Level crossing safety protection system and safety protection control method

Abstract

The invention belongs to the technical field of rail traffic safety protection, and discloses a level crossing safety protection system and a safety protection control method, and the level crossing safety protection system comprises a fixing assembly and a protection robot. The fixing assembly comprises fixing supports and magnetic attraction warning belts, the fixing supports are symmetrically arranged on the two sides of the tail end of a level crossing on the warehousing side, and the magnetic attraction warning belts are arranged on the fixing supports; the protection robot comprises an AGV trolley, a magnetic attraction part and a detection recognition part, and the AGV trolley is arranged at a charging position in the maintenance warehouse and can move in the maintenance warehouse. During defense organization, the AGV trolley moves to the side portion of the fixing support so that the magnetic attraction piece can be connected with the magnetic attraction warning tape, and the magnetic attraction warning tape is pulled to conduct defense organization. And after the locomotive warehouse-in and warehouse-out operation is completed, the AGV trolley returns to the fixed support to enable the magnetic attraction part to be separated from the magnetic attraction warning tape and returns to the charging position along the original path. The system is high in automation degree, can automatically achieve physical blocking of the level crossing area, and guarantees the safety of personnel and vehicles.

Description

Technical Field

[0001] This invention relates to the field of rail transit safety protection technology, and in particular to a level crossing safety protection system and safety protection control method. Background Technology

[0002] With the continuous increase in railway transport capacity, locomotive maintenance and upkeep operations at depots are becoming increasingly busy, and the number and frequency of vehicles entering and leaving maintenance depots have surged. Furthermore, with the increase in business transactions and various forms of labor, maintenance personnel and repair vehicles frequently cross railway level crossings within the depot, often encountering locomotives and rolling stock. This poses a significant threat to shunting safety, as well as to vehicles and pedestrians, and has a certain impact on locomotive maintenance and production.

[0003] Currently, the entry and exit of high-speed trains from and from the maintenance depot are mainly controlled manually, supplemented by audible and visual warnings and physical protection via barrier gates. However, manual protection is inefficient, with long deployment and preparation cycles, resulting in a significant waste of manpower. Simple warnings and cameras can only alert people, not provide protection. Furthermore, barrier gate systems require substantial construction and installation space, and their retraction is complex in the event of power outages or mechanical failures. They also lack obstacle avoidance features for personnel and vehicles, resulting in poor protective effectiveness.

[0004] Therefore, there is an urgent need for a safety protection system and safety protection control method for level crossings to solve the above problems. Summary of the Invention

[0005] According to one aspect of the present invention, a level crossing safety protection system is provided, which has a high degree of automation and can automatically achieve physical blocking of the level crossing area to ensure the safety of personnel and vehicles.

[0006] To achieve this objective, the present invention adopts the following technical solution: The level crossing safety protection system is installed inside the maintenance depot, and the level crossing safety protection system includes: The fixing component includes a fixing bracket and a magnetic warning tape. The fixing bracket is symmetrically arranged on both sides of the end of the level crossing on the entrance side of the warehouse, and the magnetic warning tape is disposed on the fixing bracket. The protective robot includes an AGV (Automated Guided Vehicle), a magnetic attachment, and a detection and identification device. The AGV is located at a charging station within the maintenance depot and can move within the maintenance depot. The magnetic attachment and the detection and identification device are both mounted on the AGV and are communicatively connected to the AGV. During deployment, the AGV can move the magnetic component from the charging position to the side of the fixed bracket so that the magnetic component can be magnetically connected to the magnetic warning tape. The AGV can also move the magnetic component to pull the warning tape inside the magnetic warning tape along the track parallel to the level crossing and stop inside the door of the maintenance depot. When no locomotive is detected within the detection area of ​​the detection and identification device, it is determined that the locomotive's entry and exit operation is completed. The detection and identification device sends a disarming signal to the AGV trolley, and the AGV trolley drives the magnetic suction device back to the side of the fixed bracket. The magnetic suction device separates from the magnetic warning tape, and the AGV trolley returns to the charging position along the original route.

[0007] Optionally, the protective robot further includes a magnetic bracket, which is mounted on the AGV vehicle, and the magnetic components are mounted on the magnetic bracket and correspond one-to-one with the magnetic warning strips.

[0008] Optionally, the protective robot further includes a protective cover, which is placed on the AGV, the magnetic suction component is disposed inside the protective cover, and the detection and identification component is disposed on the top of the protective cover.

[0009] Optionally, the protective robot also includes a warning device, which is installed on the AGV and can provide sound and / or light warnings during the deployment and disarming of the protective robot.

[0010] Optionally, the warning device includes a voice alarm capable of issuing a voice warning during the movement of the AGV and while the AGV is stationary inside the maintenance bay door; and / or, The warning device includes a signal warning light, which can emit light warnings during the movement of the AGV and when the AGV is stopped inside the door of the maintenance warehouse.

[0011] Optionally, the level crossing safety protection system further includes a control module. The AGV, the magnetic connector, and the detection and identification device are all communicatively connected to the control module. The control module can control the start, stop, and travel route of the AGV. The control module can also control the magnetic connection or release between the magnetic connector and the magnetic warning strip. The control module can also control the detection and identification device to identify whether there is a vehicle in the detection area and receive the identification signal from the detection and identification device.

[0012] Optionally, the detection and identification device can also identify the vehicle number of a locomotive within the detection area, and the control module can receive the vehicle number information identified by the detection and identification device.

[0013] Optionally, the level crossing safety protection system further includes a wireless communication module, through which the AGV, the magnetic suction device, and the detection and identification device are respectively connected to the control module.

[0014] Optionally, the AGV includes a chassis and axles, with a plurality of axles rotatably disposed at the bottom of the chassis to drive the chassis to move.

[0015] According to another aspect of the present invention, a level crossing safety protection control method is provided, which performs safety protection of the level crossing within the maintenance depot based on the level crossing safety protection system as described in any of the preceding claims, the level crossing safety protection control method comprising the following steps: S100. When the locomotive's entry and exit operations begin, the protective robot is activated to begin the deployment process; S200, the AGV trolley moves the magnetic component from the charging position to the side of the fixed bracket, so that the magnetic component is magnetically connected to the magnetic warning tape; S300, the AGV trolley drives the magnetic suction component to pull the warning strip inside the magnetic warning strip along the direction parallel to the track of the level crossing and stops inside the door of the maintenance warehouse; S400. The detection and identification device continuously identifies whether there is a vehicle in the detection area while the AGV is stationary. When the detection and identification device detects that there is no vehicle in the detection area, it determines that the vehicle's entry and exit operation is completed and sends a disarming signal to the AGV. S500, the AGV trolley drives the magnetic suction component back to the side of the fixed bracket, and the magnetic suction component separates from the magnetic warning tape; S600, the AGV returns to the charging position along the original route.

[0016] The beneficial effects of this invention are: The level crossing safety protection system provided by this invention is installed inside the maintenance depot and can automatically physically block the level crossing area when locomotives enter or exit the depot, ensuring the safety of personnel and vehicles. Specifically, the level crossing safety protection system includes a fixed component and a protective robot. The fixed component includes a fixed bracket and a magnetic warning strip. The fixed bracket is symmetrically arranged on both sides of the end of the level crossing on the entry side of the depot, and the magnetic warning strip is installed on the fixed bracket. The fixed bracket allows the magnetic warning strip to be installed and fixed on both sides of the level crossing. The protective robot includes an AGV (Automated Guided Vehicle) cart, a magnetic component, and a detection and identification component. The AGV cart is located at a charging station inside the maintenance depot and can move within the depot. The magnetic component and the detection and identification component are both installed on the AGV cart and are communicatively connected to the AGV cart. The AGV cart can move the magnetic component and the detection and identification component.

[0017] During deployment, the AGV (Automated Guided Vehicle) moves the magnetic chuck from the charging position to the side of the fixed support, allowing it to magnetically connect with the magnetic warning tape. Simultaneously, the AGV also pulls the magnetic chuck along a track parallel to the level crossing, stopping inside the maintenance bay door. This setup effectively raises warning tape on both sides of the level crossing, physically blocking personnel and vehicles. When no vehicle is detected within the detection area of ​​the sensor, the vehicle's entry / exit operation is considered complete, and the sensor sends a disarming signal to the AGV. The AGV then moves the magnetic chuck back to the side of the fixed support, separating from the magnetic warning tape, and finally returns to the charging position. Through the coordination of the AGV, magnetic chuck, and sensor, automatic deployment and disarming are achieved, effectively improving automation and work efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of the present invention and these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the deployed structure of the level crossing safety protection system provided in this embodiment of the invention; Figure 2 This is a schematic diagram of the structure of the protective robot provided in an embodiment of the present invention; Figure 3 This is a model diagram of the communication connection between the control module, wireless communication module, protective robot, and safety interlock monitoring module provided in the embodiments of the present invention. Figure 4This is a schematic diagram of the structure of the level crossing safety protection system before or after deployment, provided in an embodiment of the present invention. Figure 5 This is the first movement route map of the protective robot during the deployment process provided in this embodiment of the invention; Figure 6 This is the second movement route map of the protective robot during the deployment process provided in this embodiment of the invention; Figure 7 This is a schematic diagram of the deployed structure of the level crossing safety protection system provided in this embodiment of the invention; Figure 8 This is the first movement route map of the protective robot during the disarmament process provided in this embodiment of the invention; Figure 9 This is the second movement route map of the protective robot during the disarmament process provided in the embodiments of the present invention.

[0020] In the picture: 100. Maintenance bay; 101. Bay door; 102. Charging station; 200. Track; 1. Fixing components; 11. Fixing bracket; 12. Magnetic warning tape; 2. Protective robot; 21. AGV (Automated Guided Vehicle); 22. Magnetic component; 23. Detection and identification component; 24. Magnetic bracket; 25. Protective cover; 26. Warning component; 3. Control module; 4. Wireless communication module; 51. Safety limits. Detailed Implementation

[0021] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0024] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0025] In the description of this invention, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0026] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0027] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0028] In the description of this invention, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this invention, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0029] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0030] This embodiment provides a safety protection system for level crossings, such as Figure 1 and Figure 4 As shown, it is installed inside the maintenance depot 100 and can automatically physically block the level crossing area when locomotives enter or leave the maintenance depot 100, ensuring the safety of personnel and vehicles.

[0031] Reference Figures 1-9 The level crossing safety protection system includes a fixing component 1 and a protective robot 2. The fixing component 1 includes a fixing bracket 11 and magnetic warning tapes 12. The fixing brackets 11 are symmetrically arranged on both sides of the end of the level crossing on the entrance side, and the magnetic warning tapes 12 are mounted on the fixing brackets 11. The fixing brackets 11 allow the magnetic warning tapes 12 to be installed and fixed on both sides of the level crossing. Specifically, multiple magnetic warning tapes 12 are provided, spaced apart along the height of the fixing brackets 11 to improve the protective effect, safety, and reliability. In this embodiment, three magnetic warning tapes 12 are provided. It should be noted that the overall length of the level crossing is approximately 5 meters; therefore, the length of the stretchable warning tape within the magnetic warning tape 12 must be greater than or equal to 5 meters to facilitate deployment.

[0032] The protective robot 2 includes an AGV (Automated Guided Vehicle) 21, a magnetic chuck 22, and a detection and identification device 23. The AGV 21 is positioned at a charging station 102 within the maintenance bay 100 and can move within the maintenance bay 100. The magnetic chuck 22 and the detection and identification device 23 are both mounted on the AGV 21 and are communicatively connected to it. The AGV 21 can move the magnetic chuck 22 and the detection and identification device 23, improving the automation level of the protective system. In this embodiment, two protective robots 2 are provided, corresponding one-to-one with the magnetic warning strips 12 on both sides of the level crossing.

[0033] During the deployment process, such as Figures 4-6 As shown, the AGV trolley 21 can move the magnetic suction component 22 from the charging position 102 to the side of the fixed bracket 11, so that the magnetic suction component 22 is magnetically connected to the magnetic warning tape 12. Simultaneously, the AGV trolley 21 can also move the magnetic suction component 22 to pull the warning tape inside the magnetic warning tape 12 along the track 200 parallel to the level crossing and stop inside the door 101 of the maintenance depot 100, as shown in the figure. Figure 7 This setup allows warning tape to be installed on both sides of the level crossing, effectively blocking pedestrians and vehicles.

[0034] After deployment, the detection and identification unit 23 forms a detection area at track 200. When a locomotive travels on track 200, it will obstruct the detection area. The detection and identification unit 23 uses the obstruction recognition function to determine whether a locomotive is present within the detection area. When no locomotive is detected within the detection area of ​​the detection and identification unit 23, it is determined that the locomotive's entry and exit operation is complete, and the detection and identification unit 23 sends a disarming signal to the AGV trolley 21. Figure 8 and Figure 9 As shown, the AGV trolley 21, along with the magnetic suction component 22, returns to the side of the fixed bracket 11. The magnetic suction component 22 separates from the magnetic warning tape 12, and finally, the AGV trolley 21 returns to the charging position 102 along the same route. A charging pile is installed at the charging position 102 in the maintenance depot 100, which can be used to charge the AGV trolley 21. Through the coordinated operation of the AGV trolley 21, the magnetic suction component 22, and the detection and identification component 23, this level crossing safety protection system can achieve automatic arming and disarming, effectively improving the degree of automation and work efficiency.

[0035] Specifically, continue to refer to Figure 1 and Figure 2 The protective robot 2 also includes a magnetic bracket 24. The magnetic bracket 24 is mounted on the AGV trolley 21, and the magnetic components 22 are mounted on the magnetic bracket 24, corresponding one-to-one with the magnetic warning tapes 12. The magnetic bracket 24 is used to install and fix the magnetic components 22, ensuring the stability of the magnetic components 22 during the movement of the AGV trolley 21.

[0036] For example, the magnetic attractor 22 can specifically be an electromagnet in the prior art. By setting an electromagnet, it is convenient for operators to control the connection and disconnection of the magnetic attractor 22 and the magnetic warning tape 12.

[0037] More specifically, the protective robot 2 also includes a protective cover 25. The protective cover 25 is mounted on the AGV trolley 21, and the magnetic bracket 24 and magnetic suction element 22 are both disposed inside the protective cover 25, with the magnetic suction element 22 positioned close to the side wall of the protective cover 25. The protective cover 25 isolates and protects the internal components. A detection and identification element 23 is disposed on the top of the protective cover 25. In this embodiment, the detection and identification element 23 is a camera. The installation of the detection and identification element 23 on the top of the protective cover 25 helps to expand the shooting range and prevents the detection and identification element 23 from being obstructed by other objects.

[0038] More specifically, the protective robot 2 also includes a warning device 26. The warning device 26 is mounted on the AGV trolley 21 and provides audible and / or visual warnings during the deployment and disarming of the protective robot 2. By setting up the warning device 26, personnel and vehicles can be alerted, reminding them not to cross the protected area.

[0039] In this embodiment, the warning device 26 includes a voice alarm. The voice alarm can issue a voice warning during the movement of the AGV 21 and when the AGV 21 is inside the door 101 of the maintenance warehouse 100. The voice alarm is integrated into the AGV 21. During the movement of the AGV 21, the voice alarm can prompt personnel and vehicles to avoid the AGV 21's path to prevent collisions; when the AGV 21 is inside the door 101 of the maintenance warehouse 100, the voice alarm can remind personnel and vehicles not to cross the warning tape.

[0040] Furthermore, the warning component 26 also includes a signal warning light, which can emit light warnings during the movement of the AGV trolley 21 and when the AGV trolley 21 is stationary inside the door 101 of the maintenance bay 100. The function of the signal warning light is the same as that of the voice alarm, and will not be elaborated here. By setting up both a voice alarm and a signal warning light, both sound and light can be used for warning, thereby improving the warning effect.

[0041] Preferably, the AGV 21 also integrates LiDAR and collision sensors. Through LiDAR, collision sensors, and cameras, the AGV 21 can automatically sense surrounding people and objects during operation, avoiding obstacles and stopping in time to prevent collisions.

[0042] Furthermore, the AGV trolley 21 is also equipped with an emergency stop button. In an emergency, the emergency stop button on the AGV trolley 21 can be pressed to stop the protective robot 2 from working, and the protective robot 2 can be manually pushed away from the track.

[0043] In this embodiment, the AGV trolley 21 includes a chassis and axles. The axles are rotatably mounted on the bottom of the chassis to drive the chassis to move. The diameter of the axles is greater than or equal to 150mm, so that the AGV trolley 21 can pass through rail gaps of 80-100mm.

[0044] The technical specifications of the protective robot 2 in this embodiment are as follows: Control methods: wireless drive / local handheld control / emergency stop button; Power supply method: Battery powered, charging station charged; Navigation guidance method: Laser navigation; Travel speed: 1 meter per second; Obstacle avoidance method: LiDAR + infrared + collision bar detection; Warning method: Voice + warning light; Minimum traction force: 15KG; Magnetic lock: 150KG magnetic lock; Camera: 2 megapixels, with vehicle license plate recognition and occlusion detection functions, 2 sets of IO input points, and WIFI access function; Dimensions: Length ≤ 800mm, Width ≤ 500mm, Height ≤ 1500mm; Output signals: 4 sets of IO inputs and outputs, providing a 24V power supply interface.

[0045] Optionally, such as Figure 1 , Figures 3-9 As shown, the level crossing safety protection system also includes a control module 3. The AGV trolley 21, magnetic suction device 22, detection and identification device 23, and warning device 26 are all communicatively connected to the control module 3. Exemplarily, the control module 3 includes a back-end server group and a controller to provide storage, processing, and data transmission services for the level crossing safety protection system.

[0046] Specifically, the control module 3 can control the start, stop, and travel route of the AGV trolley 21. The control module 3 can also control the magnetic connection or release between the magnetic suction component 22 and the magnetic warning strip 12. The control module 3 can also control the detection and identification component 23 to identify the presence of a vehicle within the detection area and receive the identification signal from the detection and identification component 23. The application principle of this control module 3 is existing technology and will not be elaborated here.

[0047] More specifically, the level crossing safety protection system also includes a wireless communication module 4. The AGV trolley 21, the magnetic suction component 22, and the detection and identification component 23 are all connected to the control module 3 via the wireless communication module 4. The wireless communication module 4 can be a wireless AP device in the prior art, using WiFi to realize data communication between the various components.

[0048] Optionally, the detection and identification component 23 in this embodiment can also identify the locomotive number within the detection area, and the control module 3 can also receive the locomotive number information identified by the detection and identification component 23. The control module 3 can match the locomotive number information with the locomotive's entry and exit times to form a locomotive operation log, and store the relevant data in the server database. Other systems can call this data through the API interface, thereby effectively improving work efficiency and system automation.

[0049] Optionally, such as Figures 3-9 As shown, safety clearances 51 are formed on both sides of the track 200 at the level crossing within the maintenance depot 100. The width of the safety clearances 51 is set according to relevant track safety regulations. The AGV trolley 21 must not interfere with the boundary of the safety clearances 51 during deployment and disarming. The movement route and deployment / stopping position of the AGV trolley 21 are both located outside the safety clearances 51 to improve safety.

[0050] This embodiment also provides a level crossing safety protection control method, which uses the level crossing safety protection system provided in this embodiment to provide safety protection for the level crossing within the maintenance depot 100. The level crossing safety protection control method includes the following steps: S100. When the locomotive enters or leaves the depot, the protective robot 2 is activated to begin the deployment process.

[0051] Specifically, after receiving the locomotive's entry and exit instructions in the dispatch room, the staff activates the protective robot 2 through the control module 3.

[0052] S200 and AGV trolley 21 move the magnetic component 22 from the charging position 102 to the side of the fixed bracket 11, so that the magnetic component 22 is magnetically connected to the magnetic warning tape 12.

[0053] In this step, the two protective robots 2 leave the charging position 102 and navigate to the two sides of the track that need to be protected by laser map. After finding the corresponding magnetic warning tape 12, the electromagnet installed on the AGV trolley 21 of the protective robot 2 is energized and magnetically connected to the magnetic warning tape 12.

[0054] S300 and AGV trolley 21 drive magnetic suction component 22 to pull the warning tape inside magnetic suction warning tape 12 along the track 200 parallel to the level crossing and stop inside the door 101 of maintenance depot 100.

[0055] Specifically, the two AGV trolleys 21 pull the warning tape inside the magnetic warning tape 12 to the inside of the gate 101 of the maintenance warehouse 100, thereby achieving the protection and blocking functions of the level crossing.

[0056] It should be noted that the protective robot 2 will provide audio and visual warnings during its deployment and movement to remind personnel and vehicles to give way. Furthermore, once deployed, the protective robot 2 will continue to provide audio and visual warnings to remind personnel and vehicles not to cross the protected area.

[0057] S400 and the detection and identification device 23 continuously identify whether there is a locomotive in the detection area while the AGV trolley 21 is stationary. When the detection and identification device 23 detects that there is no locomotive in the detection area, it determines that the locomotive's entry and exit operation is completed and sends a disarming signal to the AGV trolley 21.

[0058] Specifically, once the protective robot 2 recognizes through its top camera that the locomotive has completely passed the level crossing, the system automatically determines that the locomotive has completed its entry and exit operations.

[0059] S500 and AGV trolley 21 drive the magnetic suction component 22 back to the side of the fixed bracket 11, and the magnetic suction component 22 separates from the magnetic warning tape 12.

[0060] Specifically, the protective robot 2 automatically drives to the vicinity of the stainless steel guardrail at the level crossing using laser map navigation, releases the electromagnet, and the magnetic warning tape 12 is automatically retrieved.

[0061] S600 and AGV trolley 21 return to charging position 102 along the original route and charge, completing the disarmament operation.

[0062] It should be noted that the protective robot 2 will provide audio and visual warnings during disarmament to remind personnel and vehicles to give way.

[0063] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A level crossing safety protection system, characterized in that, Located inside the maintenance depot (100), the level crossing safety protection system includes: The fixing component (1) includes a fixing bracket (11) and a magnetic warning strip (12). The fixing bracket (11) is symmetrically arranged on both sides of the end of the level crossing on the warehouse side, and the magnetic warning strip (12) is arranged on the fixing bracket (11). The protective robot (2) includes an AGV (21), a magnetic suction device (22), and a detection and identification device (23). The AGV (21) is located at a charging position (102) in the maintenance warehouse (100) and can move within the maintenance warehouse (100). The magnetic suction device (22) and the detection and identification device (23) are both located on the AGV (21) and are communicatively connected to the AGV (21). During deployment, the AGV (21) can move the magnetic component (22) from the charging position (102) to the side of the fixed bracket (11) so that the magnetic component (22) is magnetically connected to the magnetic warning tape (12). The AGV (21) can also move the magnetic component (22) to pull the warning tape in the magnetic warning tape (12) along the direction parallel to the track (200) of the level crossing and stop inside the door (101) of the maintenance warehouse (100). When no locomotive is detected in the detection area of ​​the detection and identification device (23), it is determined that the locomotive's entry and exit operation is completed. The detection and identification device (23) sends a disarming signal to the AGV trolley (21). The AGV trolley (21) drives the magnetic suction device (22) back to the side of the fixed bracket (11). The magnetic suction device (22) separates from the magnetic warning tape (12). The AGV trolley (21) returns to the charging position (102) along the original route.

2. The level crossing safety protection system according to claim 1, characterized in that, The protective robot (2) also includes a magnetic bracket (24), which is set on the AGV trolley (21). The magnetic component (22) is set on the magnetic bracket (24) and corresponds one-to-one with the magnetic warning tape (12).

3. The level crossing safety protection system according to claim 1, characterized in that, The protective robot (2) also includes a protective cover (25), which is placed on the AGV (21), the magnetic suction component (22) is placed inside the protective cover (25), and the detection and identification component (23) is placed on the top of the protective cover (25).

4. The level crossing safety protection system according to claim 1, characterized in that, The protective robot (2) also includes a warning device (26), which is installed on the AGV (21). The warning device (26) can provide sound and / or light warnings during the deployment and disarming of the protective robot (2).

5. The level crossing safety protection system according to claim 4, characterized in that, The warning device (26) includes a voice alarm that is capable of issuing a voice warning during the movement of the AGV (21) and while the AGV (21) is stationary inside the door (101) of the maintenance bay (100); and / or, The warning device (26) includes a signal warning light that can emit light warnings during the movement of the AGV (21) and during the time when the AGV (21) is stationed inside the door (101) of the maintenance warehouse (100).

6. The level crossing safety protection system according to claim 1, characterized in that, The level crossing safety protection system also includes a control module (3). The AGV (21), the magnetic chuck (22), and the detection and identification device (23) are all communicatively connected to the control module (3). The control module (3) can control the start, stop, and travel route of the AGV (21). The control module (3) can also control the magnetic connection or release between the magnetic chuck (22) and the magnetic warning strip (12). The control module (3) can also control the detection and identification device (23) to identify whether there is a vehicle in the detection area and receive the identification signal from the detection and identification device (23).

7. The level crossing safety protection system according to claim 6, characterized in that, The detection and identification device (23) can also identify the vehicle number of the locomotive in the detection area, and the control module (3) can receive the vehicle number information identified by the detection and identification device (23).

8. The level crossing safety protection system according to claim 6, characterized in that, The level crossing safety protection system also includes a wireless communication module (4), and the AGV trolley (21), the magnetic suction component (22) and the detection and identification component (23) are respectively connected to the control module (3) through the wireless communication module (4).

9. The level crossing safety protection system according to any one of claims 1-8, characterized in that, The AGV (21) includes a chassis and axles, with a plurality of axles rotatably disposed at the bottom of the chassis to drive the chassis to move.

10. A safety protection and control method for level crossings, characterized in that, The safety protection of the level crossing within the maintenance depot (100) is based on the level crossing safety protection system as described in any one of claims 1-9, and the level crossing safety protection control method includes the following steps: S100. When the locomotive enters or leaves the depot, the protective robot (2) is activated and the deployment process begins. S200, the AGV trolley (21) drives the magnetic suction component (22) from the charging position (102) to the side of the fixed bracket (11), so that the magnetic suction component (22) is magnetically connected to the magnetic warning strip (12); S300, the AGV trolley (21) drives the magnetic suction component (22) to pull the warning tape in the magnetic suction warning tape (12) along the direction parallel to the track (200) of the level crossing and stop inside the door (101) of the maintenance warehouse (100); S400, the detection and identification device (23) continuously identifies whether there is a vehicle in the detection area during the stay of the AGV vehicle (21). When the detection and identification device (23) identifies that there is no vehicle in the detection area, it determines that the vehicle's entry and exit operation is completed and sends a disarming signal to the AGV vehicle (21). S500, the AGV trolley (21) drives the magnetic suction component (22) back to the side of the fixed bracket (11), and the magnetic suction component (22) separates from the magnetic warning strip (12); S600, the AGV (21) returns to the charging position (102) along the original route.

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