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Type: Posts; User: elecfan

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    Closed: Re: best practice in redundant microcontrollers!

    146274

    if I use the above config, and send the data from both micros to the computers, via four different CAN buses, shouldn't be enough to rely on what is provided in the computer?
    or still you...
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    Closed: Re: best practice in redundant microcontrollers!

    Many thanks for your comment.
    is the reference you mentioned a paper or technical report?
    Unfortunately I could not find it in google.

    Best regards
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    Closed: Re: communication port redundancy!

    for the board at the left, I am considering two boards (master and slave).
    for each board (i.e. microcontroller), two CAN ports, one of them goes to BUS A and the other one to BUS B.
    For the right...
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    Closed: communication port redundancy!

    Dea All
    I am using the following config in order to improve the reliability of my system.
    two redundant micros are used, where each one provides two CAN based data port.

    in the right, three...
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    Closed: best practice for redundant microcontrollers!

    Dear All
    I am going to use two ARM micros in a redundant configuration, in which the slave micro comes to service, when the Master one fails to operate, or fails to provide an output.

    since the...
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    1,392

    Closed: Re: RS232 smart switch design

    I am not sure which one is preferred and is a more reliable way. I was thinking of controlling the signal level of DTR.
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    Closed: RS232 smart switch design

    I am going to design a smart RS232 switch.
    the board should have one RS232 input and two RS232 outputs.
    the output port should be switchable manually and also automatically in a way that gives...
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    Closed: Re: Final Year Project On Sensors

    it depends on what area you would like to work on.
    the signal processing part, design of sensors, new applications?

    but working on a multisensor system, such as building management system or road...
  9. Closed: Re: advantech fanless computers and port considerations

    all the cables and kept just one (USB or VGA)
    I see the same problem with both cables.

    when I plug them in, the V- and ground get shorted.

    this connects all the V- wires together and to the...
  10. Closed: advantech fanless computers and port considerations

    Dear All
    I am facing a problem in connecting VGA, com and USB connectors to my advantech UNO-2178 computer.
    the problem is that after connecting the mentioned connectors, the V- and field ground...
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    Closed: Re: protection of electronic Box against EMI

    Many thanks for your valuable comments and advises

    on the locomotive, all the electronic equipment (including high power and low power) share a common ground which is the structure of the loco.
    ...
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    Closed: protection of electronic Box against EMI

    Dear All
    I am installing an electronic box, including analogue and digital boards, computer and modems, on a locomotive.
    the box collects signals from several sensors installed around the engine....
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    Closed: Re: dft vs continuous ft

    I think this is because in DFT we work with impulses which are considered to get samples from the original signal.

    it is sort of FT of each individual impulse and sum them up.
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    Closed: Re: basic question on AM modulation

    in the first case we will have:
    y(t) = c(t) + c(t).m(t) (multiplication of the two or convolution?)
    and also in the second case.

    in the first case we will have wc, (wc+wm) and (wc-wm) in...
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    Closed: basic question on AM modulation

    can we consider AM modulation as multiplication of two signals?
  16. Closed: Re: ultrasonic sensors for rotation position measurement

    one idea!
    If you would like to measure the orientation (rotation angle) of the ball, perhaps you can add a coded pattern on the ball surface.
    this can help to detect the orientation of the ball...
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    [SOLVED]Closed: Re: New in mechatronics..

    I think the following are the subjects you need to work on:

    - automation and control
    - instrumentation and calibration (sensors and actuators)
    - intelligent and classical control
    - image...
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    Closed: Re: rotary encoder for bigger shafts

    May ask how the diameter is affecting the encoder?
    as far I know, the encoder can be attached to the shaft with any diameter!
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    Closed: ADC technology and its functionality

    among the excising ADC technologies and structures, may I ask which one is preferred?
    Is sigma-delta the latest technology?
    Choosing the type of ADCs, does it depend on any special parameter of...
  20. Closed: Re: choosing from inverting and non-inverting opamps

    and do they effect on the signal characteristics differently, or they are all the same? (except polarity and gain formula)
    do they have different applications?
    I read somewhere that non-inverting...
  21. Closed: reliability and failure rate of PLC systems

    as far as I know the PLC systems have been introduced to the market so far, all have Safety integrity level, SIL, below 4.
    any idea if there has been any progress in this field and PLC systems can...
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    Closed: Re: Best radio system for a distance of 3 km

    But as I said, they are important condition monitoring and control data.
    they have to be transferred reliably,

    So far I am convinced that ZigBee is the best solution,
    But can someone suggest...
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    Closed: current gain of an opamp

    can someone help me with this theoretical question:

    Is current gain of opamp defined just for loaded condition?

    In theory, can we talk about no-load current gain?

    i.e. Ai = Io/Ii = (Vo/Ro)...
  24. Closed: Re: choosing from inverting and non-inverting opamps

    yes, you are right. but still my question remains.
    is inverting config different with non-inverting, in other aspects?
  25. Closed: choosing from inverting and non-inverting opamps

    in addition to the polarity of the output, what other differences the two amplifiers have?

    In choosing an amplifier from the two, should I consider other issues

    Thanks
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