JP2014125288A - Elevator control system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce utilization rate of an elevator which is operated by a battery power source for emergency.SOLUTION: The elevator control system comprises: a battery power source for operating an elevator when a commercial power source stopped power supply; a changeover device for changing to operation by the battery power source when the commercial power source stopped power supply; a detection device for detecting residual capacity of the battery power source; an elevator drive device for driving a hoist machine for lifting up and down a car of the elevator; a power supply stop guide device for guiding to passengers when the commercial power source stopped power supply; and an elevator control device for outputting content according to the residual capacity of the battery power source detected by the detection device to the power supply stop guide device in response to notification about change to operation by the battery power source notified by the changeover device.

Description

  The present invention relates to an elevator having a battery for a standby power supply, and more particularly to an elevator control system having a power failure guidance device that informs a passenger that a power failure is occurring when the elevator at the time of a power failure is driven by a battery power source. .

  Patent Document 1 states that “the vehicle position indicator and the external automatic reporter that are detected when the power supply is cut off and that are backed up by the battery are used to guide the position of the car and the failure status, thereby reducing the anxiety of the passengers. ”Makes it possible to quickly rescue passengers trapped in the car.”

  In general, it is known that an elevator is provided with a power failure guide device for displaying “power outage” in the elevator car for the purpose of reporting to the passenger that a power failure is occurring at the time of a power failure.

JP 2011-168372 A

  As described above, the power failure guidance device for notifying a power failure according to the prior art is intended to alleviate anxiety of passengers. However, since a battery serving as a standby power source for an elevator has a limited battery capacity, it is important to reduce the usage rate of the elevator during a power failure and to suppress the consumption of the remaining battery. When the elevator is driven by a battery power supply during a power failure, it is necessary to extend the remaining battery life in preparation for a sick person to ride or an emergency. Further, in order to reduce the risk of confinement in the elevator due to running out of battery, it is necessary to reduce the usage rate of the elevator and create a situation where the elevator cannot be used at the timing when the remaining battery level is exhausted.

  Therefore, an elevator control system for reducing the utilization rate of an elevator operated by a battery power source in preparation for an emergency is useful.

  The disclosed elevator control system includes a battery power source for operating an elevator during a power failure of a commercial power source, a switching device that switches to the battery power source during a power failure of the commercial power source, a detection device that detects a remaining capacity of the battery power source, and an elevator ride Elevator drive that drives the hoist that raises and lowers the car, power failure guidance device for guiding passengers in the event of a commercial power failure, and control of the elevator drive and responds to notification of switching from the switching device to battery power And the elevator control apparatus which outputs the content according to the remaining capacity of the battery power supply from a detection apparatus to a power failure guidance apparatus.

  ADVANTAGE OF THE INVENTION According to this invention, the utilization factor of the elevator currently operated with a battery power supply can be reduced in preparation for an emergency.

1 is a block diagram showing an overall configuration of an elevator control system according to an embodiment of the present invention. It is the schematic which shows the display content of the power failure guidance apparatus in Example 1. FIG.

  FIG. 1 shows a configuration diagram of an elevator control system. The elevator control system includes a building power source (commercial power source) 1, a battery power source 2 that supplies power when the building power source 1 fails, a switching device 3 that switches from the building power source 1 to the battery power source 2, and the remaining battery power source 2. A battery remaining capacity detection device 4 for detecting the capacity, an elevator control power supply unit 6 for creating various power supplies to be supplied to the elevator control device 7 and other devices from each of the building power supply 1 and the battery power supply 2, and the battery power supply 2 A device relating to the power source of the battery charging circuit 9 to be charged is provided. The elevator control system is further controlled by an elevator control device 7, an elevator drive device 5 controlled by the elevator control device 7 to drive the elevator hoisting machine 8, a counterweight 11 for balancing the elevator car 10, and the elevator. A power failure guidance device 12 that is in the car 10 and is controlled by the elevator control device 7 (the control line is not shown) and operates at the time of a power failure, and an announcement device 13 provided in the power failure guidance device 12 are configured.

  When the building power source 1 fails, the power source of the elevator is switched to the battery power source 2 by the switching device 3, and the switching device 3 notifies the elevator control device 7 that the power source has been switched to the battery power source 2. In response to this notification, the elevator control device 7 controls the power failure guidance device 12 to operate. On the other hand, the elevator control device 7 inputs the remaining battery capacity from the remaining battery capacity detection device 4.

  Let the input remaining battery capacity at the rated voltage of the battery power supply 2 be X (Ah: amps / hour). K + nx (Ah) at the rated voltage of the battery power supply 2 for operating the elevator for n floors. Here, k is the power required for opening / closing the elevator door and the operation of the guide device independent of the operation floor, and is the consumed capacity (Ah) at the rated voltage of the battery power supply 2. x is the consumed capacity (Ah) at the rated voltage of the battery power source 2 for operation for one floor. When the operation is started from the floor where the elevator is stopped, the number n of floors where the elevator can be operated can be expressed by n = (X−k) / x. Driving from the floor that is stopped when the power source is switched to the battery power supply 2 is probabilistically less, responding to calls from other floors (floor calls), driving to the floor with floor calls, Get in and drive to that person's destination floor. In this case, the number of floors n that can operate the elevator is n = (X−2k) / x, but the number of floors that can be operated with a person is smaller than n.

  The values of k and x are empirically used, for example, when the elevator is trial run with the battery power source 2 and larger than the actually measured value at that time. By making the values of k and x empirically large, the value of n becomes small and the number of floors that can be operated reliably can be obtained, so that there is no risk of trapping people in the elevator. In addition, when the capacity indicated as the rated capacity of the battery power source 2 is consumed, the voltage of the battery power source 2 is often lower than the rated voltage and requires a current greater than a predetermined current. From this point of view, it is effective to set a large value empirically.

  In this way, the display content of the power failure guidance device 12 is changed using the result of obtaining the operable floor number n of the elevator according to the remaining capacity of the battery power source 2. An example in which the content of the guidance is changed will be described below using the display example of the power failure guidance device 12 shown in FIG.

  It is usually an elevator that operates from the 1st floor to the 10th floor. It is assumed that when the switching device 3 notifies the elevator control device 7 that the power source has been switched to the battery power source 2, the elevator is stopped on the third floor. As described above, when the operable floor number n of the elevator according to the remaining capacity of the battery power source 2 is obtained, it is assumed that n = 20. At this time, even if you drive from the 3rd floor where the elevator is stopped to the 10th floor, which is the top floor, it is 7 floors and below n, so it is “out of power” as shown in FIG. The message “Available in an emergency” is displayed and “Please use the stairs if possible” is displayed to encourage the use of the stairs.

  When the battery power source 2 is switched and the time elapses, the remaining capacity of the battery power source 2 decreases due to emergency use, guidance display, and natural discharge. The elevator is stopped on the third floor, and n = 5. At this time, as shown in FIG. 2 (b), instead of displaying “Emergency is available”, “Emergency can be used up to the 1st or 8th floor” is displayed.

  Furthermore, it is assumed that the operable floor number obtained based on the remaining capacity X of the battery power supply 2 at that time is n ≦ 1. At this time, as shown in FIG. 2C, “Elevator stops at the nearest floor” is displayed. As described above, since the values of k and x are increased, the operation up to the nearest floor is possible.

  At the same time, the announcement device 13 provided in the power failure guidance device 12 is in the middle of a power failure, and the broadcast content corresponding to the display content is announced to the passenger, thereby prompting the passenger to use the stairs.

  In response to the notification of switching from the switching device 3 to the battery power source 2, the elevator control device 7 controls the power failure guidance device 12 and the announcement device 13 in parallel with the control of the elevator driving device 5 by the battery power source 2. To control. The display content by the power failure guidance device 12 and the announcement content by the announcement device 13 are stored in advance in a storage device in the elevator control device 7, and the display content stored in the elevator control device 7 corresponds to the remaining capacity of the battery power supply 2. The display content and the announcement content are searched, the searched display content is output to the power failure guidance device 12, and the searched announcement content is output to the announcement device 13.

  Thus, the elevator control device 7 can selectively output from a plurality of display contents and announcement contents according to the situation of the elevator and the power source.

  A storage device that stores display content and announcement content may be provided in the power failure guidance device 12. In this case, the elevator control device 7 outputs the operable floor number n determined according to the remaining capacity of the battery power source 2 to the power failure guidance device 12, and the power failure guidance device 12 responds to the input of the operable floor number n, Based on the current position (floor), the corresponding display contents and announcement contents are retrieved from the storage device and output. As described above, the power failure guidance device 12 includes the storage device and is operated, whereby the load on the elevator control device 7 that controls the elevator driving device 5 by the battery power source 2 can be reduced.

  If a power failure guide device controlled by the elevator control device 7 is provided on each floor, the effect is further exhibited. In the above example in which the battery power source 2 is switched and the remaining capacity of the battery power source 2 decreases with time, the elevator is stopped on the third floor and n = 5. At this time, for example, in the power failure guidance device (not shown) provided on the 5th floor, the operation floor from the 3rd floor to the 5th floor is subtracted from n = 5. Is displayed. A person who waits for an elevator on the fifth floor and uses the first floor as the destination floor chooses to use the second floor or use the stairs. When using the stairs, the floor call is not generated, so the usage rate of the elevator can be reduced. Under the same conditions, the power outage guidance device (not shown) on the 10th floor displays the message “Elevator operation has been stopped”, so that the person who plans to use the elevator on the 10th floor Use the stairs without pressing.

  According to the present embodiment, it is possible to induce the passenger to suppress the use of the elevator that is operating on the battery power supply due to the power failure, the elevator usage rate can be reduced, and the battery power supply lasts longer.

  Moreover, since the use of the battery power source with a limited battery capacity can be reduced, the risk of confining the elevator due to the battery power out of battery can be reduced.

  In addition, since the battery power source lasts longer, there is an increased possibility that the remaining amount of battery power of the battery power source can be secured when it is necessary to use an elevator such as a sick person or emergency.

  1: building power supply, 2: battery, 3: switching device, 4: battery remaining capacity detection device, 5: elevator drive device, 6: elevator control power supply device, 7: elevator control device, 8: hoisting machine, 9: battery charging Circuit: 10: elevator car, 11: counterweight, 12: power failure guidance device, 13: announcement device.

Claims (3)

  A battery power source for operating the elevator in the event of a commercial power failure, a switching device for switching to the battery power source in the event of a commercial power failure, a detection device for detecting the remaining capacity of the battery power source, and raising and lowering the elevator car An elevator driving device for driving the hoisting machine, a power failure guidance device for guiding passengers in the event of a power failure of the commercial power supply, and controlling the elevator driving device, for notification of switching from the switching device to the battery power source In response, an elevator control system comprising: an elevator control device that outputs content corresponding to the remaining capacity of the battery power source from the detection device to the power failure guidance device.   2. The elevator control system according to claim 1, wherein the power failure guidance device has an announcement device that announces content according to a remaining capacity of the battery power source.   The elevator control system according to claim 1, wherein the power failure guidance device is provided on each floor.

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