A ZigBee-Based Wireless Sensor Network Node for Ultraviolet Detection of Flame

Author

Cheong, Pedro ; Chang, Ka-Fai ; Lai, Ying-Hoi ; Ho, Sut-Kam ; Sou, Iam-Keong ; Tam, Kam-Weng

Author_Institution

Fac. of Sci. & Technol., Univ. of Macau, Macau, China

Volume

58

Issue

11

fYear

2011

Firstpage

5271

Lastpage

5277

Abstract

This paper describes a ZigBee-based wireless sensor network node for the ultraviolet (UV) detection of flame. The sensor node is composed of a ZnSSe UV photodetector, a current-sensitive front end including a high-gain current-to-voltage amplifier with 120 dB and a logarithm converter, and a transceiver operated at a 2.4-GHz industrial, scientific, and medical band. A passive photodetector is designed to have a cutoff at 360 nm and convert the UV emission of flame into picoamperes. Including mixed signal processing and ZigBee transmission, the speed of flame detection is as fast as 70 ms. The sensor node consumes only an average of 2.3 mW from a 3.3-V supply. The performance of a prototype sensor node was verified when the luminous flame was imaged onto the sensor node with different angles ranging from -30° to 30° and distances of 0.1, 0.2, and 0.3 m enabling effective fire safety applications.

Keywords

Zigbee; amplifiers; flames; photodetectors; ultraviolet detectors; wireless sensor networks; UV photodetector; ZigBee-based wireless sensor network node; distance 0.1 m; distance 0.2 m; distance 0.3 m; flame; frequency 2.4 GHz; gain 120 dB; high-gain current-to-voltage amplifier; logarithm converter; mixed signal processing; power 2.3 mW; size 360 nm; time 70 ms; ultraviolet detection; voltage 3.3 V; Detectors; Fires; Photodetectors; Wireless sensor networks; Zigbee; Flame analysis; ZigBee; ultraviolet (UV) detector; wireless sensor network (WSN);

fLanguage

English

Journal_Title

Industrial Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0278-0046

Type

jour

DOI

10.1109/TIE.2011.2119455

Filename

5720305