Some problems of investigation of tractor guidance system and seeder of precision farming using GPS are discussed. A tractor guidance system is developed to support the operator to control the tractor trucking the target line in the field for plowing, fertilizing, pesticide spraying, sowing, harvesting, manuring ,etc. In the system, an alternative integration solution basing on standard 2 Kalma...

The working parameters of the pneumatic sprayer, such as sprayer's attitude, airflow, and spraying amount, have an impact on evenness seed distribution during process vegetation restoration degraded grasslands . This article focuses 4BQD-40C sprayer analyzes forward speed, airflow velocity at inlet, frequency swinging nozzle quality. conclusion shows that: 1) equation trajectory was obtained, l...

In this study, we developed a multi-wavelength terahertz-wave parametric generator that operates with only one injection seeding laser. Tunable lasers used as an seeder must be single-frequency oscillators, and conventional requires basically the same number of wavelengths. order to solve problem, new external cavity semiconductor laser incorporates DMD in its wavelength-selective mechanism. pr...