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物联网正在快速发展,而地理信息系统能够为联网的物体提供空间位置与状态可视化、时空关系管理与时空过程分析的技术支撑,已在物联网业务中大量使用。本文在分析物联网的需求和GIS技术特点的基础上,针对物联网应用GIS较为分散、开发难度大的现状,提出基于GIS的物联网中间件架构,并基于该架构实现了交通状况示范应用系统,有利于数据共享、互联互通、统一服务、即时处理、实时预警和数据分析,降低了系统建设的成本和周期,提高了业务运维的效益,有利于促进物联网应用向空间化、可视化、协同化、普适化发展。 相似文献
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RFID(射频识别)中间件技术是RFID产业化的关键技术,分布式环境下的信息交换是这项技术的主要研究方向之一。随着企业对空间位置信息的关注需求日益增大,空间信息服务也成为RFID中间件中必不可少的组成部分。本文介绍了RFID中间件和空间信息服务的概念,通过一个RFID物流管理系统应用实例研究了空间信息服务在RFID中间件中提供空间信息操作,处理与交换的应用。 相似文献
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随着信息化程度的提高以及物联网、云计算、SOA等技术的迅速发展,人们对基于车辆位置的各种需求日益增高,为了实现这种多样性的需求,超图软件开发出基于车联网(Telematics)应用的位置服务平台。Telemat-ics服务能够有效地将汽车技术信息、车辆位置信息、人员流动信息、物流信息、交通信息等汇聚在车联网上,从而让这些信息产生更深远的应用价值。本文从SuperMap GIS技术应用出发,结合超图自有的POI搜索引擎、导航引擎、云服务等产品,对基于telematics应用的位置服务平台进行详细的介绍。 相似文献
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李小卫 《测绘与空间地理信息》2022,45(3):158-160,164
针对地理空间信息在政府部门间的交换和共享能力不足问题,基于嘉兴政务地理信息的共享交换平台建设,本文探讨了政务地理信息共享交换平台的框架设计及共享交换流程、数据库设计与功能模块设计,利用案例应用分析展现共享交换平台实现效果,有助于推进政府部门地理空间数据的共享和提升政务服务能力. 相似文献
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曹铁朋 《测绘与空间地理信息》2022,(11):170-173+177
为了实现国务院提出的深化放管服改革和优化营商环境的总体要求,不动产登记也在积极推进“互联网+”便民化服务,逐步改变以往办理登记需奔走不动产交易、税务、公积金等部门及等待发证时间较长的状况,部门间的信息共享、实时交互成为达到这一目标的难点和关键所在。本文以目标需求为导向,以部门信息共享交换为宗旨,从内部信息的共享到外部信息的接入、聚合、转发、权限控制,并以高内聚、低偶合的设计理念,达到零码组装即可实现服务的接入和信息的共享,最终实现不动产信息的便捷共享交换,为持续推进“互联网+”不动产便民服务打下坚实基础,也为其他政府部门信息共享、资源整合、联合审批提供了经验。 相似文献
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采用Landsat TM数据分析了阿克苏河—塔里木河断面水质污染状况,通过波段的DN值和常规监测数据建立能反映水质状况的
污染物监测模型。结果发现,将2000年常规监测数据代入模型后,与遥感数据的结果基本吻合| 重建阿克苏河—塔里木河的连续水体
污染变化曲线,得出污染物浓度随着远离上游而增加。 相似文献
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ZHAN F. Benjamin 《地球空间信息科学学报》2011,(1)
Although it is well known that coseismic gravity changes take place during an earthquake, previous research has not yielded convincing evidence demonstrating that significant gravity changes occur before large earthquakes. Furthermore, even if we suspect that gravity changes occur before large earthquakes, we have yet to demonstrate how to consistently observe these changes for useful earthquake forecast that would bring benefits to society. We analyzed ground gravity survey data obtained in 1998, 2000, 200... 相似文献
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Piyoosh Rautela Ramesh Chandra Lakhera 《International Journal of Applied Earth Observation and Geoinformation》2000,2(3-4)
The area around Sataun in the Sirmur district of Himachal Pradesh, India (falling between the rivers Giri and Tons; both tributaries of the Yamuna River) was studied for landslide vulnerability on behalf of the inhabitants. The study was made using extensive remote sensing data (satellite and airborne). It is well supported by field evidence, demographic and infrastructural details and aided by Geographic Information System (GIS) based techniques. Field observations testify that slope, aspect, geology, tectonic planes, drainage, and land use all influence landslides in the region. These parameters were taken into consideration using the statistical approach of landslide hazard zonation. Using the census data of 1991, vulnerability of the populace to the landslide hazard was accessed. As most of the infrastructure in the region is concentrated around population centres, population data alone was used for vulnerability studies. 相似文献
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GNSS系统及其技术的发展研究 总被引:3,自引:1,他引:2
阐述了国际上卫星导航系统的总体发展,对美、俄、欧、中的四大全球系统,以及相关的区域系统和增强系统进行了简单的介绍,研究分析了GNSS系统及其技术的发展趋势,同时分析了我国Compass全球系统面临的机遇和挑战,并提出了我国未来工作的建议. 相似文献
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“4D”技术及其应用 总被引:13,自引:0,他引:13
介绍“4D”(即数字地面模型、数字正射影像、数字栅格地图和数字线划地图)系列产品的生产流程、关键技术、及其在耕地保护、防灾减灾救灾和城市规划等方面的应用方法。 相似文献
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《International Journal of Digital Earth》2013,6(1):66-87
Abstract Virtual Australia is not a well-defined or agreed concept. This discussion paper conceptualises Virtual Australia as a ‘virtual [digital] model containing and representing all non-trivial objects and their contextual environment – from blue sky to bedrock – in real world Australia’. It describes a scenario for Virtual Australia, one or two decades from now, in which the locations and conditions of non-trivial objects and their environment are updated automatically through a combination of remote sensing and wireless communication technologies in support of a ‘Supranet’. It then examines the concept of the ‘Supranet’ – a pervasive information network based largely on wireless technology linking the physical world to a virtual model in real time – and develops and discusses three principal characteristics of the Supranet: the ability to have or collect specific information (know); the ability to process information (think); and the ability to communicate that information. If, in the near future, any or all non-trivial devices are to some extent able to know, think and communicate, the potential for object autonomy will be realised. 相似文献
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Toward seamless indoor-outdoor applications: Developing stakeholder-oriented location-based services
Kohei OGAWA Edward VERBREE Sisi ZLATANOVA Naohiko KOHTAKE Yoshiaki OHKAMI 《地球空间信息科学学报》2011,14(2):109-118
Location-Based Services (LBS),an emerging new business based on smartphone and mobile networks,are becoming more and more popular.Most of these LBSs,however,only offer non-seamless indoor/outdoor applications and simple applications without giving stakeholders the chance to play an active role.Our specific aim is to solve these issues.This paper presents concepts to solve these issues by expanding the Open Location Services Interface Standard (OpenLS) to allow seamless indoor/outdoor positioning and to extend the content of the services to include information recommended by stakeholders. 相似文献