EP4347467A1

EP4347467A1 - Elevator operating device for an elevator installation with destination call control

Info

Publication number: EP4347467A1
Application number: EP22727127.7A
Authority: EP
Inventors: Florian TRÖSCH
Original assignee: Inventio AG
Current assignee: Inventio AG
Priority date: 2021-05-31
Filing date: 2022-05-04
Publication date: 2024-04-10
Also published as: WO2022253510A1; CN117642355A

Abstract

An elevator installation (1) comprises an elevator control (15), an elevator cab (22) which, upon actuation by the elevator control (15), is displaceable from a first floor (L, F1, F2) to a second floor (L, F1, F2) by means of a drive machine (14), and a number of elevator operating devices (6, 10) which are arranged on floors (F1, F2) of the building (2) and connected to the elevator control (15). One of the elevator operating devices (6) comprises a control device (40, 42) and a visual display unit (24), with the control device (40, 42) receiving data for an optical code (26) and data for a floor indicator (28) from the elevator control (15) in order to control the visual display unit (24) in accordance with the data for the optical code (26). The visual display unit (24) displays the optical code (26) in a display field (30). The control device (40, 42) is moreover configured to control the visual display unit (24) to display a floor indicator (28) in the display field (30), to detect coming into contact with the optical code (26) depicted in the display field (30) by the user (4, 5) and, upon detection of contact, to generate an elevator call to a floor (L, F1, F2) represented by the floor indicator (28).

Description

ELEVATOR OPERATING EQUIPMENT FOR AN ELEVATOR INSTALLATION WITH

DESTINATION CALL CONTROL

description

The technology described here generally relates to an operating device for an elevator system and its operation in a building. Embodiments of the technology relate in particular to an elevator installation in which an elevator controller allocates an elevator call entered at an elevator operating device, and a method for operating such an elevator installation.

In buildings with elevator systems, elevator operating devices are arranged on the individual floors, with which a user can call an elevator. In widespread elevator installations, an elevator operating device arranged on a floor has up/down buttons so that the user can enter the desired direction of travel. In this elevator installation, a car device is present in the elevator car so that the user can enter the desired destination floor in the elevator car. In other known elevator systems, the user can already enter the destination floor on an elevator operating device on the floor. The elevator system is equipped with a destination call control for this purpose. An elevator operating device arranged on a floor has either an electromechanical keyboard, a touch-sensitive screen, an RFID card reader known from EP 0699 617 B1, or a (Bluetooth) radio module known from EP 2238 067 A1 for entering the destination floor. To operate an elevator, it is known from EP 3 536647 A1 to arrange a matrix code (quick response, QR code) on a floor on or near an elevator. To enter a call, a user can scan the QR code with a mobile phone/smartphone.

The options mentioned for entering a call each have advantages and disadvantages, for example a user has to touch the electromechanical keyboard or the touch-sensitive screen, which may not be desirable, particularly in times of a pandemic. The call input by means of an RFID card reader or mobile phone requires that the users handle an RFID card or a mobile phone, which may be time-consuming and therefore also undesirable can be. There is therefore a need for a technology for call input in an elevator system that improves the ease of use for a broader group of users who have different interests without increasing the technical complexity of the elevator system.

One aspect relates to an elevator system that has an elevator controller, an elevator car that can be moved from a first floor to a second floor when activated by the elevator controller by means of a drive machine, and a number of elevator operating devices that are arranged on floors of the building and are connected to the elevator controller are. One of the elevator operating devices has a control device and a screen device, with the control device being designed to receive data for an optical code and data for a floor indicator from the elevator control, with the data for the optical code and the data for the floor indicator being in the elevator control as to are stored belonging to the same floor. The control device is also designed to control the screen device according to the data for the optical code, with the screen device displaying the optical code in a first display field, and to control the screen device according to the data for the floor indicator, to display the floor indicator in the first display field, with the floor indicator and the visual code are perceivable by the user. The control device is also designed to detect when the user touches the optical code shown in the first display field and, when touch is detected, to generate an elevator call to a floor shown by the floor indicator.

Another aspect relates to a method for operating an elevator installation which has an elevator control, an elevator car which can be moved from a first floor to a second floor when activated by the elevator control by means of a drive machine, and a number of elevator operating devices arranged on floors of a building . The elevator operating devices are connected to the elevator control, with at least one of the elevator operating devices having a control device and a display device. According to the method, the screen device is controlled to display an optical code and a floor indicator in a first display field, the control being based on data received from the elevator control for the optical Code and data received from the elevator controller for the floor indicator. An electrical detection signal is generated by the screen device when the user touches the optical code shown in the first display field. If an electrical detection signal is present, an elevator call is generated, which is transmitted to the elevator controller, the elevator call indicating a floor represented by the floor indicator.

The technology described here creates an elevator control device that allows an elevator call to be entered manually on an elevator control device or with the aid of a communication device (eg a smartphone). The elevator operating device displays a display panel and an optical code therein, which can be detected and processed by the communication device. In addition to the optical code, the screen device displays a floor indicator in the display field, which shows the user in a visible or legible manner which function and/or information is assigned to the display field or the optical code. The floor indicator shows the user in particular the floor that is assigned to the display field and can be entered by the user as the destination floor. The elevator operating device is designed to recognize a touch on the display field or the optical code shown therein as an input of an elevator call. A user who has a mobile communication device with him can, for example, choose how the user would like to enter the elevator call. The choice can e.g. B. depend on whether touching a surface of the elevator control device from z. B. hygienic reasons should be avoided or whether the communication device is available (z. B. at hand and / or ready for use). If the call input is to be as simple and quick as possible, touching the elevator operating device with a finger may be quicker than handling the communication device, which may first have to be unlocked.

In one embodiment, the elevator operator can display multiple panels. The control device of the elevator operating device is designed to activate the screen device to display at least one second display field. The first display panel and the at least second display panel can be perceived by the user spatially separated from one another. As a result, the elevator operating device can be flexibly adapted to the building-specific requirements of the elevator system. Because of the option mentioned, the type of call input (manually or with the help of the communication device), a call confirmation or allocation information can be sent flexibly to the elevator operating device or to the communication device. In one exemplary embodiment, the control device is designed to activate the screen device to display an identifier for an elevator assigned to the elevator call in the first display field or in a further display field that is shown. If the identifier is displayed in the first display field, it can be displayed instead of the optical code; the identifier is displayed for a specified period of time.

In addition to flexibility, the technology described here also offers security against misuse. In one exemplary embodiment, the elevator control is designed to generate data for a new optical code at regular or random time intervals and to send it to the elevator operating devices. The control device controls the screen device according to the data for the new optical code, so that the new optical code is displayed in the first display field.

Various aspects of the improved technology are explained in more detail below using exemplary embodiments in conjunction with the figures. In the figures, the same elements have the same reference numbers. Show it:

Fig. 1 is a schematic representation of an exemplary situation in a

Building with several floors and an exemplary elevator system;

Fig. 2A-2D is a schematic representation of an operation of a

Elevator operating device with an exemplary call input;

3 shows a schematic block diagram of an exemplary embodiment of an elevator operating device;

4 shows an exemplary illustration of an embodiment of a method for operating an elevator operating device; and

5 shows an exemplary illustration of an exemplary embodiment of a method for operating an elevator installation with an elevator operating device which can be operated according to FIGS. 2A-2D. 1 is a schematic representation of an exemplary situation in a building 2 that has several floors F1, F2, L, which are served by an exemplary elevator system 1. For reasons of representation, only selected components and subsystems of the elevator system 1 are shown in Fig. 1: an elevator control 15, which is equipped with a destination call control, a drive machine 14, a suspension element 16 (e.g. steel cables or flat belts), a suspension element on the suspension element 16 hanging and in a shaft 18 movable elevator car 22 (hereinafter also referred to as car 22) and devices (6, 10) for entering elevator calls. Those skilled in the art recognize that the elevator installation 1 can also include a plurality of cars 22 in one or more shafts 18, which can be controlled by a group control. Instead of a traction elevator shown in FIG. 1, the elevator installation 1 can also have one or more hydraulic elevators.

In the exemplary embodiment shown in FIG. 1, the elevator controller 15 comprises two subsystems, a call allocation system 8 and a control system 12. The call allocation system 8 comprises a computer which allocates an elevator call to an elevator car 22 in accordance with an allocation algorithm for servicing the elevator call. In one embodiment, the elevator call is a destination call, i. H. with the elevator call, the user 4, 5 communicates a desired destination floor to the elevator controller 15; information about the boarding floor and the destination floor is therefore available in the elevator control 15 before the user 4 , 5 enters an elevator car 22 . The call assignment can be done by the computer alone or in cooperation with the devices (6, 10) for entering elevator calls of the elevator system 1. Such allocation algorithms are known to those skilled in the art; an allocation algorithm in cooperation with call input devices is described, for example, in: Koehler, Jana, et al., An AI-Based Approach to Destination Control in Elevators, AI Magazine, Vol. 23, No. 3, 2002, pp. 59-78.

The call allocation system 8 also includes a facility to send and receive signals over a communication network 20 . Since the call presentation system 8 provides a connection between components connected to the communications network 20 and the computer of the call presentation system 8, the call presentation system can also be referred to as a destination call gateway (Destination Call Gateway, DCG). The control system 12 controls the drive machine 14, among other things, in such a way that that the assigned car 22 is moved from a boarding floor to a destination floor. Those skilled in the art will recognize that the elevator controller 15 may include other subsystems and components configured for various functions and tasks.

In the exemplary embodiment shown, at least one device (6, 10) is arranged on each floor F, F1, F2, by means of which users 4, 5 can enter elevator calls. In the following, the devices 6 on floors F1, F2 are referred to as "elevator operating devices 6", and the device 10 on floor L is referred to as "floor call device 10". The arrangement of the devices (6, 10) is not limited to the arrangement shown in FIG. In addition, more than one of the devices (6, 10) can be arranged on a floor L, F1, F2.

In one exemplary embodiment, the elevator operating devices 6 can be arranged on all floors L, F1, F2.

Each of the elevator operating devices 6 has a screen device 24 on which at least one display field 30 can be displayed or perceived by the user 4, 5. In one exemplary embodiment, the screen device 24 is designed to detect whether and where the user 4, 5 is touching a user-side surface of the screen device 24. Such a screen device 24 can also be referred to as a touch-sensitive screen device 24 or as a touch-sensitive screen (touch screen). The functionality and structure of a touchscreen are generally known to those skilled in the art.

In the situation shown in FIG. 1, the screen device 24 of the elevator control device 6 on floor F1 shows a single display panel 30, and the screen device 24 of the elevator control device 6 on floor F2 shows two display panels 30, for example. These display panels 30 each show an optical code 26 and a floor indicator 28 . The optical code 26 and the floor indicator 28 form a pair, with the floor indicator 28 showing the user 4, 5 in a visible or legible manner which function and/or information is assigned to the display field 30 or the optical code 26. In Fig. 1 is the function e.g. B. a call input for a travel request from the boarding floor Fl, F2 to the floor L or from the boarding floor F2 to the floor Fl.

The optical code 26 can be configured in a variety of ways as long as it can be machine read and processed with an optical reader. In the exemplary embodiments described here, the optical reading device is a camera that is present in a communication device 9 (eg mobile radio device/mobile phone, smartphone, tablet PC). The optical code 26 can include, for example, an alphanumeric character string and/or a representation of bars or dots of different widths and gaps between them with the highest possible contrast. Said representation may not be a one-dimensional barcode (barcode) or a two-dimensional (2D) code. Examples of 2D codes are 2D barcodes (e.g. a Codablock or a Code 49) and matrix codes (e.g. a Quick Response (QR) code, a DataMatrix code, a JAB color code). Such codes and their generation are known to the person skilled in the art, so that further explanations do not appear necessary at this point.

In FIGS. 1 and 2A - 2D, for example, a QR code is displayed as the visual code 26 in the display panel 30 and the character "L" for the floor L is displayed as the floor indicator 28 . In an exemplary embodiment, the elevator operating devices 6 on floors F1, F2 can display different floor indicators 28, as is shown in FIG. 1 on floor F2.

Those skilled in the art will recognize that the floor indicator 28 is not limited to one character (e.g. "L"), but can be designed in a variety of ways as long as a user 4, 5 can read the floor indicator 28 and give meaning to it . The floor indicator 28 may therefore include a number, one or more letters (text), an alphanumeric string, a symbol, an icon, or a combination of these options. Those skilled in the art will also recognize that in another embodiment, the display device 24 may display multiple display panels 30 with or without a visual code 26 . If several optical codes 26 are displayed, they are to be arranged on the screen 24 (for example at a sufficient distance) so that they can each be read individually by a camera. The functions of the optical code 26 and the floor indicator 28 are explained elsewhere in this specification. The floor L can be an entrance hall of the building 2, into which the users 4, 5 enter the building 2 and from which the users 4, 5 leave the building 2 again. If a user 4, 5 enters the floor L, each floor F1, F2 of the building 2 can be reached with the elevator system 1 from there—with appropriate access authorization. An elevator operating device 6, a landing call device 10 or a combination of these devices (6, 10) can be arranged on the floor L. Only the floor call device 10 is arranged on floor L in FIG.

The floor call device 10 is shown in Fig. 1 as an example with a keyboard 10a and a display device 10b to indicate that a user 4, 5 on floor L can use the keyboard 10a to enter an elevator call (destination call) to any destination floor and that the Users 4, 5 can be informed of the car 22 serving the elevator call by means of the display device 10b. As an alternative to the keyboard 10a, a touch-sensitive screen (touchscreen), an RFID reader, a reader or display device for an optical code (e.g. barcode, QR code or color code) or a radio module, which is connected to a portable communication device 9 of a user 5 communicates, are used to enable call entry. The person skilled in the art recognizes that the car 22 serving the elevator call is also communicated to the user 4, 5 with these alternatives.

Two categories of users 4, 5 are shown in FIG. 1 to illustrate and describe exemplary embodiments. According to a first category, the users 5 can be, for example, people who live or work in the building 2; these users 5 can each carry a mobile electronic communication device 9 (e.g. a mobile radio device) which is designed, among other things, to operate the elevator system 1, as is described in more detail elsewhere in this description. The users 5 are shown on floors F 1 and L by way of example. According to a second category, the users 4 can be, for example, visitors who are not in the building 2 on a regular basis and do not necessarily have a communication device 9 with them that is designed to operate the elevator system. A user 4 can also be a person who lives in the building 2 but does not have their communication device 9 with them or cannot or does not want to use it. 1 shows the users 4 without a communication device 9 . The users 4 are, for example, on the floors Fl, F2 drawn.

In the situation shown in FIG. 1, the technology described here can be used to advantage. Summarized briefly and by way of example, a user 4, 5 can place an elevator call on an elevator operating device 6 according to the technology described here by touching the display panel 30, in particular by touching an optical code 26 displayed therein, or by reading in the displayed optical code 26 using a communication device 9 enter. The screen device 24 is controlled in such a way that the floor indicator 28 is displayed in the display field 30 in addition to the optical code 26 and that touching the display field 30 (whereby the displayed optical code 26 can also be touched) is recognized as an input of an elevator call. The floor indicator 28 shows the user 4 , 5 the destination floor assigned to the display panel 30 . The user 4, 5 can thus choose how the user 4, 5 would like to enter the elevator call. The choice can e.g. B. depend on whether touching the screen 24 from z. B. should be avoided for reasons of hygiene, whether a communication device 9 is available (at hand and / or ready for use) or whether the call should be entered as quickly as possible; tapping the display panel 30 with a finger can sometimes be quicker than handling the communication device 9, which may first have to be unlocked.

An exemplary mode of operation of the elevator operating device 6 when a call is input is shown in FIGS. 2A-2D. The elevator operating device 6 is designed in such a way that its screen device 24 displays a further (second) field 32 in addition to the (first) display field 30 . This panel 32 can be configured, corresponding to the display panel 30, as a display panel that allows input and display, or as a display panel that only allows display. Here, too, the person skilled in the art recognizes that the screen device 24 can display additional fields. As explained above, the user 4, 5 can touch the display field 30 shown in FIG. 2A or read the displayed optical code 26 with a communication device 9. The display field 30 also shows the destination floor (L) (floor indicator 28) assigned to the optical code 26. In FIG. 2B it is indicated that the user 4, 5 touches the optical code 26 with a finger in order to enter an elevator call for a travel request from the boarding floor to the destination floor (L). The call allocation system 8 allocates an elevator to the elevator call, and the allocated elevator is communicated to the user 4,5. In Fig. 2C occurs the notification by displaying the allocated elevator (e.g. elevator A) in field 32. The person skilled in the art recognizes that the elevator operating device 6 can additionally generate an acoustic message. In an exemplary embodiment according to FIG. 2D, the screen device 24 can be controlled in such a way that the assigned elevator is displayed in the display field 32 for a specified period of time (e.g. 1-2 seconds) instead of the optical code 26.

As an alternative to the touch shown in FIG. 2B , the user 5 can read in the optical code 26 with the communication device 9 . The person skilled in the art recognizes that the communication device 9 can also be used on floor L for reading in an optical code if the floor call device 10 there displays an optical code. Those skilled in the art will also recognize that the visual code 26 displayed on each floor L, Fl, F2 is floor specific, i. H. the elevator control 15 stores which optical code 26 is displayed on which floor and on which floor call device 6, 10. As a result, the control device 8, 12 can recognize on which floor L, Fl, F2 the call is entered. The optical code 26 can be constant over time or variable (dynamic). A dynamic optical code can be changed at regular or random intervals. This ensures (and prevents misuse) that the user 5 is located directly at the respective call input device 6, 10 when the call is input.

If the communication device 9 is a smartphone, for example, application-specific software (also known as an “app”) can be installed on it, which reads in the optical code 26 and processes it further. The communication device 9 communicates via a building-internal communication network and/or a mobile radio network with the elevator controller 15, which receives the destination call, including associated information about the boarding floor and destination floor, and initiates the allocation of an elevator. The person skilled in the art recognizes that the assigned elevator is communicated to the user 5 in this case as well; the allocated elevator can be displayed, for example, on the screen of the communication device 9 and/or transmitted as a voice message. An example of an app suitable for this application is the Schindler Group's myPORT app.

Depending on the configuration of the elevator installation 1 and/or the app, on a screen of the communication device 9 a user interface is displayed, which allows the operation of the elevator installation 1 using the communication device 9 . If the user 5 uses the communication device 9 to read in the optical code 26, in one exemplary embodiment the app can automatically generate a destination call to the destination floor indicated by the floor indicator 28. In another embodiment, the app can suggest the destination floor indicated by the floor indicator 28 on the user interface as the destination floor and offer the user 5 the opportunity to confirm the suggested destination floor or to select another destination floor within a specified period of time; If no selection is made within this period of time, the call input can be aborted or a destination call to the proposed destination floor can be generated automatically.

The floor indicators 28 ("L", "Fl") shown in FIG. 1 can be permanently assigned to the elevator operating devices 6; i.e. H. for a fixed longer period of time they display these floor indicators 28 unchanged. Such a fixed assignment can take place, for example, in connection with the installation of the elevator system 1 in the building 2 . In one embodiment, the fixed assignment can be changed, for example if the requirements and/or the use of the building 2 changes. In one exemplary embodiment, a floor indicator 28 can be assigned dynamically to an elevator operating device 6, for example depending on the current situation in the building 2 in general or only on one or individual floors F1, F2. If, for example, an event ends on one floor, the elevator operating device 6 there can display the entrance hall (floor L) as a floor indicator 28 during this period; outside of this period, another floor can be displayed as a floor indicator 28, for example a floor on which a restaurant is located . For example, in an office building, the floor indicator 28 may indicate a restaurant floor at lunchtime and the lobby at times when the users 4, 5, leave the building 2. The person skilled in the art recognizes that the elevator control 15 controls the individual elevator operating devices 6 accordingly and stores the current assignment of the floor indicators 28 .

The elevator operating devices 6 and the floor call device 10 are coupled to the elevator control 15 via a line network 20 . The line network 20 is designed, for example, for an Ethemet connection to the elevator control 15 . The communication between the elevator control 15 and the mentioned devices 6,

10 takes place according to a protocol for wired communication, for example the Ethernet protocol.

FIG. 3 shows a schematic block diagram of an exemplary embodiment of an elevator operating device 6 which is connected to the elevator control 15 via the line network 20 . It is indicated in FIG. 3 that further elevator operating devices 6 are connected to the line network 20 . In a housing 36 of

Elevator operating device 6, the screen device 24, a control device 40, 42 and a communication device 38 (COM) are arranged. In the exemplary embodiment shown, the screen device 24 comprises an illumination device 50 and a display and input device 54. Depending on the configuration of the elevator operating device 6, it can comprise an electroacoustic converter 52 (e.g. a loudspeaker), which is connected to the control device 40, 42; as an optional component, the electroacoustic converter 52 is shown in dashed lines. The electroacoustic converter 52 can be used, for example, to output a voice message or an audible signal tone, for example to acoustically confirm an elevator call to the user 4, 5 or to announce the assigned elevator.

In the exemplary embodiment shown, the control device 40, 42 comprises a central processing unit (CPU) and a processor 42, which are shown as separate components by way of example. The processor 42 is connected to the central processing unit 40 and the display and input device 54 . The processor 42 detects, for example, a signal that is generated by the display and input device 54 when the user 4, 5 touches the surface of the screen device 24. The person skilled in the art recognizes that the central processing unit 40 and the processor 42, or their functions, can be combined in a control device (40, 42); accordingly, the function of the processor 42 can be performed by the central processing unit 40, and the illustration of the processor 42 can be omitted in FIG. Controlled by the central processing unit 40, the display and input device 54 of the screen device 24 displays the optical code 26 in the display panel 30 (the floor indicator 28 is not shown in FIG. 3). The lighting device 50 serves to illuminate the user interface of the elevator operating device 6, or only areas of the user interface, e.g. B. the fields 30, 32 to illuminate. Controlled by the central processing unit 40, the lighting device 50 can illuminate the display and input device 54 or its user interface with white light so that the information displayed can be perceived by a user 4, 5, particularly in poor lighting conditions. The lighting device 50 can also illuminate the fields 30, 32 with colored light in order to confirm to the user 4, 5 that an elevator call has been entered. In one embodiment, the lighting device 48 includes one or more LED light sources.

With the understanding of the basic system components of the elevator system 1 described above and their functionalities, descriptions of exemplary methods are provided below with reference to FIGS. 4 and 5 . Each of the methods is illustrated by means of an example flow chart and the steps carried out therein. Those skilled in the art will recognize that the division into these steps is exemplary and that one or more of the steps may be broken down into one or more sub-steps or that several of the steps may be combined into one step. The description is made with reference to the users 4, 5, who are on floor F1, for example, and from there (i.e. the boarding floor) call an elevator for a journey to a destination floor. Each elevator operating device 6 is activated and in communication with the elevator control 15.

A method for operating the elevator operating device 6 shown in FIG. 1 is shown in FIG. The method begins in a step S1 and ends in a step S6.

In a step S2, a display field 30 is generated, in which an optical code 26 and a floor indicator 28 are to be displayed. Since the elevator operating device 6 communicates with the elevator control 15 via the communication device 38 , the elevator operating device 6 receives information or data on the optical code from the elevator control 15 , on the basis of which the optical code 26 is generated and displayed by the screen device 24 . The optical code 26 is floor specific. In one embodiment, the elevator operating device 6 also receives information or data on the floor indicator 28. In a step S3, the method waits for the optical code 26 or the display field 30 displaying it to be touched by the user 4, 5. If there is no touch, the method remains in a standby mode, which is indicated by a loop along the no branch back to step S2. If, on the other hand, there is a touch, the method proceeds along the yes branch to step S4.

An elevator call is transmitted to the elevator controller 15 in step S4. The elevator call includes information about the boarding floor (Fl) and the destination floor. The destination floor is the destination floor indicated by the floor indicator 28 . The elevator operating device 6 transmits this information via the line network 20 to the elevator controller 15 which then executes an allocation algorithm which allocates the elevator call to an elevator car 22 . Allocation algorithms used are known to those skilled in the art.

In a step S5, the elevator car 22 assigned to the elevator call is displayed by the screen device 24. For this purpose, the elevator controller 15 can, for example, send the allocation information relating to the elevator car 22 to the control device 40, 42. The control device 40, 42 controls the display device 24 accordingly in order to display an elevator indicator (e.g. "A" in FIGS. 2C and 2D) based on the allocation information. The elevator indicator is displayed for a predetermined period of time, for example for a few seconds (e.g. 1-2 seconds).

In one exemplary embodiment, the elevator indicator is displayed from the user's 4, 5 point of view almost simultaneously with the confirmation that the elevator call has been registered. This is possible because the calls are allocated very quickly by known allocation algorithms, for example within milliseconds. In one exemplary embodiment, an elevator call is confirmed visually by the screen device 24. Alternatively or additionally, the confirmation can also be acoustically, for example by means of the electroacoustic converter 52. The elevator operating device 6 then displays the optical code 26 again.

The operation of the elevator control device for this elevator call ends according to in Step S6 shown in Fig. 4. The person skilled in the art recognizes that after the call allocation, the elevator control 15 moves the elevator car 22 in accordance with the elevator call 1 in order to transport the user 4, 5 to the desired destination floor.

A description of an exemplary method for operating the elevator system 1 shown in FIG. 1 with the elevator operating devices 6 shown there follows with reference to FIG. 5. The method begins in a step A1 and ends in a step A9.

In a step A2, display information is generated. The display information is generated by the elevator control 15 and includes data to be encoded in the optical code 26 that an elevator operating device has to display 6 floors specifically. This data can e.g. B. include an address (z. B. URL) of the elevator system 1, so that the app in the communication device 9 can communicate with the elevator system 1. The display information also includes data indicating the floor indicator 28 that the elevator operator 6 is also to display; floor indicator 28 may also be floor specific in one embodiment. In addition, the display information includes an identifier (number) of the display information. This display information is stored in a storage device of the elevator control 15; it is therefore stored there which display information identifiable by the identifier is sent to a specific elevator operating device 6 and at what point in time.

In a step A3 the display information is sent from the elevator controller 15 to the elevator operating device 6 . Based on this display information, the elevator operating device 6 displays the optical code 26 and the floor indicator 28 . Exemplary representations of the optical code 26 and the floor indicator 28 are shown in Figures 1 and 2A.

In a step A4, an elevator call is received. If the elevator controller 15 receives the elevator call, it is also recognized via which communication channel the elevator call was received. If the user 4, 5 enters the elevator call on the elevator operating device 6 by touching the display panel 30, the communication channel includes the line network 20. However, if the user 5 uses the communication device 9, the Communication channel an app and/or a radio interface.

In a step A5, the received elevator call is assigned to an elevator car 22 and assignment information is generated. As stated above, an allocation algorithm is used for call allocation.

In a step A6 it is determined whether the allocation information is to be transmitted to the elevator operating device 6 or to the communication device 9 . In the exemplary embodiment shown, it is checked in step A6 whether the elevator call was made by touching the surface of the screen device 24 and the elevator call was therefore transmitted via the line network 20 from the relevant elevator operating device 6 . If this is the case, the method proceeds along the yes branch to a step A7, in which the allocation information is transmitted via the line network 20 to the elevator operating device 6 (cf. step S5 in FIG. 4).

On the other hand, if the user 5 uses the communication device 9 to read in the optical code 26, the elevator call is received via the app interface. In step A6, the check therefore shows that the elevator call was not generated by touching an elevator operating device 6, and the method proceeds along the no branch to a step A8, in which allocation information via the app

Interface to the communication device 9 of the user 5 is transmitted. The method ends in step A9.

Claims

patent claims

1. Elevator system (1) in which a destination floor desired by a user (4, 5) on a floor (L, Fl, F2) of a building (2) can be entered, the elevator system (1) having an elevator controller (15), an elevator car (22) which can be moved from a first floor (L, Fl, F2) to a second floor (L, Fl, F2) when activated by the elevator control (15) by means of a drive machine (14), and a number of elevator operating devices (6, 10) arranged on floors (F1, F2) of the building (2) and connected to the elevator control (15), one of the elevator operating devices (6) having a control device (40, 42) and a screen device (24), characterized in that the control device (40, 42) is designed

receiving data for an optical code (26) and data for a floor indicator (28) from the elevator controller (15), the data for the optical code (26) and the data for the floor indicator (28) being stored in the elevator controller (15) are stored as belonging to the same floor (L, Fl, F2), to control the screen device (24) according to the data for the optical code (26), the screen device (24) displaying the optical code (26) in a first display field (30 ) represents, controlling the screen device (24) according to the data for the floor indicator, displaying the floor indicator (28) in the first display field (30), the floor indicator (28) and the optical code (26) being activated by the user (4, 5) are perceptible, to detect a touch by the user (4, 5) of the optical code (26) shown in the first display field (30) and, if a touch is detected, to call an elevator to a floor (L, Fl, F2) to generate.

2. Elevator installation (1) according to Claim 1, in which the control device (40, 42) is designed to control the screen device (24) to display at least one second display field (30, 32), the first display field (30) and the at least the second display panel (32) can be perceived by the user (4, 5) spatially separated from one another.

3. Elevator system (1) according to one of the preceding claims, in which the control device (40, 42) is designed to control the screen device (24), in the first display field (30), in particular instead of the optical code (26), or another one shown display field (32) to display an identifier (A) of an elevator assigned to the elevator call.

4. Elevator system (1) according to one of the preceding claims, in which the elevator control (15) is designed to generate data for a new optical code (26) at regular or random time intervals and to send it to the elevator operating devices (6), the control device (40, 42) is designed to control the screen device (24) according to the data for the new optical code (26), the screen device (24) displaying the new optical code (26) in the first display field (30).

5. Elevator installation (1) according to one of the preceding claims, in which the screen device (24) is designed as a touch-sensitive screen device.

6. A method for operating an elevator system (1) according to any one of claims 1- 5, wherein the elevator system (1) has an elevator control (15), an elevator car (22) which, when controlled by the elevator control (15), by means of a drive machine ( 14) can be moved from a first floor (L, Fl, F2) to a second floor (L, Fl, F2), and a number of elevator operating devices (6, 10) arranged on floors (Fl, F2) of a building (2) , which are connected to the elevator control (15), wherein one of the elevator operating devices (6) has a control device (40, 42) and a display device (24), the method comprising:

Control of the screen device (24) to display an optical code (26) and a floor indicator (28) in a first display field (30), the control being carried out according to data received from the elevator control (15) for the optical code (26) and from the elevator control (15) received data for the floor indicator (28);

Generation of an electrical detection signal by the screen device (24) when the user (4, 5) touches the optical code (26) shown in the first display field (30); and in the presence of the electrical detection signal, generating an elevator call and transmitting the elevator call to the elevator controller (15), the elevator call indicating a floor (L, Fl, F2) represented by the floor indicator (28).

7. The method according to claim 6, also comprising actuating the screen device (24) to display at least one second display field (30, 32), the first display field (30) and the at least second display field (32) being spatially separated from one another by the user (4 , 5) are perceptible.

8. The method according to claim 6 or 7, further comprising actuating the screen device (24) to display an identifier (A) of an elevator assigned to the elevator call in the first display field (30) or in a further display field (32).

9. The method according to any one of claims 6-8, in which the elevator call is a destination call to which a boarding floor and a destination floor are assigned.