Development of an SMT-based SHM device and optimisation of vibration data transmission packets

Abstract

This article presents the development of a Structural Health Monitoring (SHM) device based on Surface Mount Technology (SMT) with the aim of improving system stability, compactness, and practical applicability. The device integrates an accelerometer sensor, a microcontroller, and a wireless communication module, enabling the acquisition and transmission of structural vibration data to a central station for structural monitoring and condition analysis. Considering the characteristics of vibration data and the constraints of low-power wireless communication, this study focuses on investigating and optimising the data packet structure, particularly the relationship between the number of measurement samples per packet, the number of transmitted packets, and transmission reliability. Experimental investigations were conducted under multiple sampling configurations to evaluate the impact of different data packetisation strategies on transmission performance and measurement data integrity. The results demonstrate that optimising the data packet structure significantly improves communication efficiency, reduces the risk of data loss, and meets the requirements for vibration monitoring in low-cost wireless SHM applications.

Considering the characteristics of vibration data and the constraints of low-power wireless communication, this study focuses on the design and optimization of the data packet structure, with particular emphasis on the relationship between the number of measurement samples per packet, the number of transmitted packets, and transmission reliability. Experimental investigations are conducted under multiple sampling configurations to evaluate the impact of different data packetization strategies on transmission performance and data integrity.

The experimental results demonstrate that optimizing the data packet structure significantly enhances communication efficiency, reduces the risk of data loss, and satisfies the requirements for vibration monitoring in low-cost wireless SHM applications.