共查询到18条相似文献,搜索用时 281 毫秒
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岳洪泉 《A&S(安防工程商)》2005,(5):120-125
上期我们主要讨论了BAS的选择、BAS的管理、对一个完整的BAS工程应有的理解和操作,以及BAS十类设计文件说明的第1项,下面我们来探讨BAS的2-10项设计文件说明。 相似文献
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本文总结了我国智能化建筑发展现状中存在的问题,针对楼宇自动化系统(BAS)设计领域存在的不规范现象,结合国外集成经验,给出了规范的BAS设计说明书结构,并对设计步骤进行了概括。 相似文献
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岳洪泉 《A&S(安防工程商)》2005,(4):114-118
关于BAS的选择和使用的偏颇问题,工程上确实存在有多种原因,这其中有设计的BAS尝试不统一、不到位的问题,又有管理要求不合适的问题。这里力求从建立BAS起到接手管理,希望每个阶段都有依据和接续,让BAS的选择适宜、使用合理。 相似文献
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《数字社区&智能家居》2008,(8)
设计总则
1.系统设计概述
楼宇自控系统(Building Automation System,简称BAS)是智能建筑的一个重要组成部分。BAS是基于现代分布控制理论而设计的集散系统,通过网络系统将分布在各监控现场的系统控制器连接起来,共同完成集中操作、管理和分散控制的综合自动化系统。 相似文献
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楼宇自动化系统软件测试技术 总被引:2,自引:0,他引:2
BAS软件测试是系统工程的重点,软件的质量关系到整个BAS系统能否正常运作。文章结合实际经验对BAS的软件测试方面进行探讨,详细介绍了BAS软件测试的各个方面,并给出了详细的测试要求、测试基础及测试步骤。 相似文献
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建筑设备监控系统的设计 总被引:1,自引:0,他引:1
根据作者多年来对建筑设备监控系统的设计和调试经验,从为用户提供节能和舒适的工作环境出发,简要阐述了智能建筑中BAS的设计要点及工程调试中的参数调整。 相似文献
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由于Web模式采用BACnet技术的控制网络已成为行业的发展趋势,BACnet/IP的出现使控制网络与Internet的无缝连接成为可能,并成为控制网络技术新的发展点,建筑自动控制系统(BAS)的集成方案日趋受到愈来愈多的关注。通过某高校网络中心大楼的BAS设计实现,研究了基于Web模式的采用BACnet技术的BAS集成方案,并通过其良好的应用效果表明了此方案的可行性及其广阔的发展前景。 相似文献
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以沈阳地铁1号线为背景,对环境与设备监控系统和门禁系统进行分析,论证了将门禁系统集成到环境与设备监控系统的可行性,提出了依托地铁运营线路的环境与设备监控系统来建设门禁系统的设计方案。为了优化门禁系统的实施,提出了一种地铁无线门禁系统的设计和施工方法。 相似文献
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介绍了基于LON总线和RS-485的三种楼宇自动化监控系统设计方案,通过对它们优缺点的分析比较,着重阐述了基于LON总线与RS-485分级混合控制网络的系统设计方案,文章较详细地说明了该方案中控制节点,路由器和网关等核心部分的实现,本文为实现当前控制网络中异构网段情况下网络集成问题提供了一种解决方案。 相似文献
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Three programming applications in BASIC HIST.BAS for computing histograms, HE.BAS for histogram equalised stretch, and NDVI.BAS for deriving the homonymous vegetation index were constructed in an effort to examine the potential of BASIC to support image processing applications with concentration given in this study in processing of satellite images. The efficiency of the programs was examined to demonstrate high performances satisfactory for any use in the field of image processing, including educational, research, or operational applications. 相似文献
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BAS系统(机电设备监控系统)主要完成车站内的机电设备如空调机组、新风换气机、送/排风机、风幕机、潜污泵、电/扶梯、风冷热泵等设备的自动监视、控制和管理。为了更好地优化BAS系统的可视化界面设计、提高监控质量,以达到节能、安全、提高管理水平的目的,本设计将NB-IoT技术、 Oceanconnect云平台设计及嵌入式技术综合融入到BAS系统中,实现远程监管各个站内数据并实时控制各站内设备以应对突发情况。本系统采用STM32作为微控制器,设计温湿度及光照总控中心和调控节点电路,总控中心通过NB-IoT无线通信模块组网与各安装在站内的多个调控节点进行指令下发和数据上报的双工通信,将通过各节点的温湿度及光照传感器采集到的数据经STM32单片机处理后,通过NB-IoT无线通信模块上传至根据实际要求设计的Oceanconnect云模型中,实现总控制中心及节点电路的云端数据可视化及数据分析,同时还可以由上位机云端模块直接控制各站内下位机的空调机组,换气机污水泵等设备,以实现实时的监管与控制各站内现场环境。经过实验测试结果表明,系统可视化界面清晰简洁易操作且性能稳定可靠,能够实现实时数据的通信分析与控制,提高车站内现场控制的有效性,能够对突发情况进行快速自动处理。 相似文献
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Seung-Ho Hong Joung-Han Lee 《International Journal of Control, Automation and Systems》2010,8(4):831-840
Field devices in factory automation and process control systems generate time-critical, periodic, and time-available data. These data share the bandwidth of one fieldbus network medium. This paper reviews a bandwidth allocation scheme (BAS) that is applicable to many different kinds of field-buses. The BAS satisfies the real-time transmission requirements of time-critical and periodic data, and fully utilizes the bandwidth resources of the fieldbus network. The basic concept of the BAS is introduced and its implementation in Foundation Fieldbus, Profibus, and CAN protocols is discussed. 相似文献
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C. J. Calkoen G. H. F. M. Hesselmans G. J. Wensink J. Vogelzang 《International journal of remote sensing》2013,34(15):2973-2998
With the operation of the European Remote Sensing (ERS) satellites and RADARSAT, radar images are now readily available. One of the new applications of radar images is their use for bathymetric mapping in shallow seas. The Bathymetry Assessment System (BAS), described in detail in this paper, constructs accurate depth maps from radar images and a limited number of echo soundings. The BAS consists of a forward imaging model and an inversion part. The system needs a first guess depth map that may be derived from echo soundings or an old map of the area. The forward model calculates a simulated radar image. This is compared with the actual radar image by evaluating a penalty function. The penalty function also contains a term that compares model depths with measured depths and a term that contains a smoothness criterion, prohibiting speckle noise to be interpreted as depth variations. The inversion part of the system consists of optimization of the penalty function. This leads to an iterative procedure in which some model parameters are also estimated. When converged, the model depth is an estimate for the real depth. This model depth matches radar images and echo soundings as closely as possible. The system may be regarded as an intelligent interpolator: it interpolates depth between transects of echo soundings steered by the bathymetric information in radar images. The system has been applied many times and some examples are given in this paper. Its accuracy depends on the number of echo soundings fed into the system, the number and quality of the radar images, and the nature of the area under consideration. When a root mean squared error of 30 cm (compared to echo soundings) is acceptable, the distance between the tracks of echo soundings needed by the BAS varies between 600 m to 1 km or more. This should be compared to the usual track distance that is 200 m at most. Use of the BAS may therefore lead to a considerable improvement in efficiency. The accuracy of the system can be improved by using airborne radar images with higher resolution. 相似文献