Generally, several home equipment can be controlled by switches. But these days we can observe the home automation to control the appliances using various technologies. This article presents the DTMF based load control system. The term DTMF stands for Dual Tone Multi Frequency is a signalling system for recognizing the DTMF keys on a keypad. The applications of DTMF include telecommunication signalling over analogue telephone lines in the voice frequency band among telephone handsets and communication devices. So, when you make a call for customer care they will request you to push any number. When you push any number on your mobile keypad, one specific action will occur because of DTMF. When a keypad button is pressed in a mobile keypad, instantly it will produce a tone of two frequencies called column and row frequencies. Here, the column frequencies are high frequencies and row frequencies are low frequencies.
Voltage variations have always been a trouble and are liable for most of the breakdown in AC appliances. Be it a usual home appliance such as a Toaster or a high-performance industrial apparatus like a CNC; everything has a rated voltage only on which it will run without any problem at its maximum efficiency. Unfortunately, our Industrial Lines be unsuccessful to offer us that rated voltage due to a variety of reasons, hence in this project we are going to make a simple electronic circuit breaker which could activate a relay to detach the load when a high or low voltage detected.
The motor is a most crucial electrical device in the current period of automation. These are used in various industrial applications, but can be protected from the various faluts like mechanical, electrical faults to help their purposes. This article discusses an induction motor protection system from emerging faults by employing a microcontroller. This motor experiences different types of electrical faults like over voltage, under voltage, overload, unbalanced voltage, phase reversing earth fault, and single phasing. Due to these electrical faults, the motor’s windings will get heated which lead to decrease the life of the motor. The degree of the induction motor depends on the costs and functions of the motor.
The robot is a machine or electro-mechanical device used for various purposes and the working and controlling of a robot can be done with the help of programming techniques. There are different types of robots are available based on their applications like industrial robots, space robots, military robots, walking robots, domestic robots, climbing robots, and so on. In this article, let us discuss a special type of robotic vehicle namely line following, walking and climbing robotic vehicle. The robotic vehicles like line following, walking and climbing robotic vehicles are special sort of robots designed without a human on board. These robots are operated and controlled by employing various sensor-based control systems. These robots are specially designed in some conditions like where human beings are not capable to go in such as fire accidents, very high or very low temperatures, etc.,
While driving on highway, traveler should not exceed maximum speed limit allowed for their vehicle. However accidents keep happening due to speed violation since the drivers tends to ignore their speedometers. The speed checker will come for the highway traffic police as it will only provide digital display in accordance with a vehicle speed but also give an alarm if the vehicle exceeds the permitted speed for the highway. This article presents a rash driving detection system to detect rash driving on highways and to aware the traffic authorities in case of any contravention. In past, there are several devices to detect rash driving on highways but, most of the advances need human interference and need a lot of effort, which is hard to execute. In this, we intend to design a system namely speed checker to detect rash driving on highways.
The automatic door opening systems are used in commercial buildings, shopping malls, theaters, etc. These systems are used to open and close the door when a person comes near to the entry of the door and close it after the person entered into the door. This kind of system can be built by using various kinds of sensors such as PIR sensors, Radar sensors, Laser sensors,and Infrared sensors etc. This project uses a PIR sensor to sense the infrared (IR) energy generated by the human body.When somebody come close to the door, the IR energy sensed by the sensor transforms and triggers the sensor to open and close the door routinely. Further, the indication sent to microcontroller to control the door.
The electronic eye controlled security system is invented in the year 1997, base of operations in New Delhi. There are some organizations under the security systems are electronic eye Pvt. Ltd, Indian institute of science & technology, electronic eye systems, and Mahamahi Exims. This system creates a whole collection of high-tech security and surveillance products. These 0Systems work on the combination of system and project execution at the customers place for numerous surveillance products. This article discusses what is an electronic eye and electronic eye controlled security system project with a brief explanation.
For the satisfactory working of all devices, it is suggested to permit voltage at setting limits. Voltage variations in electric power supply definitely have adverse effects on different loads. These voltage fluctuations can be caused by several reasons such as voltage surges, overload, lightning, etc. Over voltages are the voltages that beat the normal values which cause insulation loss to electrical appliances leading to short circuits. Likewise, under-voltage causes overloading of the apparatus leading to lamp sparks and ineffective performance of the apparatus. Thus, this article is proposed to give over voltage and under voltage protection.To understand this concept and know it well, one request to go through this concept.
Solar Inverter Currently, the necessity of the solar inverter has been improving day by day. It is a common inverter, but uses energy from the sun that is termed as “solar energy”. This kind of inverter helps in changing the DC-AC uses solar power. In this circuit, the DC power flows in one direction and also assists in supplying current when there is no electricity.DC is used for minor appliances like electronic gadgets, MP3 players, iPod, etc (where there is power stored in the battery). In the case of alternative current (AC) is the power that stores back and forth inside the circuit. Usually, the AC power is used for home appliances. A solar inverter aids several devices that work on DC power to run on AC power so that the worker makes use of the AC power. If you are thinking this inverter is as an alternate to the normal electric one, then it is due to the solar inverter that makes use of the solar energy which is available in sufficient from the Sun and is spotless and also pollution free.
Till the last decades, a million miles of cables are wound in the air across the country. But now it is placed in the underground, which is higher to an earlier method. Because, underground cables are not affected by any opposing weather condition like heavy rainfall, pollution, snow, and storm, etc. But, when any fault occurs in cable, it is very difficult to discover the exact place of the faulty due to not knowing the exact location of the cable. Currently, the world is becoming digitized so this project is proposed to find the fault cable location in a digital way. When the fault arises, the method of repairing connected to that specific cable is very difficult.