Title :
Research on Time Synchronization of WIA-PA Industrial Wireless Networks
Author :
He Nan ; Liu Feng
Author_Institution :
Coll. of Comput. & Inf. Sci., Southwest Univ., Chongqing, China
Abstract :
Firstly, the article introduces the WIA-PA wireless network which is under study at present and can be used for industrial control. Aiming to FTSP algorithm can be used correctly in this network, combined with the unique TDMA media access control method of this network, this article takes a way building the logic synchronization tree to improve the precision of multi-hop FTSP clock synchronization. Then it use Bayesian estimation to improve the accuracy of clock synchronization. The experiment results show that after the using of Bayesian estimation, the time synchronization precision of WIA-PA network improve clearly.
Keywords :
access control; industrial control; synchronisation; time division multiple access; wireless sensor networks; FTSP synchronization; WIA-PA; clock synchronization; industrial control; logic synchronization tree; media access control; process automation; time division multiple access; time synchronization; wireless networks for industrial automation; Clocks; Frequency synchronization; Industrial control; Intelligent sensors; Sensor phenomena and characterization; Spread spectrum communication; Standards development; Time division multiple access; Wireless networks; Wireless sensor networks;
Conference_Titel :
Computational Intelligence and Software Engineering, 2009. CiSE 2009. International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-4507-3
Electronic_ISBN :
978-1-4244-4507-3
DOI :
10.1109/CISE.2009.5363213
