该文将数字孪生技术应用于模块化生产系统(modular production system,MPS)的智能化改造中,构建了基于数字孪生的MPS实践教学平台。依托监控系统和虚实交互等关键技术,增加了MPS数字孪生体的虚拟建模、虚实联调和PLC程序软件在环/硬件...该文将数字孪生技术应用于模块化生产系统(modular production system,MPS)的智能化改造中,构建了基于数字孪生的MPS实践教学平台。依托监控系统和虚实交互等关键技术,增加了MPS数字孪生体的虚拟建模、虚实联调和PLC程序软件在环/硬件在环调试等实训环节;验证了MPS实践教学平台设计方案的可行性;制定了新的教学框架及详细的实训内容和考核方案。最后,将实训内容与大学生竞赛相结合,提高了学生对智能制造、工业生产的认知能力和实践动手能力。展开更多
针对一种下肢柔性助力机器人,开发了一种基于航姿参考模块(attitude and heading reference system,AHRS)设计的人体下肢运动学信息采集系统.该系统的AHRS具有体积小、功耗低的特点,便于通过绑带与人体保持紧致连接,并且能够长时间穿戴,...针对一种下肢柔性助力机器人,开发了一种基于航姿参考模块(attitude and heading reference system,AHRS)设计的人体下肢运动学信息采集系统.该系统的AHRS具有体积小、功耗低的特点,便于通过绑带与人体保持紧致连接,并且能够长时间穿戴,AHRS的设计融合了卡尔曼滤波算法(Kalman filter,KF)以提高数据的精度,多通道的数据通过ZigBee技术组建的无线传感器网络进行通信,并传输至上位机.然后,建立人体下肢运动学模型,推出AHRS测量角度和人体下肢姿态角度转换关系.同时,考虑在人体不同的步态活动下机器人助力的情况不同,设计了决策树分类器以对不同的步态活动进行识别分类,进一步地协助下肢柔性助力机器人对人体进行有效助力.在多种步态活动下,通过将该系统所采集的数据与Vicon系统采集的数据进行对比可知,该系统所采数据具有较高的精度,也验证了系统具有良好的稳定性及可靠性,另外利用大量的步态数据训练决策树分类器,并通过对未知步态活动进行的分类实验验证了步态识别的准确性.展开更多
A composite target seeker gyro with dual spectral range infrared rays and millimeter waves, and the associated control methodology are developed. The static pressure air floated ball bearing is used to sustain the ou...A composite target seeker gyro with dual spectral range infrared rays and millimeter waves, and the associated control methodology are developed. The static pressure air floated ball bearing is used to sustain the outer frame, the optical fiber and wave guide are used to transmit these two kinds of signals to the rear part of the gyro, and the stator coils are used to get non contact angular measurement. Composite guiding, scanning, tracing and controlling can be achieved, the maximum tracing angular velocity can be as high as 16(°)/s.展开更多
文摘该文将数字孪生技术应用于模块化生产系统(modular production system,MPS)的智能化改造中,构建了基于数字孪生的MPS实践教学平台。依托监控系统和虚实交互等关键技术,增加了MPS数字孪生体的虚拟建模、虚实联调和PLC程序软件在环/硬件在环调试等实训环节;验证了MPS实践教学平台设计方案的可行性;制定了新的教学框架及详细的实训内容和考核方案。最后,将实训内容与大学生竞赛相结合,提高了学生对智能制造、工业生产的认知能力和实践动手能力。
文摘A composite target seeker gyro with dual spectral range infrared rays and millimeter waves, and the associated control methodology are developed. The static pressure air floated ball bearing is used to sustain the outer frame, the optical fiber and wave guide are used to transmit these two kinds of signals to the rear part of the gyro, and the stator coils are used to get non contact angular measurement. Composite guiding, scanning, tracing and controlling can be achieved, the maximum tracing angular velocity can be as high as 16(°)/s.
