Technologies for Ambient Assisted Living: Ambient Communication and Indoor Positioning

................................................................................................................... I PREFACE AND ACKNOWLEDGEMENTS ........................................................... III CONTENTS ................................................................................................................... V LIST OF FIGURES .................................................................................................... VII LIST OF PUBLICATIONS ........................................................................................ IX AUTHOR'S ROLE IN THE PUBLICATIONS ........................................................................ X SUMMARY AND MAIN CONTRIBUTIONS OF THE PUBLICATIONS.................................... X LIST OF ABBREVIATIONS .................................................................................. XIII 1 BACKGROUND AND MOTIVATION ................................................................... 1 2 SCOPE, OBJECTIVES AND OUTLINE OF THE THESIS ................................. 3 3 PREVENTING LONELINESS USING AMBIENT COMMUNICATION AND SENSE OF PRESENCE ....................................................................................... 5 3.1 RELATED WORK ................................................................................................ 5 3.2 AMBIENT COMMUNICATION FOR SENSE OF PRESENCE ...................................... 7 3.2.1 AMCOSOP System........................................................................................ 8 3.2.2 User Interface for Elderly ............................................................................. 9 3.2.3 Information Flow and Components ............................................................ 13 3.2.4 Secondary User Interface ........................................................................... 14 3.2.5 Implementation ........................................................................................... 14 3.2.6 Evaluation ................................................................................................... 18 3.3 SUMMARY ....................................................................................................... 27 4 POSITIONING SYSTEMS FOR AMBIENT ASSISTIVE ENVIRONMENTS 29 4.