EP2725172B1 - Method for operating a rescue path device and rescue path assembly - Google Patents

Description

The invention relates to a method for operating an escape route device and an escape route arrangement.

In an escape route there are one or more doors which are locked in a normal state by means of a locking device. In an emergency, it should be possible for persons to reach through these doors to a stairwell or corridor or directly to the outside. These persons must be able to unlock the door. For this purpose, an emergency switching device is provided which includes an emergency switch which is typically manually operable by an operator.

The invention is concerned with the question of how to unlock the locking member can be effected due to an operation of the emergency switch.

In the prior art, there is an electrical line from the emergency switch to the locking device. About this electrical line, the locking device is supplied with an operating voltage. The locking device works here with the so-called closed-circuit principle, d. H. Upon application of electrical components such as a solenoid with current, a locking element is held in a locking position. Upon actuation of the emergency switch, the operating voltage required for this purpose is now switched off. Thereby, the locking device can no longer hold the locking element in the locking position, and there is the desired unlocking.

The company DORMA Holding GmbH & Co. KGaA from Ennepetal, Germany, the use of a data bus at a rescue route, which is associated with a door, known under the name DCW. The data bus couples a control unit provided for a single door with other devices, such as an emergency switching device and a locking device. For example, when the emergency switching device is actuated, it can be ensured that an alarm is issued.

The safety-relevant function that causes the locking device unlocking the door when you press the emergency switch, but as already known realized, there is still a separate wire between the emergency switching and the Locking device, via which an operating voltage for the locking device is provided.

The laying of such a wire line is costly in the installation of a rescue route arrangement. In particular, when there are a plurality of emergency switches, for example on the door and two side walls and possibly still in a central building, several wires must be provided. So it is a very high installation effort required. There is also the risk that errors are made during assembly that affect the operability of the escape route arrangement.

The WO 03/078769 A1 . DE 199 43 041 A1 , and EP 1 066 577 A2 disclose door security devices with an emergency stop switch and a door lock, which are interconnected via a bus system.

Furthermore, from the DE 102 32 272 A1 a control system for a door system is known which has a plurality of door modules connected to one another via bus systems, in which a priority-oriented collision control takes over the bus allocation while simultaneously transmitting a plurality of transmissions.

The object of the invention is to show a way, especially with very complex rescue route devices with a plurality of doors and door parts or even with a plurality of components on such doors, the function of the unlocking of the door can be reliably ensured upon actuation of the emergency switch, without that the installation effort and the associated costs are too high.

The object is achieved in one aspect by a method having the features according to claim 1 and in another aspect by an escape route arrangement having the features according to claim 5.

In the invention, it is thus provided that the safety-relevant function is ensured by communication via a time-controlled or event-controlled data bus, wherein the signal in the time-controlled data bus in a next time slot or in an event-controlled data bus Avoiding data collisions is sent as the next event. In this way, it is possible to dispense with the cabling between the emergency switch and the locking device (eg additional to an optionally existing data bus). By saving cables, the clarity can be improved.

The operation of the emergency switch thus no longer leads directly to an unlocking, but it is first detected by the emergency switching device (in particular electronically detected). The emergency switching device transmits this information via the data bus to the locking device, which then, in particular using a predetermined criterion, can test for the condition of the condition (s) for unlocking and then just in this given state unlocks the door by the locking device.

By separating the operation of the emergency switch from effecting Entriegelns it is particularly possible to provide an arrangement in which a plurality of emergency switch with associated emergency switching device can be actuated in each case and can cause unlocking at one or more locking devices. Or it is possible that a single emergency switch allows unlocking at several locking devices at the same time. In conventional arrangements, the cabling effort here would be disproportionately large, but the onset of a data bus provides an elegant solution to how such arrangements can be realized.

By separating the operation of the emergency switch from effecting Entriegelns it is also possible in particular to combine the unlocking with an additional condition. For example, the additional condition may be that a predetermined period of time has elapsed (in particular after the emergency switch has been actuated). If, after detecting the signal, the locking device allows a predetermined period of time to elapse before it unlocks the door, not every person can actuate the door Emergency switch immediately leave a building. This measure is particularly useful in a department store, if it is to be avoided that department store thieves leave the department store with stolen goods on the escape routes. In this case, pressing the emergency switch may be accompanied by a loud alarm or at least a message to a control room. During the passage of time, responsible persons in the department store can check whether a dangerous situation actually prevails or whether the emergency switch has been improperly operated. For example, the control room can use a camera to check the area of the escape door.

An embodiment may be desirable in which, during the predetermined period of time, the interlocking means checks to see if a predetermined further signal is received, and upon receipt of the predetermined further signal, extends the predetermined period of time. Here, for example, a person at the control room could release the predetermined further signal by actuating an actuating element such as a button, thereby causing the delay in the unlocking of the door to be prolonged. If necessary, even the already initiated process of unlocking the door can be completely interrupted.

The fact that the interlocking device checks incoming signals in the data bus can be used as part of an additional security measure in that the emergency interrupter repeatedly emits a signal indicating its operability at regular intervals or with predetermined events and the interlocking device receives this signal. The locking device checks according to a predetermined criterion, whether the signal has been missed and unlocks the door, if the predetermined criterion is met, regardless of whether the Emergency switching device has reported the operation of the emergency switch or not. The predetermined criterion may include, for example, that a predetermined number of times the signal has not been delivered at regular intervals, or that a certain number of the predetermined events have occurred without the signal being delivered.

Alternatively, it can be provided that the emergency switching device repeatedly checks at regular intervals or with predetermined events checks its own operability, but only then - then the inability to report - emits signal when the result of the test is negative. The locking device also receives this signal indicating the inability to operate and then unlocks the door, if a predetermined criterion is met, regardless of whether the emergency switching device has reported the operation of the emergency switch or not.

The operability is preferably checked in the following manner: The emergency switch closes in the non-actuated state, two electrical circuits which are decoupled from each other. The emergency switching device has at least two data processing devices (which may be designed, for example, as a microprocessor or microcontroller). Each data processing device is coupled to another of the electrical circuits. Each data processing device can check the functionality of the circuit by outputting a test signal at an output and transmitting it via the circuit while receiving this test signal; as soon as the test signal is missing, the respective data processing device outputs a signal indicating the inability to work on the data bus. Alternatively, upon receipt of the test signal, a Operational signaling signal either by each data processing device are sent out individually, or it can be sent out a coordinated signal such a common, if the result of the test is positive in both data processing equipment.

The escape route arrangement according to the invention is based on at least one door. We distinguish between the escape route device which comprises the door itself and the escape route arrangement which does not include the door itself, but only the installations (which are mechanical, electrical and / or electronic) provided on this door or several doors.

The escape route arrangement comprises at least one door a locking device for locking this door, possibly also a plurality of locking devices. It comprises at least one emergency switching device associated with this door with an emergency switch, possibly also several such emergency switching devices. In one variant, one or more emergency switching devices are each assigned to exactly one door. But it can also be provided one or more higher-level emergency switching devices, which are assigned to several doors or locking devices at the same time. Furthermore, the emergency route arrangement has at least one data bus which connects the locking device assigned to it to one door and the one or more emergency switching devices associated therewith. It is envisaged that each emergency switching device coupled to a data bus of the at least one data bus is designed to electronically detect an actuation of the associated emergency switch and send a signal indicating this actuation via the data bus to each locking device which serves to lock a door. which belongs to the one or more doors associated with the emergency switching device. The locking device should then, at least in a basic mode, be designed in turn to unlock the door upon receipt of the signal indicating the operation.

Due to the interaction of the present bus subscribers "emergency switching device" and "locking device", a door-specific associated control device, as used for example in the above-mentioned system DORMA Holding GmbH & Co. KGaA, completely unnecessary.

The escape route arrangement is particularly easy to install because security-relevant functions are also provided by communication via the data bus. An additional wiring is therefore unnecessary.

The data bus used can be a time-controlled data bus or an event-driven data bus. According to the invention, each emergency switching arrangement coupled to a data bus is designed to transmit the signal reporting the actuation as directly as possible, for a time-controlled data bus in a next time slot, for an event-controlled data bus, avoiding data collisions as the next event.

This has the consequence that the locking device as soon as possible has the information that the emergency switch has been actuated.

On the other hand, the locking device does not then immediately cause the unlocking; Rather, each locking device coupled to a data bus is preferably designed to let elapse after a electronic detection of a signal indicating the operation of an emergency switch a predetermined period of time before the door can be unlocked. Either the door is unlocked immediately after the lapse of the predetermined duration, or it is checked for a predetermined criterion.

Such a check preferably takes place before or during the predetermined period of time. It is checked for the reception or non-reception of at least one predetermined further signal, according to a predetermined criterion. Upon satisfaction of the predetermined criterion, the predetermined period of time is extended or the door is not unlocked, but if the predetermined criterion is not met, the door is unlocked.

As already described in the corresponding method above, the predetermined further signal can be, for example, one of a central unit assigned to a plurality of doors, for example a control room in a building. In the example, a guard watching the door with the emergency switch via a camera or the like blocks unlocking the door if he sees an operator, whom he considers unauthorized, or if he does not consider the hazard to be a given.

In a preferred embodiment of the escape route arrangement, the emergency switching device comprises on the at least one door, preferably each emergency switching device, at least two data processing devices, in particular microprocessors or microcontrollers, which preferably each check the operability of a part of the emergency switching device, namely each of a circuit that is opened when you press the emergency switching device.

Likewise, two or three data processing devices can be provided on the locking device.

The checking of the parts of the emergency switching device preferably takes place in such a way that a first data processing device transmits a test signal via the first circuit and at the same time receives it via this. The second data processing device accordingly sends out a test signal and receives it. As soon as the test signal fails in a data processing device, a predetermined signal is output to the data bus, which is recognized by the locking device as a signal indicating the inability of the emergency switching device, whereupon the locking device then unlocks. It may also be that, each time the test signals are received by each of the data processing devices (for example, represented by a data processing device), they emit a signal indicative of operability, otherwise the latch unlocks. The respective signals are either delivered directly to the data bus by the data processing devices, but they can also be delivered instead of the data bus to another data processing device, which then outputs the predetermined signal to the data bus.

The data bus may comprise more than just the emergency switching device and the locking device, for example, a Input / output device to be connected or connectable to at least one of the data buses. In this way, by means of such an input / output device unlocking can be effected, or other components of the Rettungsweganordnung can be controlled. In addition, signals can be interrogated, for example, via the input / output device and the signal indicating the operation signal can be detected and a corresponding display can be provided.

The emergency route arrangement can in particular be related to a plurality of doors, to each of which a data bus with a locking device connected thereto and optionally an emergency switching device is assigned. These data buses are in particular separate data buses, which are also coupled to each other via a respective gateway, wherein for coupling a further data bus is provided.

In this way, the data buses can be tailored to the particular requirements. By way of example, the data bus assigned to each door can be a CAN data bus, whereas the further data bus, which is coupled to the CAN data buses via a gateway, can be an Ethernet data bus.

At least one emergency switching device, which can be actuated by a human being, for example, is provided on the further data bus, for example for the central control of one or more locking devices, and / or at least one further other input and / or output device is provided. This input and / or output device can query the components on the data buses assigned to the doors, for example the emergency switching devices, and in this case they can, for example, control the actuation an emergency switch receiving signals. The input and / or output device can also be used to control one or more of the locking devices via the data bus. Thus, a person in a control center in a building with a plurality of doors to which a common escape route arrangement is assigned can vary the safety function, for example delaying the unlocking of a door. An operator may receive signals via the input / output device and display a status and then respond with an input.

Preferably, the at least one basic mode can be left. In this case, a second emergency switching device should be provided. It can be provided, in particular, that the locking devices are put into a special mode by actuating an actuating element. A feature of the special mode is that the locking device does not unlock the door on a signal indicating the operation of an emergency switch of a first emergency switching device, but that the door can be unlocked only by means of the second emergency switching device (that the locking device is designed in the special mode, only one) the operation of an emergency switch of a second emergency switching device signaling signal to unlock the door). This measure is particularly useful for night operation: If there are no people in the building, the local emergency switching devices can be disabled (by signals emitted by them is no longer responding), and then it only needs a central emergency switching device. In this case, it can be provided that the second emergency switching device emits a signal emitting its operability, and that the locking device, in the absence of this signal, returns to the basic mode, so that unlocking can always be effected in at least one way (Actuation of the emergency switch of the first emergency switching device or of an emergency switch of the second emergency switching device).

Furthermore, a central control device may alternatively or in particular additionally be connected to the further data bus, possibly even a redundant additional control device, which is preferably designed as a copy of the central control device, in order to replace it in the event of a failure of this central control device.

• Fig. 1 eine Tür mit daran angeordneten Komponenten einer Rettungsweganordnung zeigt, die über einen Datenbus miteinander gekoppelt sind,
• Fig. 2 einen Prinzipaufbau zur Erläuterung des Datenbusses einer Rettungsweganordnung zeigt, die auf eine Mehrzahl von Türen bezogen sein kann,
• Fig. 3 einen Prinzipaufbau zur Erläuterung des Datenbusses einer Rettungsweganordnung in einer Abwandlung der Rettungsweganordnung von Figur 2 zeigt und
• Figur 4 einen Prinzipaufbau zur Erläuterung des Datenbusses einer Rettungsweganordnung zeigt, die auf nur eine Tür bezogen ist.

Hereinafter, a preferred embodiment of the invention will be described with reference to the drawings, in which

• Fig. 1 shows a door with components of an escape route arrangement arranged thereon, which are coupled to each other via a data bus,
• Fig. 2 shows a principle structure for explaining the data bus of an escape route arrangement, which can be related to a plurality of doors,
• Fig. 3 a principle structure for explaining the data bus of an escape route arrangement in a modification of the escape route arrangement of FIG. 2 shows and
• FIG. 4 shows a principle structure for explaining the data bus of a rescue route arrangement, which is based on only one door.

An in FIG. 1 shown and generally designated 10 escape door, also referred to as a panic door, comprises an active wing 12 and a passive wing 14. The active wing 12 can be opened independently of the passive wing 14. The passive wing 14 can only be opened when the active wing 12 is open. The invention is also in a single-leaf door feasible. In this case, simply eliminates the passive wing 14, the one-door has, for example, all the properties of the active wing 12th

The door has a lock 16, the one in the FIG. 1 not visible trap and / or has a latch by means of which or the active wing 12 is locked to the passive wing 14. The passive wing 14 comprises a so-called passive wing lock, which locks the passive wing to a door frame 20. The lock can be opened by pressing a push rod. In the present case, push rod parts 18a and 18b extend over the active wing 12 and the passive wing 14. However, the invention is also feasible when a lock is to be opened by operating a pusher or a handle bar. In addition, several locks can be provided at the same time, which can be opened independently of each other by the same actuator or more actuators.

In the present case, without further action, the door 10 would be open at any time by pushing one of the pressure rod parts 18a and 18b in the direction of the leaf of the respective door leaf 12 or 14. To prevent people from abusively leaving a building or giving other people access to a building, a life-saving door is locked. For example, the door 10 is locked by locking each of the two door leaves 12 and 14 at an upper area on the door frame 20. The locking can be done in particular by means of locking bars. For this purpose, the active door leaf 12 has a locking device 22, the passive door leaf 14 a locking device 24. The two locking devices 22 and 24 can each have an electromagnet include. Preferably, the quiescent current principle is used here: As long as the electromagnet is energized, the door 10 is locked. As a locking device according to the present invention, however, is basically to see that locking device that prevents opening of the door 10. In particular, a locking device may also be provided in or on the actuating element with which the lock is opened, for example on one of the pressure rod parts 18a and 18b. In this case, the actuator is blocked.

In all embodiments, the following applies:
Unlocking should be done when an operator operates an emergency switch. This is shown here arranged on the push rod portion 18a of the active wing 12 and symbolically for a whole emergency switching means standing 26. Emergency switches can also be arranged at other locations of a door or on a wall next to the door frame 20. It can also be triggered by a built-in push rod switch an emergency switching function.

The FIG. 1 additionally shows a data bus 28. This couples the emergency switch 26 (in in FIG. 1 The power supply 32 is an electronic component that ensures the voltage of a power grid or an emergency power supply and corresponding signaling signals on the Data bus 28 sends.

The data bus 28 should in particular be a CAN bus. In a building, several doors can be sorted according to type FIG. 1 door shown 10 elements or components that are coupled to each other via such a CAN data bus in the manner of the data bus 28. In addition, there should be a central data bus in the building. Each data bus 28 is for this purpose coupled via a gateway 34 with the central data bus 36. The central data bus 36 may in particular be an Ethernet bus.

The data bus system is based on FIG. 2 illustrated again separately together with the associated bus subscribers and in FIG. 2 in the whole with 100 designates. In this case, the area of the CAN data bus 28 with associated gateway 34 is delimited by the dashed line. This area is designated 10A because it is the part of the installation on the door 10 which is part of the overall escape route arrangement. The FIG. 2 shows the coupling of only one CAN data bus 28 via an associated gateway 34 to the Ethernet data bus 36. In a real implementation, several such data buses 28 are usually connected via an associated gateway to the Ethernet data bus. The other data buses may all be similar, although they may differ in the nature of their bus subscribers. For example, a single emergency switching device 26 is illustrated as a bus subscriber for the data bus 28, but in the case of other data buses, a plurality of emergency switching devices may be provided.

To the CAN data bus 28 are in FIG. 1 shown bus participants 22, 24, 26, 30 and 32 are connected (of which the bus subscriber 24 in FIG. 2 not explicitly shown). However, other bus subscribers may also be provided, namely electric door openers, locks and devices for identifying a user (for example via a keyboard code to be entered or wireless, for example by means of RFID elements). Other bus subscribers may be a power supply for the arrangement, connectable service devices, or other interfaces for connecting external devices via inputs and outputs, or also interfaces to external access control systems.

Connected to the central Ethernet bus 36 as a bus subscriber is a central controller 38, which can perform certain monitoring tasks in a manner known per se from such systems. A second control device 40 can be provided, which is either an immediate copy of the control device 38 or is slimmed down by a few functions, and which serves as a fallback option (backup) in the event of a failure of the control device 38.

Furthermore, a further emergency switching device 42 connected to the Ethernet bus 36 can be provided in a central building. This can be designed in the same way as the emergency switching device 26, so that an operator in a central building can quickly unlock one or more locking devices.

In the same way there is an input / output device, for example in the manner of a touch screen with associated data processing device: On the touch screen 44, the symbols of several doors can be seen, and by pressing an icon can then be done at the respective door unlock or be delayed delayed or even prevented.

Further bus participants on the Ethernet 36 are in FIG. 2 labeled 46, 48, 50, 52. These can be conventional buses known from data buses Take over functions. For example, a first bus user 46 is an interface to a building management system. A second bus subscriber 48 is an interface for enabling a central configuration of the overall system. A third bus subscriber 50 is an interface for providing visualization of status information and events communicated over the Ethernet data bus 36 or the data bus 28. In addition, messages and control commands via a fourth interface 52, which is designed as a network interface, are transmitted.

The operation of the rescue route arrangement is the following:
Upon actuation of the emergency switch, the emergency switch 26 immediately (eg, in a next possible time slot assigned to the emergency switch 26) sends out a signal indicative of the actuation, via the data bus 28. The interlocking devices 22 and 24 can receive the signals as bus subscribers , Upon receipt of the signal, they cause the two door leaves 12 and 14 to be unlocked. However, this unlocking can be staggered in time, the locking devices 22 and 24 can each wait for a predetermined period of time before unlocking takes place. During this period, an alarm can sound, and in a central office, an operator can use cameras to check whether the person who operated the emergency switch was even authorized. In the event that a danger prevails, unlocking the door can possibly even be accelerated by entering on the touch screen 44 in the center. If the operating person was not authorized, the same can be done by input on the touch screen 44 be extended to unlock the door leaves 12 and 14, or that the unlocking is even completely prevented.

In a hazardous situation, irrespective of whether an emergency switch 26 provided locally on a door is actuated via the central emergency switching device 42 and the emergency switch S or the input / output device (touch screen) 44 located therefrom, a plurality of locking devices, if appropriate, can be actuated different doors, to be controlled.

In the emergency switching device 42, the operation of the Rettungsweganordnung is exactly the same, except that the emergency switching device 42 sends a signal indicating the operation first via the Ethernet data bus 36, and that this signal then passes through the gateway 34 in the CAN data bus 28 to from the interlocking devices 22 and 24 are received. Inasmuch, as in the present application of a data bus is mentioned, therefore, in principle can also together via a gateway coupled data buses together form a data bus, regardless of which protocols are used in the individual parts of the bus.

Equally, it can also be provided that the control device 38, which is coupled with smoke detectors, for example, and can detect a danger, automatically controls corresponding locking devices 22, 24 of a plurality of escape route arrangement parts in the manner of the arrangement 10A on the door 10 in order to unlock the doors to effect.

In order to avoid that a door is not locked because of a defective emergency switch, it is preferable to regularly check the emergency switch. In the present case, it is essential that each emergency switching device 26 is associated with two circuits, whereby by actuating the actual emergency switch S contacts K1, K2 are opened and thus both circuits are opened. This opening of the circuits is detected. In the present case, microprocessors 54 and 56 are provided, and each is associated with a circuit and thus with one of the contacts K1 and K2, respectively. For example, the microprocessor 54 via an output to send a test signal in the circuit to the contact K1 and at the same time detect this via an input. The same applies to the second microprocessor 56, which can output a test signal at an output and detect it at an input. If the test signal that was transmitted is no longer received by one of the two microprocessors 54, 56, the emergency switch is obviously no longer functional. In this case, one of the microprocessors 54 or, if appropriate, both microprocessors 54, 56 transmit a signal indicating the inoperability of the emergency switching device 26 via the data bus 28 to the other bus users, inter alia also to the locking devices 22 and 24. The locking devices 22 and 24, It is alternatively possible that the microprocessors 54 and 56 respectively or both together regularly or event-controlled output a signal indicating the operability, and that the locking means 22 and 24 in the absence of such a control signal according to a predetermined criterion - for example, if it is sent at regular intervals, across three time intervals - for the sake of safety, the unlocking of the respective door leaf 12 and 14 effect.

The emergency switching device 42 may also have two microprocessors 58 and 60 which analogously monitor two contacts K3 and K4 in respective circuits and emit corresponding signals as described above.

Both the emergency switching device 26 and the emergency switching device 42 may also be provided with three microprocessors or more microprocessors instead of the two microprocessors 54, 56 or 58, 60 shown, or other data processing devices such as microcontrollers and the like.

The presence of the emergency switching device 42 can also be used to prevent the effectiveness of an operation of the emergency switch of the emergency switching device 26: In a building such as a department store at night no people should be located. It is therefore desirable that unauthorized persons (such as burglars) in the building can leave the building by operating the emergency switch of the emergency switching device 26. This can be solved by the fact that the locking devices 22 and 24 simply no longer respond to the signals from the emergency switching device 26. For this they are transferred from a basic mode to a night mode (special mode). This transfer can be done by sending a signal over the data bus 28 and, if necessary, 36. This signal may be transmitted by means of an actuator (such as the input / output device 44 or a local input device connected to the data bus 28). The locking devices 22 and 24 can also be designed to be in the absence of a operability of the emergency switching device 42 signaling signal again from the night mode in to return to the basic mode, so that at least one functional emergency switching device is assigned to each of the two locking devices 22 and 24, via which unlocking is enabled upon actuation of the associated emergency switch.

Under modification of the rescue route arrangement FIG. 2 can according to FIG. 3 be provided that in the region of a door no separate emergency switching device is provided, but that there is only provided in the center in the building emergency switching device 42. The situation according to FIG. 2 and FIG. 3 may also occur in mixed form, ie with an emergency switching device 26 on a first door 10 and without emergency switching device on another door; the first door 10 can then be unlocked both by the emergency switching device 26 and by the emergency switching device 42, the other door exclusively via the central emergency switching device 42nd

Based on FIG. 4 It can be seen that the inventive concept can also be implemented only in a one-door system. Here, there is no need for a central data bus 36 and therefore also no gateway 34. In a building, several doors can be equipped as in FIG. 4 shown without there being a central data bus 36 common to these multiple doors. This does not exclude that in the same building at the same time also a multi-door system of reference to FIG. 2 or 3 described type is provided at the same time.

In the present case, it is assumed that the emergency switching device comprises a separate emergency switch. In the context of the invention, however, the emergency switching device may also be a device which actuates a Detected pressure or handle bar or a pusher on a door fitting and then triggers a Notschaltfunktion. In this case, the emergency switch is the same as the actuator. In fact, it can be useful for an escape door to be opened by actuating the actuating element for opening the lock, in which case unlocking of the unlocking device is then effected at the same time. This is particularly useful if the unlocking is time-delayed as shown above and can be prevented by a control room in a building. A fleeing person who wants to open the lock, sets the mechanism for unlocking the door at the same time, without being aware of it.

It should be noted that a separate control device in the region of the respective escape route arrangement parts 10A can be dispensed with by the communication of the individual bus users 26, 42, 22, 24 with one another. To a certain extent, the individual bus subscribers sort out all situations and do not require a central control which would be associated with the door 10.

Overall, the inventive concept of electrically disconnecting the emergency switching device (s) from the locking device (s) on the same door, and instead sending only a (coded) message over a bus, which is then processed by the interlocking devices, is a plurality of Modifications of the procedure possible. Completely new algorithms can realize completely new requirement profiles.

LIST OF REFERENCE NUMBERS

K1

first contact

K2

second contact

S

Emergency switch

10

door

12

active wing

14

passive wing

16

lock

18a u. 18b

Push rod parts

20

door frame

22, 24

locking device

26

emergency engagement

28

CAN data bus

30

Input / output device

32

bus users

34

gateway

36

central Ethernet data bus

38

central control device

40

further control device

42

emergency engagement

44

Input and / or output device (touch screen)

46, 48, 50, 52

further bus participants

54, 56, 58, 60

microprocessors

100

rescue arrangement

Claims (13)

1. Method for operating an escape route device having a door (10) locked by means of a locking device (22, 24) and an emergency switch device (26) having an emergency switch (S) for effecting the unlocking of the door (10), having the successive steps:

   - detecting an actuation of the emergency switch (S) by the emergency switch device (26),

   - emitting a signal signalling the actuation of the emergency switch (S) by the emergency switch device (26) via a time-controlled or an event-controlled data bus (28) to the locking device (22, 24), by the signal being sent in the next time slot with the time-controlled data bus (28) or the signal being sent as the next event with an event-controlled data bus, avoiding data collision,

   - receiving and detecting the signal by the locking device (22, 24),

   - unlocking the door by the locking device (22, 24).
2. Method according to claim 1, in which the locking device (22, 24) allows a predetermined time period to pass after detecting the signal, before it unlocks the door, wherein it is preferably checked by the locking device (22, 24) during the predetermined time period whether a predetermined further signal is received, and wherein the predetermined time period is extended if the predetermined further signal is received.
3. Method according to claim 1 or 2, in which the emergency switch device (26) repeatedly emits a signal reporting its operating capability at regular time intervals or linked to predetermined events, and the locking device (22, 24) receives this signal and also unlocks the door on detecting the absence of the signal according to a predetermined criterion, and/or the emergency switch device (26, 42) repeatedly checks its operating capability at regular time intervals or linked to predetermined events and, on establishing an operating inability, emits a signal reporting this operating inability, and the unlocking device (22, 24) receives this signal and also unlocks the door on detecting the signal according to a predetermined criterion.
4. Method according to claim 3, in which the emergency switch (S) completes two circuits in the non-actuated state, and the emergency switch device (26, 42) has at least two data processing devices, in particular microprocessors or microcontrollers (54, 56, 58, 60), of which a first data processing device (54, 58) is coupled to a first circuit with both an output and an input and sends a checking signal via this first circuit, and of which the second data processing device (56, 60) is coupled to the second circuit with both an output and an input and sends a checking signal via the second circuit, and wherein each data processing device is configured to emit the signal reporting the operating capability to the data bus (28) or a further data processing device on receiving the checking signal or to emit a signal reporting operating inability to the data bus (28) or a further data process device in the absence of the checking signal.
5. Escape route arrangement (100) in relation to at least one door (10), wherein the escape route arrangement (100) relating to at least one door (10) comprises a locking device (22, 24) for locking this door (10) and an emergency switch device (26, 42) allocated at least to this door (10) having an emergency switch (S), which can be actuated in particular by a person, wherein the escape route arrangement (100) has at least one time-controlled or event-controlled data bus (28, 36), which, for a door (10), connects the locking device (22, 24) allocated to it and the emergency switch device (26, 42) allocated to it to each other, characterised in that
   each emergency switch device (26, 42) coupled to a data bus (28, 36) of the at least one data bus (28, 36) is configured to electronically detect the corresponding emergency switch (S) being actuated and to send a signal reporting this actuation via the data bus (28, 36) to the locking device (22, 24), which is configured in at least one basic mode to subsequently unlock the door (10), and each emergency switch device (26, 42) coupled to a data bus (28, 36) is configured to emit the signal reporting the actuation as soon as possible by emitting the signal in the next time slot with the time-controlled data bus (28) or emitting the signal as the next event avoiding data collision with the event-controlled data bus (28).
6. Escape route assembly (100) according to claim 5,
   characterised in that
   each locking device (22, 24) coupled to a data bus (28, 36) is configured to allow a predetermined duration to pass after electronically detecting a signal reporting the actuation of an emergency switch (S), wherein
   the locking device (22, 24) is preferably designed to check for the receipt or non-receipt of at least one predetermined further signal before or during the predetermined time period according to a predetermined criterion and to extend the predetermined time period or not to unlock the door (10) if the predetermined criterion is fulfilled and to unlock the door (10) if the predetermined criterion is not fulfilled.
7. Escape route arrangement (100) according to one of claims 5 or 6,
   characterised in that
   the emergency switch device (26) comprises at least two, preferably three, data processing devices, in particular microprocessors or microcontrollers (54, 56, 58, 60), which preferably each check the operating capability of at least one part of the emergency switch device (26, 42).
8. Escape route arrangement (100) according to claim 7,
   characterised in that
   the emergency switch (S) completes two electric circuits in the non-actuated state, and a first data processing device (54, 58) is switched in a first circuit, and a second data processing device (56, 60) is switched in a second circuit, and the two data processing devices (54, 56; 58, 60) are designed to send a checking signal via the respective circuit and, at the same time, to receive the checking signal and to emit a predetermined signal to the data bus (28, 36) or a further data processing device in its absence detected according to a predetermined criterion.
9. Escape route arrangement (100) according to one of claims 5 to 8,
   characterised in that
   an in/output device (30) is connected or can be connected to at least one of the data buses (28).
10. Escape route arrangement according to one of claims 5 to 9, in relation to a multitude of doors, to each of which one data bus (28) with a locking device (22, 24) connected thereto is allocated, characterised by a further data bus (36), which is coupled to the other data buses (28) via a gateway (34) in each case.
11. Escape route arrangement (100) according to claim 10,
    characterised in that
    at least one emergency switch device (42) and/or at least one other in- and/or output device (44) and/or a central control device (38) and, if necessary, a hereto redundant further control device (40) is or are connected to the further data bus (38), wherein preferably

    a) a single emergency switch device (42) of the escape route arrangement (100) is arranged on the further data bus (36), or

    b) a data bus (28) is allocated to at least one of the doors, to which data bus (28) both a locking device (22, 24) and at least one emergency switch device (26) is connected.
12. Escape route arrangement according to one of claims 5 to 11,
    characterised in that
    a multitude of emergency switch devices (26, 42) is configured in each case to electronically detect the corresponding emergency switch (S) being actuated and to send a signal reporting this actuation via the data bus (28, 36) to one or more locking devices (22, 24), which is or are configured to unlock the door (10) on receiving a signal reporting such an actuation from at least one of the one or more emergency switch devices (26, 42).
13. Escape route arrangement (100) according to one of claims 5 to 12,
    characterised in that
    at least two emergency switch devices (26, 42) are allocated to the at least one door (10), wherein the locking device (22, 24) can be shifted into a special mode by actuating an actuation element, in which mode it does not unlock the door (10) on the basis of a signal reporting the actuation of an emergency switch of a first emergency switch device (26), but only unlocks the door (10) on the basis of a signal reporting the actuation of an emergency switch of a second emergency switch device (42).

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