EP0881616B1 - Lamp for rescue signals - Google Patents

Description

The invention relates to an escape sign luminaire with a Housing and an illuminated display surface for optical Display of escape signs and one with such Safety system equipped with escape sign luminaires.

Exit sign luminaires are used, for example, in theaters, Department stores, museums and other public buildings Escape route display used. With conventional lights of this type are the escape signs, e.g. a directional arrow, a door or a pictogram fleeing person, in an unchanging arrangement on a backlit by conventional lamps, translucent cover attached to a housing. Such escape sign luminaires are intended in the event of an alarm in the event of fire or other dangerous situations, the escape route for people in the building.

In rooms or buildings with multiple emergency exits however, in the event of a fire, the problem arises that the escape route leading away from the source of the fire may well change can, depending on where in the room or Building breaks out. To under such conditions to prevent people from moving towards a Move the source of the fire and thereby be endangered several of the usual safety lights, each with different ones Display areas are provided, which are then in Dependent on the respective fire situation ah- or switched off become. However, this may require a large number of different lights, what with a considerable expenditure on equipment and correspondingly high Associated costs. It will also be used for display several escape routes required a large number on escape sign luminaires often perceived as annoying and can add to the confusion.

The object of the invention is a universally applicable Exit sign luminaire with variable display options and one equipped with such escape sign lights Creating security system.

This task is performed with an escape sign luminaire the features of claim 1 and by a security system solved with the features of claim 7.

The escape sign luminaire according to the invention contains a housing and an illuminated display area for visual display of escape signs, with the display area through a plurality of light emitting diodes is formed by one Control device for the variable display of the rescue symbols are controllable. The display area contains three adjacent areas, each for radiation inner light-emitting diodes formed in a first color for the display of the escape signs and arranged around them outer light emitting diodes for radiation in another Color, with the inner light emitting diodes in the middle area to represent arrows with different Direction and in the two outer areas for display a rectangle and a pictogram, to the right or left fleeing person are arranged.

In contrast to the conventional exit sign luminaires with the unchangeable symbols for displaying a fixed The escape sign luminaire according to the invention provides escape direction a variety of variable display options, whereby with a single lamp corresponding to the Dangerous situation, different escape routes selected can be displayed. Especially in rooms with several Outputs is thus a simplified display of each safest escape route possible. Because of the high luminosity the light-emitting diodes, which are usually provided with optics is the display even in poor lighting conditions clearly. This contributes to further reduction of panic situations. The LEDs show in Compared to the conventional lamps also a clear one longer lifespan, reducing the likelihood of failure reduced and maintenance is simplified. Even if individual LEDs fail, the ones that are displayed remain Symbols or signs are recognizable, increasing security is improved.

The display area of the escape sign luminaire has three side by side Areas in which are radiating in yellow inner light emitting diodes arranged to display the escape signs are. To outline and better highlight the Exit signs are around them e.g. radiating in green outer LEDs arranged. In the middle area are the inner LEDs to represent a to the left, one to the right and one pointing down Arrows arranged. In the two outer areas are the inner LEDs to display a rectangle and a refugee depicted pictographically, in the left area the LEDs for Representation of a person fleeing to the right and in the right area to depict a fleeing to the left Person are positioned. With such a structure Display area can be e.g. in the left area is arranged in the form of a rectangle inner LEDs, in the middle area for Representation of the arrow pointing to the left inner LEDs and in the right area for Representation of the person fleeing to the left inner light emitting diodes together with all outer light emitting diodes can be controlled to the illuminated display. This allows the Escape route to an exit on the left are displayed. By a corresponding reversal to Illuminated display of the rectangle in the right area, one after right arrow in the middle area and the arrow the person fleeing to the right in the left area is a reversal of direction to indicate an exit on the right Side possible. The down arrow is for example for the indication of escape stairs running down or the passage through this door.

In addition to the areas for displaying certain escape signs can the display area expediently another Area with LEDs for displaying letters or have explanatory texts. This allows for further Clarification e.g. the words "EXIT" and "EXIT" appear become. An escape sign luminaire with one Display area can also be above a door for identification of the emergency exit.

In a preferred embodiment, the LEDs are on a circuit board housed in the housing and are protected from damage by a transparent windscreen and pollution protected. There are grooves in the housing for lateral insertion of both the front window and the circuit board and another mounting plate to hold the for the control of the LEDs or their power supply required components provided. This allows the escape sign luminaire simply assembled and also damaged parts can be replaced more easily if necessary.

In the housing, an additional lighting arrangement for Illumination of the traffic routes can be provided. This allows the escape routes in the area of the escape sign luminaires be illuminated.

A security system with a central control unit, several fire detectors connected to the control unit and at least one escape sign luminaire according to the invention is characterized in that the central control unit in the event of an alarm, according to the signals from the fire detectors determined an optimal escape route and the control device the escape sign luminaire to indicate the corresponding Exit sign activated.

Fig. 1 eine Anzeigefläche einer erfindungsgemäßen Rettungszeichenleuchte;

Fig. 2 eine alternative Anzeigefläche einer Rettungszeichenleuchte;

Fig. 3 eine erfindungsgemäße Rettungszeichenleuchte ohne seitlicher Abdeckung in einer schematischen Seitenansicht; und

Fig. 4 schematisch ein mit den erfindungsgemäßen Rettungszeichenleuchten ausgestattetes Sicherheitssystem.

Further special features and advantages of the invention result from the following description of a preferred exemplary embodiment with reference to the drawing. Show it:

1 shows a display area of an escape sign luminaire according to the invention;

2 shows an alternative display area of an escape sign luminaire;

3 shows an escape sign luminaire according to the invention without a side cover in a schematic side view; and

4 schematically shows a security system equipped with the escape sign luminaires according to the invention.

The display surface 1 shown in FIG. 1 of an inventive Exit sign luminaire is characterized by a variety formed by light-emitting diodes 2, which on a corresponding Circuit board 3 provided circuit board 4 in a predetermined Arrangement are soldered. The display area is 1 in the illustrated embodiment into three areas 5 to 7, with e.g. radiating in yellow Inner LEDs 2a to show the rescue symbols as well as arranged around it, radiating in green outer LEDs 2b to highlight the rescue symbols and arranged to arouse attention are. In the central area 6 of the display area 1 are the inner light-emitting diodes 2a to represent three arrows 8a, 8b and 8c arranged with different directions. In the illustrated embodiment, one is to the right and one an arrow 8a and 8b pointing to the left and a downward arrow further arrow 8c directed for pointing to Escape stairs provided below. In the right and left areas 5 and 7 of the display area 1 are the inner LEDs 2a for pictogram-like representation of a to the right or left person 9 and in the form of a rectangle 10 arranged around this person for illustration arranged an escape door.

In the further exemplary embodiment shown schematically in FIG. 2 a display area 11 is in addition to three areas 5 to 7 explained above one under this arranged fourth area 12 with several in yellow emitting light-emitting diodes 13 for displaying an advisory text intended. In the example shown, the LEDs are 13 on the lower area of a circuit board 14 for optical Display of the words "EXIT" and "EXIT" arranged.

As is apparent from Fig. 3, contains the invention Exit sign light on e.g. made of aluminum Housing 15 with a rear wall 16, upper molded thereon and lower side walls 17 and 18, and - not shown - outer side walls, of which at least one is considered removable cover is formed. At the front ends the upper and lower side walls 17 and 18 are lateral opposite slots 19 and 20 for insertion of a For example, transparent front plate 21 forming the front transparent acrylic glass provided. On the inside the top and bottom walls 17 and 18 are also two further opposite receiving slots 22 or 23 in which e.g. the board shown in Fig. 1 4 with the LEDs 2 parallel to the disc 21 of the Side is held insertable. Is parallel to the board 4 in front of the rear wall 16 also spaced a mounting plate 24 in upper and lower lateral guide slots 25 and 26 arranged. The mounting plate 24 can also be removed side cover over the guide slots 25 and 26 are inserted into the housing 15 from the side. For screwing the side cover onto the housing 15 one each on the upper and lower side walls 17 and 18 Bulge 27 formed for a threaded bore 28.

On the lower side wall 18 of the housing 15 is a cutout 29 with side grooves 30 for receiving another transparent disc 31 is provided. This too Disc 31 is from the side when the cover is unscrewed insertable. Inside the housing 15 is behind the disc 31 a lamp assembly 32 from two Fluorescent tubes 33 and a reflector 34, which have a Socket 35 attached to a mounting plate 24 Support 36 are supported. Through this lamp arrangement 32 the traffic routes can be illuminated.

On the mounting plate 24 there is also a transformer 37 for the power supply of the LEDs 2 attached by the primary side with 220V alternating current or for emergency power operation in the event of a power failure, alternatively with 220V direct current can be supplied. On the mounting plate 24 is also a control device 38 for the optional activation the LEDs to display the desired rescue symbols and for monitoring or remote control of the Luminaire attached.

By means of the control device 38, for example inner light emitting diodes 2a of a display area constructed according to FIG. 1 1 can be controlled so that in the left Area 5 arranged in the form of a rectangle 10 LEDs, in the middle area 6 the LEDs to show an arrow 8b pointing to the left and in right area 7 for the pictogram-like display of a to the left fleeing person 9 arranged LEDs are activated. This is the display of an escape route possible to an exit on the left side.

However, if the fire goes to the left Escape route breaks out, the display by the control device 38 can be changed so that in the left area 5 to represent the person fleeing to the right Arranged light-emitting diodes, 6 in the central area LEDs to display the arrow pointing to the right 8a and in the right area 7 the in the form of the rectangle 10th Arranged inner LEDs are activated to the View way to an escape door on the right.

An escape sign luminaire with a display area according to Fig. 2 is both for displaying an escape route as well suitable for marking an escape door. If such Escape sign light attached above an escape door is, for example, the light emitting diodes 2a for illustration of the downward-pointing arrow 8c and the light-emitting diodes 13 activated to display the words "EXIT" and "EXIT" become.

For better visibility of the escape signs, the correspondingly selected light-emitting diodes 2a by the control device 38 are also controlled so that these in Flashing alarm case. An automatic adjustment of the light intensity of the individual LEDs to the respective lighting situation can for example about a - not shown - done photodiode, which is installed in the housing is. This means, for example, a setting in Range from 30 to 100% possible. In the event of an alarm, the LEDs then brightened to 100%.

4 is a schematic example of a simple example for explanation one with the escape sign luminaires according to the invention equipped security system shown. Above the two exits 40 (emergency exit) and 41 (main exit) a room 42 is an escape sign luminaire 43 and 44 with a display of a direction arrow and the words "EXIT" and "EXIT". At the in Fig. 4 upper longitudinal wall 45 are two escape sign lights 46 and 47 with variable escape route display according to FIG. 2 assembled. The escape sign lamps 43, 44, 46 and 47 are over corresponding lines 48 and 49 with a central control unit 51 connected, arranged in a fire alarm control panel can be. In the areas between the escape sign luminaires 46 and 47 and the two outputs 40 and 41 are also fire detectors 52, 53 mounted on the ceiling and 54 are provided, which are connected via the signal lines 50 to the central control unit 51 are connected. Normally the symbols for the escape sign luminaires 46 and 47 to show the escape route pointing to the right. The escape sign luminaire 43 is not activated. However, it is ready for operation via a few green LEDs displayed. The lamp 44 shows the escape route through the door to the main exit.

However, if the fire detector 53 responds, the central control unit 51 passes a corresponding signal, which then the control device 38 in the escape sign lights 43 and 46 to switch on the escape sign luminaire 43 for pointing to the emergency exit 40 and Switchover of the escape sign luminaire 46 activated. If however, the fire alarm 54 responds, the escape sign luminaire remains 44 while keeping their original direction the escape sign luminaire 43, 46 and 47 to indicate a to the left-facing escape route to the emergency exit.

• Die Rettungszeichenleuchten werden im Alarmfall derart angesteuert, daß der Richtungspfeil blinkt.
• Sämtliche Leuchtdioden der Rettungszeichenleuchten mit reduzierter Lichtstärke werden auf 100% aufgehellt.
• Über eine Pageranlage können die Mitarbeiter informiert werden, um nach den in einem Brandschutz-Alarmplan festgelegten Maßnahmen zu handeln.
• Über eine Lautsprecheranlage können die Besucher gemäß Alarmplan informiert und zum Verlassen des Gebäudes in der durch die Rettungszeichenleuchten vorgegebenen Richtung aufgefordert werden.

4 shows only a simple example of a security system according to the invention. The security system according to the invention is also particularly suitable for larger buildings with several escape routes, in which case the fire detector addressed then emits a signal to the central control unit of a fire alarm system. An optimal escape route is then determined in the central control unit as a function of the respon- sible fire alarm and the respective escape sign luminaires are activated to display this escape route. The optimal escape routes for a specific building in different alarm situations can be stored in advance in the control device. In addition to controlling the escape signs to indicate the cheapest escape route, the central control unit can also trigger the following steps via a bus system and a computer-controlled switching system in accordance with a predetermined program:

• In the event of an alarm, the escape sign luminaires are controlled in such a way that the direction arrow flashes.
• All LEDs of the escape sign luminaires with reduced light intensity are brightened to 100%.
• Employees can be informed via a pager system in order to act according to the measures specified in a fire protection alarm plan.
• Visitors can be informed via a loudspeaker system in accordance with the alarm plan and be asked to leave the building in the direction specified by the escape sign luminaires.

The function test and the documentation of this check takes place centrally from the control unit in accordance with the relevant Norms.

The invention is not based on the exemplary embodiments described limited. In addition to those explained in detail Display areas are also other displays for display changed directional symbols or characters possible to the adapted to the respective building or dangerous situation can be.

Claims (10)

1. Escape sign luminaire having a housing (15) and an illuminable display area (1; 11) for optically displaying escape signs (8, 9, 10), the display area (1; 11) being formed by a multiplicity of light-emitting diodes (2) which can be controlled by a control device (38) for the purpose of variably displaying the escape signs (8, 9, 10), characterized in that the display area includes three juxtaposed regions (5, 6, 7) respectively having inner light-emitting diodes (2a), designed to emit in a first colour, for displaying the escape signs (8, 9, 10), and outer light-emitting diodes (2b), arranged around these, for emitting in another colour, the inner light-emitting diodes (2a) being arranged in the middle region (6) for the purpose of displaying arrows (8a, 8b, 8c) of different direction, and being arranged in the two outer regions (5, 7) for the purpose of displaying a rectangle (10) and a person (9) escaping to the right or left and displayed as a pictogram.
2. Escape sign luminaire according to Claim 1, characterized in that the display area (11) has a further region (12) with light-emitting diodes (13) for displaying an information text.
3. Escape sign luminaire according to Claim 1 or 2, characterized in that the light-emitting diodes (2a, 2b) are arranged on a printed circuit board (4; 14) accommodated in the housing (15), and are covered by a transparent front plate (21).
4. Escape sign luminaire according to Claim 3, characterized in that slots (19, 20; 22, 23; 25, 26) are arranged in the housing (15) for the purpose of laterally inserting the printed circuit board (4; 14), the front plate (21) and a mounting plate (24).
5. Escape sign luminaire according to one of Claims 1 to 4, characterized in that an additional luminaire arrangement (32) for illuminating the traffic ways is arranged in the housing (15).
6. Escape sign luminaire according to one of Claims 1 to 5, characterized in that a photodiode is arranged in the housing for the purpose of controlling the luminous intensity of the light-emitting diodes (2a, 2b).
7. Safety system having a central control unit (51), a plurality of fire alarms (52, 53, 54) connected to the control unit (51), and at least one escape sign luminaire, connected to the central control unit (51), according to one of Claims 1 to 6, characterized in that the central control unit (51) determines an optimum escape route in accordance with the signals of the fire alarms (52, 53, 54) and activates the control device (38) of the escape sign luminaire for the purpose of displaying the appropriate escape signs (8, 9, 10).
8. Safety system according to Claim 7, characterized in that the central control unit (51) is assigned a pager system for optically displaying emergency measures adapted to the particular danger situation.
9. Safety system according to Claim 7 or 8, characterized in that a loudspeaker system is connected to the central control unit (51) for the purpose of acoustic reference to the escape sign luminaires.
10. Safety system according to one of Claims 7 to 9, characterized in that the central control unit (51) carries out a function test of the escape sign luminaires and documentation of this check.

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