Meteorological Phenomena Measurement System Using the Wireless Network

2005 ◽  
pp. 861-865
Author(s):  
Kyung-Bae Chang ◽  
Il-Joo Shim ◽  
Seung-Woo Shin ◽  
Gwi-Tae Park
Keyword(s):  
Wireless Network ◽  
Measurement System

Research and Development of Wireless Network Temperature Measurement System

2012 ◽  
Vol 433-440 ◽  
pp. 6447-6452
Author(s):  
Yi Wu Zhou
Keyword(s):  
Research And Development ◽  
Temperature Measurement ◽  
Wireless Network ◽  
Measurement System ◽  
Reference Value ◽  
Industrial Applications ◽  
Wireless Sensor ◽  
Functional Design ◽  
Zigbee Protocol ◽  
Temperature Measurement System

This paper introduces the research and development of the temperature measurement system using wireless network based on ZigBee protocol. The system consists of network coordinator and a number of nodes. The structural and functional design for the nodes highlights the characteristics of industrial applications, and is of a certain reference value on research and development of industrial wireless sensor systems.

De-Noise of the High Frequency Corona Current with Wavelet Analysis Method

2013 ◽  
Vol 385-386 ◽  
pp. 1394-1397
Author(s):  
Lei Zhu ◽  
Jun Zhu ◽  
Fang Cheng Lü ◽  
Yun Peng Liu ◽  
Qing Zhong Geng
Keyword(s):  
Wavelet Analysis ◽  
Wireless Network ◽  
Frequency Band ◽  
Measurement System ◽  
High Frequency ◽  
Current Signal ◽  
Analysis Method ◽  
Wide Frequency Band ◽  
Corona Current ◽  
Current Characteristics

In order to analyze wide frequency band corona current characteristics of the UHV bundled conductors, a corona current measurement system is developed. The corona current signal is transmitted to the lower computer through the wireless network. And the current signal collected in this way is safe and reliable. The de-noise method with wavelet analysis is introduced and compared with some common used methods. The result of the de-noising analysis of the wide frequency band corona currents of bundled conductors in the corona cage shows that the wavelet analysis method could be used to de-noise high frequency corona current in the corona cage, and the de-noising effect is apparent.

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