Summary
International Symposium on Antennas and Propagation
2014
Session Number:TH3A
Session:
Number:TH3A_01
Sensor Connectivity Enhancement using Diversity Antennas in Cold Chain Logistic Applications
Bo-Ren Hsiao, Hsin-Hsiung Chen, Wen-Jiao Liao, Troy-Chi Chiu, Chin-Chung Nien,
pp.-
Publication Date:2014/12/2
Online ISSN:2188-5079
Summary:
A renovated delivery approach is proposed for cold chain logistic services to reduce operation cost. Deliveries are conducted using ordinary vehicles without refrigeration equipment. To ensure that perishable goods arriving destinations in good conditions, insulated containers are used to hold the shipment and the temperature data are monitored by wireless temperature sensors. Due to the variations in the propagation environment as well as attenuations in lossy frozen goods, a reader antenna system composed of multiple antennas of different polarizations and locations is proposed to mitigate the multipath fading issue. Rigorous simulations are performed to validate the improvement in reader coverage with this diversity antenna scheme. An optimum antenna displacement scheme is proposed for the propagation environment in a pickup truck using this method.