Abnormality detection apparatus for passenger conveyor
AssigneeMitsubishi Electric Corporation
InventorKenji Ogura
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Abstract
Provided is an abnormality detection apparatus for a passenger conveyor, including: a first sensor arranged at an upper horizontal portion; a second sensor arranged at a lower horizontal portion; and a control device configured to receive respective outputs of the first sensor and the second sensor, wherein the first sensor and the second sensor are each configured to measure a distance to a side surface of each of steps along a traveling direction of each of steps, and wherein the control device is configured to detect abnormality of the passenger conveyor based on a change amount of each of measurement values given by the first sensor and the second sensor.
Claims4
An abnormality detection apparatus for a passenger conveyor, comprising:
- a first sensor arranged at an upper horizontal portion;
- a second sensor arranged at a lower horizontal portion;
- and
- a control circuit configured to receive respective outputs of the first sensor and the second sensor,
- wherein the first sensor and the second sensor are each configured to measure a distance to a side surface of each of a plurality of steps along a traveling direction of the plurality of steps,
- wherein the control circuit is configured to detect abnormality of the passenger conveyor based on a change amount of each of measurement values given by the first sensor and the second sensor,
- wherein the first sensor includes a pair of upper sensors which are arranged at the upper horizontal portion so as to be apart from each other in the traveling direction of the plurality of steps, and
- wherein the second sensor includes a pair of lower sensors which are arranged at the lower horizontal portion so as to be apart from each other in the traveling direction of the plurality of steps.
Dependencies are inferred from the claim text.