G - Physics – 05 – D
Patent
G - Physics
05
D
341/38.2
G05D 7/06 (2006.01) A01C 7/10 (2006.01)
Patent
CA 1065447
Abstract of the Disclosure The embodiment of the invention disclosed herein is directed to a controlled population monitor which controls the population density of seeds delivered from a dispensing hopper to furrows formed in a field. Seed dispensing apparatus associated with the hopper direct seeds toward the ground and includes seed-sensing apparatus for sensing the seeds actually delivered to the furrow, and to produce a signal corresponding to the number of seeds sensed. A distance sensor is provided for producing pulses corresponding to the linear distance travelled which are modified for producing pulses corresponding to the distance traveled times the width between rows. The pulses produced by the seed sensor and the pulses produced by the distance sensor are compared to determine whether or not the desired population density is being obtained. Should the population density deviate from that desired, the planting apparatus is automatically adjusted to either increase or decrease the number of seeds delivered to the furrows. This will allow constant density of seed population to be maintained regardless of changes in planter efficiencies.
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