Research On Monitoring System Of Planting Quality For Drill

Coversation tillage is called a world's agricultural revolution , and new technique in agriculture mechanization which agricultural department mainly generalize. It haves remarkable benefit of economy ,society and zoology, such as keeping entropy and enhancing soil fertility , reducing erode of water and wind , restraining sand dust devil , decreasing working procedure , depressing task cost and increasing farmer's income and so on . At present, the core that conversation tillage technique is popularized and applied is no-tillage drill . Bring forward higher demand for realizing no-tillage of dry land agriculture in the north owing to particularity of conversation tillage such as the earth's surface covered straw and stubble of underground, etc. So, stand or fall of no-tillage drill performance is determinant of realizing no-tillage seeding , while one of the important measure of achieving no-tillage seeding is using monitor system to detect work of no-tillage drill ,in addition to ensure performance and quality of machine. Using of no-tillage planter exist in difference because different area have distinction of themselves in geography condition and entironment . In order to ensuring seeding quality , equip the monitoring system for 2BMFS-5/10 type no-tillage mulch fertilizing planter .It aims to monitor missing seeding caused by blocking in seed tube or furrow opener and avoids this phenomenon. Thus ,using infrared LED as detection element, and adopting transistor and operation amplifier etc. integrate circuit to form detection circuit, which divides a signal into two components-the impulse that indicates normal seeding, and the background direct current, then amplifies them respectively with different amplification coefficients, finally merges them into one signal to analyze. This method can increase the contrast between the impulse and the direct current, meanwhile it works well in high-dust circumstance . During the process of seeding, alarm will be given once there is the phenomenon of a missing seed or blocking, so that work efficiency and planting quality is greatly improved . The tests indicate that this monitor system can commendably accomplish the detection of work condition of seeding tube, meanwhile be the same with wheat and corn .And it haves steady work state, high monitoring precision , especially works well in high-dust circumstance and rather perfect ratio of performance and price.