【摘要】：精細(xì)農(nóng)業(yè)應(yīng)用領(lǐng)域中的農(nóng)情信息獲取設(shè)備種類繁多,輸入輸出接口多樣,但是功能相對單一,可擴(kuò)展性有待提高。為此,設(shè)計(jì)一種基于Android操作系統(tǒng)的多業(yè)務(wù)農(nóng)情信息獲取節(jié)點(diǎn),以展訊SC7731G為主控芯片,結(jié)合ADC接口、麥克風(fēng)、圖像傳感器以及Wi Fi和3G無線通信模塊等,實(shí)現(xiàn)基于文本、音頻、圖像/視頻等多業(yè)務(wù)農(nóng)情信息的一體化快速采集和無線傳輸。為了驗(yàn)證節(jié)點(diǎn)的農(nóng)情信息采集功能和無線傳輸性能,在室內(nèi)外環(huán)境中進(jìn)行了基于土壤濕度、音頻、圖像及視頻的數(shù)據(jù)采集試驗(yàn),通過3G移動(dòng)網(wǎng)絡(luò)傳輸音頻數(shù)據(jù),平均速率達(dá)到21 kbyte/s;通過Wi Fi局域網(wǎng)傳輸圖像和視頻數(shù)據(jù),平均速率可達(dá)到2.63 Mbyte/s。試驗(yàn)結(jié)果表明,節(jié)點(diǎn)能夠通過ADC接口外接文本數(shù)據(jù)傳感器,具備良好的音頻、圖像及視頻采集功能,能夠滿足精細(xì)農(nóng)業(yè)對多業(yè)務(wù)農(nóng)情信息的快速獲取和無線傳輸需要。
[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.
【作者單位】： 華南農(nóng)業(yè)大學(xué)數(shù)學(xué)與信息學(xué)院;
【基金】：廣東省自然科學(xué)基金項(xiàng)目(2016A030313389) 廣東省科技計(jì)劃項(xiàng)目(2014B020205004,2015A020209129,2016B010110005,2017A030222001) 國家星火計(jì)劃項(xiàng)目(2015GA780038)
【分類號】：S126;TP212
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本文編號：2425941