小区视频安防监控系统

随着智能建筑的快速发展和人们安全防范观念的不断变化,如何建立一个高效完善的视频监控系统成为必须解决的问题。本文主要介绍视频安防监控系统的基本构成,图像的压缩技术以及周界报誓,从而使读者能够自行选择小区视频安防监控系统的建设方案。     

小区视频安防监控系统

随着智能建筑的快速发展和人们安全防范观念的不断变化,如何建立一个高效完善的视频监控系统成为必须解决的问题.本文主要介绍视频安防监控系统的基本构成,图像的压缩技术以及周界报誓,从而使读者能够自行选择小区视频安防监控系统的建设方案.     

定位型震动光纤在油气场站周界安防系统中的应用

结合西部地区油气管道场站的安全防范具体要求和特点，将定位式震动光纤报警技术的具体应用到场站安防系统中，该技术直接利用光纤作为侵入信号的传感介质，联动视频监控系统，实现重点防护场站本地及远程监控。     

高清·物联·智能·融合——大华数字化能源解决方案

正大华股份作为专业的视频监控产品供应商和解决方案服务商,凝聚公司十多年在能源石油石化行业大项目执行经验,从能源业务流角度、视频监控及安防应用角度考虑,形成了高清、物联、智能、融合的行业应用方案,将视频监控、周界入侵报警、环境监控系统、门禁系统、语音系统等多个子系统进行融合,统一管理,实现真正的物联网,从而确保了能源行业的安全生产。     

基于物联网的家庭安防系统设计

随着我国科技跨越式发展及安全防控需求,家庭安防系统应运而生,成为智能家居不可或缺的子系统。分析现有家庭安防系统,发现其在功能性、智能性和建设成本上存在欠缺,不能满足安全防控的绝对需求。基于此,提出了基于物联网的家庭安防系统,室内采用WiFi组网传输,选用4G网络搭建手机传输通道,实现室内环境监测、视频监控、门禁管理、设备控制等功能,支持PC端及手机终端的双端查看,极大保障家庭居住场所的安全性。     

浅谈数字工业电视监控系统在石油化工企业的应用设计

随着现代科学技术的进步和发展,视频监控技术也实现了迅速发展,视频监控系统已从数字化、模拟化向高清化、网络化方向发展,数字工业电视监控系统也在各领域得到广泛应用。本文首先介绍了数字工业电视监控系统的组成、特点和优点,然后探讨了数字工业电视监控系统在石油化工企业的应用设计。     

4G网传视频监控系统在输油管道高后果地区应用浅析

高后果区是油气管道运输过程中的高危区域,视频监控系统能够实现对该区域的实时监测和安全管控,但高后果区域存在地理位置偏僻难以铺设监控网络传输线路的问题。本文针对这一问题,提出高后果区4G工业电视系统解决方案,结合4G网络传输优势实现无线电视监视系统,终端用户能够通过平台联动处理各类报警,进行视频复核及应急预案处置。本文重点介绍了平台系统的组成结构,工作原理和技术特点,并通过实际效果分析了平台在高后果区应用的重要价值,成果对于提高石化管理机构异常监测、应急响应能力有着重要的推动作用。     

油库监控系统的雷电防护

综合分析雷击对油库造成的损害和后果,以及雷击损害的主要原因和侵入途径,依据《建筑物防雷设计规范》GB50057-2010,采用"分单元防护思想",对油库的储油监控系统、现场安防监控系统、输油控制系统等进行了全面综合防护,防止了因疏漏带来的雷击危害。     

射频芯片nRF905在烟气脱硫系统中的应用

采用射频芯片nRF905构成了CAN总线系统,描述了nRF905芯片的特点和无线数据传输系统的结构,介绍了收发器的工作方式,以及用于烟气脱硫监控系统的具体方案,此系统也可应用于无线通信、环境监测、车辆监视、安防系统等多个领域.     

视频监控系统在大化集团的应用

简述监控系统的重要性及其发展方向。说明监控系统的组成原理．并介绍大化集团视频监控系统具体分布、功能、特点以及重要作用。     

DLC coating for video head

The effect of the thickness of DLCs sputtered on video heads upon the value of the playback signal and visibility of the gap in the ferrite surface was examined. It was found that DLCs improve the wear resistance of the heads, whereas the playback quality depends on the probability of the DLC peeling off during friction on the video tape. Technological regimes involving vacuum-pulsed arc sputtering of graphite in combination with ionic bombardment of the ferrite surface and the DLC were worked out. These regimes provide a good adhesion and smoothness of the film surface. Tests of video heads covered with DLCs showed that the wear resistance and the ‘still frame’ time of these heads are several times larger than those of standard video heads. A reliable and highly efficient commercial technology for the production of DLC video heads has been developed.     

微课发展中的问题及其解决策略

解决微课发展所面临的问题需要相应的策略:从系统化资源、专题化资源、学科化资源三方面整合现有的微课资源;运用大数据的统计思想来建设运营网络微课;授课视频、录屏视频、音频三段可分开录制;借助小技巧合成微课视频。     

嵌入式无线视频监控小车

结合嵌入式系统与数据无线传输技术,设计了一个基于Wi Fi的嵌入式无线视频监控小车系统。介绍系统的总体结构,给出系统的软硬件设计。试验结果表明:该系统运行稳定可靠,能够达到视频监控的要求和预期效果。     

Mechanism of seeded infiltration growth process analysed by magnetic susceptibility measurements and in situ observation

Using the magnetic susceptibility measurements (MSM) at high temperature and in situ video observation, the mechanism of seeded infiltration growth (SIG) process was investigated. This process offers the opportunity to verify the main phase transition by measuring the magnetic force acting on the sample. The heat treatment process which adjusted from MSM and video observation, allows to obtain the single domain YBCO superconductor.     

A Novel Machine Vision Based Image Analysis Method for the Analysis of Mixing Elements in Rotary Drums

Mixing performance in continuous rotary drums has been studied. The video analysis method was developed to evaluate different configurations of straight lifters in the rotary drum. The method converts a captured video into a single image, called stack image. The color marker tracking was estimated based on the color saturation of the stack image. Coefficients of variation and mixing indices were calculated from the color saturation profiles for different straight blade lifter configurations. The video analysis method was confronted to the impulse response of acid concentrations in water solutions. The developed analysis method has been superior with viscous fluids compared to traditional tracer impulse method in mixing evaluations. Water and 1% CMC-water solution were used in this mixing study for covering broadly different viscous materials. The drum lengthwise results for one lifter configuration were obtained from a single experiment due to the block representation of the image analysis method. It enables mixing analysis of axial segments and interaction analysis of mixer configurations. Thus, the axial mixing can be studied in more detail with rotary drums. The increase of lifters, residence time, and tip speed improved axial mixing in the studied experimental setup.     

Growth Rate, Lifetime, and Maximum Diameter of Bubbles in Silicate Melt Film

The growth rate, lifetime, and maximum diameter of bubbles in a silicate melt film are measured at 770°C in an argon atmosphere with the use of a video complex consisting of a high-temperature microscope, a video camera, an input–output video card, and an IBM-486 personal computer.     

Software for simulating dichromatic perception of video streams

We have designed a configurable stand‐alone Matlab‐based software to simulate dichromatic perception of video streams. The algorithm used is an extension for video streams of the “corresponding pair algorithm” by Capilla and coworkers for simulation of dichromatic perception of images. The software allows the user to upload a video sequence and to process it using different dichromatic color vision models and viewing conditions. The output video may be generated in different spatial and temporal resolutions and file formats. The functions for Matlab environment and a stand‐alone application may be downloaded from the Repository of the University of Alicante. © 2013 Wiley Periodicals, Inc. Col Res Appl, 39, 486–491, 2014     

伪造视频图像的检验方法研究

近年来,随着视频图像处理技术的普及与运用,为刑事影像和新闻摄影提供了极大的便利,但与此同时,利用视频图像处理技术更容易制作出假视频和假照片。蒙蔽办案人员、摄影大赛评委、报社版面编辑,以达到掩盖真相、获奖、发表等目的。伪造的视频图像危害很大,掌握视频图像的真伪检验技术,有效的维护刑事影像和新闻摄影的真实性。     

硝酸萃取传质过程中的界面弛豫研究

在萃取装置中研究了激励相界面的硝酸传质过程。该装置是一个改进的传质槽,它有保温夹套和一条穿过两相用于激励相界面的带子。硝本匠变化采用插入水相的电导仪探针检测,用录象方法记录实验中的界面现象。实验采用ＴＢＰ、ＴＯＡ和ＴＨＡ作为萃取剂,用四氯化碳,甲苯或７～１３℃烷烃做萃取溶剂。实验结果表明,激励相界面能够提高传质速率;在传质开始前对界面失要息和老化可以改变传质的初始速率。通过录象证实,激励相界面能够     

KJ656矿用人员管理系统设计与应用

针对矿山安全监管部门无法及时的获取到井下人员、机车等移动部分的行动轨迹信息等问题,设计并应用KJ656矿用人员管理系统。系统由人员定位、视频联动、无线通信、智能撤离、双向报警、人员考勤、远程调动、双机热备及状态检测模块组成,实现在井下无＂盲区＂全网覆盖、实时信息交互、视频触发联动、逃生线路合理规划的全方位安全管理,方便安全管理部门实时监管。