Open AccessWireless strain synchronization acquisition method based on Kalman Filter
Author(s) -
Yu Tang,
Yawen Dai
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1754/1/012064
Subject(s) - timestamp , timer , computer science , kalman filter , real time computing , node (physics) , clock synchronization , wireless sensor network , synchronization (alternating current) , self clocking signal , clock drift , sensor node , key distribution in wireless sensor networks , wireless , computer network , wireless network , clock skew , engineering , channel (broadcasting) , telecommunications , clock signal , artificial intelligence , structural engineering , jitter
For distributed wireless sensor networks, the time synchronization mechanism is the core part and the key to realize the coordination and processing of tasks between nodes. In this paper, an algorithm based on kalman filter is developed the wireless strain of synchronous acquisition system, through the coordinator fixed time interval by a synchronous message, when each node receives the synchronous message to mark its timer timestamp clock information of nodes, then the node according to the records of the clock information periodically call kalman filtering algorithm is used to estimate the next cycle of its own real clock and standard clock deviation coordinator, in the next cycle, real-time compensation is made by adjusting the overflow count value of node timer to achieve high synchronization accuracy. The sensor nodes in the system have high strain sampling accuracy and meet the requirements of general engineering applications.