Title :
An Ultralow-Power Wireless Camera Node: Development and Performance Analysis
Author :
Gasparini, Leonardo ; Manduchi, Roberto ; Gottardi, Massimo ; Petri, Dario
Author_Institution :
Dept. of Inf. Eng. & Comput. Sci., Univ. of Trent, Trent, Italy
Abstract :
This paper presents the design principles underlying the video nodes of long-lifetime wireless networks. The hardware and firmware architectures of the system are described in detail, along with the system-power-consumption model. A prototype is introduced to validate the proposed approach. The system mounts a Flash-based field-programmable gate array and a high-dynamic-range complementary metal-oxide-semiconductor custom vision sensor. Accurate power measurements show that the overall consumption is 4.2 mW at 3.3 V in the worst case, thus achieving an improvement of two orders of magnitude with respect to video nodes for similar applications recently proposed in the literature. Powered with a 2200-mAh 3.3-V battery, the system will exhibit a typical lifetime of about three months.
Keywords :
CMOS image sensors; field programmable gate arrays; low-power electronics; radio networks; video cameras; firmware architectures; flash-based field-programmable gate array; high-dynamic-range complementary metal-oxide-semiconductor custom vision sensor; long-lifetime wireless networks; power 4.2 mW; power measurements; system-power-consumption model; ultralow-power wireless camera node; video nodes; voltage 3.3 V; CMOS image sensors; Cameras; Field programmable gate arrays; Image processing; Power demand; Surveillance; Wireless networks; Complementary metal–oxide–semiconductor (CMOS) vision sensor; field-programmable gate array (FPGA); image processing; people counter; surveillance; ultralow-power node; wireless camera network (WCN);
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
DOI :
10.1109/TIM.2011.2147630
