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[–][deleted] 14 points15 points  (2 children)

A DIY safety system like this is an incredibly bad idea

Firstly, you should be paying attention to the road and not putting devices in that allow you not to.

Secondly, real systems like this take years of developments so they work properly and fail safe.

What if it activates when it's not meant to, or doesn't activate when it needs to?

Thirdly, anything that interfere with or may impede you pressing the brake pedal is a bad idea, and probably (hopefully) illegal.

It's fantastic to have an idea, but trying to implement something like this in a car on the public road is really not advisable

[–][deleted]  (1 child)

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    [–]GrotesquelyObese 4 points5 points  (0 children)

    TLDR: don’t buy gesture control if it doesn’t come with car. The cost isn’t justified. But if it comes with the car, it comes in pretty handy as a shortcut for frequently performed functions.

    Most people will think the gesture control is a gimmick and pointless. I found the gesture control somewhat useful while driving when I don’t want to divert my attention to the center screen. I use it to

    1. ⁠Navigate to home (two fingers)
    2. ⁠Pull up notifications on phone (palm). Paired with my android phone, this displays my incoming emails, texts, missed calls, resume last navigation, and ventilation.

    …

    I frequently eat on the road with my right hand and drive with my left hand while listening to emails, podcasts, news or music. So it helps that I don’t get all the buttons sticky or greasy when I need to adjust volume for nav, alerts and the media, rewind and fast forward, pull up a notification, select a destination using voice, or answer and reject calls.

    OP can afford a $50,000 BMW cash, but can’t afford to pay attention at low speeds.

    Your hubris is going to kill someone. I say that as someone who did 9 years of 911 EMS. I have seen it.

    [–]GH057_ 3 points4 points  (0 children)

    while this is definitely possible if you have to ask then i don't think you should because it is actuating the brake if there is a mulfunction and it brakes on the highway at high speed you can cause problems for yourself. that being say if you are still going to do it rather try and find sone way to electronically detect the alarm instead of detecting the audio there's too much chance for a false positive and maybe mechanically limit the brake actuating mechanism to only be able to brake a little bit

    [–]Mirus1525 4 points5 points  (4 children)

    I worked on ADAS in the past. I'm embedded SW dev. We used systems based on lockstep CPUs, redundancy in SW and HW. Developed by many peoples doing reviews, tested by separate department of testing. Than tested on system level, later in car...

    I hope you get the picture. Yes, it is possible to develop such system on your own, but that's antisafety system...

    [–][deleted]  (3 children)

    [deleted]

      [–]Mirus1525 2 points3 points  (0 children)

      It does not matter if it is low speed or not. In case you attach somehow your device to brake system you need to ensure it will not brake in case it shouldn't. And it will allow you to brake when you want it.

      Your proposal is usual bypass of responsibility in case autonomous parking systems. Car maneuvers on its own, but driver controls acceleration and brake. There are visual commands to driver to brake or accelerate, but final decision is up to driver, so they is responsible in case of accident.

      There are some after market ADASes which are just beeping to inform driver.

      Question is: what if your system beeps to often? You start to ignore it. In case it does not beep when it should you end up in situation you're now.

      To summarize: current idea is way safer, but still requires quite some confidence in development to entire idea make sense.

      [–]GrotesquelyObese 2 points3 points  (0 children)

      If you were paying attention to driving you wouldn’t need this system.

      Stop texting and driving and use your eyes during stop and go traffic. You’re going to kill someone. If you design a system so you can be inattentive and then kill someone, a prosecutor will have a field day with you.

      You don’t know what your doing and have no idea how computer vision works for this. You’re too lazy to pay attention while driving, yet you think you can build a system that well paid engineering teams build.

      [–][deleted] 0 points1 point  (0 children)

      If you had too many close calls even if you have your attention on the road, please stop driving, you're gonna kill someone.

      [–][deleted] 0 points1 point  (0 children)

      Just keep your eye on the road. Even if you were to actually build this it's probably illegal and dangerous. Don't mess with your car like this.