CN104661889A - Arrangement and method for controlling train platform doors - Google Patents

Abstract

The invention relates to an arrangement for controlling train platform doors of a platform, comprising a door control unit on the platform side for controlling the opening and closing of the train platform doors and means for establishing a communication connection between the door control unit on the platform side and a control unit which controls the opening and closing of the train doors, wherein independently of the communication connection operating means are provided for detecting the correct stopping of a train at the platform, wherein independently of the communication connection operating means are provided for detecting the opening and closing of train doors of a train stopping at the platform, wherein means are provided for recognising a malfunction in the communication connection between the door control unit on the platform side and the control unit which controls the train doors, and wherein the door control unit on the platform side is designed to control the opening and closing of the train platform doors independently of the communication connection.

Description

Device and method for controlling train platform doors

technical field

The invention relates to a device and a method for controlling a platform door on a platform.

Background technique

In recent years, it has become more common in stations to separate the track area from the platforms, most often by glass barrier walls with "platform doors". This not only increases passenger safety, but also enables the station to run air conditioning more economically in terms of energy.

Various methods and devices are known for controlling platform doors and train doors so that the opening and closing of the platform doors and train doors are as synchronized as possible. German Patent No. DE 10 2004 045 558 B3 describes a method for controlling the doors of a rail vehicle and the corresponding doors on a platform barrier wall, wherein the vehicle and the platform barrier wall are closed before said vehicle stops at the next platform The availability of the doors (the presence of the doors and their effectiveness) is transmitted and processed between the vehicle and the platform via a wireless supported data exchange channel, and then transmitted to the passenger information system on the vehicle and the platform. On the platform, communication between the respective doors takes place via an infrared interface.

In the document GB 2 436152 A, a device for controlling the doors of rail vehicles and the doors of the platform barrier wall is described, wherein a dedicated door is provided on each door of the vehicle and each door of the platform barrier wall. transceiver. The communication between the doors of the vehicle and the doors of the platform barrier wall takes place directly through the respective transceivers, and the control commands for the doors are issued from the vehicle.

From the document WO2011/069503 A1 a method and a system for the synchronous control of platform doors and train doors are known, and have been proven particularly successful in practice. In this scheme, after the train stops, a communication connection is established between the door control unit on the train and the door control unit on the platform, and the synchronous opening and closing of the train door and the platform door are connected between the above-mentioned control units through the above-mentioned communication connection. Coordinated control wherein preferably pairs of train and platform doors are formed opposite each other and each pair of train and platform doors can be controlled individually without reference to any other pair of doors. With this arrangement, for example, if a train door fails, the train door and the corresponding platform door can be closed while other doors are opened. Clip protection can also be set for a specific pair of doors, so that if an obstacle is detected during the door closing process, only the corresponding pair of train and platform doors can be opened, while other pairs of doors can be closed.

Platform barrier wall systems are often used on platforms that carry heavy passenger traffic, where trains frequently stop within one minute of each other. Thus, a failure for any reason in the control of the opening and closing of the platform doors can lead to disruption of schedules and operations in the associated track network. Therefore, when the communication between the train and the platform is interrupted, there is an urgent need for an available backup system that can reliably control the opening and closing of the platform door.

Contents of the invention

The purpose of the present invention is to describe a device and method for controlling the opening and closing of platform doors, with the above device and method, if the communication link between the control unit for controlling the train doors and the control unit for controlling the platform doors The failure of the road can make the platform door and the train door open and close substantially synchronously.

This object is achieved with a device having the features of claim 1 and a method having the features of claim 4 . Independent claim 10 relates to the use of a facility with a plurality of sensors for creating a backup system for controlling the opening and closing of platform doors. The dependent claims relate to preferred variants and implementations.

The present invention enables the above device to intervene immediately in the event of a failure of the communication link between the train door controller and the platform door controller, and causes the platform door to open and close almost simultaneously with the train door, so that passengers do not perceive the communication link failure, especially so that no delays will occur during the operation of the train.

Further details and advantages of the invention will become apparent from the following preferred examples and demonstration models, which are intended only as illustrative and non-limiting.

Detailed ways

The installation according to the invention comprises: a door control unit on the platform for controlling the opening and closing of a platform door of a platform installed with a platform barrier wall separating the platform from the track area, and a door control unit for the platform on the platform with A device for establishing a communication link between the control units used to control the opening and closing of train doors of trains parked on the platform.

To establish a communication link, the wireless transceiver unit operates in the low frequency range of about 50 to 200 kHz. With these devices, as described in WO2011/069503 A1, a communication link can be established between the control unit on the train and the control unit on the platform, and through this communication link, the opening of the train doors and platform doors and off can be synchronized. In this context, the train door controller is usually the master system, which determines when the doors are opened and closed, while the platform door controller system obeys its instructions. A higher level controller can also be provided for fully automatic control of the train operation, enabling the train to run without a train operator. Such a controller can thus act as the master system and also be able to control the operation of the platform doors. While it is necessary to establish a link between such a controller and the train without an operator to ensure safe operation of the train, thanks to the facility according to the invention it is possible to The platform doors can be controlled according to the opening and closing of the train doors, so the link to the platform doors can be interrupted.

The frequency ranges mentioned above have the advantage that the links established therein will not be disturbed by radio signals emitted by mobile phones, WLAN or Bluetooth connections. Furthermore, the corresponding transceiver unit can easily be designed such that the signal strength required for good signal reception decays advantageously relatively quickly, especially in a propagation range of about 60 to 80 cm, so that the transceiver unit on the station The offset to and from the transceiver unit on the train can also be determined based on the strength of the communication link established with it, which in turn can be used to determine whether the train is operating correctly.

In this context, the term "correct operation" is understood in the usual way to mean that the train stops at a position where the train doors are located opposite the platform doors in such a way that passengers can step over from the train to the platform and from the platform Step over to the train. Because platform doors are usually slightly wider than train doors, trains can stop within a certain tolerance.

Since the present invention is intended to provide the ability to precisely control the opening and closing of the platform doors when the communication link between the train and the platform is interrupted or cannot be established at all, it is therefore possible to capture A device for a train to stop correctly on a platform. These devices may include, for example, a series of light barriers located in the front or rear area of the train or in the area of the wheels and capable of detecting the presence of the train in a specific area, on the platform that can read the RFID chip on the train when the train is about to stop in a specific area. An RFID chip reader unit, and/or an image capture and analysis unit capable of capturing and analyzing images of the track area. Particularly preferred are "wheel or axle sensors" which are mounted on rails to detect whether a wheel or axle of a rail vehicle is in a particular position. If the vehicles are fitted with rubber wheels, for example like some monorail systems, the train position can also be determined using electromagnetic induction coils.

In the presently preferred embodiment, three wheel sensors are mounted on the platform to determine that the train is correctly parked next to the platform, one sensor in the area at the front of the train, one in the middle area and one at the rear. If the aforementioned sensors generate different information from each other, erroneous information may be generated. Since it is unlikely that two sensors will fail at the same time, for the purpose of the subsequent process, if two sensors determine that the train has stopped at the correct position, but the third sensor does not detect the train, it can be considered that the train has stopped correctly and the platform door Can be turned on and off in the manner described below. At the same time, an error message can be generated, signaling that the sensor is faulty, so that the sensor can be replaced.

According to the invention, means are also provided for capturing the opening and closing of the doors of a train parked on a platform, wherein these means can also function independently of the communication link. The device may be of various designs and may include, for example, a camera, laser range finder, laser scanner, ultrasonic transceiver, microphone, and/or RFID chip reader unit. The precise mode of operation of the device will be fully discussed below.

The installation according to the invention also comprises means for identifying faults in the data communication enabling the synchronization of the opening and closing of the train doors and platform doors. Preferably, said means are computer-based and their design may be differently optimized for their respective operational applications depending on the configuration of the means used to establish the data communication link. For example, they may be designed in the form of a software module that compares the signal emitted by the means for detecting the opening and closing of the train doors with the status of the train doors reported to the platform door control unit via the communication link. As will be explained below, since the means for capturing the opening and closing of the doors of the train is redundantly designed, if the comparison result shows a discrepancy between the state of the door reported by the communication link and the state of the door actually captured, It can be concluded that there is an error in the communication link. Of course, the term "error" here can also be understood as referring to the failure to establish a communication link capable of synchronizing the train doors and platform doors.

The arrangement according to the invention enables the platform door control unit to be designed in such a way that it is able to control the opening and closing of the platform doors independently of the communication link if there is an error in the communication link, wherein when the communication link is functioning normally, The platform door control unit typically transmits commands to the platform doors to open and close the platform doors, such as from a train door control unit or a higher level control unit for controlling automatic train operation.

In a preferred embodiment, the aforementioned facility comprises means for outputting a train waiting signal controlled by the platform door control unit. This variant advantageously makes it possible to prevent train departure when the platform doors are still open for whatever reason, but this condition is not reported to the train operator or the control unit that automatically operates the train due to an error in the communication link. possible.

The method according to the invention can function as follows, for example: as described in WO2011/069503 A1, after the train enters the station, the communication link between the platform door control unit and the train door control unit is established and activated . Capturing the correct stop position of the train on the platform independently of this start-up process of establishing the communication link which may or may not have been successfully opened, in particular by means of wheel sensors, induction coils or suitable for the respective implementation site and the availability of the site other ways.

If a communication link is established, it can be used, for example, to synchronize the opening and closing of the train doors and platform doors in such a way that the train door control unit as master system initiates the opening and closing of the train doors and platform doors.

According to the present invention, the opening and closing of the doors of trains parked on the platform are captured regardless of the existence of a communication link between the platform door control unit and the train door control unit, and can also The above process is implemented in different ways. Devices known per se, such as laser range finders, can be arranged on the platform in the area of one or preferably more platform doors, wherein each device scans the doors of trains parked on the platform so that the opening of the train doors and off can be captured by suitable signal analysis.

In a particularly preferred embodiment, laser scanners are used to detect the opening and closing of the train doors and are fixed in the area of the platform doors, each laser scanner not only selectively scanning the train doors, which in this case may result in measurements error, and is able to scan a given surface or area of an angle, such as a 90-degree angle in the measurement plane inclined downward from a laser scanner mounted securely above a platform door, and measure the the distance between the objects. This data is transmitted to an electronic analysis unit. The above-mentioned measuring plane can be adjusted, for example, such that the laser distance measuring device can capture the sleeper when there is no train on the platform. When the train enters the station, the laser scanner detects the surface of the train with the doors closed. If the train has stopped in such a way that the train and platform are facing each other and facing each other, the laser scanner detects the opening and closing of the train doors by scanning at least a portion of the width of the train door opening. The laser scanner continuously scans the space in front of it, so changes in the position of the train doors can be detected, and the movement of the train doors can be controlled accordingly. Laser scanners can be set up to scan the opening the train door opens, or if the train door slides along the outside of the train as it opens and closes, they can scan the train the train door slides through as the train door opens and closes The area of the outer wall, depending on the model of the train door.

Alternatively, or in addition to the laser scanner, a camera may be installed in each of one or more platform door areas to capture the opening and closing of the train doors by analyzing video images of the train doors.

It is also possible to capture the opening and closing of the train door through the measurement result of the ultrasonic running time by using the corresponding ultrasonic transceiver arranged in the platform door area.

Since RFID chips and corresponding reader units are becoming cheaper and since RFID chips can also be easily mounted on train doors, it is also possible to install RFID chip reader units in platform door areas, e.g. Three or more reader units arranged side by side capture the movement of the RFID chip mounted on the train door parked on the platform along the aforementioned sensor direction and with the opening and closing of the train door.

Since the train doors often generate some special noise and sound wave signals when they are opened and closed, the opening and closing of the train doors can be captured by analyzing the sound wave signals received by one or more microphones installed in the platform door area.

According to the invention, the distance between the platform door control unit and the train door control unit can be determined, for example by comparing the data transmitted by the means for capturing the correct stop of the train with the data transmitted by the means for establishing the communication link. The presence of a communication link error. It may be, for example, that the means for capturing the correct stop position of the train has determined that the train has stopped at the correct position so that passengers can get off and on board, however the communication link has not yet been established. It may also be that although the communication link between the platform door control unit and the train door control unit has been established, due to an error in the communication link, the platform door control is not recorded by the train door control unit. When the train door is opened or closed, A device for capturing opening and closing of a train door captures movement of the train door. In such cases, the platform door control unit acquires autonomy independent of the train door control unit, so that it does not have to wait for any information from the train door control unit, but can control the opening and closing of the platform doors based on the captured opening and closing of the train doors On and off. In this case, where the platform doors are able to follow the movement of the train doors, it is advantageous to have the platform doors move slightly faster in the event of a failure of the communication link than when the communication link is in normal operation. Fast enough to ensure that there is no perceivable time delay between the movement of the train doors and the movement of the platform doors.

It would be advantageous for the platform door control unit to generate a train waiting signal, at least when the communication link between the platform door control unit and the train door control unit is faulty. In this context, such waiting signals can be sent visually in a known manner. If the train is running fully automatically, that is to say without a train operator, it is not necessary to output a visual signal. The wait signal can be output in other formats such as machine readable, including indirectly outputting by cutting off the current supply required for the movement of the electric train as long as the platform doors are open.

Since the opening and closing of the train doors in modern trains is usually centrally controlled by synchronous opening and closing of all train doors, it is theoretically sufficient to monitor the opening and closing of a single train door. Preferably, however, the opening and closing of at least three train doors, in particular a train door at the front of the train, a train door at the middle of the train and a train door at the A train door in the rear section would be beneficial. In this way, a redundant system is created such that the system operates reliably even if one sensor unit fails.

Failure or failure of a sensor device such as one of the laser scanner devices described above can be detected by continuously comparing the results from between all three sensor devices.

Finally, the invention also relates to having a plurality of spatially separated sensors for detecting the correct stop position of a train on a platform equipped with platform doors and for capturing the opening and closing of the train doors of a train stopped on the platform The installation of a plurality of sensors spaced apart in space serves as a backup system for controllers for platform door opening and closing. Thus, the backup system is able to take control of the opening and closing functions of the platform doors when the communication link cannot be established, or if the communication link between the platform door control unit and the control unit controlling the train doors fails.

In the case of a fully automatic system, the train without a vehicle operator is centrally controlled, and the control unit that controls the train doors is also responsible for controlling the platform doors. To ensure smooth operation, a substitute controller is provided on the platform, which takes over the opening and closing of the platform doors based on the recorded opening and closing of the train doors, should the connection to the central controller fail to be established.

Claims (10)

1., for controlling an assembly for the gate of platform, comprising:

For controlling the gate control unit of the opening and closing of described gate, and

For setting up the device of communication link between the control unit of the opening and closing of described gate control unit and control train door,

It is characterized in that,

Described platform is provided with the correct stop position for catching train and the device played a role independent of described communication link,

Be provided with the opening and closing of the train door for catching the train rested on described platform and the device played a role independent of described communication link,

Be provided with the device of the fault of the communication link between the control unit for detecting described gate control unit and described control train door, and

Described gate control unit is designed to, and makes described gate control unit independent of the communication link of the controller with the described train door of control, can control the opening and closing of described gate.

2. assembly according to claim 1, is characterized in that, is provided with the device for output train waiting signal, and the described device for output train waiting signal controlled by described gate control unit.

3. assembly according to claim 1 and 2, it is characterized in that, comprise at least one in following devices for the opening and closing of catching described train door, the device that plays a role independent of described communication link: camera, laser rangefinder, laser scanner, microphone, ultrasonic transmitter-receiver, RFID chip reader unit.

4., for controlling a method for the gate on platform, comprising:

Startup platform door control unit and control are parked in the foundation of the communication link between the control unit of the train door of the train on described platform,

It is characterized in that,

The stopping described platform being in the train on tram is detected independent of described communication link,

The opening and closing of the train door of the train be parked on described platform are detected independent of described communication link,

Determine that the communication link between described gate control unit and the control unit controlling train door exists mistake, and, if really there is mistake in described communication link,

The opening and closing of described gate are then controlled based on the opening and closing of the train door detected.

5. method according to claim 4, is characterized in that, as long as described gate is opened, just produces train waiting signal.

6. the method according to claim 4 or 5, is characterized in that, by adopting laser, laser scanner scans train door preferably by scanning angle scope or surface range, catches the opening and closing of described train door.

7. the method according to the arbitrary claim in claim 4-6, is characterized in that, by analyzing the video image of train door, that catches described train door states opening and closing.

8. the method according to the arbitrary claim in claim 4-7, it is characterized in that, by the measurement of super sonic time of run and/or by analyzing ultrasonic signal and/or by the signal of assessment from RFID chip reader unit, catching the opening and closing of train door.

9. the method according to the arbitrary claim in claim 4-8, it is characterized in that, by at least three, there is identical or different structure and the sensor device played a role independently of one another, particularly by three laser scanners, catch the opening and closing of train door.

10. the purposes of an assembly, described assembly is used as the stand-by system of the controller of the opening and closing of described gate, described assembly has the correct stop position for detecting train on the platform that gate is housed and the multiple sensors spatially separated, and for the train door of catching the train rested on described platform opening and closing and and the multiple sensors spatially separated, described stand-by system makes can not set up at communication link, if or gate control unit and control train door control unit between communication link et out of order time, the opening and closing function of gate is controlled.