Rail transit train multi-system linkage method

Abstract

The embodiment of the present disclosure provides a rail transit train multi-system linkage method, which comprises the following steps: in the case that an alarm system in the train triggers an alarm, a passenger information system (PIS) sends an alarm signal to a target receiving system according to a current driving mode; the alarm system is a passenger alarm device (PECU) and / or a train control and management system (TCMS), and the target receiving system is a driver control room system and / or a subway control center (OCC); and the target receiving system carries out voice linkage and / or video linkage with the train according to the alarm signal. The embodiment of the present disclosure can realize information display and control in various application scenarios, and improves the passenger service quality and operation efficiency of the unmanned subway train.

Description

Technical Field

[0001] This disclosure relates to the field of rail transit technology, and in particular to a method for multi-system linkage of rail transit trains. Background Technology

[0002] Currently, driverless trains are being used more and more widely in the rail transit industry. As a terminal system for serving passengers, the Passenger Information System (PIS) needs to consider more emergency application scenarios when there is no driver, so that train operators can remotely monitor the train and provide passengers with a communication channel with the Metro Control Center (OCC) and display service information in various emergency situations. Summary of the Invention

[0003] This disclosure provides a method for multi-system linkage in rail transit trains, the method comprising:

[0004] When the alarm system inside the train is triggered, the Passenger Information System (PIS) sends the alarm signal to the target receiving system according to the current driving mode; the alarm system is the Passenger Alarm Device (PECU) and / or the Train Control and Management System (TCMS), and the target receiving system is the Driver Control Room System and / or the Metro Control Center (OCC).

[0005] The target receiving system interacts with the train via voice and / or video based on the alarm signal.

[0006] In some embodiments, when the alarm system is the PECU, the alarm system inside the train triggers an alarm, including:

[0007] The PECU is activated by a passenger or automatically activated under a first preset scenario; wherein the first preset scenario includes at least one of the following scenarios: emergency door unlocking, door status loss, emergency door unlocking device activation, and emergency door status loss.

[0008] In some embodiments, the PIS sends an alarm signal to a target receiving system according to the current driving mode, including:

[0009] The PIS determines the current driving mode;

[0010] If the current driving mode is manned, the PIS will send the alarm signal to the driver control room system;

[0011] If the current driving mode is autonomous driving, the PIS will send the alarm signal to the OCC.

[0012] In some embodiments, when the current driving mode is autonomous driving, the method further includes:

[0013] Determine if the driver's cab cover is open;

[0014] If the driver's cab cover is opened, the PIS will simultaneously send the alarm signal to the driver's control room system and the OCC.

[0015] If the driver's cab cover is not opened, the PIS will only send the alarm signal to the OCC.

[0016] In some embodiments, the driver control room system includes a driver's cab broadcast control unit (DACU), a driver's display unit (DDU), and a monitoring screen. When the target receiving system is the driver control room system, the target receiving system performs voice and video linkage with the train based on the alarm signal, including:

[0017] After the PIS sends the alarm signal to the driver control room system, the DDU alarms, the DDU displays the alarm location, the monitoring screen displays the monitoring image at the alarm location, or the camera image of the PECU;

[0018] After the DAU is turned on, a communication connection is established with the PECU;

[0019] After the communication ends, the PECU is remotely reset, and the monitoring screen returns to its initial state.

[0020] In some embodiments, if the PIS sends a new alarm signal to the driver control room system during the communication connection between the DDU and the PECU, the new alarm signal is displayed on the monitoring screen until the communication connection ends. Based on the new alarm information, the DDU alarms, the DDU displays the alarm location, the monitoring screen displays the monitoring screen at the alarm location, or the camera footage from the PECU.

[0021] If the PIS sends multiple alarm messages to the driver control room system at the same time, the multiple alarm messages will be displayed on the monitoring screen so that the driver control personnel can select one to answer.

[0022] If the DAU is not activated within a preset time after the PIS sends the alarm signal to the driver control room system, the PIS will send the alarm signal to the OCC.

[0023] In some embodiments, when the target receiving system is the OCC, the target receiving system performs voice and video linkage with the train based on the alarm signal, including:

[0024] After the PIS sends the alarm signal to the OCC, if the OCC is activated, a communication connection is established with the PECU, and the OCC selectively retrieves the monitoring screen at the alarm location or the camera screen of the PECU.

[0025] After the communication ends, the PECU is remotely reset;

[0026] If, during the communication connection between the OCC and the PECU, the PIS sends a new alarm signal to the OCC, the signal will be queued and waited until the communication connection ends.

[0027] In some embodiments, when the alarm system is the TCMS, the alarm system in the train triggers an alarm, including: when the TCMS detects a second preset scenario, sending a second alarm signal to the PIS; wherein the second preset scenario includes at least one of the following scenarios: fire extinguisher in the train is activated, driver's cab cover is activated and opened, electrical cabinet door is opened, emergency door unlocking device is opened, pantograph malfunction, passenger emergency alarm device is triggered, door alignment isolation, door obstacle detection is activated, door status is lost, escape door unlocking device is activated and triggered, escape door closed status is lost, fire inside the train, emergency hammer is removed, emergency stop button outside the driver's cab is triggered;

[0028] Accordingly, the PIS sends an alarm signal to the target receiving system according to the current driving mode, including:

[0029] The PIS sends the alarm signal to the target receiving system based on the second alarm signal.

[0030] In some embodiments, the target receiving system performs voice and / or video linkage with the train based on the alarm signal, including:

[0031] The PIS triggers the linkage of the monitoring video inside the train, sending the monitoring screen corresponding to the second preset scene to the target receiving system;

[0032] The target receiving system selectively retrieves or displays the monitoring screen based on the alarm signal.

[0033] In some embodiments, the method further includes:

[0034] The PIS determines the number of the second preset scenarios corresponding to the second alarm signal;

[0035] If the number of the second preset scenarios is one, the PIS triggers the monitoring video linkage inside the train and sends the monitoring screen corresponding to the second preset scenario to the target receiving system;

[0036] If there are multiple second preset scenarios, the PIS determines the second preset scenario with the highest priority as the target preset scenario according to the preset priority order, and triggers the monitoring video linkage in the train to send the monitoring screen corresponding to the target preset scenario to the target receiving system.

[0037] In some embodiments, the method further includes:

[0038] If the train has a positioning isolation, the TCMS will send the position information of the isolated door to the PIS;

[0039] The PIS sends the location information to the dynamic map on the train.

[0040] In the area corresponding to the isolated door, the dynamic map displays the fault information of the isolated door, and a broadcast reminder is played in the passenger compartment corresponding to the location information.

[0041] This disclosure provides a multi-system linkage method for rail transit trains. The method includes: when an alarm system inside the train triggers an alarm, the PIS (Pulse Induction System) sends an alarm signal to a target receiving system based on the current driving mode; the alarm system is a PECU (Power Control Unit) and / or TCMS (Traffic Control System), and the target receiving system is a driver control room system and / or OCC (Operational Control Center); the target receiving system engages in voice and / or video linkage with the train based on the alarm signal. In this way, under different scenarios, by combining the current alarm signal and the train's driving mode, several of the PIS, PECU, TCMS, driver control room system, and OCC can be linked via voice and / or video, enabling driver and / or OCC personnel to handle train alarm information promptly and conveniently, achieving information display and control in various application scenarios, and improving passenger service quality and operational efficiency of driverless metro trains. Attached Figure Description

[0042] Figure 1 A flowchart illustrating the multi-system linkage method for rail transit trains provided in this embodiment of the present disclosure;

[0043] Figure 2 This is a block diagram illustrating the specific implementation logic of a passenger alarm system provided in this embodiment of the disclosure.

[0044] Figure 3 This is a logic block diagram illustrating a specific implementation of CCTV video linkage provided in the embodiments of this disclosure;

[0045] Figure 4 This is a logic block diagram illustrating the specific implementation of dynamic map and door linkage in this embodiment of the present disclosure.

[0046] Figure 5 An embodiment of the present disclosure provides a rail transit train system. Detailed Implementation

[0047] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the disclosure. Furthermore, it should be noted that, for ease of description, only the parts relevant to the disclosure are shown in the accompanying drawings.

[0048] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing embodiments of this disclosure only and is not intended to be limiting of this disclosure.

[0049] In the following description, references are made to “some embodiments,” which describe a subset of all possible embodiments. However, it is understood that “some embodiments” may be the same subset or different subsets of all possible embodiments and may be combined with each other without conflict.

[0050] It should be noted that the terms "first, second, third" used in the embodiments of this disclosure are merely to distinguish similar objects and do not represent a specific ordering of objects. It is understood that "first, second, third" can be interchanged in a specific order or sequence where permitted, so that the embodiments of this disclosure described herein can be implemented in an order other than that illustrated or described herein.

[0051] Before providing a further detailed description of the embodiments of this disclosure, the nouns and terms used in these embodiments will be explained. The nouns and terms used in these embodiments are subject to the following interpretations:

[0052] Passenger Information System (PIS);

[0053] Operation Control Center (OCC) of the subway;

[0054] Train Control and Management System (TCMS);

[0055] Passenger Emergency Call Unit (PECU) (also known as passenger alarm device);

[0056] Closed-Circuit Television (CCTV) system;

[0057] Driver's Cab Broadcast Control Box (DACU);

[0058] Driver Display Unit (DDU) (also known as driver display);

[0059] Network Video Recorder (NVR).

[0060] The subway communication system covers onboard services including PIS, TCMS, PECU, CCTV system, trunking dispatch, and train IoT device sensing.

[0061] PIS (Personal Information System) utilizes network digital multimedia technology and advanced information broadcasting methods to provide information services. PIS displays are placed on platforms, concourses, and trains at each station, allowing passengers to stay informed about train operation status and precautions, ensuring a smooth waiting, boarding, and transfer process. Under normal circumstances, PIS provides real-time multimedia information such as train schedules and travel guidance; in case of fire or traffic congestion, it provides emergency evacuation information.

[0062] TCMS not only provides various real-time control signals to the train's subsystems to control the train, but also collects, records, and displays the operating status and fault information of the train's main equipment. In this way, TCMS can provide the driver with accurate and systematic information and data for vehicle maintenance.

[0063] The CCTV system is installed on subway lines to enhance subway operation and management, as well as to handle emergencies. It meets the monitoring needs of the control center for dispatching and surveillance, station duty, equipment management, power dispatching, and emergency management, and provides a basic platform for station security and crime prevention.

[0064] The subway emergency alarm system relies on a PIS (Pulse Information System) and alarm devices, but it lacks integration with the TCMS (Traffic Control System) and CCTV systems, making it unable to automatically acquire surveillance video of the accident scene and the person reporting the alarm. In emergencies, the driver must manually review the surveillance video or communicate with on-site personnel via microphone. Furthermore, when the subway is driverless, alarm messages sent to the driver's cab go unanswered, preventing staff from promptly understanding the situation. Additionally, the system cannot coordinate emergency responses when multiple alarm scenarios occur on the train.

[0065] Based on this, this disclosure provides a multi-system linkage method for rail transit trains. The method includes: when an alarm system inside the train triggers an alarm, the PIS sends an alarm signal to a target receiving system according to the current driving mode; the alarm system is a PECU and / or TCMS, and the target receiving system is a driver control room system and / or OCC; the target receiving system engages in voice and / or video linkage with the train based on the alarm signal. This disclosure transmits the alarm signal to the driver control room system and / or OCC via the PIS, enabling the driver control room system and / or OCC to engage in voice and / or video linkage with the train. Here, the alarm signal is sent to the driver control room system and / or OCC in conjunction with the driving mode, thereby linking several of the PIS, PECU, TCMS, driver control room system, and OCC in different scenarios. This achieves information display and control in various application scenarios, enabling driver and / or OCC personnel to handle train alarm information promptly and conveniently, achieving efficient handling of emergencies, and improving passenger service quality and operational efficiency of driverless trains.

[0066] The embodiments of this disclosure will now be described in detail with reference to the accompanying drawings.

[0067] In one embodiment of this disclosure, see [link to embodiment]. Figure 1 This illustration shows a flowchart of a multi-system linkage method for rail transit trains provided in an embodiment of this disclosure. Figure 1 As shown, the method may include:

[0068] S101: When the alarm system inside the train triggers an alarm, the PIS sends an alarm signal to the target receiving system according to the current driving mode; the alarm system is PECU and / or TCMS, and the target receiving system is the driver control room system and / or OCC;

[0069] S102: The target receiving system communicates with the train via voice and / or video based on the alarm signal.

[0070] It should be noted that the embodiments disclosed herein provide a multi-system linkage method for rail transit trains. In different scenarios, alarms may be triggered by passengers or other emergencies, requiring staff to respond promptly to these alarm messages to ensure passenger safety and the normal operation of the train. This method integrates several systems, including PIS, PECU, TCMS, driver control room system, and OCC, with voice and / or video linkage. This allows staff in the driver's cab or OCC to view the specific situation at the alarm location in real time and conduct voice communication with passengers to determine the specific alarm details.

[0071] Here, alarm information can be triggered by passengers pressing the emergency alarm button on the PECU, thus activating the PECU to sound an alarm. The alarm information generated by the PECU can include the carriage location information, which is the most basic information and the basis for the execution of emergency alarm functions, ensuring rapid location of the alarm. Additionally, alarm information can also be triggered by the TCMS monitoring whether relevant scenarios have occurred within the train, such as the use of a fire extinguisher or the opening of an electrical cabinet door. The PIS, detecting the alarm information from the PECU, sends it to the target receiving system. Specifically, when the train is manned, the alarm signal can be sent to the driver's control room system; when the train is unmanned, the alarm signal is sent to the OCC, thus ensuring a rapid response to the alarm information.

[0072] It should also be noted that voice linkage can be achieved through the intercom device on the PECU, while video linkage can be achieved through the CCTV system. The camera is a resource of the CCTV system, and the PECU needs to be bound to the vehicle's location information to facilitate sending the accident scene monitoring video obtained from the corresponding camera from the CCTV system for video linkage in emergencies.

[0073] In some implementations, when the alarm system is a PECU, the alarm system inside the train is triggered, including:

[0074] The PECU is activated by a passenger or automatically activated under a first preset scenario; wherein the first preset scenario includes at least one of the following scenarios: emergency door unlocking, door status loss, emergency door unlocking device activation, and emergency door status loss.

[0075] It should be noted that the PECU can be activated by a passenger, or automatically activated under one or more preset scenarios. In these cases, the PECU alarm is triggered, and the PIS sends the relevant alarm information.

[0076] In some embodiments, the PIS sends an alarm signal to the target receiving system according to the current driving mode, which may include:

[0077] PIS determines the current driving mode;

[0078] If the current driving mode is manned, the PIS will send an alarm signal to the driver control room system;

[0079] If the current driving mode is autonomous, PIS will send an alarm signal to OCC.

[0080] It should be noted that "manned" means there is a driver operating the train. In this case, alarm information can be directly sent to the driver's control room system for emergency handling by the driver's cab staff (such as the driver). "Driverless" means the train is in a fully automated driving mode. There is usually no driver in the cab to handle emergencies. In this case, the alarm signal needs to be sent to the OCC (Operational Control Center) for emergency handling by OCC staff. This allows for more reliable and timely processing of alarm signals.

[0081] In some embodiments, when the current driving mode is autonomous driving, the method may further include:

[0082] Determine if the driver's cab cover is open;

[0083] If the driver's cab cover is opened, the PIS will send an alarm signal to both the driver's control room system and the OCC simultaneously.

[0084] If the driver's cab cover is not opened, PIS will only send an alarm signal to OCC.

[0085] It should be noted that when the train is driverless, there may be personnel operating the driver's cab cover. If the driver's cab cover is open, it indicates that personnel operating the cover may be in the driver's cab. In this case, the PIS can simultaneously send alarm signals to both the driver control room system and the OCC, allowing personnel in the driver's cab to handle the emergency. Priority is given to whichever personnel respond first. If the OCC personnel handle the alarm, no further alarm information is sent to the driver control room system; similarly, if the personnel in the driver control room handle the alarm, no further alarm information is sent to the OCC.

[0086] If the driver's console cover is not open, it indicates that no staff member is present to operate it. In this case, the PIS will only send an alarm signal to the OCC, whose staff will then handle the emergency. This reduces the number of passenger alarm attempts in emergency situations, shortens the alarm time, and ensures passenger safety.

[0087] In some embodiments, the driver control room system includes a DDU, a DDU, and a monitoring screen. When the target receiving system is the driver control room system, the target receiving system performs voice and video linkage with the train based on the alarm signal, including:

[0088] After the PIS sends the alarm signal to the driver control room system, the DDU alarms, the DDU displays the alarm location, and the monitoring screen displays the monitoring image at the alarm location or the camera image of the PECU.

[0089] After the DDACU is activated, a communication connection is established with the PECU;

[0090] After the communication ended, the PECU was remotely reset, and the monitoring screen returned to its initial state.

[0091] In some embodiments, if the PIS sends a new alarm signal to the driver control room system during the communication connection between the DDU and the PECU, the new alarm signal will be displayed on the monitoring screen until the communication connection ends. Based on the new alarm information, the DDU will alarm, the DDU will display the alarm location, the monitoring screen will display the monitoring screen at the alarm location, or the camera screen of the PECU.

[0092] If the PIS sends multiple alarm messages to the driver's control room system at the same time, the multiple alarm messages will be displayed on the monitoring screen so that the driver's control personnel can choose one to answer.

[0093] If the DAU is not activated within a preset time after the PIS sends the alarm signal to the driver control room system, the PIS will send the alarm signal to the OCC.

[0094] In some embodiments, when the target receiving system is an OCC, the target receiving system performs voice and video linkage with the train based on the alarm signal, including:

[0095] After the PIS sends the alarm signal to the OCC, if the OCC is activated, a communication connection is established with the PECU. The OCC can selectively retrieve the monitoring screen at the alarm location or the camera screen of the PECU.

[0096] After the communication ends, the PECU is remotely reset;

[0097] If a new alarm signal is sent to the OCC during the communication connection between the OCC and the PECU, the signal will be queued and waited until the communication connection ends.

[0098] It should be noted that the following is combined with Figure 2 The detailed process of alarm and linkage in the aforementioned passenger alarm situations is explained. In practical applications, multiple passenger emergency alarm devices can be installed in each passenger compartment of the train, which can be arranged in the door pillars, and one passenger emergency alarm device can be installed at the escape door of the driver's cab.

[0099] like Figure 2 As shown, the specific implementation process for passenger alarms includes:

[0100] S201: The alarm is triggered by the linkage condition of the corresponding PECU or by the passenger triggering any PECU.

[0101] It should be noted that the linkage condition is any of the aforementioned first preset scenarios, and passenger triggering is achieved by the passenger pressing the button on the passenger emergency alarm device. In the event of an emergency, the passenger can initiate an alarm to the DAU / OCC via the emergency button on the passenger emergency alarm device, and achieve full-duplex video communication with the driver / OCC through the embedded intercom device and camera next to the button. The passenger emergency alarm device is equipped with indicator lights to guide and indicate the passenger's communication status.

[0102] In an emergency, if a passenger presses the alarm button, the PECU will activate the alarm, and the DDU will emit an alarm sound to alert the driver that a passenger has raised an alarm. The specific location of the alarm point will also be displayed on the DDU's monitoring screen, which can be a monitoring touch screen that allows for touch control.

[0103] The PECU can be reset after the driver and passenger finish their conversation. If the driver does not answer the passenger's call within 90 seconds (adjustable by software), the PECU will automatically reset. The passenger emergency intercom and passenger emergency alarm can be integrated in a modular design, using an embedded condenser (noise-free) sound pressure level microphone. The driver intercom and passenger emergency intercom use an equal priority control scheme, which can be selected by the driver, and they cannot be interrupted by each other.

[0104] S202: PCU determines whether it is in driverless mode.

[0105] If the judgment result is yes, then proceed to step S203; otherwise, proceed to step S204.

[0106] Here, Yes (abbreviated as Y) means yes, and No (abbreviated as N) means no.

[0107] S203: Determine whether the driver's cab cover is open.

[0108] If the judgment result is yes, then proceed to step S204; otherwise, proceed to step S207.

[0109] S204: The alarm information is sent to the driver's cab broadcast control box, where the driver will answer the passenger's alarm.

[0110] S205: The monitoring touchscreen automatically displays the alarm video from the passenger room camera in full screen, and the camera view of the PECU can be manually selected.

[0111] S206: The driver answers a passenger's emergency call and speaks with the passenger.

[0112] S207: The alarm information is sent to the OCC, where the OCC staff will answer the passenger's alarm and select to view the corresponding alarm video.

[0113] S208: The OCC duty personnel can select and view the corresponding passenger room camera footage / PECU camera footage.

[0114] S209: OCC duty officer speaks with passenger.

[0115] S210: PCU starts call recording, NVR starts emergency video recording.

[0116] S211: OCC / Driver ends call and resets PECU.

[0117] S212: The PCU ends call recording, the NVR ends emergency video recording, and the monitoring touchscreen returns to its initial state.

[0118] Specifically, when the train is manned (with a key), passenger alarms are answered through the DCU. When a passenger presses the alarm button on the PECU, the PECU's LED "call" indicator lights up, activating the intercom with the driver. The DDU's monitoring touchscreen displays the alarm location, the DCU sounds an alarm, and the monitoring touchscreen displays the corresponding passenger compartment camera footage in full screen. At the same time, an icon for the PECU's built-in camera is displayed on the monitoring touchscreen. If needed, the driver can click this icon to switch the view to the PECU's built-in camera.

[0119] When the driver presses the "Passenger Alarm" button, the PECU is activated, and the PECU's "Intercom" indicator light remains on, establishing full-duplex communication. Once the alarm stops, the PECU's speaker and microphone activate, allowing the driver to begin full-duplex intercom communication with passengers. The driver's cab public address system (PCU) initiates call recording, and the NVR starts emergency video recording.

[0120] The driver presses the "Passenger Alarm" button again, the call ends, the PCU stops recording the call, the NVR stops recording the emergency video, the PECU is remotely reset, and the monitoring touchscreen returns to its initial state.

[0121] It should be noted that during a passenger's alarm call, if another passenger makes an alarm, the system will store the PECU's call information and display it on the monitoring touchscreen. The PECU's "Call" indicator light will remain lit. After the previous passenger's alarm ends, the DAU will automatically issue an alarm to indicate that there are still passengers making alarms. The driver can continue to press the "Passenger Alarm" button to connect the alarm and talk to the passenger.

[0122] If multiple passengers trigger emergency alarms in succession, and the driver wants to answer the alarms from a specific location first, the driver can select to answer on the monitoring touch screen. The driver can also press and hold the "Passenger Alarm" button to reset all passenger emergency alarms at once.

[0123] In the case of a manned vehicle, if the driver does not answer the passenger's emergency alarm within 15 seconds (i.e., the preset time), the alarm information will be sent to the OCC simultaneously, and the driver and the OCC will be determined by who answers first.

[0124] When the train is driverless (keyless), the intercom is received via OCC. When a passenger presses the alarm button on the PECU, the PECU's LED "call" indicator lights up, activating the intercom with the OCC. The alarm information is transmitted to the OCC via the PIS system Ethernet and the PIS system's interface with radio broadcasting (RADIO).

[0125] When the train is in fully automated driving mode (FAM mode) but the driver's cab cover is not open, passenger emergency alarm information will be sent directly to the OCC; if the train is in FAM mode but the driver's cab cover is open, passenger emergency alarm information will be sent to both the driver's cab and the OCC simultaneously, with the first one answered being the priority.

[0126] After the OCC staff confirms the call, the PECU's "intercom" indicator light stays on, establishing full-duplex communication; the PECU's speaker and microphone are activated, initiating a full-duplex intercom between the OCC and the passenger. The PCU starts call recording, and the NVR starts emergency video recording.

[0127] After the call ends, the OCC cancels the intercom, the indicator light goes out, the PCU ends the call recording, the NVR ends the emergency video recording, and the PECU is remotely reset, returning to its initial state.

[0128] It should be noted that the alarm waiting is as follows: If another passenger alarms during the call of a passenger, the system will send the call information of the PECU to the OCC for queuing, and its "call" indicator light will remain on. After the previous passenger's alarm ends, the OCC will indicate that there are still passengers alarming, and the OCC can continue to connect the alarm and talk to the passenger.

[0129] If multiple passengers trigger emergency alarms in succession, OCC staff can select to answer alarms from a specific location on the monitoring touchscreen if they wish to do so. Alternatively, they can press and hold the "Passenger Alarm" button to reset all passenger emergency alarms at once.

[0130] It should also be noted that the OCC's monitoring touchscreen initially displays multiple monitoring screens. Upon receiving an alarm signal, OCC staff can retrieve the corresponding video feeds from the passenger compartment cameras and the cameras built into the PECU in real time based on the alarm information uploaded by the train. If multiple alarm signals occur, OCC staff can handle them sequentially according to their urgency.

[0131] It should also be noted that, in the event that the PECU alarm is triggered in the first preset scenario, the passenger emergency alarm device can be triggered by the passenger or related signals. Figure 2 The linkage conditions include: emergency door unlocking alarm, door status loss, emergency exit unlocking device activation, emergency exit closing status loss, and the emergency stop button on the driver's console. These conditions can automatically trigger the passenger emergency alarm device. The answering / hanging up process after triggering is the same as before. Figure 2 The process for passengers to trigger the alarm device. For example, in the case of an emergency door unlocking alarm linked to the emergency intercom, when the emergency door unlocking alarm is triggered, the corresponding passenger emergency intercom will be automatically activated. The passenger intercom operation is the same as... Figure 2 The procedure for triggering the alarm is the same for passengers in specific situations; it will not be elaborated further here.

[0132] In some embodiments, when the alarm system is TCMS, the alarm system in the train triggers an alarm, including: when the TCMS detects a second preset scenario, sending a second alarm signal to the PIS; wherein the second preset scenario includes at least one of the following scenarios: fire extinguisher in the train is activated, driver's cab cover is activated and opened, electrical cabinet door is opened, emergency door unlocking device is opened, pantograph malfunction, passenger emergency alarm device is triggered, door alignment isolation, door obstacle detection is activated, door status is lost, escape door unlocking device is activated and triggered, escape door closed status is lost, fire inside the train, emergency hammer is removed, emergency stop button set outside the driver's cab is triggered;

[0133] Accordingly, PIS sends alarm signals to the target receiving system based on the current driving mode, including:

[0134] The PIS sends an alarm signal to the target receiving system based on the second alarm signal.

[0135] In some embodiments, the target receiving system performs voice and / or video linkage with the train based on the alarm signal, including:

[0136] PIS triggers the linkage of monitoring video inside the train, sending the monitoring screen corresponding to the second preset scene to the target receiving system;

[0137] The target receiving system selectively retrieves or displays the monitoring screen based on the alarm signal.

[0138] It should be noted that the following is combined with Figure 3 The detailed process of alarm and linkage under the aforementioned TCMS alarm conditions is explained. Figure 3 The following is a block diagram illustrating the specific implementation logic of CCTV video linkage in the event of a TCMS alarm: Figure 3 As shown, the implementation process includes:

[0139] S301: The relevant signal triggers an alarm.

[0140] S302: TCMS forwards alarm information.

[0141] S303: The OCC receives alarm information forwarded by the TCMS and provides corresponding reminders. OCC operators can select to access the video feed from the corresponding cameras.

[0142] S304: The PCU calls up the corresponding camera based on the software-defined linkage list.

[0143] S305: Determine if it is a single alarm.

[0144] If the judgment result is yes, then proceed to step S307; otherwise, proceed to step S306.

[0145] S306: The PCU sorts and processes alarms according to a predefined alarm priority policy.

[0146] S307: The monitoring touchscreen automatically displays the video feed from the corresponding camera in full screen.

[0147] S308: After the alarm information is reset, the monitoring touch screen returns to its initial screen.

[0148] Specifically, the linkage triggering logic is defined as follows:

[0149] When a fire extinguisher in the train is activated, it triggers a video feed from the corresponding passenger compartment camera; when the fire extinguisher is moved, the video feed is activated. The activation ends when the fire extinguisher is moved and reset.

[0150] The driver's cab cover is activated by a trigger, which activates the driver's cab camera. When the driver's cab cover is opened, video synchronization is initiated. Once the driver's cab cover is opened and reset, the synchronization ends.

[0151] When the electrical cabinet door is opened, the camera in the driver's cab and the camera in the passenger compartment are activated; video synchronization occurs when the electrical cabinet door is opened and reset. The synchronization ends when the electrical cabinet door is reopened and reset.

[0152] When the emergency door unlocking device is activated, it triggers the corresponding passenger compartment camera; when the emergency door unlocking alarm is triggered, video synchronization occurs. The synchronization ends after the emergency door unlocking alarm is reset.

[0153] If the pantograph malfunctions, the pantograph camera will be activated; video synchronization will begin when a pantograph malfunction message is received. The synchronization will end once the pantograph malfunction alarm ends.

[0154] When the passenger emergency alarm is triggered, the corresponding cabin camera is activated; when a passenger triggers the PECU emergency call, video linkage is initiated. The linkage ends after the PECU call concludes.

[0155] The door alignment and isolation system triggers the corresponding passenger compartment camera; when a door malfunction is detected, video synchronization is initiated. The synchronization ends once the door malfunction alarm is deactivated.

[0156] When the door obstacle detection is activated, it triggers the corresponding passenger compartment camera; when the door detects an obstacle, video synchronization occurs. Once the door detects an obstacle and resets, the synchronization ends.

[0157] If a door status is lost, the corresponding passenger compartment camera will be activated; when the door status loss is triggered, video synchronization will occur. After the door status is reset, the synchronization will end.

[0158] When the escape door unlocking device is activated, video linkage is initiated. The linkage ends after the escape door unlocking device is activated and reset.

[0159] If the escape door is not in the closed state, video linkage will be activated. After the escape door is reset to the closed state, the linkage will end.

[0160] In the event of a fire inside the vehicle, the corresponding passenger compartment camera will be activated; when the combined heat and smoke detector is triggered, video synchronization will also occur. Once the combined heat and smoke detector is reset, the synchronization will terminate.

[0161] When the emergency hammer is removed, the corresponding passenger room camera is activated; video synchronization occurs when the emergency hammer is removed and activated, and the synchronization ends after the emergency hammer is removed and reset.

[0162] When the emergency stop button located outside the driver's console is triggered, it activates the corresponding passenger compartment camera. When the emergency stop button outside the driver's control panel is triggered, video synchronization occurs. Once the emergency stop button outside the driver's control panel is reset, the synchronization ends.

[0163] It should be noted that when the PIS system receives a relevant alarm signal (i.e., the second alarm signal) from the TCMS system, the PCU will trigger the monitoring touchscreen to display the corresponding camera for video linkage according to the set logic (software-defined linkage list). If only one passenger triggers the alarm, the monitoring touchscreen will automatically display the corresponding camera's video feed in full screen; if multiple passengers trigger emergency alarms successively, they will be processed according to a predefined alarm priority strategy. In fully automated driving mode, the corresponding video images are sent to the OCC via the communication system, and the corresponding control signals are sent from the TCMS to the OCC via the vehicle-to-ground wireless transmission system. OCC operators can choose to view the corresponding monitoring feed.

[0164] Here, the relevant alarm signal represents the alarm signal triggered by the second preset scenario, such as the use of the fire extinguisher or the opening of the electrical cabinet door.

[0165] In some embodiments, the method may further include:

[0166] The PIS determines the number of second preset scenarios corresponding to the second alarm signal;

[0167] If there is only one second preset scene, then PIS will trigger the monitoring video linkage inside the train and send the monitoring screen corresponding to the second preset scene to the target receiving system.

[0168] If there are multiple second preset scenarios, PIS will determine the second preset scenario with the highest priority as the target preset scenario according to the preset priority order, and trigger the monitoring video linkage in the train to send the monitoring screen corresponding to the target preset scenario to the target receiving system.

[0169] It should be noted that the preset priority order represents a predefined alarm priority strategy: the linkage priority is ordered from high to low as follows: fire alarm system linkage > emergency door unlocking linkage > passenger emergency alarm linkage > other alarm linkages. Other alarm linkages have the same priority and are displayed in the order they are triggered. Here, the fire alarm has the highest priority, which is the target preset scenario.

[0170] In some embodiments, the method may further include:

[0171] If there is a positioning isolation between trains, the TCMS will send the location information of the isolated doors to the PIS.

[0172] PIS sends location information to the dynamic map on the train;

[0173] In the area corresponding to the isolated door, a dynamic map displays the malfunction information of the isolated door, and a broadcast reminder is played in the passenger compartment corresponding to the location information.

[0174] Here, "isolation" means that this door is isolated and no longer works with other doors.

[0175] It should be noted that the following is combined with Figure 4 The detailed process of alarm and linkage in the event of isolation is explained. For example... Figure 4 As shown, it illustrates the logic block diagram for the specific implementation of dynamic map and door linkage.

[0176] The logic diagram includes:

[0177] S401: TCMS sends a fault signal for the train door or platform door.

[0178] S402: The PCU receives TCMS control commands and forwards them to the SCU and dynamic map via the switch.

[0179] S403: The SCU indicates that the passenger room speaker is playing a door malfunction warning broadcast.

[0180] S404: Dynamic map displays corresponding prompts.

[0181] Specifically, if a door malfunction or platform door malfunction triggers a positioning isolation, the PIS system can obtain the location information of the isolated door through the TCMS system. The PCU receives the TCMS control command and forwards it to the passenger compartment host (SCU) through the switch. The SCU will send the location information of the isolated door to the dynamic map. The SCU controls the passenger compartment speakers to play a door malfunction warning broadcast, and the dynamic map above the isolated door will simultaneously display the information that the door is not open.

[0182] In summary, the embodiments disclosed herein pertain to a method for displaying and controlling the PIS system itself and its linkage with other systems in unmanned rail transit trains. The aim is to provide a multi-scenario linkage method for the PIS system of unmanned rail transit trains, applicable to unmanned trains, which achieves information display and control in various application scenarios through linkage between the PIS system and other systems.

[0183] To achieve the above objectives, the embodiments of this disclosure adopt the following technical solutions:

[0184] 1. Based on the train's status (driving mode / non-driving mode) and passenger service needs (passengers triggering emergency alarms), the PIS sends alarm information to the OCC / driver's cab broadcast control box, and the PIS video monitoring screen displays it in conjunction with this.

[0185] 2. The passenger emergency alarm can be triggered by passenger or related signals. The PIS automatically activates the corresponding passenger emergency alarm device based on the related linkage signal.

[0186] 3. PIS will link the dynamic map with the status of the train doors / platform doors (normal / faulty) to display fault alerts.

[0187] 4. PIS Multi-Scene CCTV Video Linkage. When the PIS receives a relevant alarm signal from the TCMS, it will trigger the monitoring touchscreen to display the corresponding camera for video linkage according to the set logic. In fully automated driving mode, the corresponding video image is sent to the OCC through the communication system, and the corresponding control signal is sent from the TCMS to the OCC through the vehicle-to-ground wireless transmission system, sending alarm information to the OCC. The OCC operator can choose to view the corresponding monitoring screen.

[0188] This disclosure provides a multi-system linkage method for rail transit trains, applicable to both rail transit and driverless trains. Without affecting the normal operation of the metro communication system, it enables the linkage of PIS, TCMS, and CCTV systems and the intelligent transmission of alarm information during emergency alarms through software updates. This assists in emergency response and passenger evacuation, and realizes information display and control in various application scenarios, thereby improving the passenger service quality and operational efficiency of driverless metro trains.

[0189] In another embodiment of this disclosure, see Figure 5 This illustration shows a schematic diagram of the composition structure of a rail transit train system provided in an embodiment of this disclosure. Figure 5 As shown, the system 50 may include: PIS 51, TCMS 52 and CCTV system 53, and the specific linkage method of each system is as described in the aforementioned embodiment.

[0190] The above description is merely a preferred embodiment of this disclosure and is not intended to limit the scope of protection of this disclosure.

[0191] It should be noted that, in this disclosure, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0192] The sequence numbers of the embodiments disclosed above are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0193] The methods disclosed in the several method embodiments provided in this disclosure can be arbitrarily combined without conflict to obtain new method embodiments.

[0194] The features disclosed in the several product embodiments provided in this disclosure can be combined arbitrarily without conflict to obtain new product embodiments.

[0195] The features disclosed in the several method or device embodiments provided in this disclosure can be arbitrarily combined without conflict to obtain new method or device embodiments.

[0196] The above description is merely a specific embodiment of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A method for multi-system linkage in rail transit trains, characterized in that, The method includes: When the alarm system inside the train is triggered, the Passenger Information System (PIS) sends the alarm signal to the target receiving system according to the current driving mode; the alarm system is the Passenger Alarm Device (PECU), and the target receiving system is the driver control room system and / or the Metro Control Center (OCC). The target receiving system performs voice and / or video linkage with the train based on the alarm signal; When the alarm system is the PECU, the PIS sends an alarm signal to the target receiving system according to the current driving mode, including: The PIS determines the current driving mode; When the current driving mode is driverless, determine whether the driver's cab cover is open; If the driver's cab cover is opened, the PIS will simultaneously send the alarm signal to the driver's control room system and the OCC. If the driver's cab cover is not opened, the PIS will only send the alarm signal to the OCC; If the current driving mode is manned, the PIS will send the alarm signal to the driver control room system.

2. The method according to claim 1, characterized in that, When the alarm system is the PECU, the alarm system inside the train triggers an alarm, including: The PECU is activated by a passenger or automatically activated under a first preset scenario; wherein the first preset scenario includes at least one of the following scenarios: emergency door unlocking, door status loss, emergency door unlocking device activation, and emergency door status loss.

3. The method according to claim 1, characterized in that, The driver control room system includes a driver's cab broadcast control unit (DACU), a driver's display unit (DDU), and a monitoring screen. When the target receiving system is the driver control room system, the target receiving system performs voice and video linkage with the train based on the alarm signal, including: After the PIS sends the alarm signal to the driver control room system, the DDU alarms, the DDU displays the alarm location, the monitoring screen displays the monitoring image at the alarm location, or the camera image of the PECU; After the DAU is turned on, a communication connection is established with the PECU; After the communication ends, the PECU is remotely reset, and the monitoring screen returns to its initial state.

4. The method according to claim 3, characterized in that, If, during the communication connection between the DDU and the PECU, the PIS sends a new alarm signal to the driver control room system, the new alarm signal will be displayed on the monitoring screen until the communication connection ends. Based on the new alarm signal, the DDU will alarm, the DDU will display the alarm location, the monitoring screen will display the monitoring image at the alarm location, or the camera image of the PECU. If the PIS sends multiple alarm signals to the driver control room system at the same time, the multiple alarm signals will be displayed on the monitoring screen so that the driver control personnel can select one to answer. If the DAU is not activated within a preset time after the PIS sends the alarm signal to the driver control room system, the PIS will send the alarm signal to the OCC.

5. The method according to claim 1, characterized in that, When the target receiving system is the OCC, the target receiving system performs voice and video linkage with the train based on the alarm signal, including: After the PIS sends the alarm signal to the OCC, if the OCC is activated, a communication connection is established with the PECU, and the OCC selectively retrieves the monitoring screen at the alarm location or the camera screen of the PECU. After the communication ends, the PECU is remotely reset; If, during the communication connection between the OCC and the PECU, the PIS sends a new alarm signal to the OCC, the signal will be queued and waited until the communication connection ends.

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