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One of the constant challenges faced by the Android community, when it comes to the safety of the end users, is the ability of applications to load code
dynamically. This mechanism may be used for both legitimate and malicious purposes. A particular problem is the fact that remote code is not analyzed
during the verification process because it doesn’t have to be present in the application package at the publishing time. Previous research has shown that
using this concept in an insecure way can cause serious consequences for the user and his device. Solving this problem has proved to be a big challenge
that many have tried to address in different ways. This paper deals with the problem of dynamic code loading on Android platform. For the purpose of this
paper, an application that demonstrates the abuse of the dynamic code loading concept has been developed and published in the Google Play Store. Also,
a proposal of the modified Android ecosystem that should address this problem and improve the security of the whole platform is given. 相似文献
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In a cooperative convoy, a vehicle interacts with other vehicles, service providers and infrastructure systems to make the travel safe and convenient. Through these interactions a vehicle can share its domain-specific information–acquired from service providers and infrastructure–with other vehicles in the convoy. Such interactions are subject to defined agreements and constraints between the entities (i.e., vehicle to vehicle, vehicle to service provider, and so on), which we refer as (social) interaction-relationships. Such relationships, however, may need to adapt with the changes of requirements. Also a driver may want to automate certain interactions to reduce distraction during driving. A cooperative convoy telematics system should support collaboration (i.e., allow drivers to share specific travel information) and coordination (i.e., allow drivers to automate interactions), and be able to adapt to cope with the changes of requirements.In this paper, we address these issues and demonstrate how our social interaction-relationships modelling technique can be exploited to develop a telematics system, called SocioTelematics, providing such functionalities. This system allows collaboration and coordination preferences explicitly specified and updated to cope with the changes. In particular, our service oriented implementation enhances adaptability of the system, making it easily deployable and changeable. We have implemented a prototype system based on a client–server architecture where the client application is developed for Android and the server is running on the Amazon cloud. The system’s performance and resource consumption were quantified using real life experiments that show the feasibility of our approach. 相似文献
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利用移动互联网技术为汽车用户提供基于位置的服务是智能汽车的一个重要内容.当前汽车服务领域,提供的服务只是定位导航等基本服务,针对汽车用户提供更为个性化服务的系统几乎没有.为了方便汽车用户确定车辆位置,实时了解车辆内的信息状况,在深入分析基于车载端移动应用现状的基础上,提出并实现了一套基于Android的车辆服务系统的设计方案.系统由信息管理模块和地图模块组成,信息管理模块提供了用户车辆内甲醛浓度、PM2.5浓度和PM10浓度等信息的显示,地图模块实现了对用户车辆位置定位、行车导航以及附近服务搜索的功能.该系统在实际运用中运行稳定,定位精度较高、路线规划准确,和传统的地图相比可实时刷新车辆位置,其功能的设计更适用于汽车驾驶者. 相似文献
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从数据采集、运动状态识别及识别结果显示3个方面,设计基于Android的运动状态识别分析系统。在硬件电路方面,本系统使用MPU6050加速度传感器采集数据,并做预处理。在软件方面,运动状态识别算法在手机APP的后台实时处理数据。首先对接收的6组数据进行预处理,检测并统计识别步数;其次运动周期提取,计算挥拍次数及平均挥拍速度;然后对运动周期内的数据进行标准化处理,调用个人特征数据库进行运动识别,实现越用越准;最后将结果通过基于Android的手机APP界面进行显示。在系统测试中,能够计算出挥拍次数、平均挥拍速度、步数,同时能够识别出羽毛球、乒乓球两种运动模式和高远球、弧旋球等8种运动动作,识别率达到90%以上。 相似文献
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为满足人们对实时信息的获取需求,结合传感器网络和移动设备发展的现状,提出了一种在Android手机上获取和可视化传感器观测信息的方案。基于Android平台,设计和开发了一款智能终端应用,实现了通过与传感器观测服务(SOS )的交互来实时获取传感器的观测信息。通过该应用,可以按时间、空间、传感器类型查找用户感兴趣的传感器信息以及观测数据,并最终在手机终端上显示。应用结果表明,提出的方案能够在Android手机终端实时获取传感器信息,具有可行性、实用性。 相似文献
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目前,在我国的电力、燃气、热力、自来水行业,大部分仍然采用无线远程集抄和手持抄表机的人工抄表模式。随着智能手机的普及,手机的功能和质量已经远远强于一般的数据采集手持设备。使用手机抄表软件可以轻松实现日常数据采集抄录工作。并可以使用手机的网络实现数据的及时上传下载。本文提供一种用于热量表的智能手机蓝牙抄表的抄收方法,该方法实现使用一部普通的android智能手机实现对热量表的抄读和设置。由于采取通用的智能手机平台,不依赖硬件设备,不需要定制产品,只需要额外加一个蓝牙转串口模块、采用相同的手机操作系统程序代码就可以通用,智能手机平台在编程工具方面都具有很好的扩展性,本方法在功能上扩展性强;智能手机平台在通信通道上有较强的延伸性,能够依照本方法搭建很好的解决方案,进行数据通信等。 相似文献
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Android系统之所以能以非常迅猛的趋势入侵并占有智能手机市场,关键在于该系统具有开源的巨大优势。从Android系统出现到现在,医疗、娱乐、交通、饮食等各种复杂的领域都有Android的身影,估计在不久的将来,Android可能会出现在生活中的各个角落。伴随着Android智能手机的普及,导致了无论处于哪个岗位上的人员,智能手机都始终不离手。许多工作岗位上的人员在工作的时候都需要一些简单的工具,比如说尺子、量角器等。论文主要从两个方面阐述了实现基于Android平台的尺子的测量原理以及其他功能的原理,特别是根据用户不同的自身情况来实现不同的方案。 相似文献
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