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More interesting ineractions between automation and humans for safety of trasnport

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  • #31
    Originally posted by Evan
    It's NOT going to work with most people.
    Specifically corrected.

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    • #32
      I still question why "automatic emergency braking" is disabled during automatic driving...(given the way "most people" operate, anyway).
      Les règles de l'aviation de base découragent de longues périodes de dur tirer vers le haut.

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      • #33
        I can't answer really specifically, but in general it seems like a bad idea to have two different computer systems programmed by different people with different parameters, both controlling the brakes.

        In theory no matter how many computers you have, if one of them thinks the car is going to hit something (/someone), the brakes probably should be applied. That's why airliners have multiple autopilots. However in the case of airliners the computers are designed to operate together to provide redundancy and they contain algorithms to handle cases of the computers disagreeing. The systems in self-driving cars are not designed to interoperate.
        Be alert! America needs more lerts.

        Eric Law

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        • #34
          Originally posted by elaw View Post
          I can't answer really specifically, but in general it seems like a bad idea to have two different computer systems programmed by different people with different parameters, both controlling the brakes.

          In theory no matter how many computers you have, if one of them thinks the car is going to hit something (/someone), the brakes probably should be applied. That's why airliners have multiple autopilots. However in the case of airliners the computers are designed to operate together to provide redundancy and they contain algorithms to handle cases of the computers disagreeing. The systems in self-driving cars are not designed to interoperate.
          Actually, no. If we are using the autopilot analogy, if one system thinks the car is going to hit something and the other doesn't, they both disconnect and hand things over to the pilot (with a very aural alert). But it's more complicated than that because the thinking part of each system depends on the data input of three or more sensors and the data translation of multiple ADIRU's, where one sensor can give different input than the other two and be ruled out, leaving both systems fail-passive and thus still safely operational. The reason aircraft have two autopilots is to allow autopilot function to continue if one unit fails, not if one unit 'disagrees' with the other. But it's more complicated than that because some autopilots are using three or more flight control guidance computers which are designed to detect faults within themselves and to rule out a unit that differs form the others.

          In other words, the 'autopilots' in cars today are nothing near what they need to be to provide the kind of reliablity and safety that commercial aviation autopilots provide. And without that, we need to get them off the streets.

          And then there's the whole issue of keeping the driver focused on driving when he is not "hand-driving'. And that is NOT going to happen. Ever.

          Therefore, until cars can drive themselves without the need for driver intervention, it's a dead-end.

          But they will continue to be produced and allowed on the streets because... money.

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          • #35
            Can't wait till we unleash 'flying cars' to Joe Public HAHAHAHAHAHAHAHAHA

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            • #36
              Originally posted by Evan View Post
              But they will continue to be produced and allowed on the streets because... money.
              Specifically because many people are willing to hand over amazing amounts of it (money) for this year's Bright Shiny Objects because they're new and therefore so much better than last year's Bright Shiny Objects.

              But I'm not cynical... really!
              Be alert! America needs more lerts.

              Eric Law

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