基于Intranet的可视对讲的联网设计与实现

由于某小区在智能化设计时,考虑到地质条件和当时的技术,未将可视对讲子系统进行整个小区的联网设计.但在现在条件具备的情况下,从投资者角度考虑,决定通过安防监控系统实现可视对讲子系统在整个小区中的联网.本文就是为满足这一要求,通过设计可视对讲联网器来实现可视对讲系统在小区中的联网功能.     

狄耐克AB-6A-612安保型楼宇可视对讲系统

系统特点 狄耐克AB-6A-612安保型楼宇可视对讲系统,起源于现今多数小区所应用的联网楼宇可视对讲系统,在该基础上,安保型楼宇可视对讲系统在实现可视对讲、小区信息发布、门禁刷卡等功能,还做到了智能警报功能。     

纯数字联网可视对讲系统案例介绍

近几年，随着社会经济的长足增长，高端楼盘不断涌现，一些开发商也在追求小区各个系统建设的高标准、高要求。为此，数字可视对讲技术应势而发，在比非数字可视对讲的功能更完善、安装更简单、使用更方便等前提下，数字可视对讲系统逐步应用到一些高端楼盘之中。本文以四川成都某楼盘为例，为您介绍可视对讲系统数字联网在实际中的应用。[编者按]     

甩掉浏览器,照样能测试网速

系统特点 狄耐克AB-6A-512联网型电话可视对讲系统从“更安全、更舒适、更便捷、更节能与更高效”的“人性化”设计理念出发,突破了人们在楼宇对讲系统应用中必须要使用室内分机方可实现通话、开锁功能的局限,将普通电话联入可视对讲系统,实现了普通电话在楼宇对讲系统中的通话功能、开锁功能,并且电话线与对讲机线路完全隔离,互不干扰。     

智能化小区可视对讲系统中控制网络的设计

为了构建低廉、可靠的小区可视对讲系统,实现小区安全防范、信息采集的要求,我们对现场总线技术和它的一种解决方案-CAN网络技术进行了研究。我们分析了RS-485主从式多机通信的缺点,提出了对等式多机通信网络控制。通过对网络有效利用率的研究,发现对等式多机通信中动态延时方式比固定延时多机通信更高效,更能满足可视对讲系统中控制网络的需求。在此基础上,我们结合我国目前小区智能化系统的现状及未来的发展趋势,设计并改进了“CAN RS485”底层网络,实现了小区可视对讲系统的控制网络。     

智能楼宇中可视对讲系统的构建与实现

智能楼宇可视对讲系统不仅仅是方便住户和访客的电控门系统,而且是一种小区物业管理和安防管理必不可少的直接有效的手段和现代化的小区生活方式.从20世纪80年代末功能单一独户型对讲门铃、多层住宅多线制对讲、楼宇总线制对讲,发展到今天大型社区联网及综合性智能,产品经历了飞速发展的过程.文中分析了智能楼宇中可视对讲系统的发展现状、介绍了系统的功能,并通过具体的工程实例阐述了内部软件和外部系统部件之间的接口定义、各个软件模块的功能说明、数据结构的细节以及具体的实现.在实际应用中,该系统以强大的功能和友好的界面,为各类用户提供了实时、安全和便捷的服务.     

第3章NEC楼宇对讲系统

3.1概述 本系统采用日本NEC楼宇可视对讲系统.日本NEC楼宇可视对讲系统是结合目前住宅楼宇建设的防范特点,通过管理中心实现客人、业主、管理人员三方相互可视对讲和联网报警的功能.     

楼宇可视对讲技术现状简析

楼宇对讲行业是伴随国内房地产行业的发展而快速成长起来的,目前楼宇对讲系统已经成为住宅小区的基本配置。楼宇对讲系统从非可视到黑白可视,又到彩色可视,最后升级到网络可视对讲以及家庭智能终端;其从非联网独立系统发展到联网系统,从总线方式联网发展到半数字联网,又进一步运用成熟的TCP／IP数字联网技术,从功能单一型到智能综合控制型,进步异常迅速。那么楼宇对讲发展其技术现状又如何呢？结合本次产品测试,笔者粗略总结了一下,从产品和技术的角度,就楼宇可视对讲产品的状态和发展归纳出如下几个方面：     

东莞横岗社区TCP/IP楼宇对讲设计方案

工程概述针对东莞横岗社区的定位和招标文件的实际要求,同时,结合公司对于楼宇可视对讲系统设计的理念和多年来在社区智能化工程建设中的经验,此次系统设计将采用网络可视对讲系统。采用的网络可视对讲系统将通信、计算机和自控等先进技术运用于智能化系统的设计和建设中,通过有效的信息传输网络、系统优化配置和综合应用,向住户提供先进的安全防范、信息服务、物业管理等方面的功能,建立一个沟通住户与住户、住户和小区管理中心、住户和外界的综合服务系统。     

数字家居应用案例介绍

小区概况某小区规划占地1.9万平方米,是一座底商上住的大型综合项目,总体建筑布局呈L形。该项目以水韵风情为主题,从外立面到户型的设计都体现出时尚、现代的风格特色。功能需求可视对讲功能实现公用大门终端与室内终端可视对讲、管理中心与室内终端可视对讲、室内终端与管理中心可     

Datagogies, Writing Spaces, and the Age of Peer Production

This essay investigates how teachers and Writing Program Administrators (WPAs) can use commons-based peer-to-peer technologies to change their roles, to alter writing instruction and literacy genres, and to transform our processes of learning, writing, and collaborating. The essay introduces the term “datagogy” to theorize about the synergy that takes place when “crowds” of teachers employ technologies to construct and debate shared pedagogies. The essay juxtaposes the values and ideologies of two metaphorical communities, the Community of Power and the Community of Learning, explores how these communities use and design online learning communities, and concludes that datagogies are unique interfaces that emphasize the values of the Community of Learning as opposed to the values of the Community of Power. Finally, the essay argues that English studies will concede the central pedagogical stage of the 21st century unless we develop datagogies that engage the creative power of individuals working collaboratively in a climate that respects diversity and independent thinking.     

Collaborative design and its evaluation through Kansei engineering approach

This paper presents a proposal to reconstruct some specific towns which were attacked and destroyed by Huge Tsunami, for example, in Tohoku region of Japan on the 11th of March, 2011. A collaborative approach has been employed to provide some trial proposal to reconstruct such damaged towns by means of Internet Community as follows. (1) Providing a proposal and pictures to reconstruct, especially offering visual design concept of living space for slope topography through social network system as an example of Internet Community; (2) consulting and discussing the above proposal and pictures among specific Internet Community with analysis by Kansei engineering; and (3) improving an original proposal into more efficient and flexible one. Suitable methods for adjustment are sometimes necessary to avoid occurrence of conflicts from many requests. Kansei Engineering may consolidate several kinds of requests, translate their expressions into set of numerical values(namely vectorize) and reduce conflicts of request into stable adjustment (namely, “not drastic” reformation). The paper explains in detail the above approach for practical collaboration for design of Living Space for Slope Topography and adjustment scheme by means of Kansei engineering approach. It also mentions some senario to brush up the proposal by means of the above collaborative approach and some problems to be resolved to make it more fruitful.     

Supporting community-based learning: case study of a geographical community organization designing its website

Community computing supports human - computer interaction among neighbours in geographical or place-based community organizations. Using a case study of such an organization, we investigate the process of designing their website. Our long-term participatory design approach, integrating developmental informal learning, allowed us to understand how this community organization adopts, evaluates, and sustains website technology. Based on our case study analysis, we present three design heuristics for developing community-based technology: align and afford new possibilities for participation, dynamically manage organizational knowledge and learning, and enhance social capital within community organizations and with the broader community.     

A multinational SDI-based system to facilitate disaster risk management in the Andean Community

A useful strategy for improving disaster risk management is sharing spatial data across different technical organizations using shared information systems. However, the implementation of this type of system requires a large effort, so it is difficult to find fully implemented and sustainable information systems that facilitate sharing multinational spatial data about disasters, especially in developing countries. In this paper, we describe a pioneer system for sharing spatial information that we developed for the Andean Community. This system, called SIAPAD (Andean Information System for Disaster Prevention and Relief), integrates spatial information from 37 technical organizations in the Andean countries (Bolivia, Colombia, Ecuador, and Peru). SIAPAD was based on the concept of a thematic Spatial Data Infrastructure (SDI) and includes a web application, called GEORiesgo, which helps users to find relevant information with a knowledge-based system. In the paper, we describe the design and implementation of SIAPAD together with general conclusions and future directions which we learned as a result of this work.     

Specification and Standardization of a Java Trusted Computing API

The paradigm of Trusted Computing promises a new approach to improve the security of computer systems. The core functionality, based on a hardware component known as Trusted Platform Module, is integrated into commodity hardware. However, operating system integration and application software support remains limited at present. In particular, for Java, the most widely used platform‐independent computing environment, there is currently no generally accepted Trusted Computing API. In this article, we describe the design of a high‐level API for Trusted Computing. We report on the current state of the Trusted Computing Group's software architecture and on previous approaches targeting Java. We derive our requirements and design goals and describe a novel API design. We report on our transparent approach to standardization in the Java Community Process. The result of this effort is the API we propose in the Java Specification Request 321. In this work, we not only present the design of this new API but also discuss implementation and testing strategies. Copyright © 2011 John Wiley & Sons, Ltd.     

Theorizing mobility in community networks

Community networks emerged in North America during the late 1970s and early 1980s. During the past three decades, paradigms for networked information, services, and collaboration as resources for community development have evolved in many respects. In this paper we revisit a theoretical analysis of broadband Internet community networks [Carroll, J.M., Rosson, M.B., 2003a. A trajectory for community networks. The Information Society 19(5), 381–393], and extend that analysis to mobile/wireless community networks. This analysis is part of the planning for a specific municipal wireless project in the town of State College, Pennsylvania. But more broadly, it is intended to engage and to help focus human–computer interaction (HCI) design perspectives in the development of wireless community networks throughout North America and elsewhere.     

The community file station

This paper describes the design and use of the Community File Station, an intelligent terminal system, at a college with a large central computer facility. The Community File Station allows functions such as text preparation, editing, local file management and rapid text display to be performed locally without any interaction with the central computer system. It is hoped that the combination of such a terminal system with a high speed campus network will have a significant impact on the way in which the user community uses the central system. Some examples of the way in which the terminal is used is given, along with the way in which the role of the central system changes for the user of the Community File Station.     

Sustaining a Community Computing Infrastructure for Online Teacher Professional Development: A Case Study of Designing Tapped In

Community computing has recently grown to become a major research area in human–computer interaction. One of the objectives of community computing is to support computer supported cooperative work among distributed collaborators working toward shared professional goals in online communities of practice. A core issue in designing and developing community computing infrastructures – the underlying socio-technical layer that supports communitarian activities – is sustainability. Many community computing initiatives fail because the underlying infrastructure does not meet end user requirements; the community is unable to maintain a critical mass of users consistently over time; it generates insufficient social capital to support significant contributions by members of the community; or, as typically happens with funded initiatives, financial and human capital resource become unavailable to further maintain the infrastructure. Based on more than nine years of design experience with Tapped In – an online community of practice for education professionals – we present a case study that discusses four design interventions that have sustained the Tapped In infrastructure and its community to date. These interventions represent broader design strategies for developing online environments for professional communities of practice.     

Effectiveness of spatial representation in the formation of network communities: experimental study on community organizer

In this paper, we present and discuss Community Organizer, a system designed to support network communities. The main characteristic of Community Organizer is the use of spatial representations for the relationships among community members including the communications exchanged among these members. These spatial representations reflect the degree of closeness of interests and concerns among the members, and are intended to provide users with clues on how to form network communities. In order to investigate the effectiveness of the proposed spatial representations, we conducted experiments with two different versions of the software. One version offered meaningful spatial representations while the other version did not. The subjects who used the former software version felt a greater sense of ‘community’, enjoyed using the software more, and actively used it longer than the subjects using the latter software version (control condition). These results indicated that the proposed spatial representations are effective in supporting network community formation.     

社区庭院中公共空间和私密空间的融合

社区不是一个单个空间的累加,而应该是一个适宜生活的场所。公共空间和私密空间是社区庭院的两个重要的因素。两者之间的关系对社区的生活有着很大的影响。社区感是对社区的认同,包括两个方面的内容,一个是归属感;一个是与社区内居民的情感。公共空间和私密空间的设计规划,会直接影响社区感的形成。