Railway track crack detection system project report pdf

#RAILWAY TRACK CRACK DETECTION SYSTEM PROJECT REPORT PDF TV#

#RAILWAY TRACK CRACK DETECTION SYSTEM PROJECT REPORT PDF TV#

The commands for the desired direction are given by a TV remote and accordingly the motor is rotated in the desired direction. This project uses this principle to achieve the bidirectional rotation of the motor. By interchanging the supply between the two windings, the windings can be interchanged and the direction of the motor can be changed. These fans are operated using split-phase induction motors which consist of the main winding which gets the mains supply directly and an auxiliary winding that gets the main supply through a capacitor. The exhaust fans used at homes are used only to expel out hot air from the room. Bidirectional Rotation of Induction Motor with Remote Control Device The project uses IR sensors to sense the persons entering and leaving the room and accordingly the control unit controls the switching of the load. It defines an easy way to save energy by controlling the switching of loads in a room only based on the number of persons entering the room. This system is used as a way to manage the consumption of energy optimally. The time taken by the waves to travel back and forth is calculated and multiplied with a velocity of sound to get the distance measurement. The sensor emits ultrasonic waves which are reflected by the object. The ultrasonic sensor can be used to measure the distance of any object from a certain position. In case the timing count is less than the set time limit, the speed is known to be exceeded and correspondingly a buzzer starts ringing to give the indication.Дistance Measurement by Ultrasonic Sensor A speed limit is set and the distance between the two spots is fixed. the time is taken to move from IR sensor position to another. A decade counter shows the time count of the output pulses or counts the clock pulses, i.e.

The output from both the timers drives a NAND gate which in turn drives another timer to trigger a buzzer in case of the speed going more than the set limit. Two timers are used which receives input from the two sensors. Here two IR sensors are used at two different locations.

Here a speed checker system is designed where the time taken by the vehicle to travel from the spot on the highway to another is measured and the speed of the vehicle is accordingly calculated. This is achieved by monitoring the speed of the vehicles and accordingly generates a warning when the speed of the vehicle increases. Most of the road accidents can be prevented if the rash driving is controlled. Rash driving is one of the major reasons for road accidents. Speed Checker to Detect Rash Driving on Vehicles Here a timer powered by a battery is used to produce pulses at a frequency equal to the remote output signal frequency and more than 50% duty cycle, to drive the transistor, which in turn provides power to the IR diode and accordingly the IR diode emits IR rays at that frequency.

Railway track crack detection system project report pdf