DocumentCode :
3230121
Title :
1-cc computer using UWB-IR for wireless sensor network
Author :
Nakagawa, Tatsuo ; Miyazaki, Masayuki ; Ono, Goichi ; Fujiwara, Ryosuke ; Norimatsu, Takayasu ; Terada, Takahide ; Maeki, Akira ; Ogata, Yuji ; Kobayashi, Shinsuke ; Koshizuka, Noboru ; Sakamura, Ken
Author_Institution :
Hitachi Ltd., Tokyo
fYear :
2008
fDate :
21-24 March 2008
Firstpage :
392
Lastpage :
397
Abstract :
An ultra-small, high-data-rate, low-power 1-cc computer (OCCC) with an UWB-IR (ultra-wideband impulse-radio) transceiver was developed for a wireless sensor network. Thanks to bear-chip implementation and a flexible printed circuit board, the size of the computer is only 1 cm3. To achieve 10-Mbps data rate, a middle-class 32-bit microcontroller, which has both a bus interface and a USB 2.0 controller, was selected. Low-power techniques, such as transition of microcontroller status to standby mode by using an external real-time clock during wait times, power shutdown of halted circuits, and detailed control of UWB-IR transceiver status, are applied. The effect of these low-power techniques is verified by measuring the time history of current consumption of the OCCC. It was confirmed that the OCCC can provide wireless communication at a transmission rate of 258 kbps over a distance of 30 m.
Keywords :
low-power electronics; microcontrollers; transceivers; ultra wideband communication; wireless sensor networks; 32-bit microcontroller; USB 2.0 controller; UWB-IR transceiver; bit rate 10 Mbit/s; bit rate 258 kbit/s; bus interface; distance 30 m; external real-time clock; low-power 1-cc computer; low-power techniques; ultra-wideband impulse-radio transceiver; wireless communication; wireless sensor network; word length 32 bit; Clocks; Communication system control; Computer networks; Current measurement; Flexible printed circuits; Microcontrollers; Transceivers; Ultra wideband technology; Universal Serial Bus; Wireless sensor networks;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Design Automation Conference, 2008. ASPDAC 2008. Asia and South Pacific
Conference_Location :
Seoul
Print_ISBN :
978-1-4244-1921-0
Electronic_ISBN :
978-1-4244-1922-7
Type :
conf
DOI :
10.1109/ASPDAC.2008.4483982
Filename :
4483982
Link To Document :
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