Shimmer

Shimmer Overview

Shimmer - Sensing Health with Intelligence, Modularity, Mobility, and Experimental Reusability

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Shimmer with sensor boards broken out.

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Shimmer mote in case.

Shimmer is a small wireless sensor platform designed to support wearable applications. It provides an extremely extensible platform for real-time kinematic motion and physiological sensing. It features a large storage capacity and low-power standards based wireless communication technologies which facilitate wearable or wireless sensing in both connected and disconnected modes.

Shimmer provides a compact platform for long-term wearable or wireless sensing using proven system building blocks. The design is realized using conventional design and assembly technology to ensure repeatability and economy. Shimmer was designed to help create an ecosystem of health-related technologies that provide a highly mobile capability and can easily integrate and interact with existing technology and infrastructure. The platform has now expanded to include a range of applications from Healtcare and Sports Science, to Ambient and Environmental sensing solutions.

Links

• Shimmer Research - Official website for the Shimmer platform
• Shimmer Youtube Channel - Official Shimmer Research Youtube Channel
• Mercury - A wearable sensor platform for high-resolution motion analysis
• Tril Center - Ireland
• BioMOBIUS site
• ENGAGED Study- Technology-supported approach to DPP (Diabetes Prevention Program)

Platform Features

• Compact Form Factor, Light & Wearable (Weight: 15 Grams, Volume: 50mm x 25mm x 12.5mm)
• Support for Bluetooth and 802.15.4 wireless communications (RN-42, CC2420)
• Offline Data Capture - Micro SD Card Storage - 2 Gigabytes
• Open Platform, driven by TinyOS
• Internal and external connectors for expansion
• Includes simple serial command interface for Bluetooth
• Integrated TCP/IP stack for 802.15.4
• Integrated 3-axis MEMs accelerometer with selectable range
• Integrated tilt/vibration sensor
• Integrated Li-ion battery mgmt.
• Supported by BioMOBIUS graphical software platform
• Compatible with Labview with a DSC Module available

Available as add-on extension boards and accessories

• Kinematics sensing (3 axis Gyroscope)
• Advanced Kinematics sensing (3 axis Gyroscope + 3 axis magnetic sensing)
• 3 Lead Micro-power electrocardiograph (ECG)

Shimmer with ECG sensor board.

• One channel electromyogram (EMG)
• One channel Galvanic Skin Response (GSR)
• Passive Infra Red (PIR)
• Breakout board to thru-holes for rapid prototyping
• Span Platform - provides a USB plug-in 802.15.4 adapter
• USB programming/charging dock
• 6-Shimmer Charger
• ECG/EMG Leads
• Wearable Straps

Applications

The Shimmer platform is being utilized for a variety of applications. These include:

• Limb motion analysis of Parkinson's Disease and stroke patients - see Mercury and CodeBlue for details
• Gait Analysis
• Sleep Studies
• Cognitive Awareness
• Activities of Daily Living Studies
• Vital Signs Monitoring
• Chronic Disease Management

Sample Shimmer applications for data collection can be found in the TinyOS open source codebase; see the section below on TinyOS for more details.

Availability

• Shimmers are now commercially available through Shimmer Research Ltd. Please email "info at shimmer-research dot com" for further information.
• Shimmer Research

TinyOS Support

Shimmer platforms are fully supported under both versions of TinyOS. In tinyos-1.x, the codebase is found under contrib/handhelds; in tinyos-2.x, platform support is in the main tree, with example platform code in tinyos-2.x-contrib/shimmer. In both cases, example data-collection code can be found under each tree's respective apps directory, with various other code snippets sprinked throughout the adjacent swtest directory. For a more complete set of documentation, visit http://shimmer-research/r-d/software and http://shimmer-research/