Patent Document ID: 20110144819
Application ID: 12639472
Patent Flag: 0

Claim One:
1. A method for non-intrusively monitoring a load including a plurality of appliances, the method comprising: retrieving a plurality of mathematical models, each of the models modeling operation of a respective subset of the appliances; predicting a value of a respective operational parameter for each said subset of the appliances; measuring an output of the load; calculating a respective value of each of the operational parameters, the calculating being based on the mathematical models and the outputs of the load; repeating the predicting, measuring and calculating steps until a metric pertaining to a difference error between the measured output and the predicted output calculated from the operational parameter and the mathematical models is equal to or below a threshold for one said subset of the appliances; and deciding that each said appliance in the one said subset of the appliances whose metric pertaining to a difference error is equal to or below the threshold is currently operating.