EP2055352A1 - Method and device for controlling existing fire safety of fire doors - Google Patents

Abstract

The method involves automatically detecting and registering whether a fire protection device (1) i.e. fire protection door, is in an open condition or is brought into the open condition. Data is stored in a digital memory (55), where the data codes time points at which the fire protection device is in the open condition. A continuous opening time is detected when the fire protection device is in the open condition, and a signal is outputted when the opening time exceeds about a predetermined threshold value. A coding of the fire protection device is automatically detected. An independent claim is also included for a fire protection device comprising a frame.

Description

The invention relates to a method for monitoring a fire protection device, which is in a security state in which the fire protection device fully unfolds its protective effect against fire consequences, and an opening state in which the fire protection device does not fully unfold their protective effect, can be brought. According to a second aspect, the invention relates to a fire protection device, in particular a fire door, which is in a security state in which the fire protection device fully unfolds its protective effect against fire consequences, and an opening state in which the fire protection device does not fully develop their protective effect, can be brought.

In the following, the invention will be explained in more detail with reference to a fire protection device in the form of a fire door.

Fire doors are intended to separate building complexes in which a fire has broken out from adjacent building complexes in order to prevent the fire or at least any smoke caused by the fire from spreading to the building previously spared by the fire. For this purpose, the fire doors are fireproof. The prerequisite for the fire doors to be able to fulfill their intended purpose is the closed state of the fire doors. That is why fire doors are self-closing. Thus, open fire doors fall automatically again when they are not locked in the open state. They require monitoring that they automatically return from an open state in a closed state.

A disadvantage of known fire protection devices that they often do not develop their protective effect in case of fire.

The invention has for its object to improve the protective effect of fire protection devices.

This object is achieved by a generic method with the steps (a) regularly automatically detect whether the fire protection device in the open state is brought into the open state and (b) automatically register whether the fire protection device in the open state is brought into the open state solved. According to a second aspect, the invention solves the problem by a generic fire protection apparatus comprising (a) a detection device for automatically detecting whether the fire protection device is in the open state or in the open state, and (b) a registration device configured to automatically register the fire protection device is in the open state or is brought into the open state.

In the context of the present description, the securing state is understood to be the state which is to be adopted by the fire protection device in accordance with the specification in order to prevent the formation and / or propagation of a fire or of smoke. If the fire protection device is a fire door, then the state of security is understood to mean the tightly closed state of the fire door. Under the opening state, in particular, any state is understood that is not the hedging state. For example, if the fire protection device has so much play that it does not completely fill its specified task; as it is necessary, so the fire protection device is in the open state.

Under the automatic detection of whether the fire protection device is in the open state, in particular also understood that a transition from the securing state is detected in the open state. This can be done for example by means of a pressure measurement or an acceleration measurement. Under the automatic detection of whether the fire protection device is in the open state, is in particular also understood that an electrical device is present, which determines at predetermined times, whether the fire protection device is in the open state or not. For example, it is detected every few seconds, at intervals of less than a minute, whether the fire protection device is in the open state.

By automatically registering whether the fire protection device is in the open state, it is understood, in particular, that for the times when it was detected whether the fire protection device is in the open state or in the open state, the corresponding opening state is logged. In particular, registering involves keeping the data for a given period of time so that it can be read out. The registration can be carried out, for example, with a device which is located in or on the fire protection device. Alternatively or in addition, however, it is also possible for the registration to be carried out at a remote location, for example in a monitoring center.

The invention is based on the finding that in known fire protection devices, such as fire doors, their return to the closed state is controlled only in more or less large monitoring periods. A statement about their usual closed state can therefore not be made. So it is conceivable, for example, that a fire door between two inspections of control personnel, in which the required closing state of the fire door is found, was during long periods in the open state, so that the fire door is not in was able to do their job justice. If a fire breaks out during these opening conditions, the opened fire door can not seal off the building complexes which are not affected by the fire, neither against the fire spreading nor against the formation of smoke.

The invention provides the possibility of constantly monitoring and recording a frequency of opening and closing states of the fire door. The resulting protocol provides the operator of the fire door with a basis for organizational measures that are suitable to establish the continuous closing state of the fire door, or reduce the opening conditions of the fire door to a minimum required. Depending on the position of the fire door within a building complex, it must be opened and closed at short or long intervals in accordance with the business transactions to be carried out. The protocol prepared by the opening or closing conditions of the fire door indicates whether the sequence of opening or closing conditions is dictated by the needs of the business or whether measures have been taken, for example for convenience or carelessness, to keep the fire door longer than necessary necessary to keep in the open state. If the fire door has been kept in the open state for a long time, without the usual business such a long opening time, the operator of the fire door must consider how such long-term opening times are prevented and closing conditions can be caused shortly after opening the fire door.

The permanent logging of opening and closing statuses of the fire door and the introduction of organizational measures to shorten the opening conditions strengthen the awareness of all those involved that safety doors can save lives only in a closed state in an emergency. By checking and logging the opening and closing states Attention is drawn to the need to keep the fire door opening times as short as possible and to take the necessary measures after using the fire door so that the fire door is returned to the closed state at short notice.

In this way, a holistic monitoring of the closed state is possible, so that for the first time the obligation to monitor the closed state can be delegated through maintenance contracts. From the resulting protocol of automatic monitoring and the resulting deviations from the required closed state of the monitored fire door, the operator of the fire door can derive further measures, e.g. Staff instructions or the installation of locking devices which, after a predetermined time of an open condition, cause the fire door to return to the closed state, or give a signal indicating a need to return to the closed state.

The fire protection device can be, for example, a fire door, a fire protection door, a fire protection curtain or a fire protection closure, such as a conveyor system termination. In particular, it is a device for the fire-retardant separation of one space from another. The fire protection device may also be a smoke protection door, which may not be fire-proof and serves to prevent flue gases from spreading in the event of fire.

Preferably, the method comprises the step of storing data in a memory, wherein the data encode any times when the fire protection device is in the open state. Alternatively or additionally, times may also be coded in the data at which the fire protection device was in the security state. Of course it is possible to compress or encrypt this data. It can store in or in the immediate vicinity Be provided surrounding the fire protection device. Control personnel can then, for example, read the digital memory with a reading device carried along and then transfer the data to a central computer for evaluation.

Preferably, the method comprises the steps of determining an uninterrupted open time when the fire protection device is in the open state and outputting a signal when the uninterrupted open time exceeds a predetermined threshold. The outputting of this signal may be perceptible or imperceptible. Thus, it is possible that an audible or otherwise perceptible warning signal is emitted into the environment of the fire protection device. It is alternatively or additionally also possible that the signal is sent to a monitoring center, so that appropriate measures can be taken there. Again alternatively or in addition, however, it is also possible that the exceeding of the threshold value is only stored in a digital memory, so that it is noticeable when the digital memory is read out.

The threshold value can be specified as a fixed value. According to a preferred embodiment, however, it is provided that the threshold value is continuously recalculated by determining the average opening time during which the fire protection device is in the open state.

Preferably, the method comprises the step of transmitting a content of the digital memory to a monitoring center.

It is advantageous for many applications if multiple fire protection devices can be monitored. Therefore, according to a preferred embodiment, the method according to the invention comprises the steps of automatically detecting a coding of the fire protection device and associating the data which codes any time points to which the fire protection device in the open state, with the coding. This coding can be stored, for example, in the digital memory and uniquely identifies the respective fire protection device. If the digital memory is read out, for example, with a handheld device or by radio, then the fire protection device transmits, in addition to the data for the opening hours, its identification code identifying it. Should there be any irregularities, the identity of the affected fire protection device can be quickly determined.

Preferably, detecting whether the fire protection device is in the open state comprises detecting a movement of at least parts of the fire protection device. If the fire protection device is, for example, a fire door, jerking or rattling of the door indicates that it does not completely unfold its protective effect against the consequences of fire and does not close tightly.

A fire protection door according to the invention preferably comprises a digital memory, wherein the registration device is set up for storing data in the digital memory which encode any times when the fire protection device is in the open state. This may be, for example, a flash memory or another rewritable semiconductor memory.

Preferably, the fire protection device comprises a frame and a closing element for filling an opening formed by the frame, wherein the detecting device comprises a sensor for detecting a position of the closing element relative to the frame. When the fire protection device is a fire door, the sensor is preferably configured to detect an open door. Alternatively or additionally, the sensor is configured to detect a small movement of the door relative to its frame, such as jerking or rattling.

The fire protection device preferably comprises a power supply device, for example a battery. In addition, a power generating device may be provided, for example a solar cell or a generator driven by a door catcher.

The detection device and / or the registration device may be part of a fitting.

Such a fitting is attached in the immediate vicinity, for example, on the frame or a door leaf of the fire door. It is therefore able to check on the spot of the fire door their closed state. Deviating from the usual closed state of the fire door, if the valve detects its opening state, a pulse is generated in the valve, the emergence of which indicates that the fire door is in the open state. This pulse is stored in a memory, so that it can be reconstructed from the stored pulse and the corresponding time indication, how long the opening state of the fire door has passed and when it returns to the closed state.

According to a preferred embodiment of the invention deviations from the closed state are detected electronically and stored in a memory. These deviations can be read out of the memory at a later time, so that a precise overview of the opening states can be obtained.

According to a further preferred embodiment of the invention, deviations from the closed state are registered in time. As a result, the duration of the opening states can be reconstructed and their cause can be determined.

According to another preferred embodiment of the invention Deviations from the closed state with regard to the duration of their existence registered. Due to the duration of the opening conditions, it can be determined whether these are due to operational reasons or due to a malfunction in the handling of the fire door.

According to a further preferred embodiment of the invention, deviations from the closed state with respect to the time of their beginning and end are registered. By specifying the time during which the opening condition existed, conclusions and inquiries can be made on the basis of which facts the opening condition existed and what measures must be taken to avoid long-lasting opening conditions.

According to a further preferred embodiment of the invention, deviations from the closed state with respect to the number of their occurrence are registered. This number of deviations can be made the subject of considerations of how the number can be reduced in order to achieve as long as possible a closed state of the fire door.

According to a further preferred embodiment of the invention, a closing operation subsequent to opening the fire door is registered and consecutive closing operations are stored. The number of closures may give rise to considerations that changes in operational organization to avoid frequent opening of the fire door.

According to a further preferred embodiment of the invention, the opening time occurring between two consecutive closing operations is measured. The length of the opening time can be a measure of the usual duration of use of the opening to be closed by the fire door.

According to a further preferred embodiment of the invention, the opening time running between two consecutive closing operations is determined and the longest opening times determined in this way are determined and registered.

With regard to these longest-lasting opening hours, measures of an organizational nature may be introduced, as they may be abbreviated.

According to a further preferred embodiment of the invention, a rule opening time is determined from a predeterminable number of opening times and the number of times the rule opening time is exceeded is determined. As a result, irregularities in the use of the opening to be closed by the fire door can be detected and consideration given to how to avoid them.

According to a further preferred embodiment of the invention, a time sequence for a predeterminable number of excesses of the rule opening time is buffered and compared with a time sequence of a previously expired same number of excesses. Also by this comparison measures can be taken to comply with the rule opening time and to avoid deviations.

According to a further preferred embodiment of the invention, the deviations from their respective control opening times are determined by at least two fire doors of a comparable complex and compared with each other. This allows conclusions to be drawn on the respective organizational schemes and, if necessary, reorganizations initiated.

According to a further preferred embodiment of the invention, the closed state of the fire door is detected by a magnetic switch. This will give an impulse if the fire door has been picked up by the frame and the magnetic switch has been closed. Such magnetic switches work very reliable.

According to a further preferred embodiment of the invention, the closing state of the fire door is determined by a proximity switch. When the fire door is unlocked, the proximity switch detects an approach of the fire door towards its frame and emits a corresponding signal. Only when the closed state is reached, the approach of the fire door to its frame is completed, so that the proximity switch can not deliver any further control pulse.

According to a further preferred embodiment of the invention, the closed state of the fire door is determined by a light barrier extending through the frame when the fire door is open. When the fire door is open, a pulse is passed over the light barrier, which activates the signal generator, so that it emits a signal indicating the opening state of the fire door.

According to a further preferred embodiment of the invention, a force exerted by the fire door on its frame pressure is measured and compared a measured value compared with a target value, which is achieved in the closed state of the fire door and below which a pulse is triggered. This closing pressure of the fire door proves to be a reliable feature, due to which the closing state of the fire door can be judged. The exact closing fire door is pressed by its closing mechanism with a largely constant contact pressure in their frames, so that falling below this contact pressure can be regarded as a feature that shows that the Fire door is not locked.

According to a further preferred embodiment of the invention, a pulse is emitted by a sensor in the open state of the fire door, with which a timer is controlled, which measures a time until reaching the closed state and is switched off after reaching the closed state. In this way, it can be controlled how much time is required to restore the closed state of the fire door after switching on the opening of the fire door signaling signal. Due to this time specification measures can be taken to provide a quick remedy for unlocked fire door.

According to a further preferred embodiment of the invention, the time measured by the timer is stored in a memory. The individual values can be taken from this memory and then checked as to whether the times measured in each case are within the limits of a predetermined mediocrity. If necessary, measures can be taken to shorten particularly long opening hours.

According to a further preferred embodiment of the invention, successive opening and closing states including the respective opening times are stored. These registrations can also be retrieved from memory and checked for plausibility. If necessary, measures must be taken to avoid long opening conditions.

According to a further preferred embodiment of the invention, the fire door is optically checked by a supervisor at a longer than average opening state. For this purpose, the already necessary monitoring personnel are available, which can be used specifically to avoid long-lasting opening times.

According to a further preferred embodiment of the invention, a memory is read into an immediate spatial area of each fire door to be controlled. In this way, it is achieved that the fire door is checked at regular intervals for their closed state and it can be made on the basis of the memory result a statement as to whether between two consecutive inspections long-lasting opening times have taken place.

According to a further preferred embodiment of the invention, the content of the memory is delivered to a monitoring center and controlled there. As a result, a continuous monitoring of the closed state is established, which can then be checked to see whether it matches the contents of the memory which has been read in the immediate vicinity of the fire door to be checked.

According to a further preferred embodiment of the invention, a sensor monitoring the closed state is attached to a location which is inaccessible for simulations of the closed state. Such a mounting of the sensor makes it at least difficult to simulate measurement results of the sensor.

According to a further preferred embodiment of the invention, a rotation angle is detected by the sensor, which adjusts depending on the closed state of the fire door in the region of a fire-protection door bearing Angel. Such gauges for detecting a rotation angle have a sensitive setting that indicates whether the setting of the sensor has been subsequently changed.

According to a further preferred embodiment of the invention, the fitting is in a direct spatial relationship with the fire door. In this way it is achieved that they the opening and Closing conditions of the fire door can accurately capture.

In accordance with a further preferred embodiment of the invention, the fitting has a sensor which distinguishes the closed state from the opening state. This direct connection of the valve with the sensor proves to be particularly useful for assembly reasons, especially when replacing a faulty valve.

In accordance with a further preferred embodiment of the invention, the sensor is designed as a magnetic switch which switches off a signal transmitter when the fire door is closed. This magnetic switch has a high reliability and is therefore particularly well suited for the monitoring of fire doors.

According to a further preferred embodiment of the invention, the sensor is designed as a pressure sensor which detects the force exerted by the fire door in the closed state to a surrounding frame pressure. This pressure exerted by a fire door on its frame corresponds to the standard conditions that a fire door must fulfill. It is therefore approximately the same size in all fire doors, so that a deviation from this pressure is interpreted as not sufficiently closing fire door.

According to a further preferred embodiment of the invention, the pressure sensor gives off a pulse to the valve with decreasing pressure. This makes it clear that the closed state of the fire door must be checked and adapted to the required conditions.

According to a further preferred embodiment of the invention, the fitting is mounted on the fire door. In this way, she is very sensitive to movements of the fire door. Besides, she can be on the fire door be easily mounted.

According to a further preferred embodiment of the invention, the fitting is integrated in the fire door. The integration of the valve removes it from access by unauthorized persons.

According to a further preferred embodiment of the invention, the fitting is placed on the frame. In most cases, this assembly meets the monitoring function expected of the fitting. It also has the advantage that, depending on the design of the sensor, an electrical connection via the rotatably arranged fire door does not need to be made.

According to a further preferred embodiment of the invention, the fitting is in radio contact with the monitoring center. This radio contact eliminates the need for expensive laying of cables in the direction of the fire door. However, it requires appropriately trained fittings that are not very cheap.

According to a further preferred embodiment of the invention, the fitting is provided with an optical display of their respective operating state. This can be designed as a relatively cheap component, such as LED. It allows a quick check of the functionality of the valve.

According to a further preferred embodiment of the invention, the sensor is designed as a light barrier extending through the frame when the fire door is open. This generates in the open state of the fire door a pulse that is stored in memory, in the closed state of the fire door no pulse is generated, so that it can be concluded that the desired closed state of the fire door.

According to a further preferred embodiment of the invention, a timer measuring its on-time is connected to the signal generator. It measures the opening and closing times determined by the sensor and places them in the memory accordingly.

In accordance with a further preferred embodiment of the invention, a memory receiving the switch-on and switch-off times of the signal generator is provided. The measurement results taken from the memory about the respective switch-on and switch-off times give a picture of the respective use of the fire door.

According to a further preferred embodiment of the invention, a printer which records the switch-on and switch-off times of the signal generator is connected to the memory. This facilitates the removal of the respective measurement results from the valve and simplifies the evaluation of the stored measurement results.

According to a further preferred embodiment of the invention is aligned with the fitting aligned in the direction of the fire door camera whose images are visible in the monitoring center. This camera allows complete monitoring of the opening and closing states, but is associated with relatively high costs.

According to a further preferred embodiment of the invention, the fitting has an interface, via which a radio contact to the monitoring center can be produced. As a result, the radio contact can be easily prepared and used for monitoring purposes.

According to a further preferred embodiment of the invention, a removal for stored data is provided in the memory. This removal also allows the use of fixed volumes that can be written to in memory and then stored in an archive.

According to a further preferred embodiment of the invention, a printer is provided in the fitting, which is electrically connected to the memory and from which the data stored in the memory are printable. This makes the monitoring of the opening and closing states independent of the use of electronic playback devices.

According to a further preferred embodiment of the invention, an angle encoder is provided at the transition from the frame to the fire door, which measures an existing between the fire door and the frame opening angle and converts a corresponding measurement result into an electrical pulse. These angle encoders are easy to assemble and have a high measuring accuracy, which allows a very sensitive overview of the respective opening and closing states.

It is also possible that the transmitter and the receiver are connected to an electrical control so that a plurality of fire protection devices form a radio network. In this way, additional infrastructure for the signal forwarding to the monitoring center is unnecessary.

Figur 1

eine Draufsicht auf eine geschlossene Tür mit einer auf ihrem Rahmen montierten Armatur,

Figur 2

einen Schnitt entlang der Schnittlinie III in Figur 1,

Figur 3

eine Draufsicht auf eine geschlossene Tür mit einer auf der Tür montierten Armatur,

Figur 4

einen Schnitt entlang der Schnittlinie IVV in Figur 3,

Figur 5

eine Draufsicht auf eine geschlossene Tür mit einer im Schloss der Tür montierten Armatur,

Figur 6

einen Querschnitt entlang der Schnittlinie VII in Figur 5,

Figur 7

einen Schnitt durch eine in ihrem Rahmen in eine Öffnungsstellung verschwenkte Tür mit einem Magnetschalter,

Figur 8

eine Draufsicht auf eine Armatur,

Figur 9

eine Draufsicht auf einen Sensor,

Figur 10

eine Draufsicht auf eine Armatur mit magnetischem Sicherheitsschalter,

Figur 11

einen Schnitt durch eine geöffnete Feuerschutztür mit einem Drehwinkelgeber

Figur 12

einen Schnitt durch eine geschlossene Feuerschutztür mit einem im Bereich der Angeln vorgesehenen Drehwinkelgeber,

Figur 13

eine Schaltskizze einer Armatur und

Figur 14

ein erfindungsgemäßes Feuerschutzsystem.

Further details of the invention will become apparent from the following detailed description and the accompanying drawings, from which preferred embodiments of the invention result. In the drawings show:

FIG. 1

a top view of a closed door with a mounted on its frame fitting,

FIG. 2

a section along the section line III in FIG. 1 .

FIG. 3

a top view of a closed door with a mounted on the door fitting,

FIG. 4

a section along the section line IVV in FIG. 3 .

FIG. 5

a top view of a closed door with a valve mounted in the lock of the door,

FIG. 6

a cross section along the section line VII in FIG. 5 .

FIG. 7

a section through a pivoted in its frame in an open position door with a magnetic switch,

FIG. 8

a top view of a fitting,

FIG. 9

a top view of a sensor,

FIG. 10

a top view of a valve with magnetic safety switch,

FIG. 11

a section through an open fire door with a rotary encoder

FIG. 12

a section through a closed fire door with a provided in the fishing area rotary encoder,

FIG. 13

a circuit diagram of a fitting and

FIG. 14

an inventive fire protection system.

FIG. 1 shows a fire protection device in the form of a fire door 1. The fire door 1 consists essentially of a closing element in the form of a door leaf 2, which is pivotally mounted relative to a frame 5. Die Türplatte 2 ist über einen Tür 5 mit dem Tür 2 verbunden. The door leaf 2 closes the opening formed by the frame 5. The door leaf 2 is protected with a refractory reinforcement, such as steel plates against the action of heat and flames. Between the reinforcement 6, 7 is a filling 8 made of refractory material. Usually, the fire door 1 has a lock 9, with the aid of which the fire door 1 relative to the frame 5 can be locked.

It is assumed that the fire door 1 must be kept constantly in a closed closed state 13, the security state. Only in the closed state 13, the fire door 1 provides its intended safety functions. It is to be monitored at which intervals the fire door is placed in its open state 14, for example in operational passages of the door opening. In addition, the time is to be recorded during which the fire door 1 is in the open state 14. In case of deviations from a given routine, monitoring of the fire door 1 must be ensured.

For monitoring, the fire door 1 has a detection device 15, 16, 17 in the form of a valve 15, 16, 17. The fitting 15, 16, 17 is suitable and arranged to distinguish the securing state in the form of the closed state 13 of the fire door from its opening state 14. The fitting 15 is mounted on the frame 5. With closed fire door 1, the valve 15 generates no pulse. If the fire door 1 is opened, she moves away from the tap. This is then enabled to generate an impulse.

At the in FIG. 3 shown fire door 1, the fitting 16 is mounted on the door panel 2. When the fire door 1 is closed, the armature 16 is in the immediate vicinity of the frame. The delivery of a pulse through the armature 16 is thereby prevented. As soon as the fire door 1 is opened, the armature 16 pivots out of the area of the frame 5. As a result, a circuit is closed within the valve 16, so that the valve 16 emits a pulse.

In order to prevent the fitting 17 being manipulated without authorization, it is installed in an interior space 19 provided inside the door leaf 2. This interior 19 opens in the direction of the frame 5, so that when the fire door 1 is closed, the fitting 17 built into the interior 19 is influenced by the frame 5. In this closed state 13 of the fire door 1, the valve 17 is no impulse. Once the fire door 1 is opened and the armature 17 is pivoted out of the range of the frame 5, a circuit is closed within the armature 17, which is able to emit a pulse via a corresponding pulse generator, not shown, indicating that the fire door 1 is in the open state 14.

The fittings 15, 16, 17 may be formed in various ways. So is in FIG. 7 a magnetic safety switch is provided, which is acted upon in the closed state of the fire door by a coded magnet 21. In this state, the magnet 21 of the safety switch 20 outputs no signal, so that the closed state of the fire door 1 can be assumed. Only after a pivoting of the fire door 1, the magnet 21 is pivoted out of the range of the magnetic safety switch 20. This triggers a pulse on the open Condition of the fire door 1 indicates.

In order to ensure the function of the fire door 1 even in cases where their function is willfully impaired, it must be ensured that the closed state 13 of the fire door 1 is monitored by a sensor 22 whose functional reliability is impaired only with great technical expertise and considerable effort can be. For this purpose, an angle encoder 61 may be provided in the region of a pivot point 62 around which the fire door 1 is pivoted when opening and closing. This angle encoder generates depending on the opening state of the fire door a pulse which is received by a valve 63 which is fixed on the door leaf 2. In the closed state of the fire door 1, the angle encoder 61 does not emit a pulse.

A variety of other sensors are conceivable, which are suitable to deliver a different signal in the closed state 13 of the fire door 1 as in its open state 14 and in the closed state 13 to give no signal.

In FIG. 10 a magnetic safety switch 34 is shown. This consists essentially of a, for example, on the frame 5 to be fastened housing 35, as in FIG. 7 is shown connected to a leg 36 of the frame 5 so that its sensor portion 37 points in the direction of a narrow edge 38 which protrudes in the closed state 13 of the fire door 1 in a corresponding recess 39 of the frame. At this narrow edge 38 of the coded magnet 21 is attached as a sensor 40. This sensor 40 is located with its sensor area 37 to a center of action 41 of the safety switch 34. In this position, the safety switch 34 outputs no signal. Only when the sensor 40 is pivoted together with the fire door 1 in the open state 14, a pulse is generated in the safety switch 34, which is derived via an interface 43 in the direction of a memory 55 in which it is stored.

In addition, provided in the housing 35 of the safety switch 34 interface 43 is connected via radio or via cable to a monitoring center 32. As a result, the monitoring center 32 can convince itself that the faucet 15, 16, 17 is ready for operation. Furthermore, via the interface 43 of the respective circuit state of the valve 15, 16, 17 is sent to the monitoring center 32, which is informed in this way, whether the fire door 1 is in the open state 14 or 13 in the closed state.

FIG. 13 shows, using the example of the valve 16 connected to the door leaf 2, how a method according to the invention runs. In this case, a pulse is received by a pressure-sensitive surface 29 of a sensor 53 as soon as the fire door 1 is opened. The pulse is diverted toward the memory 55 via a timer 57. From the timer, a time t _{1 of} the generation of the pulse is registered. When closing the fire door 1, the pressure-sensitive surface 29 takes on entering the frame 5 on a further pulse, which shuts off the timer 57, so that the time difference ΔT = t ₂ - t ₁ between the start of the timer 57 at time t ₁ to for its shutdown at time t _{2 represents} a measure of the opening of the fire door 1. The content of the memory 55 can be displayed on a monitor 33 of the monitoring center 32. It is also possible to remove the contents of the memory 55 at a removal 56 via a storage medium.

The memory 55 is connected to the interface 43, via which there is a radio contact 59 to the monitoring center 32. In addition, the contents of the memory 55 can also be printed by a printer 58 and removed from this. At the light signal 42, its function can be read during a check of the fitting 16.

The sensor 53 is due to its pressure-sensitive surface 29 in a position to detect a position of the closing element in the form of the door leaf 2 relative to the frame 5. If the door leaf 2 closes the opening formed by the frame 5 only incompletely because the door leaf 2 has excessive play, the door leaf 2 rattles in the event of air pressure fluctuations. It can also flow air between the door leaf 2 and frame 5, so that the fire door 1 does not fully unfold their protective effect and is not in the securing position, but the open position. The rattling of the fire door 1 is detected by the sensor 53 that the pressure-sensitive surface 29 measures a fluctuating pressure and stores in the digital memory 55.

FIG. 14 schematically shows a fire protection system 60, which in addition to the fire protection device in the form of the fire door 1, the detection device 62 has. The detection device 62 comprises the timer 57, the pressure sensor 53 and the digital memory 55. After a predetermined period of time T, which is determined by the timer 57 and, for example, 5 seconds, is from the pressure sensor 53 of the momentarily applied to the pressure-sensitive surface 29 pressure p or a resultant force F is read out and written into the recording device in the form of the memory 55. The pressure p or the force F are associated with the time t _i at which the measured value was recorded. The necessary electrical energy is taken from a battery 64.

In the memory 55 are thereby data that encode whether the fire door 1 at a certain time t _{i was} in the open state, for example because the pressure was above a pressure threshold p _threshold or if the fire door 1 was in the open state, because the pressure Threshold P _{threshold has} not been exceeded. It can also be distinguished whether there was a complete opening state because the pressure was substantially zero or if the fire door 1 was half closed with game. In this case, the pressure p varies.

To read out the memory 55, a read-out device 66 is brought into the vicinity of the transceiver unit 59. The readout device 66 sends an authentication code identifying it as read-only. Then, the detection device 62 sends by means of the transmitter 59, an identification code that uniquely identifies the fire door, and the data from the memory 55 to the read-out device 66, which stores the data, for example, a flash memory.

After a plurality of fire protection devices, for example in the form of fire doors 1, has been read, the data stored in the flash memory is transferred to the monitoring center 32 and evaluated there.

The fire door 1 is constantly determined by means of an evaluation unit the time .DELTA.t = t ₁ - t, which has elapsed since the time t ₁ , at which the fire door 1 has been brought from the securing state in the open state. If a threshold Δt _{threshold is} exceeded, an optical signal is output via the signal light 42. Alternatively or additionally, a radio signal can also be emitted and / or an acoustic signal can be output.

According to a further embodiment, the fire door 1 is in regular contact with the monitoring center 32 at regular intervals.

The fire protection device may for example also be a fire door, a smoke protection door or a noise protection door.

Claims (15)

Method for monitoring a fire protection device (1), which in - A security state (13) in which the fire protection device (1) fully unfolds its protective effect against fire consequences, and an opening state (14) in which the fire protection device (1) does not fully unfold its protective effect, can be brought, with the steps: (a) automatically detecting whether the fire protection device (1) is in the open state (14) or brought into the open state, and (b) automatically registering whether the fire protection device (1) is in the open state (14) or brought into the open state. Method according to claim 1, characterized by the step: (c) storing data in a memory (55) encoding any times (t ₁ ) when the fire protection device is in the open state. Method according to one of the preceding claims, characterized by the step: - If the fire protection device (1) in the open state (14), determining an uninterrupted opening time (.DELTA.t) and Outputting a signal when the uninterrupted opening time (At) exceeds a predetermined threshold. Method according to one of the preceding claims, characterized by the step: - Transferring a content of the memory to a monitoring center (32). Method according to one of the preceding claims, characterized by the step: - Automatically detecting a coding of the fire protection device (1) and Associating the data encoding any times (t ₁ ) the fire protection device is in the open state with the coding. Method according to one of the preceding claims, characterized in that detecting whether the fire protection device is in the open state comprises detecting a movement of at least parts of the fire protection device. Fire protection device, in particular fire protection door, in a safety state in which the fire protection device (1) fully unfolds its protective effect against the consequences of fire, and an opening state (14) in which the fire protection device (1) does not fully unfold its protective effect, can be brought, with: (A) a detection device (15, 16, 17, 20, 21, 34, 40) for automatically detecting whether the fire protection device (1) in the open state (14) or is brought into the open state, and (B) a registration device (55) which is adapted to automatically register whether the fire protection device (1) in the open state (14) is or is brought into the open state. Fire protection device according to claim 7 , characterized in that the registration device (15, 16, 17) - Includes a digital memory (55) and - Is set up for storing data in the digital memory (55), which encode any time points (t _i ) to which the fire protection device in the open state (14). Fire protection device according to claim 8, characterized by a transmitter (59) arranged to transmit data from the digital memory (55). Fire protection device according to one of claims 7 to 9, characterized by a frame (5) and a closing element (2) for closing an opening formed by the frame (5), - wherein the detection device comprises a sensor (29, 53) for detecting a position of the closing element (2) relative to the frame (5). Fire protection device according to claim 10, characterized in that the sensor is designed as a pressure sensor which detects the pressure exerted by the fire door (1) in the closed state (13) on a surrounding frame (5) pressure (p). Fire protection device according to one of claims 7 to 11, characterized by a receiver for receiving control signals, in particular radio signals, and - wherein the detection device is connected to the receiver and is arranged to detect whether the fire protection device is in the open state when the receiver receives a corresponding control signal. Fire protection device according to one of claims 7 to 12, characterized by a power supply device. Fire protection system with - At least one fire protection device according to one of claims 8 to 12 and - A read-out device for reading the digital memory. Fire protection system with - At least two fire protection devices according to one of claims 9 to 11 and - A monitoring center, which is adapted to receive signals, in particular radio signals, from the fire protection devices.

Images