Multi-Sensor Context-Awareness in Mobile Devices and Smart Artifacts

The use of context in mobile devices is receiving increasing attention in mobile and ubiquitous computing research. In this article we consider how to augment mobile devices with awareness of their environment and situation as context. Most work to date has been based on integration of generic context sensors, in particular for location and visual context. We propose a different approach based on integration of multiple diverse sensors for awareness of situational context that can not be inferred from location, and targeted at mobile device platforms that typically do not permit processing of visual context. We have investigated multi-sensor context-awareness in a series of projects, and report experience from development of a number of device prototypes. These include development of an awareness module for augmentation of a mobile phone, of the Mediacup exemplifying context-enabled everyday artifacts, and of the Smart-Its platform for aware mobile devices. The prototypes have been explored in various applications to validate the multi-sensor approach to awareness, and to develop new perspectives of how embedded context-awareness can be applied in mobile and ubiquitous computing.     

面向新一代移动通信的智能移动通信技术

第三代系统移动通信,其最重要的技术特征将是智能移动通信技术,即系统的各功能模块将由智能化处理单元来实现.本文在论述了智能移动通信技术在新一代移动通信系统中的地位和作用后,就智能天线、智能传输、智能接收、和智能化通信协议等方面的技术思想、研究成果和发展水平进行了综合评述.最后,讨论了智能移动通信技术将出现的进一步发展.     

智能移动终端的位置隐私保护技术

从位置隐私保护理论模型和位置隐私保护方法两个方面入手,对智能移动终端上的位置隐私保护研究现状进行了探讨,重点研究当前模型和方法的优缺点以及各自的适用场景;结合智能终端和移动互联网的发展趋势,指出当前位置隐私保护技术存在的问题,对未来的研究方向提出了建议。     

A Mission-Oriented Coordination Framework for Teams of Mobile Aerial and Terrestrial Smart Objects

Very recently, the paradigm of the Internet of Mobile Things (IoMT), in which smart things can be moved or can move autonomously whilst remaining accessible and controllable remotely, has been the object of a great attention in the research community. In this context, the paper proposes and investigates a novel framework to support both the management and the collaboration of Mobile Smart Objects (MSOs) considered as terrestrial and aerial drones (i.e., UAVs, UGVs). MSOs are equipped with embedded sensors and/or actuators and can move autonomously always remaining connected, accessible and controllable. The proposed framework allows the programming and management of smart drones and the coordination of teams of drones according to a mission-oriented paradigm. Coordination is dynamically enabled by specific executive parameters and system conditions (i.e., residual energy, computational power, abilities offered by specific on board sensors). To evaluate the effectiveness and the reliability of the proposed framework, a real testbed was created using off-the-shelf drones.     

可手机监控的智能纸尿裤电子系统

该文主要阐述设计一款可手机监控的智能纸尿裤电子系统,纸尿裤中嵌入着微型的温度传感器和湿度传感器,并通过蓝牙设备将采集到的四路温度值和一路湿度值传给手机,通过手机APP上面的湿度值来判断要儿是否尿尿,触发手机铃声报警,及时更换纸尿裤,且通过温度的平均值判断要儿体温是否处于健康状态.     

功能丰富的智能移动设备推动连接器技术小型化

智能电话和其它无线移动设备就像是消费电子行业的一只800磅重的大猩猩,如今移动设备市场占据接近36%的电信市场份额,而且其销售量继续高速增长。自2010年7月以来,移动设备用户已突破50亿大关,全球市场渗透率约为73%。从统计的角度来看,今天世界上拥有移动电话的人数已超过了获得电力供应的人数。消费者购买智能电话、平板电脑和其它智能移动设备     

移动通信系统中的智能天线技术

论述了现有系统面临着提高系统容量和改善通信质量的双重压力,而智能天线技术引入空分多址的概念,能够有效地提高系统容量。分析了智能天线技术的原理;给出了两种时分多址系统中的智能天线系统结构和比较;介绍了智能天线技术中的自适应波束合成算法。     

Electronic Controlled Energy Storage Devices and Applications in Future Smart Grid

The electric industry is being transformed from a centralized network to one that is less centralized and allows more consumer interaction in the form of a smart grid.     

智能终端系统安全性研究

对智能终端所面临的安全威胁及安全需求进行了研究,分析比较了当前主流智能终端操作系统的安全特性、架构和机制,并针对现有安全问题及机制提出了安全增强方法,最后对智能终端系统未来发展趋势进行了预测分析。     

主流智能电视设备操作系统发展状况解析

本文介绍了目前市场上主流智能电视设备操作系统的发展状况以及主要特性,通过对各操作系统的比较分析来探寻智能电视设备的技术发展趋势,并在广电行业面向互联网进行技术革新的大背景下,挖掘在广电DVB+OTT演进过程中相关值得关注的问题.     

移动通信环境中的智能天线系统

智能天线技术是第三代移动通信中的关键技术之一。本文从移动通信环境传播的特点出发，分析了智能天线如何克服恶劣的移动环境以及它对提高系统覆盖范围，减少干扰，提高系统容量等方面所起的作用。本文还介绍了智能天线技术中的自适应算法。     

PCC系统构筑智能移动宽带

通过对PCC架构、PCC业务实现原理的分析,结合中国联通福建分公司PCC建设实例,探讨PCC架构如何构建智能移动宽带,以实现精细化管控,在提高运营商收益的同时,提升用户的网络体验。     

移动设备信息安全保护系统与方法

随着信息技术的快速发展,越来越多的企事业单位采用电子技术来处理日常事务,这给企业的信息安全保密工作带来了巨大的挑战,尤其是在笔记本电脑上的数据。文中采用基于角色控制的访问控制模型,综合利用现有技术,提出移动电子设备信息安全保护系统与方法。这样,既能满足员工在公司内网或脱离内网环境下正常工作、加班等业务需求,同时也能满足在特定条件下正常使用笔记本电脑处理私人事务的需要。     

电子百科

码分多址（CDMA）;蜂窝式移动电话系统;手机TV-OUT;     

每月新品

MCU/DSP/CPU英特尔至强处理器5400系列/双核英特尔至强处理器5200系列英特尔宣布推出面向嵌入式市场的全新处理器(具有长达7年的生命周期支持)、芯片组及电信级服务器。新款处理器基于高k金属栅极晶体管技术,并采用先进的45nm制程工艺,具体产品包括四核英特尔至强处理器5400系列和双核英特尔至强处理器5200系列。     

采用ADuC7026和MEMS的无线遥控智能探测避险小车设计

本设计采用ADI的高性能ARM7-core MCU ADuC7026和MEMS传感器ADXL345作为核心器件,分别完成系统控制和小车姿态控制,外围辅以超声波模块和红外传感器实现探测避险功能.同时,利用ADuC7026丰富的I/O接口,扩展各种传感器,用于实时采集现场数据.从而实现灾后现场数据收集的自由移动载体并通过nRF24L01模块与远程控制中心进行无线通信,最终完成灾难现场数据的实时采集与分析.是一个高效、实时、低成本解决方案.     

移动智能终端安全测评体系的演进与革新

总结了信息技术安全评价通用准则在移动智能终端领域的演进与革新,分析了目前针对智能终端和移动应用的防护轮廓及适用范围,提出了推进标准化、展开测评等相关措施建议.     

An Autonomous Host-Based Intrusion Detection System for Android Mobile Devices

Intrusion Detection System (IDS) is crucial to protect smartphones from imminent security breaches and ensure user privacy. Android is the most popular mobile Operating System (OS), holding above 85% market share. The traffic generated by smartphones is expected to exceed the one generated by personal computers by 2021. Consequently, this prevalent mobile OS will stay one of the most attractive targets for potential attacks on fifth generation mobile networks (5G). Although Android malware detection has received considerable attention, offered solutions mostly rely on performing resource intensive analysis on a server, assuming a continuous connection between the device and the server, or on employing supervised Machine Learning (ML) algorithms for profiling the malware’s behaviour, which essentially require a training dataset consisting of thousands of examples from both benign and malicious profiles. However, in practice, collecting malicious examples is tedious since it entails infecting the device and collecting thousands of samples in order to characterise the malware’s behaviour and the labelling has to be done manually. In this paper, we propose a novel Host-based IDS (HIDS) incorporating statistical and semi-supervised ML algorithms. The advantage of our proposed IDS is two folds. First, it is wholly autonomous and runs on the mobile device, without needing any connection to a server. Second, it requires only benign examples for tuning, with potentially a few malicious ones. The evaluation results show that the proposed IDS achieves a very promising accuracy of above 0.9983, reaching up to 1.

     

便携天馈系统在移动电离层测高中的应用

针对移动电离层测高中对天线小型化和快速便携架设的要求,设计了由倒V天线和智能调谐器组成的便携式1 k W短波天馈系统。根据移动电离层测高的特点,对使用的倒V天线进行了仿真,并给出了天线的结构,同时也分析了智能调谐器的原理,特别在1 k W大功率工作条件下调谐器内部的关键匹配网络设计需要注意的问题,该系统在短波频段内以200 k Hz步进扫描,平均驻波为1.32,全频段预置调谐时间在1 min以内。     

移动设备处理器供电设计

本文介绍了如何为移动设备常用的不同处理器供电,以及在便携应用中的处理器专用电源芯片如何在提高效率的同时降低功耗。