JP2008081290A5 - - Google Patents

Claims (9)

An elevator roll detection device that detects the amount of roll roll caused by slow shaking of buildings due to long-period earthquakes or strong winds,
The roll detection device includes a maximum stop time required for the elevator to stop at the nearest floor, an allowable swing amount that is a minimum distance until the rope in the hoistway contacts the equipment in the hoistway, and the primary of the building. An elevator rope roll detection device comprising an acceleration level calculation unit for calculating a first acceleration level of seismic acceleration using a natural period. Roll detection device claims, characterized in that the acceleration signal obtained building by applying a bandpass filter to extract only near the natural frequency of the building in the vibration waveform of the building, compared with the first acceleration level The elevator roll roll detecting device according to claim 1.

  2. The elevator according to claim 1, wherein a value at least twice the first acceleration level is set as a second acceleration level, and when the shaking of the building exceeds the second acceleration level, the operation shifts to control operation. Rope roll detection device.   2. The elevator roll roll detecting device according to claim 1, wherein the first and second acceleration levels are lower than a set value of the seismic acceleration for high sensing or low sensing.   2. The elevator roll roll detection device according to claim 1, wherein the long-period vibration control operation function continues to operate independently of normal seismic control operation.   The elevator roll roll detecting device according to any one of claims 1 to 7, wherein the first and second acceleration levels are different for each stop floor. An elevator roll detection method that detects the amount of rope roll caused by slow shaking of buildings due to long-period earthquakes or strong winds,
  The first acceleration level is determined based on the allowable run-out amount, which is the minimum distance until the rope in the hoistway contacts the equipment in the hoistway, the natural period of the building, and the maximum stop time required for the elevator to stop at the nearest floor. An elevator rope roll detection method comprising: a step of calculating; a step of obtaining building acceleration information; and a step of comparing the first acceleration level obtained in each of the steps with the acceleration information of the building. .