Method and system for determining instantaneous peak power consumption in elevator banks
First Claim
1. A method for determining, for any instant in time, total peak power consumption for a bank of elevator cars, comprising;
- determining, for each car in response to receiving a hall call, a set of all possible paths to service all hall calls assigned to the ear, in which each path includes a set of all possible segments;
determining a peak power consumption for each possible segment;
adding the peak power consumptions for the set of all possible segments for each time instant to determine a total peak power consumption for each time instant; and
selecting a particular path as a schedule to operate the bank of elevator cars, if the total peak power consumption for any instant in time while operating according to the selected schedule is below a predetermined threshold.
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Abstract
A method and system determine peak power consumption over time by a bank of elevator for servicing a set of passenger hall calls and delivery requests, and selecting elevator schedules that keep peak power consumption below a predetermined threshold. For each car in response to receiving a hall call, a set of all possible paths to service all hall calls assigned to the car are determined, in which each path includes a set of all possible segments. A peak power consumption for each possible segment is also determined. The peak power consumptions for the set of all possible segments for each time instant are added to determine a total peak power consumption for each time instant, and a particular path is selected as a schedule to operate the bank of elevator cars, if the total peak power consumption for any instant in time while operating according to the selected schedule is below a predetermined threshold.
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Citations
19 Claims
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1. A method for determining, for any instant in time, total peak power consumption for a bank of elevator cars, comprising;
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determining, for each car in response to receiving a hall call, a set of all possible paths to service all hall calls assigned to the ear, in which each path includes a set of all possible segments; determining a peak power consumption for each possible segment; adding the peak power consumptions for the set of all possible segments for each time instant to determine a total peak power consumption for each time instant; and selecting a particular path as a schedule to operate the bank of elevator cars, if the total peak power consumption for any instant in time while operating according to the selected schedule is below a predetermined threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A system determines, for any instant in time, total peak power consumption for a bank, of elevator cars, comprising:
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means for determining, for each car in response to receiving a hall, call, a set of all possible paths to service all hall calls assigned to the car, in which each path includes a set of all possible segments; means for determining a peak power consumption for each possible segment; means for adding the peak power consumptions for the set of all possible segments for each time instant to determine a total peak power consumption for each time instant; and means for selecting a particular path as a schedule to operate the bank of elevator cars, if the total peak power consumption for any instant in time while operating according to the selected schedule is below a predetermined threshold. - View Dependent Claims (19)
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Specification