基于智慧城市架构中的安全防范体系研究

本文首先阐述了智慧城市建设的重要意义,其次分析了智慧城市安全运营面临的主要风险,包括顶层设计风险、组织机构风险、技术风险、运行模式风险以及信息安全风险,最后基于上述风险讨论了如何构建智慧城市安全运营的安全防范体系,以期为业内人士提供有益参考。     

智慧城市的应用体系架构研究

世界各国都在探索城市发展的新模式,智慧城市是当今世界发达国家在推进产业和城市信息化进程中的前沿理念和探索实践,是对互联网技术、传感器技术、智能信息处理等技术的高度集成。智慧城市的体系结构包括基础设施建设、信息资源开发与利用体系以及智慧应用体系等,其中智慧应用体系与城市的发展以及百姓的生活息息相关,包括智慧交通、智慧医疗、智慧能源、智慧公共管理等。     

基于区块链的智能服务交易跨链服务框架与通信机制

由于不同区块链上的区块链服务间缺乏有效通信机制,链与链之间难以形成有效互联互通.在智能服务交易过程中,交易主客体之间不仅仅是数据资产的单项转移,而且其服务范围扩展涵盖到更为广阔的数字资产转移场景.设计一种智能服务交易的跨链通信服务框架,并采用基于组件式、模块化设计,使智能服务交易主客体较为容易地接入服务框架,实现跨链可...     

Adaptive and context-aware service composition for IoT-based smart cities

Smart Cities are advancing towards an instrumented, integrated, and intelligent living space, where Internet of Things (IoT), mobile technologies and next generation networks are expected to play a key role. In smart cities, numerous IoT-based services are likely to be available and a key challenge is to allow mobile users perform their daily tasks dynamically, by integrating the services available in their vicinity. Semantic Service Oriented Architectures (SSOA) abstract the environment’s services and their functionalities as Semantic Web Services (SWS). However, existing service composition approaches based on SSOA do not support dynamic reasoning on user tasks and service behaviours to deal with the heterogeneity of IoT domains. In this paper, we present an adaptive service composition framework that supports such dynamic reasoning. The framework is based on wEASEL, an abstract service model representing services and user tasks in terms of their signature, specification (i.e., context-aware pre-conditions, post-conditions and effects) and conversation (i.e., behaviour with related data-flow and context-flow constraints). To evaluate our composition framework, we develop a novel OWLS-TC4-based testbed by combining simple and composite services. The evaluation shows that our wEASEL-based system performs more accurate composition and allows end-users to discover and investigate more composition opportunities than other approaches.     

咸阳市智慧城市发展愿景

从“一卡通”到“智慧城市”,从政府提出智慧咸阳到首批创建国家智慧城市试点,文章明确了融合智慧理念、规划多个领域、构建支撑体系、梳理重点项目的智慧咸阳发展愿景,并论述了智慧城市建设对咸阳市城市发展的作用。     

北斗卫星在智慧城市建设中的应用评述

在“数字城市”的概念后提出了“智慧城市”,用来解决或减轻城市化和经济转型所造成的社会问题。随着我国北斗卫星组网日益完善,以及物联网、云计算等技术的快速发展,使城市运行管理更加智慧化提供了可能性。通过智慧交通、智慧减灾、智慧社区等北斗项目积极探索“智慧城市”的建设,使北斗真正融入百姓生活,逐渐建立我国北斗在社会中的置信度、认可度。对北斗卫星顺利投入我国全方位、多维度应用领域具有重要意义,以便更好服务于城市建设和管理,进一步推进城市和谐发展。     

CSP在基于智能卡的移动终端中的开发与应用

IPSec VPN技术因其方便、安全性高等特点,成为现在普遍采用的一种增加网络安全性的方法。智能卡是一张内含嵌入式集成电路芯片的信用卡般大小的电子卡,它将密钥对与证书封在卡内,能够使加密操作在卡内进行,从而保证私钥不需出卡,大大提高了安全性。IPSec VPN和智能卡的结合在网络中应用已经越来越广泛。智能卡软硬件相结合的CSP能够通过微软的Crypto API向应用程序提供各种网络安全应用。该文在移动安全终端系统的背景下,详细介绍了基于智能卡的CSP的设计与开发过程。     

物联网技术在智慧城市建设中的应用

通过分析物联网的概念及特点,总结了物联网技术在智慧城市建设中的核心应用。同时对城市智慧交通、智慧医疗、智能电网、智慧物流、智慧水利、智慧旅游、智慧校园等方面的物联网应用进行了描述。     

基于情境感知技术的智慧城市服务系统研究

随着城市规模越来越复杂,全国各级政府都在进行城市物联网和信息化建设,目前虽然搭建了互联骨干网和部署了大量的传感器,收集了众多的城市行为数据,但落后的信息管理模式难以体现信息价值,将信息体现在服务提升之中,造成信息资源的极大浪费。因此,将情境感知技术引入到智慧城市服务的应用之中,构建了一个基于情境感知的城市服务系统,并通过情境信息采集、情境信息推理和服务配置模型等关键技术,实时感知城市内的情境需求,从而提供智能化的业务服务组合。最后通过一社区智慧街道管理系统来验证本文所设计的系统效果。     

The importance of public support in the implementation of green transportation in the smart cities

Smart cities are increasingly evolving, initializing new strategies, and programs that have a significant influence on policy making and scheduling while coexisting with urban facilities. To recognize urban planning offers to a smarter city context, it is now necessary to understand the contribution of the smart city in overall urban planning and vice versa. Currently, transportation has been seen as a connection to all aspects of life across the world. This article presents the results of a survey testing into whether the public supports the concept of green transportation in the smart cities. The green urban mobility model has been proposed to investigate urban traffic information to characterize important features of smart mobility in the smart cities. The development of intelligent transportation systems using the proposed model that makes traffic easier in the city to transport safe and more comfortable. The experimental results suggest the required factors of green transportation and realistic behavior of smart mobility.     

国内外智慧城市建设人才开发的经验借鉴

分析了国外智慧城市人才开发的经验,研究了国内先发城市智慧城市建设人才开发的实践,并总结了值得我国智慧城市建设人才开发的借鉴要点。以期望对于开发与构建智慧城市建设人才队伍,保障智慧城市建设具有一定的价值。     

边缘计算和云计算在智慧城市建设中的应用

文章主要对边缘计算、云计算的定义和特点及智慧城市的概念进行简单阐释,结合城市建设情况,分析边缘计算和云计算在智慧城市建设中应用的必要性,并提出二者的具体应用,希望充分挖掘边缘、云计算技术的优势,在二者相互补充的过程中实现智慧城市的建设,为实际智慧城市建设工作提供参考依据。     

智慧城市评估体系的研究与构建

智慧城市是一项复杂的系统工程,不仅需要规划、建设、运营管理,而且还需要评估、优化调整等环节来保证智慧城市建设的前瞻性、合理性、有效性和高效性.针对目前国内智慧城市建设过程中存在盲目建设、实际效果不显著等问题,在研究智慧城市组成诸要素及其关系的基础上,对智慧城市的评估体系进行理论探索,提出了构建以智慧城市评价指标体系、评估方法和优化策略为核心的智慧城市评估体系的方法,并通过实例证明该方法的可行性.     

杭州＂智慧城管＂建设探究

“智慧城管”是一项系统工程、惠民工程,是智慧城市建设的重要组成部分。建设“智慧城管”是全面建设小康社会、加强社会管理、实施新型城市化战略的要求。文章探讨了杭州“智慧城管”建设的战略定位,分析了杭州推进“智慧城管”建设的核心要素,以利于推动杭州“智慧城管”的进一步发展。     

A framework based on sparse representation model for time series prediction in smart city

Smart city driven by Big Data and Internet of Things(loT)has become a most promising trend of the future.As one important function of smart city,event alert based on time series prediction is faced with the challenge of how to extract and represent discriminative features of sensing knowledge from the massive sequential data generated by IoT devices.In this paper,a framework based on sparse representa-tion model(SRM)for time series prediction is proposed as an efficient approach to tackle this challenge.After dividing the over-complete dictionary into upper and lower parts,the main idea of SRM is to obtain the sparse representation of time series based on the upper part firstly,and then realize the prediction of future values based on the lower part.The choice of different dictionaries has a significant impact on the performance of SRM.This paper focuses on the study of dictionary construction strategy and summarizes eight variants of SRM.Experimental results demonstrate that SRM can deal with different types of time series prediction flexibly and effectively.     

A semi-Markov model for post-earthquake emergency response in a smart city

An earthquake significant on the Richter scale occurring in an area with a high population density requires an effective and equitable emergency response plan. Emergency resources are usually located in so-called responding centers. One of the first problems faced by disaster-response management personnel in the rapidly degrading post-earthquake conditions is to gage the hazard rate to which the disaster-affected area is subjected, estimate the time taken to bring the situation under control, also called restoration time, and select the appropriate responding center for relief-and-rescue activities. In this paper, we propose an elaborate semi-Markov model to capture the stochastic dynamics of the events that follow an earthquake, which will be used to quantify the hazard rate to which people are exposed and estimate the restoration time. The model will be further used, via dynamic programming, to determine the appropriate responding center. Our proposed model can be employed in conjunction with a variety of hazard scales and by collecting data on a few parameters related to emergency management. The model will be particularly useful in a smart city, where historic data on events following an earthquake would be systematically and accurately recorded.     

Analysis and design of a smart card based authentication protocol

Numerous smart card based authentication protocols have been proposed to provide strong system security and robust individual privacy for communication between parties these days. Nevertheless, most of them do not provide formal analysis proof, and the security robustness is doubtful. Chang and Cheng （2011） proposed an efficient remote authentication protocol with smart cards and claimed that their proposed protocol could support secure communication in a multi-server environment. Unfortunately, there are opportunities for security enhancement in current schemes. In this paper, we identify the major weakness, i.e., session key disclosure, of a recently published protocol. We consequently propose a novel authentication scheme for a multi-server envi- ronment and give formal analysis proofs for security guarantees.     

Towards a data‐driven IoT software architecture for smart city utilities

The Internet of things (IoT) is emerging as the next big wave of digital presence for billions of devices on the Internet. Smart cities are a practical manifestation of IoT, with the goal of efficient, reliable, and safe delivery of city utilities like water, power, and transport to residents, through their intelligent management. A data‐driven IoT software platform is essential for realizing manageable and sustainable smart utilities and for novel applications to be developed upon them. Here, we propose such service‐oriented software architecture to address 2 key operational activities in a smart utility: the IoT fabric for resource management and the data and application platform for decision‐making. Our design uses Open Web standards and evolving network protocols, cloud and edge resources, and streaming big data platforms. We motivate our design requirements using the smart water management domain; some of these requirements are unique to developing nations. We also validate the architecture within a campus‐scale IoT testbed at the Indian Institute of Science, Bangalore and present our experiences. Our architecture is scalable to a township or city while also generalizable to other smart utility domains. Our experiences serve as a template for other similar efforts, particularly in emerging markets and highlight the gaps and opportunities for a data‐driven IoT software architecture for smart cities.     

融合电信网络和企业应用的统一业务体系研究

从通用分布式中间件和业务流程自动化两个角度剖析了Web Services技术,指出目前用以实现分布异质企业应用即时和自动集成的Web Services技术、与实现电信网络资源对第3应用开放的Parlay API技术存在结合点。进一步提出了结合二者、能够统一整合电信网络资源和企业应用资源的业务体系,该体系具备统一资源整合、业务逻辑即时集成、业务流程自动化的优点,有望从中产生下一代杀手业务。     

基于Web服务与Agent的软件架构

为了更好地适应软件智能化和分布化的发展需求,在概述了Web服务技术和Agent技术的核心概念的基础之上,提出了基于Web服务与Agent的软件架构,并设计了该架构中的核心概念服务代理的结构.该架构很好地融合了Web服务技术与Agent技术各自的优点,结合了Web服务体系结构与多代理系统各自的优势,能够更加高效地构建出应用于发布环境中开放的、动态的、分布式的IT系统.