共查询到19条相似文献,搜索用时 312 毫秒
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目前面向团队管理的系统比较多,但是基于位置服务(LBS)的管理系统却很少见。随着移动智能终端正在迅速成为地图服务的增值平台,基于Android平台的Mobile GIS的地图服务技术将成为研究热点~([1])。本文重点探究了Mobile GIS和LBS的特点,团队管理系统的架构,Android手机端定位模式和基于百度地图API的位置服务,以及基于Mobile GIS在团队管理中的特色应用。 相似文献
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设计开发了一款基于LBS的同城活动APP,它利用Python网络爬虫在网上获取各类活动资讯,使用百度地图SDK提供LBS服务,根据用户的地理位置将周边活动信息在手机上呈现。该移动APP支持用户进行活动详情浏览,活动收藏、发布、评论反馈等,同时提供用户位置与活动地点间距离计算和导航服务等,建立了一个集线上聊天交流、线下相约参与活动等多功能为一体的社交平台。该移动APP采用MySQL数据库存储管理数据,使用Django作为后台服务端框架,利用MaterialDesign+MVP+Xutils3+Picasso进行Android前端的开发。该移动APP能够方便用户发现自身兴趣所在,参与活动、结交朋友和拓展社会关系。 相似文献
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利用Google Map在Android移动设备上的SDK进行LBS应用系统的设计,通过对网络模块、地图模块等核心模块的构建和外接服务的嵌入,实现对当前移动互联网中移动LBS热点应用的设计原型的探讨。 相似文献
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随着移动智能终端的飞速发展和广泛普及,移动GIS应用正迅速成长,并且成为最有发展前景的热点之一。作为移动GIS应用的分支,基于Android平台的软件开发得到了长足的发展。本文首先针对Android系统架构做了较为详尽的介绍,然后分析了Android平台软件开发的具体流程,最后深入探讨了Android平台开发中涉及的二次开发、数据存储、LBS服务等关键技术。 相似文献
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随着移动通信网络从2.5G向3G的演进,我国移动位置服务业务和产业都有了长足的发展,基于位置服务(LBS)将成为地理信息产业和移动通信市场增值服务的一个亮点。介绍了目前主要的LBS定位服务的技术实现,总体设计了基于位置服务的地理信息系统,描述了系统的构架和功能模块,探讨了相关技术难点,为地理信息技术与服务在移动LBS业务中的应用提供借鉴。 相似文献
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Location-based services: technical and business issues 总被引:13,自引:0,他引:13
Geographical Information System (GIS) and Global Positioning System (GPS) technologies are expanding their traditional applications
to embrace a stream of consumer-focused, location-based applications. Through an integration with handheld devices capable
of wireless communication and mobile computing, a wide range of what may be generically referred to as 'Location-Based Services'
(LBS) may be offered to mobile users. A location-based service is able to provide targeted spatial information to mobile workers
and consumers. These include utility location information, personal or asset tracking, concierge and route-guidance information,
to name just a few of the possible LBS. The technologies and applications of LBS will play an ever increasingly important
role in the modern, mobile, always-connected society. This paper endeavours to provide some background to the technology underlying
location-based services, and to discuss some issues related to developing and launching LBS. These include whether wireless
mobile technologies are ready to support LBS, which mobile positioning technologies can be used and what are their shortcomings,
and how GIS developers manipulate spatial information to generate appropriate map images on mobile devices (such as cell phones
and PDAs). In addition, the authors discuss such issues as interoperability, privacy protection and the market demand for
LBS.
Electronic Publication 相似文献
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随着手持设备的日益普及和基于位置服务技术的逐渐成熟,移动空间信息服务成为人们关注的热点。但目前LBS系统的协议和接口都采用了自己定义的,终端的地图显示软件各有不同,地图分层不清,(意思是:国内外终端设备上的地图显示软件很多,如MapXMobile、eSupermap等,这些软件没有针对终端的特殊条件(如低内存、计算资源有限等)对地图数据进行分层组织,)针对这些问题,本文提出了在LBS中地图信息的自适应服务,基于SVG的空间数据组织模型,用细节分层显示的方法根据服务请求对地图进行分层,通过建立移动地图信息自适应服务系统,实现LBS中地图信息的自适应服务。 相似文献
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The location requirements for emergency callers outside urban areas can hardly be fulfilled without global navigation satellite
systems (GNSS). Consequently, interest in positioning techniques based on use of a GNSS such as GPS or on the cellular network
infrastructure itself is growing rapidly in the mobile-telephone community. Moreover, the increasing demand for commercial
location-based services (LBS) has driven cellular-phone and network manufacturers to focus on positioning solutions which
are even more accurate than the regulatory mandates for positioning of emergency callers. One example of these upcoming LBS
is our PARAMOUNT project, which aims at improving user-friendly info-mobility services for hikers and mountaineers by combining
wireless communications (GMTS), satellite navigation (GNSS) and geographic information systems (GIS), based on a mobile client/server
architecture. The availability of mobile phones or PDAs with combined GNSS and cellular network-based wireless communication
on a high integration level is one primary demand of such LBS applications. Based on this, we will give some initial answers
to the question of whether mobile handset architecture synergies exist for the combination of GNSS with wireless location
in CDMA cellular wireless networks. In order to identify synergies, we will outline similarities and differences between wireless
communication and satellite navigation. In this respect, we pay particular attention to the so-called RAKE receiver architecture
employed in mobile CDMA cellular handsets. Our initial investigations will show that the RAKE receiver architecture, on which
mobile CDMA cellular handsets are based, will most likely be the one most suitable for achieving synergies between the two
positioning techniques within the same mobile handset architecture. Consequently, several receiver components could be used
to handle both types of signals (navigation and communications), resulting in a reduction of manufacturing costs and in a
decrease in energy consumption.
Electronic Publication 相似文献
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基于SVG的空间信息描述与可视化表达 总被引:12,自引:0,他引:12
SVG是移动互联时代随时随地获得各种丰富图形信息的有效方法,在LBS系统中,它也可以是空间信息描述与表达的有效方法.本文首先研究了空间信息与SVG标记间的映射关系,其次研究了SVG表示空间信息的生成方法,然后基于SVG的树状结构,在分析XML各种解析模式与图形元素渲染过程的基础上,提出了采用"pull"模式和DVR视图相结合的SVG解析与渲染方法,最后以复杂地物和考虑层控制策略时多层数据的SVG渲染结果,说明采用SVG这种开放的图形格式描述与表达空间信息是可行的,并且在空间信息移动服务中可以解决客户端多样性问题,有利于空间信息服务的普及与推广. 相似文献
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一种基于位置的移动服务系统的设计与实现 总被引:2,自引:0,他引:2
基于位置的移动服务需要设计高效、稳定和可扩展的体系结构与开发方式,提出了一种基于Web服务的LBS体系结构(WS-LBS),并设计了WS-LBS系统框架,实现了空间信息服务的构建与发布机制,扩展了终端用户,实现了一个WS-LBS原型系统。 相似文献
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基于位置的服务(LBS)需求日益增长,在GPS定位技术、通信技术以及电子计算机整体性能不断提高的前提下,LBS与移动GIS结合成为可能,并在专业领域和应用领域发挥重要作用。本文以基于LBS的移动地理信息服务平台架构技术为研究对象,首先分析了SOA架构概述和特性分析,探讨了基于SOA的LBS移动地理信息服务平台架构的设计思路,提出了实现策略,相信对从事相关工作的同行能有所裨益。 相似文献
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Location‐Based Services (LBS) are the delivery of information to mobile devices customised to location and context of the user. Some research has focused on data content, while other studies have emphasised the role of multimedia communication. However, very few objective tests have been carried out concerning usage and behaviour. In this paper, a conceptual model and a LBS test environment are presented which aim to study the behaviour and interaction between environments, individuals and mobile devices. The test environment was created, for this purpose, with three main components: urban VR models that allow individuals to ‘walk around’ at street level, a mobile device as information source which simulates LBS applications, and software for recording participant actions and reactions within the test environment. Multi‐source data were collected regarding movement tracking, information accessed through mobile device and participant observations using a combination of automated and semi‐automated methods. A case study on pedestrian wayfinding in urban settings is presented. This illustrates how the test environment can be used for LBS applications and how the data collected can be analysed. The research presented in this paper provides a novel approach in studying and understanding the interaction between environments, individuals and mobile devices. 相似文献
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