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PLC在车载天线控制系统中的应用 被引量:3
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作者 李波 李国栋 薛兴国 《机电工程》 CAS 2008年第12期23-26,共4页
应用可编程序控制器(PLC)与电机变频技术,提出了快速调整车载天线方向的构想与设计方法,研究了车载天线转动方向与PLC输出的驱动脉冲、传动减速比之间的关系,并提出了合理的减速比,使车载天线转动方向与脉冲串符合实际需求。综合运用PL... 应用可编程序控制器(PLC)与电机变频技术,提出了快速调整车载天线方向的构想与设计方法,研究了车载天线转动方向与PLC输出的驱动脉冲、传动减速比之间的关系,并提出了合理的减速比,使车载天线转动方向与脉冲串符合实际需求。综合运用PLC的传送、计算、比较等功能指令编程,控制变频器驱动脉冲的输出,可以保证车载天线准确变换方向,同时保持较高的定位精度。从目前国内相关技术应用情况来看,PLC在车载天线方向控制上的应用,能够充分发挥其系统配置灵活、安装操作简单、实现功能多等突出优点。 展开更多
关键词 可编程序控制器 车载天线 传动减速比 驱动脉冲
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Optimum Calculation of Partial Transmission Ratios of Mechanical Driven Systems Using a V-belt and a Two-Step Bevel Helical Gearbox
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作者 Vu Ngoc Pi Nguyen Thi Hong Cam Nguyen Khac Tuan 《Journal of Environmental Science and Engineering(A)》 2016年第11期566-569,共4页
This paper introduces a new study on the optimum calculation of partial transmission ratios of mechanical drive system using a V-belt and two-step bevel helical gearbox for getting minimum size of the system. In the p... This paper introduces a new study on the optimum calculation of partial transmission ratios of mechanical drive system using a V-belt and two-step bevel helical gearbox for getting minimum size of the system. In the paper, based on moment equilibrium condition of a mechanic system including V-belt and a two-gear-unit of the gearbox, models for optimum calculation of the partial ratios of the V-belt and the gearbox were proposed. As the models are explicit, the partial ratios can be calculated accurately and simply. 展开更多
关键词 Transmission ratio gearbox design optimum design helical gearbox.
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