Fuzzy Logic Based Dam Water Shutter Control System by Using Water Level and Rainfall Condition in Raining Season

A robust water shutter management system ensures that the water does not overflow and destroy or damage the dam. During the rainy season, care must be taken when dams conserve water, if the reservoir volume is too high, the risk of dam failure may be increased. So water level control is a special matter in the rainy season. Fuzzy logic sets provide better control than binary logic-based methods because they are used to determine the meaning of qualitative values for controller inputs and outputs, such as small, medium, and large control actions. This system used the fuzzy logic control theory in the water shutter management system to get smoothness motor control values of small, very small, medium, large, and very large. The system uses ultrasonic sensors to detect water levels, rain sensors to detect rain, and fuzzy logic controls to control the PWM duty cycle to the shutter gate motor driver circuit based on the detection of these two sensors. This control strategy is implemented with Arduino Uno

Implementation of Microcontroller Based Vehicle Speed Control System Using Ultrasonic Range Finder

In vehicle driving, speed control is vital becauseof whether fast or slow driving may be collision,accidences, delay and jam the traffic.These types of cases can be reduced or eliminatedfrom the driving by using electronic controltechnology. In this paper ultrasonic range finderdetects the distance between the vehicle and theobstacle during driving and speed control isdepending on this detected distance. Pulse WidthModulation (PWM) controls the voltage of the motor.The duty cycle value (PWM) is calculated by fuzzylogic control system based on detected distance andcurrent (PWM) duty value. The process of detectiondistance and PWM output are controlled byMicrocontroller (PIC18F452). The detected distanceis less then 50 CM the vehicle will stop. The vehiclecan go only forward direction. The control strategyis implemented by using MikroC language