Design and Experiment of Seeding Monitoring System for Seed Drill
Qian Wei · 2010
To achieve real-time monitoring of working process of seed-metering device and improve sowing quality,the seeding monitoring system was established according to the structure of finger-type seed-metering device of no-tillage seeder.The monitoring devices adopted laser diode and convex lens as transmitter that transmit parallel beams,Photic port adopted the series circuit which was comprised by three light-sensitive diodes with 3mm interval,Corresponding installation structure was designed and dustproof device was added according the characteristic of seeding pipe.Regular seeding test and extreme seed flowing condition of seed pasting side wall of seeding pipe showed that the devices monitored accurately and the monitoring system was steady.