Railway train emergency braking method and device

Abstract

This specification provides an emergency braking method and apparatus for rail trains. The method includes responding to a remote emergency braking command sent by the Train Emergency Response System (TIAS) during a line emergency. The Train Control Center (ZC) determines its control area based on the emergency control area type information in the emergency braking command and sends an emergency braking command to the train's onboard controller within the control area. The onboard controller then applies emergency braking to the train based on the command, and provides feedback on the emergency braking status to determine whether the emergency braking command sent by the TIAS is effective. Emergency control area types include ZC concentration areas, CI concentration areas, and physical sections. This invention aims to respond to emergency braking commands from ZC, CI, and individual physical sections, triggering emergency braking within the affected area of ​​an emergency, minimizing the scope of emergency braking, and improving the efficiency of rail transit operations while ensuring safety.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of traffic control, in particular to a rail train emergency braking method and device. BACKGROUND

[0002] In the full-automatic operation signal system of rail transit, the train is normally operated on the line without the driver driving. At this time, if an emergency occurs on the line or in the region, such as unknown foreign matter invading the track, which cannot be automatically identified by the full-automatic operation signal system, the train needs to be parked in an emergency. At this time, the dispatch personnel need to issue a full-line emergency to the ZC (Zone controller) through the center TIAS, and then the ZC will issue an emergency command to the train in the entire ZC centralized area to make the train in the entire ZC centralized area park in an emergency. There are the following problems:

[0003] (1) Since whether the emergency occurs is a human judgment and the emergency braking command is issued in sequence, it takes a lot of time and also leads to the risk that the emergency train does not issue the emergency braking command in time.

[0004] (2) The braking range of the existing emergency braking command is basically the range of the ZC centralized area. The braking range is too large, which will affect the normal operation of the train, cause a large number of trains to be late, and other problems, which greatly affect the normal operation of the rail transit and are not friendly to the operation personnel and passengers, and the usability is poor. SUMMARY

[0005] To overcome the problems in the related art, the present application provides a rail train emergency braking method and device to solve the technical problems in the related art.

[0006] One or more embodiments of the present application provide a rail train emergency braking method, comprising:

[0007] In response to a remote emergency braking command sent by the TIAS in an emergency of the line, the ZC determines the control area range of the ZC according to the emergency control area type information in the emergency braking command, and sends the emergency braking command to the train-mounted controller in the control area range, so that the train-mounted controller applies emergency braking to the train based on the emergency braking command, and the corresponding train-mounted controller feeds back the emergency braking state information to determine whether the emergency braking command sent by the TIAS takes effect; wherein,

[0008] The emergency control area type includes a ZC centralized area, a CI centralized area, and a physical section.

[0009] Further, the method further comprises the step of: in response to the remote emergency brake release command sent by the TIAS in response to the line emergency situation being resolved, the ZC sends a brake release command to the corresponding vehicle-mounted controller to make the corresponding vehicle-mounted controller release the emergency brake.

[0010] Further, after the ZC sends the remote emergency brake command or the remote emergency brake release command, the ZC judges the legality of the command, which comprises:

[0011] The ZC determines the type of the emergency control area in the remote emergency brake command or the remote emergency brake release command, and according to the ZC quantity information and the ID information of the ZC contained in the remote emergency brake command or the remote emergency brake release command, the number of ZCs under the corresponding emergency control area, the number of CIs in communication with the ZC, or the number of physical sections controlled by the ZC is not greater than the maximum number configured, and the ID of the ZC is the ID of the ZC, or the ID of the CI or the physical section is the ID of the corresponding CI or physical section under the control of the ZC.

[0012] Further, after the remote emergency brake release command sent by the TIAS, the method further comprises the steps of:

[0013] The ZC receives the remote emergency brake release command and determines whether the brake release control area in the emergency brake release command is an area where the emergency brake has been activated, or whether the brake release control area is in a state of waiting to release the emergency brake, or whether the CRC check information in the emergency brake release command is consistent with the CRC calculated by the ZC after receiving the emergency brake release command. If any of the conditions is not met, the remote emergency brake release command is illegal, and the ZC feeds back to the TIAS that the remote emergency brake release command is received.

[0014] Further, the method further comprises the step of: after the corresponding vehicle-mounted controller releases the emergency brake, the vehicle-mounted controller sends first feedback information to the TIAS, and the TIAS receives the first feedback information returned by the vehicle-mounted controller and sends a remote emergency brake release command to the ZC again. When the second feedback information returned by the vehicle-mounted controller is received, it is determined that the corresponding train releases the emergency brake.

[0015] Further, after the remote emergency brake release command is sent to the ZC again, the method further comprises the steps of:

[0016] The ZC compares the information of the remote emergency brake release command received again with the information of the remote emergency brake release command received last time to determine whether they are consistent. If they are consistent, the ZC sends a brake release command to the corresponding vehicle-mounted controller.

[0017] Further, after the vehicle-mounted controller applies the emergency brake to the train based on the emergency brake command, the method further comprises the steps of:

[0018] If TIAS does not receive the emergency braking status information returned by the vehicle controller, the area controller will receive the remote emergency braking command resent by TIAS until TIAS receives the emergency braking status information returned by the vehicle controller or the number of resentments reaches the preset number.

[0019] If the number of retransmissions reaches the preset number and no emergency braking status information is received from the vehicle controller during the retransmission process, TIAS will trigger a prompt indicating that the remote emergency braking command setting has failed.

[0020] This specification provides one or more embodiments of an emergency braking device for a rail train, including...

[0021] Receiver module: Used to receive remote emergency braking commands sent by TIAS in response to line emergencies;

[0022] Judgment module: Determines the control area range of ZC based on the emergency control area type information in the emergency braking command;

[0023] The first sending module is used to send an emergency braking command to the train's onboard controller within a defined control area, causing the onboard controller to apply emergency braking to the train based on the command. The onboard controller also provides feedback on the emergency braking status to determine whether the emergency braking command sent by TIAS has taken effect.

[0024] Emergency control zone types include ZC concentration zones, CI concentration zones, and physical zones.

[0025] Furthermore, the device also includes a second transmitting module, used to send an emergency braking relief command to the corresponding vehicle controller based on the remote emergency braking relief command sent by TIAS in response to the release of the emergency on the line, received by the receiving module, so that the corresponding vehicle controller can relieve the emergency braking.

[0026] Furthermore, the judgment module is specifically used for,

[0027] After TIAS sends a remote emergency braking command or a remote emergency braking relief command, it performs a legality check on the command, including:

[0028] Determine the type of emergency control area in the emergency braking command or remote emergency braking relief command. Based on the number of ZCs and the ID information of ZCs contained in the remote emergency braking command or remote emergency braking relief command, ensure that the number of ZCs, the number of CIs communicating with the ZCs, or the number of physical segments controlled by the ZCs in the corresponding emergency control area are not greater than the configured maximum number, and that the ID of the ZC is the ID of this ZC, or whether the ID of the CI or the ID of the physical segment is the ID of the corresponding CI or physical segment under the management and control of this ZC.

[0029] This invention discloses an emergency braking method and device for rail trains. It discloses that, based on the scope of the impact of an emergency fault on the line, the central TIAS (Train Transit Authority System) issues an emergency braking command to the ZC (Train Control Center) for a ZC (Train Control Center), a CI (Train Control Center), or a single physical section. Upon receiving the emergency braking command from the central TIAS, the ZC issues an emergency braking command to the onboard controller of the train entering the designated area. This enables response to emergency braking commands for ZC, CI, and single physical sections, allowing dispatchers to trigger emergency braking within the scope of the emergency's impact, minimizing the impact on other normal trains on the line, and improving the efficiency of rail transit operations while ensuring safety. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in one or more embodiments of this specification or in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this specification. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 A flowchart of an emergency braking method for a railcar provided for one or more embodiments of this specification;

[0032] Figure 2 A schematic diagram of the existing station area provided for one or more embodiments of this specification;

[0033] Figure 3 A schematic diagram of the interactive process for sending remote braking commands to TIAS as provided in one or more embodiments of this specification;

[0034] Figure 4 A schematic diagram of the interactive process of a remote emergency braking relief command sent by TIAS as provided in one or more embodiments of this specification;

[0035] Figure 5This is a block diagram of an emergency braking device for a rail train provided for one or more embodiments of this specification. Detailed Implementation

[0036] To enable those skilled in the art to better understand the technical solutions in one or more embodiments of this specification, the technical solutions in one or more embodiments of this specification will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this specification, and not all of the embodiments. Based on one or more embodiments of this specification, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this invention.

[0037] The present invention will now be described in detail with reference to specific embodiments and accompanying drawings.

[0038] Method Implementation Examples

[0039] According to an embodiment of the present invention, an emergency braking method for rail trains is provided, such as... Figure 1 The diagram shown is a flowchart of the emergency braking method for a rail train provided in this embodiment. According to an embodiment of the present invention, an emergency braking method for a rail train includes:

[0040] Step S1: In response to a remote emergency braking command sent by TIAS in the event of a line emergency, ZC determines the control area range of ZC based on the emergency control area type information in the emergency braking command.

[0041] Step S2: Send an emergency braking command to the train onboard controller within the control area, so that the onboard controller applies emergency braking to the train based on the emergency braking command, and the corresponding onboard controller feeds back emergency braking status information to determine whether the emergency braking command sent by TIAS is effective. The emergency control area types include ZC centralized area, CI centralized area and physical section.

[0042] In this embodiment, based on the scope of the impact of an emergency fault on the line, the central TIAS sends an emergency braking command to the ZC (Zero-Centered Station), a ZC (Centered Station), a CI (Centered Station), or a single physical section area. After receiving the emergency braking command from the central TIAS, the ZC issues an emergency braking command to the onboard controller of the train entering the designated area. This enables the response to emergency braking commands for ZC, CI, and single physical sections, allowing dispatchers to trigger emergency braking within the scope of the emergency's impact, keeping emergency braking to a minimum and not affecting other normal trains on the line, thereby improving the efficiency of rail transit operations while ensuring safety.

[0043] In some embodiments, the above content mainly describes the process of remote emergency braking when a line abnormality occurs. Considering that after the train applies emergency braking, the line abnormality has been resolved or it is determined that the train no longer needs to maintain the remote emergency braking state, i.e., when the line is in a normal state, in order to ensure the efficiency of track line operation and restore train operation on the line in a timely manner, operators can set remote emergency braking release commands based on TIAS. TIAS can automatically send remote emergency braking release commands to the designated ZC through the network. Specifically, the implementation steps may include the following:

[0044] Step S3: In response to the remote emergency braking relief command sent by TIAS when the emergency situation on the line is resolved, ZC sends an emergency braking relief command to the corresponding on-board controller so that the corresponding on-board controller can relieve the emergency braking.

[0045] In some embodiments, to ensure that the emergency braking command or remote emergency braking relief command sent by the dispatcher is correct and valid, and to rule out control commands triggered by the dispatcher not due to misoperation, after the TIAS sends the remote emergency braking command or remote emergency braking relief command, ZC performs a legality judgment on the command, specifically including the following steps:

[0046] Step S4: ZC determines the emergency control area type in the remote emergency braking command or remote emergency braking relief command. Based on the ZC quantity information and ZC ID information contained in the remote emergency braking command or remote emergency braking relief command, the number of ZCs in the corresponding emergency control area, the number of CIs communicating with ZCs, or the number of physical segments controlled by ZCs are not greater than the configured maximum number, and the ZC ID is the ID of this ZC, or whether the ID of the CI or the physical segment ID is the ID of the corresponding CI or physical segment under the management and control of this ZC.

[0047] In this embodiment, to determine whether the control command sent by TIAS is valid, information for judging the legality of the command is set in the remote emergency braking command or remote emergency braking relief command. Depending on the type of emergency control zone, this may include the following:

[0048] refer to Figure 2The diagram shown is a schematic of the existing station area provided in this embodiment. It can be determined that a ZC centralized area is configured with multiple controlled IC centralized areas, and each IC centralized area is configured with at least one physical segment controlled by multiple IC ports. Therefore, this embodiment considers the situation where the control braking range includes all operating trains in a certain ZC centralized area, all operating trains in one or more CI centralized areas under ZC control, or all operating trains in one or more physical segments under ZC control. Therefore, the emergency control area type information in the control commands sent differs depending on the control range. Based on the remote braking command or remote emergency braking relief command involving different control area types, the ZC judges the legality of the command in the following three ways, which can be referred to for details. Figure 3 The diagram shown illustrates the interactive process of TIAS sending remote braking commands according to this embodiment. The interactive process of TIAS sending remote emergency braking relief commands is as follows: Figure 3 Basically the same, and also referencing Figure 3 To understand this, see the diagram.

[0049] 1) The control area type is ZC centralized area;

[0050] When dispatchers determine that an emergency has occurred on the line or the emergency has been resolved, and that trains in one or more ZC (Train Control Zone) zones should be brought to an emergency stop or restored to normal operation, the central TIAS (Train Control System) will manually select the corresponding ZC (Train Control Zone) to issue a remote emergency braking command or a remote emergency braking relief command. The legality of the following commands executed by the ZC will be judged:

[0051] The remote emergency braking command or remote emergency braking relief command contains the type, quantity, and ID of the emergency control area. If the type is ZC centralized area, the quantity is 1, and the ID information is the ID of the ZC receiving the command, the remote emergency braking command or remote emergency braking relief command is valid. If any one of the conditions is not met, the command is invalid.

[0052] If the command is deemed valid, the command is stored, protection within this ZC range is activated, and a successful setup message is sent to TIAS, along with the type of the protected emergency control zone and the number of protected ZCs, ICs, or physical segments; otherwise, a failure message is sent to TIAS.

[0053] 2) The control area type is CI (Concentrated Area);

[0054] When dispatchers determine that an emergency has occurred on the line or the emergency has been resolved, and that one or more trains in a certain CI centralized area under the control of a certain ZC should be brought to an emergency stop or restored to normal status, the central TIAS will manually select the corresponding ZC to issue a remote emergency braking command or a remote emergency braking relief command. The legality of the following commands executed by the ZC will be judged:

[0055] The remote emergency braking command or remote emergency braking relief command contains the type, quantity, and ID of the emergency control area. If the type is one or more IC centralized areas, the number of ICs is not greater than the maximum number of ICs configured under the ZC, and the ID of the IC is the ID of the corresponding CI under the management and control of this ZC, then the remote emergency braking command or remote emergency braking relief command is valid. If any one of the conditions is not met, it is invalid.

[0056] If the command is deemed valid, the command is stored, the protection within this ZC is activated, and a successful setup is reported to TIAS; otherwise, a failure is reported to TIAS.

[0057] 3) The control area type is a physical segment;

[0058] When dispatchers determine that an emergency has occurred on the line or the emergency has been resolved, and that trains in one or more physical sections under the control of a certain ZC should be brought to an emergency stop or restored to normal operation, the central TIAS (Train Control Center) will manually select the corresponding ZC to issue a remote emergency braking command or a remote emergency braking relief command. The legality of the following commands executed by the ZC will be judged:

[0059] The remote emergency braking command or remote emergency braking relief command contains the type, quantity, and ID of the emergency control area. If the type is one or more physical segments, the number of physical segments is not greater than the maximum number of physical segments configured under ZC, and the ID of the physical segment is the ID of the corresponding physical segment under the management and control of this ZC, then the remote emergency braking command or remote emergency braking relief command is valid. If any one of the conditions is not met, it is invalid.

[0060] If the command is deemed valid, the command is stored, the protection within this ZC is activated, and a successful setup is reported to TIAS; otherwise, a failure is reported to TIAS.

[0061] In this embodiment, the physical section can be a track circuit section or an axle counting section.

[0062] In this embodiment, after the legality determination is passed, ZC periodically sends an emergency braking command to the trains it controls within its centralized area. This command is a dedicated command for ZC train control. ZC train control requires periodic and continuous interaction with the corresponding trains to keep them in a braking state. Therefore, remote emergency braking commands or remote emergency braking relief commands need to be sent periodically. In order to allow dispatchers to know which areas have taken effect with emergency braking commands, and to allow them to select the corresponding area to cancel the remote emergency braking command when the emergency is over, ZC will periodically report the activated protection areas within its ZC range to TIAS. Therefore, the execution of the following two situations is also included:

[0063] Scenario 1: If TIAS does not receive the emergency braking status information returned by the vehicle controller, the area controller will receive the remote emergency braking command resent by TIAS until TIAS receives the emergency braking status information returned by the vehicle controller or the number of resentments reaches the preset number.

[0064] Scenario 2: If the number of retransmissions reaches the preset number and no emergency braking status information is received from the vehicle controller during the retransmission process, TIAS will trigger a prompt indicating that the remote emergency braking command setting has failed.

[0065] In this embodiment, emergency braking status information can be sent periodically according to a preset time interval. This can be set according to actual needs and no specific restrictions are imposed.

[0066] In this embodiment, to ensure the correctness of the remote emergency braking relief command and to eliminate the possibility of accidental tampering during network transmission, the validity of the sent remote emergency braking relief command must be determined. This specifically includes the following steps:

[0067] Step 41: ZC receives the remote emergency braking relief command and determines whether the braking relief control area in the emergency braking relief command is an area where emergency braking has been activated, or whether the braking relief control area is in a state of waiting to relieve emergency braking, or whether the CRC check information in the emergency braking relief command is consistent with the CRC calculated by ZC after receiving the emergency braking relief command. If any condition is not met, the remote emergency braking relief command is invalid, and ZC reports the failure to receive the remote emergency braking relief command to the TIAS.

[0068] Specifically, for the remote emergency braking relief command sent, the control area of ​​ZC is first determined, and whether ZC has sent and executed emergency braking action on the trains within the corresponding control area. If not, ZC does not need to make the following judgment; it can directly report the execution failure information to TIAS.

[0069] If ZC executes an emergency braking command on trains within the control area, it needs to determine whether the brake release control area is in a state of pending emergency braking. If not, it should report the execution failure information to TIAS.

[0070] If the emergency braking is in a state of pending relief, ZC needs to calculate the CRC based on the information of the remote emergency braking relief command and check whether it is consistent with the CRC check information in the remote emergency braking relief command. This is because if the emergency braking relief command information is tampered with during command transmission, the CRC result calculated by ZC based on the received information will definitely be different from the CRC check information in the remote emergency braking relief command, indicating that the emergency braking relief command information has been tampered with.

[0071] In this embodiment, to prevent dispatchers from accidentally triggering emergency braking relief commands, ZC needs to confirm that both of the two remote emergency braking relief commands periodically sent by TIAS are legal and valid before sending an emergency braking relief command to the train's onboard controller within the control area. This allows the onboard controller to restore the train to its running state based on the emergency braking relief command. See also... Figure 4 The diagram shown illustrates the interactive process of the remote emergency braking relief command sent by TIAS in this embodiment; specifically, as shown... Figure 4 The implementation steps include the following:

[0072] Step 51: Based on the first remote emergency braking relief command sent by TIAS, ZC judges the legality of the first remote emergency braking relief command. When the first remote emergency braking relief command is legal, ZC judges the validity of the first remote emergency braking relief command through step S41. If it is a valid remote emergency braking relief command, ZC sends the execution failure information to TIAS and saves the first remote emergency braking relief command.

[0073] Step 52: After TIAS receives the execution failure information from ZC, it will resend the first remote emergency braking relief command and the second remote emergency braking relief command with the same information. ZC will judge the legality of the second remote emergency braking relief command. If the second remote emergency braking relief command is legal, ZC will judge the validity of the second remote emergency braking relief command through step S41. If it is a valid remote emergency braking relief command, ZC will send an emergency braking relief command to the train onboard controller within the control area so that the corresponding train can release the braking state and resume running.

[0074] In some embodiments, in order to improve the communication efficiency of the entire information interaction process, this embodiment performs the following steps after ZC receives the second remote emergency braking relief command:

[0075] ZC compares the information of the second remote emergency braking relief command with that of the first remote emergency braking relief command to determine if they are consistent. If they are consistent, ZC sends an emergency braking relief command to the corresponding vehicle controller. The comparison information may include the emergency control area type, ZC quantity information, and ID information.

[0076] System Implementation Examples

[0077] According to embodiments of the present invention, an emergency braking device for rail trains is provided, such as... Figure 5 The diagram shown is a block diagram of a rail train emergency braking device provided by the present invention. According to an embodiment of the present invention, the rail train emergency braking device includes:

[0078] Receiver module 10: Used to receive remote emergency braking commands sent by TIAS in response to line emergencies;

[0079] Judgment Module 20: Determines the control area range of ZC based on the emergency control area type information in the emergency braking command;

[0080] The first sending module 30 is used to send an emergency braking command to the train's onboard controller within the determined control area, causing the onboard controller to apply emergency braking to the train based on the emergency braking command. The onboard controller also provides feedback on the emergency braking status to determine whether the emergency braking command sent by TIAS is effective.

[0081] Emergency control zone types include ZC concentration zones, CI concentration zones, and physical zones.

[0082] The device provided in this embodiment, based on the scope of the impact of an emergency fault on the line, issues an emergency braking command for a ZC centralized area, CI centralized area, or a single physical section area to the ZC via the central TIAS. After receiving the emergency braking command for the ZC centralized area, CI centralized area, or single physical section area issued by the central TIAS, the ZC issues an emergency braking command to the on-board controller of the train entering the designated area through the first sending module 30. This enables the ZC centralized area, CI centralized area, and single physical section emergency braking command to be responded to, allowing dispatchers to trigger emergency braking within the scope of the emergency based on the impact of the emergency, keeping the emergency braking within a minimum range and not affecting other normal trains on the line, thereby improving the efficiency of rail transit operation while ensuring safety.

[0083] In some embodiments, the device further includes a second transmitting module 40, configured to send an emergency braking relief command to the corresponding vehicle controller based on the remote emergency braking relief command sent by TIAS in response to the release of the emergency on the line, received by the receiving module, so that the corresponding vehicle controller can relieve the emergency braking.

[0084] In some embodiments, the determination module 20 is further configured to determine the legality of a remote emergency braking command or a remote emergency braking relief command after the TIAS sends it, specifically including the following steps:

[0085] Determine the type of emergency control area in the emergency braking command or remote emergency braking relief command. Based on the number of ZCs and the ID information of ZCs contained in the remote emergency braking command or remote emergency braking relief command, ensure that the number of ZCs, the number of CIs communicating with the ZCs, or the number of physical segments controlled by the ZCs in the corresponding emergency control area are not greater than the configured maximum number, and that the ID of the ZC is the ID of this ZC, or whether the ID of the CI or the ID of the physical segment is the ID of the corresponding CI or physical segment under the management and control of this ZC.

[0086] The embodiments of the present invention are device embodiments corresponding to the above method embodiments. The specific operations of each module processing step can be understood with reference to the description of the method embodiments, and will not be repeated here.

[0087] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, for apparatus or system embodiments, since they are basically similar to method embodiments, the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments. The apparatus and system embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without creative effort.

[0088] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and the contents not described in detail in the specification of the present invention are well known to those skilled in the art.

Claims

1. A method for emergency braking of a railcar, characterized in that, include: In response to a remote emergency braking command sent by TIAS during a line emergency, ZC determines its control area based on the emergency control area type information in the emergency braking command, and sends an emergency braking command to the train's onboard controller within the control area. The onboard controller then applies emergency braking to the train based on the command, and provides feedback on the emergency braking status to determine whether the emergency braking command sent by TIAS has taken effect. Emergency control zone types include ZC (Zone Control Area), CI (City Control Area), and physical zones; It also includes steps, In response to the remote emergency braking release command sent by TIAS when the emergency situation on the line is cleared, ZC sends an emergency braking release command to the corresponding on-board controller so that the corresponding on-board controller can release the emergency braking. After the TIAS sends a remote emergency braking command or a remote emergency braking relief command, ZC determines the legality of the command, including: ZC determines the emergency control area type in the remote emergency braking command or remote emergency braking relief command. Based on the ZC quantity information and ZC ID information contained in the remote emergency braking command or remote emergency braking relief command, the number of ZCs in the corresponding emergency control area, the number of CIs communicating with the ZC, or the number of physical segments controlled by the ZC are not greater than the configured maximum number, and the ZC ID is the ID of this ZC, or whether the CI ID or physical segment ID is the ID of the corresponding CI or physical segment under the management and control of this ZC.

2. The emergency braking method for rail trains as described in claim 1, characterized in that, The remote emergency braking relief command sent by TIAS also includes, The ZC receives a remote emergency braking relief command and determines whether the braking relief control area in the emergency braking relief command is an area where emergency braking has been activated, or whether the braking relief control area is in a state of waiting to relieve emergency braking, or whether the CRC check information in the emergency braking relief command is consistent with the CRC calculated by the ZC after receiving the emergency braking relief command. If any condition is not met, the remote emergency braking relief command is invalid, and the ZC reports the failure to receive the remote emergency braking relief command to the TIAS.

3. The emergency braking method for rail trains as described in claim 2, characterized in that, It also includes, After the corresponding onboard controller relieves the emergency braking, it sends the first feedback information to TIAS. Upon receiving the first feedback information from the onboard controller, TIAS resends the remote emergency braking relief command to ZC. When it receives the second feedback information from the onboard controller, it determines that the corresponding train has relieved the emergency braking.

4. The emergency braking method for rail trains as described in claim 3, characterized in that, The process of resending the remote emergency braking relief command to the ZC also includes the following steps. ZC will compare the information of the newly received remote emergency braking relief command with the information of the previously received remote emergency braking relief command to determine whether they are consistent. If they are consistent, ZC will send an emergency braking relief command to the corresponding vehicle controller.

5. The emergency braking method for rail trains as described in claim 1, characterized in that, After the on-board controller applies emergency braking to the train based on the emergency braking command, the process further includes the following steps: If TIAS does not receive the emergency braking status information returned by the vehicle controller, the area controller will receive the remote emergency braking command resent by TIAS until TIAS receives the emergency braking status information returned by the vehicle controller or the number of resentments reaches the preset number. If the number of retransmissions reaches the preset number and no emergency braking status information is received from the vehicle controller during the retransmission process, TIAS will trigger a prompt indicating that the remote emergency braking command setting has failed.

6. An emergency braking device for rail trains, characterized in that, include Receiver module: Used to receive remote emergency braking commands sent by TIAS in response to line emergencies; Judgment module: Used to determine the control area range of ZC based on the emergency control area type information in the emergency braking command; The first sending module is used to send an emergency braking command to the train's onboard controller within a defined control area, causing the onboard controller to apply emergency braking to the train based on the command. The onboard controller also provides feedback on the emergency braking status to determine whether the emergency braking command sent by TIAS has taken effect. Emergency control zone types include ZC (Zone Control Area), CI (City Control Area), and physical zones; The device also includes, The second transmitting module is used to send an emergency braking relief command to the corresponding vehicle controller based on the remote emergency braking relief command sent by TIAS in response to the release of the emergency on the line, so that the corresponding vehicle controller can relieve the emergency braking. The judgment module is also specifically used for, After TIAS sends a remote emergency braking command or a remote emergency braking relief command, it performs a legality check on the command, including: Determine the type of emergency control area in the emergency braking command or remote emergency braking relief command. Based on the number of ZCs and the ID information of ZCs contained in the remote emergency braking command or remote emergency braking relief command, ensure that the number of ZCs, the number of CIs communicating with the ZCs, or the number of physical segments controlled by the ZCs in the corresponding emergency control area are not greater than the configured maximum number, and that the ID of the ZC is the ID of this ZC, or whether the ID of the CI or the ID of the physical segment is the ID of the corresponding CI or physical segment under the management and control of this ZC.

Images