共查询到18条相似文献,搜索用时 140 毫秒
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基于无线传感器网络的温室测控系统研究设计 总被引:1,自引:0,他引:1
针对当前温室控制系统存在的扩展性差、智能化程度不高等问题,在分析了无线传感器网络特点的基础上,设计了基于无线传感器网络的温室测控系统的硬件及软件.硬件上设计了传感器节点和汇聚节点,采用温度、湿度、光照度等传感器,实现了温室环境参数的自动采集.软件上基于模块化的思想,实现了数据的获取、处理和控制输出等功能.该设计具有扩展性好、实用性强、便于操作的特点. 相似文献
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基于物联网的节水灌溉自控系统研究 总被引:1,自引:0,他引:1
为提高农田灌溉用水利用率、降低灌溉用水成本,提出一种基于无线传感器网络和Internet技术的农田自动灌溉控制方法。重点分析了传感器网络节点路由协议,实现了系统硬件与软件设计,将各种传感器构成智能化传感器网络,从而全面提升了系统的自动化与监测水平。最后分析了该网络在Internet基础上实现某农厂的农田节水灌溉自控系统的实现方法,用户使用手机或无线PDA就可以方便地进行土壤含水量的在线监测与控制,实现了灌溉自动化。应用结果表明,系统通过嵌入式控制技术完成智能化灌溉,有助于改善农业灌溉用水的利用率和灌溉系统的自动化水平普遍较低的现状,可很好地实现节水。 相似文献
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针对恶劣环境下远程未知监测区域,进行现场数据采集比较困难和危险的问题,以无线传感器网络技术为基础,设计了一种高精度数据采集系统。系统的无线声音传感器网络节点以FPGA为主控芯片,系统采用了模块化设计的思想,包括含有实现节点与上位机通信功能的USB数据接口模块、调理转换声音信号的采集调理模块、无线通信的无线收发模块、存储数据的存储模块、负责节点供电的电源管理模块。测试结果表明,系统最终可实现在24 KHz的采样率下对监测区域内频率为1 KHz的不同声音信号高精度采集。 相似文献
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针对弹药爆炸现场爆压测量难的问题,采用LabVIEW为工具设计了一套无线自动测控系统,主要由传感器网络节点、无线中继站AP和上位机三部分组成。测控系统以LabVIEW为主控软件,利用图形化编程语言和模块化设计实现了对无线传感器网络节点的控制、实验数据的读取、存储和分析。通过系统验证和测试表明,该系统具有数据采集、无线传输和远程控制的能力,完全能够胜任恶劣环境下爆炸现场爆压测量的重任。 相似文献
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《电信快报》2019,(1)
温室环境监测和控制系统是温室系统的核心。目前,市场上使用的大多数温室监测系统主要基于RS-485(串行总线标准)有线网络,下位机控制各种传感器采集环境参数,并通过RS-485网络将其传送给监控主机,从而实现自动控制环境参数。但该控制系统存在很多缺点,比如施工周期长,成本比较高,线路易老化,可靠性较差,传感器移动不便,网络规模较小等。针对温室环境监测系统存在的这些不足,提出基于Zigbee(紫蜂协议)的温室监控系统。此系统由Zigbee无线传感器节点,无线路由器节点,无线网络协调器和监控主机组成。Zigbee无线传感器节点用于采集环境信息。无线路由器节点用于接收传感器发送的环境数据,并通过网络协调器传送给监控主机。监控主机发出控制指令,从而实现环境参数的自动控制。监控主机还可以连接互联网,进而实现远程控制。 相似文献
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《电子世界》2017,(1)
为了在温度控制要求较高的场合实现智能温度控制,结合无线传感器网络和ZigBee等相关技术设计了一套智能温度监控系统。系统中协调器节点的主控单元选用STM32F103ZET6嵌入式单片机,传感器节点的数据采集与数据收发单元选用连接温度传感器DS18B20的CC2530无线射频芯片。传感器节点将采集到的温度信息经路由节点发送给协调器节点,由STM32F103ZET6单片机对收到的信息进行解析,然后通过串口转发到上位机进行存储、界面显示和控制。结果表明:本系统可在温度要求高的场所实现温度实时信息无线采集、传输以及控制,具有体积小、功耗低、布点灵活等优点,可用于多种环境中。 相似文献
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Experimental performance of soil monitoring system using IoT technique for automatic drip irrigation
Ravi Kant Jain Arpita Mukherjee Pratap Karmakar Aishwarya Banerjee Husan Akbarov Shavkat Hasanov 《International Journal of Communication Systems》2023,36(18):e5617
This paper proposes an IoT-enabled soil monitoring system using wireless sensor network for automatic irrigation in agricultural applications, especially for lemongrass plants, where an automated control system is required for irrigation applications. This can solve the problem of the water crisis, which is faced by the farmers during the cultivation of the crop in the field. This controls the water supply in the irrigation process using an IoT communication system. A system architecture for soil monitoring and controlling irrigation using IoT technique is designed where the different sensors and actuators like humidity, soil moisture, temperature, pump, and so forth are connected with a node microcontrol unit and message queuing telemetry transport (MQTT) protocol for enhancing communication capabilities. This wireless sensor network gives feedback to the system. This provides automation by the on/off pump system during drip irrigation. The sensor data are displayed on a PC or mobile phone through wireless communication and an IoT cloud platform. An experimental testing setup is developed and the experimental performance of a soil monitoring system using IoT technique for automatic drip irrigation has been carried out and soil moisture data are also stored in a cloud server for analytics. The performance shows that the MQTT protocol sends data within 48 s to the IoT cloud so that the data can be acquired in a faster manner. This shows that this kind of soil monitoring system is suitable for automatic drip irrigation, which enhances the farming process and overcomes the water crises in the agricultural system by reducing the wastage of water. 相似文献
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针对瓜田比较分散且覆盖范围较大,文中提出了一种基于ZigBee技术的瓜田自动灌溉系统。该系统采用分布式无线网络进行监控,通过搭载CC2530芯片的硬件电路,采集环境温度和湿度,利用远程无线ZigBee来控制现场灌溉阀门,最终实现瓜田管理的智能化。通过现场测试结果表明,该系统稳定、高效,具有良好的实用性及较大的推广价值。 相似文献
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Dae-Heon Park Beom-Jin Kang Kyung-Ryong Cho Chang-Sun Shin Sung-Eon Cho Jang-Woo Park Won-Mo Yang 《Wireless Personal Communications》2011,56(1):117-130
The system proposed in this paper collects temperature of leaves and humidity on leaves of crop. As well as greenhouse environmental
information such as temperature, humidity, etc. Crop diseases, especially, have deep relationship not only with indoor environmental
factors but also with humidity lasting time on leaves and temperature of leaves. Accordingly, monitoring crop itself is as
important as monitoring indoor environments. Using these collected greenhouse environmental data, indoor environments can
be more effectively controlled, and monitoring crop itself can contribute to improve productivity and to prevent crops from
damages by blight and harmful insects. In addition, it will be possible for farmers to do control plant growth through closely
studying relationship between indoor environmental information and monitored information on crop itself. Collected data can
be stored to database either in server installed in greenhouse or to remote server. It is made possible to collect information
and control effectively and automatically greenhouse in the site or from a remote place through web browser. System components
are: temperature sensor, humidity sensor, leaf temperature sensor, leaf humidity sensor, Zigbee based wireless sensor node,
relay nodes for automatic control, and data server to store greenhouse information. The system is implemented using low power
wireless components, and easy to install. 相似文献
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随着现代无线通讯技术的发展和普及,无线传感器网络的应用逐渐成熟。在此利用ZigBee组成的无线传感器网络和GPRS无线通信技术构成大范围远程温湿度数据采集系统,进行了硬件和软件的相关设计,并仿真验证其合理性和可实现性。该设计可以实现土壤墒情的自动检测和智能化节水灌溉,有利于促进农业现代化的发展。 相似文献
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温湿度对于温室大棚农作物的生长具有重要意义,因而良好的温湿度采集监控系统具有很高的实用价值和经济利益。本系统以DHT11湿度采集器、DS18B20温度传感器,GY-30光照传感器,NRF24L01无线通信模块、自动控制端和上位机为核心,设计出新型全智能温湿度采集监控系统,具有精确温湿度和光度的移动多点采集,即时无线通信和PC终端监测等特点。 相似文献