Construção de um semáforo automatizado com sinalização inovadora

Abstract

This paper presents the final simulation and development stages for the implementation of a traffic light with innovative signaling, aiming to optimize traffic flow, well-being, and safety for the population, primarily by providing passage during idle hours at night when there are no vehicles on the roads, except for the vehicle in question. To achieve this, a new type of light signaling was developed, resulting from a utility model deposit at the INPI (National Institute of Industrial Property), and an algorithm was written to prioritize traffic on the roads. The signaling model offers a larger and more intuitive interface, facilitating perception for people with visual impairments, while maintaining current legal requirements, covering the entire traffic light interface on each face. The objectives of the work consisted of constructing a traffic light, applying knowledge in Electronics and Computing. The device was divided into main stages, such as: sensors, responsible for triggering the logical algorithm; signal conditioning, which is responsible for sending information through the sensor responses; control, which uses a microcontroller to manage the sensors and actuators; and finally, the actuators, which are visible signals illustrated by LEDs to manage vehicle starts and stops. The sensor stage is responsible for being fixed on the pavement and triggering signals to activate the logical system upon vehicle detection. This is followed by the signal conditioning stage, performed by a logical comparator, to prevent sensor detection errors, which can be minimized with a minimum reference voltage. The control stage is responsible for processing the sensor information and providing the command to be sent to the actuators. Finally, the actuator stage is the physical signal to be displayed via LEDs, fixed on a pole, providing light signals to the driver.