Rail transit platform door network control system and control method

Abstract

A rail transit platform door network control system and control method, the control system includes a central control panel and multiple door controller units, the central control panel includes a first control module and a second control module, the door controller units include multiple first door controller units for controlling first-side platform doors and multiple second door controller units for controlling second-side platform doors; the first control module connects the multiple first door controller units and multiple second door controller units via a first bus, and the second control module connects the multiple first door controller units and multiple second door controller units via a second bus; the first control module and the second control module are mutually redundant and control the multiple first door controller units and multiple second door controller units simultaneously. The two sets of control modules of the present invention are mutually redundant. When one control module fails, the other set of control modules can still control without affecting operations on both sides; bus communication is adopted between the central control panel and the door controller units, simplifying the control interface.

Description

Technical Field

[0001] The present invention relates to the field of rail transportation, and more particularly, to a rail transportation platform door network control system and a control method. Background Art

[0002] The rail transit platform door control system mainly consists of the PSC (central control panel) and the PSL (local control panel). The platform door opening and closing commands are sent to the platform door PSC through the signal system. After receiving and processing the opening and closing commands, the PSC controls the DCU (door controller unit) to drive the door motor to automatically open and close the platform door. The PSL is used to manually operate the platform door to achieve manual opening and closing when the signal system fails or the platform door needs to be opened and closed manually. The current PSC uses a single-side platform door as the control unit. The PSC is equipped with a set of control units on the upper and lower sides to control the upper and lower platform doors respectively. If the control unit on one side fails, the platform door on the corresponding side will not be able to operate normally and automatically. Summary of the Invention

[0003] The Summary of the Invention introduces a series of simplified concepts that will be further described in the Detailed Description of the Invention. The Summary of the Invention is not intended to limit the key features and essential features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0004] In view of the shortcomings of the existing technology, the first aspect of the embodiment of the present invention provides a rail transit platform door network control system, including a central control panel and multiple door controller units, wherein:

[0005] The central control panel includes a first control module and a second control module, and the door controller unit includes a plurality of first door controller units for controlling the first side platform door and a plurality of second door controller units for controlling the second side platform door;

[0006] The first control module is connected to the plurality of first gate controller units and the plurality of second gate controller units via a first bus, and the second control module is connected to the plurality of first gate controller units and the plurality of second gate controller units via a second bus;

[0007] The first control module and the second control module are redundant with each other. The first control module controls the multiple first gate controller units and the multiple second gate controller units through the first bus. At the same time, the second control module controls the multiple first gate controller units and the multiple second gate controller units through the second bus.

[0008] In one embodiment, the system further comprises a local control panel, which is directly connected to the plurality of door controller units to control the plurality of door controller units.

[0009] In one embodiment, the local control panel is directly connected to the plurality of door controller units via hard lines.

[0010] In one embodiment, the local control panel includes a first local control panel and a second local control panel, the first local control panel is connected to the plurality of the first door controller units via a first hard line, and the second local control panel is connected to the plurality of the second door controller units via a second hard line.

[0011] In one embodiment, the local control panel is further connected to the first bus and / or the second bus to obtain status data of the first door controller unit and the second door controller unit through the first bus and / or the second bus.

[0012] In one embodiment, the first control module includes a first programmable controller and at least one first switch, the second control module includes a second programmable controller and at least one second switch, the first programmable controller is connected to the first bus, and the second programmable controller is connected to the second bus; the first switch and the second switch are used to connect to the signal system and the integrated monitoring system.

[0013] In one embodiment, the central control panel further includes a monitoring host, and the first switch and the second switch are respectively connected to the monitoring host.

[0014] In one embodiment, the first control module and the second control module also include a network card, which is used to enable the first programmable controller and the second programmable controller to communicate with the integrated monitoring system via Ethernet to send platform door status data to the integrated monitoring system; the first programmable controller and the second programmable controller receive commands sent by the signal system through their own network ports and send platform door status data to the signal system.

[0015] A second aspect of an embodiment of the present invention provides a rail transit platform door network control method, the method comprising:

[0016] The central control panel receives messages sent by the signal system through the network;

[0017] After receiving the message sent by the signal system, the first control module and the second control module inside the central control panel respectively verify the accuracy of the message. If the verification fails, the message is discarded. If the verification passes, the first control module and the second control module respectively send the message to the door controller unit;

[0018] After receiving the message, the door controller unit verifies the messages sent by the first control module and the second control module respectively, and discards the messages that fail the verification;

[0019] If the verification passes, the gate controller unit determines whether the verified message is a new message, and if it is determined that the message is a new message, executes the command of the new message; if it is determined that the message is an old message, discards the message.

[0020] In one embodiment, determining whether the message that passes verification is a new message includes:

[0021] When the door controller unit determines that the sequence numbers of the messages sent by the first control module and the second control module are the same, the message that arrives first is determined as the new message, and the message that arrives later is determined as the old message.

[0022] The rail transit platform door network control system of the embodiment of the present invention controls the platform doors on both sides as units. The two sets of control modules are redundant with each other. When one control module fails, the other set of control modules can still provide control without affecting the operations on both sides. Bus communication is adopted between the central control panel and the door controller unit, which simplifies the control interface. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and other objects, features, and advantages of the present invention will become more apparent through a more detailed description of the embodiments of the present invention with reference to the accompanying drawings. The accompanying drawings are provided to provide a further understanding of the embodiments of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and are not intended to limit the present invention. In the drawings, the same reference numerals generally represent the same components or steps.

[0024] Figure 1 This is a schematic diagram of the current rail transit platform door network control system;

[0025] Figure 2 Schematic diagram of a rail transit platform door network control system according to one embodiment of the present invention;

[0026] Figure 3 The figure is a schematic flow chart of a rail transit platform door network control method according to the present invention. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the present application more apparent, the following is a detailed description of example embodiments of the present application with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application, and it should be understood that the present application is not limited to the example embodiments described herein. Based on the embodiments of the present application described in this application, all other embodiments obtained by those skilled in the art without creative work should fall within the scope of protection of this application.

[0028] In the following description, a large number of specific details are provided to provide a more thorough understanding of the present application. However, it will be apparent to those skilled in the art that the present application can be implemented without one or more of these details. In other examples, some technical features well known in the art are not described in order to avoid confusion with the present application.

[0029] It should be understood that the present application can be implemented in different forms and should not be interpreted as being limited to the embodiments set forth herein. On the contrary, providing these embodiments will make the disclosure thorough and complete and will fully convey the scope of the present application to those skilled in the art.

[0030] The purpose of the terms used herein is only to describe specific embodiments and is not intended to limit the present application. When used herein, the singular forms "a", "an", and "the" are intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "comprising" and / or "including", when used in this specification, determine the presence of the features, integers, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, parts and / or groups. When used herein, the term "and / or" includes any and all combinations of the relevant listed items.

[0031] In order to fully understand the present application, a detailed structure will be provided in the following description to illustrate the technical solution proposed by the present application. The optional embodiments of the present application are described in detail below. However, in addition to these detailed descriptions, the present application may also have other implementation methods.

[0032] Figure 1 This is a schematic diagram of the existing rail transit platform door network control system. The control system mainly includes the following features:

[0033] (1) With the platform door on one side as the control unit, the PSC is equipped with a set of control units on the upper and lower sides to control the upper and lower platform doors respectively. Although the failure of the control unit on one side does not affect the operation of the other side, the platform door on the faulty side cannot operate normally automatically;

[0034] (2) PSC controls the DCU through hard-wired control to drive the door motor to open and close the door. Its disadvantages are: first, when achieving the isolation between the train door and the platform door, the isolation information needs to be transmitted to the signal system through integrated monitoring, which is not as safe as direct communication with the signal system; second, hard-wired control requires the configuration of I / O ports and the layout of cables, which is relatively cumbersome.

[0035] (3) PSL is connected to PSC through a hard line. The PSL control function is processed by PSC to control the DCU to drive the door motor to realize manual door opening and closing. When PSC fails, PSL cannot manually control the platform door opening and closing.

[0036] In order to solve the above problems, the embodiment of the present invention proposes a rail transit platform door network control system, see Figure 2 , Figure 2 This is a schematic diagram of a rail transit platform door network control system according to an embodiment of the present invention, which includes: a central control panel 210 and multiple door controller units 220, wherein: the central control panel 210 includes a first control module 211 and a second control module 212, and the door controller units 220 include multiple first door controller units for controlling first-side platform doors and multiple second door controller units for controlling second-side platform doors; the first control module 211 connects the multiple first door controller units and the multiple second door controller units through a first bus, and the second control module 212 connects the multiple first door controller units and the multiple second door controller units through a second bus; the first control module 211 and the second control module 212 are redundant with each other, the first control module 211 controls the multiple first door controller units and the multiple second door controller units through the first bus, and at the same time, the second control module 212 controls the multiple first door controller units and the multiple second door controller units through the second bus.

[0037] The rail transit platform door network control system of the embodiment of the present invention controls the platform doors in units of platform doors on both sides. Two sets of control modules (a first control module 211 and a second control module 212) are configured in the central control panel 210. The two sets of control modules control the platform doors on both sides at the same time and are redundant to each other. When one set of control modules fails, the other set of control modules can still control the platform doors on both sides without affecting the operation of the platform doors on both sides; bus communication is used between the central control panel 210 and the door controller unit 220 to realize functions such as opening and closing doors, and isolating positions, eliminating hard-wired control, eliminating the need to deploy cables, simplifying the control interface, and having advantages in maintenance and cost.

[0038] The central control panel 210 is equipped with two control modules, each connected to the signaling system and the integrated monitoring system, achieving physical isolation and improving data security. The signaling system controls the door controller unit 220 through the central control panel 210 to open, close, and isolate doors. The first control module 211 and second control module 212 of the central control panel 210 also collect status information and alarm information from the door controller units on both sides via the first and second buses, respectively. For example, after a train stops at a platform, the train's signaling system issues a signal to open the platform doors. The central control panel 210 controls the platform doors through the door controller unit 220, then feeds back a signal indicating the doors are open to the signaling system. Before the train departs, the train's signaling system issues a signal to close the platform doors. The central control panel 210 controls the platform doors through the door controller unit 220, then feeds back a signal indicating the doors are closed to the signaling system, allowing the train to depart. The central control panel 210 also includes a monitoring host, which displays specific platform door status and fault information.

[0039] Continue to refer to Figure 2 In one embodiment, the first control module 211 and the second control module 212 have identical configurations. Specifically, the first control module 211 includes a first programmable controller (PLC1) and at least one first switch, while the second control module includes a second programmable controller (PLC2) and at least one second switch. The first programmable controller PLC1 is connected to the first bus and simultaneously connects to the first and second door controllers via the first bus. The second programmable controller PLC2 is connected to the second bus and simultaneously connects to the first and second door controllers via the second bus. In other words, each door controller on each side is connected to both the first and second buses, and thus receives control instructions from both the first and second programmable controllers PLC1 and PLC2 simultaneously. The first and second programmable controllers PLC1 and PLC2 are redundant, operating in parallel. The control instructions issued by each PLC have the same security level. The door controller receives both sets of control instructions and selects one to execute according to a preset logic. For example, the door controller may execute the control instruction received first. In this way, when one of the two programmable controllers fails, the other can continue to control the platform doors on both sides without switching time, effectively ensuring the safety of the rail transit system. For example, the first programmable controller PLC1 and the second programmable controller PLC2 are safety-type PLCs.

[0040] The first control module 211 and the second control module 212 are also connected to the signaling system to receive messages such as door opening / closing or alignment isolation messages from the signaling system. For example, the first switch of the first control module 211 and the second switch of the second control module 212 are also used to connect to the signaling system and the integrated monitoring system. Furthermore, the monitoring host and the integrated monitoring system share the same first and second switches, while the signaling system connects to a different switch to enhance communication security between the platform door system and the signaling system.

[0041] In some embodiments, the first control module and the second control module further include a network card, which is used to enable the first programmable controller and the second programmable controller to communicate with the integrated monitoring system via Ethernet to send the platform door status data to the integrated monitoring system. The first programmable controller and the second programmable controller receive commands sent by the signal system through their own network ports and send the platform door status data to the signal system. Figure 2 The switch connected to the signaling system is directly connected to the network port of the programmable controller itself; the switch connected to the integrated monitoring system is connected to a network card. This network card physically isolates the integrated monitoring system from the first and second programmable controllers, preventing the integrated monitoring system and the signaling system from simultaneously connecting to the programmable controller's own network port. The network card-based security protection function improves the security of communication between the platform door and the integrated monitoring system, thereby improving the security of communication between the platform door system and the signaling system. For example, the signaling system sends control signals for door opening, door closing, and alignment isolation to the first and second switches via Ethernet. The first switch sends the control signal to the first programmable controller PLC1, and the second switch sends the control signal to the second programmable controller PLC2. The first and second programmable controllers PLC1 and PLC2 then send control signals to the first and / or second door controller units in parallel. For example, the first and second programmable controllers PLC1 and PLC2 simultaneously send door opening commands to the upstream door controller unit 220, and the door controller unit 220 executes the control command received first.

[0042] Furthermore, the rail transit platform door network control system according to an embodiment of the present invention also includes a local control panel 230, which is directly connected to the multiple door controller units 220, for example, via hardwired connections, to control the multiple door controller units 220. The local control panel is a combination of electrical switches on the platform side that controls the operation of the platform doors. This allows station staff and train drivers to operate the platform doors in the event that the central control panel fails. For example, station staff can use the local control panel 230 to issue a door-opening command to the door controller units 220, which then control the platform doors to open.

[0043] The local control panel 230 of the embodiment of the present invention is not controlled by the central control panel 210, but is directly connected to the door controller unit 220 for control. When the central control panel 210 fails, the control of the local control panel 230 is not affected, thereby improving the system operation reliability.

[0044] In some embodiments, the local control panel 230 includes a first local control panel and a second local control panel. The first local control panel is connected to multiple first door controller units through a first hard wire, and the second local control panel is connected to multiple second door controller units through a second hard wire. The local control panels 230 on both sides control the platform doors on both sides respectively without affecting each other.

[0045] Furthermore, the local control panel 230 is connected to the first bus and / or the second bus to obtain status data of the first and second door controller units via the first and / or second buses. It should be noted that the local control panel 230 obtains status data of the door controller units via the first and / or second buses, which can be displayed on the monitor of the local control panel 230; control commands are transmitted via a hardwired connection and do not pass through the bus.

[0046] Exemplarily, the rail transit platform door network control system further includes other modules such as SIG (trackside connector) and IBP (integrated backup disk), which are not limited in the embodiment of the present invention.

[0047] To sum up, the two control modules in the rail transit platform door network control system of the embodiment of the present invention are redundant. When one control module fails, the other control module can still provide control without affecting the operations on both sides. Bus communication is adopted between the central control panel and the door controller unit, which simplifies the control interface.

[0048] The embodiment of the present invention also provides a rail transit platform door network control method, referring to Figure 3 The rail transit platform door network control method 300 includes the following steps:

[0049] In step S310, the central control panel receives a message sent by the signal system through the network;

[0050] In step S320, after receiving the message sent by the signal system, the first control module and the second control module in the central control panel respectively verify the accuracy of the message. If the verification fails, the message is discarded. If the verification passes, the first control module and the second control module respectively send the message to the door controller unit.

[0051] In step S330, after receiving the message, the door controller unit verifies the messages sent by the first control module and the second control module respectively, and discards the messages that fail the verification;

[0052] In step S340, if the verification passes, the gate controller unit determines whether the verified message is a new message. If it is determined that the message is a new message, the command of the new message is executed; if it is determined that the message is an old message, the message is discarded.

[0053] The rail transit platform door network control method 300 of the embodiment of the present invention is mainly used to realize the signal system to control the opening / closing of the platform door or the isolation of the platform door, etc. The rail transit platform door network control method 300 is implemented in the rail transit platform door network control system, and the control system includes a central control panel and a plurality of door controller units. Specifically, the central control panel includes a first control module and a second control module, and the door controller unit includes a plurality of first door controller units for controlling the first side platform door and a plurality of second door controller units for controlling the second side platform door; the first control module connects the plurality of first door controller units and the plurality of second door controller units through a first bus, and the second control module connects the plurality of first door controller units and the plurality of second door controller units through a second bus; the first control module and the second control module are redundant with each other, and the first control module controls the plurality of first door controller units and the plurality of second door controller units through the first bus, and at the same time, the second control module controls the plurality of first door controller units and the plurality of second door controller units through the second bus. The system for realizing the rail transit platform door network control method 300 can be the system described above with reference to Figure 2 The rail transit platform door network control system described herein, for its specific details, can be referred to above.

[0054] Specifically, the central control panel receives messages sent by the signal system through the network, including messages for door opening, door closing, or alignment isolation, etc. The messages sent by the signal system are simultaneously sent to the first control module and the second control module of the central control panel.

[0055] Afterwards, the first and second control modules within the central control panel receive the message sent by the signal system and each verifies the message. If the verification fails, the message is discarded and not sent to the gate controller unit, maintaining the current state. If the verification passes, the verified message is sent to each gate controller unit. Specifically, the first control module sends the verified message to the gate controller unit via the first bus, and the second control module sends the verified message to the gate controller unit via the second bus. The gate controller unit can be the first gate controller unit, the second gate controller unit, or both, depending on the type of message.

[0056] After receiving the message, the door controller unit verifies the message sent by the first control module and / or the second control module, and discards any message that fails verification. If the message sent by one control module passes verification, or if the messages sent by both control modules pass verification, the door controller unit determines whether the verified message is a new message based on a preset determination. If the message is a new message, the door controller executes the command of the new message; if the message is an old message, the door controller discards the message.

[0057] For example, when the gate controller unit determines whether a verified message is new, the logic is as follows: if the gate controller unit determines that the sequence numbers of the messages sent by the first and second control modules are the same, the first arriving message is determined to be the new message, and the second arriving message is determined to be the old message. Because the messages sent by the first and second control modules correspond to the same message sent by the signaling system, the gate controller unit selects one of them based on the first-come, first-served principle and executes an action, thus avoiding control logic confusion.

[0058] The rail transit platform door network control method 300 of the embodiment of the present invention can realize parallel control of the door controller units by two sets of control modules. When one set of control modules fails, the other set of control modules can still control the door controller units on both sides without affecting the normal operation of the rail transit platform doors.

[0059] Although example embodiments have been described herein with reference to the accompanying drawings, it should be understood that the above example embodiments are merely illustrative and are not intended to limit the scope of the present application. Various changes and modifications may be made therein by those skilled in the art without departing from the scope and spirit of the present application. All such changes and modifications are intended to be included within the scope of the present application as required by the appended claims.

[0060] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0061] In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units described is merely a logical function division. In actual implementation, other division methods may be used, such as combining or integrating multiple units or components into another device, or ignoring or not performing some features.

[0062] In the description provided herein, a large number of specific details are described. However, it is understood that the embodiments of the present application can be practiced without these specific details. In some instances, well-known methods, structures, and techniques are not shown in detail so as not to obscure the understanding of this description.

[0063] Similarly, it should be understood that in order to streamline the present application and aid in understanding one or more of the various inventive aspects, in the description of the exemplary embodiments of the present application, the various features of the present application are sometimes grouped together into a single embodiment, figure, or description thereof. However, this approach of the present application should not be interpreted as reflecting the intention that the application claimed for protection requires more features than those explicitly recited in each claim. More precisely, as reflected in the corresponding claims, the inventive point is that the corresponding technical problem can be solved with fewer features than all the features of a single disclosed embodiment. Therefore, the claims following the detailed description are hereby expressly incorporated into the detailed description, with each claim itself serving as a separate embodiment of the present application.

[0064] It will be understood by those skilled in the art that, except where mutually exclusive, all features disclosed in this specification (including the accompanying claims, abstract, and drawings) and all processes or units of any method or apparatus disclosed herein may be combined in any combination. Unless expressly stated otherwise, each feature disclosed in this specification (including the accompanying claims, abstract, and drawings) may be replaced by an alternative feature providing the same, equivalent, or similar purpose.

[0065] Furthermore, those skilled in the art will appreciate that although some embodiments described herein include certain features included in other embodiments but not other features, combinations of features from different embodiments are intended to be within the scope of this application and to form different embodiments. For example, in the claims, any of the claimed embodiments may be used in any combination.

[0066] The various component embodiments of the present application can be implemented in hardware, or in a software module running on one or more processors, or in a combination thereof. Those skilled in the art will appreciate that a microprocessor or digital signal processor (DSP) can be used in practice to implement some or all of the functions of some modules according to the embodiments of the present application. The application can also be implemented as a part or all of a device program (e.g., a computer program and a computer program product) for performing the method described herein. Such a program implementing the present application can be stored on a computer-readable medium, or can have the form of one or more signals. Such a signal can be downloaded from an Internet website, or provided on a carrier signal, or provided in any other form.

[0067] It should be noted that the above embodiments illustrate rather than limit the present application, and that those skilled in the art may devise alternative embodiments without departing from the scope of the appended claims. In the claims, any reference symbols placed between brackets should not be construed as limiting the claims. The present application may be implemented by means of hardware comprising several different elements and by means of a suitably programmed computer. In a unit claim enumerating several means, several of these means may be embodied by the same item of hardware. The use of the words first, second, and third, etc. does not indicate any order. These words may be interpreted as names.

[0068] The above description is merely a specific embodiment or illustration of a specific embodiment of the present application, and the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. The scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A rail transit platform door network control system, characterized in that: It consists of a central control panel and multiple door controller units, including: The central control panel includes a first control module and a second control module, and the door controller unit includes a plurality of first door controller units for controlling the first side platform door and a plurality of second door controller units for controlling the second side platform door; The first control module is directly connected to the plurality of first gate controller units and the plurality of second gate controller units via a first bus, so as to send control instructions to the plurality of first gate controller units and / or the plurality of second gate controller units via the first bus; the second control module is directly connected to the plurality of first gate controller units and the plurality of second gate controller units via a second bus, so as to send control instructions to the plurality of first gate controller units and / or the plurality of second gate controller units via the second bus; The first control module and the second control module are redundant with each other. The first control module controls the multiple first gate controller units and the multiple second gate controller units through the first bus. At the same time, the second control module controls the multiple first gate controller units and the multiple second gate controller units through the second bus.

2. The rail transit platform door network control system according to claim 1, characterized in that: It also includes a local control panel, which is directly connected to the multiple door controller units to control the multiple door controller units.

3. The rail transit platform door network control system according to claim 2, characterized in that: The local control panel is directly connected to the plurality of door controller units via hard lines.

4. The rail transit platform door network control system according to claim 3, characterized in that: The local control panel includes a first local control panel and a second local control panel. The first local control panel is connected to the plurality of the first door controller units via a first hard line, and the second local control panel is connected to the plurality of the second door controller units via a second hard line.

5. The rail transit platform door network control system according to claim 2, characterized in that: The local control panel is further connected to the first bus and / or the second bus to obtain status data of the first door controller unit and the second door controller unit through the first bus and / or the second bus.

6. The rail transit platform door network control system according to claim 1, characterized in that: The first control module includes a first programmable controller and at least one first switch, and the second control module includes a second programmable controller and at least one second switch. The first programmable controller is connected to the first bus, and the second programmable controller is connected to the second bus; the first switch and the second switch are used to connect to the signal system and the integrated monitoring system.

7. The rail transit platform door network control system according to claim 6, characterized in that: The central control panel further includes a monitoring host, and the first switch and the second switch are respectively connected to the monitoring host.

8. The rail transit platform door network control system according to claim 6, characterized in that: The first control module and the second control module also include a network card, which is used to enable the first programmable controller and the second programmable controller to communicate with the integrated monitoring system via Ethernet to send platform door status data to the integrated monitoring system; the first programmable controller and the second programmable controller receive commands sent by the signal system through their own network ports and send platform door status data to the signal system.

9. A rail transit platform door network control method, characterized in that: The method is used in a rail transit platform door network control system according to any one of claims 1 to 8, and the method comprises: The central control panel receives messages sent by the signal system through the network; After receiving the message sent by the signal system, the first control module and the second control module inside the central control panel respectively verify the accuracy of the message. If the verification fails, the message is discarded. If the verification passes, the first control module and the second control module respectively send the message to the door controller unit; After receiving the message, the door controller unit verifies the messages sent by the first control module and the second control module respectively, and discards the messages that fail the verification; If the verification passes, the gate controller unit determines whether the verified message is a new message, and if it is determined that the message is a new message, executes the command of the new message; if it is determined that the message is an old message, discards the message.

10. The rail transit platform door network control method according to claim 9, characterized in that: The determining whether the message that passes verification is a new message includes: When the door controller unit determines that the sequence numbers of the messages sent by the first control module and the second control module are the same, the message that arrives first is determined as the new message, and the message that arrives later is determined as the old message.

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