一种嵌入式多业务农情信息无线获取节点开发
发布时间：2019-02-18 14:39
【摘要】：精细农业应用领域中的农情信息获取设备种类繁多,输入输出接口多样,但是功能相对单一,可扩展性有待提高。为此,设计一种基于Android操作系统的多业务农情信息获取节点,以展讯SC7731G为主控芯片,结合ADC接口、麦克风、图像传感器以及Wi Fi和3G无线通信模块等,实现基于文本、音频、图像/视频等多业务农情信息的一体化快速采集和无线传输。为了验证节点的农情信息采集功能和无线传输性能,在室内外环境中进行了基于土壤湿度、音频、图像及视频的数据采集试验,通过3G移动网络传输音频数据,平均速率达到21 kbyte/s;通过Wi Fi局域网传输图像和视频数据,平均速率可达到2.63 Mbyte/s。试验结果表明,节点能够通过ADC接口外接文本数据传感器,具备良好的音频、图像及视频采集功能,能够满足精细农业对多业务农情信息的快速获取和无线传输需要。
[Abstract]:In the application field of fine agriculture, there are many kinds of agricultural information acquisition equipment, various input and output interfaces, but the function is relatively single, and the expansibility needs to be improved. In this paper, a multi-service information acquisition node based on Android operating system is designed, which is based on text and audio, which is based on ADC interface, microphone, image sensor and wireless communication module of Wi Fi and 3G. Integrated fast collection and wireless transmission of multi-service agricultural information such as image / video. In order to verify the function of agricultural information collection and wireless transmission performance of nodes, a data acquisition experiment based on soil moisture, audio, image and video was carried out in indoor and outdoor environment, and audio data was transmitted through 3G mobile network. Average rate up to 21 kbyte/s; Using Wi Fi LAN to transmit image and video data, the average rate can reach 2.63 Mbyte/s.. The experimental results show that the node can connect text data sensor through ADC interface, and has good audio, image and video acquisition functions, and can meet the needs of fast access and wireless transmission of multi-service agricultural information in fine agriculture.
【作者单位】： 华南农业大学数学与信息学院;
【基金】：广东省自然科学基金项目(2016A030313389) 广东省科技计划项目(2014B020205004,2015A020209129,2016B010110005,2017A030222001) 国家星火计划项目(2015GA780038)
【分类号】：S126;TP212
，
本文编号：2425941
[Abstract]:In the application field of fine agriculture, there are many kinds of agricultural information acquisition equipment, various input and output interfaces, but the function is relatively single, and the expansibility needs to be improved. In this paper, a multi-service information acquisition node based on Android operating system is designed, which is based on text and audio, which is based on ADC interface, microphone, image sensor and wireless communication module of Wi Fi and 3G. Integrated fast collection and wireless transmission of multi-service agricultural information such as image / video. In order to verify the function of agricultural information collection and wireless transmission performance of nodes, a data acquisition experiment based on soil moisture, audio, image and video was carried out in indoor and outdoor environment, and audio data was transmitted through 3G mobile network. Average rate up to 21 kbyte/s; Using Wi Fi LAN to transmit image and video data, the average rate can reach 2.63 Mbyte/s.. The experimental results show that the node can connect text data sensor through ADC interface, and has good audio, image and video acquisition functions, and can meet the needs of fast access and wireless transmission of multi-service agricultural information in fine agriculture.
【作者单位】： 华南农业大学数学与信息学院;
【基金】：广东省自然科学基金项目(2016A030313389) 广东省科技计划项目(2014B020205004,2015A020209129,2016B010110005,2017A030222001) 国家星火计划项目(2015GA780038)
【分类号】：S126;TP212
，
本文编号：2425941
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