共查询到19条相似文献,搜索用时 187 毫秒
1.
2.
3.
4.
为了实时了解农作物生长环境信息,综合运用传感器技术、嵌入式技术和基于蜂窝的窄带物联网(Narrow Band Internet of Things,NB-IoT)等先进的信息技术,设计了基于NB-IoT的农田远程监测系统。此系统可对农田空气温湿度、土壤温湿度、光照强度、二氧化碳浓度、土壤pH值进行监测,并利用NB-IoT网络将实时采集的农田环境数据上传到后台管理服务器。后台服务器部署的农田环境数据监测平台采用LNMP(Linux+Nginx+My SQL+PHP)网站服务器架构实现,用户可使用浏览器访问农田环境数据监测平台来获取农田环境数据。该系统具有功能实用、操作简单、可大规模部署等特点。 相似文献
5.
《农业工程技术:农产品加工》2014,(12)
<正>近几年,物联网传感器技术已经逐步渗透到农业信息化领域中,使用传感器获取农作物生长环境数据,通过互联网将数据进行实时的共享和交换成为了可能。与此同时,随着移动互联网技术的迅猛发展,Android智能手机已经相当普及,使用移动设备,随时随地获取农作物生长环境数据能够帮助人们更好的掌控作物生长环境并及时做出决策,减少恶劣的生长环境造成的作物减产或死亡。蔬菜育苗环境远程监测物联网系统是一款将物 相似文献
6.
7.
李兴霞 《黑龙江八一农垦大学学报》2010,22(6):72-74,82
根据精准农业的需求,结合嵌入式技术、无线远程通信技术、GPS定位技术以及传感器技术等领域的最新研究成果,设计了一套能够实时采集多种农田数据的系统。该系统可以采集、显示多种农田数据,还能够经GPRS网络实现远程数据传输,远程数据中心建有数据库,可供用户随时浏览环境数据。此系统适合远程条件下对分散农田环境信息进行监测与管理,为农田管理决策、智能控制等提供数据支持。 相似文献
8.
利用LabVIEW虚拟仪器开发平台,结合数据采集技术、传感器技术和GPRS网络设计一种温室大棚远程监控系统。该系统包括参数采集装置、GPRS数据传输单元及监控中心3大模块。实际运行结果表明,该系统安全可靠,实现了数据的网络化采集和数据远程传输,具有数据显示、监测和存储等功能。 相似文献
9.
10.
《江苏农业科学》2016,(8)
随着智能农业与精细农业的迅速发展,特别是物联网+农业的提出,针对目前在大棚中对各种环境参数实时监测就要进行复杂繁琐的布线的情况,为了实现农作物能够在大棚中有适宜的生长环境,同时还要达到对温室环境进行实时监测的目的,提出1种基于北斗和ZigBee技术的温大棚环境无线监测系统。该系统采用无线传感网实现对温室大棚的空气温度、土壤湿度和光照度等指标进行数据采集,并由LCD显示器实时显示出测量的数据,并通过北斗通信技术实现实时远程监测的目的。经试验测试,该系统可以实时采集和远程传输大棚内的参数信息,达到了对温室花房环境实时监控的作用,为人们管理大棚提供了很大的方便,具有广阔的推广价值。 相似文献
11.
12.
13.
14.
15.
16.
Perspective of Chinese GF-1 high-resolution satellite data in agricultural remote sensing monitoring
《农业科学学报》2017,(2)
High-resolution satellite data have been playing an important role in agricultural remote sensing monitoring. However,the major data sources of high-resolution images are not owned by China. The cost of large scale use of high resolution imagery data becomes prohibitive. In pace of the launch of the Chinese "High Resolution Earth Observation Systems",China is able to receive superb high-resolution remotely sensed images(GF series) that equalizes or even surpasses foreign similar satellites in respect of spatial resolution,scanning width and revisit period. This paper provides a perspective of using high resolution remote sensing data from satellite GF-1 for agriculture monitoring. It also assesses the applicability of GF-1 data for agricultural monitoring,and identifies potential applications from regional to national scales. GF-1's high resolution(i.e.,2 m/8 m),high revisit cycle(i.e.,4 days),and its visible and near-infrared(VNIR) spectral bands enable a continuous,efficient and effective agricultural dynamics monitoring. Thus,it has gradually substituted the foreign data sources for mapping crop planting areas,monitoring crop growth,estimating crop yield,monitoring natural disasters,and supporting precision and facility agriculture in China agricultural remote sensing monitoring system(CHARMS). However,it is still at the initial stage of GF-1 data application in agricultural remote sensing monitoring. Advanced algorithms for estimating agronomic parameters and soil quality with GF-1 data need to be further investigated,especially for improving the performance of remote sensing monitoring in the fragmented landscapes. In addition,the thematic product series in terms of land cover,crop allocation,crop growth and production are required to be developed in association with other data sources at multiple spatial scales. Despite the advantages,the issues such as low spectrum resolution and image distortion associated with high spatial resolution and wide swath width,might pose challenges for GF-1 data applications and need to be addressed in future agricultural monitoring. 相似文献
17.
《农业科学学报》2017,(2)
Variation in phenological stage is the major nonlinearity in monitoring,modeling and various estimations of agricultural systems. Indices are used as a common means of evaluating agricultural monitoring data from remote sensing and terrestrial observation systems,and many of these indices have linear characteristics. The analysis of and relationships between indices are dependent on the type of plant,but they are also highly variable with respect to its phenological stage. For this reason,variations in the phenological stage affect the performance of spatiotemporal crop status monitoring. We hereby propose an adaptive event-triggered model for monitoring crop status based on remote sensing data and terrestrial observations. In the proposed model,the estimation of phenological stage is a part of predicting crop status,and spatially distributed remote sensing parameters and temporal terrestrial monitoring data are used together as inputs in a state space system model. The temporal data are segmented with respect to the phenological stage-oriented timing of the spatial data,so instead of a generalized discrete state space model,we used logical states combined with analog inputs and adaptive trigger functions,as in the case of a Mealy machine model. This provides the necessary nonlinearity for the state transitions. The results showed that observation parameters have considerably greater significance in crop status monitoring with respect to conventional agricultural data fusion techniques. 相似文献
18.
作物环境胁迫高光谱遥感监测研究进展 总被引:1,自引:0,他引:1
作物环境胁迫频发不仅严重影响区域粮食生产和生态安全,还威胁社会经济稳定和可持续发展,高光谱遥感可实时、准确监测作物环境胁迫,与传统监测方法相比具有较大优势。首先阐述了高光谱遥感监测作物环境胁迫的理论基础,重点从基于光谱响应特征的直接监测、基于农学参数和生理信息反演的间接监测两方面,概述了高光谱遥感在监测作物病虫害、水分胁迫方面的研究进展。在此基础上,提出了目前该技术在作物环境胁迫监测应用领域的不足,如光谱响应特征的专属性认识不足、反演模型的精度及普适性较低、数据使用受到限制等,并讨论了高光谱遥感在作物环境胁迫监测方面的发展方向,旨在为农作物环境胁迫监测及预警提供参考。 相似文献