| 基于掌上电脑的农田信息快速采集与处理系统的研究 |
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| 引用本文： | 方慧,何勇.基于掌上电脑的农田信息快速采集与处理系统的研究[J].农业工程学报,2004,20(6):124-128. |
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| 作者姓名： | 方慧 何勇 |
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| 作者单位： | 浙江大学生物系统工程与食品科学学院,杭州,310029 |
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| 基金项目： | 国家自然科学基金资助项目(30270773)；高等学校优秀青年教师教学科研奖励计划资助项目；浙江省自然科学基金资助项目(301270)；浙江省自然科学基金人才基金资助项目(RC02067) |
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| 摘 要： | 为了解决精细农业中空间信息及属性信息的快速获取与分析处理问题，提出并实现了基于掌上电脑的农田信息快速采集与实时处理系统。分析了具体实现系统功能的若干关键技术，如地理信息系统(GIS)、空间索引、Windows CE数据库技术、采样控制等因硬件环境的不同而产生的问题及相应的解决方案，又针对农场环境下的特殊性，提出并实现了一个面向对象的农场模型，以便于更好的描述农场环境及更方便的确定采样方案。作为一种实时系统，该系统可结合全球定位系统(GPS)和各种传感器，快速地测量和分析农田信息。应用该系统对两种GPS(Ag132与MAP330)进行了精度比较试验，快速而方便地证实了Ag132有更好的精确性与稳定性，更适于农业生产要求。试验的过程与结果也间接表明了该系统具有较好的实用性，为精细农业田间信息快速采集和处理设备的研制与开发奠定了基础。
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| 关 键 词： | 农田信息采集 掌上电脑 实时处理 存取方法 GIS GPS |
| 文章编号： | 1002-6819(2004)06-0124-05 |
| 收稿时间： | 2003/12/11 0:00:00 |
| 修稿时间： | 7/1/2004 12:00:00 AM |
Field information collection and processing system based on palm-sized personal computer |
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| Fang Hui and He Yong.Field information collection and processing system based on palm-sized personal computer[J].Transactions of the Chinese Society of Agricultural Engineering,2004,20(6):124-128. |
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| Authors: | Fang Hui and He Yong |
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| Abstract: | To quickly and effectively acquire and analyze field information,a Palm-sized Personal Computer(PPC) based field information fast collection and real-time processing system was designed. Compared with desktop computer, the operation system of this system is neticeably different in many aspects of system development and design, which is brought by windows CE OS. So the difference which was generated by the key technologies of the system, due to different hardware environments, was analyzed and debated. These key technologies include geographic information system (GIS), spatial access methods, database technology on windows CE, sampling control plan, etc. Based on the particularity of farms, an object-oriented farm model was developed to describe farm objects properly, to edit sampling plan conveniently and to conduct sampling control easily. As a kind of real-time system, the system can be used with global positioning system (GPS) and kinds of sensors to acquire and analyze field information instantly. The precision test of two GPS systems(AG132 and MAP330) was finished by the system. The result of experiment validated higher accuracy and stability of AG132 and more suitable to be used in precision farming. The experiment process and result also indicated good practicality of the system. The research and development of the system provided key technology for the development of equipment for precision farming field information fast collection and real-time processing. |
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| Keywords: | field information collection palm-sized PC real-time processing access method GIS GPS |
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