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《南方农机》2017,(17)
目前我国气象相关部门依托"互联网+"技术,成功地将农业气象短信业务演变成"气象服务三农"的核心内容。笔者以当下辽宁省沈阳市农村地区的多年气象数据为基础,设计了辽宁省沈阳市农村地区的农业气象短信平台的基础业务和农业气象短信编辑管理系统,以MAT LAB软件为基础的开发工具,设计了一套以短信制作、数据管理、加载项和帮助等主要功能的农业气象短信服务业务系统,该系统可以通过读取沈阳市农村地区近一周的气象数据,并且通过A/D信号转换和D/A信号转换进行智能化分析,将相关的农业气象信息显示于显示器,由相关的值班工作人员通过电脑存储操作和点击"群发"模块,实现对沈阳市农村地区的短信发送服务,从而使得从事农业生产活动的农民可以及时地通过农业气象变化,提前做出相应的准备,提高农业生产的效率。 相似文献
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<正>为鼓励基层农机技术人员学习新知识、运用新技术,加快基层农机推广补助项目实施的步伐,山东省成武县农机局利用项目资金统一出资订购了中国知网的"农机科技网络书屋"科普资料,为全县农机技术人员提供了学习交流农机技术和科学知识的平台。据悉,农业科技网络书屋以个性化定制、实时推送的形式,内容丰富、权威、实用,涵盖农机新技术、新 相似文献
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基于统一平台技术的智能操作票系统 总被引:2,自引:0,他引:2
在调度自动化、变电站自动化、微机保护装置和电动操作设备的基础上,利用网络技术、统一平台技术和人工智能技术,完成基于统一平台的变电站智能操作票系统。该系统支持操作票三审流程、自动规则校验及操作票自动执行功能。该文介绍了变电站智能操作票系统的技术特点、设计原则、体系结构和系统功能。 相似文献
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农村综合信息服务应用平台的设计 总被引:2,自引:0,他引:2
结合当前农业和农村发展的实际,提出了农村综合信息服务平台的概念,制定了农村农业信息化解决方案,并详细地介绍了信息平台的设计和实现策略.农村综合信息服务应用平台集成了数据挖掘技术﹑数据仓库技术﹑短信平台技术和电话语音服务技术及VOD视频点播技术,适合为广大农村用户和相关企业政府部门提供实时最新的农业市场信息,使各类用户对市场第一时间做出准确的判断. 相似文献
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黑龙江省农业物价信息手机短信采集系统建设概述 总被引:1,自引:0,他引:1
正一、农业物价短信采集平台建设的意义实施农业物价手机短信采集项目主要是发挥手机短信应用普及率高、应用便利、及时性强的优势,建立我省手机短信采集农业物价信息系统,通过定期物价信息和应急物价信息采集,及时掌握全省农产品及农资市场价格变动情况,为科学分析农产品和农资市场运行情况提供可靠依据,为制定政策措施提供有力支撑。二、平台建设主要目标建立以省农委农业物价手机短信平台为中心,涵盖全省13个市(地)、25个农业物价基点县为节点(价格 相似文献
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A variety of technologies for reducing residential irrigation water use are available to homeowners. These “Smart Irrigation” technologies include evapotranspiration (ET)-based controllers and soil moisture sensor (SMS) controllers. The purpose of this research was to evaluate the effectiveness of these technologies, along with rain sensors, based on irrigation applied and turfgrass quality measurements on St. Augustinegrass (Stenotaphrum secundatum (Walter) Kuntze). Testing was performed on two types of SMS controllers (LawnLogic LL1004 and Acclima Digital TDT RS500) at three soil moisture threshold settings. Mini-Clik rain sensors (RS) comprised six treatments at two rainfall thresholds (3 mm and 6 mm) and three different irrigation frequencies (1, 2, and 7 d/wk). Two ET controllers were also tested, the Toro Intelli-Sense controller and the Rain Bird ET Manager. A time-based treatment with 2 days of irrigation per week without any type of sensor (WOS) to bypass irrigation was established as a comparison. All irrigation controller programming represented settings that might be used in residential/commercial landscapes. Even though three of the four testing periods were relatively dry, all of the technologies tested managed to reduce water application compared to the WOS treatment, with most treatments also producing acceptable turf quality. Reductions in irrigation applied were as follows: 7–30% for RS-based treatments, 0–74% for SMS-based treatments, and 25–62% for ET-based treatments. The SMS treatments at low threshold settings resulted in high water savings, but reduced turf quality to unacceptable levels. The medium threshold setting (approximately field capacity) SMS-based treatment produced good turfgrass quality while reducing irrigation water use compared to WOS by 11–53%. ET controllers with comparable settings and good turf quality had −20% to 59% savings. Reducing the irrigation schedule (treatment DWRS) by 40% and using a rain sensor produced water savings between 36% and 53% similar to smart controllers. Proper installation and programming of each of the technologies was essential element to balancing water conservation and acceptable turf quality. Water savings with the SMS controllers could have been increased with a reduced time-based irrigation schedule. Efficiency settings of 100% (DWRS) and 95% (TORO) did not reduce turf quality below acceptable limits and resulted in substantial irrigation savings, indicating that efficiency values need not be low in well designed and maintained irrigation systems. For most conditions in Florida, the DWRS schedule (60% of schedule used for SMS treatments) can be used with either rain sensors or soil moisture sensors in bypass control mode as long as the irrigation system has good coverage and is in good repair. 相似文献
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液黏调速离合器是一种依靠多油膜剪切力传递扭矩的装置,尤其适合于大型风机、水泵等工程机械调速节能.由于其各摩擦副润滑油入口处油压、流量大小无法保证均匀一致,在实际工程应用中往往出现摩擦副过热、变形、偏磨等问题.为了解决此类问题,提出了一种新型离心油腔式液黏调速离合器.理论分析表明:充分利用油腔离心力的甩油作用可使得润滑油均匀地甩入各摩擦副.另外,基于流体动力学理论,建立了2种不同结构的三维流场模型,应用Fluent对流场进行数值模拟计算,研究了油腔结构和普通油道结构对喷油孔处压力和流速的分布规律.仿真结果表明:离心式油腔的设计可显著提高液黏调速离合器各摩擦副润滑油入口处油压及流量的均匀性,从而提升液黏调速离合器的工作性能,延长其工作寿命. 相似文献
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