A dedicated automatic alarm system and method for railway crossings

Abstract

This invention discloses an automatic alarm system and method for dedicated railway crossings, belonging to the field of dedicated railway crossing control technology. The invention includes a detection unit, a control unit, an alarm unit, and a monitoring unit. This invention solves the safety hazards of unattended crossings in the prior art. By using sensors, the automatic crossing control technology achieves advantages such as precise alarm timing and the ability to adjust the alarm time based on actual transportation needs. Utilizing the traffic flow statistics function of electronic police systems, it monitors the traffic flow at railway crossings in real time, automatically counting the number of various types of vehicles passing through at different times, and analyzing the traffic conditions at factory crossings. This provides accurate reference data for logistics scheduling and road condition optimization. Simultaneously, monitoring cameras can monitor the status of on-site equipment and pedestrians and vehicles at the crossing, thereby ensuring the status of on-site equipment and preventing personnel and vehicles from rushing across the crossing.

Description

Technical Field

[0001] This invention relates to the field of dedicated railway crossing control technology, specifically to an automatic alarm system and method for dedicated railway crossings. Background Technology

[0002] Among the various level crossings on dedicated railway lines within industrial enterprises, most are low-speed railways. With numerous level crossings and switches in the factory area, and complex shunting and train operation, level crossing safety has become one of the key factors affecting railway transportation safety.

[0003] Chinese patent CN111452842A discloses a control method for continuous alarm at railway crossings. This patent enables continuous alarm control mode, and the equipment can operate safely and reliably. It completely solves the problem of trains failing to reach the crossing within 90 seconds or the alarm being deactivated due to faults in the non-insulated track circuit equipment at the crossing. This meets the fault-oriented safety design principle of signal equipment and ensures the inherent safety of the equipment.

[0004] The aforementioned patent still has the following problems in actual use: due to the fact that the existing level crossings are basically in the stage of on-site personnel control, multi-point remote centralized control (remote control has only been used in recent years) and unattended mode, the phenomenon of people and vehicles rushing to cross the level crossing often occurs at unattended railway level crossings, which poses certain safety hazards; therefore, it does not meet the existing needs. In response, we have proposed a dedicated automatic alarm system and method for railway level crossings. Summary of the Invention

[0005] The purpose of this invention is to provide a dedicated automatic alarm system and method for railway crossings. A detection unit detects the arrival and departure of locomotives and transmits the detected signals to a control unit, enabling the control unit to take corresponding control actions. An alarm unit uses a proximity sensor to detect whether a locomotive is approaching the crossing and immediately activates an audible and visual alarm device when the locomotive approaches, thereby alerting pedestrians and vehicles. Simultaneously, a monitoring unit monitors pedestrians and vehicles at the crossing, preventing people and vehicles from rushing across the crossing after the alarm is triggered, thus solving the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a dedicated automatic alarm system for railway crossings, comprising:

[0007] The detection unit is used to detect the arrival and departure of the locomotive and transmit the detected signals to the control unit so that the control unit can make corresponding control.

[0008] The control unit, which uses a PLC controller, is used to control the opening and closing of the level crossing signal, and simultaneously uploads the status of the sensors, cables and signal equipment to the monitoring unit in real time.

[0009] The alarm unit is used to detect whether a locomotive is approaching a level crossing through a proximity sensor, and to immediately activate an audible and visual alarm device when the locomotive approaches the level crossing, thereby alerting pedestrians and vehicles.

[0010] The monitoring unit is equipped with the functions of storing data from on-site equipment at the level crossing and real-time images of the level crossing, monitoring the status of on-site equipment and pedestrians and vehicles at the level crossing, and playing back historical records of equipment triggers.

[0011] Furthermore, the detection unit uses the XKG-II-00 hydraulic forward-moving switch sensor as the detection device, and is divided into four groups, which are installed on the inner side of the rails close to the track on both sides of each level crossing.

[0012] Furthermore, the control unit uses a PLC controller as the core control device, and outputs signals to the alarm unit for control by using the PLC controller.

[0013] Furthermore, the audible and visual alarm device of the alarm unit is controlled by the output signal of the PLC controller, thereby ensuring the real-time performance and reliability of the control.

[0014] Furthermore, the alarm unit includes a highway signal, a level crossing signal, and a railway blocking signal, and specifically performs the following operations:

[0015] Highway signal controllers are used to receive output signals from PLC controllers, thereby controlling the traffic lights at level crossings to issue light alarms.

[0016] The level crossing signal controller is used to receive the output signal from the PLC controller, thereby controlling the level crossing sounder to emit an alarm sound.

[0017] Railway blocking signals are used to receive output signals from PLC controllers, thereby controlling the level crossing barriers to block the level crossing.

[0018] The level crossing signal lights include alarm lights, highway signal lights, and railway signal lights. The alarm lights have two red lights and flash once per second. The level crossing loudspeaker has a decibel level of 120-130 dB and stops playing the alarm sound when the alarm ends.

[0019] Furthermore, the monitoring unit consists of electronic police systems, surveillance cameras, a large monitoring screen, and a remote operation server, specifically:

[0020] Electronic police are monitoring and recording systems for traffic and road management, used to record vehicles passing through intersections, detect violations, conduct video surveillance, and collect road traffic parameters.

[0021] Surveillance cameras are used to monitor the status of on-site equipment and pedestrians and vehicles at level crossings, thereby ensuring the status of on-site equipment and ensuring that people and vehicles do not rush to cross the level crossing after an alarm is issued.

[0022] The monitoring screen is used to display information collected by electronic police and monitoring information from surveillance cameras, and has the function of triggering historical record playback.

[0023] The remote operation server is used to remotely operate the equipment based on the monitoring information from the surveillance cameras. If an abnormality is detected in the level crossing equipment, the remote operation server will issue a warning and pop up a dialog box to prompt the operator to report the problem. If there is an emergency involving personnel or vehicles on site, the operator can switch the control mode from automatic to manual to remotely control the operation of the level crossing equipment.

[0024] Furthermore, the surveillance camera's monitoring of pedestrians and vehicles at the crossing specifically includes:

[0025] Compare the first position of the moving targets of pedestrians and vehicles at the crossing in the video frame image monitored by the current surveillance camera with the second position in the previous video frame image;

[0026] If the first position of the center pixel of the moving target in the current video frame is different from the second position of the center pixel of the target in the previous video frame, it is determined that the position of the moving target in the monitoring area has changed, and video images of the moving target at the current position are captured for display on the monitoring screen.

[0027] Meanwhile, the real-time position of the center pixel of the moving target in the current frame image is used as the target center of the next frame video image, and the process is iterated to complete the tracking of the moving target;

[0028] Otherwise, it is determined that the position of the moving target within the monitored area has not changed, and the current video frame image is ignored until the alarm ends.

[0029] An alarm method for a dedicated automatic alarm system for railway crossings specifically includes the following steps:

[0030] S1: When trains approach the railway crossing from both sides, the proximity sensor is triggered, which causes the control unit to control the opening and closing of the crossing signal;

[0031] S2: The alarm unit makes relevant controls based on the signal from the control unit, immediately starts the level crossing horn to play the level crossing alarm, and the alarm light flashes red alternately, the highway signal light turns red, the railway signal light turns green, and the electronic police are activated.

[0032] S3: When the train approaches the level crossing and triggers the proximity sensor, the monitoring unit automatically switches the monitoring video to the current level crossing, reminding the remote operator to monitor the situation at the level crossing.

[0033] S4: Based on the video frames monitored by the surveillance cameras, determine whether pedestrians and vehicles are moving at the crossing, and ensure that no one or vehicle will attempt to cross the crossing after the alarm is issued.

[0034] Compared with the prior art, the beneficial effects of the present invention are:

[0035] 1. This invention uses a detection unit with sensors to detect the arrival and departure of locomotives and transmits the detected signals to the control unit, enabling the control unit to take corresponding control actions. The alarm unit uses proximity sensors to detect whether a locomotive is approaching a level crossing and immediately activates the level crossing horn to sound an alarm when the locomotive approaches. Simultaneously, the alarm lights flash red alternately, the highway signal lights turn red, and the railway signal lights turn green, thus alerting pedestrians and vehicles. By using sensors, the automatic level crossing control technology offers advantages such as precise alarm timing and the ability to adjust the alarm time according to actual transportation needs. Utilizing the traffic flow statistics function of electronic police systems, it monitors the traffic flow at railway level crossings in real time, automatically counting the number of various types of vehicles passing through at different times, and analyzing the traffic conditions at factory level crossings, providing accurate reference data for logistics scheduling and road condition optimization.

[0036] 2. The monitoring unit of this invention can monitor the status of on-site equipment and pedestrians and vehicles at the level crossing through a monitoring camera. When the on-site equipment malfunctions, the remote operation server issues a warning and pops up a dialog box to prompt the operator to report the problem, thereby ensuring the status of the on-site equipment. When the railway is running, the first position of the moving target of pedestrians and vehicles at the level crossing in the video frame image monitored by the current monitoring camera is compared with the second position in the previous video frame image to determine whether the position of the moving target in the monitoring area has changed, thereby preventing the phenomenon of people and vehicles rushing to cross the level crossing. In case of abnormality of on-site equipment or emergency on-site, the operator in the operation center can change the control status from automatic to manual and remotely control the operation of the level crossing equipment. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the system of the present invention;

[0038] Figure 2 This is a system configuration diagram of the present invention;

[0039] Figure 3 This is a system flowchart of the present invention. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] To address the issue of frequent incidents of people and vehicles rushing to cross unmanned railway crossings, posing certain safety hazards, please refer to [link / reference needed]. Figures 1-3 This embodiment provides the following technical solution:

[0042] A dedicated automatic alarm system for railway crossings includes:

[0043] The detection unit is used to detect the arrival and departure of locomotives and transmit the detection signals to the control unit so that the control unit can make corresponding control. The detection unit uses the XKG-II-00 hydraulic forward switch sensor as the detection device, and is divided into four groups with 3, 2, 2 and 3 of each group. They are installed on the inner side of the rails close to the track on both sides of each level crossing.

[0044] The control unit, using a PLC controller, is used to control the opening and closing of the level crossing signal, and simultaneously uploads the status of sensors, cables, and signal equipment to the monitoring unit in real time. The control unit uses a PLC controller as the core control device, and outputs signals to the alarm unit to control it. The audible and visual alarm devices of the alarm unit are controlled by the output signals of the PLC controller, thereby ensuring the real-time performance and reliability of the control.

[0045] The alarm unit is used to detect whether a locomotive is approaching a level crossing through a proximity sensor, and to immediately activate an audible and visual alarm device when the locomotive approaches the level crossing, thereby alerting pedestrians and vehicles.

[0046] The monitoring unit is equipped with the functions of storing data from on-site equipment at the level crossing and real-time images of the level crossing, monitoring the status of on-site equipment and pedestrians and vehicles at the level crossing, and playing back historical records of equipment triggers.

[0047] The technical effects of the above content are as follows: The detection unit and alarm unit use sensors to enable the automatic level crossing control technology to have accurate alarm timing, which can be adjusted according to the actual needs of transportation. In addition, the monitoring unit can use the traffic flow statistics function of the electronic police to monitor the traffic flow of railway level crossings in real time, automatically count the number of various types of vehicles passing through at different times, and analyze the traffic conditions of the factory area level crossings, which can provide accurate reference for logistics scheduling and road condition optimization.

[0048] The alarm unit includes highway signal lights, level crossing signal lights, and railway blocking signal lights, and specifically performs the following operations:

[0049] Highway signal controllers receive output signals from PLC controllers to control the level crossing lights to issue light alarms. Specifically, when trains approach the level crossing from either side, proximity sensors are triggered, and the level crossing lights issue a light alarm. At this time, the alarm light turns red and flashes alternately, the highway signal light turns red, the railway signal light turns green, and the electronic police system is activated. When a train is not passing through the level crossing, it approaches the level crossing and triggers the level crossing alarm bell. The alarm is immediately canceled after the train leaves in the opposite direction. When a train passes through the level crossing, after the train occupies and leaves the level crossing section, the railway blocking signals at both ends of the level crossing turn yellow, the level crossing signal lights stop alarming and turn white, the highway signal light turns green, and the automatic level crossing control system resets. This makes the level crossing signals more like highway signals, making them easy for pedestrians and drivers to understand.

[0050] The level crossing signal is used to receive the output signal of the PLC controller, thereby controlling the level crossing sounder to emit an alarm sound; specifically, when trains approach the level crossing from both sides, the proximity sensor will be triggered, and the level crossing sounder will immediately start playing the level crossing alarm bell.

[0051] Railway blocking signals are used to receive output signals from PLC controllers, thereby controlling the level crossing barriers to block the level crossing.

[0052] The level crossing signal lights include alarm lights, highway signal lights, and railway signal lights. The alarm lights have two red lights and flash once per second. The level crossing loudspeaker has a decibel level of 120-130 dB and stops playing the alarm sound when the alarm ends.

[0053] The technical effects of the above content are as follows: The alarm unit is mainly for the automatic control of level crossings. The automatic control method of level crossings is to realize the automatic control of equipment such as level crossing sounders, railway blocking signals, level crossing signal lights, and electronic police of monitoring units. When a train approaches the level crossing and triggers the proximity sensor, the level crossing alarm can be activated immediately. When the train occupies and leaves the level crossing, the level crossing alarm is automatically canceled. It can also identify and determine the direction of train operation. The alarm is triggered when the train approaches the level crossing and the alarm is canceled when the train leaves the level crossing. When two locomotives pass through multiple level crossings simultaneously or one after the other, the level crossing signal will be required to be open normally.

[0054] In this embodiment, there are two technical solutions: one for trains to pass normally through the level crossing, and another for trains to operate at the level crossing. Specifically:

[0055] Technical solution for trains passing through level crossings: Four sets of sensors are installed on the inner side of the rails close to the track on both sides of each level crossing. Each set contains three approach sensors and two arrival (departure) sensors. When a train approaches the level crossing and triggers approach sensor A (D), the system determines its direction of travel based on the order in which the three sensors are triggered (two out of three, within 2 seconds), and activates the audible and visual alarm and electronic police system. When a train triggers arrival sensor B (C), it indicates that the train is preparing to occupy the level crossing, and the system maintains the audible and visual alarm. When a train triggers departure sensor C (B), it indicates that the train is currently occupying the level crossing, and the system maintains the audible and visual alarm. At the same time, the arrival sensor B (C) counts down. If the sensor does not trigger for 8 consecutive seconds, the system considers that the train has completely passed through the level crossing, and the system deactivates the audible and visual alarm and resets.

[0056] Technical solution for train operation at level crossings: When a train approaches the level crossing and triggers proximity sensor A(D), its direction of travel is determined according to the order in which the three sensors are triggered (two out of three, within 2 seconds), and the system activates the audible and visual alarm and electronic police system; when the train triggers arrival sensor B(C), the system maintains the audible and visual alarm; if the proximity sensor receives a reverse signal (according to the order in which the three sensors are triggered within 2 seconds), it indicates that the train has left the level crossing, and the system deactivates the audible and visual alarm and resets.

[0057] The monitoring unit consists of electronic police systems, surveillance cameras, a large monitoring screen, and a remote operation server, specifically:

[0058] Electronic police are monitoring and recording systems for traffic and road management, used to record vehicles passing through intersections, detect violations, conduct video surveillance, and collect road traffic parameters.

[0059] Surveillance cameras are used to monitor the status of on-site equipment and pedestrians and vehicles at level crossings, thereby ensuring the status of on-site equipment and ensuring that people and vehicles do not rush to cross the level crossing after an alarm is issued.

[0060] The monitoring screen is used to display information collected by electronic police and monitoring information from surveillance cameras, and has the function of triggering historical record playback; at the same time, the monitoring screen has a picture-in-picture function, and the small screen can select any monitoring screen of the intersection.

[0061] The remote operation server is used to remotely operate the equipment based on the monitoring information from the surveillance cameras. If an abnormality is detected in the level crossing equipment, the remote operation server will issue a warning and pop up a dialog box to prompt the operator to report the problem. If there is an emergency involving personnel or vehicles on site, the operator can switch the control mode from automatic to manual to remotely control the operation of the level crossing equipment.

[0062] The surveillance cameras monitor pedestrians and vehicles at the crossing, specifically as follows:

[0063] Compare the first position of the moving targets of pedestrians and vehicles at the crossing in the video frame image monitored by the current surveillance camera with the second position in the previous video frame image;

[0064] If the first position of the center pixel of the moving target in the current video frame is different from the second position of the center pixel of the target in the previous video frame, it is determined that the position of the moving target in the monitoring area has changed, and video images of the moving target at the current position are captured for display on the monitoring screen.

[0065] Meanwhile, the real-time position of the center pixel of the moving target in the current frame image is used as the target center of the next frame video image, and the process is iterated to complete the tracking of the moving target;

[0066] Otherwise, it is determined that the position of the moving target within the monitored area has not changed, and the current video frame image is ignored until the alarm ends.

[0067] The technical effects of the above are as follows: Electronic police systems can capture red-light violations and upload the images to the crossing monitoring server. This allows for the collection of vehicle passage records, violation detection, video surveillance, and road traffic parameters. The monitoring cameras can monitor the status of on-site equipment and pedestrians and vehicles at the crossing. The equipment detection and alarm functions ensure that when equipment malfunctions, the yellow light on the highway traffic light flashes, the remote operation server issues a warning, and a dialog box pops up to prompt the operator, allowing the operator to promptly report the malfunction. Furthermore, by monitoring pedestrians and vehicles at the crossing, the system can compare the first position of moving targets in the current video frame monitored by the camera with the previous video frame. The system compares the second position in the image to determine whether the position of the moving target within the monitoring area has changed. If the first position of the target center pixel in the current video frame is different from the second position of the target center pixel in the previous video frame, it can be determined that the current pedestrian or vehicle has changed. The system then captures video images of the moving target at the current position and displays them on the monitoring screen so that operators can take timely measures. This can prevent people and vehicles from rushing across the crossing, reducing safety hazards at the crossing. Moreover, when the on-site equipment malfunctions or there is an emergency, the operators at the control center can switch the control mode from automatic to manual to remotely control the operation of the crossing equipment.

[0068] Specifically, this embodiment also proposes an alarm method for a dedicated railway crossing automatic alarm system, which includes the following steps:

[0069] S1: When trains approach the railway crossing from both sides, the proximity sensor is triggered, which causes the control unit to control the opening and closing of the crossing signal;

[0070] S2: The alarm unit makes relevant controls based on the signal from the control unit, immediately starts the level crossing horn to play the level crossing alarm, and the alarm light flashes red alternately, the highway signal light turns red, the railway signal light turns green, and the electronic police are activated.

[0071] S3: When the train approaches the level crossing and triggers the proximity sensor, the monitoring unit automatically switches the monitoring video to the current level crossing, reminding the remote operator to monitor the situation at the level crossing.

[0072] S4: Based on the video frames monitored by the surveillance cameras, determine whether pedestrians and vehicles are moving at the crossing, and ensure that no one or vehicle will attempt to cross the crossing after the alarm is issued.

[0073] Working Principle: The detection unit uses sensors to detect the arrival and departure of locomotives and transmits the signals to the control unit, which then takes appropriate control measures. The alarm unit uses proximity sensors to detect whether a locomotive is approaching the level crossing and issues an audible and visual alarm when the locomotive approaches, thus alerting pedestrians and vehicles. The use of sensors in this automatic level crossing control technology provides advantages such as precise alarm timing and the ability to adjust the alarm time according to actual transportation needs. Furthermore, the monitoring unit utilizes the traffic flow statistics function of electronic police systems to monitor the traffic flow at railway level crossings in real time, automatically calculating the number of various types of vehicles passing through at different times and analyzing traffic conditions at the crossings within the factory area. The monitoring system can provide accurate reference data for logistics scheduling and road condition optimization. Moreover, the monitoring unit can monitor the status of on-site equipment and pedestrians and vehicles at the level crossing through monitoring cameras. When on-site equipment malfunctions, it can issue warnings to operators and pop up dialog boxes to request repairs. During railway operation, by monitoring pedestrians and vehicles at the level crossing, it can determine whether the position of moving targets in the monitored area has changed, and take corresponding reminder and warning measures to avoid people and vehicles rushing to cross the level crossing. Furthermore, when on-site equipment malfunctions or there is an emergency, the operators in the operation center can switch the control mode from automatic to manual to remotely control the operation of the level crossing equipment.

[0074] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0075] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dedicated automatic alarm system for railway crossings, characterized in that: include: The detection unit is used to detect the arrival and departure of the locomotive and transmit the detected signals to the control unit so that the control unit can make corresponding control. The control unit, which uses a PLC controller, is used to control the opening and closing of the level crossing signal, and simultaneously uploads the status of the sensors, cables and signal equipment to the monitoring unit in real time. The alarm unit is used to detect whether a locomotive is approaching a level crossing through a proximity sensor, and to immediately activate an audible and visual alarm device when the locomotive approaches the level crossing, thereby alerting pedestrians and vehicles. The audible and visual alarm device of the alarm unit is controlled by the output signal of a PLC controller. The monitoring unit has the functions of storing data and real-time images of the crossing equipment, monitoring the status of the equipment and pedestrians and vehicles at the crossing, and playing back historical records of equipment triggers. The monitoring unit consists of electronic police systems, surveillance cameras, a large monitoring screen, and a remote operation server, specifically: Electronic police are monitoring and recording systems for traffic and road management, used to record vehicles passing through intersections, detect violations, conduct video surveillance, and collect road traffic parameters. Surveillance cameras are used to monitor the status of on-site equipment and pedestrians and vehicles at level crossings, thereby ensuring the status of on-site equipment and ensuring that people and vehicles do not rush to cross the level crossing after an alarm is issued. The monitoring screen is used to display information collected by electronic police and monitoring information from surveillance cameras, and has the function of triggering historical record playback. The remote operation server is used to remotely operate the equipment based on the monitoring information from the surveillance cameras. If an abnormality is detected in the status of the level crossing equipment, the remote operation server will issue a warning and pop up a dialog box to prompt the operator to report the problem. If there is an emergency involving personnel and vehicles on site, the operator can switch the control status from automatic to manual to remotely control the operation of the level crossing equipment. The surveillance cameras monitor pedestrians and vehicles at the crossing, specifically as follows: Compare the first position of the moving targets of pedestrians and vehicles at the crossing in the video frame image monitored by the current surveillance camera with the second position in the previous video frame image; If the first position of the center pixel of the moving target in the current video frame is different from the second position of the center pixel of the target in the previous video frame, it is determined that the position of the moving target in the monitoring area has changed, and video images of the moving target at the current position are captured for display on the monitoring screen. Meanwhile, the real-time position of the center pixel of the moving target in the current video frame is used as the target center of the next video frame, and the process is iterated to complete the tracking of the moving target; Otherwise, it is determined that the position of the moving target within the monitoring area has not changed, and the current video frame image is ignored until the moving target leaves the monitoring area.

2. The dedicated railway crossing automatic alarm system according to claim 1, characterized in that: The alarm unit includes highway signal controllers, level crossing signal controllers, and railway blocking signal controllers, and specifically performs the following operations: Highway signal controllers are used to receive output signals from PLC controllers, thereby controlling the traffic lights at level crossings to issue light alarms. The level crossing signal controller is used to receive the output signal from the PLC controller, thereby controlling the level crossing sounder to emit an alarm sound. Railway blocking signals are used to receive output signals from PLC controllers, thereby controlling the level crossing barriers to block the level crossing. The level crossing signal lights include alarm lights, highway signal lights, and railway signal lights. The alarm lights have two red lights and flash once per second. The level crossing loudspeaker has a decibel level of 120-130 dB and stops playing the alarm sound when the alarm ends.

3. An alarm method for a dedicated railway crossing automatic alarm system as described in claim 2, characterized in that: Specifically, the following steps are included: S1: When locomotives on both sides of a railway crossing approach the crossing, the proximity sensor is triggered, causing the control unit to control the opening and closing of the crossing signal; S2: The alarm unit makes relevant controls based on the signal from the control unit, immediately starts the level crossing horn to play the level crossing alarm, and the alarm light flashes red alternately, the highway signal light turns red, the railway signal light turns green, and the electronic police are activated. S3: When the locomotive approaches the level crossing and triggers the proximity sensor, the monitoring unit automatically switches the monitoring video to the current level crossing, reminding the remote operator to monitor the situation at the level crossing. S4: Based on the video frames monitored by the surveillance cameras, determine whether pedestrians and vehicles are moving at the crossing, and ensure that no one or vehicle will attempt to cross the crossing after the alarm is issued.

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