物联网中的光纤供能传感系统设计与实现

发布时间：2018-04-16 09:01

本文选题：物联网 + 光纤供能　；参考：《光电子·激光》2015年08期

【摘要】：采用光纤供能技术,即高能量激光束经过抗电磁干扰的光纤链路传输,并通过光伏能量转换器(PPC)转换为电能后以安全地驱动传感节点,从而构建了恶劣环境下的物联网传感系统。设计了阻抗匹配跟踪方法使PPC在连接任意负载时尽可能地输出最大电功率,从而提高了供能效率;基于此方法实现的电源管理器对能量进行存储,并为传感节点提供合适的驱动电压;进而,设计了简单可靠的自定义通信协议以调节传感节点的工作模式,从而降低传感节点功耗而提高系统的应用能力。在构建的光纤供能传感系统中,PPC在1.5 W的入射光功率下最大可输出555mW的稳定电功率,有效光电转换效率达到37%。传感系统可以稳定地在2km范围的复杂环境下采集、处理与显示传感信息,为安全可靠的物联网传感技术提供了新颖的解决方案。
[Abstract]:The optical fiber energy supply technology is adopted, that is, the high energy laser beam is transmitted through the optical fiber link against electromagnetic interference, and converted to electric energy through the photovoltaic energy converter (PPC) to drive the sensor node safely.In order to build a harsh environment of the Internet of things sensing system.The impedance matching tracking method is designed to make PPC output the maximum electric power as much as possible when connecting any load, thus improving the efficiency of energy supply, and the power manager based on this method stores the energy.Furthermore, a simple and reliable custom communication protocol is designed to adjust the working mode of the sensor node, thus reducing the power consumption of the sensor node and improving the application capability of the system.In the fiber optic energy supply sensing system, the stable power of 555mW can be outputted at the incident light power of 1.5 W, and the effective photoelectric conversion efficiency is up to 37%.The sensor system can stably collect, process and display the sensing information in the complex environment of 2km, which provides a novel solution for the secure and reliable Internet of things sensing technology.
【作者单位】：南京邮电大学光电工程学院;中天科技光纤有限公司;江苏中天科技股份有限公司;
【基金】：江苏省产学研前瞻性联合研究项目(BY2014013)资助项目
【分类号】：TP212;TP391.44;TN929.5

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