Railway level crossing locomotive joint control protection device and protection method based on Internet of Things

Abstract

The invention discloses a railway level crossing locomotive joint control protection device and method based on the Internet of Things. The railway level crossing locomotive joint control protection device comprises a crossing protection terminal, a vehicle-mounted protection terminal and a communication terminal. The crossing protection terminal is arranged at a level crossing and is used for acquiring video information of the level crossing and controlling a barrier gate to be opened / closed when receiving a control instruction sent by the communication terminal, and the warning device works and sends the video information to the communication terminal; the vehicle-mounted protection terminal is arranged in a cab of the locomotive, acquires driving information of the locomotive through a vehicle-mounted GNSS, sends a control instruction to the communication terminal when the locomotive is close to a level crossing and arrives at a specified position, receives and displays video information sent by the communication terminal, and performs voice broadcasting according to the video information; on the basis of the Internet of Things technology, the use of sensors is reduced in combination with the GNSS, and linkage is carried out through crossing protection and the locomotive, so that a locomotive driver can actively acquire the level crossing condition, and the handling capacity of emergency events is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of railway level crossing protection. Specifically, it relates to an interlocking protection device and method for locomotives at railway level crossings based on the Internet of Things. Background Technique

[0002] A railway crossing, also known as a level crossing, is a plane intersection of a road and a railway. Conflicts may occur between the two transportation methods here. Therefore, in order to ensure traffic safety, a protection device is set at the level crossing to ensure the smooth passage of trains and reduce accidents at the same time.

[0003] In recent years, with the continuous deepening of the informatization reform of the railway system, communication technology and network technology have been widely applied in the daily production and management of the railway system. The intelligentization of unmanned level crossings has become a trend. Patents with publication numbers CN208646879U, CN207089325U, etc. have all disclosed a level crossing safety protection system, which monitors the conditions of locomotives, motor vehicles, etc. through sensors set near the level crossing. However, in the actual construction and installation process, the installation of sensors is easily restricted by the installation environment, and the laying construction process of the cables between the sensors is cumbersome, affecting the construction efficiency. At the same time, the communication between the level crossing protection and the locomotive is not smooth. When the locomotive driver's line of sight is not good, he cannot understand the situation of the level crossing in real time. When an accident occurs at the level crossing, the locomotive driver (cannot take emergency braking measures in time), which is likely to cause train operation safety accidents. Summary of the Invention

[0004] In view of the problems in the related art, the present invention proposes an interlocking protection device and method for locomotives at railway level crossings based on the Internet of Things. Through digital transformation on the basis of the existing protection system, the construction difficulty is reduced, and through the real-time linkage between the level crossing protection system and the locomotive, the locomotive driver can actively obtain the situation of the level crossing and improve the ability to handle sudden emergency events.

[0005] For this reason, in order to solve the above technical problems, a technical solution provided by the present invention is as follows: An interlocking protection device for locomotives at railway level crossings based on the Internet of Things, characterized in that: it includes a level crossing protection terminal, an on-vehicle protection terminal and a communication terminal; The level crossing protection terminal is single or multiple, and is respectively set at each level crossing, and obtains the video information in the level crossing area in real time, and controls the opening / closing of the barrier gate, controls the warning device to work and sends the video information to the communication terminal when receiving the control instruction sent by the communication terminal; The vehicle-mounted protection terminal is set in the locomotive cockpit and the dispatching and command center. It obtains the driving information of the locomotive through vehicle-mounted GNSS, sends control instructions to the communication terminal when the locomotive approaches a designated position at a level crossing, receives and displays the video information sent by the communication terminal, and performs voice broadcast according to the video information. The communication terminal is used for wireless communication between the level crossing protection terminal and the vehicle-mounted protection terminal.

[0006] Furthermore, the communication terminal performs wireless communication with the train operation control room.

[0007] Furthermore, the level crossing protection terminal includes a barrier gate, monitoring equipment, and a warning device. Two sets of the barrier gate, monitoring equipment, and warning device are respectively set on the opposite sides of the level crossing. The barrier gate, monitoring equipment, and warning device are powered by a solar power supply system, and are wirelessly networked through a level crossing wireless communication module and then perform wireless communication with the communication terminal. The warning device includes an audible and visual alarm, a level crossing voice intercom, and a sign; a reflective sticker and / or a light strip are set on the barrier gate, and the monitoring equipment is a bullet camera.

[0008] Furthermore, the vehicle-mounted protection terminal includes a vehicle-mounted terminal, a display, and a vehicle-mounted voice intercom. The vehicle-mounted terminal is electrically connected to the display and the vehicle-mounted voice intercom, and performs wireless communication with the communication terminal through a vehicle-mounted wireless communication module.

[0009] Therefore, to solve the above technical problems, another technical solution provided by the present invention is as follows: An Internet of Things-based railway level crossing and locomotive joint control protection method, characterized in that: Step 1: Obtain the locomotive operation route information and the level crossing information passed by the locomotive operation route, and fuse the obtained locomotive operation route information and the passed level crossing information to form a protection path and pre-enter it into the vehicle-mounted terminal. Step 2: Select the corresponding protection path in the vehicle-mounted terminal according to the determined operation route of the locomotive. Step 3: During the locomotive driving process, the vehicle-mounted terminal uses vehicle-mounted GNSS to real-time locate the geographical location of the locomotive, identify the driving direction of the locomotive, and the display shows the driving path track, driving speed, and the distance from the upcoming level crossing; and set the warning distance and warning time for the locomotive to reach the level crossing according to the locomotive driving speed, the distance between the locomotive and the upcoming level crossing, and the level crossing information. Step 4: When the distance between the locomotive and the level crossing to be passed reaches the warning distance, the on-vehicle terminal establishes wireless communication with the level crossing protection terminal to be passed, enters the warning mode, and sends control instructions to the warning device, the barrier gate, and the monitoring device. The warning device, the barrier gate, and the monitoring device enter the working state. The monitoring device acquires the video information within the level crossing area and sends the video information to the locomotive cab display and the train operation control center for display. After the warning time has passed, the barrier gate drops to block the level crossing and waits for the locomotive to enter the level crossing. After the locomotive has left the level crossing, the barrier gate is automatically controlled to rise, and the barrier gate, the warning device, and the monitoring device stop working. The on-vehicle terminal disconnects the wireless communication with the level crossing protection terminal just passed, exits the warning mode, and returns to Step 3.

[0010] Further, in Step 1, the level crossing information includes the location of the level crossing, the width of the level crossing, and the traffic flow of people and vehicles in each time period, and the locomotive operation route information includes the operation route and the running speed; The process of fusing the locomotive operation route information and the level crossing information passed through to form a protection path is as follows: Manually mark the locomotive operation route and the level crossing on the map.

[0011] Further, in Step 3, the warning distance is set to ensure that, without affecting the running speed of the train and giving people and vehicles sufficient time to take countermeasures, it is determined according to the traffic flow of people and vehicles and the running speed when the locomotive passes through the level crossing. The warning time is set to ensure that, under the condition of safety and without affecting the running speed of the train, it is determined according to the traffic flow of people and vehicles, the width of the level crossing, and the running speed when the locomotive passes through the level crossing.

[0012] Further, in Step 4, when the warning device, the barrier gate, and the monitoring device enter the working state, the warning timing starts. After the warning time has been reached, the barrier gate at the entrance to the level crossing drops first and enters the waiting time. Personnel observe through the display whether there are people and vehicles inside the level crossing; if not, a voice broadcast is made, and after the waiting time ends, the barrier gate at the exit from the level crossing drops; if there are, a voice broadcast is made and a voice warning is given through the voice intercom. When there are no people and vehicles inside the level crossing at the end of the waiting time, the barrier gate at the exit from the level crossing drops; if there are still people and vehicles inside the level crossing after the waiting time ends, a voice alarm is given, the barrier gate at the exit from the level crossing drops, and the train operation control center or the locomotive conducts emergency handling.

[0013] Further, the voice broadcast is that the on-vehicle terminal automatically identifies whether there are people and vehicles inside the level crossing according to the AI recognition system and broadcasts the recognition result through the on-vehicle voice intercom; When the barrier gate at the exit from the level crossing drops, the distance between the locomotive and the level crossing to be passed is the shortest braking distance required for the locomotive to brake emergently at its current running speed.

[0014] Furthermore, in the fourth step, the train operation control room displays the current position of the locomotive, the distance to the level crossing, and the video in real time, and prompts the level crossing that the locomotive is approaching. During emergency handling, it is convenient to intervene in a timely manner through voice broadcast warning or perform emergency operations, so as to improve the handling ability of sudden emergency events.

[0015] The beneficial effects of the present invention are as follows: (1) Based on the Internet of Things technology, the present invention combines GNSS to reduce the use of sensors. By using in-vehicle GNSS, it solves the problems of cumbersome on-site construction and complex installation of sensing devices. Through the linkage between level crossing protection and the locomotive, the locomotive driver can actively obtain the situation of level crossings, realize the safety warning of the locomotive approaching the level crossing, communicate with on-site personnel in real time, handle emergencies, and improve the handling ability of sudden emergency events.

[0016] (2) The present application obtains the locomotive speed and the distance to the level crossing to be passed in real time through GNSS. Finally, according to information such as the locomotive driving speed, the distance between the locomotive and the level crossing to be passed, and the level crossing information, the warning distance and warning time for the locomotive to reach the level crossing are dynamically generated, which are automatically generated under the condition of ensuring safety to adapt to the real-time protection of different vehicle speeds and the sizes of level crossings.

[0017] (3) The present application integrates the locomotive operation route information and the level crossing information passed through to form a protection path and pre-enters it into the in-vehicle terminal. When in use, the corresponding protection path is selected in the in-vehicle terminal according to the determined operation route of the locomotive, so as to facilitate timely adjustment of the corresponding route and level crossing information when the locomotive runs on different lines, so as to facilitate the pre-display of the level crossing on the display screen.

[0018] (4) The warning device, the gate, and the monitoring device of the present application enter the working state when the locomotive reaches the warning position and are in the sleep state when the locomotive leaves the level crossing. Thereby, the power consumption can be saved, the battery life can be extended, and at the same time, it is also convenient to use small-power photovoltaic panels and energy storage devices to reduce costs.

[0019] (5) The gate at the entrance to the level crossing of the present application falls first, and the gate at the exit from the level crossing falls later, which can prevent people and vehicles from entering the parallel crossing and is also convenient for people and vehicles inside the level crossing to leave from the exit side in time, preventing people and vehicles from being blocked inside the level crossing when the gates at the entrance and exit of the level crossing fall simultaneously.

[0020] (6) This application is powered by a photovoltaic power supply system, which supports the operation of outdoor devices without power sources and can ensure the normal operation of the devices in rainy and cloudy weather. The vehicle-mounted GNSS can perform multi-mode positioning such as Beidou and GPS to achieve accurate positioning, simplifying the cumbersome installation of on-site sensors; the voice intercom enables voice communication between the locomotive and the on-site level crossing to handle emergency situations.

[0021] (7) This application can directly connect the level crossing protection system with the vehicle-mounted protection system, and can also interconnect the level crossing protection system, the vehicle-mounted protection system, and the train operation control center. By using the existing display devices and voice interaction devices in the train operation control center, it is convenient for the train operation control center to obtain the locomotive operation information and the level crossing environment situation, so as to intervene in time through voice broadcast warning or perform emergency handling, reducing the burden on locomotive drivers.

[0022] (8) Reflective stickers and / or light strips are provided on the barrier gate of this application, which is convenient for illuminating the level crossing in poor light conditions and prompting motor vehicles to pay attention to the level crossing; the monitoring device is a bullet camera, and the train operation control center can obtain real-time video information of the site through the camera. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0024] Figure 1 is a structural block diagram according to an embodiment of the present invention; Figure 2 is a structural schematic diagram of the level crossing protection terminal set at the level crossing.

[0025] Figure 3 is a flow block diagram of the method of the present invention.

[0026] In the figure: 1. Barrier gate; 2. Monitoring device; 3. Warning device; 4. Solar power supply system. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention. Embodiment 1

[0028] As Figure 1-2As shown in the figure, the present invention provides a locomotive joint control protection device and a protection method based on the Internet of Things for railway level crossings, including a crossing protection terminal, an on-vehicle protection terminal, and a communication terminal; There are multiple crossing protection terminals, which are set at each level crossing, and they can obtain the video information in the level crossing area in real time. When receiving the control instruction sent by the communication terminal, they control the opening / closing of the barrier gate 1, control the warning device 3 to work, and send the video information to the communication terminal; The on-vehicle protection terminal is set in the locomotive cockpit and the dispatching and command center. It obtains the driving information of the locomotive through the on-vehicle GNSS, sends a control instruction to the communication terminal when the locomotive approaches the level crossing, receives and displays the video information sent by the communication terminal, and performs voice broadcast according to the video information; The communication terminal is used for wireless communication between the crossing protection terminal and the on-vehicle protection terminal.

[0029] Among them, the crossing protection terminal includes a barrier gate 1, a monitoring device 2, and a warning device 3. Two sets of the barrier gate 1, the monitoring device 2, and the warning device 3 are respectively set on the opposite sides of the level crossing and on both sides of the railway track to facilitate blocking the road and preventing people from entering the railway line. The barrier gate 1, the monitoring device 2, and the warning device 3 are powered by a solar power supply system 4. The solar panels are preferably installed on the control box of the barrier gate 1 and the warning device 3 to reduce the laying of cables. After wireless networking through the crossing wireless communication module, they perform wireless communication with the communication terminal, and realize self-networking within the same level crossing through the Internet of Things technology, reducing the laying of cables and increasing the convenience of construction.

[0030] Among them, the warning device 3 includes an audible and visual alarm, a crossing voice intercom, and a sign; it notifies by sound and light that a train is about to pass, facilitating motor vehicles and pedestrians to quickly pass through the level crossing.

[0031] Among them, the on-vehicle protection terminal includes an on-vehicle terminal, a display, and an on-vehicle voice intercom. The on-vehicle terminal is electrically connected to the display and the on-vehicle voice intercom, and performs wireless communication with the communication terminal through the on-vehicle wireless communication module; only by connecting to the existing on-vehicle GNSS on the locomotive can the running information such as the locomotive position and speed be obtained. The display is a touch screen; it is convenient for locomotive personnel to operate the on-vehicle terminal for parameter setting. For example, when the on-vehicle protection terminal sends a control instruction to the communication terminal, the distance between the locomotive and the level crossing is set through the on-vehicle terminal. Embodiment 2

[0032] Such as Figure 1-2As shown in the figure, this embodiment is obtained by adding technical features such as a train operation control room on the basis of Embodiment 1. The remaining technical features are the same as those in Embodiment 1, and the same parts will not be elaborated here. The difference between this embodiment and Embodiment 1 lies in that the communication terminal performs wireless communication with the train operation control room.

[0033] In this embodiment, the level crossing protection system, the on-vehicle protection system, and the train operation control room are interconnected, facilitating the train operation control room to obtain the locomotive operation information and the level crossing environment conditions, so as to intervene in a timely manner through voice broadcast warning or emergency handling, reducing the burden on locomotive drivers. Embodiment 3

[0034] As Figure 1-2 shown in the figure, this embodiment is obtained by adding technical features such as light strips on the basis of Embodiment 1 or 2. The remaining technical features are the same as those in Embodiment 1 or 2, and the same parts will not be elaborated here. The difference between this embodiment and Embodiment 1 or 2 lies in that reflective stickers and / or light strips are provided on the barrier 1; the monitoring device 2 is a bullet camera.

[0035] In this embodiment, the reflective stickers and / or light strips facilitate illuminating the level crossing in case of poor light and prompt motor vehicles to pay attention to the level crossing; the monitoring device 2 is a bullet camera, and the train operation control room can obtain real-time video information of the scene through the camera.

[0036] The monitoring device 2 has a video recording function, can view the videos of cameras at each level crossing in real time, and supports real-time and historical video playback.

[0037] The overall technical solution formed by integrating the above embodiments is another technical solution disclosed in the present application during the use process. This technical solution is: as Figure 1-3 shown in the figure, a method for interlocking protection of railway level crossings and locomotives based on the Internet of Things, the steps of which are: S1. Obtain the locomotive operation route information and the level crossing information passed by the locomotive operation route, and fuse the obtained locomotive operation route information and the passed level crossing information to form a protection path and pre-enter it into the on-vehicle terminal; S2. Select the corresponding protection path in the on-vehicle terminal according to the determined operation route of the locomotive; S3. During the locomotive driving process, the on-vehicle terminal real-time locates the geographical location of the locomotive through on-vehicle GNSS, identifies the driving direction of the locomotive, and the display shows the driving path trajectory, driving speed, and the distance from the level crossing to be passed; and set the warning distance and warning time for the locomotive to reach the level crossing according to the locomotive driving speed, the distance between the locomotive and the level crossing to be passed, and the level crossing information; S4. When the distance between the locomotive and the level crossing to be passed reaches the warning distance, the on-vehicle terminal establishes wireless communication with the level crossing protection terminal to be passed, enters the warning mode, and sends control instructions to the warning device 3, the gate 1, and the monitoring device 2. The warning device 3, the gate 1, and the monitoring device 2 enter the working state. The monitoring device 2 acquires the video information in the level crossing area and sends the video information to the locomotive cab display and the train operation dispatching room for display. After the warning time has passed, the gate 1 drops to block the level crossing and waits for the locomotive to enter the level crossing. After the locomotive has left the level crossing, the gate 1 is automatically controlled to rise. The gate 1, the warning device 3, and the monitoring device 2 stop working. The on-vehicle terminal disconnects the wireless communication with the level crossing protection terminal just passed, exits the warning mode, and returns to S3.

[0038] Further, in step 1, the level crossing information includes the location of the level crossing, the width of the level crossing, and the traffic flow of people and vehicles in each time period. The locomotive operation route information includes the operation route and the running speed. The process of fusing the locomotive operation route information and the level crossing information passed through to form a protection path is as follows: Manually mark the locomotive operation route and the level crossing on the map.

[0039] Multiple on-vehicle protection terminals set on different locomotives can also be networked and communicated through the line communication terminal, which is convenient for data sharing and reduces the input difficulty of the protection path. For example, the same protection path is shared by all on-vehicle protection terminals, and other locomotives do not need to add the protection path separately. Moreover, when the same train passes through the same intersection, the previously stored warning distance, warning time, etc. can be directly retrieved and used.

[0040] In the above step S3, the warning distance is set to ensure that without affecting the running speed and giving people and vehicles sufficient time to take countermeasures, it is determined according to the traffic flow of people and vehicles and the running speed when the locomotive passes through the level crossing. The warning time is set to ensure safety and without affecting the running speed, and it is determined according to the traffic flow of people and vehicles, the width of the level crossing, and the running speed when the locomotive passes through the level crossing.

[0041] For example: When the train is running normally, the driving distance of the train during the warning period is obtained based on the sum of the warning time and the waiting time. The warning distance is the sum of the obtained train driving distance and the minimum braking distance. Among them, the minimum braking distance is related to the train speed, and the warning time and the waiting time are related to the traffic flow of people and vehicles and the width of the level crossing. The greater the traffic flow of people and vehicles, the greater the probability of the duration of taking countermeasures (stopping entering the level crossing or quickly entering and passing through the level crossing). The greater the traffic flow of people and vehicles, the greater the possibility of more people and vehicles in the level crossing. And the wider the level crossing, the greater the possibility that it takes a longer time for people and vehicles to leave the level crossing. Therefore, this application dynamically determines the warning distance, warning time, and waiting time according to the train speed, the traffic flow of people and vehicles at the level crossing, and the width of the level crossing, making the duration of closing the level crossing relatively reasonable and reducing the impact of the train passing on the level crossing.

[0042] In the above step S4, when the warning device 3, the barrier gate 1, and the monitoring device 2 enter the working state, the warning timing starts. After reaching the warning time, the barrier gate 1 at the entrance to the level crossing drops first, entering the waiting time. Personnel observe whether there are people and vehicles in the level crossing through the display. If not, a voice broadcast is made and the barrier gate 1 at the exit from the level crossing drops after the waiting time ends. If there are, a voice broadcast is made and a voice warning is given through the voice intercom. When there are no people and vehicles in the level crossing at the end of the waiting time, the barrier gate 1 at the exit from the level crossing drops. If there are still people and vehicles in the level crossing after the waiting time ends, a voice alarm is given, the barrier gate 1 at the exit from the level crossing drops, and the dispatching control room or the locomotive conducts emergency handling.

[0043] Among them, the voice broadcast is that the in-vehicle terminal automatically identifies whether there are people and vehicles in the level crossing according to the AI recognition system, and broadcasts the recognition result through the in-vehicle voice intercom. When the barrier gate 1 at the exit from the level crossing drops, the distance between the locomotive and the level crossing to be passed is the shortest braking distance required for the locomotive to make an emergency stop at the current driving speed.

[0044] In the above step S4, the train operation dispatching room real-time displays the current position of the locomotive, the distance to the crossing, and the video, and prompts the crossing that the locomotive is about to approach, so as to be able to intervene in time through voice broadcast warning or conduct emergency operations during emergency handling, improving the handling ability of sudden emergency events.

[0045] Among them, in the technical solution formed by the present invention, the level crossing can be selected on the display to enable the on-vehicle terminal to temporarily establish wireless communication with the level crossing protection terminal, and send control instructions to the warning device 3, the gate 1 and the monitoring device 2. The warning device 3, the gate 1 and the monitoring device 2 enter the working state. The monitoring device 2 acquires the video information in the level crossing area and sends the video information to the locomotive cab display and the train operation dispatching room for display, facilitating the temporary inspection of the level crossing situation. Then, the warning device 3, the gate 1 and the monitoring device 2 can be controlled to act through the virtual control buttons on the display, enabling voice intercom, video clarity switching and gate 1 control, so as to facilitate long-distance inspection and maintenance. When the actions can be completed according to the control, fault alarms are given through the on-vehicle voice interaction device.

[0046] In summary, by means of the above technical solution of the present invention, based on the Internet of Things (IOT) technology, combined with GNSS, intelligent vision and intelligent control, the present invention realizes the intelligent perception, safety warning, intelligent identification and linkage control of level crossings; the system supports off-grid photovoltaic power generation and can ensure that the equipment works continuously for more than 20 days in rainy weather. Using on-vehicle GNSS solves the problems of cumbersome on-site construction and complex installation of sensing devices. The integration of intelligent vision realizes the safety warning of trains approaching level crossings, enables real-time communication with on-site personnel and handles emergencies.

[0047] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A railway level crossing locomotive joint control protection device based on the Internet of Things, characterized by: Including crossing protection terminal, vehicle protection terminal and communication terminal; The crossing protection terminal is single or multiple, and is respectively set at each level crossing to obtain the video information in the level crossing area in real time, and when receiving the control command sent by the communication terminal, it controls the gate to open / close, controls the warning device to work, and sends the video information to the communication terminal; The on-board protection terminal is installed in the locomotive cockpit and the dispatching command center. It obtains the locomotive's driving information through the on-board GNSS, sends control instructions to the communication terminal when the locomotive approaches the designated position of the level crossing, receives and displays the video information sent by the communication terminal, and makes voice broadcasts based on the video information; The communication terminal is used for wireless communication between the crossing protection terminal and the vehicle-mounted protection terminal.

2. The locomotive joint control protection device for railway level crossing based on Internet of Things according to claim 1 is characterized in that: The communication terminal performs wireless communication with the vehicle dispatching room.

3. The locomotive joint control protection device for railway level crossing based on Internet of Things according to claim 1 or 2, characterized in that: The road crossing protection terminal includes a gate, a monitoring device and a warning device. Two groups of the gate, the monitoring device and the warning device are respectively arranged on opposite sides of the level crossing. The gate, the monitoring device and the warning device are powered by a solar power supply system and wirelessly communicate with the communication terminal after wireless networking through a road crossing wireless communication module. The warning device includes an audible and visual alarm, a voice intercom at a road crossing, and a signboard; the barrier is provided with a reflective sticker and / or a light strip, and the monitoring device is a gun-type camera.

4. The locomotive joint control protection device for railway level crossing based on Internet of Things according to claim 3 is characterized in that: The vehicle-mounted protection terminal includes a vehicle-mounted terminal, a display and a vehicle-mounted voice intercom. The vehicle-mounted terminal is electrically connected to the display and the vehicle-mounted voice intercom, and wirelessly communicates with the communication terminal through a vehicle-mounted wireless communication module.

5. A railway level crossing and locomotive joint control protection method based on the Internet of Things, characterized by: Step 1: obtaining locomotive route information and level crossing information that the locomotive passes through, and integrating the obtained locomotive route information and the level crossing information to form a protection path and pre-entering it into the vehicle terminal; Step 2: Select the corresponding protection path in the vehicle terminal according to the running route determined by the locomotive; Step 3: During the locomotive's travel, the on-board terminal uses the on-board GNSS to locate the locomotive's geographic location in real time, identify the locomotive's travel direction, and display the travel path trajectory, travel speed, and distance to the level crossing to be passed; and set the warning distance and warning time for the locomotive to reach the level crossing according to the locomotive's travel speed, the distance between the locomotive and the level crossing to be passed, and the level crossing information; Step 4. When the distance between the locomotive and the level crossing to be passed reaches the warning distance, the on-board terminal establishes wireless communication with the level crossing protection terminal to be passed, enters the warning mode and sends control instructions to the warning device, gate and monitoring device. The warning device, gate and monitoring device enter the working state. The monitoring device obtains the video information in the level crossing area and sends the video information to the locomotive cab display and the driving dispatch room for display. When the warning time is reached, the gate falls to block the crossing and waits for the locomotive to enter the crossing. After the locomotive leaves the crossing, the gate is automatically controlled to rise, and the gate, warning device and monitoring device stop working. The on-board terminal disconnects the wireless communication with the level crossing protection terminal just passed, exits the warning mode, and returns to step 3.

6. The method for locomotive joint control protection at railway level crossing based on Internet of Things according to claim 5 is characterized in that: In the step 1, the level crossing information includes the level crossing location, the level crossing width and the pedestrian and vehicle flow in each time period, and the locomotive operation route information includes the operation route and the driving speed; The process of integrating the locomotive route information and the level crossing information to form a protection path is as follows: manually marking the locomotive route and the level crossing on the map.

7. The method for locomotive joint control protection at railway level crossing based on Internet of Things according to claim 5 is characterized in that: In the step three, the setting of the warning distance is determined based on the flow of people and vehicles and the driving speed when the locomotive passes through the level crossing, so as to ensure that the driving speed is not affected and that people and vehicles have sufficient time to take countermeasures. The setting of the warning time is determined based on the flow of people and vehicles, the width of the level crossing and the driving speed when the locomotive passes through the level crossing, so as to ensure safety and not affect the driving speed.

8. The method for locomotive joint control protection at railway level crossing based on Internet of Things according to claim 5 is characterized by: In the step 4, the warning timing starts when the warning device, the gate and the monitoring device enter the working state. After the warning time is reached, the gate at the entrance to the level crossing falls first, and the waiting time begins. The personnel observe through the display whether there are people or vehicles in the level crossing; if not, a voice broadcast is made and the gate at the exit from the level crossing falls after the waiting time ends; if yes, a voice broadcast is made and a voice shouting warning is made through the voice intercom. If there are no people or vehicles in the level crossing at the end of the waiting time, the gate at the exit from the level crossing falls again; if there are still people or vehicles in the level crossing after the waiting time ends, a voice alarm is given, the gate at the exit from the level crossing falls again, and the dispatching control room or locomotive performs emergency processing.

9. The method for locomotive joint control protection at railway level crossing based on Internet of Things according to claim 5 is characterized in that: The voice broadcast is for the vehicle terminal to automatically identify whether there are people or vehicles at the level crossing based on the AI ​​recognition system, and broadcast the recognition results through the vehicle voice intercom; When the gate at the exit of the level crossing falls, the distance between the locomotive and the level crossing to be passed is the shortest braking distance required for an emergency stop at the locomotive's current speed.

10. The method for locomotive joint control protection at railway level crossing based on Internet of Things according to claim 5 is characterized in that: In step 4, the train dispatch room displays the current position of the locomotive, the distance to the crossing, and the video in real time, and prompts the locomotive to approach the crossing, so that when handling emergencies, timely intervention can be made to issue warnings through voice broadcasts or perform emergency operations, thereby improving the ability to handle sudden emergencies.

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