Eco Wireless Sensor Node

Background: Many wearable wireless sensor systems have similar looking architectures. To reduce unnecessary redundant design effort, modular, expandable platforms have been proposed. They include features such as snap-on connectors to make the interface pins accessible. End users can then customize the platform by simply swapping in another board with a different sensing device or system performance. Unfortunately, expandable platforms today are still relatively bulky for many body-area network applications. Technology: University researchers have developed a very small, wireless, MEMS-based sensor that consists of minute Eco nodes that measure three-axial acceleration, and measure resistance value as voltage. Now in its third iteration, the sensor utilizes a chip antenna and rechargeable batteries. It also has an expansion interface that allows it to be connected to external sensors.

The sensor collects data from the on-board accelerometer, light sensor, temperature sensor, or other devices connected to its expansion interface, which transmits the data over a 2.4 GHz radio interface to a computer. It can also receive commands and other data from the host computer. The host computer requires a base station that converts serial interface to the compatible 2.4 GHz signal to work with the Eco nodes. Application: Potential applications of the sensors include motion sensing of humans (e.g. pre-term infants, hyperactive children, elderly), and animals. Other potential applications include placement in devices to detect soil movement, and placement into consumer products to collect buying patterns for market researchers.

Type of Offer: Licensing



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