胶接过程的智能控制

介绍一个兼有ＰＩＤ和专家系统之优点的智能温度控制器在复合材料胶接过程控制系统中的应用，其效能通过实际运行结果加以说明。     

Standardizing signs on public information in the New Coastal Area

The public information signs( The term public information signs will be abbreviated to public signs in the following text.)in the urban areas not only offer convenience for people to move around, but also reflect the level of development and progress of those areas. It is essential to the creative development and uplifting of the New Costal Area (thereafter, NCA) to have a good understanding of its present situation with regard to its public signs, to discuss the related issues in the development, to work out a system that is up to international standard and develop its own standards in the course of implementing the national strategies on standardizing public signs.     

SQ35切丝机刀辊防尘系统的增压改进

SQ35切丝机在切丝过程中存在刀辊内腔积尘较多的问题,主要是由于刀辊体的防尘系统密封不好以及刀辊内腔与外界存在压差。通过对刀辊防尘系统进行增压改进(包括系统的结构、气路设计以及刀辊外部密封装置的改进),有效地解决了刀辊内腔积尘的问题,使传动装置能够在相对清洁的环境内运转,从而提高了设备使用寿命和烟丝质量。     

Multi-Sensory Motion Estimation and Control of an Autonomous Quadrotor

In this paper, a fully autonomous quadrotor in a heterogeneous air–ground multi-robot system is established only using minimal on-board sensors: a monocular camera and inertial measurement units (IMUs). Efficient pose and motion estimation is proposed and optimized. A continuous-discrete extended Kalman filter is applied, in which the high-frequency IMU data drive the prediction, while the estimates are corrected by the accurate and steady vision data. A high-frequency fusion at 100 Hz is achieved. Moreover, time delay analysis and data synchronizations are conducted to further improve the pose/motion estimation of the quadrotor. The complete on-board implementation of sensor data processing and control algorithms reduces the influence of data transfer time delay, enables autonomous task accomplishment and extends the work space. Higher pose estimation accuracy and smaller control errors compared to the standard works are achieved in real-time hovering and tracking experiments.     

Predicting lifetimes of components in power station engineering plant

Abstract

Today, there is an increasing demand for power station plant to be operated cost effectively and to reliably maintain required electrical supply. This requires minimising the risk of having to shut down the plant for emergency repairs. Of paramount importance is plant operating integrity and well prepared and executed maintenance programmes. The present paper reports on the recent developments to the auto-reference creep management and control system used by E.ON UK. This includes achieving biaxial strain measurement with increased resolution and the employment of digital image correlation.