identification unit; 3-1. Base; 3-11. Slope; 3-12. Deformation portion; 3-13. First limiting groove; 3-2. Load-bearing plate; 3-21. Second limiting groove; 3-3. Pressure sensor; 3-4. Buffer spring;

[0055] 4. Second identification unit;

[0056] 5. The first gate;

[0057] 6. Second gate;

[0058] 7. Anti-escape passage; 7-1. Standard length;

[0059] 8. The first payment unit

[0060] 9. Car-stopping robot; 9-1. Third identification unit; 9-2. Prompt information display unit;

[0061] 10. The second payment unit. DETAILED DESCRIPTION

[0062] In order to make the purpose, technical solution and advantages of the present invention more clear, the technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is only a part of the embodiment of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0063] like Figures 1 to 4 As shown, this embodiment provides a method for preventing vehicles from tailgating and evading fees, which is applied to the target exit 1 of vehicle 2; a first gate 5 is provided near the target exit 1; in this embodiment, a second recognition unit 4 is provided at the first gate 5; the second recognition unit 4 is a camera; when vehicle 2 approaches the first gate 5, the second recognition unit 4 takes a picture of the license plate on the front of the vehicle 2, obtains the picture and sends it to the control center; the control center analyzes the picture to obtain the license plate number, and determines whether the vehicle 2 has paid the fee based on the license plate number.

[0064] A second gate 6 is provided at the target exit 1; both the first gate 5 and the second gate 6 are used to block and release the vehicle 2; an anti-escape passage 7 is formed between the first gate 5 and the second gate 6; the anti-escape passage 7 is a one-way passage and is not limited to a straight line.

[0065] The second gate 6 is normally opened.

[0066] It also includes a control center, a first payment unit, a first identification unit 3 and an alarm unit.

[0067] In this embodiment, the first identification unit 3 is a gravity sensing device; it includes a base 3-1, a load-bearing plate 3-2 and a pressure sensor 3-3. The preset trigger weight of the pressure sensor 3-3 is 800kg, and the preset value can also be adjusted to other values ​​according to needs.

[0068] The base 3-1 is provided with slope portions 3-11 at both ends along the anti-escape channel 7; a sunken deformation portion 3-12 is provided between the two slope portions 3-11; the load-bearing plate 3-2 is installed in the deformation portion 3-12; the deformation portion 3-12 has a space for the load-bearing plate 3-2 to move up and down in the vertical direction; a pressure sensor 3-3 and a plurality of evenly distributed buffer springs 3-4 are installed between the load-bearing plate 3-2 and the bottom of the deformation portion 3-12; specifically, in the present embodiment, a plurality of first limit grooves 3-13 are provided at the bottom of the deformation portion 3-12; a plurality of second limit grooves 3-21 are provided on the lower side surface of the load-bearing plate 3-2; and a buffer spring 3-4 corresponds one by one to a first limit groove 3-13 and a second limit groove 3-21, respectively.

[0069] The base 3-1 is arranged in the anti-escape channel 7 and close to the first gate 5; in this embodiment, the length of the small parking space is a standard length 7-1, and the length of the anti-escape channel 7 is 6 standard lengths 7-1. Among them, one gravity sensing device occupies one standard length 7-1; when the first recognition unit 3 recognizes the escape vehicle, the vehicle 2 driving normally in front at least completes 4 standard lengths 7-1, in order to intercept the escape vehicle, and at this time the escape vehicle is closely following the vehicle, and at the same time, to avoid damage to any vehicle 2 when the second gate 6 is closed, the remaining at least two standard lengths 7-1 form a deceleration area. The length of a small parking space is usually 5-6 meters.

[0070] The gravity sensor can quickly identify whether a vehicle 2 passes by; the trigger weight is to identify whether it is the minimum weight of the vehicle 2; the trigger weight is set to avoid false triggering of the signal when low-weight creatures or objects such as pedestrians pass by. Generally speaking, the weight of a small private car is usually between 1.2 tons and 1.3 tons. For example, common mini cars such as QQ are about 0.9 tons. Compact cars are generally about 1.2 tons and mid-size cars are about 1.5 tons. Larger vehicles 2 will only weigh more.

[0071] After the first gate 5 is opened, the vehicle 2 is in the acceleration stage; the gravity sensing device is arranged as a whole close to the first gate 5, and can perform detection and identification when the speed of the vehicle 2 is low, and the identification accuracy is high.

[0072] In this embodiment, the alarm unit is a combination of a buzzer, a light unit, and a wireless signal sending device;

[0073] In this embodiment, a movable car-stopping robot is also provided in the anti-escape channel 7, and the car-stopping robot is connected to the short-range terminal for communication; the width of the car-stopping robot is 0.5 meters, and the height is 1.5 meters. In this embodiment, a prompt information display unit 9-2 is provided on the top of the car-stopping robot.

[0074] The car-stopping robot is also provided with a third recognition unit 9-1; the third recognition unit 9-1 is a camera with adjustable pitch.

[0075] A second payment unit 10 is also provided in the anti-escape passage 7; the escaped vehicle pays the additional fee through the second payment unit 10.

[0076] The third recognition unit 9-1 is used to accurately identify the fleeing vehicle to avoid misidentification.

[0077] The first gate 5, the second gate 6, the first payment unit, the second payment unit 10, the first identification unit 3, the second identification unit 4, the third identification unit 9-1 and the alarm unit are all connected to the control center. The first payment unit and the second payment unit 10 are both media for displaying the payment QR code or mini program code, such as a display screen or a sticker.

[0078] The method comprises the following steps:

[0079] Step 1: The vehicle owner drives the vehicle 2 to the first gate 5 and completes payment through the first payment unit; the first payment unit sends a first signal to the control center; the control center accumulates the number of first signals and records it as the first number;

[0080] Step 2: After receiving the first signal, the control center sends a second signal to the first gate 5, and the first gate 5 opens; the vehicle 2 enters the anti-escape channel 7;

[0081] Step 3: After a vehicle 2 passes through the first gate 5, the first gate 5 is closed;

[0082] Step 4: The first identification unit 3 identifies the vehicle 2 passing through the first gate 5 and sends a third signal to the control center. Only when the vehicle 2 passes through the load-bearing plate 3-2 and the pressure of the load-bearing plate 3-2 on the pressure sensor 3-3 disappears, the first identification unit 3 sends a third signal to the control center. The control center accumulates the number of third signals and records it as the second number;

[0083] Step 5: If the second number is greater than the first number, the control center sends a fourth signal to the second gate 6, and the second gate 6 is closed; the control center also sends a fifth signal to the alarm unit, and the alarm unit sends an alarm signal to the outside world.

[0084] Specifically, when the buzzer receives the fifth signal, it sends a sound alarm signal to the external environment;

[0085] When the lighting unit receives the fifth signal, it sends a red flashing light alarm signal to the external environment;

[0086] After receiving the fifth signal, the wireless signal sending device sends an alarm signal to the manager holding the short-range terminal. The short-range terminal is a terminal located in the parking lot / highway intersection area. The car owner or manager near the target exit 1 can quickly understand the tailgating accident or accident through flashing lights and / or blasting sounds. The manager can be aware of the evasion of fees or accidents through the remote terminal / short-range terminal and deal with them in time.

[0087] Step 6: After the second gate 6 is closed, the vehicle-blocking robot checks the vehicles 2 in the anti-escape channel 7 one by one until it stops right in front of the escaping vehicle;

[0088] Specifically, when the car-stopping robot approaches vehicle 2, the third recognition unit 9-1 takes a picture of the license plate on the front of vehicle 2, obtains the picture and sends it to the control center; the control center analyzes the picture to obtain the license plate number, and determines whether vehicle 2 has paid the fee based on the license plate number.

[0089] After confirming the escaped vehicle, the vehicle-blocking robot sends a sixth signal to the control center, and the control center sends a seventh signal to the second gate 6;

[0090] After receiving the seventh signal, the second gate 6 opens.

[0091] When the car-stopping robot stops in front of the fleeing vehicle, the prompt information display unit 9-2 faces the fleeing vehicle and displays payment prompt information, such as "Please complete payment"; when the fee is successfully paid, the control center updates the second amount and the car-stopping robot leaves.

[0092] Even if there is a tailing vehicle, in order to ensure safety, there is a distance of more than half a meter between the escaping vehicle and the vehicle 2 running normally in front, which is enough for the car-blocking robot to park. For small vehicles 2, the driver's line of sight is usually 1.2-1.6 meters high. After the second gate 6 is opened, the paid vehicle 2 in front of the escaping vehicle can leave normally, and the car-blocking robot is responsible for intercepting the escaping vehicle.

[0093] The car-stopping robot is wirelessly controlled by management personnel via a short-range terminal.

[0094] Under normal conditions, the second gate 6 is normally open. As long as there is no phenomenon of following the vehicle to evade the fee, the user experience is basically the same as the original single gate function, and the gate speed will not be reduced due to the additional identification and detection device. In this embodiment, the second gate 6 includes two states, namely, the interception state and the emergency state;

[0095] In the interception state, the second gate 6 is closed after receiving the fourth signal;

[0096] In an emergency state, the second gate 6 remains open.

[0097] The interception state and emergency state can be switched freely according to needs. For example, during holidays and other periods, there will be a peak in traffic flow at the highway intersection. In order to avoid the time consumption caused by dealing with toll evasion, you can choose to ignore the toll evasion phenomenon in the emergency state to ensure the normal and smooth flow of traffic.

[0098] When the second number is greater than the first number, it indicates that there is a phenomenon of vehicle 2 following other vehicles to evade the fee. At this time, the second gate 6 is directly closed. Meanwhile, the first gate 5 is already closed, so that the evading vehicle 2 can be quickly intercepted and relevant processing operations such as punishment can be carried out.

[0099] According to the disclosure and teaching of the above description, those skilled in the art to which the present invention belongs may also make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should also fall within the scope of protection of the claims of the present invention. In addition, although some specific terms are used in this specification, these terms are only for the convenience of description and do not constitute any limitation to the present invention.

Claims

1. A method for preventing vehicles from tailgating and evading tolls, applied to a target exit of a vehicle; characterized in that: A first gate is provided near the target exit; a second gate is provided at the target exit; the first gate and the second gate are both used to block and release vehicles; an anti-escape passage is formed between the first gate and the second gate; the anti-escape passage is a one-way passage; the second gate is normally open; It also includes a control center, a first payment unit, a first identification unit and an alarm unit; the first gate, the second gate, the first payment unit, the first identification unit and the alarm unit are all connected to the control center for communication; The method comprises the following steps: Step 1: The vehicle owner drives the vehicle to the first gate and completes payment through the first payment unit; the first payment unit sends a first signal to the control center; the control center accumulates the number of the first signals and records it as a first number; Step 2: After receiving the first signal, the control center sends a second signal to the first gate, and the first gate opens; the vehicle enters the anti-escape channel; Step 3: After a vehicle passes through the first gate, the first gate is closed; Step 4: The first identification unit identifies the vehicle passing through the first gate and sends a third signal to the control center, and the control center accumulates the number of the third signals and records it as the second number; Step 5: If the second number is greater than the first number, the control center sends a fourth signal to the second gate, and the second gate is closed; the control center also sends a fifth signal to the alarm unit, and the alarm unit sends an alarm signal to the outside world.

2. A method for preventing vehicle tailgating and toll evasion according to claim 1, characterized in that: A second recognition unit is provided at the first gate; the second recognition unit is a camera; when a vehicle approaches the first gate, the second recognition unit takes a picture of the license plate on the front of the vehicle, obtains the picture and sends it to the control center; the control center analyzes the picture to obtain the license plate number, and determines whether the vehicle has paid the fee based on the license plate number.

3. A method for preventing vehicle tailgating and toll evasion according to claim 1, characterized in that: The first identification unit is a gravity sensing device; the trigger weight of the gravity sensing device is 800kg-1200kg.

4. A method for preventing vehicle tailgating and toll evasion according to claim 3, characterized in that: The gravity sensing device comprises a base, a load-bearing plate and a pressure sensor; The base is provided with slope parts at both ends along the direction of the anti-escape channel; a sunken deformation part is provided between the two slope parts; the load-bearing plate is installed in the deformation part; the deformation part has a space for the load-bearing plate to move up and down in the vertical direction; the pressure sensor and a plurality of evenly distributed buffer springs are installed between the load-bearing plate and the bottom of the deformation part; The base is arranged in the anti-escape passage and close to the first gate; In step 4, only when the vehicle passes through the load-bearing plate and the pressure of the load-bearing plate on the pressure sensor disappears, the first identification unit sends the third signal to the control center.

5. A method for preventing vehicle tailgating and toll evasion according to claim 4, characterized in that: The bottom of the deformation part is provided with a plurality of first limiting grooves; the lower side of the load-bearing plate is provided with a plurality of second limiting grooves; and one of the buffer springs corresponds to one of the first limiting grooves and one of the second limiting grooves respectively.

6. A method for preventing vehicle tailgating and toll evasion according to claim 4, characterized in that: Taking the length of a small parking space as one standard length, the length of the anti-escape passage is at least 6 standard lengths.

7. A method for preventing vehicle tailgating and toll evasion according to claim 1, characterized in that: The alarm unit is one or a combination of any of a buzzer, a light unit, and a wireless signal sending device; When the buzzer receives the fifth signal, it sends a sound alarm signal to the external environment; When the lighting unit receives the fifth signal, it sends a red flashing light alarm signal to the external environment; After receiving the fifth signal, the wireless signal sending device sends an alarm signal to the short-range terminal and / or the long-range terminal.

8. A method for preventing vehicle tailgating and toll evasion according to claim 7, characterized in that: A movable car-blocking robot is also provided in the anti-escape channel; the width of the car-blocking robot is greater than or equal to 0.5 meters, and the height is greater than or equal to 1.5 meters; After the second gate is closed, the car-stopping robot checks the vehicles in the anti-escape channel one by one until it stops in front of the escaped vehicle; the car-stopping robot sends a sixth signal to the control center, and the control center sends a seventh signal to the second gate; After receiving the seventh signal, the second gate opens.

9. A method for preventing vehicle tailgating and toll evasion according to claim 8, characterized in that: A prompt information display unit is provided on the top of the car-stopping robot; when the car-stopping robot stops in front of the fleeing vehicle, the prompt information display unit faces the fleeing vehicle and displays payment prompt information; The car-stopping robot is also provided with a third recognition unit; the third recognition unit is a camera; when the car-stopping robot approaches a vehicle, the third recognition unit takes a picture of the license plate on the front of the vehicle, obtains a picture and sends it to the control center; the control center analyzes the picture to obtain the license plate number, and determines whether the vehicle has paid the fee based on the license plate number; A second payment unit is also provided in the anti-escape channel; or a second payment unit is also provided on the car-stopping robot, and the escaped vehicle pays the fee through the second payment unit; when the fee is successfully paid, the control center updates the second amount and the car-stopping robot leaves.

10. A method for preventing vehicle tailgating and toll evasion according to claim 1, characterized in that: The second gate includes two states, namely, an interception state and an emergency state; In the interception state, the second gate is closed after receiving the fourth signal; In the emergency state, the second gate remains open.

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