JP5637644B2 - Elevator control device and elevator control method - Google Patents

Description

  Embodiments described herein relate generally to an elevator control device and an elevator control method.

  Conventionally, an elevator has been provided with an emergency power source, and the elevator is continuously operated by power from the emergency power source when a power failure occurs.

  When continuous operation is being performed by power from the emergency power supply, if the power capacity decreases and it becomes difficult to continue operation, in the event of an emergency, power can be transferred from the emergency power supply provided to other elevators. There is a corresponding technology.

JP 2011-162332 A

  On the other hand, when a power failure occurs in a building, there is a case where the operation using the emergency power supply cannot be started immediately depending on the operation state of the elevator immediately before the occurrence. For example, when an unexpected power failure occurs while the elevator car is running and the motor drive of the hoisting machine is forcibly stopped, there are many error items related to operation control in the elevator control panel. It takes several tens of minutes to several hours for the handling process.

  Further, when a plurality of elevators are installed in a building, there may be a situation in which an elevator that can be restarted immediately by an emergency power supply after a power failure occurs and an elevator that cannot be restarted immediately.

  Normally, when multiple elevators are installed in the same building, emergency power supplies are installed for each elevator, but it takes a lot of time to deal with error items when a power failure occurs, so operation with an emergency power supply is required. However, even if there was an elevator that did not start for a long time, there was a problem that the emergency power supply could not be used effectively.

  The present invention has been made in view of the above circumstances, and is installed in each of a plurality of elevators in a building, and can effectively utilize a plurality of emergency power supply devices installed for each of the elevators during a power failure. An object is to provide an elevator control device and an elevator control method.

According to the embodiment for achieving the above object, an elevator control device installed in each of a plurality of elevators installed in a building includes an emergency power supply switching unit and an operation control unit . When a power failure occurs, the emergency power supply switching unit determines whether or not it takes a predetermined time or more before restarting the operation of the own elevator. When it is determined that it does not take the predetermined time before the operation is resumed, power is supplied to the own elevator from the emergency power supply device installed corresponding to the own elevator. Further, when it is determined that it takes more than the predetermined time to resume operation, electric power is supplied to another elevator from an emergency power supply device installed corresponding to the own elevator. The operation control unit determines that the emergency power supply unit does not take a predetermined time until the operation of the own elevator resumes, and supplies power to the own elevator from an emergency power supply device installed corresponding to another elevator in the building. Is recognized from the remaining capacity information of the emergency power supply installed corresponding to the own elevator and the remaining capacity information of the emergency power supply installed corresponding to the other elevator. The total power remaining capacity information for the elevator is calculated, and the operation mode related to the traveling speed of the elevator car is switched based on the calculated total power remaining capacity information.

The block diagram which shows the structure of the elevator system using the elevator control apparatus by one Embodiment. The flowchart which shows the emergency power supply switching process of the elevator system using the elevator control apparatus by one Embodiment. The flowchart which shows the switching process of the operation mode of the elevator system using the elevator control apparatus by one Embodiment.

<Configuration of Elevator System Using Elevator Control Device According to One Embodiment>
A configuration of a system using an elevator control device (elevator control panel) according to an embodiment of the present invention will be described with reference to FIG.

  The elevator system 1 according to the present embodiment is installed corresponding to a plurality of elevators (first elevator 10, second elevator 20, and third elevator 30) installed in a building to be managed and the first elevator 10. The emergency power supply device 11 installed, the emergency power supply device 21 installed corresponding to the second elevator 20, and the emergency power supply device 31 installed corresponding to the third elevator 30 are provided.

  The first emergency power supply device 11 is a power supply device installed corresponding to the first elevator 10, but power is supplied to the second elevator 20 or the third elevator 30 by switching the connection by the switching device 12. Is possible.

  The second emergency power supply device 21 is a power supply device installed corresponding to the second elevator 20, but power is supplied to the first elevator 10 or the third elevator 30 by switching the connection by the switching device 22. Is possible.

  The third emergency power supply device 31 is a power supply device installed corresponding to the third elevator 30, but power is supplied to the first elevator 10 or the second elevator 20 by switching the connection by the switching device 32. Is possible.

  The first emergency power supply device 11 is provided with a remaining capacity monitoring device 13 for monitoring the remaining capacity of the power supply device, and the second emergency power supply device 21 is provided with a remaining capacity for monitoring the remaining capacity of the power supply device. A monitoring device 23 is installed, and a remaining capacity monitoring device 33 for monitoring the remaining capacity of the power supply device is installed in the third emergency power supply device 31.

  The first elevator 10, the second elevator 20, and the third elevator 30 are respectively wound up to raise and lower the elevator control panels 101, 201, 301, the cars 102, 202, 302, and the cars 102, 202, 302, respectively. Machine 103, 203, 303.

  The elevator control panels 101, 201, and 301 have operation control units 101A, 201A, and 301A, and emergency power supply switching units 101B, 201B, and 301B, respectively.

  The operation control units 101A, 201A, and 301A operate the elevators 10, 20, and 30 based on the destination registration information acquired from the cars 102, 202, and 302, for example, the motor drive and the car of the hoists 103, 203, and 404. 102, 202, 302 door opening and closing is controlled.

  When a power failure occurs, the emergency power supply switching units 101B, 201B, and 301B determine whether or not it takes a predetermined time or more before restarting the operation of the corresponding own elevators 10, 20, and 30. When it is determined that it does not take a predetermined time to resume operation, power is supplied to the elevators 10, 20, 30 from the emergency power supply apparatuses 11, 21, 31 installed corresponding to the elevators 10, 20, 30. .

  When it is determined that it takes a predetermined time or more to resume operation, power is supplied to the other elevators in the building from the emergency power supply devices 11, 21, 31 installed corresponding to the own elevators 10, 20, 30. Let

<Operation of Elevator System Using Elevator Control Device According to One Embodiment>
Next, operation | movement of the elevator system 1 using the elevator control apparatus by this embodiment is demonstrated with reference to the flowchart of FIG. 2 and FIG.

  FIG. 2 shows an emergency power supply destination switching process executed in the control panel of each elevator when a power failure occurs in the building. Here, an example of an emergency power supply destination switching process executed by the elevator control panel 101 of the first elevator 10 will be described.

  At normal times, the operation of the hoisting machine 103 and the car 102 is controlled by the operation control unit 101A of the elevator control panel 101 based on the destination floor registration information in the car 102 and the like.

  When a power failure occurs (S1), the operation control unit 101A executes a response process related to an error item in the elevator control caused by the power failure (S2). This handling process is set in advance for each error item, and is a process necessary for restarting the operation of the first elevator 10 with the power from the emergency power supply device.

  The number and content of elevator control error items vary greatly depending on the operating condition of the elevator immediately before the occurrence of a power failure. For example, if a power failure occurs while the car is running and the motor drive of the hoisting machine is forcibly stopped, there are many error items that require time for response processing, and several tens of hours are required before the elevator restarts. It takes several minutes to several hours. On the other hand, when a power failure occurs when the car is stopped on any floor, the number of occurrences is smaller than when the car is traveling, and the elevator can immediately resume operation.

  Here, the emergency power supply switching unit 101B determines whether or not it takes a predetermined time or more to resume operation of the first elevator 10 from the number and contents of the error items that have occurred (S3).

  When it is determined that it does not take more than a predetermined time to resume operation ("NO" in S3), electric power is supplied from the first emergency power supply device 11 installed corresponding to the own first elevator 10 to the own first elevator 10. The switching device 12 is switched so as to supply (S4).

  Further, when it is determined that the resumption of operation takes a predetermined time or more (“YES” in S3), another immediate resumption of operation can be performed from the first emergency power supply device 11 installed corresponding to the first elevator 10. The switching device 12 is switched to supply power to the second elevator 20 or the third elevator 30 (S5).

  By switching in this way, the first emergency power supply device 11 that is not used for a long time at the time of a power failure can be effectively used by the other second elevator 20 or the third elevator 30 in the building. Which of the second elevator 20 and the third elevator 30 in the building is connected to is automatically selected based on the operation frequency of the elevator and a preset priority. Alternatively, it may be manually selected by an administrator.

  When these power supply source switching processes are performed, it is confirmed whether or not the commercial power supply has been restored (S8). If the commercial power supply is restored, the power supply from the emergency power supply 11 is stopped and switched to supply power from the commercial power supply to the elevators 10 to 30 (S9). Is repeated (“NO” in S8).

  This emergency power supply switching process is similarly executed in the second elevator 20 and the third elevator 30.

  Further, the operation mode switching operation executed in parallel with the power supply source switching process as described above will be described with reference to the flowchart of FIG.

  FIG. 3 shows the operation mode switching operation executed by the operation control unit of the control panel of each elevator when a power failure occurs in the building. Here, an example of operation mode switching operation executed by the operation control unit 301A of the elevator control panel 301 of the third elevator 30 will be described.

  In the normal time, the operation of the hoisting machine 303 is controlled by the operation control unit 301A in the first operation mode in which the car 302 runs at a preset normal speed (for example, 60 m / min).

  When a power failure occurs (S11), the operation control unit 301A recognizes the emergency power supply device that is the power supply source for the current third elevator 30 (S12).

  For example, it is determined by the emergency power supply switching operation described above that the third elevator 30 does not require time to resume operation (step S3 “NO” in FIG. 2), and the first elevator 10 takes more than a predetermined time to resume operation. Is determined so that power is supplied from the first emergency power supply 11 to the third elevator 30, the operation control unit 301A of the third elevator 30 performs the first emergency power supply 11 and the third emergency Power supply device 31 is recognized as a power supply source.

  Next, the remaining capacity information is acquired from the remaining capacity monitoring device 13 of the first emergency power supply device 11 recognized as the recognized supply source and the remaining capacity monitoring device 33 of the third emergency power supply device 31, respectively. Then, the power remaining capacity information for the third elevator 30 is calculated (S13).

  Next, the operation mode to be controlled is determined based on the calculated total power remaining capacity information (S14). During a power outage, control is generally performed in the second operation mode in which the car 302 is driven at a lower speed (for example, 40 m / min) than during normal operation. However, power is supplied from a plurality of emergency power supplies. When the possible total power remaining capacity information exceeds a predetermined value, it is determined that the control is performed in the first operation mode at the same speed (60 m / min) as usual, and the total power remaining capacity information is less than the predetermined value. When it has become, it is determined that the control is performed in the third operation mode at a lower speed (for example, 20 m / min) than the speed at the time of a general power failure.

  When the determined operation mode is different from the previous determination (S15 “YES”), the operation mode is switched to the newly determined operation mode (S16). When it is the same as the previous determination (“NO” in S15), the operation mode is continued as it is.

  These operation mode switching processes are continued until the commercial power supply is restored ("NO" in S17).

  This operation mode switching process is similarly executed in the first elevator 10 and the second elevator 20.

  According to the above embodiment, when a power failure occurs in a building where a plurality of elevators are installed, the emergency is installed corresponding to an elevator that cannot be immediately resumed due to the situation at the time of the power failure. By effectively using the power supply in another elevator, it is possible to provide a user with a highly convenient elevator operation.

  This allows, for example, more emergency power supplies to be used in an elevator that has resumed operation immediately after a power outage, so that the car can travel more than normal power outages to evacuate the user. The speed can be increased and the user can be moved quickly. In addition, since a plurality of emergency power supplies can be used, the operation time during a power failure can be extended.

  Although the embodiment of the present invention has been described, this embodiment is presented as an example and is not intended to limit the scope of the invention. The novel embodiment can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. This embodiment and its modifications are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 1 ... Elevator system 10 ... 1st elevator 11 ... 1st emergency power supply device 12, 22, 32 ... Switching device 13, 23, 33 ... Remaining capacity monitoring device 20 ... 2nd elevator 21 ... 2nd emergency power supply device 30 ... 3rd elevator 31 ... 3rd emergency power supply device 101, 201, 301 ... Elevator control panel 101A, 201A, 301A ... Operation control part 101B, 201B, 301B ... Emergency power supply switching part 103, 203, 303 ... Winding machine

Claims (4)

In an elevator control device installed in each of a plurality of elevators installed in a building,
When a power failure occurs, it is determined whether or not it takes a predetermined time or more before resuming operation of the own elevator. When it is determined that it takes more than the predetermined time before restarting the operation, power is supplied to the other elevators from the emergency power supply installed corresponding to the own elevator. and emergency power supply switching unit for switching manner makes,
The emergency power supply unit determines that it does not take the predetermined time before the operation of the own elevator is resumed, and switches to supply power to the own elevator from an emergency power supply device installed corresponding to another elevator in the building. From the remaining capacity information of the emergency power supply installed corresponding to the elevator and the remaining capacity information of the emergency power supply installed corresponding to the other elevator. An elevator control device comprising: an operation control unit that calculates total power remaining capacity information for an elevator and switches an operation mode related to a traveling speed of a car of the own elevator based on the calculated total power remaining capacity information . When the emergency power supply switching unit determines that it will take more than the predetermined time before resuming the operation, another elevator as a power supply destination is selected from a plurality of elevators as an operation frequency or a preset priority. The elevator control device according to claim 1, wherein the selection is based on The emergency power supply switching unit determines whether or not the commercial power supply has been restored after a power failure at predetermined time intervals, and when determining that the commercial power supply has been restored, stops the power supply from the emergency power supply device. The elevator control device according to claim 1 or 2, characterized by the above-mentioned. An elevator control device installed in each of a plurality of elevators installed in the building
When a power failure occurs, it is determined whether or not it takes a predetermined time or more before restarting the own elevator,
When it is determined that it does not take the predetermined time before the operation of the own elevator is resumed, power is supplied to the own elevator from an emergency power supply device installed corresponding to the own elevator,
When it is determined that it takes more than the predetermined time to resume operation of the own elevator, switching is performed so that power is supplied to the other elevator from the emergency power supply device installed corresponding to the own elevator,
When it is determined that it does not take the predetermined time before the operation of the elevator is resumed, and it is recognized that the emergency power supply device installed corresponding to the other elevator in the building has been switched to supply power to the elevator Then, from the remaining capacity information of the emergency power supply installed corresponding to the own elevator and the remaining capacity information of the emergency power supply installed corresponding to the other elevator, the total remaining power capacity for the own elevator Calculates information and switches the operation mode related to the traveling speed of the elevator car based on the calculated total power remaining capacity information
The elevator control method characterized by the above-mentioned .

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