








Description
SR-90 is a smart system for speed reduction of vehicles in areas of controlled speed, for example, near crosswalks. It works with road studs with two levels of ground elevation and corresponding LED signals that are controlled electronically. The speed control measures are the result of an intelligent algorithm: the level of elevation and the color of the LEDs will change according to the speed that the car approaches the control area.
Details
System
for installation on road pavements with dynamic elevation and LED lighting
controlled as a function of speed. Consisting of speed sensor, controller and
road studs, with the functionality of controlling the speed of vehicles in
critical areas.
The
system have several road studs to let the driver feels its presence on the
road, and do not try to pass by - as occurs with road humps (often making them
inefficient). Its elevation work in function of speed, becoming imperceptible
below the speed limit and aggressive when the car is above the speed limit of
that area. This control will be the result of an intelligent algorithm -
function of the speed of the vehicles approaching the control zone.
The
controller have the function of receiving the speed information of the
detectors and transmitting the orders with respect to the height and color that
they should have when passing the vehicle.
SR-90 -
the new road stud - will have two types of warning for the driver: it will
raise height above ground and illuminates depending on the speed of approaching
vehicles.
There
will be 3 levels of warning:
-
Proper speed: the road stud will be at ground level and have a green light;
-
Excessive speed (inadequate by excess): the road stud will be slightly above
ground level and will show yellow light;
-
Excess speed (exceeding legal limits): the road stud will be at one of its
upper levels above ground level and have a red light.
The
focus of this research was the process that allowed the elevation of the road stud,
maintaining all the mechanical characteristics inherent to its proper
functioning.
This
system will be installed in places where it is crucial that cars slow down when
they pass. Close to schools and in areas with a high average of accidents
caused by excessive speeds.
The
technique inherent in the project is unique in the world. In fact, there is no
speed-controlled dynamic system associated with road studs. The major challenge
lies in the design of the mechanical system for lifting the main body of the
road stud, because we developed a system that is resistant to the high impact
caused by the vehicles and also can operate at voltages and currents from solar
electric power stations.