Development of Low-power Communication Beacons for Marine Instruments
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The National Natural Science Foundation of China (92058209, 41676033), Shenzhen Science and Technology Innovation Commission Project (KQTD20170810111725321, JCYJ20180504170422082, GJHZ20170313101107497), and Equipment and Technology Platform for Marine Resource Exploration & Earthquake Monitorin

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    Abstract:

    A reliable recovery system is crucial to marine instruments for effective observations and data acquisitions. The communication beacon between the instrument on the sea and the scientific research ship is a key part of the recovery system. The low-power marine instrument recovery communication beacon designed in this paper is a set of lightweight beacon machines that can be used for marine instrument recovery. The system integrates a global position system (GPS) positioning module and a Lora low-power long-distance communication module. The system can automatically switch to the standby mode while it float up. The system can work continuously for 48 h. Under the low-power standby mode, the theoretical standby time is over 5 years. Once the instrument floats up, the location information can be sent to the nearby ships. The effective communication distance can reach 7 km. The system can bear the pressure up to 9 000 m water depth. Power consumption test and communication test showed that, the proposed instrument has low power consumption, high positioning accuracy, high reliability, and long communication distance.

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LIU Kai, WANG Yizhi, LIU Dan, HUANG Xinfeng, WU Yuechu, YANG Difan, YANG Ting. Development of Low-power Communication Beacons for Marine Instruments[J]. Journal of Integration Technology,2021,10(2):29-38

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  • Received:
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  • Adopted:
  • Online: March 24,2021
  • Published: