Overcoming challenges in developing more usable pedestrian navigation systems

This article presents an overview of a research project focusing on improving the usability of pedestrian navigation systems by following a User-Centered Design (UCD) approach. One of the main problems with those systems is how to adequately support and enhance the spatial interactions of a traveler to new urban areas, which is crucial for successful self-orienting and wayfinding. The methodology employed allows for conceptualizing, implementing and evaluating research prototypes that aim to satisfy the special user requirements. Outlined in this article are the techniques designed and integrated in the developed prototype, the methods used for their evaluation through field-based studies and the challenges encountered during this process. New techniques with a measurable impact on the effectiveness, efficiency and satisfaction of navigation were tested and found to dramatically enhance the sense of personal geo-identification in new places. Examples of those techniques are landmark visibility indication, multi-path routing based on time availability, multi-perspective landmark photos and reverse overview + detail maps. Overall, the outcomes of this research verify the capacity of UCD to help overcoming current usability issues with pedestrian navigation systems. By demonstrating an effective UCD methodology and discussing the lessons learned, we intend to aid the development of next generation navigation appliances.     

数字化成图方法的设计与应用分析

同模拟成图相比,数字化成图是一种全解析、机助测图的方法,具有显而易见的优势和广阔的发展前景,是地形测绘发展的技术前沿.     

Crowdsourcing a cyclist perspective on suggested recreational paths in real-world networks

ABSTRACT

Routing and navigation services for leisure activities are conditioned by special needs and trade-offs. The advent of online communities and large crowdsourced datasets offers opportunities to improve the adoption of a user’s perspective in these suggested paths. This paper focuses on achieving two goals. First, the presented methodology analyses a dataset of 190,610 historical GPS traces to gain insights into the appreciation or attractiveness of each edge in a real-world network for a specific leisure activity (i.e. road cycling). Second, as literature on these leisure activities is still sparse, we want to create a thorough understanding of the activities at hand for future work. An appreciation model is proposed and the spread of this score is analyzed in shortest-path alternatives of popular routing engines for this activity. This analysis successfully discriminates these shortest paths based on the scoring value and three morphological parameters of the path. However, the robustness of the model should be improved to ensure the viability of the proposed approach in future work. More specifically, further research on the local optimality of the route choices will be imperative.     

GPS新近发展及其军事应用

本文简述了GPS的最新发展动态，着重分析了GPS在精确制导武器上的应用形式和效果，指出了GPS制导技术存在的局限性及其未来发展趋势。     

“数字测图原理与应用”课程思政实施途径探讨

通过分析"数字测图原理与应用"课程的特点及内涵,深挖课程思政元素,分析了各章节专业知识目标和育人目标,提出了"知识回顾,创设情境;导入新课,讲授演示;突出重点,启发育人;升华认知,归纳总结"的教学设计。将思想政治与专业知识进行有效融合,以期为"数字测图原理与应用"课程思政改革提供参考和借鉴。     

河南省旅游地图网站的设计与实现

旅游网络地图是在万维网上制作、浏览和使用的旅游电子地图。网络地理信息系统技术的快速发展及计算机互联网技术的日益普及,旅游业的迅猛发展,导致对旅游网络地图的需求增加。为满足旅游业的迅猛发展及旅游者对旅游网络地图的迫切需求,笔者对旅游网络地图与旅游地图网站的设计与实现进行了研究。河南省旅游地图网站是本项研究的实验平台,嵌入其中的河南省旅游网络地图的设计是该网站研究的特色与重点,各项其他研究也都是围绕该旅游网络地图展开。本文在研究了旅游地图网站设计原则的基础上,通过实例——河南省旅游地图网站的设计与实现,进一步证明了所提出设计原则的正确性与可行性,并详细介绍了河南省旅游地图网站设计与实现的具体方法。     

北斗卫星导航系统在西部困难地区测绘任务中的应用

西部某困难地区地形复杂、移动通信困难,为使该风电场控制网与地标点的布设顺利,利用北斗卫星导航系统实现野外作业过程中作业组与组之间通信,确保了各组作业过程中的互相沟通协作,并结合卫星影像,采用C#语言作为开发设计工具设计实现了基于北斗接收机的导航软件,为作业组顺利到达预设点位提供准确快捷自主导航服务。     

房地产拆迁测绘管理系统设计和应用

城市的快速发展和旧城改造,对房地产拆迁测绘管理提出更高的要求.结合房地产拆迁测绘的特点,本文介绍了系统技术设计实现方案和应用工作流程,并论述了系统的主要特点.     

中山站至DOME-A内陆冰盖考察导航系统设计

基于GPS的导航技术作为一个很热门的研究课题,其在航空、航天以及陆上车辆导航,个人移动导航等诸多领域有着深入广泛的应用。但针对南极地区这一基础地理信息缺乏,环境特殊的科考导航系统的开发研究却极其少见。本文结合移动导航技术和南极科考的实际需求,设计了中山站至DOME-A内陆冰盖考察导航系统,对系统结构、功能进行了详细设计,最终编制完成了模拟系统。     

网络地图人性化界面设计

目前网络地图发展迅猛,但界面设计缺少理论指导,仍存在着许多问题.文中首先研究了网络地图的特点和界面内容,对目前网络地图界面设计中存在的突出问题进行归纳.接着提出了基于认知心理学理论的一般性网络地图界面设计原则.最后,对网络地图的用户层次进行分类,举例说明上述设计原则在人性化网络地图界面设计中的应用.     

A geovisual analytics exploration of the OpenStreetMap crowd

It is sometimes easy to forget that massive crowdsourced data products such as Wikipedia and OpenStreetMap (OSM) are the sum of individual human efforts stemming from a variety of personal and institutional interests. We present a geovisual analytics tool called Crowd Lens for OpenStreetMap designed to help professional users of OSM make sense of the characteristics of the “crowd” that constructed OSM in specific places. The tool uses small multiple maps to visualize each contributor’s piece of the crowdsourced whole, and links OSM features with the free-form commit messages supplied by their contributors. Crowd Lens allows sorting and filtering contributors by characteristics such as number of contributions, most common language used, and OSM attribute tags applied. We describe the development and evaluation of Crowd Lens, showing how a multiple-stage user-centered design process (including testing by geospatial technology professionals) helped shape the tool’s interface and capabilities. We also present a case study using Crowd Lens to examine cities in six continents. Our findings should assist institutions deliberating OSM’s fitness for use for different applications. Crowd Lens is also potentially informative for researchers studying Internet participation divides and ways that crowdsourced products can be better comprehended with visual analytics methods.     

移动道路测量系统在城市导航数据快速更新中的应用

随着科技发展,道路导航产业正在蓬勃发展,而导航的基础数据采集和更新正是制约导航产业的瓶颈,本文通过移动道路测量系统采集导航数据并对其检测,探讨移动道路测量系统在导航数据获取和更新中的应用,并对移动道路测量系统在导航产业中的前景进行展望。     

GPS的发展及在精确制导武器中的应用

文章阐述了GPS的最新发展动态,着重分析了GPS在精确制导武器上的应用形式和效果,并对GPS制导方法与其它制导方法进行了比较,指出了GPS制导技术存在的局限性及其未来发展趋势。     

武汉市房产测绘综合管理信息系统的建设及应用

房产测绘分为房产基础测绘和房产项目测绘,需要处理大量的文档数据以及图形数据,因此开发房产测绘综合管理信息系统十分重要。根据武汉市房产测绘信息化建设的基本情况,对房产测绘综合管理信息系统的建设目标、设计原则及其建设内容做了阐述,并就该系统在日常工作中的应用进行了分析和探讨。     

浅谈ArcMap在1:10000地形图制图中的应用

GIS的广泛应用加速了地图制图产业的发展,本文以ArcMap为平台,以基础地理建库数据为数据源,结合参与的工程项目,阐述了ArcMap在1:10 000地形图制图应用方面的方法和技巧,希望能给基层的作业人员提供一定的参考。     

Cartographic Design and Usability of Visual Variables for Linear Features

This article addresses the measurement and assessment of response times and error rates in map-reading tasks relative to various modes of linear feature visualization. In a between-subject design study, participants completed a set of map-reading tasks generated by approaches to a traffic problem. These entailed quick and correct decoding of graphically represented quantitative and qualitative spatial information. The tasks first involved the decoding of one graphic variable, then of two variables simultaneously. While alternative representations of qualitative information included colour hue and symbol shape, the quantitative information was communicated either through symbol size or colour value. In bivariate tasks, quantitative and qualitative graphical elements were combined in a single display. Individual differences were also examined. The concept of cognitive style partially explains the variability in people’s perception and thinking, describing individual preferences in object representation and problem-solving strategies. The data obtained in the experiment suggest that alternative forms of visualization may have different impacts on performance in map-reading tasks: colour hue and size proved more efficient in communicating information than shape and colour value. Apart from this, it was shown that individual facets of cognitive style may affect task performance, depending on the type of visualization employed.     

基于可用性的多媒体电子地图集界面设计研究

针对多媒体电子地图集界面设计中可用性方面存在的主要问题,引入了可用性理论对多媒体电子地图集界面设计问题进行了分析研究。在研究中首先介绍了可用性及其在电子地图领域中的应用情况,分析了影响多媒体电子地图集界面设计的因素,然后运用可用性实验的方法找出了多媒体电子地图集在界面布局、色彩设计和工具图标方面出现的主要问题,最后提出了相应的设计原则。本研究为多媒体电子地图集界面设计提供了理论参考依据。     

浅析地质测绘中GPS技术的运用思路构建

地质测绘是调查地址与勘查矿产并编制成果图件的总称,包括测量地质点和地质剖面、测量物化探、测量矿区控制与矿区地形、勘探网布测、勘查工程定位测量、测量坑探工程、测量井探工程以及测量露天矿测量等。而高科技软件GPS技术(特别是GPS-RTK技术)已经广泛地应用于地质测绘工作中,使用该技术可以准确地处理复杂的工作流程,并清楚地绘制出三维图像。本文详细介绍了GPS-RTK技术,举例说明其在地质测绘工作中的应用,并提出个人建议。     

天绘一号卫星图像处理方法及应用研究

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浅析GIS系统在地图测绘中的应用

GIS地理信息系统是一类建立在多种应用平台基础上,以集成地理空间信息的数据库系统为主要基础,充分利用地理模型建构、数据定量分析等方法进行相关空间地理数据信息的收集与处理,从而具有极高的准确性和灵活性的计算机应用系统。本文将就GIS地理信息系统的基本定义、系统构成和实践应用等几个方面进行系统的阐述,以期能够对目前的科学研究和社会实践具有一定的启发作用。