General proportional integral observer (GPIO) - based disturbance compensation for minimum variance time synchronization

Jia, Zhian; Dai, Xuewu; Cui, Dongliang; Qin, Fei; Zhang, Dong; Hu, Yuxiang

doi:10.1016/j.jfranklin.2023.03.023

Cited by 4 publications

(1 citation statement)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Nowadays, with the development of the wireless communication technologies, wireless sensor networks (WSNs) are increasingly used in fields such as smart cities [1], industrial automation and cooperation of multiple mobile robots [2] and so on. And most of these WSNs devices have clock synchronization needs [3][4][5]. Clock synchronization is the process of reducing and maintaining the time differences (refer to as offsets), among a group of distributed nodes to zero.…”

Section: Introductionmentioning

confidence: 99%

Asynchronous broadcast‐based event‐triggered control for discrete‐time clock synchronization

Jia

Dai

Cui

et al. 2023

IET Control Theory & Appl

Self Cite

View full text Add to dashboard Cite

Precise timing plays a key role in the time‐sensitive industrial Internet of Things (IIoT). However, precise time synchronization requires more frequent packet exchange, which consumes more communication bandwidth and energy. This is a particular challenge in battery‐powered wireless nodes, and low communication costs have become an important factor in clock synchronization. To address the challenge of achieving low communication cost clock synchronization in distributed wireless sensor networks, this paper proposes an improved event‐triggered control and synchronization scheme with a novel asynchronous broadcast packet exchange protocol. Unlike the traditional event‐triggered control scheme which is based on synchronous polling packet exchange, this proposed asynchronous broadcast packet exchange is more communication efficient and requires fewer number of packet exchanges. And it is worth noting that the proposed algorithm in this paper is a distributed algorithm and does not require real‐time acquisition of information from neighbouring nodes. Finally, a numerical example is given to illustrate the effectiveness of the proposed event‐triggered control strategy. The efficiency and precision of the proposed clock synchronization method is evaluated by intensive simulations, which show that the number of packet exchange is reduced by 60% for a moderate IIoT network and is particularly useful for large scale network.

show abstract