Sensors
From Capsil Wiki
Contents |
Overview
A key capability of any assisted living technology system is the ability to sense. This can take the form of direct measurement of biometric parameters e.g. ECG (electro cardiograph) or indirectly through tracking a person's interaction with their physical environment e.g. movement using accelerometers. Research in recent years has presented the concept of the body sensor network BSN which individual sensors connected together normally via wireless network such as 802.15.4 are used to deliver a comprehensive view of a person's state of wellbeing. The majority of wireless sensor platforms share a common set of system components:
- Microcontroller - Provides the computational capabilities to the platform.
- Communications - Provides low power wireless communications
- Sensor interfaces - hardware interfaces to external sensor boards
- Memory - External memory e.g. mirco SD card
- Power Supply - e.g. Lithium ion battery.
- Sensing e.g. acceleration
- Development Environments
Key Features
Ren et al described the key features of WBSN's for medical applications as follows:
| Reliability | Biocompatibility |
|---|---|
| Portability | Privacy and security |
| Light weight protocols | Retrievability |
| Energy aware communication | Prioritized traffic |
| RF radiation safety |
Sensor Nodes
| Academic | Commercial |
|---|---|
Design Considerations
- See CAPSIL Section on Design Aspects of BSNs
- See CAPSIL Section on BSN Architectures
- See CAPSIL Section on BSN Operating Systems and Development
Pilot Activity
- See CAPSIL Section on International Pilot Activity
- Back to Body Sensor Networks Page
- Back to Main Page
