传感技术学报2017，Vol.30Issue(12)：1912-1917,6.DOI:10.3969/j.issn.1004-1699.2017.12.022
一种嵌入式多业务农情信息无线获取节点开发
An Embedded Wireless Sensor for Multi-Service Agricultural Information Acquisition
摘要
Abstract
Agricultural information devices have different varieties and various input/output interfaces, however, these devices are lack of extensibility. To meet the demand of multi-service agricultural information acquisition for precision agriculture,a multi-service agricultural information acquisition node with multi-function integration is de-veloped based on Android embedded operating system. SC7731 chip is used as microcontroller chip of the node. Combined with ADC interface,microphone,image sensor,WiFi and 3G mobile communication module,the node is designed for rapid acquisition and wireless transmission of multi-service agricultural information in form of text,au-dio,image and video. To verify the performance of agricultural information acquisition and wireless data transmission of the node,experiments are done to acquire data of soil moisture content,audio,image and video. Audio data are transmitted by 3G mobile communication networks;the average transmission rate is about to 21 kbyte/s. Take large data volume into account,image and video data are transmitted by WiFi local area networks,the average rate is a-bout to 2.63 Mbyte/s. The results show that the node can be connected with some sensors for text information acqui-sition by ADC interface,and works well on data acquisition of audio,image and video. The results also indicate that the node is feasible for rapid acquisition and wireless transmission of multi-service agricultural information in preci-sion agriculture.关键词
农情信息获取/无线传感器/模数转换器/音频信号/图像传感器Key words
agricultural information acquisition/wireless sensor/analog and digital converter/audio signal/image sensor分类
信息技术与安全科学引用本文复制引用
肖克辉,冯健昭,肖德琴..一种嵌入式多业务农情信息无线获取节点开发[J].传感技术学报,2017,30(12):1912-1917,6.基金项目
广东省自然科学基金项目(2016A030313389) （2016A030313389）
广东省科技计划项目(2014B020205004,2015A020209129,2016B010110005,2017A030222001) （2014B020205004,2015A020209129,2016B010110005,2017A030222001）
国家星火计划项目(2015GA780038) （2015GA780038）
