American engineers have developed a smart traffic sign STOPMarch 10, 2019
Engineers from the University of Texas have created a road sign that flashes when a vehicle approaches it.
As noted in a university press release, 54% of all road traffic deaths in the United States occur in rural areas – mainly because the roads in the countryside are poorly lit at night, which is why the driver may not notice the warning sign, even if it is covered reflective paint.
However, the brainchild of Texan engineers is not difficult to notice, because as the car approaches the sign, the flashlight starts flashing. And for this he does not need to connect to the power grid, which is often absent on rural roads, – the device works on solar batteries. During the day (and, according to the developers, in any weather), it charges its battery, and at night, if necessary, brings drivers the “light of truth.”
How does the system know that a car is approaching it? To do this, it has an infrared camera, which, unlike a conventional video camera, works great in the dark. In this case, a smart sign not only recognizes cars, but also determines the direction of their movement.
“During the tests, the system recorded the approach of the vehicle in 90% of cases,” say the engineers.
According to the authors of the development, their offspring works more accurately and consumes less energy than devices used in urban environments to recognize cars based on radars, optical cameras and magnetic sensors. In addition, the undoubted advantage of the solution is its low price: equipping an ordinary road sign with the presented warning system will cost $ 100. For comparison, current analogues cost about $ 5000.
In the future, engineers are hoping to expand the scope of the system, teaching it to recognize and pedestrians.
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