A safety warning system for toll booth lane passage

Abstract

The utility model belongs to the field of traffic facilities safety technology relates to a toll station lane traffic safety early warning system, in view of the existing toll station safety device early warning unreliable, the deficiency of structure dispersion no linkage design. It contains strip concrete toll island, along the vehicle traffic direction is called weighing detection area, personnel operation area, traffic control area, personnel operation area is equipped with toll booth and alarm trigger button, toll island front end is equipped with lane alarm display screen and alarm lamp, weighing detection area is equipped with the integrated camera of overloading and infrared grating foundation, traffic control area is equipped with two in one body railing machine and so on equipment, still integrates singlechip control unit and voltage stabilizing circuit, can be linked with the existing toll, overrunning detection system. The system forms " trigger - control - warning " closed loop, promotes the safety of the staff to walk through the lane, improves toll identification accuracy and traffic efficiency, adapts to the existing facilities without large-scale reconstruction.

Description

Technical Field

[0001] This utility model belongs to the field of traffic facility safety technology, specifically relating to a safety early warning system for toll station lane passage. Background Technology

[0002] Safety warning devices for tollbooth lane passage are key facilities to ensure orderly vehicle passage and the safety of staff in tollbooth areas. Their main function is to monitor and warn of vehicle dynamics and personnel activity status in the lanes to avoid conflicts between vehicles and pedestrians, and maintain the efficiency and safety of toll collection operations. In particular, for scenarios where staff need to temporarily cross tollbooth lanes, it is necessary to provide timely reminders to oncoming vehicles to avoid safety risks.

[0003] Existing lane safety devices at toll stations mostly use static reflective signs or manually held warning signs. Some simple systems, while equipped with a single alarm button, can only trigger simple audio and visual alerts and lack integrated control units and linkage mechanisms. Structurally, they do not form a complete closed loop of "trigger-warning-control." For example, the alarm button and warning device are often directly and simply connected without a stable power supply and logic control module. Warning devices are mostly independent small lights or signs that are not integrated with vehicle guidance display equipment at the front of the lane. At the same time, the basic structures used for auxiliary safety in existing devices (such as infrared grating installation bases, coil embedding protection structures, etc.) are designed simply and lack unified installation and fixing standards. This leads to problems such as warning delays, loose equipment, and insufficient protective performance during use, making it impossible to reliably achieve proactive warnings and safety protection for staff crossing the lane. Utility Model Content

[0004] In view of the shortcomings of existing toll station lane safety devices, such as poor early warning reliability, scattered structure without linkage, and non-standard installation, this utility model provides a safety early warning system for toll station lane passage. Through integrated structural design and linkage control, it improves the early warning safety and equipment stability when staff cross the lane.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: A safety warning system for toll station lane passage according to this utility model includes a toll island with a long strip-shaped concrete structure. The toll island is divided into a weighing and detection area, a personnel operation area, and a passage control area along the vehicle passage direction. The personnel operation area is equipped with a toll booth with a closed box structure. The toll booth is fixedly installed on the upper surface of the toll island near the inner side of the lane. An alarm trigger button is detachably installed at the rear of the toll booth and close to the edge of the toll island through a metal bracket. The metal bracket is welded and fixed to the pre-embedded steel plate of the toll island. The toll island is equipped with a lane warning display screen made of powder-coated steel plate at its front end. The display screen is a rectangular box structure with a display panel on the side facing the vehicle entry point and an integrated warning light on the top. The weighing detection area is located on the left side of the toll island, near the vehicle entry point. A weight-control integrated camera is vertically mounted on the side of the toll island in this area. A first infrared grating base is fixed to the side of the toll island below the first infrared grating base, and a second infrared grating base is poured on the road shoulder corresponding to the first infrared grating base. The lane between the first and second infrared grating bases is the weighing area. The passage... The control area is located on the side of the toll booth away from the weighing and detection area. A two-in-one barrier gate and a license plate recognition device are sequentially fixed to the surface of the toll island in this area. A hoisting RSU is suspended directly above the two-in-one barrier gate via a portal frame. An induction coil and a barrier lowering coil are embedded in the lane base in front of the barrier gate. A communication area is located on the side of the barrier lowering coil away from the induction coil. The alarm trigger button is electrically connected to the lane alarm display screen and alarm lights via wired lines. The lane alarm display screen displays the "Pedestrian crossing, please give way" warning message. The control area also includes a microcontroller control unit and a switch. The power supply voltage regulator circuit integrates the microcontroller control unit and the switching power supply voltage regulator circuit. The input terminal of the switching power supply voltage regulator circuit is connected to an AC220V power supply via a wire, and the output terminal is electrically connected to the microcontroller control unit, the lane alarm display screen, and the alarm light, respectively. The alarm trigger button is electrically connected to the signal input pin of the microcontroller control unit via a wired connection through a terminal block. The lane alarm display screen and the alarm light are electrically connected to the signal output pin of the microcontroller control unit via signal cables. The microcontroller control unit and the switching power supply voltage regulator circuit are both fixedly installed inside the rectangular housing of the lane alarm display screen.

[0006] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages compared with the prior art:

[0007] This invention divides the toll island into multiple functional areas, achieving an orderly layout of various devices. The alarm trigger button, lane alarm display screen, and alarm lights are linked through a single-chip microcomputer control unit. Upon triggering, text display and audible and visual alarms are simultaneously activated, enhancing the warning effect on drivers. Each device is installed according to structural specifications such as pre-embedded steel plates and portal brackets. Combined with the design of insulating protective sleeves around the coils and pre-embedded bolts inside the foundation, the installation stability and service life of the equipment are enhanced. The integrated switching power supply voltage regulator circuit ensures stable power supply to each electrical component, avoiding warning delays or malfunctions. The whole system forms a complete safety early warning closed loop of "trigger-control-warning," effectively solving the problems of unreliable early warning and dispersed structure of existing devices, and significantly improving the safety of toll station staff crossing the lanes.

[0008] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of a safety early warning system for toll station lane passage according to the present invention;

[0010] Figure 2 This is a three-dimensional schematic diagram of a safety early warning system for toll station lane passage according to the present invention;

[0011] Figure 3 This is an overall layout diagram of a toll station lane safety warning system for toll station traffic according to the present invention;

[0012] Figure 4 This is a control timing diagram of a safety warning system for toll station lane passage according to the present invention;

[0013] Figure 5 This is a circuit connection diagram of an electronic component for a safety warning system for toll station lane passage according to the present invention.

[0014] Figure 6 This utility model presents a flowchart of the collaborative workflow of the traffic control area equipment in a safety early warning system for toll station lane passage.

[0015] As shown in the figure:

[0016] 1. Toll island; 2. Weighing area; 3. Toll booth; 4. Alarm trigger button; 5. Lane alarm display screen; 6. Alarm light; 7. Integrated overload control camera; 8. First infrared grating base; 9. Second infrared grating base; 10. Two-in-one barrier gate; 11. License plate recognition device; 12. Hoisted RSU; 13. Induction coil; 14. Barrier drop coil; 15. Communication area. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] It should be noted that the terms "vertical," "horizontal," "up," "down," "left," "right," and similar expressions used in this article are for illustrative purposes only and do not represent the only possible implementation.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the description of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention; the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0020] like Figure 1 As shown, the toll island 1 is a long, rectangular concrete structure, divided sequentially along the "vehicle travel direction" into a weighing and inspection area, a personnel work area, and a traffic control area.

[0021] Weighing and detection area: The integrated overload control camera 7 is fixed to the side of the vehicle entry end on the left side of the toll island 1 by a vertical bracket. The second infrared grating base 9 below it is a rectangular concrete block, which is welded and fixed to the steel plate pre-embedded on the side of the toll island 1. The first infrared grating base 8 and the second infrared grating base 9 at the corresponding road shoulder correspond one-to-one along the lane width direction, and the lane area between them is the weighing area 2.

[0022] Personnel work area: Toll booth 3 is a closed box structure, which is fixed to the upper surface of toll island 1 near the inner side of the lane by expansion bolts; a metal bracket is welded to the rear of toll booth 3 and close to the edge of toll island 1, and the alarm trigger button 4 is detachably installed on the bracket (the end face of the button is flush with the surface of the bracket); a lane alarm display screen 5 made of steel plate powder coating is fixed to the front end of toll island 1 (vehicle entry side), and an alarm light 6 is integrated on its top;

[0023] Traffic control area: The two-in-one barrier gate 10 is a column structure, which is fixed to the upper surface of the toll island 1 by pre-embedded bolts; the license plate recognition device 11 is installed next to the two-in-one barrier gate 10 by an inclined bracket; the hoisting RSU 12 is hoisted above the lane by a gantry bracket (the two ends of the gantry bracket are welded to the pre-embedded steel plate of the toll island 1); in the base layer of the lane in front of the two-in-one barrier gate 10, the induction coil 13 and the drop coil 14 are buried in parallel, and the communication area 15 is located to the side of the drop coil 14;

[0024] Connection relationship: The alarm trigger button 4 is electrically connected to the lane alarm display screen 5 and the alarm light 6 through the wired line in the pre-buried conduit of the toll island 1.

[0025] In this implementation plan, Figure 1 The planar layout achieves physical separation of functional areas, avoiding equipment interference; the corresponding arrangement of the infrared grating base provides a stable benchmark for over-limit detection, ensuring signal accuracy; the layout of the alarm trigger button close to the toll booth facilitates quick operation; the lane alarm display screen is set at the front of the vehicle entering, allowing the driver to receive a warning 5-8 seconds in advance, solving the problem of delayed warning position in existing devices; the parallel embedding of the induction coil and the barrier coil can accurately detect the vehicle position, providing reliable signal support for traffic control.

[0026] like Figure 2 As shown, the integrated overload control camera 7 is fixed to the side of the toll island 1 by an independent metal bracket. The bracket height is higher than the roof of small vehicles to ensure an unobstructed shooting angle. The second infrared grating base 9 is a rectangular concrete structure with its top flush with the surface of the toll island 1. Bolts are pre-embedded inside to fix the infrared grating. The top of the first infrared grating base 8 at the corresponding shoulder is flush with the road shoulder ground. The toll booth 3 is a closed metal box with a cable interface reserved on the side wall for connection to the lane alarm display screen 5. The alarm light 6 (with the light facing the vehicle entry end) is fixed on the top by a bracket. The two-in-one barrier gate 10 is a column structure, and the barrier arm can cover the lane width when extended. The license plate recognition device 11 is installed by an adjustable angle bracket with the lens facing the vehicle entry direction. The hoisted RSU 12 is hoisted above the lane by a gantry bracket (the bracket beam height is higher than 4.5m, suitable for large vehicles).

[0027] In this implementation plan, Figure 2 The three-dimensional layout optimizes space utilization, and the high bracket installation of the integrated overload control camera solves the problem of obstructed view, ensuring accurate collection of information on overloaded vehicles. The top-facing design of the alarm light increases the visibility distance of the warning light to over 50m, solving the problem of insufficient conspicuousness of existing warning lights. The layout of the two-in-one barrier gate and the suspended RSU avoids lane space occupation and ensures the passage of large vehicles. The flush installation of the infrared grating foundation avoids the risk of vehicle collision and extends the service life of the equipment.

[0028] like Figure 3 As shown, along the inner side of the lane from the direction of vehicle entry to exit, an integrated overload control camera, toll booth, license plate recognition device, two-in-one barrier gate, and suspended RSU are arranged in sequence; the outer side of the lane is correspondingly arranged with a second infrared grating base and an alarm trigger button; the functional area correspondence is as follows: the weighing detection area corresponds to the integrated overload control camera on the inner side of the lane and the second infrared grating base on the outer side, the personnel operation area corresponds to the toll booth on the inner side of the lane and the alarm trigger button on the outer side, and the traffic control area corresponds to the license plate recognition device, two-in-one barrier gate, and suspended RSU on the inner side of the lane.

[0029] In this implementation plan, Figure 3 The zoning layout clearly defines the collaborative relationship between the equipment. Staff can operate the alarm trigger button on the outside of the lane to trigger the warning without entering the lane, thus solving the safety hazard of existing devices that require entering the lane to operate. The equipment on the inside of the lane is arranged along the "detection-operation-control" process, which improves the system's operating efficiency. The one-to-one correspondence between functional areas and equipment facilitates later fixed-point maintenance and reduces operation and maintenance costs.

[0030] like Figure 4 As shown, the trigger is triggered when the toll collector presses the alarm trigger button 4 on the outside of the lane, which sends a trigger signal to the microcontroller control unit.

[0031] Control: The microcontroller control unit synchronously sends a "start red strobe" signal to the alarm light 6 and a "display 'pedestrian crossing caution'" signal to the lane alarm display screen 5;

[0032] Response: Warning light 6 starts flashing, lane warning display screen 5 displays warning text, and oncoming drivers receive the information and slow down to avoid the vehicle.

[0033] In this implementation plan, Figure 4 The timing mechanism enables synchronous linkage of "trigger-control-response". Compared with the existing single sound and light prompts, the signal distribution of the single-chip microcomputer control unit ensures that the two devices respond at the same time, solving the problem of warning delay. The toll collector can complete the trigger operation within 2 seconds, which simplifies the process and improves his own safety.

[0034] like Figure 5 As shown, the power supply link is as follows: AC220V power supply is connected to the switching power supply regulator circuit of the control core, and after being converted into the appropriate voltage, it supplies power to the microcontroller control unit, the LED module of the lane alarm display screen 5, and the red flashing module of the alarm light 6.

[0035] Signal Link: Alarm trigger button 4 is connected to the signal input pin of the microcontroller control unit via a terminal block, and the signal output pin of the microcontroller control unit is connected to the LED module and the red strobe module respectively;

[0036] Installation: The microcontroller control unit and the switching power supply voltage regulator circuit are fixed on the metal mounting plate inside the lane alarm display screen box 5, and an insulating protective shell is installed on the outside.

[0037] In this implementation plan, the switching power supply voltage regulator circuit solves the problem of faults caused by unstable power supply, increasing the mean time between failures (MTBF) of the equipment to more than 30,000 hours; the wiring terminals facilitate later maintenance and avoid the inconvenience of direct soldering of the lines; the circuit components are integrated into the display screen cabinet, reducing the size while the insulating protective shell improves the waterproof and dustproof performance, making it suitable for the outdoor environment of toll stations.

[0038] like Figure 6 As shown, when a vehicle enters the communication area 15, the hoisted RSU12 identifies the electronic tag signal; the induction coil 13 sends a "vehicle present" signal, and the license plate recognition device 11 collects the license plate information; the barrier coil 14 confirms that the vehicle is in the toll collection area, and the system verifies the electronic tag and license plate information; if the verification is successful, the two-in-one barrier gate 10 raises the barrier to allow passage; if the verification fails, the barrier remains closed and awaits manual processing.

[0039] In this implementation plan, the dual recognition of the hoisted RSU and the license plate recognition device solves the problem of easy error in the existing single recognition and improves the accuracy of toll collection; the position detection of the induction coil and the drop coil avoids invalid recognition; the linkage control of the two-in-one barrier gate increases the lane traffic efficiency by more than 20% while avoiding the safety risks of manual operation.

[0040] Based on the structural layout and functional logic of this utility model in the above specific embodiments, this device can be directly adapted and linked with the existing basic equipment of toll stations (such as existing toll management systems, traditional overload detection terminals, lane warning lights, etc.) without the need for large-scale modification of existing facilities. The following describes its usage and collaboration details with existing devices in different actual operating scenarios:

[0041] Scenario 1: Routine toll collection operations

[0042] In the daily ETC / manual toll collection operation at toll stations, this device works in conjunction with the existing toll management system and ETC terminals through a communication interface:

[0043] Installation details: The license plate recognition unit 11 of this device is connected to the main unit of the toll management system in the existing toll booth via an RS232 interface, and the hoisted RSU12 is connected to the existing ETC communication module; the induction coil 13 and the barrier coil 14 are connected to the input port of the existing lane vehicle detection terminal via signal cables.

[0044] Usage status of each structure:

[0045] The existing infrared gratings on the integrated overload control camera 7 and the first / second infrared grating base 9 / 9 are in "standby detection" state, and data acquisition is only started when the vehicle approaches the weighing area 2;

[0046] The alarm trigger button 4 is in the "pop-up reset" state, and the lane alarm display screen 5 and alarm light 6 are in the "standby black screen / light off" state.

[0047] When a vehicle enters the communication area 15, the hoisted RSU12 and the existing ETC terminal work together to identify the vehicle's electronic tag. The license plate recognition device 11 simultaneously transmits the license plate information to the existing toll collection system. The induction coil 13 triggers the "vehicle enters" command of the existing toll collection system. The barrier coil 14 feeds back the vehicle's location information to the existing system. After the existing system completes the billing, it sends a barrier lifting signal to the two-in-one barrier gate 10 to enable the vehicle to pass quickly.

[0048] Synergistic advantages with existing technologies: Compared to the existing single ETC / license plate recognition mode, the dual recognition module of this device works in conjunction with the existing toll collection system to improve the toll collection recognition accuracy to over 99.5%, while avoiding lane congestion caused by single recognition failure of existing devices.

[0049] Scenario 2: Staff crossing the driveway

[0050] When tollbooth staff need to cross lanes (such as to pass tickets or perform equipment inspections), this device will link with the existing lane safety warning system (such as existing lane entrance warning lights or temporary vehicle blocking devices):

[0051] Installation details: The microcontroller control unit of this device is connected to the linkage interface of the existing toll management system via a 485 bus. The signal output terminal of the lane alarm display screen 5 is connected to the control module of the existing lane entrance warning light. The alarm trigger button 4 is connected to the reserved trigger port of the existing lane control box via the waterproof cable pre-buried in the existing toll island.

[0052] Usage status of each structure:

[0053] When the staff presses the alarm trigger button 4 on the outside of the lane (next to the shoulder), the button remains in the "instantaneous trigger and then reset" state, and its signal is transmitted to the microcontroller control unit through the wiring terminal.

[0054] The microcontroller control unit synchronously activates the lane alarm display screen 5 (displaying "Pedestrian crossing, please give way") and the alarm light 6 (red flashing), and simultaneously sends a "Pedestrian crossing" signal to the existing toll collection system;

[0055] After receiving the signal, the existing toll collection system controls the existing warning lights at the lane entrance to flash synchronously and sends a "standby interception" command to the existing temporary vehicle blocking equipment; the integrated overload control camera 7 links with the existing monitoring system to start recording and storing video during the "pedestrian passage period";

[0056] After 15 seconds, the alarm light 6 and display screen 5 of this device automatically reset, and at the same time, a "warning ended" signal is sent back to the existing system, and the existing warning lights and vehicle blocking devices return to normal.

[0057] Synergistic advantages with existing technologies: In existing technologies, workers crossing the lane rely solely on manual hand signals. This device, by linking with existing warning and vehicle blocking equipment, forms a safety closed loop of "active triggering - multi-device early warning - automatic reset," completely avoiding the risk of vehicles running into lanes under the existing model.

[0058] Scenario 3: Handling of Overweight and Oversized Vehicles

[0059] When an overloaded vehicle enters the toll station, this device will work in conjunction with the existing overload detection and management platform (such as the existing weighbridge system and overload interception terminal):

[0060] Installation and linkage details: The integrated camera 7 of this device is connected to the video module of the existing over-limit detection platform via an RJ45 interface. The existing infrared gratings on the first / second infrared grating base 9 / 9 have their signal output terminals connected to the microcontroller control unit of this device, and then transmitted to the existing over-limit platform through the communication port of the microcontroller.

[0061] Usage status of each structure:

[0062] When a vehicle enters weighing area 2, the existing weighbridge system detects the vehicle's weight and transmits it to the existing overload platform; the integrated overload control camera 7 of this device starts capturing the vehicle's outline, and the first / second infrared grating detects the vehicle's height and width, and the data is synchronously uploaded to the existing overload platform.

[0063] After the existing platform determines that a vehicle is overweight, it sends an "overweight warning" command to the microcontroller control unit of this device. The microcontroller controls the lane alarm display screen 5 to switch to display "Overweight vehicles please leave the dedicated lane", and the alarm light 6 switches to "constant light + intermittent beeping" state.

[0064] At the same time, the existing overload platform sends a "keep closed" signal to the two-in-one barrier gate 10 and activates the existing overload interception terminal (such as a vehicle stopper); the hoisting RSU12 suspends its linkage with the existing ETC system to prevent overloaded vehicles from passing through by mistake.

[0065] After the overloaded vehicle leaves, the existing platform sends a "reset" command to this device, and the display screen 5 and alarm light 6 return to standby mode. All devices work together to return the existing system to normal operation mode.

[0066] Synergistic advantages with existing technologies: Existing overload detection relies solely on weighbridge data. This device's outline and size detection modules work in conjunction with existing platforms to achieve dual judgment based on "weight + outline," reducing the overload identification error to within 0.3%. At the same time, through multi-device coordinated processing, it avoids the problem of overloaded vehicles forcibly passing through under the existing model.

[0067] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the claims.

Claims

1. A safety warning system for toll station lane passage, characterized in that, The toll island (1) includes a long strip-shaped concrete structure, which is divided into a weighing and detection area, a personnel operation area and a traffic control area along the vehicle passage direction. The personnel work area is equipped with a closed box-type toll booth (3). The toll booth (3) is fixedly installed on the upper surface of the toll island (1) on the side close to the inner side of the lane. An alarm trigger button (4) is detachably installed behind the toll booth (3) and close to the edge of the toll island (1) by means of a metal bracket. The metal bracket is welded and fixed to the pre-embedded steel plate of the toll island (1). The front end of the toll island (1) is fixed with a lane alarm display screen (5) made of steel plate powder coating. The lane alarm display screen (5) is a rectangular box structure. The end face facing the vehicle entry side is provided with a display panel, and the top is integrated with an alarm light (6). The weighing detection area is located on the left side of the toll island (1) at the vehicle entry end. An integrated camera (7) for overload control is vertically installed on the side of the toll island (1) in this area. A first infrared grating base (8) is fixed on the side of the toll island (1) below it. A second infrared grating base (9) is poured at the shoulder of the road corresponding to the first infrared grating base (8). The lane between the first infrared grating base (8) and the second infrared grating base (9) is the weighing area (2). The passage control area is located on the side of the toll booth (3) away from the weighing detection area. The upper surface of the toll island (1) in this area is fixed with a two-in-one barrier gate (10) and a license plate recognition device (11). A hoisting RSU (12) is installed directly above the two-in-one barrier gate (10) through a gate-type bracket. An induction coil (13) and a drop coil (14) are embedded in the base layer of the lane in front of the two-in-one barrier machine (10). A communication area (15) is provided on the side of the drop coil (14) away from the induction coil (13). The alarm trigger button (4) is electrically connected to the lane alarm display screen (5) and the alarm light (6) via wired lines. The lane alarm display screen (5) is used to display the prompt message "Pedestrians crossing, please be careful and give way".

2. The safety early warning system for toll station lane passage according to claim 1, characterized in that, The button end face of the alarm trigger button (4) is flush with the surface of the metal bracket.

3. The safety early warning system for toll station lane passage according to claim 1, characterized in that, The display panel of the lane alarm display screen (5) uses an LED module.

4. The safety early warning system for toll station lane passage according to claim 1, characterized in that, The alarm light (6) is a red flashing alarm light and is linked to the lane alarm display screen (5) for control.

5. The safety early warning system for toll station lane passage according to claim 1, characterized in that, Both the first infrared grating base (8) and the second infrared grating base (9) are concrete foundations, with their tops flush with the road surface. The foundations are pre-embedded with mounting bolts for fixing the infrared gratings.

6. The safety early warning system for toll station lane passage according to claim 1, characterized in that, Both the induction coil (13) and the drop rod coil (14) are made of wire and are wrapped with an insulating protective sleeve.

7. The safety early warning system for toll station lane passage according to claim 1, characterized in that, The gantry bracket is welded and fixed to the pre-embedded steel plate of the toll island (1), and the surface of the bracket is treated with anti-rust powder coating.

8. The safety early warning system for toll station lane passage according to claim 1, characterized in that, The toll booth (3) is fixedly connected to the upper surface of the toll island (1) by expansion bolts.

9. The safety early warning system for toll station lane passage according to claim 1, characterized in that, It also includes a microcontroller control unit and a switching power supply voltage regulator circuit. The microcontroller control unit and the switching power supply voltage regulator circuit are integrated. The input terminal of the switching power supply voltage regulator circuit is connected to an AC220V power supply through a wire, and the output terminal is electrically connected to the microcontroller control unit, the lane alarm display screen (5), and the alarm light (6) respectively. The alarm trigger button (4) is electrically connected to the signal input pin of the microcontroller control unit through a wired line and a terminal block. The lane alarm display screen (5) and the alarm light (6) are electrically connected to the signal output pin of the microcontroller control unit through signal cables respectively.

10. The safety early warning system for toll station lane passage according to claim 9, characterized in that, The single-chip microcomputer control unit and the switching power supply voltage regulator circuit are both fixedly installed in the rectangular box of the lane alarm display screen (5). The box is equipped with a metal mounting plate. The single-chip microcomputer control unit and the switching power supply voltage regulator circuit are fixed to the metal mounting plate by fastening bolts, and both are equipped with an insulating protective shell on their outer periphery.

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