Patent Description:
The present invention is essentially related to the field of guided vehicle, wherein the expression "guided vehicle" refers to public transport means such as subways, trains or train subunits, buses, etc., which are configured for transporting passengers and for which safety is a very important factor. Such guided vehicles are usually guided along a route or railway, e.g. by at least one rail, usually two rails.

More specifically, the present invention concerns the access to such guided vehicles from a platform for persons with reduced mobility.

Due to the use of different types of guided vehicles within a same network, platform floor levels are not always the same as guided vehicle floor levels, giving rise therefore to a vertical, and sometimes also horizontal, gap between the guided vehicle floor and the platform floor, making the access to the guided vehicle unsafe, notably for users with reduced mobility, e.g. using wheelchairs.

In order to solve this problem, different solutions exist, like manual or motorized gangways, elevators, or mobile ramps, which enable an operator to help a disabled user to access the guided vehicle.

Document <CIT> discloses a wheel-chair transfer system for transferring a person on a wheel-chair from a platform to a public transport vehicle or vice-versa.

Unfortunately, no satisfying automatic solution exists, and most solutions always require the presence of an operator. An objective of the present invention is to propose a system and method for automatically adapting a position of a gangway to each kind of guided vehicles stopping at a platform so that an easy access is automatically provided to disabled users for getting in and off any guided vehicle stopping at said platform.

For achieving said objective, the present invention proposes a system and a method as defined by the features of the independent claims for facilitating access to guided vehicles as disclosed by the objects of the independent claims. Other advantages of the invention are presented in the dependent claims.

The present invention concerns notably a system for providing to a user an access to a guided vehicle from a platform (or inversely to the platform from the guided vehicle), the system being preferentially configured for being installed on said platform, and comprising:.

the system being characterized in that it further comprises a control unit configured for automatically determining a position for the mobile gangway with respect to the platform so that the mobile gangway (<NUM>) forms at said position a bridge between the guided vehicle door (<NUM>) and the platform (<NUM>).

Preferentially, said position is determined from guided vehicle access characteristics (hereafter "GVACs" - GVACs are for instance the height and/or distance to platform from guided vehicle floor) of the guided vehicle stopping at said platform and from said exact position. The control unit is further configured for automatically controlling said moving means for moving said mobile gangway to said position.

The present invention proposes also a method for providing an access to a guided vehicle stopping at a platform, the method comprising:.

Further aspects of the present invention will be better understood through the following drawings, wherein like numerals are used for like and corresponding parts:.

<FIG> illustrates a preferred embodiment of a system <NUM> for accessing a guided vehicle <NUM> from a platform <NUM> according to the invention.

The system <NUM> is for instance arranged on a specific place <NUM> on the platform <NUM>, said system <NUM> comprising for instance a set gates <NUM> surrounding the specific place <NUM> in order to prevent any passenger of the platform <NUM> accessing said specific place <NUM>. Said gates <NUM> may comprise one or several doors <NUM>, e.g. laterally sliding doors, configured for providing access to said specific place <NUM>. The specific place <NUM> delimits an area wherein the system <NUM> according to the invention might change its position with respect to the platform <NUM>. Therefore, because of a potential moving of the system <NUM> according to the invention and in order to ensure the security of users waiting for a guided vehicle <NUM> on the platform, such a specific place <NUM> is defined and enclosed by the gates <NUM>.

The system <NUM> comprises one or several mobile gangways <NUM> configured for enabling a user or person <NUM>, in particular a person with reduced mobility, to access the guided vehicle <NUM> when the latter stops at the platform <NUM>, said mobile gangway <NUM> being configured and controlled by a control unit <NUM> so that it forms a bridge between the guided vehicle <NUM> and the platform <NUM>. Moving means <NUM> (see <FIG>) of the system <NUM> according to the invention are controlled by the control unit <NUM> and configured for automatically moving the mobile gangway <NUM> according to three degrees of freedom. Indeed, the moving means <NUM> are notably configured for lifting the mobile gangway from the platform floor level to an upper level and reversely down back to the platform floor level. This corresponds to the first degree of freedom illustrated by the arrow F1 in <FIG>. For this moving along the first degree of freedom, vertical moving means known in the art might be used for lifting (i.e. moving vertically) the mobile gangway <NUM>, like a telescopic lift or a scissor lift <NUM>. The moving means <NUM> are further configured for moving or extending the mobile gangway <NUM> or a part of the mobile gangway <NUM> towards the guided vehicle <NUM>, i.e. in a direction that is substantially perpendicular to the platform edge <NUM> that extends along the rail or track <NUM> on which the guided vehicle <NUM> stopping at the platform <NUM> arrives (and then departs). This corresponds to the second degree of freedom illustrated by the arrow F2 in <FIG>. For this moving along the second degree of freedom, lateral moving means might be used. For instance, for this moving of the mobile gangway <NUM> or a part of it according to the second degree of freedom, the lateral moving means may comprise extension rails or bars <NUM> configured for extending along the second degree of freedom and for supporting the mobile gangway <NUM> or the vertical moving means (e.g. supporting for instance the telescopic lift or scissor lift <NUM>), so that the latter can be moved, e.g. by means of actuators of the lateral moving means, on this extension rails or bars in the direction of the arrow F2. Finally, the moving means <NUM> are further configured for moving the mobile gangway <NUM> along a direction that is parallel to the platform edge <NUM> (or length), i.e. that extends along the rail or track <NUM> on which the guided vehicle <NUM> stopping at the platform <NUM> arrives (and then departs). This corresponds to the third degree of freedom illustrated by the arrow F3 in <FIG>. For this moving along the third degree of freedom, longitudinal moving means might be used. In other words, the mobile gangway <NUM> is configured for moving longitudinally along the track or rails within the specific place <NUM>. This provides the advantage that the guided vehicle <NUM> stopping at the platform does not need to stop at an exact and fix location, but has some margin corresponding to the longitudinal length of the specific place <NUM>. Indeed, the system <NUM> according to the invention will automatically adapt the longitudinal position of the mobile gangway <NUM> to a door position of the guided vehicle <NUM> at the platform, notably when this door position is located within the longitudinal extension of the specific place <NUM>. For this purpose, the moving means <NUM> may comprise longitudinal moving means configured for moving the mobile gangway <NUM> in a direction parallel to the edge <NUM> (i.e. substantially parallel to the track or rail or length of the guided vehicle <NUM> stopping at the platform3). Said longitudinal moving means might comprise a frame supporting the lateral and vertical moving means. Said frame might be supported by wheels configured for either moving on the platform (i.e. on the platform floor) or on rails <NUM> of the system installed on the platform <NUM> and extending along the edge <NUM>. According to the embodiment of <FIG>, the longitudinal moving means limit a longitudinal motion of the mobile gangway <NUM> to the specific place <NUM>. But the longitudinal moving means <NUM> according to the invention might also be not fixed to the platform (e.g. in the case of the frame supported by wheels contacting directly the platform floor) so that it enables a displacement, of course at low speed and incorporating safety displacement means, along the edge <NUM> and not limited to the specific place <NUM>. In such a case, the system is preferentially an autonomous automatic robot configured for automatically and autonomously adapting its position on the platform for facilitating users to access the guided vehicle <NUM> by providing a gangway from the platform floor to the guided vehicle floor. In such a case, the system comprises preferentially one or several cameras for acquiring images of a surrounding environment of the autonomous automatic robot, wherein the control unit <NUM> is configured for determining a path for the robot along the platform <NUM>, e.g. by the control unit <NUM> being configured for controlling the moving means, e.g. the longitudinal moving means, so that they follow a predetermined line affixed or painted on the floor of the platform <NUM> until reaching a position that should correspond to the position of a door <NUM> of the guided vehicle when the latter stops.

In order to control the moving means <NUM>, the system <NUM> according to the invention comprises said control unit <NUM>, which can be installed on a frame of the moving means (see <FIG>), e.g. the frame of the longitudinal moving means, or which can be located on the specific place <NUM> (see <FIG>) or at a remote location with respect to the platform <NUM>. Said control unit <NUM> is connected, e.g. with a wired or wireless connection, to the moving means <NUM> and to detectors <NUM> in order to exchange signals with them. The detectors <NUM> according to the invention are configured for enabling a determination of an exact position of a door <NUM> of the guided vehicle <NUM> when the latter stopped at said platform <NUM>. They can use several known in the art techniques, which can be combined with each other. For instance, the detectors <NUM> can comprise:.

In particular, the launching of the position determination of the mobile gangway <NUM> carried out by said control unit <NUM> is triggered by the reception of two signals, namely a first signal and a second signal. For this purpose, the control unit <NUM> according to the invention is in particular configured for communicating with the guided vehicle <NUM> and/or a remote control center. In particular, the first signal is a signal sent by the arriving guided vehicle <NUM>, or by a remote control center, or by the detector <NUM>, wherein said first signal comprises data indicating the arrival and stopping of the guided vehicle at the platform, optionally a time at which the guided vehicle will stop. The second signal is a signal configured for indicating the presence or absence of a user needing the mobile gangway. For this purpose and preferentially, the system according to the invention comprises a presence detector installed on-board the guided vehicle (e.g. within a space comprising said door <NUM>, wherein the presence detector is configured for determining a presence or absence of said user within said space) and/or on the platform and configured for detecting a presence or absence of a user needing the mobile gangway, and sending to the control unit <NUM> said second signal: for instance, a user on-board the guided vehicle is needing the mobile gangway to get off the train and/or a user waiting on the platform is needing the mobile gangway to get in the guided vehicle from the platform <NUM>. For instance, the detector <NUM> might be used by the control unit <NUM> for detecting the arrival and stopping of the guided vehicle <NUM> at the platform, and/or a presence of a user needing the mobile gangway <NUM> at said platform. The system according to the invention may further comprise said presence detector installed on-board the guided vehicle and/or on the platform <NUM> and configured for sending said second signal. Said presence detector can be a push button that needs to be pushed by a user needing the mobile gangway for getting in or off the guided vehicle <NUM>, pushing said button sending to the control unit <NUM> said second signal involved in the triggering of the position determination of the mobile gangway <NUM>. According to other embodiments, said presence detector can comprise one or several camera systems configured for identifying a user needing a mobile gangway <NUM>, and/or a wireless or RFID device installed in gates <NUM> on the platform and implementing a transparent corridor detection, wherein said wireless or RFID device is configured for detecting the presence of a user in need of the mobile gangway <NUM>.

The reception of said two signals by the control unit <NUM> triggers the start of the position determination of the mobile gangway only if the first signal indicates the arrival and stopping of the guided vehicle and the second signal indicates a presence of a user in need of the mobile gangway <NUM>.

Preferentially, the control unit <NUM> comprises one or several processors, a memory, connection means and communication means. The control unit <NUM> is configured for automatically determining a position of the mobile gangway <NUM> in function of a door position of the guided vehicle <NUM> which stopped at the platform <NUM>. As previously mentioned, said determination of the position of the mobile gangway <NUM> might be triggered by the reception of said two signals indicating the arrival and stopping of the guided vehicle at the platform and the presence (on-board the guided vehicle and/or on the platform) of a user in need of the mobile gangway for getting in or off the guided vehicle <NUM>.

In order to determine the position of the mobile gangway <NUM>, the control unit <NUM> is configured for acquiring GVACs for the guided vehicle <NUM> stopping at the platform <NUM>. Said GVACs might be acquired or received from one or several GVACs providers. A GVACs provider is for instance a remote control center, or the memory of the control unit <NUM>, or a database, or the guided vehicle stopping at said platform <NUM>, or a sensor device of the system according to the invention. In particular, said GVACs may comprise an identification of the guided vehicle that is going to stop at the platform. Preferentially, the control unit <NUM> is configured for identifying the guided vehicle <NUM> that is going to stop at said platform. For instance, the control unit might receive from the guided vehicle <NUM> or a remote control center an identification signal comprising an identification parameter enabling the control unit to identify the incoming guided vehicle. Additionally, or alternately, the control unit <NUM> may identify the stopping guided vehicle <NUM> from a schedule stored in said memory or database, wherein said schedule comprises or indicates the identity (or type) of the guided vehicles stopping at said platform <NUM> in function of the time. In such a case, the control unit <NUM> simply identifies the guided vehicle from its arrival time at the platform, each arrival time identifying or corresponding to a guided vehicle. Preferentially, and as mentioned before, said first signal may comprise the time at which the guided vehicle will stop at the platform, said time being used by the control unit <NUM> for identifying the guided vehicle and said GVACs. Indeed, from the identification of the guided vehicle, e.g. from said identification parameter, the control unit is configured for determining said GVACs: for instance, the memory or database comprises for, or associates to, each guided vehicle one or several GVACs. Optionally or alternately, the identification signal or said first signal already comprises said GVACs.

Thus, according to the present invention, the control unit <NUM> is preferentially configured for acquiring GVACs for the guided vehicle stopping at the platform. Said GVACs might be acquired from the guided vehicle itself or a remote control center through a communication with said guided vehicle or remote control center, or by associating to an identified stopping guided vehicle GVACs stored in a memory and characterizing the stopping guided vehicle. Alternately or in addition, the control unit <NUM> may use said sensor device for automatically and autonomously acquiring said GVACs: for instance, the sensor device may comprise one or several cameras, installed on the mobile gangway <NUM> and/or a frame supporting the mobile gangway <NUM>, and enabling the control unit <NUM> to determine said GVACs, like the width of the door <NUM> or the height of the floor, from images acquired in real time by said cameras, and used therefore for the position determination of the gangway <NUM>.

The GVACs according to the invention provide information about the access to the guided vehicle. It may comprise:.

The control unit <NUM> may further store in its memory additional information for automatically determining a position for the mobile gangway with respect to the platform, like the height h of the platform (i.e. the vertical distance separating the track surface plane from the platform floor plane). From this height h, it can determine also the height h', i.e. the vertical distance separating the contact surface of the rail from the platform floor plane. Knowing then for instance from the GVACs the height of the guided vehicle floor (defined for instance as the distance separating the guided vehicle floor from the rail contact surface), the control unit <NUM> may automatically calculate the distance separating the platform floor from the guided vehicle floor. The same applies for the lateral gap g, which can be determined by the control unit <NUM> as the difference between the lateral distance g' separating a rail from the platform and the distance e defined as the distance separating the plane in which the wheel are rotating and the external side of the vehicle door <NUM>. According to the present invention, such parameters like h, h', g, g', e, are also guided vehicle access characteristics and might be stored in a database or in the memory of the control unit <NUM> so that the latter can calculate for each guided vehicle <NUM> stopping at the platform the best position for the mobile gangway <NUM>.

According to the present invention, the specific place <NUM> could be the whole platform <NUM>, wherein gates <NUM> are used by the control unit <NUM> for determining whether a person with reduced mobility accessed the platform <NUM> or only a part of the platform <NUM>. In such a case, the specific place <NUM> might be located on the platform at a location defined in function of a predetermined configuration of guided vehicles moving on a railway network comprising a stop at said platform <NUM>. Said predetermined configuration of the guided vehicle ensures to always have at least one car of the guided vehicle that is located, with respect to the length of the guided vehicle, at a position that will correspond to the position of the specific place <NUM> when the guided vehicle stops at the platform <NUM>. The length of the specific place <NUM> according to the edge <NUM> would be typically ~<NUM> meters. Once the guided vehicle stopped with a car in front of the specific place <NUM>, the system according to the invention will automatically find the door <NUM> of said car and place the mobile gangway <NUM> in front of said door.

The control unit <NUM> uses the GVACs and the determined exact position for determining a position of the mobile gangway <NUM>, for instance with respect to the platform <NUM> or said reference position. For instance, it can use first the GVACs for roughly positioning the mobile gangway <NUM> while the guided vehicle <NUM> is stopping at the platform, and then it uses said exact position for refining the positioning or position determination of the mobile gangway <NUM>. In any case, both the GVACs and the exact position are used for controlling the moving means <NUM> in order to automatically position the mobile gangway <NUM> in front of the door <NUM> of the stopped guided vehicle <NUM>. The control unit <NUM> is configured for automatically controlling each of the lateral, longitudinal and vertical moving means of the moving means <NUM> for positioning within a <NUM>-dimension space the mobile gangway <NUM>.

Preferentially, the mobile gangway <NUM> might comprise a horizontal plate <NUM>, preferentially rectangular. In particular, the horizontal plate <NUM> is supported by a frame that can be moved up and down by the vertical moving means. Said horizontal plate is notably large enough for receiving a wheelchair.

The horizontal plate extends according to its length in a direction perpendicular to the edge <NUM> when facing a stopped guided vehicle. Preferably, one of the horizontal plate edges according to its length is preferentially connected to a ramp <NUM> extending from the horizontal plate <NUM> to the platform floor. According to its length, the horizontal plate <NUM> has one edge that is configured for bridging the gap g between the door <NUM> and the platform <NUM>, and another edge that is the edge connected to the ramp <NUM>. The connection between said another edge and the ramp <NUM> is preferentially made by a coupling comprising a rotary member <NUM> enabling a rotation of the ramp around an axis extending widthwise at said another edge of the horizontal plate <NUM>, so that the ramp <NUM> automatically accommodates any moving up or down of the horizontal plate <NUM>. Each lateral side of the horizontal plate <NUM> and optionally of said ramp <NUM> might be delimited by vertical gates <NUM> installed for ensuring the safety of a user of the mobile gangway <NUM>. Preferentially, and as shown in <FIG>, the mobile gangway <NUM> may comprise a series of mobile plates or slats <NUM> configured for bridging a gap between the mobile gangway <NUM> and the guided vehicle floor. Said mobiles plates <NUM> equip the edge of the horizontal plate <NUM> opposite to said another edge connected to the ramp <NUM>. Preferentially, each mobile plate <NUM> is characterized by two positions: a raised position, wherein the mobile plate <NUM> is substantially vertical, and a deployed position, wherein the mobile plate <NUM> is substantially horizontal. Each mobile plate comprises a detector <NUM> for detecting whether the mobile plate is facing an open door (i.e. an aperture of the guided vehicle) or a side of the guided vehicle (i.e. a wall). Said detector <NUM> can use an ultrasound sensor or any other method for detecting whether the door is open or closed. As long as the door is not open and/or as long as the detector detects a side of the guided vehicle, the control unit <NUM> is configured for keeping the mobile plate <NUM> in its raised position. Each mobile plate <NUM> in the raised position, respectively in the deployed position, lies in a same substantially vertical plane, respectively substantially horizontal plane. As soon as the detectors <NUM> of a whole set of directly successive mobile plates whose width correspond approximately to the width of the door of the guided vehicle detected an open door, the control unit is configured for deploying all mobile plates <NUM> of this set. According to the present invention, each mobile plate <NUM> is individually motorized so that its deployment completely saves the gap between mobile gangway and the guided vehicle floor. This ensures the use of the mobile gangway with any kind of guided vehicle whatever the characteristics of door separation, door width or height between guided vehicle floor and platform are.

Preferentially, at reception by the control unit of a departure signal indicating the departure of the guided vehicle, the control unit <NUM> moves the mobile gangway <NUM> to a safe position, e.g. a reference position. Optionally, at reception of said departure signal and before moving the mobile gangway, the control unit <NUM> first raises any deployed mobile plate <NUM> in its raised position and only then moves the mobile gangway to said safe position. Preferentially, before moving to said safe position, or optionally, before raising any deployed mobile plate <NUM>, the control unit <NUM> uses the detectors <NUM> or other sensors, e.g. installed on the mobile gangway <NUM>, to determine whether the mobile gangway is free of any user or still occupied, said moving or raising taking place only if said mobile gangway is free of any user. The departure signal might be received by the control unit <NUM> from a remote control center, or from a operator, or from the guided vehicle <NUM>. Advantageously, to prevent unsafe situations, the control unit <NUM> preferentially automatically sends an alarm signal to said guided vehicle and/or control center in the case the mobile gangway <NUM> is still occupied while the departure signal has been received.

<FIG> illustrates a preferred embodiment of the method for facilitating access to a guided vehicle according to the invention. The method comprises preferentially the following steps with respect to the system illustrated in <FIG>:
At step <NUM>, for each guided vehicle <NUM> that is going to stop at the platform, the control unit <NUM> automatically determines whether a person with reduced mobility needs the mobile gangway <NUM> for getting off or getting in the guided vehicle <NUM>. In particular, the control unit <NUM> automatically receives from the guided vehicle <NUM> or from the control center or from its detector <NUM> said first signal configured for indicating the arrival and stopping of the guided vehicle <NUM> at the platform <NUM>. In addition to the control unit <NUM> automatically receives said second signal comprising data indicating a presence or absence of a user needing the mobile gangway <NUM> for getting in or off the guided vehicle. In particular, said second signal might be received by the control unit <NUM> from one or several presence detectors installed on the platform <NUM> and/or in the guided vehicle. Said presence detectors are for instance said gates <NUM> configured for creating a detection corridor that provides access to the specific place <NUM> on the platform <NUM>, and in the guided vehicle <NUM>, it can be a push button notably installed at a predefined location in the guided vehicle <NUM>, for instance within a guided vehicle car specifically designed for people with reduced mobility. The control unit <NUM> may automatically receive said first and second signals. Said first and second signals are thus used by the control unit <NUM> for automatically detecting a presence of a person with reduced mobility needing the mobile gangway for getting off or getting in the guided vehicle <NUM>.

If the presence of a user needing the mobile gangway <NUM> is detected by the control unit <NUM>, then the latter automatically launches, at step <NUM>, a position determination of the mobile gangway. This position determination carried out by the control unit <NUM> is thus triggered by the first and second signal indicating respectively the stopping of the guided vehicle at the platform and the need of the mobile gangway by a user. If at least one of the first and second signal does not indicate such a stopping or such a presence, then the position determination of the mobile gangway does not take place. For said position determination, the control unit <NUM> is configured for automatically receiving or acquiring said GVACs (step <NUM>) and for automatically detecting or determining (step <NUM>) an exact position of a door of the guided vehicle once it stopped at the platform. And then, at step <NUM>, it automatically determines the position of the mobile gangway with respect to the platform from said GVACs and exact position. The GVACs and exact position enable the control unit to calculate the position of the mobile gangway <NUM> that is required for accessing the guided vehicle from the platform <NUM>, notably from said specific place <NUM>.

At step <NUM>, the control unit <NUM> automatically controls said moving means <NUM> for moving the mobile gangway <NUM> at said position. For instance, using the GVACs, the control unit <NUM> automatically controls the longitudinal moving means for longitudinally moving the mobile gangway <NUM> across the platform until reaching a position wherein the mobile gangway <NUM> should face (if the guided vehicle is not yet completely stopped) or faces (if the guided vehicle already stopped) the door <NUM> of the guided vehicle. Optionally, it can further control the vertical moving means in order to lift the mobile gangway. Said longitudinal and/or vertical moving may take place before complete stopping of the guided vehicle or after its stopping. Detectors are then used for detecting the exact position of the vehicle door <NUM> and can be used for a fine tuning of the longitudinal moving means and/or vertical moving means by the control unit <NUM> until the mobile gangway exactly faces the vehicle door <NUM>. Optionally, the control unit <NUM> may further control the lateral moving means for bringing the mobile gangway <NUM> close to the door <NUM> of the guided vehicle.

Preferentially, the control unit <NUM> is configured for automatically pairing with a door system of the door <NUM> that the mobile gangway has to face or is facing. For this pairing, a wireless connection might be used by the door system and the control unit for communicating with each other. Once both devices are paired, the control unit <NUM> automatically sends a signal to the door system, wherein said signal is configured for informing the door system that the mobile gangway is facing the door <NUM>. The reception of this signal triggers the automatic opening of the door <NUM> by the door system. Said door system might be part of the system according to the invention and is configured for being installed on-board a guided vehicle, and for controlling the opening and closing of the door <NUM> by pairing and communicating with the control unit <NUM>. Once the door <NUM> open, the control unit <NUM> may then further control the lateral moving means for moving the mobile gangway towards the door <NUM> and/or optionally the deployment of the mobile plates <NUM>, wherein a set of said mobile plates <NUM> is deployed so as to cover the gap between the horizontal plate <NUM> of the mobile gangway and the floor of the guided vehicle <NUM> so as to bridge said gap for the whole width of the door <NUM>. A camera or other sensors might be used for detecting and determining the door width and guided vehicle floor height, as well as the distance separating the horizontal plate <NUM> from the guided vehicle <NUM> so that a failure or a wrong mobile gangway position due for instance to an incorrect GVAC, might be prevented.

At step <NUM>, once the mobile gangway reached the position determined by the control unit <NUM>, safely bridging therefore the gap between the guided vehicle floor and the platform floor, then the control unit preferentially automatically opens one or several doors <NUM> of the gate <NUM> for enabling a user <NUM> to access or leave the guided vehicle via the mobile gangway <NUM>. Optionally or alternately, the control unit <NUM> is configured for automatically sending a boarding signal, said boarding signal being configured for triggering a generation of an acoustic and/or visual signal once the mobile gangway <NUM> is ready for the boarding or disembarking. Preferentially, the control unit <NUM> is configured for automatically sending a warning signal in case of a failure and/or incorrect positioning, wherein said warning signal is configure for automatically triggering the sending of a visual and/or acoustic warning message to the user.

Claim 1:
System (<NUM>) for providing an access to a guided vehicle (<NUM>), said system (<NUM>) comprising:
- a mobile gangway (<NUM>) configured for enabling a person (<NUM>) to get in or off the guided vehicle (<NUM>);
- moving means (<NUM>) configured for moving the mobile gangway (<NUM>) with respect to a platform (<NUM>);
- detectors (<NUM>) for determining an exact position of a door (<NUM>) of the guided vehicle (<NUM>) stopping at said platform (<NUM>);
and
- a control unit (<NUM>) configured for automatically determining a position for the mobile gangway (<NUM>) with respect to the platform (<NUM>) so that the mobile gangway (<NUM>) forms at said position a bridge between the guided vehicle door (<NUM>) and the platform (<NUM>), and for automatically controlling said moving means (<NUM>) for moving said mobile gangway (<NUM>) to said position.