Silent Vehicle Alert (13-Mar-2009)
This idea is to enable the silent operating engines/vehicles to broadcast signal over a specific frequency within a short distance where a receiver can detect the signal and produce appropriate alert signals.
Silent Vehicle Alert
Due to the global energy demand and it's effect on global warming, there has been an acceleration of development/deployment of hybrid and electric automobiles in the market place. These technologies provided improvement to the overall environment such as reduction in green house gas effect from reducing use of fusel fuel, noise pollution from the electric engines. However, new problem arises with this new improvement in low noise or silent operating electric engines. In crowded cities where many pedestrians intermixed with daily busy traffic, these silent engines in vehicles become less obvious and alert within the human sensory system. It is particularly evident, presenting a dangerous scenario when a visually impaired person crossing the street with an approaching vehicle making a turn from a different direction. The visually impaired (and at times sighted) person may not have aware/notice the potential danger.
Existing Solutions & Drawback of Existing Solutions
1. Create artificial sound/noise emitted by these new type of vehicles. This sort of defeated one of the side effect of the new technology - removing noise pollution.
2. Depending on the approaching vehicle's operator by blowing the horn to let pedestrians acknowledge it's presence. The sound of the horns itself created additional noise pollution and if we hear that all the time, our sensory system has a way to 'n...
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