Underground parking information system(UPIS), which integrates wireless sensor network(WSN) technology, is proposed. Ultrasound sensors are used to monitor states of parking spaces. Data transmission system is an integration of WSN and mobile 3G network. In addition, CMesh, a wireless communication protocol based on TDMA, is proposed to accommodate the volatile wireless channels, increase the reliability of wireless communication, and prolong the lifetime of WSN in UPIS. The overall system framework, energy-aware routing, and TDMA scheduling of UPIS are presented and analyzed. Through the prototype experiment and actual implementation, we evaluate packet loss rate and energy consumption of the WSN system, which show that the system satisfies the requirements of application.
SUN Hao
,
CHEN Yong-Rui
,
XU Xu-Zhu
,
XU Ding-Xin
,
YI Wei-Dong
. Underground parking information system based on wireless sensor network[J]. Journal of University of Chinese Academy of Sciences, 2013
, 30(5)
: 664
-670
.
DOI: 10.7523/j.issn.2095-6134.2013.05.014
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