Artificial Climate Chamber Wireless Monitoring And Control System Research And Design

Glasshouse is a kind of experimentation equipments which is largely used in environment tests and science research field, such as planting, cultivating, biology works. It can imitate all kinds of climate circumstances, accurately control the indoor temperature, moisture, sunlight, CO₂ according to the requirements, to achieve all kinds of climates.An intelligent wireless control system of glasshouse which uses AT89C51 as the kernel is introduced in this paper. It can not only achieve the measurement display of temperature, moisture, sunlight, CO₂ parameters in glasshouse, but also complete outputting the controlling signals convenient for local and remote controls. All data is conserved by itself and transmitted to the center computer. Data analysis, display, and curves, report forms meters printed is completed in system center. The whole system is configured lively and cheaply, with high reliability and stability.A concentrate and distract control project is used in the controlling part of the system. The system adopts three layers controlling to achieve system's reliability. PC processor is taken the place of AT89C51 in all controllers. The communications between the distract controllers and main controller are attained by traditional RS-232. Wireless communication is achieved between the main controller and system center by using the HAC-uM series Bluetooth transmitting module, so as to greatly reduce the works and the fund. When designing the glasshouse system, multi-value controlling method and fuzzy controlling are employed to make the impacts between the controlled parameters lest, considering for the complication, nonlinear and uncertainty of the impacts. At last, using VC++ software, convenient and beautiful interfaces are designed upon the system center PC to control and administrate the system's parameters.