JP2016088635A - Elevator control device, and elevator control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To consider an affection of smoke during fire disease occurrence, and execute a proper evacuation operation service.SOLUTION: An elevator control device comprises: a smoke detection part 52 for receiving a smoke sensing signal for notifying of detection of smoke in a hoistway 1, from a smoke sensor 7 disposed in a car 8, for creating smoke detection information; a car position detection part 53 for detecting a car position in the hoistway 1, and creating car position information; and a fire disease time operation control part 50, for executing an inspection operation for traveling the car 8 over respective floors in the hoistway 1 during fire disease occurrence, then acquiring the car position when the smoke detection information is received from the smoke detection part 52, based on the car position information received from the car position detection part 53, thereby specifying a smoke detection area in the hoistway 1, then, defining a range of the hoistway which is lower side relative to a lowermost end, as a car stop floor area, out of the smoke detection area, for executing an evacuation operation.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an elevator control device and an elevator control method for determining a floor on which a car can be stopped in control of a fire in a building.

  In the event of a fire, an elevator is used to move between the floor where the refugee is located and the evacuation floor where the exit for evacuating the building is located. Control devices are conventionally known. Here, examples of the evacuation floor include a floor with an entrance and an emergency exit installation floor.

  However, with the exception of emergency elevators with fire prevention and fire resistance measures, ordinary elevators for ordinary passengers are generally suspended from operation so that they cannot be used as a means of moving refugees in the event of a fire. It is. This is to prevent the occurrence of a confinement failure of passengers in the car due to the flooding of elevator equipment or the occurrence of secondary disasters caused by passengers getting off to the fire floor. From this point of view, the normal elevator cannot be used for evacuation in the event of a fire, except for an emergency elevator installed with a specification different from that of the normal elevator.

  Therefore, in order to use a normal elevator as a means of moving refugees, it is a floor where an elevator equipped with an infrared camera is dispatched to the floor registered for call and the vehicle can be dispatched based on an image taken by the infrared camera. Conventionally, an elevator control device that determines whether or not is known (see, for example, Patent Document 1).

  The control device disclosed in Patent Document 1 determines that the floor where the high temperature area does not appear in the temperature distribution image in the monitoring area facing the car entry / exit from the inside of the car taken by the infrared camera is a floor that can be dispatched. The use of a normal elevator is permitted as a means of moving refugees on the registered floor.

JP 2011-153019 A

However, the prior art has the following problems.
The hoistway has a structure similar to a chimney, and there is no temperature abnormality in the floor above the floor where the fire broke out, but it is assumed that the hoistway is full of smoke. The Even when the hoistway is full of smoke, the elevator control device disclosed in Patent Document 1 dispatches a car if no temperature abnormality is detected. As a result, smoke flows into the car, and evacuees and evacuation guides inhale the smoke, which may cause carbon monoxide poisoning failure.

  The present invention has been made to solve the above-described problems, and an elevator control device and an elevator control method capable of providing an appropriate evacuation operation service in consideration of the influence of smoke when a fire occurs. The purpose is to obtain.

  The elevator control apparatus according to the present invention receives a smoke detection signal notifying that smoke has been detected in the hoistway from a smoke detector provided in a car that is elevated in the hoistway via the main rope. , Smoke detection unit that generates smoke detection information, car position detection unit that detects car position in the hoistway, and car position information generation unit, and in the event of a fire, the car runs across each floor in the hoistway The smoke detection area in the hoistway is identified by acquiring the car position when the smoke detection information is received from the smoke detection unit from the car position information received from the car position detection unit. And the operation control part at the time of a fire which performs evacuation operation, limiting the range of the hoistway located below the position of the lowest end among smoke detection areas as a car stop floor area is provided.

  According to the elevator control method of the present invention, a smoke detection signal notifying that smoke has been detected in the hoistway is received from a smoke detector provided in a car that is elevated in the hoistway through the main rope. A smoke detection unit that generates smoke detection information, a car position detection unit that detects car position in the hoistway and generates car position information, and a fire operation control unit that performs evacuation operation in the event of a fire The elevator control method executed in the elevator control device, wherein the fire operation control unit executes a fire control operation for evacuating passengers in the car to the nearest evacuation floor in the event of a fire. After executing the control operation execution step, an investigation operation is performed in which the car travels across the floors in the hoistway, and the car position when the smoke detection information is received from the smoke detection unit is detected. The smoke detection area in the hoistway is identified by acquiring the car position information received from the section, and the range of the hoistway located below the lowest position of the smoke detection area is defined as the car stop floor area. And an evacuation operation execution step for executing an evacuation operation between floors included in the car stop floor area.

  According to this invention, the smoke detection area in the hoistway is specified by conducting an investigation operation across each floor in the hoistway, and the car lower floor area is defined below the lowest end position of the smoke detection area. Limit and implement evacuation service. As a result, it is possible to obtain an elevator control device and an elevator control method capable of performing an appropriate evacuation operation service in consideration of the influence of smoke when a fire occurs.

It is a schematic diagram which shows the whole structure of the elevator in Embodiment 1 of this invention. In an elevator control system, it is the block diagram which showed specifically the internal structure of the control apparatus which performs a fire control operation especially. It is a flowchart which shows operation | movement until the operation control part at the time of a fire of FIG. 2 performs control operation to evacuation operation. It is a flowchart which shows the output code signal generation method performed by the display control part 52 at the time of evacuation operation. In the elevator control system according to the second embodiment, in particular, it is a configuration diagram specifically showing an internal configuration of a control device that executes a fire control operation. It is a flowchart which shows operation | movement until the operation control part at the time of a fire of FIG. 5 performs control operation to evacuation operation.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of an elevator control device of the invention will be described with reference to the drawings.

Embodiment 1 FIG.
FIG. 1 is a schematic diagram showing an overall configuration of an elevator according to Embodiment 1 of the present invention. As shown in FIG. 1, in a machine room 2 provided at the upper part of the hoistway 1, a hoisting machine 3 having a driving sheave and a deflecting wheel 4 arranged at an interval with respect to the hoisting machine 3. And a control device 5 for controlling the operation of the elevator.

  A common main rope 6 is wound around the hoisting machine 3 and the deflecting wheel 4. Examples of the main rope 6 include a wire, a rope, and a belt.

  In the hoistway 1, a car 8 and a counterweight 9 having a smoke detector 7 provided thereon are suspended by a main rope 6. The car 8 and the counterweight 9 are moved up and down in the hoistway 1 by a driving force of the hoisting machine 3 along a car guide rail (not shown) and a weight guide rail (not shown). The car 8 and the counterweight 9 are raised and lowered in opposite directions. The operation of the hoisting machine 3 is controlled by a control device 5 provided in the machine room.

  The smoke detector 7 is connected to the control device 5 via the cable 10. When detecting smoke in the hoistway 1, the smoke detector 7 generates a smoke detection signal and transmits it to the control device 5 via the cable 10. Although the smoke detector 7 transmits a smoke detection signal to the control device 5 via the cable 10, the present invention is not limited to this. For example, it is possible to use a radio such that a smoke detection signal is transmitted from the transmitter of the smoke detector 7 and received by the receiver of the control device 5. Further, the smoke detector 7 is provided on the upper portion of the car 8, but the present invention is not limited to this. The smoke detector 7 may be provided at a desired position of the car 8 as long as it can detect smoke.

  The control device 5 is connected to a display 12 provided on the hall 11 of each floor of the building via a communication cable 13. The display 12 displays the operation status of the elevator, emergency control operation information, and the like to the user, and includes, for example, a liquid crystal indicator.

  FIG. 2 is a block diagram specifically showing the internal configuration of the control device 5 that executes the fire control operation in the elevator control system. As shown in FIG. 2, in addition to the smoke detector 7 and the indicator 12, the hoisting machine 3, the call registration device 14, and the car position sensor 15 are connected to the control device 5.

  The call registration device 14 is provided in the car 8 and at the landing 11 of each floor, and enables call registration by the user. The car position sensor 15 detects the position of the car 8 in the hoistway 1. Examples of the car position sensor 15 include an encoder provided in the hoisting machine 3.

  As shown in FIG. 2, the control device 5 includes a fire operation control unit 50, a car control unit 51, a display control unit 52, a call registration control unit 53, a smoke detection unit 54, and a car position detection unit 55. ,have.

  When the condition for switching to the fire operation control is satisfied, the fire operation control unit 50 first starts the fire control operation. As this condition, for example, when a fire alarm manual switch installed in the hall 11 or the disaster prevention room of the building is pressed, when a fire alarm installed in the building detects the occurrence of a fire, or smoke detection The case where the part 54 detects smoke is mentioned. Here, fire-time operation control refers to controlling fire control operation and evacuation operation described later.

  In the first embodiment, a case where a fire alarm installed in a building detects a fire occurrence will be described as an example. When the fire alarm detects that a fire has occurred, the fire alarm transmits fire occurrence information to the control device 5.

  When receiving the fire occurrence information, the fire operation control unit 50 first starts the fire control operation. At this time, the fire-time operation control unit 50 sends an evacuation operation instruction for moving the car 8 to the nearest evacuation floor to the car control unit 51 and displays to the display control unit 52 that a fire has occurred. A fire display instruction is sent, and an operation invalidation instruction for invalidating the call registration is sent to the call registration control unit 53. Here, examples of the evacuation floor include a floor with an entrance and an emergency exit installation floor.

  When the car control unit 51 receives an evacuation operation instruction from the fire-time operation control unit 50, the car control unit 51 moves the car 8 to the nearest evacuation floor and performs control to open the door of the car 8. As a result, the user can go out of the car 8 and evacuate. The car control unit 51 closes the door of the car 8 and transmits door closing information to the fire-time operation control unit 50 when a preset time elapses after the door of the car 8 is opened.

  Note that the car control unit 51 is based not only on a preset time period but also on a scale device that detects the boarding load of the car 8 and a camera image that captures the inside of the car 8 in order to more reliably get off the passenger. In addition, the door closing information may be transmitted to the fire-time operation control unit 50 after confirming that all users have got off the vehicle. Alternatively, a dedicated switch may be provided at the landing 11 so that a firefighter or staff confirms that all passengers have got off the vehicle, and the door closing information may be transmitted to the fire operation control unit 50 by pressing the switch.

  When the display control unit 52 receives a fire display instruction from the fire-time operation control unit 50, the display control unit 52 reads display contents corresponding to the fire display instruction from a storage unit (not shown), and displays the display contents as an output code signal via the communication cable 13. To the display unit 12. The output code signal includes, for example, information that prompts the user to evacuate and information that the elevator is unusable, in addition to information that a fire has occurred.

  The indicator 12 notifies the user at the hall 11 that a fire has occurred based on the output code signal, and also notifies the user to evacuate. In addition, when the user performs call registration from the call registration device 14, the display device 12 notifies information indicating that the elevator is disabled.

  When the call registration control unit 53 receives the operation invalidation instruction from the fire operation control unit 50, even if the user performs call registration from the call registration device 14, the call registration control unit 53 invalidates the call registration.

  In addition, the fire-time operation control unit 50 determines a floor in which an evacuation operation is possible as a means for moving a refugee who is a user who needs to evacuate in a building after the fire control operation. Evacuation operation means that after a user in the car 8 gets off the evacuation floor, a firefighter at the fire site or a staff who has received sufficient training / education about evacuation activities at the time of the fire uses an elevator This is an operation aimed at guiding the refugees in the evacuation floor to the evacuation floor. The fire operation control unit 50 includes a smoke detection region determination unit 500 and a smoke detection region storage unit 510.

  Upon receiving the door closing information from the car control unit 51, the fire-time operation control unit 50 determines that the fire control operation has been completed, and makes the car 8 reciprocate once in the hoistway 1 so that the evacuation operation is possible. Identify the stop floor area. This is to specify a range in which smoke generated by a fire is filled in the hoistway 1 when the evacuation operation is performed.

  When evacuation operation is performed without specifying a range where evacuation operation can be performed, the car 8 travels in the area filled with smoke, and the car 8 opens in the area filled with smoke. Will be allowed. At this time, in the elevators for general users who do not have smoke-proof equipment, there is a risk of smoke flowing into the car 8, and not only refugees but also firefighters and staff breathe in smoke, which causes monoxide. Risk of injury, including carbon poisoning.

  Therefore, when the fire-time operation control unit 50 determines that the fire control operation has ended, the operation control unit 50 transmits an investigation operation instruction for investigating a range where the evacuation operation is possible to the car control unit 51.

  When the car control unit 51 receives the investigation operation instruction, the car control unit 51 travels the car 8 and performs an investigation operation in which the inside of the hoistway 1 is reciprocated once. The car control unit 51 makes one reciprocation of the car 8 in the hoistway 1 and transmits reciprocation completion information to the fire-time operation control unit 50.

  Here, when the car 8 is reciprocating once in the hoistway 1, the smoke detection area determination unit 500 of the fire-time operation control unit 50 performs the smoke detection information described later from the smoke detection unit 54 and the car position detection unit 55. To obtain car position information, which will be described later.

  When the smoke detector 54 receives the smoke detection signal from the smoke detector 7 via the cable 10, the smoke detector 54 determines whether or not smoke is detected. This is because the smoke detection signal received from the smoke detector 7 may be affected by noise. Therefore, for example, the smoke detection unit 54 performs the low pass filtering of the smoke detection signal to eliminate the noise component included in the smoke detection signal, and then determines whether or not smoke is detected. The smoke detection unit 54 transmits smoke detection information to the fire-time operation control unit 50 when it is determined that smoke detection is present.

  In the car position detection unit 55, data that associates the rotation amount of the hoisting machine 3 with the height direction position of the car 8 in the hoistway 1 according to the rotation amount is stored in advance in a storage unit (not shown). It is remembered. The car position detection unit 55 receives the information on the rotation amount of the hoisting machine 3 output from the car position sensor 15 and stores the position of the car 8 in the hoistway 1 corresponding to the received rotation amount in the height direction. The car position information is detected by reading from the data of the part.

  The timing at which the smoke detection area determination unit 500 receives smoke detection information from the smoke detection unit 54 until it receives round-trip completion information from the car control unit 51 when the car 8 is traveling in the hoistway 1 according to the investigation operation instruction. The car position information at is acquired from the car position detector 55. The smoke detection area determination unit 500 includes a temporary storage unit (not shown), and stores car position information at a timing when the smoke detection information is temporarily received.

  The information stored in the temporary storage unit is not limited to the car position information at the timing when the smoke detection information is received, but may be smoke presence / absence information indicating whether smoke is detected for each floor.

  When the smoke detection area determination unit 500 receives the round-trip completion information from the car control unit 51, the smoke detection area determination unit 500 detects smoke in the height direction of the hoistway 1 in the car position information received from the temporary storage unit. The floor above the lowest end where the information is received is regarded as the smoke detection area.

  That is, when there are a plurality of car position information of the car 8 that has received the detection information in the hoistway 1, the smoke detection area determination unit 500 regards all of the areas above the lowest position as smoke detection areas. This is because smoke harmful to the human body that is generally generated during a fire stays in the hoistway 1.

  As a result, the smoke detection area determination unit 500 determines that the floor below the smoke detection area is a range where evacuation operation is possible.

  The smoke detection area determination unit 500 sends to the smoke detection area storage unit 510 the position of the lowest end of the smoke detection area, that is, the boundary position information that becomes the boundary between the position with smoke detection and the position without smoke detection. At this time, the temporary storage unit of the smoke detection region determination unit 500 is reset.

  The smoke detection area storage unit 510 stores boundary position information sent from the smoke detection area determination unit 500. The form of storage in the smoke detection area storage unit 510 differs depending on the information transmitted from the smoke detection area determination unit 500. For example, the coordinates in the height direction in the hoistway 1 are divided into desired constant intervals. The presence / absence of smoke in each area may be stored.

  When the boundary position information is stored in the smoke detection area storage unit 510, the fire-time operation control unit 50 sends an evacuation operation display instruction to start the evacuation operation to the display control unit 52, and calls the call registration control unit 53. Send invalidation cancellation instruction to cancel registration invalidation.

  At the same time, the fire-time operation control unit 50 confirms the position of the evacuation floor where the car 8 that has been subjected to the investigation operation from the car position detection unit 55 is currently stopped. When the position of the evacuation floor where the car 8 is currently stopped is lower than the boundary position information, the fire-time operation control unit 50 sends door opening information for opening the door of the car 8 to the car control unit 51. On the other hand, when the position of the evacuation floor where the car 8 is currently stopped is stopped on the upper floor with respect to the boundary position information, the fire-time operation control unit 50 sets the evacuation floor on the lower floor with respect to the boundary position information. After the car 8 is moved, post-movement door opening information for opening the door of the car 8 is sent to the car control unit 51.

  When the car control unit 51 receives the door opening information from the fire operation control unit 50, the car control unit 51 performs control to open the door of the car 8. On the other hand, when the car control unit 51 receives the post-movement door opening information from the fire-time operation control unit 50, the car control unit 51 moves the car 8 to an evacuation floor located below the boundary position information, and then opens the car 8 door. Take control. As a result, the firefighters and staff can get into the car 8 without calling and registering from the landing 11 on the evacuation floor, and can promptly guide the evacuees.

  When the display control unit 52 receives the evacuation operation display instruction from the fire-time operation control unit 50, the display control unit 52 reads the boundary position information from the smoke detection area storage unit 510, and determines the output code signal to be transmitted to each of the indicators 12 of each floor. , To the display 12 of each floor. That is, a signal indicating that evacuation operation is not possible is sent to the display unit 12 above the boundary position information, and a signal indicating that evacuation operation is possible is displayed on the display unit 12 below the boundary position information. send. In this way, the display 12 on each floor notifies the refugees who need to go, firefighters, and staff whether or not evacuation operation is possible.

  Thereby, when the door of the car 8 is open and the display 12 indicates that the evacuation operation is possible, the firefighter and the staff determine that the investigation operation is completed and the evacuation operation is possible. be able to.

  When the call registration control unit 53 receives the invalidation cancellation instruction from the fire-time operation control unit 50, the call registration control unit 53 does not invalidate the call registration from the firefighter or the staff performed from the landing 11 in the range where the evacuation operation is possible. It transmits to the hour operation control part 50. When the call registration is performed, the call registration control unit 53 reads the boundary position information from the smoke detection area storage unit 510, and whether or not the hall 11 where the call registration is performed is lower than the boundary position information. Determines whether to invalidate the call registration.

  That is, the call registration control unit 53 transmits the call registration to the fire operation control unit 50 without invalidating the call registration if the hall 11 where the call registration is performed is lower than the boundary position information. If the registered hall 11 is higher than the boundary position information, the call registration is invalidated.

  Further, when the call registration control unit 53 receives a call registration from the floor car 8 in the range where evacuation operation is possible after receiving the invalidation cancellation instruction, the call registration control unit 53 reads the boundary position information from the smoke detection area storage unit 510 and calls It is determined whether or not the registered floor is a floor capable of evacuation operation.

  That is, if the call registration performed from the car 8 is lower than the boundary position information, the call registration control unit 53 transmits the call registration to the fire operation control unit 50 without invalidating the call registration. If the call registration performed from 8 is higher than the boundary position information, the call registration is invalidated.

  When call registration is invalidated, the call registration control unit 53 may send information on invalidation of call registration to the fire-time operation control unit 50. At this time, if the call registration registered from the floor car 8 in the range where evacuation operation is possible is not a floor where evacuation operation is possible, the fire-time operation control unit 50 uses an indicator in the car 8 (not shown) You may notify a firefighter or a staff that it is a floor where evacuation operation is not possible.

  Next, an elevator control method by the fire-time operation control unit 50 will be described with reference to the flowchart of FIG. FIG. 3 is a flowchart showing an operation from the control operation to the evacuation operation by the fire-time operation control unit 50 of FIG.

  As shown in FIG. 3, the fire-time operation control unit 50 detects whether or not a condition that needs to be switched to the fire-time operation control is satisfied (step S101).

  In step S101, when the fire operation control unit 50 receives the fire occurrence information from the fire alarm, the fire operation control unit 50 determines that the condition for switching to the fire operation control is satisfied, and starts the fire control operation (step S102). , Control operation execution step). The fire control operation is an operation in which the car 8 travels to the nearest evacuation floor and the user in the car 8 gets off to the evacuation floor.

  After step S102, the fire-time operation control unit 50 receives a door closing information indicating that the car 8 door has been closed after a predetermined time has elapsed since the car control unit 51 opened the car 8 door. A survey operation instruction for reciprocating the hoistway 1 is transmitted to the car control unit 51 (step S103).

  In step S103, when the car 8 reciprocates once in the hoistway 1, the fire-time operation control unit 50 detects from the smoke detection unit 54 whether smoke is detected in the hoistway 1. (Step S104).

  In step S104, when smoke is detected, the smoke detection area determination unit 500 of the fire-time operation control unit 50 acquires the position of the car 8 at the timing when smoke is detected from the car position detection unit 55 (step S105). .

  The operation of step S105 is continued until the operation control unit 50 at the time of fire detects whether or not the investigation operation in which the car 8 reciprocates once in the hoistway 1 is completed as step S106. On the other hand, when smoke is not detected in the previous step S104, the process proceeds to step S106.

  In step S106, when the smoke detection area determination unit 500 of the fire-time operation control unit 50 receives the round-trip completion information from the car control unit 51, it determines the smoke detection area and determines the range in which evacuation operation is possible (step S107). . The smoke detection area determination unit 500 of the fire-time operation control unit 50 stores the boundary position information, which is the lowest position of the smoke detection area determined in step S107, in the smoke detection area storage unit 510 (step S108).

  Thereafter, when the fire-time operation control unit 50 stores the boundary position information in the smoke detection area storage unit 510 in step S108, the operation control unit 50 shifts from the fire control operation to the evacuation operation (step S109). Here, steps S103 to S109 are evacuation operation execution steps.

  Next, when the display control unit 52 receives an evacuation operation display instruction from the fire-time operation control unit 50, a method of generating an output code signal of display contents to be displayed on each of the indicators 12 of each floor will be described with reference to the flowchart of FIG. Will be described. FIG. 4 is a flowchart showing an output code signal generation method performed by the display control unit 52 during the evacuation operation.

  As shown in FIG. 4, when the display control unit 52 receives the evacuation operation display instruction, the smoke detection region storage unit determines whether or not the floor to which the output code signal is transmitted is a floor below the boundary position information. The boundary position information is read from 510 and confirmed (step S201).

  In step S201, when the floor to which the output code signal is transmitted is a floor above the boundary position information, the display control unit 52 determines that the evacuation operation is not possible, and the evacuation operation is performed on the floor to which the output code signal is transmitted. Impossibility information is transmitted (step S202). As a result, the display unit 12 notifies the user of information that the elevator is not available.

  On the other hand, when the floor to which the output code signal is transmitted is the floor below the boundary position information in the previous step S201, the display control unit 52 determines that the evacuation operation is possible and transmits the output code signal. Evacuation operation enable information is transmitted to the floor (step S203). As a result, information indicating that the elevator can be used is notified from the display device 12 to the user. This operation is executed for all floors.

  Such an elevator control apparatus according to Embodiment 1 is connected to a fire-time operation control unit that controls the operation of an elevator in the event of a fire, and a smoke detector installed on a car, and determines whether smoke is detected in a hoistway. And a smoke detection unit that generates smoke detection information when smoke is present, and a car position detection unit that detects a car position in the hoistway and generates car position information.

  In addition, after the fire control operation is completed, the fire operation control unit detects smoke detected by the smoke detection unit during a survey operation in which the car makes one round trip in the hoistway to check for smoke detection. A smoke detection area determination unit capable of acquiring the information and the car position information detected by the car position detection unit at the timing when the smoke detection information is detected, and specifying a range where the evacuation operation can be performed, and a smoke detection region determination unit And a smoke detection area storage unit for storing a range where the evacuation operation can be determined.

  By providing such a configuration, it is possible to specify a smoke detection area in which smoke is filled in the hoistway although there is no temperature abnormality in the hoistway or the car door in the event of a fire. As a result, it is possible to prevent the car from stopping in the area where smoke is filled in the hoistway or opening the door, and evacuation operation is limited to the floor where smoke is not detected. Can be implemented.

  In the first embodiment, whether or not the call registration at the time of evacuation operation is possible is displayed to the refugee, firefighter, and staff who need to be evacuated from the display 12 of the hall 11. The same display may be performed on the display board provided. Further, not only display but also voice notification may be used.

  Further, although not described in the first embodiment, a mechanism for detecting the temperature of the door of the car 8 described in Patent Document 1 may be provided.

Embodiment 2. FIG.
In the fire-time operation control unit 50 according to the second embodiment, considering that the smoke fills the upper part of the hoistway 1 and gradually falls to the lower floor, the evacuation operation range is set with time. An example of updating will be described.

  That is, in the first embodiment, the example has been described in which the smoke detection region storage unit 510 stores the boundary position information determined by the smoke detection region determination unit 500 in one investigation operation. On the other hand, in the second embodiment, the smoke detection area storage unit 510 stores the smoke detection area determined by the smoke detection area determination unit 500 in a plurality of investigation operations, and then detects smoke as time passes. An example of calculating an area and updating boundary position information as needed will be described.

  FIG. 5 is a configuration diagram specifically showing the internal configuration of the control device 5 that executes the fire control operation in the elevator control system according to the second embodiment. As shown in FIG. 5, the control device 5 in the second embodiment includes a fire-time operation control unit 50, a car control unit 51, a smoke detection unit 54, and a car position detection, as in the first embodiment. In addition to the unit 55, the display control unit 52, and the call registration control unit 53, it further includes a time measuring unit 56 that measures time.

  The fire-time operation control unit 50 further includes a smoke detection region calculation unit 520 in addition to the smoke detection region determination unit 500 and the smoke detection region storage unit 510 as in the first embodiment. Other configurations are the same as those of the first embodiment.

  Similarly to the first embodiment, the fire-time operation control unit 50 can perform evacuation operation by reciprocating the car 8 once in the hoistway 1 when receiving the door closing information from the car control unit 51 after the fire control operation. An investigation operation instruction for investigating the range is transmitted to the car control unit 51. Hereinafter, the first investigation operation instruction at this time is referred to as a first investigation operation instruction.

  The smoke detection area determination unit 500 sends the boundary position information based on the first investigation operation instruction to the smoke detection area storage unit 510, acquires the time from the time measuring unit 56, and associates the boundary position information with the time. The position information is sent to the smoke detection area storage unit 510.

  Here, when the car 8 reciprocates once in the hoistway 1 according to the first investigation operation instruction, the car control unit 51 transmits first reciprocation completion information to the fire-time operation control unit 50.

  The fire-time operation control unit 50 that has received the first round-trip completion information is within a range where the evacuation operation can be determined in the first investigation operation when a preset time has elapsed since the reception of the first round-trip completion information. The car 8 is reciprocated once, and a second investigation operation instruction for confirming whether or not the evacuation range is changed is transmitted to the car control unit 51. That is, the operation for investigating the range where the evacuation operation can be performed is performed twice with a preset time difference. In the second embodiment, the investigation operation is described as being twice. However, the investigation operation may be performed three or more times until the firefighter or the staff operates the elevator.

  The smoke detection area determination unit 500 sends the boundary position information based on the second investigation operation instruction to the smoke detection area storage unit 510, acquires the time from the time measuring unit 56, and associates the boundary position information with the time. The position information is sent to the smoke detection area storage unit 510.

  The car control unit 51 transmits second reciprocation completion information to the fire-time operation control unit 50 when the car 8 reciprocates once in the range in which the evacuation operation is possible in the hoistway 1 according to the second investigation operation instruction.

  Accordingly, the smoke detection area storage unit 510 stores the first boundary position information and the second boundary position information that are used in the calculation performed by the smoke detection area calculation unit 520. The smoke detection area calculation unit 520 gradually increases the smoke filling the hoistway 1 based on the time until the change from the first boundary position information to the second boundary position information. The position of the smoke presence / absence boundary moving to is calculated as the relationship between time and position.

  A case where the calculation formula executed by the smoke detection region calculation unit 520 is set to a primary formula related to time will be described. The calculation executed by the smoke detection area calculation unit 520 assumes that the boundary position of the presence or absence of smoke gradually moves to a lower position in the hoistway 1 in proportion to the first order with respect to time. 1).

    (Formula 1) z = {(z2-z1) / (t2-t1)} (t-t1) + z1 (1)

  Here, z indicates the smoke presence / absence boundary position, and the lowest floor car landing position is defined as z = 0. Further, t is time information acquired from the time measuring unit 56, and the time when the car 8 starts the reciprocating operation according to the first investigation operation instruction is defined as t = 0. Further, the boundary positions of the presence / absence of smoke detected by the reciprocating operation performed by the car 8 in the hoistway 1 twice are defined as z1 and z2, and the corresponding boundary detection times are defined as t1 and t2, respectively.

  The smoke detection area calculation unit 520 calculates boundary position information based on the above equation (1) every time a preset time elapses during the evacuation operation, and the result is stored in the smoke detection area storage unit 510. send. Therefore, the boundary position information stored in the smoke detection area storage unit 510 and used for the evacuation operation is sequentially updated.

  When the investigation operation is performed a plurality of times, the smoke detection area calculation unit 520 calculates the boundary position based on the two boundary position information stored immediately before the firefighter or the staff operates the elevator. Yes.

  Next, an elevator control method by the fire-time operation control unit 50 will be described with reference to the flowchart of FIG. FIG. 6 is a flowchart showing an operation from the control operation to the evacuation operation by the fire-time operation control unit 50 of FIG. Up to step S102 is the same as in the first embodiment.

  After step S102, the fire-time operation control unit 50 receives a door closing information indicating that the car 8 door has been closed after a predetermined time has elapsed since the car control unit 51 opened the car 8 door. A plurality of (in this example, twice) investigation operation instructions for reciprocating the hoistway 1 are transmitted to the car control unit 51 (step S303).

  When the car 8 is reciprocating once in the hoistway 1, the fire-time operation control unit 50 detects from the smoke detection unit 54 whether smoke is detected in the hoistway 1 (step S304). .

  When smoke is detected in step S304, the smoke detection area determination unit 500 of the fire-time operation control unit 50 acquires the position of the car 8 at the timing when smoke is detected from the car position detection unit 55 (step S305). .

  The operation in step S305 is continued until the operation control unit 50 at fire detects whether or not the investigation operation in which the car 8 makes one reciprocation in the hoistway 1 is completed in step S306. On the other hand, when smoke is not detected in the previous step S304, the process proceeds to step S306.

  In step S306, when the smoke detection area determination unit 500 of the fire-time operation control unit 50 receives the round-trip completion information from the car control unit 51, it determines the smoke detection area and determines the range in which evacuation operation is possible (step S307). .

  The smoke detection area determination unit 500 of the fire-time operation control unit 50 stores the boundary position information determined in step S307 in the smoke detection area storage unit 510.

  After step S307, the fire-time operation control unit 50 detects whether or not the investigation operation has been performed at least twice (step S308). In step S308, when the fire-time operation control unit 50 has not performed the investigation operation more than once, the process returns to the previous step S304.

  On the other hand, in the previous step S308, when the fire operation control unit 50 confirms that the investigation operation has been performed twice or more, the fire operation control unit 50 performs an elevator call registration operation by a fireman or staff. It is detected whether or not it has been broken (step S309). In step S309, when the elevator is not operated by the firefighter or the staff, the process returns to the previous step S304.

  On the other hand, when the elevator is operated by the firefighter or the staff in the previous step S309, the fire-time operation control unit 50 shifts from the fire control operation to the evacuation operation (step S310). At this time, the range in which the evacuation operation can be performed is determined based on the boundary position information obtained in the investigation operation immediately before the elevator is operated by the firefighter or the staff, that is, in this example, the second boundary position information.

  After step S310, the fire-time operation control unit 50 detects whether or not a preset time has elapsed (step S311). If the preset time has not elapsed in step S311, step S311 is repeated.

  On the other hand, when the preset time has elapsed in the previous step S311, the smoke detection area calculation unit 520 of the fire-time operation control unit 50 is based on the boundary position information obtained in the previous two investigation operations. The boundary position is calculated, and the boundary position information in the smoke detection area storage unit 510 is updated. On the basis of this boundary position information, the fire-time operation control unit 50 performs an evacuation operation (step S312).

  After step S312, it is detected whether or not evacuation completion information by the firefighter or staff is received (step S313). The evacuation completion information by the firefighter or staff is transmitted to the fire operation control unit 50 when, for example, a button for notifying completion of evacuation is provided on the landing 11 and the firefighter or staff presses the button. In addition, step S313 may be information not only on the button operation by the firefighter or the staff but also on the restoration work performed by the operation maintenance staff.

  In step S313, when the evacuation completion information is not received, the fire-time operation control unit 50 returns to step S311.

  Such an elevator control apparatus according to the second embodiment has a time measuring unit that measures time in addition to the configuration of the first embodiment. In addition, the fire-time operation control unit has a smoke detection area calculation unit that can calculate the position of the boundary considering that smoke goes down to the lower floor from the two boundary position information determined by the smoke detection area determination unit. doing.

  By providing such a configuration, it is possible to predict that the smoke filling the hoistway will gradually increase, and update the evacuation range as time elapses. As a result, the car can be prevented from traveling in the smoke-filled area, and the evacuation operation can be continued.

  In the second embodiment, the investigation operation is performed a plurality of times, and the smoke detection area calculation unit 520 updates the boundary position information in the smoke detection area storage unit 510 based on the boundary position information obtained in the investigation operation. ing. However, it does not have the smoke detection area storage unit 510, and the boundary position information obtained in the immediately preceding survey operation among the survey operations performed before the firefighter or staff operates the elevator. Based on the above, the fire-time operation control unit 50 may execute the evacuation operation.

  Further, in the first and second embodiments, an elevator provided with a machine room is described, but the present invention can also be used for a machine room-less elevator.

  DESCRIPTION OF SYMBOLS 1 Hoistway, 5 Control apparatus, 6 Main rope, 8 Car, 7 Smoke detector, 50 Fire operation control apparatus, 54 Smoke detection part, 55 Car position detection part, 56 Timekeeping part, 500 Smoke detection area determination part, 510 Smoke detection area storage unit, 520 Smoke detection area calculation unit.

Claims (4)

Smoke that generates smoke detection information by receiving a smoke detection signal notifying that smoke has been detected in the hoistway from a smoke detector provided in a car that is elevated in the hoistway through the main rope Detection unit,
A car position detector that detects the car position in the hoistway and generates car position information; and, in the event of a fire, performs an investigation operation that causes the car to travel across the floors in the hoistway, By acquiring the car position when receiving the smoke detection information from the smoke detection unit by the car position information received from the car position detection unit, the smoke detection region in the hoistway is specified, An elevator control device comprising: a fire operation control unit that performs an evacuation operation by limiting a range of the hoistway located below the lowest position in the smoke detection region as a car stop floor region. It further includes a timekeeping part that keeps time
The fire-time operation control unit executes the investigation operation a plurality of times, and acquires the time at which the smoke detection region is generated from the timekeeping unit every time the investigation operation is executed, thereby obtaining the smoke detection region and the time. The smoke detection area is estimated by estimating the range in which the smoke fills in the hoistway as time elapses and the smoke detection area descends to the lower floor from the information. The elevator control device according to claim 1, wherein the control device is updated as time elapses. When the above-described investigation operation is executed three or more times, the fire operation control unit determines a range in which the smoke detection area is lowered to the lower floor based on the information obtained in the immediately preceding two investigation operations. The elevator control device according to claim 2, wherein the smoke detection area is updated as a result of time estimation. Smoke that generates smoke detection information by receiving a smoke detection signal notifying that smoke has been detected in the hoistway from a smoke detector provided in a car that is elevated in the hoistway through the main rope Detection unit,
It is executed in an elevator control device that includes a car position detection unit that detects the car position in the hoistway and generates car position information, and a fire-time operation control unit that executes evacuation operation in the event of a fire. An elevator control method,
In the above fire operation control unit,
A control operation execution step for executing a fire control operation for evacuating passengers in the car to the nearest evacuation floor in the event of a fire;
After executing the control operation execution step, the investigation operation of running the car across each floor in the hoistway is executed, and the car position when receiving the smoke detection information from the smoke detection unit, The smoke detection area in the hoistway is identified by acquiring the car position information received from the car position detection unit, and the hoistway is located below the lowest end position in the smoke detection area. An evacuation operation execution step of limiting the range of the vehicle as a car stop floor area and executing the evacuation operation between floors included in the car stop floor area.

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