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电声传感技术辅助的无人机环境监测方法研究
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作者 孙军辉 《电声技术》 2024年第2期113-115,共3页
文章研究了无人机环境监测系统中的声电传感器信号分析方法,通过UrbanSound数据集进行实证验证。首先,介绍无人机环境监测系统的基本原理。其次,采用循环神经网络(Recurrent Neural Network,RNN)模型对声电传感器信号进行分类,同时引入... 文章研究了无人机环境监测系统中的声电传感器信号分析方法,通过UrbanSound数据集进行实证验证。首先,介绍无人机环境监测系统的基本原理。其次,采用循环神经网络(Recurrent Neural Network,RNN)模型对声电传感器信号进行分类,同时引入丢弃法等正则化手段以优化模型性能。最后的实验表明,相较于传统RNN,正则化RNN在准确率、精确度和召回率等性能指标上均取得了显著提升。 展开更多
关键词 无人机 声电传感技术 循环神经网络(RNN) 正则化
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Wireless environmental monitoring system for transformer substation based on acoustic sensor
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作者 朱昌平 Huang Yon.gliang Shan Minglei 《High Technology Letters》 EI CAS 2012年第4期394-400,共7页
In this paper, an indoor environmental monitoring solution is proposed for the transformer sub- station system by using the ZigBee technology. It mainly analyzes the principle of sulfur hexafluoride sensor based on th... In this paper, an indoor environmental monitoring solution is proposed for the transformer sub- station system by using the ZigBee technology. It mainly analyzes the principle of sulfur hexafluoride sensor based on the acoustic method and puts forward a difference data processing method of single- channel and temperature compensation point at power consumption issues for sensor detection. The method not only reduces the sensor power consumption, but also ensures the accuracy and extends the lifetime of wireless sensor nodes effectively. This paper also analyzes the design of the base sta- tion mode, and demonstrates the running processes of routers and sensors. The feasibility of the pro- posed approach has been testified and proved. 展开更多
关键词 environmental monitoring acoustic sensor ZigBee wireless network CC2430
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