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On the motorvehicle of your choice, mount a directional radio receiver facing forwards and a low power directional radio transmitter facing backwards. Link the transmitter to the brake system and the receiver to a warning system in the cockpit (a buzzer would do fine).
When you brake hard your car
alerts cars up to about 10 places behind you allowing them to slow down before they can see your brake lights and warning them that they may have to brake hard too.
When a car ahead of you brakes hard their car alerts you allowing you the opportunity to slow down before you can see your their brake lights and warning you that you may have to brake hard too.
Sounds like this, to me...
<toot, toot> [StarChaser, May 18 2001, last modified Oct 05 2004]
Emergency Stop Signal
This real problem is now solved. [notexactly, Feb 10 2016]
||No, your car only detects the heavy braking if the braking car has a xmitter fitted. This is another of those car safety ideas that will never catch on because of the poor incentive for early-adopters.
||gravelpit: you're looking at the
marketing before the idea's even baked.
But while we're on marketing, I agree
that you would never shift these boxes
as after-sales units (catch22). I could
envisage a major motor manufacturer
fitting this as standard in an effort to
raise their safety profile. Once there is a
quantity of these units out there you
would be able to sell units to retro-fit
to existing cars. But...
||I'm really more interested in the
technology. Would this work? Would it
prevent accidents? Could a unit be
cheaply made? Could a radio-
transmitter/receiver combo in this
configuration serve other purposes?
||<in a bit of a mood - it is monday after
all>To say at this point, "No-one else
has got one so there's no point" is an
attitiude that would have prevented the
creation of the radio, the telephone and
possibly even the internet.</in a bit of
a mood - it is monday after all>
||Let's go an extra step and have the receiver linked directly to the brakes, eliminating the follower's reaction time. So when you brake hard, you slow down the people behind you whether they notice the buzzer or not. (Not recommended for motorcycles.)
||But the receiver is already baked... Sonar-brake system. The military use it to navigate high-speed convoys at night without using lights. You can get them for regular truck fleets too.
||I like this idea. Especially if I can choose the warning to be sent back to the drivers. Like, "whoa nelly!" or a midi version of La Cucaracha.
||The propose solution is too easy to play with and annoy others.
||The proposed solution is easy to play with and annoy others.