A TSN-based platform door fusion redundant network system

Abstract

The present invention relates to the technical field of platform door control, and specifically to a TSN-based platform door fusion redundant network system, comprising an uplink platform door system and a downlink platform door system; an A data plane and a B data plane are provided in a single system, and the two data planes form a dual redundant structure; a DCU and an intelligent IO terminal are chain-connected in a single system; each DCU is directly connected to the 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 to other subsystem devices; the systems are centrally controlled through a domain controller; other subsystem devices are connected to the ring network through the DCU and the intelligent IO terminal, and participate in the signal execution of the platform door system; the present invention improves network reliability by providing an A / B dual redundant fusion data plane, and all subsystem devices are uniformly controlled by the domain controller, which greatly reduces the number of cables and improves the convenience of later maintenance.

Description

Technical Field

[0001] The present invention relates to the technical field of platform door control, and in particular to a TSN-based platform door fusion redundant network system. Background Art

[0002] Due to the requirements of high security and high reliability, the existing platform door system uses multiple hard wires for control connections inside the system, and also uses CAN bus and Ethernet for control and maintenance connections. The introduction of Ethernet switches simultaneously increases the cost and complexity of network wiring. Therefore, the existing platform door system has a complex network format, a large number of cables, and high maintenance costs. Summary of the invention

[0003] The technical problem to be solved by the present invention is that the existing platform door system network system is complicated, including hard wires, buses and Ethernet, the wiring is complex and the maintenance cost is high.

[0004] In order to solve the technical problem, the technical solution adopted by the present invention is: to provide a TSN-based platform door fusion redundant network system, including

[0005] Up platform door system and down platform door system; A data plane and B data plane are set in a single system, and the two data planes form a dual redundant structure; DCU and intelligent IO terminal are connected in a chain in a single system;

[0006] Optionally, the DCU accesses the TSN ring network and provides interfaces for other subsystem devices to access the TSN ring network; the intelligent IO terminal provides IO interfaces and other communication interfaces to other subsystem devices;

[0007] A domain controller is provided: the upstream platform door system and the downstream platform door system are centrally controlled by the domain controller, and form a ring network with the DCU, intelligent IO terminal and other subsystem equipment;

[0008] Optionally, other subsystem devices are connected to the ring network through DCU and intelligent IO terminals, and participate in the signal execution of the platform door system;

[0009] Among them, a relay circuit is set in a single system, and the relay is used to realize the continuous connectivity of the network system when the DCU or intelligent IO terminal is disconnected; and the relay is used to realize the continuous connectivity of the network when a single network device fails.

[0010] Optionally, the DCU is provided with an Ethernet port, and other subsystem devices are connected to the communication module in the DCU through the Ethernet port and are connected to the platform door drive acquisition module.

[0011] The relay circuit is used to be attracted when the DCU or intelligent IO terminal is disconnected, thereby connecting the adjacent DCU or intelligent IO terminal.

[0012] Optionally, the intelligent IO terminal is provided with an IO interface and other communication interfaces, and other subsystem devices are connected to the communication module in the intelligent IO terminal through the IO interface or other communication interfaces, and are connected to the IO drive acquisition module, and the IO drive acquisition module is connected to the PSL, IBP and other subsystem devices through hard lines.

[0013] Optionally, the PSL, IBP and other subsystem devices convert hard-wired signals or other bus and network signals into TSN signals through intelligent IO terminals and access the TSN ring network.

[0014] There are two domain controllers, and both the up platform door system and the down platform door system are provided with an A ring network plane and a B ring network plane, and are connected to the communication module in the domain controller, and the communication module is connected to the platform door control module and the subsystem control module.

[0015] Optionally, the other subsystem devices include gap detection terminal devices, PIS devices and other platform door devices, and the gap detection terminal devices, PIS devices and other platform door devices are connected to the DCU via an Ethernet port or a bus port.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention replaces the complex hard wires, buses and Ethernet networks of the existing platform door system by setting up a fused TSN network. The deterministic TSN network ensures the security of hard wire transmission and integrates the maintenance network with high bandwidth requirements, thereby simplifying the system network system, ensuring system security while simplifying the hard wires and buses, reducing costs and improving maintainability. At the same time, an A / B dual redundant data plane is set up to improve network reliability. At the same time, the two domain controllers and all DCUs and intelligent IO terminals form a ring network through TSN, without the need for TSN switches, saving system costs. At the same time, all DCUs and intelligent IO terminals are equipped with hard wire interfaces and other bus interfaces to facilitate the access of other subsystem devices to the TSN fused network. At the same time, all DCUs and intelligent IO terminals are equipped with relay circuits to prevent power failure of any device in the ring network from affecting network communication. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall system network connection of the present invention;

[0019] Figure 2 It is a schematic diagram of the structure of the intelligent IO terminal of the present invention;

[0020] Figure 3 It is a schematic diagram of the DCU structure of the present invention;

[0021] Figure 4This is a schematic diagram of the domain controller structure of the present invention. DETAILED DESCRIPTION

[0022] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only 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 are within the scope of protection of the present invention. Embodiment 1

[0023] like Figure 1 As shown, a TSN-based platform door fusion redundant network system is provided, including:

[0024] The system network system includes both upstream and downstream sides, where two domain controllers are shared by both sides, with a maximum of 40 door control units, namely DCUs, usually 1 to 24. Each door control unit forms a ring network through TSN technology, and the system on each side is equipped with A data plane and B data plane to form a dual redundant ring network.

[0025] In the event of a power outage, each DCU will achieve continuous conduction of the network through a relay circuit; specifically, when a door control unit loses power, the relay will energize and directly conduct to the next door control unit, thereby preventing interruption of the entire network.

[0026] like Figure 1 As shown, the intelligent IO terminal is provided with an IO interface, and other subsystem devices are connected to the communication module in the intelligent IO terminal through the IO interface, and are connected to the IO drive acquisition module. The IO drive acquisition module is connected to the PSL and IBP through hard wires; the PSL and IBP convert the hard wire signals into network signals through the intelligent IO terminal and access the TSN ring network.

[0027] The intelligent IO terminal is internally provided with a communication module and an IO drive acquisition module. PSL, IBP and some subsystems can be directly connected to the IO drive acquisition module in the intelligent IO terminal through hard wires. The TSN ring network plane A and TSN ring network plane B and the subsystems capable of communication connection are connected to the communication module.

[0028] Among them, a domain controller and an intelligent IO terminal are chain-connected in a single system. The DCU is directly connected to the TSN ring network. In addition to providing an interface for other subsystem devices to access the TSN ring network, the DCU is provided with at least two additional Ethernet ports for accessing gap detection terminal devices and PIS devices.

[0029] like Figure 2As shown, the intelligent IO terminal provides IO interface to other subsystem devices. Since the existing method of the platform door system is that PSL and IBP convert hard-wired signals into network signals through intelligent IO terminals and directly connect to the ring network, in the case of a large number of subsystem devices, since the DCU itself will be equipped with a small number of IO interfaces, such as each separate platform door needs to set up subsystem equipment, you can choose to directly use the DCU for access. If there are only a small number of devices, you can choose to access through the intelligent IO terminal.

[0030] However, as for PSL and IBP, since the signal modes of PSL and IBP are both hard-wired connections, and the DCU itself is only equipped with a small number of IO interfaces, PSL and IBP need to be directly connected to the IO terminal.

[0031] Through this system, the uplink platform door system and the downlink platform door system are centrally controlled through the domain controller, and form a ring network with the DCU, intelligent IO terminal and other subsystem equipment. Other subsystem equipment is connected to the ring network through the DCU and intelligent IO terminal to participate in the signal execution of the platform door system. A relay circuit is set in a single system to achieve continuous conduction in the system when the DCU is disconnected. Embodiment 2:

[0032] In each uplink and downlink system, the A data plane and the B data plane handle different data paths respectively, thus providing redundancy support; specifically, the A data plane and the B data plane are connected to the DCU and the intelligent IO terminal in the system respectively. The DCU is responsible for the main transmission of data, while the intelligent IO terminal provides an interface to support the access of other subsystem devices.

[0033] like Figure 3 As shown, TSN ring network plane A and TSN ring network plane B are connected to the communication module of DCU, and the communication module is connected to the platform door drive acquisition module. DCU is provided with an Ethernet port, so that the gap detection terminal device can be directly connected to DCU, thereby reducing hard-wired cables. PIS equipment is also directly connected to DCU, and a ring network system is used for centralized control as a whole.

[0034] like Figure 4 As shown, the domain controller is internally provided with a communication module, a platform door system control module and a subsystem control module. The communication module inside the domain controller is used to access the AB ring network plane of the upstream TSN ring network and the downstream TSN ring network.

[0035] The PSL and IBP in the up platform door system and the down platform door system are connected to the intelligent IO terminal. At the same time, some subsystems that do not require communication connection can be connected to the intelligent IO terminal. Multiple intelligent IO terminals are connected to the TSN ring network; each DCU is directly connected to the gap detection terminal and the PIS device; the entire up platform door system and the down platform door system are controlled by two domain controllers, relying on dual redundant networks to improve reliability.

[0036] Obviously, the above embodiments are merely examples for clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the protection scope of the invention.

Claims

1. A TSN-based platform door fusion redundant network system, characterized in that: include: Up platform door system and down platform door system; A data plane and a data plane B are set up in a single system, and the two data planes form a dual redundant structure; A single system is chain-connected with DCU and intelligent IO terminals; Among them, the DCU accesses the TSN ring network and provides interfaces for other subsystem devices to access the TSN ring network; the intelligent IO terminal provides IO interfaces and other communication interfaces to other subsystem devices; Domain controller: The upstream platform door system and the downstream platform door system are centrally controlled by the domain controller, and form a ring network with DCU, intelligent IO terminal and other subsystem equipment; Other subsystem devices are connected to the ring network through DCU and intelligent IO terminals, and participate in the signal execution of the platform door system; Among them, a relay circuit is set in a single system, and the continuous connectivity of the network is achieved through the relay when the DCU or intelligent IO terminal is disconnected; and the continuous connectivity of the network is achieved through the relay when a single device in the network fails.

2. According to the TSN-based platform door fusion redundant network system of claim 1, it is characterized in that: The DCU is provided with an Ethernet port, and other subsystem devices are connected to the communication module in the DCU through the Ethernet port and are connected to the platform door drive acquisition module.

3. According to the TSN-based platform door fusion redundant network system of claim 1, it is characterized in that: The relay circuit is used to be attracted when the DCU or intelligent IO terminal is disconnected, thereby connecting the adjacent DCU or intelligent IO terminal.

4. According to the TSN-based platform door fusion redundant network system of claim 1, it is characterized in that: The intelligent IO terminal is provided with an IO interface and other communication interfaces. Other subsystem devices are connected to the communication module in the intelligent IO terminal through the IO interface or other communication interfaces, and are connected to the IO drive acquisition module. The IO drive acquisition module is connected to PSL, IBP and other subsystem devices through hard lines.

5. A TSN-based platform door fusion redundant network system according to claim 4, characterized in that: The PSL, IBP and other subsystem devices convert hard-wire signals or other bus and network signals into TSN signals through intelligent IO terminals and access the TSN ring network.

6. The TSN-based platform door fusion redundant network system according to claim 1, characterized in that: There are two domain controllers, and both the up platform door system and the down platform door system are provided with an A ring network plane and a B ring network plane, and are connected to the communication module in the domain controller, and the communication module is connected to the platform door control module and the subsystem control module.

7. The TSN-based platform-door fusion redundant network system according to claim 1, characterized in that: The other subsystem devices include gap detection terminal devices, PIS devices and other platform door devices. The gap detection terminal devices, PIS devices and other platform devices are connected to the DCU via an Ethernet port or a bus port.

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