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Consumer Electronics, IEEE Transactions on

Issue 2 • Date May 1991

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Displaying Results 1 - 14 of 14
  • Common Application Language (CAL) and its integration into a home automation system

    Page(s): 157 - 162
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (352 KB)  

    The authors present an implementation of CAL (Common Application Language) as an integral part of a practical home automation system. CAL is the medium through which users submit their requests to the system for translation and transmission onto the CEBus. Such a system is in the process of being designed and implemented according to all present specifications set forth by the EIA (Electronic Industries Association). Attention is given here to CAL's command syntax, supervisor and modules, and hardware and software View full abstract»

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  • Conformance specification-the standards policeman

    Page(s): xxvi - xxviii
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    An Electronic Industries Association CEBus working group has been formed to address the conformance requirements of a networking standard. CEBus standard conformance specification (SCS) is being written and will be issued following the release of the CEBus standard itself. Some of the attributes of the CEBus SCS are as follows: capability of multiple diverse products: various levels of product functionality: in general the standard itself is followed; detailed test procedures of many of the standard requirements, including limiting values on the input and output parameters; grouping of conformance requirements according to the ISO layers included within the CEBus standard; testing only those features that the manufacturer claims: and confirmation of minimum requirements such as network crash avoidance, collision avoidance, graceful backoffs, and priority level View full abstract»

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  • Functions and operations of CEBus routers

    Page(s): 135 - 144
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    A router is the device in the CEBus network which connects different media. A router intelligently forwards packets onto adjacent media and maintains the tree-structure topology. These functions are provided though the interaction of four elements the communications element, the forwarding element, the directory routing table element, and the network topology protocol element. These elements, combined with the services of the other layers of the router, relieve the nodes of the costly task of network maintenance View full abstract»

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  • The Consumer Electronic Bus infrared system

    Page(s): 122 - 128
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    The Infrared (IR) Physical Layer definition for the Electronic Industries Association's (EIAs) Consumer Electronic Bus (CEBus) standard was circulated for comment and vote in the early part of 1990 and was approved after alteration to reflect some of the comments. The author describes the IR Physical Layer specification and some of the network implications of using IR. It is noted that the CEBus IR system represents an effective method of achieving single-room remote control and access to the housewide network. No new technology is used; the standard simply extends current product development trends to provide a method of IR communication which is orthogonal to existing systems. The multiple levels of complexity allow the most cost-effective implementation for the application View full abstract»

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  • The impact of home bus standards on consumer product design: addressing the challenge for a better user interface

    Page(s): 163 - 167
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    As home bus standards in the US and abroad near completion, scores of companies are busy developing a new generation of feature-rich products and services for the home. However, until user interface design practice catches up with the demands of increasingly complex products, ease-of-use will remain a major impediment to mass-market penetration. It is pointed out that the inadequacy of the user interface has only recently become an issue. Ever since microprocessors were introduced into the home, product functionality has outpaced design practice. It is concluded that the microprocessor must now be harnessed to hide product complexity and reduce the operational burden on the user View full abstract»

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  • Using parser generator tools to implement CEBus CAL

    Page(s): 154 - 156
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    The use of the parser generator tool YACC (yet another compiler compiler) for implementing a CEBus CAL (Common Applications Language) interpreter is described. Another program called BISON, has also been used in this fashion. Besides using these tools to generate software code as a framework for implementing CAL, these tools are also useful in checking the logical consistency of the complete CAL language or any subset of CAL selected for a particular application View full abstract»

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  • Why a standard for fiber optics in premises networks?

    Page(s): xv - xxv
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    The authors describe the approach now being undertaken in the Electronics Industry Association CEBus Committee to establish a standard for the use of fiber optics in the home. Two phases are considered. First, a framework for the uses of fiber, based on applications, interworking with other media, and conformance to other standards, is being developed. Second, a more detailed standard to guide the evolution of next-generation consumer products, home construction, and communications network interfaces will be established. The advantages of fiber are discussed, and synergies with other applications are considered View full abstract»

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  • Utility load management using home automation

    Page(s): 168 - 174
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    The electric utility industry is investigating methods for controlling the customer demand for power. The present techniques involve denying power to selected appliances. The author proposes a novel strategy for appliance control using a home automation communications network. The objective is to allow continued appliance operation during energy shortages. The appliances would operate at reduced modes of power consumption while still providing some services to the customer with minimum inconvenience. It is concluded that effective energy management for residential applications can be achieved by the appropriate combination of the following: existing products modified for home automation: microcontrollers engineered for continuous residential use: clever software with attention to the user interface: and home automation standards for communications and connectors View full abstract»

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  • A transceiver for the EIA Consumer Electronics Bus

    Page(s): 116 - 121
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    One of the elements of the Consumer Electronics Bus standard for home automation which is being developed by the Electronic Industries Association (EIA) is the twisted pair (TP) bus. The author describes a transceiver architecture developed for use with the TPBus for audio and low-speed data transmission. The TPBus transceiver is designed to be a low-cost platform suitable for incorporation into residential products and to provide total channel use flexibility through independent receiver and transmitter frequency control. This transceiver is currently in breadboard form, and the implementation of an integrated circuit version is being investigated View full abstract»

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  • Smart enabling system for home automation

    Page(s): xxix - xxxv
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    The author describes an enabling system called SMART HOUSE that provides the common resources needed for home automation in a multiproduct, multivendor environment. The system includes the following: a system controller, housewide wiring network, communications protocols, standard interfaces (outlet designs) for connecting other products, and basic user controls such as programmable wall switches and DTMF telephone. Providing complete home automation functionality depends on the addition of other products such as more complex user controls, appliances that include consumer electronics, and application-specific controllers for energy management, security, climate control, etc. These compatible appliances and controllers are equipped with proprietary communications circuits that permit them to communicate with the system controller and with each other. The author provides a concise technical description of the system, concentrating upon the control communications aspects, including system architecture, protocols, messaging, and logic structure View full abstract»

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  • The RF medium in the home-the move to spread spectrum

    Page(s): 108 - 115
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    It is pointed out that spread spectrum appears to be the most viable option currently available for reliable, low-cost, wireless products for future homes. Spread spectrum in the home is discussed, with attention given to sample implementation and code-division multiple access. It is concluded that the advent of spread-spectrum systems in control applications should reach a new plateau, yielding high-performance products for home automation that consumers will find easy to use with consistent operation View full abstract»

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  • The EIA Consumer Electronic Bus twisted pair network

    Page(s): 101 - 107
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    The Electronic Industries Association (EIA) Consumer Electronic Bus (CEBus) twisted pair (TP) network is described. The TP network is one of several `hard' media supported by the CEBus home automation standard for consumer device communications in the home. The network development is a result of a desire to have a dedicated, high-speed medium, easily installed in the home at low cost, that could support the communication needs of devices which are normally interconnected by low-voltage wiring. The author covers the development goals, network topology, media, media frequency use, coexistence with other services, and device interfaces View full abstract»

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  • Design influences for the CEBus automation protocol

    Page(s): 145 - 153
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    The authors examine the protocol stack used by CEBus, the emerging home automation standard being developed in an Electronic Industries Association committee. Specifically, the communications protocol as used for the control channel, the command and control portion of the CEBus network, is considered. The factors which influenced the design of the protocol stack are then examined. These factors can be categorized into three classes: inherited work from early committee members, design by committee, and interaction with existing (and future) services brought to the home View full abstract»

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  • A token passing network for powerline communications

    Page(s): 129 - 134
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    The AC powerline is the ideal communications medium for enabling control and monitoring applications in the home. The authors describe a low-level network architecture for reliable powerline communications. It uses a robust token passing protocol that supports network access and device response under worst-case powerline impairments. The approach is hierarchical, building upon both a spread-spectrum physical layer enabling short-duration powerline transmissions and adaptation to changing powerline conditions and upon a packet structure designed for error correction View full abstract»

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Aims & Scope

The primary purpose for publishing the Transactions of the Consumer Electronics Society is to present to the membership and the engineering community in general, papers on new technology oriented to Consumer Electronics.

 

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Meet Our Editors

Editor-in-Chief
R. Simon Sherratt
School Director for Teaching and Learning, School of Systems Engineering
The University of Reading
Reading, Berkshire  RG6 6AY  RG6 6AY  U.K.
r.s.sherratt@reading.ac.uk; sherratt@ieee.org
Phone:+44 (0) 118 3788588
Fax:+44 (0) 118 3788583