Design Of Intellectualized Irrigation Controlling System Of Low Power Consumption

It needs water very much in China, but water is used widely in agriculture.The current biggest drought of five provinces in southwest of China gives us an alarm for saving water. So efficient auto-control water-saving irrigation technology can not only save water and energy, but also is the milestone of agriculture modernization. The possessive ratio of implementing automatization in domestic farmland irrigation and automatization level are low, partly having economic condition use American irrigating control systems of Rainbird and Hunter series, others entirely rely on manual and self-experience to control irrigation. Most import production has achieved complete automation in irrigation control and have profect function, their disadvantage is big consuming energy in long-playing irrigation with external alternating current of 230 V; Dely on experience to control irrigation can not consult water capacity of soil and needing water capacity of crop to implement irrigation scientifically, it will waste water definitely. Based on above problems, this paper designs a intellectualized irrigation and collection controller of low consumption based on singlechip MSP430 serie of ulter-low consumption, the main intention of this system design are reducing power consumption, combining with sensors to monitor environmental parameters real time, achieving scientific irrigation and entirely automatic irrigationIt expatiates the system's function characteristics and design principles. This system uses solar energy to provide needful power for irrgation control, according four kinds sensors to get environmenral condition and soil water capacity, implements irrigation scientifically, in order to save water and energy.The main work of this paper includes:(1) Consult relevant literatures, internal and overseas datas of relevant product, to analyze, discuss and summarize domestic and overseas actuality of agricultural irrigation system, based on it to discuss research background of this item, and to understand electrification principle of solar energy, use instance and research actuality, and make requirement analysis or this project.(2) Formulate the overall design scheme for this system. The system is divided into three parts: power supply section, data collection and control output part. Power supply section uses solar energy to charge up for lithium battery according to power managing chip, secondly transforms into needed voltage of each module; it can collect datas of four pathways sensors, according to AD conversion and comparison with previous setting parameters in order to institute irrigating strategy; control output part includes LCD displaying work state at real time and valves control section.(3) The system hardware circuit design. Including selection of hardware chips, part circuit schematic design, jointing circuit board and hardware test.(4) The system software program design. Including writtting bottom drive, key control subprogram, LCD displaying subprogram, datas conversion subprogram, datas storage subprogram, clock and valve control subprogram.(5) Summarize this paper. Point out that the problems existing in the design and the next work.