US 8,798,802 B2 · Queuing access to a shared power supply

Abstract

A method of queuing access to a power supply shared by a set of electrical access points. The access points turn on independently from one another and thus have independent power draws. Each access point has a specific power draw when on. The on state and associated power draw of each of access point is identified, and a load duration curve for each access point is normalized (i.e., combined with load duration curve(s)) from the other access points) into a probability distribution function. The probability distribution function is a normalized load duration curve that thus accounts for a varying set of “operating states” that may occur with respect to the set of access points (when viewed collectively). Each operating state has an associated probability of occurrence. As the operating state of the set (of access points) changes, access to the power supply is selectively queued, or de-queued (if previously queued).

Claims18

Dependent claims

A method for queuing access to a power supply shared by a set of electrical power access points, wherein each access point has a power draw value associated with said access point being in an on state, the power draw value associated with a load duration curve, the method comprising:

using a computing machine to normalize the load duration curves for a set of operating states of the access points to generate a probability distribution function, the probability distribution function having a set of probability thresholds corresponding to the number of operating states, the probability thresholds including at least one threshold representing a particular grade of service (GoS) at which access to the power supply should be queued;
and
queuing access to the power supply when, in response to a first change in operating state, the threshold representing the grade of service is met, wherein queuing access to the power supply adjusts a turn-on of an appliance associated with a particular access point;
and
de-queuing access to the power supply when, in response to a second change in operating state, the threshold representing the grade of service ceases to be met.

2 more elements

Dependencies are inferred from the claim text.

Queuing access to a shared power supply

Life of this patent

Queuing access to a shared power supply

Life of this patent

Abstract

Claims18