EP1004536A1 - Elevator control method in case of fire or similar hazards - Google Patents

Abstract

Procedure in which, when a fire or danger report is received by an elevator pertaining to a specific escape floor, then the elevator independently tests the escape floors neighboring the target floor for danger reports until a danger free escape floor is found and then guides the elevator cabin (4) towards it, before allowing any passengers to disembark. An Independent claim is made for equipment for use with control of the elevator cabin in conjunction with the above procedure.

Description

The invention is based on a method or a method Device for controlling elevators in the event of fire or similar dangers according to the preamble of claims 1 or 7. The European elevator standard EN81 writes in Appendix G. before the elevators exceed certain temperatures back to the ground floor to get users out allow. US 4,128,143 describes a monitoring control, the control of the elevators in the event of a fire takes over to ensure the safety of the passengers.

To stop at the predetermined escape floor prevent if a fire has just broken out in this one, according to JP 4-358680, the elevator car continues and checks the temperature on their journey on every floor. This However, the procedure has the disadvantage that the cabin is under Under certain circumstances drive deeper into a fire zone without to find a safe stop. Doing so can save valuable time for the rescue is lost.

The present invention is based on the object Passenger safety of an elevator car in the event of a fire increase and enable rapid evacuation.

In particular, even in the event of fire in the predetermined Escape floor, e.g. the ground floor, the passengers optimal Security.

According to claim 1, this is brought about by the fact that when present a fire or danger message on the target floor, especially a predetermined escape floor, first automatically the target stick and / or the cabin location neighboring floors are checked for danger messages until a safe escape floor is found and the affected elevator car then in this escape floor is controlled. The fire or danger message is given normally by fire alarm, but can also be done manually, e.g. triggered by continuously pressing the door lock button become. The device according to claim 7 realizes the Invention using a microprocessor.

The previous review of all eligible Escape floors enable a targeted journey without avoidable reversal of direction. Based on the situational examination of the The building control method is very flexible and not rely on rigid presets. An expensive one Fire protection adaptation to building-specific Peculiarities are not required, which means that Universal control method for various buildings is usable. Finding hazard free Escape floors take place automatically, quickly and reliably. In addition, the process is simple in existing Integrate elevator controls or connect to them.

Through the measures listed in the dependent claims are advantageous further developments and improvements in Claim 1 specified method possible. So during the Evacuation trip are continuously checked whether that Escape floor is actually still safe because of itself smoke that obstructs vision and is harmful to health Circumstances can spread very quickly in a building. In order to to ensure that evacuated passengers Find smoke-free escape routes.

In the case of rapidly spreading fires or dangerous situations such as Explosions, possibly involving all floors of one Building may be affected, the elevator will automatically move in the floor directed where the best escape options consist. This is achieved by the last incoming fire or danger message is ignored. On the floor from which the last message was received probably still the best chance to see the building undamaged to leave.

In the case of defective or nonexistent Fire detectors become safety for the passengers increases that e.g. if the Door lock button in the cabin panel for light barrier monitoring is deactivated and the elevator turns on automatically alternative escape floor starts. This prevents Stopping and opening the door of an elevator car in a burning or smoke-filled floor, the journey continues to a safe Floor due to blocking of the light barrier monitoring automatic doors is prevented. Instead of through Door lock button can also evacuate others Panic-related commands, e.g. by pressing the Alarm button, repeated or long press one floor call button or pressing several at the same time Buttons are triggered. With the detection of such Let panic input by a new panic sensor circuit existing systems without conversion or additional Equip installations with a fire control system.

The fire control system according to the invention has the further Advantage that subsequent conversions to a building that are affect the escape routes by simply changing their Configuration, e.g. Change of the predetermined Escape floor, can be taken into account.

Fig. 1

eine schematische Gesamtansicht einer Aufzugsanlage,

Fig. 2

die Ansicht einer erfindungsgemässen Brandfallsteuerung

Fig. 3

ein Flussdiagramm der Brandfallsteuerung

An embodiment of the invention is shown in the drawing and explained in more detail in the following description. Show it:

Fig. 1

a schematic overall view of an elevator system,

Fig. 2

the view of a fire control according to the invention

Fig. 3

a flow chart of fire control

Fig. 1 shows an example of an elevator system with two elevators 1, 2, each serving seven floors 3.1 to 3.7. Without the elevators can also be different or one operate different numbers of floors. With 3.2 is referred to here as the ground floor. The lifts each have one Cabin 4 on two sides with automatic doors 5, 6 are provided and by one each in a machine room motor drive 7.1 and 7.2 located in the shaft 8 be moved. Of course, the cabins can be in one simpler version also only on one side be provided with a door. Is located inside the cabins 4 a conventional panel, not shown, with keys for entering calls, and, depending on the version, also with buttons for opening the door and closing, for entering an alarm, etc. The lifts are controlled by an operational control 9, which calls from Accepts users and as driving and door control commands to the Lifts 1, 2 passes, controlled. On every floor are located in the rooms in front of the landing doors several fire alarms 10.11 to 10.75, the temperature and Monitor smoke development. The fire alarms also detect the Escape routes from the lifts to the outside or a safe one Location, like this on the ground floor with the fire alarm 10.26 and 10.27 is indicated. For smaller buildings, Occasionally, due to cost reasons, only one fire alarm per floor Installed. Near the operation control 9, for example it is even in the same control cabinet Control 11 according to the invention, which in the following as Fire control is called. The also as a fire alarm designated fire alarm messages are recorded in a Fire control center, not shown, or directly to the Fire control 11 reported. To avoid false alarms, hazard reports are only considered valid if optionally address at least two fire alarms per floor and / or the reports over a certain minimum period of for example, standing in line for ten seconds.

Fig. 2 shows the fire control 11, the inputs 12.1 to 12.8 for fire alarms, a microprocessor 13 and with the Operating control 9 has connected outputs 14. The outputs of the Operational control 9 performed on the fire control 11 to priority intervention in the control in a simple manner of drives 7.1, 7.2 and doors 5, 6. in the The commands of the operating control 9 become normal operation forwarded unchanged. Fire control also has 11 a socket 16 to which a monitor 17 is connected can to indicate the state of the fire control 11. In addition, the fire control unit 11 can have a memory 18 in which the incoming fire alarms as well as issued Driving errors are saved chronologically in order to later To be able to understand fire and elevator behavior. The memory 18 can also serve others for the Signals relevant to the operational control of the operational control 9 to save. An external computer can also be connected via the socket 16 connected, which takes over the stored data. Via this external computer, e.g. a laptop, can Fire control 11 also at any time by simple change their configuration or their parameters new conditions in the Buildings can be adapted immediately and optimally.

The fire alarms arriving at inputs 12.1 to 12.7 represent alarm messages on floors 1 to 7. There is also a general building fire alarm, which is on Entrance 12.8 Fire reports from other floors, e.g. also the machine room of the elevator or by others Hazard detectors can be activated. The fire operation will also when the building fire alarm arrives in isolation Input 12.8 activated.

In Fig. 3, the inventive method is based on a Flowchart illustrated. It is assumed that the affected elevator car is not already in the predetermined Escape floor stands; in this uncritical case the Simply put the elevator out of operation with the doors open, see steps 104 and 109. However, the elevator is on elsewhere in the building, the microprocessor checks Arrival of a valid fire alarm from fire control 11 in step 101, in step 102 whether the alarm is the as Escape floor affects the main stop. in the illustrated embodiment is the ground floor 3.2 as Main stop predetermined. This floor is from one If the fire is not affected, it becomes current at step 103 Escape floor set.

In the event that the main stop, so here Ground floor 3.2, itself is affected by a fire, is looking for the control according to the invention immediately automatically after a alternative escape floor by taking that from the current one Cabin location of the fastest accessible floors checked for fire reports one after the other in step 112. As soon as a risk-free floor is found, it will be set as a new escape floor. Should be in one unlikely case for all possible escape floors fire reports arrive at the same time (steps 111 and 113), so the floor is set as an escape floor, which is currently is the quickest to reach.

It is then checked at step 105 whether the cabin is open Doors in a stop stands. If so, the doors will be in Step 106 closed by means of a jostle circuit. The cabin is then moved in towards the escape floor Movement set and driving there without stopping. Meets but during this evacuation trip a fire alarm for that set escape floor (step 108), so immediately again the fastest attainable secure at this moment Floor sought and set as a new escape floor (Steps 114, 113, 107). With rapidly spreading Fires or rapidly spreading smoke in the building or the Escape routes affected, this process (loop with Repeat steps 108, 14, 113 and 107) several times. Eventually, all floors should be affected one after the other is the last time the fire alarm arrives no longer considered, which has the consequence that the elevator goes up to the floor, from which probably the best Escape options exist. So in the present Example with seven floors, one after the other Fire reports accepted for a maximum of six floors.

When cabin 4 arrives in the set escape floor the doors 5, 6 opened in a manner known per se and the The elevator is put out of operation, that is, the cabin 4 remains standing, the doors 5,6 remain open and there are none Answer more calls (step 109).

After all fire reports have been deleted and rectified if necessary leaves fire damage to the elevator system Fire control 11 the elevator system at step 110 automatically returns to normal operation. An intervention in the Fire control 11 is from the outside by service personnel unnecessary.

In some cases, especially in high-rise buildings, it can instead of from the current cabin location fastest accessible floor, that of the predetermined one Escape floor to select the closest floor.

Alternatively, this can also be the predetermined escape floor the next higher safe floor as an alternative Escape floor are preferred, in the absence of a the next higher safe floor, the predetermined escape floor next to the lower-lying safe Floor serves as an escape floor. The above variants can at the request of the building manager or at Be programmed appropriately.

As additional security for passengers e.g. in case of failure fire detectors are usually replaced by existing ones Door lock button in the cabin panel with a second function busy. If the elevator is on a smoke-filled floor stop, this solves more than three, for example Seconds of pressing the door closing button Pushing the door with overriding one possibly existing light barrier, sets a fire alarm for that current floor and starts at step 101 Evacuation trip. As already described, this can Panic entry if door lock button is not available other chaotic commands are triggered. The Fire control always reacts when panic is entered when a cabin on one floor is stationary and unlocked or open doors. All further steps proceed as described above.

Individual floors of a building can be used as escape floors be unsuitable because no or unreasonably long or there are confusing escape routes. This is often the case for basements too. Therefore, the proposed one Fire control if necessary, the possibility of individual Exclude floors as alternative escape floors. In the event of a fire, you will not be approached at all.

In the exemplary embodiment described, the elevators have two Side doors 5, 6 on that in different fire sections can flow. To save the escape routes To achieve the optimal fire zone, the Floors are blocked in sections. So is only for the right part of the ground floor 3.2 in Fig. 1 a fire alarm For example, the fire alarm 10.21 or 10.22, drives the elevator still goes to ground floor 3.2, but opens only door 6 to the left. Are on one floor, e.g. the basement 3.1 only on one side escape routes available because e.g. only there a leading outdoors Stairwell is nearby, so open in case of fire only the doors leading to the escape routes, e.g. doors 6 to the left.

For passenger safety, it is important that in the In the event of fire, the lifts just used in a hazard-free Escape floor can be controlled. This is preferably done even with elevators not in use. Alternatively, you can such "empty" lifts but also on the spot Operation.

The fire control described above is used for evacuation people already in a cabin and prevented the further use of the lifts by passengers in the event of a fire. However, this control can be supplemented by a known fire brigade control for rescuing in burning People in buildings and possibly one Emergency power facility.

Claims (10)

Procedure for controlling elevators when Fire or similar hazards that exist in the presence of a Fire or danger message for the access area of a Elevator (1, 2) prevents the acceptance of travel commands and at least the elevator cars (4) used by passengers into a predetermined one, preferably as an escape floor safe floor controls, characterized, that if there is a fire or danger message in the predetermined escape floor, first automatically the Target floor and / or the cabin location adjacent Floors (3.1 to 3.7) checked for danger reports until a safe escape floor is found and the affected elevator car (4) then into this Escape floor is controlled. Method for controlling elevators according to claim 1, characterized in that upon arrival of further Danger messages continuously during the evacuation trip a new escape floor is determined. Method for controlling elevators according to claim 1 or 2, characterized in that when n Floors of a building with the successive arrival of Hazard reports for a maximum of (n-1) floors Hazard reports are accepted. Method for controlling elevators according to one of the previous claims, characterized in that Floors without an escape option as an alternative Escape floors are excluded. Process for controlling elevators according to the generic term of claim 1, characterized in that the fire or Hazard notification through manual panic input, e.g. triggered by continuously pressing the door lock button and the affected elevator car into a hazard-free Escape floor is controlled. Method for controlling elevators according to one of the previous claims, characterized in that the Control (11) itself when all hazard messages are deleted automatically decouples and without additional External intervention normal operation of the Operating control (9) of the elevator. Device for controlling elevators when Fire or similar hazards that exist in the presence of a Fire or danger message for the access area of a Elevator (1, 2) prevents the acceptance of travel commands and at least the elevator cars (4) used by passengers a move command to a preferably as an escape floor thereby imprinting a predetermined, risk-free floor characterized that the device as fire control (11) and a microprocessor (13) that accepts fire or danger reports and at Occurrence of such in the predetermined escape floor first automatically the the predetermined escape floor and / or floors adjacent to the cabin location Hazard messages checked until a hazard free Escape floor is found and then the operational control (9) issued a move order to this escape floor. Device for controlling elevators according to claim 7, characterized in that they are one of the Performs method steps according to claims 2 to 6. Device for controlling elevators according to claim 7 or 8, characterized in that they have inputs (12.1 to 12.8) for the feed-in of hazard reports and a Output (16) has the display of received Hazard messages on a monitor (18) causes. Device for controlling elevators according to claim 7, characterized in that the microprocessor (13) a Has memory (18) in which the input of Hazard messages and preferably those from the control system (11) issued travel commands are saved.

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