Field map generating system

A method of generating a field map pertaining to a crop in a field that is harvested by a traveling harvester, the method comprising:

• a step of obtaining position information of the traveling harvester over time;
• a step of obtaining crop data of the crop over time;
• a step of creating a polygon based on a travel state of the harvester at a time when each piece of the crop data is obtained, thereby producing a plurality of polygons;
• a step of assigning the obtained crop data to the corresponding polygon;
• a step of generating a field map for an entire field by aggregating the plurality of polygons;
• a step of estimating a plurality of index segments that divide the field;
• and
• a step of converting the field map into a post-conversion map in which the crop data is assigned to the index segments.

A field map generating system comprising:

• a data obtaining unit that, in a work vehicle that uses a work device to carry out agricultural work while traveling in a field, obtains, as obtained data, at least one of operation information, which is information pertaining to the operation of a machine, field information, which is information pertaining to the field, and crop information, which is information pertaining to a crop;
• a position information obtaining unit capable of obtaining data obtainment position information, which is position information of the work vehicle at a time when the obtained data is obtained by the data obtaining unit;
• a polygon constructing unit that constructs a polygon based on the data obtainment position information, a work width of the work device, and an obtainment timing of the obtained data by the data obtaining unit, thereby producing a plurality of polygons;
• a data assigning unit that assigns the obtained data to each polygon constructed by the polygon constructing unit;
• and
• a field map generating unit that generates a field polygon map, the field polygon map being an aggregate of the plurality of polygons, by aggregating the plurality of polygons,
• wherein if the data obtainment position information has not been obtained by the position information obtaining unit, the polygon constructing unit complementarily constructs a polygon corresponding to the timing at which the data obtainment position information was not obtained based on polygons corresponding to the timings before and after the timing at which the data obtainment position information was not obtained, and the data assigning unit assigns the obtained data corresponding to the timing at which the data obtainment position information was not obtained to the complementarily-constructed polygon.

A method of generating a field map pertaining to a crop in a field that is harvested by a traveling harvester, the method comprising:

• a step of obtaining crop data of the crop over time;
• a step of obtaining data obtainment position information of the harvester during travel when obtaining the crop data of the crop;
• a step of creating a polygon based on the data obtainment position information of the harvester at a time when the crop data is obtained, thereby producing a plurality of polygons;
• a step of assigning the obtained crop data to the corresponding polygon;
• if a polygon has not been created due to the data obtainment position information of the harvester not being obtained when the crop data is obtained, a step of complementarily creating the polygon that was not created;
• a step of assigning corresponding crop data to the complementarily-created polygon;
• and
• a step of generating a field map for the entire field by aggregating the plurality of polygons;
• wherein a polygon corresponding to the timing at which the data obtainment position information was not obtained is complementarily created based on polygons of the plurality of polygons corresponding to the timings before and after the timing at which the data obtainment position information was not obtained.