Standalone Intelligent Sensor System

The Standalone Intelligent Sensor (SIS) is an inexpensive build-it-yourself system that processes information from a variety of passive wireless sensors to create a timestamped log containing meaningful information and inferences about a person’s in-home activities. The SIS log can be securely accessed over the Internet, providing caregivers and concerned relatives a picture of how competently an elderly person living alone is performing the routine activities of daily life.

The initial release of SIS uses wireless proximity infrared (PIR) motion sensors and wireless door separation sensors to log movements of a person around and in/out of their home. Judicious placement of the PIR sensors provides a compact picture of a person’s activities via the natural association of those activities with areas of the home; e.g. bedroom for sleeping and dressing, bathroom for personal hygiene, kitchen for food preparation and living room for relaxation and socialization.

The SIS consists of up to 20 inexpensive wireless sensors and a small hub device containing wireless receivers, an advanced microcontroller, and WiFi connectivity. The current release of SIS requires WiFi for connection to the Internet; however, a 3G wireless version is anticipated in the near future. SIS also contains client software that can communicate with the in-home hub over the Internet, via a free cloud service from particle.io. The client software is written in Javascript and can be hosted on any device that supports a Javascript enabled web browser (desktop, laptop, tablet, smart phone, etc.). Communication between the SIS Hub, the cloud and a client is authenticated and encrypted to ensure privacy and security of the data.

SIS is completely open source and all documentation and design files are provided at: https://github.com/SISProject

We are interested in expanding SIS beyond the current application to make it into a true open source collaborative platform.  Contact us with your comments, thoughts and ideas for additional applications at:  SISProject@shrimpware.com.