Title :
An Ultra Low-Power Body Sensor Network Control Processor with Centralized Node Control
Author :
Choi, Sungdae ; Sohn, Kyomin ; Kim, Hyejung ; Kim, Jooyoung ; Song, Seong-Jun ; Cho, Namjun ; Yoo, Jerald ; Yoo, Hoi-Jun
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Korea Adv. Inst. of Sci. & Technol., Daejon
Abstract :
A body sensor network (BSN) system needs ultra-low power consumption to provide a user-friendly small form-factor. This paper presents the dual-mode system architecture to manage 254 nodes in the BSN with low-power consumption. Its instantaneous program execution with external program counter scheme prohibits unnecessary RISC operation and wakes up the RISC from its turn-off state just in 3-clock cycles, the same as reset sequence. The TCAM-based periodic event generator manages 254 periods of each network node with low energy consumption. The implemented test chip consumes 24.2muW average power for 254 nodes management and 4.2-MIPS performance
Keywords :
biomedical transducers; medical computing; microprocessor chips; patient diagnosis; patient monitoring; reduced instruction set computing; wireless sensor networks; 24.2 muW; RISC; TCAM periodic event generator; body sensor network control processor; centralized node control; dual-mode system architecture; external program counter; instantaneous program execution; low-power consumption; Body sensor networks; Centralized control; Control systems; Energy consumption; Energy management; Humans; Medical services; Monitoring; Power system management; Process control;
Conference_Titel :
System-on-Chip, 2006. International Symposium on
Conference_Location :
Tampere
Print_ISBN :
1-4244-0621-8
Electronic_ISBN :
1-4244-0622-6
DOI :
10.1109/ISSOC.2006.322003
