JP2005162460A - Elevator control device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To secure safety of a user by reducing human damage when a fire occurs. <P>SOLUTION: In this elevator control device, an elevator is controlled to operate according to a fire detection signal from fire detectors 2, 4 set in a building 1 and a hoist way 3. The control device includes: fire signal detection means 11, 12 detecting the occurrence of a fire according to a fire detection signal; determination means 14, 15 for determining the current operating state of the elevator on detection the occurrence of a fire; an operation instructing means 16 for giving a instruction for operating the elevator to the nearest floor in the operating direction when it is determined by the determination means that the elevator is now in operation; and a door control means 17 for opening the door of the elevator during a predetermined time and closing the door when it is determined by the determination means that the elevator is in the stop state. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an elevator control device that ensures the safety of an elevator user during a building fire.

  According to Article 112, Paragraphs 9 and 14, Item 2 of the Building Standards Act Construction Order for Buildings, “Elevator hoistway shall be fireproofed with other parts of the building and fire prevention equipment” and “Elevator boarding / exiting lobby shall be In order not to be regarded as a part of the road, it must be separated from the entrance / exit lobby hoistway. "

  Therefore, in the elevator system, a fire shutter or a door with smoke / flame-shielding performance linked to the smoke detector installed on the floor is installed immediately before the elevator landing door based on the Building Standards Act construction order mentioned above. To be done.

  By the way, when a building fire occurs, a fire control operation system is used in which the car is forced to go straight in advance based on the operation control command of the elevator main control device, and the passenger is taken down and stopped.

  However, in the event of a fire in a building, it is not only necessary to go straight to the evacuation floor, take the passengers down and stop, but it is also true that there is a possibility of causing other troubles. For example, during a fire control operation, the car may return to the refuge floor and a power failure may occur while the door is open or when the door is opened or closed. If a power failure occurs, the elevator control power is generally lost and the car door remains open. At this time, measures have been taken to prevent smoke and disaster by using the fire shutter etc. mentioned above, but the car may become a chimney in the hoistway if the car door is left open. It becomes dangerous.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide an elevator control device that minimizes human damage when a fire occurs in a building or a hoistway.

  (1) In order to solve the above problem, an elevator control device according to the present invention is an elevator control device that controls the operation of an elevator based on a fire detection signal from a fire detector installed in a building and a hoistway. A fire signal detecting means for detecting the occurrence of a fire based on the fire detection signal, a judging means for judging whether or not the elevator is currently in operation when the fire signal is detected by the fire signal detecting means, When it is determined by the determination means that the elevator is currently in operation, the operation instruction means for instructing to drive the elevator to the nearest floor in the driving direction, and the elevator is stopped by the determination means If it is determined, the door control means for opening the door of the elevator for a predetermined time and closing the door is provided.

  With this configuration, when a fire occurs on the elevator side in the building and the hoistway, the present operation state of the elevator is judged. If an elevator is driven to the floor and the passengers are taken down, if it is currently stopped, the door will be opened for a predetermined time on the stop floor, and the passengers will be taken down and stopped, for example. It is possible to ensure the safety of elevator users.

(2) Moreover, the elevator control apparatus which concerns on this invention newly makes an elevator operate | move predetermined | prescribed with a fire occurrence detection, when the elevator is newly driving | running | working or stopping at the component described in said (1) newly By providing means for issuing an instruction to output a message for evacuation, the user can be safely evacuated without being confused.

  Further, as the operation instruction means, when the elevator is the floor where the nearest floor in the current driving direction is away from the evacuation floor, the driving is switched to the opposite direction to the current driving direction and the elevator is driven to the nearest floor near the evacuation floor side. It is possible to evacuate the user relatively smoothly by issuing an instruction to do so.

  The present invention, when a fire has occurred in the building and on the elevator side, drives to the nearest floor in the driving direction if it is currently in operation, drops the passenger, and if it is currently stopped, opens the door for a predetermined time on the stop floor. Opening and lowering passengers can reduce human damage and ensure the safety of elevator users.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a block diagram showing an embodiment of an elevator control apparatus according to the present invention.

  The elevator control device is installed at least at one location on the building 1 side, and is installed on the building side fire detector 2 including a temperature sensor and a smoke detector for detecting a fire on the building side, and on the hoistway 3 side. An elevator side fire detector 4 including a temperature sensor for detecting a fire generated from the side, a smoke detector, etc., and outputs of the building side fire detector 2 and the elevator side fire detector 4 are sent to the elevator control panel 10. Sent. The outputs of the building-side fire detector 2 and the elevator-side fire detector 4 are generally sent to the elevator control panel 10 from an upper group management control device or the like.

  The elevator control panel 10 has a fire that is turned on by a fire detection signal from the building fire signal contact 11 and a fire detection signal from the elevator fire detector 4 as a fire signal detection means that is turned on by a fire detection signal from the building fire detector 2. An elevator fire signal contact 12 as a signal detection means is connected in parallel, one end of this parallel contact circuit is connected to the power supply line 13a, the other end is branched into two, and each of these branch lines is in an elevator operation. An operation confirmation contact 14 for confirming whether or not and a stop confirmation contact 15 for confirming whether or not the elevator is stopped are connected, and the operation confirmation contact 14 is connected to the nearest floor during operation for stopping at the nearest floor. The stop relay circuit 16 is connected in series, and the stop confirmation contact 15 is connected in series with a door opening relay circuit 17 for opening the door for a certain period of time. The other end of the over circuits 16 and 17 is connected to a power supply line 13b.

  Next, the operation of the control device as described above will be described with reference to FIG.

  In the elevator control panel 10, a fire detection process is executed during the traveling operation of the elevator (S1). In this fire detection process, a fire detection signal is output from either the building-side fire detector 2 or the elevator-side fire detector 4, or the building management control device on the building 1 side or the hoistway 3 side. A signal indicating whether a fire has occurred is received from the elevator side, and the fire is detected by turning on the building-side fire signal contact 11 or the elevator-side fire signal contact 12.

  Here, when the occurrence of a fire is detected, it is determined whether or not the elevator car is currently in operation, and if the contact 14 is in an on state, it is determined that the vehicle is in operation, while the contact 15 is in an on state. If it is, it is determined that the elevator is stopped (S2).

  Therefore, when the elevator is currently in operation, for example, the nearest floor stop relay circuit 16 is operated under the current elevator operation direction, and the door is opened at the nearest floor in the operation direction. The user is lowered to the floor (S3). When the elevator is not in operation but stopped, operating the door opening relay circuit 17 (S4) opens the door for a certain period of time and lowers passengers at the stop floor, thereby reducing human damage. , To ensure the safety of users.

  Note that only the nearest floor stop relay circuit 16 and the door opening relay circuit 17 are connected to the operation confirmation contact 14 and the stop confirmation contact 15 described above respectively. For example, a fire occurs in parallel with the nearest floor stop relay circuit 16. Is connected to a relay circuit for operating a message generation circuit for outputting a message to stop operation at the nearest floor, and the door opening relay circuit 17 is also connected to the door opening relay circuit 17 in parallel to close the door after the door is released for a certain time due to the occurrence of a fire. The relay circuit etc. which operate the message generation circuit for outputting may be connected.

  In the above-described embodiment, the relay circuit is used. However, digital processing using a CPU is also easy.

  That is, as shown in FIG. 2, the CPU has a function of detecting the occurrence of a fire corresponding to step S1, a function of determining whether the current elevator corresponding to step S2 is operating or stopped, and the current elevator is operating. For example, in principle, an operation stop control function for stopping and driving to the nearest floor in the current driving direction corresponding to step S3, and closing the door after opening the door for a certain period of time if the current elevator is stopped Although it has a door opening control function, the evacuation floor is generally set in advance in other buildings, so the elevator is in operation when a fire breaks out, but it is easy to determine whether the driving direction is away from the evacuation floor. Therefore, a function may be added in which driving is switched to the opposite direction to the current driving direction, and the driving is stopped at the nearest floor close to the evacuation floor side.

  In addition, the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention.

  In addition, the embodiments can be implemented in combination as much as possible, and in that case, the effect of the combination can be obtained. Further, each of the above embodiments includes various higher-level and lower-level inventions, and various inventions can be extracted by appropriately combining a plurality of disclosed constituent elements. For example, when an invention is extracted because some constituent elements can be omitted from all the constituent elements described in the means for solving the problem, the omitted part is used when the extracted invention is implemented. Is appropriately supplemented by well-known conventional techniques.

The block diagram which shows one Embodiment of the elevator control apparatus which concerns on this invention. The figure explaining operation | movement of the elevator control apparatus shown in FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Building, 2 ... Building side fire detector, 3 ... Hoistway, 4 ... Elevator side fire detector, 10 ... Elevator control panel, 11 ... Building side fire signal contact, 12 ... Elevator side fire signal contact, 14 ... Operation Confirmation contact, 15 ... Stop confirmation contact, 16 ... Closest stop relay circuit during operation, 17 ... Door open relay circuit.

Claims (3)

In an elevator control device that controls the operation of an elevator based on a fire detection signal from a fire detector installed in a building and a hoistway,
Fire signal detection means for detecting the occurrence of a fire based on the fire detection signal;
When a fire occurrence is detected by the fire signal detecting means, a judging means for judging the operating state of the elevator,
When it is determined by the determining means that the elevator is in operation, driving instruction means for issuing an instruction to drive the elevator to the nearest floor in the driving direction;
An elevator control apparatus comprising: door control means for opening the door of the elevator for a predetermined time and closing the door when the judgment means judges that the elevator is stopped. In the elevator control device according to claim 1,
An elevator control apparatus comprising: means for issuing an instruction to output a message for causing the elevator to perform a predetermined operation in response to detection of a fire occurrence when the elevator is operating or stopped by the determining means. In the elevator control device according to claim 1,
When the nearest floor in the current driving direction is a floor away from the evacuation floor, the driving instruction means switches the driving in the direction opposite to the current driving direction and drives the elevator to the nearest floor near the evacuation floor side. An elevator control device characterized by issuing an instruction.

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