Elevator backup system

Abstract

The operation of the elevator will continue without interruption, even when the control entity for the group management of the elevator is switched. [Solution] The backup system comprises a second group management control device that can replace the first group management control device, and a backup processing unit. The second group management control device comprises a first interface for actual connection to the network and a second interface for virtual connection to the network. When the first group management control device is operating normally, the second group management control device sets the actual connection via the first interface to "disabled" while setting the virtual connection via the second interface to "enabled". When the first group management control device becomes unable to operate normally, the backup processing unit instructs the second group management control device to set the actual connection via the first interface to "enabled" and the virtual connection via the second interface to "disabled".

Claims

1. A backup system applicable to elevators where the destination floor registration device is connected to the first group control device via a network, while the elevator control devices that control each car are connected to the first group control device without going through the network. A second group control device that can replace the first group control device, A backup processing unit that controls the switching from the first group control device to the second group control device, Equipped with The second group control device described above is: An interface for actual connection to the network, wherein the setting for enabling / disabling the actual connection can be switched, and the first interface is assigned the same IP address as the interface for actual connection of the first group management control device to the network, An interface for virtual connection to the aforementioned network, comprising a second interface capable of switching the setting of the virtual connection on or off, Equipped with, When the first group control device is operating normally, the second group control device sets the actual connection via the first interface to be disabled, while setting the virtual connection via the second interface to be enabled. An elevator backup system in which, when the first group control device becomes unable to operate normally, the backup processing unit instructs the second group control device to enable the actual connection via the first interface and disable the virtual connection via the second interface.

2. The first group management control device, when it is operating normally, transmits an "alive" status signal to the backup processing unit without going through the network. The backup processing unit, Based on the transmission status of the alive status signal from the first group control device, a determination (A) is made as to whether the first group control device is operating normally. The elevator backup system according to claim 1, wherein if the judgment (A) determines that the system is not operating normally, the system commands the second group management control device to enable the actual connection via the first interface and disable the virtual connection via the second interface.

3. The second group management control device operates normally on the condition that either the actual connection via the first interface or the virtual connection via the second interface is enabled. The elevator backup system according to claim 1 or 2, wherein the second group control device, when operating normally, acquires operation data for each elevator car from the elevator control device without going through the network, and uses the operation data to perform learning to optimize group control.

4. The first group control device also includes the first interface and the second interface, If the first group control device becomes unable to operate normally, and the actual connection via the first interface provided by the second group control device is enabled and replaced by the first group control device, the second group control device will continue to operate as a new first group control device. On the other hand, the first group control device that has become unable to operate normally is subsequently used as a new second group control device when it recovers and becomes able to operate normally, as an elevator backup system according to claim 1 or 2.

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