DocumentCode :
24985
Title :
A CMOS Biologically Expansion/Contraction Motion Sensor and Its Implementation on Z-Motion Direction/Velocity Detection
Author :
Cheng-Ta Chiang ; Setiarini, Asih
Author_Institution :
Dept. of Electr. Eng., Nat. Chiayi Univ., Chiayi, Taiwan
Volume :
15
Issue :
4
fYear :
2015
fDate :
Apr-15
Firstpage :
2166
Lastpage :
2176
Abstract :
In this paper, a CMOS biologically expansion/contraction motion sensor and its implementation on Z-motion direction/velocity detection is newly proposed. The first innovation is that the proposed method is inspired from neural vision system of mammalians. The formation of image is based on the principle of biconvex lens geometry. By developing the proposed method, the proposed motion sensor can be real time to calculate the velocity of z-axis of an object as neural vision system of mammalians. Another innovation is that all analog processing circuits and light sensors are integrated robustly and compactly into a single chip. The proposed motion sensor consists of 80 pixels with a pixel size of 125 × 125 μm2. The fill factor is 86.2% and the total chip area is 4 × 4 mm2. The sensor array is implemented into eight axes, and total power consumption, including output digital buffers is 13.2 mW. Based on the device parameters of 0.35-μm 2P4M CMOS technology, all the functions and performance of the proposed expansion/contraction motion sensor and its implementation on Z-motion direction/velocity detection are successfully tested and proven through measurements. The detectable chip velocity of the proposed motion sensor is from 9 to 63 mm/s, and its corresponding Z-velocity is from 0.139 to 0.97 m/s. The illumination range is successfully tested from 1.52 to 121.2 lux. The velocity deviations of this motion sensor are 6.8% for ±X motion, 3.5% for ±Y motion, and 6% for ±Z motion, respectively. The proposed chip is suitable for 3-D motion applications, such as robot or car backward motion applications.
Keywords :
CMOS integrated circuits; analogue processing circuits; biosensors; lenses; motion measurement; visual perception; 2P4M CMOS technology; CMOS biologically contraction motion sensor; CMOS biologically expansion motion sensor; analog processing circuits; biconvex lens geometry; fill factor; image formation; light sensors; mammalians; neural vision system; output digital buffers; pixel size; power 13.2 mW; sensor array; single chip; size 0.35 mum; total chip area; z-motion direction detection; z-motion velocity detection; Arrays; CMOS integrated circuits; Lenses; Machine vision; Sensor systems; Simulation; BLG; Expansion/contraction; and BLG; expansion/contraction; motion sensor; vision chip;
fLanguage :
English
Journal_Title :
Sensors Journal, IEEE
Publisher :
ieee
ISSN :
1530-437X
Type :
jour
DOI :
10.1109/JSEN.2014.2366786
Filename :
6945374
Link To Document :
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