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This paper introduces fiber Bragg grating (FBG) based on a fiber optic grating sensor developed to be embedded on mechanical
equipment for digital monitoring and health diagnosis. The theoretical and experimental researches on the new-style FBG sensor
(FBGS) technology, high-speed demodulation, and data transmission are discussed. The transmission characteristics between
the FBG and the detection interface, modeling and compensation method for online distributed multi-parameter digital monitoring
and methods for data processing, synchronous sampling, and long-term dynamic digital monitoring using embedded technology
are also presented. The acquired information by an FBGS can be used for the optimization of maintenance schedules and refinement
of mechanical equipment design. It is a challenge to gather real-time data from components working at high speed and in a
severe environment of high temperature, high pressure, and high rotation speed. Currently, there are no sensors or technologies
available for digital monitoring and health diagnosis under this rigorous situation for use in mechanical engineering operation
safety. As a result, this paper introduces an online distributed and integrated digital monitoring system and health diagnosis.
The new principle and new method will contribute to modern measurements in science and technology, mechanical engineering,
and large mechanical equipment operation safety. 相似文献
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为实现多种设备的数据通信和统一信息管理,提出了一种基于OPC统一架构(OPC UA)的智能制造车间数据通信技术,对其通信原理和网络架构进行了讨论,提出了OPC UA与工业机器人操作系统ROS和传感器嵌入式系统等设备的整合方案,并在案例研究中详细讨论了基于Python语言的数据通信程序设计方法,开发了基于OPC UA的车间制造执行层(MES)机器人监控模块。实际应用结果表明,基于OPC UA的数据通信技术具有很高的通用性和兼容性,可有效实现智能车间设备信息的数据集成和统一管理。 相似文献
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本文介绍了近年兴起的集图像采集、处理、通讯等功能于一体的智能视觉传感器——智能相机。重点分析了其体系结构、组成模块和关键技术,比较了市场上可见到的几款智能相机。对智能相机技术的主要发展方向,以及智能相机在安防监控、工业检测、智能交通系统和机器人领域的应用作了较深刻的探讨。 相似文献
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采用Zig Bee短距离无线通信技术和Windows CE嵌入式技术建立的工业监控系统。在ARM最小系统的基础上,建立显示界面、通过UART与ZigBee协调器相连,组成一个集成度高、灵活移动的监控平台;通过ZigBee 2007/PRO协议将各个传感器节点、路由器、协调器组成无线网络,实时监控工厂状况。该系统具有无线、成本低、移动方便、功能多样、抗干扰性较强的特点。 相似文献
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提出了一种智能汽车状态在线监测和诊断系统.系统采用嵌入式系统结构和CAN现场总线通信控制方法,能有效地对影响汽车安全行驶的各状态信息进行采集和融合处理,系统软件集成了故障诊断专家系统功能,对汽车安全状态进行实时的监测和诊断,并通过人机接口进行显示和报警.该系统在汽车电子领域有良好的应用前景. 相似文献
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基于ARM和UC/OS-Ⅱ的多通道智能仪表设计 总被引:1,自引:0,他引:1
基于嵌入式系统的应用研究已成为新的热点。本文设计的一款以ARM为微处理器和CPLD为核心的多通道嵌入式仪表,运用液晶图形化显示技术,大容量信息存储和管理技术,测量和控制数据处理技术,网络通信技术等,结合工业过程控制的实际需要,移植了UC/OS-II实时操作系统,实现了仪表的智能化、信息化及网络化,完成了多通道多参数的测控。 相似文献
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全面论述机械系统的光纤光栅分布动态监测与诊断的概念、主要研究内容、实现方法及国内外最新研究进展。介绍机械系统动态监测与诊断的概念和任务,在此基础上,重点分别介绍面向机械系统的高性能光纤光栅分布式传感器、光纤光栅反射波长高速解调原理与方法、机械系统分布传感与动态监测的原理与方法、基于分布测试数据的机械损伤的识别原理与方法、动态监测与诊断的集成原理与系统设计等。总结课题组近10年来应用光纤传感技术,在重大机械装备监测与诊断方面的研究成果以及国内外相关研究领域的最新进展。 相似文献
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As manufacturing becomes increasingly decentralized, flexible and reconfigurable, more research needs to be done on monitoring
and diagnosis technology that accommodate these new trends. The distributed condition monitoring and diagnosis technology
based on the “flexible and reconfigurable” concept is studied here. A condition monitoring diagnosis model based on the distributed
flexible and reconfigurable idea is proposed in this paper. The component makeup and functions of this model are discussed
in detail. The model can fulfill in most instances the manufacturing system requirements for changing the configuration of
the monitoring diagnosis system according to different manufacturing system configurations. This model also realizes the flexibility
and reconfigurability of the monitoring diagnosis system in some degree. The model has already spawned a successful prototype
for monitoring a chemical plant in accomplishing monitoring and control of the production process and equipment. Finally,
some future research work is pointed out.
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Translated from Chin. J. Mech. Eng., 2004, 40 (3) (in Chinese) 相似文献
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《Measurement》2014
This study uses ZigBee wireless sensor network technology to build a distributed energy monitoring and management research system. A network of nodes can immediately capture the energy of the state in order to collect and analyze information through ZigBee wireless devices transmitting to a central system network server host. With an improved Particle Swarm Optimization (IPSO) approach to data integration optimization calculations, the results of this study will allow the construction of a distributed energy network monitoring system to obtain the optimal solution. The results developed in this study can be applied to energy management, environmental management, information management, plant monitoring, renewable energy management and other fields. In addition to emphasizing the GIO embedded system design techniques for automating energy management, this paper also notes the importance of building distributed nodes using ZigBee technology and energy management system control for addressing such situations as factory fires, theft and energy management security monitoring systems development. 相似文献
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针对煤矿井下环境复杂、参数难以准确测量的问题,将模糊理论与神经网络技术相结合应用到检测领域,构造了煤矿安全监测智能瓦斯传感器系统。基于RBF神经网络重点研究了智能瓦斯传感器系统隶属函数网络样本及模糊推理网络样本的生成和训练,并对智能瓦斯传感器的硬件结构进行了设计。模糊神经网络技术为智能瓦斯传感器设计提供了强有力的技术支持,使该系统能对井下复杂参数进行准确的检测,并将传统数值测量系统的数值输出转变为语言描述输出。实验仿真结果表明,该方法行之有效,为煤矿安全监测提供了一种新的思路。 相似文献
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ZigBee技术在油田远程智能监控系统中的应用 总被引:1,自引:0,他引:1
现有油田监控系统存在复杂度高、维护困难和成本高等问题,基于ZigBee技术的无线传感器网络应用于油田各项指标的测量及控制,具有低功耗、低成本、系统维护简单的特点。该文简要描述了系统的总体架构以及系统的网络建立过程和信息处理过程。 相似文献
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提出了一个基于ARM的乳化液泵站的远程监控系统设计方案,通过嵌入式系统Web服务器和Internet实现对乳化液泵站的远程监控。介绍了嵌入式远程监控系统的组成及结构,其中重点介绍了嵌入式Web服务器的组成与实现。 相似文献