ELEVATOR POSITION DETECTION APPARATUS
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Abstract
A detection subject body provided in a hoistway includes an ID sequence formed by arranging three or more types of segments having different magnetic properties in a movement direction of an elevating body. An eddy current type detection unit is provided on the elevating body to generate signals corresponding to the magnetic properties of the respective segments. An identification unit identifies the respective types of the segments on the basis of the signals from the detection unit, and outputs a time series signal in a different output condition depending on the type of each segment. A digital data conversion unit converts the time series signal into digital data, on the basis of variations in the output condition of the time series signal from the identification unit. A position specification unit specifies the position of the elevating body on the basis of the digital data.
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Citations
13 Claims
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1-6. -6. (canceled)
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7. :
- An elevator position detection apparatus, comprising;
a detection subject body provided in a hoistway and including an ID sequence formed by arranging three or more types of segments respectively having different magnetic properties in a movement direction of an elevating body, wherein segments having a different magnetic property to a magnetic property of a space within the hoistway are disposed on respective ends of the ID sequence in the movement direction of the elevating body; an eddy current type detection unit provided in the elevating body to generate signals corresponding to the magnetic properties of the respective segments by applying a magnetic field to the ID sequence while passing through a position of the detection subject body; an identification unit that identifies the respective types of the segments on the basis of the signals from the detection unit, and outputs a time series signal, in a different output condition depending on the type of each segment; a digital data conversion unit that converts the time series signal into digital data on the basis of variations in the output condition of the time series signal from the identification unit; and a position specification unit that specifies a position of the elevating body on the basis of the digital data from the digital data conversion unit, wherein the different types of segments forming the ID sequence are constituted by different types of conductors, and one of the types of the segments disposed so as to avoid the respective ends of the ID sequence is an insulation portion. - View Dependent Claims (8, 9, 10, 11, 12, 13)
- An elevator position detection apparatus, comprising;
Specification