JP4497910B2 - Elevator control device - Google Patents

Description

  The present invention relates to an elevator control device during a power failure.

  A conventional elevator control device in the event of a power failure includes a rescue operation command circuit that outputs a rescue operation command signal when a power failure occurs, a rescue operation control circuit that controls rescue operation for the elevator car based on the rescue operation command signal, and a rescue A first rescue operation abort timer circuit that outputs a rescue operation abort command after a predetermined time has elapsed from the start of operation, and when the elevator car reaches the door open rescue enable zone during rescue operation, A second rescue operation abort timer circuit that outputs a rescue operation abort command after a lapse of a predetermined period of time, and a user left in the elevator car due to the use of battery power when a power failure occurs in the building Cancels the count operation of the first run-off timer circuit in an elevator control device that transports to the nearest floor Count operation release means is provided, and the rescue operation control circuit outputs a count operation release command to the count operation release means every predetermined time until the elevator car reaches the door opening rescue enable zone. There are some (see, for example, Patent Document 1).

JP-A-6-64859

  The elevator control device described in Patent Document 1 is a count operation canceling means for every elapse of a predetermined time by a rescue operation control circuit from when a power failure occurs until the elevator car reaches a door zone (a door opening rescue zone). Since the count operation release command is output, the battery power supply can be prevented from being interrupted. Therefore, the rescue operation will not be interrupted after a certain period of time since the rescue operation started, and the rescue operation can be continued as much as possible until the elevator car reaches the door zone. The possibility of rescue of users left behind will improve. However, if the elevator car arrives at the door zone and the door zone detection signal is input to the rescue operation control circuit, the door will be opened after a predetermined time elapses after the rescue operation stop signal is input to the second rescue operation stop timer circuit. Regardless of the open / closed state of the vehicle, the rescue operation will be terminated as if the rescue of the passenger has been completed. For this reason, when the rescue operation is terminated, that is, when the battery power is stopped, if the door is open or closed or opened, the door may be left half open or fully open. When this occurs, there is a risk that smoke entering the hoistway will diffuse into the building through the gaps in the door. In particular, when a door having smoke shielding performance is installed, there has been a problem that the performance cannot be sufficiently exhibited.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an elevator control device that can enhance the smoke shielding effect even after the rescue operation at the time of a power failure. .

Elevator control apparatus according to the present invention includes a battery power source for supplying electric power in place of the commercial power source during a power failure, when it is detected that the power supply source is switched from the commercial power supply to battery power, the elevator passengers outside car Power switch detection device that starts rescue operation to escape, and door status detection that detects door closing completion after door opening operation after the car has landed in the door zone in rescue operation and outputs door closing completion information Means, a rescue operation release timer that outputs rescue operation release information after a predetermined time has elapsed since the car has landed in the door zone and started the door opening operation in rescue operation, and door closing completion information from the door state detection means those If is entered, and, when the rescue operation release information from the rescue operation cancel timer is entered, provided with a battery power supply interruption means for interrupting the battery power That.

According to the elevator control device according to the present invention, the smoke shielding effect can be enhanced even after the rescue operation at the time of a power failure. Further, even when an obstacle is caught in the door at the time of a power failure due to an earthquake and the door cannot be completely closed in the rescue operation, it is possible to prevent waste of the battery power source.

Embodiment 1 FIG.
FIG. 1 is a system configuration diagram of an elevator controller according to Embodiment 1 of the present invention, and FIG. 2 is a flowchart showing control of the elevator controller according to Embodiment 1 of the present invention. In the figure, a car 8 and a counterweight 9 are suspended in a fishing bottle type by a main rope 11 in a hoistway of an elevator, and the main rope 11 is a driving sheave of a driving device 10 installed at the upper part of the hoistway. It is wrapped around Then, the rotation of the driving sheave around which the main rope 11 is wound is controlled by a control device (not shown) provided in the elevator control panel 3 to move the car 8 to each floor and Landing is taking place. Note that, during normal operation, electric power necessary for the operation of the elevator is supplied from the commercial power source 2.

  When a power failure occurs in the building during normal operation, the stop of power supply from the commercial power source 2 is detected by a power failure detection device (not shown) provided in the elevator control panel 3 and replaced with the commercial power source 2. Power supply from the battery power source 1 is started. When the power supply switching detection means 6 detects that the power supply source for the elevator apparatus has been switched from the commercial power source 2 to the battery power source 1, the normal operation of the elevator is stopped due to the capacity limitation of the battery power source 1, and the car A rescue operation is started in which passengers left in 8 are transported to the entrance / exit of the nearest floor and escaped outside the car 8. Furthermore, the power supply switching detection means 6 outputs to the rescue operation cancellation timer 7 information that the power supply power source has been switched to the battery power source 1 simultaneously with the rescue operation start. The rescue operation release timer 7 starts counting when power supply switching information from the power supply switching detection means 6 serving as count start information is input. Then, when a predetermined time has elapsed from the start of counting, rescue operation release information is output to the battery power supply cutoff means 4. The door state detection means 5 provided in the elevator control device 3 detects the door open / closed state after the car 8 has landed on the door zone. That is, after landing in the door zone, a series of door states including a door opening operation, a door full opening state, a door closing operation, and a door closing completion are detected. Then, the door closing completion information is output to the battery power shut-off means 4 after a series of door state detection. When either the rescue operation cancellation information from the rescue operation cancellation timer 7 or the door closing completion information from the door state detection unit 5 is input, the battery power cutoff unit 4 outputs a cutoff command to the battery power source 1. . The elevator control panel 3 includes the power switching detection means 6, the rescue operation release timer 7, the door state detection means 5 and the battery power shut-off means 4. The elevator control panel 3 controls the above operation during the rescue operation and also controls the elevator during the normal operation. The operations necessary for elevator operation, such as operation management and speed control, will be performed at once.

Next, the control method of the elevator control apparatus at the time of a power failure is demonstrated based on the flowchart of FIG.
When a power failure occurs during normal operation of the elevator and power supply from the battery power source 1 is started (step S201), a rescue operation is started to rescue passengers left in the car 8 out of the car 8. . When the rescue operation is started, first, it is confirmed whether or not the car 8 is stopped in the door zone where the door can be opened and closed (step S202). When the car 8 is stopped in the door zone when a power failure occurs, for example, when a power failure occurs when landing on the floor desired by the passenger, the door opening operation is started. In the event of a power failure, the car 8 is guided to the nearest door zone to land, and after the car 8 has landed in the door zone, a door opening operation is performed to allow passengers in the car 8 to escape out of the car 8. Done. If the predetermined time has not elapsed since the power supply switching information from the power supply switching detection means 6 was input to the rescue operation release timer 7 (step S203), the rescue operation is continued. Then, after the door opening operation, the state in which the door is fully opened is maintained, and when a predetermined time elapses after the door is fully opened or a door closing command is issued by a passenger or the like, the door closing operation is started and the door is completely closed. When a series of operations from the door opening operation to the door closing completion is completed and the door state detecting means 5 detects the door closing completion (step S204), the battery power supply cutting means 4 cuts off the battery power supply 1 (step S206). ), Rescue operation is stopped. If the door state detection means 5 does not detect the completion of the door closing, the rescue operation is further continued. However, even if the door closing detection is not detected by the door state detection means 5, if a predetermined time has elapsed after the rescue operation cancel timer 7 starts counting (step S203), the rescue operation cancel timer 7 On the basis of the rescue operation release information, the battery power source 1 is interrupted by the battery power source interrupting means 4 (step S206), and the rescue operation is stopped.

  According to the first embodiment of the present invention, the rescue operation started due to the power failure is basically stopped after the battery power supply 1 is shut off after the door state detection means 5 detects the door closing completion. Therefore, even if a fire occurs at the time of a power failure, there is no possibility that smoke that has entered the hoistway will diffuse into the building through the door. In particular, when a door having smoke shielding performance is used, the door is completely closed, so that the performance can be sufficiently exhibited. For this reason, it becomes a particularly effective means when a power failure occurs due to an earthquake that is highly likely to cause a fire. Further, since the door is completely closed after the rescue operation, it is possible to prevent the passenger from getting into the car 8 without knowing the power failure. In addition, when the door closing detection unit 5 does not detect the door closing completion within a predetermined time after the rescue operation is started, the rescue operation release timer 7 shuts off the battery power 1 and the rescue operation ends. For example, when an obstacle is caught in the door at the time of a power failure due to an earthquake and the door cannot be closed completely, the battery power supply 1 is shut off by the rescue operation release timer 7, so that the battery power supply 1 is wasted. Can be prevented. Therefore, in order to effectively use the interruption of the battery power source 1 due to the door closing completion and the interruption of the battery power source 1 when the door closing completion is not performed, the rescue operation release timer 7 provides the battery power interruption means 4 to Since the rescue operation release information that is output in this manner needs to be performed after the rescue of the passenger, it is necessary to set the time until the information transmission to some extent.

  In the first embodiment of the present invention, the battery power supply 1 is cut off immediately after the door closing is completed, but assuming that the passenger is left in the car 8 when the door closing is completed, It is good also as a structure which interrupts | blocks the battery power supply 1 after predetermined time progress, after the completion of door closing so that the passenger can get off or transmit a rescue signal. The rescue operation release timer 7 starts counting when the power supply source is switched from the commercial power source 2 to the battery power source 1 by the power switch detection unit 6, but the door state detection unit 5 completes the door closing. When the battery power supply 1 is not detected over a long period of time, it is sufficient that a command to shut off the battery power supply 1 is issued. Therefore, the time when the rescue operation release timer 7 starts counting is not particularly limited to the time when power supply switching is detected. For example, it is good also as a structure which makes the time of the door start operation | movement at the time of the door zone landing of the car 8 after a power failure detection, and the time of the door opening operation detection after the door zone landing of the car 8 start. When the count start time is set as described above, it is possible to ensure a certain rescue time regardless of the length of time when the car 8 arrives at the door zone.

1 is a system configuration diagram of an elevator control device according to Embodiment 1 of the present invention. It is a flowchart which shows control of the elevator control apparatus in Embodiment 1 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Battery power supply 2 Commercial power supply 3 Elevator control panel 4 Battery power supply cutoff means 5 Door state detection means 6 Power supply switching detection means 7 Rescue operation cancellation timer 8 Car 9 Counterweight 10 Drive device 11 Main rope

Claims (2)

Battery power to supply power instead of commercial power in the event of a power failure,
When detecting that the power supply source has been switched from the commercial power source to the battery power source, a power source switching detection device for starting a rescue operation for escaping an elevator passenger out of the car ;
After the car has landed in the door zone in the rescue operation, the door state detection means for detecting the door closing completion after the door opening operation and outputting the door closing completion information,
A rescue operation release timer the car after a predetermined time has elapsed from the start of the door-opening operation by implantation in the door zone, and outputs a rescue operation release information in the rescue operation,
If the door closing completion information from said door state detection means is input, and, when the rescue operation release information from the rescue operation cancel timer is input, and a battery power supply interruption means for interrupting the battery power supply An elevator control device characterized by that. The battery power source interrupting means, characterized by interrupting said battery power from the is door-closing completion information or rescue operation cancellation information from the rescue operation release timer from the door state detection means is input after a predetermined time has elapsed The elevator control device according to claim 1 .

Images