Abstract: The invention comprises a method for controlling the level of background reading of the sensors of a smartphone in order to continuously and incrementally track its location in an energy-efficient manner based on the situations its user faces habitually. More specifically, the present invention can be regarded as a new approach for continuous and incremental location tracking of a personal mobile device that best balances energy consumption with location accuracy during daily routine activities of a given user.

Abstract: The invention comprises a method for controlling the level of background reading of the sensors of a smartphone in order to continuously and incrementally track its location in an energy-efficient manner based on the situations its user faces habitually. More specifically, the present invention can be regarded as a new approach for continuous and incremental location tracking of a personal mobile device that best balances energy consumption with location accuracy during daily routine activities of a given user.

Abstract: The invention comprises a method for controlling trust and confidentiality during pervasive computing transactions supporting users' daily activities. More specifically, the present invention can be regarded as a new approach for providing users with a digital environment for performing personal, business and public routine tasks in collaboration with others, yet preserving the various levels of control existing in conventional human-to-human transactions.

Abstract: Smartphones have increasingly been used for individual and collective protection, despite the lack of specialized methods and solutions capable of extracting all the hidden potential of the junction of hardware, software and people. Effectively having those devices as instruments for triggering and coordinating individual and collective reactions to crises and threats requires a practical and integrated design, whereas different aspects must be considered. The present invention allows a smartphone user to easily and properly share his status during distress situations with people who can better help him contextually and reliably.