Development and Experimentation of a Real-Time Greenhouse Positioning System Based on IUKF-UWB

Minghua Li, Hongyan Gao, Mingxue Zhao and Hanping Mao ()
Additional contact information
Minghua Li: College of Mechanical and Electrical Engineering, Xinjiang Agricultural University, Urumqi 830052, China
Hongyan Gao: School of Agricultural Equipment Engineering, Jiangsu University, Zhenjiang 212013, China
Mingxue Zhao: School of Agricultural Equipment Engineering, Jiangsu University, Zhenjiang 212013, China
Hanping Mao: College of Mechanical and Electrical Engineering, Xinjiang Agricultural University, Urumqi 830052, China

Agriculture, 2024, vol. 14, issue 9, 1-17

Abstract: To mitigate the challenges posed by the confined spatial environment of greenhouses and various obstacles that frequently cause non-line-of-sight (NLOS) communication issues in ultra-wideband (UWB) localization systems, leading to localization difficulties and low accuracy, we propose a real-time greenhouse localization system that recognizes UWB ranging values prior to correction. First, the initial ranging value is obtained through double-sided two-way ranging (DS-TWR). Subsequently, a communication state identifier is designed based on the residual distribution of ranging values across two UWB communication modes. A correction model is then established by analyzing the causes of ranging value deviations. Finally, the NLOS localization deviation is corrected using an improved unscented Kalman filter (IUKF) algorithm. Experimental results in the greenhouse environment demonstrate that the proposed algorithm enhances positioning accuracy by 68% compared to the uncorrected localization method, offering a valuable reference for localization services in greenhouse settings.

Keywords: greenhouse; positioning; UWB; IUKF; IoT (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2024
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/2077-0472/14/9/1479/pdf (application/pdf)
https://www.mdpi.com/2077-0472/14/9/1479/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jagris:v:14:y:2024:i:9:p:1479-:d:1467823

Access Statistics for this article

Agriculture is currently edited by Ms. Leda Xuan

More articles in Agriculture from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().