Haptic feedback solution for one or more elevator systems

Abstract

The invention relates to a method for a haptic feedback system (100) for one or more elevator systems (101). The method comprises detecting (210) a user indication provided via a user interface device (102) of one of the one or more elevator systems (101), receiving (220) at least one piece of status information, and generating (230) a haptic output signal via the user interface device (102) in accordance with the at least one piece of status information. The invention also relates to a control unit, a haptic feedback system and a computer program at least partially performing the method.

Description

[0001] This application is a divisional application of the Chinese invention patent application (application number: 201980101316.0, application date: November 20, 2019, invention name: tactile feedback solution for one or more elevator systems). Technical Field

[0002] The present invention generally relates to the technical field of elevators. In particular, the present invention relates to a user interface device for an elevator. Background Art

[0003] Typically, an elevator system may have several user interface devices that enable a user, such as a passenger, to interact with the elevator system. The user interface devices are typically one located in the elevator car, such as a car operating panel, and another located at a landing floor, such as a landing call panel. The user interface devices may include input devices, such as buttons, etc., for requesting services from the elevator system. The requested services may, for example, refer to requesting transportation from the elevator system, requesting to open / close a door, requesting a communication connection with a contact center, indicating an emergency, and the like.

[0004] In modern elevator systems, touch devices such as touch screens replace panels with physical input devices. Touch devices can also provide tactile outputs that can at least be detected by users. Summary of the invention

[0005] A simplified overview is provided below to provide a basic understanding of some aspects of various inventive embodiments. This overview is not an extensive overview of the present invention. It is neither intended to determine the key or primary elements of the present invention nor to describe the scope of the present invention. The following overview only presents some concepts of the present invention in a simplified form as a prelude to a more detailed description of exemplary embodiments of the present invention.

[0006] The object of the invention is to propose a method, a control unit, a tactile feedback system and a computer program for one or more elevator systems. Another object of the invention is that the method, the control unit, the tactile feedback system and the computer program for one or more elevator systems enable dynamic control of the tactile feedback of a user interface device.

[0007] The objects of the invention are achieved by a method, a control unit, a tactile feedback system and a computer program as defined by the respective independent claims.

[0008] According to a first aspect, a method for a tactile feedback system for one or more elevator systems is provided, wherein the method comprises: detecting a user indication provided via a user interface device of one of the one or more elevator systems, receiving at least one state information, and generating a tactile output signal via the user interface device according to the at least one state information.

[0009] The generated tactile output signal may include one or more characteristics specific to the state.

[0010] One or more characteristics of the tactile output signal may include: amplitude, duration, and / or pattern.

[0011] The at least one status information may include: a status of a building in which the elevator system including the user interface device is located; a status of a user of the user interface device; a status of the user interface device; and / or a status based on a theme.

[0012] Additionally, the status of a building may depend on the type of building, the destination floor type, the destination floor number, or the time of day.

[0013] Alternatively or additionally, the status of the user may be detected based on data received from at least one sensor device arranged in the vicinity of the user interface device and / or by using access control.

[0014] Alternatively or additionally, the state of a user interface device may be detected based on data received from at least one sensor of a touch-based input device of one or more user interface devices, wherein the at least one sensor of the touch-based input device is arranged to detect a force received by the touch-based input device.

[0015] According to a second aspect, a control unit for a tactile feedback system for one or more elevator systems is provided, wherein the control unit is configured to: detect a user indication provided via a user interface device of one of the one or more elevator systems, receive at least one state information, and generate a tactile output signal via the user interface device based on the at least one state information.

[0016] The generated tactile output signal may include one or more characteristics specific to the state.

[0017] One or more characteristics of the tactile output signal may include: amplitude, duration, and / or pattern.

[0018] The at least one status information may include: a status of a building in which the elevator system including the user interface device is located; a status of a user of the user interface device; a status of the user interface device; and / or a status based on a theme.

[0019] Additionally, the status of a building may depend on the type of building, the destination floor type, the destination floor number, or the time of day.

[0020] Alternatively or additionally, the status of the user may be detected based on data received from at least one sensor device arranged in the vicinity of the user interface device and / or by using access control.

[0021] Alternatively or additionally, the state of a user interface device may be detected based on data received from at least one sensor of a touch-based input device of one or more user interface devices, wherein the at least one sensor of the touch-based input device is arranged to detect a force received by the touch-based input device.

[0022] According to a third aspect, a haptic feedback system for one or more elevator systems is provided, wherein the haptic feedback system comprises: one or more user interface devices of the one or more elevator systems, and the above-mentioned control unit.

[0023] The one or more user interface devices may be arranged to at least one of: an elevator car, a surface of a building in which an elevator system including the one or more user interface devices is located.

[0024] According to a fifth aspect, a computer program is provided, wherein when executed by at least one processor, the computer program causes a control unit of a tactile feedback system to perform the above method.

[0025] Various exemplary and non-limiting embodiments of the invention, both as to construction and method of operation, together with additional objects and advantages thereof, will be best understood from the following description of specific exemplary and non-limiting embodiments when read in conjunction with the accompanying drawings.

[0026] The verbs "comprise" and "include" are used in this document as open limitations, which neither exclude nor require the presence of unrecited features. Unless expressly stated otherwise, the features recited in the dependent claims may be freely combined with each other. Furthermore, it should be understood that the use of "a" or "an" throughout the text, i.e. the singular form, does not exclude a plurality. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In the drawings, embodiments of the invention are shown by way of example and not by way of limitation.

[0028] Figure 1A An example of a tactile feedback system according to an embodiment of the present invention is schematically shown.

[0029] Figure 1B and 1C A non-limiting example of an elevator system is schematically shown, in which a haptic feedback system according to an embodiment of the invention may be deployed.

[0030] Figure 2 Aspects related to the method according to an embodiment of the present invention are schematically illustrated.

[0031] Figure 3 An example of a control unit according to an embodiment of the present invention is schematically shown. DETAILED DESCRIPTION

[0032] Figure 1A An example of a tactile feedback system 100 according to an embodiment of the present invention is schematically shown. The tactile feedback system 100 may include one or more user interface devices 102 of one or more elevator systems 101 and a control unit 104 for providing dynamic tactile feedback to users of the one or more user interface devices 102. Figure 1B and 1C , may at least partially describe at least some aspects of embodiments according to the present invention. Figure 1B and 1C A non-limiting example of one or more elevator systems 101 is shown in which a haptic feedback system including one or more user interface devices 102 and a control unit 104 of the one or more elevator systems 101 may be arranged. The one or more user interface devices 102 may be arranged to a surface 106 of a building 108, such as a wall, or to a surface 107 of an elevator car, such as one of the side walls. The foregoing are non-limiting examples of surfaces on which the user interface devices 102 may be implemented. Figure 1B In the example of , the elevator car has reached the middle floor, and the door of the elevator car and the landing door of the middle floor are open to expose the view inside the elevator car. The user interface device 102 arranged to the elevator car can be, for example, a car operating panel. The user interface device 102 arranged on the surface 106 of the building 108 can be, for example, a hall operating panel or a landing call panel.

[0033] exist Figure 1B In the example of , a building 108 includes an elevator system 101, and the haptic feedback system 100 can be implemented in the one elevator system 101 to provide dynamic haptic feedback to users of one or more user interface devices 102 of the elevator system 101. Alternatively, a building 108 can include two or more elevator systems 101, and the haptic feedback system 100 can be implemented in the two or more elevator systems 101 to provide dynamic haptic feedback to users of one or more user interface devices 102 of the elevator system 101. Figure 1C In the example of FIG. 1 , two buildings 108 each include an elevator system 101, and the haptic feedback system 100 can be implemented in the two elevator systems 101 located in two different buildings 108 for providing dynamic haptic feedback to users of one or more user interface devices 102 of the elevator systems 101. Alternatively, the haptic feedback system 100 can be implemented in multiple elevator systems 101 located in one or more buildings 108 for providing dynamic haptic feedback to users of one or more user interface devices 102 of the elevator systems 101. The foregoing are non-limiting examples of elevator systems 101 in which the haptic feedback system 100 can be implemented.

[0034] The user interface device 102 may include a touch-based input device, such as a touch button, a touch screen, etc., for requesting a service from the elevator system 101 to which the user interface device 102 belongs. The requested service may, for example, refer to requesting transportation from the elevator system 101, requesting to open / close a door, requesting a communication connection with a contact center, indicating an emergency, etc. In addition, the touch-based input device of the user interface device 102 may be equipped with an electronic device, such as a piezoelectric device, such as a piezoelectric disk, suitable for providing at least a tactile output detectable by a user. In addition, according to some embodiments, the user interface device 102 may be equipped with an electronic device suitable for providing any other detectable output by a user, such as a visual output or an auditory output.

[0035] Figures 1A to 1C The control unit 104 shown in can be arranged to at least partially control one or more user interface devices 102. The implementation of the control unit 104 can be completed as an independent entity or as a distributed control environment between multiple independent devices, such as multiple servers providing distributed control resources. The communication between the control unit 104 and one or more user interface devices 102 can be implemented in a wired manner or at least partially in a wireless manner. According to an embodiment of the present invention, the control unit 104 can be any dedicated local or remotely arranged control device, such as a server device, which is configured to perform the tasks of the control unit 104. According to another embodiment of the present invention, the control unit 104 can be, for example, an elevator controller entity or a part of an elevator controller entity, which is arranged to at least partially control at least some entities of one or more elevator systems 100. When the control unit 104 is at least implemented as a part of an elevator controller, the tactile feedback system 100 can be implemented in the one or more elevator systems 101 controlled by the elevator controller. According to another embodiment of the present invention, the control unit 104 can be an external control unit. Some non-limiting examples of external control units can be, for example, a remote server, a cloud server, a computing circuit, a computing device network. The external unit here refers to a unit separate from the elevator system 100. In Figures 1A to 1C , the control unit 104 and the one or more user interface devices 102 are illustrated as separate units, but according to an embodiment of the present invention, the control unit 104 may be at least partially included in the one or more user interface devices 102. In other words, the control unit 104 may be implemented at least partially in the one or more user interface devices 102. The control unit 104 may be implemented so that the control unit 104 is at least partially included in a single user interface device 102, or the control unit 104 may be implemented as a distributed control environment between multiple user interface devices 102.

[0036] According to an embodiment of the present invention, the control unit 104 can be communicatively coupled to one or more elevator controllers of the elevator system 100 for receiving any elevator-related data. The communication between the control unit 104 and the elevator controllers of the one or more elevator systems 100 can be implemented at least partially in a wired manner or wirelessly.

[0037] Now, by referring to Figure 2 To describe at least some aspects of the present invention, Figure 2 A method according to an embodiment of the present invention is schematically shown in FIG.

[0038] In step 210, a user indication provided via a user interface device 102 of one of the one or more elevator systems 101 may be detected. According to an embodiment of the present invention, the user indication may be provided in response to a user's interaction with one of the touch-based input devices of the user interface device 102. For example, in response to detection of a touch, such as with a finger or any other indicator, on a touch button or touch screen of the user interface device 102, for requesting a service from the elevator system 101 to which the user interface device 102 belongs. According to another embodiment of the present invention, the user interface device 102 may be equipped with one or more proximity sensors, and the user indication may be provided in response to the one or more proximity sensors detecting an object (e.g., a user) near the user interface device 102 (i.e., within an operating area of ​​the one or more proximity sensors).

[0039] In step 220, at least one state information may be received. In response to detecting the user indication, at least one state information may be received. The at least one state information may be received from a memory of the control unit 104, one or more sensor devices, any external entity, and / or any database.

[0040] According to an embodiment of the present invention, at least one state information may include a state of a building 108 in which the elevator system 101 including the user interface device 102 resides. The state of the building 108 may depend on the type of the building 108. Non-limiting examples of different types of buildings 108 may be residential buildings, office buildings, hospitals, nursing homes, libraries, hotels, shopping malls, etc. The state of the building 108 depending on the type of the building 108 may be predefined or selected during the configuration of the elevator system 101 in the building 108. The predefined or selected state of the building 108 depending on the type of the building 108 may be stored in the memory of the control unit 104 and / or provided for storage in any external entity or database. Alternatively or additionally, the state of the building 108 depending on the type of the building 108 may be adjusted, i.e. changed during the use of the elevator system 101. For example, if the use purpose of the building 108 changes from one type to another, the new state of the building 108 depending on the type of the building 108 may be redefined and stored in the memory of the control unit 104 and / or provided for storage in any external entity or database.

[0041] Furthermore, the state of the building 108 may depend on the type of destination floor. Non-limiting examples of different types of destination floors may be spas, cinemas, offices, etc. The state of the building 108 depending on the type of destination floor may be predefined or selected during the configuration of the elevator system 101 in the building 108. The predefined or selected state of the building depending on the type of destination floor may be stored in the memory of the control unit 104 and / or provided for storage in any external entity or database. Alternatively or additionally, the state of the building 108 depending on the type of destination floor may be adjusted, i.e. changed during the use of the elevator system 101. For example, if the purpose of use of the floor changes from one type to another, the new state of the building depending on the type of destination floor may be redefined and stored in the memory of the control unit 104 and / or provided for storage in an external entity or database.

[0042] In addition, the state of the building 108 may depend on the destination floor number. In other words, each floor of the building 108 may have its own state.

[0043] Furthermore, the state of the building 108 may depend on the time of day. In other words, each time of day has its own state. The control unit 104 may know the time of day, or the control unit 104 may receive information indicating the time of day from an external entity.

[0044] According to another embodiment of the present invention, at least one state information may alternatively or additionally include a state of a user of the user interface device 102 by providing a detected user indication. According to an embodiment of the present invention, the tactile feedback system 100 may also include at least one sensor device, such as an optical imaging device, such as a camera, which is arranged near the user interface device 102. The at least one sensor device may be arranged near one or more user interface devices 102 so that the at least one sensor device can detect a user of the user interface device 102, i.e., detect within the operating area of ​​the at least one sensor device. Based on data received from the at least one sensor device, the state of the user may be detected, i.e., identified. According to another embodiment of the present invention, the tactile feedback system 100 may alternatively or additionally use access control to detect, i.e., identify the state of the user. Access control may be based on the use of a key card; a tag; an identification code; such as a personal identification number (PIN) code, an ID card number; and / or biometric techniques, such as fingerprints, facial recognition, iris recognition, retinal scanning, voice recognition, etc. The tactile feedback system 100 may be equipped with one or more devices arranged to provide access control-based identification of the user state. Alternatively, the user's status may be detected, i.e., identified, based on data received from an access control system of one or more elevator systems 101 to which the haptic feedback system 100 may be communicatively coupled in a wired or wireless manner. The user's status may depend on, but is not limited to, age, disability, location, etc.

[0045] According to another embodiment of the present invention, the at least one state information may alternatively or additionally include the state of the user interface device 102. The state of the user interface device 102 may be derived from the data received from the user interface device 102. The touch-based input device of one or more user interface devices 102 may detect the force received by the touch-based input device, for example due to a touch on the touch-based input device of the user interface device 102, for example with a finger or any other indicator. For example, the touch-based input device of one or more user interface devices 102 may each include at least one sensor device, which is arranged to detect the force received by the touch-based input device by detecting the amount of bending of the touch-based input device due to a touch, for example with a finger or any other indicator. The at least one sensor device may be, for example, but not limited to, a capacitive sensor, an inductive sensor, an electromagnetic sensor, a resistive sensor, a piezoresistive sensor, a piezoelectric sensor, an optical sensor, or a resonance-based sensor. Preferably, the at least one sensor device may be a piezoelectric sensor, such as a piezoelectric disc, and the same piezoelectric disc may also be used to provide a tactile output signal. This reduces the number of required components. The force detected by at least one sensor device may be stored in a memory of the control unit 104 and / or provided for storage in an external entity or database. According to an embodiment of the present invention, the force detected by at least one sensor device may be used to monitor the operation of a touch-based input device based on conditions and / or for diagnosis of a touch-based input device. For example, if one or more touch-based input devices are detected to receive a greater force in monitoring and / or diagnosis, this may indicate that the one or more touch-based input devices may be more likely to fail earlier than other touch-based input devices. Even before the touch-based input device fails, these one or more touch-based input devices may be replaced with new touch-based input devices. Therefore, this also makes preventive maintenance possible. According to another embodiment of the present invention, the detected force may be used to adjust the activation force required for one or more touch-based input devices. For example, if one or more touch-based input devices are detected to receive a greater force, the activation force required for the one or more touch-based input devices may be adjusted, such as reducing the activation force required for the one or more touch-based input devices. This can increase the life of the touch-based input device and / or at least partially prevent early failure of the touch-based input device.

[0046] According to another embodiment of the present invention, at least one state information may alternatively or additionally include a state based on a theme. A state based on a theme may be derived from data received from an external entity, such as a content management system, an infotainment system, any other external system or a database. The control unit 104 may be communicatively coupled to the external entity for receiving data indicating a state based on a theme from the external entity and having at least some form of access to the external entity. The communication between the control unit 104 and the external entity may be implemented in a wired manner or at least partially in a wireless manner. Alternatively, a state based on a theme may be manually indicated. A state based on a theme may depend on, for example, but not limited to, a visual advertisement displayed on one or more screens (e.g., an information screen) of a building 108, in which the elevator system 101 including the user interface device 102 is located.

[0047] In step 230, a tactile output signal via the user interface device 102 may be generated based on at least one state information received. The tactile output signal may be, for example, a vibration-type output signal or any other tactile output signal detectable by a user. The generated tactile output signal may include one or more features specific to the state. In other words, at least some of the at least one state information may include a specific tactile output signal of the user interface device 102, which may be distinguished from other information in the at least one state information. One or more features of the tactile output signal may include: amplitude, duration, and / or pattern. The amplitude of the tactile output signal may define the strength or intensity of the tactile output signal, i.e., the tactile feedback. Some non-limiting examples of different modes of the tactile output signal may be continuous, pulsed, beeped, fluctuating, or any other suitable mode. The pulsed tactile output signal may have different pulse widths and / or amplitudes. Some non-limiting examples of tactile output signals having one or more features specific to the state may be: strong, soft, calm, smooth, relaxed, clear, sharp, fast, fluctuating, clicking, pulsing, etc.

[0048] Next, at least some aspects of the present invention are described by reference to non-limiting example cases of haptic feedback solutions.

[0049] According to a non-limiting example, if the at least one state information includes the state of the building 108, such as the type of the building 108, a tactile output signal including a feature indicating calm and / or relaxing tactile feedback may be generated, for example but not limited to, in a library or a high-end hotel. Meanwhile, a tactile output signal including a feature indicating strong tactile feedback may be generated, for example but not limited to, in a hospital, a nursing home, or other buildings where disabled people may often appear.

[0050] According to another non-limiting example, if at least one status information includes a status of the building 108, such as a type of destination floor, a tactile output signal may be generated that includes a characteristic indicating calm tactile feedback, such as a wave-type feedback, such as, but not limited to, that the destination floor is a spa floor.

[0051] According to another non-limiting example, if the at least one state information includes a state of the building 108, such as a destination floor number, the tactile output signal includes a feature indicating a number of clicks, such as but not limited to, corresponding to the destination floor number. For example, if the destination floor is the fifth floor, the tactile output signal includes five clicks.

[0052] According to another non-limiting example, if the at least one state information includes the state of the building 108, such as the time of day, a tactile output signal including a characteristic indicating calm and / or relaxing tactile feedback may be generated, for example but not limited to, during peak hours, such as in the morning or afternoon. Whereas a tactile output signal including a characteristic indicating rapid or fast-pulsing tactile feedback may be generated, for example but not limited to, during off-peak hours. This may improve the user experience by making the elevator ride more comfortable.

[0053] According to another non-limiting example, if the at least one state information includes the state of the user of the user interface device 102, a tactile output signal including features indicating strong and / or clear tactile feedback may be generated for, for example but not limited to, an elderly person or a disabled person, while a tactile output signal including features indicating softer tactile feedback may be generated for other people.

[0054] According to another non-limiting example, if the at least one state information includes a state of the user interface device 102 , a tactile output signal including characteristics indicating strong and / or distinct pulsating tactile feedback may be generated to indicate excessive force directed toward the touch-based input device.

[0055] According to another non-limiting example, if the at least one state information includes a theme-based state, a haptic output signal including characteristics indicating strong and / or sharp haptic feedback may be generated, for example, but not limited to, when an action movie is advertised on one or more screens of building 108. Whereas a haptic output signal including characteristics indicating calm and / or smooth haptic feedback may be generated, for example, but not limited to, when a romantic drama movie is advertised on one or more screens of building 108.

[0056] The above examples disclose example situations with one received state information. However, alternatively, more than one state information may be received, and a tactile output signal may be generated via the user interface device 102 based on a combination of two or more state information. According to a non-limiting example, if at least one state information includes the state of the building 108, such as the destination floor number, and the state of the user of the interface device 102, a tactile output signal may be generated, the tactile output signal including features indicating a strong and / or determined number of clicks corresponding to the destination floor number, etc., such as, but not limited to, for an elderly person or a disabled person. A tactile output signal including features indicating softer tactile feedback may be generated for other people. For example, if the destination floor is the fifth floor, the tactile output signal may include five strong and clear clicks for the elderly. The tactile output signal may include five soft and better (i.e., less certain) clicks for other people other than the elderly.

[0057] Figure 3 The control unit 104 according to an embodiment of the present invention is schematically shown. The control unit 104 may include a processing unit 310, a storage unit 320 and a communication interface 330 and other entities. The processing unit 310 may also include one or more processors, which are arranged to implement one or more tasks for implementing at least a portion of the described method steps. For example, the processing unit 310 may be arranged to control the operation of one or more user interface devices 102 and any other entities of the present invention in the described manner. The memory unit 320 may be arranged to store a computer program code 325, which, when executed by the processing unit 310, causes the control unit 104 to operate as described. In addition, as described above, the memory unit 320 may be arranged to store at least one state information and any other data. The communication interface 330 may be arranged to implement one or more communication protocols, for example, under the control of the processing unit 310, so as to enable communication with an external entity as described above. The communication interface may include necessary hardware and software components for implementing, for example, wireless communication and / or communication in a wired manner.

[0058] The above method, control unit 104 and tactile feedback system 100 implement dynamic control of tactile feedback of user interface device 102. Dynamic control means that the tactile feedback of user interface device 102 can be changed or adjusted according to the state based on the user, the state based on the building, the state based on the user interface device and / or the state based on the theme. The dynamic control of the tactile feedback of user interface device 102 implements customized and / or updateable tactile feedback of user interface device 102.

[0059] The specific examples provided in the description given above should not be construed as limiting the applicability and / or interpretation of the appended claims.The lists of examples and groups of examples provided in the description given above are not exhaustive unless expressly stated otherwise.

Claims

1. A method for a tactile feedback system (100) for one or more elevator systems (101), the method comprising: detecting (210) a user indication provided via a user interface device (102) of one of the one or more elevator systems (101), receiving (220) at least one state information, the at least one state information comprising at least one of a user-based state, a building-based state, a user interface device-based state, and a theme-based state, wherein the at least one state information is independent of a user indication detected via the user interface device; and generating (230) a tactile output signal via the user interface device (102) based on the at least one state information, The tactile output signal is dynamically changed or adjusted based on at least one of a user-based state, a building-based state, a user interface device-based state, and a theme-based state.

2. The method according to claim 1, wherein: The generated tactile output signal includes one or more characteristics specific to the state.

3. The method according to claim 2, wherein: The one or more characteristics of the tactile output signal include: amplitude, duration and / or pattern.

4. The method according to claim 1, wherein: The status of the building (108) depends on the type of building (108), the destination floor type, the destination floor number, or the time of day.

5. The method according to claim 4, wherein: The status of the user is detected based on data received from at least one sensor device arranged in the vicinity of the user interface device (102) and / or by using access control.

6. The method according to any one of claims 4 to 5, wherein: The state of the user interface device (102) is detected based on data received from at least one sensor of a touch-based input device of the one or more user interface devices (102), wherein the at least one sensor of the touch-based input device is arranged to detect a force received by the touch-based input device.

7. A control unit (104) for a tactile feedback system of one or more elevator systems (101), the control unit (104) being configured to: detecting a user indication provided via a user interface device (102) of one of the one or more elevator systems (101), receiving at least one state information, the at least one state information comprising at least one of a user-based state, a building-based state, a user interface device-based state, and a theme-based state, wherein the at least one state information is independent of a user indication detected via the user interface device, and generating a tactile output signal via the user interface device (102) based on the at least one state information, The tactile output signal is dynamically changed or adjusted based on at least one of a user-based state, a building-based state, a user interface device-based state, and a theme-based state.

8. The control unit (104) according to claim 7, wherein: The generated tactile output signal includes one or more characteristics specific to the state.

9. The control unit (104) according to claim 8, wherein: The one or more characteristics of the tactile output signal include: amplitude, duration and / or pattern.

10. The control unit (104) according to claim 7, wherein: The status of the building (108) depends on the type of building (108), the destination floor type, the destination floor number, or the time of day.

11. The control unit (104) of claim 7, detecting the status of the user based on data received from at least one sensor device arranged in the vicinity of the user interface device (102) and / or by using access control.

12. The control unit (104) according to any one of claims 7 to 11, wherein: The state of the user interface device (102) is detected based on data received from at least one sensor of a touch-based input device of the one or more user interface devices (102), wherein the at least one sensor of the touch-based input device is arranged to detect a force received by the touch-based input device.

13. A tactile feedback system (100) for one or more elevator systems (101), the tactile feedback system comprising: one or more user interface devices (102) of the one or more elevator systems (101), and A control unit (104) according to any one of claims 7 to 12.

14. The tactile feedback system according to claim 13, wherein: The one or more user interface devices (102) are arranged to at least one of: an elevator car, a surface (106) of a building (108) where the elevator system (101) including the one or more user interface devices (102) is located.

15. A computer program (325) which, when executed by at least one processor, causes a control unit (104) of a tactile feedback system (100) to perform the method according to any one of claims 1 to 6.

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