Real-Time Pedestrian Detection And Tracking At Nighttime For Driver-Assistance Systems

Infrared light is a light that is invisible to the naked eye in normal conditions. Since the light frequency is less than the visible light range. This has the same properties that a normal visible light has. We normally use this for security systems and other low range distance measurement systems. Here we are using the same IR light sensors that detect the obstructions and that is reflected back to the sensory unit that is fixed on the controller module. If the detected light intensity is high then it indicates that the obstruction is closer and that is sent to the analog to digital converter then the conversion is made that  in such a way that if the it makes the motor to drive in the in such a direction to make the avoidance with the abstraction.

The controller will immediately send the signal to the motor in through a driver IC. This is a H-Bridge drive that makes the motor to control the in both the direction such that it has a fast control to the motor and that motor will drive the wheels through gears. This makes the rotation of the robot to control in different directions that is fed to the control. The reflected light is received with a sensor which gets activated to the IR beam. If the obstruction is on the left side then the controller will indicate the robot to take a right turn indicating the clearance on the other side. In this manner the robot is controlled and guides the blind to avoid the obstructions.

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