Door system control platform and control method for track transit platform door fusion gap detection function

Abstract

The application discloses a door system control platform and a control method for rail transit platform door gap fusion detection function in the technical field of rail transit platform doors, and belongs to the technical field of rail transit platform doors. The platform comprises a domain controller, a door controller and an intelligent scanning unit. The domain controller is used for integrating a gap detection controller and interacting with the door controller through a network. The door controller is used for receiving signals of the domain controller and driving the intelligent scanning unit according to the signals, and simultaneously acquiring detection results of the intelligent scanning unit. The intelligent scanning unit outputs the detection results to the door controller according to the nearest principle. Furthermore, the platform can centrally manage door system control and gap detection system control, reduces equipment dispersion and wiring complexity, and realizes intelligent fusion control of the gap detection of the platform door system.

Description

TECHNICAL FIELD

[0001] The present application relates to a door system control platform and a control method for a fusion gap detection function of a rail transit platform door, and belongs to the technical field of rail transit platform door control. BACKGROUND

[0002] With the rapid development of rail transit, platform doors, as an important facility to ensure passenger safety, are widely used. In order to ensure that there is no obstacle or dangerous gap between the platform door and the train door when the train enters or exits the station, a gap detection system is usually required.

[0003] The existing gap detection system is generally composed of multiple intelligent scanning units, door controllers and laser control cabinets and other devices. The intelligent scanning unit usually uses a laser radar and a camera. The scanning result is fed back to a safety relay through a hard line. The video and images captured by the camera are transmitted to a communication unit and an end door display box through a network cable for processing and display. After all the platform doors are closed and locked, the platform door system controller collects the corresponding signals through a hard line, and then sends a start signal to the laser controller through a hard line. The laser controller controls the intelligent scanning unit to start working through a bus. After the result is fed back, the state is sent to the signal system in combination with the closing and locking information of the door controller.

[0004] However, the existing technology has the following problems: first, the central control panel, laser control cabinet, switch, communication master station and platform door system controller are scattered, resulting in a large number of wire harnesses, complex wiring and high maintenance cost; second, the gap detection system and the platform door control system are two independent systems, and the control is finally completed through the platform door control system. However, there are two sets of control units, i.e. the gap detection controller and the platform door controller, in the system. Distributed control not only has high hardware cost, but also is not conducive to the centralized intelligent expansion of the system. SUMMARY

[0005] The present application provides a door system control platform and a control method for a fusion gap detection function of a rail transit platform door, which solves the problem of the mutual independence of the existing platform door control system and the gap detection system, the scattering of equipment, the large number of wire harnesses, the complex wiring and the insufficient expansion and flexibility.

[0006] In a first aspect, a door system control platform for a fusion gap detection function of a rail transit platform door is provided, comprising:

[0007] a domain controller for integrating a door control system and a gap detection control system;

[0008] The domain controller interacts with the door controller through a network. The domain controller interacting with the door controller through a network includes:

[0009] The domain controller collects the platform door closing locking signal and the gap detection result through the deterministic network, and sends the gap detection start signal to the door controller through the deterministic network;

[0010] The domain controller judges the platform door state in combination with the platform door closing locking signal and the gap detection result, and sends the safety circuit signal to the signal system through the hard line when the judgment is valid;

[0011] A plurality of door controllers are configured to receive the signal of the domain controller and drive the intelligent scanning unit according to the signal of the domain controller; wherein the door controller is further configured to obtain the gap detection result of the intelligent scanning unit;

[0012] A plurality of intelligent scanning units are configured to detect the gap state between the train and the platform door and the obstacle information;

[0013] A plurality of door controllers are connected in series and form a ring network with the domain controller through the deterministic network; the domain controller is connected to the signal system through the hard line; and the door controller is connected to the intelligent scanning unit through the Ethernet and the hard line;

[0014] The intelligent scanning unit outputs the gap detection result to the door controller according to the nearest principle.

[0015] Further, the domain controller interacts with the door controller through the network to further include that the domain controller judges whether all platform doors are closed according to the number of access points of the door controller.

[0016] Further, the door controller controls the intelligent scanning unit through the Ethernet or the hard line.

[0017] The gap detection result of the intelligent scanning unit is fed back to the door controller through the hard line or the Ethernet.

[0018] Further, the intelligent scanning unit includes at least one of a laser radar, a camera or an infrared grating.

[0019] Further, the nearest principle includes that the intelligent scanning unit uploads the gap detection result to the door controller of the nearest access point.

[0020] Further, the domain controller is provided with a dual CPU, which is configured to synchronize the obtained signal data and perform 2-to-2 safety calculation.

[0021] In a second aspect, a fusion control integrated control method for track traffic platform door gap detection is provided, which is applied to the door system control platform for the fusion gap detection function of the track traffic platform door in the first aspect, and the method includes the following steps:

[0022] The domain controller collects a platform door closing locking signal and sends a gap detection starting signal to the door controller through a deterministic network;

[0023] The door controller controls the intelligent scanning unit through Ethernet or hard wire according to the gap detection starting signal;

[0024] The intelligent scanning unit feeds back the gap detection result to the door controller through hard wire or Ethernet according to the nearest principle;

[0025] The domain controller judges the platform door state in combination with the gap detection result and the platform door closing locking signal, and sends a safety circuit signal to the signal system through hard wire when the judgment is valid.

[0026] The application integrates the intelligent scanning unit by adopting the domain controller, so that various detection results can be centrally managed, the intelligence of the system is improved, and the high cost and wiring complexity brought by multiple sets of dispersed equipment are reduced; the domain controller interacts with the door controller through a network, and the door controller controls the intelligent scanning unit and obtains the detection result according to the signal of the domain controller; the intelligent scanning unit outputs the detection result to the door controller according to the nearest principle, so that the system can be flexibly configured in the device layout, the signal transmission distance is reduced, and the efficiency and reliability of the gap detection are improved. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 The structure schematic diagram of the existing gap detection scheme provided by the application is shown;

[0028] Figure 2 The structure schematic diagram of the door system control platform for the gap detection function of the rail transit platform door provided by the application is shown;

[0029] Figure 3 The control flow chart of the door system control platform for the gap detection function of the rail transit platform door provided by the application is shown;

[0030] Figure 4 The system block diagram of the door system control platform for the gap detection function of the rail transit platform door provided by the application is shown. DETAILED DESCRIPTION

[0031] The technical scheme of the application will be described in detail below with the help of the drawings and specific embodiments. It should be understood that the specific features in the embodiments and the specific features in the embodiments are detailed descriptions of the technical scheme of the application, rather than limitations of the technical scheme of the application. In the case of no conflict, the technical features in the embodiments and the embodiments can be combined with each other.

[0032] The term "and / or", used herein merely describes an associated relationship, which means that there can be three relationships, for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after it.

[0033] In one specific embodiment, as shown in Figure 2 A door system control platform for rail transit platform door fusion gap detection function is provided, including a domain controller, a door controller and a plurality of intelligent scanning units.

[0034] In terms of hardware configuration, the domain controller integrates the functions of central control panel, laser control cabinet, switch, communication master station and platform door system controller on the same hardware platform. The original PSC control unit and gap detection control unit are fused, which not only reduces the number of hardware, but also reduces the cost, and the fusion of the two improves the collaboration and intelligence of the whole system. In addition, the domain controller internally includes double CPU, communication module, security platform layer, basic software layer and a plurality of control modules. The domain controller interacts with the door controller through deterministic network (TSN) to realize reliable transmission of platform door state signal and gap detection data. The double CPU is used to synchronize the collected signal data and perform 2-to-2 safety calculation to ensure the redundancy and reliability of safety-related data processing.

[0035] Specifically, the door controller and the domain controller communicate through deterministic network, which is used to receive the gap detection start signal of the domain controller and control the work of a plurality of intelligent scanning units, and at the same time obtain the detection results of each intelligent scanning unit. The door controller can control the intelligent scanning unit through Ethernet, and can also control it through hard-wired mode, and can receive the detection results fed back by each intelligent scanning unit through hard-wired or Ethernet.

[0036] It should be noted that the intelligent scanning unit is used to detect the gap state between the train and the platform door and the obstacle information, which can adopt laser radar, camera, infrared grating or their combination in this embodiment. As shown in Figure 1 Each intelligent scanning unit uploads the gap detection result to the door controller of the nearest access point according to the "nearest principle", which not only reduces the length of wire harness, but also improves the flexibility and scalability of the system.

[0037] In addition, the domain controller is mainly used for fusing the control of the door system with the control of the gap detection, so that the control functions of the entire integrated platform are concentrated in the domain controller; and for the door controller, the door controller is an intelligent execution terminal of the platform door, and the control instruction of the platform door is issued by the domain controller; after the intelligent scanning unit accesses the door controller, the door controller is only responsible for the preliminary processing of data, specifically including processing the data of the laser radar into point cloud data that can be calculated, and the remaining control processing is completed by the domain controller.

[0038] In the specific operation process, as shown in Figure 3 When the train arrives at the station and all the platform doors are closed and locked, the domain controller acquires the platform door closing and locking signal through the deterministic network, and simultaneously sends a gap detection start signal to the door controller through the deterministic network, instructing the door controller to start the intelligent scanning unit; after receiving the gap detection start signal, the door controller starts the multiple intelligent scanning units through Ethernet or hardwire to scan and acquire the gap detection result between the train and the platform door; each intelligent scanning unit feeds back the gap detection result to the corresponding door controller through hardwire or Ethernet according to the nearest principle, and the door controller uploads the received detection result to the domain controller.

[0039] The domain controller combines the acquired platform door closing and locking signal and the gap detection result uploaded by the door controller to judge the state of the platform door; when there is no obstacle, it is judged as valid, and when the judgment result is valid, the domain controller sends a safety circuit signal to the signal system through hardwire; and the domain controller continuously acquires the state information of all the platform doors; when there is an obstacle, the domain controller sends an alarm information and ends the output of the safety circuit signal.

[0040] In another embodiment, the domain controller judges whether all the platform doors are closed according to the number of door controller access points; specifically, when there is a signal missing in a certain door controller, it is judged that the platform door is in an unclosed state; in addition, this connection mode can also dynamically adjust the correspondence between the intelligent scanning unit and the door controller according to the system configuration.

[0041] The embodiment also provides another specific embodiment, specifically including a fusion control integrated control method for track traffic platform door gap detection, the method comprising the following steps:

[0042] The domain controller acquires the platform door closing and locking signal and sends a gap detection start signal to the door controller through the deterministic network;

[0043] The door controller controls the intelligent scanning unit through Ethernet or hardwire according to the gap detection start signal;

[0044] The intelligent scanning unit feeds back the gap detection result to the gate controller through hardwire or Ethernet according to the principle of proximity.

[0045] The domain controller judges the status of the platform door according to the gap detection result and the platform door closing locking signal, and sends the safety circuit signal to the signal system through hardwire when the judgment is valid.

[0046] Specifically, as shown in Figure 4 The communication module of the domain controller receives the gap detection data transmitted by the gate controller through the TSN interface, uploads the gap detection data to the safety platform layer for safety calculation, and sends the calculated result to the application layer, wherein the safety part (the result of hardwire transmission) is processed by the platform door system control module and the gap detection control module, and the processed result is sent to the safety platform layer for safety calculation.

[0047] The dual CPU in the domain controller synchronizes data. Safety-related data is sent to the platform door system control module and the gap detection control module for processing, and after processing, the result is sent to the basic software layer for safety drive control after 2 calculation by dual CPU 2; non-safety-related data is sent to the platform door system monitoring module and the gap detection monitoring module for processing, and after processing, the result is directly sent to the basic software layer in Figure 4 for non-safety drive control.

[0048] These computer program instructions can also be loaded into a computer or other programmable data processing device to cause a series of operation steps to be performed on the computer or other programmable device to generate a computer-implemented process, so that the instructions executed on the computer or other programmable device provide a process for implementing the functions specified in the flow Figure 1 One flow or multiple flows and / or blocks Figure 1 One block or multiple blocks.

[0049] The above is only the preferred embodiment of the present application, and it should be noted that for those skilled in the art, without departing from the technical principles of the present application, a number of improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present application.

Claims

1. A door system control platform for track transit platform door fusion gap detection function, characterized in that, The application relates to a door system control platform for track traffic platform door fusion gap detection function. The domain controller interacts with the door controller through a network; the domain controller interacts with the door controller through a network includes: The domain controller collects a platform door closing locking signal and a gap detection result through a deterministic network, and sends a gap detection starting signal to the door controller through the deterministic network; The domain controller judges the platform door state in combination with the platform door closing locking signal and the gap detection result, and sends a safety loop signal to a signal system through a hard line when the judgment is valid. A plurality of door controllers are used for receiving signals of the domain controller and driving intelligent scanning units according to the signals of the domain controller; wherein the door controller is also used for acquiring a gap detection result of the intelligent scanning unit. A plurality of intelligent scanning units are used for detecting a gap state between a train and a platform door and obstacle information. The plurality of door controllers are sequentially connected in series and form a ring network with the domain controller through a deterministic network; the domain controller is connected to the signal system through a hard line; and the door controller is connected to the intelligent scanning unit through an Ethernet and a hard line. The intelligent scanning unit outputs the gap detection result to the door controller through a nearest principle. The domain controller judges whether all platform doors are closed according to the number of access points of the door controller.

2. The door system control platform for track transit platform door fusion gap detection function according to claim 1, characterized in that, The door controller controls the intelligent scanning unit through an Ethernet or a hard line.

3. The door system control platform for track transit platform door fusion gap detection function according to claim 1, characterized in that, The gap detection result of the intelligent scanning unit is fed back to the door controller through a hard line or an Ethernet. The intelligent scanning unit includes at least one of a laser radar, a camera or an infrared grating.

4. The door system control platform for track transit platform door fusion gap detection function according to claim 1, characterized in that, The nearest principle includes that the intelligent scanning unit uploads the gap detection result to the door controller of the nearest access point.

5. The door system control platform for track transit platform door fusion gap detection function according to claim 1, characterized in that, The domain controller is provided with double CPUs which are used for synchronizing acquired signal data and performing 2-to-2 safety calculation.

6. The door system control platform for track transit platform door fusion gap detection function according to claim 1, characterized in that, The application is applied to the door system control platform for track traffic platform door fusion gap detection function in any one of claims 1-6, and the method includes the following steps:

7. A control method of a door system control platform for a rail transit platform door fusion gap detection function, characterized in that, The domain controller collects a platform door closing locking signal and sends a gap detection starting signal to the door controller through a deterministic network; The door controller drives the intelligent scanning unit through an Ethernet or a hard line according to the gap detection starting signal; The intelligent scanning unit feeds back the gap detection result to the door controller through a hard line or an Ethernet according to a nearest principle; The domain controller judges the platform door state in combination with the gap detection result and the platform door closing locking signal, and sends a safety loop signal to a signal system through a hard line when the judgment is valid. ​

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