【作者】 葛晓锋；

【导师】 何勇；

【作者基本信息】 浙江大学 ， 农业机械化工程， 2003， 硕士

【摘要】 从20世纪80年代以来，以计算机技术、光纤和卫星通信技术为特征的信息化浪潮席卷全球，信息化成为衡量一个国家现代化水平和综合国力的重要指标。我们知道，农业现代化是我国社会主义现代化建设的重要战略目标，其本质是农业的科学技术化，即以现代科技及其应用技术装备农业，从而推动我国农业由传统农业向现代农业转变。目前，一方面，要依靠现代科学知识，建设牢固的现代农业基础，争取早日实现农业现代化；另一方面，要迎接世界知识经济时代的挑战，开展新的农业科技革命，发展信息农业，推进农业信息化进程。 本文就针对时代的特征，把GPS技术、GIS技术、DSS技术以及传感器技术等结合成一个有机的整体，并应用到农田信息决策系统的各个方面，取得了较理想的结果。 本论文的主要研究内容包括： (1)研制仪器设备 在本课题的研究过程中，为了给农户提供获取农田信息的仪器，我们开发研制了农田信息快速定位测试仪。这套仪器与传统仪器相比，具有测试速度快、测试精度高、能实时测量以及具有定位信息等特点，解决了目前在获取农田信息时难以定位的问题。 (2)SWR型土壤水分传感器的试验分析 由于农田信息繁多，不能一一研究，故笔者只对菜地、田间、砾石地分别进行了土壤含水量试验，获取了试验数据，并绘出了不同土质的试验曲线图。试验结果表明：1)SWR型土壤水分传感器具有较高的精度和较大的实用价值；2)对于不同土质、不同的土层深度，土壤含水量都是呈规律变化的。同时，还用该仪器从平面与截面这两个方向测量了土壤含水率，并用Arc view软件进浙江大学硕士论文 中文摘要行了距离反比法插值分析，取得了较好的结果。 ＊）GPS定位试验分析 在本课题中，把GPS与GIS技术应用到农田信息是比较重要的内容，因此笔者利用Magellan公司的G PS3 10与GPS315做了一系列试验。主要的试验包括GPS3 10定点精度试验、GPS315相对定位试验、GPS310区域面积计算试验。同时，为了有效地计算区域面积，本文还提出了一种实时面积计算方法，具有较好的实用价值。 O）农田信息决策系统的开发 本论文的核心部分是农田信息决策系统的设计和开发。整个系统以第1章～第6章介绍的理论和方法为基础，继承了传统信息系统的“农田信息系统一各模块一具体各模块功能”的基础结构，添加了GPS、GIS、DDS等特殊功能。因此整个系统相对子传统农田信息系统功能更齐全、更完善，这为今后有效地进行农田管理指明了方向。更多还原

【Abstract】 Since 20th century 1980s,information tidal wave fills the whole globe base on computer technology fiber and secondary planet communicate technology,information level become important sign which weighs a country’s modernization level and synthesis national power. Agriculture modernization is important compose part of socialism modernization building in our country,its essence is science technology of agriculture,which is equipping agriculture by modern times science and technology and its application,accordingly drive our country agriculture transformation form tradition agriculture to modern times agriculture. In the present age,on the one hand,we should depend modern times science technology,building firm modern times agriculture basic,strive for realizing agriculture mechanization earlier;On the other hand,we should receive challenge of the world economy age,develop new agriculture science and technology revolution,develop information agriculture,push agriculture information course.This paper aim at characteristic of age,combine a whole by GPS technology,GIS Technology,DSS Technology and sensor Technology,and apply some facets of cropland information decision-making system,the result is very good.The main research content of this paper including:(1) Develop instrument equipmentIn research course of this problem,penman and doctor qiu develop a cropland information speediness decision-making testing instrument in order to prevail cropland information. This new instrument have test-speed-rapid,test-precision-high,real -time-test,and can test orientation-information compare to tradition instrument. It can problem of orientation difficulty when prevail cropland information at present.(2) Experiment analysis of SWR soil moisture sensorBecause of cropland information excessive,can’t experiment everyone,penmanprocess soil containing water or moisture data experiment to vegetable terras cropland and gravel,prevailed experiment data,and draw experiment curve drawing of differ soil. The results turned out to be:1) SWR soil moisture sensor have higher precision and stronger practical value .2) Different soil and different soil depth,soil containing water or moisture data is disciplinarian transform. Meanwhile,Using this apparatus measured soil containing water data from plane and section,and using software Arc view insert value analyzed by distance inverse ratio measure,the result is very good.(3) The study of GPS orientation experimentIn this paper,penman do some experiments by GPS310 and GPS315.The main experiment including:GPS310 odd spot experiment > GPS315 relative orientation experiment GPS3 10 area experiment. Simultaneity,this paper advanced a means of real time calculate area in order to calculate area effectively,it have some utility value.(4) The project of cropland information decision-making systemThe core of this paper is develop and design of cropland information decision-making system. The whole system base on theory of charter one to charter six,inherited basic structure of tradition information system,appended GPS GIS DSS especial function. It can the whole system function more perfect,designated cropland manage aspect henceforth effectively.更多还原