TSN-based fusion redundant network system for platform screen doors

Abstract

The present invention relates to the technical field of platform screen door control, and specifically relates to a TSN-based fusion redundant network system for platform screen doors. The TSN-based fusion redundant network system comprises an upbound platform screen door system and a downbound platform screen door system. Data plane A and data plane B are provided within each single system, and the two data planes form a dual-redundant structure. DCUs and smart I / O terminals are chain-connected within each single system. The DCUs each directly access a TSN ring network and provide interfaces for other subsystem devices to access the TSN ring network. The smart I / O terminals provide I / O interfaces and other communication interfaces to other subsystem devices. The systems are centrally controlled via domain controllers. The other subsystem devices access the ring network via the DCUs and the smart I / O terminals, and participate in signal execution of the platform screen door systems. The present invention improves network reliability by configuring A / B fused dual-redundant data planes. In addition, all subsystem devices are uniformly controlled by the domain controllers, thereby significantly reducing the number of cables and improving the convenience of later maintenance.

Description

A station door fusion redundancy network system based on TSN TECHNICAL FIELD

[0001] The present application relates to the technical field of station door control, and specifically relates to a station door fusion redundancy network system based on TSN. BACKGROUND

[0002] The existing station door system adopts multiple hard lines for control connection due to the requirements of high safety and high reliability, and also adopts CAN bus and Ethernet for control and maintenance connection. The introduction of Ethernet switches synchronously increases the cost and network wiring complexity, so the existing station door system has complex network system, many cables and high maintenance cost. SUMMARY

[0003] The technical problem to be solved by the present application is that the existing station door system has complex network system, including hard lines, bus and Ethernet, complex wiring and high maintenance cost.

[0004] To solve the technical problem, the technical scheme adopted by the present application is as follows:

[0005] In a first aspect, a station door fusion redundancy network system based on TSN is provided, comprising

[0006] An uplink station door system and a downlink station door system; an A data plane and a B data plane are arranged in a single system, and the two data planes form a double redundancy structure; a DCU and an intelligent IO terminal are connected in a single system through a chain;

[0007] Optionally, the DCU accesses a TSN ring network and provides an interface for other subsystem devices to access the TSN ring network; the intelligent IO terminal provides an IO interface and other communication interfaces for other subsystem devices;

[0008] A domain controller is arranged: the uplink station door system and the downlink station door system are centrally controlled through the domain controller, and the DCU, the intelligent IO terminal and other subsystem devices form a ring network;

[0009] Optionally, the other subsystem devices access the ring network through the DCU and the intelligent IO terminal, and participate in the signal execution of the station door system;

[0010] The single system is provided with a relay circuit, and the relay circuit realizes the continuous connection of the network system when the DCU or the intelligent IO terminal is disconnected.

[0011] Optionally, the DCU is provided with an Ethernet port, and the other subsystem devices access the communication module in the DCU through the Ethernet port and are connected with the station door drive collection module.

[0012] Optionally, a relay circuit is arranged in the single system, and the relay is used to realize the continuous connection of the network when a single device of the network fails.

[0013] The relay circuit is used to attract when the DCU or the intelligent IO terminal is disconnected, thereby conducting the adjacent DCU or the intelligent IO terminal.

[0014] Optionally, the intelligent IO terminal is provided with an IO interface and other communication interfaces, and other subsystem devices access the communication module in the intelligent IO terminal through the IO interface or the other communication interfaces and are connected with an IO drive collection module, and the IO drive collection module is connected with the PSL, the IBP and other subsystem devices through a hard wire.

[0015] Optionally, the PSL, the IBP and other subsystem devices convert the hard wire signal or other bus and network signals into TSN signals through the intelligent IO terminal and access the TSN ring network.

[0016] The domain controller is provided with two, and the uplink platform door system and the downlink platform door system are provided with an A ring network plane and a B ring network plane and are connected with a communication module in the domain controller, and the communication module is connected with a platform door control module and a subsystem control module.

[0017] Optionally, the other subsystem devices include a gap detection terminal device, a PIS device and other platform door devices, and the gap detection terminal device, the PIS device and the other platform door devices access the DCU through an Ethernet port or a bus port.

[0018] In the second aspect, a TSN-based rail transit vehicle door fusion redundancy network system is provided, and the TSN-based platform door fusion redundancy network system in the first aspect is applied to a rail transit vehicle door control system.

[0019] Compared with the prior art, the present application has the following beneficial effects:

[0020] The present application replaces the complex hard wire, bus and Ethernet network of the existing platform door system by arranging the fusion TSN network, ensures the safety of the hard wire transmission through the deterministic TSN network, fuses the maintenance network with high bandwidth demand, simplifies the system network system, guarantees the system safety, simplifies the hard wire and the bus, reduces the cost and improves the maintainability, improves the network reliability by arranging the A / B dual-redundancy data plane, saves the system cost without the TSN switch by arranging two domain controllers and all DCUs and intelligent IO terminals to form a ring network through the TSN, facilitates the access of other subsystem devices to the TSN fusion network by arranging the hard wire interface and the other bus interface in all DCUs and intelligent IO terminals, and prevents the influence of the network communication caused by the power failure of any device in the ring network by arranging the relay circuit in all DCUs and intelligent IO terminals. BRIEF DESCRIPTION OF DRAWINGS

[0021] Fig. 1 is a schematic diagram of the overall system network system connection of the present application;

[0022] Fig. 2 is a schematic diagram of the structure of the intelligent IO terminal of the present application;

[0023] Fig. 3 is a schematic diagram of the structure of the DCU of the present application;

[0024] Fig. 4 is a schematic diagram of the structure of the domain controller of the present application. DETAILED DESCRIPTION

[0025] The technical solutions of the present application will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0026] Embodiment one:

[0027] As shown in Fig. 1, a platform door fusion redundant network system based on TSN is provided, comprising:

[0028] The system network system includes two sides of uplink and downlink, wherein two sides share two domain controllers, and a maximum of 40 door control units, i.e. DCU, are set, usually 1 to 24 door control units. Each door control unit is composed of a ring network through TSN technology, and A data plane and B data plane are provided in each side of the system to form a double-redundant ring network.

[0029] Each DCU realizes continuous conduction of the network through a relay circuit in the case of power failure; specifically, when a certain door control unit is powered off, the relay is attracted and directly conducts to the next door control unit, thereby preventing interruption of the entire network.

[0030] As shown in Fig. 1, the intelligent IO terminal is provided with an IO interface, and other subsystem devices access the communication module in the intelligent IO terminal through the IO interface and are connected with the IO drive collection module, the IO drive collection module is connected with PSL and IBP through hardwire, and the PSL and IBP convert the hardwire signal into a network signal through the intelligent IO terminal and access the TSN ring network.

[0031] The intelligent IO terminal is internally provided with a communication module and an IO drive collection module, and PSL and IBP and part of the subsystems can directly access the IO drive collection module in the intelligent IO terminal through hardwire, and the TSN ring network plane A and the TSN ring network plane B and the subsystems capable of communicating are connected with the communication module.

[0032] In the single system, the domain controller and the intelligent IO terminal are connected by a chain, the DCU directly accesses the TSN ring network, the DCU provides an interface for other subsystem devices to access the TSN ring network, and the DCU is provided with at least two additional Ethernet ports for accessing the gap detection terminal device and the PIS device.

[0033] As shown in FIG. 2, the intelligent IO terminal provides an IO interface for other subsystem devices. Since the existing mode of the platform door system is that the PSL and the IBP convert the hard-wired signal into a network signal through the intelligent IO terminal and directly access the ring network, in the case of a large number of subsystem devices, since the DCU itself is provided with a small number of IO interfaces, if each platform door needs to set up a subsystem device, the DCU can be directly used for access, and if there are only a small number of devices, the intelligent IO terminal can be used for access.

[0034] However, as the PSL and the IBP, since the signal mode of the PSL and the IBP is hard-wired connection, and the DCU itself is provided with only a small number of IO interfaces, the PSL and the IBP need to be directly connected with the IO terminal.

[0035] Through the system, the uplink platform door system and the downlink platform door system are centrally controlled by the domain controller, and form a ring network with the DCU, the intelligent IO terminal and other subsystem devices. Other subsystem devices access the ring network through the DCU and the intelligent IO terminal, and participate in the signal execution of the platform door system. A relay circuit is provided in the single system, and the relay is used to realize continuous conduction in the system when the DCU is disconnected.

[0036] Embodiment two:

[0037] In each uplink and downlink system, the A data plane and the B data plane process different data paths respectively, thereby providing redundant support. Specifically, the A data plane and the B data plane are connected with the DCU and the intelligent IO terminal in the system respectively. The DCU is responsible for the main transmission of data, and the intelligent IO terminal provides an interface for the access of other subsystem devices.

[0038] As shown in FIG. 3, the TSN ring network plane A and the TSN ring network plane B access the communication module of the DCU, and the communication module is connected with the platform door drive collection module. The DCU is provided with an Ethernet port, and the gap detection terminal device can directly access the DCU, thereby reducing the hard-wired cable. The PIS device directly accesses the DCU, and the whole system is centrally controlled by a ring network system.

[0039] As shown in FIG. 4, the domain controller is internally provided with a communication module, a platform door system control module and a subsystem control module. The communication module in the domain controller is used to access the AB ring network planes of the uplink TSN ring network and the downlink TSN ring network.

[0040] The PSL and IBP in the uplink platform door system and the downlink platform door system access the intelligent IO terminal, and part of the subsystems without communication connection can access the intelligent IO terminal, and multiple intelligent IO terminals access the TSN ring network; each DCU is directly connected with the gap detection terminal and the PIS device; the entire uplink platform door system and the downlink platform door system are controlled by two domain controllers, and the reliability is improved by relying on the dual-redundancy network.

[0041] Embodiment three:

[0042] In the TSN-based platform door fusion redundancy network system described in Embodiment one and Embodiment two, the fusion redundancy network system proposed in this embodiment is not only suitable for the platform door system, but also suitable for the door system of the rail transit vehicle.

[0043] Specifically, the rail transit door system has high requirements for control real-time performance, safety, communication reliability and the like in the running process, and has high similarity with the platform door system in the system architecture level: needs to support multiple DCUs, a redundancy communication mechanism, centralized control and subsystem device access; therefore, the TSN fusion redundancy network architecture provided in this embodiment can be directly applied to the door control system on the vehicle side.

[0044] In this application:

[0045] The DCU is arranged at each door position of the vehicle, and is used for performing door opening and closing control, state monitoring and the like, and is centrally managed through the TSN network;

[0046] The intelligent IO terminal can be arranged in the vehicle body, and is used for connecting the subsystem devices in the vehicle, such as a door state sensor, a PIS, a voice prompting system, an opening and closing indicator light and the like;

[0047] The domain controller is arranged in the vehicle control cabin or the master control node, and is used for uniformly controlling all the vehicle doors;

[0048] A dual data plane (A / B) is also arranged to form a TSN redundancy network structure, so as to improve the communication reliability;

[0049] Each DCU and IO terminal is configured with a relay circuit, which automatically realizes bypass conduction when the node is powered off, so as to ensure that the entire vehicle network is not interrupted.

[0050] Obviously, the above embodiments are merely examples for clearly illustrating, and do not limit the implementation modes. For ordinary skilled persons in the art, other different forms of changes or variations can be made on the basis of the above description. Here, all the implementation modes do not need to be exhausted, and the obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A TSN-based platform door fusion redundancy network system, characterized in that, The application relates to a TSN-based platform door fusion redundancy network system. The uplink platform door system and the downlink platform door system are provided with an A data plane and a B data plane in a single system, and the two data planes form a double-redundancy structure. The DCU and the intelligent IO terminal are connected in a chain in the single system. The DCU accesses a TSN ring network and provides an interface for other subsystem devices to access the TSN ring network; the intelligent IO terminal provides an IO interface and other communication interfaces for other subsystem devices. The domain controller: the uplink platform door system and the downlink platform door system are centrally controlled through the domain controller, and the domain controller, the DCU, the intelligent IO terminal and other subsystem devices form a ring network. Other subsystem devices access the ring network through the DCU and the intelligent IO terminal and participate in signal execution of the platform door system. The single system is provided with a relay circuit, and the relay circuit realizes continuous connection of the network when the DCU or the intelligent IO terminal is disconnected. The DCU is provided with an Ethernet port, and other subsystem devices access a communication module in the DCU through the Ethernet port and are connected with a platform door driving and collecting module.

2. The TSN-based platform door fusion redundancy network system of claim 1, wherein, The relay circuit is used for attracting and conducting adjacent DCU or intelligent IO terminal when the DCU or the intelligent IO terminal is disconnected.

3. The TSN-based platform door fusion redundancy network system of claim 1, wherein, The intelligent IO terminal is provided with an IO interface and other communication interfaces, and other subsystem devices access a communication module in the intelligent IO terminal through the IO interface or the other communication interfaces and are connected with an IO driving and collecting module.

4. The TSN-based platform door fusion redundancy network system of claim 1, wherein, The PSL, the IBP and other subsystem devices convert hard-wire signals or other bus and network signals into TSN signals through the intelligent IO terminal and access the TSN ring network.

5. The TSN-based platform door fusion redundancy network system of claim 4, wherein, The domain controller is provided with two domain controllers, and the uplink platform door system and the downlink platform door system are provided with an A ring network plane and a B ring network plane and are connected with a communication module in the domain controller.

6. The TSN-based platform door fusion redundancy network system of claim 1, wherein, The other subsystem devices include a gap detection terminal device, a PIS device and other platform door devices, and the gap detection terminal device, the PIS device and other platform door devices access the DCU through an Ethernet port or a bus port.

7. The TSN-based platform door fusion redundancy network system of claim 1, wherein, 8. Application of the TSN-based platform door fusion redundancy network system in a rail transit door control system. ​

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