【作者】 杨光；

【导师】 张瑞生； 闫怀海；

【作者基本信息】 兰州大学 ， 计算机技术， 2010， 硕士

【摘要】 远程监控系统指的是利用计算机通过网络实现对生产过程控制系统的监视和控制,突破了地域上的制约而实现异地监视和控制生产过程现场设备。随着控制技术、通信技术、计算机技术的快速发展,人们的工作方式、生活方式正逐渐地被改变着。同时企业信息化和自动化领域的发展也受到了巨大的影响。越来越多的企业、部门迫切的希望结合网络系统实现对设备的远程监控。兰州重离子加速器是国家级重点实验室,是一个庞大的离子加速器工程系统。在加速器上,离子束的强弱是反映其性能的重要参数之一,目前ECR、SFC和SSC加速的束流强度最大为10-5A量级,CSR为10-3A量级。为了逐步提高机器性能,随着不断的升级改造,在调试运行过程中,对于SSC通常需要分辨小于10-12A的流强,如此高的分辨对于弱信号测量而言难度相当大,几乎到了极限。科学研究是艰辛的,知难而进、改造提高及设计一个满足SSC更高要求、新的弱信号测量系统是必然的。本课题在这种前提下,通过对网络技术、弱电流测量技术、嵌入式系统等的研究和探索,完成基于Ethernet的兰州重离子加速器束流远程监测系统的研究设计。该系统允许控制人员通过Internet网络对重离子加速器的束流进行实时远程检测。反映加速器带电离子束流大小的一个重要参数就是束流强度,束流可以等效为弱小的电流源,本文通过对MSC1210微处理器的研究,设计一款基于MSC1210的智能弱电流测量系统。本测量系统经过信号电流采集、信号转换、放大、整形、A/D转换、数据处理、结果输出等过程,实现了弱电流的自动测量。目前,该系统已经应用于重离子加速器系统中,对提高加速器束流传输效率有很大的帮助,减轻运行和物理调试人员工作强度。更多还原

【Abstract】 Remote monitoring system is realized by using computer network for monitoring and controling production process control system, breaking through the regional restriction by realizing remote monitoring and controling the production process field equipment. As the rapid development of control technology, communication technology and computer technology, people’s working style and lifestyle is increasingly changing. At the same time the enterprise informatization and development in automation field has been influenced tremendously. More and more enterprises and departments hope urgently to realize the remote monitoring for equipments with network system.Heavy Ion Research Facility, Lanzhou (HIRFL) is state-level key laboratory, and a huge ion accelerator engineering system. On the accelerator, the strength of the beam is one of the important parameters that reflects its performance. At present, the accelerated beam strength of ECR, SFC and SSC has reached maximum 10-5 magnitude, 10-3 of CSR. In order to gradually improve the machine performance, with constant upgrading, test and operation process, it is necessary for SSC to distinguish beam current less than 10-12A. Such high resolution for weak signal measurements is extremely difficult, almost arriving at the limit. Scientific research is arduous, but we should move ahead despite difficulties, for improving and designing a Weak Signal Measurement System to meet higher requirements of SSC is inevitable. With this prerequisite, through network technology, low current measurement technology, embedded systems, this reaearch project is aimed at researching and designing beam remote monitoring system for the HIRFL based on Etherne. This system allows controllers’real-time remote monitoring for the beam of heavy-ion accelerator through Internet network.Beam intensity is an important parameter to reflect size of the accelerator charged ions and beam can be equivalent to the weak current source. Based on the research of MSC1210 microprocessor, this project designed a low intelligent current measurement system served for MSC1210. The measurement system realized the automatic measurement of the current through the signal current collection, signal transformation, amplification, reforming, A/D conversion, data processing, output process. At present, this system has been applied in heavy-ion accelerator system, improving the transmission efficiency of accelerator beam and reducing the operating and physical debugging personnel’s working intensity.更多还原