Policy conflicts in home automation

The nature of home automation is introduced. It is argued that end users should be able to define how the home system reacts to changing circumstances. Policies are employed as user-defined rules for how this should happen. The architecture of the Homer home automation system is briefly overviewed. The Homer policy system and the Homeric policy language it supports are explained. A technique is described for offline conflict analysis among policies (the analogue of the feature interaction problem). A substantial worked example shows how conflict detection is performed on a range of sample home policies.     

An ontology-based approach to conflict resolution in Home and Building Automation Systems

Ambient intelligent systems such as Home and Building Automation Systems (HBAS) are becoming evermore accepted and capable of actuating automatically on behalf of users to fulfil their requests or enable activities. However, when multiple users interact with such systems, the requirements of activities often interfere resulting in conflicting actuations which HBAS ought to automatically detect and resolve. Yet, despite recent advances in HBAS, no ambient intelligent solution has been reported that is adequately grounded on knowledge analysis.The contributions of this article are twofold. First, it reviews relevant literature on Ambient Intelligence, conflict detection, conflict resolution and knowledge representation in HBAS. Second, it proposes and validates an ontological framework for conflict detection and resolution backed by knowledge-based analysis. Effectively, the proposed solution performs automatic environment actuations maximizing users comfort and energy efficiency.     

Temporal 24-hour assessment of radio frequency exposure in schools and homes

Temporal radio frequency (RF) exposure from present and emerging technologies in sensitive microenvironments such as schools and homes is important for evaluations of compliance to international limits. For the first time, temporal 24-hour measurements of all present RF signals, including LTE (Long term Evolution), are performed with accurate spectral narrowband equipment in these environments where children are present. The largest maximal variations are obtained for the cordless telephony (DECT) signals (10.6 dB) and for the WiFi 2.4 GHz signals (12.7 dB), while variations of broadcasting signals and telecommunication signals were much lower namely, 2.9 dB and 3.3 dB, respectively. Thus, indoor sources exhibit the largest variations indoor and are the most critical for practical exposure assessment and comparison with existing guidelines. It is recommended to perform exposure measurements during school days as highest field values were measured then. All field values measured over 24 hour satisfied the ICNIRP reference levels.     

Home health care routing and scheduling: A review

In home health care (HHC) operations, nurses are scheduled and routed to perform various services at clients' homes. As this often requires a combination of vehicle routing and scheduling approaches, resulting optimization problems are complex and, hence, of high interest to stakeholders such as researchers, practitioners and policy-makers. With demand for HHC expected to increase substantially, future work is essential to decrease costs and to guarantee service quality. In this review, we provide a comprehensive overview of current work in the field of HHC routing and scheduling with a focus on considered problem settings. Recent advances in HHC optimization are highlighted and future research directions discussed.     

探究家庭全景声的国内发展现状(上)——以真力杜比全景声混录棚为例

随着数字科技与音频技术的不断发展,全景声家庭影院开始逐渐进入大众的生活。本文将就以真力(中国)的全景声混录棚为例,分析探究家庭全景声的国内发展现状,旨在通过对全景声混录棚的构建及参数概况等方面进行系统综述和具体案例分析,从而进行家庭全景声混录棚的搭建可行性的先期理论研究。     

新型城镇化背景下的中国农村土地制度变革研究

中国农村土地制度变革在即.文章首先讨论了在新型城镇化的历史背景下需要关注“三农”问题和农村土地制度变革,进而阐述中国农村土地制度的历史变迁、本质特征,分析其历史贡献和当前面临的制度困境,在此基础上研究主张私有化的激进土地制度变革及坚持集体化的保守土地制度变革两种不同的方式,及其与不同的城镇化策略结合后将会对中国城镇化进程产生深刻的影响.文章最后指出,在农村土地制度改革方向的选择上,笔者反对集体土地的私有化,而倾向于在土地集体所有制内部进行具体制度设计的优化和调整.     

智能家居发展现状解析

本文介绍了国内外智能家居市场两类主流的应用模式,分析了国内智能家居发展中存在的问题并提供了相应的解决思路,最后指明了我国智能家居行业的技术发展趋势。     

基于电信网的家庭网关

下一代网络(NGN)业务的驱动和FMC融合的推动,以家庭网关为核心的家庭网络成为目前关注的焦点.家庭网关标准还处于起草的起步阶段,论证了家庭网络组网模型、家庭网关基本业务、基本功能、关键技术(如接入技术)、QoS、安全、管理及所存在的问题.     

一种高度集成的数字社区管理系统

本文在分析高档数字社区的物业管理和智能化需求的基础上,介绍了一种将物业管理和智能化系统有机地结合在一起的高度集成的数字社区管理系统,为数字社区提供了一种全新的解决方案。     

虚拟家电技术研究

针对网络家电功能不易扩展的问题,提出了基于计算机(或嵌入式计算机)中间软件的虚拟家电技术方案。通过归纳白色家电(小家电)基本的功能建立网络家电功能向量表。分析网络家电功能向量表,使表中的功能和网络虚拟数字/模拟通向相对应。设计对家庭网络虚拟数字/模拟通道读写的应用层协议。通过建立虚拟家电的实例表明:虚拟家电对硬件资源要求少,更易于与人工智能方法结合,有利于在家电信息互联基础上的家庭能量和物质资源的整合。