Design and verification of an indoor wireless UWB positioning system for civil structures

Ting Lei; Xuefeng Cao; Jie Wang; Yan Yu

doi:10.1117/12.2296314

27 March 2018 Design and verification of an indoor wireless UWB positioning system for civil structures

Ting Lei, Xuefeng Cao, Jie Wang, Yan Yu

Proceedings Volume 10598, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2018; 105983S (2018) https://doi.org/10.1117/12.2296314
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2018, Denver, Colorado, United States

Abstract

The rapid development of wireless communication and sensor technology provides an infinite possibility for extending the inherent function of civil structures through various methods. As an important branch of wireless communication technology, UWB technology has the advantages of strong anti-interference ability, high multipath resolution, and can provide decimeter level positioning accuracy. Based on this, we design and implement an indoor positioning system based on UWB wireless communication technology, and propose an improved least squares (ILS) algorithm to verify the performance of the system. The system adopts star network topology, which consists of one target node (TN) and several anchor nodes (ANs). In the process of positioning, the TN communicates with all the known ANs by polling. In this process, the respective receiving and sending timestamps are obtained, after unified collection and then convert it to the distance between the TN and each ANs. Finally, the location of the TN is achieved by the algorithm of the host computer. The ILS algorithm obtains more positioning results and more accurately reflects the position of the TN after solving the arithmetic mean. Experiments on a large number of different scenes to verify the stability of the system and prove the effectiveness of the ILS algorithm. In a word, the system realizes the acquirement of the target position information in the building space and improves the intelligence of the civil structure.

Citation Download Citation

Ting Lei, Xuefeng Cao, Jie Wang, and Yan Yu "Design and verification of an indoor wireless UWB positioning system for civil structures", Proc. SPIE 10598, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2018, 105983S (27 March 2018); https://doi.org/10.1117/12.2296314

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KEYWORDS

Wireless communications

Distance measurement

Telecommunications

Error analysis

Ranging

Detection and tracking algorithms

Structural design

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