JP4937544B2 - Elevator control system - Google Patents

Description

  The present invention relates to an elevator control system that performs evacuation operation control for an elevator when a fire occurs in a building.

  In a conventional elevator control system, when a fire occurs in a building, the elevator operation is stopped after the car is moved to the evacuation floor. However, in recent buildings, fire prevention technology has been improved, so it is unlikely to be affected by fire on floors other than the one where the fire occurred or the floor above it, and it is possible to continue operating the elevator. It is possible. For this reason, an evacuation elevator that performs a rescue operation between a fire occurrence floor and an evacuation floor at the time of a fire has been proposed (see, for example, Patent Document 1).

JP-A-6-16357

  However, in the conventional evacuation elevator as described above, since the fire floor is a rescue target, if the operation of the elevator becomes impossible due to the influence of heat, smoke, etc., it must be switched to evacuation by stairs, Conditions for using elevators for evacuation were limited.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to obtain an elevator control system that can more effectively carry out evacuation using an elevator when a fire occurs.

  The elevator control system according to the present invention, after planning an evacuation plan using an elevator based on information identifying the fire occurrence floor, and outputting a command to close the fire door of the elevator hall selected based on the evacuation plan, An elevator management device that outputs an evacuation operation command based on the evacuation plan to the elevator control device is provided.

  The elevator control system according to the present invention creates an elevator evacuation plan based on information for identifying the fire occurrence floor, and performs evacuation operation after closing the fire door selected based on the evacuation plan. Evacuation using an elevator can be carried out more effectively after separating the effects of smoke.

The best mode for carrying out the present invention will be described below with reference to the drawings.
Embodiment 1 FIG.
FIG. 1 is an explanatory diagram showing a building in which an elevator control system according to Embodiment 1 of the present invention is installed. This building has a basement floor, 1 to 15 floors, and a rooftop floor. Further, in this building, a low-rise zone elevator 1, a middle-rise zone elevator 2, and a high-rise zone elevator 3 are installed.

  The low-rise zone elevator 1 has a low-rise elevator car 4 and a low-rise elevator control device 5. The low-rise elevator car 4 is stopped on each floor of the first to sixth floors. The low-rise elevator control device 5 is installed in the low-rise elevator machine room 6 on the seventh floor.

  The middle zone elevator 2 has a middle layer elevator car 7 and a middle layer elevator control device 8. The middle-layer elevator car 7 is stopped on the first floor and the 6th to 10th floors, and passes through the 2nd to 5th floors. The middle level elevator control device 8 is installed in a middle level elevator machine room 9 on the 11th floor.

  The high-rise zone elevator 3 has a high-rise elevator car 10 and a high-rise elevator control device 11. The high-rise elevator car 10 is stopped on each of the first floor and the 10th to 15th floors, and passes through the 2nd to 9th floors. The high-rise elevator control device 11 is installed in a high-rise elevator machine room 12 on the roof floor.

  Fire sensors 13 are installed in the rooms, passages, elevator hall (getting on / off lobby) 14, machine rooms 6, 9, 12 and the like on each floor. For example, a smoke sensor or a temperature sensor is used as the fire sensor 13.

  A disaster prevention management device 15 and an elevator management device 16 are installed on the basement floor. The fire detection signal from the fire sensor 13 is input to the disaster prevention management device 15. The elevator management device 16 controls the elevator control devices 5, 8, and 11 based on information from the disaster prevention management device 15.

  In addition, FIG. 1 has shown the case where a fire broke out on the 12th floor as an example. In this case, the 6th floor and the 10th floor are rescue floors (rescue objects by an elevator), and the evacuation floor (evacuation destination) is the first floor ( It is the entrance floor). In addition, the building is provided with a plurality of emergency stairs (not shown).

  FIG. 2 is an explanatory diagram showing a plan layout of the 12th floor of the building shown in FIG. 1. In this example, four high-rise zone elevators 3 are installed. The elevator hall 14 on each floor is provided with a plurality of fire doors 17 that shield the elevator hall 14 from the surrounding area for fire prevention. The disaster prevention management device 15 identifies the fire occurrence floor based on the signal from the sensor 13 and automatically closes the fire door 17 of the elevator hall 14 on the fire occurrence floor and the upper floor thereof.

  The elevator hall 14 on each floor is provided with a fire door closing device 18 for closing the fire door 17. The fire door 17 is provided with a closing confirmation switch 19 for detecting that the fire door 17 is closed.

  In addition, the elevator hall 14 on each floor is provided with a broadcasting device 20 and a display device 21 as notification devices. As the broadcasting device 20, for example, an existing speaker is used. As the display device 21, for example, a liquid crystal display capable of displaying an arbitrary message or image, or a display lamp to which a predetermined message is attached and turned on / off is used.

  FIG. 3 is a block diagram showing an elevator control system installed in the building of FIG. The fire sensor 13, the fire door closing device 18, the closing confirmation switch 19, the broadcasting device 20, the display device 21, and the elevator management device 16 are connected to the disaster prevention management device 15. The elevator management device 16 is connected to a low-rise elevator control device 5, a middle-rise elevator control device 8, and a high-rise elevator control device 11.

  The elevator management device 16 is constituted by a microcomputer. The elevator management device 16 includes a communication unit 22, an evacuation plan planning unit 23, a closing command unit 24, a closing confirmation unit 25, a broadcast display unit 26, and an evacuation operation command unit 27. The function of each means 22-27 is implement | achieved by the microcomputer which comprises the elevator management apparatus 16. FIG. That is, the microcomputer stores a program for realizing the functions of the means 22 to 27.

  The communication unit 22 is a unit for performing communication with the outside. The evacuation plan planning unit 23 devises an evacuation plan using the elevators 1 to 3 based on information specifying the fire occurrence floor from the disaster prevention management device 15. The closing command unit 24 generates a closing command for the fire door closing device 18 corresponding to the fire door 17 to be closed based on the evacuation plan prepared by the evacuation plan planning unit 23. The closing command is output to the fire door closing device 18 via the disaster prevention management device 15. The closing confirmation means 25 confirms whether or not the fire door 17 corresponding to the closing command is closed based on the signal from the closing confirmation switch 19. A signal from the closure confirmation switch 19 is input to the elevator management device 16 via the disaster prevention management device 15.

  The broadcast display means 26 generates an announcement command and a message display command for the broadcast device 20 and the display device 21 of the elevator hall 14 where the fire door 17 is closed. These announcement command and message display command are for instructing the evacuation from the elevator hall 14, and are output from the elevator management device 16 to the broadcasting device 20 and the display device 21 via the disaster prevention management device 15.

  The evacuation operation command means 27 confirms that the selected fire door 17 is closed, and then instructs the elevator control devices 5, 8, 11 to operate according to the evacuation plan planned by the evacuation plan planning means 23. (Including stop command).

  The elevator control devices 5, 8, 11 and the disaster prevention management device 15 are also configured by independent computers.

  Next, the operation will be described. For example, as shown in FIGS. 1 and 2, when a fire occurs in a room on the 12th floor and a fire is detected by the fire sensor 13, confirmed information on the occurrence of the fire is input from the disaster prevention management device 15 to the elevator management device 16. The Thereby, the elevator management apparatus 16 implements a well-known fire control operation, and returns the cars 4, 7, and 10 of all the elevators 1-3 to the evacuation floor.

  Thereafter, an evacuation plan using the elevators 1 to 3 is drafted by the evacuation plan drafting means 23. In elevator evacuation, the residents in each zone shall evacuate the stairs equally. Specifically, if a person in the high-rise zone can use the elevator, the middle-tier zone transit floor is used as the rescue floor, and then the elevator evacuates after performing stair evacuation to the rescue floor. In addition, if the people in the middle zone can use the elevator, they will evacuate by using the elevator after escaping the stairs to the rescue floor using the low-rise zone transit floor as the rescue floor. The people in the lower zone evacuate the stairs to the evacuation floor.

  FIG. 4 is a flowchart showing the operation of the evacuation plan planning means 23 of FIG. The evacuation plan planning means 23 monitors whether the fire sensor 13 has been operated (step S1). When the operation of the fire sensor 13 is confirmed, it is determined whether or not the operation floor is a high-rise zone (step S2).

  If the operation floor of the fire sensor 13 is a high-rise zone, the elevators that can be evacuated are judged to be middle- and low-rise zone elevators 2 and 1 (step S3), and the evacuation operation of the high-rise zone elevator 3 is prohibited (step S3). S4). Then, for those in the high-rise zone, a plan for evacuating by the middle-tier zone elevator 2 with the mid-zone transit floor as the rescue floor is determined (step S5). In addition, for the people in the middle zone, a plan for evacuating with the lower zone elevator 1 with the lower zone transit floor as the rescue floor is determined (step S6).

  If the operation floor of the fire sensor 13 is not a high-rise zone, it is determined whether or not the operation floor is a middle-rise zone (step S7). If the operation floor of the fire sensor 13 is the middle zone, it is determined that the elevators that can be evacuated are the high and low zone elevators 3 and 1 (step S8), and the evacuation operation of the middle zone elevator 2 is prohibited (step S8). S9). Then, for the people in the high-rise zone, a plan for evacuating with the high-rise zone elevator 3 with the mid-zone transit floor as the rescue floor is determined (step S10). Further, for the people in the middle zone, a plan for evacuating with the lower zone elevator 1 with the lower zone transit floor as the rescue floor is determined (step S11).

  If the operation floor of the fire sensor 13 is neither the high-rise zone nor the middle-rise zone, it is judged that the operation floor is the low-rise zone, and the elevators that can be evacuated are judged to be the high-rise and middle-rise zone elevators 3 and 2 (step S12). ) The evacuation operation of the low-rise zone elevator 1 is prohibited (step S13). Then, a plan for evacuating the high-rise zone elevator 3 with the middle-rise zone transit floor as the rescue floor is determined for those in the high-rise zone (step S14). Further, for the people in the middle zone, a plan for evacuating by the middle zone elevator 2 with the low zone transit floor as the rescue floor is determined (step S15).

  When the planning of the evacuation plan is completed, the fire doors 17 of the elevator hall 14 on the floor where the fire has occurred and the upper floor are closed in order to prevent smoke from entering the hoistway from the floor where the fire occurred. It should be noted that it is possible to appropriately select which floor of the fire door 17 other than the fire-occurring floor is to be closed. For example, all the upper floors of the fire occurrence floor in the same zone as the fire occurrence floor may be used.

  When closing the fire door 17, a person in the elevator hall 14 to be closed is notified in advance that the fire door 17 will be closed, and urged to evacuate from the elevator hall 14. FIG. 5 is a flowchart showing the operation of the broadcast display means 26 of FIG. The broadcast display means 26 monitors whether or not the evacuation plan has been completed (step S21). If the evacuation plan has been completed, it is confirmed whether the evacuation operation of the high-rise zone elevator 3 is prohibited (step S22).

  When the evacuation operation of the high-rise zone elevator 3 is prohibited, a broadcast display command is output to the broadcast device 20 and the display device 21 provided on the target floor of the high-rise zone (the floor where the fire door 17 is closed). As a result, an announcement such as “Please get out of the entrance / exit lobby because the fire door is closed” is broadcast from the broadcasting device 20, and a message such as “Closed entrance / exit lobby fire door” is displayed on the display device 21. The contents of broadcasting and display can be set as appropriate.

  If the evacuation operation of the high zone elevator 3 is not prohibited, it is confirmed whether the evacuation operation of the middle zone elevator 2 is prohibited (step S24). When the evacuation operation of the middle zone elevator 2 is prohibited, a broadcast display command is output to the broadcast device 20 and the display device 21 provided on the target floor of the middle zone (step S25).

  Furthermore, if the evacuation operation of the high-rise zone elevator 3 and the middle-rise zone elevator 2 is not prohibited, it is determined that the evacuation operation of the low-rise zone elevator 1 is prohibited, and the broadcasting device 20 provided on the target floor of the low-rise zone and A broadcast display command is output to the display device 21 (step S26).

  When the broadcast display command is output, it waits for a predetermined time to elapse (step S27) and permits the fire door 17 to be closed. The time from when the broadcast display command is output until the closing of the fire door 17 is permitted is set to a time sufficient for the user to evacuate from the elevator hall 14.

  Next, FIG. 6 is a flowchart showing the operation of the closing command means 24 of FIG. The closing command means 24 monitors whether or not the evacuation plan has been completed (step S31). If the evacuation plan is completed, it is confirmed whether the evacuation operation of the high-rise zone elevator 3 is prohibited (step S32). When the evacuation operation of the high-rise zone elevator 3 is prohibited, the broadcast display means 26 waits for the fire door 17 to be closed (step S33), and the command to close the fire door 17 that is the target of the high-rise zone Is output (step S34).

  If the evacuation operation of the high-rise zone elevator 3 is not prohibited, it is confirmed whether the evacuation operation of the middle-zone elevator 2 is prohibited (step S35). If evacuation operation of the middle zone elevator 2 is prohibited, the broadcast display means 26 waits for the fire door 17 to be closed (step S36), and then commands to close the fire door 17 that is the target of the middle zone Is output (step S37).

  Further, if the evacuation operation of the high-rise zone elevator 3 and the middle-rise zone elevator 2 is not prohibited, it is determined that the evacuation operation of the low-rise zone elevator 1 is prohibited, and the broadcast display means 26 permits the fire door 17 to be closed. (Step S38), and outputs a command to close the fire door 17 that is the target of the low-rise zone (Step S39).

  Next, FIG. 7 is a flowchart showing the operation of the closing confirmation means 25 of FIG. The closing confirmation means 25 monitors whether or not a fire door closing command has been output (step S41). If the fire door closing command has been output, it is determined whether or not the target of the closing command is the fire door 17 in the high-rise zone (step S42). If the target of the closing command is the fire door 17 in the high-rise zone, it is confirmed whether or not the corresponding closing confirmation switch 19 has been operated (step S43).

  And if all the corresponding closing confirmation switches 19 are operating, the evacuation operation of the middle and lower zone elevators 2 and 1 is permitted (step S44). If even one of the corresponding closing confirmation switches 19 is not operating, it is determined that the fire door 17 is not properly closed for some reason, and the middle layer until the operation of the closing confirmation switch 19 is confirmed. And the evacuation operation of the low-rise zone elevators 2 and 1 is prohibited (step S45).

  If the target of the closing command is not the fire door 17 in the high-rise zone, it is determined whether or not the target of the closing command is the fire door 17 in the middle zone (step S46). Then, depending on whether the corresponding closing confirmation switch 19 is operated, the evacuation operation of the upper and lower zone elevators 3, 1 is permitted or prohibited (steps S47 to S49).

  If the target of the closure command is not the fire door 17 in the high-rise zone and the middle-rise zone, it is determined that the subject of the closure command is the fire door 17 in the low-rise zone, and depending on whether the corresponding closure confirmation switch 19 is operated, The evacuation operation of the middle zone elevators 3 and 2 is permitted or prohibited (steps S50 to S52).

  FIG. 8 is a flowchart showing the operation of the evacuation operation command means 27 of FIG. The evacuation operation command means 27 determines whether the evacuation plan planning by the evacuation plan planning means 23 is completed (step S61), whether the broadcast display means 26 is permitted to close the fire door 17 (step S62), or the closure confirmation means 25 After confirming in turn whether the closing command for the fire door 17 has been output (step S63) or whether the evacuation operation is permitted by the closing confirmation means 25 (step S64), the evacuation operation commands for the elevators 1 to 3 based on the evacuation plan Is output to the elevator control devices 5, 8, and 11 (step S65).

  In such an elevator control system, an elevator evacuation plan is drawn up based on information specifying the fire occurrence floor, and the fire door 17 selected based on the evacuation plan is closed before the evacuation operation is performed. Evacuation using an elevator can be carried out more effectively after separating the effects of smoke and smoke. That is, since the evacuation operation is performed after the fire door 17 of the elevator hall 14 on the target floor including the fire occurrence floor is closed, the evacuation operation can be efficiently performed without being affected by the fire.

Moreover, since the elevator management apparatus 16 outputs the instruction | command of evacuation operation after receiving the signal which confirms closure of the fire door 17, it can prevent more reliably the influence of the heat | fever and smoke by a fire.
Furthermore, since the elevator management device 16 outputs a command to close the fire door 17 after a predetermined time since the broadcast device 20 or the display device 21 gives a notice that the fire door 17 is closed, the elevator hall 14 to be closed. The user who is in can be evacuated more reliably and promptly.

Here, the fire door is a device that blocks flames and smoke due to fire, and includes, for example, a fire shutter.
In the above example, transmission / reception of signals between the elevator management device 16 and the equipment installed in the building is performed via the disaster prevention management device 15, but may be performed directly without using the disaster prevention management device 15. Good.
Furthermore, in the above example, the function of the elevator management device 16 is realized by one computer, but the function may be distributed to a plurality of computers and executed.
Furthermore, the content of the evacuation operation plan is not limited to the above example, and various changes can be made according to the structure of the building, the arrangement of elevators, and the like. For example, the evacuation floor is not limited to the entrance floor, and the rescue floor is not limited to the transfer floor.
Further, in the above evacuation operation plan, the elevator of the zone including the fire floor is stopped, but it is also possible to easily operate the elevator of the zone including the fire floor from the fire information.

It is explanatory drawing which shows the building in which the elevator control system by Embodiment 1 of this invention was installed. It is explanatory drawing which shows the planar layout of the 12th floor of the building of FIG. It is a block diagram which shows the elevator control system installed in the building of FIG. It is a flowchart which shows operation | movement of the evacuation plan preparation means of FIG. It is a flowchart which shows operation | movement of the broadcast display means of FIG. It is a flowchart which shows operation | movement of the closure instruction | indication means of FIG. It is a flowchart which shows operation | movement of the closure confirmation means of FIG. It is a flowchart which shows operation | movement of the evacuation driving | operation instruction | command means of FIG.

Explanation of symbols

  5 Low-rise elevator control device, 8 Middle-rise elevator control device, 11 High-rise elevator control device, 16 Elevator management device, 19 Closure confirmation switch, 20 Broadcast device (notification device), 21 Display device (notification device)

Claims (6)

After preparing an evacuation plan using an elevator based on the information identifying the fire occurrence floor, outputting a command to close the fire door at the elevator hall selected based on the evacuation plan, An elevator control system comprising an elevator management device that outputs a command to the elevator control device.   The elevator control system according to claim 1, wherein the elevator management device outputs a command for evacuation operation after receiving a signal for confirming that the fire door is closed.   3. The elevator control system according to claim 2, wherein the elevator management device confirms the closing of the fire door based on a signal from a closing confirmation switch that operates when the fire door is closed.   The elevator management device outputs a command to close the fire door after a predetermined time after giving a notice that the fire door is closed by a notification device provided at the elevator hall. The elevator control system in any one. The elevator control system according to any one of claims 1 to 4, wherein the elevator management device outputs a command to close the fire door to the disaster prevention management device. The said elevator management apparatus outputs the instruction | command which closes the fire door of the elevator landing of the floor where a fire occurs, and the floor on the 1st floor based on the said evacuation plan. The elevator control system described.

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