Early warning system for unattended crossing of railway

Abstract

The utility model provides an early warning system for an unattended crossing of a railway. The early warning system for the unattended crossing of the railway comprises video acquisition equipment, sensing equipment, terminal equipment, service equipment and early warning equipment, the video acquisition equipment is connected with the terminal equipment through the service equipment; the video acquisition device monitors the unattended railway crossing and obtains and sends crossing monitoring data to the service device, and the terminal device receives the crossing monitoring data sent by the service device and visually displays the crossing monitoring data; the sensing equipment is connected with the early warning equipment through the service equipment; the sensing device detects the passing condition of a train at the unattended railway crossing and obtains and sends crossing occupation data to the service device, the service device outputs an early warning attribute signal to the early warning device based on the crossing occupation data, and the early warning device switches the running state of the early warning device to an early warning state according to the early warning attribute signal.

Description

Technical Field

[0001] The utility model relates to the technical field of intelligent transportation, in particular to an early warning system for an unattended railway crossing. Background Art

[0002] Railway is a transportation system composed of tracks and trains, which is an important part of China's transportation system and undertakes the important transportation task of connecting various regions. It is usually used for long-distance large-scale passenger and freight transportation. Railway lines are the specific transportation paths in the railway system. Based on considerations such as geographical conditions and construction costs, railway lines and roads often have intersections to meet their respective traffic needs. The intersection of a railway line and a road is a railway-highway level crossing. In some remote areas or on railway lines mainly used for freight transportation, railway-highway level crossings are often set as unattended crossings to reduce labor costs and construction costs. Although the existence of unattended crossings is reasonable, their safety issues cannot be ignored.

[0003] Existing unattended crossings only set safety signs. When a train driver passes through a crossing, they usually slow down and strengthen the lookout at the crossing to ensure a smooth passage. Due to reasons such as blocked vision and misjudgment, motor vehicles and pedestrians frequently cause trains to slow down, stop, and collision accidents, seriously threatening railway transportation safety and the life and property safety of pedestrians. Summary of the Utility Model

[0004] The utility model provides an early warning system for an unattended railway crossing, which can realize the comprehensive monitoring of an unattended railway crossing and the timely early warning of potential dangers, and improve the safety of railway transportation.

[0005] According to one aspect of the utility model, there is provided an early warning system for an unattended railway crossing. The early warning system for the unattended railway crossing includes: a video acquisition device, a sensing device, a terminal device, a service device, and an early warning device. The video acquisition device is connected to the terminal device through the service device. The video acquisition device monitors the unattended railway crossing, obtains and sends crossing monitoring data to the service device. The terminal device receives the crossing monitoring data sent by the service device and visually displays the crossing monitoring data. The sensing device is connected to the early warning device through the service device. The sensing device detects the passing situation of trains at the unattended railway crossing, obtains and sends crossing occupancy data to the service device. The service device outputs an early warning attribute signal to the early warning device based on the crossing occupancy data. The early warning device switches its own operating state to the early warning state according to the early warning attribute signal.

[0006] In an alternative embodiment, the service device includes an edge server and a central server. The central server is communicatively connected to the edge server and the terminal device respectively. The edge server is further connected to the video capture device. The edge server receives the crossing monitoring data sent by the video capture device, and sends the crossing monitoring data to the central server. The central server transmits the crossing monitoring data to the terminal device. The edge server is communicatively connected to the sensing device and is further connected to the warning device. The edge server receives the crossing occupancy data sent by the sensing device, and outputs a warning attribute signal including a position display signal, a visual prompt signal, and a voice prompt signal to the warning device based on the crossing occupancy data.

[0007] In an alternative embodiment, the terminal device includes a locomotive end. The locomotive end is communicatively connected to the central server. The central server sends the crossing monitoring data to the locomotive end. The locomotive end receives the crossing monitoring data and visually displays it to prompt the current traffic state to the driver.

[0008] In an alternative embodiment, the terminal device further includes a command end. The command end is communicatively connected to the central server. The central server further obtains the real-time positioning data of the train, and sends the crossing monitoring data and the real-time positioning data to the command end. The command end visually displays the crossing monitoring data and the real-time positioning data to prompt the current passing state to the duty personnel.

[0009] In an alternative embodiment, the warning device includes an electronic screen. The electronic screen is connected to the edge server. The edge server outputs the position display signal to the electronic screen. The electronic screen displays the passing prompt data and the passing distance data based on the position display signal to switch its own operating state to the warning state.

[0010] In an alternative embodiment, the warning device further includes a signal light. The signal light is connected to the edge server. The edge server outputs the visual prompt signal to the signal light. The signal light switches its visual color from yellow to red based on the visual prompt signal to switch its own operating state to the warning state.

[0011] In an alternative embodiment, the warning device further includes a sound column. The sound column is connected to the edge server. The edge server outputs the voice prompt signal to the sound column. The sound column starts a voice prompt based on the voice prompt signal to switch its own operating state to the warning state.

[0012] In an alternative manner, both the sensing device and the warning device are deployed on poles.

[0013] In an alternative manner, the warning system for an unattended railway crossing further includes: a solar panel, which is respectively connected to the sensing device and the warning device.

[0014] In an alternative manner, the sensing device includes a detection radar and a control box. The control box is respectively connected to the detection radar and the solar panel, and the control box is also communicatively connected to the edge server for controlling the working state of the detection radar.

[0015] Different from the prior art, the present utility model provides a warning system for an unattended railway crossing, which includes: a video acquisition device, a sensing device, a terminal device, a service device and a warning device; the video acquisition device is connected to the terminal device through the service device; the video acquisition device monitors the unattended railway crossing, obtains and sends the crossing monitoring data to the service device, and the terminal device receives the crossing monitoring data sent by the service device and visually displays the crossing monitoring data; the sensing device is connected to the warning device through the service device; the sensing device detects the passing situation of trains at the unattended railway crossing, obtains and sends the crossing occupancy data to the service device, the service device outputs a warning attribute signal to the warning device based on the crossing occupancy data, and the warning device switches its own operating state to the warning state according to the warning attribute signal. In the warning system for an unattended railway crossing provided by the present utility model, each device realizes the mutual cooperation between devices through the above connection method, realizes the comprehensive monitoring of the unattended railway crossing and the timely warning of potential dangers, reduces the probability of collision accidents between trains and vehicles or pedestrians, and improves the safety of railway transportation. Description of the Drawings

[0016] Figure 1 is a structural block diagram of a warning system for an unattended railway crossing provided by an embodiment of the present utility model;

[0017] Figure 2 is a structural schematic diagram of each device in a warning system for an unattended railway crossing provided by an embodiment of the present utility model;

[0018] Figure 3 is a schematic diagram of a sensing device provided by an embodiment of the present utility model;

[0019] Figure 4 is a schematic diagram of a warning device provided by an embodiment of the present utility model. Detailed implementation manners

[0020] The present utility model will be described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present utility model, but do not limit the present utility model in any form. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can be made. These all belong to the protection scope of the present utility model.

[0021] To facilitate the understanding of the present utility model, the present utility model will be described in more detail below in conjunction with the accompanying drawings and specific embodiments. Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by those skilled in the technical field to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not used to limit this application. When an element is expressed as "connected" to another element, it can be directly connected to the other element, or there can be one or more intermediate elements therebetween.

[0022] Please refer to Figure 1 , Figure 1 which is a structural block diagram of an early warning system for an unattended railway crossing provided by an embodiment of the present utility model.

[0023] The early warning system 1 for an unattended railway crossing includes: a video acquisition device 11, a sensing device 12, a terminal device 13, a service device 14, and an early warning device 15.

[0024] Among them, the early warning system 1 for an unattended railway crossing represents a system for monitoring and warning the safety of an unattended railway crossing. For the convenience of description, the unattended railway crossing in the present utility model can be abbreviated as a crossing; the video acquisition device 11 represents a camera or other video capture device installed near the unattended railway crossing, which can monitor the traffic status of the crossing in real time, such as the passing of vehicles or pedestrians, etc. The specific installation position of the video acquisition device 11 can be set according to the actual situation, and the present utility model does not make specific limitations on this; the sensing device 12 is installed on one side of the track and can detect and sense whether a train passes through the crossing; the terminal device 13 represents devices installed on the train and the railway control center, which directly interact with the drivers on the train and the duty personnel in the railway control center; the service device 14 is a key component in the early warning system 1 for an unattended railway crossing, responsible for data processing, device control, communication transmission, etc.; the early warning device 15 represents a prompting device installed at the unattended railway crossing, which can emit a warning signal when a train approaches the crossing, prompting the vehicles and pedestrians around the crossing to avoid, and ensuring the safety of crossing traffic.

[0025] The video acquisition device 11 is connected to the terminal device 13 through the service device 14.

[0026] The video acquisition device 11 monitors the unattended railway crossing, obtains and sends the crossing monitoring data to the service device 14. The terminal device 13 receives the crossing monitoring data sent by the service device 14 and visually displays the crossing monitoring data.

[0027] Among them, monitoring means the process in which the video acquisition device 11 continuously collects data on the unattended railway crossing; the crossing monitoring data means the video image data of the unattended railway crossing collected by the video acquisition device 11; visual display means the real-time display of the video image data on the terminal device 13 through a video interface to intuitively display the actual situation of the unattended railway crossing.

[0028] Specifically, based on the connection between the video acquisition device 11 and the terminal device 13 through the service device 14, the video acquisition device 11 (camera or other video capture device) can capture the real-time video images of the unattended railway crossing and its surrounding environment, generate the crossing monitoring data, and push it dynamically as needed. For example, when the terminal device 13 requests to obtain data, the video acquisition device 11 pushes the crossing monitoring data to the terminal device 13, and the terminal device 13 live-displays the real-time video of the crossing according to the received crossing monitoring data.

[0029] It should be noted that during certain periods or in specific situations, the terminal device 13 may have a relatively low demand for video monitoring of the crossing. Therefore, the video acquisition device 11 does not continuously transmit the crossing monitoring data, but pushes it dynamically according to the demand, saving broadband and storage resources.

[0030] The sensing device 12 is connected to the warning device 15 through the service device 14.

[0031] The sensing device 12 detects the passing of trains at the unattended railway crossing, obtains and sends the crossing occupancy data to the service device 14. The service device 14 outputs a warning attribute signal to the warning device 15 based on the crossing occupancy data, and the warning device 15 switches its own operating state to the warning state according to the warning attribute signal.

[0032] Among them, the passing situation of the train includes relevant data such as the running state and appearance characteristics of the train; the crossing occupancy data collected by the sensing device 12 reflects the detailed information when the train passes through the unattended railway crossing, including but not limited to the running speed, running direction, and train type of the train; the warning attribute signal represents the signal used to trigger the warning device 15; the running state represents the current working mode of the warning device 15, specifically including the normal state, warning state, and fault state; the warning state represents the working state in which the warning device 15 emits warning signals, which can warn the drivers of motor vehicles and surrounding pedestrians to pay attention to the safety of the crossing.

[0033] Specifically, when the sensing device 12 detects the approach of a train, it identifies and records the relevant data of the train as crossing occupancy data, and sends the crossing occupancy data to the service device 14. The service device 14 immediately sends a trigger signal (warning attribute signal) to the warning devices 15 on both sides of the crossing according to the received crossing occupancy data. After receiving the trigger signal (warning attribute signal), the warning device 15 starts various warning operations to prompt the traffic participants at the crossing to pay attention to the approaching train.

[0034] It should be noted that based on the connection between the sensing device 12 and the warning device 15 through the service device 14, the warning device 15 can perform warning operations when the train approaches the unattended railway crossing, ensuring that at the unattended railway crossing, the drivers and pedestrians of motor vehicles can obtain the crossing status information in a timely and accurate manner and pass through the unattended railway crossing safely.

[0035] In the warning system of the unattended railway crossing, each device realizes the mutual cooperation between devices through the above connection method, realizes the comprehensive monitoring of the unattended railway crossing and the timely warning of potential dangers, reduces the probability of collision accidents between trains and vehicles or pedestrians, and improves the safety of railway transportation.

[0036] In one implementation, the service device 14 includes: an edge server and a central server.

[0037] Please refer to Figure 2 , Figure 2 which is a schematic structural diagram of each device in a warning system for an unattended railway crossing provided by an embodiment of the present invention.

[0038] Among them, the edge server represents an independent device close to on-site devices (such as the video acquisition device 11, the sensing device 12, and the warning device 15). An edge server is installed at each unattended railway crossing, responsible for device control, data processing, and communication transmission; the central server is the core center of the entire system, and can be responsible for data processing and storage, unified control and management of devices.

[0039] The central server is respectively communicatively connected to the edge server and the terminal device 13, and the edge server is also connected to the video acquisition device 11.

[0040] The edge server receives the crossing monitoring data sent by the video acquisition device 11, sends the crossing monitoring data to the central server, and the central server transmits the crossing monitoring data to the terminal device 13.

[0041] The edge server is communicatively connected to the sensing device 12, and the edge server is also connected to the warning device 15.

[0042] The edge server receives the crossing occupancy data sent by the sensing device 12, and outputs a warning attribute signal to the warning device 15 based on the crossing occupancy data. The warning attribute signal includes a position display signal, a visual prompt signal, and a voice prompt signal.

[0043] Among them, the edge server and the central server can communicate using a 4G / 5G transmission method. The position display signal is a signal used to display train position information on an electronic screen, reminding vehicles and pedestrians near the crossing of the specific position and approaching situation of the train; the visual prompt signal is a visual warning signal emitted by a signal lamp, which can remind vehicles and pedestrians near the crossing to pay attention to the approach of the train; the voice prompt signal is a voice warning signal emitted by a sound column, which is used to remind vehicles and pedestrians near the crossing that the train is about to pass.

[0044] Specifically, based on the edge server being communicatively connected to the sensing device 12 and the edge server being connected to the warning device 15, the edge server can quickly process the data from the sensing device 12, that is, quickly process the crossing occupancy data, and then output a warning attribute signal according to the crossing occupancy data; based on the edge server being connected to the video acquisition device 11 and the edge server being communicatively connected to the central server, the edge server can receive the crossing monitoring data obtained by the video acquisition device 11, transmit the crossing monitoring data to the central server, and can also receive control instructions from the central server; based on the edge server being connected to the warning device 15 and the edge server being communicatively connected to the central server, the edge server can output a warning attribute signal to directly control the on-site warning device 15, ensuring that the warning device 15 can timely switch the operating state according to the actual situation, and can also uniformly control the device according to the control instructions received from the central server. Based on the edge server being respectively connected to the warning device 15 and the video acquisition device 11, the central server being respectively communicatively connected to the terminal device 13 and the edge server, and the edge server being communicatively connected to the sensing device 12, the terminal device 13 can issue a control instruction to the edge server through the central server, and the edge server receives and executes the control instruction, realizing the unified management and coordination of on-site devices, and ensuring that the operating states and data of each on-site device are synchronized and consistent.

[0045] It should be noted that the edge server is located at the crossing site, which can quickly respond to on-site devices, reduce latency, and ensure timely warnings and prompts; the central server has powerful data storage and processing capabilities and can process and store a large amount of data.

[0046] In one implementation, the terminal device 13 includes: a locomotive end, and the locomotive end is communicatively connected to the central server.

[0047] The central server sends the crossing monitoring data to the locomotive end, and the locomotive end receives the crossing monitoring data and visually displays the crossing monitoring data to prompt the current traffic status to the driver.

[0048] Among them, the locomotive end refers to the monitoring and communication equipment installed in the train cab, and this equipment is equipped with a display; the current traffic status refers to the real-time traffic conditions when the train is about to pass through the crossing; the driver refers to the driver operating the train.

[0049] Specifically, the locomotive end is connected to the central server, can receive the crossing monitoring data to display the monitoring video in real time through the display, and the locomotive end is also provided with a GPS or Beidou positioning system to collect the train running speed and position data in real time. The locomotive end and the central server communicate specifically using a 4G / 5G transmission method.

[0050] It should be noted that the locomotive end is installed in the train cab for the convenience of the driver to operate and view. Since the locomotive end is connected to the central server, and the central server is connected to the video acquisition device 11 through the edge server, the driver can view the monitoring video of the crossing in real time through the locomotive end, know the current traffic status of the crossing according to the monitoring video, predict the safety situation of the crossing according to the current traffic status, take necessary deceleration or other countermeasures in advance, avoid potential traffic accidents, and improve the safety of railway transportation.

[0051] In one implementation, the terminal device 13 further includes: a command end, and the command end is communicatively connected to the central server.

[0052] The central server also obtains the real-time positioning data of the train, sends the crossing monitoring data and the real-time positioning data to the command end, and the command end visually displays the crossing monitoring data and the real-time positioning data to prompt the current passing status to the duty personnel.

[0053] Among them, the command terminal refers to the monitoring and communication equipment installed in the railway control center or dispatching room, which is equipped with a display; the real-time positioning data represents the real-time position information of the train, including the train speed, direction, etc.; the current passing state represents the real-time operating condition of the train when passing through the crossing; the duty personnel refer to the operators working in the railway control center or dispatching room, who are responsible for monitoring the operation of the train and intervening and handling in case of emergencies. The command terminal can send control instructions to the edge server through the central server to achieve unified control of on-site equipment. The command terminal and the central server communicate specifically by 4G / 5G transmission mode or wired communication, which can be selected according to actual needs.

[0054] Specifically, the command terminal is connected to the central server, can receive crossing monitoring data and real-time positioning data, and display them in real time through the display, that is, display the monitoring video of the crossing and the position information of the train in real time.

[0055] It should be noted that based on the central server being respectively communicatively connected to the locomotive terminal and the edge server, the locomotive terminal can collect the train operation speed and position data in real time through the GPS or Beidou positioning system, send the train operation speed and position data to the central server, and push them to the edge server through the central server for processing to obtain real-time positioning data. The edge server transmits the real-time positioning data to the central server, enabling the central server to obtain the real-time positioning data. The central server receives the real-time positioning data and the crossing monitoring data, and sends them to the command terminal for display, so that the duty personnel can timely understand the current passing state through the monitoring video of the crossing and the position information of the train, and make dispatching decisions according to the passing state to ensure the safety of railway transportation.

[0056] In one implementation, the warning device 15 includes: an electronic screen, and the electronic screen is connected to the edge server.

[0057] The edge server outputs a position display signal to the electronic screen, and the electronic screen displays the passing prompt data and the passing distance data based on the position display signal to switch its own operating state to the warning state.

[0058] Among them, the electronic screen is an information display device; the passing prompt data is the prompt information displayed on the electronic screen, informing vehicles and pedestrians about the situation that a train is about to pass through the crossing; the passing distance data represents the real-time distance information of the train from the crossing displayed on the electronic screen.

[0059] Specifically, the position display signal includes passing prompt data and passing distance data. The passing prompt data can specifically be a warning message for the approaching train, such as "The train is about to pass, please pay attention to safety", and the passing distance data can specifically be the real-time distance information of the train from the crossing, such as "The train is 200 meters away from the crossing". In the daily mode, the electronic screen displays conventional safety prompt text, and in the warning mode, the electronic screen displays the passing prompt data and the passing distance data.

[0060] In some other embodiments, the electronic screen also displays a countdown to indicate the remaining time for the train to reach the unmanned railway crossing.

[0061] It should be noted that based on the connection between the display screen and the edge server, the display screen can display the passing prompt data and the passing distance data to provide accurate train distance information for the vehicles and pedestrians at the crossing, helping the vehicles and pedestrians better judge whether they can safely pass the crossing.

[0062] In one implementation, the warning device 15 further includes: a signal lamp, which is connected to the edge server.

[0063] The edge server outputs a visual prompt signal to the signal lamp, and the signal lamp switches the visual color from yellow to red based on the visual prompt signal to switch its own operating state to the warning state.

[0064] Among them, the signal lamp is a visual prompt device that displays different light colors by receiving a visual prompt signal from the edge server; the visual color is the light color displayed by the signal lamp, which is used to indicate the passing state of the crossing; yellow is a visual prompt color of the signal lamp, indicating that vehicles and pedestrians can still pass; red is a visual prompt color of the signal lamp, indicating no passage.

[0065] Specifically, when the train is about to pass the crossing, the warning state of the signal lamp is activated, and the red light is always on, indicating that the crossing is closed to traffic, and motor vehicles and pedestrians need to stop and wait to ensure safety; after the train safely passes the crossing, the warning state of the signal lamp is turned off, and the yellow light flashes, indicating that the crossing is in a normal state, and motor vehicles and pedestrians can pass.

[0066] Based on the connection between the signal lamp and the edge server, the signal lamp can achieve color indication and switching, clearly indicating to motor vehicles and pedestrians whether the crossing can be passed.

[0067] In one implementation, the warning device 15 further includes: a sound column, which is connected to the edge server.

[0068] The edge server outputs a voice prompt signal to the sound column, and the sound column starts a voice prompt based on the voice prompt signal to switch its own operating state to the warning state.

[0069] Among them, the sound column is a sound playback device that receives voice prompt signals through an edge server and plays preset voice warning messages according to the voice prompt signals to achieve the activation of voice prompts.

[0070] Specifically, when receiving a voice prompt signal, the sound column activates the voice prompt to remind the people near the crossing to pay attention to safety, such as voice warning messages like "A train is about to pass, please pay attention to safety". After the train passes safely, the sound column stops playing the voice warning message and resumes the mute state, indicating that the crossing is safe and normal passage is allowed.

[0071] It should be noted that based on the connection between the sound column and the edge server, the sound column can add an additional layer of auditory reminder in addition to the visual reminder through the playback of voice warning messages, which helps to improve the safety awareness of passers-by and plays an important role especially when the line of sight of passers-by is blocked.

[0072] When a train approaches the crossing, a warning is activated. Through real-time video monitoring and various warning means, the safe passage of the crossing is ensured, avoiding accidents caused by blocked line of sight and misjudgment. At the same time, the command end of the duty center can grasp and handle the situation of the crossing in real time to ensure timely response in case of emergencies.

[0073] In one implementation, both the sensing device 12 and the warning device 15 are deployed on poles.

[0074] Among them, pole deployment represents a physical installation method, indicating that the device is installed on a pole.

[0075] It should be noted that installing the sensing device 12 on a pole can increase its detection range, and installing the warning device 15 on a pole can improve the warning effect.

[0076] In one embodiment, the warning system 1 of the unmanned railway crossing further includes: a solar panel, and the solar panel is respectively connected to the sensing device 12 and the warning device 15.

[0077] Among them, the solar panel is a device that converts solar energy into electrical energy. Based on the connection of the solar panel to the sensing device 12 and the warning device 15 respectively, the solar panel can provide power supply for the sensing device 12 and the warning device 15.

[0078] In some other embodiments, devices in the warning system such as the sensing device 12 and the warning device 15 can be powered by mains electricity.

[0079] It should be noted that solar panel power supply is especially suitable for remote areas or areas with unstable power grids, which not only reduces the dependence on traditional electricity but also reduces the operating cost and maintenance frequency.

[0080] Please refer toFigure 3 , Figure 3 is a schematic diagram of a sensing device provided by an embodiment of the present utility model. The sensing device 12 is deployed by a vertical pole and includes a detection radar and a control box. The control box is respectively connected to the detection radar and the solar panel, and the control box is also communicatively connected to the edge server for controlling the working state of the detection radar.

[0081] Among them, the detection radar represents a sensor device that can detect and sense changes in the surrounding environment; the control box includes a controller and communication equipment, which can receive control instructions sent by the edge server and control the working mode, working parameters, etc. of the detection radar based on the control instructions. The control box also receives the crossing occupancy data obtained by the detection radar and sends the crossing occupancy data to the edge server for processing through the communication equipment; the working mode, working parameters, etc. of the detection radar are the working state of the detection radar.

[0082] The control box can control whether the solar panel supplies power to the detection radar according to the control instructions sent by the edge server. If the solar panel supplies power to the detection radar, the detection radar starts to work. If the solar panel does not supply power to the detection radar, the detection radar stops working.

[0083] Specifically, the detection radar installed beside the track can detect the approach of a train through microwave detection technology. When the train enters the radar detection range, the detection radar can distinguish the passing of the train through the cross-sectional area, running speed and direction of the train, effectively preventing false alarms caused by other interfering targets. The detection radar will identify and record the relevant data of the train (crossing occupancy data) and send the crossing occupancy data to the edge server for processing through the communication equipment. The communication equipment and the edge server can communicate using LoRa technology.

[0084] In this embodiment, based on the central server being communicatively connected to the locomotive end and the edge server respectively, and the edge server being communicatively connected to the detection radar, the edge server is also connected to the warning device 15 and the video acquisition device 11 respectively. The central server can receive the crossing occupancy data (train running speed) detected by the detection radar through the edge server, and receive the locomotive position information collected by the locomotive end. The central server can analyze the crossing occupancy data (train running speed) and the locomotive position information in combination with the pre-input crossing characteristics, safety requirements, etc., obtain a preset distance threshold (the preset distance between the train and the crossing), determine a preset position based on the preset distance threshold, and use whether the train reaches the preset position as a benchmark to judge whether to trigger the monitoring and warning operations. When the train enters the radar detection range and reaches the preset position, it is determined that the train is approaching the crossing, and a control instruction is sent to the edge server to enable the edge server to control the on-site equipment and implement the monitoring and warning operations. Among them, the speed of the train affects the time to reach the crossing, so the preset position can be adjusted according to the current driving speed of the train.

[0085] It should be noted that the detection radar is installed on a pole, which can obtain a wider detection range, reduce blind spots, and ensure accurate perception when the train approaches.

[0086] Please refer to Figure 4 , Figure 4 which is a schematic diagram of a warning device provided by an embodiment of the present invention. The warning device 15 is deployed using a pole and includes an electronic screen, a signal lamp, and a sound column. The edge server outputs a warning attribute signal according to this data, notifying the warning device 15 such as the display screen, the signal lamp, and the sound column to start the warning mode, that is, to switch the operating state to the warning state to prompt the traffic participants at the crossing to pay attention to the approaching train.

[0087] It should be noted that the warning devices 15 such as the display screen, the signal lamp, and the sound column at the crossing are in the warning state all the time during the passing of the train to ensure the safe passage of the crossing. The warning devices 15 such as the signal lamp and the sound column are installed on the pole, which can make it easier for the traffic participants at the crossing to see and hear the warning signal and improve the safety of crossing passage.

[0088] In this embodiment, the video acquisition device 11 is specifically a camera, which is also installed on the pole where the warning device 15 is located. In some other embodiments, the video acquisition device 11 can be installed on an independent pole or other positions with excellent visibility.

[0089] In this embodiment, an early warning system for an unattended railway crossing is provided. The early warning system for the unattended railway crossing includes: a video acquisition device, a sensing device, a terminal device, a service device, and an early warning device; the video acquisition device is connected to the terminal device through the service device; the video acquisition device monitors the unattended railway crossing, obtains and sends the crossing monitoring data to the service device, and the terminal device receives the crossing monitoring data sent by the service device and visually displays the crossing monitoring data; the sensing device is connected to the early warning device through the service device; the sensing device detects the passing situation of trains at the unattended railway crossing, obtains and sends the crossing occupancy data to the service device, the service device outputs an early warning attribute signal to the early warning device based on the crossing occupancy data, and the early warning device switches its own operating state to the early warning state according to the early warning attribute signal. In the early warning system for the unattended railway crossing provided by the present invention, each device realizes the mutual cooperation among the devices through the above connection method, realizes the comprehensive monitoring of the unattended railway crossing and the timely early warning of potential dangers, reduces the probability of collision accidents between trains and vehicles or pedestrians, and improves the safety of railway transportation.

[0090] It should be noted that the description and drawings of the present invention give preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. These embodiments are not additional limitations to the content of the present invention. The purpose of providing these embodiments is to make the understanding of the disclosed content of the present invention more thorough and comprehensive. Moreover, the above technical features continue to be combined with each other to form various embodiments not listed above, which are all regarded as the scope described in the description of the present invention; further, for those of ordinary skill in the art, improvements or changes can be made according to the above description, and all such improvements and changes should fall within the protection scope of the appended claims of the present invention.

Claims

1. An early warning system for unmanned railway crossings, characterized in that: The early warning system for the unmanned railway crossing comprises: Video acquisition equipment, sensing equipment, terminal equipment, service equipment and early warning equipment; The video acquisition device is connected to the terminal device through the service device; The video acquisition device monitors the unmanned railway crossing, obtains and sends the crossing monitoring data to the service device, the terminal device receives the crossing monitoring data sent by the service device, and visualizes the crossing monitoring data; The sensing device is connected to the early warning device through the service device; The sensing device detects the passage of trains at the unmanned railway crossing, obtains and sends crossing occupancy data to the service device, and the service device outputs a warning attribute signal to the warning device based on the crossing occupancy data. The warning device switches its own operating state to the warning state according to the warning attribute signal.

2. The early warning system for unmanned railway crossing according to claim 1 is characterized in that: The service equipment includes: Edge servers and central servers; The central server is respectively connected to the edge server and the terminal device for communication, and the edge server is also connected to the video acquisition device; The edge server receives the road crossing monitoring data sent by the video acquisition device, sends the road crossing monitoring data to the central server, and the central server transmits the road crossing monitoring data to the terminal device; The edge server is communicatively connected to the sensing device, and the edge server is also connected to the early warning device; The edge server receives the crossing occupancy data sent by the sensing device, and outputs the warning attribute signal to the warning device based on the crossing occupancy data, wherein the warning attribute signal includes a position display signal, a visual prompt signal, and a voice prompt signal.

3. The early warning system for unmanned railway crossing according to claim 2 is characterized in that: The terminal device comprises: A locomotive end, the locomotive end being communicatively connected with the central server; The central server sends the road crossing monitoring data to the locomotive end, and the locomotive end receives the road crossing monitoring data and displays the road crossing monitoring data in a visual manner to prompt the driver of the current traffic status.

4. The early warning system for unmanned railway crossing according to claim 3 is characterized in that: The terminal device further includes: A command terminal, the command terminal being communicatively connected with the central server; The central server also obtains the real-time positioning data of the train, and sends the crossing monitoring data and the real-time positioning data to the command terminal, and the command terminal visualizes the crossing monitoring data and the real-time positioning data to prompt the on-duty personnel of the current traffic status.

5. The early warning system for unmanned railway crossing according to claim 4 is characterized in that: The early warning equipment includes: An electronic screen, the electronic screen being connected to the edge server; The edge server outputs the position display signal to the electronic screen, and the electronic screen displays the passage prompt data and the passage distance data based on the position display signal to switch its own operating state to the warning state.

6. The early warning system for unmanned railway crossing according to claim 5, characterized in that: The early warning device also includes: A signal light, the signal light being connected to the edge server; The edge server outputs the visual prompt signal to the signal light, and the signal light switches its visual color from yellow to red based on the visual prompt signal to switch its own operating state to a warning state.

7. The early warning system for unmanned railway crossing according to claim 5, characterized in that: The early warning device also includes: A sound column, the sound column being connected to the edge server; The edge server outputs the voice prompt signal to the sound column, and the sound column starts a voice prompt based on the voice prompt signal to switch its own operating state to an early warning state.

8. The early warning system for unmanned railway crossing according to claim 1, characterized in that: The sensing device and the early warning device are both deployed using poles.

9. The early warning system for unmanned railway crossing according to claim 8, characterized in that: The early warning system for the unmanned railway crossing also includes: A solar panel is connected to the sensing device and the early warning device respectively.

10. The early warning system for unmanned railway crossing according to claim 9, characterized in that: The sensing device includes a detection radar and a control box: The control box is connected to the detection radar and the solar panel respectively, and the control box is also connected to the edge server for communication, so as to control the working state of the detection radar.

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