Emergency call device with reset function and method for operating such an emergency call device

Abstract

The invention relates to an emergency call device (1) for sanitary cells of rail vehicles of public passenger transport with at least one emergency call button (2) and to a method for operating such an emergency call device (1), wherein the emergency call device (1) has at least one reset device for resetting the emergency call button (2) from a trigger position to a rest position of the emergency call button (2).

Description

Technical FieldThe invention relates to a self-call device for sanitary cells of rail vehicles of public transport, having at least one self-call button, and to a method for operating such a self-call device.Background ArtHelp call devices, in particular in the form of help call buttons, are prescribed according to the "REGULATION (EU) No. 1300 / 2014 DER COMMISSION of Nov. 18, 2014 on the technical specifications for interoperability with the accessibility of the Union's railway system for people with disability and people with restricted mobility", referred to below as TSI-PRM, in rail vehicles of public personal traffic at wheelchair parking spaces and in universalnass cells (cf. inter alia TSI-PRM, number 4.4.2). When such a help call device is actuated, a signal is sent to a person, for example a train driver, who can then initiate appropriate suitable measures. In addition, a communication connection can be established via the emergency call device between the person who is in need of assistance and emergency personnel, for example train personnel.These help call devices must have a certain size and a conspicuous appearance and tactile symbols according to the TSI-PRM mentioned, emit a visual and acoustic signal as an indication that the device has been actuated and can be actuated with the palm with a force exertion of at most 30 N.Due to the conspicuousness and the easy operability even for mobility-restricted persons, unintentional actuation frequently occurs, for example due to the low triggering force or due to confusion with flushing buttons or the like in the sanitary cell.In order to reduce incorrect actuations, WO 2021 / 037 535 A1 discloses a sliding cover for a help call device in rail vehicles, which cover the help call button in a rest position and must first be displaced from the rest position into an open position in order to enable the button to be released and thus actuated. However, there is an acceptance problem here, both in the operators of the rail vehicles and in the passengers.EP 2 093 735 A1 teaches a generic emergency call switch which can be reset by rotating a key.SUMMARY OF THE INVENTIONThe invention is based on the object of proposing a help call device which, on the one hand, is easily operable even for mobility-restricted persons and, on the other hand, helps to minimize unintentional false alarms.The object is achieved by the subject matter of the independent patent claims 1 and 6.By decoupling the simple triggerability of a help call and its withdrawal function, which is limited in particular in time, the number of actual false alarms to the vehicle personnel and thus the triggering of an assist action is significantly reduced and the number of false messages in the diagnosis is also significantly reduced.Embodiments of the InventionAn assistance call device according to the invention for sanitary cells of rail vehicles of public transport comprises at least one assistance call button which can be actuated from a rest position by pressing with a predetermined force into a release position, and at least one resetting device for resetting the assistance call button from its release position into its rest position. According to the invention, the reset device can be designed as a reset button, also called a reset button. The reset button can be arranged on the auxiliary call device in a freely accessible manner and, in particular, can be actuated independently of the auxiliary call button. In addition or as an alternative to a reset button of the auxiliary call device which is separate from the auxiliary call button, the auxiliary call button can also itself comprise the reset device. The reset device is then integrated into the auxiliary call button and the auxiliary call button can be reset by means of the integrated reset device by rotating and / or pulling from its release position into its rest position. The resetting of the auxiliary call button can be effected manually by a pure rotational movement of the auxiliary call button in a predetermined direction by a predetermined angle, for example at least 30° or even at least 45°, by a pure pulling movement of the auxiliary call button with a predetermined force of less than 30 N in the direction from the release position into the rest position or by a combined rotational-pulling movement.The auxiliary call button has in particular a locking device which locks it in the release position after actuation and can therefore only be returned to its original rest position by means of the return device. If the auxiliary call button is thus actuated by a person-intentionally or unintentionally-then it remains in its release position and does not automatically return to its rest position. However, in order that unintentional triggering does not lead to unintentional alerting of assistance forces, the reset device makes it possible to reset the assistance call button back into its starting position.As provided in all generic emergency call devices, an emergency call signal is also generated by the emergency call device according to the invention and transmitted in a predefined manner to an emergency center and output there in order to alert emergency personnel. For this purpose, the help call device according to the invention comprises at least one alerting device. This can be designed as a simple switch for producing and / or interrupting an electrical contact or as an electronic assembly. The alerting device can also have a transmitting and / or receiving unit in order to transmit a generated help call signal to a predetermined help center or in order to establish a communication connection with the help center. The aid can be on the rail vehicle or on land, for example a land-side control center. Usually, the help call signal is transmitted to the train personnel and output, for example also by means of a mobile terminal.In a further development, the alarm device is configured to generate a help call signal only as a function of a predefined time period of uninterrupted position of the help call button in its triggering position and to transmit it to the help location. For this purpose, the alerting device can comprise a timer unit. The timer device can in turn be designed as a simple timer or as a digital timer. The time interval can be predefined, for example, between 5 s and 10 s.Thus, a person, in particular a passenger of the rail vehicle, has the predetermined time interval to correct an unintentional actuation of the auxiliary call button by resetting it by means of the resetting device and to prevent false alarming of auxiliaries, in particular of train personnel.According to this embodiment, the auxiliary call button has the above-mentioned locking device which holds it in the release position after actuation and can therefore only be returned to its original rest position by means of the return device.In order that an unintentional actuation can easily be detected, the assistance call device according to a further development comprises at least one optical and / or at least one acoustic signaling element for signaling an actuation of the assistance call button. In addition, the at least one optical and / or the at least one acoustic signaling element can also serve for signaling a triggering of a emergency call signal by the emergency call device. An optical signaling element can be provided in the form of a lighting means, for example at least one or more LEDs, in the self-call button and / or in the reset button. An acoustic signaling element may be a loudspeaker for outputting an acoustic signal and / or in combination with an additional microphone for establishing a speech connection with vehicle personnel. In order to distinguish an actuation of the emergency call button from an actually performed generation of an emergency call signal, the optical and / or acoustic signals can also differ. Thus, firstly, when an actuation is carried out, a lighting means can illuminate yellow and flash red after an elapsed time period without resetting and thus after a help call signal has been triggered. It would also be possible to initially produce an automatic voice output with the information about the actuation of the help call button and with the information about the duration of the predetermined time period until the end of which no help call signal is generated, and with information about the capability of resetting the help call button. After the time interval without resetting has elapsed, an acoustic alarm signal or a voice output via the effected alarm could then be output and / or a voice connection could be established with the auxiliary personnel.The method according to the invention for operating the help call device according to the invention correspondingly comprises the following method steps:• Actuating the at least one auxiliary call button, in particular by a person, and thus moving the auxiliary call button from its rest position into its release position,• Generating and outputting an optical and / or acoustic signal via the activation of the emergency call button by the emergency call device for the person by whom the activation was effected, in particular by means of the optical and / or acoustic signaling element; and• Actuating the reset device within a predetermined period of time after the successful actuation of the auxiliary call button, in particular manually by the person actuating the auxiliary call button and thus resetting the auxiliary call button from its release position into its rest position, and in particular also transmitting and outputting a auxiliary call signal, in particular by means of the alerting device, if the auxiliary call button is uninterrupted in its release position over the predetermined period of time since the successful actuation.If the auxiliary call button is not reset from its release position into its rest position until after the predetermined time period has elapsed since the actuation has taken place, the auxiliary call signal is nevertheless triggered. The help call signal itself can only be terminated by authorized personnel.Regardless of the grammatical sex of a certain term, individuals with male, female or other sex identity are included.The invention permits numerous embodiments. It is explained in more detail with reference to the following figures, in each of which an exemplary embodiment is shown. Identical elements in the figures are provided with identical reference numerals.Exemplary Embodiments of the DrawingsFIG. 1 shows schematically an embodiment of a help call device according to the invention with a help call button and a reset button, FIG. 2 schematically shows a further embodiment of a help call device according to the invention with a help call button with an integrated reset device in its rest position, FIG. 3 shows schematically the auxiliary call button from FIG. 2 with the reset device actuated.DETAILED DESCRIPTION OF THE EMBODIMENTSFIG. 1 schematically shows an embodiment of a help call device 1 according to the invention. It comprises a help call button 2, here designed according to the TSI-PRM, and a reset button 3.The actuation of the auxiliary call button 2 is indicated here by an optical signaling element 4, which is integrated here as a simple light-emitting diode in the reset button 3.In this embodiment, the triggering of a emergency call signal is emitted as an alarm sound by means of an acoustic signaling element 5, which is realized in the form of a loudspeaker integrated into the emergency call button 2.If the reset button 3 is actuated within a predetermined period of time, i.e. if it is pressed, the auxiliary call button 2 is reset and the triggering of the auxiliary call signal is omitted.Similarly, the embodiment of Figures 2 and 3 operates illustrating a two state Reset Integrated Help Call Button 2. In FIG. 2, the auxiliary call button 2 is in its release position, which is displaced into the plane of the drawing. If it is now rotated by at least 30° to the right, as outlined in FIG. 3, the resetting device brings about a resetting of the auxiliary call button 2 from its release position into its rest position.Regardless of the grammatical sex of a certain term, individuals with male, female or other sex identity are included.

Claims

A self-call device (1) for sanitary cells of rail vehicles of public transport, comprising at least one self-call button (2) which can be actuated from a rest position by pressing with a predetermined force into a release position, wherein the self-call device (1) has at least one resetting device for resetting the self-call button (2) from the release position into the rest position, characterised in that the resetting device is designed as a resetting button (3) and / or in that the resetting device is integrated into the self-call button (2) and the self-call button (2) can be reset by means of the integrated resetting device by rotating and / or pulling from the release position into the rest position.The emergency call device (1) according to claim 1, characterized in that it comprises at least one optical and / or at least one acoustic signaling element (4, 5) for signaling an actuation of the emergency call button (2) and / or for signaling a generation of an emergency call signal by the emergency call device (1).The help call device (1) according to any one of claims 1 or 2, characterized in that it comprises an alerting device configured to generate a help call signal depending on a predetermined time period of uninterrupted position of the help call button (2) in the triggering position.Method for operating a help call device (1) according to claim 3, characterised bythe following method steps: • actuating the at least one help call button (2); • generating an optical and / or acoustic signal via the actuation of the help call button (2) that has taken place; • actuating the reset device within the predefined time period after the actuation of the help call button (2) that has taken place or generating the help call signal when the help call button (2) is in the release position without interruption after the expiration of the predefined time period.

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