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Performance Measuring Test Results of 920MHz Band Wireless Sensor Network in Buried Condition

Authors:
Nariya Iwaki
Nagateru Iwasawa
Satoko Ryuo

Keywords: Wireless Sensor Network; 920MHz; Railway; Buried Condition.

Abstract:
Increasing number of aging structures and damage caused by natural disasters are major issues in railways. It is difficult to instantly detect the deterioration and damage of structures in normal inspection cycles, hence, studies of the condition monitoring system for railway facilities have been developed to grasp these conditions frequently. Most of condition monitoring systems for railway structures in recent years consist of Wireless Sensor Networks (WSN). To design a WSN, it is necessary to grasp the characteristics of the frequency for the railway environment. In our research, the 920 MHz band of radio wave frequency, which was released as Industry Science and Medical (ISM) band since 2012 in Japan, was focused. Also, as an example of condition monitoring for railway structures, the WSN for railway embankment was selected. We considered the case where the sensor was buried underground and the case of rain as factors affecting wireless transmission and confirmed that the signal strength of 920 MHz radio waves were attenuated in these cases.

Pages: 47 to 52

Copyright: Copyright (c) IARIA, 2019

Publication date: November 24, 2019

Published in: conference

ISSN: 2163-9027

ISBN: 978-1-61208-753-5

Location: Valencia, Spain

Dates: from November 24, 2019 to November 28, 2019