211 SRI RAMAKRISHNA MISSION VIDYALYA POLYTECHNIC COLLEGE.

  The   Internet of Things (IoT)   provides the ability to interconnect computing devices, mechanical machines, objects, animals or unique identifiers and people to transfer data across a network without the need for human-to-human or human-to-computer is a system of conversation.   IoT applications   bring a lot of value in our lives. The Internet of Things provides objects,   computing devices , or   unique identifiers   and people's ability to transfer data across a network without the   human-to-human   or   human-to-computer interaction . A traffic camera is an intelligent device. The camera monitors  traffic congestion, accidents  and  weather conditions  and can access it to a common entrance.

 https://paultan.org/2023/07/28/new-eu-law-mandates-ev-chargers-every-60-km/

vacuum cleaner , sometimes called a   robovac   or a   roomba   as a   generic trademark , is an   autonomous robotic   vacuum cleaner   which Automatic  vacuum   floor cleaning   system combined with sensors and robotic drives with programmable controllers and cleaning routines. Early designs included manual operation via   remote control   and a "self-drive" mode which allowed the machine to clean autonomously.   Some designs use spinning brushes to reach tight corners, and some include a number of cleaning features along with the vacuuming feature (mopping,   UV sterilization , etc.). [2]   More recent models use   artificial intelligence   and   deep learning   for better mapping, object identification and event-based cleaning. A cleaning robot from 2006 Marketing materials for robotic vacuums frequently cite low noise, ease of use, and autonomous cleaning as main advantages.The perc...

Drug Dispenser A medication dispenser is necessary for elderly people to have in-time medication. The drug dispenser provides the correct amount of doses at the right time. The advantage of drug dispensing is the risk of underdose or overdose. You can have medicine with peace of mind without forgetting. Digital Stethoscope Digital Stethoscope is a measuring instrument used to listen sounds generated in the body, especially the heart and respiratory lungs. Applications of Digital Stethoscope Telemedicine Hearing aid for impaired personnel Recording heart and lung sounds Online education on medical research

  Miniature Circuit Breaker (MCB) Safety is the first concern when choosing electrical appliances or devices. When the power fluctuates or excess current flows, it causes damage resulting in an overload or short circuit. Hence, it is essential to incorporate a device as a safety element to provide over current protection to the electrical devices/circuits. Fuse is one of the most common devices used in the early days to protect the circuit. A fuse contains a metal wire or strip that melts when an overflow of current occurs by stopping or interrupting the current. In recent days the fuse has been replaced by a much more efficient and small electronic device known as  MCB – Miniature Circuit What Is A Miniature Circuit Breaker? Have you ever imagined what happens to your household devices, fan, washing machine, oven, fridge, and many more when a short circuit or overflow of current happens? These devices get burnt and lead to fire accidents if proper circuit breakers are not ins...

  Developer arduino.cc Manufacturer Arduino Type Single-board microcontroller Operating system None (default) /  Xinu CPU Atmel AVR  (8-bit) ARM Cortex-M0+  (32-bit) ARM Cortex-M3  (32-bit) Intel Quark  ( x86 ) (32-bit) Memory SRAM Storage Flash ,  EEPRO Arduino  is an  open-source hardware  and  software  company, project, and user community that designs and manufactures  single-board microcontrollers  and  microcontroller  kits for building digital devices. Its hardware products are licensed under a  CC BY-SA license , while the software is licensed under the  GNU Lesser General Public License  (LGPL) or the  GNU General Public License  (GPL), permitting the  manufacture  of Arduino boards and software distribution by anyone. Arduino boards are available commercially from the official  website  or through authorized distributors. Arduino board designs use a...

 https://www.nbcnews.com/nightly-news/video/could-solar-powered-cars-be-the-future-of-electric-vehicles-188945989602

  Electrical impulses (generated by   sinus node ) are required for proper functioning of the heart. This may not happen due to abnormal heart rhythms and several health factors. During this condition, the heart will not receive the signals from the sinus node at a fixed rate. The Pacemaker is a device used to resolve the missing heartbeat or slow heartbeat by generating electrical pulses and bringing back the heart to working condition. Pacemaker Operation The voltage source generates power for the pacemaker device.   The sensing amplifier amplifies the low power ECG signal. The amplified output is given to Timer for providing accurate timing pulses. The output driver injects the timed electrical pulse via electrodes to the patient. This makes the heart beat count in normal working condition.

  Thyristors   are a broad classification of bipolar-conducting semiconductor devices having four (or more) alternating N-P-N-P layers. Thyristors include:  silicon controlled rectifier   (SCR),  TRIAC , gate turn off switch (GTO),  silicon controlled switch   (SCS), AC diode (DIAC),  unijunction transistor   (UJT), programmable unijunction transistor (PUT). Only the SCR is examined in this section; though the GTO is mentioned. Shockley proposed the four-layer diode thyristor in 1950. It was not realized until years later at General Electric. SCR’s are now available to handle power levels spanning watts to megawatts. The smallest devices, packaged like small-signal transistors, switch 100’s of milliamps at near 100 VAC. The largest packaged devices are 172 mm in diameter, switching 5600 Amps at 10,000 VAC. The highest power SCR’s may consist of a whole semiconductor wafer several inches in diameter (100’s of mm). Silicon Controlled Rectifier ...

  What is a UPS? UPS  stands for  Uninterruptible Power Supply . An Uninterruptible Power Supply (UPS) is an electrical device used to provide emergency electrical power to different electrical loads in the case of a main power supply failure. A UPS or uninterruptible power supply uses batteries and supercapacitors to store electrical energy and delivers this stored electrical energy when the main input power supply fails. However, a typical UPS battery can supply electrical power for a short duration. Hence, UPSs are mostly used as short run time backup power sources for small loads. In addition to supplying emergency electrical power to the loads, a UPS also protects sensitive equipment such as computers, data centers, TV sets, industrial process control and monitoring systems, and many other electronic devices. A UPS is commonly used with computers that keep running a computer for a short time, about 15 to 30 minutes, after the failure of supply mains. Therefore, it pr...

InStabilizer: Introduction to Stabilizer  The embedding of microprocessor chip technology and power electronic devices in the design of intelligent  AC voltage stabilizers  (or automatic voltage regulators (AVR)) led to produce high-quality, stable electric power supply in the event of significant and continuous deviation of mains voltage. As advancement to the conventional relay type voltage stabilizers, modern innovative stabilizers use high performance digital control circuits and solid state control circuitry that eliminates  potentiometer  adjustments and allows the user to set voltage requirements through a keypad, with output start and stop facility. This also led to make the trip timing or responsiveness of the stabilizers to a very less rate, typically less than a few milliseconds, in addition this can be adjusted with variable setting. Nowadays, stabilizers became an optimized power solution to many electronic appliances that are sensitive to voltage f...

  Chandrayaan-3  is the third lunar exploration mission by the  Indian Space Research Organization  (ISRO).  It consists of a lander and the  Pragyan  rover similar to  Chandrayaan-2 , but does not have an orbiter.  Its propulsion module behaves like a communication relay satellite.  The propulsion module carries the lander and rover configuration until the spacecraft is in a 100 km lunar orbit Propulsion Module: Chandrayaan -3 Propulsion The propulsion module will carry the lander and rover configuration till 100 km lunar orbit. It is a box-like structure with one large solar panel mounted on one side and a large cylinder on top (the Intermodular Adapter Cone) that acts as a mounting structure for the lander. In addition to the lander, the module carries a payload called Spectro-polarimetry of Habitable Planet Earth (SHAPE) to study the spectral and polarimetric measurements of Earth from the lunar orbit in the near-infrared (NIR) wave...

  What's electron flow? Electron flow is what we think of as electrical current.  We are familiar with two types of electron flow, Direct Current, or DC, and Alternating Current, or AC.  Direct Current is the kind of electrical flow we get from batteries and solar cells, when electrons travel in only one direction.  On the other hand, AC is the kind of electrical flow we get from a typical electrical outlet in a home.  AC is when the electrons flow in two directions, from the positive to the negative terminal and from the negative to the positive terminal, 'alternating' between the two directions.  (Your lights will light up regardless of the direction of the electron flow.) A lot of people think of electron flow as electrons moving along a wire freely like cars go down a highway. Actually, it works a little differently. Any conductor (thing that electricity can go through) is made of atoms. Each atom has electrons in it. If you put new electrons in a condu...