Development of singlechip based laser leveling controlsystem

摘要

Land leveler with laser leveling control system not only reduces the work in cropestablishment and management, but also reduces the amount of water required for normalgrowth, and increases the yield, and improves the quality and so on. However, for the uncertaintyand nonlinearity of plant to be controlled, it is difficult efficiently to control using classical control.The laser leveling control system with singlechip not only can replace of all functions of traditionalleveling machine controller, but also realizes the complex intelligent algorithm, such as fuzzycontrol. So, the singlechip based laser leveling control system has been presented. The systemincludes three parts: the laser transmitter, the laser receiver and the control box. The paperpresents mainly the details of the laser receiver and the control system, and realizes a complexintelligent control algorithm. The laser receiver, which is the key for the control system, includesoptical sensor, high frequency weak signal processing circuit, signal output circuit. The controlsystem was realized using 80C51 single-chip computer and fuzzy control algorithm. The levelingfield experiment in Beijing and in Guangzhou shows that the system realized functions of controlsuccessfully.