An emergency operation controller for an elevator is connected to other emergency operation controllers of their respective elevators through network, and each controller constitutes a node in the network. The controller generates and transmits an emergency condition detection message to other controllers in the network which constitute adjacent nodes to the controller when the controller detects an emergency condition, and receives an emergency condition detection message from other controllers which constitute adjacent nodes to the controller in the network when other controllers detect an emergency condition. The emergency condition detection message includes a propagation count. The propagation count is configured to be decremented by one, each time one controller transmits the emergency condition detection message to other controllers which constitute next adjacent nodes. The emergency condition detection message is continuously transmitted until the propagation count reaches to zero.
ELEVATOR NETWORK FOR EMERGENCY OPERATION
2019-04-04
Patent
Elektronische Ressource
Englisch
IPC: | B66B Aufzüge , ELEVATORS |
EMERGENCY OPERATION DEVICE OF ELEVATOR AND EMERGENCY OPERATION METHOD OF ELEVATOR
Europäisches Patentamt | 2015
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