一种云服务模式下测控一体化农田小型水闸的研发
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摘要
针对目前农村小型明渠灌溉水闸控制精度不高、自动化控制水平低等问题,设计了一种云服务模式下测控一体化、无线远程遥控的太阳能小型水闸。采用旋转式阀芯结构,分析了在不同上游水位情形下水闸有效开度的计算方法;基于ARM开发了本地嵌入式控制系统,完成水闸水位、开度等运行状态数据采集;利用云服务器,建立数据中心,实现了水闸与云端之间的数据交换;建立了带执行偏量因子的水位模糊控制模型,以提高开度控制精度;开发了水闸远程测控云平台,对不同配置的用户终端设备远程控制水闸开度的精度和响应时间进行了测试实验。结果表明:水闸云平台运行稳定,最大开度控制误差为1.1 mm,最大响应时间为0.6 s。
In order to solve the problems of low control accuracy and low level of automatic control of small open channel irrigation in rural areas,a solar integrated micro sluice with remote wireless measurement and control is proposed under cloud service mode. The mechanical structure of the rotary sluice is adopted,and the calculation method of effective opening under different upstream water levels is analyzed. A local embedded control system is developed based on ARM to acquire running state data of the sluice including the water level and opening.Data center is built on the cloud server to realize data exchange between sluice and cloud server. A model of water level fuzzy control with deviation factor is established to improve the accuracy of the opening control of the sluice. The remote measurement and control cloud platform for sluice is developed. The accuracy and response time of remote control are tested by using different configuration user terminals. The results show that maximum opening error is 1.1 mm,the maximum response time is 0.6 s.
In order to solve the problems of low control accuracy and low level of automatic control of small open channel irrigation in rural areas,a solar integrated micro sluice with remote wireless measurement and control is proposed under cloud service mode. The mechanical structure of the rotary sluice is adopted,and the calculation method of effective opening under different upstream water levels is analyzed. A local embedded control system is developed based on ARM to acquire running state data of the sluice including the water level and opening.Data center is built on the cloud server to realize data exchange between sluice and cloud server. A model of water level fuzzy control with deviation factor is established to improve the accuracy of the opening control of the sluice. The remote measurement and control cloud platform for sluice is developed. The accuracy and response time of remote control are tested by using different configuration user terminals. The results show that maximum opening error is 1.1 mm,the maximum response time is 0.6 s.
引文
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[7]张葆青,闫石,陈爽.机电一体化技术的现状与发展趋势[J].机床与液压,2011,39(24):105-106,121.
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[10]崔巍,陈文学,郭晓晨,等.明渠调水工程闸前常水位运行控制解耦研究[J].灌溉排水学报,2009,28(6):9-13,29.
[11]李毅佳.节制闸调控下明渠输水系统水力特性研究[J].中国农村水利水电,2017,(5):46-57.
[2]Habibzadeh A,Vatankhah A R,Rajaratnamn N.Role of energy loss on discharge characteristics of sluice gates[J].Journal of Hydraulic Engineering,2011,137(9):1 079-1 084.
[3]吴润兰,谢崇宝,高虹,等.测控一体闸测流精度校验与分析[J].中国农村水利水电,2011,(8):124-131.
[4]李臣明,赵丽华,吴学文,等.基于水位、流量预测信息的水闸群调节方法[J].灌溉排水学报,2015,34(3):70-74.
[5]张从鹏,罗学科,李玏一,等.面向灌区调水工程的远程自动计量闸门研究[J].农业机械学报,2014,45(8):172-177,275.
[6]王斌锋,苏金树,陈琳.云计算数据中心网络设计综述[J].计算机研究与发展,2016,53(9):2 085-2 106.
[7]张葆青,闫石,陈爽.机电一体化技术的现状与发展趋势[J].机床与液压,2011,39(24):105-106,121.
[8]LIN C H,YEN J F,TSAI C T.Influence of sluice gate contraction coefficient on distinguishing condition[J].Journal of Irrigation and Drainage Engineering.2002,128(4):249-252.
[9]王英华,陈晓东.水工建筑物[M].北京:水利水电出版社,2010.
[10]崔巍,陈文学,郭晓晨,等.明渠调水工程闸前常水位运行控制解耦研究[J].灌溉排水学报,2009,28(6):9-13,29.
[11]李毅佳.节制闸调控下明渠输水系统水力特性研究[J].中国农村水利水电,2017,(5):46-57.