Track invasion monitoring system based on inter-train communication

Abstract

The utility model provides a track limit invasion monitoring system based on inter-train communication, which comprises track limit invasion detection devices arranged at the head and the tail of each train and used for detecting track limit invasion information, and each track limit invasion detection device is electrically connected with a control system of the train where the track limit invasion detection device is located and sends the track limit invasion information detected by the track limit invasion detection device to the control system; and the control systems of the adjacent trains on the same track and / or the adjacent tracks are in communication connection with each other, so that track invasion information sharing interaction is carried out. According to the utility model, the adjacent trains can know the track invasion condition in the advancing direction at the fastest speed, collision accidents are avoided, and meanwhile, the track invasion detection device arranged at the tail of the train expands the detection range of the track invasion detection device arranged at the head of the train and the opposite coming train on the rear train and the adjacent track, so that the detection efficiency is improved. The defect that the track detection range of the train in the advancing direction is insufficient is overcome.

Description

Technical Field

[0001] This utility model relates to the field of track encroachment monitoring technology, specifically to a track encroachment monitoring system based on inter-train communication. Background Technology

[0002] Currently, rail transit systems, as an important component of modern urban life, bear enormous passenger volumes and transportation tasks. Their safety and efficiency directly affect smooth traffic flow and the convenience of residents' travel. Among these, the detection of encroachments on the track is a crucial link in ensuring operational safety and reducing the risk of accidents. Technologies such as radar detection, laser scanning, and infrared sensing are integrated into track encroachment detection devices to monitor obstacles on the track in real time, providing early warning information for train operation and effectively preventing collisions.

[0003] However, in urban rail transit, track encroachment detection devices are limited by cost, installation location, and technology, making it impossible to monitor the track completely throughout its entire journey. Furthermore, train departure times are frequent, and the distance between adjacent trains is short. If a track encroachment suddenly occurs between two trains, the following train may not be able to detect it quickly, potentially leading to a collision. Utility Model Content

[0004] In order to overcome the defects in the existing technology, the purpose of this utility model is to provide a track encroachment monitoring system based on inter-train communication.

[0005] To achieve the above-mentioned objectives of this utility model, this utility model provides a track violation monitoring system based on train communication, comprising: track violation detection devices installed at the head and tail of each train for detecting track violation information, wherein each track violation detection device is electrically connected to the control system of its train and sends the track violation information it detects to the control system.

[0006] The control systems of adjacent trains on the same and / or adjacent tracks are interconnected to share and exchange track encroachment information.

[0007] This train-communication-based track violation monitoring system uses track violation detection devices installed at the front and rear of the train to monitor track violation information in real time during train operation. This information is then transmitted to adjacent trains, allowing them to quickly obtain information about track violations in their direction of travel, thus preventing collisions. Simultaneously, the track violation detection device at the rear of the train expands the detection range of the device at the front of the train, which detects both following trains and oncoming trains on adjacent tracks, compensating for the insufficient detection range in the direction of travel.

[0008] Optionally, the detection range of the track encroachment detection device installed at the front of the train covers the monitoring area of ​​the track it is on; the detection range of the track encroachment detection device installed at the rear of the train covers the monitoring area of ​​the track it travels to and from in both directions.

[0009] In this alternative solution, the train only monitors the detection range of its own track in its direction of travel, avoiding the situation where the encroachment of the adjacent track is mistakenly judged as the encroachment of its own track. The track encroachment detection device at the rear of the train can monitor both tracks in both directions, and can provide the latest track encroachment information to the following trains and oncoming trains on adjacent tracks.

[0010] Optionally, the control system of each train is connected to the dispatch center to communicate with the dispatch center and feed back the track violation information collected by its corresponding track violation detection device; the dispatch center makes a violation judgment based on the track violation information it receives and sends the judgment result to the control systems of other trains.

[0011] This optional solution enables the dispatch center to obtain and determine the encroachment status of each track section in a timely manner, and send warnings to other trains, which can make up for the omission of track encroachment information in inter-train communication.

[0012] Optionally, the track encroachment detection device includes one or any combination of an image acquisition module, an ultrasonic radar module, and a thermal imaging module.

[0013] Optionally, the control systems of adjacent trains on the same track and / or adjacent tracks can communicate with each other via DSRC communication modules and / or 5G communication modules; the on-board equipment of the DSRC communication modules is installed on the train and electrically connected to the train's control system.

[0014] Optionally, the control system makes a violation judgment based on the track violation information collected by its corresponding track violation detection device, and sends the judgment result to the control system of an adjacent train that is on the same track and / or an adjacent track.

[0015] This alternative solution directly sends the intrusion judgment result to the adjacent train, reducing the amount of communication data compared to image data, and increasing the communication speed.

[0016] Optionally, the train is also equipped with a positioning module electrically connected to its control system for real-time train positioning. When trains share and interact with each other regarding track encroachment information, they also simultaneously send the positioning information corresponding to the track encroachment information.

[0017] Alternatively, the train may also be equipped with a positioning module electrically connected to its control system. When the train sends track violation information to the dispatch center, it also simultaneously sends the positioning information corresponding to the track violation information.

[0018] This option allows trains receiving track encroachment information and dispatch centers to accurately locate the track segment where the encroachment occurred.

[0019] Optionally, it also includes several data processing modules installed along the track and connected to the dispatch center. The train's control system is wirelessly connected to the data processing modules and sends the track encroachment information it detects to the data processing modules. The data processing modules make encroachment judgments based on the track encroachment information and send the judgment results to the control systems of other trains and / or the dispatch center for communication.

[0020] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0022] Figure 1 This is a schematic diagram illustrating the principle of this utility model;

[0023] Figure 2 This is a schematic diagram of one possible solution of this utility model. Detailed Implementation

[0024] The embodiments of this utility model 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 this utility model, and should not be construed as limiting this utility model.

[0025] In the description of this utility model, unless otherwise specified and limited, it should be noted that the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can refer to mechanical or electrical connections, or internal connections between two components. They can be direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0026] like Figure 1 As shown, this utility model provides a track encroachment monitoring system based on inter-train communication, which can be applied to urban subway rail transit. It mainly includes: a track encroachment detection device installed at the head and tail of each train to detect track encroachment information and a train control system.

[0027] The track violation detection device located at the front of the train is used to detect track violation information in the direction the train is traveling; the track violation detection device located at the rear of the train is used to detect track violation information in the opposite direction the train is traveling. Existing detection modules can be used for the track violation detection devices. This invention does not rely on innovation in the track violation detection device. In this embodiment, the track violation detection device includes one or any combination of an image acquisition module, an ultrasonic radar module, and a thermal imaging module. The image acquisition module may include a visible light camera module and an infrared camera module, and the ultrasonic radar module uses an ultrasonic radar array. The detection range of the track violation detection device can cover the monitoring area of ​​a unidirectional track or the monitoring area of ​​a bidirectional track. In this embodiment, the detection range of the track violation detection device located at the front of the train covers the monitoring area of ​​its own track; the detection range of the track violation detection device located at the rear of the train covers the monitoring area of ​​its bidirectional track. This can be achieved by setting the number and angle of the image acquisition modules and ultrasonic radars, and can be manually adjusted during implementation.

[0028] Each track violation detection device is electrically connected to the control system of its respective train, sending the detected track violation information to the control system. The train's control system can be the one already installed on the train; no additional setup is required. Since installing track violation detection devices is a mature technology, connecting the detection devices to the control system is not difficult for industry professionals, and existing methods can be used. The control systems of adjacent trains on the same and / or adjacent tracks communicate with each other to share track violation information, enabling trains to obtain relevant track violation information in a timely manner. Due to the frequent departures and short distances between adjacent trains in urban subway systems, in this embodiment, the control systems of adjacent trains on the same and / or adjacent tracks can communicate via DSRC communication modules and / or 5G communication modules. The specific setup method can use existing methods, such as V2X vehicle-to-everything (V2X) technology and 5G communication technology.

[0029] To avoid slow transmission speeds due to large image data, the train's control system can determine track violation based on track violation information collected by its onboard track violation detection device and send the result to the control systems of adjacent trains on the same and / or adjacent tracks. This allows adjacent trains to operate safely based on the determination. Furthermore, the train's control system only sends the determination result to the control systems of adjacent trains on the same and / or adjacent tracks when it detects a track violation.

[0030] A positioning module is also installed on the train, which is electrically connected to the train's control system for real-time train positioning. When the control systems of two trains share and exchange track encroachment information, they also synchronously send the corresponding positioning information so that the train receiving the track encroachment information can accurately locate the location of the encroachment and take timely emergency measures. In this embodiment, the positioning module preferably, but not limited to, is a GNSS positioning module.

[0031] In some optional embodiments of this example, the control systems of each train can also communicate with the dispatch center, feeding back track violation information and / or track violation judgment results collected by their corresponding track violation detection devices. The dispatch center can also make violation judgments based on the track violation information it receives. When a track violation occurs, the dispatch center sends the violation judgment result to the control systems of other trains. These other trains can be all trains or trains traveling on the violated track. When a train sends track violation information and / or judgment results to the dispatch center, it also simultaneously sends the corresponding positioning information so that the train driver can accurately locate the point where the track violation occurred.

[0032] In some optional solutions of this embodiment, such as Figure 2 As shown, several data processing modules connected to the dispatch center can also be installed along the track. The train's control system wirelessly connects to the data processing modules, for example, via 5G communication, sending the detected track encroachment information to the data processing modules. The data processing modules then make encroachment judgments based on the track encroachment information and send the judgment results to the control systems of other trains and / or the dispatch center. The data processing modules can be, but are not limited to, using Xilinx's UltraScale+ series chips.

[0033] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0034] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A track encroachment monitoring system based on inter-train communication, characterized in that, include: Track violation detection devices are installed at the front and rear of each train to detect track violation information. The detection range of the track violation detection device at the front of the train covers the monitoring area of ​​the track it is on; the detection range of the track violation detection device at the rear of the train covers the monitoring area of ​​the track it travels to and from. Each of the track violation detection devices is electrically connected to the control system of the train it is on, and sends the track violation information it detects to the control system. The control systems of adjacent trains on the same and / or adjacent tracks are interconnected to share and exchange track encroachment information.

2. The track encroachment monitoring system based on inter-train communication according to claim 1, characterized in that, Each train's control system is connected to the dispatch center and sends back track violation information collected by its corresponding track violation detection device. The dispatch center makes a violation judgment based on the received track violation information and sends the judgment result to the control systems of other trains.

3. The track encroachment monitoring system based on inter-train communication according to claim 1, characterized in that, The track encroachment detection device includes one or any combination of an image acquisition module, an ultrasonic radar module, and a thermal imaging module.

4. The track encroachment monitoring system based on inter-train communication according to claim 1, characterized in that, The control systems of adjacent trains on the same and / or adjacent tracks communicate with each other via DSRC communication modules and / or 5G communication modules; the on-board equipment of the DSRC communication module is installed on the train and is electrically connected to the train's control system.

5. The track encroachment monitoring system based on inter-train communication according to claim 1, characterized in that, The control system makes a violation judgment based on the track violation information collected by its corresponding track violation detection device, and sends the judgment result to the control system of the adjacent train that is on the same track and / or adjacent track.

6. The track encroachment monitoring system based on inter-train communication according to claim 1, characterized in that, The train is also equipped with a positioning module electrically connected to its control system for real-time train positioning. When trains share and interact with each other regarding track encroachment information, they also simultaneously send the positioning information corresponding to the track encroachment information.

7. The track encroachment monitoring system based on inter-train communication according to claim 2, characterized in that, The train is also equipped with a positioning module electrically connected to its control system. When the train sends track violation information to the dispatch center, it also simultaneously sends the corresponding positioning information.

8. The track encroachment monitoring system based on inter-train communication according to claim 1, characterized in that, It also includes several data processing modules installed along the track and connected to the dispatch center. The train's control system is wirelessly connected to the data processing modules and sends the track violation information it detects to the data processing modules. The data processing modules make violation judgments based on the track violation information and send the judgment results to the control systems of other trains and / or the dispatch center for communication.

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