土地荒漠化的扩张严重威胁着生态环境的可持续发展,对区域风速进行实时监测能为荒漠化防治工作提供科学的决策支撑。然而,目前大多数风速监测装置都存在严重依赖外部电源、功耗高的问题。为此,设计了一种基于复合能量采集的自供电风速监测系统。测试结果表明,该系统能够通过能源管理电路对太阳能和风能进行复合采集和储存,以驱动后端电路。无线传输模块将摩擦纳米发电机的输出信号上传至数据终端,最终实现风速信息的显示和存储。此外,低功耗逻辑设计有效延长了传感节点的工作时长。这项工作推动了自供电传感技术在环境监测领域的应用。
Abstract
The expansion of land desertification is a serious threat to the sustainable development of the ecological environment.Real-time monitoring of regional wind speed can provide scientific decision-making support for desertification control work.However,most wind-speed monitoring devices have the problem of heavy dependence on external power supply and high power consumption.To this end,a self-powered wind speed monitoring system based on composite energy harvesting is designed.The experiment results show that the system can collect and store solar energy and wind energy compositely through the energy management circuit to drive the back-end circuit.The wireless transmission module uploads the output signal of the triboelectric nanogenerator to the data terminal,and finally realizes the display and storage of wind speed information.In addition,the low-power logic design effectively prolongs the working time of the sensing node.This work promotes the application of self-powered sensing in the field of environmental monitoring.
关键词
自供电风速监测 /
ESP32 /
CC1101
Key words
self-powered wind speed monitoring /
ESP32 /
CC1101
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基金
*国家自然科学基金(62171414,52175554,62101513)。
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