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Computing & Control Engineering Journal

Issue 4 • Date Aug. 1999

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Displaying Results 1 - 7 of 7
  • Fly-by-wire flight control

    Publication Year: 1999 , Page(s): 141 - 152
    Cited by:  Papers (4)  |  Patents (1)
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (1285 KB)  

    Fly-by-wire flight control has enabled a watershed improvement in aircraft performance and control to be achieved. This article covers first the basic concepts of FBW control and key elements such as electrical data transmission, failure survival actuation systems, aircraft motion sensors, and air data systems. Aircraft stability is then briefly described. The unique advantages of FBW control are next covered and roll rate and pitch rate manoeuvre command control explained. Safety and integrity requirements are then discussed together with failure survival redundancy. The architecture and implementation of a quadruplex FBW system is explained. The problem of common-mode failures and the need for dissimilar redundancy are covered and the methods used to achieve dissimilar redundancy described. View full abstract»

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  • Tilting trains and beyond - the future for active railway suspensions. 1. Improving passenger comfort

    Publication Year: 1999 , Page(s): 153 - 160
    Cited by:  Papers (3)
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (1066 KB)  

    Active components are starting to become accepted within railway vehicle suspension systems which have been exclusively mechanical since railways began in the 1800s. At the moment these are principally being applied in tilting trains, but opportunities which arise from applying control systems engineering to railway suspensions extend much further, and this is the first of two articles which explore such possibilities. Part 1 concentrates on control approaches which are mainly concerned with passenger comfort-active tilting technology which enables trains to go faster around curves without passengers experiencing the higher curving accelerations, and active secondary suspensions which also improve the essential ride quality on straight track. View full abstract»

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  • An introduction to CANopen

    Publication Year: 1999 , Page(s): 161 - 168
    Cited by:  Papers (2)
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (830 KB)  

    CANopen is a truly open protocol that has not been developed by one company alone. Several working groups, consisting of many different device manufacturers and end-users, have co-operated to produce the CANopen standards, now under the supervision of the CAN in Automation organisation. CANopen has been produced as a result of EU funding. This article gives an overview of some of the fundamental concepts of CANopen communication and of CANopen implementation. View full abstract»

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  • Road prediction using video for integrated driver support

    Publication Year: 1999 , Page(s): 169 - 175
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (719 KB)  

    The use of a video camera for predicting vehicle trajectory is reviewed. The data available from the video camera, and the features which can be used for trajectory prediction and how these relate to the real world, are analysed. To accurately predict the road ahead, a model is used, consisting of a spatial and dynamic module. A recursive least square based estimator is designed based on the road model. The estimator is robust with respect to variations in the horizon, deals with distance and varying measurement noise, and handles the spatial/dynamic structure. The results are presented in two separate parts. The first deals with the estimation and comprises simulated data to illustrate robustness, and video data to show typical road features. The second is the performance analysis. It highlights the response to changes in road parameters and the subsequent correlation with standard road prediction techniques. View full abstract»

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  • 'Net profits [electronic commerce]

    Publication Year: 1999 , Page(s): 177 - 180
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (554 KB)  

    Manufacturing industry once known for its archaic management and information systems, has experienced many twists and turns in its direction over the last ten years from MRPII to the ever-developing ERP systems, which today control many aspects of the business. Now the industry is gravitating from EDI systems to E-commerce for business-to-business and business-to-consumer trade. As manufacturers fight for supremacy in the market, E-commerce heralds perhaps the most exciting time in a long while for the industry. Statistics supplied by KPMG Management Consulting show that two-thirds of respondents think that E-commerce is vital to global competitiveness. Forrester Research, on the other hand, estimates that 38% of all worldwide business done over the Web this year will be transacted by manufacturers of durable goods, mainly electronics and aerospace parts. View full abstract»

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  • System safety: hazop and software hazop [Book Review]

    Publication Year: 1999 , Page(s): 140
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (112 KB)  

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  • Florida in control

    Publication Year: 1999 , Page(s): 181 - 183
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (316 KB)  

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Aims & Scope

Published from 2003-2007, Computing and Control Engineering was concerned with computing, communications, control and instrumentation.

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