Motor speed monitors and control system using GSM modem
The purpose of this project is to control the speed and direction of DC Motor using Microcontroller and GSM Modem with password protection. This uses a PWM Pulse Width Modulation) technique to control the speed of motor from 0% to 100%. The speed of the motor is measured using contact-less speed measurement technique. Speed control is done using PWM (Pulse Width Modulation) method. User can send SMS messages to control the motor speed and direction. A GSM modem attached to the control unit handles automatic SMS sending and receiving process. As this monitoring and controlling can be done by any mobile phone, we provided a security feature by implementing password-based protection. User has to send the password along with the commands to be controlled.
GSM Modem connected to microcontroller unit is used to control the motor and know the motor live speed. Microcontroller automatically reads the SMS messages stored in the SIM card and takes necessary action like speed control, direction control etc. There will be a particular code that needs to be sent through SMS to set the speed and get the speed from the DC motor
Features of this project:
1. Remote monitoring and controlling of DC motor.
2. Can be operated from anywhere in the world.
3. Reliable for industrial and domestic needs.
4. Automatic remote speed measurement.
1. Remote monitoring and controlling of DC motor.
2. Can be operated from anywhere in the world.
3. Reliable for industrial and domestic needs.
4. Automatic remote speed measurement.
Hall Effect Sensor based non-contact tachometer for electrical motors speed measurement
Hall Effect Sensor based non-contact tachometer for electrical motors speed measurement
The purpose of this project is to design and construct a non-contact type of Tachometer. A tachometer(also called a revolution-counter, rev-counter, or RPM gauge) is an instrument that measures the rotation speed of a shaft or disk, as in a motor or other machine. Hall Effect sensors typically use a rotating target attached to a wheel, gearbox or motor. This target may contain magnets, or it may be a toothed wheel. The teeth on the wheel vary the flux density of a magnet inside the sensor head.
Engineering Project Topics and Project Ideas
Single Phasing Monitoring and Prevention System for 3-phase Industrial Loads
The aim of this project is to construct a single phasing monitor and prevention system using 8-bit microcontroller. Anti-single phasing relays or single phasing preventer are required for critical loads and circuits. These are required because the normal overload protection doesn't trip on time. For large air-conditioning compressors, irrigation pumps these are sometimes, included.
The purpose of this project is to develop an intelligent system that continuously monitors all the three phase voltages (High voltage AC) and if any of these three phases is disconnected then this system takes the preventive action. The preventive action could be disconnecting the power supply immediately to the load by operating an electromagnetic relay. This system also alerts the user using visual or audible indicators.
This system consists of three optically isolated high voltage sensors for sensing the presence of high voltage in the respective circuits. One of the voltage sensors is connected to phase line of the supply and the other is connected to neutral line. A micro controller based control system continuously monitors the voltage in all the three phases of the power supply circuit. In ideal conditions all the three phases gets the same voltage. The visual indicators display the health status of all three phases (Red, Yellow and Green). But, when any of the phases gets disconnected then in such situations the micro controller-based system alerts the user about this in the form of visual or audible alerts.
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