TECHNOLOGY
Ultra-Wide Band
UWB is an impulse radio that operates under the noise-range of most of the other wireless technologies.
The DWM100 is a UWB based communication module, which extends the stack on top of the 802.15.4a PHY/MAC layers.
The two major advantages of using UWB are - resistance to multi-path noise and low-power communication.
Since the data rate that we use is relatively low (110 kbps), the net packet loss due to physical obstacles is low.
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DWM1000
DECAWAVE UWB MODULE
DWM1000 is an IEEE802.15.4-2011 UWB compliant wireless transceiver module based on DecaWave’s DW1000 IC.  DWM1000 enables the location of objects in real time location systems (RTLS) to a precision of 10 cm indoors, high data rate communications, up to 6.8 Mb/s, and has excellent communications range of up to 300 m thanks to coherent receiver techniques.
DecaWave Module DWM1000 is optimised for unrivalled indoor precision location and data communications for Real Time Location Systems (RTLS) and Wireless Sensor Networks (WSN). It operates across a wide variety of markets, including ePOS and retail, automotive, agriculture, building control and automation, factory automation, healthcare, safety and security, warehousing and logistics and a range of others.
Sensors
We propose to use 3 sensors in our prototype. As the system is supposed to be deployed in a home, we are most interested in sensors which measure and report ambient conditions inside the house. We have 3 sensors interfaced viz. light, temperature and microphone.
Actuators
Once interfaced with sensors, the system has enough knowledge of the ambient conditions in the home to work on. We have interfaced 2 actuators which will be used by the system to change the ambient conditions. The actuators used in this project include a servo motor (fan) and LED matrix (dimmer light). The fan is responsible to try and cool the room whereas the LED matrix is responsible to maintain a minimum degree of brightness in the room.
