Mobile and Ubiquitous Computing

• Overview• Attributes• Discussion

• Overview• Attributes• Discussion

• Overview

- Mobile Computing: Defined by physical movement of a connected, “smart”, device.

- Ubiquitous Computing: Defined by integration of computational devices into everyday objects and environments.

• Overview

- Volatility

The nature of distributed partially mobile systems is changeable and therefore volatile.

- Issues: The constantly changing users and devices demands a high level of adaptivity and standardized communication from the network.

• Overview- Volatile system characteristics:

- Smart spaces

- Device models

- Volatile connectivity

- Sponatenous interoperation

• Overview• Attributes• Discussion

• Attributes

• Attributes

- Association

Physically driven and location based.

Subject to perpetual change. - Two main issues: Scale and Scope.

Handled by Discovery services

• Attributes

- Interoperation

How to best communicate between distributed devices?

- Data-oriented programming: Focused on common interfaces such as HTTP as opposed to object-oriented programming.

• Attributes

- Sensing and awareness

A wide range of sensors are interconnected and forward data to control points.

- Issues: Energy conversation vs data forwarding, quality vs quantity.

Wireless sensor networks

Examples of wireless sensor network: Environmental measurement systems

Forest fire detection, Greenhouse gas monitoring, Earthquake detection.

Related system: GPS - network

• Overview• Attributes• Discussion

• Discussion

The house of the future, 1953, Mark Ammerson

High expectations?

From Distributed systems: concept and design:

“...if users carry tags such as RFID tags (for example, ones embedded in their clothes so that their smart washing machines can automatically choose an appropriate washing cycle)...”

“Similarly, a room could adapt the air conditioning and lighting settings according to the recorded preferences of the person within it.”

Questions?