Research Of Intelligent Measure-Control System Of Greenhouse

Facilities agriculture is a new agricultural industry in the 21th century. Greenhouse is one of the typical representations. At present, main hardware in greenhouse can be self-supported in our country, but the monitoring and controlling system is mostly imported, and there are many problems in both quality and efficiency. What's more, it can not suit the situation of our country. So the solution to the problems becomes requisite. The thesis puts emphasis on the system working principle, hardware and software. It can measure, gather and display the parameters automatically after the system is finished. Based on the test results, the system controls the manipulative machines. It regulates and controls greenhouse environment in order to fit the crop's need.The system's design has two parts: hardware design and software design. The scheme is established basing on a lot of demonstration and field survey. The contents include the followings: the decision of the system control blue print as a whole which includes the parameters that's needs measuring, the amount of manipulative machines, the info that needs feeding back and so on; Realizing the reasonable matching among hardware and software; The designation of hardware which includes the designation for CPU control board, A/D conversion board, keyboard and display board, power output board and so on. The hardware system selects STD standard bus and module frame; the designation of software which includes the designation for main program, A/D conversion program, keyboard displaying program and so on. The system selects assembly language, and select module frame and subprogram programming mode. The subprograms connect by the software interface; The designation for all-sided anti-jamming on hardware and software which includes the making of circuitry plate, the laying of lines, the design of power and so on; the designation for control box. The control box has three parts which includes microcomputer system, relay system and strong electricity system; the disposal of testing results.The system has a favorable operating environment and friendly interface, and is reliable, safe, simply operation, etc. It lays a technical foundation for realizing control system design and has good social and economic benefit.