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基于LoRa的海洋多功能信标组网及特性研究
綦声波, 张 峰, 姚 鹏
中国海洋大学 工程学院
摘要:
针对目前海洋观测网络通信距离、功耗、复杂度、抗干扰能力、成本之间的矛盾, 提出了一种基于LoRa(long range)的海洋多功能信标组网观测系统。通过运用新型的LoRa调制技术, 采用星型链路网络对多功能信标进行组网设计, 并结合北斗通信, 构建了一套覆盖范围广、功耗低, 组网简单,抗干扰性强的海洋监测网络系统, 能够有效实现近海和远海的全范围覆盖, 同时降低了组网的成本。通过对多功能信标的低功耗设计, 可有效降低信标功耗, 延长了工作周期。通过室内和室外的模拟实验, 验证了组网通信的有效性, 以及远距离传输数据特性, 为信标的升级设计和海洋组网观测打下了基础。
关键词:  LoRa(Long Range)网络  海洋信标  低功耗  覆盖范围
DOI:10.11759/hykx20171011009
分类号:
基金项目:国家自然科学基金(51475197); 国家重点研发计划(2016YFC1400800)
Investigation of LoRa-based marine multifunction beacon network and its characteristics
QI Sheng-bo, ZHANG Feng, YAO Peng
Abstract:
To address the issues of communication distance, power consumption, complexity, anti-interference ability, and operational cost of the ocean observing network, in this paper, we propose a multi-functional marine beacon network observation system based on long-range communication (LoRa). Using the new LoRa modulation technology and the star link network, we developed a beacon communication network and combined it with Beidou communication to produce a marine monitoring network system with wide-range coverage, low power consumption, simple networking, and strong anti-interference ability. This system can achieve a full range of offshore and remote coverage while reducing the networking cost. Through its low-power design, it effectively reduces the beacon power consumption and prolongs the work cycle. In indoor and outdoor simulation experiments, we verified the effectiveness of its network communication and long-distance transmission of data and laid the foundation for upgrading beacon design and ocean network observation performance.
Key words:  LoRa network  marine beacons  low power consumption  coverage
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