Abstract: A power plug for coupling an electrical appliance to an electrical power supply, comprising: a current sensor, configured to measure current supplied through the plug to the electrical appliance; a voltage sensor, configured to measure voltage supplied through the plug to the electrical appliance; a processor configured to determine power consumption data from data relating to the current and voltage measurements made by the current and voltage sensors and monitor the performance of the electrical appliance using the power consumption data; and a transmitter, configured to transmit information relating to the performance of the electrical appliance.

Abstract: An appliance operation signal processing system comprises: an input for receiving an appliance operation signal, the appliance operation signal comprising information relating to operation of an appliance; an output for outputting information relating to a recall status of the appliance; and a processor configured to: monitor an input appliance operation signal for a change in magnitude; if a change is detected: identify a component event corresponding to the change; determine whether the component event is a designated sequence start component event; if the component event is determined to be a designated sequence start component event: extract one or more features from the input appliance operation signal between the sequence start component event and a sequence stop point; determine information relating to a recall status of the appliance by inputting the one or more features into a first algorithm.

Abstract: A method for monitoring the status of an apparatus comprises processing in a processor a cyclic signal emitted and/or received by said apparatus, by sampling at least part of a plurality of cycles of the cyclic signal at n points to provide n measured values; comparing the n measured values to a predetermined distribution of values at said n points representing a first state of the apparatus; and if the n measured values fall outside predetermined criteria relating to the predetermined distribution, providing an indication that the apparatus is not in the first state.

Abstract: An appliance operation signal processing system including an input for receiving an appliance operation signal. The appliance operation signal includes information relating to operation of an appliance. The system further includes an output for outputting information relating to degradation of the appliance and a processor configured to determine a probability that the appliance or a component of the appliance is in at least one degradation state by applying a classifier to a feature vector including information relating to frequency data extracted from the appliance operation signal.

Abstract: A power plug for coupling an electrical appliance to an electrical power supply, comprising: a current sensor, configured to measure current supplied through the plug to the electrical appliance; a voltage sensor, configured to measure voltage supplied through the plug to the electrical appliance; a processor configured to: determine power consumption data from data relating to the current and voltage measurements made by the current and voltage sensors; and monitor the performance of the electrical appliance using the power consumption data; and a transmitter, configured to transmit information relating to the performance of the electrical appliance.

Abstract: A utility management device, comprising an input for receiving a utility consumption signal for a premises, an output for outputting utility management information, and a processor configured to monitor the input utility consumption signal for a change in magnitude. If a change is detected, the processor is configured to identify an appliance event corresponding to the change, obtain information relating to the projected utility consumption of the appliance for an upcoming time period, update a projected utility consumption of the premises based on the obtained information, determine whether any projected stored and/or generated utility amount at the premises is sufficient for the projected utility consumption of the premises, and, if not sufficient, cause the device to output a request to receive a utility amount from one or more other premises connected to the premises via a communication network.

Abstract: A utility management device, comprising an input for receiving a utility consumption signal for a premises, an output for outputting utility management information, and a processor configured to monitor the input utility consumption signal for a change in magnitude. If a change is detected, the processor is configured to identify an appliance event corresponding to the change, obtain information relating to the projected utility consumption of the appliance for an upcoming time period, update a projected utility consumption of the premises based on the obtained information, determine whether any projected stored and/or generated utility amount at the premises is sufficient for the projected utility consumption of the premises, and, if not sufficient, cause the device to output a request to receive a utility amount from one or more other premises connected to the premises via a communication network.

Abstract: A power plug for coupling an electrical appliance to an electrical power supply, comprising: a current sensor, configured to measure current supplied through the plug to the electrical appliance; a voltage sensor, configured to measure voltage supplied through the plug to the electrical appliance; a processor configured to: determine power consumption data from data relating to the current and voltage measurements made by the current and voltage sensors; and monitor the performance of the electrical appliance using the power consumption data; and a transmitter, configured to transmit information relating to the performance of the electrical appliance.

Abstract: A method of processing a utility consumption signal, comprising: monitoring an input utility consumption signal for a change in magnitude; if a change is detected: extracting a first portion of the input signal including the change; extracting a first set of features corresponding to the first portion; determining an event probability value for each of one or more utility consuming device state changes, the or each event probability value being determined from the first set of features and being the probability that the first portion of the signal corresponds to the change in state of the device; if none of the event probability values are above a first threshold value; searching for two or more plateaus in the first portion, wherein each pair of adjacent plateaus define a further change in magnitude of the signal between the plateaus; if two or more plateaus are detected: extracting a sub-portion of the signal corresponding to each of the further changes and each combination of the further changes; ext

Abstract: An apparatus and associated method of monitoring power consumption of an electrical device, the method comprising identifying an electrical device using a power signature unique to that device, the power signature being derived from power consumption measurements, and location information; and monitoring power consumption of such an identified device.