Sensors Enabled by recent advances in mems technology Integrated Wireless Battery CPU Transceiver Limited in Energy Wireless Computation Transceiver ° Storage Transmission range Memory Bandwidth Sensing Hardware
Sensors • Enabled by recent advances in MEMS technology • Integrated Wireless Transceiver • Limited in • Energy • Computation • Storage • Transmission range • Bandwidth Battery Memory CPU Sensing Hardware Wireless Transceiver
Sensors M odern sensor nodes 1 32nds UC Berkeley: COTS Dust UC Berkeley: Smart Dust UC Berkeley: COTS Dust UCLA: WINS Rockwell: WINS JPL: Sensor Webs
Sensors
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Sensor Nodes
Sensors(contd The overall architecture of a sensor node consists of The sensor node processing subsystem running on sensor node main CPU The sensor subsystem and The communication subsystem The processor and radio board includes TI MSP430 microcontroller with 10kB RAM 16-bit RISC with 48K Program Flash IEEE 802. 15. 4 compliant radio at 250 Mbps 1MB external data flasl Runs Tinyos 1.1.10 or higher Two aa batteries or USB Crossbow mote 1.8 mA active); 5.1uA(sleep) TPR2400CA-TelosB
Sensors (contd.) • The overall architecture of a sensor node consists of: • The sensor node processing subsystem running on sensor node main CPU • The sensor subsystem and • The communication subsystem • The processor and radio board includes: • TI MSP430 microcontroller with 10kB RAM • 16-bit RISC with 48K Program Flash • IEEE 802.15.4 compliant radio at 250 Mbps • 1MB external data flash • Runs TinyOS 1.1.10 or higher • Two AA batteries or USB • 1.8 mA (active); 5.1uA (sleep) Crossbow Mote TPR2400CA-TelosB
Overall architecture of a sensor node Application Layer、 ensor Communication SubSystem Sensor node cpu Network Layer Slow serial link MAC Layer Physical layer Radio board Forward Packet path Wireless channe l
Overall Architecture of a Sensor Node Application Layer Network Layer MAC Layer Physical Layer Communication SubSystem Wireless Channel Slow Serial Link Sensor Sensor Node CPU Radio Board Forward Packet Path