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首页> 外文会议>IFIP(International Federation for Information Processing) TC 12 International Conference on Computer and Computing Technologies in Agriculture(CCTA 2007); 20070818-20; Wuyishan(CN) >DEVELOPMENT OF DGPS GUIDANCE SYSTEM FOR AGRICULTURAL MACHINERY
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DEVELOPMENT OF DGPS GUIDANCE SYSTEM FOR AGRICULTURAL MACHINERY

机译：农业机械DGPS制导系统的研制

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摘要

The purpose of this research was to develop a kind of light bar parallel guidance system based on DGPS for small agriculture machinery. This system consists of field computer, light bar and DGPS. The field computer is developed using PC/104 CPU module, running on which the embedded realtime operation system was customized by a special development tool. Single chip and CAN controller was selected for guidance light bar design, which use a row of indicator LEDs to guide drivers. Field computer and guidance light bar communicate with each other by using CAN bus. The guidance software running on the field computer was designed in object-oriented manner by integrating embedded GIS development kit. Field-testing and experiments have been done to evaluate the accuracy of the system with Trimble AgGPS 132 under different speeds, application width and light bar sensitivity, and the average of offline distance was 0.4517 meter. Results show this kind of guidance system is suitable for small-size machinery and can meet the need for parallel swath guidance for different kinds of field operation.
机译：这项研究的目的是为小型农业机械开发一种基于DGPS的灯条平行制导系统。该系统由现场计算机，灯条和DGPS组成。现场计算机是使用PC / 104 CPU模块开发的，运行时可以通过特殊的开发工具定制嵌入式实时操作系统。选择单芯片和CAN控制器进行导光条设计，该导光条使用一排指示灯LED来指导驱动器。现场计算机和导航灯条通过CAN总线相互通信。通过集成嵌入式GIS开发工具包，以面向对象的方式设计了在现场计算机上运行的指导软件。已经进行了现场测试和实验，以评估Trimble AgGPS 132在不同速度，应用宽度和灯条灵敏度下系统的准确性，平均离线距离为0.4517米。结果表明，这种制导系统适用于小型机械，可以满足不同田间作业对平行条带制导的需求。

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