外文翻譯---無線傳感器網絡的實現(xiàn)及在農業(yè)上的應用-其他專業(yè)-文庫吧資料
2025-01-27 09:34本頁面
【正文】 n by a large number of sensor nodes randomly dispenser (the node), coordinated by the node and quickly set up their own munications work, under the principle of priority for energy efficiency division of work tasks for monitoring regional information .Selfanizing properties of the work when the node failure is reflected in the new node is added or when the work is capable of adaptive reestablished to adjust the overall detection accuracy, give full play to its advantages in resources, that is, each node in the work with data collected in addition both data forwarding function smultihop routing. Wireless sensor works posed of nodes in each category by the general data acquisition, data processing, data transmission and power the four parts. Each of microcontroller hardware and software design are the same. The design of the study design was only for a single chip system. Be monitored in the form of physical signals determines the type of sensor .Embedded processors are often used CPU, such as the MOTOROLA pany39。 附件 2：外文原文 The realization of wireless sensor works and applications in agriculture 1 Introduction Wireless sensor works (Wireless Sensor Network, WSN) are deployed in the monitoring area by the large number of lowcost micro sensor nodes, wireless munication through the formation of a multihop work selfanization. The aim is to perceive collaboration, collection and processing of work coverage in the perception of objects, and send observers. Sensors, sensing object and the observer, constitute the three elements of the work. Here that the sensor is not in the traditional sense of the simple perception of physical signals and the sensor into a digital signal, which is the sensor module, data processing module and wireless munication module integrated in a small physical unit, that is , enhanced features than many traditional sensors can not only be aware of environmental information, but also data processing and wireless munication capabilities. With the builtin sensor nodes in a variety of sensors, where the environment can measure heat, infrared, sonar, radar and seismic signals and other signals to detect temperature, humidity, noise, light intensity, pressure, soil position, moving object the size, speed and direction, and so many physical phenomena of interest to us. Wireless sensor work is a new mode of information acquisition and information processing. Because of the shortage of water resources are at a considerable degree, plus 90% of the waste, untreated sewage or handling standards for direct discharge of water pollution, water quality is lower than 11% of agricultural water supply standards. Water is the lifeblood of agriculture, is the controlling element of the ecological environment, but it is also strategic economic resources, extraction of groundwater by pump irrigation of farmland, rational use of water resources, development of water supply, improve the ecological environment in China is currently accurate Agriculture key, so use of irrigation
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