Rescue beacon light with verification of the rendered rescue path image

Abstract

An emergency exit sign (10) for displaying an emergency exit pictogram (301), wherein the emergency exit sign (10) comprises a device carrier (100) with a housing (101); at least one image sequence (300); a display (200) for displaying a respective image sequence (300), wherein the display (200) has a user-visible area (210a) and a user-invisible area (210b), wherein the user-invisible area (210b) is arranged inside the housing (101) of the device carrier (100); a sensor component (120) for determining data regarding monitoring the user-invisible area (210b) of the display (200); a controller (110) for controlling the display (200) and for evaluating the data determined by the sensor component (120).Each of the images in a sequence of images (300) is identical in the visible area (210a) and features a respective safety sign pictogram (301), and furthermore has a control field (310) in the non-visible area (210b) at a specific, always identical location, which has a specific design (310a, 310b), wherein the specific design (310a, 310b) differs between images of the sequence of images (300), and wherein the safety sign pictogram (301) shown in the visible area (210a) defines a type (V1, V2, V3) of the sequence of images (300).The sensor component (120) is configured to recognize the specific design (310a, 310b) of the control field (310) of the image sequence (300) and / or its temporal change between the individual images of the image sequence (300) and to transmit this recognized data to the controller (110), and the controller (110) is configured to determine the type (V1, V2, V3) of the image sequence (300) displayed on the display (200) based on the data transmitted by the sensor component (120).

Description

[0001] The invention relates to an escape sign luminaire with a display as a means of displaying an escape sign pictogram of the escape sign luminaire. Such escape sign luminaires are particularly flexible in use because the displayed escape sign pictogram is particularly easy to replace and, in particular, can be modified depending on the situation. Generally speaking, such escape sign luminaires therefore have the advantage over conventional static escape sign luminaires that changes in the environment can be flexibly taken into account by the escape sign luminaire and the respective escape sign pictogram displayed on it, thus increasing the overall safety of people in the vicinity of the respective escape sign luminaire.

[0002] Since escape sign luminaires that display the respective escape sign pictogram on a display carry the risk of displaying an incorrect escape sign pictogram, the respective display of such escape sign luminaires must be checked regularly to ensure the continued safety of people in, for example, a building or a specific area. Manual checking by a technician is hardly practical in this case, as the sheer number of escape sign luminaires within a building or a specific area would be too time-consuming and labor-intensive.

[0003] From EP 3 428 906 B 1, an escape sign luminaire is known in which a method for checking the displayed escape sign pictogram image is implemented, so that the escape sign luminaire itself can automatically determine which escape sign pictogram image is currently displayed. The escape sign luminaire known from this document, or rather the display of this escape sign luminaire, is in Figure 6This display 1200, known from the prior art, shows an escape sign image 1300 on which a respective pictogram 1301 is shown. The display 1200 can be divided into an escape sign pictogram area 1210a and a control area 1210b, wherein only the centered escape sign image area 1210a is visible to a user, the control area 1210b always being covered by a frame element. While the respective pictogram 1301 of the image 1300 is shown in the visible area 1210a and is thus visible to a user, in the control area, several control fields 1211a, 1211b, 1211c, 1211d are displayed, each of which has an individual design and, in combination, thus encodes a specific type of the displayed escape sign pictogram.This coding of the control fields 1211a - 1211d is read by a corresponding plurality of sensors installed in the frame of the escape sign luminaire. A corresponding controller of the escape sign luminaire can determine, based on the data output by the sensors, which escape sign pictogram is currently being displayed. However, the escape sign luminaire created in this way has the disadvantage that a frame is always required to surround the actual escape sign pictogram, making a frameless display for displaying the respective escape sign pictogram impossible. Furthermore, the display with the additional frame is bulky, as the frame with the sensors installed within it requires a certain installation height, thus making the escape sign luminaire more massive.

[0004] In this respect, the known escape sign luminaire for displaying an escape sign pictogram image is an escape sign luminaire which has several sensors and a frame, and thus also requires more space.

[0005] The invention is therefore based on the object of providing an improved escape sign luminaire by means of which the displayed escape sign pictogram can be checked.

[0006] This object is achieved according to the invention with the subject matter stated in the independent claim. Furthermore, a method for checking an escape sign pictogram displayed on a display of an escape sign luminaire is specified. Particular embodiments of the invention are specified in the dependent claims.

[0007] According to the present invention, an escape sign luminaire is provided for displaying an escape sign pictogram.According to the invention, this escape sign luminaire comprises a device carrier with a housing; at least one image sequence consisting of a plurality of images arranged in a looped display in a predetermined sequence, wherein the image sequence shows an escape sign pictogram; a display for displaying a respective image sequence, wherein the display is fastened to the device carrier, and wherein the display has a display side on which the image sequence is displayed, wherein the display has, on the display side, an area visible to a user and an area invisible to a user, and wherein the invisible area is arranged inside the housing of the device carrier; a sensor component for determining data relating to monitoring the invisible area of ​​the display; a controller for controlling the display and for evaluating the data determined by the sensor component.Furthermore, the invention provides that each of the images of an image sequence is identical in the visible area and has a respective escape sign pictogram, and in the non-visible area has a control field at a certain, always identical location, which has a specific design, wherein the specific design differs between images of the image sequence. Furthermore, the invention provides that the escape sign pictogram shown in the visible area defines a type of image sequence. In this case, it is provided that the sensor component is designed to recognize the specific design of the control field of the image sequence and / or its temporal change between the individual images of the image sequence and to transmit this recognized data to the controller.The controller is designed to determine the type of image sequence shown on the display based on the data transmitted by the sensor component.

[0008] By means of this escape sign luminaire according to the invention, it is therefore possible to flexibly display a wide variety of escape sign pictograms using the escape sign luminaire, wherein the type of escape sign pictogram displayed can be determined by monitoring the area inside the housing of the escape sign luminaire which is not visible to the user anyway. In this case, only a single sensor component is required to monitor this non-visible area of ​​the display. By specifically implementing the escape sign pictogram to be displayed as an image sequence, wherein the image sequence has a control field in the non-visible area of ​​the display, the type of escape sign pictogram is coded and integrated into the display of the image sequence itself. In this respect, only this (individual) control field needs to be monitored in order to determine the respective image sequence orto recognize their type and thus to distinguish between different types of escape sign pictograms. This also allows the sensor component or the sensor of the sensor component to be positioned particularly flexibly and easily within the housing of the device carrier of the escape sign luminaire, so that overall a particularly advantageous slim design of the escape sign luminaire, and in particular of the display and the device carrier, can be realized. Furthermore, with the escape sign luminaire according to the invention, a display with a frame surrounding the display of the escape sign pictogram is not required, so that the escape sign luminaire has a particularly slim, thin, and aesthetic design.

[0009] Optionally, if the escape sign luminaire comprises several image sequences, image sequences of different types are provided. This ensures that different escape sign pictograms can be displayed by the escape sign luminaire, whereby these different image sequences can be selected according to the respective circumstances of the positioning of the escape sign luminaire. In particular, it is conceivable for a first image sequence, for example, to show an escape sign pictogram with an escape sign symbol pointing to the left, a second image sequence to show an escape sign pictogram with an escape sign symbol pointing to the right, and a third image sequence with an escape sign symbol pointing straight ahead. This allows for particularly flexible signage of a respective escape route or its direction, individually and depending on the situation, by the escape sign luminaire.

[0010] Optionally, the escape sign luminaire is provided with an image buffer, wherein multiple image sequences can be stored in the image buffer, and wherein the image buffer contains at least one image sequence. This allows the controller to access and display a wide variety of image sequences in a particularly simple and flexible manner. For this purpose, the controller is preferably configured to load an image sequence to be displayed on the display from the image buffer and to send the loaded image sequence to the display.

[0011] Optionally, the escape sign luminaire is provided with an interface for communication with an external device, wherein the controller is designed to receive a desired image sequence via the interface and send it to the display. This allows the escape sign luminaire to be connected, for example, to an external control device which centrally controls the display of the escape sign luminaire. This is particularly advantageous in systems with multiple escape sign luminaires because it allows the individual escape sign luminaires to be controlled particularly conveniently and easily, and the respective desired image sequence to be displayed can be conveniently sent by the external device to the respective escape sign luminaires. Preferably, the controller is designed to send the determined type of displayed image sequence to an external device via the interface.This makes it particularly advantageous that the result of the check of the displayed image sequence can be sent to an external device, for example an external control unit, so that it can be checked here whether the type of image sequence actually displayed corresponds to the desired type of image sequence previously sent to the escape sign luminaire. In this respect, an additional control option is created in order to detect any display errors or any errors in the selection of the image sequence to be displayed and, preferably, to then correct them consistently. Furthermore, the controller is preferably designed, if the escape sign luminaire also has a previously addressed image memory, to select a desired image sequence for display on the display from the image memory based on instructions received via the interface. This implementation facilitates communication and / orThe bandwidth required for communication between the escape sign luminaire and an external device via the interface is kept as low as possible, since only a command and not the respective image sequence is transmitted via the communication channel.

[0012] Optionally, the controller is configured to compare the determined type of the displayed image sequence with a type specification known to the controller. This type specification can be stored directly in the controller itself, for example, during manufacture of the escape sign luminaire, so that the escape sign luminaire can check itself whether the currently displayed image sequence with the respective escape sign pictogram corresponds to the corresponding desired image sequence. Preferably, the controller is configured to receive the type assignment from an external device via the interface, provided the escape sign luminaire has an interface.This allows the corresponding appropriate type specification to be flexibly and easily transferred to the escape sign luminaire, particularly when the desired image sequence specified by an external device changes, so that the type specification can be adapted to the desired image sequence. This makes it particularly easy to check whether the correct image sequence is being displayed, especially with variable, adjustable image sequences. Furthermore, if the escape sign luminaire has an interface, it can preferably be provided that the result of the comparison of the determined type of the displayed image sequence with the type specification is output to an external device via the interface.This makes it particularly easy to monitor the escape sign luminaire from outside, and in particular when a system of several escape sign luminaires is operated simultaneously, it is particularly easy and flexible to check whether the desired image sequence is displayed correctly with the respective escape sign pictogram.

[0013] Optionally, the sensor component can be located inside the housing. This further enhances the compact and slim design of the escape sign luminaire. Furthermore, this allows for particularly efficient and error-free monitoring of the non-visible area of ​​the display, as the housing shields external light sources, thus ensuring the most unadulterated viewing and thus the acquisition of data regarding the specific design of the control field of the currently displayed image sequence.

[0014] Optionally, it is provided that the monitoring of the non-visible area of ​​the display by means of the sensor component takes place by directly observing at least a section of the non-visible area. In this case, the sensor component directly monitors the surface of the display in the non-visible area of ​​the display, wherein preferably the control field of the image sequence is specifically monitored. This makes it particularly easy and unbiased for the sensor component to determine the specific design of the control field or the temporal change in the specific design of the control field. In particular, it can be provided that the sensor of the sensor component looks essentially perpendicularly at the display side and thus perpendicularly at the non-visible area of ​​the display, and thus monitors this area. It is also conceivable for the sensor to be arranged slightly obliquely oriented to the display side and thus to the non-visible area of ​​the display.

[0015] Optionally, the sensor component can monitor the non-visible area of ​​the display by observing a wall area located inside the housing. However, the sensor component does not have to be positioned facing directly onto the non-visible area, but can, in particular, be positioned parallel to the surface of the display. The wall area inside the housing is illuminated and illuminated by the non-visible area of ​​the display located inside the housing, in accordance with the respective display in the non-visible area, and thus in accordance with the specific design of the control field, so that the sensor component can detect the radiation reflected from the wall area and thus monitor the non-visible area of ​​the display.In this case, it is preferably provided that this wall area is in the direct vicinity of the control field of the image sequence, so that the light reflected from the wall area has a particularly advantageously high intensity, allowing the sensor component to detect it particularly easily and accurately. Further preferably, this wall area is arranged obliquely relative to the surface of the display, whereby the reflection angle of the light emitted from the non-visible area of ​​the display towards the sensor component is particularly advantageous.

[0016] Optionally, direct viewing of the non-visible area and / or viewing of the wall area can be achieved using a mirror. This allows the sensor component to be arranged in a direction that is essentially parallel to the surface of the display and thus essentially perpendicular to the light emission direction of the display. This allows for a particularly flat design of the housing, and thus of the device carrier, and thus of the escape sign luminaire as a whole.

[0017] Optionally, the specific design can be implemented using specific brightness values ​​and / or specific color values ​​and / or specific patterns and / or a QR code and / or a barcode. This creates various design options, each of which stores or stores the type of a particular image sequence in coded form within the image sequence or within the individual images of the image sequence.

[0018] Preferably, the respective type of image sequence is encoded in the respective difference between the individual images of an image sequence. This is achieved, for example, by different (particularly color- or texture-related) designs of the control field of the image sequence.

[0019] Optionally, the display can be an OLED display, an LC display, a TFT-LC display, or an E-INK display. This makes it particularly advantageous to create an escape sign luminaire, always providing a high-contrast display of the respective escape sign pictogram of the respective image sequence for the user. The specific design is particularly easy to detect, particularly in the non-visible area of ​​the display, and thus especially in the control field, thanks to the sensor component.

[0020] Furthermore, the invention provides a method for checking an image sequence displayed on a display of an escape sign luminaire, wherein the escape sign luminaire is designed according to one of the embodiments presented herein. The method comprises at least the following steps: a) displaying the images of the respective image sequence in their specified order in a looped playback on the display, whereby only the specific design of the control field differs between images of the image sequence; b) detecting the specific design and / or its temporal change in the control field of the displayed image sequence by the sensor component; c) transmitting the detected data to the controller; d) evaluating the transmitted data by the controller and determining the type of image sequence shown on the display.

[0021] Using this method, the respective type of escape sign pictogram shown on the display can be determined in a particularly simple manner by monitoring the non-visible area and, in particular, the control field of the displayed image sequence. It is therefore only necessary to monitor the position of one control field of the displayed image sequence, meaning that only a single sensor of the sensor component is required. This reduces the effort and complexity of the evaluations, as now only the signal from one sensor component or its sensor needs to be evaluated by the controller. It is also possible to arrange the sensor component on the same circuit board as the controller, as detection, transmission, and evaluation all take place inside the device carrier, eliminating the need for a frame-like structure with integrated sensors around the display.

[0022] Optionally, the method may include the further method step: e) transmitting the determined type of image sequence displayed on the display to an external device via the interface of the escape sign luminaire. This makes this information available externally, allowing external response to the respective determined result and, for example, initiating a change in the displayed escape sign pictogram, i.e., the displayed image sequence.

[0023] Optionally, the method comprises the further method step: f) comparing the determined type of the image sequence shown on the display with a type specification known to the controller, wherein the controller has preferably received the type specification from an external device via the interface of the escape sign luminaire. This ensures that the escape sign luminaire can check itself whether the displayed image sequence corresponds to the respective escape sign pictogram of the desired specification of the escape sign pictogram. Based on the result of this check, the controller can then initiate corresponding steps, wherein it is conceivable that the controller itself changes the displayed image sequence, for example by selecting an image sequence corresponding to the type specification from the image memory, or that the controller transmits the result of this check to an external device.The type specification using an external device also makes the process particularly flexible, as the specification of the desired image sequence can be transmitted to the respective escape sign luminaire in a scenario-specific manner.

[0024] Optionally, the method comprises the further method step: g) transmitting the result of the comparison of the determined type of the image sequence shown on the display with the type assignment via the interface to an external device. This makes the method even more flexible, as it makes it particularly easy to control the checking of an image sequence shown on a display of an escape sign luminaire from an external device. This allows, for example, a desired image sequence to be displayed to be selected externally and transmitted to the escape sign luminaire so that the respective escape sign pictogram of the now desired image sequence is displayed in the new method step a).

[0025] The invention is explained in more detail below based on various embodiments and their configurations, and with reference to the drawings. They show: Figure 1 shows a schematic oblique view of an exemplary embodiment of an escape sign luminaire according to the invention; Figure 2 shows a schematic cross-sectional view of an exemplary embodiment of an escape sign luminaire according to the invention; Figures 3-5 show several schematic representations of a display of an exemplary embodiment of an escape sign luminaire according to the invention with different types of image sequence displayed on the display, with consideration of the temporal sequence of the specific design of the control field of the respectively displayed image sequence; Figure 6 shows a schematic representation of a display of an escape sign luminaire known from the prior art.

[0026] The Figure 1shows the basic structure of an exemplary embodiment of an escape sign luminaire 10 according to the invention for displaying an escape sign pictogram 301, wherein the escape sign luminaire 10 has a device carrier 100 with a housing 101 and a display 200 for displaying a respective image sequence 300, and the image sequence 300 itself. In the embodiment shown, a sensor component 120 and a controller 110 are also present inside the housing 101. This is particularly evident in the cross-sectional view of the Figure 2shown. In addition to the controller 110, other electronic components, such as an emergency power battery or an interface 130 for communication with external devices, can also be provided. For wall or ceiling mounting, the escape sign luminaire 10 preferably has a holding device 500, wherein it can also be provided that cables for power supply and / or communication are routed to the escape sign luminaire 10 and its electronic components via the holding device 500.

[0027] As can be seen from the embodiment in Figure 1As can be seen, the display 200 is secured to the device carrier 100, with no frame element surrounding the display 200. Thus, the entire area of ​​the display 200, and in particular the entire display side 210 of the display 200, can be used to display a respective image sequence 300. By designing the escape sign luminaire 10 with a display 200 for displaying a respective escape sign pictogram 301, the escape sign luminaire 10 can be used particularly flexibly and depending on the situation.

[0028] According to the invention, the escape sign luminaire 10 does not display a single image, but rather an image sequence 300 consisting of multiple images arranged in a looped display in a fixed sequence. Each of the images of the respective image sequence 300 always displays the same escape sign pictogram 301, so that a user always sees the same escape sign pictogram 301 when viewing the escape sign luminaire 10 and thus the visible area 210a of the display 200, as long as a currently displayed image sequence 300 is not changed.A change in the displayed image sequence 300 may be necessary if it is determined that the wrong image sequence 300, and thus in particular the wrong escape sign pictogram 301, is being shown, or if other circumstances change that result, for example, in the escape route changing, and thus a different escape sign pictogram 301 is to be displayed. For this purpose, the escape sign luminaire 10 according to the invention has an integrated checking mechanism that checks which image sequence 300, and thus which escape sign pictogram 301, is displayed in the visible area 210a. The escape sign luminaire 10 is designed to recognize a respective type V1, V2, V3 of the image sequence 300, wherein the type V1, V2, V3 is defined by the respectively displayed escape sign pictogram 301 of a respective image sequence 300.Different types V1, V2, V3 of such image sequences 300, each with different emergency sign pictograms 301, are shown in the . Figures 3 to 5 shown.

[0029] As from Figure 2 As can be seen, the display 200 projects at its upper end into the housing 101 of the device carrier 100, is mechanically coupled there to the device carrier 100 and is further electrically connected to the controller 110, which is designed to transmit a respective image sequence 300 to the display 200 for display. Figure 2It can be seen that the display side 210 of the display 200 is arranged on its front side, with the rear side 220 of the display being on the opposite side. The image sequence 300 is displayed on the display side 210, with the display side 210, and thus also the image sequence 300, being divisible into a user-visible area 210a and a user-invisible area 210b. The user-visible area 210a is arranged outside the housing 101 of the device carrier 100, so that this part of the display 200 is always visible to a user.

[0030] Thus, the respective escape sign pictogram 301 of the image sequence 300 is always shown on this visible area 210a of the display 200. A non-visible part of the image sequence 300 is also shown on the non-visible area 210a of the display 200, wherein each of the images of an image sequence 300 has a control field 310 at a specific, always identical location in this non-visible area 210b, which control field has a specific design 310a, 310b. While each of the images of a respective image sequence 300 is always identical in the visible area 210a, the specific design 310a, 310b differs between images of the image sequence 300. It is not absolutely necessary for each individual image of the image sequence 300 to have a different specific design 310a, 310b compared to the other images. This is also evident from the exemplary representation of three different escape sign image sequences 300 of the Figures 3 to 5shown. Here, a respectively displayed escape sign pictogram 301 defines the respective type V1, V2, V3 of the respective image sequence 300. The escape sign luminaire 10 is designed with the sensor component 120 for determining data relating to the monitoring of the non-visible area 210b of the display 200 such that the sensor component 120 recognizes the respective specific design 310a, 310b of the control field 310 of the image sequence 300 and / or its temporal change between the individual images of the image sequence 300 and transmits this recognized data to the controller 110.

[0031] In Figure 2 An exemplary embodiment is shown in which the sensor component 120 is arranged parallel to the surface of the display 200. The monitoring direction 121 of the sensor component 120 thus also extends substantially parallel to the surface of the display 200, wherein in the specific embodiment of the Figure 2a mirror component 400 is provided, which is arranged, in particular obliquely, in the direct vicinity of the control field 310 of the image sequence 300 and thus in the corresponding control area of ​​the non-visible area 210b of the display 200. This ensures that the sensor component 120 directly views the section of the non-visible area 210b, in which the control field 310 is always arranged, despite the parallel alignment in its field of view 121 and thus particularly well monitors the specific design 310a, 310b of the control field 310 of the image sequence 300. Alternatively, it can be provided that the sensor component 120 views a wall area 101a of the housing 101 of the device carrier 100, at which a light emitted via the control field 310 of the image sequence 300 is reflected and can thus be detected by the sensor component 120.In this respect, the monitoring of the non-visible area 210b of the display 200 by means of the sensor component 120 can be carried out both by directly observing at least a portion of the non-visible area 210b, and in particular the control area in which the control field 310 of the image sequence 300 is arranged, or by observing a wall area 101a located inside the housing 101.

[0032] Through the Figure 2The implementation of the escape sign luminaire 10 shown with the obliquely arranged mirror element 400 enables a particularly thin and space-saving arrangement within the housing 101 and thus, overall, a particularly narrow design of the escape sign luminaire 10, since the sensor component 120 is not arranged vertically above the visible area 210b. This ensures that the monitoring area 121 of the sensor component 120 can run essentially parallel to the direction of extension of the display 200 for direct viewing of the non-visible area 210b of the display 200, and a monitoring area 121 running perpendicular to the surface of the display 200 is not necessary.

[0033] The sensor component 120 constantly monitors the control area with the control field 310 of the image sequence 300, wherein the data determined by the sensor component 120 are forwarded to the controller 110. The controller 110 is designed to determine the respective type V1, V2, V3 of the image sequence 300 displayed on the display 200 based on the data transmitted by the sensor component 120. This is particularly the case in the Figures 3 to 5 illustrated, wherein the escape sign luminaire 10 can determine which escape sign pictogram 301 is displayed based on the data obtained by the sensor component 120 regarding the specific design 310a, 310b of the control field 310, since the type V1, V2, V3 of the image sequence 300 is recognized in coded form based on the specific design 310a, 310b or its temporal change.

[0034] In the Figures 3 to 5A special implementation of the specific design 310a, 310b of the control field 310 is illustrated by way of example. In the embodiment shown, it is provided that the specific design 310a, 310b of the control field 310 differs between the individual images of the image sequence 300, and in particular can have two different designs, namely as a black control field 310a or as a white control field 310b.

[0035] In the exemplary embodiment shown, each image sequence 300 has four images, with the individual images differing only in the specific design 310a, 310b of the control field 310. While the respective variant of the escape sign pictogram 301 is always shown in the visible area 210a of the image sequence 300 and thus of the display 200, the specific design 310a, 310b of the control field 310 can differ - invisible to the user - in the non-visible area 210b of the image sequence 300 and thus of the display 200. Figure 3 A first type V1 is shown, which shows the image sequence 300 with an escape sign pictogram 301, which shows the escape route in a straight direction, with the escape route arrow pointing downwards and the "Running Man" running from right to left. Figure 4shows a second type of image sequence 300, which shows an escape sign pictogram 301 indicating an escape route in a direction to the left, with the escape route arrow pointing to the left and the "Running Man" running from right to left. Figure 5 shows a third type V3 of the image sequence 300, with an escape sign pictogram 301 pointing the escape route to the right, with the escape route arrow pointing to the right and the "running man" running from left to right. These designs of the escape sign image sequences 300 are to be understood merely as examples; it is of course conceivable to display other escape sign pictograms on a display 200 of an escape sign luminaire 10.

[0036] With regard to the sensor component 120 and the controller 110, it is now provided that the sensor component 120 monitors the control area of ​​the display 200, which always displays a control field 310 of the image sequence 300 at the same location - since the control field 310 of the image sequence 300 is always positioned at the same location on the individual images - and thus recognizes the respective specific design 310a, 310b of the individual images of the image sequence 300.

[0037] In the exemplary design of the Figure 3It is provided that in the first image of the image sequence 300, the control field 310 has a black field 310a as a specific design. In the second image of the image sequence 300, it is now provided that the control field 310 has a white design 310b. In the third image, a black design 310a is again provided, and in the fourth image, a white design 310b. The sensor component 120 thus recognizes the different specific designs of the individual images of the image sequence 300, and in particular their temporal changes, and forwards this determined data to the controller 110. The controller 110, in turn, determines the respective type V1, V2, V3 of the image sequence 300 displayed on the display 200 based on this data.This is done, for example, by comparing the detected specific configuration 310a, 310b of the individual images of the image sequence 300 with data provided to the controller 110, which assigns a specific type V1, V2, V3 of the image sequence 300 to the various specific configurations 310a, 310b of an image sequence 300 and / or to the temporal changes. This data can be provided, for example, in the form of a database stored in a memory and / or in the controller 110 itself; this data can also be sent, for example, from an external device to the escape sign luminaire 10 or its controller 110.

[0038] In the example of Figure 3This means that the escape sign luminaire 10 determines the respective type V1, V2, V3 by monitoring the non-visible area 210b of the display 200 and the associated recognition of the specific design 310a, 310b. Specifically, in the present example, this means the Figure 3 that the sequence of the control field 310 of the individual images of the image sequence 300 is assigned as black-white-black-white by the controller 110 to the first type V1. In the second example of the Figure 4 the controller 110 again detects the second type V2 with respect to the displayed image sequence 300 by detecting the sensor component of the control field 310 as a sequence black-black-white-black. Figure 5 In the third example shown, the controller 110 recognizes the image sequence white-black-white-white and, on the basis of this recognized data, evaluates the third type V3 for the displayed image sequence 300.

[0039] By monitoring a single control field 310, it is thus achieved that a respective displayed image sequence 300 can be determined by the escape sign luminaire 10 itself as the type V1, V2, V3 of the image sequence 300.

[0040] As in the Figures 3 to 5As shown sketchily, in the exemplary embodiment it is provided that the individual images of the image sequence 300 are each displayed for the same length of time, with a first image being displayed between the time period t0 and t1, a second image between the time period t1 and t2, a third image between the time period t2 and t3, and a fourth image between the time period t3 and t4. These images of the image sequence 300 are displayed in a loop, so that after the fourth image has been displayed, i.e. between the time period t3 and t4, the first image is displayed again. In particular, it can be provided that a special implementation of the control field 310 is provided between the last image of the image sequence 300 and the first image of the image sequence 300, i.e. a special, specific design of the control field 310 is present.By means of this special implementation, the sensor component 120 detects this special design and forwards the correspondingly detected data to the controller 110, which in turn is indicated by this detected data of the special design that the image sequence 300 now repeats, i.e., starts again with the first image. In this case, for example, it can be provided in particular that another image is added to the image sequence 300, in which the control field 310 has a special specific design, and in particular differs from the special designs 310a and 310b already described. In particular, a gray control field 310 could be used for this purpose, for example, since this special specific design is particularly easily detected by the sensor component 120 and is sufficiently different from the other specific designs 310a, 310b described by way of example.

[0041] It is also conceivable to initiate the transition between the last and first image of the image sequence 300 by means of a temporal extension and / or shortening of a respective image. Other design options are also conceivable in this regard, whereby the only essential aspect with regard to this specific design is that the beginning and / or end of the image sequence is announced, thus enabling the correct evaluation of the recognized data and, in particular, the correct decoding of the information contained in the control field 310 or its temporal change with regard to the respective type V1, V2, V3 of the image sequence 300. Furthermore, it is also conceivable for the controller 110 itself to have information about when the image sequence 300 starts again from the first image. This can be achieved, in particular, by time synchronization between the controller 110 and the display 200.This makes it particularly advantageous and easy for the controller 110 to recognize the correct type V1, V2, V3 of the displayed image sequence 300.

[0042] Furthermore, it is conceivable that the specific design 310a, 310b is not only realized by a black, white control field and / or a gray control field, but that the respective specific design 310a, 310b is also implemented by other specific color values, and / or specific brightness values, and / or specific patterns, and / or by a QR code and / or by a barcode. Thus, various implementations are created by means of which the sensor component 120 can recognize the specific design 310a, 310b and the controller 110 can determine the respective type V1, V2, V3 of the image sequence 300 based on this data.

[0043] An image sequence 300 within the meaning of this invention can, for example, be a video file containing multiple images that are subsequently played back as an image sequence 300. Furthermore, it is conceivable that the image sequence 300 can also be a GIF file (i.e., a Graphics Interchange Format file) in which multiple individual images are stored, which are played back one after the other in a loop in an image sequence 300. Furthermore, it can be provided, for example, that the individual images of the image sequence 300 are stored in a folder—which is present, for example, in an image memory of the escape sign luminaire 10 or the controller 110—in a numbered sequence and are thus forwarded by the controller 110 as an image sequence 300 to the display 200 for display.Regardless of the specific implementation of a respective image sequence 300, the individual images in the visible area 210 are each identical and have a respective escape sign pictogram 301 corresponding to the respective type V1, V2, V3 of the image sequence 300. In the non-visible area 210b, however, the individual images have differences, at least in the control field 310, wherein these differences are detected in the reproduction of the image sequence 300 by the sensor component 120, and on the basis of this data, the controller 110 can determine the respective type V1, V2, V3 of the displayed image sequence 300.

[0044] It can also be provided that the escape sign luminaire 10 comprises a plurality of different image sequences 300, wherein image sequences 300 of different types V1, V2, V3 are present. In particular, it can be provided that the escape sign luminaire 10 has an image memory, wherein the image sequences 300 can be stored in the image memory and read by the controller 110. The controller 110 can load a desired image sequence 300 and send it to the display 200 for display.

[0045] Furthermore, it can be provided that the escape sign luminaire 10, as in Figure 2shown, has an interface 130 for communication with an external device, wherein the controller 110 is designed for communication via the interface 130. In particular, it can be provided that the controller 110 receives a desired image sequence 300 via the interface 130 and then sends it to the display 200. Alternatively or additionally, it can also be provided that the controller 110 receives a desired image sequence 300 via the interface 130 and then stores it in the image memory before the controller 110 in turn sends the desired image sequence 300 to the display 200 for display. In this case, it can also be provided that the controller 110 receives an instruction via the interface 130 as to which concrete image sequence 300 orwhich specific type V1, V2, V3 of the escape sign pictogram 301 is to be displayed on the display 200, wherein the controller 110 then loads the corresponding image sequence 300, for example, from the image memory and sends it to the display 200 for display. Furthermore, the controller 110 can be configured to send the determined type V1, V2, V3 of the displayed image sequence 300 to an external device via the interface 130.

[0046] Furthermore, it can be provided that the controller 110 is configured to compare the determined type V1, V2, V3 of the displayed image sequence 300 with a type specification known to the controller 110. This type specification corresponds to a target value, which is compared with the actual value (i.e., the determined type V1, V2, V3) of the actually displayed image sequence 300 determined by evaluating the data detected by the sensor component 120. This makes it possible to determine whether the displayed image sequence 300 corresponds to this specification.

[0047] Furthermore, the type specification can also be transmitted from an external device to the controller 110 via the interface 130, whereby it is also conceivable for the controller 110 to output the result of the comparison to an external device via the interface 130. This makes it particularly easy to control the escape sign luminaire 10 from an external device, which significantly simplifies the operation of the escape sign luminaire 10 and is particularly advantageous in a system with multiple escape sign luminaires 10, since this allows the multiple escape sign luminaires 10 to be individually remotely controlled.

[0048] Thus, a particularly advantageous escape sign luminaire 10 is created, which is characterized by a narrow and slim design of the device carrier 100 or the housing 101, as well as a display 200 advantageously arranged framelessly on the device carrier. By monitoring the non-visible area 210b of the display 200 and in particular the control field 310 of the displayed image sequence 300 by the sensor component 120 inside the housing, the sensor component 120 can generate data relating to the specific design 310a, 310b particularly easily and efficiently. This can be done in particular by directly observing the display 200 and in particular the control field 310, or by observing the wall area 101a of the housing 101.

[0049] In the special embodiment of the escape sign luminaire 10 with a mirror 400 arranged inside the housing 101, which, viewed at an angle relative to the surface of the display 200, is arranged in the non-visible area 210b, a direct viewing of the non-visible area 210b, and in particular of the control field 310, is possible through the sensor component 120, even though the sensor component 120 itself is not arranged to face directly onto the display surface 210. Rather, the monitoring area 121 or the monitoring direction 121 of the sensor component 120 runs parallel to the display surface 210 of the display 200, with the sensor component 120 thus being arranged in front of an end face of the display 200 and oriented substantially parallel to the surface of the display 200. This enables a particularly compact and slim design of the housing 101 and thus of the escape sign luminaire 10.

[0050] Such an arrangement of the sensor component 120 with a parallel alignment relative to the display 200, and thus a positioning in front of an end face of the display 200, is also conceivable in the special implementation without a mirror in which the sensor component 120 does not monitor the display 200 directly, but in which the monitoring area 121 of the sensor component 120 is directed towards an inner wall area 101a of the housing 101, which reflects the light emitted by the display 200 (and in particular that from the non-visible area 210b, and thus in particular that from the control field 310 of the image sequence 300).

[0051] The sensor component 120 can be implemented, in particular, by a brightness sensor, whereby this design makes it particularly easy to dispense with direct viewing of the display 200 and, in particular, the non-visible area 210b, since viewing the wall area 101a, which is particularly preferably arranged in the immediate vicinity of the control field 310, is sufficient for the brightness sensor to detect the specific design 310a, 310b of the control field 310. A particular synergy arises here with regard to a brightness sensor as the sensor component 120, provided that the housing wall 101a itself is designed to be oblique relative to the surface of the display side 210, and thus the light emitted by the control field 310 is particularly advantageously reflected in the direction of the sensor component 120 or its monitoring area 121.Nevertheless, a direct viewing of the non-visible area 210b of the display 200 is of course also possible with a brightness sensor.

[0052] It is also conceivable for the sensor component 120 to be embodied by a camera, whereby this configuration is particularly advantageous for direct viewing of the non-visible area 210b of the image sequence 300, since the specific design 310a, 310b of the control field 310 can be monitored in particularly detailed detail. A camera as the sensor component 120 proves to be advantageous, particularly in implementations with QR codes and / or barcodes and / or patterned control fields 310.

[0053] Implementations are also conceivable in which the sensor component 120 uses a color sensor and / or a light sensor and / or another sensor type already mentioned. Ideally, the type of the sensor component 120 is adapted to the intended specific configurations 310a, 310b of the individual images of the image sequences 300.

[0054] It can also be provided that a sensor cavity is provided within the housing 101 of the escape sign luminaire 10, which contains the control area of ​​the display 200, which corresponds to the area of ​​the always identical location of the control field 310. It would also be conceivable for the sensor component 120 to only monitor the brightness within the cavity, since the brightness or the change in brightness of the cavity corresponds to the specific design 310a, 310b displayed in the control field 310, the individual images of the image sequence 300.

[0055] With these various implementations of the escape sign luminaire 10, a flexible positioning of the sensor component 120 within the housing 101 of the device carrier 100 can be achieved, thus enabling a thinner design of the escape sign luminaire 10. Furthermore, a displayed image sequence 300 can be determined particularly easily and cost-effectively by the escape sign luminaire 10 itself. This allows the operation of the escape sign luminaire 10 to be monitored and controlled particularly easily and efficiently. It is also conceivable that the escape sign luminaire 10 can be monitored and controlled particularly easily by an external device.

[0056] Overall, an escape sign luminaire 10 for displaying an escape sign pictogram 301 is specified, wherein the escape sign luminaire 10 has a device carrier 100 with a housing 101; at least one image sequence 300; a display 200 for displaying a respective image sequence 300, wherein the display 200 has an area 210a visible to a user and an area 210b invisible to a user, wherein the invisible area 210b is arranged inside the housing 101 of the device carrier 100; a sensor component 120 for determining data relating to monitoring the invisible area 210b of the display 200; a controller 110 for controlling the display 200 and for evaluating the data determined by the sensor component 120.Each of the images of an image sequence 300 is identical in the visible area 210a and has a respective escape sign pictogram 301, and further has a control field 310 in the non-visible area 210b at a specific, always identical location, which control field has a specific design 310a, 310b, wherein the specific design 310a, 310b differs between images of the image sequence 300, and wherein the escape sign pictogram 301 shown in the visible area 210a defines a type V1, V2, V3 of the image sequence 300.The sensor component 120 is designed to recognize the specific design 310a, 310b of the control field 310 of the image sequence 300 and / or its temporal change between the individual images of the image sequence 300 and to transmit this recognized data to the controller 110, and the controller 110 is designed to determine the type V1, V2, V3 of the image sequence 300 displayed on the display 200 based on the data transmitted by the sensor component 120.

Claims

1. An escape sign luminaire (10) for displaying an escape sign pictogram (301), the escape sign luminaire (10) comprising: • a device carrier (100) with a housing (101); • at least one image sequence (300) consisting of several images arranged in a looped display in a predetermined sequence, wherein the image sequence (300) shows an escape sign pictogram (301); • a display (200) for displaying a respective image sequence (300), wherein the display (200) is fastened to the device carrier (100), wherein the display (200) has a display side (210) on which the image sequence (300) is displayed, wherein the display (200) has, on the display side (210), an area (210a) visible to a user and an area (210b) invisible to a user,wherein the non-visible area (210b) is arranged inside the housing (101) of the device carrier (100); • a sensor component (120) for determining data relating to monitoring the non-visible area (210b) of the display (200); • a controller (110) for controlling the display (200) and for evaluating the data determined by the sensor component (120); wherein each of the images of an image sequence (300) is identical in the visible area (210a) and has a respective rescue sign pictogram (301), and in the non-visible area (210b) has a control field (310) at a specific, always identical location, which has a specific design (310a, 310b), wherein the specific design (310a, 310b) differs between images of the image sequence (300), and wherein the rescue sign pictogram (301) shown in the visible area (210a) defines a type (V1, V2, V3) of the image sequence (300),wherein the sensor component (120) is designed to recognize the specific design (310a, 310b) of the control field (310) of the image sequence (300) and / or its temporal change between the individual images of the image sequence (300) and to transmit these recognized data to the controller (110), wherein the controller (110) is designed to determine the type (V1, V2, V3) of the image sequence (300) displayed on the display (200) based on the data transmitted by the sensor component (120).

2. Escape sign luminaire according to claim 1, wherein, if the escape sign luminaire (10) comprises a plurality of image sequences (300), image sequences (300) of different types (V1, V2, V3) are present.

3. Escape sign luminaire according to claim 1 or 2, wherein the escape sign luminaire (10) has an image memory, wherein a plurality of image sequences (300) can be stored on the image memory, and wherein the image memory has at least one image sequence (300), wherein preferably the controller (110) is designed to load an image sequence (300) to be displayed on the display (200) from the image memory and to send the loaded image sequence (300) to the display (200).

4. Escape sign luminaire according to one of the preceding claims, wherein the escape sign luminaire (10) has an interface (130) for communication with an external device, wherein the controller (110) is designed to receive a desired image sequence (300) via the interface (130) and send it to the display (200), and wherein the controller (110) is preferably designed to send the determined type (V1, V2, V3) of the displayed image sequence (300) to an external device via the interface (130); wherein, if the escape sign luminaire (10) has an image memory according to claim 3, the controller (110) is preferably designed to select a desired image sequence (300) for display on the display (200) from the image memory based on instructions received via the interface (130).

5. Escape sign luminaire according to one of the preceding claims, wherein the controller (110) is designed to compare the determined type (V1, V2, V3) of the displayed image sequence (300) with a type specification known to the controller, and wherein the controller (110) is preferably designed to receive the type specification from an external device by means of the interface (130) if the escape sign luminaire (10) has an interface (130) according to claim 4, and / or wherein the controller (110) is further preferably designed to output the result of the comparison to an external device via the interface (130).

6. Escape sign luminaire according to one of the preceding claims, wherein the sensor component (120) is arranged inside the housing (101).

7. Escape sign luminaire according to one of the preceding claims, wherein the monitoring of the non-visible area (210b) of the display (200) by means of the sensor component (120) is carried out by directly observing at least a portion of the non-visible area (210b).

8. Escape sign luminaire according to one of the preceding claims, wherein the monitoring of the non-visible area (210b) of the display (200) by means of the sensor component (120) takes place by observing a wall area (101a) located inside the housing (101), wherein preferably this wall area (101a) is in the direct vicinity of the control field (310) of the image sequence (300), wherein preferably this wall area (101a) is arranged obliquely relative to the surface of the display (200).

9. Escape sign luminaire according to one of the preceding claims 7 or 8, wherein the direct viewing of the non-visible area (210b) and / or the viewing of the wall area (101a) takes place by means of a mirror (400).

10. Escape sign luminaire according to one of the preceding claims, wherein the specific design (310a, 310b) is implemented by specific brightness values, and / or by specific color values, and / or by specific patterns, and / or by a QR code, and / or by a barcode, wherein preferably the respective type (V1, V2, V3) of the image sequence (300) is coded in distinction from the individual images of an image sequence (300).

11. Escape sign luminaire according to one of the preceding claims, wherein the display (200) is an OLED display, an LC display, a TFT-LC display, or an EINK display.

12. A method for checking an image sequence (300) displayed on a display (200) of an escape sign luminaire (10), wherein the escape sign luminaire (10) is designed according to one of claims 1 to 11, the method comprising the steps of: a) displaying the images of the respective image sequence (300) in their specified order in a looped reproduction on the display (200), wherein only the specific design (310a, 310b) of the control field (310) differs between images of the image sequence (300); b) detecting the specific design (310a, 310b) and / or its temporal change in the control field (310) of the displayed image sequence (300) by the sensor component (120); c) transmitting the detected data to the controller (110); d) evaluating the transmitted data by the controller (110) and determining the type (V1, V2, V3) of the image sequence (300) shown on the display (200).

13. A method for checking an image sequence (300) displayed on a display (200) of an escape sign luminaire (10) according to claim 12, wherein the method comprises the step of: e) transmitting the determined type (V1, V2, V3) of the image sequence (300) displayed on the display (200) to an external device by means of the interface (110) of the escape sign luminaire (10);.

14. Method for checking an image sequence (300) displayed on a display (200) of an escape sign luminaire (10) according to claim 12 or 13, wherein the method comprises the method step: f) comparing the determined type (V1, V2, V3) of the image sequence (300) displayed on the display (200) with a type specification known to the controller (110), wherein the controller (110) has preferably received the type specification from an external device by means of the interface (110) of the escape sign luminaire (10).

15. A method for checking an image sequence (300) displayed on a display (200) of an escape sign luminaire (10) according to claim 14, wherein the method comprises the step of: g) transmitting the result of the comparison of the determined type (V1, V2, V3) of the image sequence (300) displayed on the display (200) with the type specification to an external device via the interface (130).

Images