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Wu Caicong, Ma Chenglin, Zhang Shuhui, Yang Yinsheng, Sun Yujing, Han Yunxia. Method and application of making leaning field grid cell in precision agriculture[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2003, 19(1): 137-141.
Citation: Wu Caicong, Ma Chenglin, Zhang Shuhui, Yang Yinsheng, Sun Yujing, Han Yunxia. Method and application of making leaning field grid cell in precision agriculture[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2003, 19(1): 137-141.

Method and application of making leaning field grid cell in precision agriculture

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  • Received Date: June 02, 2002
  • Revised Date: November 07, 2002
  • Published Date: January 30, 2003
  • Based on "Research on the Method of Making Field Grid Cells by MapBasic in Precision Agriculture", which investigated the method of making orthogonal field grid cells in precision agriculture, this paper discusses the necessity, method and application of making leaning field grid cells in precision agriculture. Making leaning field grid cells is necessary because most of the fields in China are divided by protection forest. The directions of protection forest and field ridges are usually not parallel to local longitude or latitude. This method may get rid of the trouble and inconvenience caused by making orthogonal field grid cells, in that a few fragmentary grid cells around the field would come into being. The method of making leaning field grid cells consists of drawing by hand and drawing with the help of a computer program. When the base point of a field is reasonably selected, the grid cell making program developed by VB and MapX control can be used to making the grid cells of irregular field blocks. The chief applications of the field grid cells include sampling navigation, the creation of a thematic map and grid cell identification in the field. To identify field grid cells when fertilizing with an automatic variable rate fertilizer applicator, this paper studies the algorithm of identifying field grid cells for a single chip computer, its precision is up to decimeter grade. When a tractor works in another field, it only needs to update the field block parameters and fertilizer application rate in the IC card, which is used to save data, while the main program in the single chip computer does not need to be changed. Experiments of this spring show that the algorithm is simple, precise and universal.
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