Seeding rate on-line monitoring device based on linear array CCD

Abstract

The invention discloses a seeding rate online monitoring device based on a linear array CCD. The device is composed of a monitoring device shell, a parallel light source, a condensation convex lens and a linear array CCD. The monitoring device shell is provided with a seed channel along the vertical direction; the parallel light source and the condensing convex lens are oppositely mounted on the two sides of the seed channel; the linear array CCD is mounted on the other side, opposite to the seed channel, of the condensing convex lens; parallel light forms a monitoring plane perpendicular to aseed channel, the parallel light in the monitoring plane is gathered to an effective photosensitive area of a linear array CCD through a condensing lens, seed monitoring and counting are achieved bymonitoring the light intensity change of a photosensitive element on the linear array CCD, and therefore the seeding rate of the seeding machine is monitored. Compared with the prior art, the device has the advantages that the number of sensitive elements is large, no monitoring blind area exists, small-size seeds can be monitored, and the situation that multiple seeds fall down at the same time can be monitored.

Description

technical field [0001] The invention relates to the technical field of seeding amount monitoring of seeders, in particular to an on-line monitoring device for seeding amount based on a linear array CCD. Background technique [0002] The development of precision agriculture is conducive to reducing resource waste, protecting the environment and promoting sustainable agricultural development. Precision sowing is an important link in precision agriculture, which can reduce seed waste, increase crop yield, and increase economic benefits. As an important part of precision sowing, variable sowing is an automatic control system that automatically adjusts the amount of seeding according to the amount of seed used in different plots. Most of the existing seeders use mechanical seed metering devices, and the sowing process is carried out under fully enclosed conditions. The operator cannot grasp the actual seeding rate of the seeder and adjust the seeding rate. When there is a fault...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to propose a linear array CCD-based sowing device for the problems that existing seeding rate monitoring devices have monitoring blind spots, are prone to missed detection, are difficult to monitor small-sized seeds, and are difficult to monitor the simultaneous falling of multiple seeds. Quantity online monitoring device

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