监控系统

The article researched new type thyristor trigger that adapts the frequency of input power automatically, then analyzed the designing ways and process of frequency-tracked trigger in detail, yet validated capability of trigger through experiment and actual appliance in project, we also build up the fault-diagnosed and disposal cell of hypogyny machine with SIMATIC S7-200 PLC, besides, programmed and debugged to realize various monitor and diagnose; more, smart design make protection function more perfect and action more sensitive, so it can realize perfect swift and reliable protection under fault condition.

本文重点研究了以频压变换技术为核心的新型频率跟踪触发器，详细分析了频率跟踪触发器的设计思路和设计过程，实现了在同一移相控制电压下，当同步电压频率大范围变化时触发器输出触发脉冲的电角度保持不变的目的，满足了项目对同步电压频率变化时晶闸管准确触发的要求；并通过实验和工程实际应用验证了触发器的性能。设计了基于SIMATIC S7-200 PLC软硬件的故障诊断系统并调试了各项监控、诊断功能；实现故障条件下准确、迅速及可靠的保护。

And these works can't be completed without a set of high-speed image acquisition system. Meanwhile image acquisition is the basis of image processing, compressing and recognizing, so the research on image acquisition system is very important and valuable.

同时图像采集也是进行图像处理、图像压缩、图像识别，从而实现视频监控的基础，所以对图像采集系统的研制有着重要的现实意义和价值。

Meter data of independent research and development company sampling equipment and large-scale data processing software, a set of effective monitoring and management of Chengshiguanwang System, is also the need to purchase communications equipment, instruments, etc..

公司自主研发水表数据采样设备和大型数据处理软件，形成一整套对城市管网有效监控管理的系统。公司也有需要采购通讯器材，仪器仪表等。

It validates the reliability of the simulation system and is an indispensability part of the simulation system.

通过对仿真结果进行分析，验证了仿真系统的可信度，为以最少的投入，最短的时间，实现直观、真实的显示整个塑炼过程，实现对挤出过程的实时监控的目标迈出了第一步。

It introduces the network situation of system and integrant subsystems with pictures in chapter four and the displays with WinCC in chapter five.

由于本次设计是利用WinCC组态软件结合现场总线和可编程控制器完成的监测控制网络，所以在第四章网络的硬件组态中以图片的形式介绍了监控网络的组网情况和部分子控制系统。

System manages the network resources in an intuitionist way by combining the geography information system and databases.

系统实现了跨子系统网络维护与管理、资源数据的整合，实现了故障的集中监控、故障工单的流程化管理、全网的资源共享和数据同步、提供端到端的电路信息查询、电路开通建议功能。

Firstly, a hybrid system about the start-up process of a leatheroid's DMF recovering plant has been studied, the hierarchical control model of this system was built using timed Petri nets and hybrid Petri nets theory. The monitoring method of start-up process was discussed by studying the coordination layer of this model, and the reachability method was adapted to analyze this model.

论文首先对混杂系统——人造革DMF回收开车过程进行了研究，结合赋时Petri网和混合Petri网建立了其递阶控制模型；通过对其协调层的深入讨论，研究了开车过程的监控问题，采用可达性等方法对模型进行了分析。

Automatic measuring and control systems are integrated in rolling mills to optimise levelness.

自动化测量和控制系统集成在滚动线上监控水平度。

Systemic studies environment temperature how to influence construction control, finds out linear regularity and function formula of the arch rib, selects optimal closure time, then fully meets requirements of closure precision and linear. By testing a lot of data on temperature and strain and adopting least squares collocation, this dissertation deduces the strain calculate formula that is amended by joining temperature factor, then improves accuracy of stresses testing data.

系统地研究外界温度变化对施工监控的影响，找出了拱肋变化的线性规律和函数式，选择出最佳合龙时机，保证了拱肋的合龙精度和线形要求；测试了大量温度与应力对应关系的实验数据，采用最小二乘拟合推估法，推导出温度修正后的应变计算公式，从而提高了应力测试数据的准确性。

Monitor Center is a system designed to help you control and monitor your computers in a local network.

监控中心的目的是帮助您控制和监测在本地网络中的计算机系统。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。