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US 2016/0107862 A1Published application
Safety system for elevator
AssigneeKone Corporation
InventorAri KATTAINEN
Life of this patent
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Abstract
According to few examples a safety system, a method and a computer program for an elevator safety system is provided. A first switch configured to detect a first position of a safety device of an elevator. A second switch configured to detect a second position of the safety device. A controller configured to monitor a change of a state of the first switch and a change of a state of the second switch.
Claims20
A safety system of an elevator, comprising:
- a first switch configured to detect a first position of a safety device of an elevator;
- a second switch configured to detect a second position of the safety device;
- and
- a controller configured to monitor a change of a state of the first switch and a change of a state of the second switch,
- wherein the controller is further configured to monitor a sequence or an order of the changes of the states, wherein the sequence or the order is desired or non-desired.
2 more elements
A method of a safety system of an elevator, comprising the steps of:
- detecting, by a first switch, a first position of a safety device of an elevator;
- detecting, by a second switch, a second position of the safety device;
- monitoring, by a controller, a change of a state of the first switch and a change of a state of the second switch;
- and
- monitoring, by the controller, a sequence or an order of the changes of the states, wherein the sequence or the order is desired or non-desired.
2 more elements
Dependencies are inferred from the claim text.