Crossing remote control system and method

Abstract

Disclosed is a crossing remote control system, comprising: a crossing device, a crossing remote control device and a cloud platform, the cloud platform being used for verifying a connection request, and generating a connection response instruction when the verification is successful. The crossing device and the crossing remote control device are used for generating connection information on the basis of the connection response instruction. The cloud platform is used for establishing, on the basis of the connection information, connections with a crossing device and a crossing remote control device that have passed verification. Upon receiving a request information packet sent by a crossing remote control device successfully connected thereto, the cloud platform acquires a video stream captured by a target crossing device on the basis of the request information packet, and sends the video stream to the crossing remote control device. The present invention uses a remote control system exhibiting enhanced timeliness and employing a working mode of cooperative operation to implement unmanned management and control of a crossing, and provides train drivers and central monitoring personnel with the ability to sense a crossing state beyond visual range. The system completely replaces operations performed by crossing personnel, effectively reduces manual operation and management costs, and lowers the labor intensity of workers.

Description

A remote control system and method for a road crossing Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to a road crossing remote control system and method. Background Art

[0002] Currently, existing level crossings on local railways and industrial and mining lines are primarily managed by manual staff with remote control of the level crossing barriers to ensure safe train passage. However, with the continuous improvement of people's living standards, the volume of vehicles at level crossings continues to increase, and the labor intensity of level crossing management has increased. The manual staffing approach is no longer able to meet the current requirements for level crossing control and operation. Furthermore, this reliance on manual monitoring and command is not only inefficient but also susceptible to the influence of the staff on duty, resulting in untimely operation of the barriers and posing a significant safety hazard.

[0003] While there are currently proposals to connect existing level crossings to video surveillance systems using fiber optic cables, enabling remote monitoring or control of the crossings from a central control center, this approach only allows central control personnel to obtain information about the crossing's status, and this information cannot be transmitted to train drivers in a timely and effective manner. This poses a significant safety risk when drivers discover a situation near the crossing and are unable to operate the crossing equipment in a timely manner.

[0004] Summary of the Invention

[0005] The present invention provides a road crossing remote control system and method to achieve safe and accurate remote control of the road crossing.

[0006] According to one aspect of the present invention, a road crossing remote control system is provided, comprising a cloud platform, a plurality of road crossing devices and a plurality of road crossing remote control devices respectively communicating with the cloud platform, wherein the road crossing remote control devices comprise vehicle-mounted devices and monitoring center devices;

[0007] The road crossing device and the road crossing remote control device are used to send a connection request to the cloud platform, wherein the connection request includes a device identifier;

[0008] The cloud platform is used to verify each of the connection requests, generate a connection response instruction when the verification is successful, and send the connection response instruction to the verified level crossing device and the level crossing remote control device;

[0009] The road crossing device and the road crossing remote control device are configured to generate connection information according to the connection response instruction and send the connection information to the cloud platform, wherein the connection information includes a device identifier and a connection mode instruction;

[0010] The cloud platform is used to establish a connection with each road crossing device and road crossing remote control device that has passed verification based on the connection information. When receiving a request information packet sent by a successfully connected road crossing remote control device, the cloud platform obtains the video stream collected by the target road crossing device based on the request information packet, and sends the video stream to the road crossing remote control device, so that the road crossing remote control device can remotely control the target road crossing device based on the video stream.

[0011] According to another aspect of the present invention, a method for remotely controlling a level crossing is provided, comprising:

[0012] Sending a connection request to the cloud platform via the road crossing device and the road crossing remote control device, wherein the connection request includes a device identifier;

[0013] Verifying each of the connection requests through the cloud platform, generating a connection response instruction when the verification is passed, and sending the connection response instruction to the verified level crossing device and the level crossing remote control device;

[0014] Generate connection information according to the connection response instruction by the road crossing device and the road crossing remote control device, and send the connection information to the cloud platform, wherein the connection information includes a device identifier and a connection method instruction;

[0015] A connection is established with each verified crossing device and crossing remote control device based on the connection information through the cloud platform. When a request information packet sent by a successfully connected crossing remote control device is received, the video stream collected by the target crossing device is obtained according to the request information packet, and the video stream is sent to the crossing remote control device, so that the crossing remote control device can remotely control the target crossing device based on the video stream.

[0016] The technical solution of the embodiment of the present invention adopts a highly real-time remote control system and a vehicle-crossing-center collaborative operation mode to realize unmanned control of the crossing, and provides train drivers and center monitoring personnel with beyond-line-of-sight crossing status perception capabilities. It utilizes audio, video, control information, and status information transmission modes to timely control emergencies, completely replacing the operations of crossing personnel. The system can effectively reduce manual operation and management costs, reduce employee labor intensity, and improve the working environment. It not only realizes full automation of the crossing, but also has good real-time performance and high reliability.

[0017] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present invention, nor is it intended to limit the scope of the present invention. Other features of the present invention will become readily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] FIG1 is a schematic structural diagram of a road crossing remote control system provided in accordance with a first embodiment of the present invention;

[0020] FIG2 is a flow chart of a method for remote control of a road crossing according to a second embodiment of the present invention; DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0022] It should be noted that the terms "first," "second," and the like in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the numbers used in this manner are interchangeable where appropriate so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, "including," "having," and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, apparatus, product, or device comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to these processes, methods, products, or devices.

[0023] Example 1

[0024] FIG1 is a schematic diagram of the structure of a road crossing remote control system according to a first embodiment of the present invention. This embodiment is applicable to situations where a road crossing is remotely controlled. As shown in FIG1 , the structure of the road crossing remote control system specifically includes: a cloud platform, a plurality of road crossing devices that communicate with the cloud platform, and a plurality of road crossing remote control devices, wherein the road crossing remote control devices include vehicle-mounted devices and monitoring center devices;

[0025] Among them, the level crossing equipment and the level crossing remote control equipment are used to send connection requests to the cloud platform, wherein the connection requests include device identification; the cloud platform is used to verify each connection request, and generate a connection response instruction when the verification is passed, and send the connection response instruction to the level crossing equipment and level crossing remote control equipment that have passed the verification; the level crossing equipment and the level crossing remote control equipment are used to generate connection information according to the connection response instruction, and send the connection information to the cloud platform, wherein the connection information includes device identification and connection mode instruction; the cloud platform is used to establish a connection with each level crossing equipment and level crossing remote control equipment that have passed the verification according to the connection information, and when receiving a request information packet sent by the level crossing remote control equipment that has successfully connected, obtain the video stream collected by the target level crossing equipment according to the request information packet, and send the video stream to the level crossing remote control equipment, so that the level crossing remote control equipment can remotely control the target level crossing equipment based on the video stream. Since trains may pass through multiple level crossings during their journey, and each level crossing may have multiple trains passing through it, the level crossing remote control system typically includes multiple level crossing devices and level crossing remote control devices. This embodiment does not limit the specific number of level crossing devices and level crossing remote control devices; users can define this based on the actual road conditions. Furthermore, the level crossings in this embodiment are not limited to railway scenarios, but can also be used in scenarios where transport vehicles pass through, such as factory and mine trunk lines. Therefore, this embodiment does not limit the specific types of scenarios involved in level crossings.

[0026] Specifically, in this embodiment, positioning can be performed through Beidou, and train location information can be obtained in real time. The system can communicate data through the public network cloud platform according to on-site requirements, which is flexible and convenient, while ensuring stable and reliable transmission of control signals. The driver can obtain the distance to the crossing ahead and the crossing video in real time through the on-board equipment, thereby realizing remote control of the crossing barrier machine. At the same time, the monitoring center equipment can also obtain the video of each crossing, so when the central control personnel find that there is a dangerous situation at the crossing, they can also remotely control the crossing. In addition, the data of this embodiment are all interacted through the public network cloud platform. The cloud platform is responsible for establishing and maintaining communication links with the on-board equipment, crossing equipment and monitoring center equipment, is responsible for address mapping, is responsible for the corresponding push of video streams and information streams, and is responsible for verifying communication requests.

[0027] Optionally, the cloud platform is also used to add the identifications of successfully connected level crossing devices and level crossing remote control devices to the link maintenance table, and monitor the connection status of each device in the link maintenance table.

[0028] Specifically, in this embodiment, the cloud platform can be used as the server, and the road crossing equipment, vehicle-mounted equipment, and monitoring center equipment as clients. Each server can exchange information through the cloud platform, and before the server and each client interact, they will each be initialized, that is, complete the software settings and parameter configuration and other related operations. Of course, this embodiment is only an example and does not limit the specific initialization process of the server and client. When the initialization operation is completed, each road crossing equipment, vehicle-mounted equipment, and monitoring center equipment in the system as a client will send a connection request to the cloud platform as the server. After the cloud platform receives the connection request from each device, since the connection request contains a device identifier, only devices that have previously registered with the cloud platform can communicate with the cloud platform. Therefore, the cloud platform will perform cryptographic verification on the device identifier in the connection request of each device, that is, determine whether the client sending the connection request is a previously registered legitimate device. If it is verified to be a legitimate device, it will generate a connection response instruction, such as a register instruction, and feedback it to the client that passed the verification.

[0029] When a device receives a connection response instruction from the cloud platform, it generates connection information. This information includes a device identifier and a connection method instruction. Upon receiving the connection information, the cloud platform uses the connection method contained in the connection method instruction to establish a connection with the verified device. If the connection is successful, the cloud platform also adds the identifier of the successfully connected device to a link maintenance table and monitors the connection status of each device in the link maintenance table in real time. On the client side, if the connection fails, the connection information is resent; if the connection is successful, a connection status assessment is initiated. If the connection is normal, an instruction is sent to the cloud platform. If the connection is disconnected, the link is reset and the connection information is resent.

[0030] In a specific implementation, the monitoring scheme adopted by the cloud platform is usually to send a timestamp to each device in the link maintenance table at fixed intervals. For example, the cloud platform sends a timestamp "11:4:10" to the vehicle-mounted device 1 at 11:4:10. After the vehicle-mounted device 1 receives the timestamp 2 seconds later, it will feedback the timestamp intact to the cloud platform, and the cloud platform receives the timestamp after 3 seconds. Therefore, it can be obtained that the cloud platform receives the timestamp feedback from the vehicle-mounted device at a time of 11:4:15. Since the cloud platform has recorded the timestamps sent to each device, when the timestamp "11:4:10" is received at 11:4:15, it can be found through query that the timestamp is sent to the vehicle-mounted device 1. Therefore, the difference between the reception time and the timestamp of the vehicle-mounted device 1 is calculated to be 5 seconds. Since the preset threshold is 1 second, it can be seen that when the communication time between the cloud platform and the vehicle-mounted device 1 is significantly greater than the preset threshold, it means that there is a failure in the network communication between the cloud platform and the vehicle-mounted device 1, and the vehicle-mounted device 1 is treated as an abnormal connection device, and the identification of the vehicle-mounted device 1 is deleted from the link maintenance table. In addition, when it is determined that the difference between the reception time and the timestamp of the vehicle-mounted device 1 is less than 1 second, it means that the connection and communication between the vehicle-mounted device 1 and the cloud platform is normal, and the vehicle-mounted device 1 is treated as a normal connection device. Of course, this embodiment only uses the cloud platform to monitor the connection status of the vehicle-mounted device 1 as an example. The platform's detection process for the connection status of other devices is roughly the same and will not be repeated in this embodiment. Therefore, in this implementation, a timestamp is sent to each device in the current link maintenance table. The client then transmits this timestamp intact. Using the communication time difference, the link status can be dynamically monitored. If the timeout threshold is exceeded, the device's link information is deleted from the link maintenance table. If a communication link failure occurs on the client, the current link is reset and a new connection request is sent to the cloud platform to reconnect.

[0031] Optionally, the road crossing remote control device is further configured to generate a request data packet in a specified format according to the video acquisition instruction when receiving a video acquisition instruction from the driver or the central control personnel.

[0032] Optionally, the request information packet includes an address frame consisting of multiple destination bits and sending bits, and the destination bit corresponding to the device sending the request information packet is 1, and the sending bit corresponding to the target crossing device requesting to obtain the video is 1.

[0033] Specifically, in this embodiment, when all devices are properly connected to the cloud platform, upon receiving a video capture instruction from a driver or central control personnel, a road crossing remote control device, such as an on-board device or a monitoring center device, will generate a request data packet in a specified format based on the video capture instruction. For example, if the driver of on-board device 1 wishes to view traffic information around road crossing device 1, they will send a video capture instruction "Request to view traffic information around road crossing device 1" to on-board device 1, and on-board device 1 will generate a request data packet based on the video capture instruction. Among them, the information header in the request data is set to a unified address frame, and specifically can be a 255-bit address frame consisting of a destination bit and a send bit, and each address frame bit corresponds to a device, and can be set to 1 to indicate the selection of the specified device. For example, since the request data packet is generated by the vehicle-mounted device 1 and sent to the cloud platform, the destination bit corresponding to the vehicle-mounted device 1 is set to 1, and the vehicle-mounted device 1 specifically wants to obtain the traffic video information of the road crossing device 1, so the send bit corresponding to the road crossing device 1 will be set to 1, and the address frame bits corresponding to other devices will continue to remain 0. Therefore, after obtaining the request data packet, the cloud platform can quickly obtain who sent the address frame and specifically whose video information is to be obtained, and send a video acquisition instruction to the corresponding road crossing device 1. After obtaining the instruction, the road crossing device 1 will feed back the current traffic situation video around the road crossing to the vehicle-mounted device 1 through the cloud platform in real time. Of course, in this embodiment, only the example of the vehicle-mounted device 1 obtaining the video of the crossing device 1 is used for illustration. Usually, there will be a situation where multiple vehicle-mounted devices or monitoring center devices need to obtain the video of the same crossing device at the same time. The same video information needs to be sent to different devices, and the length of the information packet needs to be fixed. Therefore, this method can be used to send it to multiple devices at the same time, which can reduce the number of transmissions and the total amount of data sent, thereby reducing time overhead and improving transmission efficiency.

[0034] Optionally, the vehicle-mounted device is used to display the received video stream of the target crossing device to the driver, and receive a first control instruction input by the driver for the video stream, wherein the first control instruction is input when the driver determines that there is a safety hazard in driving at the crossing; generate a first control information packet according to the first control instruction, and send the first control information packet to the target crossing device through the cloud platform, so that the target crossing device controls the working status of the barrier according to the first control information packet, wherein the working status includes on or off.

[0035] Optionally, the monitoring center device is used to display the received video stream of the target crossing device to the central control personnel, and receive a second control instruction input by the central control personnel for the video stream, wherein the second control instruction is input when the central control personnel determines that there is a safety hazard in driving at the crossing; generate a second control information packet according to the second control instruction, and send the second control information packet to the target crossing device through the cloud platform, so that the target crossing device controls the working status of the barrier machine according to the second control information packet, wherein the working status includes on or off.

[0036] Optionally, the cloud platform communicates with the crossing equipment and the crossing remote control equipment using the Transmission Control Protocol TCP.

[0037] Specifically, in this implementation, the driver can control the target crossing equipment via the onboard device, while the central control personnel can also control the target crossing equipment via the monitoring center equipment. This allows the driver and central control personnel to obtain the target crossing status beyond visual range, and enables coordinated control of the target crossing equipment by vehicle and ground equipment, thereby improving on-site driving safety. Furthermore, this implementation utilizes a forwarding destination address resolution method based on hot codes, which improves resolution speed. Simultaneously, a dynamic link maintenance table is established, and based on network communication quality assessment, low-quality links are automatically reconnected. This "vehicle-ground-cloud" remote control communication strategy significantly reduces the amount of duplicate data forwarding, reduces network bandwidth load, and improves the real-time and reliability of the system's remote control.

[0038] This application adopts a highly real-time remote control system and a vehicle-crossing-center collaborative operation mode to achieve unmanned control of the crossing, and provides train drivers and center monitoring personnel with beyond-line-of-sight crossing status perception capabilities. It uses audio, video, control information, and status information transmission modes to timely control emergencies, completely replacing the operations of crossing personnel. The system can effectively reduce manual operation and management costs, reduce employee labor intensity, and improve the working environment. It not only realizes full automation of the crossing, but also has good real-time performance and high reliability.

[0039] Example 2

[0040] FIG2 is a flow chart of a road crossing remote control method provided in a second embodiment of the present invention. This embodiment is applicable to the case of remotely controlling road crossing equipment. The method can be executed by the road crossing remote control system of the above embodiment. As shown in FIG2 , the method includes:

[0041] Step S101: Send a connection request to the cloud platform through the road crossing equipment and the road crossing remote control device.

[0042] In this embodiment, positioning can be performed through Beidou, and the train position information can be obtained in real time. The system can communicate data through the public network cloud platform according to on-site requirements, which is flexible and convenient, while ensuring stable and reliable transmission of control signals. The driver can obtain the distance to the crossing ahead and the crossing video in real time through the on-board equipment, thereby realizing remote control of the crossing barrier machine. At the same time, the monitoring center equipment can also obtain the video of each crossing, so when the central control personnel find that there is a dangerous situation at the crossing, they can also remotely control the crossing. In addition, the data of this embodiment are all interacted through the public network cloud platform. The cloud platform is responsible for establishing and maintaining communication links with the on-board equipment, the crossing equipment and the monitoring center equipment, is responsible for address mapping, is responsible for the corresponding push of video streams and information streams, and is responsible for verifying communication requests.

[0043] Specifically, in this embodiment, the cloud platform can serve as the server, and the road crossing equipment, vehicle-mounted equipment, and monitoring center equipment as clients. Each server can exchange information through the cloud platform, and before interacting, the server and each client will each undergo initialization, completing software setup and parameter configuration, among other related operations. Of course, this embodiment is merely an example and does not limit the specific initialization process for the server and client. Once the initialization operation is complete, each road crossing equipment, vehicle-mounted equipment, and monitoring center equipment in the system, acting as a client, will send a connection request to the cloud platform, acting as the server, where the connection request includes a device identifier.

[0044] Step S102: Verify each connection request through the cloud platform, generate a connection response instruction when the verification is passed, and send the connection response instruction to the verified crossing equipment and crossing remote control equipment.

[0045] Among them, after the cloud platform receives the connection request from each device, since the connection request contains the device identification, only devices that have been previously registered with the cloud platform can communicate and connect with the cloud platform. Therefore, the cloud platform will perform encryption verification on the device identification in the connection request of each device, that is, determine whether the client sending the connection request is a legal device that has been registered before. If it is verified to be a legal device, a connection response instruction will be generated and fed back to the verified client.

[0046] Step S103: Generate connection information through the road crossing equipment and the road crossing remote control device according to the connection response instruction, and send the connection information to the cloud platform.

[0047] Among them, when the device receives the connection response instruction sent by the cloud platform, it will generate connection information, and the connection information includes the device identification and connection method instruction, so that the cloud platform can use the connection method contained in the connection method instruction to establish a connection with the verified device after receiving the connection information.

[0048] Step S104: Establish a connection with each road crossing device and road crossing remote control device that has passed verification based on the connection information through the cloud platform. When a request information packet sent by the road crossing remote control device that has successfully connected is received, obtain the video stream collected by the target road crossing device based on the request information packet, and send the video stream to the road crossing remote control device, so that the road crossing remote control device can remotely control the target road crossing device based on the video stream.

[0049] Among them, if it is determined that the connection is successful, the cloud platform will also add the identifier of the successfully connected device to the link maintenance table, and will monitor the connection status of each device in the link maintenance table in real time. The monitoring solution adopted by the cloud platform is usually to send a timestamp to each device in the link maintenance table at fixed intervals. For example, the cloud platform sends a timestamp "11:4:10" to the vehicle-mounted device 1 at 11:4:10. After receiving the timestamp 2 seconds later, the vehicle-mounted device 1 will feedback the timestamp intact to the cloud platform. The cloud platform receives the timestamp 3 seconds later, so the cloud platform receives the timestamp feedback from the vehicle-mounted device at 11:4:15. Since the cloud platform has recorded the timestamps sent to each device, when the timestamp "11:4:10" is received at 11:4:15, it can be found through query that the timestamp is sent to the vehicle-mounted device 1. Therefore, the difference between the reception time and the timestamp of the vehicle-mounted device 1 is calculated to be 5 seconds. Since the preset threshold is 1 second, it can be seen that when the communication time between the cloud platform and the vehicle-mounted device 1 is significantly greater than the preset threshold, it means that there is a failure in the network communication between the cloud platform and the vehicle-mounted device 1, and the vehicle-mounted device 1 is treated as an abnormal connection device, and the identification of the vehicle-mounted device 1 is deleted from the link maintenance table. In addition, when it is determined that the difference between the reception time and the timestamp of the vehicle-mounted device 1 is less than 1 second, it means that the connection and communication between the vehicle-mounted device 1 and the cloud platform is normal, and the vehicle-mounted device 1 is treated as a normal connection device. Of course, this embodiment only uses the cloud platform to monitor the connection status of the vehicle-mounted device 1 as an example. The platform's detection process for the connection status of other devices is roughly the same and will not be repeated in this embodiment. Therefore, in this implementation, a timestamp is sent to each device in the current link maintenance table. The client then transmits this timestamp intact. Using the communication time difference, the link status can be dynamically monitored. If the timeout threshold is exceeded, the device's link information is deleted from the link maintenance table. If a communication link failure occurs on the client, the current link is reset and a new connection request is sent to the cloud platform to reconnect.

[0050] Specifically, in this embodiment, when all devices are properly connected to the cloud platform, upon receiving a video capture instruction from a driver or central control personnel, a road crossing remote control device, such as an on-board device or a monitoring center device, will generate a request data packet in a specified format based on the video capture instruction. For example, if the driver of on-board device 1 wishes to view traffic information around road crossing device 1, they will send a video capture instruction "Request to view traffic information around road crossing device 1" to on-board device 1, and on-board device 1 will generate a request data packet based on the video capture instruction. Among them, the information header in the request data is set to a unified address frame, and specifically can be a 255-bit address frame consisting of a destination bit and a send bit, and each address frame bit corresponds to a device, and can be set to 1 to indicate the selection of the specified device. For example, since the request data packet is generated by the vehicle-mounted device 1 and sent to the cloud platform, the destination bit corresponding to the vehicle-mounted device 1 is set to 1, and the vehicle-mounted device 1 specifically wants to obtain the traffic video information of the road crossing device 1, so the send bit corresponding to the road crossing device 1 will be set to 1, and the address frame bits corresponding to other devices will continue to remain 0. Therefore, after obtaining the request data packet, the cloud platform can quickly obtain who sent the address frame and specifically whose video information is to be obtained, and send a video acquisition instruction to the corresponding road crossing device 1. After obtaining the instruction, the road crossing device 1 will feed back the current traffic situation video around the road crossing to the vehicle-mounted device 1 through the cloud platform in real time. Of course, in this embodiment, only the example of the vehicle-mounted device 1 obtaining the video of the crossing device 1 is used for illustration. Usually, there will be a situation where multiple vehicle-mounted devices or monitoring center devices need to obtain the video of the same crossing device at the same time. The same video information needs to be sent to different devices, and the length of the information packet needs to be fixed. Therefore, this method can be used to send it to multiple devices at the same time, which can reduce the number of transmissions and the total amount of data sent, thereby reducing time overhead and improving transmission efficiency.

[0051] Specifically, in this embodiment, the driver can control the target crossing equipment through the vehicle-mounted equipment, and the central control personnel can also control the target crossing equipment through the monitoring center equipment, thereby enabling the driver and the central control personnel to obtain the target crossing status beyond the visual range, and realize the coordinated control of the target crossing equipment by the vehicle and ground equipment, thereby improving the driving safety on site.

[0052] This application adopts a highly real-time remote control system and a vehicle-crossing-center collaborative operation mode to achieve unmanned control of the crossing, and provides train drivers and center monitoring personnel with beyond-line-of-sight crossing status perception capabilities. It uses audio, video, control information, and status information transmission modes to timely control emergencies, completely replacing the operations of crossing personnel. The system can effectively reduce manual operation and management costs, reduce employee labor intensity, and improve the working environment. It not only realizes full automation of the crossing, but also has good real-time performance and high reliability.

[0053] It should be understood that the various forms of the processes shown above can be used to reorder, add, or delete steps. For example, the steps described in the present invention can be performed in parallel, sequentially, or in a different order, as long as the desired results of the technical solution of the present invention can be achieved. This is not limited herein.

[0054] The above specific embodiments do not limit the scope of protection of the present invention. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions may be made based on design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention are intended to be included within the scope of protection of the present invention.

Claims

1. A road crossing remote control system, characterized in that: It includes a cloud platform, a plurality of road crossing devices and a plurality of road crossing remote control devices that communicate with the cloud platform respectively, wherein the road crossing remote control devices include vehicle-mounted devices and monitoring center devices; The road crossing device and the road crossing remote control device are used to send a connection request to the cloud platform, wherein the connection request includes a device identifier; The cloud platform is used to verify each of the connection requests, generate a connection response instruction when the verification is successful, and send the connection response instruction to the verified level crossing device and the level crossing remote control device; The road crossing device and the road crossing remote control device are configured to generate connection information according to the connection response instruction and send the connection information to the cloud platform, wherein the connection information includes a device identifier and a connection mode instruction; The cloud platform is used to establish a connection with each road crossing device and road crossing remote control device that has passed verification based on the connection information. When receiving a request information packet sent by a successfully connected road crossing remote control device, the cloud platform obtains the video stream collected by the target road crossing device based on the request information packet, and sends the video stream to the road crossing remote control device, so that the road crossing remote control device can remotely control the target road crossing device based on the video stream.

2. The system according to claim 1, wherein: The cloud platform is further used to add the identifiers of the successfully connected level crossing devices and level crossing remote control devices to a link maintenance table, and to monitor the connection status of each device in the link maintenance table.

3. The system according to claim 2, characterized in that The cloud platform is configured to send a timestamp to each device in the link maintenance table, and determine a receiving time of the timestamp fed back by each device; The difference between the receiving time and the timestamp of each device is calculated, and the device with a difference greater than a preset threshold is regarded as a connection abnormal device, and the connection abnormal device is deleted from the link maintenance table.

4. The system according to claim 1, wherein: The road crossing remote control device is further configured to generate a request data packet in a specified format according to a video acquisition instruction received from a driver or a central control personnel.

5. The system according to claim 4, characterized in that The request information packet includes an address frame composed of multiple destination bits and sending bits, and the destination position 1 corresponds to the device sending the request information packet, and the sending position 1 corresponds to the target road crossing device requesting to obtain the video.

6. The system according to claim 4, characterized in that The vehicle-mounted device is configured to display the received video stream of the target road crossing device to the driver and receive a first control instruction input by the driver in response to the video stream, wherein the first control instruction is input when the driver determines that there is a potential safety hazard at the road crossing; A first control information packet is generated according to the first control instruction, and the first control information packet is sent to the target crossing device through the cloud platform, so that the target crossing device controls the working state of the barrier according to the first control information packet, wherein the working state includes opening or closing.

7. The system according to claim 4, wherein: The monitoring center device is configured to display the received video stream of the target road crossing device to the central control personnel and receive a second control instruction input by the central control personnel in response to the video stream, wherein the second control instruction is input when the central control personnel determines that there is a potential safety hazard at the road crossing; A second control information packet is generated according to the second control instruction, and the second control information packet is sent to the target crossing device through the cloud platform, so that the target crossing device controls the working state of the barrier according to the second control information packet, wherein the working state includes opening or closing.

8. The system according to claim 1, wherein: The cloud platform communicates with the road crossing equipment and the road crossing remote control equipment using the Transmission Control Protocol TCP.

9. A remote control method for a road crossing, characterized in that: The level crossing remote control system according to any one of claims 1 to 8 above comprises: Sending a connection request to the cloud platform via the road crossing device and the road crossing remote control device, wherein the connection request includes a device identifier; Verifying each of the connection requests through the cloud platform, generating a connection response instruction when the verification is passed, and sending the connection response instruction to the verified level crossing device and the level crossing remote control device; Generate connection information according to the connection response instruction by the road crossing device and the road crossing remote control device, and send the connection information to the cloud platform, wherein the connection information includes a device identifier and a connection method instruction; A connection is established with each verified crossing device and crossing remote control device based on the connection information through the cloud platform. When a request information packet sent by a successfully connected crossing remote control device is received, the video stream collected by the target crossing device is obtained according to the request information packet, and the video stream is sent to the crossing remote control device, so that the crossing remote control device can remotely control the target crossing device based on the video stream.

10. The method according to claim 9, characterized in that After establishing a connection with each verified crossing device and crossing remote control device through the cloud platform according to the connection information, it also includes: adding the identification of the successfully connected crossing device and crossing remote control device to the link maintenance table, and monitoring the connection status of each device in the link maintenance table.

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