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渔业船联网工程是通过在渔船上搭载信息感知、处理和传输装备,从而实现船与船、船与岸之间的信息交换和智能化服务,在渔业生产、海上通信、安全管理、渔政执法及海洋探测等领域具有的重要科学意义和实用价值。本文分析了渔业船联网工程体系的应用现状及演化趋势,详细总结了渔业船联网感知层、传输层和应用层的国内外现状及发展趋势,梳理了所涉及的关键技术和科学问题。围绕渔船探测、海洋通信、数据融合与挖掘等重大需求,分析了中国渔业船联网发展在基础研究、平台建设、尖端技术、装备工程、标准体系等方面存在的主要问题与障碍,指出了中国渔业船联网工程体系科技创新发展对策,提出了以“突破关键技术、研发核心装备、构建基础平台、形成创新能力”为目标、以“探索期、部署期、拓展期”为路线的系统工程发展建议。 相似文献
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为进一步推动智能化管理技术在蔬菜生产经营中的应用,提出蔬菜生产智能化技术的总体架构,分析大数据背景下蔬菜数据来源和获取手段,总结蔬菜病害诊断、环境与水肥调控、栽培管理决策、生产作业管理、智能信息服务等方面的关键技术。在此基础上,指出蔬菜生产智能化管理技术在研究应用中面临的挑战,提出蔬菜生产智能化管理技术的发展建议。智能化是现代农业发展的要素,利用智能信息技术提高蔬菜产业综合生产力和效益是最终目的,应深度挖掘现实需求,整合蔬菜全产业链数据,推进智能信息技术与蔬菜产业的深度融合,支撑国内蔬菜产业转型升级。 相似文献
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北方果树霜冻害远程监控与报警系统初步研究与实现 总被引：1，自引：1，他引：0
为提高北方果树防霜冻害管理水平,基于物联网架构,设计实现了北方果树霜冻害监测与报警系统。该系统结合实时获取果树生长环境数据,及果树霜冻害发生规律和专家知识库,为用户提供远程果树环境信息分析和霜冻害智能诊断服务。同时为满足不同生产条件需求,结合用户需求和环境状况,提供自动报警。根据用户随时随地获取信息的需求,基于多种网络技术等(如Internet、android等移动互联网),开发了可用于PC终端、移动终端(如智能手机、平板电脑等)多平台管理模式。通过提供现场综合远程实时监控、数据采集、网络传输、数据管理分析及报警预警等功能,系统实现了对果树生长的全方位多功能的远程监控与综合管理,有效提高了果树防霜冻害监控管理水平。 相似文献
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智能控制冷源缓释均温储粮技术研究 总被引：1，自引：0，他引：1
在高大平房仓的散装储粮环境中,高温季节充分利用粮堆内储存的冷源,使用管网和冷源采集箱等收集、抽取冷源来缓释、均衡粮温.选用数台小型直流风机在粮堆内进行环流.以粮温为依据,使用微电脑智能控制风机的运转,合理利用冷源,真正做到有的放矢.该系统作智能补冷的应用时,可有效的降低能耗.实现科学储粮技术智能化. 相似文献
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QING Xiao_xia 《保鲜与加工》1999,(6):105-108
This paper presents the architecture of intelligent system in the uptown, summarizes the major techniques for access networks, discusses the main technical plans of access networks for the information network aimed at the intelligent uptowns under construction and constructed in the mainland of China. 相似文献
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A lot of information needs processing in time in dynamic balance testing, but the current intelligent dynamic balance instruments and the controlling box of dynamic balance machines made up ofsinglemicrocontroller do not meet the request.A method isgioen that the DSP-Microcontroller will be useddiredtlyinthe system of the intelligent dynamic balance instrumentby using embedded design technique. A principal and subordinate control system compose of DSP and microcontroller. The Microcontroller the system as a principal controller and the DSP implements digital filtering and FFT in dynamic balanc by means of its fast operation. The system develoyed according tothe method can do more analysisin time areaand frequency area. 相似文献
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Based on the neural networks, object oriented technique, artificial intelligence technique and computer networks, an intelligent fault diagnosis system of the power plant whose need of the operation is presented. The architecture of software system , hardware system and corresponding databases is designed. The software of collecting data is established. The intelligent fault diagnosis system based on neural networks and object oriented technique is also developed. The physical system operation has been shown that the method mentioned above is feasible and effective in practice. 相似文献
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In practical industrial fields, it is very difficult to control uncertain complexity object effectively, because there are various uncertainties from internal dynamic characteristic and external, surroundings disturbance for controlled object. Its complexity is not only shown in structure, but also in information relation, so it is uneasy to implement it on technology. Aimed at selecting puzzle of control strategy for uncertain complexity system control, the authors describe cybernetics model based on analysis on some kinds of control strategy and contrastive research, and the model is applied in physical engineering system successfully. Finally, the authors point out that intelligent control strategy should be selected for uncertain complexity system control, and that Human Simulation Intelligent Control is a wise choice. 相似文献
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Aiming at the shortcomings of the existing RSS(received signal strength) based localization algorithm for wireless sensor networks (WSN), a cooperative localization algorithm (CLA) is proposed. A reference anchor node is introduced to tolerant some minor error including the node position error. Dixon detection method is applied to remove abnormal RSS values, while the standard deviation threshold of RSS and learning model are introduced to reduce the RSS ranging error and effectively improve the precision. Simulation experiments are performed to evaluate the performance of the proposed algorithm. The results demonstrate that the localization accuracy is improved effectively, while the stability and robustness are better. 相似文献
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Wu Gang Zhu Linzhang 《保鲜与加工》1989,(5):76-83
This paper presents a new error analysis method based on the
information theory. The analyse results of error of a digital measurement system will be illustrated more reasonably. This method is defined information theory combination, it will overcome the unintention between the uncertainty and the standard error of measuring results by traditional error analysis. On the basis of error spectrum analysis of sampling and quantization, an optimum digital filtering method is also presented in this paper. Simulation and testing show that the method is more resultful. 相似文献
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This paper describes the advanced technologies applied by the author on the development of client applications using Power Builder.The main topics are focused on the manipulations of intelligent object,Data Window of Power Builder. 相似文献
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智能机器人在农业自动化领域的主要应用 总被引：3，自引：0，他引：3
通过对智能机器人在农业自动化领域的主要应用进行研究,包括采摘机器人、嫁接机器人、耕耘机器人、除草机器人、喷农药机器人、插秧机器人、林木清洁机器人、饲喂机器人、禽蛋检测与分级机器人。发现应用于农业智能机器人的主要技术有感知与避障技术、机器视觉技术、信息融合技术及农业专家系统。农业机器人的智能问题、成本过高问题和易受环境变化的影响问题,需要进一步研究解决。 相似文献
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组织特异表达启动子RSS1P在转TiERF1基因小麦中的应用 总被引：2，自引：2，他引：0
从水稻叶片中克隆了一个韧皮部组织特异表达的水稻蔗糖合酶启动子(RSS1P),将RSS1P与中间偃麦草乙烯反应因子基因TiERF1相融合构成组织特异表达的TiERF1基因表达盒,取代pAHC20中Ubi::bar基因表达盒,构建成无选择标记的韧皮部组织特异表达的pA20-RSS1P::TiERF1载体。利用基因枪将pA20-RSS1P::TiERF1与pAHC20载体混合、共轰击小麦品种扬麦12的幼胚愈伤组织,获得转RSS1P::TiERF1基因小麦。对该转基因小麦T0和T1代植株进行PCR、PCR-Southern、半定量RT-PCR和荧光定量PCR分析,证实外源RSS1P::TiERF1基因已转入受体,并且具有可遗传性;转入的RSS1P::TiERF1基因仅在根、茎、叶中表达,以根部表达量最高,在种子内不表达。纹枯病抗性鉴定和主要农艺性状考察结果表明,与受体扬麦12相比,转RSS1P::TiERF1基因小麦对纹枯病的抗性有明显提高,与转Ubi::TiERF1基因小麦的抗病性相当,而且转RSS1P::TiERF1基因小麦的农艺性状没有明显改变,说明可以利用RSS1P启动子创造更实用的转基因小麦新种质。 相似文献