厦门市Ⅱ、Ⅲ等GPS网的布设与数据处理

介绍了应用GPS测量技术建立厦门市Ⅱ、Ⅲ等控制网的布设、外业施测、数据处理和分析。     

增城警用标准地址库建设及管理

标准地址库是通过外业测绘采集,内业数据处理共同完成的。本文针对警用数据内容及标准地址数据库的特点,提出了建立警用标准数据库的设计原则以及具体的数据处理、组织的方法,并对标准地址库的外业数据采集流程、总体建库流程及数据质量控制的方法进行了介绍。     

成都地铁三号线控制网的布设

地铁测量控制网包括GPS控制网、精密导线网和高程控制网。本文介绍了成都地铁三号线控制网的布设情况,通过对布网、外业观测和内业数据处理的分析,该项目数据处理方法合理,主要精度指标满足规范要求,可以作为成都地铁三号线施工的测绘基准,并对地铁控制网布网和外业观测提出了几点建议。     

丘陵地区场地平整土石方测量计算方法的研究

文章阐述了在丘陵地区,从外业测量、数据处理、数据查错、划分计算地块、计算等方面具体土石方计算流程和方法,说明了在丘陵地区或者地形变化较大且不规则地方,在确保野外数据精度时,内业要进行数据处理,而且计算分区也要结合实际情况,土石方量才能更加可靠。     

桥梁勘察设计辅助软件设计研究

在勘察设计工作中,仍然有一些重复性的、无创造性的工作,该工作占用设计人员的大量时间且产出性价比不高。鉴于此,作者编写了一款勘察设计辅助软件,主要适用于外业勘察设计阶段的数据处理、绘图等。软件已应用于某项目的外业勘察设计工作,起到了一定的辅助设计的功能。     

基于ModelBulider的城市部件数据建库

城市部件数据建库是将城市部件外业普查成果CAD图形转换为SHP格式,并增加权属数据、网格编码和部件编码等属性信息的过程。该过程数据处理操作工作量大,并且处理流程稳定,重复性强。使用ModelBuilder模型构建器制作城市部件数据处理模型,依次调用数据处理工具,可以自动完成数据处理工作,减少大量重复工作。     

铁路某采空区变形测量技术方案探讨

结合太中银铁路山西境内某采空区的变形测量工作,对铁路建设中采空区变形测量特点、等级、变形网及变形观测点的布设方法、测量周期的确定、外业观测、数据处理等进行了探讨。     

谈提高静态GPS矿山控制测量精度的做法与体会

结合多年来GPS技术在矿山测量中的应用实践,从布网方案、选点、外业观测、数据处理等方面归纳总结了提高静态GPS矿山控制测量质量及精度的做法,并提出建议,以期为同行提供帮助和指导。     

基于编码的变电站地形图自动成图系统研究

在工程建设中,地形图是较为关键的成果资料,是开展工程设计的重要依据。文章基于南方CASS软件“简码识别”的编码地形图自动成图系统的外业工作模式、编码标准、数据格式、观测方法以及基于VB6.0的地形图绘制功能,提供了地形图测量从外业数据采集到内业数据处理等一整套流程的解决方案,并且自主研发实现了该软件系统,现该系统已在多个建设工程的地形图测量中得到广泛应用。     

太原市全景地图数据采集与发布

结合武汉市测绘研究院承担的全景工程项目《太原市全景地图数据采集与发布》的数据生产与发布,详细介绍了全景地图的外业数据采集、内业数据处理与建库等全景数据制作过程以及成品全景地图数据的发布流程。     

城市居住区室外热环境的分析方法

针对建筑室外热环境模拟研究中对物理模型过于简化的问题,提出了一种基于数字图像分析的室外热环境模拟方法,实现了图像处理技术与数学模型的结合,有效地分析了室外热环境分布情况,并在测试结果和模拟结果的对比分析中得到证实,研究结果为室外热环境的研究方法提供了新的参考.     

基于城市规划体系的户外广告设置规划体系构建

结合项目实践经验,基于城市规划体系的研究分析,试图构建一套与城市规划体系相耦合的户外广告设置规划体系,以城市规划体系支撑户外广告设置规划体系,指引户外广告设置规划与城市的规划建设同步发展、动态联结,达到户外广告与城市建筑、道路、绿化等城市系统相生共荣、可持续发展的目的。     

Relationship between outdoor and indoor air quality in eight French schools

In the frame of the French national research program PRIMEQUAL (inter-ministry program for better air quality in urban environments), measurements of outdoor and indoor pollution have been carried out in eight schools in La Rochelle (France) and its suburbs. The buildings were naturally ventilated by opening the windows, or mechanically ventilated, and showed various air permeabilities. Ozone, nitrogen oxides (NO and NO(2)), and airborne particle (particle counts within 15 size intervals ranging from 0.3 to 15 mum) concentrations were continuously monitored indoors and outdoors for two 2-week periods. The indoor humidity, temperature, CO(2) concentration (an indicator of occupancy), window openings and building permeability were also measured. The temporal profiles of indoor and outdoor concentrations show ozone and nitrogen oxides behave differently: NO and NO(2) indoor/outdoor concentration ratios (I/O) were found to vary in a range from 0.5 to 1, and from 0.88 to 1, respectively, but no correlation with building permeability was observed. On the contrary, I/O ratios of ozone vary in a range from 0 to 0.45 and seem to be strongly influenced by the building air-tightness: the more airtight the building envelope, the lower the ratio. Occupancy, through re-suspension of previously deposited particles and possible particle generation, strongly influences the indoor concentration level of airborne particles. However, this influence decreases with particle size, reflecting the way deposition velocities vary as a function of size. The influence of particle size on deposition and penetration across the building envelope is also discussed by analyzing the I/O ratios measured when the buildings were unoccupied, by comparing the indoor concentrations measured when the buildings were occupied and when they were not (O/U ratios), and by referring to previously published studies focussing on this topic. Except one case, I/O were found to vary in the range from 0.03 to 1.79. All O/U are greater than one and increase up to 100 with particle size. PRACTICAL IMPLICATIONS: Assessing children's total exposure requires the knowledge of outdoor and indoor air contaminant concentrations. The study presented here provides data on compared outdoor and indoor concentration levels in school buildings, as well as information on the parameters influencing the relationship between outdoor and indoor air quality. It may be used as a basis for estimating indoor concentrations from outdoor concentrations data, or as a first step in designing buildings sheltering children against atmospheric pollution.     

三维激光扫描技术与GIS在古建筑保护中的应用

本文通过介绍三维激光扫描技术,给出了基于三维激光扫描仪的外业点云测绘实施方案和数据处理流程。结合实例分析了用户对于三维激光扫描点云数据处理软件和生成三维古建筑模型的需求,通过建立古建筑数据库,设计了基于GIS的古建筑数字保护系统。结果表明,三维激光扫描结合GIS技术用于古建筑数字化保护具有重要意义。     

园林景观规划设计工程中测绘技术的应用

随着社会的发展,数字化测绘技术已十分广泛的应用于各种工程中。园林景观设计对测区范围内的树木测绘工作有着一些特殊的要求,本文结合在宁波“三江六岸”滨江休闲带工程中的测绘工作经验,对园林景观规划设计工程初期进行的测绘工作方式进行了一些探讨,提高外业测量及内业数据处理的效率。     

数据中心机房新风送风状态点的分析

基于数据中心机房微正压的要求,针对新风系统的能耗控制措施在降低PUE值方面效果显著.新风系统能耗可通过确定系统所需的新风量、准确的新风送风状态点控制.其中,新风送风状态点的选取对新风系统能耗有直接影响.针对数据中心不同通道封闭情况、不同季节的新风处理过程进行了分析,得出了在不同情况下相对合理的机房新风送风状态点,为类似...     

外墙外保温系统对室内热环境的影响

采用对比试验的方法,建立采用外墙外保温系统的试验房间和不保温的对比试验房间,利用自动数据采集系统连续采集两房间不同部位的实时温湿度,分析外墙外保温系统的隔热保温性能。试验结果显示,外墙外保温系统具有优异的隔热保温性能。在相同的空调温控设定条件下,采用外保温的房间室内温度基本不受外界温度变化的影响。保温房间室内温度分布均匀。使用外墙外保温系统能营造良好的室内热环境。     

Temperature and Vapor Pressure Gradients Across Wall Assemblies Using Microcomputer Graphics

An educational microcomputer graphics program for predicting the temperature and vapor pressure gradients across external wall assemblies is developed to assist designers in evaluating the performance and selection of materials. A large number of constructional types and combinations of materials are available to satisfy the various functional requirements such as structural, thermal, acoustic, etc., of an external wall. This paper presents the methodology used in organizing the material properties information in a data base within a general purpose drafting program for diagnosing the problem of condensation within the wall assembly. Specifying the thickness and the material properties used for structure, insulation, cladding, etc., one can obtain the variation in temperature across the different layers of the wall for a set of given indoor and outdoor design temperatures. The condensation problem in the wall assembly can be investigated by knowing the relative humidity of the indoor and outdoor environment. Many different wall types such as cavity walls, walls with interior and exterior insulation, metal and timber clad walls can be analyzed for a number of different combinations of materials and various thicknesses. AutoLISP in the AutoCAD environment is used for the material properties data base, calculations, and drafting. A program of this kind is an effective tool for the students of building science in the analysis of external walls for design and retrofitting, and understanding the principles involved.     

MATLAB在变形监测数据处理中的应用

探讨了MATLAB在变形监测数据处理中的应用，包括监测数据的检核、Kalman滤波器、小波降噪以及一些变形可视化功能。实践表明：在变形监测领域中引进MATLAB可以很方便地进行数据处理，降低对人员编程水平的要求，而且可以用于将成果可视化显示。     

应用MATLAB处理单桩荷载传递试验的数据

结合单桩静载试验分析,介绍应用Matlab语言编写计算及绘图程序来处理单桩在竖向荷载作用下荷载传递试验数据的方法,可显著提高试验研究的数据处理效率和结果可视化程度。