Method, device and system for energy management

摘要

The present application relates to carrying out energy management based on context information. In the method, apparatus and system according to the application, a context vector (820) is used to select a operational state plurality of operational state vectors (825, 835). The plurality of operational state vectors are indicative of the state and/or energy consumption of different operational units in the corresponding context. The selected operational state vectors are then used together in adapting an operational state of the operational units according to the needs in the context (855). There is also a method and devices for forming a data structure (810) that can be used in the selection of the operational state vectors. The method can be used in the energy management of mobile devices, where the operational units are components of these devices and the context can include data from sensors. The method may use an associative memory such as a sparse distributed memory in storing operational state vectors.

主权项

1. A method comprising:
providing, by an apparatus, a data structure comprising context vectors and operational state vectors of a plurality of operational units in a system, the data structure having an association between said context vectors and said operational state vectors, and the operational units including hardware, software applications, or a combination thereof; receiving, by the apparatus, a context vector of the system; using, by the apparatus, said context vector and a distance measure to select a plurality of operational state vectors, the plurality of operational state vectors being indicative of operational states and respective power consumption states of the operational units, and the respective power consumption states including one or more power-performance ratios and one or more transition costs; and modifying, by the apparatus, the selected operational state vectors using a teaching operational state vector associated with said context vector by increasing a value of an element corresponding to the active operational unit in the teaching operational state vector according to said distance measure.