Abstract:An intelligent control system was developed for the motor driven hose reel irrigator, for the purpose of improving the irrigator′s hydraulic performance, energy use efficiency, as well as realizing the automatic speed control of sprinkler cart, which would be a headache under water turbine driven system. The developed control system employed a high efficiency solar energy powered Brushless DC Motor(BLDCM)to drive the reel. A control system based on the single chip microcomputer MSP430F169 was developed to control the DC motor and detect the system status as well. The control system mainly consists of the solar charge controller, the BLDCM controller, the isolated power mo-dule, the motor voltage and current detect module, the battery capacity detect module, motor speed detect module, the reel speed and rotating layer detect module, and the microcomputer module. The solutions of each function module were described in detail, which combined to realize the automatic speed control of the sprinkler carriage and the operational parameters detection of the hose reel irrigator. The field test shows that this intelligent drive control system operates stable and the sprinkler car-riage can be drawn back in a set speed constantly. This proposed system is an effective fundamental technique for the variable rate irrigation research of hose reel irrigators.
[1]袁寿其, 李红, 王新坤. 中国节水灌溉装备发展现状, 问题, 趋势与建议[J]. 排灌机械工程学报, 2015, 33(1): 78-92. YUAN Shouqi, LI Hong, WANG Xinkun. Status,problems,trends and suggestions for water-saving irrigation equipment in China[J]. Journal of drainage and irrigation machinery engineering,2015,33(1): 78-92.(in Chinese)[2]汤跃, 朱相源, 梅星新,等. JP50卷盘喷灌机水涡轮水力性能试验[J]. 中国农村水利水电, 2014(2): 26-29. TANG Yue, ZHU Xiangyuan, MEI Xingxin, et al. Performance test of water turbine of JP50 reel sprinkler[J]. China rural water & hydropower, 2014(2): 26-29.(in Chinese)[3]MCCARTHY A, HANCOCK N, RAINE S. Holistic control system design for large mobile irrigation machines[M]. Machine vision and mechatronics in practice. Berlin: Springer Berlin Heidelberg, 2015: 177-184.[4]方正,徐晓辉,苏彦莽,等.农田节水灌溉计量控制系统的研究[J].江苏农业科学,2018,46(2):173-175. FANG Zheng,XU Xiaohui, SU Yanmang,et al.Study on metering control system of water-saving irrigation in farmland[J]. Jiangsu agricultural sciences, 2018, 46(2):173-175.(in Chinese)[5]DONG X, VURAN M C, IRMARK S. Autonomous precision agriculture through integration of wireless underground sensor networks with center pivot irrigation systems[J]. Ad Hoc Networks, 2013, 11(7): 1975-1987.[6]顾哲, 汤跃, 汤玲迪,等. 卷盘式喷灌机卷盘驱动负载计算与分析[J]. 农机化研究, 2015(8): 70-73. GU Zhe, TANG Yue, TANG Lingdi, et al. Calculation and analysis on load of hose reel irrigators[J]. Journal of agricultural mechanization research, 2015(8): 70-73.(in Chinese)[7]杨磊,汤跃,汤玲迪,等.电驱动卷盘式喷灌机驱动与控制系统[J].排灌机械工程学报,2018,36(8):690-695. YANG Lei, TANG Yue, TANG Lingdi, et al.Brushless DC motor drive characteristics and system for reel-type irrigator[J].Journal of drainage and irrigoution machinery engineering, 2018,36(8):690-695.(in Chinese).[8]王昌伟, 王瑞心, 朱德兰, 等. 平移式喷灌机太阳能驱动自动控制装置的研制[J]. 农机化研究, 2014, 36(8): 52-58. WANG Changwei, WANG Ruixin, ZHU Delan, et al. Development of automatic control device of translational sprinkling machine driven by solar energy[J]. Journal of agricultural mechanization research, 2014, 36(8): 52-58.(in Chinese)[9]李伟, 韩智雷, 邱志鹏,等. 一种节能电控卷盘式喷灌机CN103947514A[P]. 2014.