M. Krairiksh, J. Varith, A. Kanjanavapastit, C. Phong- cha-roenpanich, A. Thanachayanont, P. Sirisuk and M. Chong-cheawchamnan, “Microwave Sensor for Durian Inspection,” Proceedings of 2009 IEEE International Con- ference on An-tennas, Propagation and Systems (INAS 2009), Johor, Dec. 2009, pp.221-1-221-4.

has been cited by the following article:

• TITLE: Wireless Sensor Network for Monitoring Maturity Stage of Fruit

  AUTHORS: M. Krairiksh, J. Varith, A. Kanjanavapastit

  KEYWORDS: Fruit Sensor, Maturity Stage Monitoring, Wireless Sensor Network, Pre-Harvest Control

  JOURNAL NAME: Wireless Sensor Network, Vol.3 No.9, September 19, 2011

  ABSTRACT: In this letter, we present a wireless sensor network for monitoring the maturity stage of fruit. A dual-polari- zation coupled patch sensor, which is robust to environmental changes, was designed to operate at 2.45 GHz. It was attached to a Durian fruit for a period of days to measure the magnitude of mutual coupling corresponding mainly to the starch concentration of its pulp. Signal was transmitted from a sensor node, via tree nodes, to a master node that displays the variations occurring in the period. The maximum mutual coupling occurred at the maturity stage of 60% whereas the minimum occurred at 70%. These results demonstrate that this wireless sensor network can enable fruit growers to harvest their Durians at an appropriate time, providing a reliable quality control for export.