Elevator control apparatus and method for minimizing an elevator group load difference
First Claim
1. An elevator control apparatus comprising:
- at least one processor; and
at least one memory comprising computer program code for one or more programs, the at least one memory and the computer program code operating together with the at least one processor to cause the apparatus to;
control an elevator group comprising at least a first elevator and a second elevator, wherein a counterweight balance of the first elevator differs from a counterweight balance of the second elevator;
determine threshold loads for the first and second elevator separately for up and down direction for each elevator, a threshold load being dependent of the counterweight balance of the corresponding elevator and being a load for which consumed energy per up-down run is approximately zero; and
control, when allocating an elevator in response to a destination call, route determination for the first and second elevators by minimizing a load difference of the first and second elevators from the threshold loads.
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Accused Products
Abstract
A method for controlling an elevator group including at least a first elevator and a second elevator, wherein a counterweight balance of the first elevator differs from a counterweight balance of the second elevator, the method including: controlling the elevator group; determining threshold loads for the first and second elevator separately for up and down direction, a threshold load being dependent of the counterweight balance of the corresponding elevator, wherein the threshold load being a load for which consumed energy per up-down run is approximately zero; and controlling, when allocating an elevator in response to a destination call, route determination for the first and second elevator involves minimizing a load difference from the threshold loads.
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Citations
20 Claims
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1. An elevator control apparatus comprising:
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at least one processor; and at least one memory comprising computer program code for one or more programs, the at least one memory and the computer program code operating together with the at least one processor to cause the apparatus to; control an elevator group comprising at least a first elevator and a second elevator, wherein a counterweight balance of the first elevator differs from a counterweight balance of the second elevator; determine threshold loads for the first and second elevator separately for up and down direction for each elevator, a threshold load being dependent of the counterweight balance of the corresponding elevator and being a load for which consumed energy per up-down run is approximately zero; and control, when allocating an elevator in response to a destination call, route determination for the first and second elevators by minimizing a load difference of the first and second elevators from the threshold loads. - View Dependent Claims (2, 3, 4, 5, 6, 14, 15, 16, 17, 18, 19, 20)
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7. A method for controlling an elevator group comprising at least a first elevator and a second elevator, wherein a counterweight balance of the first elevator differs from a counterweight balance of the second elevator, the method comprising:
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controlling the elevator group comprising at least the first elevator and the second elevator; determining threshold loads for the first and second elevator separately for up and down direction for each elevator, a threshold load being dependent of the counterweight balance of the corresponding elevator and being a load for which consumed energy per up-down run is approximately zero; and controlling, when allocating an elevator in response to a destination call, route determination for the first and second elevators comprises minimizing a load difference from the threshold loads. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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Specification