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Peng S, Liu J, Wu J, Li C, Liu B, Cai W, Yu H. A Low-Cost Electromagnetic Docking Guidance System for Micro Autonomous Underwater Vehicles. Sensors (Basel) 2019; 19:s19030682. [PMID: 30736464 PMCID: PMC6386859 DOI: 10.3390/s19030682] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2018] [Revised: 02/02/2019] [Accepted: 02/03/2019] [Indexed: 11/16/2022]
Abstract
As important observational platforms for the Smart Ocean concept, autonomous underwater vehicles (AUVs) that perform long-term observation in fleets are beneficial because they provide large-scale sampling data with a sufficient spatiotemporal resolution. Therefore, a large number of low-cost micro AUVs with docking capability for power recharge and data transmission are essential. This study designed a low-cost electromagnetic docking guidance (EMDG) system for micro AUVs. The EMDG system is composed of a transmitter coil located on the dock and a three-axial search coil magnetometer acting as a receiver. The search coil magnetometer was optimized for small sizes while maintaining sufficient sensitivity. The signal conditioning and processing subsystem was designed to calculate the deflection angle (β) for docking guidance. Underwater docking tests showed that the system can detect the electromagnetic signal and successfully guide AUV docking. The AUV can still perform docking in extreme positions, which cannot be realized through normal optical or acoustic guidance. This study is the first to focus on the EM guidance system for low-cost micro AUVs. The search coil sensor in the AUV is inexpensive and compact so that the system can be equipped on a wide range of AUVs.
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Affiliation(s)
- Shilin Peng
- College of Electronics and Information, Hangzhou Dianzi University, Hangzhou 310018, China.
- Zhejiang Provincial Key Lab of Equipment Electronics, Hangzhou 310018, China.
| | - Jingbiao Liu
- College of Electronics and Information, Hangzhou Dianzi University, Hangzhou 310018, China.
- Zhejiang Provincial Key Lab of Equipment Electronics, Hangzhou 310018, China.
| | - Junhao Wu
- College of Electronics and Information, Hangzhou Dianzi University, Hangzhou 310018, China.
- Zhejiang Provincial Key Lab of Equipment Electronics, Hangzhou 310018, China.
| | - Chong Li
- College of Electronics and Information, Hangzhou Dianzi University, Hangzhou 310018, China.
- Zhejiang Provincial Key Lab of Equipment Electronics, Hangzhou 310018, China.
| | - Benkun Liu
- College of Electronics and Information, Hangzhou Dianzi University, Hangzhou 310018, China.
- Zhejiang Provincial Key Lab of Equipment Electronics, Hangzhou 310018, China.
| | - Wenyu Cai
- College of Electronics and Information, Hangzhou Dianzi University, Hangzhou 310018, China.
- Zhejiang Provincial Key Lab of Equipment Electronics, Hangzhou 310018, China.
| | - Haibin Yu
- College of Electronics and Information, Hangzhou Dianzi University, Hangzhou 310018, China.
- Zhejiang Provincial Key Lab of Equipment Electronics, Hangzhou 310018, China.
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