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Interaction in Pervasive Computing Settings using Bluetooth-enabled Active tags and passive RFID Technology tegether with Mobile Phones PerCom 2003 F. Siegemund and C. Florkemeier Outline Introduction Interaction with Smart Objects classification 3 Scenarios Technical Realization

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Interaction in Pervasive Computing Settings using Bluetooth-enabled Active tags and passive RFID Technology tegether with Mobile Phones PerCom 2003F. Siegemund and C. Florkemeier

outline
Outline
  • Introduction
  • Interaction with Smart Objects
    • classification
  • 3 Scenarios
  • Technical Realization
  • Conclusions
introduction
Introduction
  • What equipments?
    • Passive RFID
    • Unobtrusive Bluetooth-enabled active tags
    • Mobile phones
  • Smart objects:
    • objects with RFID tags
    • objects that can interact with human
  • Goal: how human interact with these devices and smart objects
interaction with smart objects
Interaction with Smart Objects
  • initiated by users:
    • user has to have the intention
    • user has to address the smart object
    • explicit:
      • push bottom, voice control, etc.
    • implicit:
      • a person approaching an automatic door, a movement in the range of an automatic light switch, a specific medicine being removed from a medicine cabinet.
  • Initiated by smart objects:
    • predefined rules:
      • a simple notification service: whom to contact under what conditions
    • implicit:
      • a simple notification service: a smart object would try to find who is in its vicinity
design objectives
Design Objectives
  • An egg carton to represent a fragile object.
  • Augmented function:
    • to detect whenever it is dropped
    • to detect whenever it is not stored within the appropriate temperature
  • goal:
    • monitor the object unobtrusively
    • associate the appropriate contact person without explicit manual pre-configuration
devices
Devices
  • BT node
  • sensor board:
    • temperature sensor
    • acceleration sensor
  • Context-aware:
    • sensing of a context change (e.g., broken eggs) will trigger the alarm to the user via SMS (short messages)
    • The SMS also contains a sequence of commands that allow the user to interact with the smart object. (See next page.)
which person phone number to contact
Which Person (phone number) to Contact?
  • User’s GSM phone is attached with a RFID tag
    • which can be read by an RFID reader in the vicinity of the smart object
    • Inside the RFID tag, it describes how the user can be contacted (either a phone number, or a PDA).
      • This information is broadcast to the BT node in the egg cartons.
scenario 2 remote interaction with smart objects and locations
Scenario 2: Remote Interaction with Smart Objects and Locations
  • Each smart object is associated with a phone number.
  • Users can use SMS to remotely interact with these smart objects.
  • Example:
    • querying a smart office (next page)
challenges
Challenges
  • Users do not want to memorize all the phone numbers.
  • Users do not want to install all these SMS templates.
  • Solutions:
    • phone books and SMS templates are predefined as interaction stubs in smart objects.
    • Through BT, an interaction stub is downloaded to a mobile phone depending on how long and how often he/she stays in that smart office.
scenario 3 smart medicine cabinet
Scenario 3: Smart Medicine Cabinet
  • goal:
    • reminding people to take some medicine
    • check availability of some medicine
    • out-of-date drugs, product recalls
  • Smart cabinet:
    • RFID tags (on drugs), RFID reader, and an active BT node (see next page)
design details
Design Details
  • The RFID reader checks information of medicine and user’s prescription.
  • Drug usage is determined by appearance/disappearance of a tag and approaching of a user (with BT-enabled GSM phone).
    • This information is sent to a remote virtual counterpart, which contains the user’s prescription.
    • Through GSM, when the user is nearby.
  • Alarm to take a medication:
    • installed inside the user’s mobile phone, which will check with the virtual counterpart.
    • see next page.
conclusions
Conclusions
  • Smart objects
  • How to reduce interactions with smart objects, without losing necessary interactions?
    • invisible pre-selection
  • 3 interesting scenarios
  • Homework:
    • technical realization?
    • Can you come up with more interesting scenarios of smart objects?