WSNs hierarchical time synchronization algorithm adapted to grid fault detection in mine

YAN Yuping; HU Qingsong; HAN Lina; ZHANG Shen

doi:10.13272/j.issn.1671-251x.2015.07.017

Volume 41 Issue 7

Turn off MathJax

Article Contents

Article Navigation > Journal of Mine Automation > 2015 > 41(7): 72-77

YAN Yuping, HU Qingsong, HAN Lina, et al. WSNs hierarchical time synchronization algorithm adapted to grid fault detection in mine[J]. Industry and Mine Automation, 2015, 41(7): 72-77. doi: 10.13272/j.issn.1671-251x.2015.07.017

Citation:

YAN Yuping, HU Qingsong, HAN Lina, et al. WSNs hierarchical time synchronization algorithm adapted to grid fault detection in mine[J]. Industry and Mine Automation, 2015, 41(7): 72-77. doi: 10.13272/j.issn.1671-251x.2015.07.017

Citation:

PDF( 879 KB)

WSNs hierarchical time synchronization algorithm adapted to grid fault detection in mine

doi: 10.13272/j.issn.1671-251x.2015.07.017

YAN Yuping^{1, 2, 3},
HU Qingsong^{2, 3},
HAN Lina^{1, 2, 3},
ZHANG Shen^{2, 3}

1.
School of Information and Electrical Engineering, China University of Mining and Technology, Xuzhou 221008, China
2.
IoT (Perception Mine) Research Center, China University of Mining and Technology,

Publish Date: 2015-07-10

Abstract

Abstract

Combining advantages of classical time synchronization algorithm TPSN and RBS, a new energy-efficient and high-accuracy algorithm RBTP was proposed. The algorithm utilizes character of broadcast in wireless communication and adopts the maximum likelihood estimation and the least square algorithm to calculate clock offset and clock skew, then uses the results to compensate the clock. The simulation results show that RBTP algorithm reduces energy consumption compared with TPSN and RBS algorithm, improves synchronization precision, and it can meet the needs of underground grid fault location system for time synchronization.
- wireless sensor networks,
- time synchronization,
- maximum likelihood estimate,
- least square algorithm