Rapid departure method for rail transit, electronic equipment and storage medium

Abstract

The invention relates to a rapid departure method for rail transit, electronic equipment and a storage medium, and the method comprises the following steps: a train enters a station, and a CC continuously sends a pulse-type door opening control instruction to a CI; after the train opens the door to get on and off passengers and the passengers get on and off the train are completed, the CC stops sending the door opening request instruction to the CI, starts a CC-side screen door opening instruction effective timer, and continuously sends a door closing request instruction to the CI at the same time; when the CI receives the last packet of door opening instruction, a CI side shielding door opening instruction effective timer is started; when the CI-side shielding door opening instruction effective timer ends, receiving state feedback of shielding door closing and locking from the OC, and sending a door closing feedback instruction to the CC; and the CC receives the door closing feedback instruction of the CI and judges whether the departure requirement is met or not, and if yes, the CI side shielding door opening instruction effective timer is bypassed to authorize departure. Compared with the prior art, the method has the advantages of short departure interval, high universality, safety and the like.

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] At present, there are more and more urban rail transit reconstruction projects, but some projects do not include the reconstruction of platform screen doors (PSD: Platform Screen Doors) in the reconstruction scope, which leads to a certain delay problem in the management method of platform screen doors. In some reconstruction projects, when the platform door is in the open state, if there is no door opening command, an alarm will be issued to prompt the operator. Therefore, the requirement of this project is that the command timing of the signal system and the platform door interface adopts the door opening command to continue until the door closing command is issued, and the door closing command continues until the door is closed. In the existing signal system design scheme, in order to ensure that when the on-board controller (CC) authorizes the departure, it is confirmed that the platform screen door will not be mistakenly opened due to the door opening command received from the signal system. After the CC sends the last packet of door opening command, it will determine that the PSD is closed and locked after a period of time. Only then will the CC authorize the train to depart. Therefore, in this project scenario, the CC stops sending the door opening command when sending the door closing command. After sending the door closing command, the system will delay for a period of time before authorizing the train to depart after the train door is closed, which seriously affects the 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 overcome the defects of the above-mentioned prior art and provide a fast departure method, electronic equipment and storage medium for rail transit.

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

[0006] CC: Car Controller

[0007] CI: Computer Interlocking

[0008] OC: Object 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 instructions to CI;

[0013] Step B: After the train opens its doors for boarding and disembarking, CC stops sending door opening request instructions to CI and starts the "CC side screen door opening instruction valid timer", while continuing to send door closing request instructions to 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 shield door opening command valid timer" ends and the shield door closed and locked status feedback is received from the OC, a closing feedback command is sent to the CC;

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

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

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

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

[0020] Preferably, the setting of the "CI side shield door opening command effective 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, when all of the following conditions are met, CC determines that the departure requirements are met:

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

[0024] e2) The vehicle doors are closed and locked;

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

[0026] e4) There is no order to seize the vehicle;

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

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

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

[0030] More preferably, the CC determines that the current safety 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 also includes: after passengers get on and off, CC sends a gap detection request to CI to prepare for closing the shield door; after CI starts and executes gap detection, if the detection is normal, it feeds back to CC that the gap monitoring has been detected and there is no obstacle, and CC sends a message to CI to change the door opening request to the door closing request.

[0032] According to another aspect of the present invention, an electronic device is provided, including 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, there is provided a computer-readable storage medium having a computer program stored thereon, wherein the program implements the method described above when executed by a processor.

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

[0035] 1) The present invention sinks the safety timer after sending the door opening request instruction from the vehicle control (CC) to the computer interlocking (CI), and the computer interlocking card controls the "CI side screen door opening instruction effective timer". The CI starts timing after receiving the last package of door opening instruction. When the timing ends and the screen door closing and locking information is received from the OC, the screen door closing and locking information is sent to the CC. After the CC receives the screen door closing and locking information, the "CC side screen door opening instruction effective timer" is immediately bypassed, thereby reducing the long timer waiting time designed for safety reasons in the existing design, shortening the departure time from 21s to 10.32s, reducing the departure interval, and greatly improving the departure efficiency.

[0036] 2) The "CI side screen door opening command effective timer" and the "CC side screen door opening command effective timer" of the present invention fully consider the communication delay of each module, improve efficiency and take into account driving safety at the same time.

[0037] 3) The "CI side screen door opening instruction effective timer" and "CC side screen door opening instruction effective timer" of the present invention take into account the communication delay of each module. The function of each delay in the product parameters is configurable, which is suitable for platform door control in different scenarios. The product design scheme has high adaptability and strong versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 This is a schematic diagram of the interaction scene of each module when the platform door is opened or closed in the present invention;

[0039] Figure 2 This is a schematic diagram of the pulse duration of the door opening command and the door closing command in the present invention;

[0040] Figure 3 This is a schematic diagram of message interaction among modules of the present invention;

[0041] Figure 4 It is a schematic diagram of the processing flow of each module from train entry to train departure in the present invention. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0043] Example 1

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

[0045] Step A: When the train enters the station, CC continuously sends pulse door opening commands to CI;

[0046] Step B: The train opens its doors to board and disembark passengers. After boarding and disembarking, CC stops sending door opening commands to CI and starts the CC side screen door opening command valid timer (PSD_opening_Command_Valid_Time), while continuing to send door closing commands to CI.

[0047] Step C: When CI receives the last packet of door opening command, it starts the CI side shield 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 status feedback is received from the OC, 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 departure is authorized.

[0051] Step A: When the train enters the station, CC continuously sends pulse door opening commands to CI, which includes: CC determines that the current safety position of the train formation intersects with the PSD area and establishes communication with the PSD device, CC sends PSD control information to CI, and the control command to PSD is to open the door. According to the configuration, the pulse door opening command sent by CC continues until the train passengers are boarded and disembarked.

[0052] Step B includes: after the completion of boarding and disembarking, according to the configured time, the CC monitors the PSD status to be closed and locked, then the PSD control command sent to the CI is changed from opening the door to closing the door, and the "CC side screen door opening command valid timer" (PSD_opening_Command_Valid_Time) is started at the same time; to ensure safety, considering that when the CC authorizes the departure, it has been confirmed that the PSD will not be opened by mistake due to the door opening command received from the signal system, the time of the "CC side screen door opening command valid timer" (PSD_opening_Command_Valid_Time) needs to consider 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] The specific contents of step C include: CI starts the "CI side screen door opening command valid timer" (CI_PSD_Opening_Command_Valid_Time) when it receives the last package of door opening control command from CC. "CI side screen door opening command valid timer" (CI_PSD_Opening_Command_Valid_Time) represents the maximum time from CI receiving the door opening command, CI sending the door opening command to PSD to receiving the platform door state opening state, and the following time factors need to 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 content of step D includes: when the "CI side screen door opening command valid timer" (CI_PSD_Opening_Command_Valid_Time) is completed, the status of PSD is monitored to be closed and locked at the same time. At this time, CI determines that the platform door has been safely closed and sends a closing feedback instruction to CC. The status of PSD 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, gap detection status, etc. 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 doors are closed and locked;

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

[0070] e4) There is no order to seize the vehicle;

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

[0072] In step F, 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, which specifically includes: CC monitors whether each state in step E meets the requirements. If each state meets 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 CC authorizes departure.

[0073] The process of the fast departure method described in the present invention is as described above. On the basis of the original scheme, the safety timer after sending the door opening command is sunk to the computer interlocking (CI), and the computer interlocking card controls the "CI side screen door opening command valid timer" CI_PSD_Opening_Command_Valid_Time. The CI starts timing after receiving the last package of door opening command. When the timing ends and the PSD closing and locking information is received from the OC, the PSD closing and locking information is sent to the CC. After the CC receives the PSD closing and locking information, the "CC side screen door opening command valid timer" (PSD_opening_Command_Valid_Time) is immediately bypassed, thereby reducing the longer timer waiting time designed for safety reasons and improving the departure efficiency.

[0074] Example 2

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

[0076] The interaction between the 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 packet of door opening command, the "CC side screen door opening command valid timer" starts. Before the design improvement of the present invention, the CC needs to keep the train braked before the "CC side screen door opening command valid timer" is reset, that is, the train needs to wait for 21 seconds before it can start after completing boarding and disembarking, which seriously affects the 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 the message, 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 command is shown in the figure below: 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 will feedback the PSD door opening status to CI, and passengers will complete boarding and disembarking at the platform. After boarding and disembarking, CC will send a gap detection request to CI to prepare for PSD door closing. After CI starts and performs gap detection, it will feedback to CC that the gap monitoring has been detected and there is no obstacle. CC will send a message to CI to change the door opening request to the door closing request. At the same time, CC will start the "CC side PSD door opening command valid timer" (PSD_opening_Command_Valid_Time). This timer is about 21 seconds.

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

[0083] Table 1

[0084]

[0085] Step C: When CI receives the PSD request from CC to change from door opening to door closing, it starts the "CI side screen door opening instruction effective timer", which lasts for about 8.8 seconds; at the same time, CI sends a door closing control instruction to OC and screen door PSD. During the timer, PSD completes the door closing operation and feeds back the door closing status to CI;

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

[0087] For the calculation of “CI side shield door opening command valid timer”, see 2.

[0088] Table 2

[0089]

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

[0091] Step F: CC monitors each status to meet the requirements, clears the PSD_opening_Command_Valid_Time timer, determines that the departure conditions are met, and authorizes departure.

[0092] In this example, if Figure 1 ,The interaction process of each module when the platform opens and closes the door includes:

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

[0094] Step A2: CI sends a door opening and closing control command to OC. After passengers are boarded or dropped off, CC stops sending door opening commands to CI and starts the CC side screen door opening command valid timer (PSD_opening_Command_Valid_Time), while continuing to send door closing commands to CI.

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

[0096] Step A4, after the shielding door PSD performs the door opening and closing operation, it sends a door opening and closing state 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 when CC sends the last door opening command to when the vehicle is authorized to depart is: Figure 1 The time of step A1 shown + "CI side shield door opening command effective timer" + step A6 time:

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

[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 .

[0103] Therefore, the estimated time from when CC sends the last door opening command to when the vehicle is authorized to depart is: 1 second + 8.82 seconds + 0.5 seconds = 10.32 seconds, which doubles the departure efficiency compared to 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] Multiple components in the device are connected to the I / O interface, including: input units, such as keyboards, mice, etc.; output units, such as various types of displays, speakers, etc.; storage units, such as disks, optical disks, etc.; and communication units, such as network cards, modems, wireless communication transceivers, etc. The communication unit allows the device to exchange information / data with other devices through 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 perform 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, 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 chips (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. These program codes 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 the program code, when executed by the processor or controller, enables the functions / operations specified in the flow chart and / or block diagram to be implemented. The program code can be executed entirely on the machine, partially on the machine, partially on the machine and partially on a remote machine as a stand-alone software package, or entirely on a remote machine or server.

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

[0111] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope 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 control instructions to CI; Step B: After the train opens its doors for boarding and disembarking, CC stops sending door opening request instructions to CI and starts the "CC side screen door opening instruction valid timer", while continuing to send door closing request instructions to CI; 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 shield door opening command valid timer" ends and the shield door closed and locked status feedback is received from the OC, a closing feedback command is sent to the CC; Step E: CC receives the door closing feedback command from CI and determines whether the departure requirements are met. If yes, the "CI side screen door opening command valid timer" is bypassed to authorize departure; otherwise, it continues to monitor 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 specifically as follows: when CC monitors that the shield door is closed and locked, the shield door control command sent by CC to CI is changed from "open door" to "close door", and the "CC side shield door opening command valid timer" is started at the same time.

3. A rapid departure method for rail transit according to claim 2, characterized in that: The "CC side screen door opening command effective timer" is set according to multiple time factors, wherein the multiple time factors include: CC communication cycle, CC to CI communication message validity period, CI to CC communication message validity period and the maximum delay of the screen door executing the door opening command.

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

5. A rapid departure method for rail transit according to claim 1, characterized in that: The setting of the "CI side shield door opening command effective 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.

6. 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.

7. 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 doors are closed and locked; e3) The emergency stop button is not activated on the platform; e4) There is no order to seize the vehicle; e5) The gap monitoring status is "detected and no obstacles".

8. 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 instruction valid timer" includes: setting the "opening command timer bypass" variable to true, and at the same time clearing the "CC side screen door opening instruction valid timer" to end the timing.

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

10. A rapid departure method for rail transit according to claim 9, characterized in that: CC determines that the current safety position of the train formation intersects with the platform shielding door and establishes communication with the platform shielding door. CC sends a "platform shielding door opening request" message to CI.

11. A rapid departure method for rail transit according to claim 1, characterized in that: The step B also includes: after the passengers get on and off, the CC sends a gap detection request to the CI to prepare for the closing of the shield door; after the CI starts and executes 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 the door closing request.

12. 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 11 is implemented.

13. 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 11 is implemented.

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