地震時におけるエレベータ自動復旧運転機能の拡大

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  • Enhancement of Automatic Operation Restoration Function for Elevators After Earthquake

説明

<p>We have already commercialized an automatic operation restoration function for elevator systems that is activated by an earthquake, performing a self-diagnosis to tentatively restore elevators to normal service and eliminating the need for an inspection by field engineers. Conventionally, this system has incorporated a seismic detector in the machine room or hoistway to indirectly determine whether a self-diagnosis operation is possible. As a result, restarting of the elevator might be delayed in some situations regardless of whether the elevator equipment has actually been damaged and whether a self-diagnosis operation can be safely performed. We have now enhanced this system by positioning seismic detectors in the vicinity of the car, counterweight, traction machine, and other major components in order to measure seismic waves directly for comparison with the seismic design criteria of the equipment. In the case of a tremor smaller than the seismic design standard, the new system facilitates the provision of a field service for temporary and safe restoration of the elevator if the automatic self-diagnosis operation detects no anomaly. This is introduced in this paper.</p>

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