Control system and method for a platform screen door

Abstract

The application is a kind of control system of platform shielding door, relates to the field of traffic safety technology, including a plurality of shielding door devices arranged on the platform, further including a station building master control server, which establishes an information database according to vehicle type information, platform information and shielding door information; a station end workstation obtains a parking position offset from the set parking position according to the vehicle information and parking position obtained by the radar, and confirms the vehicle length information and door information by comparison with the information database; according to the parking position offset, the confirmed vehicle length information and door information, and the shielding door position confirmed on the platform, the position of each door closest to the shielding door and the offset are confirmed; according to the offset, the opening direction and movement amount of the shielding door are confirmed, and a control command is sent to the station end workstation; the station end workstation controls the opening mode of the shielding door device through each PLC controller, effectively ensuring the safety of passengers getting on and off the platform.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of traffic safety, and particularly relates to a control system of a platform screen door. BACKGROUND

[0002] Existing part of the station sets the screen door, its base adopts the fixed installation mode, for different car types, different parking positions, the screen door cannot be adjusted. When the train stops, the passenger gets on and off the train from the aisle when the train is not aligned with the door, due to the shielding of the screen door base, the crowded passengers need to detour from the aisle, which is easy to cause passenger congestion and affect the speed of passenger getting on and off the train. SUMMARY

[0003] In order to overcome the problem that the train door parking position affects the speed of passenger getting on and off the train mentioned in the prior art, the main purpose of the present application is to provide a control system of a platform screen door.

[0004] In order to achieve the above purpose, the present application adopts the following technical scheme, a control system of a platform screen door, comprising a screen door arranged on a platform, characterized in that further comprising:

[0005] A station house master control server is used to obtain vehicle type information, platform information and screen door information, and establish an information database;

[0006] A line scanning radar is used to obtain information of an incoming vehicle and a parking position, and send the vehicle information and the parking position;

[0007] A station end workstation is used to receive the vehicle information and the parking position, obtain a parking offset of the parking position and a set parking position, compare the vehicle information with the vehicle information in the information database of the station house master control server, obtain vehicle length information and door information, and send the confirmed vehicle length information, the door information and the parking offset to the screen door position information of the station house master control server for comparison, so as to obtain the distance and the offset of the nearest screen door of each door and send them to the station house master control server; the station house master control server receives the distance and the offset of the nearest screen door of each door for processing, and sends a control signal of a screen door opening direction and a moving amount;

[0008] A controller is used to receive the control signal of the screen door opening direction and the moving amount, and control the opening and closing of a plurality of screen doors.

[0009] The door information includes door position and door quantity.

[0010] The screen door comprises a door body, a door wing, and a linear module for driving the door wing to move left and right so as to extend or retract into the door body, and the opening mode of the screen door comprises: unilateral door wing retraction, bilateral door wing retraction, and door body movement with bilateral door wing retraction.

[0011] When one side of the door wing shields the vehicle door, the linear module drives the side door wing to retract to the door body;

[0012] When both sides of the door wing shield the vehicle door, the linear module drives the double-side door wing to retract to the door body;

[0013] When the door body shields the vehicle door, the door body is driven to move.

[0014] Each of the PLC controllers controls the action control and state monitoring of the servo motor for controlling the movement of the door body, the step motor for controlling the movement of the door wing, the battery control unit, and the positioning magnetic scale for positioning the door body in the shielding door device.

[0015] A control method of a platform shielding door, comprising the following steps:

[0016] The station general control server acquires vehicle type information, platform information, and shielding door information, and establishes an information database;

[0017] The station end workstation obtains a parking offset between the parking position and the set parking position according to the vehicle information and the parking position obtained by the radar, and compares the parking offset with the information database to confirm the vehicle length information and the vehicle door information; according to the parking offset, the confirmed vehicle length information and the vehicle door information, and the shielding door on the platform, the position of each vehicle door closest to the shielding door and the offset are confirmed;

[0018] The station general control server confirms the opening direction and the movement amount of the shielding door according to the offset, and sends a control command to the station end workstation, and the station end workstation controls the opening mode of the shielding door device through each of the PLC controllers.

[0019] The shielding door has a shielding rate of less than 50% to the vehicle door after being opened.

[0020] The station general control server checks the opening direction and the movement amount of the shielding door with the vehicle door information, and confirms that the shielding rate of the shielding door device to the vehicle door is less than 50% after being opened.

[0021] Compared with the prior art, the present application has the following beneficial effects:

[0022] 1. Reliable isolation of the platform side and the track is achieved.

[0023] 2. Full-automatic door opening is achieved for different types, different lengths, and different door opening positions of the motor train unit.

[0024] 3. For different needs of the passenger dedicated line station, such as passenger boarding and alighting, special trains, engineering vehicles, train diagram adjustment, parking position offset, and temporary change of train arrival and departure (vehicle type, time, and track), basically unshielded door opening can be achieved.

[0025] 4. The platform shielding door of the present application solves the problems of the existing passenger dedicated line station, such as the safety hidden trouble of the isolation equipment between the platform and the track, the poor anti-penetrating performance of the isolation equipment made of soft material, and the problem that the use of the fixed base of the isolation equipment blocks the boarding and alighting channel or can only adapt to a single vehicle type. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is the system control flowchart of the present application;

[0027] Figure 2 is the single door control flowchart of the present application;

[0028] Figure 3 is the first control schematic diagram of the single door of the present application;

[0029] Figure 4 is the second control schematic diagram of the single door of the present application;

[0030] Figure 5 is the third control schematic diagram of the single door of the present application. DETAILED DESCRIPTION

[0031] The present application will be further described below in combination with the drawings and embodiments.

[0032] Embodiment:

[0033] Referring to Figures 1-2 A control system of a platform shielding door, comprising a plurality of shielding door devices arranged on a platform, a station house master control server for obtaining vehicle type information, platform information and shielding door information, establishing an information database, a line scanning radar for obtaining information of an incoming vehicle and a parking position, and sending the vehicle information and the parking position, a station end workstation for receiving the vehicle information and the parking position, obtaining a parking offset of the parking position from a set parking position, comparing the vehicle information with the vehicle information in the information database of the station house master control server, obtaining vehicle length information and vehicle door information, and comparing the confirmed vehicle length information, the vehicle door information and the parking offset with shielding door position information of the station house master control server to obtain the distance and the offset of the nearest shielding door of each vehicle door and send them to the station house master control server, and the station house master control server receives the distance and the offset of the nearest shielding door of each vehicle door for processing, and sends a control signal of a shielding door opening direction and a moving amount, and a controller for receiving the control signal of the shielding door opening direction and the moving amount, and for controlling the opening and closing of a plurality of shielding doors. The radar is a line scanning radar, which can accurately identify the shape, moving speed and running state of the head of a motor train unit train, and realize the acquisition of the parking position error value of the motor train unit train and the judgment of the running state of the train.

[0034] The shielding door includes a door body, door wings, and a linear module driving the door wings to move left and right to extend or retract into the door body. The shielding door guide rail and the anti-toppling device are fixed on the platform surface. The guide rail provides a reliable movement path for the shielding door, enabling the shielding door to reliably operate on the established path. The anti-toppling device can provide a cable fixing access point for the shielding door and securely fix the shielding door on the guide rail, preventing the shielding door from toppling and causing a safety accident. In this embodiment, the maximum stroke of the retractable door wings is 2.5 meters. The door body can move left and right on the rail with a maximum stroke of 1.25 meters. The total width of the door body is 3.5 meters. Therefore, within the shielding area of the shielding door of 8.5 meters, the maximum shielding width is only 1 meter, greatly reducing the probability of the shielding door shielding the train door.

[0035] The opening mode of the shielding door device includes: unilateral door wing retraction, bilateral door wing retraction, and bilateral door wing retraction door body movement. When one side of the door wing shields the train door, the linear module drives the door wing to retract into the door body. When both sides of the door wing shield the train door, the linear module drives the bilateral door wing to retract into the door body. When the door body shields the train door, the door body is driven to move.

[0036] Each shielding door is designed with an independent PLC controller, which can automatically operate the door body through simple instructions from the main server, or manually control the door body action according to the background or local control button. That is, each PLC controller controls the action control and state monitoring of the servo motor controlling the door body movement, the stepper motor controlling the door wing movement, the battery control unit, and the positioning magnetic scale positioning the door body in the shielding door device. Among them, a magnetic scale is used to accurately position the moving distance of the safety door, realizing closed-loop control of the running distance of the safety door during opening and closing.

[0037] Embodiment 2

[0038] In this embodiment, according to the actual needs of the platform operation, the control system can be divided into four working modes: full-system automatic operation, full-system controlled operation, single-machine automatic operation, and emergency manual operation.

[0039] (1) Full-system automatic operation

[0040] In this mode, the system will pre-store all vehicle types that may pass through the platform. The vehicle type information will be saved on the server of the "station building master control service end" and the PC of the platform workstation. The master control service end obtains the latest train type information through the connected "travel service system". The working mode is as follows.

[0041] ① Shielding door opening:

[0042]

[0043] ② The platform screen door is closed:

[0044] The system detects the start of train movement via radar and sends a command to close the platform screen doors. All platform screen doors close and reset (the closing delay can be configured to 10-60 seconds).

[0045] (2) The entire system operates under control.

[0046] This operating mode can be operated from three locations: passenger service personnel's handheld device, station workstation, and station building central control computer. In this mode, after the operator enters the authorization authentication code on the device, they can select a specified platform and a single or multiple stand-alone platform screen doors to remotely open / close them.

[0047] (3) Standalone automatic operation

[0048] Passenger service staff will touch the NFC sensing area of ​​the platform screen door with their handheld device to connect the handheld device to the control unit of the current platform screen door via Bluetooth. After confirming a successful connection, the passenger service staff can open / close the current platform screen door through the app on the handheld device.

[0049] (4) Manual operation

[0050] Clutch handles are installed on the base cover plates at both ends of the platform screen door. After opening the cover plate, turning the handle will cut off the motor power, allowing personnel to push the platform screen door to move.

[0051] Example 3

[0052] See Figures 3-5 For a specific train door, the control steps for a single door are as follows:

[0053] 1) Prioritize the option of moving the platform screen doors so that they do not obstruct the train doors;

[0054] 2) If the train doors are inevitably blocked, and the platform screen door movement schemes of this train door and the adjacent train doors affect each other, the platform screen door movement scheme of the adjacent train doors shall be given priority if the platform screen door movement scheme of the adjacent train doors is unobstructed or has minimal obstruction.

[0055] 3) If the train door is inevitably blocked, and the movement schemes of the platform screen doors of this train door and the adjacent train doors do not affect each other, the scheme with the least obstruction shall be selected from the left and right platform screen door movement schemes of this train door, and the obstruction rate of the platform screen door device on the train door shall be controlled to be less than 50%.

[0056] Under all control conditions, the platform screen doors remain fully closed after the vehicle departs.

[0057] In this embodiment:

[0058] (1) Adapt to different train models and enable doors to open (when the distance between two train doors is less than 2 meters, they are considered as one door).

[0059] (2) When the distance between the train and the standard parking mark is no more than ±2 meters, the train will automatically adjust and open the door.

[0060] (3) Under normal circumstances, the equipment operates in fully automatic mode. Under special circumstances, it can be operated in three modes: fully controlled operation mode, single-machine automatic control mode and manual operation mode. Example 4

[0061] A method for controlling platform screen doors includes the following steps:

[0062] The station's central control server acquires vehicle type information, platform information, and platform screen door information to establish an information database.

[0063] The station-end workstation obtains information about the vehicles entering the station and their parking positions from the radar, calculates the parking offset between the parking position and the set parking position, and compares it with the information database to confirm the vehicle length and door information. Based on the parking offset, the confirmed vehicle length and door information, it is compared with the platform screen doors located on the platform to confirm the position and offset of each door relative to the nearest screen door.

[0064] The station's central control server determines the opening direction and movement of the platform screen door based on the offset, and issues control commands to the station-side workstations. The station-side workstations control the opening mode of the platform screen door device through each of the PLC controllers.

[0065] Among them, the obstruction rate of the platform screen door to the train door is less than 50% after the platform screen door is opened. The station's central control server obtains the opening direction and movement of the platform screen door, checks it against the train door information, and confirms that the obstruction rate of the platform screen door device to the train door is less than 50% after the platform screen door is opened.

[0066] It should be noted that, in this invention, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0067] The above embodiments are merely illustrative examples of the present invention and do not constitute a limitation on the scope of protection of the present invention. Any designs that are the same as or similar to the present invention are within the scope of protection of the present invention.

Claims

1. A control method for a platform screen door control system, the control system comprising: The system comprises a station control server, a line-scanning radar, a station-end workstation, a controller, and a platform screen door installed on the platform. The platform screen door includes a door body, door wings, and a linear module that drives the door wings to move left and right, thereby extending or retracting into the door body. The system is characterized by the following steps: The station's central control server acquires vehicle type information, platform information, and platform screen door information to establish an information database. The station-end workstation obtains information about the vehicles entering the station and their parking positions from the radar, calculates the parking offset between the parking position and the set parking position, and compares it with the information database to confirm the vehicle length and door information. Based on the parking offset, the confirmed vehicle length and door information, it is compared with the platform screen doors located on the platform to confirm the position and offset of each door relative to the nearest screen door. The station's central control server determines the opening direction and movement of the platform screen doors based on the offset and issues control commands to the station-side workstations. Each workstation controls the opening method of the platform screen door device through its controller. The opening methods include: single-sided door wing retraction, double-sided door wing retraction, and door movement with double-sided door wing retraction. When one side of the door wing obstructs the train door, the linear module drives that side's door wing to retract to the door body. When both sides of the door wing obstruct the train door, the linear module drives both sides' door wing to retract to the door body. When the door body obstructs the train door, the module drives the door body to move. The station's central control server is used to acquire vehicle type information, platform information, and platform screen door information, and to establish an information database. The line-scanning radar acquires information about vehicles entering the station and their parking positions, and transmits the vehicle information and parking positions; the vehicle information includes: the shape of the train's front end, its speed, and its driving status. The station-side workstation receives vehicle information and parking position, obtains the parking offset between the parking position and the set parking position, and compares the vehicle information with the vehicle information in the information database of the station building's central control server to obtain vehicle length information and door information. The station-side workstation then compares the confirmed vehicle length information, door information, and parking offset with the platform screen door position information of the station building's central control server to obtain the distance and offset of each door from the nearest platform screen door and sends this information to the station building's central control server. The door information includes the door position and the number of doors. The station building's central control server receives and processes the distance and offset of each door from the nearest platform screen door and sends control signals for the opening direction and movement amount of the platform screen doors. The controller receives control signals for the opening direction and movement amount of the platform screen doors, and is used to control the opening and closing of several platform screen doors.

2. The control method for the control system of platform screen doors according to claim 1, characterized in that, Each controller controls the motion control and status monitoring of the servo motor that controls the movement of the door body, the stepper motor that controls the movement of the door wings, the battery control unit, and the positioning magnetic ruler that positions the door body within the shielding door device.

3. The control method for a platform screen door control system according to claim 1, characterized in that, The obstruction rate of the vehicle door after the shielding door is opened is less than 50%.

4. The control method for a platform screen door control system according to claim 3, characterized in that, The station's central control server obtains the opening direction and movement of the platform screen door, verifies it with the train door information, and confirms that the platform screen door device's obstruction rate of the train door after opening is less than 50%.

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