EP3886065A2 - Emergency sign light, escape route control system and suitable method for its operation - Google Patents

Abstract

An exit sign luminaire, which can be part of an escape route control system with several display images as an exit sign luminaire for dynamic escape route guidance, advantageously only has a single display level in which several elementary areas are arranged, these elementary areas being able to be controlled by group-forming driver units on the basis of received escape route indicators. In emergency lighting systems that are designed for dynamic escape route guidance, control data can be transmitted to such escape sign lights via control data tuples. B. between 20 control data tuples per second and 100 control data tuples per second must be transmitted. Nevertheless, a reliable, stable lighting situation can be produced by all escape sign luminaires of an emergency lighting system through which the aligned masses can be directed.

Description

The present invention deals with an escape sign luminaire with a self-illuminating display which, electronically controlled, can alternately display at least two different direction and / or path information.

In other words, the present invention deals with an escape sign luminaire according to the preamble of claim 1.

The present invention also deals with a communication method for switching a display of an escape sign luminaire, which is intended in particular for signposting various escape routes.

In other words, the present invention deals with a communication method according to the preamble of claim 17.

In addition, the present invention is concerned with a method for guiding escape routes through a corresponding system with at least two escape sign lights and a guidance system, the guidance system preferably being able to be brought into a data exchange connection with each of the exit sign lights via a bidirectional communication device.

In other words, the present invention is concerned with a method for operating a corresponding escape route control system, in which a corresponding escape sign luminaire is also to be operated, according to the preamble of claim 18.

Technical area

A luminaire that is intended for use as an escape sign luminaire can indicate to people via which escape route a certain location, e.g. B. a building should ideally be left in an emergency situation. This means that the exit sign luminaires must be clearly visible, even in poor lighting conditions. Escape sign luminaires are often installed in corridors or passageways, for example to help people flee from a source of danger, such as a fire, to decide which route is the safest route is to be taken, to decrease or to make it easier. The aim is that fleeing people do not lose valuable time in their escape due to a lack of orientation or due to their ignorance of the exact local conditions.

In order to ensure the shortest possible response times for people in emergency situations, numerous design features for escape sign luminaires are specified in the relevant standards. The requirements stipulated therein must be met by an escape sign luminaire so that it can be installed in a certain territory such as the Federal Republic of Germany. The standard DIN ISO 3864-1: 2012-06 specifies which graphic symbols and safety colors are to be used as a design basis for safety signs and safety markings. In addition, in an annex to this standard, a relationship between the size of a safety sign and the recognition distance, i.e. H. deals with the visual quality of graphic symbol elements. For the implementation of the colors, the ISO 3864-4: 2011 standard specifies which calorimetric and photometric properties materials of safety signs should have. ISO 3864-4: 2011 deals among other things. with the formation of contrast in external and internal lighting of safety signs, in which surfaces of different colors are combined with one another. Considerations about ametropia are also included here. In addition, various graphic designs and symbols for use in safety signs are specified in DIN ISO 3864-3: 2012-11, such as B. graphic templates that symbolize the human body or the shape of arrows that are intended to instruct people to move in a certain direction.

For some states or in some territories, however, standards that have been adopted from other jurisdictions, such as the USA, also apply. Such standards must be taken into account by the manufacturers of exit sign luminaires when designing an exit sign luminaire in addition to the other optical and aesthetic requirements. For example, in some territories standards stipulate that green areas must be present in an escape sign, whereas in other territories illuminated signs with a red color are preferred. Operators of large buildings also repeatedly express the wish, e.g. B. to have flexibility with larger gatherings of people to distribute them to different escape routes and to guide these people on different routes to safety, so that flows of people can be channeled according to the capacities of existing routes through suitable signage.

Nowadays it is also a regular requirement for exit sign luminaires that they work as energy-efficiently as possible. So it will be Requirements placed on escape sign luminaires that require special development efforts in order to be able to be reconciled with one another.

State of the art

Various technologies for displays are known from the specialist literature, which are fundamentally, at least in theory according to inter alia. should be suitable for signs or displays of exit sign luminaires. For example, in the magazine "Elektronik Industrie 6 - 2008" on pages 48 to 50 of the author Klaus Vogt, an employee of the company Data Modul AG in Munich, so-called active matrix OLEDs (eng .: organic light emitting diodes) and compared with other display technologies such as passive matrix OLEDs or TFT-LCD (thin-film-transistor liquid-crystal display). Accordingly, displays with a passive matrix have column and row drivers, with a colored picture element at their intersection, which may be equipped with subpixels that light up when the picture element is activated by applying an electrical voltage. In contrast, in an active matrix OLED, each subpixel has a thin-film transistor. This should be able to be controlled in a manner analogous to TFT technology, after which a pixel that is excited to glow is retained until the next corresponding pulse and emits light. This should not only enable a better contrast value compared to TFT-LC (D) displays; the contrast should also be given regardless of a changing viewing angle. In contrast to TFT displays, OLED displays do not require backlighting. As a result, such luminaires have a lower electrical power consumption and an improved energy balance. In addition, very fast switching times in the microsecond range should be possible with OLED technology, so that a viewer of an OLED luminaire should no longer really perceive the transition from a first display to a second display.

However, there are production-related challenges in particular for the provision of OLEDs, so that, as shown on the portal "elektroniknet.de" by the author Prof. Dr. Karl-Heinz Blankenbach published or posted on the Internet by Markus Haller on January 4th, 2018, other technologies, such as micro-LEDs or quantum dots, may also be of interest for the implementation of illuminated displays that are specifically intended for the consumer market . Both technologies work with a similar layer principle as the OLEDs, but consist of inorganic materials that promise longer lifetimes than the OLEDs. The technology presented is likely to be related to their Circuit complexity can be disadvantageous, because four to five TFTs are typically required to control a subpixel.

It is again confirmed that a display technology that is optimal in all aspects of an escape sign luminaire has obviously not yet been found.

This means that there are various display technologies based on individual light elements such as OLEDs, micro-LEDs, quantum dots, TFTs, etc., in which a larger number of light elements have to be controlled in order to produce an image or a pictogram.

In this situation, which is not given by the emergency luminaire that is not perfect in every respect, building equipment suppliers are nevertheless increasing the demand for dynamic escape route luminaires, through which escape route guidance may be possible.

If previously widespread display technologies for exit sign luminaires are to be traced using a printed document, z. B. the DE 101 49 860 A1 (Applicant: AXSYN GmbH i. Ins .; Disclosure date: April 24, 2003), which justifies a dynamically managed system with the fact that the conception of the front surface as an easy-to-open removable frame allows a user to design his graphics or symbols using standard foils. Even several decades ago, such lights were equipped with network connections such as LON.

In the WO 2014/175 479 A1 (Applicant: UB Link Co. Ltd; publication date: 10/30/2014) a dynamic pictogram display device for an "Exit" light is described. The display should be realized by a structured LCD. In particular, STN-LCDs (super-twisted-nematic liquid crystal) should be used in which the liquid crystal molecules are twisted with one another. TFT-LCDs are also written on. The light should be guided with these LCDs. A corresponding flat panel monitor is arranged in a housing together with a backlighting unit. A control unit is used to control the display in order to bring static or dynamic glyphs to the display. The glyphs to be displayed are stored in a readable memory from which the data required for the display can be called up in an operating state. In a dynamic mode, a sequence of consecutive glyphs is displayed. Thus, for example, in an operating mode, a directional display can be displayed statically next to a person. But animations are also possible in this way. Light in the backlight unit can e.g. B. can be generated with the help of LEDs, which should glow in the primary colors red, yellow and blue (RGB) and which are also operated dynamically should be. Because the relevant standards stipulate that escape routes are to be signposted with wordless symbols, the glyph-based technology should be the WO 2014/175 479 A1 not be a technology that can be transferred to exit sign luminaires.

the EP 2 902 995 A1 (Applicant: CEAG Notlichtsysteme GmbH; Disclosure date: 08/05/2015) presents an escape sign luminaire that has an LED arrow matrix and, in addition to a direction indicator designed in this way, should be able to represent a person walking. Although the EP 2 902 995 A1 claims that such displays with two locking areas are in accordance with the standard, the pictogram should not be permitted, because an arrow pointing in the opposite direction to the symbolically depicted fleeing person should, in accordance with DIN ISO 3864-1, be inherently contradictory for an escape sign luminaire The escape route symbol. This display designed in this way is a prerequisite for the EP 2 902 995 A1 luminaire technology described can be implemented at all.

the EP 2 958 088 A1 (Applicant: Cooper Technologies Company; date of publication: 23.12.2015) presents another arrow display, which is divided into segments, which is also unlikely to result in an escape sign luminaire that complies with the standards.

the DE 10 2015 218 161 A1 (Applicant: FISCHER Akkumulatorentechnik GmbH; disclosure date: 23.03.2017) provides based on their Figure 1 Components of an emergency sign light before, which should include a memory, an external sensor and a control device as well as an accumulator. In the end, describes the DE 10 2015 218 161 A1 the long-known self-contained luminaires, equipped with a sensor for communication with this one battery-supported emergency sign luminaire by the sensor sending a signal, e.g. B. after a detection of smoke, can report to the control device. The display of the emergency light should be an illuminated, backlit or backlit display, for which an emergency battery should supply the energy for the lighting in the event of failure of the voltage supply network supplying the display. This should be waived if the emergency sign light has a display that is an electronic paper (e-paper, e-ink). If one sensor is allowed to control its own luminaire at will, escape routes that do not directly lead refugees into security areas via the shortest possible route should almost inevitably be preprogrammed.

the DE 20 2016 102 969 U1 (Owner: Zumtobel Lighting GmbH; Date of registration: September 6th, 2017) suggests using PDLC foils for luminaires. If the supply voltage breaks down, the crystals in an LC light lose their alignment and display becomes opaque. An escape sign can be made visible through a PDLC film cut to a pictogram. As long as voltage is applied to the luminaire, the PDLC film can become (almost) invisible due to the transparency of the display. Such a luminaire looks tempting due to its emergency operation properties, but should not offer sufficient, standard-compliant brightness and contrast and thus visibility.

Of the DE 10 2012 100 348 A1 (Applicant: PER Flucht- und Rettungsleitsystem GmbH; Disclosure date: July 18, 2013) According to the luminaires in dynamic escape and rescue control systems have reliability problems, so that the DE 10 2012 100 348 A1 proposes to compare actual image information with target image information with the aid of a camera in the case of display devices that are intended to display changing image information and to determine deviations.

the DE 20 2019 106 337 U1 (Owner: Zumtobel Lighting GmbH; Date of entry: November 27, 2019) deals with a dynamic escape route luminaire, which is also known as an adaptive escape route luminaire. The escape route display system requires a control unit so that completely or partially stored images of dynamic displays appear by means of a control signal on displays of exit sign luminaires. How the control system should actually work is that DE 20 2019 106 337 U1 not to be found.

Task

It would be beneficial to know a concept for an escape sign luminaire that could possibly be used in several territories, regardless of the fact that standards differing from one another exist in these territories, e.g. B. in terms of brightness, in terms of color or in terms of the pictogram design, the same escape sign luminaire can be used for dynamic escape route guidance.

It is particularly advantageous here if all exit sign luminaires can (almost) simultaneously indicate a change in the escape route. If the luminaire is dependent on certain crystal properties, which only occur after a voltage has ceased, or on special shutters, then such escape route control systems have an inherent delay.

Ideally, the phases in which the lights are indefinite, possibly even themselves Provide mutually contradicting direction indicators and information as briefly as possible; It could also be said that it is a matter of switching phases that are no longer noticeable for humans (i.e. in the millisecond range).

In other words, a dynamic escape sign luminaire that is part of an escape route control system integrated into a control system should, if possible, show the correct, intended indication on its display or displays at all times. Uncontrolled states and transitional situations should only be perceptible to a very small extent, if at all.

Description of the invention

The present invention is achieved by an escape sign luminaire according to claim 1 and a method for guiding escape routes according to claim 17. The object according to the invention is also achieved by a method for its operation according to claim 18. Advantageous further developments can be found in the dependent claims.

Escape sign luminaires are usually fixed or fixed, for example on a wall of a building, in order to inter alia. signpost an escape route. A special escape sign luminaire holder can be provided for the assembly, which holds the escape sign luminaire.

An escape sign luminaire can advantageously react to different situations and dangerous situations. For this purpose, an escape sign luminaire can include a display on which display images are shown depending on the situation or the hazard situation (dynamic escape route guidance).

An escape sign luminaire comprises at least one optical display. In the display, which can be shown on a display, different, in particular color-distinguishable, light fields can be generated. The display has lighting means that are stimulated to emit light by the supply of electrical current. Various methods of generating light are well known. It can therefore also be said that the display is self-illuminating when energy, in particular electrical current, is supplied. In other words, excitations of electronic solid state states are generated in a self-illuminating display under the influence of electrical current, through the decay of which the excitation state is converted into light or photons. The light or the photons are emitted by the display. In particular, there is no passive afterglow without energy supply in the lamp as possible, which z. B. is known as phosphorescence, because this would extend possible switching times for a change of display images.

The light emitted by the self-illuminating display can be produced in various ways. One possibility is the arrangement of one or more lamps, e.g. B. LEDs, at one point of the exit sign luminaire from which front lighting can be generated. Depending on the display technology, the light for the self-illuminating display can also be generated by one or more backlit lamps.

The exit sign luminaire can be controlled electronically. A display can be combined from given display images (in the sense of (partial) display images). A first display image can be an arrow. A second display image can be a schematically depicted body of a person, the z. B. depicts a moment in a movement (e.g. sequence of movements: "fleeing / running person"). A third display image can be a combination of a first display image and a second display image. Thus, different display images can be formed, e.g. B. to symbolize a direction of movement in an escape route. A first escape route display image can point in a first direction. A second escape route display image can point in a second direction. It is also possible, e.g. B. by a bent direction arrow to show a route in a display more easily understandable. Another example of a route is a road blocking sign. By combining individual (partial) display images, an (overall) display image is formed which, however, is advantageously not formed by different display levels in space with pre-arrangement and spatial resetting, but manages with a single display level. The aim of composing the (partial) display images to form the (overall) display image is a standard-compliant (standard-compliant), clearly defined escape route symbol.

Display images can be selected by controlling the escape sign luminaire with a preferably electronic signal. Display images are radiated light images. The display is switchable. It can also be said that the display is an active display. Different display images can be displayed one after the other. Directional and / or route information can be represented graphically or combined with one another in one image. There are at least two display images in the luminaire or can be displayed by the luminaire. Two display images can be in different, e.g. B. each other point in opposite directions.

An escape route indicator is used to show a person which route is suitable for escape or for leaving a building or structure. If several escape routes come into consideration, it is particularly advantageous if a correct directional display composed of several escape sign lights can also be provided for each escape route. With the corresponding escape sign luminaire, it is possible to use a display of the escape sign luminaire to provide information about an escape route that is preferably to be selected. This information can be made available as direction information. However, the information can also be time-related information. Part of the information can also be the information as to whether a way to escape is free or not. It is particularly advantageous if there are clearly linked escape route indicators through which a very specific pictogram is selected for the individual escape route indicators. The escape sign luminaire receives an escape route indicator and thereby causes a specific pictogram to be displayed. The display for displaying at least one pictogram allows the pictogram to appear if the escape route indicator received from the escape sign luminaire is the one that corresponds to the pictogram.

In general, it can be said that a pictogram has areas that are shaped as symbols, like abstract figures. Different surfaces can emit different colored light, i. H. Light from different wavelength ranges. Surfaces can also be distinguished by colored light, such as green light or red light, and white light. The surfaces can be next to each other.

Advantageously, pictograms are generally understandable, regardless of the language that a viewer speaks. With the help of self-luminous surfaces z. B. a representation of different body positions or postures possible.

The display can be formed by an ePaper display, which is also known under the name eInk display (or e-Ink display). Other possible displays are a TFT display or an LC display (LCD) or an OLED-based display. Micro-LED displays or quantum dot displays can also be considered as further suitable displays. ePaper displays have the advantage that they reflect the ambient light and make a display visible even though there is no electrical current.

The display images are advantageously generated in a single display plane. Overlaying and switching through different levels can thus be avoided. at The use of a single representation level also eliminates distortions in the visual representation due to overlay effects. The display reacts more accurately and faster to controls.

In an advantageous embodiment, the representation plane has a layer thickness of less than 1 mm. The internal structure of the representation level should initially be put aside in the considerations. The respective display technology is included here. The internal structure depends on the display technology of the exit sign luminaire. The display level itself can again be produced or constructed from several layers.

A display is divided into elementary areas. The display is divided by the elementary areas. These elementary areas can be so small that they are individual pixels. These elementary surfaces can also be graphic elements such as projections of forms of a human body or parts of it (in particular symbolically depicted fleeing people, e.g. with a round head, a torso and with arms and legs in a movement representation). A display image can be shown on the display by activating the display. By combining different self-illuminating elementary surfaces, it is possible to display different display images.

An individual display image can also be specified in coded form, e.g. B. by electronic data. Based on this data, a composition of display images on a display, e.g. B. using driver signals, feasible. A display image segmented in this way can be composed of various elementary areas. An elementary area can be available for different display images. A first display image is obtained by combining different elementary areas. A second display image can result by combining a part of the elementary areas of the first display image and by adding other elementary areas. With this technology, it has been shown that segmenting the display to generate different display images in approx. 80 to 100 elementary areas creates a wide variety of options, in particular almost all conceivable symbols of escape sign lights. In many cases it is sufficient if a display, e.g. B. a rectangular area or a display is divided into 80 to 100 elementary areas in order to be able to be used for different display images.

At a certain installation location of the escape sign luminaire, it is sufficient if only a suitable selection of display images is available in the luminaire, which are shown on the display upon request, e.g. B. be brought to the display by an electronic control command can. A display image can be created by combining several display elements or elementary areas in terms of control technology. At least two display elements are preferably present which have a different area size for light emission. The smallest area size that can be provided for light emission is also referred to as a display point.

The display elements can be controlled by a driver unit of the escape sign luminaire. The driver unit is provided for the control of elementary areas for displaying the area areas. The driver unit can be installed in an area of the escape sign luminaire or, if the escape sign luminaire has a housing, in its housing. The driver unit should be arranged in such a way that the visibility of the display is not impaired. A favorable area for mounting the driver unit is a holding area assigned to the exit sign luminaire holder, preferably in an edge area of the display. The driver unit is connected to the display, e.g. B. electrically connected via a data line. The driver unit can also be designed as a software module that z. B. on a graphics processor of the escape sign controller (escape sign arithmetic unit or a display driver stage) is implemented. The supply of the display with electrical energy can be regulated by the driver unit.

It is advantageous here if the driver unit combines the elementary areas into groups. The group formation can be carried out in an escape sign arithmetic unit, but alternatively also by a display driver stage. An escape sign arithmetic unit compiles which elementary areas are to be combined to form a group.

An advantageous driver unit can be integrated into an escape sign controller, which in particular coordinates all control and monitoring tasks of the escape sign luminaire. An escape sign controller allows switching from a first display image to a second display image, each display image producing an escape sign that is emitted by the escape sign luminaire. Another example of a group-forming driver unit is a display driver stage. A display driver stage makes it possible to compose display images from individual display elements by programming. In other words, a display driver stage can offer greater variability in the design of display images than an escape sign controller. Programming can e.g. B. via an escape sign controller or via an external, in particular common controller of all escape sign lights in a lighting system.

A display of an escape sign luminaire can be switched on, off and toggle based on a communication intended for it. Regarding the method of how this display of an escape sign luminaire is switched, e.g. B. is changed with regard to its display, the communication to the escape sign luminaire also belongs.

The exit sign luminaire has a memory, e.g. B. an overwritable memory that can store non-volatile data, but can also overwrite them again on special write commands. The memory stores data for individual display images. The data is made available from the memory that is required for the control and thus for switching a specific display image on the display.

The display is designed in such a way that it can show several display images in one plane. The display is segmented. The display is a display showing several display images on one level.

Which image is shown on the display is selected depending on an escape route identifier. The escape route identifier transmitted to the escape sign luminaire is responsible for the selection of the display image. It is particularly advantageous here if the escape route identifier is received from the escape sign luminaire via a communication interface. The exit sign luminaire has a connection for a data bus on which an escape route identifier can be transmitted. The escape route identifier is received from the escape sign luminaire, then the escape sign luminaire shows the display image that matches the escape route identifier or is part of the signage for the associated escape route.

Part of an escape route control system is an emergency lighting system that includes at least two escape sign luminaires. A control system is also part of the escape route control system. A building security system, an emergency lighting system or a remote monitoring system can be used as the control system. A building monitoring system through which conditions in the building can be monitored, e.g. B. by sensors and / or measuring points, can be part of the control system that determines which escape route is currently the most suitable escape route.

The escape sign lights preferably each have a data receiving module. The control system is particularly equipped with a data transmission module and a data reception module. If the exit sign luminaires also have a data transmission module, control data can be forwarded serially from the control system via the escape sign luminaires. It is particularly advantageous if each of the exit sign lights is equipped with a transceiver. The transceiver can be part of an interface module. A control system, which in particular has a transceiver, can communicate with escape sign lights.

Each escape sign luminaire can be addressed individually in digital form by the control system, in particular with the aid of an escape sign luminaire address. The technical equipment of the exit sign luminaire allows feedback, e.g. B. via the luminaire status or the current operating status, can be given to the control system. Equipping the guidance system and exit sign luminaires with transceivers can form a bidirectional communication system. However, bidirectional communication can also, preferably additionally, take place via data lines and / or via a power supply network, which can connect at least some exit sign lights and the control system to one another. Communication takes place with the help of electrical frequencies or with the help of electromagnetic signals such as optical pulses or radio frequencies. A permanent data exchange connection can be implemented via a two-channel communication device. A bidirectional communication can also be sequential, i.e. H. take place as a transmission of request (s) and retransmission of response (s). In other words, a data bus is set up between the control system and all exit sign luminaires, via which communication takes place.

The control system can generate control data tuples for controlling the exit sign luminaires. The generation of one or more control data tuples can e.g. B. be initiated by a keyboard entry in the control system. The control system preferably has a control computer which can generate control data tuples. The control data tuple reaches the driver unit of the exit sign luminaire. The driver unit is prompted by control data to form groups of elementary areas to be controlled on a display. The driver unit supplies these groups with energy or current, so that selected or addressed elementary surfaces are activated to emit light. The elementary surfaces are self-luminous elementary surfaces; The control data are preferably command data which are combined to form the control data tuple and transmitted to the driver unit, causing the processing of program routines held in the driver unit or in the escape sign calculating unit. In other words, the control system does not need to have any knowledge of structuring the display with elementary surfaces. An unambiguous assignment of the control data in the control data tuple to a very specific escape sign luminaire can be made with an addressing contained in the control data tuple be ensured, e.g. B. to update pictograms or symbols. Addressing can be a combination of numbers and / or letters. In order to ensure a particularly high level of transmission security, an address can also contain special characters. For the greatest possible transmission security, the control system sends control data tuples at a clock rate. Repeated sending of control data tuples ensures that brief disturbances and disturbance phases have no influence on the escape route control system. If the communication is carried out using escape route indicators, each individual luminaire does not have to be addressed individually. Ideally, the escape sign luminaires are designed in such a way that each of the escape sign luminaires designed in this way reacts to individual addresses as well as to escape route indicators that can be processed by them.

With a cycle rate of more than 20 control data tuples per second, high switching frequencies of the escape sign luminaires in the escape route control system or very short switching times can be achieved. This enables z. B. can be reacted to immediately (with respect to a reaction time) to changes in a route network in order to indicate the most favorable escape route. By limiting it to less than 100 control data tuples per second, larger data packets can also be transmitted as control data tuples to the exit sign luminaires. For example, it is possible that a control data tuple contains the control signals for all exit sign lights. These control signals are implemented individually after receipt by each escape sign luminaire according to their addressing or their escape route indicator. The amount of data to be transmitted in a control data tuple can be significantly reduced in that certain display modes are transmitted to the escape sign luminaires. The control system thus makes a pre-selection based on the available escape route indicators and ensures that the correct image is displayed.

The display modes or which elementary areas are to be controlled in order to generate a specific display are held in a memory unit of a respective escape sign luminaire. The driver unit or the escape sign luminaire computing unit has access to this memory unit. The memory unit is preferably a rewritable electronic or magnetic memory. Magnetic memories are particularly energy-saving. Display modes can be stored as a group of control configurations in the memory unit. Such a group can include four or five display modes, for example. When a display mode is static, one can also speak of a display image. A dynamic display mode can e.g. B. a flashing signal, generated by selected elementary surfaces on the display, to display. In one special In an advantageous rescue system, the displays of the escape sign lights included in the system can be switched at least in groups at the same time. A group of displays can be arranged or mounted in a building area or building section (e.g. fire section). By switching the exit sign luminaires at the same time, it is ensured that the existing exit sign luminaires, e.g. B. due to reception disturbances, no contradicting information is displayed. Before a switching process from a first display mode to a second display mode, an acknowledgment of receipt is preferably sent from the escape sign lights to the control system. Due to such feedback, the escape route control system saves a large number of checks in the control system.

Advantageous refinements and developments are set out below which, viewed individually, both individually and in combination, can likewise reveal inventive aspects.

It is advantageous if there is not only one display per exit sign luminaire, but rather if an exit sign luminaire is implemented with several displays. Larger areas of the exit sign luminaire can be used as display areas. If the exit sign luminaire has several such large areas, e.g. B. two large areas, several displays, such as a first display and a second display, can be part of the escape sign luminaire.

Many viewers consider frames to be visually attractive. Another design school prefers to have frameless items installed in a building. If a display is to be implemented without a frame, special requirements must be placed on the thickness of the exit sign luminaire.

Based on at least one predetermined data set, a driver unit can form groups of display elements or combine individual, preferably adjacent, display elements into groups. The display elements of a first group can, for. B. be arranged in an arrow shape. Display elements of the first group can be part of a second group or of further groups of display elements which can be activated to provide a second display image or further display images. It is also possible to combine a first group of display elements of a first display image and a second group of display elements in a display image, such as a third display image, and to generate from this in particular an overlay-free full image of the display. In this way, elementary surfaces can be connected in such a way that Information provided by the display, e.g. B. Symbols and areas of pictograms. In order not to allow display images that are contrary to standardization to light up, even if only briefly, it is advantageous if a group-forming driver unit carries out a common, similar and, in particular, simultaneous control of several elementary surfaces.

It is particularly advantageous if conductor tracks, which lead from a driver unit to light emission influencing elements of a display of the escape sign luminaire, simultaneously operate several such light emission influencing elements (e.g. shutter, filter, diaphragms, brightness regulating circuits such as a feedback current control).

The escape sign luminaire should be equipped, in particular via an interface provided for this purpose, with at least one sensor, such as a smoke sensor or a person presence detection sensor, so that it is distributed throughout the building, i. H. on site, special dangerous situations can be determined, recognized or detected. It is advantageous if there is at least one sensor interface via which a sensor can be connected. If the sensor interface comprises a sensor connection or an electromagnetically operating sensor data receiver, data from a sensor mounted in a room in which the exit sign luminaire is installed can be measured via the exit sign luminaire. In one embodiment, a sensor signal can be fed (directly) or (indirectly) to the driver unit. The driver unit comprises a program routine in a data processor, in an escape sign light arithmetic unit or in a controller which selects at least one elementary group area on the basis of the sensor signal. The driver unit can also be designed in such a way that it uses a motion sensor signal to time-limit self-luminous pixels, e.g. B. limited, controls.

The exit sign luminaire advantageously has at least one communication interface. A communication interface can be configured as a relay contact, as a data line bus, as a carrier frequency module, in particular a supply line-bound, or as an electromagnetic transmission unit for transmitting sensor data and / or elementary area data and / or area group data. The communication interface can be intended for communication with a control system. The communication can also be provided from the exit sign luminaire to at least one other exit sign luminaire, e.g. B. as a token ring.

An escape sign luminaire that has a particularly high utility value is an escape sign luminaire that includes at least two displays. Such escape sign lights can be installed in places that can be seen from different sides, e.g. B. on landings. Escape sign luminaires of this type should certainly not display different escape route signage at one and the same time. It should not be the case that the right display or the right display emits information that is contradictory to the left display or the left display. The driver unit for controlling at least one first elementary area group on the first display should be designed in such a way that it is also designed for controlling at least one second elementary area group on the second display. If the angle between the displays is less than 140 ° (in relation to an interior angle), different information would lead to particular confusion.

The escape sign luminaire, which has display images that can be controlled one after the other and are composed of self-illuminating elementary surfaces, is intended to transmit or provide information. The display and the control are particularly good, solid and reliable when the surface areas are of the same size. The exit sign luminaire should be designed in such a way that it covers areas of the same size.

In an advantageous development, the escape sign luminaire can have a selection device. Such a selection device can, for. B. adjustable by a control signal via the communication interface and / or adjustable by supplying an analog control voltage via a cable connection and / or configured manually adjustable. On the basis of the selection device, surface areas or groups of surface areas that can be controlled by the driver unit can then be predetermined. What can be displayed can be specified using the selection device. The surface areas can be stored in the form of surface area data in a storage unit of the escape sign luminaire. The surface area data determine which surface areas in a first display and which surface areas in a second display emit light or light up or are particularly highlighted.

The escape sign luminaire is even safer in its operation and thus the entire escape route control system if there is a failover in the group-forming driver unit or a fail-safe belongs to the group-forming driver unit. Failure protection can be implemented using a non-volatile memory such as an EEPROM (in the sense of a first part of a "fail-safe" function).

The failover can also include a reset that is responsible for taking on a safe or at least predetermined operating state. After the end of a power failure, it can be predetermined which operating state is to be assumed or which escape route indicator is to appear on the display equivalent to which indicator. This state can be referred to as the basic setting. The failover can also be designed in such a way that it brings about a basic setting of the escape sign luminaire in the event of a control command reception fault. The exit sign luminaire assumes a basic setting if one of the special cases should have occurred, such as B. a power failure. The basic setting to be taken also ensures a special operating state in the group-forming driver unit (in the sense of a second part of a "fail-safe" function).

The escape sign luminaire advantageously has a decoding device. The decoding device is there to decode an individual address and / or group address assigned to the exit sign luminaire. The address can be stored in a non-volatile, preferably programmable, memory. The address can be used, for example. B. individually address the escape sign luminaire, in particular in addition. This makes it possible, in addition to scenarios or the detection of escape route indications or individual escape route indicators, to specifically address just one escape sign luminaire. An escape sign luminaire can e.g. B. can be controlled to save a new display image or pictogram, to set an escape sign luminaire to a different escape route scenario (e.g. due to renovation work on the building) or to carry out individual tests in accordance with the standard. At least one address part for decrypting received commands can be decrypted in the decoding device by a decoding routine, in particular for presetting operating parameters of the driver unit.

In a further development, the exit sign luminaire is designed for processing a data tuple. The data tuple can e.g. B. come from a control system. The data tuple is transmitted to the exit sign luminaire. The data tuple can e.g. B. be designed so that it contains at least one address and at least one escape route indicator identifier. The data tuple can be intended for a driver unit in one of the exit sign luminaires.

The escape sign luminaire can be connected to its own rechargeable battery that exclusively supplies it. The accumulator is ideally a rechargeable accumulator. In one embodiment, the escape sign luminaire can be equipped with an accumulator be equipped in their housing.

In addition to any other tasks, the accumulator, if it is present in an exit sign luminaire or assigned to it, is responsible for supplying the driver unit with power in the event of an external power supply failure.

If there is an emergency program stored in the driver unit by means of which an emergency display is set, in particular in order to generate an emergency display on the display, the accumulator and the accumulator control belonging to the accumulator can include a current control. All power consumers of the escape sign luminaire that are not required to maintain the emergency display can, for. B. be designed to be switched off. If the exit sign luminaire has entered its emergency program, the power consumption can be reduced and the units assigned to the emergency program, e.g. B. a display according to a basic setting will continue to operate.

The driver unit draws - in a favorable embodiment of the escape sign luminaire - electrical energy from an electrical energy store, such as. B. from an accumulator when no mains power is available. The energy store can be a further part of the exit sign luminaire.

If the escape sign luminaire has at least one display that is a TFT display or LC display, this display can be covered with a micro-lamella film. Rays of light from the display can be passed through the micro-lamellar film. The light should radiate away from the display or be passed through in a radiating manner.

If the micro-lamellar film is a direction-dependent display device, by means of which a direction of propagation of the light rays can be influenced, direction-related displays can be specified. Should z. B. because of the display people flee to the left, because of the micro-lamellar film, people from the right as the main addressees of the display can see better where the escape route is going than people who walk past the escape sign light against the escape route. This also allows switching delays and switching effects to be reduced.

In one embodiment, the escape sign luminaire can work together with several escape route indicators. The types of escape route indicators can be of different nature. It is thus possible to provide several optical escape route indicators. It is also possible to use at least one escape route indicator for acoustic escape route guidance from the To make the escape sign luminaire recognized. Such an escape sign luminaire can be designed for an optical projection using some escape route indicators. At least one escape route indicator produces an acoustic signal, e.g. B. with the help of a modulatable tone generator or loudspeaker. These communication units can be controlled by the driver unit. If an emergency program is run, z. B. the modulatable tone generator can be switched off while the display remains ready for use.

In an embodiment with a sensor input or a connected sensor, the escape sign luminaire measures information. The information originating from the assigned sensors is measured. The information can be or become part of a luminaire data tuple for transmission to the control system. The transmission to the control system can, for. B. take place in response to a receipt of a first control data tuple.

It is then possible for the control system to extract an address from the luminaire data tuple. A control algorithm of the control system generates a second control data tuple based on the information from the exit sign luminaire. This happens in those cases in which an evaluation of the information on the basis of a comparison reveals a need for a further control data tuple.

A check is preferably carried out to determine whether the information lies in a value range of a validity interval.

The method for escape route guidance can use an initialization module if such a module should be available in a further developed escape sign luminaire. From such an initialization module, such as an operating initialization routine of the control system, at least one set of operating data can be generated or obtained for a change in the operating state.

• eine Geräteadresse,
• eine Grundeinstellung,
• einen Notfalldatensatz,
• einen Flächenbereichsdatensatz und/oder
• ein Satz von Fluchtwegsindikatorendaten, insbesondere mit Fluchtwegsindikatorenkennungen, wie Anzeigemodi.

The operating data include at least one data record in which one of the following data records can be included in part or in full:

• a device address,
• a basic setting
• an emergency record,
• an area record and / or
• a set of escape route indicator data, in particular with escape route indicator identifiers, like display modes.

Ideally, the operating data are stored in a rewritable electronic memory of the escape sign luminaire. These are preferably held there for selective retrieval.

A method for guiding escape routes and operating an escape sign luminaire can be used both for operating a single escape sign luminaire and for operating several escape sign luminaires in an escape sign system. One or more exit sign lights are controlled by a control system. The control system provides control data. The control data are used to operate at least one escape sign luminaire, more precisely to initiate changes in the operating status. The control data can also be referred to as operating data. The operating states that can be switched between are self-illuminating states. In each state, a display image specific to the state is emitted.

The control system includes an initialization module. The initialization module can be present as a software module, such as an operating initialization routine in a CPU of the control system. There is at least one set of operating data for a change in the operating state. The operating data can be assigned to the escape sign luminaire via a communication device. A set of operational data can contain several data fields. One possible data field is a device address. A device address can also serve as an encryption code for further data provided by the control system. A fail-safe routine can also be transmitted as operating data from the control system to the escape sign luminaire. The fail-safe routine gives the escape sign luminaire a basic setting which the escape sign luminaire must adopt in the event of communication disruptions or the failure of the control system (in the sense of a "fail-safe" status or a (further) "fail-safe" function). It is also possible for operating data to send an emergency program for an emergency display to the escape sign luminaire or luminaires. The escape sign luminaire can be specified via an emergency program, as in the case of a low charge state of a battery an emergency display can be provided for as long as possible by z. B. a power saving mode is driven in the escape sign luminaire. A set of operational data can also include area data for display images. It is possible to compose a pictogram display from groups of area data. A set of escape route indicator data can also be included in the operational data. A set of Escape route indicator data is preferably identified by an escape route indicator identifier. There is thus a one-to-one association between the escape route indicator and identifier and the escape route indicator data after a set of operating data has been transmitted in the respective escape sign luminaire. Such display modes are then by sending escape route indicator IDs from the control system to the escape sign luminaire z. B. can be called up via a driver unit for display on the display. A data processor of the exit sign luminaire, which can also be briefly referred to as the exit sign luminaire processor, is used to evaluate the operating data received in the exit sign luminaire and, if necessary, to retrieve data selectively stored in the exit sign luminaire, such as escape route indicator data, and to convert it into display data. This allows the data traffic required to operate one or more exit sign luminaires to be thinned out considerably.

A "fail-safe" state in every escape sign luminaire can be, for. B. pivot to the last viewed as acceptable display or the corresponding display image. If communication fails in the escape route control system, z. B. swivel the "fail-safe" state to the last state and maintain it. The indication that should be emitted by an escape sign luminaire before the disruption or breakdown of communication is maintained during the communication disruption. In an alternative embodiment variant, the escape sign luminaire can also adopt its own default state ("faulty value state") (which is kept as such).

The escape route control procedure uses the group-forming driver unit of the escape sign luminaire. A display image is established on the basis of the operating data from the electronic memory.

The method for escape route guidance can be a function of information from one of the sensors, for. B. a sensor that is connected to an exit sign luminaire, determine the display image of the exit sign luminaire. In particular, the display image can be selected by a calculation in the escape sign calculation unit.

The combinations and exemplary embodiments presented above can also be viewed in numerous other connections and combinations.

An escape sign luminaire, which can be part of an escape route control system as an escape sign luminaire for dynamic escape route control due to several display images that can be displayed by it, advantageously has only a single one Representation plane in which several elementary areas are arranged, these elementary areas being able to be controlled by group-forming driver units on the basis of received escape route indicators. In emergency lighting systems that are designed for dynamic escape route guidance, control data can be transmitted to such escape sign lights via control data tuples. B. between 20 control data tuples per second and 100 control data tuples per second must be transmitted. Nevertheless, a reliable, stable lighting situation can be produced by all escape sign luminaires of an emergency lighting system through which the aligned masses can be directed.

In addition, the display can be activated at a time interval for light output specified by a clock generator.

The escape sign luminaire can provide different display modes, e.g. B. can be selected by means of the escape sign light transmitted control commands. In a static display mode, the display emits synchronous light from all activated display elements. In a dynamic display mode, there is a transition from a first display image to a second display image. In particular, a point in time of a display image change can be specified via the driver unit.

By controlling several elementary areas of a display by a group-forming driver unit, particularly short switching times, i.e. H. a very short "response" time can be achieved. One driver unit controls several elementary surfaces at the same time. There is no time delay between elementary surfaces. Advertisements that are not in accordance with the standard do not appear (not even as an intermediate image). The lights can switch from one display to another in just a few milliseconds.

The escape route control system with several escape sign luminaires of the type described above is not limited to a controllability based on an electronically transmitted escape route indicator so that an escape sign controller can control and monitor the escape sign luminaire (or the escape sign luminaire, of which the escape sign controller is a part) operates a display selected between several displays in order to display one of several available escape routes, but advantageously there is bidirectional communication, i.e. duplex communication, between each of the escape sign lights and the guidance system.

It is a question of the structure of the overall system of the escape route control system, whether there is an emergency lighting center between the control system to control and monitor (in the sense of a regulation) all exit sign luminaires or whether there is no further communication device between the control system and the exit sign luminaires (as a communication layer ) is available so that the control system can communicate directly with the exit sign luminaires.

During many operating phases of the escape route control system, it is sufficient for individual escape route indicators to be transmitted. In this case, one can also speak of unidirectional communication.

The communication path or the communication path can be designed in such a way that communication takes place between several devices and components. Communication can take place from a sensor to the control system or to the emergency lighting center. Communication to the escape sign luminaires for dynamic escape route display can then take place from the control system or from the emergency lighting center (by means of an escape route indicator). A response from the individual exit sign luminaires to the control system or to the emergency lighting center in the sense of a feedback or in the sense of a control circuit takes place.

In this way, by designing the communication as part of a control loop, in particular if, to clarify liability in the event of an accident as a result of an incorrect escape route display, the focus is on finding the cause and also if notification in the event of an error appears necessary to ensure the function of the system, it is possible that the unit defining the escape route (e.g. the control system or e.g. the emergency lighting control center) receives feedback as to whether the selected escape route has actually been set (and ideally is (has been) displayed). If there is no feedback from individual luminaires, the (control) unit defining the escape route (e.g. the control system or e.g. the emergency lighting center) can use a first alternative with an error message and a second alternative by setting an alternative React escape route (other escape route indicator). In this way, the (presumably) faulty escape sign luminaire can be bypassed.

If at least one interface is duplex-capable in an escape sign luminaire (capable of bidirectional communication; if there is therefore bidirectional communication between the escape sign luminaire and, for example, the control system), further configurations are possible.

The communication of the escape sign luminaire can be configured analogously in at least one direction, e.g. B. by a relay contact or by a signal voltage.

The communication via an interface of the escape sign luminaire can take place digitally and preferably encrypted in at least one direction. Thanks to encryption, increased security and less risk of compromise are guaranteed.

The escape sign luminaire can document the escape route indicators received from the control system and the data tuples sent back to the control system with a date and a time stamp in one of the (ideally several) memories of the escape sign luminaire.

Ideally, at least one interface is designed in such a way that the guidance system can query (experience) the escape sign actually displayed by the display from the escape sign luminaire through the interface.

In addition, it would be good if the guidance system could query (experience) from the escape sign luminaire the escape signs that can be shown (i.e. available) by the display through the interface.

As already mentioned above, the exit sign luminaire can be designed in such a way that after receiving an escape route indicator, according to which the exit sign luminaire should display a certain display image, it acknowledges this escape route indicator via feedback to the control system.

In addition, the escape sign luminaire can also be designed (additionally or alternatively) in such a way that, after receiving an escape route indicator to display a certain display image and after switching to this display image, it gives the control system feedback that the switchover has taken place.

The safety of the entire system is further increased if an escape sign luminaire can give the control system a feedback if a switch to a certain display image was not (successfully) possible.

It becomes even safer if the exit sign luminaire monitors communication with the control system and reports this locally in the event of a failure or communication disruption (e.g. with a status display, e.g. by means of an LED).

This form of monitoring communication can also include the escape sign luminaire documenting this state with a (current) date and a (current) time stamp in a memory of the escape sign luminaire in the event of failure or communication disruptions.

In addition, it can be provided that the exit sign luminaire monitors communication with the control system and automatically assumes a well-defined state (in the sense of a (further) "default state") in the event of failure or disruption of communication.

It is advantageous if the escape sign luminaire reports the event that has occurred (“restart”, “reset” or the like) to the control system in the event of a restart or reset of the escape sign luminaire, in particular the escape sign controller. In such a case, it is then again possible to retransmit the most recently transmitted escape route indicator for setting the desired display image, in particular to transmit it from the control unit (e.g. from the control system).

As mentioned earlier, a corresponding escape sign luminaire can be part of an escape route control system.

It can also be said that the escape route control system creates a dynamic escape route display system or an adaptive escape route display system. This includes at least one escape sign luminaire as previously presented.

The exit sign luminaire is set up to display at least two different display images.

An escape route indicator for displaying a specific escape route is advantageously provided by a (separate) control unit.

A corresponding escape sign luminaire can receive a combination of the display images to be displayed by the individual escape sign luminaires. There is a digital (e.g. BUS, e.g. LAN, e.g. WLAN, e.g. Modbus, e.g. bacnet, e.g. Ethernet interface) or an analog ( e.g. an interface comprising at least one relay contact.

The interface is advantageously capable of duplexing, so the interface allows communication between the escape sign luminaire and the control unit.

Ideally, at least one interface works digitally and encrypted (which leads to increased security and less susceptibility to compromise).

Ideally, there is at least one point in the escape route control system at which escape route indicators received from the control unit (e.g. guidance system) and information sent to it can be documented in a logbook with a date and time stamp.

Ideally, there is at least one point in the escape route control system at which the occurrence of a switching process of display images of individual escape sign luminaires is documented with a (current) date and with a (current) time stamp in a logbook.

Ideally, the escape route control system is equipped with escape sign luminaires such that the control unit (e.g. the control system, e.g. an emergency lighting center) can use the interface to query the display image actually displayed on the escape sign luminaire (displayed at the time of the query).

Ideally, the escape route control system is equipped with escape sign luminaires such that the control unit can use the interface to query the display images that can be displayed (i.e. available) on each escape sign luminaire.

Ideally, the escape route control system is equipped with such escape sign luminaires that after receiving an escape route indicator to display a specific escape route, an addressed or addressed escape sign luminaire acknowledges the escape route indicator via feedback to the control unit.

Ideally, the escape route control system is equipped with escape sign luminaires such that, after receiving an escape route indicator to display a specific escape route, the control unit confirms that the escape route indicator has been passed on to the individual escape sign luminaires.

Ideally, the escape route control system is equipped with such escape sign luminaires that after receiving an escape route indicator to display a specific escape route and after the corresponding escape route indicators have been passed on to the individual Escape sign luminaires a response (preferably about the successful setting and display of the respectively requested escape sign or display image) is sent out by these and thereupon the control unit - in this way - has been given a response.

Ideally, the escape route control system is equipped with escape sign luminaires such that the control unit is given feedback if it was not possible to set the desired display image on at least one of the escape sign luminaires.

Ideally, the escape route control system is equipped with escape sign luminaires such that communication with the control unit is monitored and, in the event of a failure or disruption in communication, this is reported to a central point. With this message, a (current) date and a (current) time stamp can be documented in a logbook.

Ideally, the escape route control system is equipped with escape sign luminaires such that the escape sign luminaires monitor communication with the control unit and, in the event of a failure or disruption of communication, each escape sign luminaire automatically assumes a well-defined state, preferably containing a certain indicated escape route.

Ideally, the escape route control system is equipped with such escape sign luminaires that the escape sign luminaires report this restart or reset event to the control unit in the event of their restart or reset (so that the control unit can request the last set escape route again, if necessary).

It is also advantageous if at least one interface, if not all interfaces, can be deactivated and / or blocked in order to e.g. B. in the case of an official or police intervention (in this case construction work, measures for evacuation in terrorist cases or the like) a manual setting of a certain escape route is possible.

Some advantages are underlined again below.

By operating with escape route indicators or with escape route identification, each luminaire does not have to be controlled individually. If the escape route indicators are operated or managed in terms of scenarios, the sending of an escape route indicator switching (or maintaining) displays on several escape sign luminaires can be effected at the same time. A delayed switching sequence through which one escape sign luminaire is switched over after the other, a sequential switching so to speak, is prevented as well as possible. For the observer or fleeing person, the impression arises that all of the escape sign luminaires he can see have been switched over at exactly the same time in order to indicate and approve or recommend a different escape route if necessary.

The data bus, which is connected to the escape sign luminaire via a communication interface, is freed from communication involving a large amount of data. Only the escape route identifier or the escape route indicator needs to be transmitted. In the simplest case, it is sufficient if only two signals are transmitted, e.g. B. an applied voltage signal and a missing voltage signal if it can be assumed that the building with the corresponding control system is equipped with two escape routes in accordance with the standard. Larger and more complex buildings and facilities, e.g. B. stadiums, train stations and airports, can of course also be equipped with more than two escape routes.

A particular advantage that can be achieved with the escape route control system described above, its (escape sign) lights and the method for escape route guidance is that display scenarios can be implemented using simple commands.

It is known that in public buildings, especially in larger buildings, at least two escape routes are always to be provided. Every larger building nowadays has to be planned in such a way that there are two escape routes. With a static designation of the escape routes, there is a risk that people may take a blocked or overloaded route in an emergency and thus lose valuable time. With a rescue system or with an escape route control system that works with a predetermined number of display scenarios, different escape routes can be established depending on the emergency situation, on whose routes people who are escaping, who are guided by the displays, can be guided to safety. It is not necessary that every luminaire can cover any situation. Rather, the escape route scenarios held in an escape sign luminaire relate to the display options required at the respective location, which can be displayed centrally via the control system. This highly efficient structure of systems with the escape sign luminaires they contain, as well as the method for their operation, makes it possible, with limited memory requirements, to use suitable configurations for almost all escape routes To switch escape sign luminaires in the shortest possible time and with a high level of transmission reliability when transmitting a manageable number of control commands.

Due to the direct connection of sensors to individual exit sign luminaires, the exit sign luminaires with connected sensors function as detectors for special situations, especially dangerous situations. If an escape sign luminaire uses a signal from a sensor connected to it to determine that a situation has occurred that does not match the escape route indicators or scenarios that were communicated last, in particular those made available via the data bus, a correction can be initiated, e.g. B. by submitting an alternative escape route indicator. Depending on the system architecture of the emergency lighting system, only the control system can transmit the valid escape route indicator. In an alternative embodiment, however, it can also be provided that exit sign lights that are connected to special sensors, e.g. B. with fire or smoke alarm sensors, may transmit at least one escape route indicator (of possibly several available escape route indicators).

Brief description of the figure

• Figur 1 eine Gebäudeetage mit einer Notlichtbeleuchtungsanlage,
• Figur 2 eine Displayseite einer Rettungszeichenleuchte,
• Figur 3 eine Kontaktierungsseite der in Figur 2 dargestellten Rettungszeichenleuchte,
• Figur 4 eine Draufsicht von oben auf eine schematisch dargestellte weitere Ausführungsform einer Rettungszeichenleuchte mit zwei Displays und
• Figur 5 ein Verfahren zur Fluchtwegslenkung mittels Fluchtwegsindikator zeigt.

The present invention can be understood even better if reference is made to the accompanying figures, which exemplify particularly advantageous configuration options without restricting the present invention to these, wherein

• Figure 1 one floor of the building with an emergency lighting system,
• Figure 2 a display side of an escape sign luminaire,
• Figure 3 a contacting page of the in Figure 2 exit sign luminaire shown,
• Figure 4 a plan view from above of a schematically illustrated further embodiment of an escape sign luminaire with two displays and
• Figure 5 shows a method for guiding escape routes by means of an escape route indicator.

Figure description

Figure 1 shows an emergency lighting system 20 in a building 2. The building or the building floor 2 has a hallway 6, a first room 12, a second room 14 and a third room 16. People (not shown) who are in the building 2, get z. B. in the event of a fire alarm due to a fire in the third room 16 on a path 28 Via a staircase 4 into the hallway 6. In the hallway 6 there is the guidance system 22 of the emergency lighting system 20 in a closed, more precisely a fire-proof room controllable. The displays 40, 42, 44 of the individual exit sign lights 30, 32, 34 are shown in FIG Figure 1 drawn out enlarged in a dotted frame. A display image 46, 48, 50 is shown on each of the displays 40, 42, 44. People who get into the corridor 6 via the stairs 4 could ^{follow a path 28 I} straight ahead through a passage 10 or turn to a first passage 8 or a second passage 10 ^I on the corridor 6. A search for a suitable escape route 24, 26 is relieved of the people by the emergency lighting system 20, in that the guidance system 22 ^{displays a lighted area 70 and a lighted area 70 I} on the escape sign luminaire 30, which shows the escape route 24 through the passage 8 into the room 12 identify. From the room 12 the fleeing people get through an exit 18 to safety. The luminous areas 70, 70 ^{I of} the first escape sign luminaire 30 form a first pictogram 52 which contains directional information 56. From their knowledge of the building 2, it is true that a person could also be tempted to take a second escape route 26, which leads through a passage 10 ^I into the room 14. However, exit 18 ^I from room 14, which could lead to safety, is not ideal. There could e.g. B. a parked vehicle (not shown) block the way. The special situation that the escape route 26 cannot be followed in the case of fire shown is indicated by a second escape sign luminaire 32 which is located at the passage 10 ^I. The escape sign luminaire has a luminous area 70 ". The luminous area 70" is a generally understandable, red-colored "X" as a path indication 58, which is part of a second pictogram 54. In the same way as this second display image 48 of the second escape sign luminaire 32 is designed, the third escape sign luminaire 34 with the third display image 50 on the third display 44 shows a path blockage for the passage 10 into the room 16 in which the seat of the fire is located. As soon as a surveillance camera of the building surveillance system (not shown) at the exit 18 ^I from the room 14 informs the control system 22 that the exit 18 ^{I is} accessible, the second display image 48 of the second exit sign luminaire 32 can be switched to correspond to the first display image 46. A first escape route 24 and a second escape route 26 are thus available so that people can get to safety more quickly.

Furthermore, in Figure 1 To see an emergency lighting center 23, which is in communicative connection with the control system 22. If it is to be avoided that the guidance system 22 can directly access each individual escape sign luminaire 32, 34, a Intermediate emergency lighting center 23 a device may be present as a lock. The emergency lighting center 23 controls the exit sign lights 32, 34. The control system 22 controls all systems of the building 2, including the emergency lighting system 20.

Figure 2 shows an escape sign luminaire 30 ^I with a representation plane 74. In the representation plane 74, several elementary surfaces, such as the elementary surfaces 62, 64, 66 are integrated. Some elementary surfaces are combined as a group of elementary surfaces 68. Group 68 belongs to a pictogram. The elementary surfaces 62, 64, 66, 68 can be switched on as self-luminous elementary surfaces, with light, e.g. B. green light, white light or red light, can go out. The light is electric, e.g. B. by means of light emitting diodes generated. A micro-lamellar film 45 is applied over the entire surface of the representation plane 74, of which only a corner section is shown. The micro-lamellar film 45 is used to direct the light emanating from the elementary surfaces 62, 64, 66, 68 in a preferred direction, such as in a direction towards the stairs 4 (in Figure 1 ) to. Some of the elementary areas jointly comprise button elements, such as the button element 82, the brightness of which can be adjusted depending on the combination with an elementary area. The display 40 ^{I of} the exit sign luminaire 30 ^I is surrounded by a frame 60. An error display 75 is integrated in a central area of the frame 60 and is set back or removed from the display plane 74. The error display 75 can, among other things, contain information about operational readiness or about a charge status of a rechargeable battery (see the rechargeable battery 98 in FIG Figure 3 ) or via a color spectrum. Pictogram colors, in particular signal colors, such as the color red, are excluded from the color spectrum in order to rule out misunderstandings as far as possible when reading a displayed, luminous pictogram.

The back of the exit sign luminaire 30 ^I (known from Figure 2 ) is in Figure 3 shown. The rear side can also be referred to as the contacting side 38 of the exit sign luminaire 30 ^I. On the contact side 38 includes a wall mounting point 36 with which the escape sign luminaire 30 ^I z. B. over a passage (see e.g. passages 8, 10, 10 ^I in Figure 1 ) can be fastened. A rechargeable battery 98 is located on the contact side 38 of the exit sign luminaire 30 ^{I. In addition, a first power supply connection 92 and a second energy supply connection 92 I} are located on the contact side 38, which are looped through internally in the exit sign luminaire 30 ^I or are electrically connected to one another. The ^{exit sign luminaire 30 I} can thus be supplied with electrical energy either via one of the energy supply connections 92, 92 'or via the accumulator. The other energy supply connection 92 ^I , 92 offers a connection option for another exit sign luminaire. A sensor connection 89 and a data line connection 91 are located next to the energy supply connections 92, 92 ^{I. In addition, the escape sign luminaire 30 I has} a cable connection 93.

In addition, in Figure 3 several components are shown in dashed lines, which are located inside the escape sign luminaire 30 ^I and thus cannot be seen in the top view of the contacting side 38 shown. Some of these components are briefly explained below.

The data line connection 91 leads to a communication interface 90 which is electronically connected to an escape sign calculating unit 94. The escape sign calculation unit 94 is also electronically connected to a memory (unit) 96 of the escape sign luminaire 30 ^I. The sensor connection 89 is electronically connected to the escape sign calculating unit 94 via a sensor interface 88. A conductor track 80 leads from the escape sign calculating unit 94 to a driver unit 76. The driver unit 76 comprises an EEPROM 78, ie a non-volatile memory unit. From the driver unit 76, conductor tracks, such as the conductor track 80 ^I , lead to elementary surfaces, such as the elementary surface 62. Via the conductor track 80 ^I , electrical energy is supplied to a light emission influencing element 62 ', which serves to generate an elementary surface, such as the elementary surface 62 in FIG Figure 2 to cause the emission of light. The driver unit 76 also has access to data in the memory 96 via a conductor track 80 ″. In addition to the sensor connection 89, the ^{exit sign luminaire 30 I has} a person presence detection sensor 84 and a smoke sensor 86 Conductor tracks 80 ^III , 80 ^{IV of} the escape sign arithmetic unit 94 are supplied.

In the Figure 3 The escape sign calculating unit 94 shown reacts to an escape route indicator 99 and can switch elementary areas 62 on and off accordingly. In addition, the escape sign calculating unit 94 processes signals from the smoke sensor 86 and sends them via the communication interface 90 to other bus users, e.g. B. another exit sign luminaire 32, 34 (see Figure 1 ).

Figure 4 shows an escape sign luminaire 34 ^I , which comprises a first display 41, a second display 43 and a display driver stage 76 ^I. The display driver stage 76 ^{I, which} can be supplied with electrical power, is located behind the displays 41, 43. The displays 41, 43 each have large areas 39, 39 ^I for emitting light. The displays 41, 43 are on a Interior angle 51 aligned with one another in space. The escape sign luminaire 34 ^{I can} thus be seen particularly well on a wall from opposite directions, the directions running parallel to the wall.

In the Figure 1 Escape sign lights 30, 32, 34 shown can be a combination of individual or all features of the in Figure 2 , in Figure 3 as in Figure 4 Escape sign lights 30 ^I , 34 ^{I shown} have.

An example of a method for escape route guidance by means of an escape route control system 100 is shown in FIG Figure 5 shown schematically. In a first method step 102, a control data tuple for the escape sign luminaires, such as the escape sign luminaire 30, is created in a control system 22 ′ Figure 1 generated. The control data tuple can advantageously be accompanied by one or more addresses from one or more escape sign luminaires if these escape sign luminaires are to be controlled individually. The control data tuple has an escape route indicator 99, which is represented in compact form by a simple number. The control data tuple is sent 104 by the control system 22 ', the data being sent repeatedly, following a clock rate. The control data tuple is received. Receiving 106 of the control data tuple in a first exit sign luminaire 30 ^I and receiving 106 ^{I of} the control data tuple in a second exit sign luminaire 32 ^I have the consequence that these exit sign luminaires, such as the exit sign luminaires 30, 32, 34 in FIG Figure 1 , record the identical escape route indicator 99. The control data tuple arrives via an interface like the one in Figure 3 communication interface 90 shown in the escape sign calculating unit, such as the one in Figure 3 The escape sign arithmetic unit 94 shown. The evaluation of the control data tuple results in FIG Figure 5 At least the escape route indicator 99. On the basis of an ^{assignment table stored electronically or magnetically in each of the escape sign luminaires 30 I} , 32 ', a likewise stored assignment algorithm of the respective escape ^{sign luminaire 30 I} , 32' indicates a switching state corresponding to the escape route indicator 99 to a display of the relevant escape sign luminaire 30 ^I , 32 ^I , such as B. the display 40, 42, 44 in Figure 1 , to. In other words, in an escape sign luminaire 30, 30 ^I , 32, 32 ', 34 a selection 108 or 108 ^{I of} a display mode of the respective escape sign luminaire 30, 30 ^I , 32, 32 ^I , 34 takes place. The allocation algorithm, which is also referred to as the selection algorithm can be assigned to the escape route indicator 99 a display mode. To create the display mode, a memory in the escape sign luminaire is accessed by its computing unit or by the display driver stage. The display mode determined by the escape route indicator is selected from a group of display modes stored in the memory. A The display mode is a combination of elementary areas, which are then the luminous areas (see Figure 1 as Figure 3 ) are specifiable.

As a result of the procedure described, ^{a first exit sign luminaire 30 I is provided with} a first display image (see, for example, display image 46 in FIG Figure 1 ) and a second exit sign luminaire 32 a second display image (see, for example, display image 48 in FIG Figure 1 ) assigned by the received escape route indicator 99, it being possible for the two display images to differ. In the same way, further display images of further escape sign luminaires (e.g. the third display image 50 of the third escape sign luminaire 34 in FIG Figure 1 ) determined by the escape route indicator 99. After selecting 108 or 108 ^I according to Figure 5 there is a switching 110, 110 ^{I of} the respective escape sign luminaire or of its respective display to the display mode predetermined by the escape route indicator 99. A switching process takes place in particular in a display driver stage. In this way, the in Figure 1 The escape route shown causes.

If, as in Figure 1 shown, from an escape sign luminaire 30, 32, 34 or a building sensor system, such as a surveillance camera, the guidance system 22 receives information that requires an escape route change, the guidance system 22 can generate ^{a second escape route indicator 99 I and send it to the exit sign luminaires 30,} 32, 34 send. The escape sign lights 30, 32, 34 make their own selection of their display mode on the basis of the second escape route indicator 99 ^I from the display modes held in their memory. Here, initiated by an escape route indicator, the first escape route 24 can be blocked by a route information such as the route information 58 on the first escape route luminaire 30 and the second escape route 26 can be indicated by a directional information such as the directional information 56 on the second escape route luminaire 32. With the method, it is possible to use the emergency lighting system, such as the emergency lighting system 20 in FIG Figure 1 to react to a changed danger situation and to show the safest or fastest possible escape route to the building exit.

The design options shown in the individual figures can also be combined with one another in any desired form, resulting in advantageous designs.

So it is possible, instead of the exit sign lights 30, 32, 34, to use a light like the one in Figure 4 Escape sign luminaire 34 ^{I shown} , to be installed at suitable locations in building 2.

List of reference symbols

2

Building, especially floor

4th

stairway

6th

hallway

8th

first try

10, 10I

second pass

12th

first room

14th

second room

16

third room

18.18I

exit

20th

Emergency lighting system

22, 22I

Control system, especially control system

23

Emergency lighting center

24

first escape route

26th

second escape route

28, 28I

path

30, 30I

Escape sign luminaire, especially ePaper display escape luminaire

32, 32I

Escape sign luminaire, especially TFT display escape luminaire

34, 34I

Escape sign luminaire, in particular LC display escape luminaire

36

Wall mounting point

38

Contact side of the exit sign luminaire

39, 39I

Large area

40, 40I

first display, especially ePaper display

41

first display

42

second display, especially TFT display

43

second display

44

third display, in particular LC display

45

Micro-lamellar film

46

first display image

48

second display image

50

third display image

51

Interior angle

52

first pictogram

54

second pictogram

56

Direction indication

58

Path indication

60

frame

62

Elementary surface, in particular self-luminous elementary surface

62I

Light emission influencing element of an elementary surface

64

Elementary surface, in particular self-luminous elementary surface

66

Elementary surface, in particular self-luminous elementary surface

68

Group of elementary surfaces

70, 70I, 70II

Luminous area

74

Display level

75

Error display, especially charge status display

76, 76I

Driver unit, especially display driver stage

78

EEPROM of the driver unit, in particular non-volatile memory unit for failover

80, 80 ', 80 ", 80III, 80IV

Conductor track, especially pair of conductors

82

Button element, in particular a brightness-regulating button element

84

Sensor, in particular a person presence detection sensor

86

Sensor, especially smoke sensor

88

Sensor interface

89

Sensor connection

90

Communication interface

91

Data line connection

92,

first power supply connection

92 '

second power supply connection

93

Cable connection, especially analog connection

94

Escape sign calculator

96

Storage unit of the escape sign luminaire, in particular non-volatile, rewritable data memory

98

accumulator

99

Escape route indicator, in particular escape route indicator identifier

100

Method for escape route control, in particular escape route control by means of escape route control system

102

Generation of a control data tuple in a control system, preferably with the insertion of addresses

104

Sending the control data tuple from the control system, in particular sending data with a clock rate

106, 106I

Receiving the control data tuple in the exit sign luminaire, in particular receiving in an escape sign calculating unit via an interface

108, 108I

Selection of a display mode from a group of display modes stored in the exit sign luminaire

110, 110I

Switching the display to display mode

Claims (22)

Exit sign luminaire (30, 30 ^I , 32, 32 ', 34, 34 ^I )
with an electronically controllable,
at least two escape routes (24, 26) differentiating,
Display images (46, 48, 50) radiating,
self-illuminating display,
z. B. by front-lighting lamps such as LEDs or z. B. by backlit light sources such as LEDs,
whereby the display images (46, 48, 50), which comprise at least two different directional (56) and / or path information (58), can be displayed alternately,
by the display for displaying at least one icon (52, 54) due to the escape sign luminaire (30, 30 ^I, 32, 32 ^I, 34, 34 ^I) receivable escape route indicator (99. 99 ^I) by at least one from self-luminous elementary surfaces ( 62, 62 ', 64, 66, 68), such as pixels, display dots or display areas, composite display (40, 40 ^I , 41, 42, 43, 44), such as an ePaper display (40, 40 ^I ) , a TFT display (42) or an LC display (44) is designed,
characterized in that
the representation is formed in a single, possibly multilayered representation plane (74),
wherein a plurality of elementary surfaces (62, 62 ', 64, 66, 68) of the display by a group-forming driver unit (76, 76 ^I ), z. B. can be controlled by an escape sign arithmetic unit (94) or a display driver stage (76 ^I ). Escape sign luminaire (34 ^I ) according to claim 1,
characterized in that
the exit sign luminaire (34 ^I ) has two large ^{surfaces (39, 39 I} ),
each of which includes a display (41, 43), that is to say at least a first display (41) and a second display (43), preferably framed. Escape sign luminaire (30, 30 ^I , 32, 32 ', 34, 34 ^I ) according to one of the preceding claims,
characterized in that
the group-forming driver unit (76, 76 ^I ) is designed for a common, similar and, in particular, simultaneous controllability of the elementary surfaces combined to form a group (68),
where preferably controlled elementary areas form a luminous area (70, 70 ^I , 70 ″) displaying information. Escape sign luminaire (30, 30 ^I , 32, 32 ^I , 34, 34 ^I ) according to one of the preceding claims,
characterized in that
a conductor track (80 ^I ) from the driver unit (76) to a plurality of light emission influencing elements (62 ^I ) of the display (40 ^I ), such as segments of an LC display (44). Escape sign luminaire (30, 30 ^I , 32, 32 ^I , 34, 34 ^I ) according to one of the preceding claims,
characterized in that
a conductor track (80 ^I ) from the driver unit (76) to a plurality of light source influencing elements of the display, such as brightness-regulating button elements (82) or such as transistors of the TFT display (42). Escape sign luminaire (30, 30 ^I , 32, 32 ^I , 34, 34 ^I ) according to one of the preceding claims,
characterized in that
the escape sign luminaire (30, 30 ^I , 32, 32 ^I , 34, 34 ^I ) has at least one sensor (84, 86), such as a smoke sensor (86) or a personal instruction detection sensor (84), and / or at least one sensor interface (88) ,
wherein in particular the sensor interface (88) comprises a sensor connection (89) or an electromagnetically operating sensor data receiver. Escape sign luminaire (30, 30 ^I 32, 32 ^I , 34, 34 ^I ) according to one of the preceding claims,
characterized in that
the escape sign luminaire (30, 30 ^I , 32, 32 ^I , 34, 34 ^I ) at least one communication interface (90), such as a relay contact, such as a data line bus, such as a carrier frequency module, in particular a supply line-bound carrier frequency module or such as an electromagnetic transmission unit, for the transmission of sensor data and / or from elementary area data and / or from area group data, in particular from the driver unit (76, 76 ^I ), preferably to a guidance system (22, 22 ^I ) or to at least one further escape sign luminaire (30, 30 ^I , 32, 32 ^I , 34, 34 ^I ). Escape sign luminaire (30, 30 ^I , 32, 32 ^I , 34, 34 ^I ) according to one of the preceding claims,
characterized in that
the exit sign luminaire (34 ^I ) comprises at least two displays (41, 43),
wherein the driver unit (76 ^I ) is designed to control at least one first elementary area group on the first display (41) and is designed to control at least one second elementary area group on the second display (43), in particular the displays (41, 43) having a Interior angles (51) of less than 140 ° are arranged to one another. Escape sign luminaire (30, 30 ^I , 32, 32 ', 34, 34 ^I ) according to one of the preceding claims,
characterized in that
the sequentially controllable display images 46, 48, 50) composed of self-illuminating elementary surfaces (62, 62 ^I , 64, 66, 68) for information purposes in a display (40, 41, 40 ^I , 42, 43, 44), preferably the same cover large areas. Escape sign luminaire (30, 30 ^I , 32, 32 ', 34, 34 ^I ) according to claim 9,
characterized in that
the exit sign luminaire (30, 30 ^I , 32, 32 ', 34, 34 ^I ) one,
in particular by a control signal via the communication interface (90) and / or by supplying an analog control voltage via a cable connection (93) and / or manually adjustable,
Has selection device,
with which surface areas (62, 62 ^I , 64, 66, 68) or groups (68) of surface areas that can be ^{controlled by the driver unit (76, 76 I} ) can be specified,
wherein the surface areas (62, 62 ^I , 64, 66, 68) are stored as surface area data in a memory unit (78, 96) of the escape sign luminaire (30, 30 ^I , 32, 32 ', 34, 34 ^I ). Escape sign luminaire (30, 30 ^I , 32, 32 ', 34, 34 ^I ) according to one of the preceding claims,
characterized in that
there is a failover in the group-forming driver unit (76, 76 ^I ), in particular using a non-volatile memory (78, 96) such as an EEPROM (78),
wherein the failover comprises a reset which is designed to bring about a basic setting of the group-forming driver unit (76, 76 ^I ) to be assumed after the end of a power failure and / or to be assumed in the event of a control command reception fault. Escape sign luminaire (30, 30 ^I , 32, 32 ', 34, 34 ^I ) according to one of the preceding claims,
characterized in that
the escape sign luminaire (30, 30 ^I , 32, 32 ', 34, 34 ^I ) has a decoding device in which one of the escape sign luminaires (30, 30 ^I , 32, 32 ^I , 34, 34 ^I ) assigned individual address and / or group address in a non-volatile, preferably programmable, memory (78, 96) is stored. Escape sign luminaire (30, 30 ^I , 32, 32 ', 34, 34 ^I ) according to one of the preceding claims,
characterized in that
the exit sign luminaire (30, 30 ^I , 32, 32 ', 34, 34 ^I ) is designed to process a data tuple,
which comes in particular from a control system (22, 22 ^I ) and can be transmitted to the escape sign luminaire (30, 30 ^I , 32, 32 ', 34, 34 ^I ),
wherein the data tuple contains at least one address and at least one escape route indicator identifier (99, 99 ^I ) and is intended for the driver unit (76, 76 ^I ). Escape sign luminaire (30, 30 ^I , 32, 32 ', 34, 34 ^I ) according to one of the preceding claims,
characterized in that
the exit sign luminaire (30, 30 ^I , 32, 32 ', 34, 34 ^I ) is equipped with its own rechargeable battery (98) that exclusively supplies it,
which supplies the driver unit (76, 76 ^I ) with power in the event of an external power supply failure,
wherein an emergency program stored in the driver unit (76, 76 ^I ) is designed for the creation of an emergency indication on the display (40, 41, 40 ^I , 42, 43, 44) and all power consumers of the escape sign luminaire (30 , 30 ^I , 32, 32 ', 34, 34 ^I ) can be switched off. Escape sign luminaire (30, 30 ^I , 32, 32 ', 34, 34 ^I ) according to one of the preceding Expectations,
characterized in that
the at least one display (40, 41, 40 ^I , 42, 43, 44) is a TFT display (42) or LC display (44),
which is covered with a micro-lamellar film (45),
can be passed through the light beams of the display (42, 44) in a radiating manner, the micro-lamellar film (45) preferably specifying a direction-dependent propagation direction of the light beams for a direction-related display. Escape sign luminaire (30, 30 ^I , 32, 32 ', 34, 34 ^I ) according to one of the preceding claims,
characterized in that
the escape sign luminaire (30, 30 ^I , 32, 32 ', 34, 34 ^I ) recognizes, stores and stores several optical escape route indicators (99, 99 ^I ), in particular at least one optical projection, and an acoustic escape route indicator, such as a modulatable sound generator or loudspeaker / or evaluates which can be controlled by the driver unit (76, 76 ^I ). Communication method for switching a display (40, 41, 40 ^I , 42, 43, 44) of an escape sign luminaire (30, 30 ^I , 32, 32 ', 34, 34 ^I ),
which has a memory (96), in particular an overwritable, non-volatile memory (96), with data from display images (46, 48, 50),
from which by switching a display image (46, 48, 50) on the display (40, 41, 40 ^I , 42, 43, 44),
which is a segmented display (40, 41, 40 ^I , 42, 43, 44) showing several display images in one plane,
is selected depending on an escape route identifier (99, 99 ^I ),
wherein the escape route identifier (99.99 ^{I ) is received from the escape sign luminaire (30, 30 I} , 32, 32 ^I , 34, 34 ^I ) in particular via a communication interface (90) for a data bus,
characterized in that
the escape sign luminaire (30, 30 ^I , 32, 32 ', 34, 34 ^I ) is designed according to one of the preceding claims. Method for escape route guidance (100) by means of an escape route control system, comprising an emergency lighting system (20) with at least two escape sign lights (30, 30 ^I , 32, 32 ', 34, 34 ^I ),
where in particular each escape sign luminaire (30, 30 ^I , 32, 32 ^I , 34, 34 ^I ) is designed according to one of claims 1 to 16,
and a control system (22, 22 '),
which may have a building surveillance system,
a data bus from the control system (22, 22 ^I ) to each of the ^{exit sign lights (30, 30 I} , 32, 32 ', 34, 34 ^I ) is present,
Via which a data exchange connection, in particular by means of bidirectional communication, can be established between the control system (22, 22 ^I ) and all exit sign lights (30, 30 ^I , 32, 32 ', 34, 34 ^I ),
characterized in that
in the control system (22, 22 ^I ) at least one control data tuple for activating self-illuminating elementary surfaces (62, 62 ^I , 64, 66, 68) on at least one display (40, 41, 40 ^I , 42, 43, 44) of an escape sign luminaire (30 , 30 ^I , 32, 32 ', 34, 34 ^I ) for activation by a group-forming driver unit (76, 76 ^I ) is generated (102) and
the control data tuple, provided with an address, is transmitted via the data bus (104),
where control data tuples are transmitted at a clock rate which is preferably greater than 20 control data tuples per second and in particular less than 100 control data tuples per second,
in particular with the at least one control data tuple a selection (108, 108 ^I ) of a display mode from a group of, preferably four, present in a memory unit (96) of the respective escape ^{sign luminaire (30, 30 I} , 32, 32 ^I , 34, 34 ^I) or five, display modes is done and
whereby preferably the displays (40, 41, 40 ^I , 42, 43, 44) of the at least two exit sign lights (30, 30 ^I , 32, 32 ', 34, 34 ^I ) can be switched (110, 110 ^I ) at the same time. Method for escape route guidance (100) according to claim 18,
characterized in that
the escape sign lights (30, 30 ^I , 32, 32 ', 34, 34 ^I ) measure information from at least one of the sensors (84, 86) assigned to them and
the information is part of a light data tuple for transmission to the control system (22, 22 '), in particular in response to a reception of a first control data tuple,
wherein the control system (22, 22 ^I) extracts an address from the Leuchtendatentupel and a control algorithm of the control system (22,22 ^I) based on the information of the escape sign luminaire (30, 30 ^I, 32, 32 ^I, 34, 34 ^I) a second Steuerdatentupel in the Cases generated,
in which an assessment of the information based on a comparison reveals the need for an additional tax data tuple,
wherein a check is preferably carried out as to whether the information lies in a value range of a validity interval. Method for escape route guidance (100) according to one of Claims 18 or 19,
characterized in that
the escape sign luminaire (30, 30 ^I , 32, 32 ', 34, 34 ^I ) receives at least one set of operating data for a change in the operating status from an initialization module, such as an operating initialization routine of the control system,
wherein the operating data preferably comprises at least one data record from the following data records: - a device address, - a basic setting, - an emergency record, - an area data set and / or - a set of escape route indicator data, in particular with escape route indicator IDs (99, 99 ^I ), such as display modes, and the operating data are stored in a rewritable electronic memory (78, 96) of the escape ^{sign luminaire (30, 30 I} , 32, 32 ', 34, 34 ^I ) and are kept ready for selective retrieval. Method for escape route guidance (100) according to claim 20,
characterized in that
the group-forming driver unit (76, 76 ^I ) of the escape ^{sign luminaire (30, 30 I} , 32, 32 ^I , 34, 34 ^I ) defines a display image (46, 48, 50) based on the operating data from the electronic memory (78, 96). Method for escape route guidance (100) according to one of Claims 18 to 21,
characterized in that
in dependence of an information of the sensor (84,86) one escape sign luminaire (30, 30 ^I, 32, 32 ', 34, 34 ^I), the escape sign luminaire (30, 30 ^I, 32,32 ^I, 34, 34 ^I), in particular by a calculation in the escape sign calculation unit (94) that selects the display image (46, 48, 50).

Images