EP3356271A1

EP3356271A1 - Method and device for generating control data for controlling an elevator system by monitoring a thermal image of an operating surface

Info

Publication number: EP3356271A1
Application number: EP16763041.7A
Authority: EP
Inventors: Reto Tschuppert; Martin KUSSEROW
Original assignee: Inventio AG
Current assignee: Inventio AG
Priority date: 2015-09-30
Filing date: 2016-09-09
Publication date: 2018-08-08
Also published as: HK1250027A1; CN108137267A; KR20180063096A; WO2017055054A1; AU2016332504A1; AU2016332504B2; US20180282116A1; CN108137267B

Abstract

A method is proposed for generating control data for controlling an elevator system (1), which comprises the following steps: projecting or displaying an image of an operating panel (27) such that same can be visually perceived by a user (15) on an operating surface (29); identifying a region of the control surface (29) touched by the user (15) within the image of the operating panel (28), by optically monitoring the operating surface (29), then identifying whether a small-area region (31) arises within the image of the control panel (27) with a temperature deviating from the surrounding large-area regions (37) and with a temperature equalising with the temperature of the surrounding regions (37) over time; generating the control data according to a position of the region of the operating surface (29) touched by the user (15) relative to the image of the operating panel (27); transmitting the generated control data to a controller (11) of the elevator system (1). The method can be carried out, for instance, by means of a portable device (16) to be carried by the user (15), such as smart glasses (17) or a smartphone which are equipped with a projector (19) and a thermal imaging camera (21), such that conventional operating panels no longer need to be provided in the elevator system (1).

Description

Method and apparatus for generating stub data for stemming an annotation input..

The present invention relates to a method and a device for generating control data for controlling an elevator installation. Furthermore, the invention relates to a method and a control device for controlling an elevator installation as well as a elevator installation provided therewith, a computer program product which can be used for this purpose and a computer-readable medium storing such a computer program product. Moreover, the invention relates to a use of a portable device for carrying out such a method.

Elevators are used, among other things, to carry passengers between different floors within a building. In general, a passenger must be able to inform a control system of the elevator installation via a human-machine interface (HMI - Human Machine Interface) about where the control unit should drive an elevator car. For this purpose, a cabin operating panel (COP ^■ - Car Operating Panel) is conventionally provided in the interior of the elevator car, with the aid of which a passenger who has entered the elevator car can indicate to which floor he would like to be brought. Furthermore, on the floors in the access area to the elevator installation, Landing Operating Panels (LOPs) are provided, by means of which a passenger can indicate, for example, that an elevator car is to be driven to the floor in which he is presently located.

Conventionally, both the cabin control panel as well as the

Landestelienbedienpanels usually designed as separate to be provided facilities in which the passenger can convey his requirements of the control of the elevator system, for example, by manually pressing control surfaces. The control surfaces are conventionally often designed in the form of buttons, which can be actuated, for example, mechanically or capacitively.

The provision of control panels for an elevator system usually entails, among other things, that a hardware required for this purpose has to be manufactured and installed in the elevator installation. This is generally associated with significant manufacturing and installation costs. In addition, a hardware necessary for this one

KU: KU Risk of default, for example due to wear, subject, so in this

Related significant maintenance costs may arise.

There may therefore be a need for a method and a device for generating control data for controlling an elevator installation, with the aid of which a cost, installation effort and / or maintenance expenditure incurred in this context can be reduced. Furthermore, there may be a need for a method and a control device for controlling an elevator installation as well as an elevator installation equipped with such a control device, which are designed to use correspondingly generated control data. In addition, there may be a need for a computer program product which, when executed by a processor, instructs it to perform a corresponding method and to a computer-readable medium on which such a computer program product is stored. Finally, there may be a need to use a portable device carried by a passenger to perform a corresponding procedure.

Such a respective need can be met by the subject matter of any one of the independent claims. Advantageous embodiments are explained in the dependent claims and in the following description.

According to a first aspect of the present invention, a method for the

Generating control data for controlling an elevator installation is described, which has at least the following method steps: It is an image of a

Operating panel projected so that it is visually perceptible to a user on a control surface. It is then detected whether an area of the control surface within the image of the control panel has been touched by a user. Such detection takes place by optically monitoring the operating surface to determine whether within the image of the control panel there is a small-area area with a temperature deviating from surrounding large-area areas and with a temperature equal to the temperature of the surrounding areas over time. Thereupon become

Generates control data depending on a position of the touched by the user area of the control surface relative to the image of the control panel. The control data generated in this way are then transmitted to a control of the elevator installation. Possible features and advantages of embodiments of the invention may, inter alia, be regarded as being based on ideas and findings described below.

As stated in the introduction, control data for controlling an elevator installation has hitherto mostly been generated using control panels specially reserved for this purpose. In order to be able to reduce a production, installation and / or maintenance expense incurred for this purpose, it is roughly suggested to implement a type of virtual operating panel in which an image of an operating panel is visibly projected for a user, but no specific structural or operational control is required ., equipment to be provided necessarily measures are to be provided in the elevator system. The image of the control panel is to be projected in such a way that the user can visually perceive the virtual control panel on a control surface, that is, can see. The virtual control panel can be part of an augmented reality for the user

In principle, the operating surface can be any surface, for example a surface within the elevator car or a surface in a building floor, for example next to an elevator door play a landing control panel (LOP).

In order to be able to input his request or request to the elevator installation, a user or passenger can briefly touch a corresponding area of the operating area within the image of the control panel. Different areas of the

Control surface can be so marked by the image projected thereon of the control panel so that the user can perceive them as actuating surfaces, similar to buttons and buttons conventional COPs or LOPs. A user can thus touch one of these in relation to the entire image of the control panel small areas on the control surface and thus "operate" similar to conventional control panels.

To recognize that the user has a small area of the image of the

Touched control panel on the control panel, the control surface is monitored, for example, using a kind of thermal imaging camera. In such an optical monitoring is checked continuously or at short intervals, whether within the image of the control panel on the control surface, a small area area occurs, which has a different temperature compared to a surrounding larger area. The deviating temperature may be higher or lower than that of the surrounding large areas. The locally deviating temperature of the small-area region can here serve as an indication that a user has previously briefly touched the small-area area with his hand or one of his fingers and has locally heated or cooled it. The small-area region may, for example, correspond to a surface of a fingertip or parts of a hand, that is to say, for example, have an area of between 0.5 and 20 cm ² , preferably between 1 and 5 cm ² .

As a further indication to judge whether within the projected image of the

If a small area of a small area is "actuated" by a local touch, it is monitored whether a temperature within the small area that deviates from the surrounding large areas will increase with time to the temperature of the surrounding areas Area previously briefly touched by the user while in his

Temperature was changed, but this temperature change decays over time and is therefore limited in time. In this way, it can be recognized that the locally differing temperature of the small-area area is actually due to a touch by the user and does not arise, for example due to other, temporally permanent effects.

Once a user-touched area of the control surface has been detected, its position relative to the image of the control panel can be determined. In other words, it can be recognized where the user has tried to "operate" the virtually projected operating panel, from which it can be deduced, for example, to which floor the user would like to be transported by the elevator or which other function of the elevator the user would like to activate. Based on the knowledge of the position of the touched by the user area of the operating surface relative to the image of the loading lienpanels thus control data for controlling the elevator system can be suitably generated. Finally, these generated control data are transmitted to a control of the elevator installation, so that the controller can suitably control, for example, a drive of the elevator installation in order to move the elevator cabin to a desired floor.

According to one embodiment, in the method proposed here, the projecting of the image of the control panel and the recognition of the area of the control surface touched by the user can take place by means of a portable device to be carried by the user. Such a portable device may include, for example, an intelligent mobile phone ("smartphone"), a smart watch, smart glasses, sometimes referred to as a head-mounted display (HMD), such as. e.g., "Smart Glasses," "Google Glasses," or a smart garment.

Such portable smart devices to be carried by a user today may be provided with various small components that may allow images to be projected, optically monitor areas of an environment, and / or analyze, process and eventually transfer related data or signals to other devices to transfer.

For example, portable smart devices may be equipped with a miniaturized projector that can be used to project images so as to be visually perceptible to a user on a control surface, as well as smart portable devices such as optical sensors a location and / or time-resolution camera, with the help of which they can visually monitor surrounding areas.

Cameras similar to a thermal imaging camera to be configured to detect thermal radiation in the form of infrared radiation (IR). In particular, the sensors or cameras can be designed to provide spatially resolved images of the surroundings in order to be able to detect, for example, a small area with a temperature deviating from surrounding large areas. In addition, the sensors or cameras can be designed to monitor an environment in a time-resolved manner, in order, for example, to be able to recognize that the said small-area Range with its initially different temperature over time to the temperature of the surrounding areas equalizes.

The portable intelligent device may further comprise a central processing unit (CPU) and memory which enable it, for example, to create image data of an image to be projected and / or to analyze and process image data supplied by sensors or a camera.

Further, portable smart devices may be configured to communicate data wirelessly or to other devices. Thus, for example, control data, which were previously generated by analysis of image data supplied by the sensors or camera, can be transmitted to a control of the elevator installation.

A concept behind the idea of performing the procedure to be carried out projecting the image of the control panel as well as to be provided according to the procedure recognizing the touched by the user area of the control surface by means of a user mitzu leading portable intelligent device, can be seen in that way possible can be dispensed with fixed to be installed in an elevator equipment to generate control data for controlling the Autzuganlage. Instead, for example, in a lift cabin a COP and in the

To provide floors of a building each LOPs firmly installed and this considerable effort for the production of these devices and their installation and in particular cabling and maintenance must operate, it is encouraged to take over functions of such stationary equipment to be installed mostly by equipment that the users of the Elevator by default for other purposes anyway carry with them and which then specifically for generating

Control data for controlling the elevator system can be configured.

Similar to the concept of being able to bring and use his own device ("bring your own device" - BYOD), passengers of a lift can thus use their own familiar portable device, such as their own smartphone, for example by means of an application specially provided for this purpose ( "Αρρ"), for example, to ask the elevator system to drive an elevator car to its current location or after boarding the elevator car instruct the elevator installation to move the elevator car to a destination floor.

Use of portable devices to be carried by passengers to replace or supplement conventional COPs or LOPs can also be used to advantage in that, for example, in the process of generating control data for controlling the elevator system, an identity and / or authorizations of the passenger carrying the portable device are taken into account can.

For example, it may be provided that only certain users of the elevator system are driven to specific floors of a building and should have access to them. Accordingly, these specially authorized users may in advance specifically configure, for example, their portable device to be carried, for example by inputting an authorization code to be provided by the elevator operator so that they, and only them, for example, when projecting the control panel, visually display an image of an operator panel, by means of which access restricted floors of a building. On the other hand, unauthorized persons will then be visually presented a control panel in which the existence of such restricted floors, for example, is not recognizable or indicated that they can not be selected.

As an alternative to using portable devices of the passengers, the image of the control panel can also be projected using devices that are part of the elevator system and / or the areas of the control surface that are touched by the user can be detected using devices that are part of the elevator system. For example, a projector can be provided for the elevator installation, which projects an image of the operating panel onto a control surface in a way visually perceptible for the user. In addition, a camera or sensors can be provided for the elevator installation, by means of which the operating surface can be visually monitored in such a way that it can be detected when a passenger wants to touch and actuate a region of the operating surface onto which the control panel has been projected. The provision of such additional hardware for the elevator installation usually entails further manufacturing and installation costs, but can advantageously allow, for example, individual control panels to be matched to respective passengers to be projected can and thus for example only authorized passengers a

Access to access restricted floors is represented by means of the projected image of the control panel. In addition, adjustments to a virtual operator panel represented by projection can be easily implemented on the software side without the need for modifying or carrying equipment or other hardware.

According to one embodiment of the invention, the image of the control panel is directly on the control surface, which is either projected by a device of the elevator system or also serves as the control surface of a mobile device, such as. the touch screen of a smartphone, projected or displayed. In other words, the image of the control panel can be projected directly to the control surface in an elevator car or temporarily displayed as an image of the control panel of a mobile device, so that the illustrated control panel for the user of the Aufzuganiage on the

Control surface is visually perceptible.

Such a direct projecting of the operating panel onto the operating surface can be implemented particularly simply if a projector which is permanently installed on the elevator installation is used for this, so that the image of the operating panel can be displayed sharply and without distortion on the operating surface. A portable device, such as a smartphone, to be carried by a user may also be capable of projecting an image of an operating panel on the operating surface in a suitable manner. In this case, it can be advantageous, for example, if the portable device can determine its position and / or orientation relative to the operating surface in advance in order then to be able to project the image of the operating panel in a sharp and distortion-free manner.

In principle, any exposed surface which can be observed by a user from the outside in or on the elevator installation can serve as a control surface. Preferably, the control surface is kept neutral in color, that is, for example, monochrome and

preferably in a light color, especially white, kept. On such a control surface projected control panels are thus easily visually perceptible to a user. The control surface is preferably flat. For example, the

Operating surface to be a surface of a wall covering in an elevator car or in a building floor adjacent to an elevator door. The control surface or a it supporting component may be passive, that is, in no way needs to be controlled or regulated and accordingly does not necessarily have electrical connections or the like.

Preferably, a component which prepares the operating surface may be made of a material or designed structurally in such a way that a heat capacity in the area of the operating surface is designed such that a typically short touch of the operating surface by a user becomes a measurable and recognizable one

Temperature change in a small area of the control surface leads. To form the control surface for this purpose metallic materials or plastic materials or natural materials can be used.

Alternatively, according to one embodiment, the image of the

To project control panels directly into the user's eye.

For example, a smart glasses projector may be provided to project images directly onto the retina of a viewer's eye. In this case, an image can be projected in only one eye or, alternatively, in both eyes of the observer. A user of an elevator can look at a surface which appears suitable for this purpose as a control surface, so that an image of a projection projected into his eye

Operating panels for the viewer acts as if this panel is projected onto the control surface. The user can then touch certain small areas of the projected control panel manually to activate control functions displayed on the control panel, that is, for example, to be approached

Select destination floor.

Advantageously, it can be used in this case that the image projected into the eye of the user is visually perceptible exclusively to the user. That is, while the operator panel on the control surface is visible to the user, bystanders can not see this control panel. In this way, the privacy of the user can be better protected, since surrounding people, for example, can not recognize which floor the user wants to go to. In particular, if the user is authorized, for example, to drive into restricted access floors, he can use a to make relevant input of control data for the elevator system thus, without that persons traveling in an elevator car can recognize this.

According to one embodiment, the control data is sent wireless to the controller of

Elevator system transmitted.

Such a wireless data transmission can be advantageous, in particular, when a portable device to be carried by the user is used to project the image of the control panel, to detect the area of the control surface touched by the user and / or to generate the control data. This device can then preferably correspond wirelessly to the control of the elevator installation, so that the user does not have to cumbersome connect his portable device, for example, with the control of the elevator installation.

A wireless data transmission can take place, for example, via radio, for example WLAN (wireless local area network), directly to the control of the elevator system.

Alternatively, for example, a smartphone used as a portable device corresponding data, for example, via an Internet access in a data cloud

("Cloud") from where they then, for example, by an operator of

Elevator system to be forwarded to the control of the elevator system.

According to a second aspect of the invention, a device for generating control data for controlling an elevator installation is proposed, wherein the device is designed to carry out a method according to an embodiment orm of the above-described first aspect of the invention.

The device can for this purpose a projector for projecting an image of the

Control panels such that it is visually perceptible to a user on a control surface, and a spatially resolving thermal imaging camera for detecting touched by the user areas of the control surface within the image of the control panel by optically monitoring the control surface thereon, whether within the image of the control panel small areas with have temperature deviating from the surrounding large areas and with temperature equal to the temperature of the surrounding areas over time. Furthermore, the Device a computing unit for generating the control data depending on a position of the touched by the user areas of the control surface relative to the image of the control panel and a data transmission unit for transmitting the generated

Have control data to a control of the elevator system.

For example, the device may be portable with a user to guide

Device as described above with reference to the method to be performed therein. In particular, the device can act with acting as a projector, controllable light sources and as a spatially resolving thermal imaging camera

Be equipped light sensors. The arithmetic unit may be configured to suitably control the projector in order to visually project the image of the control panel visually perceptible to the user. In this case, for example, a relative positioning of the portable device with respect to the operating surface can be taken into account. Furthermore, the arithmetic unit may be configured to output image data derived from the

spatially resolved thermal imaging camera are supplied to analyze, in order to detect whether, for example, a small portion of a thermal image is locally warmer or colder than surrounding large areas, but gradually resumes its temperature of the surrounding areas, so that it can be assumed in that a user has previously touched this area and in this way has modified its temperature. The arithmetic unit may further analyze whether the area touched by the user corresponds to a predetermined area within the projected image of the control panel, by means of which, for example, a specific function of the elevator installation is to be activated. Then the arithmetic unit can then

generate corresponding control data for the elevator system and transmit it by means of the data transmission unit to the control of the elevator system. For example, the portable device can be configured with specially designed software ("app") in order to be able to appropriately control and use existing hardware in the portable device.

According to a third aspect of the invention, a method for controlling an elevator installation is described. The method has, in addition to the above-described generating control data by a method according to a

Embodiment of the above-outlined first aspect of the invention receiving the transmitted control data and controlling the elevator system based on the received control data.

In other words, in this aspect of the invention, the control data generated according to the above first aspect of the invention are not only generated but subsequently also received from components of the aircraft train capable of this purpose, that is to say, for example, by their control device, in order subsequently to operate the elevator installation based on them to be able to control received control data.

Further, in one embodiment of this method, controlling the elevator installation may be authorized by receiving an authorization code in addition to the control data. Such an authorization code may indicate, for example, that an owner of a portable device used to generate the control data should be authorized to activate certain functions of the elevator system such as, for example, access to restricted access floors. For this purpose can

For example, be provided that in the portable device of the user beforehand a corresponding authorization code has been stored. Alternatively, for example, a user may be prompted to enter an authorization code into his portable device or, alternatively, via the projected control panel when he / she wants to

Execution of an elevator function, which is subject to a restriction, wants to activate. As a further alternative, it may be provided, for example, that a user has to carry a separate component, for example in the form of a token, or to couple it with his portable device, wherein this token can then generate and / or emit the authorization code.

According to a fourth aspect of the invention, a control device for controlling an elevator installation is described. In addition to a device according to the above-mentioned second aspect of the invention, this control device has a receiving unit for receiving transmitted control data and a control unit for controlling the

Elevator installation based on the received control data.

According to a fifth aspect of the invention, there is provided an Aiifzuganlage, which in addition to a control device according to the fourth above described

Aspect of the invention comprises a control surface, wherein the control surface a Temperature control device has to vary a surface temperature of the control surface targeted.

Apart from the temperature control device, the operating surface need not have any separate equipment or components. The tempering device may be a heater or a cooling. The tempering device may in particular be designed to vary the surface temperature of the operating surface over a large area, preferably homogeneously over the entire operating surface. For example, with the help of the tempering device, the operating surface can be brought to a surface temperature which differs markedly from the typical temperature of a user's hand, for example is significantly cooler, for example cooler than 25 ° C., than a skin temperature of a user's hands. Thus, the control surface can be brought to a suitable cool temperature, for example even at otherwise high ambient temperatures, for example near 3 () ° C, so that small areas touched by a user temporarily due to the touch of a recognizable deviating from surrounding areas temperature can accept what can then be detected for example by a thermal imaging camera.

According to a sixth aspect of the present invention is a

A computer program product is proposed which has computer readable instructions which, when executed by a processor, instruct the latter to perform a method according to one of the embodiments of the first or third aspect of the invention

To control invention. Such a computer program product may be software programmed in any programming language. The

For example, a computer program product may be an application ("app") that is configured to run on a portable, intelligent device

To instruct the data processing unit of this device to take steps of a

To carry out inventive method or to control the data processing unit connected components such as a projector or a thermal imaging camera or a data transmission unit suitably.

According to a seventh aspect of the present invention, a computer-readable medium is proposed on which a computer program product according to the sixth aspect of the invention is stored. Such a computer-readable medium may be any medium capable of storing computer-readable instructions in a computer-readable manner. In particular, that can

computer-readable medium to be designed to store the instructions electrically and / or magnetically readable. The computer-readable medium can be, for example, a CD, a DVD, a flash memory, an EPROM, an EEPROM or parts such as servers of the Internet that make up the stored data

Computer program product can be downloaded.

According to an eighth aspect of the present invention, there is proposed the use of a portable apparatus for performing a method according to embodiments of the first or third aspect of the invention, the portable apparatus having a projector and a thermal imager. In other words, the

Use of a equipped with a projector and a thermal imaging camera portable device for generating control data or ultimately proposed to control an elevator system.

It should be understood that some of the possible features and advantages of the invention are described herein with reference to different embodiments. In particular, possible features and advantages are partially with respect to a

Method and described in part with reference to a device, wherein the

Method or the device are partially designed to generate control data for controlling an elevator system and partly for controlling the elevator system itself. One skilled in the art will recognize that the described features may be suitably combined, adapted or exchanged or transmitted in order to arrive at further embodiments of the invention.

Hereinafter, embodiments of the invention will be described with reference to the accompanying drawings, wherein neither the drawings nor the

Description are to be construed as limiting the invention.

Fig. 1 shows an elevator system, in which a method and a device according to a

Embodiment of the present invention is to implement. Fig. 2 shows an intelligent spectacle, which is designed as a method implementing a method according to the invention.

The figures are only schematic and not to scale. Like reference numerals designate like or equivalent features throughout the several figures.

Fig. 1 shows an elevator system 1, in which a method or a device 2 for

Generating control data for controlling the elevator installation 1 according to a

Embodiment of the present invention are implemented. The elevator installation 1 has a cabin 3, which is suspended from support means 5, for example in the form of ropes or belts, and can be moved vertically by means of a drive 7 within an elevator shaft 9. The drive 7 is suitably controlled by a control unit 1 1, for example, to move the car 3 to a desired floor 13 within a building.

Conventionally, a cabin control panel (COP) is provided in the elevator car 3, on which a user 15 can enter a movement request, for example by pressing keys. A waiting in a floor 13 users 15, a coming of the elevator car 3 by pressing a button on a corresponding

Specify Landing Control Panel (LOP).

In order to be able to avoid a separate provision and installation of such LOPs or COPs and thus the manufacturing and assembly costs associated therewith, it is proposed to adopt functions of an LOP or of a COP by means of a type of virtual operating panel.

In this context, it is assumed that users of a lift installation 1 will in the future regularly have their own portable devices which can take over, emulate and / or virtualize such functions of a LOP or COP. Such portable devices to be carried by a user may be so-called "wearables" such as a smart mobile phone, a smart watch, smart glasses 17, or a smart garment. By way of example, FIG. 2 shows a portable device 16 in the form of intelligent spectacles 17. The smart glasses 17 can be worn like a normal glasses by a user in the face and possibly similar to a conventional glasses serve as a visual aid and / or sunscreen. In addition, the smart glasses 17 have a projector 19, a location and time-resolution thermal imaging camera 21, a

Arithmetic unit 23 and a data transmission unit 25. Using modern

Microelectronics can run all these components with very little space and thus be integrated into a pair of glasses 17.

The projector 19 may, for example, a controllable light source, for example in the form of one or more light-emitting diodes (LED) and / or a projection display, for example in the form of a liquid crystal display (LCD), so that using the projector 19 spatially resolved images on a front of the glasses 17 Surface can be projected.

Alternatively, the projector 19 may be configured to project images directly into an eye of the user 15.

The spatially resolving thermal imager 21 can be designed, for example, by means of a CCD chip or a thermopile array to take infrared images of a surface located in front of the spectacles 17 and to convert them into a sequence of electrical signals.

The arithmetic unit 23 can have a central data processing unit (CPU) as well as data storage in order, on the one hand, to be able to control, for example, the projector 19 and / or to process and analyze the image data supplied by the thermal imaging camera 21 on the other hand.

According to further processed data and signals can finally be transmitted by means of the data transmission unit 25, for example, wirelessly to other equipment such as a receiving unit 39 of the elevator system 1.

In order to be able to emulate the task previously taken over by a COP or LOP of generating control data for controlling the elevator unit 1, it is possible according to a According to the invention, an image of an operating panel 27 is projected in such a way that it is visually perceptible, ie visible, to a user 15 of the elevator installation 1 on a control surface 29. The image of the control panel 27 can be projected directly onto the control surface 29 by means of the projector 21 or, alternatively, be projected into an eye of the user 15 in such a way that it sees the image on the control surface 29.

The projector 21 may in this case be part of a portable device 16 to be carried by the user 15, that is to say, for example, part of the intelligent spectacles 17. Alternatively, the projector 21 may also be provided as part of the elevator installation 1 and, for example, fixedly mounted in the elevator car 3 or in an area in the floor 13 near an elevator door.

The user 15 who would like to control the elevator installation 1 can visually display it

See image of the control panel 27 on the control surface 29 and recognize similar to a conventional COP or LOP on small areas 31, which may be visually like conventional control buttons. As in the case of conventional operating panels, the user 1 5 can touch such small-area areas 3 1 with his hand 33 and thus "operate" the virtual operating panel 21 in a quasi-conventional manner However, no keys that are actually structurally to be provided are actuated, but only areas on one otherwise not specifically for this

prepared area in or on the elevator system 1 touched.

By touching these small-area areas 3 1 within the image of the control panel 27, however, these typically heat because the hand 33 of the user 1 5 is usually warmer than, for example, a wall of the elevator car 3, which serves as a control surface 29. In special cases, the control surface 29 could also be warmer than the hand 33 of the user 15, so that the small areas 1 are locally cooled when touched by the hand 33 of the user 15.

In order to be able to selectively influence the operating surface 29 with regard to its surface temperature, a tempering device 35 can be provided by means of which the operating surface 29 can be cooled or heated. The tempering device 35 can thus keep the control surface 29 as flat as possible homogeneously to a predeterminable temperature.

In order to recognize now, soft the actuation button-like small area areas 31 of the user 15 has touched, so in particular a Verfahrwunsch for the

Specify elevator installation 1, the control surface 29 is optically monitored thereupon, whether within the image of the control panel 27 of one of these small-area areas 31 has a deviating from surrounding large areas 37 temperature. If this is the case, this can be regarded as the first indication that this small-area area 31 has previously been touched manually by the user 15.

As a further indication, it can be monitored whether the temperature of this small-area region 31 is again matched to the temperature of the surrounding regions 37 over time. If this is not the case, it can be assumed that the locally elevated temperature is probably not due to a previous contact by the user 1 5, but by other effects.

Overall, can be detected by the described optical monitoring of the control surface 27 with high reliability, if and where, where appropriate, where the user 15 has touched the control surface 29. Depending on an analysis of the position of the area touched by the user 15 3 1 of the control surface 29 relative to the image of the

Control panels 27 then the control data for the elevator installation 1 can be generated.

This control data can then finally be transmitted to the controller 1 1 of the elevator system 1. For this purpose, the controller 11 may be connected to the receiving unit 39, which is designed to receive, for example, the data transmitted by the data transmission unit 25 of the portable device 16 generated control data wirelessly.

Based on the control data received in this way, the control unit 11 can then correspondingly control the elevator installation, that is to say in particular the drive 7, in order to move the elevator car 3, for example, to a desired position. Finally, it should be noted that terms such as "comprising,""comprising," etc., do not exclude other elements or steps, and terms such as "a" or "an" do not exclude a multitude. It should also be appreciated that features or steps described with reference to one of the above embodiments may also be used in combination with other features or steps of others described above

Exemplary embodiments can be used. Reference signs in the claims are not to be considered as limiting.

LIST OF REFERENCE NUMBERS

1 elevator system

2 Device for generating control data

3 elevator car

5 suspension means

7 drive

9 elevator shaft

11 control unit

13 floor

16 portable device

17 glasses

19 projector

21 thermal imaging camera

23 arithmetic unit

25 data transmission unit

27 Image of the control panel

29 Control surface

31 small area

33 hand

35 tempering device

37 surrounding area

39 receiving unit

Claims

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A method for generating control data for controlling an elevator installation (1), comprising:

Projecting or displaying an image of a control panel (27) such that it is visually perceptible to a user (15) on a control surface (29);

Detecting a by the user (15) touched area of the control surface (29) within the image of the control panel (27) by visually monitoring the control surface (29) then whether within the image of the control panel (27) a small area (31) with surrounding large areas (37) of differing temperature and with im

Over time, the temperature of the surrounding regions (37) of equal temperature occurs;

Generating the control data in dependence on a position of the area of the operating surface (29) touched by the user (15) relative to the image of the operating panel (27); Transmittein the generated control data to a controller (1 1) of the elevator system (1).

2. The method of claim 1, wherein the projecting or displaying the image of the control panel (27) and recognizing the touched by the user (15) portion of the control surface (29) by means of one of the user (15) mitzu leading portable device

(16).

The method of claim 2, wherein the portable device (16) is a device selected from the group consisting of an intelligent mobile phone, a smart watch, smart glasses (17), and a smart garment.

4. The method according to any one of claims 1 to 3, wherein the image of the control panel

(27) is projected or displayed on the control surface (29).

5. The method according to any one of claims 1 to 3, wherein the image of the control panel

(27) is projected directly into at least one eye of the user (15).

6. The method according to any one of claims 1 to 5, wherein the control data are transmitted wirelessly to the controller (1 1) of the elevator system (1).

7. An apparatus for generating control data for controlling an elevator apparatus (1), wherein the apparatus is designed to carry out a method according to one of claims 1 to 6.

8. Apparatus according to claim 7, comprising:

a projector (19) for projecting or displaying an image of an operating panel (27) so as to visually represent to a user (15) on a control surface (29)

is perceptible;

a spatially resolving thermal imaging camera (21) for detecting areas of the control surface (29) touched by the user (15) within the image of the control panel (27) by visually monitoring the control surface (29) as to whether small-scale images exist within the image of the control panel (27) Areas (31) with temperature deviating from the surrounding large areas (37) and having a temperature equal to the temperature of the surrounding areas (27) over time;

a computing unit (23) for generating the control data in dependence on a position of the areas of the operating area (29) touched by the user relative to the image of the operating panel (27);

a data transmission unit (25) for transmitting the generated control data to a controller (1 1) of the elevator installation (1).

9. A method for controlling an elevator installation (1), comprising:

Generating control data by a method according to one of claims 1 to 6; Receiving the transmitted control data;

Controlling the elevator installation (1) based on the received control data.

10. The method of claim 9, further comprising:

Authorizing the control of the elevator installation (1) by receiving a

Authorization code.

1 1. A control device for controlling an elevator system, comprising:

a device according to any one of claims 7 and 8;

a receiving unit (39) for receiving transmitted control data; and a control unit (11) for controlling the elevator installation (1) based on the received control data.

12. Elevator installation (1), comprising:

a control device according to claim 1 1;

an operating surface (29), the operating surface (29) having a tempering device (35) in order to be able to vary a surface temperature of the operating surface (29) in a targeted manner,

A computer program product having computer readable instructions which, when executed by a processor, instructs it to

Method according to one of claims 1 to 6, 9 and 10 to control.

14. Computer readable medium, having a stored thereon

Computer program product according to claim 13.

15. Use of a portable device, which with a projector (19) and a

Thermal imager (21) is equipped for carrying out a method according to one of claims 1 to 6 or a method according to one of claims 9 and 10.