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M-sequence -based topology detector cable

Author: FuQingShan
Tutor: LeiZhongKui
School: Nanjing University of Aeronautics and Astronautics
Course: Signal and Information Processing
Keywords: m-sequence Cable detection Detector SCM CDMA
CLC: TM246
Type: Master's thesis
Year: 2011
Downloads: 18
Quote: 0
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Abstract


With increased levels of automation equipment , in some special areas of South -type equipment , the use of multi-core cables gradually increased , and many system failures are caused by the failure of the cable , multi-conductor cable has an impact on the performance of the overall system reliability of an important factor. Electrical equipment and electronic devices in the installation , commissioning and maintenance process, to find out the wire and cable topology, verify the conduction state of wires and cables is a very important step. Especially for non-standard special-purpose equipment, the role of these tests is particularly indispensable . Traditional manual testing methods and the currently popular method automatically detects the principle is the same, that is a one of the cable cores sequentially polling . This method of cable cores when more will undoubtedly consume the amount of time the South . This paper presents a new detection method in a CDMA communication system, drawing techniques , the use of the relevant characteristics of m-sequences can be at the same time more than one core cable for the simultaneous detection of all cores , can also detect multiple cables . It can be used to detect and identify the topology of multi-core cable can also be used to detect multi-core cable fault conditions. This kind of method for the simultaneous detection of the cable core number , changes the method of polling in turn , improves the south pole detection speed and accuracy. This paper describes the current status and cable detection problems presented new ideas to solve these problems , verify the cable topology detector test the feasibility of the principle , and then describes the functions and framework detector settings, focuses on the function module architecture and composition of the testing process , and finally the commissioning and operation of the detector .

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CLC: > Industrial Technology > Electrotechnical > Electrical materials > Conductive materials and their products > Electrical wire and cable equipment
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