计算机信息处理技术在OA中的应用

着重从计算机信息处理技术的进步给办公自动化带来的影响,以及其在办公自动化中的广泛应用进行相关的阐述。     

自动化学科面临的挑战

本文分析了控制理论与应用、模式识别与智能系统、导航制导与控制、系统科学与工程、人工智能与自动化交叉等领域的发展现状. 结合科技发展、国内国际研究前沿和新兴领域对自动化科学技术的需求, 提出重点发展智能控制理论和方法、高性能作业机器人、信息物理系统、导航与控制技术、重大装备自动化技术、自主智能系统和人工智能驱动的自动化技术优先领域, 加强数据驱动控制理论、人工智能基础理论研究, 进一步发展人机协同、跨域融合的智能自动化, 为实现国家社会的全面信息化智能化提供理论和技术保障.     

LearningADD: Machine learning based acoustic defect detection in factory automation

Defect inspection of glass bottles in the beverage industrial is of significance to prevent unexpected losses caused by the damage of bottles during manufacturing and transporting. The commonly used manual methods suffer from inefficiency, excessive space consumption, and beverage wastes after filling. To replace the manual operations in the pre-filling detection with improved efficiency and reduced costs, this paper proposes a machine learning based Acoustic Defect Detection (LearningADD) system. Moreover, to realize scalable deployment on edge and cloud computing platforms, deployment strategies especially partitioning and allocation of functionalities need to be compared and optimized under realistic constraints such as latency, complexity, and capacity of the platforms. In particular, to distinguish the defects in glass bottles efficiently, the improved Hilbert-Huang transform (HHT) is employed to extend the extracted feature sets, and then Shuffled Frog Leaping Algorithm (SFLA) based feature selection is applied to optimize the feature sets. Five deployment strategies are quantitatively compared to optimize real-time performances based on the constraints measured from a real edge and cloud environment. The LearningADD algorithms are validated by the datasets from a real-life beverage factory, and the F-measure of the system reaches 98.48 %. The proposed deployment strategies are verified by experiments on private cloud platforms, which shows that the Distributed Heavy Edge deployment outperforms other strategies, benefited from the parallel computing and edge computing, where the Defect Detection Time for one bottle is less than 2.061 s in 99 % probability.     

Introducing autonomous aerial robots in industrial manufacturing

Although ground robots have been successfully used for many years in manufacturing, the capability of aerial robots to agilely navigate in the often sparse and static upper part of factories makes them suitable for performing tasks of interest in many industrial sectors. This paper presents the design, development, and validation of a fully autonomous aerial robotic system for manufacturing industries. It includes modules for accurate pose estimation without using a Global Navigation Satellite System (GNSS), autonomous navigation, radio-based localization, and obstacle avoidance, among others, providing a fully onboard solution capable of autonomously performing complex tasks in dynamic indoor environments in which all necessary sensors, electronics, and processing are on the robot. It was developed to fulfill two use cases relevant in many industries: light object logistics and missing tool search. The presented robotic system, functionalities, and use cases have been extensively validated with Technology Readiness Level 7 (TRL-7) in the Centro Bahía de Cádiz (CBC) Airbus D&S factory in fully working conditions.     

基于OPC UA的数据交互中间件的研究

针对基于DCOM配置的OPC数据集成方式存在配置复杂、需要更改防火墙或网闸设置等问题,设计了一种基于OPC UA的数据交互中间件,介绍了该中间件的结构及功能。该中间件实现了即插即用,只需通过简单配置,就可以跨越防火墙/网闸与OPC服务器进行安全的数据交互,可适用于大多数煤矿自动化子系统OPC服务器的数据集成。     

架空乘人装置用隔爆兼本安型控制箱的研制

针对采用继电器控制方式控制架空乘人装置存在维护困难、工作效率低、安全性能差等问题,提出了一种基于PLC控制的架空乘人装置用控制箱的研制方案,介绍了该控制箱的硬件、软件设计及功能特点。该控制箱采用PLC作为控制核心、MT6070I系列触摸屏作为人机界面,实现了架空乘人装置及时停车、急停闭锁、状态及时显示、保护等功能。实际应用表明,该控制箱运行稳定,实现了全自动无人值守运行,提高了架空乘人装置的安全性和可靠性。     

钱家营煤矿矿井综合自动化系统的改造

针对钱家营矿综合自动化系统存在仅以信息集成为主、服务器配置落后、无法实现智能调度、集中监控等问题,提出了系统改造原则,详细阐述了系统环网、调控中心和软件平台的改造与实施。改造后系统在注重信息采集和处理的同时,也注重对信息进行综合处理及生产和安全自动化系统的联合监测监控,实现了矿井综合自动化系统的五融合。     

开源自动化控制软件Sedona在物联网中的应用

通过讨论物联网的现状、关键技术及发展方向,主要介绍了一种开源自动化控制软件Sedona在物联网的应用技术,包括在物联网架构中如何进行软件开发和应用程序设计,并介绍了该架构的技术特点。Sedona语言是一种通用的面向组件化的编程语言。Sedona虚拟机是一个小型解析器,具有良好的移植性,内嵌多种通信协议,可以运行在任何基于IP通信的网络上。最终实现各设备之间集中控制、分散管理的目标。     

Automatic optical inspection of plated through-holes for ultrahigh density printed wiring boards

An automatic optical through-hole inspection system for ultrahigh density printed wiring boards (PWBs) using leakage light detection has been developed. To detect the dim leakage light emitted from the through-hole defect, we enhanced the sensitivity of the light detector 150 times using a microchannel plate tube. However, the tube caused two problems: stray light sensing and image distortion. To solve these problems, we optically isolated the sensing optics and developed a distortion correction method. We have developed a prototype system that can detect a defect as small as 100 m.     

办公自动化系统实施中的问题及其解决策略研究——以X公司为例

本文以X公司为例,对其办公自动化系统实施过程中遇到的各种问题进行探讨、分析,并提出解决思路。以期能促进该公司系统的实施,并对其它组织办公自动化系统的实施起到借鉴作用。