A modular approach to the communication protocol and standard for multimedia information: A review

The paper focuses on a modular approach to design of a communication protocol and an MPEG-like standard for multimedia information processing. Generally, the following basic problems can be considered: (i) selection, (ii) composition, and (iii) combinatorial evolution and forecasting. Here, the composition problem is examined. The ZigBee Protocol for wireless sensor networks is studied as an example for the modular design. A generalized MPEG-like standard is considered as a representative example as well. Morphological (modular) system design is used for composition of the elements (components) of the protocol/standard. The solving process is based on Hierarchical Morphological Multicriteria Design (HMMD): (i) multicriteria selection of alternatives for system components, (ii) synthesis of the selected alternatives into a resultant combination. Numerical examples illustrate the design process.     

Modular system synthesis: example for composite packaged software

The paper describes a framework for synthesis of a composite system (packaged software) on the basis of interconnected system components when the components and their interconnection (compatibility) are evaluated upon ordinal coordinated scales. Hierarchical multicriteria morphological design is used including generation of design alternatives (DAs) for system components and their combining into the target system while taking into account weighted interconnectibility among DAs. This composition problem is based on building a morphological clique. Composite decisions are analyzed by a quality vector which involves the ordinal effectiveness of components and their interconnection. A numerical example demonstrates the hierarchical design (integration) of the system, improvement of obtained design decisions, and multistage design.     

Data link layer design issues in a home automation system

In this paper, we examine design issues relevant to the implementation of a data link layer of a home automation system based on the Electronics Industries Association (EIA) Consumer Electronics Bus (CEBus). The hardware and software components of the system are described along with several techniques that enhance the performance of the system, allow for a faster implementation using off-the-shelf components and provide low overhead. The proposed design has been incorporated into a basic home automation system (BHAS) that is used as a testbed for alternative technologies and algorithms.     

Design and Realization of an NFC-Driven Smart Home System to Support Intruder Detection and Social Network Integration

The Internet of thing (IoT) emerges as a possible solution to realize a smart life in the modern age. In this article, we design and realize a novel near field communication (NFC)-driven smart home system for IoT, which integrates the wireless sensor network (WSN), social networks, and the cloud computing. NFC technology provides a way for users to exchange information between them and the system by simply contacting. So, we propose to use NFC as the system drive in the architecture, such that users can intuitively interact with the system and deliver their intentions. Then, the corresponding service over the system will control or adjust the things at home to fit users' needs. Furthermore, the proposed system provides a platform for developers to easily and rapidly implement their smart home related services. In the system, WSN sensing and control, NFC communications and identification, user profile management and preference analysis, and social network integration are all provided as platform services. We will show how the system works for home automation, intruder detection, and social network sharing.     

基于Python脚本的智能家居业务测试脚本设计及实现

本文根据智能家居系统的特点和要求,介绍了我们研发的自动化测试平台。在此平台基础上,提出了基于Python脚本层次化的架构设计方法,并通过搭建智能家居中具体的门磁开关业务,进行了测试用例分析,验证了智能家居业务的功能和可靠性测试。通过Python语法编写而成的测试方法,具有良好的描述能力,并且产生的测试方法易于维护,该方法对于开展智能家居业务测试具有重要意义。     

Users’ Preferences for Smart Home Automation – Investigating Aspects of Privacy and Trust

Smart home automation provides residents with relief and convenience in everyday life and allows for self-determined aging in place. Yet, market penetration is offset by user concerns related to privacy and trust issues: With increasing system complexity, users may perceive a loss of control and fear technical unreliability. While barriers to acceptance in terms of privacy and trust are well understood when considered separately, they are hardly investigated in conjunction so far. We conducted a quantitative study using Adaptive Choice-Based Conjoint Analysis via an online questionnaire. We explored how aspects of privacy and trust determine the willingness to use smart homes from the perspective of (future) users (n = 137, 18 to 64 years of age), and also with respect to the level of automation and application field. Results show that semi-automated systems are rather preferred than fully automated smart home technology. The perceived reliability of automation is the most important acceptance determinant, followed by the location of data storage. Whereas the awareness to use (e.g., recommendations), the type of data, and application field are less important factors for the overall willingness to use smart homes. Findings inform scientists in the field of human-automation interaction and technical developers of smart home automation for technology innovation adapted to user needs.     

基于433无线收发模块的物联网智能家居系统设计

随着人们生活质量的提高和科技的发展,享受物联网智能家居生活已成趋势。然而,高成本、功能复杂的物联网智能家居也仅仅在豪宅中应用。鉴于此,有必要设计一种低成本、低功耗的智能家居系统。将433 MHz无线收发模块应用于智能家居,其低成本、低功耗和小尺寸封装等特点,能较为理想地完善整个智能家居系统。让中低收入人群体验物联网智能家居生活不再是遥不可及的梦想。     

一种智能家居系统的集群识别调度的研究

针对物联网智能家居的家居集群特点和拓扑结构需求,设计了一种网络化识别及调度的管理系统应用方案.该系统采用无线网络对家居各类集群实现数据的采集和命令控制,并通过基于ARM-Linux的智能家居本地终端实现了线程的处理.最后,详细介绍了一种面向智能家居的包处理技术和集群识别调度的算法,在家居动态场景的基础上配置了模块化的功能需求,增强了智能家居系统的动态易扩展性要求..     

基于Cortex-M3微处理器的智能家居监控终端的设计

在分析智能家居系统的组成和结构的基础上,提出了通过Internet网络对家用电器和安防设备进行远程监控的方法.给出了基于Cortex-M3微处理器的智能家居控制终端的硬件设计方案和实现方法,介绍了控制终端软件实现的原理和流程.本系统还专门设计了一款内嵌Zigbee模块的PDA方便用户在室内对家用电器进行控制.该系统结构...     

实现一种嵌入式智能家居系统的研究

本文在探讨嵌入式智能家居系统的内涵、特征及其功能的基础上,重点对嵌入式智能家居系统的总体结构及网关设计、嵌入式智能家居系统的终端总体设计、嵌入式智能家居系统的用户控制设计三个方面,进行了较为系统的研究。     

VGA视频延长设备的智能手机调试方法

为解决VGA视频延长设备接收端在调试初始阶段的盲操作问题和复杂的手工操作问题,结合智能手机的应用设计提出了一种在设备接收端扩展蓝牙模块与智能手机通信进行终端调试的方法。经实验验证,该方法能有效便捷地调整显示器输出画质。     

基于ARM-Linux嵌入式系统的多进程并发服务器设计

随着物联网、智能电网、智能移动设备的发展,我们将能在任何时候任何地方获取我们所需的信息,本文设计一款基于ARM—Linux嵌入式系统的多进程并发服务器。它拥有传统服务器的功能,可远程访问和操作,同时又具有体积小、噪声低、低功耗、低成本的优势,非常适合用于智能楼宇的家用服务器。     

电气自动化控制设备可靠性探究

随着经济的发展,我们国家的电气事业也不断的发展,电气自动化空时设备的可靠性就成为了一个重要性的话题;从我国电气自动化控制设备现状和我国电气自动化控制设备必要性为出发点,然后分析了电气自动化控制设备可靠性的检测,最后从电气自动化控制设备提高设计的可靠性、合理选用零部件、电子元器件的选择三个方面探究了提高电气自动化控制设备可靠性的策略.     

基于ARM和Linux的智能嵌入式网络监控系统

介绍了当前智能家居系统发展的现状,并对现有智能家居系统中所存在的不足进行分析,提出了一种基于ARM和Linux的智能家居网络监控系统的解决方案,完成了系统功能设计,包括基于Linux的设备驱动程序和基于CGI的应用程序设计,并通过远程检测系统,呈现出智能家居监控系统的监控效果,实现了网络监控的目的。     

Run-Time Integration of Reconfigurable Video Processing Systems

Embedded systems in field-programmable gate arrays (FPGAs) can be customized and adaptive if assembled from modular components at run time. This paper examines realizing run-time system assembly by extension of platform-based design. Two major challenges are addressed in this paper. First, the design of a reconfigurable platform architecture suitable for run-time system assembly is described. Different systems are constructed by integrating the platform architecture with different modular components, which employ the communication infrastructure supplied by the platform in order to interact. Second, where on-chip communications channels use shared media, we propose techniques for modeling the intermodule communication behavior based on statistical time-division multiplexing. The proposed techniques enable system designers to guarantee that logical communication requirements between the adjunct modules can be satisfied by the infrastructure. An in-depth analysis is presented and then verified with cycle-accurate simulations for an example reconfigurable platform for real-time video applications.     

Chain Extension of Stimuli‐Responsive Polymer Brushes: A General Strategy to Overcome the Drawbacks of the “Grafting‐To” Approach

Stimuli‐responsive polymer brushes are smart materials for the design of bio‐interactive and responsive interfaces. The “grafting‐to” approach is a convenient preparation procedure that allows the modification of surfaces with preformed and most notably well‐defined functionalized macromolecules. However, the shortcoming of this approach is an intrinsic limitation of the grafting density, which in turn affects the stimuli‐responsive properties of the brush system. Here, a general strategy to overcome this limitation and to simultaneously improve the switching behavior of a temperature‐responsive poly(N‐isopropylacrylamide) (PNiPAAm) brush is reported. A technically simple processing step is used in combination with the thermal azide–alkyne cycloaddition to perform the chain extension of alkyne‐functionalized PNiPAAm brushes with azide‐functionalized PNiPAAm molecules.     

Human machine interactive system on smart home of IoT

Along with the development of human-computer interaction technology and improvement of people's living standards, study of Internet of things (IoT) has become the focus for years. Meanwhile, smart home system has drawn more and more attention in IoT. In correlative research, artificial psychology theory and the harmony of human-computer interaction play an important role in smart home of IoT. In this study, software platform of the management system in smart home is designed, and users are Chinese. So the language in the system is Chinese. To analyze the basic interaction between users and computer, calendar, weather forecast, internet browsing, several electrical models are designed. To deal with the humanized interaction between human and computers, some features are implemented such as: analysis of emotional models, creation of the emotional models, text emotion recognition, and other basic functions in human-computer interaction.     

基于Internet的智能家居控制终端的设计与实现

通过Internet实现对智能家居的远程监控是当前技术研究的热点。为此分析智能家居系统的组成和结构,提出通过Internet对智能家居系统进行远程监控的方案,给出基于微控制器SX52的智能家居控制终端的硬件设计方案和实现方法,介绍控制终端软件实现的原理和流程,在对TCP/IP协议分析的基础上,阐述控制终端中协议处理的原理和实现方法。这些原理和方法对智能家居系统的设计具有参考价值。     

Lifetime analysis of wireless sensor nodes in different smart grid environments

Wireless sensor networks (WSNs) can help the realization of low-cost power grid automation systems where multi-functional sensor nodes can be used to monitor the critical parameters of smart grid components. The WSN-based smart grid applications include but not limited to load control, power system monitoring and control, fault diagnostics, power fraud detection, demand response, and distribution automation. However, the design and implementation of WSNs are constrained by energy resources. Sensor nodes have limited battery energy supply and accordingly, power aware communication protocols have been developed in order to address the energy consumption and prolong their lifetime. In this paper, the lifetime of wireless sensor nodes has been analyzed under different smart grid radio propagation environments, such as 500 kV substation, main power control room, and underground network transformer vaults. In particular, the effects of smart grid channel characteristics and radio parameters, such as path loss, shadowing, frame length and distance, on a wireless sensor node lifetime have been evaluated. Overall, the main objective of this paper is to help network designers quantifying the impact of the smart grid propagation environment and sensor radio characteristics on node lifetime in harsh smart grid environments.     

Power Optimization Strategy Considering Electric Vehicle in Home Energy Management System

With the development of smart grid, residents have the opportunity to schedule their household appliances (HA) for the purpose of reducing electricity expenses and alleviating the pressure of the smart grid. In this paper, we introduce the structure of home energy management system (EMS) and then propose a power optimization strategy based on household load model and electric vehicle (EV) model for home power usage. In this strategy, the electric vehicles are charged when the price is low, and otherwise, are discharged. By adopting this combined system model under the time-of-use electricity price (TOUP), the proposed scheduling strategy would effectively minimize the electricity cost and reduce the pressure of the smart grid at the same time. Finally, simulation experiments are carried out to show the feasibility of the proposed strategy. The results show that crossover genetic particle swarm optimization algorithm has better convergence properties than traditional particle swarm algorithm and better adaptability than genetic algorithm.