Capabilities Overview
Feature
____________________________________________________________________________________
Feature: I/O
Purpose: Capture of sensor and user data
Components / Capabilities:
Integrated:
- 3 Axis Accelerometer using Freescale MMA7361 1.5/6g Micropower MEMs Accelerometer into CPU A/D
- Option for 4g/12g drop in replacement upon request
- 3 coloured status LEDs
- Soft-power button – (Short press for Reset, hold for 10 seconds to power-down board)
- Tilt/vibration sensor – mimimal power sensing option which can also be used as an application input to trigger power-state transitions.
Expansion:
- Hirose ST60 series 18 position rugged mobile style external header for charging, programming and tethered sensor extensions (12 multi-purpose I/O connections).
- Hirose DF12 series 20 position internal expansion header for internal sensor daughter boards (14 multi-purpose I/O connections).
- Unregulated battery/dock voltage on expansion connectors for improved efficiency and option of high powered peripherals.
- JTAG test pads.
____________________________________________________________________________________
Feature: Processing
Purpose: Control operating state, provide best signal quality, operational alerts and messages
Components / Capabilities:
MSP430
- 10Kbyte RAM, 48Kbyte Flash
- Up to 8 MHz
- 2 DAC outputs
- 8 Channels of 12bit A/D
- Extremely low power during periods of inactivity
- Proven solution in medical sensing applications
____________________________________________________________________________________
Feature: Storage
Purpose: No loss of data while mobile, during network outages or while changing batteries
Components / Capabilities:
MicroSD Slot
- Up to 2GByte currently available
- SD Card with data-path MUX for full-speed host transfer when docked and soft-power control with dock detection over-ride.
- NAND Flash based, ~20mA read/write power
____________________________________________________________________________________
Feature: Communications
Purpose: High-reliability, Standards based mobility
Components / Capabilities:
802.15.4 Radio
- Shimmer Research SR7 (TI CC2420)
- Has received FCC, ETSI, IC approval
Class 2 Bluetooth Radio
- Roving Networks RN-42
- Soft-power control
- Has received FCC, ETSI, IC approval
____________________________________________________________________________________
Feature: Form Factor
Purpose: Wearable
Components / Capabilities:
- Minimum sensor volume in enclosure is 53mm x 32mm x 15mm.
- Modular 3-piece enclosure.
____________________________________________________________________________________
Feature: Operating Life and Power
Purpose: Long operating life, Easy maintenance and deployment
Components / Capabilities:
- Configure sample rate, number of channels, communication and storage for up to 1 week of continuous sensing.
- Deep sleep shelf life is >1 year per battery specification
- Integrated Li-ion battery charger
- Scaled battery voltage measurement
- Instantaneous current measurement
- Soft power button with automatic low-battery system shutdown
____________________________________________________________________________________