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With the increasing scarcity of water resources worldwide , the lack of water resources has become an important factor restricting the development of China's national economy . Farms of the Xinjiang Production and Construction Corps ( hereinafter referred to as the Corps) were located in the river downstream of the edge of the desert , drought and water shortage has been the main factors restricting the development of agricultural production and the Corps , and therefore the further development of the irrigated area must conserve irrigation water , develop agriculture water-saving technologies . Corps since the introduction of drip irrigation technology , after years of study , practice and explore ways to improve , and has created a state-of-the-art water-saving irrigation technology in micro-irrigation , subsurface irrigation , drip irrigation . In this paper, the problems of the Corps drip link cotton production process , design the drip process control system based on CAN bus , and anti-jamming system applications , in-depth research . Considering control scale and achieve cost factors , determine the IPC to control core , CAN bus communication network hardware system architecture , and the works of the various components of the device , the peripheral circuit with driver software and other issues in-depth and detailed the research , to build a hardware platform for the control system . The control system software features a meticulous division of the modular design concept , the preparation of the control system software . CAN intelligent modules between nodes , and the CAN interface of the host computer interactive communication , data acquisition and processing , irrigation control decisions , drive signal output function . Some typical sources of interference and impact associated with the system . In terms of hardware , hardware anti-jamming design of the system is important circuit ; limiting filtering software , the median value method , a first order lag filter method , the arithmetic mean of the four digital filtering algorithm is applied to the system , through the analysis of experimental data processing and interference suppression effect of contrast , the choice of a complex filtering methods used in irrigation systems and improve the stability and accuracy of the control system .
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