Title :
Electronic nose module with system on chip
Author :
Jang, Eu-Ttum ; Chung, Wan-Young
Author_Institution :
Sch. of Internet Eng., Dongseo Univ., Busan, South Korea
Abstract :
An electronic nose module with a system on chip (SoC) was developed to be used in a gas discrimination system for limited kinds of gas. An array of 4 metal oxide gas sensors with different selectivity patterns was used in order to measure the gases. A BP (Back Propagation) algorithm was designed and implemented on a CPLD of two hundred thousand gates by using the VHDL language for processing input signals from 4 kinds of gas sensors. This module successfully discriminated 4 kinds of gases and displayed the results on an LCD or LED display. The developed module could be used for various applications in the field of food process control and alcohol judgment.
Keywords :
backpropagation; computerised instrumentation; food processing industry; gas sensors; neural chips; process control; programmable logic devices; system-on-chip; CPLD; SoC; VHDL; alcohol judgment; backpropagation algorithm; digital multilayer neural network; electronic nose module; food process control; gas discrimination system; metal oxide gas sensors; sigmoid function; system on chip; Algorithm design and analysis; Electronic noses; Gas detectors; Gases; Light emitting diodes; Semiconductor device measurement; Sensor arrays; Signal design; Signal processing; System-on-a-chip;
Conference_Titel :
Sensors, 2002. Proceedings of IEEE
Print_ISBN :
0-7803-7454-1
DOI :
10.1109/ICSENS.2002.1037312
