A rapid departure method, electronic device and storage medium for rail transit

Abstract

The present application relates to a kind of quick departure method for rail transport, electronic equipment and storage medium, the method includes the following steps: train enters station, CC continues to send pulse type door opening control instruction to CI;Train opens door and gets on and off passenger and gets on and off passenger is completed, CC stops sending door opening request instruction to CI, and starts "CC side shield door opening instruction effective timer", simultaneously continues to send door closing request instruction to CI;CI receives last packet door opening instruction, starts "CI side shield door opening instruction effective timer";"CI side shield door opening instruction effective timer" ends, and receives the state feedback that shield door is closed and locked from OC, sends door closing feedback instruction to CC;CC receives the door closing feedback instruction of CI, judges whether to meet the requirement of departure, if yes, then "CI side shield door opening instruction effective timer" is bypassed, and departure is authorized.Compared with prior art, the present application has the advantages of short departure interval, strong versatility and safety.

Description

Technical Field

[0001] The present invention relates to the field of rail transit departure control, and in particular to a fast departure method, electronic equipment and storage medium for rail transit. Background Art

[0002] Currently, there are an increasing number of urban rail transit renovation projects, but some do not include retrofitting platform screen doors (PSDs) within their scope. This leads to time delays in platform screen door management. In some renovation projects, if the platform doors are open but no door-opening command is issued, an alarm will alert the operator. Therefore, the command timing between the signaling system and the platform door interface is such that the door-opening command continues until the door-closing command is issued, and the door-closing command continues until the doors are completely closed. In existing signaling system designs, to ensure that the platform screen doors (PSDs) do not erroneously open due to receiving a door-opening command from the signaling system when authorizing train departure, the CC will wait for a period of time after sending the last door-opening command to confirm that the PSDs are closed and locked before authorizing train departure. Therefore, in this scenario, the CC will only stop issuing door-opening commands when issuing a door-closing command. This will cause the system to delay authorizing train departure after the train doors are completely closed, severely impacting departure efficiency.

[0003] How to achieve rapid departure of rail transit has become a technical problem that needs to be solved. Summary of the Invention

[0004] The purpose of the present invention is to provide a rapid departure method, electronic equipment and storage medium for rail transit in order to overcome the defects of the above-mentioned prior art.

[0005] First, the professional terms used in the present invention are explained:

[0006] CC: Car Controller

[0007] CI: Computer Interlocking

[0008] OC: Target Controller

[0009] ZLC: Regional Line Center

[0010] The purpose of the present invention can be achieved by the following technical solutions:

[0011] According to one aspect of the present invention, a method for rapid departure of rail transit is provided, the method comprising the following steps:

[0012] Step A: When the train enters the station, CC continuously sends pulsed door opening control commands to CI;

[0013] Step B: After the train opens its doors for passengers to board and alight, the CC stops sending door-opening request commands to the CI and starts the "CC side screen door opening command valid timer", while continuing to send door-closing request commands to the CI.

[0014] Step C: When CI receives the last package of door opening command, it starts the "CI side shield door opening command valid timer";

[0015] Step D: When the "CI side screen door opening command valid timer" ends and the screen door is closed and locked, a door closing feedback command is sent to CC;

[0016] Step E: CC receives the door closing feedback command from CI and determines whether the departure requirements are met. If so, the "CI side screen door opening command valid timer" is bypassed and departure is authorized; otherwise, monitoring continues until the departure requirements are met.

[0017] Preferably, the process of step B is specifically as follows: when CC monitors that the shield door is closed and locked, CC changes the shield door control command sent to CI from "open door" to "close door", and starts the "CC side shield door opening command valid timer" at the same time.

[0018] More preferably, the "CC side screen door opening instruction valid timer" is set according to multiple time factors, wherein the multiple time factors include: the CC communication cycle, the CC to CI communication message validity period, the CI to CC communication message validity period and the maximum delay of the screen door executing the door opening command.

[0019] More preferably, the time factor further includes: ZLC communication validity period, ZLC discrete output maximum time and ZLC discrete input maximum time.

[0020] Preferably, the setting of the "CI side screen door opening command valid timer" is set according to multiple time factors, wherein the multiple time factors include: the communication validity period of ZLC, the maximum delay of PSD executing the door opening command, the maximum time of ZLC discrete output and the maximum time of ZLC discrete input.

[0021] Preferably, the CC determines whether the departure requirements are met based on the monitoring results of the door status, platform door status and gap detection status.

[0022] Preferably, the CC determines that the departure requirements are met when all of the following conditions are met:

[0023] e1) The platform doors are closed and locked;

[0024] e2) The vehicle door is closed and locked;

[0025] e3) The emergency stop button is not activated on the platform;

[0026] e4) There is no vehicle seizure order;

[0027] e5) The clearance monitoring status is "detected and no obstacles".

[0028] Preferably, in the step E, bypassing the "CI side screen door opening command valid timer" includes: setting the "opening command timer bypass" variable to true, and simultaneously clearing the "CC side screen door opening command valid timer" to end the timing.

[0029] Preferably, the step A is specifically as follows: after the train enters the station, the CC sends a "screen door opening request" message to the CI, and after receiving the message, the CI sends a door opening control instruction to the OC and PSD.

[0030] More preferably, the CC determines that the current safe position of the train formation intersects with the platform screen door and establishes communication with the platform screen door, and the CC sends a "platform screen door opening request" message to the CI.

[0031] Preferably, step B further includes: after passengers board and exit the passenger compartment, the CC sends a gap detection request to the CI to prepare for closing the screen door; after the CI starts and performs gap detection, if the detection is normal, it feeds back to the CC a status that the gap monitoring has been detected and there is no obstacle, and the CC sends a message to the CI to change the door opening request to a door closing request.

[0032] According to another aspect of the present invention, an electronic device is provided, comprising a memory and a processor, wherein a computer program is stored in the memory, and the method described above is implemented when the processor executes the program.

[0033] According to a third aspect of the present invention, a computer-readable storage medium is provided, on which a computer program is stored, and when the program is executed by a processor, the method described above is implemented.

[0034] Compared with the prior art, the present invention has the following beneficial effects:

[0035] 1) The present invention shifts the safety timer after a door-opening request is sent from the onboard control (CC) to the computer interlocking (CI). The CI controls the "CI-side screen door opening command valid timer." The CI begins timing after receiving the last door-opening command. When the CI finishes timing and receives a screen door closed and locked message from the OC, it sends a screen door closed and locked message to the CC. Upon receiving the screen door closed and locked message, the CC immediately bypasses the "CC-side screen door opening command valid timer." This reduces the long timer waiting time typically required for safety reasons in existing designs, shortening departure times from 21 seconds to 10.32 seconds, reducing departure intervals, and significantly improving departure efficiency.

[0036] 2) The "CI side shield door opening instruction valid timer" and "CC side shield door opening instruction valid timer" of the application fully consider the communication delay of each module, improve efficiency while considering driving safety.

[0037] 3) The "CI side shield door opening instruction valid timer" and "CC side shield door opening instruction valid timer" of the application consider the communication delay of each module, and the function of each time delay in the product parameters is configurable, suitable for platform door control in different scenes, and the product design scheme has high adaptability and strong universality. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 Fig. 1 is a schematic diagram of the interaction of each module when the platform door is opened and closed in the application;

[0039] Figure 2 Fig. 2 is a schematic diagram of the pulse duration of the opening instruction and the closing instruction in the application;

[0040] Figure 3 Fig. 3 is a schematic diagram of the message interaction of each module in the application;

[0041] Figure 4 Fig. 4 is a schematic diagram of the processing flow of each module from the train entering the station to the train leaving in the application. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the application. Obviously, the described embodiments are part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those of ordinary skill in the art without creative labor should fall within the protection scope of the application.

[0043] Embodiment 1

[0044] This embodiment relates to a rapid departure method for rail transit, like Figure 4 , comprising the following steps:

[0045] Step A: The train enters the station, and the CC continuously sends a pulse type opening instruction to the CI;

[0046] Step B: The train opens the door to pick up and drop off passengers, and after the pick up and drop off are completed, the CC stops sending the opening instruction to the CI, starts the CC side shield door opening instruction valid timer (PSD_opening_Command_Valid_Time), and continuously sends a closing instruction to the CI;

[0047] Step C: When the CI receives the last packet of door opening command, it starts the CI side screen door opening command valid timer (CI_PSD_Opening_Command_Valid_Time);

[0048] Step D: When the CI timer ends and the PSD is closed and locked, a door closing feedback instruction is sent to the CC.

[0049] Step E: CC receives the door closing feedback command from CI and monitors the door status, platform door status, gap detection status, etc. to confirm whether the departure requirements are met;

[0050] Step F: If the CC monitors that each state in step E meets the requirements, the CC side screen door opening command valid timer (PSD_opening_Command_Valid_Time) is bypassed and the train is authorized to depart.

[0051] Step A: As the train approaches the station, the CC continuously sends pulsed door-opening commands to the CI. Specifically, the CC determines that the train's current safe position intersects the PSD zone and establishes communication with the PSD. The CC then sends PSD control information to the CI, commanding the PSD to open the doors. Depending on the configuration, the CC continues to send pulsed door-opening commands until passengers have boarded or disembarked.

[0052] Step B includes: After boarding and disembarking, if the CC monitors the PSD status as closed and locked according to the configured time, the PSD control command sent to the CI is changed from open to close, and the "CC side screen door opening command valid timer" (PSD_opening_Command_Valid_Time) is started. To ensure safety, considering that the CC has confirmed that the PSD will not be mistakenly opened due to the door opening command received from the signal system when authorizing departure, the "CC side screen door opening command valid timer" (PSD_opening_Command_Valid_Time) should take into account the following time factors:

[0053] b1) CC communication cycle;

[0054] b2) Validity period of communication messages from CC to CI;

[0055] b3) ZLC communication validity period;

[0056] b4) Maximum delay for PSD to execute the door opening command;

[0057] b5) ZLC discrete output maximum time;

[0058] b6) ZLC discrete input maximum time;

[0059] b7) Validity period of communication messages from CI to CC.

[0060] Step C specifically includes: When the CI receives the last door opening control command from the CC, it starts the "CI-side platform screen door opening command valid timer" (CI_PSD_Opening_Command_Valid_Time). The "CI-side platform screen door opening command valid timer" (CI_PSD_Opening_Command_Valid_Time) represents the maximum elapsed time from the CI receiving the door opening command, the CI sending the door opening command to the PSD, to the receipt of the platform door in the open state. The following time factors must be considered:

[0061] c1) ZLC communication validity period;

[0062] c2) Maximum delay for PSD to execute the door opening command;

[0063] c3) ZLC discrete output maximum time;

[0064] c4) ZLC discrete input maximum time.

[0065] The specific contents of step D include: when the "CI side platform door opening command valid timer" (CI_PSD_Opening_Command_Valid_Time) is completed, the PSD status is monitored to be closed and locked. At this time, the CI determines that the platform door has been safely closed and sends a closing feedback instruction to the CC. The PSD status is closed and the PSD control command feedback is closed.

[0066] In step E, CC receives the door closing feedback command from CI and monitors the door status, platform door status, and gap detection status to confirm whether the departure requirements are met. The monitoring status includes:

[0067] e1) The platform doors are closed and locked;

[0068] e2) The vehicle door is closed and locked;

[0069] e3) The emergency stop button is not activated on the platform;

[0070] e4) There is no vehicle seizure order;

[0071] e5) The clearance monitoring status is "detected and no obstacles";

[0072] In step F, the CC monitors whether each state meets the requirements, bypasses the "CC side screen door opening command valid timer" (PSD_opening_Command_Valid_Time), and authorizes departure. Specifically, the CC monitors whether each state meets the requirements in step E. If all states meet the conditions, the "door opening command timer bypass" (Door_opening_command_timer_bypass) variable is set to true, and the "CC side screen door opening command valid timer" (PSD_opening_Command_Valid_Time) is cleared. The timing ends, the departure conditions are met, and the CC authorizes departure.

[0073] The rapid departure method described in the present invention is as described above. Based on the original solution, the safety timer after the door opening command is sent is transferred to the computer interlocking (CI). The computer interlocking controls the "CI-side screen door opening command valid timer" CI_PSD_Opening_Command_Valid_Time. The CI begins timing after receiving the last door opening command packet. When the timing ends and the OC receives the PSD closed and locked information, it sends the PSD closed and locked information to the CC. Upon receiving the PSD closed and locked information, the CC immediately bypasses the "CC-side screen door opening command valid timer" (PSD_opening_Command_Valid_Time). This reduces the long timer waiting time designed for safety reasons and improves departure efficiency.

[0074] Example 2

[0075] This embodiment also relates to a rapid departure method for rail transit.

[0076] The interaction between modules during the opening and closing of the platform screen door is as follows: Figure 1 CC sends door opening and closing instructions to CI. After receiving the door opening and closing instructions, CI sends corresponding control instructions to OC and PSD. After completing the door opening and closing operations, PSD feeds back the corresponding PSD status to CI. CI feeds back the PSD status to CC, keeps the train brakes when opening the door, and authorizes the train to depart when closing the door.

[0077] like Figure 3 After the CC sends the last door-opening command, the "CC-side screen door opening command valid timer" starts. Before the present invention's design improvement, the CC had to maintain the train brakes until the "CC-side screen door opening command valid timer" was reset. This meant that the train had to wait 21 seconds after completing boarding and disembarking before it could move, seriously affecting departure efficiency.

[0078] The message interaction process of each module is as follows Figure 3 , including the following steps:

[0079] Step A: CC sends a "PSD door opening request" message to CI. After receiving it, CI sends a door opening control instruction to OC / PSD. The door opening request sent by CC to CI is pulsed and sent continuously.

[0080] The duration of the door opening pulse instruction is as follows Figure 2 , CC needs to continue sending the door opening command until the train opens the door and passengers get on and off, and the boarding and alighting are completed before it can change from sending the door opening command to sending the door closing command.

[0081] Step B: After the PSD performs the door opening operation, it reports the PSD door opening status to the CI, and passengers complete boarding and disembarking at the platform. After boarding and disembarking are complete, the CC sends a gap detection request to the CI to prepare for the PSD door closing. After the CI starts and performs gap detection, it reports the gap monitoring status to the CC, indicating that it has been detected and is unobstructed. The CC then sends a message to the CI, changing the door opening request to a door closing request. Simultaneously, the CC starts the "CC-side screen door opening command valid timer" (PSD_opening_Command_Valid_Time), which lasts approximately 21 seconds.

[0082] The calculation of “CC side screen door opening command valid timer” is shown in Table 1.

[0083] Table 1

[0084]

[0085] Step C: When the CI receives a PSD request from the CC to change from opening to closing, it starts the "CI-side screen door opening command valid timer" for approximately 8.8 seconds. Simultaneously, the CI sends a closing control command to the OC and the screen door PSD. During the timer, the PSD completes the closing operation and feeds back the closing status to the CI.

[0086] Step D: After the CI side platform door opening command valid timer expires, that is, after 8.82 seconds, and the CI receives a status message from the platform door indicating that the platform door is closed and locked, it sends a door closing feedback command to the CC.

[0087] See 2 for the calculation of the “CI side shield door opening command valid timer”.

[0088] Table 2

[0089]

[0090] Step E: CC receives the door closing feedback command from CI and, in combination with the previously determined gap detection status, door status, and platform door status, confirms whether the departure conditions are met;

[0091] Step F: CC monitors each status to see if it meets the requirements, resets the PSD_opening_Command_Valid_Time timer, determines that the departure conditions are met, and authorizes departure.

[0092] In this instance, if Figure 1 ,The interaction process of each module when the platform door is opened or closed includes:

[0093] Step A1: CC continuously sends door opening and closing requests to CI;

[0094] Step A2: The CI sends a door opening and closing control command to the OC. After boarding and disembarking, the CC stops sending the door opening command to the CI and starts the CC-side screen door opening command valid timer (PSD_opening_Command_Valid_Time). At the same time, the CC continues sending the door closing command to the CI.

[0095] Step A3: OC sends a door opening and closing control instruction to the screen door PSD;

[0096] Step A4: After the PSD performs the door opening and closing operation, it sends a door opening and closing status feedback instruction to the OC;

[0097] Step A5: OC sends a door opening and closing status feedback instruction to CI;

[0098] Step A6: CI sends the monitoring detection result or door closing feedback instruction to CC.

[0099] The time from CC sending the last door opening command to authorized departure is: Figure 1 The time of step A1 shown + "CI side shield door opening command valid timer" + step A6 time:

[0100] 1) Time of step A1: The time it takes for CC to send the message to CI, estimated to be 1 second, corresponding to Figure 4 The time required for step A;

[0101] 2) "CI side screen door opening command valid timer" is 8.82 seconds, corresponding to Figure 4 The time required for step B in

[0102] 3) Step A6 time: Considering CC cycle + Data Communication System (DCS) communication delay, it is estimated to be 0.5 seconds; corresponding Figure 4 The time required for steps C to F in the above example.

[0103] Therefore, the time from the time CC sends the last door-opening command to the time the vehicle is authorized to depart is estimated to be: 1 second + 8.82 seconds + 0.5 seconds = 10.32 seconds, which doubles the departure efficiency of the original solution of 21 seconds.

[0104] Example 3

[0105] The electronic device of the present invention includes a central processing unit (CPU), which can perform various appropriate actions and processes according to computer program instructions stored in a read-only memory (ROM) or loaded from a storage unit into a random access memory (RAM). In the RAM, various programs and data required for device operation can also be stored. The CPU, ROM, and RAM are connected to each other via a bus. An input / output (I / O) interface is also connected to the bus.

[0106] Many components in a device are connected to the I / O interface, including: input units, such as a keyboard and mouse; output units, such as various types of displays and speakers; storage units, such as magnetic disks and optical disks; and communication units, such as network cards, modems, and wireless communication transceivers. The communication unit allows the device to exchange information / data with other devices via computer networks such as the Internet and / or various telecommunication networks.

[0107] The processing unit performs the various methods and processes described above. For example, in some embodiments, the method can be implemented as a computer software program, which is tangibly contained in a machine-readable medium, such as a storage unit. In some embodiments, part or all of the computer program can be loaded and / or installed on the device via a ROM and / or a communication unit. When the computer program is loaded into RAM and executed by the CPU, one or more steps of the method described above can be performed. Alternatively, in other embodiments, the CPU can be configured to execute the method in any other appropriate manner (e.g., by means of firmware).

[0108] The functions described above herein may be performed, at least in part, by one or more hardware logic components. For example, and without limitation, exemplary types of hardware logic components that may be used include: field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chip (SOCs), complex programmable logic devices (CPLDs), and the like.

[0109] The program code for implementing the method of the present invention can be written in any combination of one or more programming languages. Such program code can be provided to a processor or controller of a general-purpose computer, a special-purpose computer, or other programmable data processing device so that when the program code is executed by the processor or controller, the functions / operations specified in the flow chart and / or block diagram are implemented. The program code can be executed entirely on the machine, partially on the machine, as a stand-alone software package, partially on the machine and partially on a remote machine, or entirely on a remote machine or server.

[0110] In the context of the present invention, machine-readable medium can be a tangible medium that can contain or store a program for use with an instruction execution system, device or equipment or used in combination with an instruction execution system, device or equipment. Machine-readable medium can be a machine-readable signal medium or a machine-readable storage medium. Machine-readable medium can include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared or semiconductor systems, devices or equipment, or any suitable combination of the foregoing. More specific examples of machine-readable storage media can include electrical connections based on one or more lines, portable computer disks, hard disks, random access memories (RAM), read-only memories (ROM), erasable programmable read-only memories (EPROM or flash memory), optical fibers, portable compact disk read-only memories (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing.

[0111] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A rapid departure method for rail transit, characterized in that: The method comprises the following steps: Step A: When the train enters the station, CC continuously sends pulsed door opening commands to CI; Step B: After the train opens its doors for boarding and disembarking, the CC stops sending door-opening commands to the CI and starts a "CC-side platform screen door opening command validity timer," while continuing to send door-closing request commands to the CI. The "CC-side platform screen door opening command validity timer" is set based on multiple time factors, including the CC's communication cycle, the validity period of the CC-to-CI communication message, the validity period of the CI-to-CC communication message, and the maximum delay for the platform screen door to execute the door-opening command. Step C: When CI receives the last package of door opening command, it starts the "CI side shield door opening command valid timer"; Step D: When the "CI side screen door opening command valid timer" expires and the screen door closed and locked status feedback is received from the OC, a door closing feedback command is sent to the CC; the "CI side screen door opening command valid timer" is set based on multiple time factors, wherein the multiple time factors include: the communication validity period of the ZLC, the maximum delay of the PSD in executing the door opening command, the maximum time of the ZLC discrete output, and the maximum time of the ZLC discrete input; Step E: CC receives the door closing feedback command from CI and determines whether the departure requirements are met. If so, the "CI side screen door opening command valid timer" is bypassed and departure is authorized; otherwise, monitoring continues until the departure requirements are met.

2. A rapid departure method for rail transit according to claim 1, characterized in that: The process of step B is as follows: when CC monitors that the shield door is closed and locked, CC changes the shield door control command sent to CI from "open door" to "close door", and starts the "CC side shield door opening command valid timer".

3. A rapid departure method for rail transit according to claim 1, characterized in that: The time factor also includes: the communication validity period of the ZLC, the maximum time of the ZLC discrete output and the maximum time of the ZLC discrete input.

4. A rapid departure method for rail transit according to claim 1, characterized in that: CC determines whether the departure requirements are met based on the monitoring results of the door status, platform door status and gap detection status.

5. A rapid departure method for rail transit according to claim 1, characterized in that: When all of the following conditions are met, CC determines that the departure requirements are met: e1) The platform doors are closed and locked; e2) The vehicle door is closed and locked; e3) No emergency stop button is activated on the platform; e4) No vehicle seizure order; e5) The clearance monitoring status is "Detected and no obstacles".

6. A rapid departure method for rail transit according to claim 1, characterized in that: In the step E, bypassing the "CI side screen door opening command valid timer" includes: setting the "opening command timer bypass" variable to true, and simultaneously clearing the "CC side screen door opening command valid timer" to end the timing.

7. A rapid departure method for rail transit according to claim 1, characterized in that: The specific step A is as follows: after the train enters the station, CC sends a "screen door opening request" message to CI, and after receiving it, CI sends a door opening instruction to OC and PSD.

8. A rapid departure method for rail transit according to claim 7, characterized in that: The CC determines that the current safe position of the train formation intersects with the platform screen door and establishes communication with the platform screen door. The CC sends a "platform screen door opening request" message to the CI.

9. A rapid departure method for rail transit according to claim 1, characterized in that: The step B further includes: after the passengers are boarded or dropped off, the CC sends a gap detection request to the CI to prepare for closing the screen door; after the CI starts and performs the gap detection, if the detection is normal, it feeds back to the CC that the gap monitoring has been detected and there is no obstacle, and the CC sends a message to the CI to change the door opening request to a door closing request.

10. An electronic device comprising a memory and a processor, wherein a computer program is stored in the memory, wherein: When the processor executes the program, the method according to any one of claims 1 to 9 is implemented.

11. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the method according to any one of claims 1 to 9 is implemented.

Images